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557 lines
22 KiB
557 lines
22 KiB
# -*- coding: utf-8 -*-
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import logging
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import os
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import time
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import datetime
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import json
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from requests import Session, ConnectionError, Timeout, ReadTimeout, RequestException
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from requests.exceptions import JSONDecodeError
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from subzero.language import Language
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from babelfish import language_converters
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from subliminal import Episode, Movie
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from subliminal.score import get_equivalent_release_groups
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from subliminal.utils import sanitize_release_group, sanitize
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from subliminal_patch.exceptions import TooManyRequests, APIThrottled
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from subliminal.exceptions import DownloadLimitExceeded, AuthenticationError, ConfigurationError, ServiceUnavailable, \
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ProviderError
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from .mixins import ProviderRetryMixin
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from subliminal_patch.subtitle import Subtitle
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from subliminal.subtitle import fix_line_ending, SUBTITLE_EXTENSIONS
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from subliminal_patch.providers import Provider
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from subliminal_patch.subtitle import guess_matches
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from subliminal_patch.utils import fix_inconsistent_naming
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from subliminal.cache import region
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from dogpile.cache.api import NO_VALUE
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from guessit import guessit
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logger = logging.getLogger(__name__)
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SHOW_EXPIRATION_TIME = datetime.timedelta(weeks=1).total_seconds()
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TOKEN_EXPIRATION_TIME = datetime.timedelta(hours=12).total_seconds()
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retry_amount = 3
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def fix_tv_naming(title):
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"""Fix TV show titles with inconsistent naming using dictionary, but do not sanitize them.
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:param str title: original title.
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:return: new title.
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:rtype: str
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"""
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return fix_inconsistent_naming(title, {"Superman & Lois": "Superman and Lois",
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}, True)
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def fix_movie_naming(title):
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return fix_inconsistent_naming(title, {
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}, True)
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custom_languages = {
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'pt': 'pt-PT',
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'zh': 'zh-CN',
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}
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def to_opensubtitlescom(lang):
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if lang in custom_languages.keys():
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return custom_languages[lang]
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else:
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return lang
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def from_opensubtitlescom(lang):
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from_custom_languages = {v: k for k, v in custom_languages.items()}
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if lang in from_custom_languages.keys():
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return from_custom_languages[lang]
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else:
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return lang
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class OpenSubtitlesComSubtitle(Subtitle):
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provider_name = 'opensubtitlescom'
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hash_verifiable = False
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def __init__(self, language, forced, hearing_impaired, page_link, file_id, releases, uploader, title, year,
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hash_matched, file_hash=None, season=None, episode=None, imdb_match=False):
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super().__init__(language, hearing_impaired, page_link)
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language = Language.rebuild(language, hi=hearing_impaired, forced=forced)
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self.title = title
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self.year = year
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self.season = season
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self.episode = episode
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self.releases = releases
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self.release_info = releases
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self.language = language
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self.hearing_impaired = hearing_impaired
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self.forced = forced
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self.file_id = file_id
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self.page_link = page_link
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self.download_link = None
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self.uploader = uploader
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self.matches = None
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self.hash = file_hash
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self.encoding = 'utf-8'
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self.hash_matched = hash_matched
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self.imdb_match = imdb_match
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@property
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def id(self):
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return self.file_id
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def get_matches(self, video):
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matches = set()
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type_ = "movie" if isinstance(video, Movie) else "episode"
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# handle movies and series separately
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if type_ == "episode":
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# series
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matches.add('series')
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# season
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if video.season == self.season:
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matches.add('season')
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# episode
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if video.episode == self.episode:
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matches.add('episode')
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# imdb
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if self.imdb_match:
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matches.add('series_imdb_id')
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else:
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# title
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matches.add('title')
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# imdb
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if self.imdb_match:
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matches.add('imdb_id')
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# rest is same for both groups
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# year
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if video.year == self.year:
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matches.add('year')
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# release_group
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if (video.release_group and self.releases and
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any(r in sanitize_release_group(self.releases)
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for r in get_equivalent_release_groups(sanitize_release_group(video.release_group)))):
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matches.add('release_group')
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if self.hash_matched:
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matches.add('hash')
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# other properties
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matches |= guess_matches(video, guessit(self.releases, {"type": type_}))
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self.matches = matches
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return matches
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class OpenSubtitlesComProvider(ProviderRetryMixin, Provider):
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"""OpenSubtitlesCom Provider"""
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server_url = 'https://api.opensubtitles.com/api/v1/'
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languages = {Language.fromopensubtitles(lang) for lang in language_converters['szopensubtitles'].codes}
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languages.update(set(Language.rebuild(lang, forced=True) for lang in languages))
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languages.update(set(Language.rebuild(l, hi=True) for l in languages))
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video_types = (Episode, Movie)
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def __init__(self, username=None, password=None, use_hash=True, api_key=None):
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if not all((username, password)):
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raise ConfigurationError('Username and password must be specified')
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if not api_key:
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raise ConfigurationError('Api_key must be specified')
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if not all((username, password)):
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raise ConfigurationError('Username and password must be specified')
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self.session = Session()
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self.session.headers = {'User-Agent': os.environ.get("SZ_USER_AGENT", "Sub-Zero/2"),
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'Api-Key': api_key,
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'Content-Type': 'application/json'}
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self.token = None
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self.username = username
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self.password = password
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self.video = None
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self.use_hash = use_hash
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self._started = None
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def initialize(self):
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self._started = time.time()
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if region.get("oscom_token", expiration_time=TOKEN_EXPIRATION_TIME) is NO_VALUE:
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logger.debug("No cached token, we'll try to login again.")
