annotate src/plugins/plugin_misc_ip.py @ 2138:6e509ee853a8

plugin OTR, core; use of new sendMessage + OTR mini refactoring: - new client.sendMessage method is used instead of sendMessageToStream - client.feedback is used in OTR - OTR now add message processing hints and carbon private element as recommanded by XEP-0364. Explicit Message Encryption is still TODO - OTR use the new sendMessageFinish trigger, this has a number of advantages: * there is little risk that OTR is skipped by other plugins (they have to use client.sendMessage as recommanded) * being at the end of the chain, OTR can check and remove any HTML or other leaking elements * OTR doesn't have to skip other plugins anymore, this means that things like delivery receipts are now working with OTR (but because there is not full stanza encryption, they can leak metadata) * OTR can decide to follow storage hint by letting or deleting "history" key
author Goffi <goffi@goffi.org>
date Sun, 05 Feb 2017 15:00:01 +0100
parents a74047906dfd
children 1d3f73e065e1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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) 2009-2016 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 "name": "IP discovery",
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46 "import_name": "IP",
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47 "type": C.PLUG_TYPE_MISC,
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48 "protocols": ["XEP-0279"],
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49 "recommendations": ["NAT-PORT"],
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50 "main": "IPPlugin",
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51 "handler": "yes",
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52 "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, profile):
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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, profile):
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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 @param profile: %(doc_profile)s
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119 @return (defer.Deferred[bool]): True if external request is autorised
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120 """
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121 allow_get_ip = self.host.memory.params.getParamA(GET_IP_NAME, GET_IP_CATEGORY, use_default=False)
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122
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123 if allow_get_ip is None:
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124 # we don't have autorisation from user yet to use get_ip, we ask him
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125 def setParam(allowed):
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126 # FIXME: we need to use boolConst as setParam only manage str/unicode
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127 # need to be fixed when params will be refactored
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128 self.host.memory.setParam(GET_IP_NAME, C.boolConst(allowed), GET_IP_CATEGORY)
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129 return allowed
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diff changeset
130 d = xml_tools.deferConfirm(self.host, _(GET_IP_CONFIRM), _(GET_IP_CONFIRM_TITLE), profile=profile)
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
131 d.addCallback(setParam)
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Goffi <goffi@goffi.org>
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diff changeset
132 return d
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parents: 1534
diff changeset
133
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
134 return defer.succeed(allow_get_ip)
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
135
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
136 def _filterAddresse(self, ip_addr):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
137 """Filter acceptable addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
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diff changeset
138
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
139 For now, just remove IPv4 local addresses
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
140 @param ip_addr(str): IP addresse
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
141 @return (bool): True if addresse is acceptable
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
142 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
143 return not ip_addr.startswith('127.')
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
144
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
145 def _insertFirst(self, addresses, ip_addr):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
146 """Insert ip_addr as first item in addresses
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
147
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Goffi <goffi@goffi.org>
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diff changeset
148 @param ip_addr(str): IP addresse
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
149 @param addresses(list): list of IP addresses
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
150 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
151 if ip_addr in addresses:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
152 if addresses[0] != ip_addr:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
153 addresses.remove(ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
154 addresses.insert(0, ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
155 else:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
156 addresses.insert(0, ip_addr)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
157
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
158 def _getIPFromExternal(self, ext_url):
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
159 """Get local IP by doing a connection on an external url
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
160
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
161 @param ext_utl(str): url to connect to
1555
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parents: 1537
diff changeset
162 @return (D(str)): return local IP
1537
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
163 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
164 url = urlparse.urlparse(ext_url)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
165 port = url.port
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
166 if port is None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
167 if url.scheme=='http':
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
168 port = 80
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
169 elif url.scheme=='https':
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
170 port = 443
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
171 else:
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
172 log.error(u"Unknown url scheme: {}".format(url.scheme))
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
173 defer.returnValue(None)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
174 if url.hostname is None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
175 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
176
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
177 point = endpoints.TCP4ClientEndpoint(reactor, url.hostname, port)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
178 def gotConnection(p):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
179 local_ip = p.transport.getHost().host
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
180 p.transport.loseConnection()
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
181 return local_ip
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
182
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
183 d = endpoints.connectProtocol(point, protocol.Protocol())
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
184 d.addCallback(gotConnection)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
185 return d
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
186
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
187 @defer.inlineCallbacks
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
188 def getLocalIPs(self, profile):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
189 """Try do discover local area network IPs
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
190
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
191 @param profile): %(doc_profile)s
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
192 @return (deferred): list of lan IP addresses
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
193 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
194 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
195 """
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
196 # TODO: manage permission requesting (e.g. for UMTS link)
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eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
197 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
198 defer.returnValue(self._local_ip_cache)
1534
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
199 client = self.host.getClient(profile)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
200 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
201 localhost = ['127.0.0.1']
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
202
