137 lines
4.1 KiB
Python
137 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Enteletaor - https://github.com/cr0hn/enteletaor
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
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# following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
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# following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
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# following disclaimer in the documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
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# products derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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"""
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This file contains monkey patches for
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"""
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from __future__ import absolute_import
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def new_transport_init(self, host, connect_timeout):
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import errno
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import re
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import socket
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import ssl
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# Jython does not have this attribute
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try:
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from socket import SOL_TCP
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except ImportError: # pragma: no cover
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from socket import IPPROTO_TCP as SOL_TCP # noqa
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try:
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from ssl import SSLError
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except ImportError:
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class SSLError(Exception): # noqa
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pass
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from struct import pack, unpack
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from amqp.exceptions import UnexpectedFrame
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from amqp.utils import get_errno, set_cloexec
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_UNAVAIL = errno.EAGAIN, errno.EINTR, errno.ENOENT
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AMQP_PORT = 5672
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EMPTY_BUFFER = bytes()
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# Yes, Advanced Message Queuing Protocol Protocol is redundant
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AMQP_PROTOCOL_HEADER = 'AMQP\x01\x01\x00\x09'.encode('latin_1')
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# Match things like: [fe80::1]:5432, from RFC 2732
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IPV6_LITERAL = re.compile(r'\[([\.0-9a-f:]+)\](?::(\d+))?')
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# --------------------------------------------------------------------------
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# __init__ content:
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# --------------------------------------------------------------------------
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self.connected = True
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msg = None
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port = AMQP_PORT
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m = IPV6_LITERAL.match(host)
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if m:
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host = m.group(1)
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if m.group(2):
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port = int(m.group(2))
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else:
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if ':' in host:
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host, port = host.rsplit(':', 1)
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port = int(port)
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self.sock = None
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last_err = None
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for res in socket.getaddrinfo(host, port, 0,
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socket.SOCK_STREAM, SOL_TCP):
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af, socktype, proto, canonname, sa = res
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try:
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self.sock = socket.socket(af, socktype, proto)
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try:
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set_cloexec(self.sock, True)
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except NotImplementedError:
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pass
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self.sock.settimeout(connect_timeout)
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self.sock.connect(sa)
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except socket.error as exc:
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msg = exc
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self.sock.close()
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self.sock = None
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last_err = msg
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continue
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break
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if not self.sock:
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# Didn't connect, return the most recent error message
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raise socket.error(last_err)
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try:
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# self.sock.settimeout(None)
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self.sock.setsockopt(SOL_TCP, socket.TCP_NODELAY, 1)
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self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
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self._setup_transport()
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self._write(AMQP_PROTOCOL_HEADER)
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except (OSError, IOError, socket.error) as exc:
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if get_errno(exc) not in _UNAVAIL:
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self.connected = False
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raise
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# --------------------------------------------------------------------------
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# amqlib
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# --------------------------------------------------------------------------
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def patch_transport():
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"""
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This function path transport constructor to fix timeout in sockets
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"""
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from amqp.transport import _AbstractTransport
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_AbstractTransport.__init__ = new_transport_init
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