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Makefile: Set data directory permissions to 750 on install [thanks Dwayne Bent]
1000 | 1 | -- Prosody IM v0.4 |
2 | -- Copyright (C) 2008-2009 Matthew Wild | |
3 | -- Copyright (C) 2008-2009 Waqas Hussain | |
4 | -- | |
5 | -- This project is MIT/X11 licensed. Please see the | |
6 | -- COPYING file in the source package for more information. | |
7 | -- | |
8 | ||
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9 | local log = module._log; |
1000 | 10 | |
11 | local require = require; | |
12 | local pairs, ipairs = pairs, ipairs; | |
13 | local t_concat = table.concat; | |
14 | local s_find = string.find; | |
15 | local tonumber = tonumber; | |
16 | ||
17 | local st = require "util.stanza"; | |
18 | local jid_split = require "util.jid".split; | |
19 | local jid_bare = require "util.jid".bare; | |
20 | local hosts = hosts; | |
21 | ||
22 | local rostermanager = require "core.rostermanager"; | |
23 | local sessionmanager = require "core.sessionmanager"; | |
24 | local offlinemanager = require "core.offlinemanager"; | |
25 | ||
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26 | local _core_route_stanza = core_route_stanza; |
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27 | local core_route_stanza; |
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28 | function core_route_stanza(origin, stanza) |
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29 | if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then |
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30 | local node, host = jid_split(stanza.attr.to); |
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31 | host = hosts[host]; |
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32 | if host and host.type == "local" then |
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33 | handle_inbound_presence_subscriptions_and_probes(origin, stanza, jid_bare(stanza.attr.from), jid_bare(stanza.attr.to), core_route_stanza); |
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34 | return; |
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35 | end |
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36 | end |
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37 | _core_route_stanza(origin, stanza); |
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38 | end |
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39 | |
1000 | 40 | function handle_presence(origin, stanza, from_bare, to_bare, core_route_stanza, inbound) |
41 | local type = stanza.attr.type; | |
42 | if type and type ~= "unavailable" and type ~= "error" then | |
43 | if inbound then | |
44 | handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); | |
45 | else | |
46 | handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); | |
47 | end | |
48 | elseif not inbound and not stanza.attr.to then | |
49 | handle_normal_presence(origin, stanza, core_route_stanza); | |
50 | else | |
51 | core_route_stanza(origin, stanza); | |
52 | end | |
53 | end | |
54 | ||
55 | function handle_normal_presence(origin, stanza, core_route_stanza) | |
56 | if origin.roster then | |
57 | for jid in pairs(origin.roster) do -- broadcast to all interested contacts | |
58 | local subscription = origin.roster[jid].subscription; | |
59 | if subscription == "both" or subscription == "from" then | |
60 | stanza.attr.to = jid; | |
61 | core_route_stanza(origin, stanza); | |
62 | end | |
63 | end | |
64 | local node, host = jid_split(stanza.attr.from); | |
65 | for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources | |
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66 | if res ~= origin and res.presence then -- to resource |
1000 | 67 | stanza.attr.to = res.full_jid; |
68 | core_route_stanza(origin, stanza); | |
69 | end | |
70 | end | |
71 | if stanza.attr.type == nil and not origin.presence then -- initial presence | |
72 | local probe = st.presence({from = origin.full_jid, type = "probe"}); | |
73 | for jid in pairs(origin.roster) do -- probe all contacts we are subscribed to | |
74 | local subscription = origin.roster[jid].subscription; | |
75 | if subscription == "both" or subscription == "to" then | |
76 | probe.attr.to = jid; | |
77 | core_route_stanza(origin, probe); | |
78 | end | |
79 | end | |
80 | for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast from all available resources | |
81 | if res ~= origin and res.presence then | |
82 | res.presence.attr.to = origin.full_jid; | |
83 | core_route_stanza(res, res.presence); | |
84 | res.presence.attr.to = nil; | |
85 | end | |
86 | end | |
87 | if origin.roster.pending then -- resend incoming subscription requests | |
88 | for jid in pairs(origin.roster.pending) do | |
89 | origin.send(st.presence({type="subscribe", from=jid})); -- TODO add to attribute? Use original? | |
90 | end | |
91 | end | |
92 | local request = st.presence({type="subscribe", from=origin.username.."@"..origin.host}); | |
93 | for jid, item in pairs(origin.roster) do -- resend outgoing subscription requests | |
94 | if item.ask then | |
95 | request.attr.to = jid; | |
96 | core_route_stanza(origin, request); | |
