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# coding: utf-8from __future__ import unicode_literals
import itertoolsimport re
from .common import InfoExtractorfrom ..compat import ( compat_urllib_parse, compat_urllib_request,)from ..utils import ( ExtractorError, parse_iso8601,)
class TwitchIE(InfoExtractor): # TODO: One broadcast may be split into multiple videos. The key # 'broadcast_id' is the same for all parts, and 'broadcast_part' # starts at 1 and increases. Can we treat all parts as one video? _VALID_URL = r"""(?x)^(?:http://)?(?:www\.)?twitch\.tv/
(?: (?P<channelid>[^/]+)| (?:(?:[^/]+)/v/(?P<vodid>[^/]+))| (?:(?:[^/]+)/b/(?P<videoid>[^/]+))| (?:(?:[^/]+)/c/(?P<chapterid>[^/]+)) ) /?(?:\#.*)?$ """
_PAGE_LIMIT = 100 _API_BASE = 'https://api.twitch.tv' _LOGIN_URL = 'https://secure.twitch.tv/user/login' _TESTS = [{ 'url': 'http://www.twitch.tv/riotgames/b/577357806', 'info_dict': { 'id': 'a577357806', 'title': 'Worlds Semifinals - Star Horn Royal Club vs. OMG', }, 'playlist_mincount': 12, }, { 'url': 'http://www.twitch.tv/acracingleague/c/5285812', 'info_dict': { 'id': 'c5285812', 'title': 'ACRL Off Season - Sports Cars @ Nordschleife', }, 'playlist_mincount': 3, }, { 'url': 'http://www.twitch.tv/vanillatv', 'info_dict': { 'id': 'vanillatv', 'title': 'VanillaTV', }, 'playlist_mincount': 412, }]
def _handle_error(self, response): if not isinstance(response, dict): return error = response.get('error') if error: raise ExtractorError( '%s returned error: %s - %s' % (self.IE_NAME, error, response.get('message')), expected=True)
def _download_json(self, url, video_id, note='Downloading JSON metadata'): response = super(TwitchIE, self)._download_json(url, video_id, note) self._handle_error(response) return response
def _extract_media(self, item, item_id): ITEMS = { 'a': 'video', 'v': 'vod', 'c': 'chapter', } info = self._extract_info(self._download_json( '%s/kraken/videos/%s%s' % (self._API_BASE, item, item_id), item_id, 'Downloading %s info JSON' % ITEMS[item]))
if item == 'v': access_token = self._download_json( '%s/api/vods/%s/access_token' % (self._API_BASE, item_id), item_id, 'Downloading %s access token' % ITEMS[item]) formats = self._extract_m3u8_formats( 'http://usher.twitch.tv/vod/%s?nauth=%s&nauthsig=%s' % (item_id, access_token['token'], access_token['sig']), item_id, 'mp4') info['formats'] = formats return info
response = self._download_json( '%s/api/videos/%s%s' % (self._API_BASE, item, item_id), item_id, 'Downloading %s playlist JSON' % ITEMS[item]) entries = [] chunks = response['chunks'] qualities = list(chunks.keys()) for num, fragment in enumerate(zip(*chunks.values()), start=1): formats = [] for fmt_num, fragment_fmt in enumerate(fragment): format_id = qualities[fmt_num] fmt = { 'url': fragment_fmt['url'], 'format_id': format_id, 'quality': 1 if format_id == 'live' else 0, } m = re.search(r'^(?P<height>\d+)[Pp]', format_id) if m: fmt['height'] = int(m.group('height')) formats.append(fmt) self._sort_formats(formats) entry = dict(info) entry['id'] = '%s_%d' % (entry['id'], num) entry['title'] = '%s part %d' % (entry['title'], num) entry['formats'] = formats entries.append(entry) return self.playlist_result(entries, info['id'], info['title'])
def _extract_info(self, info): return { 'id': info['_id'], 'title': info['title'], 'description': info['description'], 'duration': info['length'], 'thumbnail': info['preview'], 'uploader': info['channel']['display_name'], 'uploader_id': info['channel']['name'], 'timestamp': parse_iso8601(info['recorded_at']), 'view_count': info['views'], }
def _real_initialize(self): self._login()
def _login(self): (username, password) = self._get_login_info() if username is None: return
