libervia-backend: src/plugins/plugin_misc

annotate src/plugins/plugin_misc_nat-port.py @ 2378:3704cb959ae8

plugin schema: deserialise is now the last kw argument

author	Goffi <goffi@goffi.org>
date	Mon, 16 Oct 2017 07:23:09 +0200
parents	33c8c4973743
children	8b37a62336c3

rev	line source
1934 2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang Goffi <goffi@goffi.org> parents: 1766 diff changeset	1 #!/usr/bin/env python2
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	2 # -- coding: utf-8 --
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	3
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	4 # SAT plugin for NAT port mapping
1766 d17772b0fe22 copyright update Goffi <goffi@goffi.org> parents: 1562 diff changeset	5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org)
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	6
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	7 # This program is free software: you can redistribute it and/or modify
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	8 # it under the terms of the GNU Affero General Public License as published by
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	9 # the Free Software Foundation, either version 3 of the License, or
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	10 # (at your option) any later version.
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	11
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	12 # This program is distributed in the hope that it will be useful,
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	15 # GNU Affero General Public License for more details.
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	16
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	17 # You should have received a copy of the GNU Affero General Public License
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	19
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	20 from sat.core.i18n import _
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	21 from sat.core.constants import Const as C
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	22 from sat.core.log import getLogger
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	23 log = getLogger(__name__)
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	24 from sat.core import exceptions
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	25 from twisted.internet import threads
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	26 from twisted.internet import defer
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	27 from twisted.python import failure
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	28 import threading
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	29
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	30 try:
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	31 import miniupnpc
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	32 except ImportError:
1562 7d91dff71067 plugin NAT Port: added instruction with pip when miniupnpc is missing Goffi <goffi@goffi.org> parents: 1554 diff changeset	33 raise exceptions.MissingModule(u"Missing module MiniUPnPc, please download/install it (and its Python binding) at http://miniupnp.free.fr/ (or use pip install miniupnpc)")
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	34
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	35
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	36 PLUGIN_INFO = {
2145 33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	37 C.PI_NAME: "NAT port mapping",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	38 C.PI_IMPORT_NAME: "NAT-PORT",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	39 C.PI_TYPE: C.PLUG_TYPE_MISC,
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	40 C.PI_MAIN: "NatPort",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	41 C.PI_HANDLER: "no",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO Goffi <goffi@goffi.org> parents: 1934 diff changeset	42 C.PI_DESCRIPTION: _("""Automatic NAT port mapping using UPnP"""),
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	43 }
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	44
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	45 STARTING_PORT = 6000 # starting point to automatically find a port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	46 DEFAULT_DESC = u'SaT port mapping' # we don't use "à" here as some bugged NAT don't manage charset correctly
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	47
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	48
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	49 class MappingError(Exception):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	50 pass
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	51
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	52
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	53 class NatPort(object):
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	54 # TODO: refresh data if a new connection is detected (see plugin_misc_ip)
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	55
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	56 def __init__(self, host):
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	57 log.info(_("plugin NAT Port initialization"))
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	58 self.host = host
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	59 self._external_ip = None
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	60 self._initialised = defer.Deferred()
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	61 self._upnp = miniupnpc.UPnP() # will be None if no device is available
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	62 self._upnp.discoverdelay=200
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	63 self._mutex = threading.Lock() # used to protect access to self._upnp
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	64 self._starting_port_cache = None # used to cache the first available port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	65 self._to_unmap = [] # list of tuples (ext_port, protocol) of ports to unmap on unload
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	66 discover_d = threads.deferToThread(self._discover)
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	67 discover_d.chainDeferred(self._initialised)
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	68 self._initialised.addErrback(self._init_failed)
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	69
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	70 def unload(self):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	71 if self._to_unmap:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	72 log.info(u"Cleaning mapped ports")
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	73 return threads.deferToThread(self._unmapPortsBlocking)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	74
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	75 def _init_failed(self, failure_):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	76 e = failure_.trap(exceptions.NotFound, exceptions.FeatureNotFound)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	77 if e == exceptions.FeatureNotFound:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	78 log.info(u"UPnP-IGD seems to be not activated on the device")
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	79 else:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	80 log.info(u"UPnP-IGD not available")
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	81 self._upnp = None
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	82
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	83 def _discover(self):
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	84 devices = self._upnp.discover()
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	85 if devices:
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	86 log.info(u"{nb} UPnP-IGD device(s) found".format(nb=devices))
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	87 else:
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	88 log.info(u"Can't find UPnP-IGD device on the local network")
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	89 raise failure.Failure(exceptions.NotFound())
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	90 self._upnp.selectigd()
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	91 try:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	92 self._external_ip = self._upnp.externalipaddress()
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	93 except Exception:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	94 raise failure.Failure(exceptions.FeatureNotFound())
1536 04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	95
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	96 def getIP(self, local=False):
