Mon, 07 Sep 2009 20:53:33 +0500
MUC: Fixed an undefined global access.
1734 | 1 | -- Prosody IM |
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 | ||
9 | local datamanager = require "util.datamanager"; | |
10 | local datetime = require "util.datetime"; | |
11 | ||
12 | local jid_split = require "util.jid".split; | |
13 | local jid_bare = require "util.jid".bare; | |
14 | local st = require "util.stanza"; | |
15 | local log = require "util.logger".init("mod_muc"); | |
16 | local multitable_new = require "util.multitable".new; | |
17 | local t_insert, t_remove = table.insert, table.remove; | |
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18 | local setmetatable = setmetatable; |
1734 | 19 | |
20 | local muc_domain = nil; --module:get_host(); | |
21 | local history_length = 20; | |
22 | ||
23 | ------------ | |
24 | local function filter_xmlns_from_array(array, filters) | |
25 | local count = 0; | |
26 | for i=#array,1,-1 do | |
27 | local attr = array[i].attr; | |
28 | if filters[attr and attr.xmlns] then | |
29 | t_remove(array, i); | |
30 | count = count + 1; | |
31 | end | |
32 | end | |
33 | return count; | |
34 | end | |
35 | local function filter_xmlns_from_stanza(stanza, filters) | |
36 | if filters then | |
37 | if filter_xmlns_from_array(stanza.tags, filters) ~= 0 then | |
38 | return stanza, filter_xmlns_from_array(stanza, filters); | |
39 | end | |
40 | end | |
41 | return stanza, 0; | |
42 | end | |
43 | local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true}; | |
44 | local function get_filtered_presence(stanza) | |
45 | return filter_xmlns_from_stanza(st.clone(stanza), presence_filters); | |
46 | end | |
47 | local kickable_error_conditions = { | |
48 | ["gone"] = true; | |
49 | ["internal-server-error"] = true; | |
50 | ["item-not-found"] = true; | |
51 | ["jid-malformed"] = true; | |
52 | ["recipient-unavailable"] = true; | |
53 | ["redirect"] = true; | |
54 | ["remote-server-not-found"] = true; | |
55 | ["remote-server-timeout"] = true; | |
56 | ["service-unavailable"] = true; | |
57 | }; | |
58 | local function get_kickable_error(stanza) | |
59 | for _, tag in ipairs(stanza.tags) do | |
60 | if tag.name == "error" and tag.attr.xmlns == "jabber:client" then | |
61 | for _, cond in ipairs(tag.tags) do | |
62 | if cond.attr.xmlns == "urn:ietf:params:xml:ns:xmpp-stanzas" then | |
63 | return kickable_error_conditions[cond.name] and cond.name; | |
64 | end | |
65 | end | |
66 | return true; -- malformed error message | |
67 | end | |
68 | end | |
69 | return true; -- malformed error message | |
70 | end | |
71 | local function getUsingPath(stanza, path, getText) | |
72 | local tag = stanza; | |
73 | for _, name in ipairs(path) do | |
74 | if type(tag) ~= 'table' then return; end | |
75 | tag = tag:child_with_name(name); | |
76 | end | |
77 | if tag and getText then tag = table.concat(tag); end | |
78 | return tag; | |
79 | end | |
80 | local function getTag(stanza, path) return getUsingPath(stanza, path); end | |
81 | local function getText(stanza, path) return getUsingPath(stanza, path, true); end | |
82 | ----------- | |
83 | ||
84 | --[[function get_room_disco_info(room, stanza) | |
85 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") | |
86 | :tag("identity", {category='conference', type='text', name=room._data["name"]):up() | |
87 | :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply | |
88 | end | |
89 | function get_room_disco_items(room, stanza) | |
90 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); | |
91 | end -- TODO allow non-private rooms]] | |
92 | ||
93 | -- | |
94 | ||
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95 | local room_mt = {}; |
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96 | room_mt.__index = room_mt; |
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97 | |
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98 | function room_mt:get_default_role(affiliation) |
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99 | if affiliation == "owner" or affiliation == "admin" then |
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100 | return "moderator"; |
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101 | elseif affiliation == "member" or not affiliation then |
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102 | return "participant"; |
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103 | end |
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104 | end |
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105 | |
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106 | function room_mt:broadcast_presence(stanza, code, nick) |
1734 | 107 | stanza = get_filtered_presence(stanza); |
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108 | local data = self._occupants[stanza.attr.from]; |
1734 | 109 | stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) |
110 | :tag("item", {affiliation=data.affiliation, role=data.role, nick=nick}):up(); | |
111 | if code then | |
112 | stanza:tag("status", {code=code}):up(); | |
113 | end | |
114 | local me; | |
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115 | for occupant, o_data in pairs(self._occupants) do |
1734 | 116 | if occupant ~= stanza.attr.from then |
117 | for jid in pairs(o_data.sessions) do | |
118 | stanza.attr.to = jid; | |
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119 | self:route_stanza(stanza); |
1734 | 120 | end |
121 | else | |
122 | me = o_data; | |
123 | end | |
124 | end | |
125 | if me then | |
