Software / code / prosody
Annotate
core/sessionmanager.lua @ 680:734994b61907
Restore fix for missing last_add on deserialized stanzas. Thanks to tsing for discovering.
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Fri, 09 Jan 2009 17:27:53 +0000 |
| parent | 623:5af5a64a729f |
| child | 694:b97b05261156 |
| rev | line source |
|---|---|
| 615 | 1 -- Prosody IM v0.2 |
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2 -- Copyright (C) 2008 Matthew Wild |
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3 -- Copyright (C) 2008 Waqas Hussain |
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4 -- |
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5 -- This program is free software; you can redistribute it and/or |
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6 -- modify it under the terms of the GNU General Public License |
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7 -- as published by the Free Software Foundation; either version 2 |
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8 -- of the License, or (at your option) any later version. |
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9 -- |
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10 -- This program is distributed in the hope that it will be useful, |
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 -- GNU General Public License for more details. |
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14 -- |
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15 -- You should have received a copy of the GNU General Public License |
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16 -- along with this program; if not, write to the Free Software |
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 -- |
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19 |
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20 |
| 30 | 21 |
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22 local tonumber, tostring = tonumber, tostring; |
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126
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23 local ipairs, pairs, print, next= ipairs, pairs, print, next; |
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24 local collectgarbage = collectgarbage; |
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25 local m_random = import("math", "random"); |
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26 local format = import("string", "format"); |
| 38 | 27 |
| 28 local hosts = hosts; | |
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29 local sessions = sessions; |
| 38 | 30 |
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31 local modulemanager = require "core.modulemanager"; |
| 30 | 32 local log = require "util.logger".init("sessionmanager"); |
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33 local error = error; |
| 145 | 34 local uuid_generate = require "util.uuid".generate; |
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35 local rm_load_roster = require "core.rostermanager".load_roster; |
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36 local config_get = require "core.configmanager".get; |
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37 |
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38 local fire_event = require "core.eventmanager".fire_event; |
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39 |
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40 local gettime = require "socket".gettime; |
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41 |
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42 local st = require "util.stanza"; |
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43 |
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44 local newproxy = newproxy; |
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45 local getmetatable = getmetatable; |
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46 |
| 30 | 47 module "sessionmanager" |
| 48 | |
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49 local open_sessions = 0; |
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50 |
| 30 | 51 function new_session(conn) |
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52 local session = { conn = conn, priority = 0, type = "c2s_unauthed", conntime = gettime() }; |
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53 if true then |
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54 session.trace = newproxy(true); |
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55 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; |
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56 end |
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57 open_sessions = open_sessions + 1; |
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58 log("info", "open sessions now: ".. open_sessions); |
| 30 | 59 local w = conn.write; |
| 60 session.send = function (t) w(tostring(t)); end | |
| 61 return session; | |
| 62 end | |
| 63 | |
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64 function destroy_session(session, err) |
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65 (session.log or log)("info", "Destroying session"); |
| 331 | 66 |
| 67 -- Send unavailable presence | |
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68 if session.presence then |
| 331 | 69 local pres = st.presence{ type = "unavailable" }; |
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70 if (not err) or err == "closed" then err = "connection closed"; end |
| 331 | 71 pres:tag("status"):text("Disconnected: "..err); |
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72 session:dispatch_stanza(pres); |
| 331 | 73 end |
| 74 | |
| 75 -- Remove session/resource from user's session list | |
| 148 | 76 if session.host and session.username then |
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77 -- FIXME: How can the below ever be nil? (but they sometimes are...) |
| 148 | 78 if hosts[session.host] and hosts[session.host].sessions[session.username] then |
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79 if session.resource then |
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80 hosts[session.host].sessions[session.username].sessions[session.resource] = nil; |
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81 end |
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82 |
| 148 | 83 if not next(hosts[session.host].sessions[session.username].sessions) then |
| 84 log("debug", "All resources of %s are now offline", session.username); | |
| 85 hosts[session.host].sessions[session.username] = nil; | |
| 86 end | |
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87 else |
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88 log("error", "host or session table didn't exist, please report this! Host: %s [%s] Sessions: %s [%s]", |
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89 tostring(hosts[session.host]), tostring(session.host), |
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90 tostring(hosts[session.host].sessions[session.username] ), tostring(session.username)); |
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91 end |
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92 end |
| 331 | 93 |
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94 for k in pairs(session) do |
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95 if k ~= "trace" then |
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96 session[k] = nil; |
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97 end |
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98 end |
| 38 | 99 end |
| 100 | |
| 101 function make_authenticated(session, username) | |
| 102 session.username = username; | |
| 103 if session.type == "c2s_unauthed" then | |
| 104 session.type = "c2s"; | |
| 105 end | |
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106 return true; |
| 38 | 107 end |
| 108 | |
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109 -- returns true, nil on success |
