Software / code / prosody
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core/stanza_router.lua @ 774:4885c6e101b4
stanza_router: Fix for when clients don't specify priority in initial presence
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Mon, 09 Feb 2009 13:48:11 +0000 |
| parent | 760:90ce865eebd8 |
| child | 785:31d5be1371cf |
| rev | line source |
|---|---|
| 759 | 1 -- Prosody IM v0.3 |
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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 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 |
| 145 | 21 local s2s_verify_dialback = require "core.s2smanager".verify_dialback; |
| 146 | 22 local s2s_make_authenticated = require "core.s2smanager".make_authenticated; |
| 191 | 23 |
| 24 local modules_handle_stanza = require "core.modulemanager".handle_stanza; | |
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25 local component_handle_stanza = require "core.componentmanager".handle_stanza; |
| 191 | 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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30 |
| 145 | 31 local format = string.format; |
| 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; |
| 145 | 37 |
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38 local jid_split = require "util.jid".split; |
| 718 | 39 local jid_prepped_split = require "util.jid".prepped_split; |
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40 local print = print; |
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41 local function checked_error_reply(origin, stanza) |
| 718 | 42 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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43 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error? |
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44 end |
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45 end |
| 30 | 46 |
| 47 function core_process_stanza(origin, stanza) | |
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48 (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag()) |
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49 |
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50 if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end -- FIXME Hack. This should be removed when we fix namespace handling. |
| 73 | 51 -- TODO verify validity of stanza (as well as JID validity) |
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52 if stanza.name == "iq" and not(#stanza.tags == 1 and stanza.tags[1].attr.xmlns) then |
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53 if stanza.attr.type == "set" or stanza.attr.type == "get" then |
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54 error("Invalid IQ"); |
| 148 | 55 elseif #stanza.tags > 1 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then |
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56 error("Invalid IQ"); |
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57 end |
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58 end |
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59 |
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60 if origin.type == "c2s" and not origin.full_jid |
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61 and not(stanza.name == "iq" and stanza.tags[1].name == "bind" |
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62 and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then |
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63 error("Client MUST bind resource after auth"); |
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64 end |
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65 |
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66 -- TODO also, stanzas should be returned to their original state before the function ends |
| 145 | 67 if origin.type == "c2s" then |
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68 stanza.attr.from = origin.full_jid; |
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69 end |
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70 local to, xmlns = stanza.attr.to, stanza.attr.xmlns; |
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71 local from = stanza.attr.from; |
| 718 | 72 local node, host, resource; |
| 73 local from_node, from_host, from_resource; | |
| 74 local to_bare, from_bare; | |
| 75 if to then | |
| 76 node, host, resource = jid_prepped_split(to); | |
| 77 if not host then | |
| 78 error("Invalid to JID"); | |
| 79 end | |
| 80 to_bare = node and (node.."@"..host) or host; -- bare JID | |
| 81 if resource then to = to_bare.."/"..resource; else to = to_bare; end | |
| 82 stanza.attr.to = to; | |
| 83 end | |
| 84 if from then | |
| 85 from_node, from_host, from_resource = jid_prepped_split(from); | |
| 86 if not from_host then | |
| 87 error("Invalid from JID"); | |
| 88 end | |
| 89 from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
| 90 if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end | |
| 91 stanza.attr.from = from; | |
| 92 end | |
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93 |
| 213 | 94 --[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us? |
| 95 log("warn", "stanza recieved for a non-local server"); | |
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96 return; -- FIXME what should we do here? |
| 213 | 97 end]] -- FIXME |
| 207 | 98 |
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99 -- FIXME do stanzas not of jabber:client get handled by components? |
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100 if (origin.type == "s2sin" or origin.type == "c2s") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then |
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101 if origin.type == "s2sin" and not origin.dummy then |
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102 local host_status = origin.hosts[from_host]; |
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103 if not host_status or not host_status.authed then -- remote server trying to impersonate some other server? |
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104 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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105 return; -- FIXME what should we do here? does this work with subdomains? |
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106 end |
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107 end |
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108 if not to then |
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109 core_handle_stanza(origin, stanza); |
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110 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server |
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111 core_handle_stanza(origin, stanza); |
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112 elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then |
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113 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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114 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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115 component_handle_stanza(origin, stanza); |
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116 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
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117 component_handle_stanza(origin, stanza); |
