[yandexdisk] extract info from webpage

the public API does not return metadata when download limit is reached

diff --git a/youtube_dl/extractor/yandexdisk.py b/youtube_dl/extractor/yandexdisk.py
index 21f37c1927eda414fbdd06652b2d06d75e62efad..6fcd8ee7e9b779e0e341ad6285226cabc2cbdca8 100644 (file)
--- a/youtube_dl/extractor/yandexdisk.py
+++ b/youtube_dl/extractor/yandexdisk.py
@@ -2,24 +2,23 @@
 from __future__ import unicode_literals
 
 import json
+import re
 
 from .common import InfoExtractor
-from ..compat import compat_HTTPError
 from ..utils import (
     determine_ext,
-    ExtractorError,
     float_or_none,
     int_or_none,
     mimetype2ext,
-    parse_iso8601,
+    try_get,
     urljoin,
 )
 
 
 class YandexDiskIE(InfoExtractor):
     _VALID_URL = r'''(?x)https?://
-        (?:
-            (?:www\.)?yadi\.sk|
+        (?P<domain>
+            yadi\.sk|
             disk\.yandex\.
                 (?:
                     az|
@@ -38,7 +37,7 @@ class YandexDiskIE(InfoExtractor):
 
     _TESTS = [{
         'url': 'https://yadi.sk/i/VdOeDou8eZs6Y',
-        'md5': '33955d7ae052f15853dc41f35f17581c',
+        'md5': 'a4a8d52958c8fddcf9845935070402ae',
         'info_dict': {
             'id': 'VdOeDou8eZs6Y',
             'ext': 'mp4',
@@ -46,10 +45,9 @@ class YandexDiskIE(InfoExtractor):
             'duration': 168.6,
             'uploader': 'y.botova',
             'uploader_id': '300043621',
-            'timestamp': 1421396809,
-            'upload_date': '20150116',
             'view_count': int,
         },
+        'expected_warnings': ['Unable to download JSON metadata'],
     }, {
         'url': 'https://yadi.sk/d/h3WAXvDS3Li3Ce',
         'only_matching': True,
@@ -59,51 +57,58 @@ class YandexDiskIE(InfoExtractor):
     }]
 
     def _real_extract(self, url):
-        video_id = self._match_id(url)
+        domain, video_id = re.match(self._VALID_URL, url).groups()
 
-        try:
-            resource = self._download_json(
-                'https://cloud-api.yandex.net/v1/disk/public/resources',
-                video_id, query={'public_key': url})
-        except ExtractorError as e:
-            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
-                error_description = self._parse_json(
-                    e.cause.read().decode(), video_id)['description']
-                raise ExtractorError(error_description, expected=True)
-            raise
+        webpage = self._download_webpage(url, video_id)
+        store = self._parse_json(self._search_regex(
+            r'<script[^>]+id="store-prefetch"[^>]*>\s*({.+?})\s*</script>',
+            webpage, 'store'), video_id)
+        resource = store['resources'][store['rootResourceId']]
 
         title = resource['name']
-        public_url = resource.get('public_url')
+        meta = resource.get('meta') or {}
+
+        public_url = meta.get('short_url')
         if public_url:
             video_id = self._match_id(public_url)
 
-        self._set_cookie('yadi.sk', 'yandexuid', '0')
+        source_url = (self._download_json(
+            'https://cloud-api.yandex.net/v1/disk/public/resources/download',
+            video_id, query={'public_key': url}, fatal=False) or {}).get('href')
+        video_streams = resource.get('videoStreams') or {}
+        video_hash = resource.get('hash') or url
+        environment = store.get('environment') or {}
+        sk = environment.get('sk')
+        yandexuid = environment.get('yandexuid')
+        if sk and yandexuid and not (source_url and video_streams):
+            self._set_cookie(domain, 'yandexuid', yandexuid)
 
-        def call_api(action):
-            return (self._download_json(
-                urljoin(url, '/public/api/') + action, video_id, data=json.dumps({
-                    'hash': url,
-                    # obtain sk if needed from call_api('check-auth') while
-                    # the yandexuid cookie is set and sending an empty JSON object
-                    'sk': 'ya6b52f8c6b12abe91a66d22d3a31084b'
-                }).encode(), headers={
-                    'Content-Type': 'text/plain',
-                }, fatal=False) or {}).get('data') or {}
+            def call_api(action):
+                return (self._download_json(
+                    urljoin(url, '/public/api/') + action, video_id, data=json.dumps({
+                        'hash': video_hash,
+                        'sk': sk,
+                    }).encode(), headers={
+                        'Content-Type': 'text/plain',
+                    }, fatal=False) or {}).get('data') or {}
+            if not source_url:
+                # TODO: figure out how to detect if download limit has
+                # been reached and then avoid unnecessary source format
+                # extraction requests
+                source_url = call_api('download-url').get('url')
+            if not video_streams:
+                video_streams = call_api('get-video-streams')
 
         formats = []
-        source_url = resource.get('file')
-        if not source_url:
-            source_url = call_api('download-url').get('url')
         if source_url:
             formats.append({
                 'url': source_url,
                 'format_id': 'source',
-                'ext': determine_ext(title, mimetype2ext(resource.get('mime_type')) or 'mp4'),
+                'ext': determine_ext(title, meta.get('ext') or mimetype2ext(meta.get('mime_type')) or 'mp4'),
                 'quality': 1,
-                'filesize': int_or_none(resource.get('size'))
+                'filesize': int_or_none(meta.get('size'))
             })
 
-        video_streams = call_api('get-video-streams')
         for video in (video_streams.get('videos') or []):
             format_url = video.get('url')
             if not format_url:
@@ -128,15 +133,15 @@ class YandexDiskIE(InfoExtractor):
                 })
         self._sort_formats(formats)
 
-        owner = resource.get('owner') or {}
+        uid = resource.get('uid')
+        display_name = try_get(store, lambda x: x['users'][uid]['displayName'])
 
         return {
             'id': video_id,
             'title': title,
             'duration': float_or_none(video_streams.get('duration'), 1000),
-            'uploader': owner.get('display_name'),
-            'uploader_id': owner.get('uid'),
-            'view_count': int_or_none(resource.get('views_count')),
-            'timestamp': parse_iso8601(resource.get('created')),
+            'uploader': display_name,
+            'uploader_id': uid,
+            'view_count': int_or_none(meta.get('views_counter')),
             'formats': formats,
         }