126 | stanza:tag("status", {code='110'}); | |
127 | for jid in pairs(me.sessions) do | |
128 | stanza.attr.to = jid; | |
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129 | self:route_stanza(stanza); |
1734 | 130 | end |
131 | end | |
132 | end | |
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133 | function room_mt:broadcast_message(stanza, historic) |
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134 | for occupant, o_data in pairs(self._occupants) do |
1734 | 135 | for jid in pairs(o_data.sessions) do |
136 | stanza.attr.to = jid; | |
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137 | self:route_stanza(stanza); |
1734 | 138 | end |
139 | end | |
140 | if historic then -- add to history | |
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141 | local history = self._data['history']; |
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142 | if not history then history = {}; self._data['history'] = history; end |
1734 | 143 | -- stanza = st.clone(stanza); |
144 | stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = datetime.datetime()}):up(); -- XEP-0203 | |
145 | stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) | |
146 | t_insert(history, st.clone(st.preserialize(stanza))); | |
147 | while #history > history_length do t_remove(history, 1) end | |
148 | end | |
149 | end | |
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150 | function room_mt:broadcast_except_nick(stanza, nick) |
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151 | for rnick, occupant in pairs(self._occupants) do |
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152 | if rnick ~= nick then |
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153 | for jid in pairs(occupant.sessions) do |
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154 | stanza.attr.to = jid; |
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155 | self:route_stanza(stanza); |
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156 | end |
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157 | end |
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158 | end |
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159 | end |
1734 | 160 | |
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161 | function room_mt:send_occupant_list(to) |
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162 | local current_nick = self._jid_nick[to]; |
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163 | for occupant, o_data in pairs(self._occupants) do |
1734 | 164 | if occupant ~= current_nick then |
165 | local pres = get_filtered_presence(o_data.sessions[o_data.jid]); | |
166 | pres.attr.to, pres.attr.from = to, occupant; | |
167 | pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) | |
168 | :tag("item", {affiliation=o_data.affiliation, role=o_data.role}):up(); | |
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169 | self:route_stanza(pres); |
1734 | 170 | end |
171 | end | |
172 | end | |
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173 | function room_mt:send_history(to) |
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174 | local history = self._data['history']; -- send discussion history |
1734 | 175 | if history then |
176 | for _, msg in ipairs(history) do | |
177 | msg = st.deserialize(msg); | |
178 | msg.attr.to=to; | |
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179 | self:route_stanza(msg); |
1734 | 180 | end |
181 | end | |
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182 | if self._data['subject'] then |
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183 | self:route_stanza(st.message({type='groupchat', from=self.jid, to=to}):tag("subject"):text(self._data['subject'])); |
1734 | 184 | end |
185 | end | |
186 | ||
187 | local function room_get_disco_info(self, stanza) end | |
188 | local function room_get_disco_items(self, stanza) end | |
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189 | function room_mt:set_subject(current_nick, subject) |
1734 | 190 | -- TODO check nick's authority |
191 | if subject == "" then subject = nil; end | |
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192 | self._data['subject'] = subject; |
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193 | if self.save then self:save(); end |
1734 | 194 | local msg = st.message({type='groupchat', from=current_nick}) |
195 | :tag('subject'):text(subject):up(); | |
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196 | self:broadcast_message(msg, false); |
1734 | 197 | return true; |
198 | end | |
199 | ||
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200 | function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc |
1734 | 201 | local from, to = stanza.attr.from, stanza.attr.to; |
202 | local room = jid_bare(to); | |
203 | local current_nick = self._jid_nick[from]; | |
204 | local type = stanza.attr.type; | |
205 | log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag()); | |
206 | if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end | |
207 | if stanza.name == "presence" then | |
208 | local pr = get_filtered_presence(stanza); | |
209 | pr.attr.from = current_nick; | |
210 | if type == "error" then -- error, kick em out! | |
211 | if current_nick then | |
212 | log("debug", "kicking %s from %s", current_nick, room); | |
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213 | self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) |
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MUC: The MUC lib is now metatable based. Cleaned up code, etc.
