From 46720279c28afb646b6ac19bcb11e85bb4bea726 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaime=20Marqui=CC=81nez=20Ferra=CC=81ndiz?=
 <jaime.marquinez.ferrandiz@gmail.com>
Date: Fri, 12 Jul 2013 19:00:19 +0200
Subject: [PATCH] InfoExtractor: add some helper methods to extract OpenGraph
 info

---
 youtube_dl/extractor/common.py        | 24 ++++++++++++++++++++++++
 youtube_dl/extractor/cspan.py         |  4 +---
 youtube_dl/extractor/dailymotion.py   |  5 +----
 youtube_dl/extractor/ehow.py          | 11 +++--------
 youtube_dl/extractor/escapist.py      |  8 ++------
 youtube_dl/extractor/flickr.py        | 15 +++------------
 youtube_dl/extractor/funnyordie.py    |  5 +----
 youtube_dl/extractor/hotnewhiphop.py  |  8 ++------
 youtube_dl/extractor/instagram.py     | 10 ++--------
 youtube_dl/extractor/keek.py          |  3 +--
 youtube_dl/extractor/liveleak.py      |  6 ++----
 youtube_dl/extractor/nba.py           |  3 +--
 youtube_dl/extractor/statigram.py     | 10 ++--------
 youtube_dl/extractor/teamcoco.py      | 15 +++------------
 youtube_dl/extractor/traileraddict.py |  9 +++------
 youtube_dl/extractor/tutv.py          |  4 +---
 youtube_dl/extractor/vine.py          | 10 ++--------
 17 files changed, 54 insertions(+), 96 deletions(-)

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 1bd5538ca..0a0c4047d 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -257,6 +257,30 @@ def _get_login_info(self):
         
         return (username, password)
 
+    # Helper functions for extracting OpenGraph info
+    @staticmethod
+    def _og_regex(property):
+        return r'<meta.+?property=[\'"]og:%s[\'"].+?content=(?:"(.+?)"|\'(.+?)\')' % property
+
+    def _og_search_property(self, property, html, name=None, **kargs):
+        if name is None:
+            name = 'OpenGraph %s' % property
+        return self._html_search_regex(self._og_regex(property), html, name, **kargs)
+
+    def _og_search_thumbnail(self, html, **kargs):
+        return self._og_search_property('image', html, 'thumbnail url', fatal=False, **kargs)
+
+    def _og_search_description(self, html, **kargs):
+        return self._og_search_property('description', html, fatal=False, **kargs)
+
+    def _og_search_title(self, html, **kargs):
+        return self._og_search_property('title', html, **kargs)
+
+    def _og_search_video_url(self, html, name='video url', **kargs):
+        return self._html_search_regex([self._og_regex('video:secure_url'),
+                                        self._og_regex('video')],
+                                       html, name, **kargs)
+
 class SearchInfoExtractor(InfoExtractor):
     """
     Base class for paged search queries extractors.
diff --git a/youtube_dl/extractor/cspan.py b/youtube_dl/extractor/cspan.py
index a4853279b..7bf03c584 100644
--- a/youtube_dl/extractor/cspan.py
+++ b/youtube_dl/extractor/cspan.py
@@ -34,8 +34,6 @@ def _real_extract(self, url):
         description = self._html_search_regex(r'<meta (?:property="og:|name=")description" content="(.*?)"',
                                               webpage, 'description',
                                               flags=re.MULTILINE|re.DOTALL)
-        thumbnail = self._html_search_regex(r'<meta property="og:image" content="(.*?)"',
-                                            webpage, 'thumbnail')
 
