mirror of
https://github.com/Mikaela/Limnoria.git
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137 lines
4.4 KiB
Python
137 lines
4.4 KiB
Python
###
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# Copyright (c) 2002-2005, Jeremiah Fincher
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# Copyright (c) 2011, 2013, James McCoy
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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Simple utility modules.
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"""
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import re
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import socket
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from .web import _ipAddr, _domain
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emailRe = re.compile(r"^(\w&.+-]+!)*[\w&.+-]+@(%s|%s)$" % (_domain, _ipAddr),
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re.I)
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def getAddressFromHostname(host, port=None, attempt=0):
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addrinfo = socket.getaddrinfo(host, port)
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addresses = []
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for (family, socktype, proto, canonname, sockaddr) in addrinfo:
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if sockaddr[0] not in addresses:
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addresses.append(sockaddr[0])
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return addresses[attempt % len(addresses)]
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def getSocket(host, port=None, socks_proxy=None, vhost=None, vhostv6=None):
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"""Returns a socket of the correct AF_INET type (v4 or v6) in order to
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communicate with host.
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"""
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if not socks_proxy:
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addrinfo = socket.getaddrinfo(host, port)
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host = addrinfo[0][4][0]
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if socks_proxy:
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import socks
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s = socks.socksocket()
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hostname, port = socks_proxy.rsplit(':', 1)
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s.setproxy(socks.PROXY_TYPE_SOCKS5, hostname, int(port),
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rdns=True)
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return s
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import supybot.conf as conf
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if isIPV4(host):
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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if not vhost:
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vhost = conf.supybot.protocols.irc.vhost()
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if vhost:
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s.bind((vhost, 0))
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return s
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elif isIPV6(host):
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s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
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if not vhostv6:
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vhostv6 = conf.supybot.protocols.irc.vhostv6()
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if vhostv6:
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s.bind((vhostv6, 0))
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return s
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else:
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raise socket.error('Something wonky happened.')
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def isIP(s):
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"""Returns whether or not a given string is an IP address.
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>>> isIP('255.255.255.255')
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1
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>>> isIP('::1')
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0
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"""
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return isIPV4(s) or isIPV6(s)
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def isIPV4(s):
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"""Returns whether or not a given string is an IPV4 address.
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>>> isIPV4('255.255.255.255')
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1
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>>> isIPV4('abc.abc.abc.abc')
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0
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"""
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try:
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return bool(socket.inet_aton(str(s)))
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except socket.error:
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return False
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def bruteIsIPV6(s):
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if s.count('::') <= 1:
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L = s.split(':')
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if len(L) <= 8:
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for x in L:
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if x:
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try:
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int(x, 16)
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except ValueError:
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return False
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return True
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return False
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def isIPV6(s):
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"""Returns whether or not a given string is an IPV6 address."""
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try:
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if hasattr(socket, 'inet_pton'):
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return bool(socket.inet_pton(socket.AF_INET6, s))
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else:
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return bruteIsIPV6(s)
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except socket.error:
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try:
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socket.inet_pton(socket.AF_INET6, '::')
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except socket.error:
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# We gotta fake it.
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return bruteIsIPV6(s)
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return False
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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