97 | end | |
98 | end | |
99 | local offline = offlinemanager.load(node, host); | |
100 | if offline then | |
101 | for _, msg in ipairs(offline) do | |
102 | origin.send(msg); -- FIXME do we need to modify to/from in any way? | |
103 | end | |
104 | offlinemanager.deleteAll(node, host); | |
105 | end | |
106 | end | |
107 | origin.priority = 0; | |
108 | if stanza.attr.type == "unavailable" then | |
109 | origin.presence = nil; | |
110 | if origin.directed then | |
111 | local old_from = stanza.attr.from; | |
112 | stanza.attr.from = origin.full_jid; | |
113 | for jid in pairs(origin.directed) do | |
114 | stanza.attr.to = jid; | |
115 | core_route_stanza(origin, stanza); | |
116 | end | |
117 | stanza.attr.from = old_from; | |
118 | origin.directed = nil; | |
119 | end | |
120 | else | |
121 | origin.presence = stanza; | |
122 | local priority = stanza:child_with_name("priority"); | |
123 | if priority and #priority > 0 then | |
124 | priority = t_concat(priority); | |
125 | if s_find(priority, "^[+-]?[0-9]+$") then | |
126 | priority = tonumber(priority); | |
127 | if priority < -128 then priority = -128 end | |
128 | if priority > 127 then priority = 127 end | |
129 | origin.priority = priority; | |
130 | end | |
131 | end | |
132 | end | |
133 | stanza.attr.to = nil; -- reset it | |
134 | else | |
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135 | log("warn", "presence recieved from client with no roster"); |
1000 | 136 | end |
137 | end | |
138 | ||
139 | function send_presence_of_available_resources(user, host, jid, recipient_session, core_route_stanza) | |
140 | local h = hosts[host]; | |
141 | local count = 0; | |
142 | if h and h.type == "local" then | |
143 | local u = h.sessions[user]; | |
144 | if u then | |
145 | for k, session in pairs(u.sessions) do | |
146 | local pres = session.presence; | |
147 | if pres then | |
148 | pres.attr.to = jid; | |
149 | core_route_stanza(session, pres); | |
150 | pres.attr.to = nil; | |
151 | count = count + 1; | |
152 | end | |
153 | end | |
154 | end | |
155 | end | |
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156 | log("debug", "broadcasted presence of "..count.." resources from "..user.."@"..host.." to "..jid); |
1000 | 157 | return count; |
158 | end | |
159 | ||
160 | function handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza) | |
161 | local node, host = jid_split(from_bare); | |
162 | local st_from, st_to = stanza.attr.from, stanza.attr.to; | |
163 | stanza.attr.from, stanza.attr.to = from_bare, to_bare; | |
164 | log("debug", "outbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare); | |
165 | if stanza.attr.type == "subscribe" then | |
166 | -- 1. route stanza | |
167 | -- 2. roster push (subscription = none, ask = subscribe) | |
168 | if rostermanager.set_contact_pending_out(node, host, to_bare) then | |
169 | rostermanager.roster_push(node, host, to_bare); | |
170 | end -- else file error | |
171 | core_route_stanza(origin, stanza); | |
172 | elseif stanza.attr.type == "unsubscribe" then | |
173 | -- 1. route stanza | |
174 | -- 2. roster push (subscription = none or from) | |
175 | if rostermanager.unsubscribe(node, host, to_bare) then | |
176 | rostermanager.roster_push(node, host, to_bare); -- FIXME do roster push when roster has in fact not changed? | |
177 | end -- else file error | |
178 | core_route_stanza(origin, stanza); | |
179 | elseif stanza.attr.type == "subscribed" then | |
180 | -- 1. route stanza | |
181 | -- 2. roster_push () | |
182 | -- 3. send_presence_of_available_resources | |
183 | if rostermanager.subscribed(node, host, to_bare) then | |
184 | rostermanager.roster_push(node, host, to_bare); | |
185 | end | |
186 | core_route_stanza(origin, stanza); | |
187 | send_presence_of_available_resources(node, host, to_bare, origin, core_route_stanza); | |
188 | elseif stanza.attr.type == "unsubscribed" then | |
189 | -- 1. route stanza | |
190 | -- 2. roster push (subscription = none or to) | |
191 | if rostermanager.unsubscribed(node, host, to_bare) then | |
192 | rostermanager.roster_push(node, host, to_bare); | |
193 | end | |
194 | core_route_stanza(origin, stanza); | |
195 | end | |
196 | stanza.attr.from, stanza.attr.to = st_from, st_to; | |
197 | end | |
198 | ||
199 | function handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza) | |
200 | local node, host = jid_split(to_bare); | |
201 | local st_from, st_to = stanza.attr.from, stanza.attr.to; | |
202 | stanza.attr.from, stanza.attr.to = from_bare, to_bare; | |
203 | log("debug", "inbound presence "..stanza.attr.type.." from "..from_bare.." for "..to_bare); | |
204 | if stanza.attr.type == "probe" then | |
205 | if rostermanager.is_contact_subscribed(node, host, from_bare) then | |
206 | if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then | |
207 | -- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too) | |
208 | end | |
209 | else | |
210 | core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="unsubscribed"})); | |
211 | end | |
212 | elseif stanza.attr.type == "subscribe" then | |
213 | if rostermanager.is_contact_subscribed(node, host, from_bare) then | |
