prosody
bcf539295f2d
main.lua

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main.lua @ 30:bcf539295f2d

Huge commit to: * Break stanza routing (to be restored in a future commit) * Remove the old stanza_dispatcher code, which was never going to be maintainable nor extendable :) * Bring us plugins, starting with mod_legacyauth and mod_roster * Sessions are now created/destroyed using a standard sessionmanager interface
author Matthew Wild <mwild1@gmail.com>
date Tue, 30 Sep 2008 19:52:00 +0100
parent 20:6885fd2cf51f
child 33:091f91a1f67a
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1 require "luarocks.require"
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2
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3 server = require "net.server"
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4 require "socket"
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5 require "ssl"
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6 require "lxp"
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7
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8 function log(type, area, message)
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9 print(type, area, message);
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10 end
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11
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12 require "core.stanza_dispatch"
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13 require "core.xmlhandlers"
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14 require "core.rostermanager"
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15 require "core.offlinemessage"
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16 require "core.modulemanager"
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17 require "core.usermanager"
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18 require "core.sessionmanager"
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19 require "core.stanza_router"
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20 require "util.stanza"
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21 require "util.jid"
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22
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23 -- Locals for faster access --
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24 local t_insert = table.insert;
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25 local t_concat = table.concat;
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26 local t_concatall = function (t, sep) local tt = {}; for _, s in ipairs(t) do t_insert(tt, tostring(s)); end return t_concat(tt, sep); end
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27 local m_random = math.random;
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28 local format = string.format;
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29 local st = stanza;
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30 local init_xmlhandlers = xmlhandlers.init_xmlhandlers;
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31 ------------------------------
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32
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33 sessions = {};
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34 hosts = {
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35 ["localhost"] = {
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36 type = "local";
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37 connected = true;
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38 sessions = {};
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39 };
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40 ["getjabber.ath.cx"] = {
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41 type = "local";
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42 connected = true;
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43 sessions = {};
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44 };
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45 }
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46
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47 local hosts, users = hosts, users;
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48
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49 local ssl_ctx = { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
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50 certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
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51
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52
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53 function connect_host(host)
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54 hosts[host] = { type = "remote", sendbuffer = {} };
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55 end
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56
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57 local function route_stanza(stanza)
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58 if not stanza.attr.to then
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59 -- Has no 'to' attribute, handle internally
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60 end
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61 local node, host, resource = jid.split(stanza.attr.to);
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62 if host and hosts[host] and hosts[host].type == "local" then
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63 -- Is a local host, handle internally
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64
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65 else
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66 -- Is not for us or a local user, route accordingly
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67 end
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68 end
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69
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70 local function send_to(session, to, stanza)
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71 local node, host, resource = jid.split(to);
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72 if not hosts[host] then
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73 -- s2s
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74 elseif hosts[host].type == "local" then
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75 print(" ...is to a local user")
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76 local destuser = hosts[host].sessions[node];
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77 if destuser and destuser.sessions then
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78 if not destuser.sessions[resource] then
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79 local best_session;
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80 for resource, session in pairs(destuser.sessions) do
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81 if not best_session then best_session = session;
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82 elseif session.priority >= best_session.priority and session.priority >= 0 then
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83 best_session = session;
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84 end
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85 end
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86 if not best_session then
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87 offlinemessage.new(node, host, stanza);
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88 else
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89 print("resource '"..resource.."' was not online, have chosen to send to '"..best_session.username.."@"..best_session.host.."/"..best_session.resource.."'");
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90 resource = best_session.resource;
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91 end
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92 end
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93 if destuser.sessions[resource] == session then
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94 log("warn", "core", "Attempt to send stanza to self, dropping...");
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95 else
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96 print("...sending...", tostring(stanza));
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97 --destuser.sessions[resource].conn.write(tostring(data));
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98 print(" to conn ", destuser.sessions[resource].conn);
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99 destuser.sessions[resource].conn.write(tostring(stanza));
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100 print("...sent")
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101 end
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102 elseif stanza.name == "message" then
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103 print(" ...will be stored offline");
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104 offlinemessage.new(node, host, stanza);
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105 elseif stanza.name == "iq" then
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106 print(" ...is an iq");
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107 session.send(st.reply(stanza)
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108 :tag("error", { type = "cancel" })
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109 :tag("service-unavailable", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" }));
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110 end
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111 print(" ...done routing");
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112 end
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113 end
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114
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115 function handler(conn, data, err)
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116 local session = sessions[conn];
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117
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118 if not session then
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119 sessions[conn] = sessionmanager.new_session(conn);
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120 session = sessions[conn];
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121
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122 -- Logging functions --
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123
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124 local mainlog, log = log;
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125 do
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126 local conn_name = tostring(conn):match("%w+$");
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127 log = function (type, area, message) mainlog(type, conn_name, message); end
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128 --log = function () end
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129 end
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130 local print = function (...) log("info", "core", t_concatall({...}, "\t")); end
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131 session.log = log;
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132
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133 print("Client connected");
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134
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135 session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end
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136 session.xml_handlers = init_xmlhandlers(session);
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137 session.parser = lxp.new(session.xml_handlers, ":");
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138
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139 function session.disconnect(err)
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140 if session.last_presence and session.last_presence.attr.type ~= "unavailable" then
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141 local pres = st.presence{ type = "unavailable" };
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142 if err == "closed" then err = "connection closed"; end
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143 pres:tag("status"):text("Disconnected: "..err);
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144 session.stanza_dispatch(pres);
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145 end
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146 if session.username then
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147 hosts[session.host].sessions[session.username] = nil;
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148 end
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149 session = nil;
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150 print("Disconnected: "..err);
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151 collectgarbage("collect");
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152 end
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153 end
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154 if data then
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155 session.parser:parse(data);
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156 end
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157
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158 --log("info", "core", "Client disconnected, connection closed");
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159 end
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160
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161 function disconnect(conn, err)
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162 sessions[conn].disconnect(err);
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163 end
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164
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165 setmetatable(_G, { __index = function (t, k) print("WARNING: ATTEMPT TO READ A NIL GLOBAL!!!", k); error("Attempt to read a non-existent global. Naughty boy.", 2); end, __newindex = function (t, k, v) print("ATTEMPT TO SET A GLOBAL!!!!", tostring(k).." = "..tostring(v)); error("Attempt to set a global. Naughty boy.", 2); end }) --]][][[]][];
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166
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167 modulemanager.loadall();
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168
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169 local protected_handler = function (conn, data, err) local success, ret = pcall(handler, conn, data, err); if not success then print("ERROR on "..tostring(conn)..": "..ret); conn:close(); end end;
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170 local protected_disconnect = function (conn, err) local success, ret = pcall(disconnect, conn, err); if not success then print("ERROR on "..tostring(conn).." disconnect: "..ret); conn:close(); end end;
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171
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172 server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5222, "*", 1, nil ) -- server.add will send a status message
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173 server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5223, "*", 1, ssl_ctx ) -- server.add will send a status message
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174
b8787e859fd2 Switched to new connection framework, courtesy of the luadch project
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175 server.loop();