Fri, 25 Sep 2009 12:35:09 +0500
MUC: Refactored to remove some duplicate code.
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; |
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19 | local base64 = require "util.encodings".base64; |
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20 | local md5 = require "util.hashes".md5; |
1734 | 21 | |
22 | local muc_domain = nil; --module:get_host(); | |
23 | local history_length = 20; | |
24 | ||
25 | ------------ | |
26 | local function filter_xmlns_from_array(array, filters) | |
27 | local count = 0; | |
28 | for i=#array,1,-1 do | |
29 | local attr = array[i].attr; | |
30 | if filters[attr and attr.xmlns] then | |
31 | t_remove(array, i); | |
32 | count = count + 1; | |
33 | end | |
34 | end | |
35 | return count; | |
36 | end | |
37 | local function filter_xmlns_from_stanza(stanza, filters) | |
38 | if filters then | |
39 | if filter_xmlns_from_array(stanza.tags, filters) ~= 0 then | |
40 | return stanza, filter_xmlns_from_array(stanza, filters); | |
41 | end | |
42 | end | |
43 | return stanza, 0; | |
44 | end | |
45 | local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true}; | |
46 | local function get_filtered_presence(stanza) | |
47 | return filter_xmlns_from_stanza(st.clone(stanza), presence_filters); | |
48 | end | |
49 | local kickable_error_conditions = { | |
50 | ["gone"] = true; | |
51 | ["internal-server-error"] = true; | |
52 | ["item-not-found"] = true; | |
53 | ["jid-malformed"] = true; | |
54 | ["recipient-unavailable"] = true; | |
55 | ["redirect"] = true; | |
56 | ["remote-server-not-found"] = true; | |
57 | ["remote-server-timeout"] = true; | |
58 | ["service-unavailable"] = true; | |
59 | }; | |
60 | local function get_kickable_error(stanza) | |
61 | for _, tag in ipairs(stanza.tags) do | |
62 | if tag.name == "error" and tag.attr.xmlns == "jabber:client" then | |
63 | for _, cond in ipairs(tag.tags) do | |
64 | if cond.attr.xmlns == "urn:ietf:params:xml:ns:xmpp-stanzas" then | |
65 | return kickable_error_conditions[cond.name] and cond.name; | |
66 | end | |
67 | end | |
68 | return true; -- malformed error message | |
69 | end | |
70 | end | |
71 | return true; -- malformed error message | |
72 | end | |
73 | local function getUsingPath(stanza, path, getText) | |
74 | local tag = stanza; | |
75 | for _, name in ipairs(path) do | |
76 | if type(tag) ~= 'table' then return; end | |
77 | tag = tag:child_with_name(name); | |
78 | end | |
79 | if tag and getText then tag = table.concat(tag); end | |
80 | return tag; | |
81 | end | |
82 | local function getTag(stanza, path) return getUsingPath(stanza, path); end | |
83 | local function getText(stanza, path) return getUsingPath(stanza, path, true); end | |
84 | ----------- | |
85 | ||
86 | --[[function get_room_disco_info(room, stanza) | |
87 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") | |
88 | :tag("identity", {category='conference', type='text', name=room._data["name"]):up() | |
89 | :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply | |
90 | end | |
91 | function get_room_disco_items(room, stanza) | |
92 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); | |
93 | end -- TODO allow non-private rooms]] | |
94 | ||
95 | -- | |
96 | ||
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97 | local room_mt = {}; |
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98 | room_mt.__index = room_mt; |
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99 | |
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100 | function room_mt:get_default_role(affiliation) |
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101 | if affiliation == "owner" or affiliation == "admin" then |
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102 | return "moderator"; |
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103 | elseif affiliation == "member" or not affiliation then |
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104 | return "participant"; |
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105 | end |
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106 | end |
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107 | |
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108 | function room_mt:broadcast_presence(stanza, code, nick) |
1734 | 109 | stanza = get_filtered_presence(stanza); |
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110 | local data = self._occupants[stanza.attr.from]; |
1734 | 111 | stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) |
112 | :tag("item", {affiliation=data.affiliation, role=data.role, nick=nick}):up(); | |
113 | if code then | |
114 | stanza:tag("status", {code=code}):up(); | |
115 | end | |
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116 | self:broadcast_except_nick(stanza, stanza.attr.from); |
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117 | local me = self._occupants[stanza.attr.from]; |
1734 | 118 | if me then |
119 | stanza:tag("status", {code='110'}); | |
120 | for jid in pairs(me.sessions) do | |
121 | stanza.attr.to = jid; | |
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122 | self:route_stanza(stanza); |
1734 | 123 | end |
124 | end | |
125 | end | |
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126 | function room_mt:broadcast_message(stanza, historic) |
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127 | for occupant, o_data in pairs(self._occupants) do |
1734 | 128 | for jid in pairs(o_data.sessions) do |
129 | stanza.attr.to = jid; | |
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130 | self:route_stanza(stanza); |
1734 | 131 | end |
132 | end | |
133 | if historic then -- add to history | |
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134 | local history = self._data['history']; |
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135 | if not history then history = {}; self._data['history'] = history; end |
1734 | 136 | -- stanza = st.clone(stanza); |
137 | stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = datetime.datetime()}):up(); -- XEP-0203 | |
138 | stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) | |
139 | t_insert(history, st.clone(st.preserialize(stanza))); | |
140 | while #history > history_length do t_remove(history, 1) end | |
141 | end | |
142 | end | |
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143 | function room_mt:broadcast_except_nick(stanza, nick) |
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144 | for rnick, occupant in pairs(self._occupants) do |
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145 | if rnick ~= nick then |
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146 | for jid in pairs(occupant.sessions) do |
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147 | stanza.attr.to = jid; |
