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core/stanza_router.lua @ 1288:d2dc0954ebfd
mod_iq: Limit sub-events to get and set IQs
author | Waqas Hussain <waqas20@gmail.com> |
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date | Tue, 02 Jun 2009 20:18:02 +0500 |
parent | 1273:85353014ff34 |
child | 1292:b18c1ad7fcb6 |
rev | line source |
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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 = prosody.events.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.attr.type == "set" and stanza.tags[1] 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 -- authenticated client isn't bound and current stanza is not a bind request |
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68 origin.send(st.error_reply(stanza, "auth", "not-authorized")); -- FIXME maybe allow stanzas to account or server |
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69 end |
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70 |
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71 -- TODO also, stanzas should be returned to their original state before the function ends |
145 | 72 if origin.type == "c2s" then |
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73 stanza.attr.from = origin.full_jid; |
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74 end |
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75 local to, xmlns = stanza.attr.to, stanza.attr.xmlns; |
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76 local from = stanza.attr.from; |
718 | 77 local node, host, resource; |
78 local from_node, from_host, from_resource; | |
79 local to_bare, from_bare; | |
80 if to then | |
81 node, host, resource = jid_prepped_split(to); | |
82 if not host then | |
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83 log("warn", "Received stanza with invalid destination JID: %s", to); |
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84 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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85 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The destination address is invalid: "..to)); |
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86 end |
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87 return; |
718 | 88 end |
89 to_bare = node and (node.."@"..host) or host; -- bare JID | |
90 if resource then to = to_bare.."/"..resource; else to = to_bare; end | |
91 stanza.attr.to = to; | |
92 end | |
93 if from then | |
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94 -- We only stamp the 'from' on c2s stanzas, so we still need to check validity |
718 | 95 from_node, from_host, from_resource = jid_prepped_split(from); |
96 if not from_host then | |
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97 log("warn", "Received stanza with invalid source JID: %s", from); |
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98 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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99 origin.send(st.error_reply(stanza, "modify", "jid-malformed", "The source address is invalid: "..from)); |
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100 end |
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101 return; |
718 | 102 end |
103 from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
104 if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end | |
105 stanza.attr.from = from; | |
106 end | |
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107 |
213 | 108 --[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us? |
109 log("warn", "stanza recieved for a non-local server"); | |
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110 return; -- FIXME what should we do here? |
213 | 111 end]] -- FIXME |
207 | 112 |
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113 if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == "jabber:client" then |
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114 if origin.type == "s2sin" and not origin.dummy then |
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115 local host_status = origin.hosts[from_host]; |
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116 if not host_status or not host_status.authed then -- remote server trying to impersonate some other server? |
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117 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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118 return; -- FIXME what should we do here? does this work with subdomains? |
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119 end |
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120 end |
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121 core_post_stanza(origin, stanza); |
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122 else |
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123 local h = hosts[stanza.attr.to or origin.host or origin.to_host]; |
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124 if h then |
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125 local event; |
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126 if stanza.attr.xmlns == "jabber:client" then |
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127 if stanza.name == "iq" and (stanza.attr.type == "set" or stanza.attr.type == "get") then |
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128 event = "stanza/iq/"..stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name; |
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129 else |
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130 event = "stanza/"..stanza.name; |
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131 end |
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132 else |
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133 event = "stanza/"..stanza.attr.xmlns..":"..stanza.name; |
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134 end |
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135 if h.events.fire_event(event, {origin = origin, stanza = stanza}) then return; end |
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136 end |
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137 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
119
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138 end |
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|
139 end |
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|
140 |
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141 function core_post_stanza(origin, stanza) |
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142 local to = stanza.attr.to; |
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143 local node, host, resource = jid_split(to); |
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144 local to_bare = node and (node.."@"..host) or host; -- bare JID |
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145 |
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146 local to_type; |
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147 if node then |
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148 if resource then |
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149 to_type = '/full'; |
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150 else |
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151 to_type = '/bare'; |
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152 end |
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153 else |
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154 if host then |
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155 to_type = '/host'; |
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156 else |
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157 to_type = '/bare'; |
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158 end |
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159 end |
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160 |
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161 local event_data = {origin=origin, stanza=stanza}; |
1228
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162 if origin.full_jid then -- c2s connection |
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163 if hosts[origin.host].events.fire_event('pre-'..stanza.name..to_type, event_data) then return; end -- do preprocessing |
1228
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164 end |
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165 local h = hosts[to_bare] or hosts[host or origin.host]; |
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166 if h then |
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167 if h.type == "component" then |
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168 component_handle_stanza(origin, stanza); |
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169 return; |
