Merge pull request 'MyFSIO v0.2.1 Release' (#13 ) from next into main

Reviewed-on: #13
Add AGPLv3 license
2026-01-12 08:03:29 +00:00 · 2026-01-12 15:52:34 +08:00 · 2026-01-12 15:35:20 +08:00 · 2026-01-12 15:20:45 +08:00 · 2026-01-12 14:25:07 +08:00 · 2026-01-11 22:36:04 +08:00
62 changed files with 16212 additions and 3818 deletions
--- a/2
+++ b/2
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.7
-FROM python:3.11-slim
+FROM python:3.12.12-slim
 ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1
--- a/661
+++ b/661
@@ -0,0 +1,661 @@
                    GNU AFFERO GENERAL PUBLIC LICENSE
                       Version 3, 19 November 2007
 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
                            Preamble
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 of the code.  There are many ways you could offer source, and different
 solutions will be better for different programs; see section 13 for the
 specific requirements.
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU AGPL, see
 <https://www.gnu.org/licenses/>.
--- a/README.md
+++ b/README.md
@@ -1,117 +1,251 @@
-# MyFSIO (Flask S3 + IAM)
+# MyFSIO
-MyFSIO is a batteries-included, Flask-based recreation of Amazon S3 and IAM workflows built for local development. The design mirrors the [AWS S3 documentation](https://docs.aws.amazon.com/s3/) wherever practical: bucket naming, Signature Version 4 presigning, Version 2012-10-17 bucket policies, IAM-style users, and familiar REST endpoints.
+A lightweight, S3-compatible object storage system built with Flask. MyFSIO implements core AWS S3 REST API operations with filesystem-backed storage, making it ideal for local development, testing, and self-hosted storage scenarios.
-## Why MyFSIO?
+## Features
- **Dual servers:** Run both the API (port 5000) and UI (port 5100) with a single command: `python run.py`.
+**Core Storage**
- **IAM + access keys:** Users, access keys, key rotation, and bucket-scoped actions (`list/read/write/delete/policy`) now live in `data/.myfsio.sys/config/iam.json` and are editable from the IAM dashboard.
+- S3-compatible REST API with AWS Signature Version 4 authentication
- **Bucket policies + hot reload:** `data/.myfsio.sys/config/bucket_policies.json` uses AWS' policy grammar (Version `2012-10-17`) with a built-in watcher, so editing the JSON file applies immediately. The UI also ships Public/Private/Custom presets for faster edits.
+- Bucket and object CRUD operations
- **Presigned URLs everywhere:** Signature Version 4 presigned URLs respect IAM + bucket policies and replace the now-removed "share link" feature for public access scenarios.
+- Object versioning with version history
- **Modern UI:** Responsive tables, quick filters, preview sidebar, object-level delete buttons, a presign modal, and an inline JSON policy editor that respects dark mode keep bucket management friendly. The object browser supports folder navigation, infinite scroll pagination, bulk operations, and automatic retry on load failures.
+- Multipart uploads for large files
- **Tests & health:** `/healthz` for smoke checks and `pytest` coverage for IAM, CRUD, presign, and policy flows.
+- Presigned URLs (1 second to 7 days validity)
-## Architecture at a Glance
+**Security & Access Control**
 - IAM users with access key management and rotation
 - Bucket policies (AWS Policy Version 2012-10-17)
 - Server-side encryption (SSE-S3 and SSE-KMS)
 - Built-in Key Management Service (KMS)
 - Rate limiting per endpoint
 **Advanced Features**
 - Cross-bucket replication to remote S3-compatible endpoints
 - Hot-reload for bucket policies (no restart required)
 - CORS configuration per bucket
 **Management UI**
 - Web console for bucket and object management
 - IAM dashboard for user administration
 - Inline JSON policy editor with presets
 - Object browser with folder navigation and bulk operations
 - Dark mode support
 ## Architecture
 ```
-+-----------------+        +----------------+
+------------------+         +------------------+
-| API Server      |<----->| Object storage |
+|   API Server     |         |   UI Server      |
-| (port 5000)     |        | (filesystem)   |
+|   (port 5000)    |         |   (port 5100)    |
-|  - S3 routes    |        +----------------+
+|                  |         |                  |
-|  - Presigned URLs |
+|  - S3 REST API   |<------->|  - Web Console   |
-|  - Bucket policy  |
+|  - SigV4 Auth    |         |  - IAM Dashboard |
-+-----------------+
+|  - Presign URLs  |         |  - Bucket Editor |
-        ^
+--------+---------+         +------------------+
         |
-+-----------------+
+         v
-| UI Server       |
+------------------+         +------------------+
-| (port 5100)     |
+| Object Storage   |         | System Metadata  |
-|  - Auth console |
+| (filesystem)     |         | (.myfsio.sys/)   |
-|  - IAM dashboard|
+|                  |         |                  |
-|  - Bucket editor|
+| data/<bucket>/   |         | - IAM config     |
-+-----------------+
+|   <objects>      |         | - Bucket policies|
 |                  |         | - Encryption keys|
 +------------------+         +------------------+
 ```
-Both apps load the same configuration via `AppConfig` so IAM data and bucket policies stay consistent no matter which process you run.
+## Quick Start
 Bucket policies are automatically reloaded whenever `bucket_policies.json` changes—no restarts required.
 ## Getting Started
 ```bash
 # Clone and setup
 git clone https://gitea.jzwsite.com/kqjy/MyFSIO
 cd s3
 python -m venv .venv
-. .venv/Scripts/activate  # PowerShell: .\.venv\Scripts\Activate.ps1
+
 # Activate virtual environment
 # Windows PowerShell:
 .\.venv\Scripts\Activate.ps1
 # Windows CMD:
 .venv\Scripts\activate.bat
 # Linux/macOS:
 source .venv/bin/activate
 # Install dependencies
 pip install -r requirements.txt
-# Run both API and UI (default)
+# Start both servers
 python run.py
-# Or run individually:
+# Or start individually
-# python run.py --mode api
+python run.py --mode api   # API only (port 5000)
-# python run.py --mode ui
+python run.py --mode ui    # UI only (port 5100)
 ```
-Visit `http://127.0.0.1:5100/ui` for the console and `http://127.0.0.1:5000/` for the raw API. Override ports/hosts with the environment variables listed below.
+**Default Credentials:** `localadmin` / `localadmin`
-## IAM, Access Keys, and Bucket Policies
+- **Web Console:** http://127.0.0.1:5100/ui
-
+- **API Endpoint:** http://127.0.0.1:5000
 - First run creates `data/.myfsio.sys/config/iam.json` with `localadmin / localadmin` (full control). Sign in via the UI, then use the **IAM** tab to create users, rotate secrets, or edit inline policies without touching JSON by hand.
 - Bucket policies live in `data/.myfsio.sys/config/bucket_policies.json` and follow the AWS `arn:aws:s3:::bucket/key` resource syntax with Version `2012-10-17`. Attach/replace/remove policies from the bucket detail page or edit the JSON by hand—changes hot reload automatically.
 - IAM actions include extended verbs (`iam:list_users`, `iam:create_user`, `iam:update_policy`, etc.) so you can control who is allowed to manage other users and policies.
 ### Bucket Policy Presets & Hot Reload
 - **Presets:** Every bucket detail view includes Public (read-only), Private (detach policy), and Custom presets. Public auto-populates a policy that grants anonymous `s3:ListBucket` + `s3:GetObject` access to the entire bucket.
 - **Custom drafts:** Switching back to Custom restores your last manual edit so you can toggle between presets without losing work.
 - **Hot reload:** The server watches `bucket_policies.json` and reloads statements on-the-fly—ideal for editing policies in your favorite editor while testing Via curl or the UI.
 ## Presigned URLs
 Presigned URLs follow the AWS CLI playbook:
 - Call `POST /presign/<bucket>/<key>` (or use the "Presign" button in the UI) to request a Signature Version 4 URL valid for 1 second to 7 days.
 - The generated URL honors IAM permissions and bucket-policy decisions at generation-time and again when somebody fetches it.
 - Because presigned URLs cover both authenticated and public sharing scenarios, the legacy "share link" feature has been removed.
 ## Configuration
 | Variable | Default | Description |
-| --- | --- | --- |
+|----------|---------|-------------|
-| `STORAGE_ROOT` | `<project>/data` | Filesystem root for bucket directories |
+| `STORAGE_ROOT` | `./data` | Filesystem root for bucket storage |
-| `MAX_UPLOAD_SIZE` | `1073741824` | Maximum upload size (bytes) |
+| `IAM_CONFIG` | `.myfsio.sys/config/iam.json` | IAM user and policy store |
-| `UI_PAGE_SIZE` | `100` | `MaxKeys` hint for listings |
+| `BUCKET_POLICY_PATH` | `.myfsio.sys/config/bucket_policies.json` | Bucket policy store |
-| `SECRET_KEY` | `dev-secret-key` | Flask session secret for the UI |
+| `API_BASE_URL` | `http://127.0.0.1:5000` | API endpoint for UI calls |
-| `IAM_CONFIG` | `<project>/data/.myfsio.sys/config/iam.json` | IAM user + policy store |
+| `MAX_UPLOAD_SIZE` | `1073741824` | Maximum upload size in bytes (1 GB) |
-| `BUCKET_POLICY_PATH` | `<project>/data/.myfsio.sys/config/bucket_policies.json` | Bucket policy store |
+| `MULTIPART_MIN_PART_SIZE` | `5242880` | Minimum multipart part size (5 MB) |
-| `API_BASE_URL` | `http://127.0.0.1:5000` | Used by the UI when calling API endpoints (presign, bucket policy) |
+| `UI_PAGE_SIZE` | `100` | Default page size for listings |
-| `AWS_REGION` | `us-east-1` | Region used in Signature V4 scope |
+| `SECRET_KEY` | `dev-secret-key` | Flask session secret |
-| `AWS_SERVICE` | `s3` | Service used in Signature V4 scope |
+| `AWS_REGION` | `us-east-1` | Region for SigV4 signing |
 | `AWS_SERVICE` | `s3` | Service name for SigV4 signing |
 | `ENCRYPTION_ENABLED` | `false` | Enable server-side encryption |
 | `KMS_ENABLED` | `false` | Enable Key Management Service |
 | `LOG_LEVEL` | `INFO` | Logging verbosity |
-> Buckets now live directly under `data/` while system metadata (versions, IAM, bucket policies, multipart uploads, etc.) lives in `data/.myfsio.sys`.
+## Data Layout
 ## API Cheatsheet (IAM headers required)
 ```
-GET    /                               -> List buckets (XML)
+data/
-PUT    /<bucket>                       -> Create bucket
+├── <bucket>/                    # User buckets with objects
-DELETE /<bucket>                       -> Delete bucket (must be empty)
+└── .myfsio.sys/                 # System metadata
-GET    /<bucket>                       -> List objects (XML)
+    ├── config/
-PUT    /<bucket>/<key>                 -> Upload object (binary stream)
+    │   ├── iam.json             # IAM users and policies
-GET    /<bucket>/<key>                 -> Download object
+    │   ├── bucket_policies.json # Bucket policies
-DELETE /<bucket>/<key>                 -> Delete object
+    │   ├── replication_rules.json
-POST   /presign/<bucket>/<key>         -> Generate AWS SigV4 presigned URL (JSON)
+    │   └── connections.json     # Remote S3 connections
-GET    /bucket-policy/<bucket>         -> Fetch bucket policy (JSON)
+    ├── buckets/<bucket>/
-PUT    /bucket-policy/<bucket>         -> Attach/replace bucket policy (JSON)
+    │   ├── meta/                # Object metadata (.meta.json)
-DELETE /bucket-policy/<bucket>         -> Remove bucket policy
+    │   ├── versions/            # Archived object versions
    │   └── .bucket.json         # Bucket config (versioning, CORS)
    ├── multipart/               # Active multipart uploads
    └── keys/                    # Encryption keys (SSE-S3/KMS)
 ```
 ## API Reference
 All endpoints require AWS Signature Version 4 authentication unless using presigned URLs or public bucket policies.
 ### Bucket Operations
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `GET` | `/` | List all buckets |
 | `PUT` | `/<bucket>` | Create bucket |
 | `DELETE` | `/<bucket>` | Delete bucket (must be empty) |
 | `HEAD` | `/<bucket>` | Check bucket exists |
 ### Object Operations
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `GET` | `/<bucket>` | List objects (supports `list-type=2`) |
 | `PUT` | `/<bucket>/<key>` | Upload object |
 | `GET` | `/<bucket>/<key>` | Download object |
 | `DELETE` | `/<bucket>/<key>` | Delete object |
 | `HEAD` | `/<bucket>/<key>` | Get object metadata |
 | `POST` | `/<bucket>/<key>?uploads` | Initiate multipart upload |
 | `PUT` | `/<bucket>/<key>?partNumber=N&uploadId=X` | Upload part |
 | `POST` | `/<bucket>/<key>?uploadId=X` | Complete multipart upload |
 | `DELETE` | `/<bucket>/<key>?uploadId=X` | Abort multipart upload |
 ### Presigned URLs
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `POST` | `/presign/<bucket>/<key>` | Generate presigned URL |
 ### Bucket Policies
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `GET` | `/bucket-policy/<bucket>` | Get bucket policy |
 | `PUT` | `/bucket-policy/<bucket>` | Set bucket policy |
 | `DELETE` | `/bucket-policy/<bucket>` | Delete bucket policy |
 ### Versioning
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `GET` | `/<bucket>/<key>?versionId=X` | Get specific version |
 | `DELETE` | `/<bucket>/<key>?versionId=X` | Delete specific version |
 | `GET` | `/<bucket>?versions` | List object versions |
 ### Health Check
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | `GET` | `/healthz` | Health check endpoint |
 ## IAM & Access Control
 ### Users and Access Keys
 On first run, MyFSIO creates a default admin user (`localadmin`/`localadmin`). Use the IAM dashboard to:
 - Create and delete users
 - Generate and rotate access keys
 - Attach inline policies to users
 - Control IAM management permissions
 ### Bucket Policies
 Bucket policies follow AWS policy grammar (Version `2012-10-17`) with support for:
 - Principal-based access (`*` for anonymous, specific users)
 - Action-based permissions (`s3:GetObject`, `s3:PutObject`, etc.)
 - Resource patterns (`arn:aws:s3:::bucket/*`)
 - Condition keys
 **Policy Presets:**
 - **Public:** Grants anonymous read access (`s3:GetObject`, `s3:ListBucket`)
 - **Private:** Removes bucket policy (IAM-only access)
 - **Custom:** Manual policy editing with draft preservation
 Policies hot-reload when the JSON file changes.
 ## Server-Side Encryption
 MyFSIO supports two encryption modes:
 - **SSE-S3:** Server-managed keys with automatic key rotation
 - **SSE-KMS:** Customer-managed keys via built-in KMS
 Enable encryption with:
 ```bash
 ENCRYPTION_ENABLED=true python run.py
 ```
 ## Cross-Bucket Replication
 Replicate objects to remote S3-compatible endpoints:
 1. Configure remote connections in the UI
 2. Create replication rules specifying source/destination
 3. Objects are automatically replicated on upload
 ## Docker
 ```bash
 docker build -t myfsio .
 docker run -p 5000:5000 -p 5100:5100 -v ./data:/app/data myfsio
 ```
 ## Testing
 ```bash
-pytest -q
+# Run all tests
 pytest tests/ -v
 # Run specific test file
 pytest tests/test_api.py -v
 # Run with coverage
 pytest tests/ --cov=app --cov-report=html
 ```
 ## References
- [Amazon Simple Storage Service Documentation](https://docs.aws.amazon.com/s3/)
+- [Amazon S3 Documentation](https://docs.aws.amazon.com/s3/)
- [Signature Version 4 Signing Process](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html)
+- [AWS Signature Version 4](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html)
- [Amazon S3 Bucket Policy Examples](https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-bucket-policies.html)
+- [S3 Bucket Policy Examples](https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-bucket-policies.html)
--- a/app/init.py
+++ b/app/init.py
@@ -1,4 +1,3 @@
 """Application factory for the mini S3-compatible object store."""
 from __future__ import annotations
 import logging
@@ -16,6 +15,9 @@ from flask_cors import CORS
 from flask_wtf.csrf import CSRFError
 from werkzeug.middleware.proxy_fix import ProxyFix
 from .access_logging import AccessLoggingService
 from .compression import GzipMiddleware
 from .acl import AclService
 from .bucket_policies import BucketPolicyStore
 from .config import AppConfig
 from .connections import ConnectionStore
@@ -23,6 +25,9 @@ from .encryption import EncryptionManager
 from .extensions import limiter, csrf
 from .iam import IamService
 from .kms import KMSManager
 from .lifecycle import LifecycleManager
 from .notifications import NotificationService
 from .object_lock import ObjectLockService
 from .replication import ReplicationManager
 from .secret_store import EphemeralSecretStore
 from .storage import ObjectStorage
@@ -85,13 +90,24 @@ def create_app(
    # Trust X-Forwarded-* headers from proxies
    app.wsgi_app = ProxyFix(app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_prefix=1)
    # Enable gzip compression for responses (10-20x smaller JSON payloads)
    if app.config.get("ENABLE_GZIP", True):
        app.wsgi_app = GzipMiddleware(app.wsgi_app, compression_level=6)
    _configure_cors(app)
    _configure_logging(app)
    limiter.init_app(app)
    csrf.init_app(app)
-    storage = ObjectStorage(Path(app.config["STORAGE_ROOT"]))
+    storage = ObjectStorage(
        Path(app.config["STORAGE_ROOT"]),
        cache_ttl=app.config.get("OBJECT_CACHE_TTL", 5),
    )
    if app.config.get("WARM_CACHE_ON_STARTUP", True) and not app.config.get("TESTING"):
        storage.warm_cache_async()
    iam = IamService(
        Path(app.config["IAM_CONFIG"]),
        auth_max_attempts=app.config.get("AUTH_MAX_ATTEMPTS", 5),
@@ -120,7 +136,7 @@ def create_app(
    )
    connections = ConnectionStore(connections_path)
-    replication = ReplicationManager(storage, connections, replication_rules_path)
+    replication = ReplicationManager(storage, connections, replication_rules_path, storage_root)
    encryption_config = {
        "encryption_enabled": app.config.get("ENCRYPTION_ENABLED", False),
@@ -140,6 +156,22 @@ def create_app(
        from .encrypted_storage import EncryptedObjectStorage
        storage = EncryptedObjectStorage(storage, encryption_manager)
    acl_service = AclService(storage_root)
    object_lock_service = ObjectLockService(storage_root)
    notification_service = NotificationService(storage_root)
    access_logging_service = AccessLoggingService(storage_root)
    access_logging_service.set_storage(storage)
    lifecycle_manager = None
    if app.config.get("LIFECYCLE_ENABLED", False):
        base_storage = storage.storage if hasattr(storage, 'storage') else storage
        lifecycle_manager = LifecycleManager(
            base_storage,
            interval_seconds=app.config.get("LIFECYCLE_INTERVAL_SECONDS", 3600),
            storage_root=storage_root,
        )
        lifecycle_manager.start()
    app.extensions["object_storage"] = storage
    app.extensions["iam"] = iam
    app.extensions["bucket_policies"] = bucket_policies
@@ -149,6 +181,11 @@ def create_app(
    app.extensions["replication"] = replication
    app.extensions["encryption"] = encryption_manager
    app.extensions["kms"] = kms_manager
    app.extensions["acl"] = acl_service
    app.extensions["lifecycle"] = lifecycle_manager
    app.extensions["object_lock"] = object_lock_service
    app.extensions["notifications"] = notification_service
    app.extensions["access_logging"] = access_logging_service
    @app.errorhandler(500)
    def internal_error(error):
@@ -266,16 +303,16 @@ def _configure_logging(app: Flask) -> None:
        "%(asctime)s | %(levelname)s | %(request_id)s | %(method)s %(path)s | %(message)s"
    )
    # Stream Handler (stdout) - Primary for Docker
    stream_handler = logging.StreamHandler(sys.stdout)
    stream_handler.setFormatter(formatter)
    stream_handler.addFilter(_RequestContextFilter())
    logger = app.logger
    for handler in logger.handlers[:]:
        handler.close()
    logger.handlers.clear()
    logger.addHandler(stream_handler)
    # File Handler (optional, if configured)
    if app.config.get("LOG_TO_FILE"):
        log_file = Path(app.config["LOG_FILE"])
        log_file.parent.mkdir(parents=True, exist_ok=True)
--- a/app/access_logging.py
+++ b/app/access_logging.py
@@ -0,0 +1,265 @@
 from __future__ import annotations
 import io
 import json
 import logging
 import queue
 import threading
 import time
 import uuid
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 logger = logging.getLogger(__name__)
@dataclass
 class AccessLogEntry:
    bucket_owner: str = "-"
    bucket: str = "-"
    timestamp: datetime = field(default_factory=lambda: datetime.now(timezone.utc))
    remote_ip: str = "-"
    requester: str = "-"
    request_id: str = field(default_factory=lambda: uuid.uuid4().hex[:16].upper())
    operation: str = "-"
    key: str = "-"
    request_uri: str = "-"
    http_status: int = 200
    error_code: str = "-"
    bytes_sent: int = 0
    object_size: int = 0
    total_time_ms: int = 0
    turn_around_time_ms: int = 0
    referrer: str = "-"
    user_agent: str = "-"
    version_id: str = "-"
    host_id: str = "-"
    signature_version: str = "SigV4"
    cipher_suite: str = "-"
    authentication_type: str = "AuthHeader"
    host_header: str = "-"
    tls_version: str = "-"
    def to_log_line(self) -> str:
        time_str = self.timestamp.strftime("[%d/%b/%Y:%H:%M:%S %z]")
        return (
            f'{self.bucket_owner} {self.bucket} {time_str} {self.remote_ip} '
            f'{self.requester} {self.request_id} {self.operation} {self.key} '
            f'"{self.request_uri}" {self.http_status} {self.error_code or "-"} '
            f'{self.bytes_sent or "-"} {self.object_size or "-"} {self.total_time_ms or "-"} '
            f'{self.turn_around_time_ms or "-"} "{self.referrer}" "{self.user_agent}" {self.version_id}'
        )
    def to_dict(self) -> Dict[str, Any]:
        return {
            "bucket_owner": self.bucket_owner,
            "bucket": self.bucket,
            "timestamp": self.timestamp.isoformat(),
            "remote_ip": self.remote_ip,
            "requester": self.requester,
            "request_id": self.request_id,
            "operation": self.operation,
            "key": self.key,
            "request_uri": self.request_uri,
            "http_status": self.http_status,
            "error_code": self.error_code,
            "bytes_sent": self.bytes_sent,
            "object_size": self.object_size,
            "total_time_ms": self.total_time_ms,
            "referrer": self.referrer,
            "user_agent": self.user_agent,
            "version_id": self.version_id,
        }
@dataclass
 class LoggingConfiguration:
    target_bucket: str
    target_prefix: str = ""
    enabled: bool = True
    def to_dict(self) -> Dict[str, Any]:
        return {
            "LoggingEnabled": {
                "TargetBucket": self.target_bucket,
                "TargetPrefix": self.target_prefix,
            }
        }
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> Optional["LoggingConfiguration"]:
        logging_enabled = data.get("LoggingEnabled")
        if not logging_enabled:
            return None
        return cls(
            target_bucket=logging_enabled.get("TargetBucket", ""),
            target_prefix=logging_enabled.get("TargetPrefix", ""),
            enabled=True,
        )
 class AccessLoggingService:
    def __init__(self, storage_root: Path, flush_interval: int = 60, max_buffer_size: int = 1000):
        self.storage_root = storage_root
        self.flush_interval = flush_interval
        self.max_buffer_size = max_buffer_size
        self._configs: Dict[str, LoggingConfiguration] = {}
        self._buffer: Dict[str, List[AccessLogEntry]] = {}
        self._buffer_lock = threading.Lock()
        self._shutdown = threading.Event()
        self._storage = None
        self._flush_thread = threading.Thread(target=self._flush_loop, name="access-log-flush", daemon=True)
        self._flush_thread.start()
    def set_storage(self, storage: Any) -> None:
        self._storage = storage
    def _config_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / "logging.json"
    def get_bucket_logging(self, bucket_name: str) -> Optional[LoggingConfiguration]:
        if bucket_name in self._configs:
            return self._configs[bucket_name]
        config_path = self._config_path(bucket_name)
        if not config_path.exists():
            return None
        try:
            data = json.loads(config_path.read_text(encoding="utf-8"))
            config = LoggingConfiguration.from_dict(data)
            if config:
                self._configs[bucket_name] = config
            return config
        except (json.JSONDecodeError, OSError) as e:
            logger.warning(f"Failed to load logging config for {bucket_name}: {e}")
            return None
    def set_bucket_logging(self, bucket_name: str, config: LoggingConfiguration) -> None:
        config_path = self._config_path(bucket_name)
        config_path.parent.mkdir(parents=True, exist_ok=True)
        config_path.write_text(json.dumps(config.to_dict(), indent=2), encoding="utf-8")
        self._configs[bucket_name] = config
    def delete_bucket_logging(self, bucket_name: str) -> None:
        config_path = self._config_path(bucket_name)
        try:
            if config_path.exists():
                config_path.unlink()
        except OSError:
            pass
        self._configs.pop(bucket_name, None)
    def log_request(
        self,
        bucket_name: str,
        *,
        operation: str,
        key: str = "-",
        remote_ip: str = "-",
        requester: str = "-",
        request_uri: str = "-",
        http_status: int = 200,
        error_code: str = "",
        bytes_sent: int = 0,
        object_size: int = 0,
        total_time_ms: int = 0,
        referrer: str = "-",
        user_agent: str = "-",
        version_id: str = "-",
        request_id: str = "",
    ) -> None:
        config = self.get_bucket_logging(bucket_name)
        if not config or not config.enabled:
            return
        entry = AccessLogEntry(
            bucket_owner="local-owner",
            bucket=bucket_name,
            remote_ip=remote_ip,
            requester=requester,
            request_id=request_id or uuid.uuid4().hex[:16].upper(),
            operation=operation,
            key=key,
            request_uri=request_uri,
            http_status=http_status,
            error_code=error_code,
            bytes_sent=bytes_sent,
            object_size=object_size,
            total_time_ms=total_time_ms,
            referrer=referrer,
            user_agent=user_agent,
            version_id=version_id,
        )
        target_key = f"{config.target_bucket}:{config.target_prefix}"
        should_flush = False
        with self._buffer_lock:
            if target_key not in self._buffer:
                self._buffer[target_key] = []
            self._buffer[target_key].append(entry)
            should_flush = len(self._buffer[target_key]) >= self.max_buffer_size
        if should_flush:
            self._flush_buffer(target_key)
    def _flush_loop(self) -> None:
        while not self._shutdown.is_set():
            self._shutdown.wait(timeout=self.flush_interval)
            if not self._shutdown.is_set():
                self._flush_all()
    def _flush_all(self) -> None:
        with self._buffer_lock:
            targets = list(self._buffer.keys())
        for target_key in targets:
            self._flush_buffer(target_key)
    def _flush_buffer(self, target_key: str) -> None:
        with self._buffer_lock:
            entries = self._buffer.pop(target_key, [])
        if not entries or not self._storage:
            return
        try:
            bucket_name, prefix = target_key.split(":", 1)
        except ValueError:
            logger.error(f"Invalid target key: {target_key}")
            return
        now = datetime.now(timezone.utc)
        log_key = f"{prefix}{now.strftime('%Y-%m-%d-%H-%M-%S')}-{uuid.uuid4().hex[:8]}"
        log_content = "\n".join(entry.to_log_line() for entry in entries) + "\n"
        try:
            stream = io.BytesIO(log_content.encode("utf-8"))
            self._storage.put_object(bucket_name, log_key, stream, enforce_quota=False)
            logger.info(f"Flushed {len(entries)} access log entries to {bucket_name}/{log_key}")
        except Exception as e:
            logger.error(f"Failed to write access log to {bucket_name}/{log_key}: {e}")
            with self._buffer_lock:
                if target_key not in self._buffer:
                    self._buffer[target_key] = []
                self._buffer[target_key] = entries + self._buffer[target_key]
    def flush(self) -> None:
        self._flush_all()
    def shutdown(self) -> None:
        self._shutdown.set()
        self._flush_all()
        self._flush_thread.join(timeout=5.0)
    def get_stats(self) -> Dict[str, Any]:
        with self._buffer_lock:
            buffered = sum(len(entries) for entries in self._buffer.values())
        return {
            "buffered_entries": buffered,
            "target_buckets": len(self._buffer),
        }
--- a/app/acl.py
+++ b/app/acl.py
@@ -0,0 +1,204 @@
 from __future__ import annotations
 import json
 from dataclasses import dataclass, field
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Set
 ACL_PERMISSION_FULL_CONTROL = "FULL_CONTROL"
 ACL_PERMISSION_WRITE = "WRITE"
 ACL_PERMISSION_WRITE_ACP = "WRITE_ACP"
 ACL_PERMISSION_READ = "READ"
 ACL_PERMISSION_READ_ACP = "READ_ACP"
 ALL_PERMISSIONS = {
    ACL_PERMISSION_FULL_CONTROL,
    ACL_PERMISSION_WRITE,
    ACL_PERMISSION_WRITE_ACP,
    ACL_PERMISSION_READ,
    ACL_PERMISSION_READ_ACP,
 }
 PERMISSION_TO_ACTIONS = {
    ACL_PERMISSION_FULL_CONTROL: {"read", "write", "delete", "list", "share"},
    ACL_PERMISSION_WRITE: {"write", "delete"},
    ACL_PERMISSION_WRITE_ACP: {"share"},
    ACL_PERMISSION_READ: {"read", "list"},
    ACL_PERMISSION_READ_ACP: {"share"},
 }
 GRANTEE_ALL_USERS = "*"
 GRANTEE_AUTHENTICATED_USERS = "authenticated"
@dataclass
 class AclGrant:
    grantee: str
    permission: str
    def to_dict(self) -> Dict[str, str]:
        return {"grantee": self.grantee, "permission": self.permission}
    @classmethod
    def from_dict(cls, data: Dict[str, str]) -> "AclGrant":
        return cls(grantee=data["grantee"], permission=data["permission"])
@dataclass
 class Acl:
    owner: str
    grants: List[AclGrant] = field(default_factory=list)
    def to_dict(self) -> Dict[str, Any]:
        return {
            "owner": self.owner,
            "grants": [g.to_dict() for g in self.grants],
        }
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> "Acl":
        return cls(
            owner=data.get("owner", ""),
            grants=[AclGrant.from_dict(g) for g in data.get("grants", [])],
        )
    def get_allowed_actions(self, principal_id: Optional[str], is_authenticated: bool = True) -> Set[str]:
        actions: Set[str] = set()
        if principal_id and principal_id == self.owner:
            actions.update(PERMISSION_TO_ACTIONS[ACL_PERMISSION_FULL_CONTROL])
        for grant in self.grants:
            if grant.grantee == GRANTEE_ALL_USERS:
                actions.update(PERMISSION_TO_ACTIONS.get(grant.permission, set()))
            elif grant.grantee == GRANTEE_AUTHENTICATED_USERS and is_authenticated:
                actions.update(PERMISSION_TO_ACTIONS.get(grant.permission, set()))
            elif principal_id and grant.grantee == principal_id:
                actions.update(PERMISSION_TO_ACTIONS.get(grant.permission, set()))
        return actions
 CANNED_ACLS = {
    "private": lambda owner: Acl(
        owner=owner,
        grants=[AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL)],
    ),
    "public-read": lambda owner: Acl(
        owner=owner,
        grants=[
            AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL),
            AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ),
        ],
    ),
    "public-read-write": lambda owner: Acl(
        owner=owner,
        grants=[
            AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL),
            AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ),
            AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_WRITE),
        ],
    ),
    "authenticated-read": lambda owner: Acl(
        owner=owner,
        grants=[
            AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL),
            AclGrant(grantee=GRANTEE_AUTHENTICATED_USERS, permission=ACL_PERMISSION_READ),
        ],
    ),
    "bucket-owner-read": lambda owner: Acl(
        owner=owner,
        grants=[
            AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL),
        ],
    ),
    "bucket-owner-full-control": lambda owner: Acl(
        owner=owner,
        grants=[
            AclGrant(grantee=owner, permission=ACL_PERMISSION_FULL_CONTROL),
        ],
    ),
 }
 def create_canned_acl(canned_acl: str, owner: str) -> Acl:
    factory = CANNED_ACLS.get(canned_acl)
    if not factory:
        return CANNED_ACLS["private"](owner)
    return factory(owner)
 class AclService:
    def __init__(self, storage_root: Path):
        self.storage_root = storage_root
        self._bucket_acl_cache: Dict[str, Acl] = {}
    def _bucket_acl_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / ".acl.json"
    def get_bucket_acl(self, bucket_name: str) -> Optional[Acl]:
        if bucket_name in self._bucket_acl_cache:
            return self._bucket_acl_cache[bucket_name]
        acl_path = self._bucket_acl_path(bucket_name)
        if not acl_path.exists():
            return None
        try:
            data = json.loads(acl_path.read_text(encoding="utf-8"))
            acl = Acl.from_dict(data)
            self._bucket_acl_cache[bucket_name] = acl
            return acl
        except (OSError, json.JSONDecodeError):
            return None
    def set_bucket_acl(self, bucket_name: str, acl: Acl) -> None:
        acl_path = self._bucket_acl_path(bucket_name)
        acl_path.parent.mkdir(parents=True, exist_ok=True)
        acl_path.write_text(json.dumps(acl.to_dict(), indent=2), encoding="utf-8")
        self._bucket_acl_cache[bucket_name] = acl
    def set_bucket_canned_acl(self, bucket_name: str, canned_acl: str, owner: str) -> Acl:
        acl = create_canned_acl(canned_acl, owner)
        self.set_bucket_acl(bucket_name, acl)
        return acl
    def delete_bucket_acl(self, bucket_name: str) -> None:
        acl_path = self._bucket_acl_path(bucket_name)
        if acl_path.exists():
            acl_path.unlink()
        self._bucket_acl_cache.pop(bucket_name, None)
    def evaluate_bucket_acl(
        self,
        bucket_name: str,
        principal_id: Optional[str],
        action: str,
        is_authenticated: bool = True,
    ) -> bool:
        acl = self.get_bucket_acl(bucket_name)
        if not acl:
            return False
        allowed_actions = acl.get_allowed_actions(principal_id, is_authenticated)
        return action in allowed_actions
    def get_object_acl(self, bucket_name: str, object_key: str, object_metadata: Dict[str, Any]) -> Optional[Acl]:
        acl_data = object_metadata.get("__acl__")
        if not acl_data:
            return None
        try:
            return Acl.from_dict(acl_data)
        except (TypeError, KeyError):
            return None
    def create_object_acl_metadata(self, acl: Acl) -> Dict[str, Any]:
        return {"__acl__": acl.to_dict()}
    def evaluate_object_acl(
        self,
        object_metadata: Dict[str, Any],
        principal_id: Optional[str],
        action: str,
        is_authenticated: bool = True,
    ) -> bool:
        acl = self.get_object_acl("", "", object_metadata)
        if not acl:
            return False
        allowed_actions = acl.get_allowed_actions(principal_id, is_authenticated)
        return action in allowed_actions
--- a/app/bucket_policies.py
+++ b/app/bucket_policies.py
@@ -1,11 +1,12 @@
 """Bucket policy loader/enforcer with a subset of AWS semantics."""
 from __future__ import annotations
 import json
 import re
 import time
 from dataclasses import dataclass
-from fnmatch import fnmatch
+from fnmatch import fnmatch, translate
 from pathlib import Path
-from typing import Any, Dict, Iterable, List, Optional, Sequence
+from typing import Any, Dict, Iterable, List, Optional, Pattern, Sequence, Tuple
 RESOURCE_PREFIX = "arn:aws:s3:::"
@@ -133,7 +134,22 @@ class BucketPolicyStatement:
    effect: str
    principals: List[str] | str
    actions: List[str]
-    resources: List[tuple[str | None, str | None]]
+    resources: List[Tuple[str | None, str | None]]
    # Performance: Pre-compiled regex patterns for resource matching
    _compiled_patterns: List[Tuple[str | None, Optional[Pattern[str]]]] | None = None
    def _get_compiled_patterns(self) -> List[Tuple[str | None, Optional[Pattern[str]]]]:
        """Lazily compile fnmatch patterns to regex for faster matching."""
        if self._compiled_patterns is None:
            self._compiled_patterns = []
            for resource_bucket, key_pattern in self.resources:
                if key_pattern is None:
                    self._compiled_patterns.append((resource_bucket, None))
                else:
                    # Convert fnmatch pattern to regex
                    regex_pattern = translate(key_pattern)
                    self._compiled_patterns.append((resource_bucket, re.compile(regex_pattern)))
        return self._compiled_patterns
    def matches_principal(self, access_key: Optional[str]) -> bool:
        if self.principals == "*":
@@ -149,15 +165,16 @@ class BucketPolicyStatement:
    def matches_resource(self, bucket: Optional[str], object_key: Optional[str]) -> bool:
        bucket = (bucket or "*").lower()
        key = object_key or ""
-        for resource_bucket, key_pattern in self.resources:
+        for resource_bucket, compiled_pattern in self._get_compiled_patterns():
            resource_bucket = (resource_bucket or "*").lower()
            if resource_bucket not in {"*", bucket}:
                continue
-            if key_pattern is None:
+            if compiled_pattern is None:
                if not key:
                    return True
                continue
-            if fnmatch(key, key_pattern):
+            # Performance: Use pre-compiled regex instead of fnmatch
            if compiled_pattern.match(key):
                return True
        return False
@@ -174,8 +191,16 @@ class BucketPolicyStore:
        self._policies: Dict[str, List[BucketPolicyStatement]] = {}
        self._load()
        self._last_mtime = self._current_mtime()
        # Performance: Avoid stat() on every request
        self._last_stat_check = 0.0
        self._stat_check_interval = 1.0  # Only check mtime every 1 second
    def maybe_reload(self) -> None:
        # Performance: Skip stat check if we checked recently
        now = time.time()
        if now - self._last_stat_check < self._stat_check_interval:
            return
        self._last_stat_check = now
        current = self._current_mtime()
        if current is None or current == self._last_mtime:
            return
--- a/app/compression.py
+++ b/app/compression.py
@@ -0,0 +1,94 @@
 from __future__ import annotations
 import gzip
 import io
 from typing import Callable, Iterable, List, Tuple
 COMPRESSIBLE_MIMES = frozenset([
    'application/json',
    'application/javascript',
    'application/xml',
    'text/html',
    'text/css',
    'text/plain',
    'text/xml',
    'text/javascript',
    'application/x-ndjson',
 ])
 MIN_SIZE_FOR_COMPRESSION = 500
 class GzipMiddleware:
    def __init__(self, app: Callable, compression_level: int = 6, min_size: int = MIN_SIZE_FOR_COMPRESSION):
        self.app = app
        self.compression_level = compression_level
        self.min_size = min_size
    def __call__(self, environ: dict, start_response: Callable) -> Iterable[bytes]:
        accept_encoding = environ.get('HTTP_ACCEPT_ENCODING', '')
        if 'gzip' not in accept_encoding.lower():
            return self.app(environ, start_response)
        response_started = False
        status_code = None
        response_headers: List[Tuple[str, str]] = []
        content_type = None
        content_length = None
        should_compress = False
        exc_info_holder = [None]
        def custom_start_response(status: str, headers: List[Tuple[str, str]], exc_info=None):
            nonlocal response_started, status_code, response_headers, content_type, content_length, should_compress
            response_started = True
            status_code = int(status.split(' ', 1)[0])
            response_headers = list(headers)
            exc_info_holder[0] = exc_info
            for name, value in headers:
                name_lower = name.lower()
                if name_lower == 'content-type':
                    content_type = value.split(';')[0].strip().lower()
                elif name_lower == 'content-length':
                    content_length = int(value)
                elif name_lower == 'content-encoding':
                    should_compress = False
                    return start_response(status, headers, exc_info)
            if content_type and content_type in COMPRESSIBLE_MIMES:
                if content_length is None or content_length >= self.min_size:
                    should_compress = True
            return None
        response_body = b''.join(self.app(environ, custom_start_response))
        if not response_started:
            return [response_body]
        if should_compress and len(response_body) >= self.min_size:
            buf = io.BytesIO()
            with gzip.GzipFile(fileobj=buf, mode='wb', compresslevel=self.compression_level) as gz:
                gz.write(response_body)
            compressed = buf.getvalue()
            if len(compressed) < len(response_body):
                response_body = compressed
                new_headers = []
                for name, value in response_headers:
                    if name.lower() not in ('content-length', 'content-encoding'):
                        new_headers.append((name, value))
                new_headers.append(('Content-Encoding', 'gzip'))
                new_headers.append(('Content-Length', str(len(response_body))))
                new_headers.append(('Vary', 'Accept-Encoding'))
                response_headers = new_headers
        status_str = f"{status_code} " + {
            200: "OK", 201: "Created", 204: "No Content", 206: "Partial Content",
            301: "Moved Permanently", 302: "Found", 304: "Not Modified",
            400: "Bad Request", 401: "Unauthorized", 403: "Forbidden", 404: "Not Found",
            405: "Method Not Allowed", 409: "Conflict", 500: "Internal Server Error",
        }.get(status_code, "Unknown")
        start_response(status_str, response_headers, exc_info_holder[0])
        return [response_body]
--- a/app/config.py
+++ b/app/config.py
@@ -1,4 +1,3 @@
 """Configuration helpers for the S3 clone application."""
 from __future__ import annotations
 import os
@@ -68,12 +67,15 @@ class AppConfig:
    stream_chunk_size: int
    multipart_min_part_size: int
    bucket_stats_cache_ttl: int
    object_cache_ttl: int
    encryption_enabled: bool
    encryption_master_key_path: Path
    kms_enabled: bool
    kms_keys_path: Path
    default_encryption_algorithm: str
    display_timezone: str
    lifecycle_enabled: bool
    lifecycle_interval_seconds: int
    @classmethod
    def from_env(cls, overrides: Optional[Dict[str, Any]] = None) -> "AppConfig":
@@ -83,7 +85,7 @@ class AppConfig:
            return overrides.get(name, os.getenv(name, default))
        storage_root = Path(_get("STORAGE_ROOT", PROJECT_ROOT / "data")).resolve()
-        max_upload_size = int(_get("MAX_UPLOAD_SIZE", 1024 * 1024 * 1024))  # 1 GiB default
+        max_upload_size = int(_get("MAX_UPLOAD_SIZE", 1024 * 1024 * 1024)) 
        ui_page_size = int(_get("UI_PAGE_SIZE", 100))
        auth_max_attempts = int(_get("AUTH_MAX_ATTEMPTS", 5))
        auth_lockout_minutes = int(_get("AUTH_LOCKOUT_MINUTES", 15))
@@ -91,6 +93,8 @@ class AppConfig:
        secret_ttl_seconds = int(_get("SECRET_TTL_SECONDS", 300))
        stream_chunk_size = int(_get("STREAM_CHUNK_SIZE", 64 * 1024))
        multipart_min_part_size = int(_get("MULTIPART_MIN_PART_SIZE", 5 * 1024 * 1024))
        lifecycle_enabled = _get("LIFECYCLE_ENABLED", "false").lower() in ("true", "1", "yes")
        lifecycle_interval_seconds = int(_get("LIFECYCLE_INTERVAL_SECONDS", 3600))
        default_secret = "dev-secret-key"
        secret_key = str(_get("SECRET_KEY", default_secret))
@@ -105,6 +109,10 @@ class AppConfig:
                try:
                    secret_file.parent.mkdir(parents=True, exist_ok=True)
                    secret_file.write_text(generated)
                    try:
                        os.chmod(secret_file, 0o600)
                    except OSError:
                        pass
                    secret_key = generated
                except OSError:
                    secret_key = generated
@@ -155,6 +163,7 @@ class AppConfig:
        cors_expose_headers = _csv(str(_get("CORS_EXPOSE_HEADERS", "*")), ["*"])
        session_lifetime_days = int(_get("SESSION_LIFETIME_DAYS", 30))
        bucket_stats_cache_ttl = int(_get("BUCKET_STATS_CACHE_TTL", 60))
        object_cache_ttl = int(_get("OBJECT_CACHE_TTL", 5))
        encryption_enabled = str(_get("ENCRYPTION_ENABLED", "0")).lower() in {"1", "true", "yes", "on"}
        encryption_keys_dir = storage_root / ".myfsio.sys" / "keys"
@@ -193,12 +202,15 @@ class AppConfig:
                   stream_chunk_size=stream_chunk_size,
                   multipart_min_part_size=multipart_min_part_size,
                   bucket_stats_cache_ttl=bucket_stats_cache_ttl,
                   object_cache_ttl=object_cache_ttl,
                   encryption_enabled=encryption_enabled,
                   encryption_master_key_path=encryption_master_key_path,
                   kms_enabled=kms_enabled,
                   kms_keys_path=kms_keys_path,
                   default_encryption_algorithm=default_encryption_algorithm,
-                   display_timezone=display_timezone)
+                   display_timezone=display_timezone,
                   lifecycle_enabled=lifecycle_enabled,
                   lifecycle_interval_seconds=lifecycle_interval_seconds)
    def validate_and_report(self) -> list[str]:
        """Validate configuration and return a list of warnings/issues.
@@ -306,6 +318,7 @@ class AppConfig:
            "STREAM_CHUNK_SIZE": self.stream_chunk_size,
            "MULTIPART_MIN_PART_SIZE": self.multipart_min_part_size,
            "BUCKET_STATS_CACHE_TTL": self.bucket_stats_cache_ttl,
            "OBJECT_CACHE_TTL": self.object_cache_ttl,
            "LOG_LEVEL": self.log_level,
            "LOG_TO_FILE": self.log_to_file,
            "LOG_FILE": str(self.log_path),
--- a/app/connections.py
+++ b/app/connections.py
@@ -1,4 +1,3 @@
 """Manage remote S3 connections."""
 from __future__ import annotations
 import json
--- a/app/encrypted_storage.py
+++ b/app/encrypted_storage.py
@@ -1,4 +1,3 @@
 """Encrypted storage layer that wraps ObjectStorage with encryption support."""
 from __future__ import annotations
 import io
@@ -90,6 +89,8 @@ class EncryptedObjectStorage:
        Returns:
            ObjectMeta with object information
        Performance: Uses streaming encryption for large files to reduce memory usage.
        """
        should_encrypt, algorithm, detected_kms_key = self._should_encrypt(
            bucket_name, server_side_encryption
@@ -99,20 +100,17 @@ class EncryptedObjectStorage:
            kms_key_id = detected_kms_key
        if should_encrypt:
            data = stream.read()
            try:
-                ciphertext, enc_metadata = self.encryption.encrypt_object(
+                # Performance: Use streaming encryption to avoid loading entire file into memory
-                    data, 
+                encrypted_stream, enc_metadata = self.encryption.encrypt_stream(
                    stream,
                    algorithm=algorithm,
                    kms_key_id=kms_key_id,
                    context={"bucket": bucket_name, "key": object_key},
                )
                combined_metadata = metadata.copy() if metadata else {}
                combined_metadata.update(enc_metadata.to_dict())
                encrypted_stream = io.BytesIO(ciphertext)
                result = self.storage.put_object(
                    bucket_name,
                    object_key,
@@ -138,23 +136,24 @@ class EncryptedObjectStorage:
        Returns:
            Tuple of (data, metadata)
        Performance: Uses streaming decryption to reduce memory usage.
        """
        path = self.storage.get_object_path(bucket_name, object_key)
        metadata = self.storage.get_object_metadata(bucket_name, object_key)
        with path.open("rb") as f:
            data = f.read()
        enc_metadata = EncryptionMetadata.from_dict(metadata)
        if enc_metadata:
            try:
-                data = self.encryption.decrypt_object(
+                # Performance: Use streaming decryption to avoid loading entire file into memory
-                    data,
+                with path.open("rb") as f:
-                    enc_metadata,
+                    decrypted_stream = self.encryption.decrypt_stream(f, enc_metadata)
-                    context={"bucket": bucket_name, "key": object_key},
+                    data = decrypted_stream.read()
                )
            except EncryptionError as exc:
                raise StorageError(f"Decryption failed: {exc}") from exc
        else:
            with path.open("rb") as f:
                data = f.read()
        clean_metadata = {
            k: v for k, v in metadata.items()
--- a/app/encryption.py
+++ b/app/encryption.py
@@ -157,10 +157,7 @@ class LocalKeyEncryption(EncryptionProvider):
    def decrypt(self, ciphertext: bytes, nonce: bytes, encrypted_data_key: bytes,
                key_id: str, context: Dict[str, str] | None = None) -> bytes:
        """Decrypt data using envelope encryption."""
        # Decrypt the data key
        data_key = self._decrypt_data_key(encrypted_data_key)
        # Decrypt the data
        aesgcm = AESGCM(data_key)
        try:
            return aesgcm.decrypt(nonce, ciphertext, None)
@@ -183,21 +180,26 @@ class StreamingEncryptor:
        self.chunk_size = chunk_size
    def _derive_chunk_nonce(self, base_nonce: bytes, chunk_index: int) -> bytes:
-        """Derive a unique nonce for each chunk."""
+        """Derive a unique nonce for each chunk.
-        # XOR the base nonce with the chunk index
+
-        nonce_int = int.from_bytes(base_nonce, "big")
+        Performance: Use direct byte manipulation instead of full int conversion.
-        derived = nonce_int ^ chunk_index
+        """
-        return derived.to_bytes(12, "big")
+        # Performance: Only modify last 4 bytes instead of full 12-byte conversion
        return base_nonce[:8] + (chunk_index ^ int.from_bytes(base_nonce[8:], "big")).to_bytes(4, "big")
    def encrypt_stream(self, stream: BinaryIO,
                       context: Dict[str, str] | None = None) -> tuple[BinaryIO, EncryptionMetadata]:
-        """Encrypt a stream and return encrypted stream + metadata."""
+        """Encrypt a stream and return encrypted stream + metadata.
        Performance: Writes chunks directly to output buffer instead of accumulating in list.
        """
        data_key, encrypted_data_key = self.provider.generate_data_key()
        base_nonce = secrets.token_bytes(12)
        aesgcm = AESGCM(data_key)
-        encrypted_chunks = []
+        # Performance: Write directly to BytesIO instead of accumulating chunks
        output = io.BytesIO()
        output.write(b"\x00\x00\x00\x00")  # Placeholder for chunk count
        chunk_index = 0
        while True:
@@ -208,12 +210,15 @@ class StreamingEncryptor:
            chunk_nonce = self._derive_chunk_nonce(base_nonce, chunk_index)
            encrypted_chunk = aesgcm.encrypt(chunk_nonce, chunk, None)
-            size_prefix = len(encrypted_chunk).to_bytes(self.HEADER_SIZE, "big")
+            # Write size prefix + encrypted chunk directly
-            encrypted_chunks.append(size_prefix + encrypted_chunk)
+            output.write(len(encrypted_chunk).to_bytes(self.HEADER_SIZE, "big"))
            output.write(encrypted_chunk)
            chunk_index += 1
-        header = chunk_index.to_bytes(4, "big")
+        # Write actual chunk count to header
-        encrypted_data = header + b"".join(encrypted_chunks)
+        output.seek(0)
        output.write(chunk_index.to_bytes(4, "big"))
        output.seek(0)
        metadata = EncryptionMetadata(
            algorithm="AES256",
@@ -222,10 +227,13 @@ class StreamingEncryptor:
            encrypted_data_key=encrypted_data_key,
        )
-        return io.BytesIO(encrypted_data), metadata
+        return output, metadata
    def decrypt_stream(self, stream: BinaryIO, metadata: EncryptionMetadata) -> BinaryIO:
-        """Decrypt a stream using the provided metadata."""
