1030 lines
40 KiB
Python
1030 lines
40 KiB
Python
"""Download media files using yt-dlp with support for direct file downloads.
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Lean, focused downloader without event infrastructure overhead.
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- yt-dlp integration for streaming sites
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- Direct file download fallback for PDFs, images, documents
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- Tag extraction via metadata.extract_ytdlp_tags()
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- Logging via helper.logger.log()
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"""
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from __future__ import annotations
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import glob # noqa: F401
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import hashlib
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import json # noqa: F401
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import random
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import re
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import string
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import subprocess
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import sys
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import time
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import traceback
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from pathlib import Path
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from typing import Any, Dict, Iterator, List, Optional
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from urllib.parse import urljoin
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import httpx
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from helper.logger import log, debug
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from .utils import ensure_directory, sha256_file
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from .http_client import HTTPClient
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from models import DownloadError, DownloadOptions, DownloadMediaResult, DebugLogger, ProgressBar
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from hydrus_health_check import get_cookies_file_path
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try:
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import yt_dlp # type: ignore
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from yt_dlp.extractor import gen_extractors # type: ignore
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except Exception as exc:
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yt_dlp = None # type: ignore
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YTDLP_IMPORT_ERROR = exc
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else:
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YTDLP_IMPORT_ERROR = None
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try:
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from metadata import extract_ytdlp_tags
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except ImportError:
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extract_ytdlp_tags = None
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_EXTRACTOR_CACHE: List[Any] | None = None
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def _ensure_yt_dlp_ready() -> None:
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"""Verify yt-dlp is available, raise if not."""
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if yt_dlp is not None:
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return
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detail = str(YTDLP_IMPORT_ERROR or "yt-dlp is not installed")
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raise DownloadError(f"yt-dlp module not available: {detail}")
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def _progress_callback(status: Dict[str, Any]) -> None:
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"""Simple progress callback using logger."""
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event = status.get("status")
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if event == "downloading":
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percent = status.get("_percent_str", "?")
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speed = status.get("_speed_str", "?")
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eta = status.get("_eta_str", "?")
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# Print progress to stdout with carriage return to update in place
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sys.stdout.write(f"\r[download] {percent} at {speed} ETA {eta} ")
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sys.stdout.flush()
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elif event == "finished":
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# Clear the progress line
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sys.stdout.write("\r" + " " * 70 + "\r")
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sys.stdout.flush()
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# Log finished message (visible)
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debug(f"✓ Download finished: {status.get('filename')}")
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elif event in ("postprocessing", "processing"):
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debug(f"Post-processing: {status.get('postprocessor')}")
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def is_url_supported_by_ytdlp(url: str) -> bool:
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"""Check if URL is supported by yt-dlp."""
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if yt_dlp is None:
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return False
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global _EXTRACTOR_CACHE
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if _EXTRACTOR_CACHE is None:
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try:
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_EXTRACTOR_CACHE = [ie for ie in gen_extractors()] # type: ignore[arg-type]
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except Exception:
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_EXTRACTOR_CACHE = []
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for extractor in _EXTRACTOR_CACHE:
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try:
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if not extractor.suitable(url):
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continue
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except Exception:
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continue
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name = getattr(extractor, "IE_NAME", "")
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if name.lower() == "generic":
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continue
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return True
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return False
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def list_formats(url: str, no_playlist: bool = False, playlist_items: Optional[str] = None) -> Optional[List[Dict[str, Any]]]:
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"""Get list of available formats for a URL using yt-dlp.
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Args:
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url: URL to get formats for
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no_playlist: If True, ignore playlists and list formats for single video
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playlist_items: If specified, only list formats for these playlist items (e.g., "1,3,5-8")
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Returns:
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List of format dictionaries with keys: format_id, format, resolution, fps, vcodec, acodec, filesize, etc.
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Returns None if yt-dlp is not available or format listing fails.
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"""
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_ensure_yt_dlp_ready()
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try:
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ydl_opts = {
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"quiet": True,
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"no_warnings": True,
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"socket_timeout": 30,
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}
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# Add no_playlist option if specified
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if no_playlist:
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ydl_opts["noplaylist"] = True
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# Add playlist_items filter if specified
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if playlist_items:
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ydl_opts["playlist_items"] = playlist_items
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with yt_dlp.YoutubeDL(ydl_opts) as ydl:
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debug(f"Fetching format list for: {url}")
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info = ydl.extract_info(url, download=False)
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formats = info.get("formats", [])
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if not formats:
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log("No formats available", file=sys.stderr)
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return None
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# Parse and extract relevant format info
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result_formats = []
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for fmt in formats:
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format_info = {
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"format_id": fmt.get("format_id", ""),
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"format": fmt.get("format", ""),
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"ext": fmt.get("ext", ""),
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"resolution": fmt.get("resolution", ""),
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"width": fmt.get("width"),
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"height": fmt.get("height"),
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"fps": fmt.get("fps"),
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"vcodec": fmt.get("vcodec", "none"),
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"acodec": fmt.get("acodec", "none"),
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"filesize": fmt.get("filesize"),
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"tbr": fmt.get("tbr"), # Total bitrate
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}
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result_formats.append(format_info)
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debug(f"Found {len(result_formats)} available formats")
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return result_formats
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except Exception as e:
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log(f"✗ Error fetching formats: {e}", file=sys.stderr)
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return None
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def _download_with_sections_via_cli(url: str, ytdl_options: Dict[str, Any], sections: List[str]) -> tuple[Optional[str], Dict[str, Any]]:
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"""Download each section separately so merge-file can combine them.
