Mercurial > libervia-backend

annotate src/plugins/plugin_misc_ip.py @ 2498:d6de69da3dd4

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core (client): component improvments: - renamed component boolean to is_component for more clarity - profileConnected/profileDisconnected don't use a suffix anymore, it's called for both client and component. To check for there, the is_component boolean is enough - fixed dependencies handling - componentStart is not mandatory anymore, as a component can just be used with its handler
author Goffi <goffi@goffi.org>
date Wed, 28 Feb 2018 18:28:39 +0100
parents e2a7bb875957
children 67cc54b01a12
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1934
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for IP address discovery
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5 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _, D_
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21 from sat.core.constants import Const as C
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22 from sat.core.log import getLogger
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23 log = getLogger(__name__)
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24 from sat.tools import xml_tools
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25 from twisted.web import client as webclient
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26 from twisted.web import error as web_error
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27 from twisted.internet import defer
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28 from twisted.internet import reactor
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29 from twisted.internet import protocol
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30 from twisted.internet import endpoints
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31 from twisted.internet import error as internet_error
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32 from zope.interface import implements
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33 from wokkel import disco, iwokkel
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34 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
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35 from twisted.words.protocols.jabber.error import StanzaError
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36 import urlparse
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37 try:
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38 import netifaces
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39 except ImportError:
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40 log.warning(u"netifaces is not available, it help discovering IPs, you can install it on https://pypi.python.org/pypi/netifaces")
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41 netifaces = None
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42
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43
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44 PLUGIN_INFO = {
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45 C.PI_NAME: "IP discovery",
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46 C.PI_IMPORT_NAME: "IP",
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47 C.PI_TYPE: C.PLUG_TYPE_MISC,
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48 C.PI_PROTOCOLS: ["XEP-0279"],
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49 C.PI_RECOMMENDATIONS: ["NAT-PORT"],
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50 C.PI_MAIN: "IPPlugin",
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51 C.PI_HANDLER: "yes",
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52 C.PI_DESCRIPTION: _("""This plugin help to discover our external IP address.""")
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53 }
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54
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55 # TODO: GET_IP_PAGE should be configurable in sat.conf
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56 GET_IP_PAGE = "http://salut-a-toi.org/whereami/" # This page must only return external IP of the requester
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57 GET_IP_LABEL = D_(u"Allow external get IP")
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58 GET_IP_CATEGORY = "General"
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59 GET_IP_NAME = "allow_get_ip"
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60 GET_IP_CONFIRM_TITLE = D_(u"Confirm external site request")
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61 GET_IP_CONFIRM = D_(u"""To facilitate data transfer, we need to contact a website.
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62 A request will be done on {page}
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63 That means that administrators of {domain} can know that you use "{app_name}" and your IP Address.
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64
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65 IP address is an identifier to locate you on Internet (similar to a phone number).
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66
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67 Do you agree to do this request ?
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68 """).format(
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69 page = GET_IP_PAGE,
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70 domain = urlparse.urlparse(GET_IP_PAGE).netloc,
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71 app_name = C.APP_NAME)
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72 NS_IP_CHECK = "urn:xmpp:sic:1"
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73
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74 PARAMS = """
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75 <params>
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76 <general>
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77 <category name="{category}">
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78 <param name="{name}" label="{label}" type="bool" />
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79 </category>
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80 </general>
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81 </params>
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82 """.format(category=GET_IP_CATEGORY, name=GET_IP_NAME, label=GET_IP_LABEL)
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83
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84
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85 class IPPlugin(object):
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86 # TODO: refresh IP if a new connection is detected
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87 # TODO: manage IPv6 when implemented in SàT
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88
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89 def __init__(self, host):
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90 log.info(_("plugin IP discovery initialization"))
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91 self.host = host
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92 host.memory.updateParams(PARAMS)
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93
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94 # NAT-Port
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95 try:
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96 self._nat = host.plugins['NAT-PORT']
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97 except KeyError:
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98 log.debug(u"NAT port plugin not available")
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99 self._nat = None
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100
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101 # XXX: cache is kept until SàT is restarted
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102 # if IP may have changed, use self.refreshIP
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103 self._external_ip_cache = None
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104 self._local_ip_cache = None
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105
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106 def getHandler(self, client):
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107 return IPPlugin_handler()
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108
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109 def refreshIP(self):
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110 # FIXME: use a trigger instead ?
