[youtube] Fix extraction.
[youtube-dl] / youtube_dl / extractor / infoq.py
index 55f7608b5b257ecc7be179dd9386f731cf65c79a..18249cf9b4a29fabdcc7cf4b41061671e7ea33e8 100644 (file)
-from __future__ import unicode_literals
+# coding: utf-8
 
-import base64
-import re
+from __future__ import unicode_literals
 
-from .common import InfoExtractor
+from ..compat import (
+    compat_b64decode,
+    compat_urllib_parse_unquote,
+    compat_urlparse,
+)
 from ..utils import (
-    compat_urllib_parse,
+    determine_ext,
+    update_url_query,
 )
+from .bokecc import BokeCCBaseIE
 
 
-class InfoQIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?infoq\.com/[^/]+/(?P<id>[^/]+)$'
+class InfoQIE(BokeCCBaseIE):
+    _VALID_URL = r'https?://(?:www\.)?infoq\.com/(?:[^/]+/)+(?P<id>[^/]+)'
 
-    _TEST = {
-        u'name': u'InfoQ',
-        u'url': u'http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things',
-        u'md5': u'fcaa3d995e04080dcb9465d86b5eef62',
-        u'info_dict': {
-            u'id': u'12-jan-pythonthings',
-            u'ext': u'mp4',
-            u'description': u'Mike Pirnat presents some tips and tricks, standard libraries and third party packages that make programming in Python a richer experience.',
-            u'title': u'A Few of My Favorite [Python] Things',
+    _TESTS = [{
+        'url': 'http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things',
+        'md5': 'b5ca0e0a8c1fed93b0e65e48e462f9a2',
+        'info_dict': {
+            'id': 'A-Few-of-My-Favorite-Python-Things',
+            'ext': 'mp4',
+            'description': 'Mike Pirnat presents some tips and tricks, standard libraries and third party packages that make programming in Python a richer experience.',
+            'title': 'A Few of My Favorite [Python] Things',
+        },
+    }, {
+        'url': 'http://www.infoq.com/fr/presentations/changez-avis-sur-javascript',
+        'only_matching': True,
+    }, {
+        'url': 'http://www.infoq.com/cn/presentations/openstack-continued-delivery',
+        'md5': '4918d0cca1497f2244572caf626687ef',
+        'info_dict': {
+            'id': 'openstack-continued-delivery',
+            'title': 'OpenStack持续交付之路',
+            'ext': 'flv',
+            'description': 'md5:308d981fb28fa42f49f9568322c683ff',
         },
-    }
+    }, {
+        'url': 'https://www.infoq.com/presentations/Simple-Made-Easy',
+        'md5': '0e34642d4d9ef44bf86f66f6399672db',
+        'info_dict': {
+            'id': 'Simple-Made-Easy',
+            'title': 'Simple Made Easy',
+            'ext': 'mp3',
+            'description': 'md5:3e0e213a8bbd074796ef89ea35ada25b',
+        },
+        'params': {
+            'format': 'bestaudio',
+        },
+    }]
 
-    def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
+    def _extract_rtmp_video(self, webpage):
+        # The server URL is hardcoded
+        video_url = 'rtmpe://video.infoq.com/cfx/st/'
 
-        webpage = self._download_webpage(url, video_id)
+        # Extract video URL
+        encoded_id = self._search_regex(
+            r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id', default=None)
+
+        real_id = compat_urllib_parse_unquote(compat_b64decode(encoded_id).decode('utf-8'))
+        playpath = 'mp4:' + real_id
+
+        return [{
+            'format_id': 'rtmp_video',
+            'url': video_url,
+            'ext': determine_ext(playpath),
+            'play_path': playpath,
+        }]
+
+    def _extract_cf_auth(self, webpage):
+        policy = self._search_regex(r'InfoQConstants\.scp\s*=\s*\'([^\']+)\'', webpage, 'policy')
+        signature = self._search_regex(r'InfoQConstants\.scs\s*=\s*\'([^\']+)\'', webpage, 'signature')
+        key_pair_id = self._search_regex(r'InfoQConstants\.sck\s*=\s*\'([^\']+)\'', webpage, 'key-pair-id')
+        return {
+            'Policy': policy,
+            'Signature': signature,
+            'Key-Pair-Id': key_pair_id,
+        }
 
-        self.report_extraction(video_id)
+    def _extract_http_video(self, webpage):
+        http_video_url = self._search_regex(r'P\.s\s*=\s*\'([^\']+)\'', webpage, 'video URL')
+        http_video_url = update_url_query(http_video_url, self._extract_cf_auth(webpage))
+        return [{
+            'format_id': 'http_video',
+            'url': http_video_url,
+        }]
+
+    def _extract_http_audio(self, webpage, video_id):
+        fields = self._hidden_inputs(webpage)
+        http_audio_url = fields.get('filename')
+        if not http_audio_url:
+            return []
+
+        # base URL is found in the Location header in the response returned by
+        # GET https://www.infoq.com/mp3download.action?filename=... when logged in.
+        http_audio_url = compat_urlparse.urljoin('http://res.infoq.com/downloads/mp3downloads/', http_audio_url)
+        http_audio_url = update_url_query(http_audio_url, self._extract_cf_auth(webpage))
+
+        # audio file seem to be missing some times even if there is a download link
+        # so probe URL to make sure
+        if not self._is_valid_url(http_audio_url, video_id):
+            return []
+
+        return [{
+            'format_id': 'http_audio',
+            'url': http_audio_url,
+            'vcodec': 'none',
+        }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        webpage = self._download_webpage(url, video_id)
 
         video_title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
         video_description = self._html_search_meta('description', webpage, 'description')
 
-        video_url = 'rtmpe://video.infoq.com/cfx/st/'
-        base64playpath = self._search_regex(r"jsclassref = '([^']*)'", webpage, 'jsclassref')
-        playpath = 'mp4:' + base64.b64decode(base64playpath).decode('utf-8')
+        if '/cn/' in url:
+            # for China videos, HTTP video URL exists but always fails with 403
+            formats = self._extract_bokecc_formats(webpage, video_id)
+        else:
+            formats = (
+                self._extract_rtmp_video(webpage)
+                + self._extract_http_video(webpage)
+                + self._extract_http_audio(webpage, video_id))
 
-        video_filename = playpath.split('/')[-1]
-        video_id, extension = video_filename.split('.')
+        self._sort_formats(formats)
 
-        return [{
+        return {
             'id': video_id,
             'title': video_title,
             'description': video_description,
-            'formats': [{
-                'url': video_url,
-                'ext': extension,
-                'play_path': playpath,
-            }],
-        }]
+            'formats': formats,
+        }