         url = self._search_regex(r'<string name="URL">(.*?)</string>',
                                  video_info, 'video url')
@@ -49,5 +47,5 @@ def _real_extract(self, url):
                 'url': url,
                 'play_path': path,
                 'description': description,
-                'thumbnail': thumbnail,
+                'thumbnail': self._og_search_thumbnail(webpage),
                 }
diff --git a/youtube_dl/extractor/dailymotion.py b/youtube_dl/extractor/dailymotion.py
index 5fd2221a7..9bf7a28ca 100644
--- a/youtube_dl/extractor/dailymotion.py
+++ b/youtube_dl/extractor/dailymotion.py
@@ -39,9 +39,6 @@ def _real_extract(self, url):
         # Extract URL, uploader and title from webpage
         self.report_extraction(video_id)
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content="(.*?)" />',
-                                              webpage, 'title')
-
         video_uploader = self._search_regex([r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a>',
                                              # Looking for official user
                                              r'<(?:span|a) .*?rel="author".*?>([^<]+?)</'],
@@ -76,7 +73,7 @@ def _real_extract(self, url):
             'url':      video_url,
             'uploader': video_uploader,
             'upload_date':  video_upload_date,
-            'title':    video_title,
+            'title':    self._og_search_title(webpage),
             'ext':      video_extension,
             'thumbnail': info['thumbnail_url']
         }]
diff --git a/youtube_dl/extractor/ehow.py b/youtube_dl/extractor/ehow.py
index 1f0b3888e..2bb77aec6 100644
--- a/youtube_dl/extractor/ehow.py
+++ b/youtube_dl/extractor/ehow.py
@@ -28,14 +28,9 @@ def _real_extract(self, url):
         video_url = self._search_regex(r'(?:file|source)=(http[^\'"&]*)',
             webpage, u'video URL')
         final_url = compat_urllib_parse.unquote(video_url)        
-        thumbnail_url = self._search_regex(r'<meta property="og:image" content="(.+?)" />',
-            webpage, u'thumbnail URL')
         uploader = self._search_regex(r'<meta name="uploader" content="(.+?)" />',
             webpage, u'uploader')
-        title = self._search_regex(r'<meta property="og:title" content="(.+?)" />',
-            webpage, u'Video title').replace(' | eHow', '')
-        description = self._search_regex(r'<meta property="og:description" content="(.+?)" />',
-            webpage, u'video description')
+        title = self._og_search_title(webpage).replace(' | eHow', '')
         ext = determine_ext(final_url)
 
         return {
@@ -44,8 +39,8 @@ def _real_extract(self, url):
             'url':         final_url,
             'ext':         ext,
             'title':       title,
-            'thumbnail':   thumbnail_url,
-            'description': description,
+            'thumbnail':   self._og_search_thumbnail(webpage),
+            'description': self._og_search_description(webpage),
             'uploader':    uploader,
         }
 
diff --git a/youtube_dl/extractor/escapist.py b/youtube_dl/extractor/escapist.py
index 794460e84..3aa2da52c 100644
--- a/youtube_dl/extractor/escapist.py
+++ b/youtube_dl/extractor/escapist.py
@@ -36,11 +36,7 @@ def _real_extract(self, url):
         videoDesc = self._html_search_regex('<meta name="description" content="([^"]*)"',
             webpage, u'description', fatal=False)
 
-        imgUrl = self._html_search_regex('<meta property="og:image" content="([^"]*)"',
-            webpage, u'thumbnail', fatal=False)
-
-        playerUrl = self._html_search_regex('<meta property="og:video" content="([^"]*)"',
-            webpage, u'player url')
+        playerUrl = self._og_search_video_url(webpage, name='player url')
 
         title = self._html_search_regex('<meta name="title" content="([^"]*)"',
             webpage, u'player url').split(' : ')[-1]
@@ -70,7 +66,7 @@ def _real_extract(self, url):
             'upload_date': None,
             'title': title,
             'ext': 'mp4',
-            'thumbnail': imgUrl,
+            'thumbnail': self._og_search_thumbnail(webpage),
             'description': videoDesc,
             'player_url': playerUrl,
         }
diff --git a/youtube_dl/extractor/flickr.py b/youtube_dl/extractor/flickr.py
index bd97bff9a..80d96baf7 100644
--- a/youtube_dl/extractor/flickr.py
+++ b/youtube_dl/extractor/flickr.py
@@ -47,21 +47,12 @@ def _real_extract(self, url):
             raise ExtractorError(u'Unable to extract video url')
         video_url = mobj.group(1) + unescapeHTML(mobj.group(2))
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content=(?:"([^"]+)"|\'([^\']+)\')',
-            webpage, u'video title')
-
-        video_description = self._html_search_regex(r'<meta property="og:description" content=(?:"([^"]+)"|\'([^\']+)\')',
-            webpage, u'description', fatal=False)
-
-        thumbnail = self._html_search_regex(r'<meta property="og:image" content=(?:"([^"]+)"|\'([^\']+)\')',
-            webpage, u'thumbnail', fatal=False)
-
         return [{
             'id':          video_id,
             'url':         video_url,
             'ext':         'mp4',
-            'title':       video_title,
-            'description': video_description,
-            'thumbnail':   thumbnail,
+            'title':       self._og_search_title(webpage),
+            'description': self._og_search_description(webpage),
+            'thumbnail':   self._og_search_thumbnail(webpage),
             'uploader_id': video_uploader_id,
         }]
diff --git a/youtube_dl/extractor/funnyordie.py b/youtube_dl/extractor/funnyordie.py
index 388aacf2f..64363dcd5 100644
--- a/youtube_dl/extractor/funnyordie.py
+++ b/youtube_dl/extractor/funnyordie.py
@@ -27,14 +27,11 @@ def _real_extract(self, url):
         title = self._html_search_regex((r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>",
             r'<title>(?P<title>[^<]+?)</title>'), webpage, 'title', flags=re.DOTALL)
 