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self.login()
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else:
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self.token = region.get("oscom_token", expiration_time=TOKEN_EXPIRATION_TIME)
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def terminate(self):
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self.session.close()
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def ping(self):
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return self._started and (time.time() - self._started) < TOKEN_EXPIRATION_TIME
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def login(self, is_retry=False):
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r = self.checked(
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lambda: self.session.post(self.server_url + 'login',
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json={"username": self.username, "password": self.password},
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allow_redirects=False,
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timeout=30),
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is_retry=is_retry)
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try:
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self.token = r.json()['token']
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except (ValueError, JSONDecodeError):
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log_request_response(r)
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raise ProviderError("Cannot get token from provider login response")
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else:
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region.set("oscom_token", self.token)
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@staticmethod
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def sanitize_external_ids(external_id):
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if isinstance(external_id, str):
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external_id = external_id.lower().lstrip('tt').lstrip('0')
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sanitized_id = external_id[:-1].lstrip('0') + external_id[-1]
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return int(sanitized_id)
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@region.cache_on_arguments(expiration_time=SHOW_EXPIRATION_TIME)
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def search_titles(self, title):
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title_id = None
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parameters = {'query': title.lower()}
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logging.debug(f'Searching using this title: {title}')
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results = self.retry(
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lambda: self.checked(
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lambda: self.session.get(self.server_url + 'features', params=parameters, timeout=30),
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validate_json=True,
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json_key_name='data'
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),
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amount=retry_amount
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)
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# deserialize results
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results_dict = results.json()['data']
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# loop over results
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for result in results_dict:
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if 'title' in result['attributes']:
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if isinstance(self.video, Episode):
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if fix_tv_naming(title).lower() == result['attributes']['title'].lower() and \
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(not self.video.year or self.video.year == int(result['attributes']['year'])):
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title_id = result['id']
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break
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else:
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if fix_movie_naming(title).lower() == result['attributes']['title'].lower() and \
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(not self.video.year or self.video.year == int(result['attributes']['year'])):
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title_id = result['id']
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break
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else:
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continue
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if title_id:
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logging.debug(f'Found this title ID: {title_id}')
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return self.sanitize_external_ids(title_id)
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if not title_id:
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logger.debug(f'No match found for {title}')
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def query(self, languages, video):
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self.video = video
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if self.use_hash:
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file_hash = self.video.hashes.get('opensubtitlescom')
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logging.debug(f'Searching using this hash: {hash}')
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else:
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file_hash = None
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if isinstance(self.video, Episode):
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title = self.video.series
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else:
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title = self.video.title
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imdb_id = None
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if isinstance(self.video, Episode) and self.video.series_imdb_id:
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imdb_id = self.sanitize_external_ids(self.video.series_imdb_id)
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elif isinstance(self.video, Movie) and self.video.imdb_id:
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imdb_id = self.sanitize_external_ids(self.video.imdb_id)
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title_id = None
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if not imdb_id:
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title_id = self.search_titles(title)
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if not title_id:
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return []
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# be sure to remove duplicates using list(set())
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langs_list = sorted(list(set([to_opensubtitlescom(lang.basename).lower() for lang in languages])))
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langs = ','.join(langs_list)
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logging.debug(f'Searching for those languages: {langs}')
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# query the server
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if isinstance(self.video, Episode):
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res = self.retry(
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lambda: self.checked(
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lambda: self.session.get(self.server_url + 'subtitles',
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params=(('ai_translated', 'exclude'),
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('episode_number', self.video.episode),
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('imdb_id', imdb_id if not title_id else None),
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('languages', langs),
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('moviehash', file_hash),
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('parent_feature_id', title_id if title_id else None),
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('season_number', self.video.season)),
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timeout=30),
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validate_json=True,
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json_key_name='data'
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),
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amount=retry_amount
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)
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else:
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res = self.retry(
