def is_feed(environ, uri):
"""
Return true if content at uri is atom or rss.
"""
response, _ = retrieve_remote(uri, method='HEAD')
content_type = response['content-type']
return 'atom+xml' in content_type or 'rss+xml' in content_type
def get_feed(environ, uri):
"""
Retrieve a feed and parse for tiddlers.
"""
_, content = retrieve_remote(uri)
feed = feedparser.parse(content)
for entry in feed.entries:
yield Tiddler(entry.title, uri)
def get_entry(environ, uri, title):
"""
Get an entry out of a feed as a tiddler.
"""
_, content = retrieve_remote(uri)
feed = feedparser.parse(content)
tiddler = None
for entry in feed.entries:
if entry.title == title:
tiddler = Tiddler(entry.title, uri)
tiddler.text = entry.content[0].value
tiddler.type = entry.content[0].type
return tiddler
raise NoTiddlerError('unable to find tiddler %s in feed %s'
% (title, uri))