-        video_description = self._html_search_regex(r'<meta property="og:description" content="(?P<desc>.*?)"',
-            webpage, u'description', fatal=False, flags=re.DOTALL)
-
         info = {
             'id': video_id,
             'url': video_url,
             'ext': 'mp4',
             'title': title,
-            'description': video_description,
+            'description': self._og_search_description(webpage, flags=re.DOTALL),
         }
         return [info]
diff --git a/youtube_dl/extractor/hotnewhiphop.py b/youtube_dl/extractor/hotnewhiphop.py
index ca3abb7d7..ccca1d7e0 100644
--- a/youtube_dl/extractor/hotnewhiphop.py
+++ b/youtube_dl/extractor/hotnewhiphop.py
@@ -33,16 +33,12 @@ def _real_extract(self, url):
 
         video_title = self._html_search_regex(r"<title>(.*)</title>",
             webpage_src, u'title')
-        
-        # Getting thumbnail and if not thumbnail sets correct title for WSHH candy video.
-        thumbnail = self._html_search_regex(r'"og:image" content="(.*)"',
-            webpage_src, u'thumbnail', fatal=False)
 
         results = [{
                     'id': video_id,
                     'url' : video_url,
                     'title' : video_title,
-                    'thumbnail' : thumbnail,
+                    'thumbnail' : self._og_search_thumbnail(webpage_src),
                     'ext' : 'mp3',
                     }]
-        return results
\ No newline at end of file
+        return results
diff --git a/youtube_dl/extractor/instagram.py b/youtube_dl/extractor/instagram.py
index 6ae704efd..1ffadf67f 100644
--- a/youtube_dl/extractor/instagram.py
+++ b/youtube_dl/extractor/instagram.py
@@ -18,12 +18,6 @@ def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         video_id = mobj.group(1)
         webpage = self._download_webpage(url, video_id)
-        video_url = self._html_search_regex(
-            r'<meta property="og:video" content="(.+?)"',
-            webpage, u'video URL')
-        thumbnail_url = self._html_search_regex(
-            r'<meta property="og:image" content="(.+?)" />',
-            webpage, u'thumbnail URL', fatal=False)
         html_title = self._html_search_regex(
             r'<title>(.+?)</title>',
             webpage, u'title', flags=re.DOTALL)
@@ -34,9 +28,9 @@ def _real_extract(self, url):
 
         return [{
             'id':        video_id,
-            'url':       video_url,
+            'url':       self._og_search_video_url(webpage),
             'ext':       ext,
             'title':     title,
-            'thumbnail': thumbnail_url,
+            'thumbnail': self._og_search_thumbnail(webpage),
             'uploader_id' : uploader_id
         }]
diff --git a/youtube_dl/extractor/keek.py b/youtube_dl/extractor/keek.py
index 72ad6a3d0..dda78743d 100644
--- a/youtube_dl/extractor/keek.py
+++ b/youtube_dl/extractor/keek.py
@@ -24,8 +24,7 @@ def _real_extract(self, url):
         thumbnail = u'http://cdn.keek.com/keek/thumbnail/%s/w100/h75' % video_id
         webpage = self._download_webpage(url, video_id)
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content="(?P<title>.*?)"',
-            webpage, u'title')
+        video_title = self._og_search_title(webpage)
 