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|
170 else |
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171 if h.events.fire_event(stanza.name..to_type, event_data) then return; end -- do processing |
1228
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172 end |
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173 end |
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|
174 |
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175 if host and fire_event(host.."/"..stanza.name, event_data) then |
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176 -- event handled |
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177 elseif stanza.name == "presence" and origin.host and fire_event(origin.host.."/"..stanza.name, event_data) then |
1172
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178 -- event handled |
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179 elseif not to then |
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180 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
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181 elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server |
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182 modules_handle_stanza(host or origin.host or origin.to_host, 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 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 component_handle_stanza(origin, stanza); |
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|
187 elseif hosts[host] and hosts[host].type == "local" and stanza.name == "iq" and not resource then -- directed at bare JID |
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|
188 modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza); |
145 | 189 else |
1172
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diff
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|
190 core_route_stanza(origin, stanza); |
71
fbb4ef1da82e
Added: Local stanza routing
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diff
changeset
|
191 end |
30 | 192 end |
193 | |
194 function core_route_stanza(origin, stanza) | |
195 -- Hooks | |
68
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|
196 --- ...later |
207 | 197 |
30 | 198 -- Deliver |
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diff
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|
199 local to = stanza.attr.to; |
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diff
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200 local node, host, resource = jid_split(to); |
170 | 201 local to_bare = node and (node.."@"..host) or host; -- bare JID |
202 local from = stanza.attr.from; | |
203 local from_node, from_host, from_resource = jid_split(from); | |
204 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID | |
113
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Working presence, presence probes and other fixes
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diff
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|
205 |
372
e7c1e30d06d5
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diff
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|
206 -- Auto-detect origin if not specified |
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diff
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|
207 origin = origin or hosts[from_host]; |
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diff
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|
208 if not origin then return false; end |
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parents:
360
diff
changeset
|
209 |
1168
dd523bfc9ea9
Dropped support for resource based components
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1167
diff
changeset
|
210 if hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server |
781
191b9f0e5485
Fixed: Some presence stanzas from local users were not being routed correctly to components (ghosts in mod_muc)
Waqas Hussain <waqas20@gmail.com>
parents:
780
diff
changeset
|
211 return component_handle_stanza(origin, stanza); |
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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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diff
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|
212 elseif hosts[host] and hosts[host].type == "component" then -- directed at a component |
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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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diff
changeset
|
213 return component_handle_stanza(origin, stanza); |
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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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parents:
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diff
changeset
|
214 end |
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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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parents:
780
diff
changeset
|
215 |
966
d2692d427496
Fixed: Issue with presence error routing
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parents:
924
diff
changeset
|
216 if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error") then resource = nil; end |
113
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106
diff
changeset
|
217 |
68
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Beginnings of real stanza routing
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66
diff
changeset
|
218 local host_session = hosts[host] |
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diff
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|
219 if host_session and host_session.type == "local" then |
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diff
changeset
|
220 -- Local host |
71
fbb4ef1da82e
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diff
changeset
|
221 local user = host_session.sessions[node]; |
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diff
changeset
|
222 if user then |
72 | 223 local res = user.sessions[resource]; |
1169
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|
224 if res then -- resource is online... |
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|
225 res.send(stanza); -- Yay \o/ |
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diff
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|
226 else |
71
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diff
changeset
|
227 -- if we get here, resource was not specified or was unavailable |
106
f2a3d204a76a
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diff
changeset
|
228 if stanza.name == "presence" then |
966
d2692d427496
Fixed: Issue with presence error routing
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parents:
924
diff
changeset
|
229 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
Waqas Hussain <waqas20@gmail.com>
parents:
274
diff
changeset
|
230 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
966
d2692d427496
Fixed: Issue with presence error routing
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diff
changeset
|
231 elseif not resource then -- sender is available or unavailable or error |
200
5e8b3cce798f
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199
diff
changeset
|
232 for _, session in pairs(user.sessions) do -- presence broadcast to all user resources. |
5e8b3cce798f
Priority based message routing, etc
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parents:
199
diff
changeset
|
233 if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription? |
5e8b3cce798f
Priority based message routing, etc
Waqas Hussain <waqas20@gmail.com>
parents:
199
diff
changeset
|
234 stanza.attr.to = session.full_jid; -- reset at the end of function |
5e8b3cce798f
Priority based message routing, etc
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parents:
199
diff
changeset
|
235 session.send(stanza); |
113
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Working presence, presence probes and other fixes
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106
diff
changeset
|
236 end |
106
f2a3d204a76a
Added: presence broadcast
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parents:
105
diff
changeset
|
237 end |
f2a3d204a76a
Added: presence broadcast
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parents:
105
diff
changeset
|
238 end |
113
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Working presence, presence probes and other fixes
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106
diff
changeset
|
239 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>
parents:
783
diff
changeset
|
240 stanza.attr.to = to_bare; |
1de8a32f81e9
Change the to attribute of messages to the recipients' bare JID when the recipient/resource is offline.
