[kaltura] Add new extractor

1 files changed, 134 insertions, 0 deletions

diff --git a/youtube_dl/extractor/kaltura.py b/youtube_dl/extractor/kaltura.py
new file mode 100644
index 0000000..2aff410
--- /dev/null
+++ b/youtube_dl/extractor/kaltura.py
@@ -0,0 +1,134 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..compat import compat_urllib_parse
+from ..utils import (
+    ExtractorError,
+    int_or_none,
+)
+
+
+class KalturaIE(InfoExtractor):
+    _VALID_URL = r'''(?x)
+    (?:kaltura:|
+       https?://(:?www\.)?kaltura\.com/index\.php/kwidget/(?:[^/]+/)*?wid/_
+    )(?P<partner_id>\d+)
+    (?::|
+       /(?:[^/]+/)*?entry_id/
+    )(?P<id>[0-9a-z_]+)'''
+    _API_BASE = 'http://cdnapi.kaltura.com/api_v3/index.php?'
+    _TESTS = [
+        {
+            'url': 'kaltura:269692:1_1jc2y3e4',
+            'md5': '3adcbdb3dcc02d647539e53f284ba171',
+            'info_dict': {
+                'id': '1_1jc2y3e4',
+                'ext': 'mp4',
+                'title': 'Track 4',
+                'upload_date': '20131219',
+                'uploader_id': 'mlundberg@wolfgangsvault.com',
+                'description': 'The Allman Brothers Band, 12/16/1981',
+                'thumbnail': 're:^https?://.*/thumbnail/.*',
+                'timestamp': int,
+            },
+        },
+        {
+            'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
+            'only_matching': True,
+        },
+    ]
+
+    def _kaltura_api_call(self, video_id, actions, *args, **kwargs):
+        params = actions[0]
+        if len(actions) > 1:
+            for i, a in enumerate(actions[1:], start=1):
+                for k, v in a.items():
+                    params['%d:%s' % (i, k)] = v
+
+        query = compat_urllib_parse.urlencode(params)
+        url = self._API_BASE + query
+        data = self._download_json(url, video_id, *args, **kwargs)
+
+        status = data if len(actions) == 1 else data[0]
+        if status.get('objectType') == 'KalturaAPIException':
+            raise ExtractorError(
+                '%s said: %s' % (self.IE_NAME, status['message']))
+
+        return data
+
+    def _get_kaltura_signature(self, video_id, partner_id):
+        actions = [{
+            'apiVersion': '3.1',
+            'expiry': 86400,
+            'format': 1,
+            'service': 'session',
+            'action': 'startWidgetSession',
+            'widgetId': '_%s' % partner_id,
+        }]
+        return self._kaltura_api_call(
+            video_id, actions, note='Downloading Kaltura signature')['ks']
+
+    def _get_video_info(self, video_id, partner_id):
+        signature = self._get_kaltura_signature(video_id, partner_id)
+        actions = [
+            {
+                'action': 'null',
+                'apiVersion': '3.1.5',
+                'clientTag': 'kdp:v3.8.5',
+                'format': 1,  # JSON, 2 = XML, 3 = PHP
+                'service': 'multirequest',
+                'ks': signature,
+            },
+            {
+                'action': 'get',
+                'entryId': video_id,
+                'service': 'baseentry',
+                'version': '-1',
+            },
+            {
+                'action': 'getContextData',
+                'contextDataParams:objectType': 'KalturaEntryContextDataParams',
+                'contextDataParams:referrer': 'http://www.kaltura.com/',
+                'contextDataParams:streamerType': 'http',
+                'entryId': video_id,
+                'service': 'baseentry',
+            },
+        ]
+        return self._kaltura_api_call(
+            video_id, actions, note='Downloading video info JSON')
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        mobj = re.match(self._VALID_URL, url)
+        partner_id, entry_id = mobj.group('partner_id'), mobj.group('id')
+
+        info, source_data = self._get_video_info(entry_id, partner_id)
+
+        formats = [{
+            'format_id': '%(fileExt)s-%(bitrate)s' % f,
+            'ext': f['fileExt'],
+            'tbr': f['bitrate'],
+            'fps': f.get('frameRate'),
+            'filesize_approx': int_or_none(f.get('size'), invscale=1024),
+            'container': f.get('containerFormat'),
+            'vcodec': f.get('videoCodecId'),
+            'height': f.get('height'),
+            'width': f.get('width'),
+            'url': '%s/flavorId/%s' % (info['dataUrl'], f['id']),
+        } for f in source_data['flavorAssets']]
+        self._sort_formats(formats)
+
+        return {
+            'id': video_id,
+            'title': info['name'],
+            'formats': formats,
+            'description': info.get('description'),
+            'thumbnail': info.get('thumbnailUrl'),
+            'duration': info.get('duration'),
+            'timestamp': info.get('createdAt'),
+            'uploader_id': info.get('userId'),
+            'view_count': info.get('plays'),
+        }