require "luarocks.require" server = require "net.server" require "socket" require "ssl" require "lxp" function log(type, area, message) print(type, area, message); end require "core.stanza_dispatch" require "core.xmlhandlers" require "core.rostermanager" require "core.offlinemessage" require "core.modulemanager" require "core.usermanager" require "core.sessionmanager" require "core.stanza_router" 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; local init_xmlhandlers = xmlhandlers.init_xmlhandlers; ------------------------------ sessions = {}; hosts = { ["localhost"] = { type = "local"; connected = true; sessions = {}; }; ["getjabber.ath.cx"] = { type = "local"; connected = true; sessions = {}; }; } local hosts, users = hosts, users; 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 route_stanza(stanza) if not stanza.attr.to then -- Has no 'to' attribute, handle internally end local node, host, resource = jid.split(stanza.attr.to); if host and hosts[host] and hosts[host].type == "local" then -- Is a local host, handle internally else -- Is not for us or a local user, route accordingly end 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] = sessionmanager.new_session(conn); 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 --log = function () end end local print = function (...) log("info", "core", t_concatall({...}, "\t")); end session.log = log; print("Client connected"); session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end session.xml_handlers = init_xmlhandlers(session); session.parser = lxp.new(session.xml_handlers, ":"); function session.disconnect(err) if session.last_presence and 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 if session.username then hosts[session.host].sessions[session.username] = nil; end session = nil; print("Disconnected: "..err); collectgarbage("collect"); 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); sessions[conn] = nil; end modulemanager.loadall(); 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 (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; 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; server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5222, "*", 1, nil ) -- server.add will send a status message server.add( { listener = protected_handler, disconnect = protected_disconnect }, 5223, "*", 1, ssl_ctx ) -- server.add will send a status message server.loop();