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214 | :tag('status'):text('This participant is kicked from the room because he sent an error presence')); -- send unavailable |
1734 | 215 | end |
216 | elseif type == "unavailable" then -- unavailable | |
217 | if current_nick then | |
218 | log("debug", "%s leaving %s", current_nick, room); | |
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219 | local data = self._occupants[current_nick]; |
1734 | 220 | data.role = 'none'; |
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221 | self:broadcast_presence(pr); |
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222 | self._occupants[current_nick] = nil; |
1734 | 223 | self._jid_nick[from] = nil; |
224 | end | |
225 | elseif not type then -- available | |
226 | if current_nick then | |
227 | --if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence | |
228 | if current_nick == to then -- simple presence | |
229 | log("debug", "%s broadcasted presence", current_nick); | |
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230 | self._occupants[current_nick].sessions[from] = pr; |
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231 | self:broadcast_presence(pr); |
1734 | 232 | else -- change nick |
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233 | if self._occupants[to] then |
1734 | 234 | log("debug", "%s couldn't change nick", current_nick); |
235 | origin.send(st.error_reply(stanza, "cancel", "conflict"):tag("x", {xmlns = "http://jabber.org/protocol/muc"})); | |
236 | else | |
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237 | local data = self._occupants[current_nick]; |
1734 | 238 | local to_nick = select(3, jid_split(to)); |
239 | if to_nick then | |
240 | log("debug", "%s (%s) changing nick to %s", current_nick, data.jid, to); | |
241 | local p = st.presence({type='unavailable', from=current_nick}); | |
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242 | self:broadcast_presence(p, '303', to_nick); |
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243 | self._occupants[current_nick] = nil; |
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244 | self._occupants[to] = data; |
1734 | 245 | self._jid_nick[from] = to; |
246 | pr.attr.from = to; | |
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247 | self._occupants[to].sessions[from] = pr; |
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248 | self:broadcast_presence(pr); |
1734 | 249 | else |
250 | --TODO malformed-jid | |
251 | end | |
252 | end | |
253 | end | |
254 | --else -- possible rejoin | |
255 | -- log("debug", "%s had connection replaced", current_nick); | |
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256 | -- self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) |
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MUC: The MUC lib is now metatable based. Cleaned up code, etc.
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257 | -- :tag('status'):text('Replaced by new connection'):up()); -- send unavailable |
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258 | -- self:handle_to_occupant(origin, stanza); -- resend available |
1734 | 259 | --end |
260 | else -- enter room | |
261 | local new_nick = to; | |
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262 | if self._occupants[to] then |
1734 | 263 | new_nick = nil; |
264 | end | |
265 | if not new_nick then | |
266 | log("debug", "%s couldn't join due to nick conflict: %s", from, to); | |
267 | origin.send(st.error_reply(stanza, "cancel", "conflict"):tag("x", {xmlns = "http://jabber.org/protocol/muc"})); | |
268 | else | |
269 | log("debug", "%s joining as %s", from, to); | |
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270 | if not next(self._affiliations) then -- new room, no owners |
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271 | self._affiliations[jid_bare(from)] = "owner"; |
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272 | end |
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273 | local affiliation = self:get_affiliation(from); |
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274 | local role = self:get_default_role(affiliation) |
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275 | if role then -- new occupant |
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276 | self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}}; |
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277 | self._jid_nick[from] = to; |
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278 | self:send_occupant_list(from); |
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279 | pr.attr.from = to; |
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280 | self:broadcast_presence(pr); |
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281 | self:send_history(from); |
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282 | else -- banned |
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283 | origin.send(st.error_reply(stanza, "auth", "forbidden"):tag("x", {xmlns = "http://jabber.org/protocol/muc"})); |
1734 | 284 | end |
285 | end | |
286 | end | |
287 | elseif type ~= 'result' then -- bad type | |
288 | origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? | |
289 | end | |
290 | elseif not current_nick and type ~= "error" and type ~= "result" then -- not in room | |
291 | origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); | |
292 | elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM | |
293 | origin.send(st.error_reply(stanza, "modify", "bad-request")); | |
294 | elseif stanza.name == "message" and type == "error" and get_kickable_error(stanza) then | |
295 | log("debug", "%s kicked from %s for sending an error message", current_nick, room); | |
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296 | self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}):tag('status'):text('This participant is kicked from the room because he sent an error message to another occupant')); -- send unavailable |
1734 | 297 | else -- private stanza |
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298 | local o_data = self._occupants[to]; |
1734 | 299 | if o_data then |
300 | log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid); | |
301 | local jid = o_data.jid; | |
302 | -- TODO if stanza.name=='iq' and type=='get' and stanza.tags[1].attr.xmlns == 'vcard-temp' then jid = jid_bare(jid); end | |
303 | stanza.attr.to, stanza.attr.from = jid, current_nick; | |
304 | self:route_stanza(stanza); | |
305 | elseif type ~= "error" and type ~= "result" then -- recipient not in room | |
306 | origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); | |
307 | end | |
308 | end | |
309 | end | |
310 | ||
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311 | function room_mt:handle_form(origin, stanza) |
