prosody
53dc98ffde16
core/stanza_router.lua

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core/stanza_router.lua @ 551:53dc98ffde16

Automated merge with http://waqas.ath.cx/
author Matthew Wild <mwild1@gmail.com>
date Thu, 04 Dec 2008 19:21:50 +0000
parent 519:cccd610a0ef9
child 570:f40928c94933
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diff changeset
1 -- Prosody IM v0.1
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2 -- Copyright (C) 2008 Matthew Wild
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3 -- Copyright (C) 2008 Waqas Hussain
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4 --
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5 -- This program is free software; you can redistribute it and/or
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6 -- modify it under the terms of the GNU General Public License
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7 -- as published by the Free Software Foundation; either version 2
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8 -- of the License, or (at your option) any later version.
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9 --
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10 -- This program is distributed in the hope that it will be useful,
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 -- GNU General Public License for more details.
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14 --
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15 -- You should have received a copy of the GNU General Public License
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16 -- along with this program; if not, write to the Free Software
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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18 --
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19
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20
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22 local log = require "util.logger".init("stanzarouter")
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23
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24 local st = require "util.stanza";
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25 local send_s2s = require "core.s2smanager".send_to_host;
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26 local user_exists = require "core.usermanager".user_exists;
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27
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28 local rostermanager = require "core.rostermanager";
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29 local sessionmanager = require "core.sessionmanager";
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30 local offlinemanager = require "core.offlinemanager";
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31
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32 local s2s_verify_dialback = require "core.s2smanager".verify_dialback;
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33 local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
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34
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35 local modules_handle_stanza = require "core.modulemanager".handle_stanza;
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36 local component_handle_stanza = require "core.componentmanager".handle_stanza;
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37
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38 local handle_outbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
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39 local handle_inbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
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40 local handle_normal_presence = require "core.presencemanager".handle_normal_presence;
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41
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42 local format = string.format;
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43 local tostring = tostring;
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44 local t_concat = table.concat;
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45 local t_insert = table.insert;
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46 local tonumber = tonumber;
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47 local s_find = string.find;
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48
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49 local jid_split = require "util.jid".split;
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50 local print = print;
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51
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52 function core_process_stanza(origin, stanza)
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53 (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:pretty_print()) --top_tag())
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54
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55 if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end -- FIXME Hack. This should be removed when we fix namespace handling.
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56 -- TODO verify validity of stanza (as well as JID validity)
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57 if stanza.name == "iq" and not(#stanza.tags == 1 and stanza.tags[1].attr.xmlns) then
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58 if stanza.attr.type == "set" or stanza.attr.type == "get" then
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59 error("Invalid IQ");
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60 elseif #stanza.tags > 1 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then
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61 error("Invalid IQ");
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62 end
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63 end
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65 if origin.type == "c2s" and not origin.full_jid
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66 and not(stanza.name == "iq" and stanza.tags[1].name == "bind"
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67 and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then
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68 error("Client MUST bind resource after auth");
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69 end
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70
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71 -- TODO also, stanzas should be returned to their original state before the function ends
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72 if origin.type == "c2s" then
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73 stanza.attr.from = origin.full_jid;
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74 end
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75 local to = stanza.attr.to;
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76 local node, host, resource = jid_split(to);
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77 local to_bare = node and (node.."@"..host) or host; -- bare JID
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78 local from = stanza.attr.from;
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79 local from_node, from_host, from_resource = jid_split(from);
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80 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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81
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82 if origin.type == "s2sin" then
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83 if origin.from_host ~= from_host then -- remote server trying to impersonate some other server?
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84 log("warn", "Received a stanza claiming to be from %s, over a conn authed for %s!", from, origin.from_host);
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85 return; -- FIXME what should we do here? does this work with subdomains?
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86 end
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87 end
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88 --[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us?
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89 log("warn", "stanza recieved for a non-local server");
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90 return; -- FIXME what should we do here?
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91 end]] -- FIXME
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92
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93 -- FIXME do stanzas not of jabber:client get handled by components?
