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bazarr/libs/subliminal/providers/legendastv.py
2018-04-23 08:36:17 -04:00

522 lines
20 KiB
Python

# -*- coding: utf-8 -*-
import io
import json
import logging
import os
import re
from babelfish import Language, language_converters
from datetime import datetime, timedelta
from dogpile.cache.api import NO_VALUE
from guessit import guessit
import pytz
import rarfile
from rarfile import RarFile, is_rarfile
from requests import Session
from zipfile import ZipFile, is_zipfile
from . import ParserBeautifulSoup, Provider
from .. import __short_version__
from ..cache import SHOW_EXPIRATION_TIME, region
from ..exceptions import AuthenticationError, ConfigurationError, ProviderError, ServiceUnavailable
from ..subtitle import SUBTITLE_EXTENSIONS, Subtitle, fix_line_ending, guess_matches, sanitize
from ..video import Episode, Movie
logger = logging.getLogger(__name__)
language_converters.register('legendastv = subliminal.converters.legendastv:LegendasTVConverter')
# Configure :mod:`rarfile` to use the same path separator as :mod:`zipfile`
rarfile.PATH_SEP = '/'
#: Conversion map for types
type_map = {'M': 'movie', 'S': 'episode', 'C': 'episode'}
#: BR title season parsing regex
season_re = re.compile(r' - (?P<season>\d+)(\xaa|a|st|nd|rd|th) (temporada|season)', re.IGNORECASE)
#: Downloads parsing regex
downloads_re = re.compile(r'(?P<downloads>\d+) downloads')
#: Rating parsing regex
rating_re = re.compile(r'nota (?P<rating>\d+)')
#: Timestamp parsing regex
timestamp_re = re.compile(r'(?P<day>\d+)/(?P<month>\d+)/(?P<year>\d+) - (?P<hour>\d+):(?P<minute>\d+)')
#: Title with year/country regex
title_re = re.compile(r'^(?P<series>.*?)(?: \((?:(?P<year>\d{4})|(?P<country>[A-Z]{2}))\))?$')
#: Cache key for releases
releases_key = __name__ + ':releases|{archive_id}|{archive_name}'
class LegendasTVArchive(object):
"""LegendasTV Archive.
:param str id: identifier.
:param str name: name.
:param bool pack: contains subtitles for multiple episodes.
:param bool pack: featured.
:param str link: link.
:param int downloads: download count.
:param int rating: rating (0-10).
:param timestamp: timestamp.
:type timestamp: datetime.datetime
"""
def __init__(self, id, name, pack, featured, link, downloads=0, rating=0, timestamp=None):
#: Identifier
self.id = id
#: Name
self.name = name
#: Pack
self.pack = pack
#: Featured
self.featured = featured
#: Link
self.link = link
#: Download count
self.downloads = downloads
#: Rating (0-10)
self.rating = rating
#: Timestamp
self.timestamp = timestamp
#: Compressed content as :class:`rarfile.RarFile` or :class:`zipfile.ZipFile`
self.content = None
def __repr__(self):
return '<%s [%s] %r>' % (self.__class__.__name__, self.id, self.name)
class LegendasTVSubtitle(Subtitle):
"""LegendasTV Subtitle."""
provider_name = 'legendastv'
def __init__(self, language, type, title, year, imdb_id, season, archive, name):
super(LegendasTVSubtitle, self).__init__(language, page_link=archive.link)
self.type = type
self.title = title
self.year = year
self.imdb_id = imdb_id
self.season = season
self.archive = archive
self.name = name
@property
def id(self):
return '%s-%s' % (self.archive.id, self.name.lower())
def get_matches(self, video, hearing_impaired=False):
matches = set()
# episode
if isinstance(video, Episode) and self.type == 'episode':
# series
if video.series and (sanitize(self.title) in (
sanitize(name) for name in [video.series] + video.alternative_series)):
matches.add('series')
# year
if video.original_series and self.year is None or video.year and video.year == self.year:
matches.add('year')
# imdb_id
if video.series_imdb_id and self.imdb_id == video.series_imdb_id:
matches.add('series_imdb_id')
# movie
elif isinstance(video, Movie) and self.type == 'movie':
# title
if video.title and (sanitize(self.title) in (
sanitize(name) for name in [video.title] + video.alternative_titles)):
matches.add('title')
# year
if video.year and self.year == video.year:
matches.add('year')
# imdb_id
if video.imdb_id and self.imdb_id == video.imdb_id:
matches.add('imdb_id')
# name
matches |= guess_matches(video, guessit(self.name, {'type': self.type}))
return matches
class LegendasTVProvider(Provider):
"""LegendasTV Provider.