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yt-dlp with multiple --download-sections args merges them into one file.
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We need separate files for merge-file, so download each section individually.
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Uses hash-based filenames for sections (not title-based) to prevent yt-dlp from
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thinking sections are already downloaded. The title is extracted and stored in tags.
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Returns:
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(session_id, first_section_info_dict) - session_id for finding files, info dict for metadata extraction
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"""
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sections_list = ytdl_options.get("download_sections", [])
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if not sections_list:
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return "", {}
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# Generate a unique hash-based ID for this download session
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# This ensures different videos/downloads don't have filename collisions
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session_id = hashlib.md5(
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(url + str(time.time()) + ''.join(random.choices(string.ascii_letters, k=10))).encode()
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).hexdigest()[:12]
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first_section_info = None
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title_from_first = None
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# Download each section separately with unique output template using session ID
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for section_idx, section in enumerate(sections_list, 1):
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# Build unique output template for this section using session-based filename
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# e.g., "{session_id}_{section_idx}.ext" - simple and unique per section
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base_outtmpl = ytdl_options.get("outtmpl", "%(title)s.%(ext)s")
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output_dir_path = Path(base_outtmpl).parent
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# Use session_id + section index for temp filename
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# e.g., "/path/{session_id}_1.%(ext)s"
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filename_tmpl = f"{session_id}_{section_idx}"
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if base_outtmpl.endswith(".%(ext)s"):
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filename_tmpl += ".%(ext)s"
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# Use Path to handle separators correctly for the OS
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section_outtmpl = str(output_dir_path / filename_tmpl)
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# For the first section, extract metadata first (separate call)
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if section_idx == 1:
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metadata_cmd = ["yt-dlp", "--dump-json", "--skip-download"]
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if ytdl_options.get("cookiefile"):
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cookies_path = ytdl_options["cookiefile"].replace("\\", "/")
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metadata_cmd.extend(["--cookies", cookies_path])
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if ytdl_options.get("noplaylist"):
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metadata_cmd.append("--no-playlist")
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metadata_cmd.append(url)
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try:
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meta_result = subprocess.run(metadata_cmd, capture_output=True, text=True)
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if meta_result.returncode == 0 and meta_result.stdout:
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try:
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info_dict = json.loads(meta_result.stdout.strip())
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first_section_info = info_dict
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title_from_first = info_dict.get('title')
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debug(f"Extracted title from metadata: {title_from_first}")
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except json.JSONDecodeError:
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debug("Could not parse JSON metadata")
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except Exception as e:
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debug(f"Error extracting metadata: {e}")
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# Build yt-dlp command for downloading this section
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cmd = ["yt-dlp"]
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# Add format
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if ytdl_options.get("format"):
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cmd.extend(["-f", ytdl_options["format"]])
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# Add ONLY this section (not all sections)
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cmd.extend(["--download-sections", section])
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# Add force-keyframes-at-cuts if specified
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if ytdl_options.get("force_keyframes_at_cuts"):
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cmd.append("--force-keyframes-at-cuts")
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# Add output template for this section
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cmd.extend(["-o", section_outtmpl])
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# Add cookies file if present
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if ytdl_options.get("cookiefile"):
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# Convert backslashes to forward slashes for better compatibility
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cookies_path = ytdl_options["cookiefile"].replace("\\", "/")
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cmd.extend(["--cookies", cookies_path])
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# Add no-playlist if specified
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if ytdl_options.get("noplaylist"):
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cmd.append("--no-playlist")
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# Add the URL
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cmd.append(url)
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debug(f"Running yt-dlp for section {section_idx}/{len(sections_list)}: {section}")
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debug(f"Command: {' '.join(cmd)}")
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# Run the subprocess - don't capture output so progress is shown
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try:
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result = subprocess.run(cmd)
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if result.returncode != 0:
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raise DownloadError(f"yt-dlp subprocess failed for section {section_idx} with code {result.returncode}")
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except Exception as exc:
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raise DownloadError(f"yt-dlp subprocess error for section {section_idx}: {exc}") from exc
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return session_id, first_section_info or {}
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def _build_ytdlp_options(opts: DownloadOptions) -> Dict[str, Any]:
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"""Build yt-dlp download options."""
