main.lua

changeset 5
57e4eb3aeac0
child 6
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equal deleted inserted replaced
-1:000000000000 5:57e4eb3aeac0
1 require "luarocks.require"
2
3 server = require "server"
4 require "socket"
5 require "ssl"
6 require "lxp"
7
8 function log(type, area, message)
9 print(type, area, message);
10 end
11
12 require "core.stanza_dispatch"
13 init_xmlhandlers = require "core.xmlhandlers"
14 require "core.rostermanager"
15 require "core.offlinemessage"
16 require "core.usermanager"
17 require "util.stanza"
18 require "util.jid"
19
20 -- Locals for faster access --
21 local t_insert = table.insert;
22 local t_concat = table.concat;
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
24 local m_random = math.random;
25 local format = string.format;
26 local st = stanza;
27 ------------------------------
28
29 sessions = {};
30 hosts = {
31 ["localhost"] = {
32 type = "local";
33 connected = true;
34 sessions = {};
35 };
36 ["getjabber.ath.cx"] = {
37 type = "local";
38 connected = true;
39 sessions = {};
40 };
41 }
42
43 local hosts, users = hosts, users;
44
45 --local ssl_ctx, msg = ssl.newcontext { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
46 -- certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
47 --
48 --if not ssl_ctx then error("Failed to initialise SSL/TLS support: "..tostring(msg)); end
49
50
51 local ssl_ctx = { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
52 certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
53
54
55 function connect_host(host)
56 hosts[host] = { type = "remote", sendbuffer = {} };
57 end
58
59 local function send_to(session, to, stanza)
60 local node, host, resource = jid.split(to);
61 if not hosts[host] then
62 -- s2s
63 elseif hosts[host].type == "local" then
64 print(" ...is to a local user")
65 local destuser = hosts[host].sessions[node];
66 if destuser and destuser.sessions then
67 if not destuser.sessions[resource] then
68 local best_session;
69 for resource, session in pairs(destuser.sessions) do
70 if not best_session then best_session = session;
71 elseif session.priority >= best_session.priority and session.priority >= 0 then
72 best_session = session;
73 end
74 end
75 if not best_session then
76 offlinemessage.new(node, host, stanza);
77 else
78 print("resource '"..resource.."' was not online, have chosen to send to '"..best_session.username.."@"..best_session.host.."/"..best_session.resource.."'");
79 resource = best_session.resource;
80 end
81 end
82 if destuser.sessions[resource] == session then
83 log("warn", "core", "Attempt to send stanza to self, dropping...");
84 else
85 print("...sending...", tostring(stanza));
86 --destuser.sessions[resource].conn.write(tostring(data));
87 print(" to conn ", destuser.sessions[resource].conn);
88 destuser.sessions[resource].conn.write(tostring(stanza));
89 print("...sent")
90 end
91 elseif stanza.name == "message" then
92 print(" ...will be stored offline");
93 offlinemessage.new(node, host, stanza);
94 elseif stanza.name == "iq" then
95 print(" ...is an iq");
96 session.send(st.reply(stanza)
97 :tag("error", { type = "cancel" })
98 :tag("service-unavailable", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" }));
99 end
100 print(" ...done routing");
101 end
102 end
103
104 function handler(conn, data, err)
105 local session = sessions[conn];
106
107 if not session then
108 sessions[conn] = { conn = conn, notopen = true, priority = 0 };
109 session = sessions[conn];
110
111 -- Logging functions --
112
113 local mainlog, log = log;
114 do
115 local conn_name = tostring(conn):match("%w+$");
116 log = function (type, area, message) mainlog(type, conn_name, message); end
117 end
118 local print = function (...) log("info", "core", t_concatall({...}, "\t")); end
119 session.log = log;
120
121 -- -- --
122
123 -- Send buffers --
124
125 local send = function (data) print("Sending...", tostring(data)); conn.write(tostring(data)); end;
126 session.send, session.send_to = send, send_to;
127
128 print("Client connected");
129
130 session.stanza_dispatch = init_stanza_dispatcher(session);
131 session.xml_handlers = init_xmlhandlers(session);
132 session.parser = lxp.new(session.xml_handlers, ":");
133
134 function session.disconnect(err)
135 if session.last_presence.attr.type ~= "unavailable" then
136 local pres = st.presence{ type = "unavailable" };
137 if err == "closed" then err = "connection closed"; end
138 pres:tag("status"):text("Disconnected: "..err);
139 session.stanza_dispatch(pres);
140 end
141 hosts[session.host].sessions[session.username] = nil;
142 session = nil;
143 print("Disconnected: "..err);
144 end
145 end
146 if data then
147 session.parser:parse(data);
148 end
149
150 --log("info", "core", "Client disconnected, connection closed");
151 end
152
153 function disconnect(conn, err)
154 sessions[conn].disconnect(err);
155 end
156
157 print("ssl_ctx:", type(ssl_ctx));
158
159 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 }) --]][][[]][];
160
161
162 local protected_handler = function (...) local success, ret = pcall(handler, ...); if not success then print("ERROR on "..tostring((select(1, ...)))..": "..ret); end end;
163 local protected_disconnect = function (...) local success, ret = pcall(disconnect, ...); if not success then print("ERROR on "..tostring((select(1, ...))).." disconnect: "..ret); end end;
164
165 print( server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5222, "*", 1, nil ) ) -- server.add will send a status message
166 print( server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5223, "*", 1, ssl_ctx ) ) -- server.add will send a status message
167
168 server.loop();

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