:param str username: username.
:param str password: password.
"""
languages = {Language.fromlegendastv(l) for l in language_converters['legendastv'].codes}
server_url = 'http://legendas.tv/'
subtitle_class = LegendasTVSubtitle
def __init__(self, username=None, password=None):
# Provider needs UNRAR installed. If not available raise ConfigurationError
try:
rarfile.custom_check([rarfile.UNRAR_TOOL], True)
except rarfile.RarExecError:
raise ConfigurationError('UNRAR tool not available')
if any((username, password)) and not all((username, password)):
raise ConfigurationError('Username and password must be specified')
self.username = username
self.password = password
self.logged_in = False
self.session = None
def initialize(self):
self.session = Session()
self.session.headers['User-Agent'] = 'Subliminal/%s' % __short_version__
# login
if self.username and self.password:
logger.info('Logging in')
data = {'_method': 'POST', 'data[User][username]': self.username, 'data[User][password]': self.password}
r = self.session.post(self.server_url + 'login', data, allow_redirects=False, timeout=10)
raise_for_status(r)
soup = ParserBeautifulSoup(r.content, ['html.parser'])
if soup.find('div', {'class': 'alert-error'}, string=re.compile(u'Usuário ou senha inválidos')):
raise AuthenticationError(self.username)
logger.debug('Logged in')
self.logged_in = True
def terminate(self):
# logout
if self.logged_in:
logger.info('Logging out')
r = self.session.get(self.server_url + 'users/logout', allow_redirects=False, timeout=10)
raise_for_status(r)
logger.debug('Logged out')
self.logged_in = False
self.session.close()
@staticmethod
def is_valid_title(title, title_id, sanitized_title, season, year):
"""Check if is a valid title."""
sanitized_result = sanitize(title['title'])
if sanitized_result != sanitized_title:
logger.debug("Mismatched title, discarding title %d (%s)",
title_id, sanitized_result)
return
# episode type
if season:
# discard mismatches on type
if title['type'] != 'episode':
logger.debug("Mismatched 'episode' type, discarding title %d (%s)", title_id, sanitized_result)
return
# discard mismatches on season
if 'season' not in title or title['season'] != season:
logger.debug('Mismatched season %s, discarding title %d (%s)',
title.get('season'), title_id, sanitized_result)
return
# movie type
else:
# discard mismatches on type
if title['type'] != 'movie':
logger.debug("Mismatched 'movie' type, discarding title %d (%s)", title_id, sanitized_result)
return
# discard mismatches on year
if year is not None and 'year' in title and title['year'] != year:
logger.debug("Mismatched movie year, discarding title %d (%s)", title_id, sanitized_result)
return
return True
@region.cache_on_arguments(expiration_time=SHOW_EXPIRATION_TIME, should_cache_fn=lambda value: value)
def search_titles(self, title, season, title_year):
"""Search for titles matching the `title`.
For episodes, each season has it own title
:param str title: the title to search for.
:param int season: season of the title
:param int title_year: year of the title
:return: found titles.