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	97 """Return IP address found with UPnP-IGD
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	98
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	99 @param local(bool): True to get external IP address, False to get local network one
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	100 @return (None, str): found IP address, or None of something got wrong
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	101 """
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	102 def getIP(dummy):
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	103 if self._upnp is None:
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	104 return None
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	105 # lanaddr can be the empty string if not found,
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	106 # we need to return None in this case
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	107 return (self._upnp.lanaddr or None) if local else self._external_ip
04a13d9ae265 plugin nat-port: NAT port first draft: Goffi <goffi@goffi.org> parents: diff changeset	108 return self._initialised.addCallback(getIP)
1554 e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	109
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	110 def _unmapPortsBlocking(self):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	111 """Unmap ports mapped in this session"""
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	112 self._mutex.acquire()
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	113 try:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	114 for port, protocol in self._to_unmap:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	115 log.info(u"Unmapping port {}".format(port))
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	116 unmapping = self._upnp.deleteportmapping(
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	117 # the last parameter is remoteHost, we don't use it
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	118 port, protocol, '')
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	119
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	120 if not unmapping:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	121 log.error(u"Can't unmap port {port} ({protocol})".format(
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	122 port=port, protocol=protocol))
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	123 del self._to_unmap[:]
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	124 finally:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	125 self._mutex.release()
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	126
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	127 def _mapPortBlocking(self, int_port, ext_port, protocol, desc):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	128 """Internal blocking method to map port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	129
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	130 @param int_port(int): internal port to use
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	131 @param ext_port(int): external port to use, or None to find one automatically
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	132 @param protocol(str): 'TCP' or 'UDP'
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	133 @param desc(str): description of the mapping
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	134 @param return(int, None): external port used in case of success, otherwise None
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	135 """
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	136 # we use mutex to avoid race condition if 2 threads
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	137 # try to acquire a port at the same time
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	138 self._mutex.acquire()
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	139 try:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	140 if ext_port is None:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	141 # find a free port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	142 starting_port = self._starting_port_cache
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	143 ext_port = STARTING_PORT if starting_port is None else starting_port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	144 ret = self._upnp.getspecificportmapping(ext_port, protocol)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	145 while ret != None and ext_port < 65536:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	146 ext_port += 1
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	147 ret = self._upnp.getspecificportmapping(ext_port, protocol)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	148 if starting_port is None:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	149 # XXX: we cache the first successfuly found external port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	150 # to avoid testing again the first series the next time
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	151 self._starting_port_cache = ext_port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	152
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	153 mapping = self._upnp.addportmapping(
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	154 # the last parameter is remoteHost, we don't use it
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	155 ext_port, protocol, self._upnp.lanaddr, int_port, desc, '')
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	156
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	157 if not mapping:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	158 raise MappingError
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	159 else:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	160 self._to_unmap.append((ext_port, protocol))
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	161 finally:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	162 self._mutex.release()
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	163
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	164 return ext_port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	165
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	166 def mapPort(self, int_port, ext_port=None, protocol='TCP', desc=DEFAULT_DESC):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	167 """Add a port mapping
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	168
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	169 @param int_port(int): internal port to use
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	170 @param ext_port(int,None): external port to use, or None to find one automatically
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	171 @param protocol(str): 'TCP' or 'UDP'
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	172 @param desc(unicode): description of the mapping
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	173 Some UPnP IGD devices have broken encoding. It's probably a good idea to avoid non-ascii chars here
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	174 @return (D(int, None)): external port used in case of success, otherwise None
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	175 """
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	176 if self._upnp is None:
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	177 return defer.succeed(None)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	178 def mappingCb(ext_port):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	179 log.info(u"{protocol} mapping from {int_port} to {ext_port} successful".format(
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	180 protocol = protocol,
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	181 int_port = int_port,
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	182 ext_port = ext_port,
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	183 ))
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	184 return ext_port
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	185 def mappingEb(failure):
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	186 failure.trap(MappingError)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	187 log.warning(u"Can't map internal {int_port}".format(int_port=int_port))
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	188 d = threads.deferToThread(self._mapPortBlocking, int_port, ext_port, protocol, desc)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	189 d.addCallbacks(mappingCb, mappingEb)
e281ed2c21db plugin NAT port: added UPnP IGD mapping + automatic unmapping on backend shut down Goffi <goffi@goffi.org> parents: 1536 diff changeset	190 return d

Mercurial > libervia-backend

annotate src/plugins/plugin_misc_nat-port.py @ 2378:3704cb959ae8