mirror of
https://github.com/lrnselfreliance/wrolpi.git
synced 2026-10-26 02:48:38 -04:00
03a2df217d
* A new zim module has been added, this module allows several things to interact with Zim files. * Allow searching of Zim files using libzim. * Allow downloading of Kiwix projects (wikipedia, wikibooks, etc) on a schedule which replaces the outdated files. * Creation of a new zim docker container which allows viewing of the Zim file contents. * This commit also adds move/rename/mkdir features in the File Browser. * File tags are preserved when moving/renaming.
613 lines
23 KiB
Python
613 lines
23 KiB
Python
import contextlib
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import functools
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import html
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import pathlib
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import re
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import warnings
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from typing import Tuple, Optional, Generator
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from sqlalchemy import or_
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from sqlalchemy.orm import Session
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from yt_dlp import YoutubeDL
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from wrolpi import before_startup, dates
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from wrolpi.captions import extract_captions
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from wrolpi.common import ConfigFile, get_media_directory, sanitize_link, register_refresh_cleanup, limit_concurrent
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from wrolpi.dates import Seconds
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from wrolpi.db import get_db_curs, get_db_session, optional_session
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from wrolpi.errors import UnknownDirectory
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from wrolpi.files.models import FileGroup
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from wrolpi.tags import Tag
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from wrolpi.vars import PYTEST
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from .common import is_valid_poster, convert_image, \
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generate_video_poster, logger, REQUIRED_OPTIONS, ConfigError, \
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get_no_channel_directory, get_video_duration
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from .models import Channel, Video
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logger = logger.getChild(__name__)
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DEFAULT_DOWNLOAD_FREQUENCY = Seconds.week
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class VideoInfoJSON(object):
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channel_source_id = None
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duration = None
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title = None
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url = None
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view_count = None
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def process_video_info_json(video: Video) -> VideoInfoJSON:
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"""
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Parse the Video's info json file, return the relevant data.
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"""
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video_info_json = VideoInfoJSON()
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if info_json := video.get_info_json():
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title = info_json.get('fulltitle') or info_json.get('title')
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video_info_json.title = html.unescape(title) if title else None
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video_info_json.duration = info_json.get('duration') or None
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video_info_json.view_count = info_json.get('view_count') or None
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video_info_json.url = info_json.get('webpage_url') or info_json.get('url') or None
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video_info_json.channel_source_id = info_json.get('channel_id') or None
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return video_info_json
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@optional_session
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@functools.lru_cache
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def get_channel_id_by_source_id(session: Session, source_id: str) -> Optional[int]:
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"""Return the id of the Channel which matches the provided `source_id`.
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These are cached results."""
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channel = session.query(Channel).filter_by(source_id=source_id).one_or_none()
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return channel.id if channel else None
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EXTRACT_SUBTITLES = False
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def validate_video(video: Video, channel_generate_poster: bool):
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"""
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Validate a single video.
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A Video is validated when we have attempted to find its: title, duration, view_count, url, caption, size, and
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channel.
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A Video is also valid when it has a JPEG poster, if any. If no poster can be
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found, it will be generated from the video file.
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"""
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info_json_path = video.info_json_path
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json_data_missing = bool(video.file_group.title) and bool(video.duration) and bool(video.view_count) \
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and bool(video.url)
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if info_json_path and json_data_missing is False:
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# These properties can be found in the info json.
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video_info_json = process_video_info_json(video)
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video.file_group.title = video_info_json.title
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video.duration = video_info_json.duration
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video.url = video_info_json.url
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# View count will probably be overwritten by more recent data when this Video's Channel is
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# updated.
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video.view_count = video.view_count or video_info_json.view_count
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if video_info_json.channel_source_id:
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video.channel_id = get_channel_id_by_source_id(source_id=video_info_json.channel_source_id)
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video_path = video.video_path
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if not video_path:
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logger.error(f'{video} does not have video_path!')
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if video_path and (not video.file_group.title or not video.upload_date or not video.source_id):
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# Video is missing things that can be extracted from the video file name.
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# These are the least trusted, so anything already on the video should be trusted.
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_, upload_date, source_id, title = parse_video_file_name(video_path)
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upload_date = upload_date or video.upload_date
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if upload_date and isinstance(upload_date, str):
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upload_date = dates.strpdate(upload_date)
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video.file_group.title = video.file_group.title or html.unescape(title)
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video.upload_date = upload_date
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video.source_id = video.source_id or source_id
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if channel_generate_poster:
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# Try to convert/generate, but keep the old poster if those fail.
