Software / code / prosody
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core/stanza_router.lua @ 1212:3be23cf5a659
stanza_router: Break off resource selection for messages into a standalone function
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Thu, 28 May 2009 20:39:32 +0100 |
| parent | 1191:7f965bd37d65 |
| child | 1228:853d3d76ba94 |
| rev | line source |
|---|---|
| 896 | 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 -- |
| 758 | 5 -- This project is MIT/X11 licensed. Please see the |
| 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 |
| 30 | 10 |
| 11 local log = require "util.logger".init("stanzarouter") | |
| 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 |
| 145 | 23 local s2s_verify_dialback = require "core.s2smanager".verify_dialback; |
| 146 | 24 local s2s_make_authenticated = require "core.s2smanager".make_authenticated; |
| 191 | 25 |
| 26 local modules_handle_stanza = require "core.modulemanager".handle_stanza; | |
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27 local component_handle_stanza = require "core.componentmanager".handle_stanza; |
| 191 | 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 |
| 145 | 33 local format = string.format; |
| 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; |
| 145 | 41 |
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42 local jid_split = require "util.jid".split; |
| 718 | 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; |
| 30 | 46 |
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47 local select_best_resources; |
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48 |
| 30 | 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 -- Currently we guarantee every stanza to have an xmlns, should we keep this rule? |
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53 if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end |
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54 |
| 73 | 55 -- TODO verify validity of stanza (as well as JID validity) |
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56 if stanza.attr.type == "error" and #stanza.tags == 0 then return; end -- TODO invalid stanza, log |
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57 if stanza.name == "iq" then |
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58 if (stanza.attr.type == "set" or stanza.attr.type == "get") and #stanza.tags ~= 1 then |
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59 origin.send(st.error_reply(stanza, "modify", "bad-request")); |
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60 return; |
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61 end |
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62 end |
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63 |
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64 if origin.type == "c2s" and not origin.full_jid |
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65 and not(stanza.name == "iq" and stanza.tags[1].name == "bind" |
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66 and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then |
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67 error("Client MUST bind resource after auth"); |
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68 end |
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69 |
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70 -- TODO also, stanzas should be returned to their original state before the function ends |
| 145 | 71 if origin.type == "c2s" then |
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72 stanza.attr.from = origin.full_jid; |
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73 end |
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74 local to, xmlns = stanza.attr.to, stanza.attr.xmlns; |
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75 local from = stanza.attr.from; |
| 718 | 76 local node, host, resource; |
| 77 local from_node, from_host, from_resource; | |
| 78 local to_bare, from_bare; | |
| 79 if to then | |
| 80 node, host, resource = jid_prepped_split(to); | |
| 81 if not host then | |
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82 log("warn", "Received stanza with invalid destination JID: %s", to); |
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83 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The destination address is invalid: "..to)); |
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84 return; |
| 718 | 85 end |
| 86 to_bare = node and (node.."@"..host) or host; -- bare JID | |
| 87 if resource then to = to_bare.."/"..resource; else to = to_bare; end | |
| 88 stanza.attr.to = to; | |
| 89 end | |
| 90 if from then | |
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91 -- We only stamp the 'from' on c2s stanzas, so we still need to check validity |
| 718 | 92 from_node, from_host, from_resource = jid_prepped_split(from); |
| 93 if not from_host then | |
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94 log("warn", "Received stanza with invalid source JID: %s", from); |
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95 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The source address is invalid: "..from)); |
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96 return; |
| 718 | 97 end |
| 98 from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
| 99 if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end | |
| 100 stanza.attr.from = from; | |
| 101 end | |
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102 |
| 213 | 103 --[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us? |
| 104 log("warn", "stanza recieved for a non-local server"); | |
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105 return; -- FIXME what should we do here? |
| 213 | 106 end]] -- FIXME |
| 207 | 107 |
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108 if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == "jabber:client" then |
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109 if origin.type == "s2sin" and not origin.dummy then |
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110 local host_status = origin.hosts[from_host]; |
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111 if not host_status or not host_status.authed then -- remote server trying to impersonate some other server? |
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112 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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113 return; -- FIXME what should we do here? does this work with subdomains? |
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114 end |
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115 end |
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116 core_post_stanza(origin, stanza); |
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117 else |
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118 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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119 end |
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120 end |
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121 |
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122 function core_post_stanza(origin, stanza) |
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123 local to = stanza.attr.to; |
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124 local node, host, resource = jid_split(to); |
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125 local to_bare = node and (node.."@"..host) or host; -- bare JID |
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126 |
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127 local event_data = {origin=origin, stanza=stanza}; |
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128 if host and fire_event(host.."/"..stanza.name, event_data) then |
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129 -- event handled |
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130 elseif stanza.name == "presence" and origin.host and fire_event(origin.host.."/"..stanza.name, event_data) then |
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131 -- event handled |
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132 elseif not to then |
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133 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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134 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server |
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135 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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136 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
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137 component_handle_stanza(origin, stanza); |
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138 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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139 component_handle_stanza(origin, stanza); |