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312 | if self:get_affiliation(stanza.attr.from) ~= "owner" then origin.send(st.error_reply(nil, "auth", "forbidden")); return; end |
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313 | if stanza.attr.type == "get" then |
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314 | local title = "Configuration for "..self.jid; |
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315 | origin.send(st.reply(stanza):query("http://jabber.org/protocol/muc#owner") |
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316 | :tag("x", {xmlns='jabber:x:data', type='form'}) |
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317 | :tag("title"):text(title):up() |
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318 | :tag("instructions"):text(title):up() |
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319 | :tag("field", {type='hidden', var='FORM_TYPE'}):tag("value"):text("http://jabber.org/protocol/muc#roomconfig"):up():up() |
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320 | :tag("field", {type='boolean', label='Make Room Persistent?', var='muc#roomconfig_persistentroom'}) |
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321 | :tag("value"):text(self._data.persistent and "1" or "0"):up() |
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322 | :up() |
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323 | :tag("field", {type='boolean', label='Make Room Publicly Searchable?', var='muc#roomconfig_publicroom'}) |
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324 | :tag("value"):text(self._data.hidden and "0" or "1"):up() |
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325 | :up() |
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326 | ); |
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327 | elseif stanza.attr.type == "set" then |
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328 | local query = stanza.tags[1]; |
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329 | local form; |
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330 | for _, tag in ipairs(query.tags) do if tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then form = tag; break; end end |
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331 | if not form then origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return; end |
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332 | if form.attr.type == "cancel" then origin.send(st.reply(stanza)); return; end |
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333 | if form.attr.type ~= "submit" then origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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334 | local fields = {}; |
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335 | for _, field in pairs(form.tags) do |
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336 | if field.name == "field" and field.attr.var and field.tags[1].name == "value" and #field.tags[1].tags == 0 then |
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337 | fields[field.attr.var] = field.tags[1][1] or ""; |
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338 | end |
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339 | end |
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340 | if fields.FORM_TYPE ~= "http://jabber.org/protocol/muc#roomconfig" then origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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341 | |
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342 | local persistent = fields['muc#roomconfig_persistentroom']; |
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343 | if persistent == "0" or persistent == "false" then persistent = nil; elseif persistent == "1" or persistent == "true" then persistent = true; |
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344 | else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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345 | self._data.persistent = persistent; |
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346 | module:log("debug", "persistent=%s", tostring(persistent)); |
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347 | |
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348 | local public = fields['muc#roomconfig_publicroom']; |
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349 | if public == "0" or public == "false" then public = nil; elseif public == "1" or public == "true" then public = true; |
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350 | else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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351 | self._data.hidden = not public and true or nil; |
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352 | |
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353 | if self.save then self:save(true); end |
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354 | origin.send(st.reply(stanza)); |
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355 | end |
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356 | end |
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357 | |
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358 | function room_mt:handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc |
1734 | 359 | local type = stanza.attr.type; |
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360 | local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns; |
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361 | if stanza.name == "iq" then |
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362 | if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" then |
1734 | 363 | origin.send(room_get_disco_info(self, stanza)); |
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364 | elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" then |
1734 | 365 | origin.send(room_get_disco_items(self, stanza)); |
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366 | elseif xmlns == "http://jabber.org/protocol/muc#admin" then |
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367 | local actor = stanza.attr.from; |
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368 | local affiliation = self:get_affiliation(actor); |
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369 | local current_nick = self._jid_nick[actor]; |
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370 | local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation); |
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371 | local item = stanza.tags[1].tags[1]; |
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372 | if item and item.name == "item" then |
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373 | if type == "set" then |