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148 | self:route_stanza(stanza); |
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149 | end |
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150 | end |
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151 | end |
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152 | end |
1734 | 153 | |
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154 | function room_mt:send_occupant_list(to) |
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155 | local current_nick = self._jid_nick[to]; |
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156 | for occupant, o_data in pairs(self._occupants) do |
1734 | 157 | if occupant ~= current_nick then |
158 | local pres = get_filtered_presence(o_data.sessions[o_data.jid]); | |
159 | pres.attr.to, pres.attr.from = to, occupant; | |
160 | pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) | |
161 | :tag("item", {affiliation=o_data.affiliation, role=o_data.role}):up(); | |
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162 | self:route_stanza(pres); |
1734 | 163 | end |
164 | end | |
165 | end | |
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166 | function room_mt:send_history(to) |
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167 | local history = self._data['history']; -- send discussion history |
1734 | 168 | if history then |
169 | for _, msg in ipairs(history) do | |
170 | msg = st.deserialize(msg); | |
171 | msg.attr.to=to; | |
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172 | self:route_stanza(msg); |
1734 | 173 | end |
174 | end | |
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175 | if self._data['subject'] then |
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176 | self:route_stanza(st.message({type='groupchat', from=self.jid, to=to}):tag("subject"):text(self._data['subject'])); |
1734 | 177 | end |
178 | end | |
179 | ||
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180 | local function room_get_disco_info(self, stanza) |
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181 | return st.reply(stanza):query("http://jabber.org/protocol/disco#info") |
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182 | :tag("identity", {category="conference", type="text"}):up() |
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183 | :tag("feature", {var="http://jabber.org/protocol/muc"}); |
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184 | end |
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185 | local function room_get_disco_items(self, stanza) |
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186 | return st.reply(stanza):query("http://jabber.org/protocol/disco#items"); |
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187 | end |
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188 | function room_mt:set_subject(current_nick, subject) |
1734 | 189 | -- TODO check nick's authority |
190 | if subject == "" then subject = nil; end | |
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191 | self._data['subject'] = subject; |
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192 | if self.save then self:save(); end |
1734 | 193 | local msg = st.message({type='groupchat', from=current_nick}) |
194 | :tag('subject'):text(subject):up(); | |
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195 | self:broadcast_message(msg, false); |
1734 | 196 | return true; |
197 | end | |
198 | ||
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199 | function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc |
1734 | 200 | local from, to = stanza.attr.from, stanza.attr.to; |
201 | local room = jid_bare(to); | |
202 | local current_nick = self._jid_nick[from]; | |
203 | local type = stanza.attr.type; | |
204 | log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag()); | |
205 | if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end | |
206 | if stanza.name == "presence" then | |
207 | local pr = get_filtered_presence(stanza); | |
208 | pr.attr.from = current_nick; | |
209 | if type == "error" then -- error, kick em out! | |
210 | if current_nick then | |
211 | log("debug", "kicking %s from %s", current_nick, room); | |
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212 | self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) |
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213 | :tag('status'):text('This participant is kicked from the room because he sent an error presence')); -- send unavailable |
1734 | 214 | end |
215 | elseif type == "unavailable" then -- unavailable | |
216 | if current_nick then | |
217 | log("debug", "%s leaving %s", current_nick, room); | |
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218 | local data = self._occupants[current_nick]; |
1734 | 219 | data.role = 'none'; |
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220 | self:broadcast_presence(pr); |
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221 | self._occupants[current_nick] = nil; |
1734 | 222 | self._jid_nick[from] = nil; |
223 | end | |
224 | elseif not type then -- available | |
225 | if current_nick then | |
226 | --if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence | |
227 | if current_nick == to then -- simple presence | |
228 | log("debug", "%s broadcasted presence", current_nick); | |
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229 | self._occupants[current_nick].sessions[from] = pr; |
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230 | self:broadcast_presence(pr); |
1734 | 231 | else -- change nick |
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232 | if self._occupants[to] then |
1734 | 233 | log("debug", "%s couldn't change nick", current_nick); |
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234 | local reply = st.error_reply(stanza, "cancel", "conflict"):up(); |
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235 | reply.tags[1].attr.code = "409"; |
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236 | origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); |
1734 | 237 | else |
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238 | local data = self._occupants[current_nick]; |
1734 | 239 | local to_nick = select(3, jid_split(to)); |
240 | if to_nick then | |
241 | log("debug", "%s (%s) changing nick to %s", current_nick, data.jid, to); | |
242 | local p = st.presence({type='unavailable', from=current_nick}); | |
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243 | self:broadcast_presence(p, '303', to_nick); |
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244 | self._occupants[current_nick] = nil; |
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245 | self._occupants[to] = data; |
1734 | 246 | self._jid_nick[from] = to; |
247 | pr.attr.from = to; | |
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248 | self._occupants[to].sessions[from] = pr; |