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new_poster_path, duration = convert_or_generate_poster(video) or video.poster_path
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if new_poster_path:
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# Poster was created/updated.
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video.file_group.append_files(new_poster_path)
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if duration:
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video.duration = duration
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if video_path and not video.duration:
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# Duration was not retrieved during poster generation.
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video.duration = get_video_duration(video_path)
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if video_path and not video.caption_paths and video.file_group.d_text and not EXTRACT_SUBTITLES:
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# Caption file was deleted, clear out old captions.
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video.file_group.d_text = None
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elif video_path and not video.file_group.d_text and EXTRACT_SUBTITLES:
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# Captions were not found, extract them from the video.
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video.file_group.d_text = extract_captions(video_path)
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elif video_path and video.caption_paths and not video.file_group.d_text:
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video.file_group.d_text = video.get_caption_text()
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def convert_or_generate_poster(video: Video) -> Tuple[Optional[pathlib.Path], Optional[int]]:
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"""
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If a Video has a poster, but the poster is invalid, convert it. If a Video has no poster, generate one from the
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video file.
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Returns None if the poster was not converted, and not generated.
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"""
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video_path = video.video_path
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# Modification/generation of poster is enabled for this channel.
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if video.poster_path:
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# Check that the poster is a more universally supported JPEG.
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old: pathlib.Path = video.poster_path
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new = old.with_suffix('.jpg')
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if old != new and new.exists():
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# Destination JPEG already exists (it may have the wrong format).
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old.unlink()
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old = new
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if not is_valid_poster(old):
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# Poster is not valid, convert it and place it in the new location.
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try:
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convert_image(old, new)
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if not new.is_file():
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raise FileNotFoundError(f'Failed to convert poster: {new}')
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if old != new:
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# Only remove the old one if we are not converting in-place.
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old.unlink(missing_ok=True)
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logger.info(f'Converted invalid poster {repr(str(old))} to {repr(str(new))}')
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return new, None
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except Exception as e:
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logger.error(f'Failed to convert invalid poster {old} to {new}', exc_info=e)
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return None, None
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if not video.poster_path:
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# Video poster was not discovered, or converted. Let's generate it.
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try:
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poster_path, duration = generate_video_poster(video_path)
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logger.debug(f'Generated poster for {video}')
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return poster_path, duration
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except Exception as e:
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logger.error(f'Failed to generate poster for {video}', exc_info=e)
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return None, None
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class ChannelsConfig(ConfigFile):
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file_name = 'channels.yaml'
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default_config = dict(
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channels={
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'wrolpi': dict(
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name='WROLPi',
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url='https://www.youtube.com/channel/UC4t8bw1besFTyjW7ZBCOIrw/videos',
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directory='videos/wrolpi',
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download_frequency=604800,
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)
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},
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favorites=dict(),
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)
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@property
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def channels(self) -> dict:
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return self._config['channels']
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@channels.setter
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def channels(self, value: dict):
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self.update({'channels': value})
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@property
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def favorites(self) -> dict:
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warnings.warn('Favorites have bee moved to Tags', DeprecationWarning)
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return self._config['favorites']
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@favorites.setter
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def favorites(self, value: dict):
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warnings.warn('Favorites have bee moved to Tags', DeprecationWarning)
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self.update({'favorites': value})
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CHANNELS_CONFIG: ChannelsConfig = ChannelsConfig()
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TEST_CHANNELS_CONFIG: ChannelsConfig = None
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def get_channels_config() -> ChannelsConfig:
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global TEST_CHANNELS_CONFIG
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if isinstance(TEST_CHANNELS_CONFIG, ConfigFile):
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return TEST_CHANNELS_CONFIG
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global CHANNELS_CONFIG
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return CHANNELS_CONFIG
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@contextlib.contextmanager
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def set_test_channels_config():
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global TEST_CHANNELS_CONFIG
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TEST_CHANNELS_CONFIG = ChannelsConfig()
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yield
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TEST_CHANNELS_CONFIG = None
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class VideoDownloaderConfig(ConfigFile):
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file_name = 'videos_downloader.yaml'
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default_config = dict(
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continue_dl=True,
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dateafter='19900101',
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file_name_format='%(uploader)s_%(upload_date)s_%(id)s_%(title)s.%(ext)s',
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nooverwrites=True,
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quiet=False,
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writeautomaticsub=True,
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writeinfojson=True,
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writesubtitles=True,
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writethumbnail=True,
