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482 lines
18 KiB
482 lines
18 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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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 = 5
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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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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):
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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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@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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# year
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if video.year == self.year:
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matches.add('year')
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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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else:
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# title
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matches.add('title')
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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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# rest is same for both groups
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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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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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self.login()
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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):
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r = self.retry(
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lambda: 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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validate_json=True,
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json_key_name='token'
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),
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amount=retry_amount
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)
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self.token = r.json()['token']
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region.set("oscom_token", self.token)
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return
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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: checked(
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lambda: self.session.get(self.server_url + 'features', params=parameters, timeout=30),
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validate_token=True,
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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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if results == 401:
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logging.debug('Authentification failed: clearing cache and attempting to login.')
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region.delete("oscom_token")
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self.login()
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results = self.retry(
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lambda: 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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lang_strings = [str(lang.basename) for lang in languages]
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only_foreign = all([lang.forced for lang in languages])
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also_foreign = any([lang.forced for lang in languages])
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if only_foreign:
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forced = 'only'
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elif also_foreign:
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forced = 'include'
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else:
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forced = 'exclude'
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langs = ','.join(lang_strings)
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logging.debug(f'Searching for this languages: {lang_strings}')
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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: checked(
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lambda: self.session.get(self.server_url + 'subtitles',
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params=(('episode_number', self.video.episode),
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('foreign_parts_only', forced),
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('imdb_id', imdb_id if not title_id else None),
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('languages', langs.lower()),
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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: checked(
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lambda: self.session.get(self.server_url + 'subtitles',
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params=(('foreign_parts_only', forced),
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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.lower()),
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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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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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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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if len(item['attributes']['files']):
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subtitle = OpenSubtitlesComSubtitle(
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language=Language.fromietf(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=item['attributes']['feature_details']['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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)
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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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if self.token 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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if self.token is NO_VALUE:
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logger.debug("Unable to obtain an authentication token right now, we'll try again later.")
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raise ProviderError("Unable to obtain an authentication token")
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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': 'Beaker ' + self.token}
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res = self.retry(
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lambda: 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: 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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def checked(fn, raise_api_limit=False, validate_token=False, validate_json=False, json_key_name=None,
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validate_content=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_token: test if token is valid and return 401 if not.
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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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: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(2)
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return 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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if validate_token:
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return 401
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else:
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raise AuthenticationError(f'Login failed: {response.reason}')
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elif status_code == 403:
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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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raise DownloadLimitExceeded("Daily download limit reached")
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elif status_code == 410:
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raise ProviderError("Download as expired")
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elif status_code == 429:
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raise TooManyRequests()
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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()
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elif 500 <= status_code <= 599:
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raise ProviderError(response.reason)
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if status_code != 200:
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raise ProviderError(f'Bad status code: {response.status_code}')
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if validate_json:
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try:
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json_test = response.json()
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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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if json_key_name not in json_test:
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raise ProviderError(f'Invalid JSON returned by provider: no {json_key_name} key in returned json.')
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if validate_content:
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if not hasattr(response, 'content'):
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logging.error('Download link returned no content attribute.')
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return False
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elif not response.content:
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logging.error(f'This download link returned empty content: {response.url}')
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return False
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return response
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