+        """Decrypt a stream using the provided metadata.
        Performance: Writes chunks directly to output buffer instead of accumulating in list.
        """
        if isinstance(self.provider, LocalKeyEncryption):
            data_key = self.provider._decrypt_data_key(metadata.encrypted_data_key)
        else:
@@ -239,7 +247,8 @@ class StreamingEncryptor:
            raise EncryptionError("Invalid encrypted stream: missing header")
        chunk_count = int.from_bytes(chunk_count_bytes, "big")
-        decrypted_chunks = []
+        # Performance: Write directly to BytesIO instead of accumulating chunks
        output = io.BytesIO()
        for chunk_index in range(chunk_count):
            size_bytes = stream.read(self.HEADER_SIZE)
            if len(size_bytes) < self.HEADER_SIZE:
@@ -253,11 +262,12 @@ class StreamingEncryptor:
            chunk_nonce = self._derive_chunk_nonce(base_nonce, chunk_index)
            try:
                decrypted_chunk = aesgcm.decrypt(chunk_nonce, encrypted_chunk, None)
-                decrypted_chunks.append(decrypted_chunk)
+                output.write(decrypted_chunk)  # Write directly instead of appending to list
            except Exception as exc:
                raise EncryptionError(f"Failed to decrypt chunk {chunk_index}: {exc}") from exc
-        return io.BytesIO(b"".join(decrypted_chunks))
+        output.seek(0)
        return output
 class EncryptionManager:
@@ -343,6 +353,106 @@ class EncryptionManager:
        return encryptor.decrypt_stream(stream, metadata)
 class SSECEncryption(EncryptionProvider):
    """SSE-C: Server-Side Encryption with Customer-Provided Keys.
    The client provides the encryption key with each request.
    Server encrypts/decrypts but never stores the key.
    Required headers for PUT:
    - x-amz-server-side-encryption-customer-algorithm: AES256
    - x-amz-server-side-encryption-customer-key: Base64-encoded 256-bit key
    - x-amz-server-side-encryption-customer-key-MD5: Base64-encoded MD5 of key
    """
    KEY_ID = "customer-provided"
    def __init__(self, customer_key: bytes):
        if len(customer_key) != 32:
            raise EncryptionError("Customer key must be exactly 256 bits (32 bytes)")
        self.customer_key = customer_key
    @classmethod
    def from_headers(cls, headers: Dict[str, str]) -> "SSECEncryption":
        algorithm = headers.get("x-amz-server-side-encryption-customer-algorithm", "")
        if algorithm.upper() != "AES256":
            raise EncryptionError(f"Unsupported SSE-C algorithm: {algorithm}. Only AES256 is supported.")
        key_b64 = headers.get("x-amz-server-side-encryption-customer-key", "")
        if not key_b64:
            raise EncryptionError("Missing x-amz-server-side-encryption-customer-key header")
        key_md5_b64 = headers.get("x-amz-server-side-encryption-customer-key-md5", "")
        try:
            customer_key = base64.b64decode(key_b64)
        except Exception as e:
            raise EncryptionError(f"Invalid base64 in customer key: {e}") from e
        if len(customer_key) != 32:
            raise EncryptionError(f"Customer key must be 256 bits, got {len(customer_key) * 8} bits")
        if key_md5_b64:
            import hashlib
            expected_md5 = base64.b64encode(hashlib.md5(customer_key).digest()).decode()
            if key_md5_b64 != expected_md5:
                raise EncryptionError("Customer key MD5 mismatch")
        return cls(customer_key)
    def encrypt(self, plaintext: bytes, context: Dict[str, str] | None = None) -> EncryptionResult:
        aesgcm = AESGCM(self.customer_key)
        nonce = secrets.token_bytes(12)
        ciphertext = aesgcm.encrypt(nonce, plaintext, None)
        return EncryptionResult(
            ciphertext=ciphertext,
            nonce=nonce,
            key_id=self.KEY_ID,
            encrypted_data_key=b"",
        )
    def decrypt(self, ciphertext: bytes, nonce: bytes, encrypted_data_key: bytes,
                key_id: str, context: Dict[str, str] | None = None) -> bytes:
        aesgcm = AESGCM(self.customer_key)
        try:
            return aesgcm.decrypt(nonce, ciphertext, None)
        except Exception as exc:
            raise EncryptionError(f"SSE-C decryption failed: {exc}") from exc
    def generate_data_key(self) -> tuple[bytes, bytes]:
        return self.customer_key, b""
@dataclass
 class SSECMetadata:
    algorithm: str = "AES256"
    nonce: bytes = b""
    key_md5: str = ""
    def to_dict(self) -> Dict[str, str]:
        return {
            "x-amz-server-side-encryption-customer-algorithm": self.algorithm,
            "x-amz-encryption-nonce": base64.b64encode(self.nonce).decode(),
            "x-amz-server-side-encryption-customer-key-MD5": self.key_md5,
        }
    @classmethod
    def from_dict(cls, data: Dict[str, str]) -> Optional["SSECMetadata"]:
        algorithm = data.get("x-amz-server-side-encryption-customer-algorithm")
        if not algorithm:
            return None
        try:
            nonce = base64.b64decode(data.get("x-amz-encryption-nonce", ""))
            return cls(
                algorithm=algorithm,
                nonce=nonce,
                key_md5=data.get("x-amz-server-side-encryption-customer-key-MD5", ""),
            )
        except Exception:
            return None
 class ClientEncryptionHelper:
    """Helpers for client-side encryption.
--- a/app/errors.py
+++ b/app/errors.py
@@ -1,4 +1,3 @@
 """Standardized error handling for API and UI responses."""
 from __future__ import annotations
 import logging
--- a/app/extensions.py
+++ b/app/extensions.py
@@ -1,4 +1,3 @@
 """Application-wide extension instances."""
 from flask import g
 from flask_limiter import Limiter
 from flask_limiter.util import get_remote_address
--- a/app/iam.py
+++ b/app/iam.py
@@ -1,14 +1,14 @@
 """Lightweight IAM-style user and policy management."""
 from __future__ import annotations
 import json
 import math
 import secrets
 import time
 from collections import deque
 from dataclasses import dataclass
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
-from typing import Any, Deque, Dict, Iterable, List, Optional, Sequence, Set
+from typing import Any, Deque, Dict, Iterable, List, Optional, Sequence, Set, Tuple
 class IamError(RuntimeError):
@@ -26,14 +26,12 @@ IAM_ACTIONS = {
 ALLOWED_ACTIONS = (S3_ACTIONS | IAM_ACTIONS) | {"iam:*"}
 ACTION_ALIASES = {
    # List actions
    "list": "list",
    "s3:listbucket": "list",
    "s3:listallmybuckets": "list",
    "s3:listbucketversions": "list",
    "s3:listmultipartuploads": "list",
    "s3:listparts": "list",
    # Read actions
    "read": "read",
    "s3:getobject": "read",
    "s3:getobjectversion": "read",
@@ -43,7 +41,6 @@ ACTION_ALIASES = {
    "s3:getbucketversioning": "read",
    "s3:headobject": "read",
    "s3:headbucket": "read",
    # Write actions
    "write": "write",
    "s3:putobject": "write",
    "s3:createbucket": "write",
@@ -54,23 +51,19 @@ ACTION_ALIASES = {
    "s3:completemultipartupload": "write",
    "s3:abortmultipartupload": "write",
    "s3:copyobject": "write",
    # Delete actions
    "delete": "delete",
    "s3:deleteobject": "delete",
    "s3:deleteobjectversion": "delete",
    "s3:deletebucket": "delete",
    "s3:deleteobjecttagging": "delete",
    # Share actions (ACL)
    "share": "share",
    "s3:putobjectacl": "share",
    "s3:putbucketacl": "share",
    "s3:getbucketacl": "share",
    # Policy actions
    "policy": "policy",
    "s3:putbucketpolicy": "policy",
    "s3:getbucketpolicy": "policy",
    "s3:deletebucketpolicy": "policy",
    # Replication actions
    "replication": "replication",
    "s3:getreplicationconfiguration": "replication",
    "s3:putreplicationconfiguration": "replication",
@@ -78,7 +71,6 @@ ACTION_ALIASES = {
    "s3:replicateobject": "replication",
    "s3:replicatetags": "replication",
    "s3:replicatedelete": "replication",
    # IAM actions
    "iam:listusers": "iam:list_users",
    "iam:createuser": "iam:create_user",
    "iam:deleteuser": "iam:delete_user",
@@ -115,13 +107,23 @@ class IamService:
        self._raw_config: Dict[str, Any] = {}
        self._failed_attempts: Dict[str, Deque[datetime]] = {}
        self._last_load_time = 0.0
        self._credential_cache: Dict[str, Tuple[str, Principal, float]] = {}
        self._cache_ttl = 60.0 
        self._last_stat_check = 0.0
        self._stat_check_interval = 1.0
        self._sessions: Dict[str, Dict[str, Any]] = {}
        self._load()
    def _maybe_reload(self) -> None:
        """Reload configuration if the file has changed on disk."""
        now = time.time()
        if now - self._last_stat_check < self._stat_check_interval:
            return
        self._last_stat_check = now
        try:
            if self.config_path.stat().st_mtime > self._last_load_time:
                self._load()
                self._credential_cache.clear() 
        except OSError:
            pass
@@ -180,18 +182,70 @@ class IamService:
        elapsed = (datetime.now(timezone.utc) - oldest).total_seconds()
        return int(max(0, self.auth_lockout_window.total_seconds() - elapsed))
-    def principal_for_key(self, access_key: str) -> Principal:
+    def create_session_token(self, access_key: str, duration_seconds: int = 3600) -> str:
        """Create a temporary session token for an access key."""
        self._maybe_reload()
        record = self._users.get(access_key)
        if not record:
            raise IamError("Unknown access key")
-        return self._build_principal(access_key, record)
+        self._cleanup_expired_sessions()
        token = secrets.token_urlsafe(32)
        expires_at = time.time() + duration_seconds
        self._sessions[token] = {
            "access_key": access_key,
            "expires_at": expires_at,
        }
        return token
    def validate_session_token(self, access_key: str, session_token: str) -> bool:
        """Validate a session token for an access key."""
        session = self._sessions.get(session_token)
        if not session:
            return False
        if session["access_key"] != access_key:
            return False
        if time.time() > session["expires_at"]:
            del self._sessions[session_token]
            return False
        return True
    def _cleanup_expired_sessions(self) -> None:
        """Remove expired session tokens."""
        now = time.time()
        expired = [token for token, data in self._sessions.items() if now > data["expires_at"]]
        for token in expired:
            del self._sessions[token]
    def principal_for_key(self, access_key: str) -> Principal:
        now = time.time()
        cached = self._credential_cache.get(access_key)
        if cached:
            secret, principal, cached_time = cached
            if now - cached_time < self._cache_ttl:
                return principal
        self._maybe_reload()
        record = self._users.get(access_key)
        if not record:
            raise IamError("Unknown access key")
        principal = self._build_principal(access_key, record)
        self._credential_cache[access_key] = (record["secret_key"], principal, now)
        return principal
    def secret_for_key(self, access_key: str) -> str:
        now = time.time()
        cached = self._credential_cache.get(access_key)
        if cached:
            secret, principal, cached_time = cached
            if now - cached_time < self._cache_ttl:
                return secret
        self._maybe_reload()
        record = self._users.get(access_key)
        if not record:
            raise IamError("Unknown access key")
        principal = self._build_principal(access_key, record)
        self._credential_cache[access_key] = (record["secret_key"], principal, now)
        return record["secret_key"]
    def authorize(self, principal: Principal, bucket_name: str | None, action: str) -> None:
@@ -442,11 +496,33 @@ class IamService:
        raise IamError("User not found")
    def get_secret_key(self, access_key: str) -> str | None:
        now = time.time()
        cached = self._credential_cache.get(access_key)
        if cached:
            secret, principal, cached_time = cached
            if now - cached_time < self._cache_ttl:
                return secret
        self._maybe_reload()
        record = self._users.get(access_key)
-        return record["secret_key"] if record else None
+        if record:
            principal = self._build_principal(access_key, record)
            self._credential_cache[access_key] = (record["secret_key"], principal, now)
            return record["secret_key"]
        return None
    def get_principal(self, access_key: str) -> Principal | None:
        now = time.time()
        cached = self._credential_cache.get(access_key)
        if cached:
            secret, principal, cached_time = cached
            if now - cached_time < self._cache_ttl:
                return principal
        self._maybe_reload()
        record = self._users.get(access_key)
-        return self._build_principal(access_key, record) if record else None
+        if record:
            principal = self._build_principal(access_key, record)
            self._credential_cache[access_key] = (record["secret_key"], principal, now)
            return principal
        return None
--- a/app/kms.py
+++ b/app/kms.py
@@ -1,4 +1,3 @@
 """Key Management Service (KMS) for encryption key management."""
 from __future__ import annotations
 import base64
@@ -212,6 +211,26 @@ class KMSManager:
        self._load_keys()
        return list(self._keys.values())
    def get_default_key_id(self) -> str:
        """Get the default KMS key ID, creating one if none exist."""
        self._load_keys()
        for key in self._keys.values():
            if key.enabled:
                return key.key_id
        default_key = self.create_key(description="Default KMS Key")
        return default_key.key_id
    def get_provider(self, key_id: str | None = None) -> "KMSEncryptionProvider":
        """Get a KMS encryption provider for the specified key."""
        if key_id is None:
            key_id = self.get_default_key_id()
        key = self.get_key(key_id)
        if not key:
            raise EncryptionError(f"Key not found: {key_id}")
        if not key.enabled:
            raise EncryptionError(f"Key is disabled: {key_id}")
        return KMSEncryptionProvider(self, key_id)
    def enable_key(self, key_id: str) -> None:
        """Enable a key."""
        self._load_keys()
--- a/app/kms_api.py
+++ b/app/kms_api.py
@@ -1,4 +1,3 @@
 """KMS and encryption API endpoints."""
 from __future__ import annotations
 import base64
--- a/app/lifecycle.py
+++ b/app/lifecycle.py
@@ -0,0 +1,335 @@
 from __future__ import annotations
 import json
 import logging
 import threading
 import time
 from dataclasses import dataclass, field
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 from .storage import ObjectStorage, StorageError
 logger = logging.getLogger(__name__)
@dataclass
 class LifecycleResult:
    bucket_name: str
    objects_deleted: int = 0
    versions_deleted: int = 0
    uploads_aborted: int = 0
    errors: List[str] = field(default_factory=list)
    execution_time_seconds: float = 0.0
@dataclass
 class LifecycleExecutionRecord:
    timestamp: float
    bucket_name: str
    objects_deleted: int
    versions_deleted: int
    uploads_aborted: int
    errors: List[str]
    execution_time_seconds: float
    def to_dict(self) -> dict:
        return {
            "timestamp": self.timestamp,
            "bucket_name": self.bucket_name,
            "objects_deleted": self.objects_deleted,
            "versions_deleted": self.versions_deleted,
            "uploads_aborted": self.uploads_aborted,
            "errors": self.errors,
            "execution_time_seconds": self.execution_time_seconds,
        }
    @classmethod
    def from_dict(cls, data: dict) -> "LifecycleExecutionRecord":
        return cls(
            timestamp=data["timestamp"],
            bucket_name=data["bucket_name"],
            objects_deleted=data["objects_deleted"],
            versions_deleted=data["versions_deleted"],
            uploads_aborted=data["uploads_aborted"],
            errors=data.get("errors", []),
            execution_time_seconds=data["execution_time_seconds"],
        )
    @classmethod
    def from_result(cls, result: LifecycleResult) -> "LifecycleExecutionRecord":
        return cls(
            timestamp=time.time(),
            bucket_name=result.bucket_name,
            objects_deleted=result.objects_deleted,
            versions_deleted=result.versions_deleted,
            uploads_aborted=result.uploads_aborted,
            errors=result.errors.copy(),
            execution_time_seconds=result.execution_time_seconds,
        )
 class LifecycleHistoryStore:
    MAX_HISTORY_PER_BUCKET = 50
    def __init__(self, storage_root: Path) -> None:
        self.storage_root = storage_root
        self._lock = threading.Lock()
    def _get_history_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / "lifecycle_history.json"
    def load_history(self, bucket_name: str) -> List[LifecycleExecutionRecord]:
        path = self._get_history_path(bucket_name)
        if not path.exists():
            return []
        try:
            with open(path, "r") as f:
                data = json.load(f)
                return [LifecycleExecutionRecord.from_dict(d) for d in data.get("executions", [])]
        except (OSError, ValueError, KeyError) as e:
            logger.error(f"Failed to load lifecycle history for {bucket_name}: {e}")
            return []
    def save_history(self, bucket_name: str, records: List[LifecycleExecutionRecord]) -> None:
        path = self._get_history_path(bucket_name)
        path.parent.mkdir(parents=True, exist_ok=True)
        data = {"executions": [r.to_dict() for r in records[:self.MAX_HISTORY_PER_BUCKET]]}
        try:
            with open(path, "w") as f:
                json.dump(data, f, indent=2)
        except OSError as e:
            logger.error(f"Failed to save lifecycle history for {bucket_name}: {e}")
    def add_record(self, bucket_name: str, record: LifecycleExecutionRecord) -> None:
        with self._lock:
            records = self.load_history(bucket_name)
            records.insert(0, record)
            self.save_history(bucket_name, records)
    def get_history(self, bucket_name: str, limit: int = 50, offset: int = 0) -> List[LifecycleExecutionRecord]:
        records = self.load_history(bucket_name)
        return records[offset:offset + limit]
 class LifecycleManager:
    def __init__(self, storage: ObjectStorage, interval_seconds: int = 3600, storage_root: Optional[Path] = None):
        self.storage = storage
        self.interval_seconds = interval_seconds
        self.storage_root = storage_root
        self._timer: Optional[threading.Timer] = None
        self._shutdown = False
        self._lock = threading.Lock()
        self.history_store = LifecycleHistoryStore(storage_root) if storage_root else None
    def start(self) -> None:
        if self._timer is not None:
            return
        self._shutdown = False
        self._schedule_next()
        logger.info(f"Lifecycle manager started with interval {self.interval_seconds}s")
    def stop(self) -> None:
        self._shutdown = True
        if self._timer:
            self._timer.cancel()
            self._timer = None
        logger.info("Lifecycle manager stopped")
    def _schedule_next(self) -> None:
        if self._shutdown:
            return
        self._timer = threading.Timer(self.interval_seconds, self._run_enforcement)
        self._timer.daemon = True
        self._timer.start()
    def _run_enforcement(self) -> None:
        if self._shutdown:
            return
        try:
            self.enforce_all_buckets()
        except Exception as e:
            logger.error(f"Lifecycle enforcement failed: {e}")
        finally:
            self._schedule_next()
    def enforce_all_buckets(self) -> Dict[str, LifecycleResult]:
        results = {}
        try:
            buckets = self.storage.list_buckets()
            for bucket in buckets:
                result = self.enforce_rules(bucket.name)
                if result.objects_deleted > 0 or result.versions_deleted > 0 or result.uploads_aborted > 0:
                    results[bucket.name] = result
        except StorageError as e:
            logger.error(f"Failed to list buckets for lifecycle: {e}")
        return results
    def enforce_rules(self, bucket_name: str) -> LifecycleResult:
        start_time = time.time()
        result = LifecycleResult(bucket_name=bucket_name)
        try:
            lifecycle = self.storage.get_bucket_lifecycle(bucket_name)
            if not lifecycle:
                return result
            for rule in lifecycle:
                if rule.get("Status") != "Enabled":
                    continue
                rule_id = rule.get("ID", "unknown")
                prefix = rule.get("Prefix", rule.get("Filter", {}).get("Prefix", ""))
                self._enforce_expiration(bucket_name, rule, prefix, result)
                self._enforce_noncurrent_expiration(bucket_name, rule, prefix, result)
                self._enforce_abort_multipart(bucket_name, rule, result)
        except StorageError as e:
            result.errors.append(str(e))
            logger.error(f"Lifecycle enforcement error for {bucket_name}: {e}")
        result.execution_time_seconds = time.time() - start_time
        if result.objects_deleted > 0 or result.versions_deleted > 0 or result.uploads_aborted > 0 or result.errors:
            logger.info(
                f"Lifecycle enforcement for {bucket_name}: "
                f"deleted={result.objects_deleted}, versions={result.versions_deleted}, "
                f"aborted={result.uploads_aborted}, time={result.execution_time_seconds:.2f}s"
            )
            if self.history_store:
                record = LifecycleExecutionRecord.from_result(result)
                self.history_store.add_record(bucket_name, record)
        return result
    def _enforce_expiration(
        self, bucket_name: str, rule: Dict[str, Any], prefix: str, result: LifecycleResult
    ) -> None:
        expiration = rule.get("Expiration", {})
        if not expiration:
            return
        days = expiration.get("Days")
        date_str = expiration.get("Date")
        if days:
            cutoff = datetime.now(timezone.utc) - timedelta(days=days)
        elif date_str:
            try:
                cutoff = datetime.fromisoformat(date_str.replace("Z", "+00:00"))
            except ValueError:
                return
        else:
            return
        try:
            objects = self.storage.list_objects_all(bucket_name)
            for obj in objects:
                if prefix and not obj.key.startswith(prefix):
                    continue
                if obj.last_modified < cutoff:
                    try:
                        self.storage.delete_object(bucket_name, obj.key)
                        result.objects_deleted += 1
                    except StorageError as e:
                        result.errors.append(f"Failed to delete {obj.key}: {e}")
        except StorageError as e:
            result.errors.append(f"Failed to list objects: {e}")
    def _enforce_noncurrent_expiration(
        self, bucket_name: str, rule: Dict[str, Any], prefix: str, result: LifecycleResult
    ) -> None:
        noncurrent = rule.get("NoncurrentVersionExpiration", {})
        noncurrent_days = noncurrent.get("NoncurrentDays")
        if not noncurrent_days:
            return
        cutoff = datetime.now(timezone.utc) - timedelta(days=noncurrent_days)
        try:
            objects = self.storage.list_objects_all(bucket_name)
            for obj in objects:
                if prefix and not obj.key.startswith(prefix):
                    continue
                try:
                    versions = self.storage.list_object_versions(bucket_name, obj.key)
                    for version in versions:
                        archived_at_str = version.get("archived_at", "")
                        if not archived_at_str:
                            continue
                        try:
                            archived_at = datetime.fromisoformat(archived_at_str.replace("Z", "+00:00"))
                            if archived_at < cutoff:
                                version_id = version.get("version_id")
                                if version_id:
                                    self.storage.delete_object_version(bucket_name, obj.key, version_id)
                                    result.versions_deleted += 1
                        except (ValueError, StorageError) as e:
                            result.errors.append(f"Failed to process version: {e}")
                except StorageError:
                    pass
        except StorageError as e:
            result.errors.append(f"Failed to list objects: {e}")
        try:
            orphaned = self.storage.list_orphaned_objects(bucket_name)
            for item in orphaned:
                obj_key = item.get("key", "")
                if prefix and not obj_key.startswith(prefix):
                    continue
                try:
                    versions = self.storage.list_object_versions(bucket_name, obj_key)
                    for version in versions:
                        archived_at_str = version.get("archived_at", "")
                        if not archived_at_str:
                            continue
                        try:
                            archived_at = datetime.fromisoformat(archived_at_str.replace("Z", "+00:00"))
                            if archived_at < cutoff:
                                version_id = version.get("version_id")
                                if version_id:
                                    self.storage.delete_object_version(bucket_name, obj_key, version_id)
                                    result.versions_deleted += 1
                        except (ValueError, StorageError) as e:
                            result.errors.append(f"Failed to process orphaned version: {e}")
                except StorageError:
                    pass
        except StorageError as e:
            result.errors.append(f"Failed to list orphaned objects: {e}")
    def _enforce_abort_multipart(
        self, bucket_name: str, rule: Dict[str, Any], result: LifecycleResult
    ) -> None:
        abort_config = rule.get("AbortIncompleteMultipartUpload", {})
        days_after = abort_config.get("DaysAfterInitiation")
        if not days_after:
            return
        cutoff = datetime.now(timezone.utc) - timedelta(days=days_after)
        try:
            uploads = self.storage.list_multipart_uploads(bucket_name)
            for upload in uploads:
                created_at_str = upload.get("created_at", "")
                if not created_at_str:
                    continue
                try:
                    created_at = datetime.fromisoformat(created_at_str.replace("Z", "+00:00"))
                    if created_at < cutoff:
                        upload_id = upload.get("upload_id")
                        if upload_id:
                            self.storage.abort_multipart_upload(bucket_name, upload_id)
                            result.uploads_aborted += 1
                except (ValueError, StorageError) as e:
                    result.errors.append(f"Failed to abort upload: {e}")
        except StorageError as e:
            result.errors.append(f"Failed to list multipart uploads: {e}")
    def run_now(self, bucket_name: Optional[str] = None) -> Dict[str, LifecycleResult]:
        if bucket_name:
            return {bucket_name: self.enforce_rules(bucket_name)}
        return self.enforce_all_buckets()
    def get_execution_history(self, bucket_name: str, limit: int = 50, offset: int = 0) -> List[LifecycleExecutionRecord]:
        if not self.history_store:
            return []
        return self.history_store.get_history(bucket_name, limit, offset)
--- a/app/notifications.py
+++ b/app/notifications.py
@@ -0,0 +1,334 @@
 from __future__ import annotations
 import json
 import logging
 import queue
 import threading
 import time
 import uuid
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 from urllib.parse import urlparse
 import requests
 logger = logging.getLogger(__name__)
@dataclass
 class NotificationEvent:
    event_name: str
    bucket_name: str
    object_key: str
    object_size: int = 0
    etag: str = ""
    version_id: Optional[str] = None
    timestamp: datetime = field(default_factory=lambda: datetime.now(timezone.utc))
    request_id: str = field(default_factory=lambda: uuid.uuid4().hex)
    source_ip: str = ""
    user_identity: str = ""
    def to_s3_event(self) -> Dict[str, Any]:
        return {
            "Records": [
                {
                    "eventVersion": "2.1",
                    "eventSource": "myfsio:s3",
                    "awsRegion": "local",
                    "eventTime": self.timestamp.strftime("%Y-%m-%dT%H:%M:%S.000Z"),
                    "eventName": self.event_name,
                    "userIdentity": {
                        "principalId": self.user_identity or "ANONYMOUS",
                    },
                    "requestParameters": {
                        "sourceIPAddress": self.source_ip or "127.0.0.1",
                    },
                    "responseElements": {
                        "x-amz-request-id": self.request_id,
                        "x-amz-id-2": self.request_id,
                    },
                    "s3": {
                        "s3SchemaVersion": "1.0",
                        "configurationId": "notification",
                        "bucket": {
                            "name": self.bucket_name,
                            "ownerIdentity": {"principalId": "local"},
                            "arn": f"arn:aws:s3:::{self.bucket_name}",
                        },
                        "object": {
                            "key": self.object_key,
                            "size": self.object_size,
                            "eTag": self.etag,
                            "versionId": self.version_id or "null",
                            "sequencer": f"{int(time.time() * 1000):016X}",
                        },
                    },
                }
            ]
        }
@dataclass
 class WebhookDestination:
    url: str
    headers: Dict[str, str] = field(default_factory=dict)
    timeout_seconds: int = 30
    retry_count: int = 3
    retry_delay_seconds: int = 1
    def to_dict(self) -> Dict[str, Any]:
        return {
            "url": self.url,
            "headers": self.headers,
            "timeout_seconds": self.timeout_seconds,
            "retry_count": self.retry_count,
            "retry_delay_seconds": self.retry_delay_seconds,
        }
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> "WebhookDestination":
        return cls(
            url=data.get("url", ""),
            headers=data.get("headers", {}),
            timeout_seconds=data.get("timeout_seconds", 30),
            retry_count=data.get("retry_count", 3),
            retry_delay_seconds=data.get("retry_delay_seconds", 1),
        )
@dataclass
 class NotificationConfiguration:
    id: str
    events: List[str]
    destination: WebhookDestination
    prefix_filter: str = ""
    suffix_filter: str = ""
    def matches_event(self, event_name: str, object_key: str) -> bool:
        event_match = False
        for pattern in self.events:
            if pattern.endswith("*"):
                base = pattern[:-1]
                if event_name.startswith(base):
                    event_match = True
                    break
            elif pattern == event_name:
                event_match = True
                break
        if not event_match:
            return False
        if self.prefix_filter and not object_key.startswith(self.prefix_filter):
            return False
        if self.suffix_filter and not object_key.endswith(self.suffix_filter):
            return False
        return True
    def to_dict(self) -> Dict[str, Any]:
        return {
            "Id": self.id,
            "Events": self.events,
            "Destination": self.destination.to_dict(),
            "Filter": {
                "Key": {
                    "FilterRules": [
                        {"Name": "prefix", "Value": self.prefix_filter},
                        {"Name": "suffix", "Value": self.suffix_filter},
                    ]
                }
            },
        }
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> "NotificationConfiguration":
        prefix = ""
        suffix = ""
        filter_data = data.get("Filter", {})
        key_filter = filter_data.get("Key", {})
        for rule in key_filter.get("FilterRules", []):
            if rule.get("Name") == "prefix":
                prefix = rule.get("Value", "")
            elif rule.get("Name") == "suffix":
                suffix = rule.get("Value", "")
        return cls(
            id=data.get("Id", uuid.uuid4().hex),
            events=data.get("Events", []),
            destination=WebhookDestination.from_dict(data.get("Destination", {})),
            prefix_filter=prefix,
            suffix_filter=suffix,
        )
 class NotificationService:
    def __init__(self, storage_root: Path, worker_count: int = 2):
        self.storage_root = storage_root
        self._configs: Dict[str, List[NotificationConfiguration]] = {}
        self._queue: queue.Queue[tuple[NotificationEvent, WebhookDestination]] = queue.Queue()
        self._workers: List[threading.Thread] = []
        self._shutdown = threading.Event()
        self._stats = {
            "events_queued": 0,
            "events_sent": 0,
            "events_failed": 0,
        }
        for i in range(worker_count):
            worker = threading.Thread(target=self._worker_loop, name=f"notification-worker-{i}", daemon=True)
            worker.start()
            self._workers.append(worker)
    def _config_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / "notifications.json"
    def get_bucket_notifications(self, bucket_name: str) -> List[NotificationConfiguration]:
        if bucket_name in self._configs:
            return self._configs[bucket_name]
        config_path = self._config_path(bucket_name)
        if not config_path.exists():
            return []
        try:
            data = json.loads(config_path.read_text(encoding="utf-8"))
            configs = [NotificationConfiguration.from_dict(c) for c in data.get("configurations", [])]
            self._configs[bucket_name] = configs
            return configs
        except (json.JSONDecodeError, OSError) as e:
            logger.warning(f"Failed to load notification config for {bucket_name}: {e}")
            return []
    def set_bucket_notifications(
        self, bucket_name: str, configurations: List[NotificationConfiguration]
    ) -> None:
        config_path = self._config_path(bucket_name)
        config_path.parent.mkdir(parents=True, exist_ok=True)
        data = {"configurations": [c.to_dict() for c in configurations]}
        config_path.write_text(json.dumps(data, indent=2), encoding="utf-8")
        self._configs[bucket_name] = configurations
    def delete_bucket_notifications(self, bucket_name: str) -> None:
        config_path = self._config_path(bucket_name)
        try:
            if config_path.exists():
                config_path.unlink()
        except OSError:
            pass
        self._configs.pop(bucket_name, None)
    def emit_event(self, event: NotificationEvent) -> None:
        configurations = self.get_bucket_notifications(event.bucket_name)
        if not configurations:
            return
        for config in configurations:
            if config.matches_event(event.event_name, event.object_key):
                self._queue.put((event, config.destination))
                self._stats["events_queued"] += 1
                logger.debug(
                    f"Queued notification for {event.event_name} on {event.bucket_name}/{event.object_key}"
                )
    def emit_object_created(
        self,
        bucket_name: str,
        object_key: str,
        *,
        size: int = 0,
        etag: str = "",
        version_id: Optional[str] = None,
        request_id: str = "",
        source_ip: str = "",
        user_identity: str = "",
        operation: str = "Put",
    ) -> None:
        event = NotificationEvent(
            event_name=f"s3:ObjectCreated:{operation}",
            bucket_name=bucket_name,
            object_key=object_key,
            object_size=size,
            etag=etag,
            version_id=version_id,
            request_id=request_id or uuid.uuid4().hex,
            source_ip=source_ip,
            user_identity=user_identity,
        )
        self.emit_event(event)
    def emit_object_removed(
        self,
        bucket_name: str,
        object_key: str,
        *,
        version_id: Optional[str] = None,
        request_id: str = "",
        source_ip: str = "",
        user_identity: str = "",
        operation: str = "Delete",
    ) -> None:
        event = NotificationEvent(
            event_name=f"s3:ObjectRemoved:{operation}",
            bucket_name=bucket_name,
            object_key=object_key,
            version_id=version_id,
            request_id=request_id or uuid.uuid4().hex,
            source_ip=source_ip,
            user_identity=user_identity,
        )
        self.emit_event(event)
    def _worker_loop(self) -> None:
        while not self._shutdown.is_set():
            try:
                event, destination = self._queue.get(timeout=1.0)
            except queue.Empty:
                continue
            try:
                self._send_notification(event, destination)
                self._stats["events_sent"] += 1
            except Exception as e:
                self._stats["events_failed"] += 1
                logger.error(f"Failed to send notification: {e}")
            finally:
                self._queue.task_done()
    def _send_notification(self, event: NotificationEvent, destination: WebhookDestination) -> None:
        payload = event.to_s3_event()
        headers = {"Content-Type": "application/json", **destination.headers}
        last_error = None
        for attempt in range(destination.retry_count):
            try:
                response = requests.post(
                    destination.url,
                    json=payload,
                    headers=headers,
                    timeout=destination.timeout_seconds,
                )
                if response.status_code < 400:
                    logger.info(
                        f"Notification sent: {event.event_name} -> {destination.url} (status={response.status_code})"
                    )
                    return
                last_error = f"HTTP {response.status_code}: {response.text[:200]}"
            except requests.RequestException as e:
                last_error = str(e)
            if attempt < destination.retry_count - 1:
                time.sleep(destination.retry_delay_seconds * (attempt + 1))
        raise RuntimeError(f"Failed after {destination.retry_count} attempts: {last_error}")
    def get_stats(self) -> Dict[str, int]:
        return dict(self._stats)
    def shutdown(self) -> None:
        self._shutdown.set()
        for worker in self._workers:
            worker.join(timeout=5.0)
--- a/app/object_lock.py
+++ b/app/object_lock.py
@@ -0,0 +1,234 @@
 from __future__ import annotations
 import json
 from dataclasses import dataclass
 from datetime import datetime, timezone
 from enum import Enum
 from pathlib import Path
 from typing import Any, Dict, Optional
 class RetentionMode(Enum):
    GOVERNANCE = "GOVERNANCE"
    COMPLIANCE = "COMPLIANCE"
 class ObjectLockError(Exception):
    pass
@dataclass
 class ObjectLockRetention:
    mode: RetentionMode
    retain_until_date: datetime
    def to_dict(self) -> Dict[str, str]:
        return {
            "Mode": self.mode.value,
            "RetainUntilDate": self.retain_until_date.isoformat(),
        }
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> Optional["ObjectLockRetention"]:
        if not data:
            return None
        mode_str = data.get("Mode")
        date_str = data.get("RetainUntilDate")
        if not mode_str or not date_str:
            return None
        try:
            mode = RetentionMode(mode_str)
            retain_until = datetime.fromisoformat(date_str.replace("Z", "+00:00"))
            return cls(mode=mode, retain_until_date=retain_until)
        except (ValueError, KeyError):
            return None
    def is_expired(self) -> bool:
        return datetime.now(timezone.utc) > self.retain_until_date
@dataclass
 class ObjectLockConfig:
    enabled: bool = False
    default_retention: Optional[ObjectLockRetention] = None
    def to_dict(self) -> Dict[str, Any]:
        result: Dict[str, Any] = {"ObjectLockEnabled": "Enabled" if self.enabled else "Disabled"}
        if self.default_retention:
            result["Rule"] = {
                "DefaultRetention": {
                    "Mode": self.default_retention.mode.value,
                    "Days": None,
                    "Years": None,
                }
            }
        return result
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> "ObjectLockConfig":
        enabled = data.get("ObjectLockEnabled") == "Enabled"
        default_retention = None
        rule = data.get("Rule")
        if rule and "DefaultRetention" in rule:
            dr = rule["DefaultRetention"]
            mode_str = dr.get("Mode", "GOVERNANCE")
            days = dr.get("Days")
            years = dr.get("Years")
            if days or years:
                from datetime import timedelta
                now = datetime.now(timezone.utc)
                if years:
                    delta = timedelta(days=int(years) * 365)
                else:
                    delta = timedelta(days=int(days))
                default_retention = ObjectLockRetention(
                    mode=RetentionMode(mode_str),
                    retain_until_date=now + delta,
                )
        return cls(enabled=enabled, default_retention=default_retention)
 class ObjectLockService:
    def __init__(self, storage_root: Path):
        self.storage_root = storage_root
        self._config_cache: Dict[str, ObjectLockConfig] = {}
    def _bucket_lock_config_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / "object_lock.json"
    def _object_lock_meta_path(self, bucket_name: str, object_key: str) -> Path:
        safe_key = object_key.replace("/", "_").replace("\\", "_")
        return (
            self.storage_root / ".myfsio.sys" / "buckets" / bucket_name /
            "locks" / f"{safe_key}.lock.json"
        )
    def get_bucket_lock_config(self, bucket_name: str) -> ObjectLockConfig:
        if bucket_name in self._config_cache:
            return self._config_cache[bucket_name]
        config_path = self._bucket_lock_config_path(bucket_name)
        if not config_path.exists():
            return ObjectLockConfig(enabled=False)
        try:
            data = json.loads(config_path.read_text(encoding="utf-8"))
            config = ObjectLockConfig.from_dict(data)
            self._config_cache[bucket_name] = config
            return config
        except (json.JSONDecodeError, OSError):
            return ObjectLockConfig(enabled=False)
    def set_bucket_lock_config(self, bucket_name: str, config: ObjectLockConfig) -> None:
        config_path = self._bucket_lock_config_path(bucket_name)
        config_path.parent.mkdir(parents=True, exist_ok=True)
        config_path.write_text(json.dumps(config.to_dict()), encoding="utf-8")
        self._config_cache[bucket_name] = config
    def enable_bucket_lock(self, bucket_name: str) -> None:
        config = self.get_bucket_lock_config(bucket_name)
        config.enabled = True
        self.set_bucket_lock_config(bucket_name, config)
    def is_bucket_lock_enabled(self, bucket_name: str) -> bool:
        return self.get_bucket_lock_config(bucket_name).enabled
    def get_object_retention(self, bucket_name: str, object_key: str) -> Optional[ObjectLockRetention]:
        meta_path = self._object_lock_meta_path(bucket_name, object_key)
        if not meta_path.exists():
            return None
        try:
            data = json.loads(meta_path.read_text(encoding="utf-8"))
            return ObjectLockRetention.from_dict(data.get("retention", {}))
        except (json.JSONDecodeError, OSError):
            return None
    def set_object_retention(
        self,
        bucket_name: str,
        object_key: str,
        retention: ObjectLockRetention,
        bypass_governance: bool = False,
    ) -> None:
        existing = self.get_object_retention(bucket_name, object_key)
        if existing and not existing.is_expired():
            if existing.mode == RetentionMode.COMPLIANCE:
                raise ObjectLockError(
                    "Cannot modify retention on object with COMPLIANCE mode until retention expires"
                )
            if existing.mode == RetentionMode.GOVERNANCE and not bypass_governance:
                raise ObjectLockError(
                    "Cannot modify GOVERNANCE retention without bypass-governance permission"
                )
        meta_path = self._object_lock_meta_path(bucket_name, object_key)
        meta_path.parent.mkdir(parents=True, exist_ok=True)
        existing_data: Dict[str, Any] = {}
        if meta_path.exists():
            try:
                existing_data = json.loads(meta_path.read_text(encoding="utf-8"))
            except (json.JSONDecodeError, OSError):
                pass
        existing_data["retention"] = retention.to_dict()
        meta_path.write_text(json.dumps(existing_data), encoding="utf-8")
    def get_legal_hold(self, bucket_name: str, object_key: str) -> bool:
        meta_path = self._object_lock_meta_path(bucket_name, object_key)
        if not meta_path.exists():
            return False
        try:
            data = json.loads(meta_path.read_text(encoding="utf-8"))
            return data.get("legal_hold", False)
        except (json.JSONDecodeError, OSError):
            return False
    def set_legal_hold(self, bucket_name: str, object_key: str, enabled: bool) -> None:
        meta_path = self._object_lock_meta_path(bucket_name, object_key)
        meta_path.parent.mkdir(parents=True, exist_ok=True)
        existing_data: Dict[str, Any] = {}
        if meta_path.exists():
            try:
                existing_data = json.loads(meta_path.read_text(encoding="utf-8"))
            except (json.JSONDecodeError, OSError):
                pass
        existing_data["legal_hold"] = enabled
        meta_path.write_text(json.dumps(existing_data), encoding="utf-8")
    def can_delete_object(
        self,
        bucket_name: str,
        object_key: str,
        bypass_governance: bool = False,
    ) -> tuple[bool, str]:
        if self.get_legal_hold(bucket_name, object_key):
            return False, "Object is under legal hold"
        retention = self.get_object_retention(bucket_name, object_key)
        if retention and not retention.is_expired():
            if retention.mode == RetentionMode.COMPLIANCE:
                return False, f"Object is locked in COMPLIANCE mode until {retention.retain_until_date.isoformat()}"
            if retention.mode == RetentionMode.GOVERNANCE:
                if not bypass_governance:
                    return False, f"Object is locked in GOVERNANCE mode until {retention.retain_until_date.isoformat()}"
        return True, ""
    def can_overwrite_object(
        self,
        bucket_name: str,
        object_key: str,
        bypass_governance: bool = False,
    ) -> tuple[bool, str]:
        return self.can_delete_object(bucket_name, object_key, bypass_governance)
    def delete_object_lock_metadata(self, bucket_name: str, object_key: str) -> None:
        meta_path = self._object_lock_meta_path(bucket_name, object_key)
        try:
            if meta_path.exists():
                meta_path.unlink()
        except OSError:
            pass
--- a/app/replication.py
+++ b/app/replication.py
@@ -1,4 +1,3 @@
 """Background replication worker."""
 from __future__ import annotations
 import json
@@ -9,7 +8,7 @@ import time
 from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass, field
 from pathlib import Path
-from typing import Dict, Optional
+from typing import Any, Dict, List, Optional
 import boto3
 from botocore.config import Config
@@ -24,11 +23,38 @@ logger = logging.getLogger(__name__)
 REPLICATION_USER_AGENT = "S3ReplicationAgent/1.0"
 REPLICATION_CONNECT_TIMEOUT = 5
 REPLICATION_READ_TIMEOUT = 30
 STREAMING_THRESHOLD_BYTES = 10 * 1024 * 1024 
 REPLICATION_MODE_NEW_ONLY = "new_only"
 REPLICATION_MODE_ALL = "all"
 def _create_s3_client(connection: RemoteConnection, *, health_check: bool = False) -> Any:
    """Create a boto3 S3 client for the given connection.
    Args:
        connection: Remote S3 connection configuration
        health_check: If True, use minimal retries for quick health checks
    """
    config = Config(
        user_agent_extra=REPLICATION_USER_AGENT,
        connect_timeout=REPLICATION_CONNECT_TIMEOUT,
        read_timeout=REPLICATION_READ_TIMEOUT,
        retries={'max_attempts': 1 if health_check else 2},
        signature_version='s3v4',
        s3={'addressing_style': 'path'},
        request_checksum_calculation='when_required',
        response_checksum_validation='when_required',
    )
    return boto3.client(
        "s3",
        endpoint_url=connection.endpoint_url,
        aws_access_key_id=connection.access_key,
        aws_secret_access_key=connection.secret_key,
        region_name=connection.region or 'us-east-1',
        config=config,
    )
@dataclass
 class ReplicationStats:
    """Statistics for replication operations - computed dynamically."""
@@ -61,6 +87,40 @@ class ReplicationStats:
        )
@dataclass
 class ReplicationFailure:
    object_key: str
    error_message: str
    timestamp: float
    failure_count: int
    bucket_name: str
    action: str
    last_error_code: Optional[str] = None
    def to_dict(self) -> dict:
        return {
            "object_key": self.object_key,
            "error_message": self.error_message,
            "timestamp": self.timestamp,
            "failure_count": self.failure_count,
            "bucket_name": self.bucket_name,
            "action": self.action,
            "last_error_code": self.last_error_code,
        }
    @classmethod
    def from_dict(cls, data: dict) -> "ReplicationFailure":
        return cls(
            object_key=data["object_key"],
            error_message=data["error_message"],
            timestamp=data["timestamp"],
            failure_count=data["failure_count"],
            bucket_name=data["bucket_name"],
            action=data["action"],
            last_error_code=data.get("last_error_code"),
        )
@dataclass
 class ReplicationRule:
    bucket_name: str
@@ -94,16 +154,98 @@ class ReplicationRule:
        return rule
 class ReplicationFailureStore:
    MAX_FAILURES_PER_BUCKET = 50
    def __init__(self, storage_root: Path) -> None:
        self.storage_root = storage_root
        self._lock = threading.Lock()
    def _get_failures_path(self, bucket_name: str) -> Path:
        return self.storage_root / ".myfsio.sys" / "buckets" / bucket_name / "replication_failures.json"
    def load_failures(self, bucket_name: str) -> List[ReplicationFailure]:
        path = self._get_failures_path(bucket_name)
        if not path.exists():
            return []
        try:
            with open(path, "r") as f:
                data = json.load(f)
                return [ReplicationFailure.from_dict(d) for d in data.get("failures", [])]
        except (OSError, ValueError, KeyError) as e:
            logger.error(f"Failed to load replication failures for {bucket_name}: {e}")
            return []
    def save_failures(self, bucket_name: str, failures: List[ReplicationFailure]) -> None:
        path = self._get_failures_path(bucket_name)
        path.parent.mkdir(parents=True, exist_ok=True)
        data = {"failures": [f.to_dict() for f in failures[:self.MAX_FAILURES_PER_BUCKET]]}
        try:
            with open(path, "w") as f:
                json.dump(data, f, indent=2)
        except OSError as e:
            logger.error(f"Failed to save replication failures for {bucket_name}: {e}")
    def add_failure(self, bucket_name: str, failure: ReplicationFailure) -> None:
        with self._lock:
            failures = self.load_failures(bucket_name)
            existing = next((f for f in failures if f.object_key == failure.object_key), None)
            if existing:
                existing.failure_count += 1
                existing.timestamp = failure.timestamp
                existing.error_message = failure.error_message
                existing.last_error_code = failure.last_error_code
            else:
                failures.insert(0, failure)
            self.save_failures(bucket_name, failures)
    def remove_failure(self, bucket_name: str, object_key: str) -> bool:
        with self._lock:
            failures = self.load_failures(bucket_name)
            original_len = len(failures)
            failures = [f for f in failures if f.object_key != object_key]
            if len(failures) < original_len:
                self.save_failures(bucket_name, failures)
                return True
            return False
    def clear_failures(self, bucket_name: str) -> None:
        with self._lock:
            path = self._get_failures_path(bucket_name)
            if path.exists():
                path.unlink()
    def get_failure(self, bucket_name: str, object_key: str) -> Optional[ReplicationFailure]:
        failures = self.load_failures(bucket_name)
        return next((f for f in failures if f.object_key == object_key), None)
    def get_failure_count(self, bucket_name: str) -> int:
        return len(self.load_failures(bucket_name))
 class ReplicationManager:
-    def __init__(self, storage: ObjectStorage, connections: ConnectionStore, rules_path: Path) -> None:
+    def __init__(self, storage: ObjectStorage, connections: ConnectionStore, rules_path: Path, storage_root: Path) -> None:
        self.storage = storage
        self.connections = connections
        self.rules_path = rules_path
        self.storage_root = storage_root
        self._rules: Dict[str, ReplicationRule] = {}
        self._stats_lock = threading.Lock()
        self._executor = ThreadPoolExecutor(max_workers=4, thread_name_prefix="ReplicationWorker")
        self._shutdown = False
        self.failure_store = ReplicationFailureStore(storage_root)
        self.reload_rules()
    def shutdown(self, wait: bool = True) -> None:
        """Shutdown the replication executor gracefully.
        Args:
            wait: If True, wait for pending tasks to complete
        """
        self._shutdown = True
        self._executor.shutdown(wait=wait)
        logger.info("Replication manager shut down")
    def reload_rules(self) -> None:
        if not self.rules_path.exists():
            self._rules = {}
@@ -129,20 +271,7 @@ class ReplicationManager:
        Uses short timeouts to prevent blocking.
