[dailymotion:playlist] fix extraction(closes #16894)

youtube_dl/extractor/dailymotion.py

@@ -2,6 +2,7 @@
 from __future__ import unicode_literals
 
 import base64
+import functools
 import hashlib
 import itertools
 import json
@@ -16,11 +17,13 @@ from ..utils import (
     error_to_compat_str,
     ExtractorError,
     int_or_none,
+    mimetype2ext,
+    OnDemandPagedList,
     parse_iso8601,
     sanitized_Request,
     str_to_int,
     unescapeHTML,
-    mimetype2ext,
+    urlencode_postdata,
 )
 
 
@@ -343,58 +346,73 @@ class DailymotionIE(DailymotionBaseInfoExtractor):
 
 class DailymotionPlaylistIE(DailymotionBaseInfoExtractor):
     IE_NAME = 'dailymotion:playlist'
-    _VALID_URL = r'(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/playlist/(?P<id>[^/?#&]+)'
-    _MORE_PAGES_INDICATOR = r'(?s)<div class="pages[^"]*">.*?<a\s+class="[^"]*?icon-arrow_right[^"]*?"'
-    _PAGE_TEMPLATE = 'https://www.dailymotion.com/playlist/%s/%s'
+    _VALID_URL = r'(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/playlist/(?P<id>x[0-9a-z]+)'
     _TESTS = [{
         'url': 'http://www.dailymotion.com/playlist/xv4bw_nqtv_sport/1#video=xl8v3q',
         'info_dict': {
             'title': 'SPORT',
-            'id': 'xv4bw_nqtv_sport',
+            'id': 'xv4bw',
         },
         'playlist_mincount': 20,
     }]
-
-    def _extract_entries(self, id):
-        video_ids = set()
-        processed_urls = set()
-        for pagenum in itertools.count(1):
-            page_url = self._PAGE_TEMPLATE % (id, pagenum)
-            webpage, urlh = self._download_webpage_handle_no_ff(
-                page_url, id, 'Downloading page %s' % pagenum)
-            if urlh.geturl() in processed_urls:
-                self.report_warning('Stopped at duplicated page %s, which is the same as %s' % (
-                    page_url, urlh.geturl()), id)
-                break
-
-            processed_urls.add(urlh.geturl())
-
-            for video_id in re.findall(r'data-xid="(.+?)"', webpage):
-                if video_id not in video_ids:
-                    yield self.url_result(
-                        'http://www.dailymotion.com/video/%s' % video_id,
-                        DailymotionIE.ie_key(), video_id)
-                    video_ids.add(video_id)
-
-            if re.search(self._MORE_PAGES_INDICATOR, webpage) is None:
-                break
+    _PAGE_SIZE = 100
+
+    def _fetch_page(self, playlist_id, authorizaion, page):
+        page += 1
+        videos = self._download_json(
+            'https://graphql.api.dailymotion.com',
+            playlist_id, 'Downloading page %d' % page,
+            data=json.dumps({
+                'query': '''{
+  collection(xid: "%s") {
+    videos(first: %d, page: %d) {
+      pageInfo {
+        hasNextPage
+        nextPage
+      }
+      edges {
+        node {
+          xid
+          url
+        }
+      }
+    }
+  }
+}''' % (playlist_id, self._PAGE_SIZE, page)
+            }).encode(), headers={
+                'Authorization': authorizaion,
+                'Origin': 'https://www.dailymotion.com',
+            })['data']['collection']['videos']
+        for edge in videos['edges']:
+            node = edge['node']
+            yield self.url_result(
+                node['url'], DailymotionIE.ie_key(), node['xid'])
 
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        playlist_id = mobj.group('id')
+        playlist_id = self._match_id(url)
         webpage = self._download_webpage(url, playlist_id)
-
-        return {
-            '_type': 'playlist',
-            'id': playlist_id,
-            'title': self._og_search_title(webpage),
-            'entries': self._extract_entries(playlist_id),
-        }
-
-
-class DailymotionUserIE(DailymotionPlaylistIE):
+        api = self._parse_json(self._search_regex(
+            r'__PLAYER_CONFIG__\s*=\s*({.+?});',
+            webpage, 'player config'), playlist_id)['context']['api']
+        auth = self._download_json(
+            api.get('auth_url', 'https://graphql.api.dailymotion.com/oauth/token'),
+            playlist_id, data=urlencode_postdata({
+                'client_id': api.get('client_id', 'f1a362d288c1b98099c7'),
+                'client_secret': api.get('client_secret', 'eea605b96e01c796ff369935357eca920c5da4c5'),
+                'grant_type': 'client_credentials',
+            }))
+        authorizaion = '%s %s' % (auth.get('token_type', 'Bearer'), auth['access_token'])
+        entries = OnDemandPagedList(functools.partial(
+            self._fetch_page, playlist_id, authorizaion), self._PAGE_SIZE)
+        return self.playlist_result(
+            entries, playlist_id,
+            self._og_search_title(webpage))
+
+
+class DailymotionUserIE(DailymotionBaseInfoExtractor):
     IE_NAME = 'dailymotion:user'
     _VALID_URL = r'https?://(?:www\.)?dailymotion\.[a-z]{2,3}/(?!(?:embed|swf|#|video|playlist)/)(?:(?:old/)?user/)?(?P<user>[^/]+)'
+    _MORE_PAGES_INDICATOR = r'(?s)<div class="pages[^"]*">.*?<a\s+class="[^"]*?icon-arrow_right[^"]*?"'
     _PAGE_TEMPLATE = 'http://www.dailymotion.com/user/%s/%s'
     _TESTS = [{
         'url': 'https://www.dailymotion.com/user/nqtv',
@@ -416,6 +434,30 @@ class DailymotionUserIE(DailymotionPlaylistIE):
         'skip': 'Takes too long time',
     }]
 
+    def _extract_entries(self, id):
+        video_ids = set()
+        processed_urls = set()
+        for pagenum in itertools.count(1):
+            page_url = self._PAGE_TEMPLATE % (id, pagenum)
+            webpage, urlh = self._download_webpage_handle_no_ff(
+                page_url, id, 'Downloading page %s' % pagenum)
+            if urlh.geturl() in processed_urls:
+                self.report_warning('Stopped at duplicated page %s, which is the same as %s' % (
+                    page_url, urlh.geturl()), id)
+                break
+
+            processed_urls.add(urlh.geturl())
+
+            for video_id in re.findall(r'data-xid="(.+?)"', webpage):
+                if video_id not in video_ids:
+                    yield self.url_result(
+                        'http://www.dailymotion.com/video/%s' % video_id,
+                        DailymotionIE.ie_key(), video_id)
+                    video_ids.add(video_id)
+
+            if re.search(self._MORE_PAGES_INDICATOR, webpage) is None:
+                break
+
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         user = mobj.group('user')