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118 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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119 component_handle_stanza(origin, stanza); |
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120 elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
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121 handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
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122 elseif origin.type ~= "c2s" and stanza.name == "iq" and not resource then -- directed at bare JID |
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123 core_handle_stanza(origin, stanza); |
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124 else |
| 641 | 125 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 |
| 126 origin.directed = origin.directed or {}; | |
| 127 t_insert(origin.directed, to); -- FIXME does it make more sense to add to_bare rather than to? | |
| 128 end | |
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129 core_route_stanza(origin, stanza); |
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130 end |
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131 else |
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132 core_handle_stanza(origin, stanza); |
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133 end |
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134 end |
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135 |
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136 -- This function handles stanzas which are not routed any further, |
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137 -- that is, they are handled by this server |
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138 function core_handle_stanza(origin, stanza) |
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139 -- Handlers |
|
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140 if modules_handle_stanza(select(2, jid_split(stanza.attr.to)) or origin.host, origin, stanza) then return; end |
|
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141 if origin.type == "c2s" or origin.type == "s2sin" then |
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142 if origin.type == "c2s" then |
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143 if stanza.name == "presence" and origin.roster then |
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144 if stanza.attr.type == nil or stanza.attr.type == "unavailable" then |
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145 handle_normal_presence(origin, stanza, core_route_stanza); |
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146 else |
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147 log("warn", "Unhandled c2s presence: %s", tostring(stanza)); |
|
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148 checked_error_reply(origin, stanza); |
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149 end |
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150 else |
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151 log("warn", "Unhandled c2s stanza: %s", tostring(stanza)); |
|
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152 checked_error_reply(origin, stanza); |
|
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153 end |
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154 else -- s2s stanzas |
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155 log("warn", "Unhandled s2s stanza: %s", tostring(stanza)); |
|
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156 checked_error_reply(origin, stanza); |
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157 end |
| 145 | 158 else |
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159 log("warn", "Unhandled %s stanza: %s", origin.type, tostring(stanza)); |
|
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160 checked_error_reply(origin, stanza); |
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161 end |
| 30 | 162 end |
| 163 | |
| 164 function core_route_stanza(origin, stanza) | |
| 165 -- Hooks | |
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166 --- ...later |
| 207 | 167 |
| 30 | 168 -- Deliver |
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169 local to = stanza.attr.to; |
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170 local node, host, resource = jid_split(to); |
| 170 | 171 local to_bare = node and (node.."@"..host) or host; -- bare JID |
| 172 local from = stanza.attr.from; | |
| 173 local from_node, from_host, from_resource = jid_split(from); | |
| 174 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
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175 |
|
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176 -- Auto-detect origin if not specified |
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177 origin = origin or hosts[from_host]; |
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178 if not origin then return false; end |
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179 |
| 151 | 180 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end |
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181 |
|
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182 local host_session = hosts[host] |
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183 if host_session and host_session.type == "local" then |
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184 -- Local host |
|
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185 local user = host_session.sessions[node]; |
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186 if user then |
| 72 | 187 local res = user.sessions[resource]; |
|
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188 if not res then |
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189 -- if we get here, resource was not specified or was unavailable |
|
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190 if stanza.name == "presence" then |
| 151 | 191 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
|
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192 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
| 151 | 193 else -- sender is available or unavailable |
|
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194 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources. |
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195 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription? |
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196 stanza.attr.to = session.full_jid; -- reset at the end of function |
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197 session.send(stanza); |
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198 end |
|
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199 end |
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200 end |
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201 elseif stanza.name == "message" then -- select a resource to recieve message |
|
200
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202 local priority = 0; |
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203 local recipients = {}; |
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204 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
|
774
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205 local p = session.priority or -1; |