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374 | local callback = function() origin.send(st.reply(stanza)); end |
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375 | if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation |
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376 | local occupant = self._occupants[self.jid.."/"..item.attr.nick]; |
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377 | if occupant then item.attr.jid = occupant.jid; end |
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378 | end |
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379 | if item.attr.affiliation and item.attr.jid and not item.attr.role then |
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380 | local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback); |
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381 | if not success then origin.send(st.error_reply(stanza, errtype, err)); end |
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382 | elseif item.attr.role and item.attr.nick and not item.attr.affiliation then |
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383 | local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback); |
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384 | if not success then origin.send(st.error_reply(stanza, errtype, err)); end |
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385 | else |
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386 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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387 | end |
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388 | elseif type == "get" then |
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389 | local _aff = item.attr.affiliation; |
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390 | local _rol = item.attr.role; |
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391 | if _aff and not _rol then |
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392 | if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then |
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393 | local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); |
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394 | for jid, affiliation in pairs(self._affiliations) do |
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395 | if affiliation == _aff then |
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396 | reply:tag("item", {affiliation = _aff, jid = jid}):up(); |
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397 | end |
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398 | end |
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399 | origin.send(reply); |
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400 | else |
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401 | origin.send(st.error_reply(stanza, "auth", "forbidden")); |
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402 | end |
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403 | elseif _rol and not _aff then |
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404 | if role == "moderator" then |
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405 | -- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway? |
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406 | if _rol == "none" then _rol = nil; end |
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407 | local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); |
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408 | for nick, occupant in pairs(self._occupants) do |
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409 | if occupant.role == _rol then |
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410 | reply:tag("item", {nick = nick, role = _rol or "none", affiliation = occupant.affiliation or "none", jid = occupant.jid}):up(); |
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411 | end |
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412 | end |
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413 | origin.send(reply); |
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414 | else |
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415 | origin.send(st.error_reply(stanza, "auth", "forbidden")); |
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416 | end |
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417 | else |
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418 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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419 | end |
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420 | end |
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421 | elseif type == "set" or type == "get" then |
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422 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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423 | end |
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424 | elseif xmlns == "http://jabber.org/protocol/muc#owner" and (type == "get" or type == "set") and stanza.tags[1].name == "query" then |
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425 | self:handle_form(origin, stanza); |
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426 | elseif type == "set" or type == "get" then |
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427 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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428 | end |
1734 | 429 | elseif stanza.name == "message" and type == "groupchat" then |
430 | local from, to = stanza.attr.from, stanza.attr.to; | |
431 | local room = jid_bare(to); | |
432 | local current_nick = self._jid_nick[from]; | |
433 | if not current_nick then -- not in room | |
434 | origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); | |
435 | else | |
436 | local from = stanza.attr.from; | |
437 | stanza.attr.from = current_nick; | |
438 | local subject = getText(stanza, {"subject"}); | |
439 | if subject then | |
440 | self:set_subject(current_nick, subject); -- TODO use broadcast_message_stanza | |
441 | else | |
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442 | self:broadcast_message(stanza, true); |
1734 | 443 | end |
444 | end | |
445 | elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick | |
446 | local to = stanza.attr.to; | |
447 | local current_nick = self._jid_nick[stanza.attr.from]; | |
448 | if current_nick then | |
449 | stanza.attr.to = current_nick; | |
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450 | self:handle_to_occupant(origin, stanza); |
1734 | 451 | stanza.attr.to = to; |
452 | elseif type ~= "error" and type ~= "result" then | |
453 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); | |
