Tue, 18 Aug 2009 12:37:40 +0500
mod_disco: Handle disco#info queries using new APIs
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1 | -- Prosody IM |
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2 | -- Copyright (C) 2008-2009 Matthew Wild |
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3 | -- Copyright (C) 2008-2009 Waqas Hussain |
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4 | -- |
758 | 5 | -- This project is MIT/X11 licensed. Please see the |
6 | -- COPYING file in the source package for more information. | |
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7 | -- |
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8 | |
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9 | |
30 | 10 | |
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Move stream opening handling from xmlhandlers to sessionmanager
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11 | local tonumber, tostring = tonumber, tostring; |
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Final fix for marking user offline when all resources are gone :)
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12 | local ipairs, pairs, print, next= ipairs, pairs, print, next; |
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13 | local collectgarbage = collectgarbage; |
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New "import" module to help tidy up all the local declarations at the top of modules
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14 | local m_random = import("math", "random"); |
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15 | local format = import("string", "format"); |
38 | 16 | |
17 | local hosts = hosts; | |
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sessionmanager: Added reference to globals full_sessions and bare_sessions
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18 | local full_sessions = full_sessions; |
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19 | local bare_sessions = bare_sessions; |
38 | 20 | |
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21 | local modulemanager = require "core.modulemanager"; |
30 | 22 | local log = require "util.logger".init("sessionmanager"); |
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23 | local error = error; |
145 | 24 | local uuid_generate = require "util.uuid".generate; |
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Added some roster management functions
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25 | local rm_load_roster = require "core.rostermanager".load_roster; |
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26 | local config_get = require "core.configmanager".get; |
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Fixed: sessionmanager: Apply nameprep on hostname passed in stream tag (part of issue #57)
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27 | local nameprep = require "util.encodings".stringprep.nameprep; |
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28 | |
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29 | local fire_event = require "core.eventmanager".fire_event; |
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30 | |
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31 | local gettime = require "socket".gettime; |
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32 | |
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Fix sending of unavailable presence on disconnect
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33 | local st = require "util.stanza"; |
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34 | |
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35 | local newproxy = newproxy; |
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36 | local getmetatable = getmetatable; |
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37 | |
30 | 38 | module "sessionmanager" |
39 | ||
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40 | local open_sessions = 0; |
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41 | |
30 | 42 | function new_session(conn) |
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43 | local session = { conn = conn, type = "c2s_unauthed", conntime = gettime() }; |
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44 | if true then |
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45 | session.trace = newproxy(true); |
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46 | getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; |
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47 | end |
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48 | open_sessions = open_sessions + 1; |
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49 | log("debug", "open sessions now: ".. open_sessions); |
30 | 50 | local w = conn.write; |
51 | session.send = function (t) w(tostring(t)); end | |
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52 | session.ip = conn.ip(); |
30 | 53 | return session; |
54 | end | |
55 | ||
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56 | function destroy_session(session, err) |
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57 | (session.log or log)("info", "Destroying session for %s (%s@%s)", session.full_jid or "(unknown)", session.username or "(unknown)", session.host or "(unknown)"); |
331 | 58 | |
59 | -- Remove session/resource from user's session list | |
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sessionmanager: Fixed an old FIXME: A problem caused by an error on an authenticated but unbound session
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60 | if session.full_jid then |
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sessionmanager: Replace raw session by an event data table for resource bind/unbind events, allowing extra data
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61 | hosts[session.host].events.fire_event("resource-unbind", {session=session, error=err}); |
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sessionmanager: Fire event on resource unbind
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62 | |
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63 | hosts[session.host].sessions[session.username].sessions[session.resource] = nil; |
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64 | full_sessions[session.full_jid] = nil; |
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65 | |
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66 | if not next(hosts[session.host].sessions[session.username].sessions) then |
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67 | log("debug", "All resources of %s are now offline", session.username); |
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68 | hosts[session.host].sessions[session.username] = nil; |
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sessionmanager: It really is username@host, not host@username :)
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69 | bare_sessions[session.username..'@'..session.host] = nil; |
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70 | end |
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71 | end |
331 | 72 | |
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73 | for k in pairs(session) do |
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74 | if k ~= "trace" then |
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75 | session[k] = nil; |
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76 | end |
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77 | end |
38 | 78 | end |
79 | ||
80 | function make_authenticated(session, username) | |
81 | session.username = username; | |
82 | if session.type == "c2s_unauthed" then | |
83 | session.type = "c2s"; | |
84 | end | |
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85 | session.log("info", "Authenticated as %s@%s", username or "(unknown)", session.host or "(unknown)"); |
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86 | return true; |
38 | 87 | end |
88 | ||
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89 | -- returns true, nil on success |
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90 | -- returns nil, err_type, err, err_message on failure |
38 | 91 | function bind_resource(session, resource) |
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92 | if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end |
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93 | if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end |
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94 | -- We don't support binding multiple resources |
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95 | |
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96 | resource = resource or uuid_generate(); |
38 | 97 | --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing |
98 | ||
99 | if not hosts[session.host].sessions[session.username] then | |
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100 | local sessions = { sessions = {} }; |
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101 | hosts[session.host].sessions[session.username] = sessions; |
