Software / code / prosody
Annotate
core/stanza_router.lua @ 894:b61c3589cd7b
Don't reject some valid IQs. Thanks to elmex for spotting.
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Sat, 14 Mar 2009 16:03:48 +0000 |
| parent | 854:b9cfc9d5496a |
| child | 897:aeb05598dec1 |
| 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; |
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37 local pairs = pairs; |
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38 local ipairs = ipairs; |
| 145 | 39 |
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40 local jid_split = require "util.jid".split; |
| 718 | 41 local jid_prepped_split = require "util.jid".prepped_split; |
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42 local print = print; |
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43 local function checked_error_reply(origin, stanza) |
| 718 | 44 if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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45 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error? |
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46 end |
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47 end |
| 30 | 48 |
| 49 function core_process_stanza(origin, stanza) | |
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50 (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag()) |
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51 |
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52 if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end -- FIXME Hack. This should be removed when we fix namespace handling. |
| 73 | 53 -- TODO verify validity of stanza (as well as JID validity) |
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54 if stanza.name == "iq" and #stanza.tags > 1 then |
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55 if stanza.attr.type == "set" or stanza.attr.type == "get" then |
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56 error("Invalid IQ"); |
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57 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 origin.type == "c2s" and stanza.name == "presence" and to ~= nil and not(origin.roster[to_bare] and (origin.roster[to_bare].subscription == "both" or origin.roster[to_bare].subscription == "from")) then -- directed presence |
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109 origin.directed = origin.directed or {}; |
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110 origin.directed[to] = true; |
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111 --t_insert(origin.directed, to); -- FIXME does it make more sense to add to_bare rather than to? |
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112 end |
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113 if not to then |
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114 core_handle_stanza(origin, stanza); |
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115 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server |
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116 core_handle_stanza(origin, stanza); |
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117 elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then |
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118 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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119 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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120 component_handle_stanza(origin, stanza); |
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121 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
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122 component_handle_stanza(origin, stanza); |
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123 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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124 component_handle_stanza(origin, stanza); |
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125 elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
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126 handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
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127 elseif hosts[host] and hosts[host].type == "local" and stanza.name == "iq" and not resource then -- directed at bare JID |
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128 core_handle_stanza(origin, stanza); |
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129 else |
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130 core_route_stanza(origin, stanza); |
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131 end |
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132 else |
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133 core_handle_stanza(origin, stanza); |
|
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134 end |
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135 end |
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136 |
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137 -- This function handles stanzas which are not routed any further, |
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138 -- that is, they are handled by this server |
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139 function core_handle_stanza(origin, stanza) |
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140 -- Handlers |
|
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141 if modules_handle_stanza(select(2, jid_split(stanza.attr.to)) or origin.host, origin, stanza) then return; end |
|
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142 if origin.type == "c2s" or origin.type == "s2sin" then |
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143 if origin.type == "c2s" then |
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144 if stanza.name == "presence" and origin.roster then |
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145 if stanza.attr.type == nil or stanza.attr.type == "unavailable" then |
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146 handle_normal_presence(origin, stanza, core_route_stanza); |
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147 else |
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148 log("warn", "Unhandled c2s presence: %s", tostring(stanza)); |
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149 checked_error_reply(origin, stanza); |
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150 end |
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151 else |
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152 log("warn", "Unhandled c2s stanza: %s", tostring(stanza)); |
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153 checked_error_reply(origin, stanza); |
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154 end |
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155 else -- s2s stanzas |
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156 log("warn", "Unhandled s2s stanza: %s", tostring(stanza)); |
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157 checked_error_reply(origin, stanza); |
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158 end |
| 145 | 159 else |
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160 log("warn", "Unhandled %s stanza: %s", origin.type, tostring(stanza)); |
|
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161 checked_error_reply(origin, stanza); |
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162 end |
| 30 | 163 end |
| 164 | |
| 165 function core_route_stanza(origin, stanza) | |
| 166 -- Hooks | |
|
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167 --- ...later |
| 207 | 168 |
| 30 | 169 -- Deliver |
|
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170 local to = stanza.attr.to; |
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171 local node, host, resource = jid_split(to); |
| 170 | 172 local to_bare = node and (node.."@"..host) or host; -- bare JID |
| 173 local from = stanza.attr.from; | |
| 174 local from_node, from_host, from_resource = jid_split(from); | |
| 175 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
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176 |
|
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177 -- Auto-detect origin if not specified |
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178 origin = origin or hosts[from_host]; |
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179 if not origin then return false; end |
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180 |
|
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181 if hosts[to] and hosts[to].type == "component" then -- hack to allow components to handle node@server/resource and server/resource |
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182 return component_handle_stanza(origin, stanza); |
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183 elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
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184 return component_handle_stanza(origin, stanza); |
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185 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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186 return component_handle_stanza(origin, stanza); |
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parents:
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187 end |
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188 |
| 151 | 189 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end |
|
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190 |
|
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191 local host_session = hosts[host] |
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192 if host_session and host_session.type == "local" then |
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193 -- Local host |
|
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194 local user = host_session.sessions[node]; |
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195 if user then |
| 72 | 196 local res = user.sessions[resource]; |
|
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197 if not res then |
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198 -- if we get here, resource was not specified or was unavailable |
|
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199 if stanza.name == "presence" then |
| 151 | 200 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
|
321
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|
201 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
| 151 | 202 else -- sender is available or unavailable |
|
200
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203 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources. |
|
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diff
changeset
|
204 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription? |
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205 stanza.attr.to = session.full_jid; -- reset at the end of function |
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|
206 session.send(stanza); |
|
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|
207 end |
|
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|
208 end |
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|
209 end |
|
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|
210 elseif stanza.name == "message" then -- select a resource to recieve message |
|
784
1de8a32f81e9
Change the to attribute of messages to the recipients' bare JID when the recipient/resource is offline.