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94 if origin.type == "s2sin" or origin.type == "c2s" then
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95 if not to then
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96 core_handle_stanza(origin, stanza);
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97 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
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98 core_handle_stanza(origin, stanza);
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99 elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then
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100 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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101 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
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102 component_handle_stanza(origin, stanza);
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103 elseif hosts[to] and hosts[to].type == "component" then -- hack to allow components to handle node@server/resource and server/resource
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104 component_handle_stanza(origin, stanza);
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105 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
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106 component_handle_stanza(origin, stanza);
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107 elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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108 handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
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109 elseif origin.type ~= "c2s" and stanza.name == "iq" and not resource then -- directed at bare JID
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110 core_handle_stanza(origin, stanza);
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111 else
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112 core_route_stanza(origin, stanza);
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113 end
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114 else
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115 core_handle_stanza(origin, stanza);
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116 end
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117 end
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118
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119 -- This function handles stanzas which are not routed any further,
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120 -- that is, they are handled by this server
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121 function core_handle_stanza(origin, stanza)
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122 -- Handlers
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123 if modules_handle_stanza(stanza.attr.to or origin.host, origin, stanza) then return; end
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124 if origin.type == "c2s" or origin.type == "c2s_unauthed" then
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125 local session = origin;
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126
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127 if stanza.name == "presence" and origin.roster then
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128 if stanza.attr.type == nil or stanza.attr.type == "unavailable" then
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129 handle_normal_presence(origin, stanza, core_route_stanza);
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130 else
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131 log("warn", "Unhandled c2s presence: %s", tostring(stanza));
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132 if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" then
264
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133 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
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134 end
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135 end
250
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136 else
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137 log("warn", "Unhandled c2s stanza: %s", tostring(stanza));
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138 if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
264
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139 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
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140 end
212
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141 end -- TODO handle other stanzas
145
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142 else
250
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143 log("warn", "Unhandled origin: %s", origin.type);
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144 if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
264
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145 -- s2s stanzas can get here
358
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146 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
264
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147 end
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148 end
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149 end
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150
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151 function core_route_stanza(origin, stanza)
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152 -- Hooks
68
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153 --- ...later
207
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154
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155 -- Deliver
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156 local to = stanza.attr.to;
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157 local node, host, resource = jid_split(to);
170
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158 local to_bare = node and (node.."@"..host) or host; -- bare JID
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159 local from = stanza.attr.from;
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160 local from_node, from_host, from_resource = jid_split(from);
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161 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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162
372
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163 -- Auto-detect origin if not specified
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164 origin = origin or hosts[from_host];
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165 if not origin then return false; end
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166
151
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167 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end
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168
68
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169 local host_session = hosts[host]
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170 if host_session and host_session.type == "local" then
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171 -- Local host
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172 local user = host_session.sessions[node];
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173 if user then
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174 local res = user.sessions[resource];
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175 if not res then
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176 -- if we get here, resource was not specified or was unavailable
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177 if stanza.name == "presence" then
151
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178 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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179 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
151
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180 else -- sender is available or unavailable
200
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181 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources.
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182 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription?
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183 stanza.attr.to = session.full_jid; -- reset at the end of function
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184 session.send(stanza);
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185 end
106
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186 end
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187 end
113
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188 elseif stanza.name == "message" then -- select a resource to recieve message
200
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189 local priority = 0;
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190 local recipients = {};
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191 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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192 local p = session.priority;
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193 if p > priority then
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194 priority = p;
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195 recipients = {session};
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196 elseif p == priority then
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197 t_insert(recipients, session);
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198 end
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199 end
249
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200 local count = 0;
237
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201 for _, session in pairs(recipients) do
200
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202 session.send(stanza);
249
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203 count = count + 1;
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204 end
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205 if count == 0 then
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206 offlinemanager.store(node, host, stanza);
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207 -- TODO deal with storage errors
200
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208 end
106
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209 else
113
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210 -- TODO send IQ error
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211 end
113
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212 else
121
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213 -- User + resource is online...
170
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214 stanza.attr.to = res.full_jid; -- reset at the end of function
186
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215 res.send(stanza); -- Yay \o/
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216 end
71
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217 else
113
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218 -- user not online
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219 if user_exists(node, host) then
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220 if stanza.name == "presence" then
175
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221 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
321
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222 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
113
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223 else
175
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224 -- TODO send unavailable presence or unsubscribed
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225 end
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226 elseif stanza.name == "message" then
249
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diff changeset
227 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then
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diff changeset
228 offlinemanager.store(node, host, stanza);
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229 -- FIXME don't store messages with only chat state notifications
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230 end
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diff changeset
231 -- TODO allow configuration of offline storage
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diff changeset
232 -- TODO send error if not storing offline
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diff changeset
233 elseif stanza.name == "iq" then
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234 -- TODO send IQ error
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235 end
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236 else -- user does not exist
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diff changeset
237 -- TODO we would get here for nodeless JIDs too. Do something fun maybe? Echo service? Let plugins use xmpp:server/resource addresses?
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diff changeset
238 if stanza.name == "presence" then
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diff changeset
239 if stanza.attr.type == "probe" then
186
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diff changeset
240 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
113
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diff changeset
241 end
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diff changeset
242 -- else ignore
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diff changeset
243 else
186
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diff changeset
244 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
113
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diff changeset
245 end
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diff changeset
246 end
71
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diff changeset
247 end
148
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diff changeset
248 elseif origin.type == "c2s" then
68
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diff changeset
249 -- Remote host
170
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diff changeset
250 local xmlns = stanza.attr.xmlns;
148
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diff changeset
251 --stanza.attr.xmlns = "jabber:server";
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diff changeset
252 stanza.attr.xmlns = nil;
146
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diff changeset
253 log("debug", "sending s2s stanza: %s", tostring(stanza));
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diff changeset
254 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
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diff changeset
255 stanza.attr.xmlns = xmlns; -- reset
210
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diff changeset
256 elseif origin.type == "component" or origin.type == "local" then
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257 -- Route via s2s for components and modules
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diff changeset
258 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host);
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diff changeset
259 send_s2s(origin.host, host, stanza);
148
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diff changeset
260 else
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diff changeset
261 log("warn", "received stanza from unhandled connection type: %s", origin.type);
68
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diff changeset
262 end
113
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
263 stanza.attr.to = to; -- reset
30
bcf539295f2d Huge commit to:
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264 end