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ensure_directory(opts.output_dir)
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# Build output template
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# When downloading sections, each section will have .section_N_of_M added by _download_with_sections_via_cli
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outtmpl = str((opts.output_dir / "%(title)s.%(ext)s").resolve())
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base_options: Dict[str, Any] = {
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"outtmpl": outtmpl,
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"quiet": True,
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"no_warnings": True,
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"noprogress": True,
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"socket_timeout": 30,
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"retries": 10,
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"fragment_retries": 10,
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"http_chunk_size": 10_485_760,
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"restrictfilenames": True,
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"progress_hooks": [_progress_callback],
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}
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if opts.cookies_path and opts.cookies_path.is_file():
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base_options["cookiefile"] = str(opts.cookies_path)
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else:
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# Check global cookies file
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global_cookies = get_cookies_file_path()
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if global_cookies:
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base_options["cookiefile"] = global_cookies
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else:
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# Fallback to browser cookies
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base_options["cookiesfrombrowser"] = ("chrome",)
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# Add no-playlist option if specified (for single video from playlist URLs)
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if opts.no_playlist:
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base_options["noplaylist"] = True
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# Configure based on mode
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if opts.mode == "audio":
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base_options["format"] = opts.ytdl_format or "251/140/bestaudio"
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base_options["postprocessors"] = [{"key": "FFmpegExtractAudio"}]
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else: # video
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base_options["format"] = opts.ytdl_format or "bestvideo+bestaudio/best"
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base_options["format_sort"] = [
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"res:4320", "res:2880", "res:2160", "res:1440", "res:1080", "res:720", "res"
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]
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# Add clip sections if provided (yt-dlp will download only these sections)
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if opts.clip_sections:
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# Parse section ranges like "48-65,120-152,196-205" (seconds)
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# and convert to yt-dlp format: "*HH:MM:SS-HH:MM:SS,*HH:MM:SS-HH:MM:SS"
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sections = []
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for section_range in opts.clip_sections.split(','):
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try:
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start_str, end_str = section_range.strip().split('-')
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start_sec = float(start_str)
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end_sec = float(end_str)
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# Convert seconds to HH:MM:SS format
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def sec_to_hhmmss(seconds):
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hours = int(seconds // 3600)
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minutes = int((seconds % 3600) // 60)
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secs = int(seconds % 60)
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return f"{hours:02d}:{minutes:02d}:{secs:02d}"
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start_time = sec_to_hhmmss(start_sec)
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end_time = sec_to_hhmmss(end_sec)
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sections.append(f"*{start_time}-{end_time}")
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except (ValueError, AttributeError):
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pass
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if sections:
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# Pass each section as a separate element in the list (yt-dlp expects multiple --download-sections args)
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base_options["download_sections"] = sections
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debug(f"Download sections configured: {', '.join(sections)}")
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# Note: Not using --force-keyframes-at-cuts to avoid re-encoding
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# This may result in less precise cuts but faster downloads
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# Add playlist items selection if provided
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if opts.playlist_items:
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base_options["playlist_items"] = opts.playlist_items
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debug(f"yt-dlp: mode={opts.mode}, format={base_options.get('format')}")
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return base_options
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def _iter_download_entries(info: Dict[str, Any]) -> Iterator[Dict[str, Any]]:
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"""Iterate through download entries, handling playlists."""
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queue: List[Dict[str, Any]] = [info]
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seen: set[int] = set()
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while queue:
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current = queue.pop(0)
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obj_id = id(current)
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if obj_id in seen:
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continue
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seen.add(obj_id)
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entries = current.get("entries")
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if isinstance(entries, list):
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for entry in entries:
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if isinstance(entry, dict):
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queue.append(entry)
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if current.get("requested_downloads") or not entries:
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yield current
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def _candidate_paths(entry: Dict[str, Any], output_dir: Path) -> Iterator[Path]:
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"""Get candidate file paths for downloaded media."""
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requested = entry.get("requested_downloads")
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if isinstance(requested, list):
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for item in requested:
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if isinstance(item, dict):
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for key in ("filepath", "_filename", "filename"):
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value = item.get(key)
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if value:
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yield Path(value)
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for key in ("filepath", "_filename", "filename"):
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value = entry.get(key)
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if value:
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yield Path(value)
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if entry.get("filename"):
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yield output_dir / entry["filename"]
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|
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def _resolve_entry_and_path(info: Dict[str, Any], output_dir: Path) -> tuple[Dict[str, Any], Path]:
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"""Find downloaded file in yt-dlp metadata."""
