Annotate

core/stanza_router.lua @ 1179:503d68e7e18a

stanza_router: s/conn/stream/ in log message
author Matthew Wild <mwild1@gmail.com>
date Sat, 16 May 2009 20:48:07 +0100
parent 1178:f332c033bfc8
child 1182:89e9f0d555a2
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2c0b9e3c11c3 0.3->0.4
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1 -- Prosody IM v0.4
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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11 local log = require "util.logger".init("stanzarouter")
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12
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13 local hosts = _G.hosts;
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14
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15 local st = require "util.stanza";
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16 local send_s2s = require "core.s2smanager".send_to_host;
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17 local user_exists = require "core.usermanager".user_exists;
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18
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19 local rostermanager = require "core.rostermanager";
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20 local sessionmanager = require "core.sessionmanager";
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21 local offlinemanager = require "core.offlinemanager";
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22
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23 local s2s_verify_dialback = require "core.s2smanager".verify_dialback;
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24 local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
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25
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26 local modules_handle_stanza = require "core.modulemanager".handle_stanza;
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27 local component_handle_stanza = require "core.componentmanager".handle_stanza;
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28
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29 local handle_outbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
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30 local handle_inbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
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31 local handle_normal_presence = function()end;--require "core.presencemanager".handle_normal_presence;
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32
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33 local format = string.format;
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34 local tostring = tostring;
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35 local t_concat = table.concat;
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36 local t_insert = table.insert;
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37 local tonumber = tonumber;
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38 local s_find = string.find;
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39 local pairs = pairs;
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40 local ipairs = ipairs;
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41
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42 local jid_split = require "util.jid".split;
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43 local jid_prepped_split = require "util.jid".prepped_split;
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44 local print = print;
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45 local fire_event = require "core.eventmanager2".fire_event;
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47 function core_process_stanza(origin, stanza)
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48 (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag())
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49
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50 -- Currently we guarantee every stanza to have an xmlns, should we keep this rule?
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51 if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end
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52
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53 -- TODO verify validity of stanza (as well as JID validity)
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54 if stanza.attr.type == "error" and #stanza.tags == 0 then return; end -- TODO invalid stanza, log
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55 if stanza.name == "iq" then
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56 if (stanza.attr.type == "set" or stanza.attr.type == "get") and #stanza.tags ~= 1 then
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57 origin.send(st.error_reply(stanza, "modify", "bad-request"));
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58 return;
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59 end
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60 end
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62 if origin.type == "c2s" and not origin.full_jid
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63 and not(stanza.name == "iq" and stanza.tags[1].name == "bind"
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64 and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then
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65 error("Client MUST bind resource after auth");
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66 end
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67
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68 -- TODO also, stanzas should be returned to their original state before the function ends
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69 if origin.type == "c2s" then
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70 stanza.attr.from = origin.full_jid;
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71 end
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72 local to, xmlns = stanza.attr.to, stanza.attr.xmlns;
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73 local from = stanza.attr.from;
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74 local node, host, resource;
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75 local from_node, from_host, from_resource;
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76 local to_bare, from_bare;
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77 if to then
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78 node, host, resource = jid_prepped_split(to);
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79 if not host then
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80 log("warn", "Received stanza with invalid destination JID: %s", to);
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81 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The destination address is invalid: "..to));
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82 return;
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83 end
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84 to_bare = node and (node.."@"..host) or host; -- bare JID
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85 if resource then to = to_bare.."/"..resource; else to = to_bare; end
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86 stanza.attr.to = to;
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87 end
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88 if from then
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89 -- We only stamp the 'from' on c2s stanzas, so we still need to check validity
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90 from_node, from_host, from_resource = jid_prepped_split(from);
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91 if not from_host then
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92 log("warn", "Received stanza with invalid source JID: %s", from);
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93 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The source address is invalid: "..from));
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94 return;
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95 end
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96 from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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97 if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end
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98 stanza.attr.from = from;
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99 end
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100
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101 --[[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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102 log("warn", "stanza recieved for a non-local server");
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103 return; -- FIXME what should we do here?
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104 end]] -- FIXME
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105
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106 if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == "jabber:client" then
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107 if origin.type == "s2sin" and not origin.dummy then
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108 local host_status = origin.hosts[from_host];
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109 if not host_status or not host_status.authed then -- remote server trying to impersonate some other server?
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110 log("warn", "Received a stanza claiming to be from %s, over a stream authed for %s!", from_host, origin.from_host);
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111 return; -- FIXME what should we do here? does this work with subdomains?