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110 -- returns nil, err_type, err, err_message on failure |
| 38 | 111 function bind_resource(session, resource) |
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112 if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end |
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113 if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end |
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114 -- We don't support binding multiple resources |
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115 |
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116 resource = resource or uuid_generate(); |
| 38 | 117 --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing |
| 118 | |
| 119 if not hosts[session.host].sessions[session.username] then | |
| 120 hosts[session.host].sessions[session.username] = { sessions = {} }; | |
| 121 else | |
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122 local sessions = hosts[session.host].sessions[session.username].sessions; |
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123 local limit = config_get(session.host, "core", "max_resources") or 10; |
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124 if #sessions >= limit then |
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125 return nil, "cancel", "conflict", "Resource limit reached; only "..limit.." resources allowed"; |
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126 end |
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127 if sessions[resource] then |
| 38 | 128 -- Resource conflict |
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129 local policy = config_get(session.host, "core", "conflict_resolve"); |
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130 local increment; |
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131 if policy == "random" then |
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132 resource = uuid_generate(); |
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133 increment = true; |
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134 elseif policy == "increment" then |
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135 increment = true; -- TODO ping old resource |
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136 elseif policy == "kick_new" then |
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137 return nil, "cancel", "conflict", "Resource already exists"; |
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138 else -- if policy == "kick_old" then |
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139 hosts[session.host].sessions[session.username].sessions[resource]:close { |
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140 condition = "conflict"; |
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141 text = "Replaced by new connection"; |
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142 }; |
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143 end |
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144 if increment and sessions[resource] then |
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145 local count = 1; |
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146 while sessions[resource.."#"..count] do |
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147 count = count + 1; |
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148 end |
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149 resource = resource.."#"..count; |
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150 end |
| 38 | 151 end |
| 152 end | |
| 153 | |
| 154 session.resource = resource; | |
| 155 session.full_jid = session.username .. '@' .. session.host .. '/' .. resource; | |
| 156 hosts[session.host].sessions[session.username].sessions[resource] = session; | |
| 157 | |
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158 session.roster = rm_load_roster(session.username, session.host); |
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159 |
| 38 | 160 return true; |
| 161 end | |
| 162 | |
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163 function streamopened(session, attr) |
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164 local send = session.send; |
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165 session.host = attr.to or error("Client failed to specify destination hostname"); |
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166 session.version = tonumber(attr.version) or 0; |
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167 session.streamid = m_random(1000000, 99999999); |
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168 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); |
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169 |
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170 |
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171 send("<?xml version='1.0'?>"); |
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172 send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host)); |
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173 |
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174 if not hosts[session.host] then |
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175 -- We don't serve this host... |
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176 session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; |
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177 return; |
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178 end |
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179 |
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180 |
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181 local features = st.stanza("stream:features"); |
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182 fire_event("stream-features", session, features); |
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183 |
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184 send(features); |
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185 |
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186 (session.log or log)("info", "Sent reply <stream:stream> to client"); |
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187 session.notopen = nil; |
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188 end |
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189 |
|
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190 function send_to_available_resources(user, host, stanza) |
|
176
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191 local count = 0; |
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192 local to = stanza.attr.to; |
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193 stanza.attr.to = nil; |
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194 local h = hosts[host]; |
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195 if h and h.type == "local" then |
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196 local u = h.sessions[user]; |
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197 if u then |
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198 for k, session in pairs(u.sessions) do |
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199 if session.presence then |
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200 session.send(stanza); |
|
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201 count = count + 1; |
|
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202 end |
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203 end |
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204 end |
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205 end |
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206 stanza.attr.to = to; |
|
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207 return count; |
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208 end |
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209 |
|
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210 return _M; |
