bazarr/libs/subliminal_patch/providers/subdivx.py

# -*- coding: utf-8 -*-
from __future__ import absolute_import
import io
import logging
import os
import time
import zipfile

import rarfile
from subzero.language import Language
from requests import Session

from subliminal import __short_version__
from subliminal.exceptions import ServiceUnavailable
from subliminal.providers import ParserBeautifulSoup
from subliminal.subtitle import SUBTITLE_EXTENSIONS, fix_line_ending,guess_matches
from subliminal.video import Episode, Movie
from subliminal_patch.exceptions import APIThrottled
from six.moves import range
from subliminal_patch.score import get_scores
from subliminal_patch.subtitle import Subtitle
from subliminal_patch.providers import Provider
from guessit import guessit

logger = logging.getLogger(__name__)


class SubdivxSubtitle(Subtitle):
    provider_name = 'subdivx'
    hash_verifiable = False

    def __init__(self, language, video, page_link, title, description, uploader):
        super(SubdivxSubtitle, self).__init__(language, hearing_impaired=False, page_link=page_link)
        self.video = video
        self.title = title
        self.description = description
        self.uploader = uploader
        self.release_info = self.title
        if self.description and self.description.strip():
            self.release_info += ' | ' + self.description

    @property
    def id(self):
        return self.page_link

    def get_matches(self, video):
        matches = set()

        # episode
        if isinstance(video, Episode):
            # already matched in search query
            matches.update(['title', 'series', 'season', 'episode', 'year'])

        # movie
        elif isinstance(video, Movie):
            # already matched in search query
            matches.update(['title', 'year'])

        # release_group
        if video.release_group and video.release_group.lower() in self.description:
            matches.add('release_group')

        # resolution
        if video.resolution and video.resolution.lower() in self.description:
            matches.add('resolution')

        # source
        if video.source:
            formats = [video.source.lower()]
            if formats[0] == "web":
                formats.append("webdl")
                formats.append("web-dl")
                formats.append("webrip")
                formats.append("web ")
            for frmt in formats:
                if frmt in self.description:
                    matches.add('source')
                    break

        # video_codec
        if video.video_codec:
            video_codecs = [video.video_codec.lower()]
            if video_codecs[0] == "h.264":
                video_codecs.append("h264")
                video_codecs.append("x264")
            elif video_codecs[0] == "h.265":
                video_codecs.append("h265")
                video_codecs.append("x265")
            elif video_codecs[0] == "divx":
                video_codecs.append("divx")
            for vc in video_codecs:
                if vc in self.description:
                    matches.add('video_codec')
                    break

        return matches


class SubdivxSubtitlesProvider(Provider):
    provider_name = 'subdivx'
    hash_verifiable = False
    languages = {Language.fromalpha2(lang) for lang in ['es']}
    subtitle_class = SubdivxSubtitle

    server_url = 'https://www.subdivx.com/'
    multi_result_throttle = 2
    language_list = list(languages)

    def __init__(self):
        self.session = None

    def initialize(self):
        self.session = Session()
        self.session.headers['User-Agent'] = 'Subliminal/{}'.format(__short_version__)

    def terminate(self):
        self.session.close()

    def query(self, video, languages):
        if isinstance(video, Episode):
            query = "{} S{:02d}E{:02d}".format(video.series, video.season, video.episode)
        else:
            # Subdvix has problems searching foreign movies if the year is
            # appended. For example: if we search "Memories of Murder 2003",
            # Subdix won't return any results; but if we search "Memories of
            # Murder", it will. That's because in Subdvix foreign titles have
            # the year after the original title ("Salinui chueok (2003) aka
            # Memories of Murder").
            # A proper solution would be filtering results with the year in
            # _parse_subtitles_page.
            query = video.title

        params = {
            'q': query,  # search string
            'accion': 5,  # action search
            'oxdown': 1,  # order by downloads descending
            'pg': 1  # page 1
        }

        logger.debug('Searching subtitles %r', query)
        subtitles = []
        language = self.language_list[0]
        search_link = self.server_url + 'index.php'
        while True:
            response = self.session.get(search_link, params=params, timeout=20)
            self._check_response(response)

            try:
                page_subtitles = self._parse_subtitles_page(video, response, language)
            except Exception as e:
                logger.error('Error parsing subtitles list: ' + str(e))
                break

            subtitles += page_subtitles

            if len(page_subtitles) < 100:
                break  # this is the last page

            params['pg'] += 1  # search next page
            time.sleep(self.multi_result_throttle)

        return subtitles

    def list_subtitles(self, video, languages):
        return self.query(video, languages)

    def download_subtitle(self, subtitle):
        if isinstance(subtitle, SubdivxSubtitle):
            # download the subtitle
            logger.info('Downloading subtitle %r', subtitle)