|
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206 if p > priority then |
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207 priority = p; |
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208 recipients = {session}; |
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209 elseif p == priority then |
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|
210 t_insert(recipients, session); |
|
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211 end |
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|
212 end |
|
249
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|
213 local count = 0; |
| 237 | 214 for _, session in pairs(recipients) do |
|
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|
215 session.send(stanza); |
|
249
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216 count = count + 1; |
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|
217 end |
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218 if count == 0 then |
|
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|
219 offlinemanager.store(node, host, stanza); |
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220 -- TODO deal with storage errors |
|
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|
221 end |
|
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222 else |
|
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223 -- TODO send IQ error |
|
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|
224 end |
|
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|
225 else |
|
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|
226 -- User + resource is online... |
| 170 | 227 stanza.attr.to = res.full_jid; -- reset at the end of function |
|
186
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|
228 res.send(stanza); -- Yay \o/ |
|
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|
229 end |
|
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|
230 else |
|
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231 -- user not online |
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232 if user_exists(node, host) then |
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233 if stanza.name == "presence" then |
|
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|
234 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
|
321
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|
235 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
|
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236 else |
|
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237 -- TODO send unavailable presence or unsubscribed |
|
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238 end |
|
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239 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority |
|
249
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240 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then |
|
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241 offlinemanager.store(node, host, stanza); |
|
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242 -- FIXME don't store messages with only chat state notifications |
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|
243 end |
|
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|
244 -- TODO allow configuration of offline storage |
|
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245 -- TODO send error if not storing offline |
|
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246 elseif stanza.name == "iq" then |
|
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247 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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248 end |
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249 else -- user does not exist |
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250 -- 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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251 if stanza.name == "presence" then |
|
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|
252 local t = stanza.attr.type; |
|
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|
253 if t == "subscribe" or t == "probe" then |
|
186
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254 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"})); |
|
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255 end |
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|
256 -- else ignore |
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|
257 else |
|
186
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258 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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259 end |
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260 end |
|
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Added: Local stanza routing
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261 end |
| 148 | 262 elseif origin.type == "c2s" then |
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Beginnings of real stanza routing
Matthew Wild <mwild1@gmail.com>
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263 -- Remote host |
| 170 | 264 local xmlns = stanza.attr.xmlns; |
| 148 | 265 --stanza.attr.xmlns = "jabber:server"; |
| 266 stanza.attr.xmlns = nil; | |
| 146 | 267 log("debug", "sending s2s stanza: %s", tostring(stanza)); |
| 170 | 268 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors |
| 269 stanza.attr.xmlns = xmlns; -- reset | |
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Part 2 of internal components. Should have mentioned that the previous commit was from waqas, this one from me.
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270 elseif origin.type == "component" or origin.type == "local" then |
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Part 2 of internal components. Should have mentioned that the previous commit was from waqas, this one from me.
Matthew Wild <mwild1@gmail.com>
parents:
209
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271 -- Route via s2s for components and modules |
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Part 2 of internal components. Should have mentioned that the previous commit was from waqas, this one from me.
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parents:
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272 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host); |
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Part 2 of internal components. Should have mentioned that the previous commit was from waqas, this one from me.
Matthew Wild <mwild1@gmail.com>
parents:
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273 send_s2s(origin.host, host, stanza); |
| 148 | 274 else |
| 275 log("warn", "received stanza from unhandled connection type: %s", origin.type); | |
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Beginnings of real stanza routing
Matthew Wild <mwild1@gmail.com>
parents:
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changeset
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276 end |
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9026fdad1531
Working presence, presence probes and other fixes
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
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277 stanza.attr.to = to; -- reset |
| 30 | 278 end |