454 | end | |
455 | elseif stanza.name == "message" and not stanza.attr.type and #stanza.tags == 1 and self._jid_nick[stanza.attr.from] | |
456 | and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" and #stanza.tags[1].tags == 1 | |
457 | and stanza.tags[1].tags[1].name == "invite" and stanza.tags[1].tags[1].attr.to then | |
458 | local _from, _to = stanza.attr.from, stanza.attr.to; | |
459 | local _invitee = stanza.tags[1].tags[1].attr.to; | |
460 | stanza.attr.from, stanza.attr.to = _to, _invitee; | |
461 | stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = _from, nil; | |
462 | self:route_stanza(stanza); | |
463 | stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = nil, _invitee; | |
464 | stanza.attr.from, stanza.attr.to = _from, _to; | |
465 | else | |
466 | if type == "error" or type == "result" then return; end | |
467 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); | |
468 | end | |
469 | end | |
470 | ||
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471 | function room_mt:handle_stanza(origin, stanza) |
1734 | 472 | local to_node, to_host, to_resource = jid_split(stanza.attr.to); |
473 | if to_resource then | |
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474 | self:handle_to_occupant(origin, stanza); |
1734 | 475 | else |
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476 | self:handle_to_room(origin, stanza); |
1734 | 477 | end |
478 | end | |
479 | ||
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480 | function room_mt:route_stanza(stanza) end -- Replace with a routing function, e.g., function(room, stanza) core_route_stanza(origin, stanza); end |
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481 | |
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482 | function room_mt:get_affiliation(jid) |
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483 | local node, host, resource = jid_split(jid); |
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484 | local bare = node and node.."@"..host or host; |
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485 | local result = self._affiliations[bare]; -- Affiliations are granted, revoked, and maintained based on the user's bare JID. |
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486 | if not result and self._affiliations[host] == "outcast" then result = "outcast"; end -- host banned |
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487 | return result; |
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488 | end |
1742
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489 | function room_mt:set_affiliation(actor, jid, affiliation, callback) |
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490 | jid = jid_bare(jid); |
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491 | if affiliation == "none" then affiliation = nil; end |
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492 | if affiliation and affiliation ~= "outcast" and affiliation ~= "owner" and affiliation ~= "admin" and affiliation ~= "member" then |
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493 | return nil, "modify", "not-acceptable"; |
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494 | end |
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495 | if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end |
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496 | if jid_bare(actor) == jid then return nil, "cancel", "not-allowed"; end |
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497 | self._affiliations[jid] = affiliation; |
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498 | local role = self:get_default_role(affiliation); |
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499 | local p = st.presence() |
1742
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500 | :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) |
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501 | :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up(); |
1742
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502 | local x = p.tags[1]; |
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503 | local item = x.tags[1]; |
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504 | if not role then -- getting kicked |
1750
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505 | p.attr.type = "unavailable"; |
1742
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506 | if affiliation == "outcast" then |
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507 | x:tag("status", {code="301"}):up(); -- banned |
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508 | else |
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509 | x:tag("status", {code="321"}):up(); -- affiliation change |
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510 | end |
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511 | end |
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512 | local modified_nicks = {}; |
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513 | for nick, occupant in pairs(self._occupants) do |
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514 | if jid_bare(occupant.jid) == jid then |
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515 | if not role then -- getting kicked |
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516 | self._occupants[nick] = nil; |
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517 | else |
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518 | t_insert(modified_nicks, nick); |
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519 | occupant.affiliation, occupant.role = affiliation, role; |
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520 | end |
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521 | p.attr.from = nick; |
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522 | for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick |
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523 | if not role then self._jid_nick[jid] = nil; end |
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524 | p.attr.to = jid; |
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525 | self:route_stanza(p); |
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526 | end |
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527 | end |
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528 | end |
1755
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529 | if self.save then self:save(); end |
1742
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530 | if callback then callback(); end |
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531 | for _, nick in ipairs(modified_nicks) do |
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532 | p.attr.from = nick; |
