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core/sessionmanager.lua @ 474:666e22848890
Use unsigned int instead of uint because uint is already in use on OS X.
| author | Tobias Markmann <tm@ayena.de> |
|---|---|
| date | Fri, 28 Nov 2008 19:24:08 +0100 |
| parent | 429:b1d86f89fa27 |
| child | 519:cccd610a0ef9 |
| rev | line source |
|---|---|
| 30 | 1 |
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2 local tonumber, tostring = tonumber, tostring; |
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3 local ipairs, pairs, print, next= ipairs, pairs, print, next; |
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4 local collectgarbage = collectgarbage; |
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5 local m_random = import("math", "random"); |
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6 local format = import("string", "format"); |
| 38 | 7 |
| 8 local hosts = hosts; | |
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9 local sessions = sessions; |
| 38 | 10 |
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11 local modulemanager = require "core.modulemanager"; |
| 30 | 12 local log = require "util.logger".init("sessionmanager"); |
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13 local error = error; |
| 145 | 14 local uuid_generate = require "util.uuid".generate; |
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15 local rm_load_roster = require "core.rostermanager".load_roster; |
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16 local config_get = require "core.configmanager".get; |
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17 |
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18 local st = require "util.stanza"; |
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19 |
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20 local newproxy = newproxy; |
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21 local getmetatable = getmetatable; |
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22 |
| 30 | 23 module "sessionmanager" |
| 24 | |
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25 local open_sessions = 0; |
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26 |
| 30 | 27 function new_session(conn) |
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28 local session = { conn = conn, priority = 0, type = "c2s_unauthed" }; |
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29 if true then |
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30 session.trace = newproxy(true); |
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31 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; print("Session got collected, now "..open_sessions.." sessions are allocated") end; |
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32 end |
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33 open_sessions = open_sessions + 1; |
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34 log("info", "open sessions now: ".. open_sessions); |
| 30 | 35 local w = conn.write; |
| 36 session.send = function (t) w(tostring(t)); end | |
| 37 return session; | |
| 38 end | |
| 39 | |
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40 function destroy_session(session, err) |
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41 (session.log or log)("info", "Destroying session"); |
| 331 | 42 |
| 43 -- Send unavailable presence | |
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44 if session.presence then |
| 331 | 45 local pres = st.presence{ type = "unavailable" }; |
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46 if (not err) or err == "closed" then err = "connection closed"; end |
| 331 | 47 pres:tag("status"):text("Disconnected: "..err); |
| 48 session.stanza_dispatch(pres); | |
| 49 end | |
| 50 | |
| 51 -- Remove session/resource from user's session list | |
| 148 | 52 if session.host and session.username then |
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53 if session.resource then |
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54 hosts[session.host].sessions[session.username].sessions[session.resource] = nil; |
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55 end |
| 148 | 56 if hosts[session.host] and hosts[session.host].sessions[session.username] then |
| 57 if not next(hosts[session.host].sessions[session.username].sessions) then | |
| 58 log("debug", "All resources of %s are now offline", session.username); | |
| 59 hosts[session.host].sessions[session.username] = nil; | |
| 60 end | |
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61 end |
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62 end |
| 331 | 63 |
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64 for k in pairs(session) do |
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65 if k ~= "trace" then |
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66 session[k] = nil; |
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67 end |
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68 end |
| 38 | 69 end |
| 70 | |
| 71 function make_authenticated(session, username) | |
| 72 session.username = username; | |
| 73 if session.type == "c2s_unauthed" then | |
| 74 session.type = "c2s"; | |
| 75 end | |
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76 return true; |
| 38 | 77 end |
| 78 | |
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79 -- returns true, nil on success |
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80 -- returns nil, err_type, err, err_message on failure |
| 38 | 81 function bind_resource(session, resource) |
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82 if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end |
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83 if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end |
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84 -- We don't support binding multiple resources |
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85 |
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86 resource = resource or uuid_generate(); |
| 38 | 87 --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing |
| 88 | |
| 89 if not hosts[session.host].sessions[session.username] then | |
| 90 hosts[session.host].sessions[session.username] = { sessions = {} }; | |
| 91 else | |
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92 local sessions = hosts[session.host].sessions[session.username].sessions; |
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93 local limit = config_get(session.host, "core", "max_resources") or 10; |
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94 if #sessions >= limit then |
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95 return nil, "cancel", "conflict", "Resource limit reached; only "..limit.." resources allowed"; |
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96 end |
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97 if sessions[resource] then |
| 38 | 98 -- Resource conflict |
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99 local policy = config_get(session.host, "core", "conflict_resolve"); |
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100 local increment; |
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101 if policy == "random" then |
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102 resource = uuid_generate(); |
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103 increment = true; |
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104 elseif policy == "increment" then |