        """
        try:
-            config = Config(
+            s3 = _create_s3_client(connection, health_check=True)
                user_agent_extra=REPLICATION_USER_AGENT,
                connect_timeout=REPLICATION_CONNECT_TIMEOUT,
                read_timeout=REPLICATION_READ_TIMEOUT,
                retries={'max_attempts': 1}
            )
            s3 = boto3.client(
                "s3",
                endpoint_url=connection.endpoint_url,
                aws_access_key_id=connection.access_key,
                aws_secret_access_key=connection.secret_key,
                region_name=connection.region,
                config=config,
            )
            s3.list_buckets()
            return True
        except Exception as e:
@@ -153,9 +282,15 @@ class ReplicationManager:
        return self._rules.get(bucket_name)
    def set_rule(self, rule: ReplicationRule) -> None:
        old_rule = self._rules.get(rule.bucket_name)
        was_all_mode = old_rule and old_rule.mode == REPLICATION_MODE_ALL if old_rule else False
        self._rules[rule.bucket_name] = rule
        self.save_rules()
        if rule.mode == REPLICATION_MODE_ALL and rule.enabled and not was_all_mode:
            logger.info(f"Replication mode ALL enabled for {rule.bucket_name}, triggering sync of existing objects")
            self._executor.submit(self.replicate_existing_objects, rule.bucket_name)
    def delete_rule(self, bucket_name: str) -> None:
        if bucket_name in self._rules:
            del self._rules[bucket_name]
@@ -185,13 +320,7 @@ class ReplicationManager:
            source_objects = self.storage.list_objects_all(bucket_name)
            source_keys = {obj.key: obj.size for obj in source_objects}
-            s3 = boto3.client(
+            s3 = _create_s3_client(connection)
                "s3",
                endpoint_url=connection.endpoint_url,
                aws_access_key_id=connection.access_key,
                aws_secret_access_key=connection.secret_key,
                region_name=connection.region,
            )
            dest_keys = set()
            bytes_synced = 0
@@ -257,13 +386,7 @@ class ReplicationManager:
            raise ValueError(f"Connection {connection_id} not found")
        try:
-            s3 = boto3.client(
+            s3 = _create_s3_client(connection)
                "s3",
                endpoint_url=connection.endpoint_url,
                aws_access_key_id=connection.access_key,
                aws_secret_access_key=connection.secret_key,
                region_name=connection.region,
            )
            s3.create_bucket(Bucket=bucket_name)
        except ClientError as e:
            logger.error(f"Failed to create remote bucket {bucket_name}: {e}")
@@ -286,6 +409,14 @@ class ReplicationManager:
        self._executor.submit(self._replicate_task, bucket_name, object_key, rule, connection, action)
    def _replicate_task(self, bucket_name: str, object_key: str, rule: ReplicationRule, conn: RemoteConnection, action: str) -> None:
        if self._shutdown:
            return
        current_rule = self.get_rule(bucket_name)
        if not current_rule or not current_rule.enabled:
            logger.debug(f"Replication skipped for {bucket_name}/{object_key}: rule disabled or removed")
            return
        if ".." in object_key or object_key.startswith("/") or object_key.startswith("\\"):
            logger.error(f"Invalid object key in replication (path traversal attempt): {object_key}")
            return
@@ -297,38 +428,27 @@ class ReplicationManager:
            logger.error(f"Object key validation failed in replication: {e}")
            return
        file_size = 0
        try:
-            config = Config(
+            s3 = _create_s3_client(conn)
                user_agent_extra=REPLICATION_USER_AGENT,
                connect_timeout=REPLICATION_CONNECT_TIMEOUT,
                read_timeout=REPLICATION_READ_TIMEOUT,
                retries={'max_attempts': 2}, 
                signature_version='s3v4',  
                s3={
                    'addressing_style': 'path',
                },
                # Disable SDK automatic checksums - they cause SignatureDoesNotMatch errors
                # with S3-compatible servers that don't support CRC32 checksum headers
                request_checksum_calculation='when_required',
                response_checksum_validation='when_required',
            )
            s3 = boto3.client(
                "s3",
                endpoint_url=conn.endpoint_url,
                aws_access_key_id=conn.access_key,
                aws_secret_access_key=conn.secret_key,
                region_name=conn.region or 'us-east-1',
                config=config,
            )
            if action == "delete":
                try:
                    s3.delete_object(Bucket=rule.target_bucket, Key=object_key)
                    logger.info(f"Replicated DELETE {bucket_name}/{object_key} to {conn.name} ({rule.target_bucket})")
                    self._update_last_sync(bucket_name, object_key)
                    self.failure_store.remove_failure(bucket_name, object_key)
                except ClientError as e:
                    error_code = e.response.get('Error', {}).get('Code')
                    logger.error(f"Replication DELETE failed for {bucket_name}/{object_key}: {e}")
                    self.failure_store.add_failure(bucket_name, ReplicationFailure(
                        object_key=object_key,
                        error_message=str(e),
                        timestamp=time.time(),
                        failure_count=1,
                        bucket_name=bucket_name,
                        action="delete",
                        last_error_code=error_code,
                    ))
                return
            try:
@@ -337,34 +457,40 @@ class ReplicationManager:
                logger.error(f"Source object not found: {bucket_name}/{object_key}")
                return
            # Don't replicate metadata - destination server will generate its own
            # __etag__ and __size__. Replicating them causes signature mismatches when they have None/empty values.
            content_type, _ = mimetypes.guess_type(path)
            file_size = path.stat().st_size
            logger.info(f"Replicating {bucket_name}/{object_key}: Size={file_size}, ContentType={content_type}")
-            def do_put_object() -> None:
+            def do_upload() -> None:
-                """Helper to upload object.
+                """Upload object using appropriate method based on file size.
-                Reads the file content into memory first to avoid signature calculation
+                For small files (< 10 MiB): Read into memory for simpler handling
-                issues with certain binary file types (like GIFs) when streaming.
+                For large files: Use streaming upload to avoid memory issues
                Do NOT set ContentLength explicitly - boto3 calculates it from the bytes
                and setting it manually can cause SignatureDoesNotMatch errors.
                """
                extra_args = {}
                if content_type:
                    extra_args["ContentType"] = content_type
                if file_size >= STREAMING_THRESHOLD_BYTES:
                    s3.upload_file(
                        str(path),
                        rule.target_bucket,
                        object_key,
                        ExtraArgs=extra_args if extra_args else None,
                    )
                else:
                    file_content = path.read_bytes()
                    put_kwargs = {
                        "Bucket": rule.target_bucket,
                        "Key": object_key,
                        "Body": file_content,
                        **extra_args,
                    }
                if content_type:
                    put_kwargs["ContentType"] = content_type
                    s3.put_object(**put_kwargs)
            try:
-                do_put_object()
+                do_upload()
            except (ClientError, S3UploadFailedError) as e:
                error_code = None
                if isinstance(e, ClientError):
@@ -389,15 +515,95 @@ class ReplicationManager:
                            raise e
                    if bucket_ready:
-                        do_put_object()
+                        do_upload()
                else:
                    raise e
            logger.info(f"Replicated {bucket_name}/{object_key} to {conn.name} ({rule.target_bucket})")
            self._update_last_sync(bucket_name, object_key)
            self.failure_store.remove_failure(bucket_name, object_key)
        except (ClientError, OSError, ValueError) as e:
            error_code = None
            if isinstance(e, ClientError):
                error_code = e.response.get('Error', {}).get('Code')
            logger.error(f"Replication failed for {bucket_name}/{object_key}: {e}")
-        except Exception:
+            self.failure_store.add_failure(bucket_name, ReplicationFailure(
                object_key=object_key,
                error_message=str(e),
                timestamp=time.time(),
                failure_count=1,
                bucket_name=bucket_name,
                action=action,
                last_error_code=error_code,
            ))
        except Exception as e:
            logger.exception(f"Unexpected error during replication for {bucket_name}/{object_key}")
            self.failure_store.add_failure(bucket_name, ReplicationFailure(
                object_key=object_key,
                error_message=str(e),
                timestamp=time.time(),
                failure_count=1,
                bucket_name=bucket_name,
                action=action,
                last_error_code=None,
            ))
    def get_failed_items(self, bucket_name: str, limit: int = 50, offset: int = 0) -> List[ReplicationFailure]:
        failures = self.failure_store.load_failures(bucket_name)
        return failures[offset:offset + limit]
    def get_failure_count(self, bucket_name: str) -> int:
        return self.failure_store.get_failure_count(bucket_name)
    def retry_failed_item(self, bucket_name: str, object_key: str) -> bool:
        failure = self.failure_store.get_failure(bucket_name, object_key)
        if not failure:
            return False
        rule = self.get_rule(bucket_name)
        if not rule or not rule.enabled:
            return False
        connection = self.connections.get(rule.target_connection_id)
        if not connection:
            logger.warning(f"Cannot retry: Connection {rule.target_connection_id} not found")
            return False
        if not self.check_endpoint_health(connection):
            logger.warning(f"Cannot retry: Endpoint {connection.name} is not reachable")
            return False
        self._executor.submit(self._replicate_task, bucket_name, object_key, rule, connection, failure.action)
        return True
    def retry_all_failed(self, bucket_name: str) -> Dict[str, int]:
        failures = self.failure_store.load_failures(bucket_name)
        if not failures:
            return {"submitted": 0, "skipped": 0}
        rule = self.get_rule(bucket_name)
        if not rule or not rule.enabled:
            return {"submitted": 0, "skipped": len(failures)}
        connection = self.connections.get(rule.target_connection_id)
        if not connection:
            logger.warning(f"Cannot retry: Connection {rule.target_connection_id} not found")
            return {"submitted": 0, "skipped": len(failures)}
        if not self.check_endpoint_health(connection):
            logger.warning(f"Cannot retry: Endpoint {connection.name} is not reachable")
            return {"submitted": 0, "skipped": len(failures)}
        submitted = 0
        for failure in failures:
            self._executor.submit(self._replicate_task, bucket_name, failure.object_key, rule, connection, failure.action)
            submitted += 1
        return {"submitted": submitted, "skipped": 0}
    def dismiss_failure(self, bucket_name: str, object_key: str) -> bool:
        return self.failure_store.remove_failure(bucket_name, object_key)
    def clear_failures(self, bucket_name: str) -> None:
        self.failure_store.clear_failures(bucket_name)
--- a/app/s3_api.py
+++ b/app/s3_api.py
--- a/app/secret_store.py
+++ b/app/secret_store.py
@@ -1,4 +1,3 @@
 """Ephemeral store for one-time secrets communicated to the UI."""
 from __future__ import annotations
 import secrets
--- a/app/storage.py
+++ b/app/storage.py
@@ -1,4 +1,3 @@
 """Filesystem-backed object storage helpers."""
 from __future__ import annotations
 import hashlib
@@ -7,9 +6,11 @@ import os
 import re
 import shutil
 import stat
 import threading
 import time
 import unicodedata
 import uuid
 from collections import OrderedDict
 from contextlib import contextmanager
 from dataclasses import dataclass
 from datetime import datetime, timezone
@@ -75,6 +76,14 @@ class StorageError(RuntimeError):
    """Raised when the storage layer encounters an unrecoverable problem."""
 class BucketNotFoundError(StorageError):
    """Raised when the bucket does not exist."""
 class ObjectNotFoundError(StorageError):
    """Raised when the object does not exist."""
 class QuotaExceededError(StorageError):
    """Raised when an operation would exceed bucket quota limits."""
@@ -89,7 +98,7 @@ class ObjectMeta:
    key: str
    size: int
    last_modified: datetime
-    etag: str
+    etag: Optional[str] = None
    metadata: Optional[Dict[str, str]] = None
@@ -105,7 +114,7 @@ class ListObjectsResult:
    objects: List[ObjectMeta]
    is_truncated: bool
    next_continuation_token: Optional[str]
-    total_count: Optional[int] = None  # Total objects in bucket (from stats cache)
+    total_count: Optional[int] = None
 def _utcnow() -> datetime:
@@ -128,13 +137,27 @@ class ObjectStorage:
    BUCKET_VERSIONS_DIR = "versions"
    MULTIPART_MANIFEST = "manifest.json"
    BUCKET_CONFIG_FILE = ".bucket.json"
-    KEY_INDEX_CACHE_TTL = 30
+    DEFAULT_CACHE_TTL = 5
    OBJECT_CACHE_MAX_SIZE = 100
-    def __init__(self, root: Path) -> None:
+    def __init__(self, root: Path, cache_ttl: int = DEFAULT_CACHE_TTL) -> None:
        self.root = Path(root)
        self.root.mkdir(parents=True, exist_ok=True)
        self._ensure_system_roots()
-        self._object_cache: Dict[str, tuple[Dict[str, ObjectMeta], float]] = {}
+        self._object_cache: OrderedDict[str, tuple[Dict[str, ObjectMeta], float]] = OrderedDict()
        self._cache_lock = threading.Lock()
        self._bucket_locks: Dict[str, threading.Lock] = {}
        self._cache_version: Dict[str, int] = {}
        self._bucket_config_cache: Dict[str, tuple[dict[str, Any], float]] = {}
        self._bucket_config_cache_ttl = 30.0
        self._cache_ttl = cache_ttl
    def _get_bucket_lock(self, bucket_id: str) -> threading.Lock:
        """Get or create a lock for a specific bucket. Reduces global lock contention."""
        with self._cache_lock:
            if bucket_id not in self._bucket_locks:
                self._bucket_locks[bucket_id] = threading.Lock()
            return self._bucket_locks[bucket_id]
    def list_buckets(self) -> List[BucketMeta]:
        buckets: List[BucketMeta] = []
@@ -152,6 +175,11 @@ class ObjectStorage:
    def bucket_exists(self, bucket_name: str) -> bool:
        return self._bucket_path(bucket_name).exists()
    def _require_bucket_exists(self, bucket_path: Path) -> None:
        """Raise BucketNotFoundError if bucket does not exist."""
        if not bucket_path.exists():
            raise BucketNotFoundError("Bucket does not exist")
    def _validate_bucket_name(self, bucket_name: str) -> None:
        if len(bucket_name) < 3 or len(bucket_name) > 63:
            raise StorageError("Bucket name must be between 3 and 63 characters")
@@ -177,7 +205,7 @@ class ObjectStorage:
        """
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        cache_path = self._system_bucket_root(bucket_name) / "stats.json"
        if cache_path.exists():
@@ -239,12 +267,13 @@ class ObjectStorage:
    def delete_bucket(self, bucket_name: str) -> None:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
-        if self._has_visible_objects(bucket_path):
+        has_objects, has_versions, has_multipart = self._check_bucket_contents(bucket_path)
        if has_objects:
            raise StorageError("Bucket not empty")
-        if self._has_archived_versions(bucket_path):
+        if has_versions:
            raise StorageError("Bucket contains archived object versions")
-        if self._has_active_multipart_uploads(bucket_path):
+        if has_multipart:
            raise StorageError("Bucket has active multipart uploads")
        self._remove_tree(bucket_path)
        self._remove_tree(self._system_bucket_root(bucket_path.name))
@@ -271,7 +300,7 @@ class ObjectStorage:
        """
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        object_cache = self._get_object_cache(bucket_id, bucket_path)
@@ -332,7 +361,7 @@ class ObjectStorage:
    ) -> ObjectMeta:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        safe_key = self._sanitize_object_key(object_key)
@@ -388,20 +417,22 @@ class ObjectStorage:
        self._write_metadata(bucket_id, safe_key, combined_meta)
        self._invalidate_bucket_stats_cache(bucket_id)
        self._invalidate_object_cache(bucket_id)
-        return ObjectMeta(
+        obj_meta = ObjectMeta(
            key=safe_key.as_posix(),
            size=stat.st_size,
            last_modified=datetime.fromtimestamp(stat.st_mtime, timezone.utc),
            etag=etag,
            metadata=metadata,
        )
        self._update_object_cache_entry(bucket_id, safe_key.as_posix(), obj_meta)
        return obj_meta
    def get_object_path(self, bucket_name: str, object_key: str) -> Path:
        path = self._object_path(bucket_name, object_key)
        if not path.exists():
-            raise StorageError("Object not found")
+            raise ObjectNotFoundError("Object not found")
        return path
    def get_object_metadata(self, bucket_name: str, object_key: str) -> Dict[str, str]:
@@ -444,7 +475,7 @@ class ObjectStorage:
        self._delete_metadata(bucket_id, rel)
        self._invalidate_bucket_stats_cache(bucket_id)
-        self._invalidate_object_cache(bucket_id)
+        self._update_object_cache_entry(bucket_id, safe_key.as_posix(), None)
        self._cleanup_empty_parents(path, bucket_path)
    def purge_object(self, bucket_name: str, object_key: str) -> None:
@@ -466,13 +497,13 @@ class ObjectStorage:
            shutil.rmtree(legacy_version_dir, ignore_errors=True)
        self._invalidate_bucket_stats_cache(bucket_id)
-        self._invalidate_object_cache(bucket_id)
+        self._update_object_cache_entry(bucket_id, rel.as_posix(), None)
        self._cleanup_empty_parents(target, bucket_path)
    def is_versioning_enabled(self, bucket_name: str) -> bool:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        return self._is_versioning_enabled(bucket_path)
    def set_bucket_versioning(self, bucket_name: str, enabled: bool) -> None:
@@ -664,11 +695,11 @@ class ObjectStorage:
        """Get tags for an object."""
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        safe_key = self._sanitize_object_key(object_key)
        object_path = bucket_path / safe_key
        if not object_path.exists():
-            raise StorageError("Object does not exist")
+            raise ObjectNotFoundError("Object does not exist")
        for meta_file in (self._metadata_file(bucket_path.name, safe_key), self._legacy_metadata_file(bucket_path.name, safe_key)):
            if not meta_file.exists():
@@ -687,11 +718,11 @@ class ObjectStorage:
        """Set tags for an object."""
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        safe_key = self._sanitize_object_key(object_key)
        object_path = bucket_path / safe_key
        if not object_path.exists():
-            raise StorageError("Object does not exist")
+            raise ObjectNotFoundError("Object does not exist")
        meta_file = self._metadata_file(bucket_path.name, safe_key)
@@ -725,12 +756,10 @@ class ObjectStorage:
    def list_object_versions(self, bucket_name: str, object_key: str) -> List[Dict[str, Any]]:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        safe_key = self._sanitize_object_key(object_key)
        version_dir = self._version_dir(bucket_id, safe_key)
        if not version_dir.exists():
            version_dir = self._legacy_version_dir(bucket_id, safe_key)
        if not version_dir.exists():
            version_dir = self._legacy_version_dir(bucket_id, safe_key)
            if not version_dir.exists():
@@ -751,7 +780,7 @@ class ObjectStorage:
    def restore_object_version(self, bucket_name: str, object_key: str, version_id: str) -> ObjectMeta:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        safe_key = self._sanitize_object_key(object_key)
        version_dir = self._version_dir(bucket_id, safe_key)
@@ -785,10 +814,33 @@ class ObjectStorage:
            metadata=metadata or None,
        )
    def delete_object_version(self, bucket_name: str, object_key: str, version_id: str) -> None:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        safe_key = self._sanitize_object_key(object_key)
        version_dir = self._version_dir(bucket_id, safe_key)
        data_path = version_dir / f"{version_id}.bin"
        meta_path = version_dir / f"{version_id}.json"
        if not data_path.exists() and not meta_path.exists():
            legacy_version_dir = self._legacy_version_dir(bucket_id, safe_key)
            data_path = legacy_version_dir / f"{version_id}.bin"
            meta_path = legacy_version_dir / f"{version_id}.json"
        if not data_path.exists() and not meta_path.exists():
            raise StorageError(f"Version {version_id} not found")
        if data_path.exists():
            data_path.unlink()
        if meta_path.exists():
            meta_path.unlink()
        parent = data_path.parent
        if parent.exists() and not any(parent.iterdir()):
            parent.rmdir()
    def list_orphaned_objects(self, bucket_name: str) -> List[Dict[str, Any]]:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        version_roots = [self._bucket_versions_root(bucket_id), self._legacy_versions_root(bucket_id)]
        if not any(root.exists() for root in version_roots):
@@ -856,7 +908,7 @@ class ObjectStorage:
    ) -> str:
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
-            raise StorageError("Bucket does not exist")
+            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        safe_key = self._sanitize_object_key(object_key)
        upload_id = uuid.uuid4().hex
@@ -879,8 +931,12 @@ class ObjectStorage:
        part_number: int,
        stream: BinaryIO,
    ) -> str:
-        if part_number < 1:
+        """Upload a part for a multipart upload.
-            raise StorageError("part_number must be >= 1")
+
        Uses file locking to safely update the manifest and handle concurrent uploads.
        """
        if part_number < 1 or part_number > 10000:
            raise StorageError("part_number must be between 1 and 10000")
        bucket_path = self._bucket_path(bucket_name)
        upload_root = self._multipart_dir(bucket_path.name, upload_id)
@@ -892,8 +948,19 @@ class ObjectStorage:
        checksum = hashlib.md5()
        part_filename = f"part-{part_number:05d}.part"
        part_path = upload_root / part_filename
-        with part_path.open("wb") as target:
+        temp_path = upload_root / f".{part_filename}.tmp"
        try:
            with temp_path.open("wb") as target:
                shutil.copyfileobj(_HashingReader(stream, checksum), target)
            temp_path.replace(part_path)
        except OSError:
            try:
                temp_path.unlink(missing_ok=True)
            except OSError:
                pass
            raise
        record = {
            "etag": checksum.hexdigest(),
            "size": part_path.stat().st_size,
@@ -903,16 +970,28 @@ class ObjectStorage:
        manifest_path = upload_root / self.MULTIPART_MANIFEST
        lock_path = upload_root / ".manifest.lock"
        max_retries = 3
        for attempt in range(max_retries):
            try:
                with lock_path.open("w") as lock_file:
                    with _file_lock(lock_file):
                        try:
                            manifest = json.loads(manifest_path.read_text(encoding="utf-8"))
                        except (OSError, json.JSONDecodeError) as exc:
                            if attempt < max_retries - 1:
                                time.sleep(0.1 * (attempt + 1))
                                continue
                            raise StorageError("Multipart manifest unreadable") from exc
                        parts = manifest.setdefault("parts", {})
                        parts[str(part_number)] = record
                        manifest_path.write_text(json.dumps(manifest), encoding="utf-8")
                break
            except OSError as exc:
                if attempt < max_retries - 1:
                    time.sleep(0.1 * (attempt + 1))
                    continue
                raise StorageError(f"Failed to update multipart manifest: {exc}") from exc
        return record["etag"]
@@ -1001,11 +1080,6 @@ class ObjectStorage:
                                    checksum.update(data)
                                    target.write(data)
                    metadata = manifest.get("metadata")
                    if metadata:
                        self._write_metadata(bucket_id, safe_key, metadata)
                    else:
                        self._delete_metadata(bucket_id, safe_key)
        except BlockingIOError:
            raise StorageError("Another upload to this key is in progress")
        finally:
@@ -1019,13 +1093,23 @@ class ObjectStorage:
        self._invalidate_bucket_stats_cache(bucket_id)
        stat = destination.stat()
-        return ObjectMeta(
+        etag = checksum.hexdigest()
        metadata = manifest.get("metadata")
        internal_meta = {"__etag__": etag, "__size__": str(stat.st_size)}
        combined_meta = {**internal_meta, **(metadata or {})}
        self._write_metadata(bucket_id, safe_key, combined_meta)
        obj_meta = ObjectMeta(
            key=safe_key.as_posix(),
            size=stat.st_size,
            last_modified=datetime.fromtimestamp(stat.st_mtime, timezone.utc),
-            etag=checksum.hexdigest(),
+            etag=etag,
            metadata=metadata,
        )
        self._update_object_cache_entry(bucket_id, safe_key.as_posix(), obj_meta)
        return obj_meta
    def abort_multipart_upload(self, bucket_name: str, upload_id: str) -> None:
        bucket_path = self._bucket_path(bucket_name)
@@ -1064,6 +1148,59 @@ class ObjectStorage:
        parts.sort(key=lambda x: x["PartNumber"])
        return parts
    def list_multipart_uploads(self, bucket_name: str, include_orphaned: bool = False) -> List[Dict[str, Any]]:
        """List all active multipart uploads for a bucket.
        Args:
            bucket_name: The bucket to list uploads for.
            include_orphaned: If True, also include upload directories that have
                files but no valid manifest.json (orphaned/interrupted uploads).
        """
        bucket_path = self._bucket_path(bucket_name)
        if not bucket_path.exists():
            raise BucketNotFoundError("Bucket does not exist")
        bucket_id = bucket_path.name
        uploads = []
        for multipart_root in (
            self._multipart_bucket_root(bucket_id),
            self._legacy_multipart_bucket_root(bucket_id),
        ):
            if not multipart_root.exists():
                continue
            for upload_dir in multipart_root.iterdir():
                if not upload_dir.is_dir():
                    continue
                manifest_path = upload_dir / "manifest.json"
                if manifest_path.exists():
                    try:
                        manifest = json.loads(manifest_path.read_text(encoding="utf-8"))
                        uploads.append({
                            "upload_id": manifest.get("upload_id", upload_dir.name),
                            "object_key": manifest.get("object_key", ""),
                            "created_at": manifest.get("created_at", ""),
                        })
                    except (OSError, json.JSONDecodeError):
                        if include_orphaned:
                            has_files = any(upload_dir.rglob("*"))
                            if has_files:
                                uploads.append({
                                    "upload_id": upload_dir.name,
                                    "object_key": "(unknown)",
                                    "created_at": "",
                                    "orphaned": True,
                                })
                elif include_orphaned:
                    has_files = any(f.is_file() for f in upload_dir.rglob("*"))
                    if has_files:
                        uploads.append({
                            "upload_id": upload_dir.name,
                            "object_key": "(unknown)",
                            "created_at": "",
                            "orphaned": True,
                        })
        return uploads
    def _bucket_path(self, bucket_name: str) -> Path:
        safe_name = self._sanitize_bucket_name(bucket_name)
        return self.root / safe_name
@@ -1245,9 +1382,6 @@ class ObjectStorage:
                                etag = meta_cache.get(key)
                                if not etag:
                                    etag = f'"{stat.st_size}-{int(stat.st_mtime)}"'
                                objects[key] = ObjectMeta(
                                    key=key,
                                    size=stat.st_size,
@@ -1264,28 +1398,104 @@ class ObjectStorage:
        return objects
    def _get_object_cache(self, bucket_id: str, bucket_path: Path) -> Dict[str, ObjectMeta]:
-        """Get cached object metadata for a bucket, refreshing if stale."""
+        """Get cached object metadata for a bucket, refreshing if stale.
        now = time.time()
        cached = self._object_cache.get(bucket_id)
        Uses LRU eviction to prevent unbounded cache growth.
        Thread-safe with per-bucket locks to reduce contention.
        """
        now = time.time()
        with self._cache_lock:
            cached = self._object_cache.get(bucket_id)
            if cached:
                objects, timestamp = cached
-            if now - timestamp < self.KEY_INDEX_CACHE_TTL:
+                if now - timestamp < self._cache_ttl:
                    self._object_cache.move_to_end(bucket_id)
                    return objects
            cache_version = self._cache_version.get(bucket_id, 0)
        bucket_lock = self._get_bucket_lock(bucket_id)
        with bucket_lock:
            with self._cache_lock:
                cached = self._object_cache.get(bucket_id)
                if cached:
                    objects, timestamp = cached
                    if now - timestamp < self._cache_ttl:
                        self._object_cache.move_to_end(bucket_id)
                        return objects
            objects = self._build_object_cache(bucket_path)
-        self._object_cache[bucket_id] = (objects, now)
+
            with self._cache_lock:
                current_version = self._cache_version.get(bucket_id, 0)
                if current_version != cache_version:
                    objects = self._build_object_cache(bucket_path)
                while len(self._object_cache) >= self.OBJECT_CACHE_MAX_SIZE:
                    self._object_cache.popitem(last=False)
                self._object_cache[bucket_id] = (objects, time.time())
                self._object_cache.move_to_end(bucket_id)
        return objects
    def _invalidate_object_cache(self, bucket_id: str) -> None:
-        """Invalidate the object cache and etag index for a bucket."""
+        """Invalidate the object cache and etag index for a bucket.
        Increments version counter to signal stale reads.
        """
        with self._cache_lock:
            self._object_cache.pop(bucket_id, None)
            self._cache_version[bucket_id] = self._cache_version.get(bucket_id, 0) + 1
        etag_index_path = self._system_bucket_root(bucket_id) / "etag_index.json"
        try:
            etag_index_path.unlink(missing_ok=True)
        except OSError:
            pass
    def _update_object_cache_entry(self, bucket_id: str, key: str, meta: Optional[ObjectMeta]) -> None:
        """Update a single entry in the object cache instead of invalidating the whole cache.
        This is a performance optimization - lazy update instead of full invalidation.
        """
        with self._cache_lock:
            cached = self._object_cache.get(bucket_id)
            if cached:
                objects, timestamp = cached
                if meta is None:
                    objects.pop(key, None)
                else:
                    objects[key] = meta
    def warm_cache(self, bucket_names: Optional[List[str]] = None) -> None:
        """Pre-warm the object cache for specified buckets or all buckets.
        This is called on startup to ensure the first request is fast.
        """
        if bucket_names is None:
            bucket_names = [b.name for b in self.list_buckets()]
        for bucket_name in bucket_names:
            try:
                bucket_path = self._bucket_path(bucket_name)
                if bucket_path.exists():
                    self._get_object_cache(bucket_path.name, bucket_path)
            except Exception:
                pass
    def warm_cache_async(self, bucket_names: Optional[List[str]] = None) -> threading.Thread:
        """Start cache warming in a background thread.
        Returns the thread object so caller can optionally wait for it.
        """
        thread = threading.Thread(
            target=self.warm_cache,
            args=(bucket_names,),
            daemon=True,
            name="cache-warmer",
        )
        thread.start()
        return thread
    def _ensure_system_roots(self) -> None:
        for path in (
            self._system_root_path(),
@@ -1305,19 +1515,31 @@ class ObjectStorage:
        return self._system_bucket_root(bucket_name) / self.BUCKET_CONFIG_FILE
    def _read_bucket_config(self, bucket_name: str) -> dict[str, Any]:
        now = time.time()
        cached = self._bucket_config_cache.get(bucket_name)
        if cached:
            config, cached_time = cached
            if now - cached_time < self._bucket_config_cache_ttl:
                return config.copy()
        config_path = self._bucket_config_path(bucket_name)
        if not config_path.exists():
            self._bucket_config_cache[bucket_name] = ({}, now)
            return {}
        try:
            data = json.loads(config_path.read_text(encoding="utf-8"))
-            return data if isinstance(data, dict) else {}
+            config = data if isinstance(data, dict) else {}
            self._bucket_config_cache[bucket_name] = (config, now)
            return config.copy()
        except (OSError, json.JSONDecodeError):
            self._bucket_config_cache[bucket_name] = ({}, now)
            return {}
    def _write_bucket_config(self, bucket_name: str, payload: dict[str, Any]) -> None:
        config_path = self._bucket_config_path(bucket_name)
        config_path.parent.mkdir(parents=True, exist_ok=True)
        config_path.write_text(json.dumps(payload), encoding="utf-8")
        self._bucket_config_cache[bucket_name] = (payload.copy(), time.time())
    def _set_bucket_config_entry(self, bucket_name: str, key: str, value: Any | None) -> None:
        config = self._read_bucket_config(bucket_name)
@@ -1439,33 +1661,64 @@ class ObjectStorage:
            except OSError:
                continue
-    def _has_visible_objects(self, bucket_path: Path) -> bool:
+    def _check_bucket_contents(self, bucket_path: Path) -> tuple[bool, bool, bool]:
        """Check bucket for objects, versions, and multipart uploads in a single pass.
        Returns (has_visible_objects, has_archived_versions, has_active_multipart_uploads).
        Uses early exit when all three are found.
        """
        has_objects = False
        has_versions = False
        has_multipart = False
        bucket_name = bucket_path.name
        for path in bucket_path.rglob("*"):
            if has_objects:
                break
            if not path.is_file():
                continue
            rel = path.relative_to(bucket_path)
            if rel.parts and rel.parts[0] in self.INTERNAL_FOLDERS:
                continue
-            return True
+            has_objects = True
-        return False
+
        for version_root in (
            self._bucket_versions_root(bucket_name),
            self._legacy_versions_root(bucket_name),
        ):
            if has_versions:
                break
            if version_root.exists():
                for path in version_root.rglob("*"):
                    if path.is_file():
                        has_versions = True
                        break
        for uploads_root in (
            self._multipart_bucket_root(bucket_name),
            self._legacy_multipart_bucket_root(bucket_name),
        ):
            if has_multipart:
                break
            if uploads_root.exists():
                for path in uploads_root.rglob("*"):
                    if path.is_file():
                        has_multipart = True
                        break
        return has_objects, has_versions, has_multipart
    def _has_visible_objects(self, bucket_path: Path) -> bool:
        has_objects, _, _ = self._check_bucket_contents(bucket_path)
        return has_objects
    def _has_archived_versions(self, bucket_path: Path) -> bool:
-        for version_root in (
+        _, has_versions, _ = self._check_bucket_contents(bucket_path)
-            self._bucket_versions_root(bucket_path.name),
+        return has_versions
            self._legacy_versions_root(bucket_path.name),
        ):
            if version_root.exists() and any(path.is_file() for path in version_root.rglob("*")):
                return True
        return False
    def _has_active_multipart_uploads(self, bucket_path: Path) -> bool:
-        for uploads_root in (
+        _, _, has_multipart = self._check_bucket_contents(bucket_path)
-            self._multipart_bucket_root(bucket_path.name),
+        return has_multipart
            self._legacy_multipart_bucket_root(bucket_path.name),
        ):
            if uploads_root.exists() and any(path.is_file() for path in uploads_root.rglob("*")):
                return True
        return False
    def _remove_tree(self, path: Path) -> None:
        if not path.exists():
@@ -1474,7 +1727,7 @@ class ObjectStorage:
            try:
                os.chmod(target_path, stat.S_IRWXU)
                func(target_path)
-            except Exception as exc:  # pragma: no cover - fallback failure
+            except Exception as exc:
                raise StorageError(f"Unable to delete bucket contents: {exc}") from exc
        try:
--- a/app/ui.py
+++ b/app/ui.py
--- a/app/version.py
+++ b/app/version.py
@@ -1,7 +1,6 @@
 """Central location for the application version string."""
 from __future__ import annotations
-APP_VERSION = "0.1.8"
+APP_VERSION = "0.2.1"
 def get_version() -> str:
--- a/docs.md
+++ b/docs.md
@@ -189,6 +189,52 @@ All configuration is done via environment variables. The table below lists every
 | `KMS_ENABLED` | `false` | Enable KMS key management for encryption. |
 | `KMS_KEYS_PATH` | `data/.myfsio.sys/keys/kms_keys.json` | Path to store KMS key metadata. |
 ## Lifecycle Rules
 Lifecycle rules automate object management by scheduling deletions based on object age.
 ### Enabling Lifecycle Enforcement
 By default, lifecycle enforcement is disabled. Enable it by setting the environment variable:
 ```bash
 LIFECYCLE_ENABLED=true python run.py
 ```
 Or in your `myfsio.env` file:
 ```
 LIFECYCLE_ENABLED=true
 LIFECYCLE_INTERVAL_SECONDS=3600  # Check interval (default: 1 hour)
 ```
 ### Configuring Rules
 Once enabled, configure lifecycle rules via:
 - **Web UI:** Bucket Details → Lifecycle tab → Add Rule
 - **S3 API:** `PUT /<bucket>?lifecycle` with XML configuration
 ### Available Actions
 | Action | Description |
 |--------|-------------|
 | **Expiration** | Delete current version objects after N days |
 | **NoncurrentVersionExpiration** | Delete old versions N days after becoming noncurrent (requires versioning) |
 | **AbortIncompleteMultipartUpload** | Clean up incomplete multipart uploads after N days |
 ### Example Configuration (XML)
 ```xml
 <LifecycleConfiguration>
  <Rule>
    <ID>DeleteOldLogs</ID>
    <Status>Enabled</Status>
    <Filter><Prefix>logs/</Prefix></Filter>
    <Expiration><Days>30</Days></Expiration>
  </Rule>
 </LifecycleConfiguration>
 ```
 ### Performance Tuning
 | Variable | Default | Notes |
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,5 @@
 [pytest]
 testpaths = tests
 norecursedirs = data .git __pycache__ .venv
 markers =
    integration: marks tests as integration tests (may require external services)
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,7 @@ Flask>=3.1.2
 Flask-Limiter>=4.1.1
 Flask-Cors>=6.0.2
 Flask-WTF>=1.2.2
 python-dotenv>=1.2.1
 pytest>=9.0.2
 requests>=2.32.5
 boto3>=1.42.14
--- a/run.py
+++ b/run.py
@@ -6,6 +6,17 @@ import os
 import sys
 import warnings
 from multiprocessing import Process
 from pathlib import Path
 from dotenv import load_dotenv
 for _env_file in [
    Path("/opt/myfsio/myfsio.env"),
    Path.cwd() / ".env",
    Path.cwd() / "myfsio.env",
 ]:
    if _env_file.exists():
        load_dotenv(_env_file, override=True)
 from app import create_api_app, create_ui_app
 from app.config import AppConfig
--- a/static/css/main.css
+++ b/static/css/main.css
--- a/static/images/MyFISO.ico
+++ b/static/images/MyFISO.ico
--- a/static/images/MyFISO.png
+++ b/static/images/MyFISO.png
--- a/static/images/MyFSIO.ico
+++ b/static/images/MyFSIO.ico
--- a/static/images/MyFSIO.png
+++ b/static/images/MyFSIO.png
--- a/static/js/bucket-detail-main.js
+++ b/static/js/bucket-detail-main.js
--- a/static/js/bucket-detail-operations.js
+++ b/static/js/bucket-detail-operations.js
@@ -0,0 +1,192 @@
 window.BucketDetailOperations = (function() {
  'use strict';
  let showMessage = function() {};
  let escapeHtml = function(s) { return s; };
  function init(config) {
    showMessage = config.showMessage || showMessage;
    escapeHtml = config.escapeHtml || escapeHtml;
  }
  async function loadLifecycleRules(card, endpoint) {
    if (!card || !endpoint) return;
    const body = card.querySelector('[data-lifecycle-body]');
    if (!body) return;
    try {
      const response = await fetch(endpoint);
      const data = await response.json();
      if (!response.ok) {
        body.innerHTML = `<tr><td colspan="5" class="text-center text-danger py-3">${escapeHtml(data.error || 'Failed to load')}</td></tr>`;
        return;
      }
      const rules = data.rules || [];
      if (rules.length === 0) {
        body.innerHTML = '<tr><td colspan="5" class="text-center text-muted py-3">No lifecycle rules configured</td></tr>';
        return;
      }
      body.innerHTML = rules.map(rule => {
        const actions = [];
        if (rule.expiration_days) actions.push(`Delete after ${rule.expiration_days} days`);
        if (rule.noncurrent_days) actions.push(`Delete old versions after ${rule.noncurrent_days} days`);
        if (rule.abort_mpu_days) actions.push(`Abort incomplete MPU after ${rule.abort_mpu_days} days`);
        return `
          <tr>
            <td class="fw-medium">${escapeHtml(rule.id)}</td>
            <td><code>${escapeHtml(rule.prefix || '(all)')}</code></td>
            <td>${actions.map(a => `<div class="small">${escapeHtml(a)}</div>`).join('')}</td>
            <td>
              <span class="badge ${rule.status === 'Enabled' ? 'text-bg-success' : 'text-bg-secondary'}">${escapeHtml(rule.status)}</span>
            </td>
            <td class="text-end">
              <button class="btn btn-sm btn-outline-danger" onclick="BucketDetailOperations.deleteLifecycleRule('${escapeHtml(rule.id)}')">
                <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
                  <path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6z"/>
                  <path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
                </svg>
              </button>
            </td>
          </tr>
        `;
      }).join('');
    } catch (err) {
      body.innerHTML = `<tr><td colspan="5" class="text-center text-danger py-3">${escapeHtml(err.message)}</td></tr>`;
    }
  }
  async function loadCorsRules(card, endpoint) {
    if (!card || !endpoint) return;
    const body = document.getElementById('cors-rules-body');
    if (!body) return;
    try {
      const response = await fetch(endpoint);
      const data = await response.json();
      if (!response.ok) {
        body.innerHTML = `<tr><td colspan="5" class="text-center text-danger py-3">${escapeHtml(data.error || 'Failed to load')}</td></tr>`;
        return;
      }
      const rules = data.rules || [];
      if (rules.length === 0) {
        body.innerHTML = '<tr><td colspan="5" class="text-center text-muted py-3">No CORS rules configured</td></tr>';
        return;
      }
      body.innerHTML = rules.map((rule, idx) => `
        <tr>
          <td>${(rule.allowed_origins || []).map(o => `<code class="d-block">${escapeHtml(o)}</code>`).join('')}</td>
          <td>${(rule.allowed_methods || []).map(m => `<span class="badge text-bg-secondary me-1">${escapeHtml(m)}</span>`).join('')}</td>
          <td class="small text-muted">${(rule.allowed_headers || []).slice(0, 3).join(', ')}${(rule.allowed_headers || []).length > 3 ? '...' : ''}</td>
          <td class="text-muted">${rule.max_age_seconds || 0}s</td>
          <td class="text-end">
            <button class="btn btn-sm btn-outline-danger" onclick="BucketDetailOperations.deleteCorsRule(${idx})">
              <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
                <path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6z"/>
                <path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
              </svg>
            </button>
          </td>
        </tr>
      `).join('');
    } catch (err) {
      body.innerHTML = `<tr><td colspan="5" class="text-center text-danger py-3">${escapeHtml(err.message)}</td></tr>`;
    }
  }
  async function loadAcl(card, endpoint) {
    if (!card || !endpoint) return;
    const body = card.querySelector('[data-acl-body]');
    if (!body) return;
    try {
      const response = await fetch(endpoint);
      const data = await response.json();
      if (!response.ok) {
        body.innerHTML = `<tr><td colspan="3" class="text-center text-danger py-3">${escapeHtml(data.error || 'Failed to load')}</td></tr>`;
        return;
      }
      const grants = data.grants || [];
      if (grants.length === 0) {
        body.innerHTML = '<tr><td colspan="3" class="text-center text-muted py-3">No ACL grants configured</td></tr>';
        return;
      }
      body.innerHTML = grants.map(grant => {
        const grantee = grant.grantee_type === 'CanonicalUser'
          ? grant.display_name || grant.grantee_id
          : grant.grantee_uri || grant.grantee_type;
        return `
          <tr>
            <td class="fw-medium">${escapeHtml(grantee)}</td>
            <td><span class="badge text-bg-info">${escapeHtml(grant.permission)}</span></td>
            <td class="text-muted small">${escapeHtml(grant.grantee_type)}</td>
          </tr>
        `;
      }).join('');
    } catch (err) {
      body.innerHTML = `<tr><td colspan="3" class="text-center text-danger py-3">${escapeHtml(err.message)}</td></tr>`;
    }
  }
  async function deleteLifecycleRule(ruleId) {
    if (!confirm(`Delete lifecycle rule "${ruleId}"?`)) return;
    const card = document.getElementById('lifecycle-rules-card');
    if (!card) return;
    const endpoint = card.dataset.lifecycleUrl;
    const csrfToken = window.getCsrfToken ? window.getCsrfToken() : '';
    try {
      const resp = await fetch(endpoint, {
        method: 'DELETE',
        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken },
        body: JSON.stringify({ rule_id: ruleId })
      });
      const data = await resp.json();
      if (!resp.ok) throw new Error(data.error || 'Failed to delete');
      showMessage({ title: 'Rule deleted', body: `Lifecycle rule "${ruleId}" has been deleted.`, variant: 'success' });
      loadLifecycleRules(card, endpoint);
    } catch (err) {
      showMessage({ title: 'Delete failed', body: err.message, variant: 'danger' });
    }
  }
  async function deleteCorsRule(index) {
    if (!confirm('Delete this CORS rule?')) return;
    const card = document.getElementById('cors-rules-card');
    if (!card) return;
    const endpoint = card.dataset.corsUrl;
    const csrfToken = window.getCsrfToken ? window.getCsrfToken() : '';
    try {
      const resp = await fetch(endpoint, {
        method: 'DELETE',
        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken },
        body: JSON.stringify({ rule_index: index })
      });
      const data = await resp.json();
      if (!resp.ok) throw new Error(data.error || 'Failed to delete');
      showMessage({ title: 'Rule deleted', body: 'CORS rule has been deleted.', variant: 'success' });
      loadCorsRules(card, endpoint);
    } catch (err) {
      showMessage({ title: 'Delete failed', body: err.message, variant: 'danger' });
    }
  }
  return {
    init: init,
    loadLifecycleRules: loadLifecycleRules,
    loadCorsRules: loadCorsRules,
    loadAcl: loadAcl,
    deleteLifecycleRule: deleteLifecycleRule,
    deleteCorsRule: deleteCorsRule
  };
 })();
--- a/static/js/bucket-detail-upload.js
+++ b/static/js/bucket-detail-upload.js
@@ -0,0 +1,548 @@
 window.BucketDetailUpload = (function() {
  'use strict';
  const MULTIPART_THRESHOLD = 8 * 1024 * 1024;
  const CHUNK_SIZE = 8 * 1024 * 1024;
  let state = {
    isUploading: false,
    uploadProgress: { current: 0, total: 0, currentFile: '' }
  };
  let elements = {};
  let callbacks = {};
  function init(config) {
    elements = {
      uploadForm: config.uploadForm,
      uploadFileInput: config.uploadFileInput,
      uploadModal: config.uploadModal,
      uploadModalEl: config.uploadModalEl,
      uploadSubmitBtn: config.uploadSubmitBtn,
      uploadCancelBtn: config.uploadCancelBtn,
      uploadBtnText: config.uploadBtnText,
      uploadDropZone: config.uploadDropZone,
      uploadDropZoneLabel: config.uploadDropZoneLabel,
      uploadProgressStack: config.uploadProgressStack,
      uploadKeyPrefix: config.uploadKeyPrefix,
      singleFileOptions: config.singleFileOptions,
      bulkUploadProgress: config.bulkUploadProgress,
      bulkUploadStatus: config.bulkUploadStatus,
      bulkUploadCounter: config.bulkUploadCounter,
      bulkUploadProgressBar: config.bulkUploadProgressBar,
      bulkUploadCurrentFile: config.bulkUploadCurrentFile,
      bulkUploadResults: config.bulkUploadResults,
      bulkUploadSuccessAlert: config.bulkUploadSuccessAlert,
      bulkUploadErrorAlert: config.bulkUploadErrorAlert,
      bulkUploadSuccessCount: config.bulkUploadSuccessCount,
      bulkUploadErrorCount: config.bulkUploadErrorCount,
      bulkUploadErrorList: config.bulkUploadErrorList,
      floatingProgress: config.floatingProgress,
      floatingProgressBar: config.floatingProgressBar,
      floatingProgressStatus: config.floatingProgressStatus,
      floatingProgressTitle: config.floatingProgressTitle,
      floatingProgressExpand: config.floatingProgressExpand
    };
    callbacks = {
      showMessage: config.showMessage || function() {},
      formatBytes: config.formatBytes || function(b) { return b + ' bytes'; },
      escapeHtml: config.escapeHtml || function(s) { return s; },
      onUploadComplete: config.onUploadComplete || function() {},
      hasFolders: config.hasFolders || function() { return false; },
      getCurrentPrefix: config.getCurrentPrefix || function() { return ''; }
    };
    setupEventListeners();
    setupBeforeUnload();
  }
  function isUploading() {
    return state.isUploading;
  }
  function setupBeforeUnload() {
    window.addEventListener('beforeunload', (e) => {
      if (state.isUploading) {
        e.preventDefault();
        e.returnValue = 'Upload in progress. Are you sure you want to leave?';
        return e.returnValue;
      }
    });
  }
  function showFloatingProgress() {
    if (elements.floatingProgress) {
      elements.floatingProgress.classList.remove('d-none');
    }
  }
  function hideFloatingProgress() {
    if (elements.floatingProgress) {
      elements.floatingProgress.classList.add('d-none');
    }
  }
  function updateFloatingProgress(current, total, currentFile) {
    state.uploadProgress = { current, total, currentFile: currentFile || '' };
    if (elements.floatingProgressBar && total > 0) {
      const percent = Math.round((current / total) * 100);
      elements.floatingProgressBar.style.width = `${percent}%`;
    }
    if (elements.floatingProgressStatus) {
      if (currentFile) {
        elements.floatingProgressStatus.textContent = `${current}/${total} files - ${currentFile}`;
      } else {
        elements.floatingProgressStatus.textContent = `${current}/${total} files completed`;
      }
    }
    if (elements.floatingProgressTitle) {
      elements.floatingProgressTitle.textContent = `Uploading ${total} file${total !== 1 ? 's' : ''}...`;
    }
  }
  function refreshUploadDropLabel() {
    if (!elements.uploadDropZoneLabel || !elements.uploadFileInput) return;
    const files = elements.uploadFileInput.files;
    if (!files || files.length === 0) {
      elements.uploadDropZoneLabel.textContent = 'No file selected';
      if (elements.singleFileOptions) elements.singleFileOptions.classList.remove('d-none');
      return;
    }
    elements.uploadDropZoneLabel.textContent = files.length === 1 ? files[0].name : `${files.length} files selected`;
    if (elements.singleFileOptions) {
      elements.singleFileOptions.classList.toggle('d-none', files.length > 1);
    }
  }
  function updateUploadBtnText() {
    if (!elements.uploadBtnText || !elements.uploadFileInput) return;
    const files = elements.uploadFileInput.files;
    if (!files || files.length <= 1) {
      elements.uploadBtnText.textContent = 'Upload';
    } else {
      elements.uploadBtnText.textContent = `Upload ${files.length} files`;
    }
  }
  function resetUploadUI() {
    if (elements.bulkUploadProgress) elements.bulkUploadProgress.classList.add('d-none');
    if (elements.bulkUploadResults) elements.bulkUploadResults.classList.add('d-none');
    if (elements.bulkUploadSuccessAlert) elements.bulkUploadSuccessAlert.classList.remove('d-none');
    if (elements.bulkUploadErrorAlert) elements.bulkUploadErrorAlert.classList.add('d-none');
    if (elements.bulkUploadErrorList) elements.bulkUploadErrorList.innerHTML = '';
    if (elements.uploadSubmitBtn) elements.uploadSubmitBtn.disabled = false;
    if (elements.uploadFileInput) elements.uploadFileInput.disabled = false;
    if (elements.uploadProgressStack) elements.uploadProgressStack.innerHTML = '';
    if (elements.uploadDropZone) {
      elements.uploadDropZone.classList.remove('upload-locked');
      elements.uploadDropZone.style.pointerEvents = '';
    }
    state.isUploading = false;
    hideFloatingProgress();
  }
  function setUploadLockState(locked) {
    if (elements.uploadDropZone) {
      elements.uploadDropZone.classList.toggle('upload-locked', locked);
      elements.uploadDropZone.style.pointerEvents = locked ? 'none' : '';
    }
    if (elements.uploadFileInput) {
      elements.uploadFileInput.disabled = locked;
    }
  }
  function createProgressItem(file) {
    const item = document.createElement('div');
    item.className = 'upload-progress-item';
    item.dataset.state = 'uploading';
    item.innerHTML = `
      <div class="d-flex justify-content-between align-items-start">
        <div class="min-width-0 flex-grow-1">
          <div class="file-name">${callbacks.escapeHtml(file.name)}</div>
          <div class="file-size">${callbacks.formatBytes(file.size)}</div>
        </div>
        <div class="upload-status text-end ms-2">Preparing...</div>
      </div>
      <div class="progress-container">
        <div class="progress">
          <div class="progress-bar bg-primary" role="progressbar" style="width: 0%"></div>
        </div>