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for entry in _iter_download_entries(info):
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for candidate in _candidate_paths(entry, output_dir):
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if candidate.is_file():
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return entry, candidate
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if not candidate.is_absolute():
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resolved = output_dir / candidate
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if resolved.is_file():
|
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return entry, resolved
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raise FileNotFoundError("yt-dlp did not report a downloaded media file")
|
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|
|
|
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def _extract_sha256(info: Dict[str, Any]) -> Optional[str]:
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"""Extract SHA256 hash from yt-dlp metadata."""
|
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for payload in [info] + info.get("entries", []):
|
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if not isinstance(payload, dict):
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continue
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hashes = payload.get("hashes")
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if isinstance(hashes, dict):
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for key in ("sha256", "sha-256", "sha_256"):
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value = hashes.get(key)
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if isinstance(value, str) and value.strip():
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return value.strip().lower()
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for key in ("sha256", "sha-256", "sha_256"):
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value = payload.get(key)
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if isinstance(value, str) and value.strip():
|
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return value.strip().lower()
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return None
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|
|
|
|
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def _get_libgen_download_url(libgen_url: str) -> Optional[str]:
|
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"""Extract the actual download link from LibGen redirect URL.
|
|
|
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LibGen URLs like https://libgen.gl/file.php?id=123456 redirect to
|
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actual mirror URLs. This follows the redirect chain to get the real file.
|
|
|
|
Args:
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|
libgen_url: LibGen file.php URL
|
|
|
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Returns:
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Actual download URL or None if extraction fails
|
|
"""
|
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try:
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import requests
|
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from urllib.parse import urlparse
|
|
|
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# Check if this is a LibGen URL
|
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parsed = urlparse(libgen_url)
|
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if 'libgen' not in parsed.netloc.lower():
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return None
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|
|
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if '/file.php' not in parsed.path.lower():
|
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return None
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|
|
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# LibGen redirects to actual mirrors, follow redirects to get final URL
|
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session = requests.Session()
|
|
session.headers.update({
|
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'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
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})
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|
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debug(f"Following LibGen redirect chain for: {libgen_url}")
|
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|
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# First, get the page and look for direct download link
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try:
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response = session.get(libgen_url, timeout=10, allow_redirects=True)
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final_url = response.url
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|
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# Try to find actual download link in the page
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try:
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from bs4 import BeautifulSoup
|
|
soup = BeautifulSoup(response.content, 'html.parser')
|
|
|
|
# Look for download links - LibGen typically has forms with download buttons
|
|
# Look for all links and forms that might lead to download
|
|
for link in soup.find_all('a'):
|
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href = link.get('href')
|
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if href and isinstance(href, str):
|
|
# Look for direct file links or get.php redirects
|
|
if 'get.php' in href.lower() or href.endswith(('.pdf', '.epub', '.djvu', '.mobi')):
|
|
download_url = href if href.startswith('http') else urljoin(final_url, href)
|
|
debug(f"Found download link: {download_url}")
|
|
return download_url
|
|
except ImportError:
|
|
pass # BeautifulSoup not available
|
|
|
|
# If we followed redirects successfully, return the final URL
|
|
# This handles cases where libgen redirects to a direct download mirror
|
|
if final_url != libgen_url:
|
|
debug(f"LibGen resolved to mirror: {final_url}")
|
|
return final_url
|
|
|
|
except requests.RequestException as e:
|
|
log(f"Error following LibGen redirects: {e}", file=sys.stderr)
|
|
# Try head request as fallback
|
|
try:
|
|
response = session.head(libgen_url, allow_redirects=True, timeout=10)
|
|
if response.url != libgen_url:
|
|
debug(f"LibGen HEAD resolved to: {response.url}")
|
|
return response.url
|
|
except:
|
|
pass
|
|
|
|
return None
|
|
|
|
except Exception as e:
|
|
log(f"Error resolving LibGen URL: {e}", file=sys.stderr)
|
|
return None
|
|
|
|
|
|
def _download_direct_file(
|
|
url: str,
|
|
output_dir: Path,
|
|
debug_logger: Optional[DebugLogger] = None,
|
|
) -> DownloadMediaResult:
|
|
"""Download a direct file (PDF, image, document, etc.) without yt-dlp."""