214 | core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="subscribed"})); -- already subscribed | |
215 | -- Sending presence is not clearly stated in the RFC, but it seems appropriate | |
216 | if 0 == send_presence_of_available_resources(node, host, from_bare, origin, core_route_stanza) then | |
217 | -- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too) | |
218 | end | |
219 | else | |
220 | if not rostermanager.is_contact_pending_in(node, host, from_bare) then | |
221 | if rostermanager.set_contact_pending_in(node, host, from_bare) then | |
222 | sessionmanager.send_to_available_resources(node, host, stanza); | |
223 | end -- TODO else return error, unable to save | |
224 | end | |
225 | end | |
226 | elseif stanza.attr.type == "unsubscribe" then | |
227 | if rostermanager.process_inbound_unsubscribe(node, host, from_bare) then | |
228 | rostermanager.roster_push(node, host, from_bare); | |
229 | end | |
230 | elseif stanza.attr.type == "subscribed" then | |
231 | if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then | |
232 | rostermanager.roster_push(node, host, from_bare); | |
233 | end | |
234 | elseif stanza.attr.type == "unsubscribed" then | |
235 | if rostermanager.process_inbound_subscription_cancellation(node, host, from_bare) then | |
236 | rostermanager.roster_push(node, host, from_bare); | |
237 | end | |
238 | end -- discard any other type | |
239 | stanza.attr.from, stanza.attr.to = st_from, st_to; | |
240 | end | |
241 | ||
242 | local function presence_handler(data) | |
243 | local origin, stanza = data.origin, data.stanza; | |
244 | local to = stanza.attr.to; | |
245 | local node, host = jid_split(to); | |
246 | local to_bare = jid_bare(to); | |
247 | local from_bare = jid_bare(stanza.attr.from); | |
248 | if origin.type == "c2s" then | |
249 | if 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 | |
250 | origin.directed = origin.directed or {}; | |
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251 | origin.directed[to] = true; -- FIXME does it make more sense to add to_bare rather than to? |
1000 | 252 | end |
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253 | if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then |
1000 | 254 | handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
255 | elseif not to then | |
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256 | handle_normal_presence(origin, stanza, core_route_stanza); |
1000 | 257 | else |
258 | core_route_stanza(origin, stanza); | |
259 | end | |
260 | elseif (origin.type == "s2sin" or origin.type == "component") and hosts[host] then | |
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261 | if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then |
1000 | 262 | handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza); |
263 | else | |
264 | core_route_stanza(origin, stanza); | |
265 | end | |
266 | end | |
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267 | return true; |
1000 | 268 | end |
269 | ||
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270 | prosody.events.add_handler(module:get_host().."/presence", presence_handler); |
1000 | 271 | module.unload = function() |
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272 | prosody.events.remove_handler(module:get_host().."/presence", presence_handler); |
1000 | 273 | end |
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274 | |
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275 | local outbound_presence_handler = function(data) |
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276 | -- outbound presence recieved |
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277 | local origin, stanza = data.origin, data.stanza; |
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278 | |
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279 | local to = stanza.attr.to; |
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280 | if to then |
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281 | local t = stanza.attr.type; |
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282 | if t ~= nil and t ~= "unavailable" and t ~= "error" then -- check for subscriptions and probes |
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283 | handle_outbound_presence_subscriptions_and_probes(origin, stanza, jid_bare(stanza.attr.from), jid_bare(stanza.attr.to), core_route_stanza); |
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284 | return true; |
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285 | end |
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286 | |
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287 | local to_bare = jid_bare(to); |
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288 | if 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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289 | origin.directed = origin.directed or {}; |
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290 | if t then -- removing from directed presence list on sending an error or unavailable |
