Add an extractor for internetvideoarchive.com videos

It's used by videodetective.com

test/test_utils.py

@@ -20,6 +20,7 @@ from youtube_dl.utils import (
     unified_strdate,
     find_xpath_attr,
     get_meta_content,
+    xpath_with_ns,
 )
 
 if sys.version_info < (3, 0):
@@ -141,5 +142,18 @@ class TestUtil(unittest.TestCase):
         self.assertEqual(get_meta('description'), u'foo & bar')
         self.assertEqual(get_meta('author'), 'Plato')
 
+    def test_xpath_with_ns(self):
+        testxml = u'''<root xmlns:media="http://example.com/">
+            <media:song>
+                <media:author>The Author</media:author>
+                <url>http://server.com/download.mp3</url>
+            </media:song>
+        </root>'''
+        doc = xml.etree.ElementTree.fromstring(testxml)
+        find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))
+        self.assertTrue(find('media:song') is not None)
+        self.assertEqual(find('media:song/media:author').text, u'The Author')
+        self.assertEqual(find('media:song/url').text, u'http://server.com/download.mp3')
+
 if __name__ == '__main__':
     unittest.main()

youtube_dl/extractor/__init__.py

@@ -62,6 +62,7 @@ from .ign import IGNIE, OneUPIE
 from .ina import InaIE
 from .infoq import InfoQIE
 from .instagram import InstagramIE
+from .internetvideoarchive import InternetVideoArchiveIE
 from .jeuxvideo import JeuxVideoIE
 from .jukebox import JukeboxIE
 from .justintv import JustinTVIE

youtube_dl/extractor/internetvideoarchive.py

@@ -0,0 +1,71 @@
+import re
+import xml.etree.ElementTree
+
+from .common import InfoExtractor
+from ..utils import (
+    compat_urlparse,
+    xpath_with_ns,
+    determine_ext,
+)
+
+
+class InternetVideoArchiveIE(InfoExtractor):
+    _VALID_URL = r'https?://video\.internetvideoarchive\.net/flash/players/.*?\?.*?publishedid.*?'
+
+    _TEST = {
+        u'url': u'http://video.internetvideoarchive.net/flash/players/flashconfiguration.aspx?customerid=69249&publishedid=452693&playerid=247',
+        u'file': u'452693.mp4',
+        u'info_dict': {
+            u'title': u'SKYFALL',
+            u'description': u'In SKYFALL, Bond\'s loyalty to M is tested as her past comes back to haunt her. As MI6 comes under attack, 007 must track down and destroy the threat, no matter how personal the cost.',
+            u'duration': 156,
+        },
+    }
+
+    @staticmethod
+    def _build_url(query):
+        return 'http://video.internetvideoarchive.net/flash/players/flashconfiguration.aspx?' + query
+
+    def _real_extract(self, url):
+        query = compat_urlparse.urlparse(url).query
+        query_dic = compat_urlparse.parse_qs(query)
+        video_id = query_dic['publishedid'][0]
+        url = self._build_url(query)
+
+        flashconfiguration_xml = self._download_webpage(url, video_id,
+            u'Downloading flash configuration')
+        flashconfiguration = xml.etree.ElementTree.fromstring(flashconfiguration_xml.encode('utf-8'))
+        file_url = flashconfiguration.find('file').text
+        file_url = file_url.replace('/playlist.aspx', '/mrssplaylist.aspx')
+        info_xml = self._download_webpage(file_url, video_id,
+            u'Downloading video info')
+        info = xml.etree.ElementTree.fromstring(info_xml.encode('utf-8'))
+        item = info.find('channel/item')
+
+        def _bp(p):
+            return xpath_with_ns(p,
+                {'media': 'http://search.yahoo.com/mrss/',
+                'jwplayer': 'http://developer.longtailvideo.com/trac/wiki/FlashFormats'})
+        formats = []
+        for content in item.findall(_bp('media:group/media:content')):
+            attr = content.attrib
+            f_url = attr['url']
+            formats.append({
+                'url': f_url,
+                'ext': determine_ext(f_url),
+                'width': int(attr['width']),
+                'bitrate': int(attr['bitrate']),
+            })
+        formats = sorted(formats, key=lambda f: f['bitrate'])
+
+        info = {
+            'id': video_id,
+            'title': item.find('title').text,
+            'formats': formats,
+            'thumbnail': item.find(_bp('media:thumbnail')).attrib['url'],
+            'description': item.find('description').text,
+            'duration': int(attr['duration']),
+        }
+        # TODO: Remove when #980 has been merged
+        info.update(formats[-1])
+        return info

youtube_dl/utils.py

@@ -230,6 +230,19 @@ else:
                 return f
         return None
 
+# On python2.6 the xml.etree.ElementTree.Element methods don't support
+# the namespace parameter
+def xpath_with_ns(path, ns_map):
+    components = [c.split(':') for c in path.split('/')]
+    replaced = []
+    for c in components:
+        if len(c) == 1:
+            replaced.append(c[0])
+        else:
+            ns, tag = c
+            replaced.append('{%s}%s' % (ns_map[ns], tag))
+    return '/'.join(replaced)
+
 def htmlentity_transform(matchobj):
     """Transforms an HTML entity to a character.