prosody
defb0119f80f
core/stanza_router.lua

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core/stanza_router.lua @ 783:defb0119f80f

Stanza router: Message to bare JID fixes - headline messages get sent to all non-negative priority available resource - all other messages get sent to the set of highest non-negative priority available resources - only messages of type chat and normal or missing type go into offline storage
author Waqas Hussain <waqas20@gmail.com>
date Wed, 11 Feb 2009 23:16:14 +0500
parent 781:191b9f0e5485
child 784:1de8a32f81e9
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1 -- Prosody IM v0.3
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90ce865eebd8 Update copyright notices for 2009
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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 st = require "util.stanza";
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14 local send_s2s = require "core.s2smanager".send_to_host;
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15 local user_exists = require "core.usermanager".user_exists;
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16
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17 local rostermanager = require "core.rostermanager";
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18 local sessionmanager = require "core.sessionmanager";
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19 local offlinemanager = require "core.offlinemanager";
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20
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21 local s2s_verify_dialback = require "core.s2smanager".verify_dialback;
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22 local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
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23
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24 local modules_handle_stanza = require "core.modulemanager".handle_stanza;
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25 local component_handle_stanza = require "core.componentmanager".handle_stanza;
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26
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27 local handle_outbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
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28 local handle_inbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
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29 local handle_normal_presence = require "core.presencemanager".handle_normal_presence;
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31 local format = string.format;
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32 local tostring = tostring;
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33 local t_concat = table.concat;
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34 local t_insert = table.insert;
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35 local tonumber = tonumber;
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36 local s_find = string.find;
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37 local pairs = pairs;
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38 local ipairs = ipairs;
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39
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40 local jid_split = require "util.jid".split;
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41 local jid_prepped_split = require "util.jid".prepped_split;
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42 local print = print;
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43 local function checked_error_reply(origin, stanza)
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44 if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
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45 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
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46 end
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47 end
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49 function core_process_stanza(origin, stanza)
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50 (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag())
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51
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52 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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53 -- TODO verify validity of stanza (as well as JID validity)
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54 if stanza.name == "iq" and not(#stanza.tags == 1 and stanza.tags[1].attr.xmlns) then
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55 if stanza.attr.type == "set" or stanza.attr.type == "get" then
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56 error("Invalid IQ");
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57 elseif #stanza.tags > 1 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then
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58 error("Invalid IQ");
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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 error("Invalid to JID");
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81 end
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82 to_bare = node and (node.."@"..host) or host; -- bare JID
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83 if resource then to = to_bare.."/"..resource; else to = to_bare; end
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84 stanza.attr.to = to;
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85 end
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86 if from then
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87 from_node, from_host, from_resource = jid_prepped_split(from);
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88 if not from_host then
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89 error("Invalid from JID");
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90 end
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91 from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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92 if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end
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93 stanza.attr.from = from;
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94 end
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95
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96 --[[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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97 log("warn", "stanza recieved for a non-local server");
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98 return; -- FIXME what should we do here?
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99 end]] -- FIXME
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100
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101 -- FIXME do stanzas not of jabber:client get handled by components?
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102 if (origin.type == "s2sin" or origin.type == "c2s") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then
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103 if origin.type == "s2sin" and not origin.dummy then
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104 local host_status = origin.hosts[from_host];
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105 if not host_status or not host_status.authed then -- remote server trying to impersonate some other server?
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106 log("warn", "Received a stanza claiming to be from %s, over a conn authed for %s!", from_host, origin.from_host);
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107 return; -- FIXME what should we do here? does this work with subdomains?
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108 end
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109 end
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110 if origin.type == "c2s" and stanza.name == "presence" and to ~= nil and not(origin.roster[to_bare] and (origin.roster[to_bare].subscription == "both" or origin.roster[to_bare].subscription == "from")) then -- directed presence
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111 origin.directed = origin.directed or {};
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112 origin.directed[to] = true;
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113 --t_insert(origin.directed, to); -- FIXME does it make more sense to add to_bare rather than to?