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291 | origin.directed[to] = nil; -- FIXME does it make more sense to add to_bare rather than to? |
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292 | else |
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293 | origin.directed[to] = true; -- FIXME does it make more sense to add to_bare rather than to? |
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294 | end |
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295 | end |
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296 | end -- TODO maybe handle normal presence here, instead of letting it pass to incoming handlers? |
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297 | end |
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298 | |
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299 | module:hook("pre-presence/full", outbound_presence_handler); |
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300 | module:hook("pre-presence/bare", outbound_presence_handler); |
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301 | module:hook("pre-presence/host", outbound_presence_handler); |
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302 | |
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303 | module:hook("presence/bare", function(data) |
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304 | -- inbound presence to bare JID recieved |
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305 | local origin, stanza = data.origin, data.stanza; |
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306 | |
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307 | local to = stanza.attr.to; |
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308 | local t = stanza.attr.type; |
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309 | if to then |
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310 | if t ~= nil and t ~= "unavailable" and t ~= "error" then -- check for subscriptions and probes sent to bare JID |
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311 | handle_inbound_presence_subscriptions_and_probes(origin, stanza, jid_bare(stanza.attr.from), jid_bare(stanza.attr.to), core_route_stanza); |
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312 | return true; |
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313 | end |
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314 | |
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315 | local user = bare_sessions[to]; |
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316 | if user then |
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317 | for _, session in pairs(user.sessions) do |
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318 | if session.presence then -- only send to available resources |
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319 | session.send(stanza); |
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320 | end |
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321 | end |
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322 | end -- no resources not online, discard |
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323 | elseif not t or t == "unavailable" then |
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324 | handle_normal_presence(origin, stanza, core_route_stanza); |
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325 | end |
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326 | return true; |
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327 | end); |
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328 | module:hook("presence/full", function(data) |
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329 | -- inbound presence to full JID recieved |
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330 | local origin, stanza = data.origin, data.stanza; |
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331 | |
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332 | local t = stanza.attr.type; |
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333 | if t ~= nil and t ~= "unavailable" and t ~= "error" then -- check for subscriptions and probes sent to full JID |
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334 | handle_inbound_presence_subscriptions_and_probes(origin, stanza, jid_bare(stanza.attr.from), jid_bare(stanza.attr.to), core_route_stanza); |
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335 | return true; |
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336 | end |
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337 | |
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338 | local session = full_sessions[stanza.attr.to]; |
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339 | if session then |
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340 | -- TODO fire post processing event |
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341 | session.send(stanza); |
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342 | end -- resource not online, discard |
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343 | return true; |
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344 | end); |