|
|
ensure_directory(output_dir)
|
|
|
|
from urllib.parse import unquote, urlparse, parse_qs
|
|
import re
|
|
|
|
# Extract filename from URL
|
|
parsed_url = urlparse(url)
|
|
url_path = parsed_url.path
|
|
|
|
# Try to get filename from query parameters first (for LibGen and similar services)
|
|
# e.g., ?filename=Book+Title.pdf or &download=filename.pdf
|
|
filename = None
|
|
if parsed_url.query:
|
|
query_params = parse_qs(parsed_url.query)
|
|
for param_name in ('filename', 'download', 'file', 'name'):
|
|
if param_name in query_params and query_params[param_name]:
|
|
filename = query_params[param_name][0]
|
|
filename = unquote(filename)
|
|
break
|
|
|
|
# If not found in query params, extract from URL path
|
|
if not filename or not filename.strip():
|
|
filename = url_path.split("/")[-1] if url_path else ""
|
|
filename = unquote(filename)
|
|
|
|
# Remove query strings from filename if any
|
|
if "?" in filename:
|
|
filename = filename.split("?")[0]
|
|
|
|
# Try to get real filename from Content-Disposition header (HEAD request)
|
|
try:
|
|
with HTTPClient(timeout=10.0) as client:
|
|
response = client._request("HEAD", url, follow_redirects=True)
|
|
content_disposition = response.headers.get("content-disposition", "")
|
|
if content_disposition:
|
|
# Extract filename from Content-Disposition header
|
|
# Format: attachment; filename="filename.pdf" or filename=filename.pdf
|
|
match = re.search(r'filename\*?=(?:"([^"]*)"|([^;\s]*))', content_disposition)
|
|
if match:
|
|
extracted_name = match.group(1) or match.group(2)
|
|
if extracted_name:
|
|
filename = unquote(extracted_name)
|
|
debug(f"Filename from Content-Disposition: {filename}")
|
|
except Exception as e:
|
|
log(f"Could not get filename from headers: {e}", file=sys.stderr)
|
|
|
|
# Fallback if we still don't have a good filename
|
|
if not filename or "." not in filename:
|
|
filename = "downloaded_file.bin"
|
|
|
|
file_path = output_dir / filename
|
|
progress_bar = ProgressBar()
|
|
|
|
debug(f"Direct download: {filename}")
|
|
|
|
try:
|
|
start_time = time.time()
|
|
downloaded_bytes = [0]
|
|
total_bytes = [0]
|
|
last_progress_time = [start_time]
|
|
|
|
def progress_callback(bytes_downloaded: int, content_length: int) -> None:
|
|
downloaded_bytes[0] = bytes_downloaded
|
|
total_bytes[0] = content_length
|
|
|
|
now = time.time()
|
|
if now - last_progress_time[0] >= 0.5 and total_bytes[0] > 0:
|
|
elapsed = now - start_time
|
|
percent = (bytes_downloaded / content_length) * 100 if content_length > 0 else 0
|
|
speed = bytes_downloaded / elapsed if elapsed > 0 else 0
|
|
eta_seconds = (content_length - bytes_downloaded) / speed if speed > 0 else 0
|
|
|
|
speed_str = progress_bar.format_bytes(speed) + "/s"
|
|
minutes, seconds = divmod(int(eta_seconds), 60)
|
|
hours, minutes = divmod(minutes, 60)
|
|
eta_str = f"{hours:02d}:{minutes:02d}:{seconds:02d}"
|
|
|
|
progress_line = progress_bar.format_progress(
|
|
percent_str=f"{percent:.1f}%",
|
|
downloaded=bytes_downloaded,
|
|
total=content_length,
|
|
speed_str=speed_str,
|
|
eta_str=eta_str,
|
|
)
|
|
debug(progress_line)
|
|
last_progress_time[0] = now
|
|
|
|
with HTTPClient(timeout=30.0) as client:
|
|
client.download(url, str(file_path), progress_callback=progress_callback)
|
|
|
|
elapsed = time.time() - start_time
|
|
avg_speed_str = progress_bar.format_bytes(downloaded_bytes[0] / elapsed if elapsed > 0 else 0) + "/s"
|
|
debug(f"✓ Downloaded in {elapsed:.1f}s at {avg_speed_str}")
|
|
|
|
# For direct file downloads, create minimal info dict without filename as title
|
|
# This prevents creating duplicate title: tags when filename gets auto-generated
|
|
# We'll add title back later only if we couldn't extract meaningful tags
|
|
info = {
|
|
"id": filename.rsplit(".", 1)[0],
|
|
"ext": filename.rsplit(".", 1)[1] if "." in filename else "bin",
|
|
"webpage_url": url,
|
|
}
|
|
|
|
hash_value = None
|
|
try:
|
|
hash_value = sha256_file(file_path)
|
|
except Exception:
|
|
pass
|
|
|
|
tags = []
|
|
if extract_ytdlp_tags:
|
|
try:
|
|
tags = extract_ytdlp_tags(info)
|
|
except Exception as e:
|
|
log(f"Error extracting tags: {e}", file=sys.stderr)
|
|
|
|
# Only use filename as a title tag if we couldn't extract any meaningful tags
|
|
# This prevents duplicate title: tags when the filename could be mistaken for metadata
|
|
if not any(t.startswith('title:') for t in tags):
|
|
# Re-extract tags with filename as title only if needed
|
|
info['title'] = filename
|
|
tags = []
|
|
if extract_ytdlp_tags:
|
|
try:
|
|
tags = extract_ytdlp_tags(info)
|
|
except Exception as e:
|
|
log(f"Error extracting tags with filename: {e}", file=sys.stderr)
|
|
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"direct-file-downloaded",
|
|
{"url": url, "path": str(file_path), "hash": hash_value},
|
|
)
|
|
|
|
return DownloadMediaResult(
|
|
path=file_path,
|
|
info=info,
|
|
tags=tags,
|
|
source_url=url,
|
|
hash_value=hash_value,
|
|
)
|
|
|
|
except (httpx.HTTPError, httpx.RequestError) as exc:
|
|
log(f"Download error: {exc}", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"exception",
|
|
{"phase": "direct-file", "url": url, "error": str(exc)},
|
|
)
|
|
raise DownloadError(f"Failed to download {url}: {exc}") from exc
|
|
except Exception as exc:
|
|
log(f"Error downloading file: {exc}", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"exception",
|
|
{
|
|
"phase": "direct-file",
|
|
"url": url,
|
|
"error": str(exc),
|
|
"traceback": traceback.format_exc(),
|
|
},
|
|
)
|
|
raise DownloadError(f"Error downloading file: {exc}") from exc
|
|
|
|
|
|
def probe_url(url: str, no_playlist: bool = False) -> Optional[Dict[str, Any]]:
|
|
"""Probe URL to extract metadata WITHOUT downloading.