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youtube_include_dash_manifest=False,
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)
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@property
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def continue_dl(self) -> bool:
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return self._config['continue_dl']
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@continue_dl.setter
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def continue_dl(self, value: bool):
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self.update({'continue_dl': value})
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@property
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def dateafter(self) -> str:
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return self._config['dateafter']
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@dateafter.setter
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def dateafter(self, value: str):
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self.update({'dateafter': value})
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@property
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def file_name_format(self) -> str:
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return self._config['file_name_format']
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@file_name_format.setter
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def file_name_format(self, value: str):
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self.update({'file_name_format': value})
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@property
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def nooverwrites(self) -> bool:
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return self._config['nooverwrites']
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@nooverwrites.setter
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def nooverwrites(self, value: bool):
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self.update({'nooverwrites': value})
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@property
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def quiet(self) -> bool:
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return self._config['quiet']
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@quiet.setter
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def quiet(self, value: bool):
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self.update({'quiet': value})
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@property
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def writeautomaticsub(self) -> bool:
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return self._config['writeautomaticsub']
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@writeautomaticsub.setter
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def writeautomaticsub(self, value: bool):
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self.update({'writeautomaticsub': value})
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@property
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def writeinfojson(self) -> bool:
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return self._config['writeinfojson']
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@writeinfojson.setter
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def writeinfojson(self, value: bool):
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self.update({'writeinfojson': value})
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@property
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def writesubtitles(self) -> bool:
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return self._config['writesubtitles']
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@writesubtitles.setter
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def writesubtitles(self, value: bool):
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self.update({'writesubtitles': value})
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@property
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def writethumbnail(self) -> bool:
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return self._config['writethumbnail']
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@writethumbnail.setter
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def writethumbnail(self, value: bool):
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self.update({'writethumbnail': value})
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@property
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def youtube_include_dash_manifest(self) -> bool:
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return self._config['youtube_include_dash_manifest']
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@youtube_include_dash_manifest.setter
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def youtube_include_dash_manifest(self, value: bool):
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self.update({'youtube_include_dash_manifest': value})
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VIDEO_DOWNLOADER_CONFIG: VideoDownloaderConfig = VideoDownloaderConfig()
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TEST_VIDEO_DOWNLOADER_CONFIG: VideoDownloaderConfig = None
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def get_downloader_config() -> VideoDownloaderConfig:
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global TEST_VIDEO_DOWNLOADER_CONFIG
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if isinstance(TEST_VIDEO_DOWNLOADER_CONFIG, VideoDownloaderConfig):
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return TEST_VIDEO_DOWNLOADER_CONFIG
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global VIDEO_DOWNLOADER_CONFIG
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return VIDEO_DOWNLOADER_CONFIG
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def set_test_downloader_config(enabled: bool):
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global TEST_VIDEO_DOWNLOADER_CONFIG
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if enabled:
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TEST_VIDEO_DOWNLOADER_CONFIG = VideoDownloaderConfig()
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else:
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TEST_VIDEO_DOWNLOADER_CONFIG = None
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def get_channels_config_from_db(session: Session) -> dict:
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"""Create a dictionary that contains all the Channels from the DB."""
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channels = session.query(Channel).order_by(Channel.directory).all()
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channels = sorted((i.config_view() for i in channels), key=lambda i: i['directory'])
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return dict(channels=channels)
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@optional_session()
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def save_channels_config(session: Session = None):
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"""Get the Channel information from the DB, save it to the config."""
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config = get_channels_config_from_db(session)
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channels_config = get_channels_config()
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channels_config.update(config)
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channel_import_logger = logger.getChild('channel_import')
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@before_startup
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@register_refresh_cleanup
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@limit_concurrent(1)
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def import_channels_config():
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"""Import channel settings to the DB. Existing channels will be updated."""
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if PYTEST and not TEST_CHANNELS_CONFIG:
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channel_import_logger.warning(
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f'Not importing channels during this test. Use `test_channels_config` fixture if you would '
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f'like to call this.')
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return
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channel_import_logger.info('Importing videos config')
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try:
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config = get_channels_config()
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channels, favorites = config.channels, config.favorites
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save_config = False
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with get_db_session(commit=True) as session:
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for data in channels:
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if isinstance(data, str):
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# Outdated style config.
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# TODO remove this after beta.
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data = channels[data]
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# A Channel's directory is saved (in config) relative to the media directory.
