diff options
| -rw-r--r-- | youtube_dl/extractor/douyutv.py | 96 |
1 files changed, 44 insertions, 52 deletions
diff --git a/youtube_dl/extractor/douyutv.py b/youtube_dl/extractor/douyutv.py index 33efc993e..e366e17e6 100644 --- a/youtube_dl/extractor/douyutv.py +++ b/youtube_dl/extractor/douyutv.py @@ -4,9 +4,16 @@ from __future__ import unicode_literals import hashlib import time import uuid + from .common import InfoExtractor -from ..utils import (ExtractorError, unescapeHTML) -from ..compat import (compat_str, compat_basestring, compat_urllib_parse_urlencode) +from ..compat import ( + compat_str, + compat_urllib_parse_urlencode, +) +from ..utils import ( + ExtractorError, + unescapeHTML, +) class DouyuTVIE(InfoExtractor): @@ -63,6 +70,10 @@ class DouyuTVIE(InfoExtractor): 'only_matching': True, }] + # Decompile core.swf in webpage by ffdec "Search SWFs in memory". core.swf + # is encrypted originally, but ffdec can dump memory to get the decrypted one. + _API_KEY = 'A12Svb&%1UUmf@hC' + def _real_extract(self, url): video_id = self._match_id(url) @@ -73,60 +84,41 @@ class DouyuTVIE(InfoExtractor): room_id = self._html_search_regex( r'"room_id"\s*:\s*(\d+),', page, 'room id') - room_url = 'http://m.douyu.com/html5/live?roomId=%s' % room_id - room_content = self._download_webpage(room_url, video_id) - room_json = self._parse_json(room_content, video_id, fatal=False) - - room = room_json['data'] + room = self._download_json( + 'http://m.douyu.com/html5/live?roomId=%s' % room_id, video_id, + note='Downloading room info')['data'] - show_status = room.get('show_status') # 1 = live, 2 = offline - if show_status == '2': - raise ExtractorError( - 'Live stream is offline', expected=True) - - flv_json = None - # Douyu API sometimes returns error "Unable to load the requested class: eticket_redis_cache" - # Retry with different parameters - same parameters cause same errors - for i in range(5): - tt = int(time.time() / 60) - did = uuid.uuid4().hex.upper() - - # Decompile core.swf in webpage by ffdec "Search SWFs in memory" - # core.swf is encrypted originally, but ffdec can dump memory to get the decrypted one - # If API changes in the future, just use this way to update - sign_content = '{room_id}{did}A12Svb&%1UUmf@hC{tt}'.format(room_id = room_id, did = did, tt = tt) - sign = hashlib.md5((sign_content).encode('utf-8')).hexdigest() - - payload = {'cdn': 'ws', 'rate': '0', 'tt': tt, 'did': did, 'sign': sign} - flv_data = compat_urllib_parse_urlencode(payload) - - flv_request_url = 'http://www.douyu.com/lapi/live/getPlay/%s' % room_id - flv_content = self._download_webpage(flv_request_url, video_id, data=flv_data, - headers={'Content-Type': 'application/x-www-form-urlencoded'}) - try: - flv_json = self._parse_json(flv_content, video_id, fatal=False) - except ExtractorError: - # Wait some time before retrying to get a different time() value - self._sleep(1, video_id, msg_template='%(video_id)s: Error occurs. ' - 'Waiting for %(timeout)s seconds before retrying') - continue - else: - break - if flv_json is None: - raise ExtractorError('Unable to fetch API result') - - flv = flv_json['data'] - - error_code = flv_json.get('error', 0) + if room.get('show_status') == '2': + raise ExtractorError('Live stream is offline', expected=True) + + tt = compat_str(int(time.time() / 60)) + did = uuid.uuid4().hex.upper() + + sign_content = ''.join((room_id, did, self._API_KEY, tt)) + sign = hashlib.md5((sign_content).encode('utf-8')).hexdigest() + + flv_data = compat_urllib_parse_urlencode({ + 'cdn': 'ws', + 'rate': '0', + 'tt': tt, + 'did': did, + 'sign': sign, + }) + + video_info = self._download_json( + 'http://www.douyu.com/lapi/live/getPlay/%s' % room_id, video_id, + data=flv_data, note='Downloading video info', + headers={'Content-Type': 'application/x-www-form-urlencoded'}) + + error_code = video_info.get('error', 0) if error_code is not 0: - error_desc = 'Server reported error %i' % error_code - if isinstance(flv, (compat_str, compat_basestring)): - error_desc += ': ' + flv - raise ExtractorError(error_desc, expected=True) + raise ExtractorError( + '%s reported error %i' % (self.IE_NAME, error_code), + expected=True) - base_url = flv['rtmp_url'] - live_path = flv['rtmp_live'] + base_url = video_info['data']['rtmp_url'] + live_path = video_info['data']['rtmp_live'] video_url = '%s/%s' % (base_url, live_path) |