|
|
|
|
Args:
|
|
url: URL to probe
|
|
no_playlist: If True, ignore playlists and probe only the single video
|
|
|
|
Returns:
|
|
Dict with keys: extractor, title, entries (if playlist), duration, etc.
|
|
Returns None if not supported by yt-dlp.
|
|
"""
|
|
if not is_url_supported_by_ytdlp(url):
|
|
return None
|
|
|
|
_ensure_yt_dlp_ready()
|
|
|
|
assert yt_dlp is not None
|
|
try:
|
|
# Extract info without downloading
|
|
# Use extract_flat='in_playlist' to get full metadata for playlist items
|
|
ydl_opts = {
|
|
"quiet": True, # Suppress all output
|
|
"no_warnings": True,
|
|
"socket_timeout": 10,
|
|
"retries": 3,
|
|
"skip_download": True, # Don't actually download
|
|
"extract_flat": "in_playlist", # Get playlist with metadata for each entry
|
|
"noprogress": True, # No progress bars
|
|
}
|
|
|
|
# Add cookies if available
|
|
global_cookies = get_cookies_file_path()
|
|
if global_cookies:
|
|
ydl_opts["cookiefile"] = global_cookies
|
|
|
|
# Add no_playlist option if specified
|
|
if no_playlist:
|
|
ydl_opts["noplaylist"] = True
|
|
|
|
with yt_dlp.YoutubeDL(ydl_opts) as ydl: # type: ignore[arg-type]
|
|
info = ydl.extract_info(url, download=False)
|
|
|
|
if not isinstance(info, dict):
|
|
return None
|
|
|
|
# Extract relevant fields
|
|
return {
|
|
"extractor": info.get("extractor", ""),
|
|
"title": info.get("title", ""),
|
|
"entries": info.get("entries", []), # Will be populated if playlist
|
|
"duration": info.get("duration"),
|
|
"uploader": info.get("uploader"),
|
|
"description": info.get("description"),
|
|
"url": url,
|
|
}
|
|
except Exception as exc:
|
|
log(f"Probe failed for {url}: {exc}")
|
|
return None
|
|
|
|
|
|
def download_media(
|
|
opts: DownloadOptions,
|
|
*,
|
|
debug_logger: Optional[DebugLogger] = None,
|
|
) -> DownloadMediaResult:
|
|
"""Download media from URL using yt-dlp or direct HTTP download.
|
|
|
|
Args:
|
|
opts: DownloadOptions with url, mode, output_dir, etc.
|
|
debug_logger: Optional debug logger for troubleshooting
|
|
|
|
Returns:
|
|
DownloadMediaResult with path, info, tags, hash
|
|
|
|
Raises:
|
|
DownloadError: If download fails
|
|
"""
|
|
# Handle LibGen URLs specially
|
|
# file.php redirects to mirrors, get.php is direct from modern API
|
|
if 'libgen' in opts.url.lower():
|
|
if '/get.php' in opts.url.lower():
|
|
# Modern API get.php links are direct downloads from mirrors (not file redirects)
|
|
log(f"Detected LibGen get.php URL, downloading directly...")