Waqas Hussain <waqas20@gmail.com>
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|
211 stanza.attr.to = to_bare; |
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|
212 if stanza.attr.type == 'headline' then |
|
783
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|
213 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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|
214 if session.presence and session.priority >= 0 then |
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215 session.send(stanza); |
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|
216 end |
|
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217 end |
|
848
b1f3977fd140
core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
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diff
changeset
|
218 elseif resource and stanza.attr.type == 'groupchat' then |
|
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219 -- Groupchat message sent to offline resource |
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220 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
|
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221 else |
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222 local priority = 0; |
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223 local recipients = {}; |
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224 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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225 if session.presence then |
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226 local p = session.priority; |
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227 if p > priority then |
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228 priority = p; |
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229 recipients = {session}; |
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230 elseif p == priority then |
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231 t_insert(recipients, session); |
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232 end |
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233 end |
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234 end |
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|
235 local count = 0; |
|
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|
236 for _, session in ipairs(recipients) do |
|
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|
237 session.send(stanza); |
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|
238 count = count + 1; |
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|
239 end |
|
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|
240 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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|
241 offlinemanager.store(node, host, stanza); |
|
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242 -- TODO deal with storage errors |
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243 end |
|
200
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diff
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|
244 end |
|
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|
245 else |
|
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|
246 -- TODO send IQ error |
|
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|
247 end |
|
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|
248 else |
|
121
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|
249 -- User + resource is online... |
| 170 | 250 stanza.attr.to = res.full_jid; -- reset at the end of function |
|
186
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sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
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diff
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|
251 res.send(stanza); -- Yay \o/ |
|
106
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252 end |
|
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253 else |
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254 -- user not online |
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255 if user_exists(node, host) then |
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256 if stanza.name == "presence" then |
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257 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
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258 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
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259 else |
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260 -- TODO send unavailable presence or unsubscribed |
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261 end |
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262 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority |
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263 stanza.attr.to = to_bare; -- TODO not in RFC, but seems obvious. Should discuss on the mailing list. |
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264 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then |
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265 offlinemanager.store(node, host, stanza); |
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266 -- FIXME don't store messages with only chat state notifications |
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267 elseif stanza.attr.type == "groupchat" then |
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268 local reply = st.error_reply(stanza, "cancel", "service-unavailable"); |
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269 reply.attr.from = to; |
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270 origin.send(reply); |
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271 end |
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272 -- TODO allow configuration of offline storage |
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273 -- TODO send error if not storing offline |
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274 elseif stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then |
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275 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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276 end |
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277 else -- user does not exist |
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278 -- 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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279 if stanza.name == "presence" then |
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280 local t = stanza.attr.type; |
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281 if t == "subscribe" or t == "probe" then |
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282 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"})); |
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283 end |
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284 -- else ignore |
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285 elseif stanza.attr.type ~= "error" and (stanza.name ~= "iq" or stanza.attr.type ~= "result") then |
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286 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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287 end |
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288 end |
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289 end |
| 148 | 290 elseif origin.type == "c2s" then |
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291 -- Remote host |
| 170 | 292 local xmlns = stanza.attr.xmlns; |
| 148 | 293 --stanza.attr.xmlns = "jabber:server"; |
| 294 stanza.attr.xmlns = nil; | |
| 146 | 295 log("debug", "sending s2s stanza: %s", tostring(stanza)); |
| 170 | 296 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors |
| 297 stanza.attr.xmlns = xmlns; -- reset | |
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298 elseif origin.type == "component" or origin.type == "local" then |
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299 -- Route via s2s for components and modules |
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300 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host); |
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301 send_s2s(origin.host, host, stanza); |
| 148 | 302 else |
| 303 log("warn", "received stanza from unhandled connection type: %s", origin.type); | |
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304 end |
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305 stanza.attr.to = to; -- reset |
| 30 | 306 end |
