prosody
e9de0803676d
core/stanza_router.lua

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core/stanza_router.lua @ 209:e9de0803676d

Part one of internal component support
author Matthew Wild <mwild1@gmail.com>
date Tue, 04 Nov 2008 18:15:56 +0000
parent 207:90c387884234
child 210:e679487e2fa4
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1
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2 -- The code in this file should be self-explanatory, though the logic is horrible
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3 -- for more info on that, see doc/stanza_routing.txt, which attempts to condense
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4 -- the rules from the RFCs (mainly 3921)
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5
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6 require "core.servermanager"
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8 local log = require "util.logger".init("stanzarouter")
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9
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10 local st = require "util.stanza";
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11 local send_s2s = require "core.s2smanager".send_to_host;
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12 local user_exists = require "core.usermanager".user_exists;
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13
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14 local rostermanager = require "core.rostermanager";
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15 local sessionmanager = require "core.sessionmanager";
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16
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17 local s2s_verify_dialback = require "core.s2smanager".verify_dialback;
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18 local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
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20 local modules_handle_stanza = require "core.modulemanager".handle_stanza;
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21 local component_handle_stanza = require "core.componentmanager".handle_stanza;
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22
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23 local format = string.format;
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24 local tostring = tostring;
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25 local t_concat = table.concat;
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26 local t_insert = table.insert;
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27 local tonumber = tonumber;
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28 local s_find = string.find;
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30 local jid_split = require "util.jid".split;
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31 local print = print;
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33 function core_process_stanza(origin, stanza)
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34 log("debug", "Received["..origin.type.."]: "..tostring(stanza))
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36 -- TODO verify validity of stanza (as well as JID validity)
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37 if stanza.name == "iq" and not(#stanza.tags == 1 and stanza.tags[1].attr.xmlns) then
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38 if stanza.attr.type == "set" or stanza.attr.type == "get" then
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39 error("Invalid IQ");
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40 elseif #stanza.tags > 1 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then
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41 error("Invalid IQ");
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42 end
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43 end
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45 if origin.type == "c2s" and not origin.full_jid
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46 and not(stanza.name == "iq" and stanza.tags[1].name == "bind"
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47 and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then
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48 error("Client MUST bind resource after auth");
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49 end
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50
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51 -- TODO also, stazas should be returned to their original state before the function ends
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52 if origin.type == "c2s" then
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53 stanza.attr.from = origin.full_jid;
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54 end
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55 local to = stanza.attr.to;
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56 local node, host, resource = jid_split(to);
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57 local to_bare = node and (node.."@"..host) or host; -- bare JID
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58 local from = stanza.attr.from;
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59 local from_node, from_host, from_resource = jid_split(from);
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60 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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62 if origin.type == "s2sin" then
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63 if origin.from_host ~= from_host then -- remote server trying to impersonate some other server?
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64 log("warn", "Received a stanza claiming to be from %s, over a conn authed for %s!", from, origin.from_host);
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65 return; -- FIXME what should we do here? does this work with subdomains?
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66 end
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67 end
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68 --[[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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69 log("warn", "stanza recieved for a non-local server");
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70 return; -- FIXME what should we do here?
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71 end]] -- FIXME
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73 -- FIXME do stanzas not of jabber:client get handled by components?