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lambda: self.checked(
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lambda: self.session.get(self.server_url + 'subtitles',
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params=(('ai_translated', 'exclude'),
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('id', title_id if title_id else None),
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('imdb_id', imdb_id if not title_id else None),
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('languages', langs),
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('moviehash', file_hash)),
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timeout=30),
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validate_json=True,
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json_key_name='data'
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),
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amount=retry_amount
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)
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subtitles = []
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result = res.json()
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# filter out forced subtitles or not depending on the required languages
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if all([lang.forced for lang in languages]): # only forced
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result['data'] = [x for x in result['data'] if x['attributes']['foreign_parts_only']]
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elif any([lang.forced for lang in languages]): # also forced
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pass
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else: # not forced
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result['data'] = [x for x in result['data'] if not x['attributes']['foreign_parts_only']]
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logging.debug(f"Query returned {len(result['data'])} subtitles")
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if len(result['data']):
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for item in result['data']:
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# ignore AI translated subtitles
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if 'ai_translated' in item['attributes'] and item['attributes']['ai_translated']:
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logging.debug("Skipping AI translated subtitles")
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continue
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# ignore machine translated subtitles
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if 'machine_translated' in item['attributes'] and item['attributes']['machine_translated']:
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logging.debug("Skipping machine translated subtitles")
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continue
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if 'season_number' in item['attributes']['feature_details']:
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season_number = item['attributes']['feature_details']['season_number']
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else:
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season_number = None
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if 'episode_number' in item['attributes']['feature_details']:
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episode_number = item['attributes']['feature_details']['episode_number']
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else:
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episode_number = None
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if 'moviehash_match' in item['attributes']:
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moviehash_match = item['attributes']['moviehash_match']
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else:
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moviehash_match = False
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try:
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year = int(item['attributes']['feature_details']['year'])
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except TypeError:
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year = item['attributes']['feature_details']['year']
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if len(item['attributes']['files']):
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subtitle = OpenSubtitlesComSubtitle(
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language=Language.fromietf(from_opensubtitlescom(item['attributes']['language'])),
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forced=item['attributes']['foreign_parts_only'],
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hearing_impaired=item['attributes']['hearing_impaired'],
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page_link=item['attributes']['url'],
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file_id=item['attributes']['files'][0]['file_id'],
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releases=item['attributes']['release'],
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uploader=item['attributes']['uploader']['name'],
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title=item['attributes']['feature_details']['movie_name'],
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year=year,
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season=season_number,
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episode=episode_number,
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hash_matched=moviehash_match,
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imdb_match=True if imdb_id else False
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)
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subtitle.get_matches(self.video)
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subtitles.append(subtitle)
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return subtitles
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def list_subtitles(self, video, languages):
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return self.query(languages, video)
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def download_subtitle(self, subtitle):
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logger.info('Downloading subtitle %r', subtitle)
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headers = {'Accept': 'application/json', 'Content-Type': 'application/json',
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'Authorization': 'Bearer ' + self.token}
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res = self.retry(
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lambda: self.checked(
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lambda: self.session.post(self.server_url + 'download',
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json={'file_id': subtitle.file_id, 'sub_format': 'srt'},
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headers=headers,
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timeout=30),
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validate_json=True,
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json_key_name='link'
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),
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amount=retry_amount
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)
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download_data = res.json()
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subtitle.download_link = download_data['link']
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r = self.retry(
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lambda: self.checked(
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lambda: self.session.get(subtitle.download_link, timeout=30),
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validate_content=True
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),
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amount=retry_amount
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)
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if not r:
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logger.debug(f'Could not download subtitle from {subtitle.download_link}')
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subtitle.content = None
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return
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else:
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subtitle_content = r.content
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subtitle.content = fix_line_ending(subtitle_content)
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@staticmethod
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def reset_token():
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logging.debug('Authentication failed: clearing cache and attempting to login.')
