[douyu] Support Douyu shows (closes #12228)

youtube_dl/extractor/douyutv.py

@@ -3,11 +3,14 @@ from __future__ import unicode_literals
 
 import time
 import hashlib
+import re
 
 from .common import InfoExtractor
 from ..utils import (
     ExtractorError,
     unescapeHTML,
+    unified_strdate,
+    urljoin,
 )
 
 
@@ -117,3 +120,82 @@ class DouyuTVIE(InfoExtractor):
             'uploader': uploader,
             'is_live': True,
         }
+
+
+class DouyuShowIE(InfoExtractor):
+    _VALID_URL = r'https?://v(?:mobile)?\.douyu\.com/show/(?P<id>[0-9a-zA-Z]+)'
+
+    _TESTS = [{
+        'url': 'https://v.douyu.com/show/rjNBdvnVXNzvE2yw',
+        'md5': '0c2cfd068ee2afe657801269b2d86214',
+        'info_dict': {
+            'id': 'rjNBdvnVXNzvE2yw',
+            'ext': 'mp4',
+            'title': '陈一发儿：砒霜 我有个室友系列！04-01 22点场',
+            'duration': 7150.08,
+            'thumbnail': r're:^https?://.*\.jpg$',
+            'uploader': '陈一发儿',
+            'uploader_id': 'XrZwYelr5wbK',
+            'uploader_url': 'https://v.douyu.com/author/XrZwYelr5wbK',
+            'upload_date': '20170402',
+        },
+    }, {
+        'url': 'https://vmobile.douyu.com/show/rjNBdvnVXNzvE2yw',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
+        url = url.replace('vmobile.', 'v.')
+        video_id = self._match_id(url)
+
+        webpage = self._download_webpage(url, video_id)
+
+        room_info = self._parse_json(self._search_regex(
+            r'var\s+\$ROOM\s*=\s*({.+});', webpage, 'room info'), video_id)
+
+        video_info = None
+
+        for trial in range(5):
+            # Sometimes Douyu rejects our request. Let's try it more times
+            try:
+                video_info = self._download_json(
+                    'https://vmobile.douyu.com/video/getInfo', video_id,
+                    query={'vid': video_id},
+                    headers={
+                        'Referer': url,
+                        'x-requested-with': 'XMLHttpRequest',
+                    })
+                break
+            except ExtractorError:
+                self._sleep(1, video_id)
+
+        if not video_info:
+            raise ExtractorError('Can\'t fetch video info')
+
+        formats = self._extract_m3u8_formats(
+            video_info['data']['video_url'], video_id,
+            entry_protocol='m3u8_native', ext='mp4')
+
+        upload_date = unified_strdate(self._html_search_regex(
+            r'<em>上传时间：</em><span>([^<]+)</span>', webpage,
+            'upload date', fatal=False))
+
+        uploader = uploader_id = uploader_url = None
+        mobj = re.search(
+            r'(?m)<a[^>]+href="/author/([0-9a-zA-Z]+)".+?<strong[^>]+title="([^"]+)"',
+            webpage)
+        if mobj:
+            uploader_id, uploader = mobj.groups()
+            uploader_url = urljoin(url, '/author/' + uploader_id)
+
+        return {
+            'id': video_id,
+            'title': room_info['name'],
+            'formats': formats,
+            'duration': room_info.get('duration'),
+            'thumbnail': room_info.get('pic'),
+            'upload_date': upload_date,
+            'uploader': uploader,
+            'uploader_id': uploader_id,
+            'uploader_url': uploader_url,
+        }