        <div class="progress-text">
          <span class="progress-loaded">0 B</span>
          <span class="progress-percent">0%</span>
        </div>
      </div>
    `;
    return item;
  }
  function updateProgressItem(item, { loaded, total, status, progressState, error }) {
    if (progressState) item.dataset.state = progressState;
    const statusEl = item.querySelector('.upload-status');
    const progressBar = item.querySelector('.progress-bar');
    const progressLoaded = item.querySelector('.progress-loaded');
    const progressPercent = item.querySelector('.progress-percent');
    if (status) {
      statusEl.textContent = status;
      statusEl.className = 'upload-status text-end ms-2';
      if (progressState === 'success') statusEl.classList.add('success');
      if (progressState === 'error') statusEl.classList.add('error');
    }
    if (typeof loaded === 'number' && typeof total === 'number' && total > 0) {
      const percent = Math.round((loaded / total) * 100);
      progressBar.style.width = `${percent}%`;
      progressLoaded.textContent = `${callbacks.formatBytes(loaded)} / ${callbacks.formatBytes(total)}`;
      progressPercent.textContent = `${percent}%`;
    }
    if (error) {
      const progressContainer = item.querySelector('.progress-container');
      if (progressContainer) {
        progressContainer.innerHTML = `<div class="text-danger small mt-1">${callbacks.escapeHtml(error)}</div>`;
      }
    }
  }
  async function uploadMultipart(file, objectKey, metadata, progressItem, urls) {
    const csrfToken = document.querySelector('input[name="csrf_token"]')?.value;
    updateProgressItem(progressItem, { status: 'Initiating...', loaded: 0, total: file.size });
    const initResp = await fetch(urls.initUrl, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken || '' },
      body: JSON.stringify({ object_key: objectKey, metadata })
    });
    if (!initResp.ok) {
      const err = await initResp.json().catch(() => ({}));
      throw new Error(err.error || 'Failed to initiate upload');
    }
    const { upload_id } = await initResp.json();
    const partUrl = urls.partTemplate.replace('UPLOAD_ID_PLACEHOLDER', upload_id);
    const completeUrl = urls.completeTemplate.replace('UPLOAD_ID_PLACEHOLDER', upload_id);
    const abortUrl = urls.abortTemplate.replace('UPLOAD_ID_PLACEHOLDER', upload_id);
    const parts = [];
    const totalParts = Math.ceil(file.size / CHUNK_SIZE);
    let uploadedBytes = 0;
    try {
      for (let partNumber = 1; partNumber <= totalParts; partNumber++) {
        const start = (partNumber - 1) * CHUNK_SIZE;
        const end = Math.min(start + CHUNK_SIZE, file.size);
        const chunk = file.slice(start, end);
        updateProgressItem(progressItem, {
          status: `Part ${partNumber}/${totalParts}`,
          loaded: uploadedBytes,
          total: file.size
        });
        const partResp = await fetch(`${partUrl}?partNumber=${partNumber}`, {
          method: 'PUT',
          headers: { 'X-CSRFToken': csrfToken || '' },
          body: chunk
        });
        if (!partResp.ok) {
          const err = await partResp.json().catch(() => ({}));
          throw new Error(err.error || `Part ${partNumber} failed`);
        }
        const partData = await partResp.json();
        parts.push({ part_number: partNumber, etag: partData.etag });
        uploadedBytes += chunk.size;
        updateProgressItem(progressItem, {
          loaded: uploadedBytes,
          total: file.size
        });
      }
      updateProgressItem(progressItem, { status: 'Completing...', loaded: file.size, total: file.size });
      const completeResp = await fetch(completeUrl, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken || '' },
        body: JSON.stringify({ parts })
      });
      if (!completeResp.ok) {
        const err = await completeResp.json().catch(() => ({}));
        throw new Error(err.error || 'Failed to complete upload');
      }
      return await completeResp.json();
    } catch (err) {
      try {
        await fetch(abortUrl, { method: 'DELETE', headers: { 'X-CSRFToken': csrfToken || '' } });
      } catch {}
      throw err;
    }
  }
  async function uploadRegular(file, objectKey, metadata, progressItem, formAction) {
    return new Promise((resolve, reject) => {
      const formData = new FormData();
      formData.append('object', file);
      formData.append('object_key', objectKey);
      if (metadata) formData.append('metadata', JSON.stringify(metadata));
      const csrfToken = document.querySelector('input[name="csrf_token"]')?.value;
      if (csrfToken) formData.append('csrf_token', csrfToken);
      const xhr = new XMLHttpRequest();
      xhr.open('POST', formAction, true);
      xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
      xhr.upload.addEventListener('progress', (e) => {
        if (e.lengthComputable) {
          updateProgressItem(progressItem, {
            status: 'Uploading...',
            loaded: e.loaded,
            total: e.total
          });
        }
      });
      xhr.addEventListener('load', () => {
        if (xhr.status >= 200 && xhr.status < 300) {
          try {
            const data = JSON.parse(xhr.responseText);
            if (data.status === 'error') {
              reject(new Error(data.message || 'Upload failed'));
            } else {
              resolve(data);
            }
          } catch {
            resolve({});
          }
        } else {
          try {
            const data = JSON.parse(xhr.responseText);
            reject(new Error(data.message || `Upload failed (${xhr.status})`));
          } catch {
            reject(new Error(`Upload failed (${xhr.status})`));
          }
        }
      });
      xhr.addEventListener('error', () => reject(new Error('Network error')));
      xhr.addEventListener('abort', () => reject(new Error('Upload aborted')));
      xhr.send(formData);
    });
  }
  async function uploadSingleFile(file, keyPrefix, metadata, progressItem, urls) {
    const objectKey = keyPrefix ? `${keyPrefix}${file.name}` : file.name;
    const shouldUseMultipart = file.size >= MULTIPART_THRESHOLD && urls.initUrl;
    if (!progressItem && elements.uploadProgressStack) {
      progressItem = createProgressItem(file);
      elements.uploadProgressStack.appendChild(progressItem);
    }
    try {
      let result;
      if (shouldUseMultipart) {
        updateProgressItem(progressItem, { status: 'Multipart upload...', loaded: 0, total: file.size });
        result = await uploadMultipart(file, objectKey, metadata, progressItem, urls);
      } else {
        updateProgressItem(progressItem, { status: 'Uploading...', loaded: 0, total: file.size });
        result = await uploadRegular(file, objectKey, metadata, progressItem, urls.formAction);
      }
      updateProgressItem(progressItem, { progressState: 'success', status: 'Complete', loaded: file.size, total: file.size });
      return result;
    } catch (err) {
      updateProgressItem(progressItem, { progressState: 'error', status: 'Failed', error: err.message });
      throw err;
    }
  }
  async function performBulkUpload(files, urls) {
    if (state.isUploading || !files || files.length === 0) return;
    state.isUploading = true;
    setUploadLockState(true);
    const keyPrefix = (elements.uploadKeyPrefix?.value || '').trim();
    const metadataRaw = elements.uploadForm?.querySelector('textarea[name="metadata"]')?.value?.trim();
    let metadata = null;
    if (metadataRaw) {
      try {
        metadata = JSON.parse(metadataRaw);
      } catch {
        callbacks.showMessage({ title: 'Invalid metadata', body: 'Metadata must be valid JSON.', variant: 'danger' });
        resetUploadUI();
        return;
      }
    }
    if (elements.bulkUploadProgress) elements.bulkUploadProgress.classList.remove('d-none');
    if (elements.bulkUploadResults) elements.bulkUploadResults.classList.add('d-none');
    if (elements.uploadSubmitBtn) elements.uploadSubmitBtn.disabled = true;
    if (elements.uploadFileInput) elements.uploadFileInput.disabled = true;
    const successFiles = [];
    const errorFiles = [];
    const total = files.length;
    updateFloatingProgress(0, total, files[0]?.name || '');
    for (let i = 0; i < total; i++) {
      const file = files[i];
      const current = i + 1;
      if (elements.bulkUploadCounter) elements.bulkUploadCounter.textContent = `${current}/${total}`;
      if (elements.bulkUploadCurrentFile) elements.bulkUploadCurrentFile.textContent = `Uploading: ${file.name}`;
      if (elements.bulkUploadProgressBar) {
        const percent = Math.round((current / total) * 100);
        elements.bulkUploadProgressBar.style.width = `${percent}%`;
      }
      updateFloatingProgress(i, total, file.name);
      try {
        await uploadSingleFile(file, keyPrefix, metadata, null, urls);
        successFiles.push(file.name);
      } catch (error) {
        errorFiles.push({ name: file.name, error: error.message || 'Unknown error' });
      }
    }
    updateFloatingProgress(total, total);
    if (elements.bulkUploadProgress) elements.bulkUploadProgress.classList.add('d-none');
    if (elements.bulkUploadResults) elements.bulkUploadResults.classList.remove('d-none');
    if (elements.bulkUploadSuccessCount) elements.bulkUploadSuccessCount.textContent = successFiles.length;
    if (successFiles.length === 0 && elements.bulkUploadSuccessAlert) {
      elements.bulkUploadSuccessAlert.classList.add('d-none');
    }
    if (errorFiles.length > 0) {
      if (elements.bulkUploadErrorCount) elements.bulkUploadErrorCount.textContent = errorFiles.length;
      if (elements.bulkUploadErrorAlert) elements.bulkUploadErrorAlert.classList.remove('d-none');
      if (elements.bulkUploadErrorList) {
        elements.bulkUploadErrorList.innerHTML = errorFiles
          .map(f => `<li><strong>${callbacks.escapeHtml(f.name)}</strong>: ${callbacks.escapeHtml(f.error)}</li>`)
          .join('');
      }
    }
    state.isUploading = false;
    setUploadLockState(false);
    if (successFiles.length > 0) {
      if (elements.uploadBtnText) elements.uploadBtnText.textContent = 'Refreshing...';
      callbacks.onUploadComplete(successFiles, errorFiles);
    } else {
      if (elements.uploadSubmitBtn) elements.uploadSubmitBtn.disabled = false;
      if (elements.uploadFileInput) elements.uploadFileInput.disabled = false;
    }
  }
  function setupEventListeners() {
    if (elements.uploadFileInput) {
      elements.uploadFileInput.addEventListener('change', () => {
        if (state.isUploading) return;
        refreshUploadDropLabel();
        updateUploadBtnText();
        resetUploadUI();
      });
    }
    if (elements.uploadDropZone) {
      elements.uploadDropZone.addEventListener('click', () => {
        if (state.isUploading) return;
        elements.uploadFileInput?.click();
      });
    }
    if (elements.floatingProgressExpand) {
      elements.floatingProgressExpand.addEventListener('click', () => {
        if (elements.uploadModal) {
          elements.uploadModal.show();
        }
      });
    }
    if (elements.uploadModalEl) {
      elements.uploadModalEl.addEventListener('hide.bs.modal', () => {
        if (state.isUploading) {
          showFloatingProgress();
        }
      });
      elements.uploadModalEl.addEventListener('hidden.bs.modal', () => {
        if (!state.isUploading) {
          resetUploadUI();
          if (elements.uploadFileInput) elements.uploadFileInput.value = '';
          refreshUploadDropLabel();
          updateUploadBtnText();
        }
      });
      elements.uploadModalEl.addEventListener('show.bs.modal', () => {
        if (state.isUploading) {
          hideFloatingProgress();
        }
        if (callbacks.hasFolders() && callbacks.getCurrentPrefix()) {
          if (elements.uploadKeyPrefix) {
            elements.uploadKeyPrefix.value = callbacks.getCurrentPrefix();
          }
        } else if (elements.uploadKeyPrefix) {
          elements.uploadKeyPrefix.value = '';
        }
      });
    }
  }
  function wireDropTarget(target, options) {
    const { highlightClass = '', autoOpenModal = false } = options || {};
    if (!target) return;
    const preventDefaults = (event) => {
      event.preventDefault();
      event.stopPropagation();
    };
    ['dragenter', 'dragover'].forEach((eventName) => {
      target.addEventListener(eventName, (event) => {
        preventDefaults(event);
        if (state.isUploading) return;
        if (highlightClass) {
          target.classList.add(highlightClass);
        }
      });
    });
    ['dragleave', 'drop'].forEach((eventName) => {
      target.addEventListener(eventName, (event) => {
        preventDefaults(event);
        if (highlightClass) {
          target.classList.remove(highlightClass);
        }
      });
    });
    target.addEventListener('drop', (event) => {
      if (state.isUploading) return;
      if (!event.dataTransfer?.files?.length || !elements.uploadFileInput) {
        return;
      }
      elements.uploadFileInput.files = event.dataTransfer.files;
      elements.uploadFileInput.dispatchEvent(new Event('change', { bubbles: true }));
      if (autoOpenModal && elements.uploadModal) {
        elements.uploadModal.show();
      }
    });
  }
  return {
    init: init,
    isUploading: isUploading,
    performBulkUpload: performBulkUpload,
    wireDropTarget: wireDropTarget,
    resetUploadUI: resetUploadUI,
    refreshUploadDropLabel: refreshUploadDropLabel,
    updateUploadBtnText: updateUploadBtnText
  };
 })();
--- a/static/js/bucket-detail-utils.js
+++ b/static/js/bucket-detail-utils.js
@@ -0,0 +1,120 @@
 window.BucketDetailUtils = (function() {
  'use strict';
  function setupJsonAutoIndent(textarea) {
    if (!textarea) return;
    textarea.addEventListener('keydown', function(e) {
      if (e.key === 'Enter') {
        e.preventDefault();
        const start = this.selectionStart;
        const end = this.selectionEnd;
        const value = this.value;
        const lineStart = value.lastIndexOf('\n', start - 1) + 1;
        const currentLine = value.substring(lineStart, start);
        const indentMatch = currentLine.match(/^(\s*)/);
        let indent = indentMatch ? indentMatch[1] : '';
        const trimmedLine = currentLine.trim();
        const lastChar = trimmedLine.slice(-1);
        let newIndent = indent;
        let insertAfter = '';
        if (lastChar === '{' || lastChar === '[') {
          newIndent = indent + '  ';
          const charAfterCursor = value.substring(start, start + 1).trim();
          if ((lastChar === '{' && charAfterCursor === '}') ||
              (lastChar === '[' && charAfterCursor === ']')) {
            insertAfter = '\n' + indent;
          }
        } else if (lastChar === ',' || lastChar === ':') {
          newIndent = indent;
        }
        const insertion = '\n' + newIndent + insertAfter;
        const newValue = value.substring(0, start) + insertion + value.substring(end);
        this.value = newValue;
        const newCursorPos = start + 1 + newIndent.length;
        this.selectionStart = this.selectionEnd = newCursorPos;
        this.dispatchEvent(new Event('input', { bubbles: true }));
      }
      if (e.key === 'Tab') {
        e.preventDefault();
        const start = this.selectionStart;
        const end = this.selectionEnd;
        if (e.shiftKey) {
          const lineStart = this.value.lastIndexOf('\n', start - 1) + 1;
          const lineContent = this.value.substring(lineStart, start);
          if (lineContent.startsWith('  ')) {
            this.value = this.value.substring(0, lineStart) +
                         this.value.substring(lineStart + 2);
            this.selectionStart = this.selectionEnd = Math.max(lineStart, start - 2);
          }
        } else {
          this.value = this.value.substring(0, start) + '  ' + this.value.substring(end);
          this.selectionStart = this.selectionEnd = start + 2;
        }
        this.dispatchEvent(new Event('input', { bubbles: true }));
      }
    });
  }
  function formatBytes(bytes) {
    if (!Number.isFinite(bytes)) return `${bytes} bytes`;
    const units = ['bytes', 'KB', 'MB', 'GB', 'TB'];
    let i = 0;
    let size = bytes;
    while (size >= 1024 && i < units.length - 1) {
      size /= 1024;
      i++;
    }
    return `${size.toFixed(i === 0 ? 0 : 1)} ${units[i]}`;
  }
  function escapeHtml(value) {
    if (value === null || value === undefined) return '';
    return String(value)
      .replace(/&/g, '&amp;')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;')
      .replace(/'/g, '&#039;');
  }
  function fallbackCopy(text) {
    const textArea = document.createElement('textarea');
    textArea.value = text;
    textArea.style.position = 'fixed';
    textArea.style.left = '-9999px';
    textArea.style.top = '-9999px';
    document.body.appendChild(textArea);
    textArea.focus();
    textArea.select();
    let success = false;
    try {
      success = document.execCommand('copy');
    } catch {
      success = false;
    }
    document.body.removeChild(textArea);
    return success;
  }
  return {
    setupJsonAutoIndent: setupJsonAutoIndent,
    formatBytes: formatBytes,
    escapeHtml: escapeHtml,
    fallbackCopy: fallbackCopy
  };
 })();
--- a/static/js/connections-management.js
+++ b/static/js/connections-management.js
@@ -0,0 +1,344 @@
 window.ConnectionsManagement = (function() {
  'use strict';
  var endpoints = {};
  var csrfToken = '';
  function init(config) {
    endpoints = config.endpoints || {};
    csrfToken = config.csrfToken || '';
    setupEventListeners();
    checkAllConnectionHealth();
  }
  function togglePassword(id) {
    var input = document.getElementById(id);
    if (input) {
      input.type = input.type === 'password' ? 'text' : 'password';
    }
  }
  async function testConnection(formId, resultId) {
    var form = document.getElementById(formId);
    var resultDiv = document.getElementById(resultId);
    if (!form || !resultDiv) return;
    var formData = new FormData(form);
    var data = {};
    formData.forEach(function(value, key) {
      if (key !== 'csrf_token') {
        data[key] = value;
      }
    });
    resultDiv.innerHTML = '<div class="text-info"><span class="spinner-border spinner-border-sm" role="status" aria-hidden="true"></span> Testing connection...</div>';
    var controller = new AbortController();
    var timeoutId = setTimeout(function() { controller.abort(); }, 20000);
    try {
      var response = await fetch(endpoints.test, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-CSRFToken': csrfToken
        },
        body: JSON.stringify(data),
        signal: controller.signal
      });
      clearTimeout(timeoutId);
      var result = await response.json();
      if (response.ok) {
        resultDiv.innerHTML = '<div class="text-success">' +
          '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">' +
          '<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/>' +
          '</svg>' + window.UICore.escapeHtml(result.message) + '</div>';
      } else {
        resultDiv.innerHTML = '<div class="text-danger">' +
          '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">' +
          '<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>' +
          '</svg>' + window.UICore.escapeHtml(result.message) + '</div>';
      }
    } catch (error) {
      clearTimeout(timeoutId);
      var message = error.name === 'AbortError'
        ? 'Connection test timed out - endpoint may be unreachable'
        : 'Connection failed: Network error';
      resultDiv.innerHTML = '<div class="text-danger">' +
        '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">' +
        '<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>' +
        '</svg>' + message + '</div>';
    }
  }
  async function checkConnectionHealth(connectionId, statusEl) {
    if (!statusEl) return;
    try {
      var controller = new AbortController();
      var timeoutId = setTimeout(function() { controller.abort(); }, 15000);
      var response = await fetch(endpoints.healthTemplate.replace('CONNECTION_ID', connectionId), {
        signal: controller.signal
      });
      clearTimeout(timeoutId);
      var data = await response.json();
      if (data.healthy) {
        statusEl.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-success" viewBox="0 0 16 16">' +
          '<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/></svg>';
        statusEl.setAttribute('data-status', 'healthy');
        statusEl.setAttribute('title', 'Connected');
      } else {
        statusEl.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-danger" viewBox="0 0 16 16">' +
          '<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/></svg>';
        statusEl.setAttribute('data-status', 'unhealthy');
        statusEl.setAttribute('title', data.error || 'Unreachable');
      }
    } catch (error) {
      statusEl.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-warning" viewBox="0 0 16 16">' +
        '<path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z"/></svg>';
      statusEl.setAttribute('data-status', 'unknown');
      statusEl.setAttribute('title', 'Could not check status');
    }
  }
  function checkAllConnectionHealth() {
    var rows = document.querySelectorAll('tr[data-connection-id]');
    rows.forEach(function(row, index) {
      var connectionId = row.getAttribute('data-connection-id');
      var statusEl = row.querySelector('.connection-status');
      if (statusEl) {
        setTimeout(function() {
          checkConnectionHealth(connectionId, statusEl);
        }, index * 200);
      }
    });
  }
  function updateConnectionCount() {
    var countBadge = document.querySelector('.badge.bg-primary.bg-opacity-10.text-primary.fs-6');
    if (countBadge) {
      var remaining = document.querySelectorAll('tr[data-connection-id]').length;
      countBadge.textContent = remaining + ' connection' + (remaining !== 1 ? 's' : '');
    }
  }
  function createConnectionRowHtml(conn) {
    var ak = conn.access_key || '';
    var maskedKey = ak.length > 12 ? ak.slice(0, 8) + '...' + ak.slice(-4) : ak;
    return '<tr data-connection-id="' + window.UICore.escapeHtml(conn.id) + '">' +
      '<td class="text-center">' +
      '<span class="connection-status" data-status="checking" title="Checking...">' +
      '<span class="spinner-border spinner-border-sm text-muted" role="status" style="width: 12px; height: 12px;"></span>' +
      '</span></td>' +
      '<td><div class="d-flex align-items-center gap-2">' +
      '<div class="connection-icon"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">' +
      '<path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383z"/></svg></div>' +
      '<span class="fw-medium">' + window.UICore.escapeHtml(conn.name) + '</span>' +
      '</div></td>' +
      '<td><span class="text-muted small text-truncate d-inline-block" style="max-width: 200px;" title="' + window.UICore.escapeHtml(conn.endpoint_url) + '">' + window.UICore.escapeHtml(conn.endpoint_url) + '</span></td>' +
      '<td><span class="badge bg-primary bg-opacity-10 text-primary">' + window.UICore.escapeHtml(conn.region) + '</span></td>' +
      '<td><code class="small">' + window.UICore.escapeHtml(maskedKey) + '</code></td>' +
      '<td class="text-end"><div class="btn-group btn-group-sm" role="group">' +
      '<button type="button" class="btn btn-outline-secondary" data-bs-toggle="modal" data-bs-target="#editConnectionModal" ' +
      'data-id="' + window.UICore.escapeHtml(conn.id) + '" data-name="' + window.UICore.escapeHtml(conn.name) + '" ' +
      'data-endpoint="' + window.UICore.escapeHtml(conn.endpoint_url) + '" data-region="' + window.UICore.escapeHtml(conn.region) + '" ' +
      'data-access="' + window.UICore.escapeHtml(conn.access_key) + '" data-secret="' + window.UICore.escapeHtml(conn.secret_key || '') + '" title="Edit connection">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">' +
      '<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5z"/></svg></button>' +
      '<button type="button" class="btn btn-outline-danger" data-bs-toggle="modal" data-bs-target="#deleteConnectionModal" ' +
      'data-id="' + window.UICore.escapeHtml(conn.id) + '" data-name="' + window.UICore.escapeHtml(conn.name) + '" title="Delete connection">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">' +
      '<path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6z"/>' +
      '<path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/></svg></button>' +
      '</div></td></tr>';
  }
  function setupEventListeners() {
    var testBtn = document.getElementById('testConnectionBtn');
    if (testBtn) {
      testBtn.addEventListener('click', function() {
        testConnection('createConnectionForm', 'testResult');
      });
    }
    var editTestBtn = document.getElementById('editTestConnectionBtn');
    if (editTestBtn) {
      editTestBtn.addEventListener('click', function() {
        testConnection('editConnectionForm', 'editTestResult');
      });
    }
    var editModal = document.getElementById('editConnectionModal');
    if (editModal) {
      editModal.addEventListener('show.bs.modal', function(event) {
        var button = event.relatedTarget;
        if (!button) return;
        var id = button.getAttribute('data-id');
        document.getElementById('edit_name').value = button.getAttribute('data-name') || '';
        document.getElementById('edit_endpoint_url').value = button.getAttribute('data-endpoint') || '';
        document.getElementById('edit_region').value = button.getAttribute('data-region') || '';
        document.getElementById('edit_access_key').value = button.getAttribute('data-access') || '';
        document.getElementById('edit_secret_key').value = button.getAttribute('data-secret') || '';
        document.getElementById('editTestResult').innerHTML = '';
        var form = document.getElementById('editConnectionForm');
        form.action = endpoints.updateTemplate.replace('CONNECTION_ID', id);
      });
    }
    var deleteModal = document.getElementById('deleteConnectionModal');
    if (deleteModal) {
      deleteModal.addEventListener('show.bs.modal', function(event) {
        var button = event.relatedTarget;
        if (!button) return;
        var id = button.getAttribute('data-id');
        var name = button.getAttribute('data-name');
        document.getElementById('deleteConnectionName').textContent = name;
        var form = document.getElementById('deleteConnectionForm');
        form.action = endpoints.deleteTemplate.replace('CONNECTION_ID', id);
      });
    }
    var createForm = document.getElementById('createConnectionForm');
    if (createForm) {
      createForm.addEventListener('submit', function(e) {
        e.preventDefault();
        window.UICore.submitFormAjax(createForm, {
          successMessage: 'Connection created',
          onSuccess: function(data) {
            createForm.reset();
            document.getElementById('testResult').innerHTML = '';
            if (data.connection) {
              var emptyState = document.querySelector('.empty-state');
              if (emptyState) {
                var cardBody = emptyState.closest('.card-body');
                if (cardBody) {
                  cardBody.innerHTML = '<div class="table-responsive"><table class="table table-hover align-middle mb-0">' +
                    '<thead class="table-light"><tr>' +
                    '<th scope="col" style="width: 50px;">Status</th>' +
                    '<th scope="col">Name</th><th scope="col">Endpoint</th>' +
                    '<th scope="col">Region</th><th scope="col">Access Key</th>' +
                    '<th scope="col" class="text-end">Actions</th></tr></thead>' +
                    '<tbody></tbody></table></div>';
                }
              }
              var tbody = document.querySelector('table tbody');
              if (tbody) {
                tbody.insertAdjacentHTML('beforeend', createConnectionRowHtml(data.connection));
                var newRow = tbody.lastElementChild;
                var statusEl = newRow.querySelector('.connection-status');
                if (statusEl) {
                  checkConnectionHealth(data.connection.id, statusEl);
                }
              }
              updateConnectionCount();
            } else {
              location.reload();
            }
          }
        });
      });
    }
    var editForm = document.getElementById('editConnectionForm');
    if (editForm) {
      editForm.addEventListener('submit', function(e) {
        e.preventDefault();
        window.UICore.submitFormAjax(editForm, {
          successMessage: 'Connection updated',
          onSuccess: function(data) {
            var modal = bootstrap.Modal.getInstance(document.getElementById('editConnectionModal'));
            if (modal) modal.hide();
            var connId = editForm.action.split('/').slice(-2)[0];
            var row = document.querySelector('tr[data-connection-id="' + connId + '"]');
            if (row && data.connection) {
              var nameCell = row.querySelector('.fw-medium');
              if (nameCell) nameCell.textContent = data.connection.name;
              var endpointCell = row.querySelector('.text-truncate');
              if (endpointCell) {
                endpointCell.textContent = data.connection.endpoint_url;
                endpointCell.title = data.connection.endpoint_url;
              }
              var regionBadge = row.querySelector('.badge.bg-primary');
              if (regionBadge) regionBadge.textContent = data.connection.region;
              var accessCode = row.querySelector('code.small');
              if (accessCode && data.connection.access_key) {
                var ak = data.connection.access_key;
                accessCode.textContent = ak.slice(0, 8) + '...' + ak.slice(-4);
              }
              var editBtn = row.querySelector('[data-bs-target="#editConnectionModal"]');
              if (editBtn) {
                editBtn.setAttribute('data-name', data.connection.name);
                editBtn.setAttribute('data-endpoint', data.connection.endpoint_url);
                editBtn.setAttribute('data-region', data.connection.region);
                editBtn.setAttribute('data-access', data.connection.access_key);
                if (data.connection.secret_key) {
                  editBtn.setAttribute('data-secret', data.connection.secret_key);
                }
              }
              var deleteBtn = row.querySelector('[data-bs-target="#deleteConnectionModal"]');
              if (deleteBtn) {
                deleteBtn.setAttribute('data-name', data.connection.name);
              }
              var statusEl = row.querySelector('.connection-status');
              if (statusEl) {
                checkConnectionHealth(connId, statusEl);
              }
            }
          }
        });
      });
    }
    var deleteForm = document.getElementById('deleteConnectionForm');
    if (deleteForm) {
      deleteForm.addEventListener('submit', function(e) {
        e.preventDefault();
        window.UICore.submitFormAjax(deleteForm, {
          successMessage: 'Connection deleted',
          onSuccess: function(data) {
            var modal = bootstrap.Modal.getInstance(document.getElementById('deleteConnectionModal'));
            if (modal) modal.hide();
            var connId = deleteForm.action.split('/').slice(-2)[0];
            var row = document.querySelector('tr[data-connection-id="' + connId + '"]');
            if (row) {
              row.remove();
            }
            updateConnectionCount();
            if (document.querySelectorAll('tr[data-connection-id]').length === 0) {
              location.reload();
            }
          }
        });
      });
    }
  }
  return {
    init: init,
    togglePassword: togglePassword,
    testConnection: testConnection,
    checkConnectionHealth: checkConnectionHealth
  };
 })();
--- a/static/js/iam-management.js
+++ b/static/js/iam-management.js
@@ -0,0 +1,545 @@
 window.IAMManagement = (function() {
  'use strict';
  var users = [];
  var currentUserKey = null;
  var endpoints = {};
  var csrfToken = '';
  var iamLocked = false;
  var policyModal = null;
  var editUserModal = null;
  var deleteUserModal = null;
  var rotateSecretModal = null;
  var currentRotateKey = null;
  var currentEditKey = null;
  var currentDeleteKey = null;
  var policyTemplates = {
    full: [{ bucket: '*', actions: ['list', 'read', 'write', 'delete', 'share', 'policy', 'replication', 'iam:list_users', 'iam:*'] }],
    readonly: [{ bucket: '*', actions: ['list', 'read'] }],
    writer: [{ bucket: '*', actions: ['list', 'read', 'write'] }]
  };
  function init(config) {
    users = config.users || [];
    currentUserKey = config.currentUserKey || null;
    endpoints = config.endpoints || {};
    csrfToken = config.csrfToken || '';
    iamLocked = config.iamLocked || false;
    if (iamLocked) return;
    initModals();
    setupJsonAutoIndent();
    setupCopyButtons();
    setupPolicyEditor();
    setupCreateUserModal();
    setupEditUserModal();
    setupDeleteUserModal();
    setupRotateSecretModal();
    setupFormHandlers();
  }
  function initModals() {
    var policyModalEl = document.getElementById('policyEditorModal');
    var editModalEl = document.getElementById('editUserModal');
    var deleteModalEl = document.getElementById('deleteUserModal');
    var rotateModalEl = document.getElementById('rotateSecretModal');
    if (policyModalEl) policyModal = new bootstrap.Modal(policyModalEl);
    if (editModalEl) editUserModal = new bootstrap.Modal(editModalEl);
    if (deleteModalEl) deleteUserModal = new bootstrap.Modal(deleteModalEl);
    if (rotateModalEl) rotateSecretModal = new bootstrap.Modal(rotateModalEl);
  }
  function setupJsonAutoIndent() {
    window.UICore.setupJsonAutoIndent(document.getElementById('policyEditorDocument'));
    window.UICore.setupJsonAutoIndent(document.getElementById('createUserPolicies'));
  }
  function setupCopyButtons() {
    document.querySelectorAll('.config-copy').forEach(function(button) {
      button.addEventListener('click', async function() {
        var targetId = button.dataset.copyTarget;
        var target = document.getElementById(targetId);
        if (!target) return;
        await window.UICore.copyToClipboard(target.innerText, button, 'Copy JSON');
      });
    });
    var secretCopyButton = document.querySelector('[data-secret-copy]');
    if (secretCopyButton) {
      secretCopyButton.addEventListener('click', async function() {
        var secretInput = document.getElementById('disclosedSecretValue');
        if (!secretInput) return;
        await window.UICore.copyToClipboard(secretInput.value, secretCopyButton, 'Copy');
      });
    }
  }
  function getUserPolicies(accessKey) {
    var user = users.find(function(u) { return u.access_key === accessKey; });
    return user ? JSON.stringify(user.policies, null, 2) : '';
  }
  function applyPolicyTemplate(name, textareaEl) {
    if (policyTemplates[name] && textareaEl) {
      textareaEl.value = JSON.stringify(policyTemplates[name], null, 2);
    }
  }
  function setupPolicyEditor() {
    var userLabelEl = document.getElementById('policyEditorUserLabel');
    var userInputEl = document.getElementById('policyEditorUser');
    var textareaEl = document.getElementById('policyEditorDocument');
    document.querySelectorAll('[data-policy-template]').forEach(function(button) {
      button.addEventListener('click', function() {
        applyPolicyTemplate(button.dataset.policyTemplate, textareaEl);
      });
    });
    document.querySelectorAll('[data-policy-editor]').forEach(function(button) {
      button.addEventListener('click', function() {
        var key = button.getAttribute('data-access-key');
        if (!key) return;
        userLabelEl.textContent = key;
        userInputEl.value = key;
        textareaEl.value = getUserPolicies(key);
        policyModal.show();
      });
    });
  }
  function setupCreateUserModal() {
    var createUserPoliciesEl = document.getElementById('createUserPolicies');
    document.querySelectorAll('[data-create-policy-template]').forEach(function(button) {
      button.addEventListener('click', function() {
        applyPolicyTemplate(button.dataset.createPolicyTemplate, createUserPoliciesEl);
      });
    });
  }
  function setupEditUserModal() {
    var editUserForm = document.getElementById('editUserForm');
    var editUserDisplayName = document.getElementById('editUserDisplayName');
    document.querySelectorAll('[data-edit-user]').forEach(function(btn) {
      btn.addEventListener('click', function() {
        var key = btn.dataset.editUser;
        var name = btn.dataset.displayName;
        currentEditKey = key;
        editUserDisplayName.value = name;
        editUserForm.action = endpoints.updateUser.replace('ACCESS_KEY', key);
        editUserModal.show();
      });
    });
  }
  function setupDeleteUserModal() {
    var deleteUserForm = document.getElementById('deleteUserForm');
    var deleteUserLabel = document.getElementById('deleteUserLabel');
    var deleteSelfWarning = document.getElementById('deleteSelfWarning');
    document.querySelectorAll('[data-delete-user]').forEach(function(btn) {
      btn.addEventListener('click', function() {
        var key = btn.dataset.deleteUser;
        currentDeleteKey = key;
        deleteUserLabel.textContent = key;
        deleteUserForm.action = endpoints.deleteUser.replace('ACCESS_KEY', key);
        if (key === currentUserKey) {
          deleteSelfWarning.classList.remove('d-none');
        } else {
          deleteSelfWarning.classList.add('d-none');
        }
        deleteUserModal.show();
      });
    });
  }
  function setupRotateSecretModal() {
    var rotateUserLabel = document.getElementById('rotateUserLabel');
    var confirmRotateBtn = document.getElementById('confirmRotateBtn');
    var rotateCancelBtn = document.getElementById('rotateCancelBtn');
    var rotateDoneBtn = document.getElementById('rotateDoneBtn');
    var rotateSecretConfirm = document.getElementById('rotateSecretConfirm');
    var rotateSecretResult = document.getElementById('rotateSecretResult');
    var newSecretKeyInput = document.getElementById('newSecretKey');
    var copyNewSecretBtn = document.getElementById('copyNewSecret');
    document.querySelectorAll('[data-rotate-user]').forEach(function(btn) {
      btn.addEventListener('click', function() {
        currentRotateKey = btn.dataset.rotateUser;
        rotateUserLabel.textContent = currentRotateKey;
        rotateSecretConfirm.classList.remove('d-none');
        rotateSecretResult.classList.add('d-none');
        confirmRotateBtn.classList.remove('d-none');
        rotateCancelBtn.classList.remove('d-none');
        rotateDoneBtn.classList.add('d-none');
        rotateSecretModal.show();
      });
    });
    if (confirmRotateBtn) {
      confirmRotateBtn.addEventListener('click', async function() {
        if (!currentRotateKey) return;
        window.UICore.setButtonLoading(confirmRotateBtn, true, 'Rotating...');
        try {
          var url = endpoints.rotateSecret.replace('ACCESS_KEY', currentRotateKey);
          var response = await fetch(url, {
            method: 'POST',
            headers: {
              'Accept': 'application/json',
              'X-CSRFToken': csrfToken
            }
          });
          if (!response.ok) {
            var data = await response.json();
            throw new Error(data.error || 'Failed to rotate secret');
          }
          var data = await response.json();
          newSecretKeyInput.value = data.secret_key;
          rotateSecretConfirm.classList.add('d-none');
          rotateSecretResult.classList.remove('d-none');
          confirmRotateBtn.classList.add('d-none');
          rotateCancelBtn.classList.add('d-none');
          rotateDoneBtn.classList.remove('d-none');
        } catch (err) {
          if (window.showToast) {
            window.showToast(err.message, 'Error', 'danger');
          }
          rotateSecretModal.hide();
        } finally {
          window.UICore.setButtonLoading(confirmRotateBtn, false);
        }
      });
    }
    if (copyNewSecretBtn) {
      copyNewSecretBtn.addEventListener('click', async function() {
        await window.UICore.copyToClipboard(newSecretKeyInput.value, copyNewSecretBtn, 'Copy');
      });
    }
    if (rotateDoneBtn) {
      rotateDoneBtn.addEventListener('click', function() {
        window.location.reload();
      });
    }
  }
  function createUserCardHtml(accessKey, displayName, policies) {
    var policyBadges = '';
    if (policies && policies.length > 0) {
      policyBadges = policies.map(function(p) {
        var actionText = p.actions && p.actions.includes('*') ? 'full' : (p.actions ? p.actions.length : 0);
        return '<span class="badge bg-primary bg-opacity-10 text-primary">' +
          '<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="currentColor" class="me-1" viewBox="0 0 16 16">' +
          '<path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>' +
          '</svg>' + window.UICore.escapeHtml(p.bucket) +
          '<span class="opacity-75">(' + actionText + ')</span></span>';
      }).join('');
    } else {
      policyBadges = '<span class="badge bg-secondary bg-opacity-10 text-secondary">No policies</span>';
    }
    return '<div class="col-md-6 col-xl-4">' +
      '<div class="card h-100 iam-user-card">' +
      '<div class="card-body">' +
      '<div class="d-flex align-items-start justify-content-between mb-3">' +
      '<div class="d-flex align-items-center gap-3 min-width-0 overflow-hidden">' +
      '<div class="user-avatar user-avatar-lg flex-shrink-0">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 16 16">' +
      '<path d="M8 8a3 3 0 1 0 0-6 3 3 0 0 0 0 6zm2-3a2 2 0 1 1-4 0 2 2 0 0 1 4 0zm4 8c0 1-1 1-1 1H3s-1 0-1-1 1-4 6-4 6 3 6 4zm-1-.004c-.001-.246-.154-.986-.832-1.664C11.516 10.68 10.289 10 8 10c-2.29 0-3.516.68-4.168 1.332-.678.678-.83 1.418-.832 1.664h10z"/>' +
      '</svg></div>' +
      '<div class="min-width-0">' +
      '<h6 class="fw-semibold mb-0 text-truncate" title="' + window.UICore.escapeHtml(displayName) + '">' + window.UICore.escapeHtml(displayName) + '</h6>' +
      '<code class="small text-muted d-block text-truncate" title="' + window.UICore.escapeHtml(accessKey) + '">' + window.UICore.escapeHtml(accessKey) + '</code>' +
      '</div></div>' +
      '<div class="dropdown flex-shrink-0">' +
      '<button class="btn btn-sm btn-icon" type="button" data-bs-toggle="dropdown" aria-expanded="false">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">' +
      '<path d="M9.5 13a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0zm0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0zm0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0z"/>' +
      '</svg></button>' +
      '<ul class="dropdown-menu dropdown-menu-end">' +
      '<li><button class="dropdown-item" type="button" data-edit-user="' + window.UICore.escapeHtml(accessKey) + '" data-display-name="' + window.UICore.escapeHtml(displayName) + '">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16"><path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5z"/></svg>Edit Name</button></li>' +
      '<li><button class="dropdown-item" type="button" data-rotate-user="' + window.UICore.escapeHtml(accessKey) + '">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16"><path d="M11.534 7h3.932a.25.25 0 0 1 .192.41l-1.966 2.36a.25.25 0 0 1-.384 0l-1.966-2.36a.25.25 0 0 1 .192-.41zm-11 2h3.932a.25.25 0 0 0 .192-.41L2.692 6.23a.25.25 0 0 0-.384 0L.342 8.59A.25.25 0 0 0 .534 9z"/><path fill-rule="evenodd" d="M8 3c-1.552 0-2.94.707-3.857 1.818a.5.5 0 1 1-.771-.636A6.002 6.002 0 0 1 13.917 7H12.9A5.002 5.002 0 0 0 8 3zM3.1 9a5.002 5.002 0 0 0 8.757 2.182.5.5 0 1 1 .771.636A6.002 6.002 0 0 1 2.083 9H3.1z"/></svg>Rotate Secret</button></li>' +
      '<li><hr class="dropdown-divider"></li>' +
      '<li><button class="dropdown-item text-danger" type="button" data-delete-user="' + window.UICore.escapeHtml(accessKey) + '">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16"><path d="M5.5 5.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm3 .5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 1 0z"/><path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/></svg>Delete User</button></li>' +
      '</ul></div></div>' +
      '<div class="mb-3">' +
      '<div class="small text-muted mb-2">Bucket Permissions</div>' +
      '<div class="d-flex flex-wrap gap-1">' + policyBadges + '</div></div>' +
      '<button class="btn btn-outline-primary btn-sm w-100" type="button" data-policy-editor data-access-key="' + window.UICore.escapeHtml(accessKey) + '">' +
      '<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16"><path d="M8 4.754a3.246 3.246 0 1 0 0 6.492 3.246 3.246 0 0 0 0-6.492zM5.754 8a2.246 2.246 0 1 1 4.492 0 2.246 2.246 0 0 1-4.492 0z"/><path d="M9.796 1.343c-.527-1.79-3.065-1.79-3.592 0l-.094.319a.873.873 0 0 1-1.255.52l-.292-.16c-1.64-.892-3.433.902-2.54 2.541l.159.292a.873.873 0 0 1-.52 1.255l-.319.094c-1.79.527-1.79 3.065 0 3.592l.319.094a.873.873 0 0 1 .52 1.255l-.16.292c-.892 1.64.901 3.434 2.541 2.54l.292-.159a.873.873 0 0 1 1.255.52l.094.319c.527 1.79 3.065 1.79 3.592 0l.094-.319a.873.873 0 0 1 1.255-.52l.292.16c1.64.893 3.434-.902 2.54-2.541l-.159-.292a.873.873 0 0 1 .52-1.255l.319-.094c1.79-.527 1.79-3.065 0-3.592l-.319-.094a.873.873 0 0 1-.52-1.255l.16-.292c.893-1.64-.902-3.433-2.541-2.54l-.292.159a.873.873 0 0 1-1.255-.52l-.094-.319z"/></svg>Manage Policies</button>' +
      '</div></div></div>';
  }
  function attachUserCardHandlers(cardElement, accessKey, displayName) {
    var editBtn = cardElement.querySelector('[data-edit-user]');
    if (editBtn) {
      editBtn.addEventListener('click', function() {
        currentEditKey = accessKey;
        document.getElementById('editUserDisplayName').value = displayName;
        document.getElementById('editUserForm').action = endpoints.updateUser.replace('ACCESS_KEY', accessKey);
        editUserModal.show();
      });
    }
    var deleteBtn = cardElement.querySelector('[data-delete-user]');
    if (deleteBtn) {
      deleteBtn.addEventListener('click', function() {
        currentDeleteKey = accessKey;
        document.getElementById('deleteUserLabel').textContent = accessKey;
        document.getElementById('deleteUserForm').action = endpoints.deleteUser.replace('ACCESS_KEY', accessKey);
        var deleteSelfWarning = document.getElementById('deleteSelfWarning');
        if (accessKey === currentUserKey) {
          deleteSelfWarning.classList.remove('d-none');
        } else {
          deleteSelfWarning.classList.add('d-none');
        }
        deleteUserModal.show();
      });
    }
    var rotateBtn = cardElement.querySelector('[data-rotate-user]');
    if (rotateBtn) {
      rotateBtn.addEventListener('click', function() {
        currentRotateKey = accessKey;
        document.getElementById('rotateUserLabel').textContent = accessKey;
        document.getElementById('rotateSecretConfirm').classList.remove('d-none');
        document.getElementById('rotateSecretResult').classList.add('d-none');
        document.getElementById('confirmRotateBtn').classList.remove('d-none');
        document.getElementById('rotateCancelBtn').classList.remove('d-none');
        document.getElementById('rotateDoneBtn').classList.add('d-none');
        rotateSecretModal.show();
      });
    }
    var policyBtn = cardElement.querySelector('[data-policy-editor]');
    if (policyBtn) {
      policyBtn.addEventListener('click', function() {
        document.getElementById('policyEditorUserLabel').textContent = accessKey;
        document.getElementById('policyEditorUser').value = accessKey;
        document.getElementById('policyEditorDocument').value = getUserPolicies(accessKey);
        policyModal.show();
      });
    }
  }
  function updateUserCount() {
    var countEl = document.querySelector('.card-header .text-muted.small');
    if (countEl) {
      var count = document.querySelectorAll('.iam-user-card').length;
      countEl.textContent = count + ' user' + (count !== 1 ? 's' : '') + ' configured';
    }
  }
  function setupFormHandlers() {
    var createUserForm = document.querySelector('#createUserModal form');
    if (createUserForm) {
      createUserForm.addEventListener('submit', function(e) {
        e.preventDefault();
        window.UICore.submitFormAjax(createUserForm, {
          successMessage: 'User created',
          onSuccess: function(data) {
            var modal = bootstrap.Modal.getInstance(document.getElementById('createUserModal'));
            if (modal) modal.hide();
            createUserForm.reset();
            var existingAlert = document.querySelector('.alert.alert-info.border-0.shadow-sm');
            if (existingAlert) existingAlert.remove();
            if (data.secret_key) {
              var alertHtml = '<div class="alert alert-info border-0 shadow-sm mb-4" role="alert" id="newUserSecretAlert">' +
                '<div class="d-flex align-items-start gap-2 mb-2">' +
                '<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-key flex-shrink-0 mt-1" viewBox="0 0 16 16">' +
                '<path d="M0 8a4 4 0 0 1 7.465-2H14a.5.5 0 0 1 .354.146l1.5 1.5a.5.5 0 0 1 0 .708l-1.5 1.5a.5.5 0 0 1-.708 0L13 9.207l-.646.647a.5.5 0 0 1-.708 0L11 9.207l-.646.647a.5.5 0 0 1-.708 0L9 9.207l-.646.647A.5.5 0 0 1 8 10h-.535A4 4 0 0 1 0 8zm4-3a3 3 0 1 0 2.712 4.285A.5.5 0 0 1 7.163 9h.63l.853-.854a.5.5 0 0 1 .708 0l.646.647.646-.647a.5.5 0 0 1 .708 0l.646.647.646-.647a.5.5 0 0 1 .708 0l.646.647.793-.793-1-1h-6.63a.5.5 0 0 1-.451-.285A3 3 0 0 0 4 5z"/><path d="M4 8a1 1 0 1 1-2 0 1 1 0 0 1 2 0z"/>' +
                '</svg>' +
                '<div class="flex-grow-1">' +
                '<div class="fw-semibold">New user created: <code>' + window.UICore.escapeHtml(data.access_key) + '</code></div>' +
                '<p class="mb-2 small">This secret is only shown once. Copy it now and store it securely.</p>' +
                '</div>' +
                '<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>' +
                '</div>' +
                '<div class="input-group">' +
                '<span class="input-group-text"><strong>Secret key</strong></span>' +
                '<input class="form-control font-monospace" type="text" value="' + window.UICore.escapeHtml(data.secret_key) + '" readonly id="newUserSecret" />' +
                '<button class="btn btn-outline-primary" type="button" id="copyNewUserSecret">Copy</button>' +
                '</div></div>';
              var container = document.querySelector('.page-header');
              if (container) {
                container.insertAdjacentHTML('afterend', alertHtml);
                document.getElementById('copyNewUserSecret').addEventListener('click', async function() {
                  await window.UICore.copyToClipboard(data.secret_key, this, 'Copy');
                });
              }
            }
            var usersGrid = document.querySelector('.row.g-3');
            var emptyState = document.querySelector('.empty-state');
            if (emptyState) {
              var emptyCol = emptyState.closest('.col-12');
              if (emptyCol) emptyCol.remove();
              if (!usersGrid) {
                var cardBody = document.querySelector('.card-body.px-4.pb-4');
                if (cardBody) {
                  cardBody.innerHTML = '<div class="row g-3"></div>';
                  usersGrid = cardBody.querySelector('.row.g-3');
                }
              }
            }
            if (usersGrid) {
              var cardHtml = createUserCardHtml(data.access_key, data.display_name, data.policies);
              usersGrid.insertAdjacentHTML('beforeend', cardHtml);
              var newCard = usersGrid.lastElementChild;
              attachUserCardHandlers(newCard, data.access_key, data.display_name);
              users.push({
                access_key: data.access_key,
                display_name: data.display_name,
                policies: data.policies || []
              });
              updateUserCount();
            }
          }
        });
      });
    }
    var policyEditorForm = document.getElementById('policyEditorForm');
    if (policyEditorForm) {
      policyEditorForm.addEventListener('submit', function(e) {
        e.preventDefault();
        var userInputEl = document.getElementById('policyEditorUser');
        var key = userInputEl.value;
        if (!key) return;
        var template = policyEditorForm.dataset.actionTemplate;
        policyEditorForm.action = template.replace('ACCESS_KEY_PLACEHOLDER', key);
        window.UICore.submitFormAjax(policyEditorForm, {
          successMessage: 'Policies updated',
          onSuccess: function(data) {
            policyModal.hide();
            var userCard = document.querySelector('[data-access-key="' + key + '"]');
            if (userCard) {
              var badgeContainer = userCard.closest('.iam-user-card').querySelector('.d-flex.flex-wrap.gap-1');
              if (badgeContainer && data.policies) {
                var badges = data.policies.map(function(p) {
                  return '<span class="badge bg-primary bg-opacity-10 text-primary">' +
                    '<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="currentColor" class="me-1" viewBox="0 0 16 16">' +
                    '<path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>' +
                    '</svg>' + window.UICore.escapeHtml(p.bucket) +
                    '<span class="opacity-75">(' + (p.actions.includes('*') ? 'full' : p.actions.length) + ')</span></span>';
                }).join('');
                badgeContainer.innerHTML = badges || '<span class="badge bg-secondary bg-opacity-10 text-secondary">No policies</span>';
              }
            }
            var userIndex = users.findIndex(function(u) { return u.access_key === key; });
            if (userIndex >= 0 && data.policies) {
              users[userIndex].policies = data.policies;
            }
          }
        });
      });
    }
    var editUserForm = document.getElementById('editUserForm');
    if (editUserForm) {
      editUserForm.addEventListener('submit', function(e) {
        e.preventDefault();
        var key = currentEditKey;
        window.UICore.submitFormAjax(editUserForm, {
          successMessage: 'User updated',
          onSuccess: function(data) {
            editUserModal.hide();
            var newName = data.display_name || document.getElementById('editUserDisplayName').value;
            var editBtn = document.querySelector('[data-edit-user="' + key + '"]');
            if (editBtn) {
              editBtn.setAttribute('data-display-name', newName);
              var card = editBtn.closest('.iam-user-card');
              if (card) {
                var nameEl = card.querySelector('h6');
                if (nameEl) {
                  nameEl.textContent = newName;
                  nameEl.title = newName;
                }
              }
            }
            var userIndex = users.findIndex(function(u) { return u.access_key === key; });
            if (userIndex >= 0) {
              users[userIndex].display_name = newName;
            }
            if (key === currentUserKey) {
              document.querySelectorAll('.sidebar-user .user-name').forEach(function(el) {
                var truncated = newName.length > 16 ? newName.substring(0, 16) + '...' : newName;
                el.textContent = truncated;
                el.title = newName;
              });
              document.querySelectorAll('.sidebar-user[data-username]').forEach(function(el) {
                el.setAttribute('data-username', newName);
              });
            }
          }
        });
      });
    }
    var deleteUserForm = document.getElementById('deleteUserForm');
    if (deleteUserForm) {
      deleteUserForm.addEventListener('submit', function(e) {
        e.preventDefault();
        var key = currentDeleteKey;
        window.UICore.submitFormAjax(deleteUserForm, {
          successMessage: 'User deleted',
          onSuccess: function(data) {
            deleteUserModal.hide();
            if (key === currentUserKey) {
              window.location.href = '/ui/';
              return;
            }
            var deleteBtn = document.querySelector('[data-delete-user="' + key + '"]');
            if (deleteBtn) {
              var cardCol = deleteBtn.closest('[class*="col-"]');
              if (cardCol) {
                cardCol.remove();
              }
            }
            users = users.filter(function(u) { return u.access_key !== key; });
            updateUserCount();
          }
        });
      });
    }
  }
  return {
    init: init