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249 | self:broadcast_presence(pr); |
1734 | 250 | else |
251 | --TODO malformed-jid | |
252 | end | |
253 | end | |
254 | end | |
255 | --else -- possible rejoin | |
256 | -- log("debug", "%s had connection replaced", current_nick); | |
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257 | -- self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) |
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258 | -- :tag('status'):text('Replaced by new connection'):up()); -- send unavailable |
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259 | -- self:handle_to_occupant(origin, stanza); -- resend available |
1734 | 260 | --end |
261 | else -- enter room | |
262 | local new_nick = to; | |
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263 | if self._occupants[to] then |
1734 | 264 | new_nick = nil; |
265 | end | |
266 | if not new_nick then | |
267 | log("debug", "%s couldn't join due to nick conflict: %s", from, to); | |
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268 | local reply = st.error_reply(stanza, "cancel", "conflict"):up(); |
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269 | reply.tags[1].attr.code = "409"; |
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270 | origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); |
1734 | 271 | else |
272 | log("debug", "%s joining as %s", from, to); | |
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273 | if not next(self._affiliations) then -- new room, no owners |
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274 | self._affiliations[jid_bare(from)] = "owner"; |
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275 | end |
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276 | local affiliation = self:get_affiliation(from); |
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277 | local role = self:get_default_role(affiliation) |
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278 | if role then -- new occupant |
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279 | self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}}; |
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280 | self._jid_nick[from] = to; |
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281 | self:send_occupant_list(from); |
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282 | pr.attr.from = to; |
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283 | self:broadcast_presence(pr); |
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284 | self:send_history(from); |
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285 | else -- banned |
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286 | local reply = st.error_reply(stanza, "auth", "forbidden"):up(); |
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287 | reply.tags[1].attr.code = "403"; |
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288 | origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); |
1734 | 289 | end |
290 | end | |
291 | end | |
292 | elseif type ~= 'result' then -- bad type | |
293 | origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? | |
294 | end | |
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295 | elseif not current_nick then -- not in room |
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296 | if type == "error" or type == "result" then |
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297 | local id = stanza.name == "iq" and stanza.attr.id and base64.decode(stanza.attr.id); |
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298 | local _nick, _id, _hash = (id or ""):match("^(.+)%z(.*)%z(.+)$"); |
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299 | local occupant = self._occupants[stanza.attr.to]; |
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300 | if occupant and _nick and self._jid_nick[_nick] and _id and _hash then |
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301 | local id, _to = stanza.attr.id; |
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302 | for jid in pairs(occupant.sessions) do |
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303 | if md5(jid) == _hash then |
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304 | _to = jid; |
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305 | break; |
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306 | end |
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307 | end |
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308 | if _to then |
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309 | stanza.attr.to, stanza.attr.from, stanza.attr.id = _to, self._jid_nick[_nick], _id; |
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310 | self:route_stanza(stanza); |
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311 | stanza.attr.to, stanza.attr.from, stanza.attr.id = to, from, id; |
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312 | end |
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313 | end |
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314 | else |
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315 | origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); |
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316 | end |
1734 | 317 | elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM |
318 | origin.send(st.error_reply(stanza, "modify", "bad-request")); | |
319 | else -- private stanza | |
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320 | local o_data = self._occupants[to]; |
1734 | 321 | if o_data then |
322 | log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid); | |
323 | local jid = o_data.jid; | |
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324 | local bare = jid_bare(jid); |
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325 | stanza.attr.to, stanza.attr.from = jid, current_nick; |
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326 | local id = stanza.attr.id; |
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327 | if stanza.name=='iq' and type=='get' and stanza.tags[1].attr.xmlns == 'vcard-temp' and bare ~= jid then |
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328 | stanza.attr.to = bare; |
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329 | stanza.attr.id = base64.encode(jid.."\0"..id.."\0"..md5(from)); |
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330 | end |
1734 | 331 | self:route_stanza(stanza); |
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332 | stanza.attr.to, stanza.attr.from, stanza.attr.id = to, from, id; |
1734 | 333 | elseif type ~= "error" and type ~= "result" then -- recipient not in room |
334 | origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); | |
335 | end | |
336 | end | |
337 | end | |
338 | ||