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directory = get_media_directory() / data['directory']
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for option in (i for i in REQUIRED_OPTIONS if i not in data):
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raise ConfigError(f'Channel "{directory}" is required to have "{option}"')
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channel = session.query(Channel).filter(
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or_(
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Channel.directory == str(directory),
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Channel.directory == str(data['directory']),
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Channel.directory == str(directory.relative_to(get_media_directory())),
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),
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).one_or_none()
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if not channel:
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# Channel not yet in the DB, add it.
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channel = Channel(directory=directory)
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session.add(channel)
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# Only name and directory are required
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channel.name = data['name']
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channel.directory = directory
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# A URL should not be an empty string
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data['url'] = data['url'] or None
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# Copy existing channel data, update all values from the config. This is necessary to clear out
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# values not in the config.
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full_data = channel.dict()
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full_data.update(data)
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full_data['skip_download_videos'] = list(set(data.get('skip_download_videos', {})))
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channel.update(full_data)
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if not channel.source_id and channel.url:
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# If we can download from a channel, we must have its source_id.
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channel.source_id = get_channel_source_id(channel.url)
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save_config = True
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if not channel.source_id:
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channel_import_logger.warning(f'Unable to fetch source_id for {channel.url}')
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else:
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session.commit()
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channel_import_logger.debug(f'Updated {repr(channel.name)}'
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f' url={channel.url}'
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f' source_id={channel.source_id}'
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f' directory={channel.directory}'
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f' download_frequency={channel.download_frequency}'
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)
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if save_config:
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# Information about the channel was fetched, store it.
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save_channels_config()
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with get_db_session(commit=True) as session:
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channels_by_link = {sanitize_link(i.name): i for i in session.query(Channel)}
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for directory_, favorites in favorites.items():
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if directory_ != 'NO CHANNEL':
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# A Channel's directory is saved (in the config) relative to the media directory.
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directory = get_media_directory() / directory_
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channel: Channel = session.query(Channel).filter_by(directory=directory).one_or_none()
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if not channel:
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# Directory may be the outdated "link".
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# TODO remove these old favorites after beta.
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channel = channels_by_link.get(directory_)
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if not channel:
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channel_import_logger.warning(f'Cannot find channel {directory=} for favorites!')
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continue
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channel_dir = channel.directory
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else:
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channel_dir = get_no_channel_directory()
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favorites_tag = Tag.find_by_name('Favorite')
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if not favorites_tag:
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channel_import_logger.warning(f'Cannot tag favorite videos without Favorite tag!')
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return
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# Set favorite Videos of this Channel.
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for video_path, data in favorites.items():
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# Favorite in the config is the name of the video_path. Add the channel directory onto this
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# video_path, so we can match the complete path for the Video.
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video_path = channel_dir / video_path
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file_group: FileGroup = FileGroup.find_by_path(video_path, session)
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if file_group and file_group.tag_files:
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# Video is already tagged or favorited.
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pass
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elif file_group:
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file_group.add_tag(favorites_tag, session)
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else:
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channel_import_logger.warning(f'Cannot find video to favorite: {video_path}')
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except Exception as e:
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channel_import_logger.warning('Failed to load channels config!', exc_info=e)
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if PYTEST:
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# Do not interrupt startup, only raise during testing.
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raise
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YDL = YoutubeDL()
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YDL.params['logger'] = logger.getChild('youtube-dl')
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YDL.add_default_info_extractors()
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def get_channel_source_id(url: str) -> str:
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channel_info = YDL.extract_info(url, download=False, process=False)
|
|
return channel_info.get('uploader_id') or channel_info['channel_id']
|
|
|
|
|
|
async def get_statistics():
|
|
with get_db_curs() as curs:
|
|
curs.execute('''
|
|
SELECT
|
|
-- total videos
|
|
COUNT(v.id) AS "videos",
|
|
-- total videos downloaded over the past week/month/year
|
|
COUNT(v.id) FILTER (WHERE upload_date >= current_date - interval '1 week') AS "week",
|
|
COUNT(v.id) FILTER (WHERE upload_date >= current_date - interval '1 month') AS "month",
|
|
COUNT(v.id) FILTER (WHERE upload_date >= current_date - interval '1 year') AS "year",
|
|
-- sum of all video lengths in seconds
|
|
COALESCE(SUM(v.duration), 0) AS "sum_duration",
|
|
-- sum of all video file sizes
|
|
COALESCE(SUM(fg.size), 0)::BIGINT AS "sum_size",
|
|
-- largest video
|
|
COALESCE(MAX(fg.size), 0) AS "max_size"
|
|
FROM
|
|
video v
|
|
LEFT JOIN file_group fg on v.file_group_id = fg.id
|
|
''')
|
|
video_stats = dict(curs.fetchone())