  };
 })();
--- a/static/js/ui-core.js
+++ b/static/js/ui-core.js
@@ -0,0 +1,324 @@
 window.UICore = (function() {
  'use strict';
  function getCsrfToken() {
    const meta = document.querySelector('meta[name="csrf-token"]');
    return meta ? meta.getAttribute('content') : '';
  }
  function formatBytes(bytes) {
    if (!Number.isFinite(bytes)) return bytes + ' bytes';
    const units = ['bytes', 'KB', 'MB', 'GB', 'TB'];
    let i = 0;
    let size = bytes;
    while (size >= 1024 && i < units.length - 1) {
      size /= 1024;
      i++;
    }
    return size.toFixed(i === 0 ? 0 : 1) + ' ' + units[i];
  }
  function escapeHtml(value) {
    if (value === null || value === undefined) return '';
    return String(value)
      .replace(/&/g, '&amp;')
      .replace(/</g, '&lt;')
      .replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;')
      .replace(/'/g, '&#039;');
  }
  async function submitFormAjax(form, options) {
    options = options || {};
    var onSuccess = options.onSuccess || function() {};
    var onError = options.onError || function() {};
    var successMessage = options.successMessage || 'Operation completed';
    var formData = new FormData(form);
    var csrfToken = getCsrfToken();
    var submitBtn = form.querySelector('[type="submit"]');
    var originalHtml = submitBtn ? submitBtn.innerHTML : '';
    try {
      if (submitBtn) {
        submitBtn.disabled = true;
        submitBtn.innerHTML = '<span class="spinner-border spinner-border-sm me-1"></span>Saving...';
      }
      var formAction = form.getAttribute('action') || form.action;
      var response = await fetch(formAction, {
        method: form.getAttribute('method') || 'POST',
        headers: {
          'X-CSRFToken': csrfToken,
          'Accept': 'application/json',
          'X-Requested-With': 'XMLHttpRequest'
        },
        body: formData,
        redirect: 'follow'
      });
      var contentType = response.headers.get('content-type') || '';
      if (!contentType.includes('application/json')) {
        throw new Error('Server returned an unexpected response. Please try again.');
      }
      var data = await response.json();
      if (!response.ok) {
        throw new Error(data.error || 'HTTP ' + response.status);
      }
      window.showToast(data.message || successMessage, 'Success', 'success');
      onSuccess(data);
    } catch (err) {
      window.showToast(err.message, 'Error', 'error');
      onError(err);
    } finally {
      if (submitBtn) {
        submitBtn.disabled = false;
        submitBtn.innerHTML = originalHtml;
      }
    }
  }
  function PollingManager() {
    this.intervals = {};
    this.callbacks = {};
    this.timers = {};
    this.defaults = {
      replication: 30000,
      lifecycle: 60000,
      connectionHealth: 60000,
      bucketStats: 120000
    };
    this._loadSettings();
  }
  PollingManager.prototype._loadSettings = function() {
    try {
      var stored = localStorage.getItem('myfsio-polling-intervals');
      if (stored) {
        var settings = JSON.parse(stored);
        for (var key in settings) {
          if (settings.hasOwnProperty(key)) {
            this.defaults[key] = settings[key];
          }
        }
      }
    } catch (e) {
      console.warn('Failed to load polling settings:', e);
    }
  };
  PollingManager.prototype.saveSettings = function(settings) {
    try {
      for (var key in settings) {
        if (settings.hasOwnProperty(key)) {
          this.defaults[key] = settings[key];
        }
      }
      localStorage.setItem('myfsio-polling-intervals', JSON.stringify(this.defaults));
    } catch (e) {
      console.warn('Failed to save polling settings:', e);
    }
  };
  PollingManager.prototype.start = function(key, callback, interval) {
    this.stop(key);
    var ms = interval !== undefined ? interval : (this.defaults[key] || 30000);
    if (ms <= 0) return;
    this.callbacks[key] = callback;
    this.intervals[key] = ms;
    callback();
    var self = this;
    this.timers[key] = setInterval(function() {
      if (!document.hidden) {
        callback();
      }
    }, ms);
  };
  PollingManager.prototype.stop = function(key) {
    if (this.timers[key]) {
      clearInterval(this.timers[key]);
      delete this.timers[key];
    }
  };
  PollingManager.prototype.stopAll = function() {
    for (var key in this.timers) {
      if (this.timers.hasOwnProperty(key)) {
        clearInterval(this.timers[key]);
      }
    }
    this.timers = {};
  };
  PollingManager.prototype.updateInterval = function(key, newInterval) {
    var callback = this.callbacks[key];
    this.defaults[key] = newInterval;
    this.saveSettings(this.defaults);
    if (callback) {
      this.start(key, callback, newInterval);
    }
  };
  PollingManager.prototype.getSettings = function() {
    var result = {};
    for (var key in this.defaults) {
      if (this.defaults.hasOwnProperty(key)) {
        result[key] = this.defaults[key];
      }
    }
    return result;
  };
  var pollingManager = new PollingManager();
  document.addEventListener('visibilitychange', function() {
    if (document.hidden) {
      pollingManager.stopAll();
    } else {
      for (var key in pollingManager.callbacks) {
        if (pollingManager.callbacks.hasOwnProperty(key)) {
          pollingManager.start(key, pollingManager.callbacks[key], pollingManager.intervals[key]);
        }
      }
    }
  });
  return {
    getCsrfToken: getCsrfToken,
    formatBytes: formatBytes,
    escapeHtml: escapeHtml,
    submitFormAjax: submitFormAjax,
    PollingManager: PollingManager,
    pollingManager: pollingManager
  };
 })();
 window.pollingManager = window.UICore.pollingManager;
 window.UICore.copyToClipboard = async function(text, button, originalText) {
  try {
    await navigator.clipboard.writeText(text);
    if (button) {
      var prevText = button.textContent;
      button.textContent = 'Copied!';
      setTimeout(function() {
        button.textContent = originalText || prevText;
      }, 1500);
    }
    return true;
  } catch (err) {
    console.error('Copy failed:', err);
    return false;
  }
 };
 window.UICore.setButtonLoading = function(button, isLoading, loadingText) {
  if (!button) return;
  if (isLoading) {
    button._originalHtml = button.innerHTML;
    button._originalDisabled = button.disabled;
    button.disabled = true;
    button.innerHTML = '<span class="spinner-border spinner-border-sm me-1"></span>' + (loadingText || 'Loading...');
  } else {
    button.disabled = button._originalDisabled || false;
    button.innerHTML = button._originalHtml || button.innerHTML;
  }
 };
 window.UICore.updateBadgeCount = function(selector, count, singular, plural) {
  var badge = document.querySelector(selector);
  if (badge) {
    var label = count === 1 ? (singular || '') : (plural || 's');
    badge.textContent = count + ' ' + label;
  }
 };
 window.UICore.setupJsonAutoIndent = function(textarea) {
  if (!textarea) return;
  textarea.addEventListener('keydown', function(e) {
    if (e.key === 'Enter') {
      e.preventDefault();
      var start = this.selectionStart;
      var end = this.selectionEnd;
      var value = this.value;
      var lineStart = value.lastIndexOf('\n', start - 1) + 1;
      var currentLine = value.substring(lineStart, start);
      var indentMatch = currentLine.match(/^(\s*)/);
      var indent = indentMatch ? indentMatch[1] : '';
      var trimmedLine = currentLine.trim();
      var lastChar = trimmedLine.slice(-1);
      var newIndent = indent;
      var insertAfter = '';
      if (lastChar === '{' || lastChar === '[') {
        newIndent = indent + '  ';
        var charAfterCursor = value.substring(start, start + 1).trim();
        if ((lastChar === '{' && charAfterCursor === '}') ||
            (lastChar === '[' && charAfterCursor === ']')) {
          insertAfter = '\n' + indent;
        }
      } else if (lastChar === ',' || lastChar === ':') {
        newIndent = indent;
      }
      var insertion = '\n' + newIndent + insertAfter;
      var newValue = value.substring(0, start) + insertion + value.substring(end);
      this.value = newValue;
      var newCursorPos = start + 1 + newIndent.length;
      this.selectionStart = this.selectionEnd = newCursorPos;
      this.dispatchEvent(new Event('input', { bubbles: true }));
    }
    if (e.key === 'Tab') {
      e.preventDefault();
      var start = this.selectionStart;
      var end = this.selectionEnd;
      if (e.shiftKey) {
        var lineStart = this.value.lastIndexOf('\n', start - 1) + 1;
        var lineContent = this.value.substring(lineStart, start);
        if (lineContent.startsWith('  ')) {
          this.value = this.value.substring(0, lineStart) +
                       this.value.substring(lineStart + 2);
          this.selectionStart = this.selectionEnd = Math.max(lineStart, start - 2);
        }
      } else {
        this.value = this.value.substring(0, start) + '  ' + this.value.substring(end);
        this.selectionStart = this.selectionEnd = start + 2;
      }
      this.dispatchEvent(new Event('input', { bubbles: true }));
    }
  });
 };
 document.addEventListener('DOMContentLoaded', function() {
  var flashMessage = sessionStorage.getItem('flashMessage');
  if (flashMessage) {
    sessionStorage.removeItem('flashMessage');
    try {
      var msg = JSON.parse(flashMessage);
      if (window.showToast) {
        window.showToast(msg.body || msg.title, msg.title, msg.variant || 'info');
      }
    } catch (e) {}
  }
 });
--- a/templates/base.html
+++ b/templates/base.html
@@ -5,8 +5,8 @@
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    {% if principal %}<meta name="csrf-token" content="{{ csrf_token() }}" />{% endif %}
    <title>MyFSIO Console</title>
-    <link rel="icon" type="image/png" href="{{ url_for('static', filename='images/MyFISO.png') }}" />
+    <link rel="icon" type="image/png" href="{{ url_for('static', filename='images/MyFSIO.png') }}" />
-    <link rel="icon" type="image/x-icon" href="{{ url_for('static', filename='images/MyFISO.ico') }}" />
+    <link rel="icon" type="image/x-icon" href="{{ url_for('static', filename='images/MyFSIO.ico') }}" />
    <link
      href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css"
      rel="stylesheet"
@@ -24,105 +24,218 @@
          document.documentElement.dataset.bsTheme = 'light';
          document.documentElement.dataset.theme = 'light';
        }
        try {
          if (localStorage.getItem('myfsio-sidebar-collapsed') === 'true') {
            document.documentElement.classList.add('sidebar-will-collapse');
          }
        } catch (err) {}
      })();
    </script>
    <link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}" />
  </head>
  <body>
-    <nav class="navbar navbar-expand-lg myfsio-nav shadow-sm">
+    <header class="mobile-header d-lg-none">
-      <div class="container-fluid">
+      <button class="sidebar-toggle-btn" type="button" data-bs-toggle="offcanvas" data-bs-target="#mobileSidebar" aria-controls="mobileSidebar" aria-label="Toggle navigation">
-        <a class="navbar-brand fw-semibold" href="{{ url_for('ui.buckets_overview') }}">
+        <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 16 16">
-          <img
+          <path fill-rule="evenodd" d="M2.5 12a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm0-4a.5.5 0 0 1 .5-.5h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5z"/>
            src="{{ url_for('static', filename='images/MyFISO.png') }}"
            alt="MyFSIO logo"
            class="myfsio-logo"
            width="32"
            height="32"
            decoding="async"
          />
          <span class="myfsio-title">MyFSIO</span>
        </a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navContent" aria-controls="navContent" aria-expanded="false" aria-label="Toggle navigation">
          <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navContent">
          <ul class="navbar-nav me-auto mb-2 mb-lg-0">
            {% if principal %}
            <li class="nav-item">
              <a class="nav-link" href="{{ url_for('ui.buckets_overview') }}">Buckets</a>
            </li>
            {% if can_manage_iam %}
            <li class="nav-item">
              <a class="nav-link" href="{{ url_for('ui.iam_dashboard') }}">IAM</a>
            </li>
            <li class="nav-item">
              <a class="nav-link" href="{{ url_for('ui.connections_dashboard') }}">Connections</a>
            </li>
            <li class="nav-item">
              <a class="nav-link" href="{{ url_for('ui.metrics_dashboard') }}">Metrics</a>
            </li>
            {% endif %}
            {% endif %}
            {% if principal %}
            <li class="nav-item">
              <a class="nav-link" href="{{ url_for('ui.docs_page') }}">Docs</a>
            </li>
            {% endif %}
          </ul>
          <div class="ms-lg-auto d-flex align-items-center gap-3 text-light flex-wrap">
            <button
              class="btn btn-outline-light btn-sm theme-toggle"
              type="button"
              id="themeToggle"
              aria-pressed="false"
              aria-label="Toggle dark mode"
            >
              <span id="themeToggleLabel" class="visually-hidden">Toggle dark mode</span>
              <svg
                xmlns="http://www.w3.org/2000/svg"
                width="16"
                height="16"
                fill="currentColor"
                class="theme-icon"
                id="themeToggleSun"
                viewBox="0 0 16 16"
                aria-hidden="true"
              >
                <path
                  d="M8 11.5a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7zm0 1.5a5 5 0 1 0 0-10 5 5 0 0 0 0 10zM8 0a.5.5 0 0 1 .5.5v1.555a.5.5 0 0 1-1 0V.5A.5.5 0 0 1 8 0zm0 12.945a.5.5 0 0 1 .5.5v2.055a.5.5 0 0 1-1 0v-2.055a.5.5 0 0 1 .5-.5zM2.343 2.343a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.708.707l-1.1-1.1a.5.5 0 0 1 0-.707zm9.507 9.507a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.707.708l-1.1-1.1a.5.5 0 0 1 0-.708zM0 8a.5.5 0 0 1 .5-.5h1.555a.5.5 0 0 1 0 1H.5A.5.5 0 0 1 0 8zm12.945 0a.5.5 0 0 1 .5-.5H15.5a.5.5 0 0 1 0 1h-2.055a.5.5 0 0 1-.5-.5zM2.343 13.657a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 1 1 .708.707l-1.1 1.1a.5.5 0 0 1-.708 0zm9.507-9.507a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 0 1 .707.708l-1.1 1.1a.5.5 0 0 1-.707 0z"
                />
        </svg>
-              <svg
+      </button>
-                xmlns="http://www.w3.org/2000/svg"
+      <a class="mobile-brand" href="{{ url_for('ui.buckets_overview') }}">
-                width="16"
+        <img src="{{ url_for('static', filename='images/MyFSIO.png') }}" alt="MyFSIO logo" width="28" height="28" />
-                height="16"
+        <span>MyFSIO</span>
-                fill="currentColor"
+      </a>
-                class="theme-icon d-none"
+      <button class="theme-toggle-mobile" type="button" id="themeToggleMobile" aria-label="Toggle dark mode">
-                id="themeToggleMoon"
+        <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="theme-icon-mobile" id="themeToggleSunMobile" viewBox="0 0 16 16">
-                viewBox="0 0 16 16"
+          <path d="M8 11.5a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7zm0 1.5a5 5 0 1 0 0-10 5 5 0 0 0 0 10zM8 0a.5.5 0 0 1 .5.5v1.555a.5.5 0 0 1-1 0V.5A.5.5 0 0 1 8 0zm0 12.945a.5.5 0 0 1 .5.5v2.055a.5.5 0 0 1-1 0v-2.055a.5.5 0 0 1 .5-.5zM2.343 2.343a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.708.707l-1.1-1.1a.5.5 0 0 1 0-.707zm9.507 9.507a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.707.708l-1.1-1.1a.5.5 0 0 1 0-.708zM0 8a.5.5 0 0 1 .5-.5h1.555a.5.5 0 0 1 0 1H.5A.5.5 0 0 1 0 8zm12.945 0a.5.5 0 0 1 .5-.5H15.5a.5.5 0 0 1 0 1h-2.055a.5.5 0 0 1-.5-.5zM2.343 13.657a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 1 1 .708.707l-1.1 1.1a.5.5 0 0 1-.708 0zm9.507-9.507a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 0 1 .707.708l-1.1 1.1a.5.5 0 0 1-.707 0z"/>
-                aria-hidden="true"
+        </svg>
-              >
+        <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="theme-icon-mobile" id="themeToggleMoonMobile" viewBox="0 0 16 16">
          <path d="M6 .278a.768.768 0 0 1 .08.858 7.208 7.208 0 0 0-.878 3.46c0 4.021 3.278 7.277 7.318 7.277.527 0 1.04-.055 1.533-.16a.787.787 0 0 1 .81.316.733.733 0 0 1-.031.893A8.349 8.349 0 0 1 8.344 16C3.734 16 0 12.286 0 7.71 0 4.266 2.114 1.312 5.124.06A.752.752 0 0 1 6 .278z"/>
          <path d="M10.794 3.148a.217.217 0 0 1 .412 0l.387 1.162c.173.518.579.924 1.097 1.097l1.162.387a.217.217 0 0 1 0 .412l-1.162.387a1.734 1.734 0 0 0-1.097 1.097l-.387 1.162a.217.217 0 0 1-.412 0l-.387-1.162A1.734 1.734 0 0 0 9.31 6.593l-1.162-.387a.217.217 0 0 1 0-.412l1.162-.387a1.734 1.734 0 0 0 1.097-1.097l.387-1.162zM13.863.099a.145.145 0 0 1 .274 0l.258.774c.115.346.386.617.732.732l.774.258a.145.145 0 0 1 0 .274l-.774.258a1.156 1.156 0 0 0-.732.732l-.258.774a.145.145 0 0 1-.274 0l-.258-.774a1.156 1.156 0 0 0-.732-.732l-.774-.258a.145.145 0 0 1 0-.274l.774-.258c.346-.115.617-.386.732-.732L13.863.1z"/>
        </svg>
      </button>
-            {% if principal %}
+    </header>
-            <div class="text-end small">
+
-              <div class="fw-semibold" title="{{ principal.display_name }}">{{ principal.display_name | truncate(20, true) }}</div>
+    <div class="offcanvas offcanvas-start sidebar-offcanvas" tabindex="-1" id="mobileSidebar" aria-labelledby="mobileSidebarLabel">
-              <div class="opacity-75">{{ principal.access_key }}</div>
+      <div class="offcanvas-header sidebar-header">
        <a class="sidebar-brand" href="{{ url_for('ui.buckets_overview') }}">
          <img src="{{ url_for('static', filename='images/MyFSIO.png') }}" alt="MyFSIO logo" class="sidebar-logo" width="36" height="36" />
          <span class="sidebar-title">MyFSIO</span>
        </a>
        <button type="button" class="btn-close btn-close-white" data-bs-dismiss="offcanvas" aria-label="Close"></button>
      </div>
-            <form method="post" action="{{ url_for('ui.logout') }}">
+      <div class="offcanvas-body sidebar-body">
        <nav class="sidebar-nav">
          {% if principal %}
          <div class="nav-section">
            <span class="nav-section-title">Navigation</span>
            <a href="{{ url_for('ui.buckets_overview') }}" class="sidebar-link {% if request.endpoint == 'ui.buckets_overview' or request.endpoint == 'ui.bucket_detail' %}active{% endif %}">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>
              </svg>
              <span>Buckets</span>
            </a>
            {% if can_manage_iam %}
            <a href="{{ url_for('ui.iam_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.iam_dashboard' %}active{% endif %}">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M15 14s1 0 1-1-1-4-5-4-5 3-5 4 1 1 1 1h8zm-7.978-1A.261.261 0 0 1 7 12.996c.001-.264.167-1.03.76-1.72C8.312 10.629 9.282 10 11 10c1.717 0 2.687.63 3.24 1.276.593.69.758 1.457.76 1.72l-.008.002a.274.274 0 0 1-.014.002H7.022zM11 7a2 2 0 1 0 0-4 2 2 0 0 0 0 4zm3-2a3 3 0 1 1-6 0 3 3 0 0 1 6 0zM6.936 9.28a5.88 5.88 0 0 0-1.23-.247A7.35 7.35 0 0 0 5 9c-4 0-5 3-5 4 0 .667.333 1 1 1h4.216A2.238 2.238 0 0 1 5 13c0-1.01.377-2.042 1.09-2.904.243-.294.526-.569.846-.816zM4.92 10A5.493 5.493 0 0 0 4 13H1c0-.26.164-1.03.76-1.724.545-.636 1.492-1.256 3.16-1.275zM1.5 5.5a3 3 0 1 1 6 0 3 3 0 0 1-6 0zm3-2a2 2 0 1 0 0 4 2 2 0 0 0 0-4z"/>
              </svg>
              <span>IAM</span>
            </a>
            <a href="{{ url_for('ui.connections_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.connections_dashboard' %}active{% endif %}">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path fill-rule="evenodd" d="M6 3.5A1.5 1.5 0 0 1 7.5 2h1A1.5 1.5 0 0 1 10 3.5v1A1.5 1.5 0 0 1 8.5 6v1H14a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-1 0V8h-5v.5a.5.5 0 0 1-1 0V8h-5v.5a.5.5 0 0 1-1 0v-1A.5.5 0 0 1 2 7h5.5V6A1.5 1.5 0 0 1 6 4.5v-1zM8.5 5a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1zM0 11.5A1.5 1.5 0 0 1 1.5 10h1A1.5 1.5 0 0 1 4 11.5v1A1.5 1.5 0 0 1 2.5 14h-1A1.5 1.5 0 0 1 0 12.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1zm4.5.5A1.5 1.5 0 0 1 7.5 10h1a1.5 1.5 0 0 1 1.5 1.5v1A1.5 1.5 0 0 1 8.5 14h-1A1.5 1.5 0 0 1 6 12.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1zm4.5.5a1.5 1.5 0 0 1 1.5-1.5h1a1.5 1.5 0 0 1 1.5 1.5v1a1.5 1.5 0 0 1-1.5 1.5h-1a1.5 1.5 0 0 1-1.5-1.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1z"/>
              </svg>
              <span>Connections</span>
            </a>
            <a href="{{ url_for('ui.metrics_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.metrics_dashboard' %}active{% endif %}">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M8 4a.5.5 0 0 1 .5.5V6a.5.5 0 0 1-1 0V4.5A.5.5 0 0 1 8 4zM3.732 5.732a.5.5 0 0 1 .707 0l.915.914a.5.5 0 1 1-.708.708l-.914-.915a.5.5 0 0 1 0-.707zM2 10a.5.5 0 0 1 .5-.5h1.586a.5.5 0 0 1 0 1H2.5A.5.5 0 0 1 2 10zm9.5 0a.5.5 0 0 1 .5-.5h1.5a.5.5 0 0 1 0 1H12a.5.5 0 0 1-.5-.5zm.754-4.246a.389.389 0 0 0-.527-.02L7.547 9.31a.91.91 0 1 0 1.302 1.258l3.434-4.297a.389.389 0 0 0-.029-.518z"/>
                <path fill-rule="evenodd" d="M0 10a8 8 0 1 1 15.547 2.661c-.442 1.253-1.845 1.602-2.932 1.25C11.309 13.488 9.475 13 8 13c-1.474 0-3.31.488-4.615.911-1.087.352-2.49.003-2.932-1.25A7.988 7.988 0 0 1 0 10zm8-7a7 7 0 0 0-6.603 9.329c.203.575.923.876 1.68.63C4.397 12.533 6.358 12 8 12s3.604.532 4.923.96c.757.245 1.477-.056 1.68-.631A7 7 0 0 0 8 3z"/>
              </svg>
              <span>Metrics</span>
            </a>
            {% endif %}
          </div>
          <div class="nav-section">
            <span class="nav-section-title">Resources</span>
            <a href="{{ url_for('ui.docs_page') }}" class="sidebar-link {% if request.endpoint == 'ui.docs_page' %}active{% endif %}">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"/>
              </svg>
              <span>Documentation</span>
            </a>
          </div>
          {% endif %}
        </nav>
        {% if principal %}
        <div class="sidebar-footer">
          <div class="sidebar-user">
            <div class="user-avatar">
              <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
                <path d="M11 6a3 3 0 1 1-6 0 3 3 0 0 1 6 0z"/>
                <path fill-rule="evenodd" d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8zm8-7a7 7 0 0 0-5.468 11.37C3.242 11.226 4.805 10 8 10s4.757 1.225 5.468 2.37A7 7 0 0 0 8 1z"/>
              </svg>
            </div>
            <div class="user-info">
              <div class="user-name" title="{{ principal.display_name }}">{{ principal.display_name | truncate(16, true) }}</div>
              <div class="user-key">{{ principal.access_key | truncate(12, true) }}</div>
            </div>
          </div>
          <form method="post" action="{{ url_for('ui.logout') }}" class="w-100">
            <input type="hidden" name="csrf_token" value="{{ csrf_token() }}" />
-              <button class="btn btn-outline-light btn-sm" type="submit">Sign out</button>
+            <button class="sidebar-logout-btn" type="submit">
              <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
                <path fill-rule="evenodd" d="M10 12.5a.5.5 0 0 1-.5.5h-8a.5.5 0 0 1-.5-.5v-9a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 .5.5v2a.5.5 0 0 0 1 0v-2A1.5 1.5 0 0 0 9.5 2h-8A1.5 1.5 0 0 0 0 3.5v9A1.5 1.5 0 0 0 1.5 14h8a1.5 1.5 0 0 0 1.5-1.5v-2a.5.5 0 0 0-1 0v2z"/>
                <path fill-rule="evenodd" d="M15.854 8.354a.5.5 0 0 0 0-.708l-3-3a.5.5 0 0 0-.708.708L14.293 7.5H5.5a.5.5 0 0 0 0 1h8.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3z"/>
              </svg>
              <span>Sign out</span>
            </button>
          </form>
        </div>
        {% endif %}
      </div>
    </div>
    <aside class="sidebar d-none d-lg-flex" id="desktopSidebar">
      <div class="sidebar-header">
        <div class="sidebar-brand" id="sidebarBrand">
          <img src="{{ url_for('static', filename='images/MyFSIO.png') }}" alt="MyFSIO logo" class="sidebar-logo" width="36" height="36" />
          <span class="sidebar-title">MyFSIO</span>
        </div>
        <button class="sidebar-collapse-btn" type="button" id="sidebarCollapseBtn" aria-label="Collapse sidebar">
          <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
            <path fill-rule="evenodd" d="M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z"/>
          </svg>
        </button>
      </div>
      <div class="sidebar-body">
        <nav class="sidebar-nav">
          {% if principal %}
          <div class="nav-section">
            <span class="nav-section-title">Navigation</span>
            <a href="{{ url_for('ui.buckets_overview') }}" class="sidebar-link {% if request.endpoint == 'ui.buckets_overview' or request.endpoint == 'ui.bucket_detail' %}active{% endif %}" data-tooltip="Buckets">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>
              </svg>
              <span class="sidebar-link-text">Buckets</span>
            </a>
            {% if can_manage_iam %}
            <a href="{{ url_for('ui.iam_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.iam_dashboard' %}active{% endif %}" data-tooltip="IAM">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M15 14s1 0 1-1-1-4-5-4-5 3-5 4 1 1 1 1h8zm-7.978-1A.261.261 0 0 1 7 12.996c.001-.264.167-1.03.76-1.72C8.312 10.629 9.282 10 11 10c1.717 0 2.687.63 3.24 1.276.593.69.758 1.457.76 1.72l-.008.002a.274.274 0 0 1-.014.002H7.022zM11 7a2 2 0 1 0 0-4 2 2 0 0 0 0 4zm3-2a3 3 0 1 1-6 0 3 3 0 0 1 6 0zM6.936 9.28a5.88 5.88 0 0 0-1.23-.247A7.35 7.35 0 0 0 5 9c-4 0-5 3-5 4 0 .667.333 1 1 1h4.216A2.238 2.238 0 0 1 5 13c0-1.01.377-2.042 1.09-2.904.243-.294.526-.569.846-.816zM4.92 10A5.493 5.493 0 0 0 4 13H1c0-.26.164-1.03.76-1.724.545-.636 1.492-1.256 3.16-1.275zM1.5 5.5a3 3 0 1 1 6 0 3 3 0 0 1-6 0zm3-2a2 2 0 1 0 0 4 2 2 0 0 0 0-4z"/>
              </svg>
              <span class="sidebar-link-text">IAM</span>
            </a>
            <a href="{{ url_for('ui.connections_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.connections_dashboard' %}active{% endif %}" data-tooltip="Connections">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path fill-rule="evenodd" d="M6 3.5A1.5 1.5 0 0 1 7.5 2h1A1.5 1.5 0 0 1 10 3.5v1A1.5 1.5 0 0 1 8.5 6v1H14a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-1 0V8h-5v.5a.5.5 0 0 1-1 0V8h-5v.5a.5.5 0 0 1-1 0v-1A.5.5 0 0 1 2 7h5.5V6A1.5 1.5 0 0 1 6 4.5v-1zM8.5 5a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1zM0 11.5A1.5 1.5 0 0 1 1.5 10h1A1.5 1.5 0 0 1 4 11.5v1A1.5 1.5 0 0 1 2.5 14h-1A1.5 1.5 0 0 1 0 12.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1zm4.5.5A1.5 1.5 0 0 1 7.5 10h1a1.5 1.5 0 0 1 1.5 1.5v1A1.5 1.5 0 0 1 8.5 14h-1A1.5 1.5 0 0 1 6 12.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1zm4.5.5a1.5 1.5 0 0 1 1.5-1.5h1a1.5 1.5 0 0 1 1.5 1.5v1a1.5 1.5 0 0 1-1.5 1.5h-1a1.5 1.5 0 0 1-1.5-1.5v-1zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5h-1z"/>
              </svg>
              <span class="sidebar-link-text">Connections</span>
            </a>
            <a href="{{ url_for('ui.metrics_dashboard') }}" class="sidebar-link {% if request.endpoint == 'ui.metrics_dashboard' %}active{% endif %}" data-tooltip="Metrics">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M8 4a.5.5 0 0 1 .5.5V6a.5.5 0 0 1-1 0V4.5A.5.5 0 0 1 8 4zM3.732 5.732a.5.5 0 0 1 .707 0l.915.914a.5.5 0 1 1-.708.708l-.914-.915a.5.5 0 0 1 0-.707zM2 10a.5.5 0 0 1 .5-.5h1.586a.5.5 0 0 1 0 1H2.5A.5.5 0 0 1 2 10zm9.5 0a.5.5 0 0 1 .5-.5h1.5a.5.5 0 0 1 0 1H12a.5.5 0 0 1-.5-.5zm.754-4.246a.389.389 0 0 0-.527-.02L7.547 9.31a.91.91 0 1 0 1.302 1.258l3.434-4.297a.389.389 0 0 0-.029-.518z"/>
                <path fill-rule="evenodd" d="M0 10a8 8 0 1 1 15.547 2.661c-.442 1.253-1.845 1.602-2.932 1.25C11.309 13.488 9.475 13 8 13c-1.474 0-3.31.488-4.615.911-1.087.352-2.49.003-2.932-1.25A7.988 7.988 0 0 1 0 10zm8-7a7 7 0 0 0-6.603 9.329c.203.575.923.876 1.68.63C4.397 12.533 6.358 12 8 12s3.604.532 4.923.96c.757.245 1.477-.056 1.68-.631A7 7 0 0 0 8 3z"/>
              </svg>
              <span class="sidebar-link-text">Metrics</span>
            </a>
            {% endif %}
          </div>
          <div class="nav-section">
            <span class="nav-section-title">Resources</span>
            <a href="{{ url_for('ui.docs_page') }}" class="sidebar-link {% if request.endpoint == 'ui.docs_page' %}active{% endif %}" data-tooltip="Documentation">
              <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" viewBox="0 0 16 16">
                <path d="M1 2.828c.885-.37 2.154-.769 3.388-.893 1.33-.134 2.458.063 3.112.752v9.746c-.935-.53-2.12-.603-3.213-.493-1.18.12-2.37.461-3.287.811V2.828zm7.5-.141c.654-.689 1.782-.886 3.112-.752 1.234.124 2.503.523 3.388.893v9.923c-.918-.35-2.107-.692-3.287-.81-1.094-.111-2.278-.039-3.213.492V2.687zM8 1.783C7.015.936 5.587.81 4.287.94c-1.514.153-3.042.672-3.994 1.105A.5.5 0 0 0 0 2.5v11a.5.5 0 0 0 .707.455c.882-.4 2.303-.881 3.68-1.02 1.409-.142 2.59.087 3.223.877a.5.5 0 0 0 .78 0c.633-.79 1.814-1.019 3.222-.877 1.378.139 2.8.62 3.681 1.02A.5.5 0 0 0 16 13.5v-11a.5.5 0 0 0-.293-.455c-.952-.433-2.48-.952-3.994-1.105C10.413.809 8.985.936 8 1.783z"/>
              </svg>
              <span class="sidebar-link-text">Documentation</span>
            </a>
          </div>
          {% endif %}
        </nav>
-    <main class="container py-4">
+      </div>
      <div class="sidebar-footer">
        <button class="theme-toggle-sidebar" type="button" id="themeToggle" aria-label="Toggle dark mode">
          <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="theme-icon" id="themeToggleSun" viewBox="0 0 16 16">
            <path d="M8 11.5a3.5 3.5 0 1 1 0-7 3.5 3.5 0 0 1 0 7zm0 1.5a5 5 0 1 0 0-10 5 5 0 0 0 0 10zM8 0a.5.5 0 0 1 .5.5v1.555a.5.5 0 0 1-1 0V.5A.5.5 0 0 1 8 0zm0 12.945a.5.5 0 0 1 .5.5v2.055a.5.5 0 0 1-1 0v-2.055a.5.5 0 0 1 .5-.5zM2.343 2.343a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.708.707l-1.1-1.1a.5.5 0 0 1 0-.707zm9.507 9.507a.5.5 0 0 1 .707 0l1.1 1.1a.5.5 0 1 1-.707.708l-1.1-1.1a.5.5 0 0 1 0-.708zM0 8a.5.5 0 0 1 .5-.5h1.555a.5.5 0 0 1 0 1H.5A.5.5 0 0 1 0 8zm12.945 0a.5.5 0 0 1 .5-.5H15.5a.5.5 0 0 1 0 1h-2.055a.5.5 0 0 1-.5-.5zM2.343 13.657a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 1 1 .708.707l-1.1 1.1a.5.5 0 0 1-.708 0zm9.507-9.507a.5.5 0 0 1 0-.707l1.1-1.1a.5.5 0 0 1 .707.708l-1.1 1.1a.5.5 0 0 1-.707 0z"/>
          </svg>
          <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="theme-icon" id="themeToggleMoon" viewBox="0 0 16 16">
            <path d="M6 .278a.768.768 0 0 1 .08.858 7.208 7.208 0 0 0-.878 3.46c0 4.021 3.278 7.277 7.318 7.277.527 0 1.04-.055 1.533-.16a.787.787 0 0 1 .81.316.733.733 0 0 1-.031.893A8.349 8.349 0 0 1 8.344 16C3.734 16 0 12.286 0 7.71 0 4.266 2.114 1.312 5.124.06A.752.752 0 0 1 6 .278z"/>
            <path d="M10.794 3.148a.217.217 0 0 1 .412 0l.387 1.162c.173.518.579.924 1.097 1.097l1.162.387a.217.217 0 0 1 0 .412l-1.162.387a1.734 1.734 0 0 0-1.097 1.097l-.387 1.162a.217.217 0 0 1-.412 0l-.387-1.162A1.734 1.734 0 0 0 9.31 6.593l-1.162-.387a.217.217 0 0 1 0-.412l1.162-.387a1.734 1.734 0 0 0 1.097-1.097l.387-1.162zM13.863.099a.145.145 0 0 1 .274 0l.258.774c.115.346.386.617.732.732l.774.258a.145.145 0 0 1 0 .274l-.774.258a1.156 1.156 0 0 0-.732.732l-.258.774a.145.145 0 0 1-.274 0l-.258-.774a1.156 1.156 0 0 0-.732-.732l-.774-.258a.145.145 0 0 1 0-.274l.774-.258c.346-.115.617-.386.732-.732L13.863.1z"/>
          </svg>
          <span class="theme-toggle-text">Toggle theme</span>
        </button>
        {% if principal %}
        <div class="sidebar-user" data-username="{{ principal.display_name }}">
          <div class="user-avatar">
            <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
              <path d="M11 6a3 3 0 1 1-6 0 3 3 0 0 1 6 0z"/>
              <path fill-rule="evenodd" d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8zm8-7a7 7 0 0 0-5.468 11.37C3.242 11.226 4.805 10 8 10s4.757 1.225 5.468 2.37A7 7 0 0 0 8 1z"/>
            </svg>
          </div>
          <div class="user-info">
            <div class="user-name" title="{{ principal.display_name }}">{{ principal.display_name | truncate(16, true) }}</div>
            <div class="user-key">{{ principal.access_key | truncate(12, true) }}</div>
          </div>
        </div>
        <form method="post" action="{{ url_for('ui.logout') }}" class="w-100">
          <input type="hidden" name="csrf_token" value="{{ csrf_token() }}" />
          <button class="sidebar-logout-btn" type="submit">
            <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
              <path fill-rule="evenodd" d="M10 12.5a.5.5 0 0 1-.5.5h-8a.5.5 0 0 1-.5-.5v-9a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 .5.5v2a.5.5 0 0 0 1 0v-2A1.5 1.5 0 0 0 9.5 2h-8A1.5 1.5 0 0 0 0 3.5v9A1.5 1.5 0 0 0 1.5 14h8a1.5 1.5 0 0 0 1.5-1.5v-2a.5.5 0 0 0-1 0v2z"/>
              <path fill-rule="evenodd" d="M15.854 8.354a.5.5 0 0 0 0-.708l-3-3a.5.5 0 0 0-.708.708L14.293 7.5H5.5a.5.5 0 0 0 0 1h8.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3z"/>
            </svg>
            <span class="logout-text">Sign out</span>
          </button>
        </form>
        {% endif %}
      </div>
    </aside>
    <div class="main-wrapper">
      <main class="main-content">
        {% block content %}{% endblock %}
      </main>
    </div>
    <div class="toast-container position-fixed bottom-0 end-0 p-3">
      <div id="liveToast" class="toast" role="alert" aria-live="assertive" aria-atomic="true">
        <div class="toast-header">
@@ -162,9 +275,11 @@
      (function () {
        const storageKey = 'myfsio-theme';
        const toggle = document.getElementById('themeToggle');
-        const label = document.getElementById('themeToggleLabel');
+        const toggleMobile = document.getElementById('themeToggleMobile');
        const sunIcon = document.getElementById('themeToggleSun');
        const moonIcon = document.getElementById('themeToggleMoon');
        const sunIconMobile = document.getElementById('themeToggleSunMobile');
        const moonIconMobile = document.getElementById('themeToggleMoonMobile');
        const applyTheme = (theme) => {
          document.documentElement.dataset.bsTheme = theme;
@@ -172,29 +287,74 @@
          try {
            localStorage.setItem(storageKey, theme);
          } catch (err) {
-            /* localStorage unavailable */
+            console.log("Error: local storage not available, cannot save theme preference.");
          }
          if (label) {
            label.textContent = theme === 'dark' ? 'Switch to light mode' : 'Switch to dark mode';
          }
          if (toggle) {
            toggle.setAttribute('aria-pressed', theme === 'dark' ? 'true' : 'false');
            toggle.setAttribute('title', theme === 'dark' ? 'Switch to light mode' : 'Switch to dark mode');
            toggle.setAttribute('aria-label', theme === 'dark' ? 'Switch to light mode' : 'Switch to dark mode');
          }
          if (sunIcon && moonIcon) {
          const isDark = theme === 'dark';
          if (sunIcon && moonIcon) {
            sunIcon.classList.toggle('d-none', !isDark);
            moonIcon.classList.toggle('d-none', isDark);
          }
          if (sunIconMobile && moonIconMobile) {
            sunIconMobile.classList.toggle('d-none', !isDark);
            moonIconMobile.classList.toggle('d-none', isDark);
          }
          [toggle, toggleMobile].forEach(btn => {
            if (btn) {
              btn.setAttribute('aria-pressed', isDark ? 'true' : 'false');
              btn.setAttribute('title', isDark ? 'Switch to light mode' : 'Switch to dark mode');
              btn.setAttribute('aria-label', isDark ? 'Switch to light mode' : 'Switch to dark mode');
            }
          });
        };
        const current = document.documentElement.dataset.bsTheme || 'light';
        applyTheme(current);
-        toggle?.addEventListener('click', () => {
+        const handleToggle = () => {
          const next = document.documentElement.dataset.bsTheme === 'dark' ? 'light' : 'dark';
          applyTheme(next);
        };
        toggle?.addEventListener('click', handleToggle);
        toggleMobile?.addEventListener('click', handleToggle);
      })();
    </script>
    <script>
      (function () {
        const sidebar = document.getElementById('desktopSidebar');
        const collapseBtn = document.getElementById('sidebarCollapseBtn');
        const sidebarBrand = document.getElementById('sidebarBrand');
        const storageKey = 'myfsio-sidebar-collapsed';
        if (!sidebar || !collapseBtn) return;
        const applyCollapsed = (collapsed) => {
          sidebar.classList.toggle('sidebar-collapsed', collapsed);
          document.body.classList.toggle('sidebar-is-collapsed', collapsed);
          document.documentElement.classList.remove('sidebar-will-collapse');
          try {
            localStorage.setItem(storageKey, collapsed ? 'true' : 'false');
          } catch (err) {}
        };
        try {
          const stored = localStorage.getItem(storageKey);
          applyCollapsed(stored === 'true');
        } catch (err) {
          document.documentElement.classList.remove('sidebar-will-collapse');
        }
        collapseBtn.addEventListener('click', () => {
          const isCollapsed = sidebar.classList.contains('sidebar-collapsed');
          applyCollapsed(!isCollapsed);
        });
        sidebarBrand?.addEventListener('click', (e) => {
          const isCollapsed = sidebar.classList.contains('sidebar-collapsed');
          if (isCollapsed) {
            e.preventDefault();
            applyCollapsed(false);
          }
        });
      })();
    </script>
@@ -233,6 +393,8 @@
        {% endwith %}
      })();
    </script>
    <script src="{{ url_for('static', filename='js/ui-core.js') }}"></script>
    {% block extra_scripts %}{% endblock %}
  </body>
 </html>
--- a/templates/bucket_detail.html
+++ b/templates/bucket_detail.html
--- a/templates/buckets.html
+++ b/templates/buckets.html
@@ -46,8 +46,7 @@
          <div class="d-flex align-items-center gap-3">
            <div class="bucket-icon">
              <svg xmlns="http://www.w3.org/2000/svg" width="22" height="22" fill="currentColor" viewBox="0 0 16 16">
-                <path d="M4.5 5a.5.5 0 1 0 0-1 .5.5 0 0 0 0 1zM3 4.5a.5.5 0 1 1-1 0 .5.5 0 0 1 1 0z"/>
+                <path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>
                <path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v1a2 2 0 0 1-2 2H8.5v3a1.5 1.5 0 0 1 1.5 1.5H11a.5.5 0 0 1 0 1h-1v1h1a.5.5 0 0 1 0 1h-1v1a.5.5 0 0 1-1 0v-1H6v1a.5.5 0 0 1-1 0v-1H4a.5.5 0 0 1 0-1h1v-1H4a.5.5 0 0 1 0-1h1.5A1.5 1.5 0 0 1 7 10.5V7H2a2 2 0 0 1-2-2V4zm1 0v1a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1H2a1 1 0 0 0-1 1zm5 7.5v1h3v-1a.5.5 0 0 0-.5-.5h-2a.5.5 0 0 0-.5.5z"/>
              </svg>
            </div>
            <div>
@@ -105,7 +104,7 @@
        </h1>
        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
      </div>
-      <form method="post" action="{{ url_for('ui.create_bucket') }}">
+      <form method="post" action="{{ url_for('ui.create_bucket') }}" id="createBucketForm">
        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}" />
        <div class="modal-body pt-0">
          <label class="form-label fw-medium">Bucket name</label>
@@ -134,7 +133,7 @@
    const searchInput = document.getElementById('bucket-search');
    const bucketItems = document.querySelectorAll('.bucket-item');
-    const noBucketsMsg = document.querySelector('.text-center.py-5'); // The "No buckets found" empty state
+    const noBucketsMsg = document.querySelector('.text-center.py-5');
    if (searchInput) {
      searchInput.addEventListener('input', (e) => {
@@ -206,6 +205,25 @@
      });
      row.style.cursor = 'pointer';
    });
    var createForm = document.getElementById('createBucketForm');
    if (createForm) {
      createForm.addEventListener('submit', function(e) {
        e.preventDefault();
        window.UICore.submitFormAjax(createForm, {
          successMessage: 'Bucket created',
          onSuccess: function(data) {
            var modal = bootstrap.Modal.getInstance(document.getElementById('createBucketModal'));
            if (modal) modal.hide();
            if (data.bucket_name) {
              window.location.href = '{{ url_for("ui.bucket_detail", bucket_name="__BUCKET__") }}'.replace('__BUCKET__', data.bucket_name);
            } else {
              location.reload();
            }
          }
        });
      });
    }
  })();
 </script>
 {% endblock %}
--- a/templates/connections.html
+++ b/templates/connections.html
@@ -8,8 +8,8 @@
    <p class="text-uppercase text-muted small mb-1">Replication</p>
    <h1 class="h3 mb-1 d-flex align-items-center gap-2">
      <svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="text-primary" viewBox="0 0 16 16">
-        <path d="M4.5 5a.5.5 0 1 0 0-1 .5.5 0 0 0 0 1zM3 4.5a.5.5 0 1 1-1 0 .5.5 0 0 1 1 0z"/>
+        <path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383z"/>
-        <path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v1a2 2 0 0 1-2 2H8.5v3a1.5 1.5 0 0 1 1.5 1.5H12a.5.5 0 0 1 0 1H4a.5.5 0 0 1 0-1h2A1.5 1.5 0 0 1 7.5 10V7H2a2 2 0 0 1-2-2V4zm1 0v1a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1H2a1 1 0 0 0-1 1z"/>
+        <path d="M10.232 8.768l.546-.353a.25.25 0 0 0 0-.418l-.546-.354a.25.25 0 0 1-.116-.21V6.25a.25.25 0 0 0-.25-.25h-.5a.25.25 0 0 0-.25.25v1.183a.25.25 0 0 1-.116.21l-.546.354a.25.25 0 0 0 0 .418l.546.353a.25.25 0 0 1 .116.21v1.183a.25.25 0 0 0 .25.25h.5a.25.25 0 0 0 .25-.25V8.978a.25.25 0 0 1 .116-.21z"/>
      </svg>
      Remote Connections
    </h1>
@@ -57,7 +57,7 @@
                        <label for="secret_key" class="form-label fw-medium">Secret Key</label>
                        <div class="input-group">
                            <input type="password" class="form-control font-monospace" id="secret_key" name="secret_key" required>
-                            <button class="btn btn-outline-secondary" type="button" onclick="togglePassword('secret_key')" title="Toggle visibility">
+                            <button class="btn btn-outline-secondary" type="button" onclick="ConnectionsManagement.togglePassword('secret_key')" title="Toggle visibility">
                                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
                                    <path d="M16 8s-3-5.5-8-5.5S0 8 0 8s3 5.5 8 5.5S16 8 16 8zM1.173 8a13.133 13.133 0 0 1 1.66-2.043C4.12 4.668 5.88 3.5 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.133 13.133 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755C11.879 11.332 10.119 12.5 8 12.5c-2.12 0-3.879-1.168-5.168-2.457A13.134 13.134 0 0 1 1.172 8z"/>
                                    <path d="M8 5.5a2.5 2.5 0 1 0 0 5 2.5 2.5 0 0 0 0-5zM4.5 8a3.5 3.5 0 1 1 7 0 3.5 3.5 0 0 1-7 0z"/>
@@ -124,8 +124,7 @@
                                    <div class="d-flex align-items-center gap-2">
                                        <div class="connection-icon">
                                            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
-                                                <path d="M4.5 5a.5.5 0 1 0 0-1 .5.5 0 0 0 0 1zM3 4.5a.5.5 0 1 1-1 0 .5.5 0 0 1 1 0z"/>
+                                                <path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383z"/>
                                                <path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v1a2 2 0 0 1-2 2H8.5v3a1.5 1.5 0 0 1 1.5 1.5H12a.5.5 0 0 1 0 1H4a.5.5 0 0 1 0-1h2A1.5 1.5 0 0 1 7.5 10V7H2a2 2 0 0 1-2-2V4zm1 0v1a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1H2a1 1 0 0 0-1 1z"/>
                                            </svg>
                                        </div>
                                        <span class="fw-medium">{{ conn.name }}</span>
@@ -174,8 +173,7 @@
                <div class="empty-state text-center py-5">
                    <div class="empty-state-icon mx-auto mb-3">
                        <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" fill="currentColor" viewBox="0 0 16 16">
-                            <path d="M4.5 5a.5.5 0 1 0 0-1 .5.5 0 0 0 0 1zM3 4.5a.5.5 0 1 1-1 0 .5.5 0 0 1 1 0z"/>
+                            <path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383z"/>
                            <path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v1a2 2 0 0 1-2 2H8.5v3a1.5 1.5 0 0 1 1.5 1.5H12a.5.5 0 0 1 0 1H4a.5.5 0 0 1 0-1h2A1.5 1.5 0 0 1 7.5 10V7H2a2 2 0 0 1-2-2V4zm1 0v1a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1H2a1 1 0 0 0-1 1z"/>
                        </svg>
                    </div>
                    <h5 class="fw-semibold mb-2">No connections yet</h5>
@@ -222,7 +220,7 @@
                        <label for="edit_secret_key" class="form-label fw-medium">Secret Key</label>
                        <div class="input-group">
                            <input type="password" class="form-control font-monospace" id="edit_secret_key" name="secret_key" required>
-                            <button class="btn btn-outline-secondary" type="button" onclick="togglePassword('edit_secret_key')">
+                            <button class="btn btn-outline-secondary" type="button" onclick="ConnectionsManagement.togglePassword('edit_secret_key')">
                                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
                                    <path d="M16 8s-3-5.5-8-5.5S0 8 0 8s3 5.5 8 5.5S16 8 16 8zM1.173 8a13.133 13.133 0 0 1 1.66-2.043C4.12 4.668 5.88 3.5 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.133 13.133 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755C11.879 11.332 10.119 12.5 8 12.5c-2.12 0-3.879-1.168-5.168-2.457A13.134 13.134 0 0 1 1.172 8z"/>
                                    <path d="M8 5.5a2.5 2.5 0 1 0 0 5 2.5 2.5 0 0 0 0-5zM4.5 8a3.5 3.5 0 1 1 7 0 3.5 3.5 0 0 1-7 0z"/>
@@ -291,157 +289,15 @@
    </div>
 </div>
 <script src="{{ url_for('static', filename='js/connections-management.js') }}"></script>
 <script>
-    function togglePassword(id) {
+  ConnectionsManagement.init({
-        const input = document.getElementById(id);
+    csrfToken: "{{ csrf_token() }}",
-        if (input.type === "password") {
+    endpoints: {
-            input.type = "text";
+      test: "{{ url_for('ui.test_connection') }}",
-        } else {
+      updateTemplate: "{{ url_for('ui.update_connection', connection_id='CONNECTION_ID') }}",
-            input.type = "password";
+      deleteTemplate: "{{ url_for('ui.delete_connection', connection_id='CONNECTION_ID') }}",
-        }
+      healthTemplate: "/ui/connections/CONNECTION_ID/health"
    }
    async function testConnection(formId, resultId) {
        const form = document.getElementById(formId);
        const resultDiv = document.getElementById(resultId);
        const formData = new FormData(form);
        const data = Object.fromEntries(formData.entries());
        resultDiv.innerHTML = '<div class="text-info"><span class="spinner-border spinner-border-sm" role="status" aria-hidden="true"></span> Testing connection...</div>';
        // Use AbortController to timeout client-side after 20 seconds
        const controller = new AbortController();
        const timeoutId = setTimeout(() => controller.abort(), 20000);
        try {
            const response = await fetch("{{ url_for('ui.test_connection') }}", {
                method: "POST",
                headers: {
                    "Content-Type": "application/json",
                    "X-CSRFToken": "{{ csrf_token() }}"
                },
                body: JSON.stringify(data),
                signal: controller.signal
            });
            clearTimeout(timeoutId);
            const result = await response.json();
            if (response.ok) {
                resultDiv.innerHTML = `<div class="text-success">
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/>
                    </svg>
                    ${result.message}
                </div>`;
            } else {
                resultDiv.innerHTML = `<div class="text-danger">
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>
                    </svg>
                    ${result.message}
                </div>`;
            }
        } catch (error) {
            clearTimeout(timeoutId);
            if (error.name === 'AbortError') {
                resultDiv.innerHTML = `<div class="text-danger">
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>
                    </svg>
                    Connection test timed out - endpoint may be unreachable
                </div>`;
            } else {
                resultDiv.innerHTML = `<div class="text-danger">
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>
                    </svg>
                    Connection failed: Network error
                </div>`;
            }
        }
    }
    document.getElementById('testConnectionBtn').addEventListener('click', () => {
        testConnection('createConnectionForm', 'testResult');
    });
    document.getElementById('editTestConnectionBtn').addEventListener('click', () => {
        testConnection('editConnectionForm', 'editTestResult');
    });
    const editModal = document.getElementById('editConnectionModal');
    editModal.addEventListener('show.bs.modal', event => {
        const button = event.relatedTarget;
        const id = button.getAttribute('data-id');
        document.getElementById('edit_name').value = button.getAttribute('data-name');
        document.getElementById('edit_endpoint_url').value = button.getAttribute('data-endpoint');
        document.getElementById('edit_region').value = button.getAttribute('data-region');
        document.getElementById('edit_access_key').value = button.getAttribute('data-access');
        document.getElementById('edit_secret_key').value = button.getAttribute('data-secret');
        document.getElementById('editTestResult').innerHTML = '';
        const form = document.getElementById('editConnectionForm');
        form.action = "{{ url_for('ui.update_connection', connection_id='CONN_ID') }}".replace('CONN_ID', id);
    });
    const deleteModal = document.getElementById('deleteConnectionModal');
    deleteModal.addEventListener('show.bs.modal', event => {
        const button = event.relatedTarget;
        const id = button.getAttribute('data-id');
        const name = button.getAttribute('data-name');
        document.getElementById('deleteConnectionName').textContent = name;
        const form = document.getElementById('deleteConnectionForm');
        form.action = "{{ url_for('ui.delete_connection', connection_id='CONN_ID') }}".replace('CONN_ID', id);
    });
    // Check connection health for each connection in the table
    // Uses staggered requests to avoid overwhelming the server
    async function checkConnectionHealth(connectionId, statusEl) {
        try {
            const controller = new AbortController();
            const timeoutId = setTimeout(() => controller.abort(), 15000);
            const response = await fetch(`/ui/connections/${connectionId}/health`, {
                signal: controller.signal
            });
            clearTimeout(timeoutId);
            const data = await response.json();
            if (data.healthy) {
                statusEl.innerHTML = `
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-success" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/>
                    </svg>`;
                statusEl.setAttribute('data-status', 'healthy');
                statusEl.setAttribute('title', 'Connected');
            } else {
                statusEl.innerHTML = `
                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-danger" viewBox="0 0 16 16">
                        <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>
                    </svg>`;
                statusEl.setAttribute('data-status', 'unhealthy');
                statusEl.setAttribute('title', data.error || 'Unreachable');
            }
        } catch (error) {
            statusEl.innerHTML = `
                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="text-warning" viewBox="0 0 16 16">
                    <path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z"/>
                </svg>`;
            statusEl.setAttribute('data-status', 'unknown');
            statusEl.setAttribute('title', 'Could not check status');
        }
    }
    // Stagger health checks to avoid all requests at once
    const connectionRows = document.querySelectorAll('tr[data-connection-id]');
    connectionRows.forEach((row, index) => {
        const connectionId = row.getAttribute('data-connection-id');
        const statusEl = row.querySelector('.connection-status');
        if (statusEl) {
            // Stagger requests by 200ms each
            setTimeout(() => checkConnectionHealth(connectionId, statusEl), index * 200);
    }
  });
 </script>
--- a/templates/docs.html
+++ b/templates/docs.html
@@ -14,6 +14,37 @@
  </div>
 </section>
 <div class="row g-4">
  <div class="col-12 d-xl-none">
    <div class="card shadow-sm docs-sidebar-mobile mb-0">
      <div class="card-body py-3">
        <div class="d-flex align-items-center justify-content-between mb-2">
          <h3 class="h6 text-uppercase text-muted mb-0">On this page</h3>
          <button class="btn btn-sm btn-outline-secondary" type="button" data-bs-toggle="collapse" data-bs-target="#mobileDocsToc" aria-expanded="false" aria-controls="mobileDocsToc">
            <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
              <path fill-rule="evenodd" d="M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z"/>
            </svg>
          </button>
        </div>
        <div class="collapse" id="mobileDocsToc">
          <ul class="list-unstyled docs-toc mb-0 small">
            <li><a href="#setup">Set up &amp; run</a></li>
            <li><a href="#background">Running in background</a></li>
            <li><a href="#auth">Authentication &amp; IAM</a></li>
            <li><a href="#console">Console tour</a></li>
            <li><a href="#automation">Automation / CLI</a></li>
            <li><a href="#api">REST endpoints</a></li>
            <li><a href="#examples">API Examples</a></li>
            <li><a href="#replication">Site Replication</a></li>
            <li><a href="#versioning">Object Versioning</a></li>
            <li><a href="#quotas">Bucket Quotas</a></li>
            <li><a href="#encryption">Encryption</a></li>
            <li><a href="#lifecycle">Lifecycle Rules</a></li>
            <li><a href="#troubleshooting">Troubleshooting</a></li>
          </ul>
        </div>
      </div>
    </div>
  </div>
  <div class="col-xl-8">
    <article id="setup" class="card shadow-sm docs-section">
      <div class="card-body">
@@ -407,10 +438,62 @@ curl -X POST {{ api_base }}/presign/demo/notes.txt \
          <span class="docs-section-kicker">07</span>
          <h2 class="h4 mb-0">API Examples</h2>
        </div>
-        <p class="text-muted">Common operations using boto3.</p>
+        <p class="text-muted">Common operations using popular SDKs and tools.</p>
-        <h5 class="mt-4">Multipart Upload</h5>
+        <h3 class="h6 text-uppercase text-muted mt-4">Python (boto3)</h3>
-<pre><code class="language-python">import boto3
+<pre class="mb-4"><code class="language-python">import boto3
 s3 = boto3.client(
    's3',
    endpoint_url='{{ api_base }}',
    aws_access_key_id='&lt;access_key&gt;',
    aws_secret_access_key='&lt;secret_key&gt;'
 )
 # List buckets
 buckets = s3.list_buckets()['Buckets']
 # Create bucket
 s3.create_bucket(Bucket='mybucket')
 # Upload file
 s3.upload_file('local.txt', 'mybucket', 'remote.txt')
 # Download file
 s3.download_file('mybucket', 'remote.txt', 'downloaded.txt')
 # Generate presigned URL (valid 1 hour)
 url = s3.generate_presigned_url(
    'get_object',
    Params={'Bucket': 'mybucket', 'Key': 'remote.txt'},
    ExpiresIn=3600
 )</code></pre>
        <h3 class="h6 text-uppercase text-muted mt-4">JavaScript (AWS SDK v3)</h3>
 <pre class="mb-4"><code class="language-javascript">import { S3Client, ListBucketsCommand, PutObjectCommand } from '@aws-sdk/client-s3';
 const s3 = new S3Client({
  endpoint: '{{ api_base }}',
  region: 'us-east-1',
  credentials: {
    accessKeyId: '&lt;access_key&gt;',
    secretAccessKey: '&lt;secret_key&gt;'
  },
  forcePathStyle: true  // Required for S3-compatible services
 });
 // List buckets
 const { Buckets } = await s3.send(new ListBucketsCommand({}));
 // Upload object
 await s3.send(new PutObjectCommand({
  Bucket: 'mybucket',
  Key: 'hello.txt',
  Body: 'Hello, World!'