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339 | function room_mt:handle_form(origin, stanza) |
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340 | if self:get_affiliation(stanza.attr.from) ~= "owner" then origin.send(st.error_reply(stanza, "auth", "forbidden")); return; end |
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341 | if stanza.attr.type == "get" then |
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342 | local title = "Configuration for "..self.jid; |
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343 | origin.send(st.reply(stanza):query("http://jabber.org/protocol/muc#owner") |
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344 | :tag("x", {xmlns='jabber:x:data', type='form'}) |
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345 | :tag("title"):text(title):up() |
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346 | :tag("instructions"):text(title):up() |
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347 | :tag("field", {type='hidden', var='FORM_TYPE'}):tag("value"):text("http://jabber.org/protocol/muc#roomconfig"):up():up() |
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348 | :tag("field", {type='boolean', label='Make Room Persistent?', var='muc#roomconfig_persistentroom'}) |
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349 | :tag("value"):text(self._data.persistent and "1" or "0"):up() |
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350 | :up() |
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351 | :tag("field", {type='boolean', label='Make Room Publicly Searchable?', var='muc#roomconfig_publicroom'}) |
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352 | :tag("value"):text(self._data.hidden and "0" or "1"):up() |
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353 | :up() |
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354 | ); |
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355 | elseif stanza.attr.type == "set" then |
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356 | local query = stanza.tags[1]; |
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357 | local form; |
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358 | 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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359 | if not form then origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return; end |
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360 | if form.attr.type == "cancel" then origin.send(st.reply(stanza)); return; end |
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361 | if form.attr.type ~= "submit" then origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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362 | local fields = {}; |
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363 | for _, field in pairs(form.tags) do |
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364 | 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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365 | fields[field.attr.var] = field.tags[1][1] or ""; |
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366 | end |
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367 | end |
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368 | 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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369 | |
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370 | local persistent = fields['muc#roomconfig_persistentroom']; |
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371 | if persistent == "0" or persistent == "false" then persistent = nil; elseif persistent == "1" or persistent == "true" then persistent = true; |
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372 | else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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373 | self._data.persistent = persistent; |
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374 | module:log("debug", "persistent=%s", tostring(persistent)); |
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375 | |
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376 | local public = fields['muc#roomconfig_publicroom']; |
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377 | if public == "0" or public == "false" then public = nil; elseif public == "1" or public == "true" then public = true; |
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378 | else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end |
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379 | self._data.hidden = not public and true or nil; |
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380 | |
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381 | if self.save then self:save(true); end |
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382 | origin.send(st.reply(stanza)); |
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383 | end |
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384 | end |
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385 | |
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386 | function room_mt:handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc |
1734 | 387 | local type = stanza.attr.type; |
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388 | local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns; |
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389 | if stanza.name == "iq" then |
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390 | if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" then |
1734 | 391 | origin.send(room_get_disco_info(self, stanza)); |
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392 | elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" then |
1734 | 393 | origin.send(room_get_disco_items(self, stanza)); |
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394 | elseif xmlns == "http://jabber.org/protocol/muc#admin" then |
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395 | local actor = stanza.attr.from; |
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396 | local affiliation = self:get_affiliation(actor); |
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397 | local current_nick = self._jid_nick[actor]; |
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398 | local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation); |
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399 | local item = stanza.tags[1].tags[1]; |
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400 | if item and item.name == "item" then |
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401 | if type == "set" then |
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402 | local callback = function() origin.send(st.reply(stanza)); end |