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("libgen-direct", {"url": opts.url})
|
|
return _download_direct_file(opts.url, opts.output_dir, debug_logger)
|
|
elif '/file.php' in opts.url.lower():
|
|
# Old-style file.php redirects to mirrors, we need to resolve
|
|
log(f"Detected LibGen file.php URL, resolving to actual mirror...")
|
|
actual_url = _get_libgen_download_url(opts.url)
|
|
if actual_url and actual_url != opts.url:
|
|
log(f"Resolved LibGen URL to mirror: {actual_url}")
|
|
opts.url = actual_url
|
|
# After resolution, this will typically be an onion link or direct file
|
|
# Skip yt-dlp for this (it won't support onion/mirrors), go direct
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("libgen-resolved", {"original": opts.url, "resolved": actual_url})
|
|
return _download_direct_file(opts.url, opts.output_dir, debug_logger)
|
|
else:
|
|
log(f"Could not resolve LibGen URL, trying direct download anyway", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("libgen-resolve-failed", {"url": opts.url})
|
|
return _download_direct_file(opts.url, opts.output_dir, debug_logger)
|
|
|
|
# Try yt-dlp first if URL is supported
|
|
if not is_url_supported_by_ytdlp(opts.url):
|
|
log(f"URL not supported by yt-dlp, trying direct download: {opts.url}")
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("direct-file-attempt", {"url": opts.url})
|
|
return _download_direct_file(opts.url, opts.output_dir, debug_logger)
|
|
|
|
_ensure_yt_dlp_ready()
|
|
|
|
ytdl_options = _build_ytdlp_options(opts)
|
|
debug(f"Starting yt-dlp download: {opts.url}")
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("ytdlp-start", {"url": opts.url})
|
|
|
|
assert yt_dlp is not None
|
|
try:
|
|
# Debug: show what options we're using
|
|
if ytdl_options.get("download_sections"):
|
|
debug(f"[yt-dlp] download_sections: {ytdl_options['download_sections']}")
|
|
debug(f"[yt-dlp] force_keyframes_at_cuts: {ytdl_options.get('force_keyframes_at_cuts', False)}")
|
|
|
|
# Use subprocess when download_sections are present (Python API doesn't support them properly)
|
|
session_id = None
|
|
first_section_info = {}
|
|
if ytdl_options.get("download_sections"):
|
|
session_id, first_section_info = _download_with_sections_via_cli(opts.url, ytdl_options, ytdl_options.get("download_sections", []))
|
|
info = None
|
|
else:
|
|
with yt_dlp.YoutubeDL(ytdl_options) as ydl: # type: ignore[arg-type]
|
|
info = ydl.extract_info(opts.url, download=True)
|
|
except Exception as exc:
|
|
log(f"yt-dlp failed: {exc}", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"exception",
|
|
{
|
|
"phase": "yt-dlp",
|
|
"error": str(exc),
|
|
"traceback": traceback.format_exc(),
|
|
},
|
|
)
|
|
raise DownloadError("yt-dlp download failed") from exc
|
|
|
|
# If we used subprocess, we need to find the file manually
|
|
if info is None:
|
|
# Find files created/modified during this download (after we started)
|
|
# Look for files matching the expected output template pattern
|
|
try:
|
|
import glob
|
|
import time
|
|
import re
|
|
|
|
# Get the expected filename pattern from outtmpl
|
|
# For sections: "C:\path\{session_id}.section_1_of_3.ext", etc.
|
|
# For non-sections: "C:\path\title.ext"
|
|
|
|
# Wait a moment to ensure files are fully written
|
|
time.sleep(0.5)
|
|
|
|
# List all files in output_dir, sorted by modification time
|
|
files = sorted(opts.output_dir.iterdir(), key=lambda p: p.stat().st_mtime, reverse=True)
|
|
if not files:
|
|
raise FileNotFoundError(f"No files found in {opts.output_dir}")
|
|
|
|
# If we downloaded sections, look for files with the session_id pattern
|
|
if opts.clip_sections and session_id:
|
|
# Pattern: "{session_id}_1.ext", "{session_id}_2.ext", etc.
|
|
section_pattern = re.compile(rf'^{re.escape(session_id)}_(\d+)\.')
|
|
matching_files = [f for f in files if section_pattern.search(f.name)]
|
|
|
|
if matching_files:
|
|
# Sort by section number to ensure correct order
|
|
def extract_section_num(path: Path) -> int:
|
|
match = section_pattern.search(path.name)
|
|
return int(match.group(1)) if match else 999
|
|
|
|
matching_files.sort(key=extract_section_num)
|
|
debug(f"Found {len(matching_files)} section file(s) matching pattern")
|
|
|
|
# Now rename section files to use hash-based names
|
|
# This ensures unique filenames for each section content
|
|
renamed_files = []
|
|
|
|
for idx, section_file in enumerate(matching_files, 1):
|
|
try:
|
|
# Calculate hash for the file
|
|
file_hash = sha256_file(section_file)
|
|
ext = section_file.suffix
|
|
new_name = f"{file_hash}{ext}"
|
|
new_path = opts.output_dir / new_name
|
|
|
|
if new_path.exists() and new_path != section_file:
|
|
# If file with same hash exists, use it and delete the temp one
|
|
debug(f"File with hash {file_hash} already exists, using existing file.")