|
|
|
|
# Get the total videos downloaded every month for the past two years.
|
|
curs.execute('''
|
|
SELECT
|
|
DATE_TRUNC('month', months.a),
|
|
COUNT(video.id)::BIGINT,
|
|
SUM(size)::BIGINT AS "size"
|
|
FROM
|
|
generate_series(
|
|
date_trunc('month', current_date) - interval '2 years',
|
|
date_trunc('month', current_date) - interval '1 month',
|
|
'1 month'::interval) AS months(a),
|
|
video
|
|
LEFT JOIN file_group fg on video.file_group_id = fg.id
|
|
WHERE
|
|
video.upload_date >= date_trunc('month', months.a)
|
|
AND video.upload_date < date_trunc('month', months.a) + interval '1 month'
|
|
AND video.upload_date IS NOT NULL
|
|
GROUP BY
|
|
1
|
|
ORDER BY
|
|
1
|
|
''')
|
|
monthly_videos = [dict(i) for i in curs.fetchall()]
|
|
|
|
historical_stats = dict(monthly_videos=monthly_videos)
|
|
historical_stats['average_count'] = (sum(i['count'] for i in monthly_videos) // len(monthly_videos)) \
|
|
if monthly_videos else 0
|
|
historical_stats['average_size'] = (sum(i['size'] for i in monthly_videos) // len(monthly_videos)) \
|
|
if monthly_videos else 0
|
|
|
|
curs.execute('''
|
|
SELECT
|
|
COUNT(id) AS "channels"
|
|
FROM
|
|
channel
|
|
''')
|
|
channel_stats = dict(curs.fetchone())
|
|
ret = dict(statistics=dict(
|
|
videos=video_stats,
|
|
channels=channel_stats,
|
|
historical=historical_stats,
|
|
))
|
|
return ret
|
|
|
|
|
|
NAME_PARSER = re.compile(r'(.*?)_((?:\d+?)|(?:NA))_(?:(.{5,15})_)?(.*)\.'
|
|
r'(jpg|webp|flv|mp4|part|info\.json|description|webm|..\.srt|..\.vtt)')
|
|
|
|
|
|
def parse_video_file_name(video_path: pathlib.Path) -> \
|
|
Tuple[Optional[str], Optional[str], Optional[str], Optional[str]]:
|
|
"""
|
|
A Video's file name can have data in it, this attempts to extract what may be there.
|
|
|
|
Example: {channel_name}_{upload_date}_{source_id}_title{ext}
|
|
"""
|
|
video_str = str(video_path)
|
|
if match := NAME_PARSER.match(video_str):
|
|
channel, date, source_id, title, _ = match.groups()
|
|
|
|
channel = None if channel == 'NA' else channel
|
|
date = None if date == 'NA' else date
|
|
|
|
title = title.strip()
|
|
if date == 'NA':
|
|
return channel, None, source_id, title
|
|
if date is None or (len(date) == 8 and date.isdigit()):
|
|
return channel, date, source_id, title
|
|
|
|
# Return the stem as a last resort
|
|
title = pathlib.Path(video_path).stem.strip()
|
|
return None, None, None, title
|
|
|
|
|
|
def find_orphaned_video_files(directory: pathlib.Path) -> Generator[pathlib.Path, None, None]:
|
|
"""Finds all files which should be associated with a video file, but a video file does not match their stem.
|
|
|
|
Example:
|
|
video1.mp4, video1.info.json # Video file with info json.
|
|
video2.info.json # Orphaned video json.
|
|
"""
|
|
with get_db_curs() as curs:
|
|
if not directory.is_dir():
|
|
raise UnknownDirectory()
|
|
|
|
directory = str(directory).rstrip('/')
|
|
|
|
curs.execute(f'''
|
|
SELECT files
|
|
FROM file_group
|
|
WHERE
|
|
mimetype NOT LIKE 'video%'
|
|
AND primary_path LIKE '{directory}/%'
|
|
''')
|
|
results = (pathlib.Path(j['path']) for i in curs.fetchall() for j in i[0])
|
|
yield from results
|