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403 | 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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404 | local occupant = self._occupants[self.jid.."/"..item.attr.nick]; |
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405 | if occupant then item.attr.jid = occupant.jid; end |
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406 | end |
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407 | if item.attr.affiliation and item.attr.jid and not item.attr.role then |
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408 | local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback); |
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409 | if not success then origin.send(st.error_reply(stanza, errtype, err)); end |
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410 | elseif item.attr.role and item.attr.nick and not item.attr.affiliation then |
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411 | local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback); |
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412 | if not success then origin.send(st.error_reply(stanza, errtype, err)); end |
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413 | else |
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414 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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415 | end |
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416 | elseif type == "get" then |
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417 | local _aff = item.attr.affiliation; |
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418 | local _rol = item.attr.role; |
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419 | if _aff and not _rol then |
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420 | if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then |
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421 | local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); |
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422 | for jid, affiliation in pairs(self._affiliations) do |
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423 | if affiliation == _aff then |
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424 | reply:tag("item", {affiliation = _aff, jid = jid}):up(); |
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425 | end |
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426 | end |
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427 | origin.send(reply); |
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428 | else |
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429 | origin.send(st.error_reply(stanza, "auth", "forbidden")); |
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430 | end |
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431 | elseif _rol and not _aff then |
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432 | if role == "moderator" then |
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433 | -- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway? |
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434 | if _rol == "none" then _rol = nil; end |
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435 | local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); |
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436 | for nick, occupant in pairs(self._occupants) do |
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437 | if occupant.role == _rol then |
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438 | reply:tag("item", {nick = nick, role = _rol or "none", affiliation = occupant.affiliation or "none", jid = occupant.jid}):up(); |
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439 | end |
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440 | end |
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441 | origin.send(reply); |
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442 | else |
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443 | origin.send(st.error_reply(stanza, "auth", "forbidden")); |
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444 | end |
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445 | else |
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446 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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447 | end |
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448 | end |
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449 | elseif type == "set" or type == "get" then |
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450 | origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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451 | end |
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452 | 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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453 | self:handle_form(origin, stanza); |
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454 | elseif type == "set" or type == "get" then |
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455 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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456 | end |
1734 | 457 | elseif stanza.name == "message" and type == "groupchat" then |
458 | local from, to = stanza.attr.from, stanza.attr.to; | |
459 | local room = jid_bare(to); | |
460 | local current_nick = self._jid_nick[from]; | |
461 | if not current_nick then -- not in room | |
462 | origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); | |
463 | else | |
464 | local from = stanza.attr.from; | |
465 | stanza.attr.from = current_nick; | |
466 | local subject = getText(stanza, {"subject"}); | |
467 | if subject then | |
468 | self:set_subject(current_nick, subject); -- TODO use broadcast_message_stanza | |
469 | else | |
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470 | self:broadcast_message(stanza, true); |
1734 | 471 | end |
472 | end | |
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473 | elseif stanza.name == "message" and type == "error" and get_kickable_error(stanza) then |
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474 | local current_nick = self._jid_nick[stanza.attr.from]; |
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475 | log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); |
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476 | self:handle_to_occupant(origin, st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to}) |
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477 | :tag('status'):text('This participant is kicked from the room because he sent an error message to another occupant')); -- send unavailable |
1734 | 478 | elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick |