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114 end
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115 if not to then
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116 core_handle_stanza(origin, stanza);
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117 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
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118 core_handle_stanza(origin, stanza);
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119 elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then
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120 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
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121 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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122 component_handle_stanza(origin, stanza);
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123 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
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124 component_handle_stanza(origin, stanza);
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125 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
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diff changeset
126 component_handle_stanza(origin, stanza);
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diff changeset
127 elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
321
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parents: 274
diff changeset
128 handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
274
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diff changeset
129 elseif origin.type ~= "c2s" and stanza.name == "iq" and not resource then -- directed at bare JID
222
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diff changeset
130 core_handle_stanza(origin, stanza);
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diff changeset
131 else
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diff changeset
132 core_route_stanza(origin, stanza);
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diff changeset
133 end
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diff changeset
134 else
212
9d6da9ed9063 Internal component support
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diff changeset
135 core_handle_stanza(origin, stanza);
119
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diff changeset
136 end
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parents: 113
diff changeset
137 end
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parents: 113
diff changeset
138
121
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parents: 119
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139 -- This function handles stanzas which are not routed any further,
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parents: 119
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140 -- that is, they are handled by this server
119
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diff changeset
141 function core_handle_stanza(origin, stanza)
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parents: 113
diff changeset
142 -- Handlers
667
4f4d94253547 Send host, and not the recipient's JID to module manager (fixes #53)
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parents: 642
diff changeset
143 if modules_handle_stanza(select(2, jid_split(stanza.attr.to)) or origin.host, origin, stanza) then return; end
570
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parents: 519
diff changeset
144 if origin.type == "c2s" or origin.type == "s2sin" then
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parents: 519
diff changeset
145 if origin.type == "c2s" then
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parents: 519
diff changeset
146 if stanza.name == "presence" and origin.roster then
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parents: 519
diff changeset
147 if stanza.attr.type == nil or stanza.attr.type == "unavailable" then
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parents: 519
diff changeset
148 handle_normal_presence(origin, stanza, core_route_stanza);
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diff changeset
149 else
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diff changeset
150 log("warn", "Unhandled c2s presence: %s", tostring(stanza));
715
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diff changeset
151 checked_error_reply(origin, stanza);
570
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diff changeset
152 end
113
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diff changeset
153 else
570
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diff changeset
154 log("warn", "Unhandled c2s stanza: %s", tostring(stanza));
715
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diff changeset
155 checked_error_reply(origin, stanza);
113
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diff changeset
156 end
570
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diff changeset
157 else -- s2s stanzas
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parents: 519
diff changeset
158 log("warn", "Unhandled s2s stanza: %s", tostring(stanza));
715
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diff changeset
159 checked_error_reply(origin, stanza);
570
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diff changeset
160 end
145
fbb3a4ff9cf1 dialback keys now verified
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parents: 144
diff changeset
161 else
570
f40928c94933 Fixed: Stopped tryint to send error replies on unauthed connections
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diff changeset
162 log("warn", "Unhandled %s stanza: %s", origin.type, tostring(stanza));
715
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parents: 667
diff changeset
163 checked_error_reply(origin, stanza);
71
fbb4ef1da82e Added: Local stanza routing
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diff changeset
164 end
30
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diff changeset
165 end
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parents:
diff changeset
166
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parents:
diff changeset
167 function core_route_stanza(origin, stanza)
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168 -- Hooks
68
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diff changeset
169 --- ...later
207
90c387884234 A little whitespace fix
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parents: 200
diff changeset
170
30
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diff changeset
171 -- Deliver
113
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diff changeset
172 local to = stanza.attr.to;
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173 local node, host, resource = jid_split(to);
170
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parents: 160
diff changeset
174 local to_bare = node and (node.."@"..host) or host; -- bare JID
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parents: 160
diff changeset
175 local from = stanza.attr.from;
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parents: 160
diff changeset
176 local from_node, from_host, from_resource = jid_split(from);
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parents: 160
diff changeset
177 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
113
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parents: 106
diff changeset
178
372
e7c1e30d06d5 Now possible to specify nil origin to core_route_stanza. Origin will be chosen as the host of the 'from' attribute on the stanza. Returns false on no such host.
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parents: 360
diff changeset
179 -- Auto-detect origin if not specified
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parents: 360
diff changeset
180 origin = origin or hosts[from_host];
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diff changeset
181 if not origin then return false; end
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parents: 360
diff changeset
182
781
191b9f0e5485 Fixed: Some presence stanzas from local users were not being routed correctly to components (ghosts in mod_muc)
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parents: 780
diff changeset
183 if hosts[to] and hosts[to].type == "component" then -- hack to allow components to handle node@server/resource and server/resource
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parents: 780
diff changeset
184 return component_handle_stanza(origin, stanza);
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parents: 780
diff changeset
185 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
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parents: 780
diff changeset
186 return component_handle_stanza(origin, stanza);
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diff changeset
187 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
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diff changeset
188 return component_handle_stanza(origin, stanza);
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parents: 780
diff changeset
189 end
191b9f0e5485 Fixed: Some presence stanzas from local users were not being routed correctly to components (ghosts in mod_muc)
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parents: 780
diff changeset
190
151
096c7b9374fc Presence fixes (again)
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parents: 143
diff changeset
191 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end
113
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diff changeset
192
68
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diff changeset
193 local host_session = hosts[host]
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diff changeset
194 if host_session and host_session.type == "local" then
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diff changeset
195 -- Local host
71
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diff changeset
196 local user = host_session.sessions[node];
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197 if user then
72
e78db62beebc Code cleanup
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parents: 71
diff changeset
198 local res = user.sessions[resource];
71
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diff changeset
199 if not res then
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diff changeset
200 -- if we get here, resource was not specified or was unavailable
106
f2a3d204a76a Added: presence broadcast
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diff changeset
201 if stanza.name == "presence" then
151
096c7b9374fc Presence fixes (again)
Waqas Hussain <waqas20@gmail.com>
parents: 143
diff changeset
202 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
321
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Waqas Hussain <waqas20@gmail.com>
parents: 274
diff changeset
203 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
151
096c7b9374fc Presence fixes (again)
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parents: 143
diff changeset
204 else -- sender is available or unavailable
200
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parents: 199
diff changeset
205 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources.