:rtype: dict
"""
titles = {}
sanitized_titles = [sanitize(title)]
ignore_characters = {'\'', '.'}
if any(c in title for c in ignore_characters):
sanitized_titles.append(sanitize(title, ignore_characters=ignore_characters))
for sanitized_title in sanitized_titles:
# make the query
if season:
logger.info('Searching episode title %r for season %r', sanitized_title, season)
else:
logger.info('Searching movie title %r', sanitized_title)
r = self.session.get(self.server_url + 'legenda/sugestao/{}'.format(sanitized_title), timeout=10)
raise_for_status(r)
results = json.loads(r.text)
# loop over results
for result in results:
source = result['_source']
# extract id
title_id = int(source['id_filme'])
# extract type
title = {'type': type_map[source['tipo']]}
# extract title, year and country
name, year, country = title_re.match(source['dsc_nome']).groups()
title['title'] = name
# extract imdb_id
if source['id_imdb'] != '0':
if not source['id_imdb'].startswith('tt'):
title['imdb_id'] = 'tt' + source['id_imdb'].zfill(7)
else:
title['imdb_id'] = source['id_imdb']
# extract season
if title['type'] == 'episode':
if source['temporada'] and source['temporada'].isdigit():
title['season'] = int(source['temporada'])
else:
match = season_re.search(source['dsc_nome_br'])
if match:
title['season'] = int(match.group('season'))
else:
logger.debug('No season detected for title %d (%s)', title_id, name)
# extract year
if year:
title['year'] = int(year)
elif source['dsc_data_lancamento'] and source['dsc_data_lancamento'].isdigit():
# year is based on season air date hence the adjustment
title['year'] = int(source['dsc_data_lancamento']) - title.get('season', 1) + 1
# add title only if is valid
# Check against title without ignored chars
if self.is_valid_title(title, title_id, sanitized_titles[0], season, title_year):
titles[title_id] = title
logger.debug('Found %d titles', len(titles))
return titles
@region.cache_on_arguments(expiration_time=timedelta(minutes=15).total_seconds())
def get_archives(self, title_id, language_code, title_type, season, episode):
"""Get the archive list from a given `title_id`, `language_code`, `title_type`, `season` and `episode`.
:param int title_id: title id.
:param int language_code: language code.
:param str title_type: episode or movie
:param int season: season
:param int episode: episode
:return: the archives.
:rtype: list of :class:`LegendasTVArchive`
"""
archives = []
page = 0
while True:
# get the archive page
url = self.server_url + 'legenda/busca/-/{language}/-/{page}/{title}'.format(
language=language_code, page=page, title=title_id)
r = self.session.get(url)
raise_for_status(r)
# parse the results
soup = ParserBeautifulSoup(r.content, ['lxml', 'html.parser'])
for archive_soup in soup.select('div.list_element > article > div > div.f_left'):
# create archive
archive = LegendasTVArchive(archive_soup.a['href'].split('/')[2],
archive_soup.a.text,
'pack' in archive_soup.parent['class'],
'destaque' in archive_soup.parent['class'],
self.server_url + archive_soup.a['href'][1:])
# clean name of path separators and pack flags
clean_name = archive.name.replace('/', '-')
if archive.pack and clean_name.startswith('(p)'):
clean_name = clean_name[3:]
# guess from name
guess = guessit(clean_name, {'type': title_type})
# episode
if season and episode:
# discard mismatches on episode in non-pack archives
# Guessit may return int for single episode or list for multi-episode
# Check if archive name has multiple episodes releases on it
if not archive.pack and 'episode' in guess:
wanted_episode = set(episode) if isinstance(episode, list) else {episode}
archive_episode = guess['episode'] if isinstance(guess['episode'], list) else {guess['episode']}
if not wanted_episode.intersection(archive_episode):
logger.debug('Mismatched episode %s, discarding archive: %s', guess['episode'], clean_name)
continue
# extract text containing downloads, rating and timestamp
data_text = archive_soup.find('p', class_='data').text
# match downloads
archive.downloads = int(downloads_re.search(data_text).group('downloads'))
# match rating
match = rating_re.search(data_text)
if match:
archive.rating = int(match.group('rating'))
# match timestamp and validate it
time_data = {k: int(v) for k, v in timestamp_re.search(data_text).groupdict().items()}
archive.timestamp = pytz.timezone('America/Sao_Paulo').localize(datetime(**time_data))
if archive.timestamp > datetime.utcnow().replace(tzinfo=pytz.utc):
raise ProviderError('Archive timestamp is in the future')
# add archive
logger.info('Found archive for title %d and language %d at page %s: %s',
title_id, language_code, page, archive)
archives.append(archive)
# stop on last page
if soup.find('a', attrs={'class': 'load_more'}, string='carregar mais') is None:
break
# increment page count
page += 1
logger.debug('Found %d archives', len(archives))
return archives
def download_archive(self, archive):
"""Download an archive's :attr:`~LegendasTVArchive.content`.