479 | local to = stanza.attr.to; | |
480 | local current_nick = self._jid_nick[stanza.attr.from]; | |
481 | if current_nick then | |
482 | stanza.attr.to = current_nick; | |
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483 | self:handle_to_occupant(origin, stanza); |
1734 | 484 | stanza.attr.to = to; |
485 | elseif type ~= "error" and type ~= "result" then | |
486 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); | |
487 | end | |
488 | elseif stanza.name == "message" and not stanza.attr.type and #stanza.tags == 1 and self._jid_nick[stanza.attr.from] | |
489 | and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" and #stanza.tags[1].tags == 1 | |
490 | and stanza.tags[1].tags[1].name == "invite" and stanza.tags[1].tags[1].attr.to then | |
491 | local _from, _to = stanza.attr.from, stanza.attr.to; | |
492 | local _invitee = stanza.tags[1].tags[1].attr.to; | |
493 | stanza.attr.from, stanza.attr.to = _to, _invitee; | |
494 | stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = _from, nil; | |
495 | self:route_stanza(stanza); | |
496 | stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = nil, _invitee; | |
497 | stanza.attr.from, stanza.attr.to = _from, _to; | |
498 | else | |
499 | if type == "error" or type == "result" then return; end | |
500 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); | |
501 | end | |
502 | end | |
503 | ||
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|
504 | function room_mt:handle_stanza(origin, stanza) |
1734 | 505 | local to_node, to_host, to_resource = jid_split(stanza.attr.to); |
506 | if to_resource then | |
1735
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507 | self:handle_to_occupant(origin, stanza); |
1734 | 508 | else |
1735
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509 | self:handle_to_room(origin, stanza); |
1734 | 510 | end |
511 | end | |
512 | ||
1735
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513 | 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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514 | |
1737
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515 | function room_mt:get_affiliation(jid) |
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516 | local node, host, resource = jid_split(jid); |
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517 | local bare = node and node.."@"..host or host; |
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518 | local result = self._affiliations[bare]; -- Affiliations are granted, revoked, and maintained based on the user's bare JID. |
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519 | if not result and self._affiliations[host] == "outcast" then result = "outcast"; end -- host banned |
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520 | return result; |
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521 | end |
1742
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522 | function room_mt:set_affiliation(actor, jid, affiliation, callback) |
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523 | jid = jid_bare(jid); |
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524 | if affiliation == "none" then affiliation = nil; end |
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525 | if affiliation and affiliation ~= "outcast" and affiliation ~= "owner" and affiliation ~= "admin" and affiliation ~= "member" then |
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526 | return nil, "modify", "not-acceptable"; |
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527 | end |
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528 | if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end |
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529 | if jid_bare(actor) == jid then return nil, "cancel", "not-allowed"; end |
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530 | self._affiliations[jid] = affiliation; |
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531 | local role = self:get_default_role(affiliation); |
1750
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|
532 | local p = st.presence() |
1742
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533 | :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) |
1744
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534 | :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up(); |
1742
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535 | local x = p.tags[1]; |
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536 | local item = x.tags[1]; |
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|
537 | if not role then -- getting kicked |
1750
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538 | p.attr.type = "unavailable"; |
1742
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539 | if affiliation == "outcast" then |
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540 | x:tag("status", {code="301"}):up(); -- banned |
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541 | else |
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542 | x:tag("status", {code="321"}):up(); -- affiliation change |
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543 | end |
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544 | end |
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|
545 | local modified_nicks = {}; |
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546 | for nick, occupant in pairs(self._occupants) do |
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547 | if jid_bare(occupant.jid) == jid then |
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548 | if not role then -- getting kicked |
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549 | self._occupants[nick] = nil; |
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550 | else |
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551 | t_insert(modified_nicks, nick); |
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552 | occupant.affiliation, occupant.role = affiliation, role; |
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553 | end |
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|
554 | p.attr.from = nick; |
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555 | for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick |
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|
556 | if not role then self._jid_nick[jid] = nil; end |
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|
557 | p.attr.to = jid; |
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558 | self:route_stanza(p); |
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559 | end |
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|
560 | end |
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|
561 | end |
1755
1614e8e62ad5
MUC: Fixed an undefined global access.
