[douyu] Fix extraction and update _TESTS

They've switched from flv to hls

Closes #12301

ChangeLog

@@ -1,3 +1,9 @@
+version <unreleased>
+
+Extractors
+* [douyu] Fix extraction (#12301)
+
+
 version 2017.02.27
 
 Core

youtube_dl/extractor/douyutv.py

@@ -1,15 +1,7 @@
 # coding: utf-8
 from __future__ import unicode_literals
 
-import hashlib
-import time
-import uuid
-
 from .common import InfoExtractor
-from ..compat import (
-    compat_str,
-    compat_urllib_parse_urlencode,
-)
 from ..utils import (
     ExtractorError,
     unescapeHTML,
@@ -24,8 +16,8 @@ class DouyuTVIE(InfoExtractor):
         'info_dict': {
             'id': '17732',
             'display_id': 'iseven',
-            'ext': 'flv',
-            'title': 're:^清晨醒脑！T-ara根本停不下来！ [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
+            'ext': 'mp4',
+            'title': 're:^清晨醒脑！T-ARA根本停不下来！ [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
             'description': r're:.*m7show@163\.com.*',
             'thumbnail': r're:^https?://.*\.jpg$',
             'uploader': '7师傅',
@@ -39,7 +31,7 @@ class DouyuTVIE(InfoExtractor):
         'info_dict': {
             'id': '85982',
             'display_id': '85982',
-            'ext': 'flv',
+            'ext': 'mp4',
             'title': 're:^小漠从零单排记！——CSOL2躲猫猫 [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
             'description': 'md5:746a2f7a253966a06755a912f0acc0d2',
             'thumbnail': r're:^https?://.*\.jpg$',
@@ -55,8 +47,8 @@ class DouyuTVIE(InfoExtractor):
         'info_dict': {
             'id': '17732',
             'display_id': '17732',
-            'ext': 'flv',
-            'title': 're:^清晨醒脑！T-ara根本停不下来！ [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
+            'ext': 'mp4',
+            'title': 're:^清晨醒脑！T-ARA根本停不下来！ [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
             'description': r're:.*m7show@163\.com.*',
             'thumbnail': r're:^https?://.*\.jpg$',
             'uploader': '7师傅',
@@ -96,45 +88,18 @@ def _real_extract(self, url):
         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:
-            raise ExtractorError(
-                '%s reported error %i' % (self.IE_NAME, error_code),
-                expected=True)
-
-        base_url = video_info['data']['rtmp_url']
-        live_path = video_info['data']['rtmp_live']
-
-        video_url = '%s/%s' % (base_url, live_path)
+        formats = self._extract_m3u8_formats(
+            room['hls_url'], video_id, ext='mp4')
 
         title = self._live_title(unescapeHTML(room['room_name']))
-        description = room.get('notice')
+        description = room.get('show_details')
         thumbnail = room.get('room_src')
         uploader = room.get('nickname')
 
         return {
             'id': room_id,
             'display_id': video_id,
-            'url': video_url,
+            'formats': formats,
             'title': title,
             'description': description,
             'thumbnail': thumbnail,