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102 | bare_sessions[session.username..'@'..session.host] = sessions; |
38 | 103 | else |
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104 | local sessions = hosts[session.host].sessions[session.username].sessions; |
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105 | local limit = config_get(session.host, "core", "max_resources") or 10; |
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106 | if #sessions >= limit then |
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107 | return nil, "cancel", "conflict", "Resource limit reached; only "..limit.." resources allowed"; |
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108 | end |
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109 | if sessions[resource] then |
38 | 110 | -- Resource conflict |
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111 | local policy = config_get(session.host, "core", "conflict_resolve"); |
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112 | local increment; |
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113 | if policy == "random" then |
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114 | resource = uuid_generate(); |
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115 | increment = true; |
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116 | elseif policy == "increment" then |
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117 | increment = true; -- TODO ping old resource |
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118 | elseif policy == "kick_new" then |
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119 | return nil, "cancel", "conflict", "Resource already exists"; |
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120 | else -- if policy == "kick_old" then |
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121 | sessions[resource]:close { |
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122 | condition = "conflict"; |
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123 | text = "Replaced by new connection"; |
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124 | }; |
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125 | if not next(sessions) then |
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126 | hosts[session.host].sessions[session.username] = { sessions = sessions }; |
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127 | bare_sessions[session.username.."@"..session.host] = hosts[session.host].sessions[session.username]; |
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128 | end |
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129 | end |
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130 | if increment and sessions[resource] then |
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131 | local count = 1; |
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132 | while sessions[resource.."#"..count] do |
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133 | count = count + 1; |
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134 | end |
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135 | resource = resource.."#"..count; |
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136 | end |
38 | 137 | end |
138 | end | |
139 | ||
140 | session.resource = resource; | |
141 | session.full_jid = session.username .. '@' .. session.host .. '/' .. resource; | |
142 | hosts[session.host].sessions[session.username].sessions[resource] = session; | |
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143 | full_sessions[session.full_jid] = session; |
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145 | session.roster = rm_load_roster(session.username, session.host); |
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146 | |
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147 | hosts[session.host].events.fire_event("resource-bind", {session=session}); |
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148 | |
38 | 149 | return true; |
150 | end | |
151 | ||
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152 | function streamopened(session, attr) |
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153 | local send = session.send; |
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154 | session.host = attr.to or error("Client failed to specify destination hostname"); |
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155 | session.host = nameprep(session.host); |
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156 | session.version = tonumber(attr.version) or 0; |
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157 | session.streamid = m_random(1000000, 99999999); |
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158 | (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); |
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159 | |
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160 | send("<?xml version='1.0'?>"); |
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161 | send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host)); |
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162 | |
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163 | if not hosts[session.host] then |
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164 | -- We don't serve this host... |
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165 | session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; |
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166 | return; |
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167 | end |
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168 | |
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169 | -- If session.secure is *false* (not nil) then it means we /were/ encrypting |
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170 | -- since we now have a new stream header, session is secured |
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171 | if session.secure == false then |
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172 | session.secure = true; |
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173 | end |
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174 | |
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175 | local features = st.stanza("stream:features"); |
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176 | fire_event("stream-features", session, features); |
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177 | |
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178 | send(features); |
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179 | |
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180 | (session.log or log)("debug", "Sent reply <stream:stream> to client"); |
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181 | session.notopen = nil; |
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182 | end |
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183 | |
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184 | function streamclosed(session) |
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185 | session.send("</stream:stream>"); |
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186 | session.notopen = true; |
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187 | end |
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188 | |
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189 | function send_to_available_resources(user, host, stanza) |
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190 | local count = 0; |
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191 | local to = stanza.attr.to; |
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192 | stanza.attr.to = nil; |
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193 | local h = hosts[host]; |
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194 | if h and h.type == "local" then |
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195 | local u = h.sessions[user]; |
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196 | if u then |
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197 | for k, session in pairs(u.sessions) do |
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198 | if session.presence then |
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199 | session.send(stanza); |
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200 | count = count + 1; |
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201 | end |
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202 | end |
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203 | end |
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204 | end |
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205 | stanza.attr.to = to; |
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206 | return count; |
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207 | end |
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208 | |
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209 | return _M; |