/usr/lib/python2.7/dist-packages/linkcheck/checker/dnsurl.py is in linkchecker 9.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | # -*- coding: iso-8859-1 -*-
# Copyright (C) 2000-2014 Bastian Kleineidam
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
Handle for dns: links.
"""
import socket
from . import urlbase
class DnsUrl (urlbase.UrlBase):
"""
Url link with dns scheme.
"""
def can_get_content (self):
"""
dns: URLs do not have any content
@return: False
@rtype: bool
"""
return False
def check_connection(self):
"""Resolve hostname."""
host = self.urlparts[1]
addresses = socket.getaddrinfo(host, 80, 0, 0, socket.SOL_TCP)
args = {'host': host}
if addresses:
args['ips'] = [x[4][0] for x in addresses]
self.set_result(_('%(host)s resolved to IPs %(ips)s') % args, valid=True)
else:
self.set_result(_('%(host)r could not be resolved') % args, valid=False)
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