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112 end
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113 end
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114 core_post_stanza(origin, stanza);
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115 else
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116 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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117 end
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118 end
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119
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120 function core_post_stanza(origin, stanza)
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121 local to = stanza.attr.to;
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122 local node, host, resource = jid_split(to);
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123 local to_bare = node and (node.."@"..host) or host; -- bare JID
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124
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125 local event_data = {origin=origin, stanza=stanza};
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126 if fire_event(tostring(host or origin.host).."/"..stanza.name, event_data) then
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127 -- event handled
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128 elseif not to then
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129 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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130 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
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diff changeset
131 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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132 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
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diff changeset
133 component_handle_stanza(origin, stanza);
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134 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
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diff changeset
135 component_handle_stanza(origin, stanza);
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diff changeset
136 elseif hosts[host] and hosts[host].type == "local" and stanza.name == "iq" and not resource then -- directed at bare JID
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diff changeset
137 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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diff changeset
138 else
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diff changeset
139 core_route_stanza(origin, stanza);
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140 end
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diff changeset
141 end
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diff changeset
142
30
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diff changeset
143 function core_route_stanza(origin, stanza)
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144 -- Hooks
68
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diff changeset
145 --- ...later
207
90c387884234 A little whitespace fix
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diff changeset
146
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147 -- Deliver
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148 local to = stanza.attr.to;
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149 local node, host, resource = jid_split(to);
170
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150 local to_bare = node and (node.."@"..host) or host; -- bare JID
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151 local from = stanza.attr.from;
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152 local from_node, from_host, from_resource = jid_split(from);
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153 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
113
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diff changeset
154
372
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diff changeset
155 -- Auto-detect origin if not specified
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156 origin = origin or hosts[from_host];
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diff changeset
157 if not origin then return false; end
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parents: 360
diff changeset
158
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159 if hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
781
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parents: 780
diff changeset
160 return component_handle_stanza(origin, stanza);
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diff changeset
161 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
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diff changeset
162 return component_handle_stanza(origin, stanza);
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diff changeset
163 end
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diff changeset
164
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165 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error") then resource = nil; end
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166
68
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167 local host_session = hosts[host]
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diff changeset
168 if host_session and host_session.type == "local" then
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diff changeset
169 -- Local host
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170 local user = host_session.sessions[node];
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171 if user then
72
e78db62beebc Code cleanup
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diff changeset
172 local res = user.sessions[resource];
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173 if res then -- resource is online...
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diff changeset
174 res.send(stanza); -- Yay \o/
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diff changeset
175 else
71
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diff changeset
176 -- if we get here, resource was not specified or was unavailable
106
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parents: 105
diff changeset
177 if stanza.name == "presence" then
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parents: 924
diff changeset
178 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
321
31fe15ce6fac Moved presence subscription code from stanza_router to presencemanager
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parents: 274
diff changeset
179 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
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180 elseif not resource then -- sender is available or unavailable or error
200
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parents: 199
diff changeset
181 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources.
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parents: 199
diff changeset
182 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription?
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diff changeset
183 stanza.attr.to = session.full_jid; -- reset at the end of function
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diff changeset
184 session.send(stanza);
113
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diff changeset
185 end
106
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diff changeset
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
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diff changeset
189 stanza.attr.to = to_bare;
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190 if stanza.attr.type == 'headline' then
783
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diff changeset
191 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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192 if session.presence and session.priority >= 0 then
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193 session.send(stanza);
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diff changeset
194 end
106
f2a3d204a76a Added: presence broadcast
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parents: 105
diff changeset
195 end
848
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diff changeset
196 elseif resource and stanza.attr.type == 'groupchat' then
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diff changeset
197 -- Groupchat message sent to offline resource
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diff changeset
198 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
783
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diff changeset
199 else
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200 local priority = 0;
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201 local recipients = {};
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diff changeset
202 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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diff changeset