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105 increment = true; -- TODO ping old resource |
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106 elseif policy == "kick_new" then |
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107 return nil, "cancel", "conflict", "Resource already exists"; |
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108 else -- if policy == "kick_old" then |
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109 hosts[session.host].sessions[session.username].sessions[resource]:close { |
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110 condition = "conflict"; |
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111 text = "Replaced by new connection"; |
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112 }; |
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113 end |
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114 if increment and sessions[resource] then |
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115 local count = 1; |
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116 while sessions[resource.."#"..count] do |
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117 count = count + 1; |
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118 end |
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119 resource = resource.."#"..count; |
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120 end |
| 38 | 121 end |
| 122 end | |
| 123 | |
| 124 session.resource = resource; | |
| 125 session.full_jid = session.username .. '@' .. session.host .. '/' .. resource; | |
| 126 hosts[session.host].sessions[session.username].sessions[resource] = session; | |
| 127 | |
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128 session.roster = rm_load_roster(session.username, session.host); |
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129 |
| 38 | 130 return true; |
| 131 end | |
| 132 | |
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133 function streamopened(session, attr) |
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134 local send = session.send; |
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135 session.host = attr.to or error("Client failed to specify destination hostname"); |
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136 session.version = tonumber(attr.version) or 0; |
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137 session.streamid = m_random(1000000, 99999999); |
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138 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); |
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139 |
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140 |
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141 send("<?xml version='1.0'?>"); |
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142 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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143 |
|
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144 if not hosts[session.host] then |
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145 -- We don't serve this host... |
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146 session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)}; |
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147 return; |
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148 end |
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Allow us to close client connections, with or without a stream error. Partially fixes #8, we still need the same for s2s (though it should be almost a straight copy of the code, I'm too tired atm)
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149 |
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Allow us to close client connections, with or without a stream error. Partially fixes #8, we still need the same for s2s (though it should be almost a straight copy of the code, I'm too tired atm)
Matthew Wild <mwild1@gmail.com>
parents:
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150 |
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357
17bcecb06420
Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
Matthew Wild <mwild1@gmail.com>
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151 local features = st.stanza("stream:features"); |
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40
2c0147bbd81a
Move stream opening handling from xmlhandlers to sessionmanager
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152 modulemanager.fire_event("stream-features", session, features); |
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153 |
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357
17bcecb06420
Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
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parents:
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154 send(features); |
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155 |
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Use a stanza for c2s stream features instead of an array of strings. Removes a FIXME.
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parents:
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156 (session.log or log)("info", "Sent reply <stream:stream> to client"); |
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157 session.notopen = nil; |
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158 end |
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159 |
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175
5f71d290bb44
Routing code reorganization
Waqas Hussain <waqas20@gmail.com>
parents:
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160 function send_to_available_resources(user, host, stanza) |
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176
e5cd2a03891d
Outbound presence subscription
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161 local count = 0; |
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175
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162 local to = stanza.attr.to; |
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163 stanza.attr.to = nil; |
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164 local h = hosts[host]; |
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165 if h and h.type == "local" then |
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166 local u = h.sessions[user]; |
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167 if u then |
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168 for k, session in pairs(u.sessions) do |
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169 if session.presence then |
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170 session.send(stanza); |
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176
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171 count = count + 1; |
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175
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172 end |
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173 end |
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174 end |
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175 end |
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176 stanza.attr.to = to; |
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176
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177 return count; |
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178 end |
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179 |
| 30 | 180 return _M; |