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1754
diff
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|
562 | if self.save then self:save(); end |
1742
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563 | if callback then callback(); end |
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564 | for _, nick in ipairs(modified_nicks) do |
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|
565 | p.attr.from = nick; |
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|
566 | self:broadcast_except_nick(p, nick); |
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|
567 | end |
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|
568 | return true; |
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|
569 | end |
1734 | 570 | |
1742
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|
571 | function room_mt:get_role(nick) |
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|
572 | local session = self._occupants[nick]; |
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|
573 | return session and session.role or nil; |
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|
574 | end |
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diff
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|
575 | function room_mt:set_role(actor, nick, role, callback) |
1752
4db786919805
MUC: Added kicking support.
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1751
diff
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|
576 | if role == "none" then role = nil; end |
1742
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diff
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|
577 | if role and role ~= "moderator" and role ~= "participant" and role ~= "visitor" then return nil, "modify", "not-acceptable"; end |
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|
578 | if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end |
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|
579 | local occupant = self._occupants[nick]; |
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diff
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|
580 | if not occupant then return nil, "modify", "not-acceptable"; end |
1743
d00b144f4bcf
MUC: An admin or owner MUST NOT be able to revoke moderation privileges from another admin or owner.
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diff
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|
581 | if occupant.affiliation == "owner" or occupant.affiliation == "admin" then return nil, "cancel", "not-allowed"; end |
1750
a1c18470eeee
MUC: Fixed: Unavailable presence was being sent for all role and affiliation changes. Now sent only for kicked occupants.
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diff
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|
582 | local p = st.presence({from = nick}) |
1742
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|
583 | :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) |
1744
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|
584 | :tag("item", {affiliation=occupant.affiliation or "none", nick=nick, role=role or "none"}):up(); |
1742
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diff
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|
585 | if not role then -- kick |
1750
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|
586 | p.attr.type = "unavailable"; |
1742
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|
587 | self._occupants[nick] = nil; |
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|
588 | for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick |
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|
589 | self._jid_nick[jid] = nil; |
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|
590 | end |
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|
591 | p:tag("status", {code = "307"}):up(); |
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592 | else |
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|
593 | occupant.role = role; |
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|
594 | end |
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|
595 | for jid in pairs(occupant.sessions) do -- send to all sessions of the nick |
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596 | p.attr.to = jid; |
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597 | self:route_stanza(p); |
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598 | end |
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|
599 | if callback then callback(); end |
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|
600 | self:broadcast_except_nick(p, nick); |
1737
31c3eb5797c7
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|
601 | return true; |
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|
602 | end |
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|
603 | |
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|
604 | local _M = {}; -- module "muc" |
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MUC: Initial support for roles and affiliations
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|
605 | |
1749
cf2ade983e12
MUC: Changed a MUC library method into a function.
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|
606 | function _M.new_room(jid) |
1735
81406277279e
MUC: The MUC lib is now metatable based. Cleaned up code, etc.
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|
607 | return setmetatable({ |
1734 | 608 | jid = jid; |
609 | _jid_nick = {}; | |
1739
393abf245322
MUC: Renamed _participants table to _occupants
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|
610 | _occupants = {}; |
1734 | 611 | _data = {}; |
1737
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MUC: Initial support for roles and affiliations
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|
612 | _affiliations = {}; |
1735
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|
613 | }, room_mt); |
1734 | 614 | end |
615 | ||
616 | return _M; |