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140 elseif hosts[host] and hosts[host].type == "local" and stanza.name == "iq" and not resource then -- directed at bare JID |
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141 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
| 145 | 142 else |
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143 core_route_stanza(origin, stanza); |
|
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changeset
|
144 end |
| 30 | 145 end |
| 146 | |
| 147 function core_route_stanza(origin, stanza) | |
| 148 -- Hooks | |
|
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149 --- ...later |
| 207 | 150 |
| 30 | 151 -- Deliver |
|
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152 local to = stanza.attr.to; |
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153 local node, host, resource = jid_split(to); |
| 170 | 154 local to_bare = node and (node.."@"..host) or host; -- bare JID |
| 155 local from = stanza.attr.from; | |
| 156 local from_node, from_host, from_resource = jid_split(from); | |
| 157 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
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158 |
|
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159 -- Auto-detect origin if not specified |
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160 origin = origin or hosts[from_host]; |
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161 if not origin then return false; end |
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162 |
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163 if hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
|
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Fixed: Some presence stanzas from local users were not being routed correctly to components (ghosts in mod_muc)
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164 return component_handle_stanza(origin, stanza); |
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165 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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166 return component_handle_stanza(origin, stanza); |
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167 end |
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168 |
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169 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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170 |
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171 local host_session = hosts[host] |
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172 if host_session and host_session.type == "local" then |
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173 -- Local host |
|
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174 local user = host_session.sessions[node]; |
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175 if user then |
| 72 | 176 local res = user.sessions[resource]; |
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177 if res then -- resource is online... |
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178 res.send(stanza); -- Yay \o/ |
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179 else |
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180 -- if we get here, resource was not specified or was unavailable |
|
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181 if stanza.name == "presence" then |
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182 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then |
|
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diff
changeset
|
183 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
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184 elseif not resource then -- sender is available or unavailable or error |
|
200
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diff
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185 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources. |
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diff
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|
186 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription? |
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diff
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187 stanza.attr.to = session.full_jid; -- reset at the end of function |
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188 session.send(stanza); |
|
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189 end |
|
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190 end |
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191 end |
|
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192 elseif stanza.name == "message" then -- select a resource to recieve message |
|
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diff
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|
193 stanza.attr.to = to_bare; |
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194 if stanza.attr.type == 'headline' then |
|
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195 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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196 if session.presence and session.priority >= 0 then |
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197 session.send(stanza); |
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198 end |
|
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199 end |
|
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diff
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200 elseif resource and stanza.attr.type == 'groupchat' then |
|
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201 -- Groupchat message sent to offline resource |
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202 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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203 else |
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|
204 local count = 0; |
|
1212
3be23cf5a659
stanza_router: Break off resource selection for messages into a standalone function
Matthew Wild <mwild1@gmail.com>
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diff
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|
205 for _, session in ipairs(select_best_resources(user)) do |
|
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|
206 session.send(stanza); |
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|
207 count = count + 1; |
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|
208 end |
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changeset
|
209 if count == 0 and (stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type) then |
|
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diff
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|
210 offlinemanager.store(node, host, stanza); |
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211 -- TODO deal with storage errors |
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|
212 end |
|
200
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diff
changeset
|
213 end |
|
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diff
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|
214 elseif stanza.attr.type == "get" or stanza.attr.type == "set" then |
|
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diff
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|
215 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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|
216 end |
|
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|
217 end |
|
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|
218 else |
|
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Working presence, presence probes and other fixes
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|
219 -- user not online |
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220 if user_exists(node, host) then |
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221 if stanza.name == "presence" then |
|
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diff
changeset
|
222 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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diff
changeset
|
223 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
|
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|
224 else |
|
175
5f71d290bb44
Routing code reorganization
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diff
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|
225 -- TODO send unavailable presence or unsubscribed |
|
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226 end |
|
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diff
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227 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority |
|
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Change the to attribute of messages to the recipients' bare JID when the recipient/resource is offline.
