Replace common module with validate module. Move validation function from feed module to validate module and remove feed.py. Correct any usage of validation functions from common and feed modules into validate module.
Patch by: Pawel Solyga
Review by: to-be-reviewed
#!/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.
"""Common validation helper functions.
"""
__authors__ = [
'"Pawel Solyga" <pawel.solyga@gmail.com>',
]
import re
from google.appengine.api import urlfetch
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
LINKNAME_PATTERN = r'''(?x)
^
[0-9a-z] # start with ASCII digit or lowercase
(
[0-9a-z] # additional ASCII digit or lowercase
| # -OR-
_[0-9a-z] # underscore and ASCII digit or lowercase
)* # zero or more of OR group
$
'''
LINKNAME_REGEX = re.compile(LINKNAME_PATTERN)
def isLinkNameFormatValid(link_name):
"""Returns True if link_name is in a valid format.
Args:
link_name: link name used in URLs for identification
"""
if LINKNAME_REGEX.match(link_name):
return True
return False