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111 self._external_ip_cache = None
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112 self._local_ip_cache = None
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113
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114 def _externalAllowed(self, client):
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115 """Return value of parameter with autorisation of user to do external requests
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116
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117 if parameter is not set, a dialog is shown to use to get its confirmation, and parameted is set according to answer
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118 @return (defer.Deferred[bool]): True if external request is autorised
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119 """
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120 allow_get_ip = self.host.memory.params.getParamA(GET_IP_NAME, GET_IP_CATEGORY, use_default=False)
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121
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122 if allow_get_ip is None:
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123 # we don't have autorisation from user yet to use get_ip, we ask him
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124 def setParam(allowed):
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125 # FIXME: we need to use boolConst as setParam only manage str/unicode
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126 # need to be fixed when params will be refactored
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127 self.host.memory.setParam(GET_IP_NAME, C.boolConst(allowed), GET_IP_CATEGORY)
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128 return allowed
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129 d = xml_tools.deferConfirm(self.host, _(GET_IP_CONFIRM), _(GET_IP_CONFIRM_TITLE), profile=client.profile)
1537
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parents: 1534
diff changeset
130 d.addCallback(setParam)
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diff changeset
131 return d
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132
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
133 return defer.succeed(allow_get_ip)
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parents: 1534
diff changeset
134
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
135 def _filterAddresse(self, ip_addr):
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
136 """Filter acceptable addresses
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Goffi <goffi@goffi.org>
parents: 1534
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137
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
138 For now, just remove IPv4 local addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
139 @param ip_addr(str): IP addresse
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
140 @return (bool): True if addresse is acceptable
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
141 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
142 return not ip_addr.startswith('127.')
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
143
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
144 def _insertFirst(self, addresses, ip_addr):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
145 """Insert ip_addr as first item in addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
146
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
147 @param ip_addr(str): IP addresse
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
148 @param addresses(list): list of IP addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
149 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
150 if ip_addr in addresses:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
151 if addresses[0] != ip_addr:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
152 addresses.remove(ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
153 addresses.insert(0, ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
154 else:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
155 addresses.insert(0, ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
156
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
157 def _getIPFromExternal(self, ext_url):
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
158 """Get local IP by doing a connection on an external url
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
159
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
160 @param ext_utl(str): url to connect to
1555
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Goffi <goffi@goffi.org>
parents: 1537
diff changeset
161 @return (D(str)): return local IP
1537
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
162 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
163 url = urlparse.urlparse(ext_url)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
164 port = url.port
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
165 if port is None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
166 if url.scheme=='http':
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
167 port = 80
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
168 elif url.scheme=='https':
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
169 port = 443
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
170 else:
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
171 log.error(u"Unknown url scheme: {}".format(url.scheme))
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
172 defer.returnValue(None)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
173 if url.hostname is None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
174 log.error(u"Can't find url hostname for {}".format(GET_IP_PAGE))
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
175
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
176 point = endpoints.TCP4ClientEndpoint(reactor, url.hostname, port)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
177 def gotConnection(p):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
178 local_ip = p.transport.getHost().host
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
179 p.transport.loseConnection()
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
180 return local_ip
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
181
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
182 d = endpoints.connectProtocol(point, protocol.Protocol())
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
183 d.addCallback(gotConnection)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
184 return d
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
185
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
186 @defer.inlineCallbacks
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
187 def getLocalIPs(self, client):
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
188 """Try do discover local area network IPs
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
189
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
190 @return (deferred): list of lan IP addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
191 if there are several addresses, the one used with the server is put first
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
192 if no address is found, localhost IP will be in the list
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
193 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
194 # TODO: manage permission requesting (e.g. for UMTS link)
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
195 if self._local_ip_cache is not None:
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
196 defer.returnValue(self._local_ip_cache)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
197 addresses = []
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
198 localhost = ['127.0.0.1']
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
199
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
200 # we first try our luck with netifaces
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
201 if netifaces is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
202 addresses = []
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
203 for interface in netifaces.interfaces():
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
204 if_addresses = netifaces.ifaddresses(interface)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
205 try:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
206 inet_list = if_addresses[netifaces.AF_INET]
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
207 except KeyError:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
208 continue
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
209 for data in inet_list:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
