alexei.dolgolyov
98a33bca54
- Convert stacked sections to tabbed interface (Player, Browser, Actions, Scripts, Callbacks) with localStorage persistence - Add in-memory directory listing cache (5-min TTL) with nocache bypass for refresh - Defer stat()/duration calls to paginated items only for faster browse - Move mini player from top to bottom with footer padding fix - Always show scrollbar to prevent layout shift between tabs - Add tab localization keys (en/ru) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
274 lines
9.1 KiB
Python
274 lines
9.1 KiB
Python
"""Browser service for media file browsing and path validation."""
|
|
|
|
import logging
|
|
import os
|
|
import time
|
|
from datetime import datetime
|
|
from pathlib import Path
|
|
from typing import Optional
|
|
|
|
from ..config import settings
|
|
|
|
# Directory listing cache: {resolved_path_str: (timestamp, all_items)}
|
|
_dir_cache: dict[str, tuple[float, list[dict]]] = {}
|
|
DIR_CACHE_TTL = 300 # 5 minutes
|
|
|
|
try:
|
|
from mutagen import File as MutagenFile
|
|
HAS_MUTAGEN = True
|
|
except ImportError:
|
|
HAS_MUTAGEN = False
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
# Media file extensions
|
|
AUDIO_EXTENSIONS = {".mp3", ".m4a", ".flac", ".wav", ".ogg", ".aac", ".wma", ".opus"}
|
|
VIDEO_EXTENSIONS = {".mp4", ".mkv", ".avi", ".mov", ".wmv", ".webm", ".flv"}
|
|
MEDIA_EXTENSIONS = AUDIO_EXTENSIONS | VIDEO_EXTENSIONS
|
|
|
|
|
|
class BrowserService:
|
|
"""Service for browsing media files with path validation."""
|
|
|
|
@staticmethod
|
|
def validate_path(folder_id: str, requested_path: str) -> Path:
|
|
"""Validate and resolve a path within an allowed folder.
|
|
|
|
Args:
|
|
folder_id: ID of the configured media folder.
|
|
requested_path: Path to validate (relative to folder root or absolute).
|
|
|
|
Returns:
|
|
Resolved absolute Path object.
|
|
|
|
Raises:
|
|
ValueError: If folder_id invalid or path traversal attempted.
|
|
FileNotFoundError: If path does not exist.
|
|
"""
|
|
# Get folder config
|
|
if folder_id not in settings.media_folders:
|
|
raise ValueError(f"Media folder '{folder_id}' not configured")
|
|
|
|
folder_config = settings.media_folders[folder_id]
|
|
if not folder_config.enabled:
|
|
raise ValueError(f"Media folder '{folder_id}' is disabled")
|
|
|
|
# Get base path
|
|
base_path = Path(folder_config.path).resolve()
|
|
if not base_path.exists():
|
|
raise FileNotFoundError(f"Media folder path does not exist: {base_path}")
|
|
if not base_path.is_dir():
|
|
raise ValueError(f"Media folder path is not a directory: {base_path}")
|
|
|
|
# Handle relative vs absolute paths
|
|
if requested_path.startswith("/") or requested_path.startswith("\\"):
|
|
# Relative to folder root (remove leading slash)
|
|
requested_path = requested_path.lstrip("/\\")
|
|
|
|
# Build and resolve full path
|
|
if requested_path:
|
|
full_path = (base_path / requested_path).resolve()
|
|
else:
|
|
full_path = base_path
|
|
|
|
# Security check: Ensure resolved path is within base path
|
|
try:
|
|
full_path.relative_to(base_path)
|
|
except ValueError:
|
|
logger.warning(
|
|
f"Path traversal attempt detected: {requested_path} "
|
|
f"(resolved to {full_path}, base: {base_path})"
|
|
)
|
|
raise ValueError("Path traversal not allowed")
|
|
|
|
# Check if path exists
|
|
if not full_path.exists():
|
|
raise FileNotFoundError(f"Path does not exist: {requested_path}")
|
|
|
|
return full_path
|
|
|
|
@staticmethod
|
|
def is_media_file(path: Path) -> bool:
|
|
"""Check if a file is a media file based on extension.
|
|
|
|
Args:
|
|
path: Path to check.
|
|
|
|
Returns:
|
|
True if file is a media file, False otherwise.
|
|
"""
|
|
return path.suffix.lower() in MEDIA_EXTENSIONS
|
|
|
|
@staticmethod
|
|
def get_file_type(path: Path) -> str:
|
|
"""Get the file type (folder, audio, video, other).
|
|
|
|
Args:
|
|
path: Path to check.
|
|
|
|
Returns:
|
|
File type string: "folder", "audio", "video", or "other".
|
|
"""
|
|
if path.is_dir():
|
|
return "folder"
|
|
|
|
suffix = path.suffix.lower()
|
|
if suffix in AUDIO_EXTENSIONS:
|
|
return "audio"
|
|
elif suffix in VIDEO_EXTENSIONS:
|
|
return "video"
|
|
else:
|
|
return "other"
|
|
|
|
@staticmethod
|
|
def get_duration(file_path: Path) -> Optional[float]:
|
|
"""Get duration of a media file in seconds (header-only read).