 }));</code></pre>
        <h3 class="h6 text-uppercase text-muted mt-4">Multipart Upload (Python)</h3>
 <pre class="mb-4"><code class="language-python">import boto3
 s3 = boto3.client('s3', endpoint_url='{{ api_base }}')
@@ -418,9 +501,9 @@ s3 = boto3.client('s3', endpoint_url='{{ api_base }}')
 response = s3.create_multipart_upload(Bucket='mybucket', Key='large.bin')
 upload_id = response['UploadId']
-# Upload parts
+# Upload parts (minimum 5MB each, except last part)
 parts = []
-chunks = [b'chunk1', b'chunk2'] # Example data chunks
+chunks = [b'chunk1...', b'chunk2...']
 for part_number, chunk in enumerate(chunks, start=1):
    response = s3.upload_part(
        Bucket='mybucket',
@@ -438,6 +521,19 @@ s3.complete_multipart_upload(
    UploadId=upload_id,
    MultipartUpload={'Parts': parts}
 )</code></pre>
        <h3 class="h6 text-uppercase text-muted mt-4">Presigned URLs for Sharing</h3>
 <pre class="mb-0"><code class="language-bash"># Generate a download link valid for 15 minutes
 curl -X POST "{{ api_base }}/presign/mybucket/photo.jpg" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;" \
  -d '{"method": "GET", "expires_in": 900}'
 # Generate an upload link (PUT) valid for 1 hour
 curl -X POST "{{ api_base }}/presign/mybucket/upload.bin" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;" \
  -d '{"method": "PUT", "expires_in": 3600}'</code></pre>
      </div>
    </article>
    <article id="replication" class="card shadow-sm docs-section">
@@ -461,15 +557,46 @@ s3.complete_multipart_upload(
            </li>
        </ol>
-        <div class="alert alert-light border mb-0">
+        <div class="alert alert-light border mb-3 overflow-hidden">
-            <div class="d-flex gap-2">
+            <div class="d-flex flex-column flex-sm-row gap-2 mb-2">
-                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-terminal text-muted mt-1" viewBox="0 0 16 16">
+                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-terminal text-muted mt-1 flex-shrink-0 d-none d-sm-block" viewBox="0 0 16 16">
                  <path d="M6 9a.5.5 0 0 1 .5-.5h3a.5.5 0 0 1 0 1h-3A.5.5 0 0 1 6 9zM3.854 4.146a.5.5 0 1 0-.708.708L4.793 6.5 3.146 8.146a.5.5 0 1 0 .708.708l2-2a.5.5 0 0 0 0-.708l-2-2z"/>
                  <path d="M2 1a2 2 0 0 0-2 2v10a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2H2zm12 1a1 1 0 0 1 1 1v10a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V3a1 1 0 0 1 1-1h12z"/>
                </svg>
-                <div>
+                <div class="flex-grow-1 min-width-0">
-                    <strong>Headless Target Setup?</strong>
+                    <strong>Headless Target Setup</strong>
-                    <p class="small text-muted mb-0">If your target server has no UI, use the Python API directly to bootstrap credentials. See <code>docs.md</code> in the project root for the <code>setup_target.py</code> script.</p>
+                    <p class="small text-muted mb-2">If your target server has no UI, create a <code>setup_target.py</code> script to bootstrap credentials:</p>
 <pre class="mb-0 overflow-auto" style="max-width: 100%;"><code class="language-python"># setup_target.py
 from pathlib import Path
 from app.iam import IamService
 from app.storage import ObjectStorage
 # Initialize services (paths match default config)
 data_dir = Path("data")
 iam = IamService(data_dir / ".myfsio.sys" / "config" / "iam.json")
 storage = ObjectStorage(data_dir)
 # 1. Create the bucket
 bucket_name = "backup-bucket"
 try:
    storage.create_bucket(bucket_name)
    print(f"Bucket '{bucket_name}' created.")
 except Exception as e:
    print(f"Bucket creation skipped: {e}")
 # 2. Create the user
 try:
    creds = iam.create_user(
        display_name="Replication User",
        policies=[{"bucket": bucket_name, "actions": ["write", "read", "list"]}]
    )
    print("\n--- CREDENTIALS GENERATED ---")
    print(f"Access Key: {creds['access_key']}")
    print(f"Secret Key: {creds['secret_key']}")
    print("-----------------------------")
 except Exception as e:
    print(f"User creation failed: {e}")</code></pre>
                    <p class="small text-muted mt-2 mb-0">Save and run: <code>python setup_target.py</code></p>
                </div>
            </div>
        </div>
@@ -480,11 +607,129 @@ s3.complete_multipart_upload(
            <li>Follow the steps above to replicate <strong>A → B</strong>.</li>
            <li>Repeat the process on Server B to replicate <strong>B → A</strong> (create a connection to A, enable rule).</li>
        </ol>
-        <p class="small text-muted mb-0">
+        <p class="small text-muted mb-3">
            <strong>Loop Prevention:</strong> The system automatically detects replication traffic using a custom User-Agent (<code>S3ReplicationAgent</code>). This prevents infinite loops where an object replicated from A to B is immediately replicated back to A.
            <br>
            <strong>Deletes:</strong> Deleting an object on one server will propagate the deletion to the other server.
        </p>
        <h3 class="h6 text-uppercase text-muted mt-4">Error Handling &amp; Rate Limits</h3>
        <p class="small text-muted mb-3">The replication system handles transient failures automatically:</p>
        <div class="table-responsive mb-3">
          <table class="table table-sm table-bordered small">
            <thead class="table-light">
              <tr>
                <th>Behavior</th>
                <th>Details</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td><strong>Retry Logic</strong></td>
                <td>boto3 automatically handles 429 (rate limit) errors using exponential backoff with <code>max_attempts=2</code></td>
              </tr>
              <tr>
                <td><strong>Concurrency</strong></td>
                <td>Uses a ThreadPoolExecutor with 4 parallel workers for replication tasks</td>
              </tr>
              <tr>
                <td><strong>Timeouts</strong></td>
                <td>Connect: 5s, Read: 30s. Large files use streaming transfers</td>
              </tr>
            </tbody>
          </table>
        </div>
        <div class="alert alert-warning border mb-0">
          <div class="d-flex gap-2">
            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-exclamation-triangle text-warning mt-1 flex-shrink-0" viewBox="0 0 16 16">
              <path d="M7.938 2.016A.13.13 0 0 1 8.002 2a.13.13 0 0 1 .063.016.146.146 0 0 1 .054.057l6.857 11.667c.036.06.035.124.002.183a.163.163 0 0 1-.054.06.116.116 0 0 1-.066.017H1.146a.115.115 0 0 1-.066-.017.163.163 0 0 1-.054-.06.176.176 0 0 1 .002-.183L7.884 2.073a.147.147 0 0 1 .054-.057zm1.044-.45a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566z"/>
              <path d="M7.002 12a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 5.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995z"/>
            </svg>
            <div>
              <strong>Large File Counts:</strong> When replicating buckets with many objects, the target server's rate limits may cause delays. There is no built-in pause mechanism. Consider increasing <code>RATE_LIMIT_DEFAULT</code> on the target server during bulk replication operations.
            </div>
          </div>
        </div>
      </div>
    </article>
    <article id="versioning" class="card shadow-sm docs-section">
      <div class="card-body">
        <div class="d-flex align-items-center gap-2 mb-3">
          <span class="docs-section-kicker">09</span>
          <h2 class="h4 mb-0">Object Versioning</h2>
        </div>
        <p class="text-muted">Keep multiple versions of objects to protect against accidental deletions and overwrites. Restore previous versions at any time.</p>
        <h3 class="h6 text-uppercase text-muted mt-4">Enabling Versioning</h3>
        <ol class="docs-steps mb-3">
          <li>Navigate to your bucket's <strong>Properties</strong> tab.</li>
          <li>Find the <strong>Versioning</strong> card and click <strong>Enable</strong>.</li>
          <li>All subsequent uploads will create new versions instead of overwriting.</li>
        </ol>
        <h3 class="h6 text-uppercase text-muted mt-4">Version Operations</h3>
        <div class="table-responsive mb-3">
          <table class="table table-sm table-bordered small">
            <thead class="table-light">
              <tr>
                <th>Operation</th>
                <th>Description</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td><strong>View Versions</strong></td>
                <td>Click the version icon on any object to see all historical versions with timestamps and sizes.</td>
              </tr>
              <tr>
                <td><strong>Restore Version</strong></td>
                <td>Click <strong>Restore</strong> on any version to make it the current version (creates a copy).</td>
              </tr>
              <tr>
                <td><strong>Delete Current</strong></td>
                <td>Deleting an object archives it. Previous versions remain accessible.</td>
              </tr>
              <tr>
                <td><strong>Purge All</strong></td>
                <td>Permanently delete an object and all its versions. This cannot be undone.</td>
              </tr>
            </tbody>
          </table>
        </div>
        <h3 class="h6 text-uppercase text-muted mt-4">Archived Objects</h3>
        <p class="small text-muted mb-3">When you delete a versioned object, it becomes "archived" - the current version is removed but historical versions remain. The <strong>Archived</strong> tab shows these objects so you can restore them.</p>
        <h3 class="h6 text-uppercase text-muted mt-4">API Usage</h3>
 <pre class="mb-3"><code class="language-bash"># Enable versioning
 curl -X PUT "{{ api_base }}/&lt;bucket&gt;?versioning" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;" \
  -d '{"Status": "Enabled"}'
 # Get versioning status
 curl "{{ api_base }}/&lt;bucket&gt;?versioning" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;"
 # List object versions
 curl "{{ api_base }}/&lt;bucket&gt;?versions" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;"
 # Get specific version
 curl "{{ api_base }}/&lt;bucket&gt;/&lt;key&gt;?versionId=&lt;version-id&gt;" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;"</code></pre>
        <div class="alert alert-light border mb-0">
          <div class="d-flex gap-2">
            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-info-circle text-muted mt-1" viewBox="0 0 16 16">
              <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
              <path d="m8.93 6.588-2.29.287-.082.38.45.083c.294.07.352.176.288.469l-.738 3.468c-.194.897.105 1.319.808 1.319.545 0 1.178-.252 1.465-.598l.088-.416c-.2.176-.492.246-.686.246-.275 0-.375-.193-.304-.533L8.93 6.588zM9 4.5a1 1 0 1 1-2 0 1 1 0 0 1 2 0z"/>
            </svg>
            <div>
              <strong>Storage Impact:</strong> Each version consumes storage. Enable quotas to limit total bucket size including all versions.
            </div>
          </div>
        </div>
      </div>
    </article>
    <article id="quotas" class="card shadow-sm docs-section">
@@ -649,10 +894,92 @@ curl -X DELETE "{{ api_base }}/kms/keys/{key-id}?waiting_period_days=30" \
        </p>
      </div>
    </article>
-    <article id="troubleshooting" class="card shadow-sm docs-section">
+    <article id="lifecycle" class="card shadow-sm docs-section">
      <div class="card-body">
        <div class="d-flex align-items-center gap-2 mb-3">
          <span class="docs-section-kicker">12</span>
          <h2 class="h4 mb-0">Lifecycle Rules</h2>
        </div>
        <p class="text-muted">Automatically delete expired objects, clean up old versions, and abort incomplete multipart uploads using time-based lifecycle rules.</p>
        <h3 class="h6 text-uppercase text-muted mt-4">How It Works</h3>
        <p class="small text-muted mb-3">
          Lifecycle rules run on a background timer (Python <code>threading.Timer</code>), not a system cronjob. The enforcement cycle triggers every <strong>3600 seconds (1 hour)</strong> by default. Each cycle scans all buckets with lifecycle configurations and applies matching rules.
        </p>
        <h3 class="h6 text-uppercase text-muted mt-4">Expiration Types</h3>
        <div class="table-responsive mb-3">
          <table class="table table-sm table-bordered small">
            <thead class="table-light">
              <tr>
                <th>Type</th>
                <th>Description</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td><strong>Expiration (Days)</strong></td>
                <td>Delete current objects older than N days from their last modification</td>
              </tr>
              <tr>
                <td><strong>Expiration (Date)</strong></td>
                <td>Delete current objects after a specific date (ISO 8601 format)</td>
              </tr>
              <tr>
                <td><strong>NoncurrentVersionExpiration</strong></td>
                <td>Delete non-current (archived) versions older than N days from when they became non-current</td>
              </tr>
              <tr>
                <td><strong>AbortIncompleteMultipartUpload</strong></td>
                <td>Abort multipart uploads that have been in progress longer than N days</td>
              </tr>
            </tbody>
          </table>
        </div>
        <h3 class="h6 text-uppercase text-muted mt-4">API Usage</h3>
 <pre class="mb-3"><code class="language-bash"># Set lifecycle rule (delete objects older than 30 days)
 curl -X PUT "{{ api_base }}/&lt;bucket&gt;?lifecycle" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;" \
  -d '[{
    "ID": "expire-old-objects",
    "Status": "Enabled",
    "Prefix": "",
    "Expiration": {"Days": 30}
  }]'
 # Abort incomplete multipart uploads after 7 days
 curl -X PUT "{{ api_base }}/&lt;bucket&gt;?lifecycle" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;" \
  -d '[{
    "ID": "cleanup-multipart",
    "Status": "Enabled",
    "AbortIncompleteMultipartUpload": {"DaysAfterInitiation": 7}
  }]'
 # Get current lifecycle configuration
 curl "{{ api_base }}/&lt;bucket&gt;?lifecycle" \
  -H "X-Access-Key: &lt;key&gt;" -H "X-Secret-Key: &lt;secret&gt;"</code></pre>
        <div class="alert alert-light border mb-0">
          <div class="d-flex gap-2">
            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-info-circle text-muted mt-1 flex-shrink-0" viewBox="0 0 16 16">
              <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
              <path d="m8.93 6.588-2.29.287-.082.38.45.083c.294.07.352.176.288.469l-.738 3.468c-.194.897.105 1.319.808 1.319.545 0 1.178-.252 1.465-.598l.088-.416c-.2.176-.492.246-.686.246-.275 0-.375-.193-.304-.533L8.93 6.588zM9 4.5a1 1 0 1 1-2 0 1 1 0 0 1 2 0z"/>
            </svg>
            <div>
              <strong>Prefix Filtering:</strong> Use the <code>Prefix</code> field to scope rules to specific paths (e.g., <code>"logs/"</code>). Leave empty to apply to all objects in the bucket.
            </div>
          </div>
        </div>
      </div>
    </article>
    <article id="troubleshooting" class="card shadow-sm docs-section">
      <div class="card-body">
        <div class="d-flex align-items-center gap-2 mb-3">
          <span class="docs-section-kicker">13</span>
          <h2 class="h4 mb-0">Troubleshooting &amp; tips</h2>
        </div>
        <div class="table-responsive">
@@ -690,6 +1017,11 @@ curl -X DELETE "{{ api_base }}/kms/keys/{key-id}?waiting_period_days=30" \
                <td>Proxy headers missing or <code>API_BASE_URL</code> incorrect</td>
                <td>Ensure your proxy sends <code>X-Forwarded-Host</code>/<code>Proto</code> headers, or explicitly set <code>API_BASE_URL</code> to your public domain.</td>
              </tr>
              <tr>
                <td>Large folder uploads hitting rate limits (429)</td>
                <td><code>RATE_LIMIT_DEFAULT</code> exceeded (200/min)</td>
                <td>Increase rate limit in env config, use Redis backend (<code>RATE_LIMIT_STORAGE_URI=redis://host:port</code>) for distributed setups, or upload in smaller batches.</td>
              </tr>
            </tbody>
          </table>
        </div>
@@ -709,8 +1041,10 @@ curl -X DELETE "{{ api_base }}/kms/keys/{key-id}?waiting_period_days=30" \
          <li><a href="#api">REST endpoints</a></li>
          <li><a href="#examples">API Examples</a></li>
          <li><a href="#replication">Site Replication</a></li>
          <li><a href="#versioning">Object Versioning</a></li>
          <li><a href="#quotas">Bucket Quotas</a></li>
          <li><a href="#encryption">Encryption</a></li>
          <li><a href="#lifecycle">Lifecycle Rules</a></li>
          <li><a href="#troubleshooting">Troubleshooting</a></li>
        </ul>
        <div class="docs-sidebar-callouts">
--- a/templates/iam.html
+++ b/templates/iam.html
@@ -10,6 +10,7 @@
      </svg>
      IAM Configuration
    </h1>
    <p class="text-muted mb-0 mt-1">Create and manage users with fine-grained bucket permissions.</p>
  </div>
  <div class="d-flex gap-2">
    {% if not iam_locked %}
@@ -109,35 +110,68 @@
  {% else %}
  <div class="card-body px-4 pb-4">
    {% if users %}
-    <div class="table-responsive">
+    <div class="row g-3">
      <table class="table table-hover align-middle mb-0">
        <thead class="table-light">
          <tr>
            <th scope="col">User</th>
            <th scope="col">Policies</th>
            <th scope="col" class="text-end">Actions</th>
          </tr>
        </thead>
        <tbody>
      {% for user in users %}
-          <tr>
+      <div class="col-md-6 col-xl-4">
-            <td>
+        <div class="card h-100 iam-user-card">
-              <div class="d-flex align-items-center gap-3">
+          <div class="card-body">
-                <div class="user-avatar">
+            <div class="d-flex align-items-start justify-content-between mb-3">
-                  <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
+              <div class="d-flex align-items-center gap-3 min-width-0 overflow-hidden">
                <div class="user-avatar user-avatar-lg flex-shrink-0">
                  <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 16 16">
                    <path d="M8 8a3 3 0 1 0 0-6 3 3 0 0 0 0 6zm2-3a2 2 0 1 1-4 0 2 2 0 0 1 4 0zm4 8c0 1-1 1-1 1H3s-1 0-1-1 1-4 6-4 6 3 6 4zm-1-.004c-.001-.246-.154-.986-.832-1.664C11.516 10.68 10.289 10 8 10c-2.29 0-3.516.68-4.168 1.332-.678.678-.83 1.418-.832 1.664h10z"/>
                  </svg>
                </div>
-                <div>
+                <div class="min-width-0">
-                  <div class="fw-medium">{{ user.display_name }}</div>
+                  <h6 class="fw-semibold mb-0 text-truncate" title="{{ user.display_name }}">{{ user.display_name }}</h6>
-                  <code class="small text-muted">{{ user.access_key }}</code>
+                  <code class="small text-muted d-block text-truncate" title="{{ user.access_key }}">{{ user.access_key }}</code>
                </div>
              </div>
-            </td>
+              <div class="dropdown flex-shrink-0">
-            <td>
+                <button class="btn btn-sm btn-icon" type="button" data-bs-toggle="dropdown" aria-expanded="false">
                  <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
                    <path d="M9.5 13a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0zm0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0zm0-5a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0z"/>
                  </svg>
                </button>
                <ul class="dropdown-menu dropdown-menu-end">
                  <li>
                    <button class="dropdown-item" type="button" data-edit-user="{{ user.access_key }}" data-display-name="{{ user.display_name }}">
                      <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16">
                        <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5z"/>
                      </svg>
                      Edit Name
                    </button>
                  </li>
                  <li>
                    <button class="dropdown-item" type="button" data-rotate-user="{{ user.access_key }}">
                      <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16">
                        <path d="M11.534 7h3.932a.25.25 0 0 1 .192.41l-1.966 2.36a.25.25 0 0 1-.384 0l-1.966-2.36a.25.25 0 0 1 .192-.41zm-11 2h3.932a.25.25 0 0 0 .192-.41L2.692 6.23a.25.25 0 0 0-.384 0L.342 8.59A.25.25 0 0 0 .534 9z"/>
                        <path fill-rule="evenodd" d="M8 3c-1.552 0-2.94.707-3.857 1.818a.5.5 0 1 1-.771-.636A6.002 6.002 0 0 1 13.917 7H12.9A5.002 5.002 0 0 0 8 3zM3.1 9a5.002 5.002 0 0 0 8.757 2.182.5.5 0 1 1 .771.636A6.002 6.002 0 0 1 2.083 9H3.1z"/>
                      </svg>
                      Rotate Secret
                    </button>
                  </li>
                  <li><hr class="dropdown-divider"></li>
                  <li>
                    <button class="dropdown-item text-danger" type="button" data-delete-user="{{ user.access_key }}">
                      <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-2" viewBox="0 0 16 16">
                        <path d="M5.5 5.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm3 .5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 1 0z"/>
                        <path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
                      </svg>
                      Delete User
                    </button>
                  </li>
                </ul>
              </div>
            </div>
            <div class="mb-3">
              <div class="small text-muted mb-2">Bucket Permissions</div>
              <div class="d-flex flex-wrap gap-1">
                {% for policy in user.policies %}
                  <span class="badge bg-primary bg-opacity-10 text-primary">
                    <svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                      <path d="M2.522 5H2a.5.5 0 0 0-.494.574l1.372 9.149A1.5 1.5 0 0 0 4.36 16h7.278a1.5 1.5 0 0 0 1.483-1.277l1.373-9.149A.5.5 0 0 0 14 5h-.522A5.5 5.5 0 0 0 2.522 5zm1.005 0a4.5 4.5 0 0 1 8.945 0H3.527z"/>
                    </svg>
                    {{ policy.bucket }}
                    {% if '*' in policy.actions %}
                      <span class="opacity-75">(full)</span>
@@ -149,38 +183,18 @@
                  <span class="badge bg-secondary bg-opacity-10 text-secondary">No policies</span>
                {% endfor %}
              </div>
-            </td>
+            </div>
-            <td class="text-end">
+            <button class="btn btn-outline-primary btn-sm w-100" type="button" data-policy-editor data-access-key="{{ user.access_key }}">
-              <div class="btn-group btn-group-sm" role="group">
+              <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16">
                <button class="btn btn-outline-primary" type="button" data-rotate-user="{{ user.access_key }}" title="Rotate Secret">
                  <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
                    <path d="M11.534 7h3.932a.25.25 0 0 1 .192.41l-1.966 2.36a.25.25 0 0 1-.384 0l-1.966-2.36a.25.25 0 0 1 .192-.41zm-11 2h3.932a.25.25 0 0 0 .192-.41L2.692 6.23a.25.25 0 0 0-.384 0L.342 8.59A.25.25 0 0 0 .534 9z"/>
                    <path fill-rule="evenodd" d="M8 3c-1.552 0-2.94.707-3.857 1.818a.5.5 0 1 1-.771-.636A6.002 6.002 0 0 1 13.917 7H12.9A5.002 5.002 0 0 0 8 3zM3.1 9a5.002 5.002 0 0 0 8.757 2.182.5.5 0 1 1 .771.636A6.002 6.002 0 0 1 2.083 9H3.1z"/>
                  </svg>
                </button>
                <button class="btn btn-outline-secondary" type="button" data-edit-user="{{ user.access_key }}" data-display-name="{{ user.display_name }}" title="Edit User">
                  <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
                    <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5z"/>
                  </svg>
                </button>
                <button class="btn btn-outline-secondary" type="button" data-policy-editor data-access-key="{{ user.access_key }}" title="Edit Policies">
                  <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
                <path d="M8 4.754a3.246 3.246 0 1 0 0 6.492 3.246 3.246 0 0 0 0-6.492zM5.754 8a2.246 2.246 0 1 1 4.492 0 2.246 2.246 0 0 1-4.492 0z"/>
                <path d="M9.796 1.343c-.527-1.79-3.065-1.79-3.592 0l-.094.319a.873.873 0 0 1-1.255.52l-.292-.16c-1.64-.892-3.433.902-2.54 2.541l.159.292a.873.873 0 0 1-.52 1.255l-.319.094c-1.79.527-1.79 3.065 0 3.592l.319.094a.873.873 0 0 1 .52 1.255l-.16.292c-.892 1.64.901 3.434 2.541 2.54l.292-.159a.873.873 0 0 1 1.255.52l.094.319c.527 1.79 3.065 1.79 3.592 0l.094-.319a.873.873 0 0 1 1.255-.52l.292.16c1.64.893 3.434-.902 2.54-2.541l-.159-.292a.873.873 0 0 1 .52-1.255l.319-.094c1.79-.527 1.79-3.065 0-3.592l-.319-.094a.873.873 0 0 1-.52-1.255l.16-.292c.893-1.64-.902-3.433-2.541-2.54l-.292.159a.873.873 0 0 1-1.255-.52l-.094-.319z"/>
              </svg>
-                </button>
+              Manage Policies
                <button class="btn btn-outline-danger" type="button" data-delete-user="{{ user.access_key }}" title="Delete User">
                  <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
                    <path d="M5.5 5.5a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 .5-.5zm3 .5v6a.5.5 0 0 1-1 0v-6a.5.5 0 0 1 1 0z"/>
                    <path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
                  </svg>
            </button>
          </div>
-            </td>
+        </div>
-          </tr>
+      </div>
      {% endfor %}
        </tbody>
      </table>
    </div>
    {% else %}
    <div class="empty-state text-center py-5">
@@ -341,8 +355,8 @@
      <div class="modal-header border-0 pb-0">
        <h1 class="modal-title fs-5 fw-semibold">
          <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="text-danger" viewBox="0 0 16 16">
-            <path d="M1 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1H1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6z"/>
+            <path d="M11 5a3 3 0 1 1-6 0 3 3 0 0 1 6 0M8 7a2 2 0 1 0 0-4 2 2 0 0 0 0 4m.256 7a4.5 4.5 0 0 1-.229-1.004H3c.001-.246.154-.986.832-1.664C4.484 10.68 5.711 10 8 10q.39 0 .74.025c.226-.341.496-.65.804-.918Q9.077 9.014 8 9c-5 0-6 3-6 4s1 1 1 1h5.256Z"/>
-            <path fill-rule="evenodd" d="M11 1.5v1h5v1h-1v9a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2v-9H0v-1h5v-1a1 1 0 0 1 1-1h4a1 1 0 0 1 1 1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118z"/>
+            <path d="M12.5 16a3.5 3.5 0 1 0 0-7 3.5 3.5 0 0 0 0 7m-.646-4.854.646.647.646-.647a.5.5 0 0 1 .708.708l-.647.646.647.646a.5.5 0 0 1-.708.708l-.646-.647-.646.647a.5.5 0 0 1-.708-.708l.647-.646-.647-.646a.5.5 0 0 1 .708-.708"/>
          </svg>
          Delete User
        </h1>
@@ -440,265 +454,20 @@
 {% block extra_scripts %}
 {{ super() }}
 <script src="{{ url_for('static', filename='js/iam-management.js') }}"></script>
 <script>
-  (function () {
+  IAMManagement.init({
-    const currentUserKey = {{ principal.access_key | tojson }};
+    users: JSON.parse(document.getElementById('iamUsersJson').textContent || '[]'),
-    const configCopyButtons = document.querySelectorAll('.config-copy');
+    currentUserKey: {{ principal.access_key | tojson }},
-    configCopyButtons.forEach((button) => {
+    iamLocked: {{ iam_locked | tojson }},
-      button.addEventListener('click', async () => {
+    csrfToken: "{{ csrf_token() }}",
-        const targetId = button.dataset.copyTarget;
+    endpoints: {
-        const target = document.getElementById(targetId);
+      createUser: "{{ url_for('ui.create_iam_user') }}",
-        if (!target) return;
+      updateUser: "{{ url_for('ui.update_iam_user', access_key='ACCESS_KEY') }}",
-        const text = target.innerText;
+      deleteUser: "{{ url_for('ui.delete_iam_user', access_key='ACCESS_KEY') }}",
-        try {
+      updatePolicies: "{{ url_for('ui.update_iam_policies', access_key='ACCESS_KEY') }}",
-          await navigator.clipboard.writeText(text);
+      rotateSecret: "{{ url_for('ui.rotate_iam_secret', access_key='ACCESS_KEY') }}"
          button.textContent = 'Copied!';
          setTimeout(() => {
            button.textContent = 'Copy JSON';
          }, 1500);
        } catch (err) {
          console.error('Unable to copy IAM config', err);
    }
  });
    });
    const secretCopyButton = document.querySelector('[data-secret-copy]');
    if (secretCopyButton) {
      secretCopyButton.addEventListener('click', async () => {
        const secretInput = document.getElementById('disclosedSecretValue');
        if (!secretInput) return;
        try {
          await navigator.clipboard.writeText(secretInput.value);
          secretCopyButton.textContent = 'Copied!';
          setTimeout(() => {
            secretCopyButton.textContent = 'Copy';
          }, 1500);
        } catch (err) {
          console.error('Unable to copy IAM secret', err);
        }
      });
    }
    const iamUsersData = document.getElementById('iamUsersJson');
    const users = iamUsersData ? JSON.parse(iamUsersData.textContent || '[]') : [];
    const policyModalEl = document.getElementById('policyEditorModal');
    const policyModal = new bootstrap.Modal(policyModalEl);
    const userLabelEl = document.getElementById('policyEditorUserLabel');
    const userInputEl = document.getElementById('policyEditorUser');
    const textareaEl = document.getElementById('policyEditorDocument');
    const formEl = document.getElementById('policyEditorForm');
    const templateButtons = document.querySelectorAll('[data-policy-template]');
    const iamLocked = {{ iam_locked | tojson }};
    if (iamLocked) return;
    const userPolicies = (accessKey) => {
      const target = users.find((user) => user.access_key === accessKey);
      return target ? JSON.stringify(target.policies, null, 2) : '';
    };
    const applyTemplate = (name) => {
      const templates = {
        full: [
          {
            bucket: '*',
            actions: ['list', 'read', 'write', 'delete', 'share', 'policy', 'replication', 'iam:list_users', 'iam:*'],
          },
        ],
        readonly: [
          {
            bucket: '*',
            actions: ['list', 'read'],
          },
        ],
        writer: [
          {
            bucket: '*',
            actions: ['list', 'read', 'write'],
          },
        ],
      };
      if (templates[name]) {
        textareaEl.value = JSON.stringify(templates[name], null, 2);
      }
    };
    templateButtons.forEach((button) => {
      button.addEventListener('click', () => applyTemplate(button.dataset.policyTemplate));
    });
    const createUserPoliciesEl = document.getElementById('createUserPolicies');
    const createTemplateButtons = document.querySelectorAll('[data-create-policy-template]');
    const applyCreateTemplate = (name) => {
      const templates = {
        full: [
          {
            bucket: '*',
            actions: ['list', 'read', 'write', 'delete', 'share', 'policy', 'replication', 'iam:list_users', 'iam:*'],
          },
        ],
        readonly: [
          {
            bucket: '*',
            actions: ['list', 'read'],
          },
        ],
        writer: [
          {
            bucket: '*',
            actions: ['list', 'read', 'write'],
          },
        ],
      };
      if (templates[name] && createUserPoliciesEl) {
        createUserPoliciesEl.value = JSON.stringify(templates[name], null, 2);
      }
    };
    createTemplateButtons.forEach((button) => {
      button.addEventListener('click', () => applyCreateTemplate(button.dataset.createPolicyTemplate));
    });
    formEl?.addEventListener('submit', (event) => {
      const key = userInputEl.value;
      if (!key) {
        event.preventDefault();
        return;
      }
      const template = formEl.dataset.actionTemplate;
      formEl.action = template.replace('ACCESS_KEY_PLACEHOLDER', key);
    });
    document.querySelectorAll('[data-policy-editor]').forEach((button) => {
      button.addEventListener('click', () => {
        const key = button.getAttribute('data-access-key');
        if (!key) return;
        userLabelEl.textContent = key;
        userInputEl.value = key;
        textareaEl.value = userPolicies(key);
        policyModal.show();
      });
    });
    const editUserModal = new bootstrap.Modal(document.getElementById('editUserModal'));
    const editUserForm = document.getElementById('editUserForm');
    const editUserDisplayName = document.getElementById('editUserDisplayName');
    document.querySelectorAll('[data-edit-user]').forEach(btn => {
        btn.addEventListener('click', () => {
            const key = btn.dataset.editUser;
            const name = btn.dataset.displayName;
            editUserDisplayName.value = name;
            editUserForm.action = "{{ url_for('ui.update_iam_user', access_key='ACCESS_KEY') }}".replace('ACCESS_KEY', key);
            editUserModal.show();
        });
    });
    const deleteUserModal = new bootstrap.Modal(document.getElementById('deleteUserModal'));
    const deleteUserForm = document.getElementById('deleteUserForm');
    const deleteUserLabel = document.getElementById('deleteUserLabel');
    const deleteSelfWarning = document.getElementById('deleteSelfWarning');
    document.querySelectorAll('[data-delete-user]').forEach(btn => {
        btn.addEventListener('click', () => {
            const key = btn.dataset.deleteUser;
            deleteUserLabel.textContent = key;
            deleteUserForm.action = "{{ url_for('ui.delete_iam_user', access_key='ACCESS_KEY') }}".replace('ACCESS_KEY', key);
            if (key === currentUserKey) {
                deleteSelfWarning.classList.remove('d-none');
            } else {
                deleteSelfWarning.classList.add('d-none');
            }
            deleteUserModal.show();
        });
    });
    const rotateSecretModal = new bootstrap.Modal(document.getElementById('rotateSecretModal'));
    const rotateUserLabel = document.getElementById('rotateUserLabel');
    const confirmRotateBtn = document.getElementById('confirmRotateBtn');
    const rotateCancelBtn = document.getElementById('rotateCancelBtn');
    const rotateDoneBtn = document.getElementById('rotateDoneBtn');
    const rotateSecretConfirm = document.getElementById('rotateSecretConfirm');
    const rotateSecretResult = document.getElementById('rotateSecretResult');
    const newSecretKeyInput = document.getElementById('newSecretKey');
    const copyNewSecretBtn = document.getElementById('copyNewSecret');
    let currentRotateKey = null;
    document.querySelectorAll('[data-rotate-user]').forEach(btn => {
        btn.addEventListener('click', () => {
            currentRotateKey = btn.dataset.rotateUser;
            rotateUserLabel.textContent = currentRotateKey;
            rotateSecretConfirm.classList.remove('d-none');
            rotateSecretResult.classList.add('d-none');
            confirmRotateBtn.classList.remove('d-none');
            rotateCancelBtn.classList.remove('d-none');
            rotateDoneBtn.classList.add('d-none');
            rotateSecretModal.show();
        });
    });
    confirmRotateBtn.addEventListener('click', async () => {
        if (!currentRotateKey) return;
        confirmRotateBtn.disabled = true;
        confirmRotateBtn.textContent = "Rotating...";
        try {
            const url = "{{ url_for('ui.rotate_iam_secret', access_key='ACCESS_KEY') }}".replace('ACCESS_KEY', currentRotateKey);
            const response = await fetch(url, {
                method: 'POST',
                headers: {
                    'Accept': 'application/json',
                    'X-CSRFToken': "{{ csrf_token() }}"
                }
            });
            if (!response.ok) {
                const data = await response.json();
                throw new Error(data.error || 'Failed to rotate secret');
            }
            const data = await response.json();
            newSecretKeyInput.value = data.secret_key;
            rotateSecretConfirm.classList.add('d-none');
            rotateSecretResult.classList.remove('d-none');
            confirmRotateBtn.classList.add('d-none');
            rotateCancelBtn.classList.add('d-none');
            rotateDoneBtn.classList.remove('d-none');
        } catch (err) {
            if (window.showToast) {
              window.showToast(err.message, 'Error', 'danger');
            }
            rotateSecretModal.hide();
        } finally {
            confirmRotateBtn.disabled = false;
            confirmRotateBtn.textContent = "Rotate Key";
        }
    });
    copyNewSecretBtn.addEventListener('click', async () => {
        try {
            await navigator.clipboard.writeText(newSecretKeyInput.value);
            copyNewSecretBtn.textContent = 'Copied!';
            setTimeout(() => copyNewSecretBtn.textContent = 'Copy', 1500);
        } catch (err) {
            console.error('Failed to copy', err);
        }
    });
    rotateDoneBtn.addEventListener('click', () => {
        window.location.reload();
    });
  })();
 </script>
 {% endblock %}
--- a/templates/login.html
+++ b/templates/login.html
@@ -35,7 +35,7 @@
    <div class="card shadow-lg login-card position-relative">
      <div class="card-body p-4 p-md-5">
        <div class="text-center mb-4 d-lg-none">
-          <img src="{{ url_for('static', filename='images/MyFISO.png') }}" alt="MyFSIO" width="48" height="48" class="mb-3 rounded-3">
+          <img src="{{ url_for('static', filename='images/MyFSIO.png') }}" alt="MyFSIO" width="48" height="48" class="mb-3 rounded-3">
          <h2 class="h4 fw-bold">MyFSIO</h2>
        </div>
        <h2 class="h4 mb-1 d-none d-lg-block">Sign in</h2>
--- a/templates/metrics.html
+++ b/templates/metrics.html
@@ -6,11 +6,11 @@
    <p class="text-muted mb-0">Real-time server performance and storage usage</p>
  </div>
  <div class="d-flex gap-2 align-items-center">
-    <span class="d-flex align-items-center gap-2 text-muted small">
+    <span class="d-flex align-items-center gap-2 text-muted small" id="metricsLiveIndicator">
      <span class="live-indicator"></span>
-      Live
+      Auto-refresh: <span id="refreshCountdown">5</span>s
    </span>
-    <button class="btn btn-outline-secondary btn-sm" onclick="window.location.reload()">
+    <button class="btn btn-outline-secondary btn-sm" id="refreshMetricsBtn">
      <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="bi bi-arrow-clockwise me-1" viewBox="0 0 16 16">
        <path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z"/>
        <path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z"/>
@@ -32,15 +32,13 @@
            </svg>
          </div>
        </div>
-        <h2 class="display-6 fw-bold mb-2 stat-value">{{ cpu_percent }}<span class="fs-4 fw-normal text-muted">%</span></h2>
+        <h2 class="display-6 fw-bold mb-2 stat-value"><span data-metric="cpu_percent">{{ cpu_percent }}</span><span class="fs-4 fw-normal text-muted">%</span></h2>
        <div class="progress" style="height: 8px; border-radius: 4px;">
-          <div class="progress-bar {% if cpu_percent > 80 %}bg-danger{% elif cpu_percent > 50 %}bg-warning{% else %}bg-primary{% endif %}" role="progressbar" style="width: {{ cpu_percent }}%"></div>
+          <div class="progress-bar bg-primary" data-metric="cpu_bar" role="progressbar" style="width: {{ cpu_percent }}%"></div>
        </div>
        <div class="mt-2 d-flex justify-content-between">
          <small class="text-muted">Current load</small>
-          <small class="{% if cpu_percent > 80 %}text-danger{% elif cpu_percent > 50 %}text-warning{% else %}text-success{% endif %}">
+          <small data-metric="cpu_status" class="text-success">Normal</small>
            {% if cpu_percent > 80 %}High{% elif cpu_percent > 50 %}Medium{% else %}Normal{% endif %}
          </small>
        </div>
      </div>
    </div>
@@ -57,13 +55,13 @@
            </svg>
          </div>
        </div>
-        <h2 class="display-6 fw-bold mb-2 stat-value">{{ memory.percent }}<span class="fs-4 fw-normal text-muted">%</span></h2>
+        <h2 class="display-6 fw-bold mb-2 stat-value"><span data-metric="memory_percent">{{ memory.percent }}</span><span class="fs-4 fw-normal text-muted">%</span></h2>
        <div class="progress" style="height: 8px; border-radius: 4px;">
-          <div class="progress-bar bg-info" role="progressbar" style="width: {{ memory.percent }}%"></div>
+          <div class="progress-bar bg-info" data-metric="memory_bar" role="progressbar" style="width: {{ memory.percent }}%"></div>
        </div>
        <div class="mt-2 d-flex justify-content-between">
-          <small class="text-muted">{{ memory.used }} used</small>
+          <small class="text-muted"><span data-metric="memory_used">{{ memory.used }}</span> used</small>
-          <small class="text-muted">{{ memory.total }} total</small>
+          <small class="text-muted"><span data-metric="memory_total">{{ memory.total }}</span> total</small>
        </div>
      </div>
    </div>
@@ -81,13 +79,13 @@
            </svg>
          </div>
        </div>
-        <h2 class="display-6 fw-bold mb-2 stat-value">{{ disk.percent }}<span class="fs-4 fw-normal text-muted">%</span></h2>
+        <h2 class="display-6 fw-bold mb-2 stat-value"><span data-metric="disk_percent">{{ disk.percent }}</span><span class="fs-4 fw-normal text-muted">%</span></h2>
        <div class="progress" style="height: 8px; border-radius: 4px;">
-          <div class="progress-bar {% if disk.percent > 90 %}bg-danger{% elif disk.percent > 75 %}bg-warning{% else %}bg-warning{% endif %}" role="progressbar" style="width: {{ disk.percent }}%"></div>
+          <div class="progress-bar bg-warning" data-metric="disk_bar" role="progressbar" style="width: {{ disk.percent }}%"></div>
        </div>
        <div class="mt-2 d-flex justify-content-between">
-          <small class="text-muted">{{ disk.free }} free</small>
+          <small class="text-muted"><span data-metric="disk_free">{{ disk.free }}</span> free</small>
-          <small class="text-muted">{{ disk.total }} total</small>
+          <small class="text-muted"><span data-metric="disk_total">{{ disk.total }}</span> total</small>
        </div>
      </div>
    </div>
@@ -104,15 +102,15 @@
            </svg>
          </div>
        </div>
-        <h2 class="display-6 fw-bold mb-2 stat-value">{{ app.storage_used }}</h2>
+        <h2 class="display-6 fw-bold mb-2 stat-value" data-metric="storage_used">{{ app.storage_used }}</h2>
        <div class="d-flex gap-3 mt-3">
          <div class="text-center flex-fill">
-            <div class="h5 fw-bold mb-0">{{ app.buckets }}</div>
+            <div class="h5 fw-bold mb-0" data-metric="buckets_count">{{ app.buckets }}</div>
            <small class="text-muted">Buckets</small>
          </div>
          <div class="vr"></div>
          <div class="text-center flex-fill">
-            <div class="h5 fw-bold mb-0">{{ app.objects }}</div>
+            <div class="h5 fw-bold mb-0" data-metric="objects_count">{{ app.objects }}</div>
            <small class="text-muted">Objects</small>
          </div>
        </div>
@@ -219,24 +217,42 @@
  </div>
  <div class="col-lg-4">
-    <div class="card shadow-sm border-0 h-100 overflow-hidden" style="background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);">
+    {% set has_issues = (cpu_percent > 80) or (memory.percent > 85) or (disk.percent > 90) %}
    <div class="card shadow-sm border-0 h-100 overflow-hidden" style="background: linear-gradient(135deg, {% if has_issues %}#ef4444 0%, #f97316{% else %}#3b82f6 0%, #8b5cf6{% endif %} 100%);">
      <div class="card-body p-4 d-flex flex-column justify-content-center text-white position-relative">
        <div class="position-absolute top-0 end-0 opacity-25" style="transform: translate(20%, -20%);">