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74 if not to then
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75 core_handle_stanza(origin, stanza);
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76 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
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77 core_handle_stanza(origin, stanza);
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78 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
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79 component_handle_stanza(origin, stanza);
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80 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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81 component_handle_stanza(origin, stanza);
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82 elseif hosts[host].type == "component" then -- directed at a component
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83 component_handle_stanza(origin, stanza);
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84 elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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85 handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
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86 elseif stanza.name == "iq" and not resource then -- directed at bare JID
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87 core_handle_stanza(origin, stanza);
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88 elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then
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89 modules_handle_stanza(origin, stanza);
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90 elseif origin.type == "c2s" or origin.type == "s2sin" then
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91 core_route_stanza(origin, stanza);
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92 else
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93 log("warn", "stanza not processed");
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94 end
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95 end
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96
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97 -- This function handles stanzas which are not routed any further,
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98 -- that is, they are handled by this server
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99 function core_handle_stanza(origin, stanza)
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100 -- Handlers
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101 if modules_handle_stanza(origin, stanza) then return; end
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102 if origin.type == "c2s" or origin.type == "c2s_unauthed" then
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103 local session = origin;
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104
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105 if stanza.name == "presence" and origin.roster then
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106 if stanza.attr.type == nil or stanza.attr.type == "unavailable" then
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107 for jid in pairs(origin.roster) do -- broadcast to all interested contacts
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108 local subscription = origin.roster[jid].subscription;
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109 if subscription == "both" or subscription == "from" then
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110 stanza.attr.to = jid;
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111 core_route_stanza(origin, stanza);
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112 end
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113 end
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114 local node, host = jid_split(stanza.attr.from);
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115 for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources
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116 if res ~= origin and res.full_jid then -- to resource. FIXME is res.full_jid the correct check? Maybe it should be res.presence
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117 stanza.attr.to = res.full_jid;
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118 core_route_stanza(origin, stanza);
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119 end
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120 end
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121 if stanza.attr.type == nil and not origin.presence then -- initial presence
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122 local probe = st.presence({from = origin.full_jid, type = "probe"});
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123 for jid in pairs(origin.roster) do -- probe all contacts we are subscribed to
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124 local subscription = origin.roster[jid].subscription;
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125 if subscription == "both" or subscription == "to" then
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126 probe.attr.to = jid;
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127 core_route_stanza(origin, probe);
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128 end
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129 end
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130 for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast from all available resources
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131 if res ~= origin and res.presence then
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132 res.presence.attr.to = origin.full_jid;
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133 core_route_stanza(res, res.presence);
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134 res.presence.attr.to = nil;
6b8e2bd82ac5 Moved some code and removed unnecessary checks.
Waqas Hussain <waqas20@gmail.com>
parents: 151
diff changeset
135 end
6b8e2bd82ac5 Moved some code and removed unnecessary checks.
Waqas Hussain <waqas20@gmail.com>
parents: 151
diff changeset
136 end
199
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
137 if origin.roster.pending then -- resend incoming subscription requests
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
138 for jid in pairs(origin.roster.pending) do
eccf66b42bd7 Added resource priority handling, etc
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parents: 192
diff changeset
139 origin.send(st.presence({type="subscribe", from=jid})); -- TODO add to attribute? Use original?
eccf66b42bd7 Added resource priority handling, etc
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parents: 192
diff changeset
140 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
141 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
142 local request = st.presence({type="subscribe", from=origin.username.."@"..origin.host});
eccf66b42bd7 Added resource priority handling, etc
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parents: 192
diff changeset
143 for jid, item in pairs(origin.roster) do -- resend outgoing subscription requests
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
144 if item.ask then
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
145 request.attr.to = jid;
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
146 core_route_stanza(origin, request);
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
147 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
148 end
113
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
149 end
199
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
150 origin.priority = 0;
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
151 if stanza.attr.type == "unavailable" then
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
152 origin.presence = nil;
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
153 else
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
154 origin.presence = stanza;
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
155 local priority = stanza:child_with_name("priority");
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
156 if priority and #priority > 0 then
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
157 priority = t_concat(priority);
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
158 if s_find(priority, "^[+-]?[0-9]+$") then
eccf66b42bd7 Added resource priority handling, etc
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parents: 192
diff changeset
159 priority = tonumber(priority);
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
160 if priority < -128 then priority = -128 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
161 if priority > 127 then priority = 127 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
162 origin.priority = priority;
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
163 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
164 end
eccf66b42bd7 Added resource priority handling, etc
Waqas Hussain <waqas20@gmail.com>
parents: 192
diff changeset
165 end
113
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
166 stanza.attr.to = nil; -- reset it
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
167 else
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
168 -- TODO error, bad type
9026fdad1531 Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents: 106
diff changeset
169 end
209
e9de0803676d Part one of internal component support
Matthew Wild <mwild1@gmail.com>
parents: 207
diff changeset
170 end -- TODO handle other stanzas
145
fbb3a4ff9cf1 dialback keys now verified
Matthew Wild <mwild1@gmail.com>