         uploader = self._html_search_regex(r'<div class="user-name-and-bio">[\S\s]+?<h2>(?P<uploader>.+?)</h2>',
             webpage, u'uploader', fatal=False)
diff --git a/youtube_dl/extractor/liveleak.py b/youtube_dl/extractor/liveleak.py
index cf8a2c931..dd062a14e 100644
--- a/youtube_dl/extractor/liveleak.py
+++ b/youtube_dl/extractor/liveleak.py
@@ -33,11 +33,9 @@ def _real_extract(self, url):
         video_url = self._search_regex(r'file: "(.*?)",',
             webpage, u'video URL')
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content="(?P<title>.*?)"',
-            webpage, u'title').replace('LiveLeak.com -', '').strip()
+        video_title = self._og_search_title(webpage).replace('LiveLeak.com -', '').strip()
 
-        video_description = self._html_search_regex(r'<meta property="og:description" content="(?P<desc>.*?)"',
-            webpage, u'description', fatal=False)
+        video_description = self._og_search_description(webpage)
 
         video_uploader = self._html_search_regex(r'By:.*?(\w+)</a>',
             webpage, u'uploader', fatal=False)
diff --git a/youtube_dl/extractor/nba.py b/youtube_dl/extractor/nba.py
index 122b7dd26..0f178905b 100644
--- a/youtube_dl/extractor/nba.py
+++ b/youtube_dl/extractor/nba.py
@@ -30,8 +30,7 @@ def _real_extract(self, url):
         video_url = u'http://ht-mobile.cdn.turner.com/nba/big' + video_id + '_nba_1280x720.mp4'
 
         shortened_video_id = video_id.rpartition('/')[2]
-        title = self._html_search_regex(r'<meta property="og:title" content="(.*?)"',
-            webpage, 'title', default=shortened_video_id).replace('NBA.com: ', '')
+        title = self._og_search_title(webpage, default=shortened_video_id).replace('NBA.com: ', '')
 
         # It isn't there in the HTML it returns to us
         # uploader_date = self._html_search_regex(r'<b>Date:</b> (.*?)</div>', webpage, 'upload_date', fatal=False)
diff --git a/youtube_dl/extractor/statigram.py b/youtube_dl/extractor/statigram.py
index ae9a63e8b..b8e6b3bf9 100644
--- a/youtube_dl/extractor/statigram.py
+++ b/youtube_dl/extractor/statigram.py
@@ -18,12 +18,6 @@ def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         video_id = mobj.group(1)
         webpage = self._download_webpage(url, video_id)
-        video_url = self._html_search_regex(
-            r'<meta property="og:video:secure_url" content="(.+?)">',
-            webpage, u'video URL')
-        thumbnail_url = self._html_search_regex(
-            r'<meta property="og:image" content="(.+?)" />',
-            webpage, u'thumbnail URL', fatal=False)
         html_title = self._html_search_regex(
             r'<title>(.+?)</title>',
             webpage, u'title')
@@ -34,9 +28,9 @@ def _real_extract(self, url):
 
         return [{
             'id':        video_id,
-            'url':       video_url,
+            'url':       self._og_search_video_url(webpage),
             'ext':       ext,
             'title':     title,
-            'thumbnail': thumbnail_url,
+            'thumbnail': self._og_search_thumbnail(webpage),
             'uploader_id' : uploader_id
         }]
diff --git a/youtube_dl/extractor/teamcoco.py b/youtube_dl/extractor/teamcoco.py
index 1dd5e1b68..ec92e589a 100644
--- a/youtube_dl/extractor/teamcoco.py
+++ b/youtube_dl/extractor/teamcoco.py
@@ -30,15 +30,6 @@ def _real_extract(self, url):
 
         self.report_extraction(video_id)
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content="(.+?)"',
-            webpage, u'title')
-
-        thumbnail = self._html_search_regex(r'<meta property="og:image" content="(.+?)"',
-            webpage, u'thumbnail', fatal=False)
-
-        video_description = self._html_search_regex(r'<meta property="og:description" content="(.*?)"',
-            webpage, u'description', fatal=False)
-
         data_url = 'http://teamcoco.com/cvp/2.0/%s.xml' % video_id
         data = self._download_webpage(data_url, video_id, 'Downloading data webpage')
 
