1 #!/usr/bin/python2.5

     2 #

     3 # Copyright 2008 the Melange authors.

     4 #

     5 # Licensed under the Apache License, Version 2.0 (the "License");

     6 # you may not use this file except in compliance with the License.

     7 # You may obtain a copy of the License at

     8 #

     9 #   http://www.apache.org/licenses/LICENSE-2.0

    10 #

    11 # Unless required by applicable law or agreed to in writing, software

    12 # distributed under the License is distributed on an "AS IS" BASIS,

    13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    14 # See the License for the specific language governing permissions and

    15 # limitations under the License.

    16 

    17 """Feeds helpers functions.

    18 """

    19 

    20 __authors__ = [

    21   '"Pawel Solyga" <pawel.solyga@gmail.com>',

    22   ]

    23 

    24 from google.appengine.api import urlfetch

    25 import feedparser

    26 

    27 def isFeedURLValid(feed_url=None):

    28   """Returns True if provided url is valid ATOM or RSS.

    29 

    30   Args:

    31     feed_url: ATOM or RSS feed url

    32   """

    33   if feed_url:

    34     result = urlfetch.fetch(feed_url)

    35     if result.status_code == 200:

    36       parsed_feed = feedparser.parse(result.content)

    37       if parsed_feed.version and (parsed_feed.version != ''):

    38         return True

    39   return False

    40