mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-12-26 20:52:45 +01:00
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
###
|
|
# Copyright (c) 2002-2005, Jeremiah Fincher
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions, and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions, and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# * Neither the name of the author of this software nor the name of
|
|
# contributors to this software may be used to endorse or promote products
|
|
# derived from this software without specific prior written consent.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
###
|
|
|
|
"""
|
|
Simple utility modules.
|
|
"""
|
|
|
|
import re
|
|
import socket
|
|
|
|
emailRe = re.compile(r"^(\w&.+-]+!)*[\w&.+-]+@"
|
|
r"(([0-9a-z]([0-9a-z-]*[0-9a-z])?\.)[a-z]{2,6}|"
|
|
r"([0-9]{1,3}\.){3}[0-9]{1,3})$", re.I)
|
|
|
|
def getSocket(host):
|
|
"""Returns a socket of the correct AF_INET type (v4 or v6) in order to
|
|
communicate with host.
|
|
"""
|
|
addrinfo = socket.getaddrinfo(host, None)
|
|
host = addrinfo[0][4][0]
|
|
if isIP(host):
|
|
return socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
elif isIPV6(host):
|
|
return socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
|
|
else:
|
|
raise socket.error, 'Something wonky happened.'
|
|
|
|
def isIP(s):
|
|
"""Returns whether or not a given string is an IPV4 address.
|
|
|
|
>>> isIP('255.255.255.255')
|
|
1
|
|
|
|
>>> isIP('abc.abc.abc.abc')
|
|
0
|
|
"""
|
|
try:
|
|
return bool(socket.inet_aton(s))
|
|
except socket.error:
|
|
return False
|
|
|
|
def bruteIsIPV6(s):
|
|
if s.count('::') <= 1:
|
|
L = s.split(':')
|
|
if len(L) <= 8:
|
|
for x in L:
|
|
if x:
|
|
try:
|
|
int(x, 16)
|
|
except ValueError:
|
|
return False
|
|
return True
|
|
return False
|
|
|
|
def isIPV6(s):
|
|
"""Returns whether or not a given string is an IPV6 address."""
|
|
try:
|
|
if hasattr(socket, 'inet_pton'):
|
|
return bool(socket.inet_pton(socket.AF_INET6, s))
|
|
else:
|
|
return bruteIsIPV6(s)
|
|
except socket.error:
|
|
try:
|
|
socket.inet_pton(socket.AF_INET6, '::')
|
|
except socket.error:
|
|
# We gotta fake it.
|
|
return bruteIsIPV6(s)
|
|
return False
|
|
|
|
# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
|