main.lua

changeset 5
57e4eb3aeac0
child 6
7ad47ce20394
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.lua	Sun Aug 24 18:01:20 2008 +0100
@@ -0,0 +1,168 @@
+require "luarocks.require"
+
+server = require "server"
+require "socket"
+require "ssl"
+require "lxp"
+
+function log(type, area, message)
+	print(type, area, message);
+end
+
+require "core.stanza_dispatch"
+init_xmlhandlers = require "core.xmlhandlers"
+require "core.rostermanager"
+require "core.offlinemessage"
+require "core.usermanager"
+require "util.stanza"
+require "util.jid"
+
+-- Locals for faster access --
+local t_insert = table.insert;
+local t_concat = table.concat;
+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
+local m_random = math.random;
+local format = string.format;
+local st = stanza;
+------------------------------
+
+sessions = {};
+hosts = 	{ 
+			["localhost"] = 	{
+							type = "local";
+							connected = true;
+							sessions = {};
+						};
+			["getjabber.ath.cx"] = 	{
+							type = "local";
+							connected = true;
+							sessions = {};
+						};
+		}
+
+local hosts, users = hosts, users;
+
+--local ssl_ctx, msg = ssl.newcontext { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
+--    certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
+--        
+--if not ssl_ctx then error("Failed to initialise SSL/TLS support: "..tostring(msg)); end
+
+
+local ssl_ctx = { mode = "server", protocol = "sslv23", key = "/home/matthew/ssl_cert/server.key",
+    certificate = "/home/matthew/ssl_cert/server.crt", capath = "/etc/ssl/certs", verify = "none", }
+
+
+function connect_host(host)
+	hosts[host] = { type = "remote", sendbuffer = {} };
+end
+
+local function send_to(session, to, stanza)
+	local node, host, resource = jid.split(to);
+	if not hosts[host] then
+		-- s2s
+	elseif hosts[host].type == "local" then
+		print("   ...is to a local user")
+		local destuser = hosts[host].sessions[node];
+		if destuser and destuser.sessions then
+			if not destuser.sessions[resource] then
+				local best_session;
+				for resource, session in pairs(destuser.sessions) do
+					if not best_session then best_session = session;
+					elseif session.priority >= best_session.priority and session.priority >= 0 then
+						best_session = session;
+					end
+				end
+				if not best_session then
+					offlinemessage.new(node, host, stanza);
+				else
+					print("resource '"..resource.."' was not online, have chosen to send to '"..best_session.username.."@"..best_session.host.."/"..best_session.resource.."'");
+					resource = best_session.resource;
+				end
+			end
+			if destuser.sessions[resource] == session then
+				log("warn", "core", "Attempt to send stanza to self, dropping...");
+			else
+				print("...sending...", tostring(stanza));
+				--destuser.sessions[resource].conn.write(tostring(data));
+				print("   to conn ", destuser.sessions[resource].conn);
+				destuser.sessions[resource].conn.write(tostring(stanza));
+				print("...sent")
+			end
+		elseif stanza.name == "message" then
+			print("   ...will be stored offline");
+			offlinemessage.new(node, host, stanza);
+		elseif stanza.name == "iq" then
+			print("   ...is an iq");
+			session.send(st.reply(stanza)
+				:tag("error", { type = "cancel" })
+					:tag("service-unavailable", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" }));
+		end
+		print("   ...done routing");
+	end
+end
+
+function handler(conn, data, err)
+	local session = sessions[conn];
+	
+	if not session then
+		sessions[conn] = { conn = conn, notopen = true, priority = 0 };
+		session = sessions[conn];
+
+		-- Logging functions --
+
+		local mainlog, log = log;
+		do
+			local conn_name = tostring(conn):match("%w+$");
+			log = function (type, area, message) mainlog(type, conn_name, message); end
+		end
+		local print = function (...) log("info", "core", t_concatall({...}, "\t")); end
+		session.log = log;
+
+		--	--	--
+
+		-- Send buffers --
+
+		local send = function (data) print("Sending...", tostring(data)); conn.write(tostring(data)); end;
+		session.send, session.send_to = send, send_to;
+
+			print("Client connected");
+		
+			session.stanza_dispatch = init_stanza_dispatcher(session);
+			session.xml_handlers = init_xmlhandlers(session);
+			session.parser = lxp.new(session.xml_handlers, ":");
+			
+			function session.disconnect(err)
+				if session.last_presence.attr.type ~= "unavailable" then
+					local pres = st.presence{ type = "unavailable" };
+					if err == "closed" then err = "connection closed"; end
+					pres:tag("status"):text("Disconnected: "..err);
+					session.stanza_dispatch(pres);
+				end
+				hosts[session.host].sessions[session.username] = nil;
+				session = nil;
+				print("Disconnected: "..err);
+			end
+		end
+	if data then
+		session.parser:parse(data);
+	end
+	
+	--log("info", "core", "Client disconnected, connection closed");
+end
+
+function disconnect(conn, err)
+	sessions[conn].disconnect(err);
+end
+
+print("ssl_ctx:", type(ssl_ctx));
+
+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 }) --]][][[]][];
+
+
+local protected_handler = function (...) local success, ret = pcall(handler, ...); if not success then print("ERROR on "..tostring((select(1, ...)))..": "..ret); end end;
+local protected_disconnect = function (...) local success, ret = pcall(disconnect, ...); if not success then print("ERROR on "..tostring((select(1, ...))).." disconnect: "..ret); end end;
+
+print( server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5222, "*", 1, nil ) )    -- server.add will send a status message
+print( server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5223, "*", 1, ssl_ctx ) )    -- server.add will send a status message
+
+server.loop();

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