5e8b3cce798f Priority based message routing, etc
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parents: 199
diff changeset
206 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
207 stanza.attr.to = session.full_jid; -- reset at the end of function
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diff changeset
208 session.send(stanza);
113
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diff changeset
209 end
106
f2a3d204a76a Added: presence broadcast
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parents: 105
diff changeset
210 end
f2a3d204a76a Added: presence broadcast
Waqas Hussain <waqas20@gmail.com>
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diff changeset
211 end
113
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parents: 106
diff changeset
212 elseif stanza.name == "message" then -- select a resource to recieve message
783
defb0119f80f Stanza router: Message to bare JID fixes
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parents: 781
diff changeset
213 if message.attr.type == 'headline' then
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diff changeset
214 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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diff changeset
215 if session.presence and session.priority >= 0 then
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diff changeset
216 stanza.attr.to = session.full_jid;
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diff changeset
217 session.send(stanza);
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diff changeset
218 end
106
f2a3d204a76a Added: presence broadcast
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parents: 105
diff changeset
219 end
783
defb0119f80f Stanza router: Message to bare JID fixes
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parents: 781
diff changeset
220 else
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diff changeset
221 local priority = 0;
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diff changeset
222 local recipients = {};
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diff changeset
223 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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diff changeset
224 if session.presence then
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diff changeset
225 local p = session.priority;
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226 if p > priority then
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diff changeset
227 priority = p;
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diff changeset
228 recipients = {session};
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diff changeset
229 elseif p == priority then
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diff changeset
230 t_insert(recipients, session);
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diff changeset
231 end
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diff changeset
232 end
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diff changeset
233 end
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diff changeset
234 local count = 0;
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diff changeset
235 for _, session in ipairs(recipients) do
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diff changeset
236 session.send(stanza);
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diff changeset
237 count = count + 1;
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diff changeset
238 end
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diff changeset
239 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
240 offlinemanager.store(node, host, stanza);
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diff changeset
241 -- TODO deal with storage errors
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diff changeset
242 end
200
5e8b3cce798f Priority based message routing, etc
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parents: 199
diff changeset
243 end
106
f2a3d204a76a Added: presence broadcast
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diff changeset
244 else
113
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diff changeset
245 -- TODO send IQ error
71
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diff changeset
246 end
113
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diff changeset
247 else
121
74e5919e4737 Added a comment, removed all the old code
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parents: 119
diff changeset
248 -- User + resource is online...
170
e7bff9cfbb65 Minor fixes, comments
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parents: 160
diff changeset
249 stanza.attr.to = res.full_jid; -- reset at the end of function
186
bfa8a30ea488 sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
Matthew Wild <mwild1@gmail.com>
parents: 178
diff changeset
250 res.send(stanza); -- Yay \o/
106
f2a3d204a76a Added: presence broadcast
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parents: 105
diff changeset
251 end
71
fbb4ef1da82e Added: Local stanza routing
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diff changeset
252 else
113
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diff changeset
253 -- user not online
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diff changeset
254 if user_exists(node, host) then
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diff changeset
255 if stanza.name == "presence" then
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256 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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257 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
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258 else
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259 -- TODO send unavailable presence or unsubscribed
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260 end
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261 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority
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262 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then
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263 offlinemanager.store(node, host, stanza);
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264 -- FIXME don't store messages with only chat state notifications
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265 end
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266 -- TODO allow configuration of offline storage
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267 -- TODO send error if not storing offline
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268 elseif stanza.name == "iq" then
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269 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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270 end
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271 else -- user does not exist
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272 -- 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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273 if stanza.name == "presence" then
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274 local t = stanza.attr.type;
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275 if t == "subscribe" or t == "probe" then
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276 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
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277 end
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278 -- else ignore
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279 else
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280 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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281 end
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282 end
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283 end
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284 elseif origin.type == "c2s" then
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285 -- Remote host
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286 local xmlns = stanza.attr.xmlns;
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287 --stanza.attr.xmlns = "jabber:server";
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288 stanza.attr.xmlns = nil;
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289 log("debug", "sending s2s stanza: %s", tostring(stanza));
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290 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
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291 stanza.attr.xmlns = xmlns; -- reset
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292 elseif origin.type == "component" or origin.type == "local" then
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293 -- Route via s2s for components and modules
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294 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host);
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295 send_s2s(origin.host, host, stanza);
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296 else
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297 log("warn", "received stanza from unhandled connection type: %s", origin.type);
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298 end
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299 stanza.attr.to = to; -- reset
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300 end