210 addresse = data['addr']
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
211 if self._filterAddresse(addresse):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
212 addresses.append(addresse)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
213
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
214 # then we use our connection to server
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
215 ip = client.xmlstream.transport.getHost().host
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
216 if self._filterAddresse(ip):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
217 self._insertFirst(addresses, ip)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
218 defer.returnValue(addresses)
1534
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parents:
diff changeset
219
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
220 # if server is local, we try with NAT-Port
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
221 if self._nat is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
222 nat_ip = yield self._nat.getIP(local=True)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
223 if nat_ip is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
224 self._insertFirst(addresses, nat_ip)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
225 defer.returnValue(addresses)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
226
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
227 if addresses:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
228 defer.returnValue(addresses)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
229
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
230 # still not luck, we need to contact external website
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
231 allow_get_ip = yield self._externalAllowed(client)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
232
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
233 if not allow_get_ip:
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
234 defer.returnValue(addresses or localhost)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
235
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
236 try:
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
237 ip_tuple = yield self._getIPFromExternal(GET_IP_PAGE)
1566
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
238 except (internet_error.DNSLookupError, internet_error.TimeoutError):
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
239 log.warning(u"Can't access Domain Name System")
1576
d5f59ba166fe plugins IP: getLocalIPs now return localhost IP instead of an empty list if no non-localhost ip can be found
Goffi <goffi@goffi.org>
parents: 1566
diff changeset
240 defer.returnValue(addresses or localhost)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
241 self._insertFirst(addresses, ip_tuple.local)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
242 defer.returnValue(addresses)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
243
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
244 @defer.inlineCallbacks
2489
e2a7bb875957 plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
245 def getExternalIP(self, client):
1534
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 """Try to discover external IP
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
247
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 @return (deferred): external IP address or None if it can't be discovered
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Goffi <goffi@goffi.org>
parents:
diff changeset
249 """
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
250 if self._external_ip_cache is not None:
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
251 defer.returnValue(self._external_ip_cache)
1534
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
252
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2145
diff changeset
253
1566
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
254 # we first try with XEP-0279
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2145
diff changeset
255 ip_check = yield self.host.hasFeature(client, NS_IP_CHECK)
1668
a9e86f660653 plugin ip: fixed ip check (XEP-0279) use
Goffi <goffi@goffi.org>
parents: 1576
diff changeset
256 if ip_check:
1566
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
257 log.debug(u"Server IP Check available, we use it to retrieve our IP")
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
258 iq_elt = client.IQ("get")
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
259 iq_elt.addElement((NS_IP_CHECK, 'address'))
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
260 try:
1668
a9e86f660653 plugin ip: fixed ip check (XEP-0279) use
Goffi <goffi@goffi.org>
parents: 1576
diff changeset
261 result_elt = yield iq_elt.send()
1566
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
262 address_elt = result_elt.elements(NS_IP_CHECK, 'address').next()
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
263 ip_elt = address_elt.elements(NS_IP_CHECK,'ip').next()
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
264 except StopIteration:
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
265 log.warning(u"Server returned invalid result on XEP-0279 request, we ignore it")
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266 except StanzaError as e:
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267 log.warning(u"error while requesting ip to server: {}".format(e))
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268 else:
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269 # FIXME: server IP may not be the same as external IP (server can be on local machine or network)
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270 # IP should be checked to see if we have a local one, and rejected in this case
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271 external_ip = str(ip_elt)
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272 log.debug(u"External IP found: {}".format(external_ip))
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273 self._external_ip_cache = external_ip
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274 defer.returnValue(self._external_ip_cache)
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275
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276 # then with NAT-Port
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277 if self._nat is not None:
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278 nat_ip = yield self._nat.getIP()
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279 if nat_ip is not None:
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280 self._external_ip_cache = nat_ip
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281 defer.returnValue(nat_ip)
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282
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283 # and finally by requesting external website
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284 allow_get_ip = yield self._externalAllowed(client)
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285 try:
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286 ip = (yield webclient.getPage(GET_IP_PAGE)) if allow_get_ip else None
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287 except (internet_error.DNSLookupError, internet_error.TimeoutError):
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288 log.warning(u"Can't access Domain Name System")
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289 ip = None
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290 except web_error.Error as e:
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291 log.warning(u"Error while retrieving IP on {url}: {message}".format(url=GET_IP_PAGE, message=e))
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292 ip = None
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293 else:
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294 self._external_ip_cache = ip
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295 defer.returnValue(ip)
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296
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297
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298 class IPPlugin_handler(XMPPHandler):
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299 implements(iwokkel.IDisco)
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300
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301 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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302 return [disco.DiscoFeature(NS_IP_CHECK)]
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303
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304 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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305 return []