Annotate

main.lua @ 2:9bb397205f26

Working presence!
author matthew
date Sun, 24 Aug 2008 04:34:01 +0000
parent 1:b8787e859fd2
child 4:09c3845ed442
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1 require "luarocks.require"
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2
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3 server = require "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 init_xmlhandlers = 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.usermanager"
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17 require "util.stanza"
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18 require "util.jid"
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19
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20 -- Locals for faster access --
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21 local t_insert = table.insert;
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22 local t_concat = table.concat;
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23 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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24 local m_random = math.random;
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25 local format = string.format;
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26 local st = stanza;
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27 ------------------------------
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28
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29 sessions = {};
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30 hosts = {
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31 ["localhost"] = {
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32 type = "local";
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33 connected = true;
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34 sessions = {};
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35 };
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36 ["getjabber.ath.cx"] = {
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37 type = "local";
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38 connected = true;
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39 sessions = {};
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40 };
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41 }
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42
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43 local hosts, users = hosts, users;
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44
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45 --local ssl_ctx, msg = ssl.newcontext { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
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46 -- certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
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47 --
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48 --if not ssl_ctx then error("Failed to initialise SSL/TLS support: "..tostring(msg)); end
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49
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50
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51 local ssl_ctx = { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
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52 certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
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53
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54
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55 function connect_host(host)
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56 hosts[host] = { type = "remote", sendbuffer = {} };
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57 end
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58
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59 local function send_to(session, to, stanza)
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60 local node, host, resource = jid.split(to);
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61 if not hosts[host] then
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62 -- s2s
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63 elseif hosts[host].type == "local" then
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64 print(" ...is to a local user")
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65 local destuser = hosts[host].sessions[node];
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66 if destuser and destuser.sessions then
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67 if not destuser.sessions[resource] then
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68 local best_session;
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69 for resource, session in pairs(destuser.sessions) do
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70 if not best_session then best_session = session;
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71 elseif session.priority >= best_session.priority and session.priority >= 0 then
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72 best_session = session;
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73 end
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74 end
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75 if not best_session then
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76 offlinemessage.new(node, host, stanza);
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77 else
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78 print("resource '"..resource.."' was not online, have chosen to send to '"..best_session.username.."@"..best_session.host.."/"..best_session.resource.."'");
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79 resource = best_session.resource;
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80 end
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81 end
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82 if destuser.sessions[resource] == session then
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83 log("warn", "core", "Attempt to send stanza to self, dropping...");
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84 else
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85 print("...sending...", tostring(stanza));
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86 --destuser.sessions[resource].conn.write(tostring(data));
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87 print(" to conn ", destuser.sessions[resource].conn);
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88 destuser.sessions[resource].conn.write(tostring(stanza));
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89 print("...sent")
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90 end
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91 elseif stanza.name == "message" then
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92 print(" ...will be stored offline");
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93 offlinemessage.new(node, host, stanza);
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94 elseif stanza.name == "iq" then
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95 print(" ...is an iq");
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96 session.send(st.reply(stanza)
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97 :tag("error", { type = "cancel" })
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98 :tag("service-unavailable", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" }));
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99 end
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100 print(" ...done routing");
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101 end
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102 end
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103
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104 function handler(conn, data, err)
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105 local session = sessions[conn];
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106
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107 if not session then
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108 sessions[conn] = { conn = conn, notopen = true, priority = 0 };
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109 session = sessions[conn];
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110
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111 -- Logging functions --
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112
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113 local mainlog, log = log;
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114 do
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115 local conn_name = tostring(conn):match("%w+$");
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116 log = function (type, area, message) mainlog(type, conn_name, message); end
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117 end
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118 local print = function (...) log("info", "core", t_concatall({...}, "\t")); end
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119 session.log = log;
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120
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121 -- -- --
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122
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123 -- Send buffers --
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124
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125 local send = function (data) print("Sending...", tostring(data)); conn.write(tostring(data)); end;
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126 session.send, session.send_to = send, send_to;
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127
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128 print("Client connected");
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129
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130 session.stanza_dispatch = init_stanza_dispatcher(session);
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131 session.xml_handlers = init_xmlhandlers(session);
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132 session.parser = lxp.new(session.xml_handlers, ":");
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133
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134 function session.disconnect(err)
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135 hosts[session.host].sessions[session.username] = nil;
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136 session = nil;
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137 print("Disconnected: "..err);
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138 end
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139 end
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140 if data then
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141 session.parser:parse(data);
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142 end
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143
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144 --log("info", "core", "Client disconnected, connection closed");
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145 end
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146
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147 function disconnect(conn, err)
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148 sessions[conn].disconnect(err);
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149 end
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150
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151 print("ssl_ctx:", type(ssl_ctx));
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152
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153 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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154
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155
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156 local protected_handler = function (...) local success, ret = pcall(handler, ...); if not success then print("ERROR on "..tostring((select(1, ...)))..": "..ret); end end;
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157
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158 print( server.add( { listener = protected_handler, disconnect = disconnect }, 5222, "*", 1, nil ) ) -- server.add will send a status message
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159 print( server.add( { listener = protected_handler, disconnect = disconnect }, 5223, "*", 1, ssl_ctx ) ) -- server.add will send a status message
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160
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161 server.loop();