-          <svg xmlns="http://www.w3.org/2000/svg" width="160" height="160" fill="currentColor" class="bi bi-cloud-check" viewBox="0 0 16 16">
+          <svg xmlns="http://www.w3.org/2000/svg" width="160" height="160" fill="currentColor" class="bi bi-{% if has_issues %}exclamation-triangle{% else %}cloud-check{% endif %}" viewBox="0 0 16 16">
            {% if has_issues %}
            <path d="M7.938 2.016A.13.13 0 0 1 8.002 2a.13.13 0 0 1 .063.016.146.146 0 0 1 .054.057l6.857 11.667c.036.06.035.124.002.183a.163.163 0 0 1-.054.06.116.116 0 0 1-.066.017H1.146a.115.115 0 0 1-.066-.017.163.163 0 0 1-.054-.06.176.176 0 0 1 .002-.183L7.884 2.073a.147.147 0 0 1 .054-.057zm1.044-.45a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566z"/>
            <path d="M7.002 12a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 5.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995z"/>
            {% else %}
            <path fill-rule="evenodd" d="M10.354 6.146a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708 0l-1.5-1.5a.5.5 0 1 1 .708-.708L7 8.793l2.646-2.647a.5.5 0 0 1 .708 0z"/>
            <path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383z"/>
            {% endif %}
          </svg>
        </div>
        <div class="mb-3">
-          <span class="badge bg-white text-primary fw-semibold px-3 py-2">
+          <span class="badge bg-white {% if has_issues %}text-danger{% else %}text-primary{% endif %} fw-semibold px-3 py-2">
-            <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="bi bi-check-circle-fill me-1" viewBox="0 0 16 16">
+            <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="bi bi-{% if has_issues %}exclamation-circle-fill{% else %}check-circle-fill{% endif %} me-1" viewBox="0 0 16 16">
              {% if has_issues %}
              <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM8 4a.905.905 0 0 0-.9.995l.35 3.507a.552.552 0 0 0 1.1 0l.35-3.507A.905.905 0 0 0 8 4zm.002 6a1 1 0 1 0 0 2 1 1 0 0 0 0-2z"/>
              {% else %}
              <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/>
              {% endif %}
            </svg>
            v{{ app.version }}
          </span>
        </div>
-        <h4 class="card-title fw-bold mb-3">System Status</h4>
+        <h4 class="card-title fw-bold mb-3">System Health</h4>
-        <p class="card-text opacity-90 mb-4">All systems operational. Your storage infrastructure is running smoothly with no detected issues.</p>
+        {% if has_issues %}
        <ul class="list-unstyled small mb-4 opacity-90">
          {% if cpu_percent > 80 %}<li class="mb-1">CPU usage is high ({{ cpu_percent }}%)</li>{% endif %}
          {% if memory.percent > 85 %}<li class="mb-1">Memory usage is high ({{ memory.percent }}%)</li>{% endif %}
          {% if disk.percent > 90 %}<li class="mb-1">Disk space is critically low ({{ disk.percent }}% used)</li>{% endif %}
        </ul>
        {% else %}
        <p class="card-text opacity-90 mb-4 small">All resources are within normal operating parameters.</p>
        {% endif %}
        <div class="d-flex gap-4">
          <div>
            <div class="h3 fw-bold mb-0">{{ app.uptime_days }}d</div>
@@ -252,3 +268,109 @@
  </div>
 </div>
 {% endblock %}
 {% block extra_scripts %}
 <script>
 (function() {
  var refreshInterval = 5000;
  var countdown = 5;
  var countdownEl = document.getElementById('refreshCountdown');
  var refreshBtn = document.getElementById('refreshMetricsBtn');
  var countdownTimer = null;
  var fetchTimer = null;
  function updateMetrics() {
    fetch('/ui/metrics/api')
      .then(function(resp) { return resp.json(); })
      .then(function(data) {
        var el;
        el = document.querySelector('[data-metric="cpu_percent"]');
        if (el) el.textContent = data.cpu_percent;
        el = document.querySelector('[data-metric="cpu_bar"]');
        if (el) {
          el.style.width = data.cpu_percent + '%';
          el.className = 'progress-bar ' + (data.cpu_percent > 80 ? 'bg-danger' : data.cpu_percent > 50 ? 'bg-warning' : 'bg-primary');
        }
        el = document.querySelector('[data-metric="cpu_status"]');
        if (el) {
          el.textContent = data.cpu_percent > 80 ? 'High' : data.cpu_percent > 50 ? 'Medium' : 'Normal';
          el.className = data.cpu_percent > 80 ? 'text-danger' : data.cpu_percent > 50 ? 'text-warning' : 'text-success';
        }
        el = document.querySelector('[data-metric="memory_percent"]');
        if (el) el.textContent = data.memory.percent;
        el = document.querySelector('[data-metric="memory_bar"]');
        if (el) el.style.width = data.memory.percent + '%';
        el = document.querySelector('[data-metric="memory_used"]');
        if (el) el.textContent = data.memory.used;
        el = document.querySelector('[data-metric="memory_total"]');
        if (el) el.textContent = data.memory.total;
        el = document.querySelector('[data-metric="disk_percent"]');
        if (el) el.textContent = data.disk.percent;
        el = document.querySelector('[data-metric="disk_bar"]');
        if (el) {
          el.style.width = data.disk.percent + '%';
          el.className = 'progress-bar ' + (data.disk.percent > 90 ? 'bg-danger' : 'bg-warning');
        }
        el = document.querySelector('[data-metric="disk_free"]');
        if (el) el.textContent = data.disk.free;
        el = document.querySelector('[data-metric="disk_total"]');
        if (el) el.textContent = data.disk.total;
        el = document.querySelector('[data-metric="storage_used"]');
        if (el) el.textContent = data.app.storage_used;
        el = document.querySelector('[data-metric="buckets_count"]');
        if (el) el.textContent = data.app.buckets;
        el = document.querySelector('[data-metric="objects_count"]');
        if (el) el.textContent = data.app.objects;
        countdown = 5;
      })
      .catch(function(err) {
        console.error('Metrics fetch error:', err);
      });
  }
  function startCountdown() {
    if (countdownTimer) clearInterval(countdownTimer);
    countdown = 5;
    if (countdownEl) countdownEl.textContent = countdown;
    countdownTimer = setInterval(function() {
      countdown--;
      if (countdownEl) countdownEl.textContent = countdown;
      if (countdown <= 0) {
        countdown = 5;
      }
    }, 1000);
  }
  function startPolling() {
    if (fetchTimer) clearInterval(fetchTimer);
    fetchTimer = setInterval(function() {
      if (!document.hidden) {
        updateMetrics();
      }
    }, refreshInterval);
    startCountdown();
  }
  if (refreshBtn) {
    refreshBtn.addEventListener('click', function() {
      updateMetrics();
      countdown = 5;
      if (countdownEl) countdownEl.textContent = countdown;
    });
  }
  document.addEventListener('visibilitychange', function() {
    if (!document.hidden) {
      updateMetrics();
      startPolling();
    }
  });
  startPolling();
 })();
 </script>
 {% endblock %}
--- a/tests/test_access_logging.py
+++ b/tests/test_access_logging.py
@@ -0,0 +1,339 @@
 import io
 import json
 import time
 from datetime import datetime, timezone
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 import pytest
 from app.access_logging import (
    AccessLogEntry,
    AccessLoggingService,
    LoggingConfiguration,
 )
 from app.storage import ObjectStorage
 class TestAccessLogEntry:
    def test_default_values(self):
        entry = AccessLogEntry()
        assert entry.bucket_owner == "-"
        assert entry.bucket == "-"
        assert entry.remote_ip == "-"
        assert entry.requester == "-"
        assert entry.operation == "-"
        assert entry.http_status == 200
        assert len(entry.request_id) == 16
    def test_to_log_line(self):
        entry = AccessLogEntry(
            bucket_owner="owner123",
            bucket="my-bucket",
            remote_ip="192.168.1.1",
            requester="user456",
            request_id="REQ123456789012",
            operation="REST.PUT.OBJECT",
            key="test/key.txt",
            request_uri="PUT /my-bucket/test/key.txt HTTP/1.1",
            http_status=200,
            bytes_sent=1024,
            object_size=2048,
            total_time_ms=150,
            referrer="http://example.com",
            user_agent="aws-cli/2.0",
            version_id="v1",
        )
        log_line = entry.to_log_line()
        assert "owner123" in log_line
        assert "my-bucket" in log_line
        assert "192.168.1.1" in log_line
        assert "user456" in log_line
        assert "REST.PUT.OBJECT" in log_line
        assert "test/key.txt" in log_line
        assert "200" in log_line
    def test_to_dict(self):
        entry = AccessLogEntry(
            bucket_owner="owner",
            bucket="bucket",
            remote_ip="10.0.0.1",
            requester="admin",
            request_id="ABC123",
            operation="REST.GET.OBJECT",
            key="file.txt",
            request_uri="GET /bucket/file.txt HTTP/1.1",
            http_status=200,
            bytes_sent=512,
            object_size=512,
            total_time_ms=50,
        )
        result = entry.to_dict()
        assert result["bucket_owner"] == "owner"
        assert result["bucket"] == "bucket"
        assert result["remote_ip"] == "10.0.0.1"
        assert result["requester"] == "admin"
        assert result["operation"] == "REST.GET.OBJECT"
        assert result["key"] == "file.txt"
        assert result["http_status"] == 200
        assert result["bytes_sent"] == 512
 class TestLoggingConfiguration:
    def test_default_values(self):
        config = LoggingConfiguration(target_bucket="log-bucket")
        assert config.target_bucket == "log-bucket"
        assert config.target_prefix == ""
        assert config.enabled is True
    def test_to_dict(self):
        config = LoggingConfiguration(
            target_bucket="logs",
            target_prefix="access-logs/",
            enabled=True,
        )
        result = config.to_dict()
        assert "LoggingEnabled" in result
        assert result["LoggingEnabled"]["TargetBucket"] == "logs"
        assert result["LoggingEnabled"]["TargetPrefix"] == "access-logs/"
    def test_from_dict(self):
        data = {
            "LoggingEnabled": {
                "TargetBucket": "my-logs",
                "TargetPrefix": "bucket-logs/",
            }
        }
        config = LoggingConfiguration.from_dict(data)
        assert config is not None
        assert config.target_bucket == "my-logs"
        assert config.target_prefix == "bucket-logs/"
        assert config.enabled is True
    def test_from_dict_no_logging(self):
        data = {}
        config = LoggingConfiguration.from_dict(data)
        assert config is None
@pytest.fixture
 def storage(tmp_path: Path):
    storage_root = tmp_path / "data"
    storage_root.mkdir(parents=True)
    return ObjectStorage(storage_root)
@pytest.fixture
 def logging_service(tmp_path: Path, storage):
    service = AccessLoggingService(
        tmp_path,
        flush_interval=3600,
        max_buffer_size=10,
    )
    service.set_storage(storage)
    yield service
    service.shutdown()
 class TestAccessLoggingService:
    def test_get_bucket_logging_not_configured(self, logging_service):
        result = logging_service.get_bucket_logging("unconfigured-bucket")
        assert result is None
    def test_set_and_get_bucket_logging(self, logging_service):
        config = LoggingConfiguration(
            target_bucket="log-bucket",
            target_prefix="logs/",
        )
        logging_service.set_bucket_logging("source-bucket", config)
        retrieved = logging_service.get_bucket_logging("source-bucket")
        assert retrieved is not None
        assert retrieved.target_bucket == "log-bucket"
        assert retrieved.target_prefix == "logs/"
    def test_delete_bucket_logging(self, logging_service):
        config = LoggingConfiguration(target_bucket="logs")
        logging_service.set_bucket_logging("to-delete", config)
        assert logging_service.get_bucket_logging("to-delete") is not None
        logging_service.delete_bucket_logging("to-delete")
        logging_service._configs.clear()
        assert logging_service.get_bucket_logging("to-delete") is None
    def test_log_request_no_config(self, logging_service):
        logging_service.log_request(
            "no-config-bucket",
            operation="REST.GET.OBJECT",
            key="test.txt",
        )
        stats = logging_service.get_stats()
        assert stats["buffered_entries"] == 0
    def test_log_request_with_config(self, logging_service, storage):
        storage.create_bucket("log-target")
        config = LoggingConfiguration(
            target_bucket="log-target",
            target_prefix="access/",
        )
        logging_service.set_bucket_logging("source-bucket", config)
        logging_service.log_request(
            "source-bucket",
            operation="REST.PUT.OBJECT",
            key="uploaded.txt",
            remote_ip="192.168.1.100",
            requester="test-user",
            http_status=200,
            bytes_sent=1024,
        )
        stats = logging_service.get_stats()
        assert stats["buffered_entries"] == 1
    def test_log_request_disabled_config(self, logging_service):
        config = LoggingConfiguration(
            target_bucket="logs",
            enabled=False,
        )
        logging_service.set_bucket_logging("disabled-bucket", config)
        logging_service.log_request(
            "disabled-bucket",
            operation="REST.GET.OBJECT",
            key="test.txt",
        )
        stats = logging_service.get_stats()
        assert stats["buffered_entries"] == 0
    def test_flush_buffer(self, logging_service, storage):
        storage.create_bucket("flush-target")
        config = LoggingConfiguration(
            target_bucket="flush-target",
            target_prefix="logs/",
        )
        logging_service.set_bucket_logging("flush-source", config)
        for i in range(3):
            logging_service.log_request(
                "flush-source",
                operation="REST.GET.OBJECT",
                key=f"file{i}.txt",
            )
        logging_service.flush()
        objects = storage.list_objects_all("flush-target")
        assert len(objects) >= 1
    def test_auto_flush_on_buffer_size(self, logging_service, storage):
        storage.create_bucket("auto-flush-target")
        config = LoggingConfiguration(
            target_bucket="auto-flush-target",
            target_prefix="",
        )
        logging_service.set_bucket_logging("auto-source", config)
        for i in range(15):
            logging_service.log_request(
                "auto-source",
                operation="REST.GET.OBJECT",
                key=f"file{i}.txt",
            )
        objects = storage.list_objects_all("auto-flush-target")
        assert len(objects) >= 1
    def test_get_stats(self, logging_service, storage):
        storage.create_bucket("stats-target")
        config = LoggingConfiguration(target_bucket="stats-target")
        logging_service.set_bucket_logging("stats-bucket", config)
        logging_service.log_request(
            "stats-bucket",
            operation="REST.GET.OBJECT",
            key="test.txt",
        )
        stats = logging_service.get_stats()
        assert "buffered_entries" in stats
        assert "target_buckets" in stats
        assert stats["buffered_entries"] >= 1
    def test_shutdown_flushes_buffer(self, tmp_path, storage):
        storage.create_bucket("shutdown-target")
        service = AccessLoggingService(tmp_path, flush_interval=3600, max_buffer_size=100)
        service.set_storage(storage)
        config = LoggingConfiguration(target_bucket="shutdown-target")
        service.set_bucket_logging("shutdown-source", config)
        service.log_request(
            "shutdown-source",
            operation="REST.PUT.OBJECT",
            key="final.txt",
        )
        service.shutdown()
        objects = storage.list_objects_all("shutdown-target")
        assert len(objects) >= 1
    def test_logging_caching(self, logging_service):
        config = LoggingConfiguration(target_bucket="cached-logs")
        logging_service.set_bucket_logging("cached-bucket", config)
        logging_service.get_bucket_logging("cached-bucket")
        assert "cached-bucket" in logging_service._configs
    def test_log_request_all_fields(self, logging_service, storage):
        storage.create_bucket("detailed-target")
        config = LoggingConfiguration(target_bucket="detailed-target", target_prefix="detailed/")
        logging_service.set_bucket_logging("detailed-source", config)
        logging_service.log_request(
            "detailed-source",
            operation="REST.PUT.OBJECT",
            key="detailed/file.txt",
            remote_ip="10.0.0.1",
            requester="admin-user",
            request_uri="PUT /detailed-source/detailed/file.txt HTTP/1.1",
            http_status=201,
            error_code="",
            bytes_sent=2048,
            object_size=2048,
            total_time_ms=100,
            referrer="http://admin.example.com",
            user_agent="curl/7.68.0",
            version_id="v1.0",
            request_id="CUSTOM_REQ_ID",
        )
        stats = logging_service.get_stats()
        assert stats["buffered_entries"] == 1
    def test_failed_flush_returns_to_buffer(self, logging_service):
        config = LoggingConfiguration(target_bucket="nonexistent-target")
        logging_service.set_bucket_logging("fail-source", config)
        logging_service.log_request(
            "fail-source",
            operation="REST.GET.OBJECT",
            key="test.txt",
        )
        initial_count = logging_service.get_stats()["buffered_entries"]
        logging_service.flush()
        final_count = logging_service.get_stats()["buffered_entries"]
        assert final_count >= initial_count
--- a/tests/test_acl.py
+++ b/tests/test_acl.py
@@ -0,0 +1,284 @@
 import json
 from pathlib import Path
 import pytest
 from app.acl import (
    Acl,
    AclGrant,
    AclService,
    ACL_PERMISSION_FULL_CONTROL,
    ACL_PERMISSION_READ,
    ACL_PERMISSION_WRITE,
    ACL_PERMISSION_READ_ACP,
    ACL_PERMISSION_WRITE_ACP,
    GRANTEE_ALL_USERS,
    GRANTEE_AUTHENTICATED_USERS,
    PERMISSION_TO_ACTIONS,
    create_canned_acl,
    CANNED_ACLS,
 )
 class TestAclGrant:
    def test_to_dict(self):
        grant = AclGrant(grantee="user123", permission=ACL_PERMISSION_READ)
        result = grant.to_dict()
        assert result == {"grantee": "user123", "permission": "READ"}
    def test_from_dict(self):
        data = {"grantee": "admin", "permission": "FULL_CONTROL"}
        grant = AclGrant.from_dict(data)
        assert grant.grantee == "admin"
        assert grant.permission == ACL_PERMISSION_FULL_CONTROL
 class TestAcl:
    def test_to_dict(self):
        acl = Acl(
            owner="owner-user",
            grants=[
                AclGrant(grantee="owner-user", permission=ACL_PERMISSION_FULL_CONTROL),
                AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ),
            ],
        )
        result = acl.to_dict()
        assert result["owner"] == "owner-user"
        assert len(result["grants"]) == 2
        assert result["grants"][0]["grantee"] == "owner-user"
        assert result["grants"][1]["grantee"] == "*"
    def test_from_dict(self):
        data = {
            "owner": "the-owner",
            "grants": [
                {"grantee": "the-owner", "permission": "FULL_CONTROL"},
                {"grantee": "authenticated", "permission": "READ"},
            ],
        }
        acl = Acl.from_dict(data)
        assert acl.owner == "the-owner"
        assert len(acl.grants) == 2
        assert acl.grants[0].grantee == "the-owner"
        assert acl.grants[1].grantee == GRANTEE_AUTHENTICATED_USERS
    def test_from_dict_empty_grants(self):
        data = {"owner": "solo-owner"}
        acl = Acl.from_dict(data)
        assert acl.owner == "solo-owner"
        assert len(acl.grants) == 0
    def test_get_allowed_actions_owner(self):
        acl = Acl(owner="owner123", grants=[])
        actions = acl.get_allowed_actions("owner123", is_authenticated=True)
        assert actions == PERMISSION_TO_ACTIONS[ACL_PERMISSION_FULL_CONTROL]
    def test_get_allowed_actions_all_users(self):
        acl = Acl(
            owner="owner",
            grants=[AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ)],
        )
        actions = acl.get_allowed_actions(None, is_authenticated=False)
        assert "read" in actions
        assert "list" in actions
        assert "write" not in actions
    def test_get_allowed_actions_authenticated_users(self):
        acl = Acl(
            owner="owner",
            grants=[AclGrant(grantee=GRANTEE_AUTHENTICATED_USERS, permission=ACL_PERMISSION_WRITE)],
        )
        actions_authenticated = acl.get_allowed_actions("some-user", is_authenticated=True)
        assert "write" in actions_authenticated
        assert "delete" in actions_authenticated
        actions_anonymous = acl.get_allowed_actions(None, is_authenticated=False)
        assert "write" not in actions_anonymous
    def test_get_allowed_actions_specific_grantee(self):
        acl = Acl(
            owner="owner",
            grants=[
                AclGrant(grantee="user-abc", permission=ACL_PERMISSION_READ),
                AclGrant(grantee="user-xyz", permission=ACL_PERMISSION_WRITE),
            ],
        )
        abc_actions = acl.get_allowed_actions("user-abc", is_authenticated=True)
        assert "read" in abc_actions
        assert "list" in abc_actions
        assert "write" not in abc_actions
        xyz_actions = acl.get_allowed_actions("user-xyz", is_authenticated=True)
        assert "write" in xyz_actions
        assert "read" not in xyz_actions
    def test_get_allowed_actions_combined(self):
        acl = Acl(
            owner="owner",
            grants=[
                AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ),
                AclGrant(grantee="special-user", permission=ACL_PERMISSION_WRITE),
            ],
        )
        actions = acl.get_allowed_actions("special-user", is_authenticated=True)
        assert "read" in actions
        assert "list" in actions
        assert "write" in actions
        assert "delete" in actions
 class TestCannedAcls:
    def test_private_acl(self):
        acl = create_canned_acl("private", "the-owner")
        assert acl.owner == "the-owner"
        assert len(acl.grants) == 1
        assert acl.grants[0].grantee == "the-owner"
        assert acl.grants[0].permission == ACL_PERMISSION_FULL_CONTROL
    def test_public_read_acl(self):
        acl = create_canned_acl("public-read", "owner")
        assert acl.owner == "owner"
        has_owner_full_control = any(
            g.grantee == "owner" and g.permission == ACL_PERMISSION_FULL_CONTROL for g in acl.grants
        )
        has_public_read = any(
            g.grantee == GRANTEE_ALL_USERS and g.permission == ACL_PERMISSION_READ for g in acl.grants
        )
        assert has_owner_full_control
        assert has_public_read
    def test_public_read_write_acl(self):
        acl = create_canned_acl("public-read-write", "owner")
        assert acl.owner == "owner"
        has_public_read = any(
            g.grantee == GRANTEE_ALL_USERS and g.permission == ACL_PERMISSION_READ for g in acl.grants
        )
        has_public_write = any(
            g.grantee == GRANTEE_ALL_USERS and g.permission == ACL_PERMISSION_WRITE for g in acl.grants
        )
        assert has_public_read
        assert has_public_write
    def test_authenticated_read_acl(self):
        acl = create_canned_acl("authenticated-read", "owner")
        has_authenticated_read = any(
            g.grantee == GRANTEE_AUTHENTICATED_USERS and g.permission == ACL_PERMISSION_READ for g in acl.grants
        )
        assert has_authenticated_read
    def test_unknown_canned_acl_defaults_to_private(self):
        acl = create_canned_acl("unknown-acl", "owner")
        private_acl = create_canned_acl("private", "owner")
        assert acl.to_dict() == private_acl.to_dict()
@pytest.fixture
 def acl_service(tmp_path: Path):
    return AclService(tmp_path)
 class TestAclService:
    def test_get_bucket_acl_not_exists(self, acl_service):
        result = acl_service.get_bucket_acl("nonexistent-bucket")
        assert result is None
    def test_set_and_get_bucket_acl(self, acl_service):
        acl = Acl(
            owner="bucket-owner",
            grants=[AclGrant(grantee="bucket-owner", permission=ACL_PERMISSION_FULL_CONTROL)],
        )
        acl_service.set_bucket_acl("my-bucket", acl)
        retrieved = acl_service.get_bucket_acl("my-bucket")
        assert retrieved is not None
        assert retrieved.owner == "bucket-owner"
        assert len(retrieved.grants) == 1
    def test_bucket_acl_caching(self, acl_service):
        acl = Acl(owner="cached-owner", grants=[])
        acl_service.set_bucket_acl("cached-bucket", acl)
        acl_service.get_bucket_acl("cached-bucket")
        assert "cached-bucket" in acl_service._bucket_acl_cache
        retrieved = acl_service.get_bucket_acl("cached-bucket")
        assert retrieved.owner == "cached-owner"
    def test_set_bucket_canned_acl(self, acl_service):
        result = acl_service.set_bucket_canned_acl("new-bucket", "public-read", "the-owner")
        assert result.owner == "the-owner"
        retrieved = acl_service.get_bucket_acl("new-bucket")
        assert retrieved is not None
        has_public_read = any(
            g.grantee == GRANTEE_ALL_USERS and g.permission == ACL_PERMISSION_READ for g in retrieved.grants
        )
        assert has_public_read
    def test_delete_bucket_acl(self, acl_service):
        acl = Acl(owner="to-delete-owner", grants=[])
        acl_service.set_bucket_acl("delete-me", acl)
        assert acl_service.get_bucket_acl("delete-me") is not None
        acl_service.delete_bucket_acl("delete-me")
        acl_service._bucket_acl_cache.clear()
        assert acl_service.get_bucket_acl("delete-me") is None
    def test_evaluate_bucket_acl_allowed(self, acl_service):
        acl = Acl(
            owner="owner",
            grants=[AclGrant(grantee=GRANTEE_ALL_USERS, permission=ACL_PERMISSION_READ)],
        )
        acl_service.set_bucket_acl("public-bucket", acl)
        result = acl_service.evaluate_bucket_acl("public-bucket", None, "read", is_authenticated=False)
        assert result is True
    def test_evaluate_bucket_acl_denied(self, acl_service):
        acl = Acl(
            owner="owner",
            grants=[AclGrant(grantee="owner", permission=ACL_PERMISSION_FULL_CONTROL)],
        )
        acl_service.set_bucket_acl("private-bucket", acl)
        result = acl_service.evaluate_bucket_acl("private-bucket", "other-user", "write", is_authenticated=True)
        assert result is False
    def test_evaluate_bucket_acl_no_acl(self, acl_service):
        result = acl_service.evaluate_bucket_acl("no-acl-bucket", "anyone", "read")
        assert result is False
    def test_get_object_acl_from_metadata(self, acl_service):
        metadata = {
            "__acl__": {
                "owner": "object-owner",
                "grants": [{"grantee": "object-owner", "permission": "FULL_CONTROL"}],
            }
        }
        result = acl_service.get_object_acl("bucket", "key", metadata)
        assert result is not None
        assert result.owner == "object-owner"
    def test_get_object_acl_no_acl_in_metadata(self, acl_service):
        metadata = {"Content-Type": "text/plain"}
        result = acl_service.get_object_acl("bucket", "key", metadata)
        assert result is None
    def test_create_object_acl_metadata(self, acl_service):
        acl = Acl(owner="obj-owner", grants=[])
        result = acl_service.create_object_acl_metadata(acl)
        assert "__acl__" in result
        assert result["__acl__"]["owner"] == "obj-owner"
    def test_evaluate_object_acl(self, acl_service):
        metadata = {
            "__acl__": {
                "owner": "obj-owner",
                "grants": [{"grantee": "*", "permission": "READ"}],
            }
        }
        result = acl_service.evaluate_object_acl(metadata, None, "read", is_authenticated=False)
        assert result is True
        result = acl_service.evaluate_object_acl(metadata, None, "write", is_authenticated=False)
        assert result is False
--- a/tests/test_api_multipart.py
+++ b/tests/test_api_multipart.py
@@ -8,8 +8,6 @@ def client(app):
@pytest.fixture
 def auth_headers(app):
    # Create a test user and return headers
    # Using the user defined in conftest.py
    return {
        "X-Access-Key": "test",
        "X-Secret-Key": "secret"
@@ -76,18 +74,15 @@ def test_multipart_upload_flow(client, auth_headers):
 def test_abort_multipart_upload(client, auth_headers):
    client.put("/abort-bucket", headers=auth_headers)
    # Initiate
    resp = client.post("/abort-bucket/file.txt?uploads", headers=auth_headers)
    upload_id = fromstring(resp.data).find("UploadId").text
    # Abort
    resp = client.delete(f"/abort-bucket/file.txt?uploadId={upload_id}", headers=auth_headers)
    assert resp.status_code == 204
    # Try to upload part (should fail)
    resp = client.put(
        f"/abort-bucket/file.txt?partNumber=1&uploadId={upload_id}",
        headers=auth_headers,
        data=b"data"
    )
-    assert resp.status_code == 404  # NoSuchUpload
+    assert resp.status_code == 404
--- a/tests/test_encryption.py
+++ b/tests/test_encryption.py
@@ -22,11 +22,10 @@ class TestLocalKeyEncryption:
        key_path = tmp_path / "keys" / "master.key"
        provider = LocalKeyEncryption(key_path)
        # Access master key to trigger creation
        key = provider.master_key
        assert key_path.exists()
-        assert len(key) == 32  # 256-bit key
+        assert len(key) == 32
    def test_load_existing_master_key(self, tmp_path):
        """Test loading an existing master key."""
@@ -50,7 +49,6 @@ class TestLocalKeyEncryption:
        plaintext = b"Hello, World! This is a test message."
        # Encrypt
        result = provider.encrypt(plaintext)
        assert result.ciphertext != plaintext
@@ -58,7 +56,6 @@ class TestLocalKeyEncryption:
        assert len(result.nonce) == 12
        assert len(result.encrypted_data_key) > 0
        # Decrypt
        decrypted = provider.decrypt(
            result.ciphertext,
            result.nonce,
@@ -80,11 +77,8 @@ class TestLocalKeyEncryption:
        result1 = provider.encrypt(plaintext)
        result2 = provider.encrypt(plaintext)
        # Different encrypted data keys
        assert result1.encrypted_data_key != result2.encrypted_data_key
        # Different nonces
        assert result1.nonce != result2.nonce
        # Different ciphertexts
        assert result1.ciphertext != result2.ciphertext
    def test_generate_data_key(self, tmp_path):
@@ -97,9 +91,8 @@ class TestLocalKeyEncryption:
        plaintext_key, encrypted_key = provider.generate_data_key()
        assert len(plaintext_key) == 32
-        assert len(encrypted_key) > 32  # nonce + ciphertext + tag
+        assert len(encrypted_key) > 32
        # Verify we can decrypt the key
        decrypted_key = provider._decrypt_data_key(encrypted_key)
        assert decrypted_key == plaintext_key
@@ -107,18 +100,15 @@ class TestLocalKeyEncryption:
        """Test that decryption fails with wrong master key."""
        from app.encryption import LocalKeyEncryption, EncryptionError
        # Create two providers with different keys
        key_path1 = tmp_path / "master1.key"
        key_path2 = tmp_path / "master2.key"
        provider1 = LocalKeyEncryption(key_path1)
        provider2 = LocalKeyEncryption(key_path2)
        # Encrypt with provider1
        plaintext = b"Secret message"
        result = provider1.encrypt(plaintext)
        # Try to decrypt with provider2
        with pytest.raises(EncryptionError):
            provider2.decrypt(
                result.ciphertext,
@@ -196,18 +186,15 @@ class TestStreamingEncryptor:
        provider = LocalKeyEncryption(key_path)
        encryptor = StreamingEncryptor(provider, chunk_size=1024)
-        # Create test data
+        original_data = b"A" * 5000 + b"B" * 5000 + b"C" * 5000
        original_data = b"A" * 5000 + b"B" * 5000 + b"C" * 5000  # 15KB
        stream = io.BytesIO(original_data)
        # Encrypt
        encrypted_stream, metadata = encryptor.encrypt_stream(stream)
        encrypted_data = encrypted_stream.read()
        assert encrypted_data != original_data
        assert metadata.algorithm == "AES256"
        # Decrypt
        encrypted_stream = io.BytesIO(encrypted_data)
        decrypted_stream = encryptor.decrypt_stream(encrypted_stream, metadata)
        decrypted_data = decrypted_stream.read()
@@ -319,7 +306,6 @@ class TestClientEncryptionHelper:
        assert key_info["algorithm"] == "AES-256-GCM"
        assert "created_at" in key_info
        # Verify key is 256 bits
        key = base64.b64decode(key_info["key"])
        assert len(key) == 32
@@ -425,7 +411,6 @@ class TestKMSManager:
        assert key is not None
        assert key.key_id == "test-key"
        # Non-existent key
        assert kms.get_key("non-existent") is None
    def test_enable_disable_key(self, tmp_path):
@@ -439,14 +424,11 @@ class TestKMSManager:
        kms.create_key("Test key", key_id="test-key")
        # Initially enabled
        assert kms.get_key("test-key").enabled
        # Disable
        kms.disable_key("test-key")
        assert not kms.get_key("test-key").enabled
        # Enable
        kms.enable_key("test-key")
        assert kms.get_key("test-key").enabled
@@ -503,11 +485,9 @@ class TestKMSManager:
        ciphertext = kms.encrypt("test-key", plaintext, context)
        # Decrypt with same context succeeds
        decrypted, _ = kms.decrypt(ciphertext, context)
        assert decrypted == plaintext
        # Decrypt with different context fails
        with pytest.raises(EncryptionError):
            kms.decrypt(ciphertext, {"different": "context"})
@@ -527,7 +507,6 @@ class TestKMSManager:
        assert len(plaintext_key) == 32
        assert len(encrypted_key) > 0
        # Decrypt the encrypted key
        decrypted_key = kms.decrypt_data_key("test-key", encrypted_key)
        assert decrypted_key == plaintext_key
@@ -561,13 +540,8 @@ class TestKMSManager:
        plaintext = b"Data to re-encrypt"
        # Encrypt with key-1
        ciphertext1 = kms.encrypt("key-1", plaintext)
        # Re-encrypt with key-2
        ciphertext2 = kms.re_encrypt(ciphertext1, "key-2")
        # Decrypt with key-2
        decrypted, key_id = kms.decrypt(ciphertext2)
        assert decrypted == plaintext
@@ -587,7 +561,7 @@ class TestKMSManager:
        assert len(random1) == 32
        assert len(random2) == 32
-        assert random1 != random2  # Very unlikely to be equal
+        assert random1 != random2
    def test_keys_persist_across_instances(self, tmp_path):
        """Test that keys persist and can be loaded by new instances."""
@@ -596,14 +570,12 @@ class TestKMSManager:
        keys_path = tmp_path / "kms_keys.json"
        master_key_path = tmp_path / "master.key"
        # Create key with first instance
        kms1 = KMSManager(keys_path, master_key_path)
        kms1.create_key("Test key", key_id="test-key")
        plaintext = b"Persistent encryption test"
        ciphertext = kms1.encrypt("test-key", plaintext)
        # Create new instance and verify key works
        kms2 = KMSManager(keys_path, master_key_path)
        decrypted, key_id = kms2.decrypt(ciphertext)
@@ -665,13 +637,11 @@ class TestEncryptedStorage:
        encrypted_storage = EncryptedObjectStorage(storage, encryption)
        # Create bucket with encryption config
        storage.create_bucket("test-bucket")
        storage.set_bucket_encryption("test-bucket", {
            "Rules": [{"SSEAlgorithm": "AES256"}]
        })
        # Put object
        original_data = b"This is secret data that should be encrypted"
        stream = io.BytesIO(original_data)
@@ -683,12 +653,10 @@ class TestEncryptedStorage:
        assert meta is not None
        # Verify file on disk is encrypted (not plaintext)
        file_path = storage_root / "test-bucket" / "secret.txt"
        stored_data = file_path.read_bytes()
        assert stored_data != original_data
        # Get object - should be decrypted
        data, metadata = encrypted_storage.get_object_data("test-bucket", "secret.txt")
        assert data == original_data
@@ -711,14 +679,12 @@ class TestEncryptedStorage:
        encrypted_storage = EncryptedObjectStorage(storage, encryption)
        storage.create_bucket("test-bucket")
        # No encryption config
        original_data = b"Unencrypted data"
        stream = io.BytesIO(original_data)
        encrypted_storage.put_object("test-bucket", "plain.txt", stream)
        # Verify file on disk is NOT encrypted
        file_path = storage_root / "test-bucket" / "plain.txt"
        stored_data = file_path.read_bytes()
        assert stored_data == original_data
@@ -745,7 +711,6 @@ class TestEncryptedStorage:
        original_data = b"Explicitly encrypted data"
        stream = io.BytesIO(original_data)
        # Request encryption explicitly
        encrypted_storage.put_object(
            "test-bucket",
            "encrypted.txt",
@@ -753,11 +718,9 @@ class TestEncryptedStorage:
            server_side_encryption="AES256",
        )
        # Verify file is encrypted
        file_path = storage_root / "test-bucket" / "encrypted.txt"
        stored_data = file_path.read_bytes()
        assert stored_data != original_data
        # Get object - should be decrypted
        data, _ = encrypted_storage.get_object_data("test-bucket", "encrypted.txt")
        assert data == original_data
--- a/tests/test_kms_api.py
+++ b/tests/test_kms_api.py
@@ -24,7 +24,6 @@ def kms_client(tmp_path):
        "KMS_KEYS_PATH": str(tmp_path / "kms_keys.json"),
    })
    # Create default IAM config with admin user
    iam_config = {
        "users": [
            {
@@ -83,7 +82,6 @@ class TestKMSKeyManagement:
    def test_list_keys(self, kms_client, auth_headers):
        """Test listing KMS keys."""
        # Create some keys
        kms_client.post("/kms/keys", json={"Description": "Key 1"}, headers=auth_headers)
        kms_client.post("/kms/keys", json={"Description": "Key 2"}, headers=auth_headers)
@@ -97,7 +95,6 @@ class TestKMSKeyManagement:
    def test_get_key(self, kms_client, auth_headers):
        """Test getting a specific key."""
        # Create a key
        create_response = kms_client.post(
            "/kms/keys",
            json={"KeyId": "test-key", "Description": "Test key"},
@@ -120,36 +117,28 @@ class TestKMSKeyManagement:
    def test_delete_key(self, kms_client, auth_headers):
        """Test deleting a key."""
        # Create a key
        kms_client.post("/kms/keys", json={"KeyId": "test-key"}, headers=auth_headers)
        # Delete it
        response = kms_client.delete("/kms/keys/test-key", headers=auth_headers)
        assert response.status_code == 204
        # Verify it's gone
        get_response = kms_client.get("/kms/keys/test-key", headers=auth_headers)
        assert get_response.status_code == 404
    def test_enable_disable_key(self, kms_client, auth_headers):
        """Test enabling and disabling a key."""
        # Create a key
        kms_client.post("/kms/keys", json={"KeyId": "test-key"}, headers=auth_headers)
        # Disable
        response = kms_client.post("/kms/keys/test-key/disable", headers=auth_headers)
        assert response.status_code == 200
        # Verify disabled
        get_response = kms_client.get("/kms/keys/test-key", headers=auth_headers)
        assert get_response.get_json()["KeyMetadata"]["Enabled"] is False
        # Enable
        response = kms_client.post("/kms/keys/test-key/enable", headers=auth_headers)
        assert response.status_code == 200
        # Verify enabled
        get_response = kms_client.get("/kms/keys/test-key", headers=auth_headers)
        assert get_response.get_json()["KeyMetadata"]["Enabled"] is True
@@ -159,13 +148,11 @@ class TestKMSEncryption:
    def test_encrypt_decrypt(self, kms_client, auth_headers):
        """Test encrypting and decrypting data."""
        # Create a key
        kms_client.post("/kms/keys", json={"KeyId": "test-key"}, headers=auth_headers)
        plaintext = b"Hello, World!"
        plaintext_b64 = base64.b64encode(plaintext).decode()
        # Encrypt
        encrypt_response = kms_client.post(
            "/kms/encrypt",
            json={"KeyId": "test-key", "Plaintext": plaintext_b64},
@@ -178,7 +165,6 @@ class TestKMSEncryption:
        assert "CiphertextBlob" in encrypt_data
        assert encrypt_data["KeyId"] == "test-key"
        # Decrypt
        decrypt_response = kms_client.post(
            "/kms/decrypt",
            json={"CiphertextBlob": encrypt_data["CiphertextBlob"]},
@@ -199,7 +185,6 @@ class TestKMSEncryption:
        plaintext_b64 = base64.b64encode(plaintext).decode()
        context = {"purpose": "testing", "bucket": "my-bucket"}
        # Encrypt with context
        encrypt_response = kms_client.post(
            "/kms/encrypt",
            json={
@@ -213,7 +198,6 @@ class TestKMSEncryption:
        assert encrypt_response.status_code == 200
        ciphertext = encrypt_response.get_json()["CiphertextBlob"]
        # Decrypt with same context succeeds
        decrypt_response = kms_client.post(
            "/kms/decrypt",
            json={
@@ -225,7 +209,6 @@ class TestKMSEncryption:
        assert decrypt_response.status_code == 200
        # Decrypt with wrong context fails
        wrong_context_response = kms_client.post(
            "/kms/decrypt",
            json={
@@ -325,11 +308,9 @@ class TestKMSReEncrypt:
    def test_re_encrypt(self, kms_client, auth_headers):
        """Test re-encrypting data with a different key."""
        # Create two keys
        kms_client.post("/kms/keys", json={"KeyId": "key-1"}, headers=auth_headers)
        kms_client.post("/kms/keys", json={"KeyId": "key-2"}, headers=auth_headers)
        # Encrypt with key-1
        plaintext = b"Data to re-encrypt"
        encrypt_response = kms_client.post(
            "/kms/encrypt",
@@ -342,7 +323,6 @@ class TestKMSReEncrypt:
        ciphertext = encrypt_response.get_json()["CiphertextBlob"]
        # Re-encrypt with key-2
        re_encrypt_response = kms_client.post(
            "/kms/re-encrypt",
            json={
@@ -358,7 +338,6 @@ class TestKMSReEncrypt:
        assert data["SourceKeyId"] == "key-1"
        assert data["KeyId"] == "key-2"
        # Verify new ciphertext can be decrypted
        decrypt_response = kms_client.post(
            "/kms/decrypt",
            json={"CiphertextBlob": data["CiphertextBlob"]},
@@ -398,7 +377,7 @@ class TestKMSRandom:
        data = response.get_json()
        random_bytes = base64.b64decode(data["Plaintext"])
-        assert len(random_bytes) == 32  # Default is 32 bytes
+        assert len(random_bytes) == 32
 class TestClientSideEncryption:
@@ -422,11 +401,9 @@ class TestClientSideEncryption:
    def test_client_encrypt_decrypt(self, kms_client, auth_headers):
        """Test client-side encryption and decryption."""
        # Generate a key
        key_response = kms_client.post("/kms/client/generate-key", headers=auth_headers)
        key = key_response.get_json()["key"]
        # Encrypt
        plaintext = b"Client-side encrypted data"
        encrypt_response = kms_client.post(
            "/kms/client/encrypt",
@@ -440,7 +417,6 @@ class TestClientSideEncryption:
        assert encrypt_response.status_code == 200
        encrypted = encrypt_response.get_json()
        # Decrypt
        decrypt_response = kms_client.post(
            "/kms/client/decrypt",
            json={
@@ -461,7 +437,6 @@ class TestEncryptionMaterials:
    def test_get_encryption_materials(self, kms_client, auth_headers):
        """Test getting encryption materials for client-side S3 encryption."""