login_page = self._download_webpage( self._LOGIN_URL, None, 'Downloading login page')
authenticity_token = self._search_regex( r'<input name="authenticity_token" type="hidden" value="([^"]+)"', login_page, 'authenticity token')
login_form = { 'utf8': '✓'.encode('utf-8'), 'authenticity_token': authenticity_token, 'redirect_on_login': '', 'embed_form': 'false', 'mp_source_action': '', 'follow': '', 'user[login]': username, 'user[password]': password, }
request = compat_urllib_request.Request( self._LOGIN_URL, compat_urllib_parse.urlencode(login_form).encode('utf-8')) request.add_header('Referer', self._LOGIN_URL) response = self._download_webpage( request, None, 'Logging in as %s' % username)
m = re.search( r"id=([\"'])login_error_message\1[^>]*>(?P<msg>[^<]+)", response) if m: raise ExtractorError( 'Unable to login: %s' % m.group('msg').strip(), expected=True)
def _real_extract(self, url): mobj = re.match(self._VALID_URL, url) if mobj.group('chapterid'): return self._extract_media('c', mobj.group('chapterid'))
"""
webpage = self._download_webpage(url, chapter_id) m = re.search(r'PP\.archive_id = "([0-9]+)";', webpage) if not m: raise ExtractorError('Cannot find archive of a chapter') archive_id = m.group(1)
api = api_base + '/broadcast/by_chapter/%s.xml' % chapter_id doc = self._download_xml( api, chapter_id, note='Downloading chapter information', errnote='Chapter information download failed') for a in doc.findall('.//archive'): if archive_id == a.find('./id').text: break else: raise ExtractorError('Could not find chapter in chapter information')
video_url = a.find('./video_file_url').text video_ext = video_url.rpartition('.')[2] or 'flv'
chapter_api_url = 'https://api.twitch.tv/kraken/videos/c' + chapter_id chapter_info = self._download_json( chapter_api_url, 'c' + chapter_id, note='Downloading chapter metadata', errnote='Download of chapter metadata failed')
bracket_start = int(doc.find('.//bracket_start').text) bracket_end = int(doc.find('.//bracket_end').text)
# TODO determine start (and probably fix up file) # youtube-dl -v http://www.twitch.tv/firmbelief/c/1757457 #video_url += '?start=' + TODO:start_timestamp # bracket_start is 13290, but we want 51670615 self._downloader.report_warning('Chapter detected, but we can just download the whole file. ' 'Chapter starts at %s and ends at %s' % (formatSeconds(bracket_start), formatSeconds(bracket_end)))
info = { 'id': 'c' + chapter_id, 'url': video_url, 'ext': video_ext, 'title': chapter_info['title'], 'thumbnail': chapter_info['preview'], 'description': chapter_info['description'], 'uploader': chapter_info['channel']['display_name'], 'uploader_id': chapter_info['channel']['name'], } return info """
elif mobj.group('videoid'): return self._extract_media('a', mobj.group('videoid')) elif mobj.group('vodid'): return self._extract_media('v', mobj.group('vodid')) elif mobj.group('channelid'): channel_id = mobj.group('channelid') info = self._download_json( '%s/kraken/channels/%s' % (self._API_BASE, channel_id), channel_id, 'Downloading channel info JSON') channel_name = info.get('display_name') or info.get('name') entries = [] offset = 0 limit = self._PAGE_LIMIT for counter in itertools.count(1): response = self._download_json( '%s/kraken/channels/%s/videos/?offset=%d&limit=%d' % (self._API_BASE, channel_id, offset, limit), channel_id, 'Downloading channel videos JSON page %d' % counter) videos = response['videos'] if not videos: break entries.extend([self.url_result(video['url'], 'Twitch') for video in videos]) offset += limit return self.playlist_result(entries, channel_id, channel_name)
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