            # get download link
            download_link = self._get_download_link(subtitle)

            # download zip / rar file with the subtitle
            response = self.session.get(self.server_url + download_link, headers={'Referer': subtitle.page_link},
                                        timeout=30)
            self._check_response(response)

            # open the compressed archive
            archive = self._get_archive(response.content)

            # extract the subtitle
            subtitle_content = self._get_subtitle_from_archive(archive, subtitle)
            subtitle.content = fix_line_ending(subtitle_content)

    def _parse_subtitles_page(self, video, response, language):
        subtitles = []

        page_soup = ParserBeautifulSoup(response.content.decode('utf-8', 'ignore'), ['lxml', 'html.parser'])
        title_soups = page_soup.find_all("div", {'id': 'menu_detalle_buscador'})
        body_soups = page_soup.find_all("div", {'id': 'buscador_detalle'})

        for subtitle in range(0, len(title_soups)):
            title_soup, body_soup = title_soups[subtitle], body_soups[subtitle]

            # title
            title = title_soup.find("a").text.replace("Subtitulos de ", "")

            # filter by year
            if video.year and str(video.year) not in title:
                continue

            page_link = title_soup.find("a")["href"]

            # description
            description = body_soup.find("div", {'id': 'buscador_detalle_sub'}).text
            description = description.replace(",", " ").lower()

            # uploader
            uploader = body_soup.find("a", {'class': 'link1'}).text

            subtitle = self.subtitle_class(language, video, page_link, title, description, uploader)

            logger.debug('Found subtitle %r', subtitle)
            subtitles.append(subtitle)

        return subtitles

    def _get_download_link(self, subtitle):
        response = self.session.get(subtitle.page_link, timeout=20)
        self._check_response(response)
        try:
            page_soup = ParserBeautifulSoup(response.content.decode('utf-8', 'ignore'), ['lxml', 'html.parser'])
            links_soup = page_soup.find_all("a", {'class': 'detalle_link'})
            for link_soup in links_soup:
                if link_soup['href'].startswith('bajar'):
                    return self.server_url + link_soup['href']
            links_soup = page_soup.find_all("a", {'class': 'link1'})
            for link_soup in links_soup:
                if "bajar.php" in link_soup['href']:
                    return link_soup['href']
        except Exception as e:
            raise APIThrottled('Error parsing download link: ' + str(e))

        raise APIThrottled('Download link not found')

    @staticmethod
    def _check_response(response):
        if response.status_code != 200:
            raise ServiceUnavailable('Bad status code: ' + str(response.status_code))

    @staticmethod
    def _get_archive(content):
        # open the archive
        archive_stream = io.BytesIO(content)
        if rarfile.is_rarfile(archive_stream):
            logger.debug('Identified rar archive')
            archive = rarfile.RarFile(archive_stream)
        elif zipfile.is_zipfile(archive_stream):
            logger.debug('Identified zip archive')
            archive = zipfile.ZipFile(archive_stream)
        else:
            raise APIThrottled('Unsupported compressed format')

        return archive

    @staticmethod
    def _get_subtitle_from_archive(archive, subtitle):
        _valid_names = []
        for name in archive.namelist():
            # discard hidden files
            # discard non-subtitle files
            if not os.path.split(name)[-1].startswith('.') and name.lower().endswith(SUBTITLE_EXTENSIONS):
                _valid_names.append(name)

        # archive with only 1 subtitle
        if len(_valid_names) == 1:
            logger.debug("returning from archive: {} (single subtitle file)".format(_valid_names[0]))
            return archive.read(_valid_names[0])

        # in archives with more than 1 subtitle (season pack) we try to guess the best subtitle file
        _scores = get_scores(subtitle.video)
        _max_score = 0
        _max_name = ""
        for name in _valid_names:
            _guess = guessit(name)
            if 'season' not in _guess:
                _guess['season'] = -1
            if 'episode' not in _guess:
                _guess['episode'] = -1

            if isinstance(subtitle.video, Episode):
                logger.debug("guessing %s" % name)
                logger.debug("subtitle S{}E{} video S{}E{}".format(
                    _guess['season'], _guess['episode'], subtitle.video.season, subtitle.video.episode))

                if subtitle.video.episode != _guess['episode'] or subtitle.video.season != _guess['season']:
                    logger.debug('subtitle does not match video, skipping')
                    continue

            matches = set()
            matches |= guess_matches(subtitle.video, _guess)
            _score = sum((_scores.get(match, 0) for match in matches))
            logger.debug('srt matches: %s, score %d' % (matches, _score))
            if _score > _max_score:
                _max_score = _score
                _max_name = name
                logger.debug("new max: {} {}".format(name, _score))

        if _max_score > 0:
            logger.debug("returning from archive: {} scored {}".format(_max_name, _max_score))
            return archive.read(_max_name)

        raise APIThrottled('Can not find the subtitle in the compressed file')