def _populate_bliptv_data(rss, metadata):
"""Parse bliptv video rss and pull out the metadata information.
>>> rss = '''<?xml version="1.0" ?>
... <rss version="2.0"
... xmlns:media="http://search.yahoo.com/mrss/"
... xmlns:blip="http://blip.tv/dtd/blip/1.0">
... <channel>
... <item>
... <title>
... Random Video
... </title>
... <blip:user>someuser</blip:user>
... <blip:puredescription>
... This is a random description.
... </blip:puredescription>
... <media:keywords>abc, def</media:keywords>
... <media:thumbnail url="http://someurl.com/somefile.jpg" />
... </item>
... </channel>
... </rss>
... '''
>>> metadata = VideoMetadata()
>>> _populate_bliptv_data(rss, metadata)
>>> metadata.title
u'Random Video'
>>> metadata.description
u'This is a random description.'
>>> metadata.tags
set([u'abc', u'def'])
>>> metadata.thumbnail_url
u'http://someurl.com/somefile.jpg'
>>> metadata.author
u'someuser'
"""
doc = minidom.parseString(rss)
metadata.thumbnail_url = xpath_attr( \
doc, u'rss/channel/item/media:thumbnail', 'url')
metadata.title = xpath_text( \
doc, u'rss/channel/item/title')
metadata.author = xpath_text( \
doc, u'rss/channel/item/blip:user')
metadata.description = xpath_text( \
doc, u'rss/channel/item/blip:puredescription')
keywordtext = xpath_text( \
doc, u'rss/channel/item/media:keywords') or ''
metadata.tags = set([x.strip()
for x in keywordtext.split(',') if x.strip()])
def _youtube_metadata_lookup(xml):
"""Parse the given xml and get appropriate metadata.
>>> xml = '''<?xml version="1.0" ?>
... <ut_response status="ok">
... <video_details>
... <author>youtubeuser</author>
... <title>Random Title</title>
... <rating_avg>3.25</rating_avg>
... <rating_count>10</rating_count>
... <tags>california trip redwoods</tags>
... <description>Random description.</description>
... <update_time>1129803584</update_time>
... <view_count>7</view_count>
... <upload_time>1127760809</upload_time>
... <length_seconds>8</length_seconds>
... <recording_date>None</recording_date>
... <recording_location/>
... <recording_country/>
... <thumbnail_url>http://blah.com/default.jpg</thumbnail_url>
... </video_details>
... </ut_response>'''
>>> data = _youtube_metadata_lookup(xml)
>>> data.author
u'youtubeuser'
>>> data.title
u'Random Title'
>>> data.description
u'Random description.'
>>> data.tags
[u'california', u'trip', u'redwoods']
>>> data.thumbnail_url
u'http://blah.com/default.jpg'
>>> data.duration
8.0
"""
try:
doc = minidom.parseString(xml)
except expat.ExpatError:
logger.exception('Error while trying to parse RSS XML - "%s"' % xml)
return None
metadata = VideoMetadata()
metadata.title = xpath_text(doc, u'ut_response/video_details/title')
metadata.author = xpath_text(doc, u'ut_response/video_details/author')
metadata.description = xpath_text(\
doc, u'ut_response/video_details/description')
metadata.thumbnail_url = xpath_text(\
doc, u'ut_response/video_details/thumbnail_url')
metadata.tags = xpath_text(\
doc, u'ut_response/video_details/tags').split(' ')
duration = xpath_text( \
doc, u'ut_response/video_details/length_seconds')
if duration is not None and duration.strip() != '':
try:
metadata.duration = float(duration)
except:
# probably wasn't an int, ignoring
pass
return metadata
def _populate_google_data(rss, metadata):
"""Parse google video rss and pull out the metadata information.
>>> rss = '''<?xml version="1.0" ?>
... <rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/" xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/">
... <channel>
... <title>
... Google Video - The Big Experiment & Rocky
... </title>
... <link>
... http://video.google.com/videoplay?docid=-274981837129821058
... </link>
... <item>
... <author>
... Jon Doe
... </author>
... <media:group>
... <media:title>
... The Big Experiment & Rocky
... </media:title>
... <media:description>
... hello world
...
... Keywords: eepybird eepy bird
... </media:description>
... <media:thumbnail url="http://video.google.com/somepath.jpg" width="320"/>
... <media:content duration="23" />
... </media:group>
... </item>
... </channel>
... </rss>
... '''
>>> metadata = VideoMetadata()
>>> _populate_google_data(rss, metadata)
>>> metadata.title
u'The Big Experiment & Rocky'
>>> metadata.description
u'hello world'
>>> metadata.tags
set([u'eepybird', u'bird', u'eepy'])
>>> metadata.thumbnail_url
u'http://video.google.com/somepath.jpg'
>>> metadata.author
u'Jon Doe'
>>> metadata.duration
23.0
"""
doc = minidom.parseString(rss)
metadata.thumbnail_url = xpath_attr( \
doc, u'rss/channel/item/media:group/media:thumbnail', 'url')
metadata.title = xpath_text( \
doc, u'rss/channel/item/media:group/media:title')
metadata.author = xpath_text( \
doc, u'rss/channel/item/author')
duration = xpath_attr( \
doc, u'rss/channel/item/media:group/media:content', 'duration')
if duration is not None and duration.strip() != '':
try:
metadata.duration = float(duration)
except:
# probably wasn't an int, ignoring
pass
text = xpath_text( \
doc, u'rss/channel/item/media:group/media:description')
description = None
tags = None
if text:
description = text
pos = description.find('Keywords:')
if pos > -1 and len(description) > pos + 9:
keywordblurb = description[pos+9:]
tags = set([x.strip() for x in keywordblurb.split(' ')
if x.strip()])
if pos > -1:
description = description[:pos]
description = description.strip()
metadata.description = description
metadata.tags = tags