:param archive: the archive to download :attr:`~LegendasTVArchive.content` of.
:type archive: :class:`LegendasTVArchive`
"""
logger.info('Downloading archive %s', archive.id)
r = self.session.get(self.server_url + 'downloadarquivo/{}'.format(archive.id))
raise_for_status(r)
# open the archive
archive_stream = io.BytesIO(r.content)
if is_rarfile(archive_stream):
logger.debug('Identified rar archive')
archive.content = RarFile(archive_stream)
elif is_zipfile(archive_stream):
logger.debug('Identified zip archive')
archive.content = ZipFile(archive_stream)
else:
raise ValueError('Not a valid archive')
def query(self, language, title, season=None, episode=None, year=None):
# search for titles
titles = self.search_titles(title, season, year)
subtitles = []
# iterate over titles
for title_id, t in titles.items():
logger.info('Getting archives for title %d and language %d', title_id, language.legendastv)
archives = self.get_archives(title_id, language.legendastv, t['type'], season, episode)
if not archives:
logger.info('No archives found for title %d and language %d', title_id, language.legendastv)
# iterate over title's archives
for a in archives:
# compute an expiration time based on the archive timestamp
expiration_time = (datetime.utcnow().replace(tzinfo=pytz.utc) - a.timestamp).total_seconds()
# attempt to get the releases from the cache
cache_key = releases_key.format(archive_id=a.id, archive_name=a.name)
releases = region.get(cache_key, expiration_time=expiration_time)
# the releases are not in cache or cache is expired
if releases == NO_VALUE:
logger.info('Releases not found in cache')
# download archive
self.download_archive(a)
# extract the releases
releases = []
for name in a.content.namelist():
# discard the legendastv file
if name.startswith('Legendas.tv'):
continue
# discard hidden files
if os.path.split(name)[-1].startswith('.'):
continue
# discard non-subtitle files
if not name.lower().endswith(SUBTITLE_EXTENSIONS):
continue
releases.append(name)
# cache the releases
region.set(cache_key, releases)
# iterate over releases
for r in releases:
subtitle = self.subtitle_class(language, t['type'], t['title'], t.get('year'), t.get('imdb_id'),
t.get('season'), a, r)
logger.debug('Found subtitle %r', subtitle)
subtitles.append(subtitle)
return subtitles
def list_subtitles(self, video, languages):
season = episode = None
if isinstance(video, Episode):
titles = [video.series] + video.alternative_series
season = video.season
episode = video.episode
else:
titles = [video.title] + video.alternative_titles
for title in titles:
subtitles = [s for l in languages for s in
self.query(l, title, season=season, episode=episode, year=video.year)]
if subtitles:
return subtitles
return []
def download_subtitle(self, subtitle):
# download archive in case we previously hit the releases cache and didn't download it
if subtitle.archive.content is None:
self.download_archive(subtitle.archive)
# extract subtitle's content
subtitle.content = fix_line_ending(subtitle.archive.content.read(subtitle.name))
def raise_for_status(r):
# When site is under maintaince and http status code 200.
if 'Em breve estaremos de volta' in r.text:
raise ServiceUnavailable
else:
r.raise_for_status()