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region.delete("oscom_token")
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return
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def checked(self, fn, raise_api_limit=False, validate_json=False, json_key_name=None, validate_content=False,
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is_retry=False):
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"""Run :fn: and check the response status before returning it.
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:param fn: the function to make an API call to OpenSubtitles.com.
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:param raise_api_limit: if True we wait a little bit longer before running the call again.
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:param validate_json: test if response is valid json.
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:param json_key_name: test if returned json contain a specific key.
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:param validate_content: test if response have a content (used with download).
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:param is_retry: prevent additional retries with login endpoint.
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:return: the response.
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"""
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response = None
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try:
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try:
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response = fn()
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except APIThrottled:
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if not raise_api_limit:
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logger.info("API request limit hit, waiting and trying again once.")
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time.sleep(15)
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return self.checked(fn, raise_api_limit=True)
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raise
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except (ConnectionError, Timeout, ReadTimeout):
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raise ServiceUnavailable(f'Unknown Error, empty response: {response.status_code}: {response}')
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except Exception:
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logging.exception('Unhandled exception raised.')
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raise ProviderError('Unhandled exception raised. Check log.')
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else:
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status_code = response.status_code
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except Exception:
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status_code = None
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else:
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if status_code == 401:
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log_request_response(response)
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self.reset_token()
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if is_retry:
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raise AuthenticationError('Login failed')
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else:
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time.sleep(1)
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self.login(is_retry=True)
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self.checked(fn, raise_api_limit=raise_api_limit, validate_json=validate_json,
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json_key_name=json_key_name, validate_content=validate_content, is_retry=True)
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elif status_code == 403:
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log_request_response(response)
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raise ProviderError("Bazarr API key seems to be in problem")
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elif status_code == 406:
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try:
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json_response = response.json()
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download_count = json_response['requests']
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remaining_download = json_response['remaining']
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quota_reset_time = json_response['reset_time']
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except JSONDecodeError:
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raise ProviderError('Invalid JSON returned by provider')
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else:
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log_request_response(response)
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raise DownloadLimitExceeded(f"Daily download limit reached. {download_count} subtitles have been "
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f"downloaded and {remaining_download} remaining subtitles can be "
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f"downloaded. Quota will be reset in {quota_reset_time}.")
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elif status_code == 410:
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log_request_response(response)
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raise ProviderError("Download as expired")
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elif status_code == 429:
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log_request_response(response)
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raise TooManyRequests()
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elif status_code == 500:
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logging.debug("Server side exception raised while downloading from opensubtitles.com website. They "
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"should mitigate this soon.")
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return None
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elif status_code == 502:
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# this one should deal with Bad Gateway issue on their side.
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|
raise APIThrottled()
|
|
elif 500 <= status_code <= 599:
|
|
raise ProviderError(response.reason)
|
|
|
|
if status_code != 200:
|
|
log_request_response(response)
|
|
raise ProviderError(f'Bad status code: {response.status_code}')
|
|
|
|
if validate_json:
|
|
try:
|
|
json_test = response.json()
|
|
except JSONDecodeError:
|
|
raise ProviderError('Invalid JSON returned by provider')
|
|
else:
|
|
if json_key_name not in json_test:
|
|
raise ProviderError(f'Invalid JSON returned by provider: no {json_key_name} key in returned json.')
|
|
|
|
if validate_content:
|
|
if not hasattr(response, 'content'):
|
|
logging.error('Download link returned no content attribute.')
|
|
return False
|
|
elif not response.content:
|
|
logging.error(f'This download link returned empty content: {response.url}')
|
|
return False
|
|
|
|
return response
|
|
|
|
|
|
def log_request_response(response):
|
|
redacted_request_headers = response.request.headers
|
|
if 'Authorization' in redacted_request_headers:
|
|
redacted_request_headers['Authorization'] = 'redacted'
|
|
|
|
redacted_request_body = json.loads(response.request.body)
|
|
if 'password' in redacted_request_body:
|
|
redacted_request_body['password'] = 'redacted'
|
|
|
|
logging.debug("opensubtitlescom returned a non standard response. Logging request/response for debugging purpose.")
|
|
logging.debug(f"Request URL: {response.request.url}")
|
|
logging.debug(f"Request Headers: {redacted_request_headers}")
|
|
logging.debug(f"Request Body: {json.dumps(redacted_request_body)}")
|
|
logging.debug(f"Response Status Code: {response.status_code}")
|
|
logging.debug(f"Response Headers: {response.headers}")
|
|
logging.debug(f"Response Body: {response.text}")
|