parents: 144
diff changeset
171 else
209
e9de0803676d Part one of internal component support
Matthew Wild <mwild1@gmail.com>
parents: 207
diff changeset
172 log("warn", "Unhandled origin: %s", origin.type); -- FIXME reply with error
71
fbb4ef1da82e Added: Local stanza routing
Waqas Hussain <waqas20@gmail.com>
parents: 68
diff changeset
173 end
30
bcf539295f2d Huge commit to:
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 end
bcf539295f2d Huge commit to:
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
176 function send_presence_of_available_resources(user, host, jid, recipient_session)
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
177 local h = hosts[host];
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
178 local count = 0;
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
179 if h and h.type == "local" then
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
180 local u = h.sessions[user];
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
181 if u then
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
182 for k, session in pairs(u.sessions) do
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
183 local pres = session.presence;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
184 if pres then
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
185 pres.attr.to = jid;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
186 pres.attr.from = session.full_jid;
186
bfa8a30ea488 sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
Matthew Wild <mwild1@gmail.com>
parents: 178
diff changeset
187 recipient_session.send(pres);
175
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
188 pres.attr.to = nil;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
189 pres.attr.from = nil;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
190 count = count + 1;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
191 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
192 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
193 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
194 end
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
195 return count;
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
196 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
197
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
198 function handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare)
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
199 local node, host = jid_split(from_bare);
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
200 local st_from, st_to = stanza.attr.from, stanza.attr.to;
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
201 stanza.attr.from, stanza.attr.to = from_bare, to_bare;
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
202 if stanza.attr.type == "subscribe" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
203 log("debug", "outbound subscribe from "..from_bare.." for "..to_bare);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
204 -- 1. route stanza
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
205 -- 2. roster push (subscription = none, ask = subscribe)
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
206 if rostermanager.set_contact_pending_out(node, host, to_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
207 rostermanager.roster_push(node, host, to_bare);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
208 end -- else file error
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
209 core_route_stanza(origin, stanza);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
210 elseif stanza.attr.type == "unsubscribe" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
211 log("debug", "outbound unsubscribe from "..from_bare.." for "..to_bare);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
212 -- 1. route stanza
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
213 -- 2. roster push (subscription = none or from)
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
214 if rostermanager.unsubscribe(node, host, to_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
215 rostermanager.roster_push(node, host, to_bare); -- FIXME do roster push when roster has in fact not changed?
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
216 end -- else file error
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
217 core_route_stanza(origin, stanza);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
218 elseif stanza.attr.type == "subscribed" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
219 log("debug", "outbound subscribed from "..from_bare.." for "..to_bare);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
220 -- 1. route stanza
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
221 -- 2. roster_push ()
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
222 -- 3. send_presence_of_available_resources
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
223 if rostermanager.subscribed(node, host, to_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
224 rostermanager.roster_push(node, host, to_bare);
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
225 core_route_stanza(origin, stanza);
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
226 send_presence_of_available_resources(node, host, to_bare, origin);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
227 end
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
228 elseif stanza.attr.type == "unsubscribed" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
229 log("debug", "outbound unsubscribed from "..from_bare.." for "..to_bare);
176
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
230 -- 1. route stanza
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
231 -- 2. roster push (subscription = none or to)
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
232 if rostermanager.unsubscribed(node, host, to_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
233 rostermanager.roster_push(node, host, to_bare);
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
234 core_route_stanza(origin, stanza);
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
235 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
236 end
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
237 stanza.attr.from, stanza.attr.to = st_from, st_to;
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
238 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
239
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
240 function handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare)
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
241 local node, host = jid_split(to_bare);
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
242 local st_from, st_to = stanza.attr.from, stanza.attr.to;
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
243 stanza.attr.from, stanza.attr.to = from_bare, to_bare;
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
244 if stanza.attr.type == "probe" then
200
5e8b3cce798f Priority based message routing, etc
Waqas Hussain <waqas20@gmail.com>
parents: 199
diff changeset
245 log("debug", "inbound probe from "..from_bare.." for "..to_bare);
175
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
246 if rostermanager.is_contact_subscribed(node, host, from_bare) then
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
247 if 0 == send_presence_of_available_resources(node, host, from_bare, origin) then
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
248 -- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
249 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
250 else
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
251 core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="unsubscribed"}));
175
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
252 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
253 elseif stanza.attr.type == "subscribe" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
254 log("debug", "inbound subscribe from "..from_bare.." for "..to_bare);
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
255 if rostermanager.is_contact_subscribed(node, host, from_bare) then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
256 core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="subscribed"})); -- already subscribed
175
5f71d290bb44 Routing code reorganization
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parents: 174
diff changeset
257 else
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
258 if not rostermanager.is_contact_pending_in(node, host, from_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
259 if rostermanager.set_contact_pending_in(node, host, from_bare) then
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
260 sessionmanager.send_to_available_resources(node, host, stanza);
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 175
diff changeset
261 end -- TODO else return error, unable to save
e5cd2a03891d Outbound presence subscription
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parents: 175
diff changeset
262 end
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
263 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
264 elseif stanza.attr.type == "unsubscribe" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
265 log("debug", "inbound unsubscribe from "..from_bare.." for "..to_bare);
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
266 if rostermanager.process_inbound_unsubscribe(node, host, from_bare) then
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
267 rostermanager.roster_push(node, host, from_bare);
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
268 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
269 elseif stanza.attr.type == "subscribed" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 176
