5 local hosts = hosts; |
5 local hosts = hosts; |
6 local user_exists = require "core.usermanager".user_exists; |
6 local user_exists = require "core.usermanager".user_exists; |
7 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; |
7 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; |
8 local pairs, ipairs = pairs, ipairs; |
8 local pairs, ipairs = pairs, ipairs; |
9 local next = next; |
9 local next = next; |
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10 local type = type; |
10 local load_roster = require "core.rostermanager".load_roster; |
11 local load_roster = require "core.rostermanager".load_roster; |
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12 local sha1 = require "util.hashes".sha1; |
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13 local base64 = require "util.encodings".base64.encode; |
11 |
14 |
12 local NULL = {}; |
15 local NULL = {}; |
13 local data = {}; |
16 local data = {}; |
14 local recipients = {}; |
17 local recipients = {}; |
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18 local hash_map = {}; |
15 |
19 |
16 module:add_identity("pubsub", "pep"); |
20 module:add_identity("pubsub", "pep"); |
17 module:add_feature("http://jabber.org/protocol/pubsub#publish"); |
21 module:add_feature("http://jabber.org/protocol/pubsub#publish"); |
18 |
22 |
19 local function publish(session, node, item) |
23 local function publish(session, node, item) |
35 if not user_data then user_data = {}; data[bare] = user_data; end |
39 if not user_data then user_data = {}; data[bare] = user_data; end |
36 user_data[node] = stanza; |
40 user_data[node] = stanza; |
37 end |
41 end |
38 |
42 |
39 -- broadcast |
43 -- broadcast |
40 for recipient in pairs(recipients[user] or NULL) do |
44 for recipient, notify in pairs(recipients[bare] or NULL) do |
41 stanza.attr.to = recipient; |
45 if notify[node] then |
42 core_post_stanza(session, stanza); |
46 stanza.attr.to = recipient; |
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47 core_post_stanza(session, stanza); |
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48 end |
43 end |
49 end |
44 end |
50 end |
45 |
51 |
46 local function get_caps_hash_from_presence(stanza, current) |
52 local function get_caps_hash_from_presence(stanza, current) |
47 local t = stanza.attr.type; |
53 local t = stanza.attr.type; |
78 if not hash then |
84 if not hash then |
79 if recipients[user] then recipients[user][recipient] = nil; end |
85 if recipients[user] then recipients[user][recipient] = nil; end |
80 else |
86 else |
81 recipients[user] = recipients[user] or {}; |
87 recipients[user] = recipients[user] or {}; |
82 recipients[user][recipient] = hash; |
88 recipients[user][recipient] = hash; |
83 for node, message in pairs(data[user] or NULL) do |
89 origin.send( |
84 message.attr.to = stanza.attr.from; |
90 st.stanza("iq", {from=stanza.attr.to, to=stanza.attr.from, id="disco", type="get"}) |
85 origin.send(message); |
91 :query("http://jabber.org/protocol/disco#info") |
86 end |
92 ); |
87 end |
93 end |
88 end |
94 end |
89 end, 10); |
95 end, 10); |
90 |
96 |
91 module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event) |
97 module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event) |
104 end |
110 end |
105 end |
111 end |
106 end |
112 end |
107 end); |
113 end); |
108 |
114 |
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115 local function calculate_hash(disco_info) |
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116 local identities, features, extensions = {}, {}, {}; |
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117 for _, tag in pairs(disco_info) do |
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118 if tag.name == "identity" then |
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119 table.insert(identities, (tag.attr.category or "").."\0"..(tag.attr.type or "").."\0"..(tag.attr["xml:lang"] or "").."\0"..(tag.attr.name or "")); |
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120 elseif tag.name == "feature" then |
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121 table.insert(features, tag.attr.var or ""); |
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122 elseif tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then |
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123 local form = {}; |
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124 local FORM_TYPE; |
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125 for _, field in pairs(tag.tags) do |
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126 if field.name == "field" and field.attr.var then |
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127 local values = {}; |
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128 for _, val in pairs(field.tags) do |
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129 val = #val.tags == 0 and table.concat(val); -- FIXME use get_text? |
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130 if val then table.insert(values, val); end |
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131 end |
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132 table.sort(values); |
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133 if field.attr.var == "FORM_TYPE" then |
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134 FORM_TYPE = values[1]; |
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135 elseif #values > 0 then |
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136 table.insert(form, field.attr.var.."\0"..table.concat(values, "<")); |
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137 else |
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138 table.insert(form, field.attr.var); |
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139 end |
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140 end |
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141 end |
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142 table.sort(form); |
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143 form = table.concat(form, "<"); |
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144 if FORM_TYPE then form = FORM_TYPE.."\0"..form; end |
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145 table.insert(extensions, form); |
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146 end |
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147 end |
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148 table.sort(identities); |
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149 table.sort(features); |
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150 table.sort(extensions); |
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151 if #identities > 0 then identities = table.concat(identities, "<"):gsub("%z", "/").."<"; else identities = ""; end |
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152 if #features > 0 then features = table.concat(features, "<").."<"; else features = ""; end |
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153 if #extensions > 0 then extensions = table.concat(extensions, "<"):gsub("%z", "<").."<"; else extensions = ""; end |
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154 local S = identities..features..extensions; |
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155 local ver = base64(sha1(S)); |
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156 return ver, S; |
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157 end |
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158 |
109 module:hook("iq/bare/disco", function(event) |
159 module:hook("iq/bare/disco", function(event) |
110 local session, stanza = event.origin, event.stanza; |
160 local session, stanza = event.origin, event.stanza; |
111 if stanza.attr.type == "result" then |
161 if stanza.attr.type == "result" then |
112 local disco = stanza.tags[1]; |
162 local disco = stanza.tags[1]; |
113 if disco and disco.name == "query" and disco.attr.xmlns == "http://jabber.org/protocol/disco#info" then |
163 if disco and disco.name == "query" and disco.attr.xmlns == "http://jabber.org/protocol/disco#info" then |
114 -- Process disco response |
164 -- Process disco response |
115 -- TODO check if waiting for recipient's response |
165 local user = stanza.attr.to or (session.username..'@'..session.host); |
116 local hash; -- TODO calculate hash |
166 local contact = stanza.attr.from; |
117 -- TODO update hash map |
167 local current = recipients[user] and recipients[user][contact]; |
118 -- TODO set recipient's data to calculated data |
168 if type(current) ~= "string" then return; end -- check if waiting for recipient's response |
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169 local ver = current; |
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170 if not string.find(current, "#") then |
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171 ver = calculate_hash(disco.tags); -- calculate hash |
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172 end |
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173 local notify = {}; |
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174 for _, feature in pairs(disco.tags) do |
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175 if feature.name == "feature" and feature.attr.var then |
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176 local nfeature = feature.attr.var:match("^(.*)+notify$"); |
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177 if nfeature then notify[nfeature] = true; end |
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178 end |
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179 end |
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180 hash_map[ver] = notify; -- update hash map |
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181 recipients[user][contact] = notify; -- set recipient's data to calculated data |
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182 -- send messages to recipient |
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183 local d = data[user]; |
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184 if d then |
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185 for node, message in pairs(notify) do |
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186 if d[node] then |
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187 message.attr.to = stanza.attr.from; |
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188 session.send(message); |
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189 end |
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190 end |
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191 end |
119 end |
192 end |
120 end |
193 end |
121 end); |
194 end); |