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|
228 stanza.attr.to = to_bare; -- TODO not in RFC, but seems obvious. Should discuss on the mailing list. |
|
249
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diff
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229 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then |
|
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|
230 offlinemanager.store(node, host, stanza); |
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231 -- FIXME don't store messages with only chat state notifications |
|
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diff
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232 elseif stanza.attr.type == "groupchat" then |
|
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diff
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|
233 local reply = st.error_reply(stanza, "cancel", "service-unavailable"); |
|
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parents:
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diff
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|
234 reply.attr.from = to; |
|
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parents:
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diff
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|
235 origin.send(reply); |
|
249
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237
diff
changeset
|
236 end |
|
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Added basic offline message support
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237
diff
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|
237 -- TODO allow configuration of offline storage |
|
1fc47cf5d144
Added basic offline message support
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237
diff
changeset
|
238 -- TODO send error if not storing offline |
|
854
b9cfc9d5496a
core.stanza_router: Don't bounce errors to iq type=result/error
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parents:
848
diff
changeset
|
239 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
Waqas Hussain <waqas20@gmail.com>
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diff
changeset
|
240 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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Working presence, presence probes and other fixes
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106
diff
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|
241 end |
|
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|
242 else -- user does not exist |
|
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|
243 -- 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
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|
244 if stanza.name == "presence" then |
|
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diff
changeset
|
245 local t = stanza.attr.type; |
|
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More error replies for offline and non-existing users
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diff
changeset
|
246 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
|
247 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"})); |
|
113
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Working presence, presence probes and other fixes
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248 end |
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249 -- else ignore |
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250 elseif stanza.attr.type ~= "error" and (stanza.name ~= "iq" or stanza.attr.type ~= "result") then |
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251 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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252 end |
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253 end |
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254 end |
| 148 | 255 elseif origin.type == "c2s" then |
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256 -- Remote host |
| 170 | 257 local xmlns = stanza.attr.xmlns; |
| 148 | 258 --stanza.attr.xmlns = "jabber:server"; |
| 259 stanza.attr.xmlns = nil; | |
| 146 | 260 log("debug", "sending s2s stanza: %s", tostring(stanza)); |
| 170 | 261 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors |
| 262 stanza.attr.xmlns = xmlns; -- reset | |
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263 elseif origin.type == "component" or origin.type == "local" then |
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264 -- Route via s2s for components and modules |
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265 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host); |
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266 send_s2s(origin.host, host, stanza); |
| 148 | 267 else |
| 268 log("warn", "received stanza from unhandled connection type: %s", origin.type); | |
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269 end |
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270 stanza.attr.to = to; -- reset |
| 30 | 271 end |
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272 |
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273 function select_best_resources(user) |
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274 local priority = 0; |
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275 local recipients = {}; |
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276 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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277 if session.presence then |
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278 local p = session.priority; |
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279 if p > priority then |
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280 priority = p; |
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281 recipients = {session}; |
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282 elseif p == priority then |
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283 t_insert(recipients, session); |
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284 end |
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285 end |
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286 end |
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287 return recipients; |
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288 end |