diff changeset
270 log("debug", "inbound subscribed from "..from_bare.." for "..to_bare);
175
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
271 if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
272 rostermanager.roster_push(node, host, from_bare);
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
273 end
5f71d290bb44 Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
274 elseif stanza.attr.type == "unsubscribed" then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
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diff changeset
275 log("debug", "inbound unsubscribed from "..from_bare.." for "..to_bare);
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276 if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then
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277 rostermanager.roster_push(node, host, from_bare);
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278 end
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279 end -- discard any other type
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280 stanza.attr.from, stanza.attr.to = st_from, st_to;
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281 end
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282
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283 function core_route_stanza(origin, stanza)
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284 -- Hooks
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285 --- ...later
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286
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287 -- Deliver
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288 local to = stanza.attr.to;
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289 local node, host, resource = jid_split(to);
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290 local to_bare = node and (node.."@"..host) or host; -- bare JID
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291 local from = stanza.attr.from;
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292 local from_node, from_host, from_resource = jid_split(from);
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293 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
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294
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295 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end
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296
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297 local host_session = hosts[host]
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298 if host_session and host_session.type == "local" then
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299 -- Local host
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300 local user = host_session.sessions[node];
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301 if user then
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302 local res = user.sessions[resource];
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303 if not res then
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304 -- if we get here, resource was not specified or was unavailable
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305 if stanza.name == "presence" then
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306 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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307 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
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308 else -- sender is available or unavailable
200
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309 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources.
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310 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription?
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311 stanza.attr.to = session.full_jid; -- reset at the end of function
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312 session.send(stanza);
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313 end
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314 end
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315 end
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316 elseif stanza.name == "message" then -- select a resource to recieve message
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317 local priority = 0;
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318 local recipients = {};
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319 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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320 local p = session.priority;
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321 if p > priority then
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322 priority = p;
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323 recipients = {session};
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324 elseif p == priority then
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325 t_insert(recipients, session);
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326 end
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327 end
200
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328 for _, session in pairs(recipient) do
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329 session.send(stanza);
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330 end
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331 else
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332 -- TODO send IQ error
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333 end
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334 else
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335 -- User + resource is online...
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336 stanza.attr.to = res.full_jid; -- reset at the end of function
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337 res.send(stanza); -- Yay \o/
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338 end
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339 else
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340 -- user not online
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341 if user_exists(node, host) then
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342 if stanza.name == "presence" then
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343 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
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344 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
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345 else
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346 -- TODO send unavailable presence or unsubscribed
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347 end
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348 elseif stanza.name == "message" then
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349 -- TODO send message error, or store offline messages
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350 elseif stanza.name == "iq" then
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351 -- TODO send IQ error
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352 end
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353 else -- user does not exist
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354 -- 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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355 if stanza.name == "presence" then
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356 if stanza.attr.type == "probe" then
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357 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
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358 end
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359 -- else ignore
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360 else
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361 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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362 end
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363 end
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364 end
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365 elseif origin.type == "c2s" then
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366 -- Remote host
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367 local xmlns = stanza.attr.xmlns;
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368 --stanza.attr.xmlns = "jabber:server";
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369 stanza.attr.xmlns = nil;
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370 log("debug", "sending s2s stanza: %s", tostring(stanza));
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371 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
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372 stanza.attr.xmlns = xmlns; -- reset
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373 else
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374 log("warn", "received stanza from unhandled connection type: %s", origin.type);
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375 end
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376 stanza.attr.to = to; -- reset
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377 end
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378
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379 function handle_stanza_toremote(stanza)
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380 log("error", "Stanza bound for remote host, but s2s is not implemented");
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381 end