|
|
|
|
Args:
|
|
file_path: Path to the media file.
|
|
|
|
Returns:
|
|
Duration in seconds, or None if unavailable.
|
|
"""
|
|
if not HAS_MUTAGEN:
|
|
return None
|
|
try:
|
|
audio = MutagenFile(str(file_path))
|
|
if audio is not None and hasattr(audio, "info") and hasattr(audio.info, "length"):
|
|
return round(audio.info.length, 2)
|
|
except Exception:
|
|
pass
|
|
return None
|
|
|
|
@staticmethod
|
|
def browse_directory(
|
|
folder_id: str,
|
|
path: str = "",
|
|
offset: int = 0,
|
|
limit: int = 100,
|
|
nocache: bool = False,
|
|
) -> dict:
|
|
"""Browse a directory and return items with metadata.
|
|
|
|
Args:
|
|
folder_id: ID of the configured media folder.
|
|
path: Path to browse (relative to folder root).
|
|
offset: Pagination offset (default: 0).
|
|
limit: Maximum items to return (default: 100).
|
|
|
|
Returns:
|
|
Dictionary with:
|
|
- current_path: Current path (relative to folder root)
|
|
- parent_path: Parent path (None if at root)
|
|
- items: List of file/folder items
|
|
- total: Total number of items
|
|
- offset: Current offset
|
|
- limit: Current limit
|
|
- folder_id: Folder ID
|
|
|
|
Raises:
|
|
ValueError: If path validation fails.
|
|
FileNotFoundError: If path does not exist.
|
|
"""
|
|
# Validate path
|
|
full_path = BrowserService.validate_path(folder_id, path)
|
|
|
|
# Get base path for relative path calculation
|
|
folder_config = settings.media_folders[folder_id]
|
|
base_path = Path(folder_config.path).resolve()
|
|
|
|
# Check if it's a directory
|
|
if not full_path.is_dir():
|
|
raise ValueError(f"Path is not a directory: {path}")
|
|
|
|
# Calculate relative path
|
|
try:
|
|
relative_path = full_path.relative_to(base_path)
|
|
current_path = "/" + str(relative_path).replace("\\", "/") if str(relative_path) != "." else "/"
|
|
except ValueError:
|
|
current_path = "/"
|
|
|
|
# Calculate parent path
|
|
if full_path == base_path:
|
|
parent_path = None
|
|
else:
|
|
parent_relative = full_path.parent.relative_to(base_path)
|
|
parent_path = "/" + str(parent_relative).replace("\\", "/") if str(parent_relative) != "." else "/"
|
|
|
|
# List directory contents (with caching)
|
|
try:
|
|
cache_key = str(full_path)
|
|
now = time.monotonic()
|
|
|
|
# Check cache
|
|
if not nocache and cache_key in _dir_cache:
|
|
cached_time, cached_items = _dir_cache[cache_key]
|
|
if now - cached_time < DIR_CACHE_TTL:
|
|
all_items = cached_items
|
|
else:
|
|
del _dir_cache[cache_key]
|
|
all_items = None
|
|
else:
|
|
all_items = None
|
|
|
|
# Enumerate directory if not cached
|
|
if all_items is None:
|
|
all_items = []
|
|
for item in full_path.iterdir():
|
|
if item.name.startswith("."):
|
|
continue
|
|
|
|
is_dir = item.is_dir()
|
|
if is_dir:
|
|
file_type = "folder"
|
|
else:
|
|
suffix = item.suffix.lower()
|
|
if suffix in AUDIO_EXTENSIONS:
|
|
file_type = "audio"
|
|
elif suffix in VIDEO_EXTENSIONS:
|
|
file_type = "video"
|
|
else:
|
|
continue
|
|
|
|
all_items.append({
|
|
"name": item.name,
|
|
"type": file_type,
|
|
"is_media": file_type in ("audio", "video"),
|
|
})
|
|
|
|
all_items.sort(key=lambda x: (x["type"] != "folder", x["name"].lower()))
|
|
_dir_cache[cache_key] = (now, all_items)
|
|
|
|
# Apply pagination
|
|
total = len(all_items)
|
|
items = all_items[offset:offset + limit]
|
|
|
|
# Fetch stat + duration only for items on the current page
|
|
for item in items:
|
|
item_path = full_path / item["name"]
|
|
try:
|
|
stat = item_path.stat()
|
|
item["size"] = stat.st_size if item["type"] != "folder" else None
|
|
item["modified"] = datetime.fromtimestamp(stat.st_mtime).isoformat()
|
|
except (OSError, PermissionError):
|
|
item["size"] = None
|
|
item["modified"] = None
|
|
|
|
if item["is_media"]:
|
|
item["duration"] = BrowserService.get_duration(item_path)
|
|
else:
|
|
item["duration"] = None
|
|
|
|
return {
|
|
"folder_id": folder_id,
|
|
"current_path": current_path,
|
|
"parent_path": parent_path,
|
|
"items": items,
|
|
"total": total,
|
|
"offset": offset,
|
|
"limit": limit,
|
|
}
|
|
|
|
except PermissionError:
|
|
raise ValueError(f"Permission denied accessing path: {path}")
|