diff -r c3d098d6fafa -r e120c24b89e2 app/soc/logic/feed.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/soc/logic/feed.py	Sat Sep 13 22:00:51 2008 +0000
@@ -0,0 +1,39 @@
+#!/usr/bin/python2.5
+#
+# Copyright 2008 the Melange authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Feeds helpers functions.
+"""
+
+__authors__ = [
+  '"Pawel Solyga" <pawel.solyga@gmail.com>',
+  ]
+
+from google.appengine.api import urlfetch
+from soc.utils import feedparser
+
+def isFeedURLValid(feed_url=None):
+  """Returns True if provided url is valid ATOM or RSS.
+
+  Args:
+    feed_url: ATOM or RSS feed url
+  """
+  if feed_url:
+    result = urlfetch.fetch(feed_url)
+    if result.status_code == 200:
+      parsed_feed = feedparser.parse(result.content)
+      if parsed_feed.version and (parsed_feed.version != ''):
+        return True
+  return False
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