        # Create a key
        kms_client.post("/kms/keys", json={"KeyId": "s3-key"}, headers=auth_headers)
        response = kms_client.post(
@@ -478,7 +453,6 @@ class TestEncryptionMaterials:
        assert data["KeyId"] == "s3-key"
        assert data["Algorithm"] == "AES-256-GCM"
        # Verify key is 256 bits
        key = base64.b64decode(data["PlaintextKey"])
        assert len(key) == 32
@@ -490,7 +464,6 @@ class TestKMSAuthentication:
        """Test that unauthenticated requests are rejected."""
        response = kms_client.get("/kms/keys")
        # Should fail with 403 (no credentials)
        assert response.status_code == 403
    def test_invalid_credentials_fail(self, kms_client):
--- a/tests/test_lifecycle.py
+++ b/tests/test_lifecycle.py
@@ -0,0 +1,238 @@
 import io
 import time
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 import pytest
 from app.lifecycle import LifecycleManager, LifecycleResult
 from app.storage import ObjectStorage
@pytest.fixture
 def storage(tmp_path: Path):
    storage_root = tmp_path / "data"
    storage_root.mkdir(parents=True)
    return ObjectStorage(storage_root)
@pytest.fixture
 def lifecycle_manager(storage):
    manager = LifecycleManager(storage, interval_seconds=3600)
    yield manager
    manager.stop()
 class TestLifecycleResult:
    def test_default_values(self):
        result = LifecycleResult(bucket_name="test-bucket")
        assert result.bucket_name == "test-bucket"
        assert result.objects_deleted == 0
        assert result.versions_deleted == 0
        assert result.uploads_aborted == 0
        assert result.errors == []
        assert result.execution_time_seconds == 0.0
 class TestLifecycleManager:
    def test_start_and_stop(self, lifecycle_manager):
        lifecycle_manager.start()
        assert lifecycle_manager._timer is not None
        assert lifecycle_manager._shutdown is False
        lifecycle_manager.stop()
        assert lifecycle_manager._shutdown is True
        assert lifecycle_manager._timer is None
    def test_start_only_once(self, lifecycle_manager):
        lifecycle_manager.start()
        first_timer = lifecycle_manager._timer
        lifecycle_manager.start()
        assert lifecycle_manager._timer is first_timer
    def test_enforce_rules_no_lifecycle(self, lifecycle_manager, storage):
        storage.create_bucket("no-lifecycle-bucket")
        result = lifecycle_manager.enforce_rules("no-lifecycle-bucket")
        assert result.bucket_name == "no-lifecycle-bucket"
        assert result.objects_deleted == 0
    def test_enforce_rules_disabled_rule(self, lifecycle_manager, storage):
        storage.create_bucket("disabled-bucket")
        storage.set_bucket_lifecycle("disabled-bucket", [
            {
                "ID": "disabled-rule",
                "Status": "Disabled",
                "Prefix": "",
                "Expiration": {"Days": 1},
            }
        ])
        old_object = storage.put_object(
            "disabled-bucket",
            "old-file.txt",
            io.BytesIO(b"old content"),
        )
        result = lifecycle_manager.enforce_rules("disabled-bucket")
        assert result.objects_deleted == 0
    def test_enforce_expiration_by_days(self, lifecycle_manager, storage):
        storage.create_bucket("expire-bucket")
        storage.set_bucket_lifecycle("expire-bucket", [
            {
                "ID": "expire-30-days",
                "Status": "Enabled",
                "Prefix": "",
                "Expiration": {"Days": 30},
            }
        ])
        storage.put_object(
            "expire-bucket",
            "recent-file.txt",
            io.BytesIO(b"recent content"),
        )
        result = lifecycle_manager.enforce_rules("expire-bucket")
        assert result.objects_deleted == 0
    def test_enforce_expiration_with_prefix(self, lifecycle_manager, storage):
        storage.create_bucket("prefix-bucket")
        storage.set_bucket_lifecycle("prefix-bucket", [
            {
                "ID": "expire-logs",
                "Status": "Enabled",
                "Prefix": "logs/",
                "Expiration": {"Days": 1},
            }
        ])
        storage.put_object("prefix-bucket", "logs/old.log", io.BytesIO(b"log data"))
        storage.put_object("prefix-bucket", "data/keep.txt", io.BytesIO(b"keep this"))
        result = lifecycle_manager.enforce_rules("prefix-bucket")
    def test_enforce_all_buckets(self, lifecycle_manager, storage):
        storage.create_bucket("bucket1")
        storage.create_bucket("bucket2")
        results = lifecycle_manager.enforce_all_buckets()
        assert isinstance(results, dict)
    def test_run_now_single_bucket(self, lifecycle_manager, storage):
        storage.create_bucket("run-now-bucket")
        results = lifecycle_manager.run_now("run-now-bucket")
        assert "run-now-bucket" in results
    def test_run_now_all_buckets(self, lifecycle_manager, storage):
        storage.create_bucket("all-bucket-1")
        storage.create_bucket("all-bucket-2")
        results = lifecycle_manager.run_now()
        assert isinstance(results, dict)
    def test_enforce_abort_multipart(self, lifecycle_manager, storage):
        storage.create_bucket("multipart-bucket")
        storage.set_bucket_lifecycle("multipart-bucket", [
            {
                "ID": "abort-old-uploads",
                "Status": "Enabled",
                "Prefix": "",
                "AbortIncompleteMultipartUpload": {"DaysAfterInitiation": 7},
            }
        ])
        upload_id = storage.initiate_multipart_upload("multipart-bucket", "large-file.bin")
        result = lifecycle_manager.enforce_rules("multipart-bucket")
        assert result.uploads_aborted == 0
    def test_enforce_noncurrent_version_expiration(self, lifecycle_manager, storage):
        storage.create_bucket("versioned-bucket")
        storage.set_bucket_versioning("versioned-bucket", True)
        storage.set_bucket_lifecycle("versioned-bucket", [
            {
                "ID": "expire-old-versions",
                "Status": "Enabled",
                "Prefix": "",
                "NoncurrentVersionExpiration": {"NoncurrentDays": 30},
            }
        ])
        storage.put_object("versioned-bucket", "file.txt", io.BytesIO(b"v1"))
        storage.put_object("versioned-bucket", "file.txt", io.BytesIO(b"v2"))
        result = lifecycle_manager.enforce_rules("versioned-bucket")
        assert result.bucket_name == "versioned-bucket"
    def test_execution_time_tracking(self, lifecycle_manager, storage):
        storage.create_bucket("timed-bucket")
        storage.set_bucket_lifecycle("timed-bucket", [
            {
                "ID": "timer-test",
                "Status": "Enabled",
                "Expiration": {"Days": 1},
            }
        ])
        result = lifecycle_manager.enforce_rules("timed-bucket")
        assert result.execution_time_seconds >= 0
    def test_enforce_rules_with_error(self, lifecycle_manager, storage):
        result = lifecycle_manager.enforce_rules("nonexistent-bucket")
        assert len(result.errors) > 0 or result.objects_deleted == 0
    def test_lifecycle_with_date_expiration(self, lifecycle_manager, storage):
        storage.create_bucket("date-bucket")
        past_date = (datetime.now(timezone.utc) - timedelta(days=1)).strftime("%Y-%m-%dT00:00:00Z")
        storage.set_bucket_lifecycle("date-bucket", [
            {
                "ID": "expire-by-date",
                "Status": "Enabled",
                "Prefix": "",
                "Expiration": {"Date": past_date},
            }
        ])
        storage.put_object("date-bucket", "should-expire.txt", io.BytesIO(b"content"))
        result = lifecycle_manager.enforce_rules("date-bucket")
    def test_enforce_with_filter_prefix(self, lifecycle_manager, storage):
        storage.create_bucket("filter-bucket")
        storage.set_bucket_lifecycle("filter-bucket", [
            {
                "ID": "filter-prefix-rule",
                "Status": "Enabled",
                "Filter": {"Prefix": "archive/"},
                "Expiration": {"Days": 1},
            }
        ])
        result = lifecycle_manager.enforce_rules("filter-bucket")
        assert result.bucket_name == "filter-bucket"
 class TestLifecycleManagerScheduling:
    def test_schedule_next_respects_shutdown(self, storage):
        manager = LifecycleManager(storage, interval_seconds=1)
        manager._shutdown = True
        manager._schedule_next()
        assert manager._timer is None
    @patch.object(LifecycleManager, "enforce_all_buckets")
    def test_run_enforcement_catches_exceptions(self, mock_enforce, storage):
        mock_enforce.side_effect = Exception("Test error")
        manager = LifecycleManager(storage, interval_seconds=3600)
        manager._shutdown = True
        manager._run_enforcement()
    def test_shutdown_flag_prevents_scheduling(self, storage):
        manager = LifecycleManager(storage, interval_seconds=1)
        manager.start()
        manager.stop()
        assert manager._shutdown is True
--- a/tests/test_new_api_endpoints.py
+++ b/tests/test_new_api_endpoints.py
@@ -4,7 +4,6 @@ import pytest
 from xml.etree.ElementTree import fromstring
 # Helper to create file-like stream
 def _stream(data: bytes):
    return io.BytesIO(data)
@@ -19,13 +18,11 @@ class TestListObjectsV2:
    """Tests for ListObjectsV2 endpoint."""
    def test_list_objects_v2_basic(self, client, signer, storage):
        # Create bucket and objects
        storage.create_bucket("v2-test")
        storage.put_object("v2-test", "file1.txt", _stream(b"hello"))
        storage.put_object("v2-test", "file2.txt", _stream(b"world"))
        storage.put_object("v2-test", "folder/file3.txt", _stream(b"nested"))
        # ListObjectsV2 request
        headers = signer("GET", "/v2-test?list-type=2")
        resp = client.get("/v2-test", query_string={"list-type": "2"}, headers=headers)
        assert resp.status_code == 200
@@ -46,7 +43,6 @@ class TestListObjectsV2:
        storage.put_object("prefix-test", "photos/2024/mar.jpg", _stream(b"mar"))
        storage.put_object("prefix-test", "docs/readme.md", _stream(b"readme"))
        # List with prefix and delimiter
        headers = signer("GET", "/prefix-test?list-type=2&prefix=photos/&delimiter=/")
        resp = client.get(
            "/prefix-test",
@@ -56,11 +52,10 @@ class TestListObjectsV2:
        assert resp.status_code == 200
        root = fromstring(resp.data)
        # Should show common prefixes for 2023/ and 2024/
        prefixes = [el.find("Prefix").text for el in root.findall("CommonPrefixes")]
        assert "photos/2023/" in prefixes
        assert "photos/2024/" in prefixes
-        assert len(root.findall("Contents")) == 0  # No direct files under photos/
+        assert len(root.findall("Contents")) == 0
 class TestPutBucketVersioning:
@@ -78,7 +73,6 @@ class TestPutBucketVersioning:
        resp = client.put("/version-test", query_string={"versioning": ""}, data=payload, headers=headers)
        assert resp.status_code == 200
        # Verify via GET
        headers = signer("GET", "/version-test?versioning")
        resp = client.get("/version-test", query_string={"versioning": ""}, headers=headers)
        root = fromstring(resp.data)
@@ -110,15 +104,13 @@ class TestDeleteBucketTagging:
        storage.create_bucket("tag-delete-test")
        storage.set_bucket_tags("tag-delete-test", [{"Key": "env", "Value": "test"}])
        # Delete tags
        headers = signer("DELETE", "/tag-delete-test?tagging")
        resp = client.delete("/tag-delete-test", query_string={"tagging": ""}, headers=headers)
        assert resp.status_code == 204
        # Verify tags are gone
        headers = signer("GET", "/tag-delete-test?tagging")
        resp = client.get("/tag-delete-test", query_string={"tagging": ""}, headers=headers)
-        assert resp.status_code == 404  # NoSuchTagSet
+        assert resp.status_code == 404
 class TestDeleteBucketCors:
@@ -130,15 +122,13 @@ class TestDeleteBucketCors:
            {"AllowedOrigins": ["*"], "AllowedMethods": ["GET"]}
        ])
        # Delete CORS
        headers = signer("DELETE", "/cors-delete-test?cors")
        resp = client.delete("/cors-delete-test", query_string={"cors": ""}, headers=headers)
        assert resp.status_code == 204
        # Verify CORS is gone
        headers = signer("GET", "/cors-delete-test?cors")
        resp = client.get("/cors-delete-test", query_string={"cors": ""}, headers=headers)
-        assert resp.status_code == 404  # NoSuchCORSConfiguration
+        assert resp.status_code == 404
 class TestGetBucketLocation:
@@ -173,7 +163,6 @@ class TestBucketAcl:
    def test_put_bucket_acl(self, client, signer, storage):
        storage.create_bucket("acl-put-test")
        # PUT with canned ACL header
        headers = signer("PUT", "/acl-put-test?acl")
        headers["x-amz-acl"] = "public-read"
        resp = client.put("/acl-put-test", query_string={"acl": ""}, headers=headers)
@@ -188,7 +177,6 @@ class TestCopyObject:
        storage.create_bucket("copy-dst")
        storage.put_object("copy-src", "original.txt", _stream(b"original content"))
        # Copy object
        headers = signer("PUT", "/copy-dst/copied.txt")
        headers["x-amz-copy-source"] = "/copy-src/original.txt"
        resp = client.put("/copy-dst/copied.txt", headers=headers)
@@ -199,7 +187,6 @@ class TestCopyObject:
        assert root.find("ETag") is not None
        assert root.find("LastModified") is not None
        # Verify copy exists
        path = storage.get_object_path("copy-dst", "copied.txt")
        assert path.read_bytes() == b"original content"
@@ -208,7 +195,6 @@ class TestCopyObject:
        storage.create_bucket("meta-dst")
        storage.put_object("meta-src", "source.txt", _stream(b"data"), metadata={"old": "value"})
        # Copy with REPLACE directive
        headers = signer("PUT", "/meta-dst/target.txt")
        headers["x-amz-copy-source"] = "/meta-src/source.txt"
        headers["x-amz-metadata-directive"] = "REPLACE"
@@ -216,7 +202,6 @@ class TestCopyObject:
        resp = client.put("/meta-dst/target.txt", headers=headers)
        assert resp.status_code == 200
        # Verify new metadata (note: header keys are Title-Cased)
        meta = storage.get_object_metadata("meta-dst", "target.txt")
        assert "New" in meta or "new" in meta
        assert "old" not in meta and "Old" not in meta
@@ -229,7 +214,6 @@ class TestObjectTagging:
        storage.create_bucket("obj-tag-test")
        storage.put_object("obj-tag-test", "tagged.txt", _stream(b"content"))
        # PUT tags
        payload = b"""<?xml version="1.0" encoding="UTF-8"?>
        <Tagging>
            <TagSet>
@@ -247,7 +231,6 @@ class TestObjectTagging:
        )
        assert resp.status_code == 204
        # GET tags
        headers = signer("GET", "/obj-tag-test/tagged.txt?tagging")
        resp = client.get("/obj-tag-test/tagged.txt", query_string={"tagging": ""}, headers=headers)
        assert resp.status_code == 200
@@ -257,12 +240,10 @@ class TestObjectTagging:
        assert tags["project"] == "demo"
        assert tags["env"] == "test"
        # DELETE tags
        headers = signer("DELETE", "/obj-tag-test/tagged.txt?tagging")
        resp = client.delete("/obj-tag-test/tagged.txt", query_string={"tagging": ""}, headers=headers)
        assert resp.status_code == 204
        # Verify empty
        headers = signer("GET", "/obj-tag-test/tagged.txt?tagging")
        resp = client.get("/obj-tag-test/tagged.txt", query_string={"tagging": ""}, headers=headers)
        root = fromstring(resp.data)
@@ -272,7 +253,6 @@ class TestObjectTagging:
        storage.create_bucket("tag-limit")
        storage.put_object("tag-limit", "file.txt", _stream(b"x"))
        # Try to set 11 tags (limit is 10)
        tags = "".join(f"<Tag><Key>key{i}</Key><Value>val{i}</Value></Tag>" for i in range(11))
        payload = f"<Tagging><TagSet>{tags}</TagSet></Tagging>".encode()
--- a/tests/test_notifications.py
+++ b/tests/test_notifications.py
@@ -0,0 +1,374 @@
 import json
 import time
 from datetime import datetime, timezone
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 import pytest
 from app.notifications import (
    NotificationConfiguration,
    NotificationEvent,
    NotificationService,
    WebhookDestination,
 )
 class TestNotificationEvent:
    def test_default_values(self):
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="test-bucket",
            object_key="test/key.txt",
        )
        assert event.event_name == "s3:ObjectCreated:Put"
        assert event.bucket_name == "test-bucket"
        assert event.object_key == "test/key.txt"
        assert event.object_size == 0
        assert event.etag == ""
        assert event.version_id is None
        assert event.request_id != ""
    def test_to_s3_event(self):
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="my-bucket",
            object_key="my/object.txt",
            object_size=1024,
            etag="abc123",
            version_id="v1",
            source_ip="192.168.1.1",
            user_identity="user123",
        )
        result = event.to_s3_event()
        assert "Records" in result
        assert len(result["Records"]) == 1
        record = result["Records"][0]
        assert record["eventVersion"] == "2.1"
        assert record["eventSource"] == "myfsio:s3"
        assert record["eventName"] == "s3:ObjectCreated:Put"
        assert record["s3"]["bucket"]["name"] == "my-bucket"
        assert record["s3"]["object"]["key"] == "my/object.txt"
        assert record["s3"]["object"]["size"] == 1024
        assert record["s3"]["object"]["eTag"] == "abc123"
        assert record["s3"]["object"]["versionId"] == "v1"
        assert record["userIdentity"]["principalId"] == "user123"
        assert record["requestParameters"]["sourceIPAddress"] == "192.168.1.1"
 class TestWebhookDestination:
    def test_default_values(self):
        dest = WebhookDestination(url="http://example.com/webhook")
        assert dest.url == "http://example.com/webhook"
        assert dest.headers == {}
        assert dest.timeout_seconds == 30
        assert dest.retry_count == 3
        assert dest.retry_delay_seconds == 1
    def test_to_dict(self):
        dest = WebhookDestination(
            url="http://example.com/webhook",
            headers={"X-Custom": "value"},
            timeout_seconds=60,
            retry_count=5,
            retry_delay_seconds=2,
        )
        result = dest.to_dict()
        assert result["url"] == "http://example.com/webhook"
        assert result["headers"] == {"X-Custom": "value"}
        assert result["timeout_seconds"] == 60
        assert result["retry_count"] == 5
        assert result["retry_delay_seconds"] == 2
    def test_from_dict(self):
        data = {
            "url": "http://hook.example.com",
            "headers": {"Authorization": "Bearer token"},
            "timeout_seconds": 45,
            "retry_count": 2,
            "retry_delay_seconds": 5,
        }
        dest = WebhookDestination.from_dict(data)
        assert dest.url == "http://hook.example.com"
        assert dest.headers == {"Authorization": "Bearer token"}
        assert dest.timeout_seconds == 45
        assert dest.retry_count == 2
        assert dest.retry_delay_seconds == 5
 class TestNotificationConfiguration:
    def test_matches_event_exact_match(self):
        config = NotificationConfiguration(
            id="config1",
            events=["s3:ObjectCreated:Put"],
            destination=WebhookDestination(url="http://example.com"),
        )
        assert config.matches_event("s3:ObjectCreated:Put", "any/key.txt") is True
        assert config.matches_event("s3:ObjectCreated:Post", "any/key.txt") is False
    def test_matches_event_wildcard(self):
        config = NotificationConfiguration(
            id="config1",
            events=["s3:ObjectCreated:*"],
            destination=WebhookDestination(url="http://example.com"),
        )
        assert config.matches_event("s3:ObjectCreated:Put", "key.txt") is True
        assert config.matches_event("s3:ObjectCreated:Copy", "key.txt") is True
        assert config.matches_event("s3:ObjectRemoved:Delete", "key.txt") is False
    def test_matches_event_with_prefix_filter(self):
        config = NotificationConfiguration(
            id="config1",
            events=["s3:ObjectCreated:*"],
            destination=WebhookDestination(url="http://example.com"),
            prefix_filter="logs/",
        )
        assert config.matches_event("s3:ObjectCreated:Put", "logs/app.log") is True
        assert config.matches_event("s3:ObjectCreated:Put", "data/file.txt") is False
    def test_matches_event_with_suffix_filter(self):
        config = NotificationConfiguration(
            id="config1",
            events=["s3:ObjectCreated:*"],
            destination=WebhookDestination(url="http://example.com"),
            suffix_filter=".jpg",
        )
        assert config.matches_event("s3:ObjectCreated:Put", "photos/image.jpg") is True
        assert config.matches_event("s3:ObjectCreated:Put", "photos/image.png") is False
    def test_matches_event_with_both_filters(self):
        config = NotificationConfiguration(
            id="config1",
            events=["s3:ObjectCreated:*"],
            destination=WebhookDestination(url="http://example.com"),
            prefix_filter="images/",
            suffix_filter=".png",
        )
        assert config.matches_event("s3:ObjectCreated:Put", "images/photo.png") is True
        assert config.matches_event("s3:ObjectCreated:Put", "images/photo.jpg") is False
        assert config.matches_event("s3:ObjectCreated:Put", "documents/file.png") is False
    def test_to_dict(self):
        config = NotificationConfiguration(
            id="my-config",
            events=["s3:ObjectCreated:Put", "s3:ObjectRemoved:Delete"],
            destination=WebhookDestination(url="http://example.com"),
            prefix_filter="logs/",
            suffix_filter=".log",
        )
        result = config.to_dict()
        assert result["Id"] == "my-config"
        assert result["Events"] == ["s3:ObjectCreated:Put", "s3:ObjectRemoved:Delete"]
        assert "Destination" in result
        assert result["Filter"]["Key"]["FilterRules"][0]["Value"] == "logs/"
        assert result["Filter"]["Key"]["FilterRules"][1]["Value"] == ".log"
    def test_from_dict(self):
        data = {
            "Id": "parsed-config",
            "Events": ["s3:ObjectCreated:*"],
            "Destination": {"url": "http://hook.example.com"},
            "Filter": {
                "Key": {
                    "FilterRules": [
                        {"Name": "prefix", "Value": "data/"},
                        {"Name": "suffix", "Value": ".csv"},
                    ]
                }
            },
        }
        config = NotificationConfiguration.from_dict(data)
        assert config.id == "parsed-config"
        assert config.events == ["s3:ObjectCreated:*"]
        assert config.destination.url == "http://hook.example.com"
        assert config.prefix_filter == "data/"
        assert config.suffix_filter == ".csv"
@pytest.fixture
 def notification_service(tmp_path: Path):
    service = NotificationService(tmp_path, worker_count=1)
    yield service
    service.shutdown()
 class TestNotificationService:
    def test_get_bucket_notifications_empty(self, notification_service):
        result = notification_service.get_bucket_notifications("nonexistent-bucket")
        assert result == []
    def test_set_and_get_bucket_notifications(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="config1",
                events=["s3:ObjectCreated:*"],
                destination=WebhookDestination(url="http://example.com/webhook1"),
            ),
            NotificationConfiguration(
                id="config2",
                events=["s3:ObjectRemoved:*"],
                destination=WebhookDestination(url="http://example.com/webhook2"),
            ),
        ]
        notification_service.set_bucket_notifications("my-bucket", configs)
        retrieved = notification_service.get_bucket_notifications("my-bucket")
        assert len(retrieved) == 2
        assert retrieved[0].id == "config1"
        assert retrieved[1].id == "config2"
    def test_delete_bucket_notifications(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="to-delete",
                events=["s3:ObjectCreated:*"],
                destination=WebhookDestination(url="http://example.com"),
            ),
        ]
        notification_service.set_bucket_notifications("delete-bucket", configs)
        assert len(notification_service.get_bucket_notifications("delete-bucket")) == 1
        notification_service.delete_bucket_notifications("delete-bucket")
        notification_service._configs.clear()
        assert len(notification_service.get_bucket_notifications("delete-bucket")) == 0
    def test_emit_event_no_config(self, notification_service):
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="no-config-bucket",
            object_key="test.txt",
        )
        notification_service.emit_event(event)
        assert notification_service._stats["events_queued"] == 0
    def test_emit_event_matching_config(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="match-config",
                events=["s3:ObjectCreated:*"],
                destination=WebhookDestination(url="http://example.com/webhook"),
            ),
        ]
        notification_service.set_bucket_notifications("event-bucket", configs)
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="event-bucket",
            object_key="test.txt",
        )
        notification_service.emit_event(event)
        assert notification_service._stats["events_queued"] == 1
    def test_emit_event_non_matching_config(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="delete-only",
                events=["s3:ObjectRemoved:*"],
                destination=WebhookDestination(url="http://example.com/webhook"),
            ),
        ]
        notification_service.set_bucket_notifications("delete-bucket", configs)
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="delete-bucket",
            object_key="test.txt",
        )
        notification_service.emit_event(event)
        assert notification_service._stats["events_queued"] == 0
    def test_emit_object_created(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="create-config",
                events=["s3:ObjectCreated:Put"],
                destination=WebhookDestination(url="http://example.com/webhook"),
            ),
        ]
        notification_service.set_bucket_notifications("create-bucket", configs)
        notification_service.emit_object_created(
            "create-bucket",
            "new-file.txt",
            size=1024,
            etag="abc123",
            operation="Put",
        )
        assert notification_service._stats["events_queued"] == 1
    def test_emit_object_removed(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="remove-config",
                events=["s3:ObjectRemoved:Delete"],
                destination=WebhookDestination(url="http://example.com/webhook"),
            ),
        ]
        notification_service.set_bucket_notifications("remove-bucket", configs)
        notification_service.emit_object_removed(
            "remove-bucket",
            "deleted-file.txt",
            operation="Delete",
        )
        assert notification_service._stats["events_queued"] == 1
    def test_get_stats(self, notification_service):
        stats = notification_service.get_stats()
        assert "events_queued" in stats
        assert "events_sent" in stats
        assert "events_failed" in stats
    @patch("app.notifications.requests.post")
    def test_send_notification_success(self, mock_post, notification_service):
        mock_response = MagicMock()
        mock_response.status_code = 200
        mock_post.return_value = mock_response
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="test-bucket",
            object_key="test.txt",
        )
        destination = WebhookDestination(url="http://example.com/webhook")
        notification_service._send_notification(event, destination)
        mock_post.assert_called_once()
    @patch("app.notifications.requests.post")
    def test_send_notification_retry_on_failure(self, mock_post, notification_service):
        mock_response = MagicMock()
        mock_response.status_code = 500
        mock_response.text = "Internal Server Error"
        mock_post.return_value = mock_response
        event = NotificationEvent(
            event_name="s3:ObjectCreated:Put",
            bucket_name="test-bucket",
            object_key="test.txt",
        )
        destination = WebhookDestination(
            url="http://example.com/webhook",
            retry_count=2,
            retry_delay_seconds=0,
        )
        with pytest.raises(RuntimeError) as exc_info:
            notification_service._send_notification(event, destination)
        assert "Failed after 2 attempts" in str(exc_info.value)
        assert mock_post.call_count == 2
    def test_notification_caching(self, notification_service):
        configs = [
            NotificationConfiguration(
                id="cached-config",
                events=["s3:ObjectCreated:*"],
                destination=WebhookDestination(url="http://example.com"),
            ),
        ]
        notification_service.set_bucket_notifications("cached-bucket", configs)
        notification_service.get_bucket_notifications("cached-bucket")
        assert "cached-bucket" in notification_service._configs
--- a/tests/test_object_lock.py
+++ b/tests/test_object_lock.py
@@ -0,0 +1,332 @@
 import json
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
 import pytest
 from app.object_lock import (
    ObjectLockConfig,
    ObjectLockError,
    ObjectLockRetention,
    ObjectLockService,
    RetentionMode,
 )
 class TestRetentionMode:
    def test_governance_mode(self):
        assert RetentionMode.GOVERNANCE.value == "GOVERNANCE"
    def test_compliance_mode(self):
        assert RetentionMode.COMPLIANCE.value == "COMPLIANCE"
 class TestObjectLockRetention:
    def test_to_dict(self):
        retain_until = datetime(2025, 12, 31, 23, 59, 59, tzinfo=timezone.utc)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=retain_until,
        )
        result = retention.to_dict()
        assert result["Mode"] == "GOVERNANCE"
        assert "2025-12-31" in result["RetainUntilDate"]
    def test_from_dict(self):
        data = {
            "Mode": "COMPLIANCE",
            "RetainUntilDate": "2030-06-15T12:00:00+00:00",
        }
        retention = ObjectLockRetention.from_dict(data)
        assert retention is not None
        assert retention.mode == RetentionMode.COMPLIANCE
        assert retention.retain_until_date.year == 2030
    def test_from_dict_empty(self):
        result = ObjectLockRetention.from_dict({})
        assert result is None
    def test_from_dict_missing_mode(self):
        data = {"RetainUntilDate": "2030-06-15T12:00:00+00:00"}
        result = ObjectLockRetention.from_dict(data)
        assert result is None
    def test_from_dict_missing_date(self):
        data = {"Mode": "GOVERNANCE"}
        result = ObjectLockRetention.from_dict(data)
        assert result is None
    def test_is_expired_future_date(self):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        assert retention.is_expired() is False
    def test_is_expired_past_date(self):
        past = datetime.now(timezone.utc) - timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=past,
        )
        assert retention.is_expired() is True
 class TestObjectLockConfig:
    def test_to_dict_enabled(self):
        config = ObjectLockConfig(enabled=True)
        result = config.to_dict()
        assert result["ObjectLockEnabled"] == "Enabled"
    def test_to_dict_disabled(self):
        config = ObjectLockConfig(enabled=False)
        result = config.to_dict()
        assert result["ObjectLockEnabled"] == "Disabled"
    def test_from_dict_enabled(self):
        data = {"ObjectLockEnabled": "Enabled"}
        config = ObjectLockConfig.from_dict(data)
        assert config.enabled is True
    def test_from_dict_disabled(self):
        data = {"ObjectLockEnabled": "Disabled"}
        config = ObjectLockConfig.from_dict(data)
        assert config.enabled is False
    def test_from_dict_with_default_retention_days(self):
        data = {
            "ObjectLockEnabled": "Enabled",
            "Rule": {
                "DefaultRetention": {
                    "Mode": "GOVERNANCE",
                    "Days": 30,
                }
            },
        }
        config = ObjectLockConfig.from_dict(data)
        assert config.enabled is True
        assert config.default_retention is not None
        assert config.default_retention.mode == RetentionMode.GOVERNANCE
    def test_from_dict_with_default_retention_years(self):
        data = {
            "ObjectLockEnabled": "Enabled",
            "Rule": {
                "DefaultRetention": {
                    "Mode": "COMPLIANCE",
                    "Years": 1,
                }
            },
        }
        config = ObjectLockConfig.from_dict(data)
        assert config.enabled is True
        assert config.default_retention is not None
        assert config.default_retention.mode == RetentionMode.COMPLIANCE
@pytest.fixture
 def lock_service(tmp_path: Path):
    return ObjectLockService(tmp_path)
 class TestObjectLockService:
    def test_get_bucket_lock_config_default(self, lock_service):
        config = lock_service.get_bucket_lock_config("nonexistent-bucket")
        assert config.enabled is False
        assert config.default_retention is None
    def test_set_and_get_bucket_lock_config(self, lock_service):
        config = ObjectLockConfig(enabled=True)
        lock_service.set_bucket_lock_config("my-bucket", config)
        retrieved = lock_service.get_bucket_lock_config("my-bucket")
        assert retrieved.enabled is True
    def test_enable_bucket_lock(self, lock_service):
        lock_service.enable_bucket_lock("lock-bucket")
        config = lock_service.get_bucket_lock_config("lock-bucket")
        assert config.enabled is True
    def test_is_bucket_lock_enabled(self, lock_service):
        assert lock_service.is_bucket_lock_enabled("new-bucket") is False
        lock_service.enable_bucket_lock("new-bucket")
        assert lock_service.is_bucket_lock_enabled("new-bucket") is True
    def test_get_object_retention_not_set(self, lock_service):
        result = lock_service.get_object_retention("bucket", "key.txt")
        assert result is None
    def test_set_and_get_object_retention(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "key.txt", retention)
        retrieved = lock_service.get_object_retention("bucket", "key.txt")
        assert retrieved is not None
        assert retrieved.mode == RetentionMode.GOVERNANCE
    def test_cannot_modify_compliance_retention(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.COMPLIANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "locked.txt", retention)
        new_retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future + timedelta(days=10),
        )
        with pytest.raises(ObjectLockError) as exc_info:
            lock_service.set_object_retention("bucket", "locked.txt", new_retention)
        assert "COMPLIANCE" in str(exc_info.value)
    def test_cannot_modify_governance_without_bypass(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "gov.txt", retention)
        new_retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future + timedelta(days=10),
        )
        with pytest.raises(ObjectLockError) as exc_info:
            lock_service.set_object_retention("bucket", "gov.txt", new_retention)
        assert "GOVERNANCE" in str(exc_info.value)
    def test_can_modify_governance_with_bypass(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "bypassable.txt", retention)
        new_retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future + timedelta(days=10),
        )
        lock_service.set_object_retention("bucket", "bypassable.txt", new_retention, bypass_governance=True)
        retrieved = lock_service.get_object_retention("bucket", "bypassable.txt")
        assert retrieved.retain_until_date > future
    def test_can_modify_expired_retention(self, lock_service):
        past = datetime.now(timezone.utc) - timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.COMPLIANCE,
            retain_until_date=past,
        )
        lock_service.set_object_retention("bucket", "expired.txt", retention)
        future = datetime.now(timezone.utc) + timedelta(days=30)
        new_retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "expired.txt", new_retention)
        retrieved = lock_service.get_object_retention("bucket", "expired.txt")
        assert retrieved.mode == RetentionMode.GOVERNANCE
    def test_get_legal_hold_not_set(self, lock_service):
        result = lock_service.get_legal_hold("bucket", "key.txt")
        assert result is False
    def test_set_and_get_legal_hold(self, lock_service):
        lock_service.set_legal_hold("bucket", "held.txt", True)
        assert lock_service.get_legal_hold("bucket", "held.txt") is True
        lock_service.set_legal_hold("bucket", "held.txt", False)
        assert lock_service.get_legal_hold("bucket", "held.txt") is False
    def test_can_delete_object_no_lock(self, lock_service):
        can_delete, reason = lock_service.can_delete_object("bucket", "unlocked.txt")
        assert can_delete is True
        assert reason == ""
    def test_cannot_delete_object_with_legal_hold(self, lock_service):
        lock_service.set_legal_hold("bucket", "held.txt", True)
        can_delete, reason = lock_service.can_delete_object("bucket", "held.txt")
        assert can_delete is False
        assert "legal hold" in reason.lower()
    def test_cannot_delete_object_with_compliance_retention(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.COMPLIANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "compliant.txt", retention)
        can_delete, reason = lock_service.can_delete_object("bucket", "compliant.txt")
        assert can_delete is False
        assert "COMPLIANCE" in reason
    def test_cannot_delete_governance_without_bypass(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "governed.txt", retention)
        can_delete, reason = lock_service.can_delete_object("bucket", "governed.txt")
        assert can_delete is False
        assert "GOVERNANCE" in reason
    def test_can_delete_governance_with_bypass(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "governed.txt", retention)
        can_delete, reason = lock_service.can_delete_object("bucket", "governed.txt", bypass_governance=True)
        assert can_delete is True
        assert reason == ""
    def test_can_delete_expired_retention(self, lock_service):
        past = datetime.now(timezone.utc) - timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.COMPLIANCE,
            retain_until_date=past,
        )
        lock_service.set_object_retention("bucket", "expired.txt", retention)
        can_delete, reason = lock_service.can_delete_object("bucket", "expired.txt")
        assert can_delete is True
    def test_can_overwrite_is_same_as_delete(self, lock_service):
        future = datetime.now(timezone.utc) + timedelta(days=30)
        retention = ObjectLockRetention(
            mode=RetentionMode.GOVERNANCE,
            retain_until_date=future,
        )
        lock_service.set_object_retention("bucket", "overwrite.txt", retention)
        can_overwrite, _ = lock_service.can_overwrite_object("bucket", "overwrite.txt")
        can_delete, _ = lock_service.can_delete_object("bucket", "overwrite.txt")
        assert can_overwrite == can_delete
    def test_delete_object_lock_metadata(self, lock_service):
        lock_service.set_legal_hold("bucket", "cleanup.txt", True)
        lock_service.delete_object_lock_metadata("bucket", "cleanup.txt")
        assert lock_service.get_legal_hold("bucket", "cleanup.txt") is False
    def test_config_caching(self, lock_service):
        config = ObjectLockConfig(enabled=True)
        lock_service.set_bucket_lock_config("cached-bucket", config)
        lock_service.get_bucket_lock_config("cached-bucket")
        assert "cached-bucket" in lock_service._config_cache
--- a/tests/test_replication.py
+++ b/tests/test_replication.py
@@ -0,0 +1,287 @@
 import json
 import time
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 import pytest
 from app.connections import ConnectionStore, RemoteConnection
 from app.replication import (
    ReplicationManager,
    ReplicationRule,
    ReplicationStats,
    REPLICATION_MODE_ALL,
    REPLICATION_MODE_NEW_ONLY,
    _create_s3_client,
 )
 from app.storage import ObjectStorage
@pytest.fixture
 def storage(tmp_path: Path):
    storage_root = tmp_path / "data"
    storage_root.mkdir(parents=True)
    return ObjectStorage(storage_root)
@pytest.fixture
 def connections(tmp_path: Path):
    connections_path = tmp_path / "connections.json"
    store = ConnectionStore(connections_path)
    conn = RemoteConnection(
        id="test-conn",
        name="Test Remote",
        endpoint_url="http://localhost:9000",
        access_key="remote-access",
        secret_key="remote-secret",
        region="us-east-1",
    )
    store.add(conn)
    return store
@pytest.fixture
 def replication_manager(storage, connections, tmp_path):
    rules_path = tmp_path / "replication_rules.json"
    storage_root = tmp_path / "data"
    storage_root.mkdir(exist_ok=True)
    manager = ReplicationManager(storage, connections, rules_path, storage_root)
    yield manager
    manager.shutdown(wait=False)
 class TestReplicationStats:
    def test_to_dict(self):
        stats = ReplicationStats(
            objects_synced=10,
            objects_pending=5,
            objects_orphaned=2,
            bytes_synced=1024,
            last_sync_at=1234567890.0,
            last_sync_key="test/key.txt",
        )
        result = stats.to_dict()
        assert result["objects_synced"] == 10
        assert result["objects_pending"] == 5
        assert result["objects_orphaned"] == 2
        assert result["bytes_synced"] == 1024
        assert result["last_sync_at"] == 1234567890.0
        assert result["last_sync_key"] == "test/key.txt"
    def test_from_dict(self):
        data = {
            "objects_synced": 15,
            "objects_pending": 3,
            "objects_orphaned": 1,
            "bytes_synced": 2048,
            "last_sync_at": 9876543210.0,
            "last_sync_key": "another/key.txt",
        }
        stats = ReplicationStats.from_dict(data)
        assert stats.objects_synced == 15
        assert stats.objects_pending == 3
        assert stats.objects_orphaned == 1
        assert stats.bytes_synced == 2048
        assert stats.last_sync_at == 9876543210.0
        assert stats.last_sync_key == "another/key.txt"
    def test_from_dict_with_defaults(self):
        stats = ReplicationStats.from_dict({})
        assert stats.objects_synced == 0
        assert stats.objects_pending == 0
        assert stats.objects_orphaned == 0
        assert stats.bytes_synced == 0
        assert stats.last_sync_at is None
        assert stats.last_sync_key is None
 class TestReplicationRule:
    def test_to_dict(self):
        rule = ReplicationRule(
            bucket_name="source-bucket",
            target_connection_id="test-conn",
            target_bucket="dest-bucket",
            enabled=True,
            mode=REPLICATION_MODE_ALL,
            created_at=1234567890.0,
        )
        result = rule.to_dict()
        assert result["bucket_name"] == "source-bucket"
        assert result["target_connection_id"] == "test-conn"
        assert result["target_bucket"] == "dest-bucket"
        assert result["enabled"] is True
        assert result["mode"] == REPLICATION_MODE_ALL
        assert result["created_at"] == 1234567890.0
        assert "stats" in result
    def test_from_dict(self):
        data = {
            "bucket_name": "my-bucket",
            "target_connection_id": "conn-123",
            "target_bucket": "remote-bucket",
            "enabled": False,
            "mode": REPLICATION_MODE_NEW_ONLY,
            "created_at": 1111111111.0,
            "stats": {"objects_synced": 5},
        }
        rule = ReplicationRule.from_dict(data)
        assert rule.bucket_name == "my-bucket"
        assert rule.target_connection_id == "conn-123"
        assert rule.target_bucket == "remote-bucket"
        assert rule.enabled is False
        assert rule.mode == REPLICATION_MODE_NEW_ONLY
        assert rule.created_at == 1111111111.0
        assert rule.stats.objects_synced == 5
    def test_from_dict_defaults_mode(self):
        data = {
            "bucket_name": "my-bucket",
            "target_connection_id": "conn-123",
            "target_bucket": "remote-bucket",
        }
        rule = ReplicationRule.from_dict(data)
        assert rule.mode == REPLICATION_MODE_NEW_ONLY
        assert rule.created_at is None
 class TestReplicationManager:
    def test_get_rule_not_exists(self, replication_manager):
        rule = replication_manager.get_rule("nonexistent-bucket")
        assert rule is None
    def test_set_and_get_rule(self, replication_manager):
        rule = ReplicationRule(
            bucket_name="my-bucket",
            target_connection_id="test-conn",
            target_bucket="remote-bucket",
            enabled=True,
            mode=REPLICATION_MODE_NEW_ONLY,
            created_at=time.time(),
        )
        replication_manager.set_rule(rule)
        retrieved = replication_manager.get_rule("my-bucket")
        assert retrieved is not None
        assert retrieved.bucket_name == "my-bucket"
        assert retrieved.target_connection_id == "test-conn"
        assert retrieved.target_bucket == "remote-bucket"
    def test_delete_rule(self, replication_manager):
        rule = ReplicationRule(
            bucket_name="to-delete",
            target_connection_id="test-conn",
            target_bucket="remote-bucket",
        )
        replication_manager.set_rule(rule)
        assert replication_manager.get_rule("to-delete") is not None
        replication_manager.delete_rule("to-delete")
        assert replication_manager.get_rule("to-delete") is None
    def test_save_and_reload_rules(self, replication_manager, tmp_path):
        rule = ReplicationRule(
            bucket_name="persistent-bucket",
            target_connection_id="test-conn",
            target_bucket="remote-bucket",
            enabled=True,
        )
        replication_manager.set_rule(rule)
        rules_path = tmp_path / "replication_rules.json"
        assert rules_path.exists()
        data = json.loads(rules_path.read_text())
        assert "persistent-bucket" in data
    @patch("app.replication._create_s3_client")
    def test_check_endpoint_health_success(self, mock_create_client, replication_manager, connections):
        mock_client = MagicMock()
        mock_client.list_buckets.return_value = {"Buckets": []}
        mock_create_client.return_value = mock_client
        conn = connections.get("test-conn")
        result = replication_manager.check_endpoint_health(conn)
        assert result is True
        mock_client.list_buckets.assert_called_once()
    @patch("app.replication._create_s3_client")
    def test_check_endpoint_health_failure(self, mock_create_client, replication_manager, connections):
        mock_client = MagicMock()
        mock_client.list_buckets.side_effect = Exception("Connection refused")
        mock_create_client.return_value = mock_client
        conn = connections.get("test-conn")
        result = replication_manager.check_endpoint_health(conn)
        assert result is False
    def test_trigger_replication_no_rule(self, replication_manager):
        replication_manager.trigger_replication("no-such-bucket", "test.txt", "write")
    def test_trigger_replication_disabled_rule(self, replication_manager):
        rule = ReplicationRule(
            bucket_name="disabled-bucket",
            target_connection_id="test-conn",
            target_bucket="remote-bucket",
            enabled=False,
        )
        replication_manager.set_rule(rule)
        replication_manager.trigger_replication("disabled-bucket", "test.txt", "write")
    def test_trigger_replication_missing_connection(self, replication_manager):
        rule = ReplicationRule(
            bucket_name="orphan-bucket",
            target_connection_id="missing-conn",
            target_bucket="remote-bucket",
            enabled=True,
        )
        replication_manager.set_rule(rule)
        replication_manager.trigger_replication("orphan-bucket", "test.txt", "write")
    def test_replicate_task_path_traversal_blocked(self, replication_manager, connections):
        rule = ReplicationRule(
            bucket_name="secure-bucket",
            target_connection_id="test-conn",
            target_bucket="remote-bucket",
            enabled=True,
        )
        replication_manager.set_rule(rule)
        conn = connections.get("test-conn")
        replication_manager._replicate_task("secure-bucket", "../../../etc/passwd", rule, conn, "write")
        replication_manager._replicate_task("secure-bucket", "/root/secret", rule, conn, "write")
        replication_manager._replicate_task("secure-bucket", "..\\..\\windows\\system32", rule, conn, "write")
 class TestCreateS3Client:
    @patch("app.replication.boto3.client")
    def test_creates_client_with_correct_config(self, mock_boto_client):
        conn = RemoteConnection(
            id="test",
            name="Test",
            endpoint_url="http://localhost:9000",
            access_key="access",
            secret_key="secret",
            region="eu-west-1",
        )
        _create_s3_client(conn)
        mock_boto_client.assert_called_once()
        call_kwargs = mock_boto_client.call_args[1]
        assert call_kwargs["endpoint_url"] == "http://localhost:9000"
        assert call_kwargs["aws_access_key_id"] == "access"
        assert call_kwargs["aws_secret_access_key"] == "secret"
        assert call_kwargs["region_name"] == "eu-west-1"
    @patch("app.replication.boto3.client")
    def test_health_check_mode_minimal_retries(self, mock_boto_client):
        conn = RemoteConnection(
            id="test",
            name="Test",
            endpoint_url="http://localhost:9000",
            access_key="access",
            secret_key="secret",
        )
        _create_s3_client(conn, health_check=True)
        call_kwargs = mock_boto_client.call_args[1]
        config = call_kwargs["config"]
        assert config.retries["max_attempts"] == 1
--- a/tests/test_ui_encryption.py
+++ b/tests/test_ui_encryption.py
@@ -67,7 +67,6 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login first
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        response = client.get("/ui/buckets/test-bucket?tab=properties")
@@ -82,14 +81,11 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        # Get CSRF token
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
        # Enable AES-256 encryption
        response = client.post(
            "/ui/buckets/test-bucket/encryption",
            data={
@@ -102,7 +98,6 @@ class TestUIBucketEncryption:
        assert response.status_code == 200
        html = response.data.decode("utf-8")
        # Should see success message or enabled state
        assert "AES-256" in html or "encryption enabled" in html.lower()
    def test_enable_kms_encryption(self, tmp_path):
@@ -110,7 +105,6 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path, kms_enabled=True)
        client = app.test_client()
        # Create a KMS key first
        with app.app_context():
            kms = app.extensions.get("kms")
            if kms:
@@ -119,14 +113,11 @@ class TestUIBucketEncryption:
            else:
                pytest.skip("KMS not available")
        # Login
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        # Get CSRF token
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
        # Enable KMS encryption
        response = client.post(
            "/ui/buckets/test-bucket/encryption",
            data={
@@ -147,10 +138,8 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        # First enable encryption
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
@@ -163,7 +152,6 @@ class TestUIBucketEncryption:
            },
        )
        # Now disable it
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
@@ -185,7 +173,6 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        response = client.get("/ui/buckets/test-bucket?tab=properties")
@@ -210,10 +197,8 @@ class TestUIBucketEncryption:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login
        client.post("/ui/login", data={"access_key": "test", "secret_key": "secret"}, follow_redirects=True)
        # Enable encryption
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
@@ -226,7 +211,6 @@ class TestUIBucketEncryption:
            },
        )
        # Verify it's stored
        with app.app_context():
            storage = app.extensions["object_storage"]
            config = storage.get_bucket_encryption("test-bucket")
@@ -244,10 +228,8 @@ class TestUIEncryptionWithoutPermission:
        app = _make_encryption_app(tmp_path)
        client = app.test_client()
        # Login as readonly user
        client.post("/ui/login", data={"access_key": "readonly", "secret_key": "secret"}, follow_redirects=True)
        # This should fail or be rejected
        response = client.get("/ui/buckets/test-bucket?tab=properties")
        csrf_token = get_csrf_token(response)
@@ -261,8 +243,6 @@ class TestUIEncryptionWithoutPermission:
            follow_redirects=True,
        )
        # Should either redirect with error or show permission denied
        assert response.status_code == 200
        html = response.data.decode("utf-8")
        # Should contain error about permission denied
        assert "Access denied" in html or "permission" in html.lower() or "not authorized" in html.lower()
--- a/tests/test_ui_pagination.py
+++ b/tests/test_ui_pagination.py
@@ -157,9 +157,14 @@ class TestPaginatedObjectListing:
            assert "last_modified" in obj
            assert "last_modified_display" in obj
            assert "etag" in obj
-            assert "preview_url" in obj
+
-            assert "download_url" in obj
+            # URLs are now returned as templates (not per-object) for performance
-            assert "delete_endpoint" in obj
+            assert "url_templates" in data
            templates = data["url_templates"]
            assert "preview" in templates
            assert "download" in templates
            assert "delete" in templates
            assert "KEY_PLACEHOLDER" in templates["preview"]
    def test_bucket_detail_page_loads_without_objects(self, tmp_path):
        """Bucket detail page should load even with many objects."""
@@ -179,5 +184,5 @@ class TestPaginatedObjectListing:
            assert resp.status_code == 200
            html = resp.data.decode("utf-8")
-            # Should have the JavaScript loading infrastructure
+            # Should have the JavaScript loading infrastructure (external JS file)
-            assert "loadObjects" in html or "objectsApiUrl" in html
+            assert "bucket-detail-main.js" in html
Author	SHA1	Message	Date
kqjy	899db3421b	Merge pull request 'MyFSIO v0.2.1 Release' (#13 ) from next into main Reviewed-on: #13	2026-01-12 08:03:29 +00:00
kqjy	e3509e997f	Add AGPLv3 license	2026-01-12 15:52:34 +08:00
kqjy	1c30200db0	UI: Add upload cancellation toggle	2026-01-12 15:35:20 +08:00
kqjy	7ff422d4dc	Fix multipart upload listing API and remove duplicate upload notification	2026-01-12 15:20:45 +08:00
kqjy	546d51af9a	Optimize object listing for 100K+ objects with streaming and compression	2026-01-12 14:25:07 +08:00
kqjy	0d1fe05fd0	Implement dynamic UI loading	2026-01-11 22:36:04 +08:00
kqjy	c5d4b2f1cd	Fix UI/UX issues: lifecycle warnings, CORS tooltip, IAM overflow, config validation, JS maintenance	2026-01-09 12:47:37 +08:00
kqjy	caf01d6ada	Merge pull request 'MyFSIO v0.2.0 Release' (#12 ) from next into main Reviewed-on: #12	2026-01-05 15:48:03 +00:00
kqjy	a5d19e2982	Replace confirm() with modal for clear failures; add loading states to retry buttons	2026-01-05 23:40:37 +08:00
kqjy	692e7e3a6e	Further fix on text overflow in failed replications table	2026-01-05 23:27:42 +08:00
kqjy	78dba93ee0	Fix text overflow in failed replications table	2026-01-05 23:19:51 +08:00
kqjy	93a5aa6618	Add replication failure tracking and lifecycle execution history	2026-01-05 00:18:08 +08:00
kqjy	9ab750650c	Update docs; Improve new panel icons	2026-01-04 21:28:37 +08:00
kqjy	609e9db2f7	Add redirect /ui/buckets URL to /ui/	2026-01-04 14:34:59 +08:00
kqjy	94a55cf2b7	Revamp navbar - implement new sidepanel navigation	2026-01-04 14:00:03 +08:00
kqjy	b9cfc45aa2	Add new tests; Fix typo and validations	2026-01-03 23:29:07 +08:00
kqjy	2d60e36fbf	Fix multipart upload failure; Improve upload UX;	2026-01-03 17:27:46 +08:00
kqjy	c78f7fa6b0	Fix IAM message box modal delete user icon	2026-01-01 22:55:21 +08:00
kqjy	b3dce8d13e	Fix Remove fallback ETag, make etag optional, fix multipart ETag storage, fix request entity too large error due to mishandled multipart uploads	2026-01-01 21:51:01 +08:00
kqjy	e792b86485	(UI): Add lifecycle, CORS, ACL, move/copy objects functionalities	2026-01-01 16:48:44 +08:00
kqjy	cdb86aeea7	Implement Object Lock, Event Notifications, SSE-C, and Access Logging	2025-12-31 23:40:46 +08:00
kqjy	cdbc156b5b	Implement 9 S3 compatibility features: ACLs, range requests, lifecycle enforcement, replication ALL mode, bulk delete with VersionId, KMS integration, copy conditionals, response header overrides, and SigV4 session tokens	2025-12-31 19:12:54 +08:00
kqjy	1df8ff9d25	Clean up code comments	2025-12-31 18:00:03 +08:00
kqjy	05f1b00473	Update Dockerfile Python runtime	2025-12-31 14:13:30 +08:00
kqjy	5ebc97300e	Update README	2025-12-31 14:12:37 +08:00
kqjy	d2f9c3bded	Update README	2025-12-31 14:10:55 +08:00
kqjy	9f347f2caa	Fix brand typos	2025-12-31 14:02:50 +08:00
kqjy	4ab58e59c2	Optimize S3 performance: add caching, per-bucket locks, streaming encryption	2025-12-29 18:12:28 +08:00
kqjy	32232211a1	Revamp UI/UX: bucket icons, dynamic metrics, mobile docs navigation, rework IAM UI, add JSON auto-indent to policy editors	2025-12-29 17:37:56 +08:00
kqjy	bb366cb4cd	Merge pull request 'MyFSIO v0.1.9 Release' (#10 ) from next into main Reviewed-on: #10	2025-12-29 06:49:48 +00:00
kqjy	1cacb80dd6	Fix replication pause, multipart cache, and select all with virtual scroll	2025-12-29 14:46:06 +08:00
kqjy	e89bbb62dc	Fix pausing replication and resuming replication does not continue the replication for the remaining pending objects; Improve Documentation	2025-12-29 14:05:17 +08:00
kqjy	c8eb3de629	Fix issues -- Bug fixes: - Fix duplicate _legacy_version_dir check in storage.py - Fix max_size_bytes -> max_bytes param in quota handler - Move base64 import to module level in s3_api.py - Add retry logic and atomic file ops to multipart upload - Add shutdown() method to ReplicationManager Performance: - Add LRU eviction with OrderedDict to object cache - Add cache version tracking for stale read detection - Add streaming uploads for large files (>10 MiB) in replication - Create _find_element() XML parsing helpers Security: - Gate SigV4 debug logging behind DEBUG_SIGV4 config	2025-12-29 12:46:23 +08:00
kqjy	a2745ff2ee	Merge pull request 'MyFSIO v0.1.8 Release' (#9 ) from next into main Reviewed-on: #9	2025-12-23 06:01:32 +00:00
kqjy	28cb656d94	Merge pull request 'MyFSIO v0.1.7 Release' (#8 ) from next into main Reviewed-on: #8	2025-12-22 03:10:35 +00:00
kqjy	3c44152fc6	Merge pull request 'MyFSIO v0.1.6 Release' (#7 ) from next into main Reviewed-on: #7	2025-12-21 06:30:21 +00:00
kqjy	397515edce	Merge pull request 'MyFSIO v0.1.5 Release' (#6 ) from next into main Reviewed-on: #6	2025-12-13 15:41:03 +00:00
kqjy	980fced7e4	Merge pull request 'MyFSIO v0.1.4 Release' (#5 ) from next into main Reviewed-on: #5	2025-12-13 08:22:43 +00:00
kqjy	bae5009ec4	Merge pull request 'Release v0.1.3' (#4 ) from next into main Reviewed-on: #4	2025-12-03 04:14:57 +00:00
kqjy	233780617f	Merge pull request 'Release V0.1.2' (#3 ) from next into main Reviewed-on: #3	2025-11-26 04:59:15 +00:00
kqjy	fd8fb21517	Merge pull request 'Prepare for binary release' (#2 ) from next into main Reviewed-on: #2	2025-11-22 12:33:38 +00:00
kqjy	c6cbe822e1	Merge pull request 'Release v0.1.1' (#1 ) from next into main Reviewed-on: #1	2025-11-22 12:31:27 +00:00