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533 | self:broadcast_except_nick(p, nick); |
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534 | end |
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535 | return true; |
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536 | end |
1734 | 537 | |
1742
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538 | function room_mt:get_role(nick) |
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539 | local session = self._occupants[nick]; |
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540 | return session and session.role or nil; |
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541 | end |
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542 | function room_mt:set_role(actor, nick, role, callback) |
1752
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543 | if role == "none" then role = nil; end |
1742
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544 | if role and role ~= "moderator" and role ~= "participant" and role ~= "visitor" then return nil, "modify", "not-acceptable"; end |
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545 | if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end |
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546 | local occupant = self._occupants[nick]; |
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547 | if not occupant then return nil, "modify", "not-acceptable"; end |
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548 | if occupant.affiliation == "owner" or occupant.affiliation == "admin" then return nil, "cancel", "not-allowed"; end |
1750
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549 | local p = st.presence({from = nick}) |
1742
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550 | :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) |
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551 | :tag("item", {affiliation=occupant.affiliation or "none", nick=nick, role=role or "none"}):up(); |
1742
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552 | if not role then -- kick |
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553 | p.attr.type = "unavailable"; |
1742
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554 | self._occupants[nick] = nil; |
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555 | for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick |
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556 | self._jid_nick[jid] = nil; |
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557 | end |
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558 | p:tag("status", {code = "307"}):up(); |
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559 | else |
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560 | occupant.role = role; |
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561 | end |
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562 | for jid in pairs(occupant.sessions) do -- send to all sessions of the nick |
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563 | p.attr.to = jid; |
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564 | self:route_stanza(p); |
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565 | end |
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566 | if callback then callback(); end |
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567 | self:broadcast_except_nick(p, nick); |
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568 | return true; |
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569 | end |
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570 | |
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571 | local _M = {}; -- module "muc" |
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572 | |
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573 | function _M.new_room(jid) |
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574 | return setmetatable({ |
1734 | 575 | jid = jid; |
576 | _jid_nick = {}; | |
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577 | _occupants = {}; |
1734 | 578 | _data = {}; |
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579 | _affiliations = {}; |
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580 | }, room_mt); |
1734 | 581 | end |
582 | ||
583 | return _M; | |
584 | ||
585 | --[[function get_disco_info(stanza) | |
586 | return st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") | |
587 | :tag("identity", {category='conference', type='text', name=muc_name}):up() | |
588 | :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply | |
589 | end | |
590 | function get_disco_items(stanza) | |
591 | local reply = st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); | |
592 | for room in pairs(rooms_info:get()) do | |
593 | reply:tag("item", {jid=room, name=rooms_info:get(room, "name")}):up(); | |
594 | end | |
595 | return reply; -- TODO cache disco reply | |
596 | end]] | |
597 | ||
598 | --[[function handle_to_domain(origin, stanza) | |
599 | local type = stanza.attr.type; | |
600 | if type == "error" or type == "result" then return; end | |
601 | if stanza.name == "iq" and type == "get" then | |
602 | local xmlns = stanza.tags[1].attr.xmlns; | |
603 | if xmlns == "http://jabber.org/protocol/disco#info" then | |
604 | origin.send(get_disco_info(stanza)); | |
605 | elseif xmlns == "http://jabber.org/protocol/disco#items" then | |
606 | origin.send(get_disco_items(stanza)); | |
607 | else | |
608 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc | |
609 | end | |
610 | else | |
611 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it")); | |
612 | end | |
613 | end | |
614 | ||
615 | register_component(muc_domain, function(origin, stanza) | |
616 | local to_node, to_host, to_resource = jid_split(stanza.attr.to); | |
617 | if to_resource and not to_node then | |
618 | if type == "error" or type == "result" then return; end | |
619 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- host/resource | |
620 | elseif to_resource then | |
621 | handle_to_occupant(origin, stanza); | |
622 | elseif to_node then | |
623 | handle_to_room(origin, stanza) | |
624 | else -- to the main muc domain | |
625 | if type == "error" or type == "result" then return; end | |
626 | handle_to_domain(origin, stanza); | |
627 | end | |
628 | end);]] | |
629 | ||
630 | --[[module.unload = function() | |
631 | deregister_component(muc_domain); | |
632 | end | |
633 | module.save = function() | |
634 | return {rooms = rooms.data; jid_nick = jid_nick.data; rooms_info = rooms_info.data; persist_list = persist_list}; | |
635 | end | |
636 | module.restore = function(data) | |
637 | rooms.data, jid_nick.data, rooms_info.data, persist_list = | |
638 | data.rooms or {}, data.jid_nick or {}, data.rooms_info or {}, data.persist_list or {}; | |
639 | end]] |