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
203 # we first try our luck with netifaces
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
204 if netifaces is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
205 addresses = []
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
206 for interface in netifaces.interfaces():
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
207 if_addresses = netifaces.ifaddresses(interface)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
208 try:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
209 inet_list = if_addresses[netifaces.AF_INET]
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
210 except KeyError:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
211 continue
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
212 for data in inet_list:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
213 addresse = data['addr']
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
214 if self._filterAddresse(addresse):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
215 addresses.append(addresse)
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Goffi <goffi@goffi.org>
parents: 1534
diff changeset
216
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
217 # then we use our connection to server
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
218 ip = client.xmlstream.transport.getHost().host
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
219 if self._filterAddresse(ip):
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
220 self._insertFirst(addresses, ip)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
221 defer.returnValue(addresses)
1534
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Goffi <goffi@goffi.org>
parents:
diff changeset
222
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
223 # 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
224 if self._nat is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
225 nat_ip = yield self._nat.getIP(local=True)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
226 if nat_ip is not None:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
227 self._insertFirst(addresses, nat_ip)
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
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
230 if addresses:
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
231 defer.returnValue(addresses)
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 # still not luck, we need to contact external website
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 allow_get_ip = yield self._externalAllowed(profile)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
235
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
236 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
237 defer.returnValue(addresses or localhost)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
238
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
239 try:
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
240 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
241 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
242 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
243 defer.returnValue(addresses or localhost)
1537
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
244 self._insertFirst(addresses, ip_tuple.local)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
245 defer.returnValue(addresses)
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
246
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
247 @defer.inlineCallbacks
6fa9e8c02c34 plugin IP discovery: better IP discovering:
Goffi <goffi@goffi.org>
parents: 1534
diff changeset
248 def getExternalIP(self, profile):
1534
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
249 """Try to discover external IP
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
250
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
251 @param profile: %(doc_profile)s
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Goffi <goffi@goffi.org>
parents:
diff changeset
252 @return (deferred): external IP address or None if it can't be discovered
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Goffi <goffi@goffi.org>
parents:
diff changeset
253 """
1555
eb8aae35085b plugin ip: local ip cache + DNS error detection
Goffi <goffi@goffi.org>
parents: 1537
diff changeset
254 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
255 defer.returnValue(self._external_ip_cache)
1534
a5e0393a06cd plugin ip, params: plugin IP discovery, first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
256
1566
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
257 # we first try with XEP-0279
1668
a9e86f660653 plugin ip: fixed ip check (XEP-0279) use
Goffi <goffi@goffi.org>
parents: 1576
diff changeset
258 ip_check = yield self.host.hasFeature(NS_IP_CHECK, profile=profile)
a9e86f660653 plugin ip: fixed ip check (XEP-0279) use
Goffi <goffi@goffi.org>
parents: 1576
diff changeset
259 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
260 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
261 client = self.host.getClient(profile)
ec3848916ee8 plugin ip: implemented XEP-0279 for external ip retrieval + fixed bad exception handling
Goffi <goffi@goffi.org>
parents: 1555
diff changeset
262 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
263 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
264 try:
1668
a9e86f660653 plugin ip: fixed ip check (XEP-0279) use
Goffi <goffi@goffi.org>
parents: 1576
diff changeset
265 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
266 address_elt = result_elt.elements(NS_IP_CHECK, 'address').next()
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267 ip_elt = address_elt.elements(NS_IP_CHECK,'ip').next()
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268 except StopIteration:
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269 log.warning(u"Server returned invalid result on XEP-0279 request, we ignore it")
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270 except StanzaError as e:
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271 log.warning(u"error while requesting ip to server: {}".format(e))
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272 else:
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273 # FIXME: server IP may not be the same as external IP (server can be on local machine or network)
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274 # IP should be checked to see if we have a local one, and rejected in this case
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275 external_ip = str(ip_elt)
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276 log.debug(u"External IP found: {}".format(external_ip))
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277 self._external_ip_cache = external_ip
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278 defer.returnValue(self._external_ip_cache)
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279
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280 # then with NAT-Port
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281 if self._nat is not None:
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282 nat_ip = yield self._nat.getIP()
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283 if nat_ip is not None:
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284 self._external_ip_cache = nat_ip
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285 defer.returnValue(nat_ip)
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286
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287 # and finally by requesting external website
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288 allow_get_ip = yield self._externalAllowed(profile)
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289 try:
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290 ip = (yield webclient.getPage(GET_IP_PAGE)) if allow_get_ip else None
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291 except (internet_error.DNSLookupError, internet_error.TimeoutError):
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292 log.warning(u"Can't access Domain Name System")
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293 ip = None
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294 except web_error.Error as e:
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295 log.warning(u"Error while retrieving IP on {url}: {message}".format(url=GET_IP_PAGE, message=e))
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296 ip = None
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297 else:
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298 self._external_ip_cache = ip
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299 defer.returnValue(ip)
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300
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301
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302 class IPPlugin_handler(XMPPHandler):
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303 implements(iwokkel.IDisco)
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304
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305 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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306 return [disco.DiscoFeature(NS_IP_CHECK)]
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307
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308 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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309 return []