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parents:
783
diff
changeset
|
241 if stanza.attr.type == 'headline' then |
783
defb0119f80f
Stanza router: Message to bare JID fixes
Waqas Hussain <waqas20@gmail.com>
parents:
781
diff
changeset
|
242 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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Stanza router: Message to bare JID fixes
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diff
changeset
|
243 if session.presence and session.priority >= 0 then |
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diff
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|
244 session.send(stanza); |
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diff
changeset
|
245 end |
106
f2a3d204a76a
Added: presence broadcast
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parents:
105
diff
changeset
|
246 end |
1273
85353014ff34
stanza_router: Reply with an error on groupchat messages to bare JID
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parents:
1270
diff
changeset
|
247 elseif stanza.attr.type == 'groupchat' then |
848
b1f3977fd140
core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
Matthew Wild <mwild1@gmail.com>
parents:
789
diff
changeset
|
248 -- Groupchat message sent to offline resource |
b1f3977fd140
core.stanza_router: Reply with error to groupchat messages directed at unavailable resources or offline users
Matthew Wild <mwild1@gmail.com>
parents:
789
diff
changeset
|
249 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
783
defb0119f80f
Stanza router: Message to bare JID fixes
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parents:
781
diff
changeset
|
250 else |
defb0119f80f
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781
diff
changeset
|
251 local count = 0; |
1212
3be23cf5a659
stanza_router: Break off resource selection for messages into a standalone function
Matthew Wild <mwild1@gmail.com>
parents:
1191
diff
changeset
|
252 for _, session in ipairs(select_best_resources(user)) do |
783
defb0119f80f
Stanza router: Message to bare JID fixes
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parents:
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diff
changeset
|
253 session.send(stanza); |
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diff
changeset
|
254 count = count + 1; |
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Stanza router: Message to bare JID fixes
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parents:
781
diff
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|
255 end |
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256 if count == 0 and (stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type) then |
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257 offlinemanager.store(node, host, stanza); |
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258 -- TODO deal with storage errors |
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259 end |
200
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Priority based message routing, etc
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diff
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260 end |
967
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Fixed: Send correct error reply for IQs directed at unavailable resources
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261 elseif stanza.attr.type == "get" or stanza.attr.type == "set" then |
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262 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
71
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263 end |
106
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264 end |
71
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265 else |
113
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266 -- user not online |
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267 if user_exists(node, host) then |
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268 if stanza.name == "presence" then |
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269 if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then |
321
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270 handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
113
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271 else |
175
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272 -- TODO send unavailable presence or unsubscribed |
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273 end |
642
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274 elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority |
784
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275 stanza.attr.to = to_bare; -- TODO not in RFC, but seems obvious. Should discuss on the mailing list. |
249
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276 if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then |
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277 offlinemanager.store(node, host, stanza); |
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diff
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278 -- FIXME don't store messages with only chat state notifications |
848
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279 elseif stanza.attr.type == "groupchat" then |
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280 local reply = st.error_reply(stanza, "cancel", "service-unavailable"); |
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281 reply.attr.from = to; |
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282 origin.send(reply); |
249
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283 end |
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284 -- TODO allow configuration of offline storage |
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285 -- TODO send error if not storing offline |
854
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286 elseif stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then |
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287 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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288 end |
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289 else -- user does not exist |
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290 -- 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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291 if stanza.name == "presence" then |
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292 local t = stanza.attr.type; |
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293 if t == "subscribe" or t == "probe" then |
186
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diff
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294 origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"})); |
113
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295 end |
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296 -- else ignore |
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diff
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297 elseif stanza.attr.type ~= "error" and (stanza.name ~= "iq" or stanza.attr.type ~= "result") then |
186
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sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
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diff
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298 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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299 end |
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diff
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300 end |
71
fbb4ef1da82e
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68
diff
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301 end |
148 | 302 elseif origin.type == "c2s" then |
68
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diff
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303 -- Remote host |
170 | 304 local xmlns = stanza.attr.xmlns; |
148 | 305 --stanza.attr.xmlns = "jabber:server"; |
306 stanza.attr.xmlns = nil; | |
146 | 307 log("debug", "sending s2s stanza: %s", tostring(stanza)); |
170 | 308 send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors |
309 stanza.attr.xmlns = xmlns; -- reset | |
210
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310 elseif origin.type == "component" or origin.type == "local" then |
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311 -- Route via s2s for components and modules |
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312 log("debug", "Routing outgoing stanza for %s to %s", origin.host, host); |
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313 send_s2s(origin.host, host, stanza); |
148 | 314 else |
315 log("warn", "received stanza from unhandled connection type: %s", origin.type); | |
68
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diff
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|
316 end |
113
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317 stanza.attr.to = to; -- reset |
30 | 318 end |
1212
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319 |
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320 function select_best_resources(user) |
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321 local priority = 0; |
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322 local recipients = {}; |
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323 for _, session in pairs(user.sessions) do -- find resource with greatest priority |
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324 if session.presence then |
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325 local p = session.priority; |
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326 if p > priority then |
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327 priority = p; |
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328 recipients = {session}; |
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329 elseif p == priority then |
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330 t_insert(recipients, session); |
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331 end |
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|
332 end |
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|
333 end |
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|
334 return recipients; |
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|
335 end |