203 if session.presence then
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diff changeset
204 local p = session.priority;
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205 if p > priority then
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206 priority = p;
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207 recipients = {session};
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208 elseif p == priority then
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diff changeset
209 t_insert(recipients, session);
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diff changeset
210 end
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parents: 781
diff changeset
211 end
defb0119f80f Stanza router: Message to bare JID fixes
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diff changeset
212 end
defb0119f80f Stanza router: Message to bare JID fixes
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diff changeset
213 local count = 0;
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diff changeset
214 for _, session in ipairs(recipients) do
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diff changeset
215 session.send(stanza);
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diff changeset
216 count = count + 1;
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diff changeset
217 end
defb0119f80f Stanza router: Message to bare JID fixes
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diff changeset
218 if count == 0 and (stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type) then
defb0119f80f Stanza router: Message to bare JID fixes
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diff changeset
219 offlinemanager.store(node, host, stanza);
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diff changeset
220 -- TODO deal with storage errors
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diff changeset
221 end
200
5e8b3cce798f Priority based message routing, etc
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parents: 199
diff changeset
222 end
967
b021403c5d80 Fixed: Send correct error reply for IQs directed at unavailable resources
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diff changeset
223 elseif stanza.attr.type == "get" or stanza.attr.type == "set" then
b021403c5d80 Fixed: Send correct error reply for IQs directed at unavailable resources
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diff changeset
224 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
71
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parents: 68
diff changeset
225 end
106
f2a3d204a76a Added: presence broadcast
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parents: 105
diff changeset
226 end
71
fbb4ef1da82e Added: Local stanza routing
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diff changeset
227 else
113
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diff changeset
228 -- user not online
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diff changeset
229 if user_exists(node, host) then
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diff changeset
230 if stanza.name == "presence" then
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d2692d427496 Fixed: Issue with presence error routing
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diff changeset
231 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
321
31fe15ce6fac Moved presence subscription code from stanza_router to presencemanager
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parents: 274
diff changeset
232 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
113
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diff changeset
233 else
175
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
234 -- TODO send unavailable presence or unsubscribed
113
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parents: 106
diff changeset
235 end
642
0ae8584ba3e7 More error replies for offline and non-existing users
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parents: 641
diff changeset
236 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority
784
1de8a32f81e9 Change the to attribute of messages to the recipients' bare JID when the recipient/resource is offline.
Waqas Hussain <waqas20@gmail.com>
parents: 783
diff changeset
237 stanza.attr.to = to_bare; -- TODO not in RFC, but seems obvious. Should discuss on the mailing list.
249
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
238 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
239 offlinemanager.store(node, host, stanza);
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
240 -- FIXME don't store messages with only chat state notifications
848
b1f3977fd140 core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
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parents: 789
diff changeset
241 elseif stanza.attr.type == "groupchat" then
b1f3977fd140 core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
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parents: 789
diff changeset
242 local reply = st.error_reply(stanza, "cancel", "service-unavailable");
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parents: 789
diff changeset
243 reply.attr.from = to;
b1f3977fd140 core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
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parents: 789
diff changeset
244 origin.send(reply);
249
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
245 end
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
246 -- TODO allow configuration of offline storage
1fc47cf5d144 Added basic offline message support
Waqas Hussain <waqas20@gmail.com>
parents: 237
diff changeset
247 -- TODO send error if not storing offline
854
b9cfc9d5496a core.stanza_router: Don't bounce errors to iq type=result/error
Matthew Wild <mwild1@gmail.com>
parents: 848
diff changeset
248 elseif stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then
642
0ae8584ba3e7 More error replies for offline and non-existing users
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parents: 641
diff changeset
249 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
113
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diff changeset
250 end
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diff changeset
251 else -- user does not exist
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diff changeset
252 -- 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
253 if stanza.name == "presence" then
642
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parents: 641
diff changeset
254 local t = stanza.attr.type;
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diff changeset
255 if t == "subscribe" or t == "probe" then
186
bfa8a30ea488 sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
Matthew Wild <mwild1@gmail.com>
parents: 178
diff changeset
256 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
113
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parents: 106
diff changeset
257 end
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258 -- else ignore
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259 elseif stanza.attr.type ~= "error" and (stanza.name ~= "iq" or stanza.attr.type ~= "result") then
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260 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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261 end
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262 end
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263 end
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264 elseif origin.type == "c2s" then
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265 -- Remote host
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266 local xmlns = stanza.attr.xmlns;
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267 --stanza.attr.xmlns = "jabber:server";
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268 stanza.attr.xmlns = nil;
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269 log("debug", "sending s2s stanza: %s", tostring(stanza));
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270 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
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271 stanza.attr.xmlns = xmlns; -- reset
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272 elseif origin.type == "component" or origin.type == "local" then
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273 -- Route via s2s for components and modules
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274 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host);
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275 send_s2s(origin.host, host, stanza);
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276 else
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277 log("warn", "received stanza from unhandled connection type: %s", origin.type);
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278 end
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279 stanza.attr.to = to; -- reset
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280 end