|
|
try:
|
|
section_file.unlink()
|
|
except OSError:
|
|
pass
|
|
renamed_files.append(new_path)
|
|
else:
|
|
section_file.rename(new_path)
|
|
debug(f"Renamed section file: {section_file.name} → {new_name}")
|
|
renamed_files.append(new_path)
|
|
except Exception as e:
|
|
debug(f"Failed to process section file {section_file.name}: {e}")
|
|
renamed_files.append(section_file)
|
|
|
|
media_path = renamed_files[0]
|
|
media_paths = renamed_files
|
|
debug(f"✓ Downloaded {len(media_paths)} section file(s) (session: {session_id})")
|
|
else:
|
|
# Fallback to most recent file if pattern not found
|
|
media_path = files[0]
|
|
media_paths = None
|
|
debug(f"✓ Downloaded section file (pattern not found): {media_path.name}")
|
|
else:
|
|
# No sections, just take the most recent file
|
|
media_path = files[0]
|
|
media_paths = None
|
|
|
|
debug(f"✓ Downloaded: {media_path.name}")
|
|
if debug_logger is not None:
|
|
debug_logger.write_record("ytdlp-file-found", {"path": str(media_path)})
|
|
except Exception as exc:
|
|
log(f"Error finding downloaded file: {exc}", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"exception",
|
|
{"phase": "find-file", "error": str(exc)},
|
|
)
|
|
raise DownloadError(str(exc)) from exc
|
|
|
|
# Create result with minimal data extracted from filename
|
|
file_hash = sha256_file(media_path)
|
|
|
|
# For section downloads, create tags with the title and build proper info dict
|
|
tags = []
|
|
title = ''
|
|
if first_section_info:
|
|
title = first_section_info.get('title', '')
|
|
if title:
|
|
tags.append(f'title:{title}')
|
|
debug(f"Added title tag for section download: {title}")
|
|
|
|
# Build info dict - always use extracted title if available, not hash
|
|
if first_section_info:
|
|
info_dict = first_section_info
|
|
else:
|
|
info_dict = {
|
|
"id": media_path.stem,
|
|
"title": title or media_path.stem,
|
|
"ext": media_path.suffix.lstrip(".")
|
|
}
|
|
|
|
return DownloadMediaResult(
|
|
path=media_path,
|
|
info=info_dict,
|
|
tags=tags,
|
|
source_url=opts.url,
|
|
hash_value=file_hash,
|
|
paths=media_paths, # Include all section files if present
|
|
)
|
|
|
|
if not isinstance(info, dict):
|
|
log(f"Unexpected yt-dlp response: {type(info)}", file=sys.stderr)
|
|
raise DownloadError("Unexpected yt-dlp response type")
|
|
|
|
info_dict: Dict[str, Any] = info
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"ytdlp-info",
|
|
{
|
|
"keys": sorted(info_dict.keys()),
|
|
"is_playlist": bool(info_dict.get("entries")),
|
|
},
|
|
)
|
|
|
|
try:
|
|
entry, media_path = _resolve_entry_and_path(info_dict, opts.output_dir)
|
|
except FileNotFoundError as exc:
|
|
log(f"Error: {exc}", file=sys.stderr)
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"exception",
|
|
{"phase": "resolve-path", "error": str(exc)},
|
|
)
|
|
raise DownloadError(str(exc)) from exc
|
|
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"resolved-media",
|
|
{"path": str(media_path), "entry_keys": sorted(entry.keys())},
|
|
)
|
|
|
|
# Extract hash from metadata or compute
|
|
hash_value = _extract_sha256(entry) or _extract_sha256(info_dict)
|
|
if not hash_value:
|
|
try:
|
|
hash_value = sha256_file(media_path)
|
|
except OSError as exc:
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"hash-error",
|
|
{"path": str(media_path), "error": str(exc)},
|
|
)
|
|
|
|
# Extract tags using metadata.py
|
|
tags = []
|
|
if extract_ytdlp_tags:
|
|
try:
|
|
tags = extract_ytdlp_tags(entry)
|
|
except Exception as e:
|
|
log(f"Error extracting tags: {e}", file=sys.stderr)
|
|
|
|
source_url = (
|
|
entry.get("webpage_url")
|
|
or entry.get("original_url")
|
|
or entry.get("url")
|
|
)
|
|
|
|
debug(f"✓ Downloaded: {media_path.name} ({len(tags)} tags)")
|
|
if debug_logger is not None:
|
|
debug_logger.write_record(
|
|
"downloaded",
|
|
{
|
|
"path": str(media_path),
|
|
"tag_count": len(tags),
|
|
"source_url": source_url,
|
|
"sha256": hash_value,
|
|
},
|
|
)
|
|
|
|
return DownloadMediaResult(
|
|
path=media_path,
|
|
info=entry,
|
|
tags=tags,
|
|
source_url=source_url,
|
|
hash_value=hash_value,
|
|
)
|
|
|
|
|
|
__all__ = [
|
|
"download_media",
|
|
"is_url_supported_by_ytdlp",
|
|
"DownloadError",
|
|
"DownloadOptions",
|
|
"DownloadMediaResult",
|
|
]
|