@@ -49,7 +40,7 @@ def _real_extract(self, url):
             'id':          video_id,
             'url':         video_url,
             'ext':         'mp4',
-            'title':       video_title,
-            'thumbnail':   thumbnail,
-            'description': video_description,
+            'title':       self._og_search_title(webpage),
+            'thumbnail':   self._og_search_thumbnail(webpage),
+            'description': self._og_search_description(webpage),
         }]
diff --git a/youtube_dl/extractor/traileraddict.py b/youtube_dl/extractor/traileraddict.py
index 9dd26c163..324bb6231 100644
--- a/youtube_dl/extractor/traileraddict.py
+++ b/youtube_dl/extractor/traileraddict.py
@@ -24,11 +24,8 @@ def _real_extract(self, url):
                 webpage, 'video title').replace(' - Trailer Addict','')
         view_count = self._search_regex(r'Views: (.+?)<br />',
                 webpage, 'Views Count')
-        description = self._search_regex(r'<meta property="og:description" content="(.+?)" />',
-                webpage, 'video description')
-        video_id = self._search_regex(r'<meta property="og:video" content="(.+?)" />',
-                webpage, 'Video id').split('=')[1]
-        
+        video_id = self._og_search_property('video', webpage, 'Video id').split('=')[1]
+
         info_url = "http://www.traileraddict.com/fvar.php?tid=%s" %(str(video_id))
         info_webpage = self._download_webpage(info_url, video_id , "Downloading the info webpage")
         
@@ -44,6 +41,6 @@ def _real_extract(self, url):
             'ext'         : ext,
             'title'       : title,
             'thumbnail'   : thumbnail_url,
-            'description' : description,
+            'description' : self._og_search_description(webpage),
             'view_count'  : view_count,
         }]
diff --git a/youtube_dl/extractor/tutv.py b/youtube_dl/extractor/tutv.py
index fcaa6ac01..4e404fbf5 100644
--- a/youtube_dl/extractor/tutv.py
+++ b/youtube_dl/extractor/tutv.py
@@ -22,8 +22,6 @@ def _real_extract(self, url):
         video_id = mobj.group('id')
 
         webpage = self._download_webpage(url, video_id)
-        title = self._html_search_regex(
-            r'<meta property="og:title" content="(.*?)">', webpage, u'title')
         internal_id = self._search_regex(r'codVideo=([0-9]+)', webpage, u'internal video ID')
 
         data_url = u'http://tu.tv/flvurl.php?codVideo=' + str(internal_id)
@@ -36,6 +34,6 @@ def _real_extract(self, url):
             'id': internal_id,
             'url': video_url,
             'ext': ext,
-            'title': title,
+            'title': self._og_search_title(webpage),
         }
         return [info]
diff --git a/youtube_dl/extractor/vine.py b/youtube_dl/extractor/vine.py
index bdd3522eb..c4ec1f06f 100644
--- a/youtube_dl/extractor/vine.py
+++ b/youtube_dl/extractor/vine.py
@@ -27,12 +27,6 @@ def _real_extract(self, url):
         video_url = self._html_search_regex(r'<meta property="twitter:player:stream" content="(.+?)"',
             webpage, u'video URL')
 
-        video_title = self._html_search_regex(r'<meta property="og:title" content="(.+?)"',
-            webpage, u'title')
-
-        thumbnail = self._html_search_regex(r'<meta property="og:image" content="(.+?)(\?.*?)?"',
-            webpage, u'thumbnail', fatal=False)
-
         uploader = self._html_search_regex(r'<div class="user">.*?<h2>(.+?)</h2>',
             webpage, u'uploader', fatal=False, flags=re.DOTALL)
 
@@ -40,7 +34,7 @@ def _real_extract(self, url):
             'id':        video_id,
             'url':       video_url,
             'ext':       'mp4',
-            'title':     video_title,
-            'thumbnail': thumbnail,
+            'title':     self._og_search_title(webpage),
+            'thumbnail': self._og_search_thumbnail(webpage),
             'uploader':  uploader,
         }]