2 local logger = require "logger";
3 local lxp = require "lxp"
4 local init_xmlhandlers = require "core.xmlhandlers"
5 local sm_new_session = require "core.sessionmanager".new_session;
6 local s2s_new_incoming = require "core.s2smanager".new_incoming;
7 local s2s_streamopened = require "core.s2smanager".streamopened;
8 local s2s_streamclosed = require "core.s2smanager".streamclosed;
9 local s2s_destroy_session = require "core.s2smanager".destroy_session;
11 local stream_callbacks = { streamopened = s2s_streamopened, streamclosed = s2s_streamclosed };
13 local connlisteners_register = require "net.connlisteners".register;
15 local t_insert = table.insert;
16 local t_concat = table.concat;
17 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
18 local m_random = math.random;
19 local format = string.format;
20 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session");
24 local xmppserver = { default_port = 5269 };
26 -- These are session methods --
28 local function session_reset_stream(session)
30 local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|");
31 session.parser = parser;
33 session.notopen = true;
35 function session.data(conn, data)
42 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
43 local function session_close(session, reason)
44 local log = session.log or log;
47 if type(reason) == "string" then -- assume stream error
48 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason);
49 session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
50 elseif type(reason) == "table" then
51 if reason.condition then
52 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
54 stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
57 stanza:add_child(reason.extra);
59 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza));
60 session.sends2s(stanza);
61 elseif reason.name then -- a stanza
62 log("info", "Disconnecting %s->%s[%s], <stream:error> is: %s", session.from_host or "(unknown host)", session.to_host or "(unknown host)", session.type, tostring(reason));
63 session.sends2s(reason);
67 session.sends2s("</stream:stream>");
69 xmppserver.disconnect(session.conn, "stream error");
74 -- End of session methods --
76 function xmppserver.listener(conn, data)
77 local session = sessions[conn];
79 session = s2s_new_incoming(conn);
80 sessions[conn] = session;
82 -- Logging functions --
84 local mainlog, log = log;
86 local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$");
87 log = logger.init(conn_name);
89 local print = function (...) log("info", t_concatall({...}, "\t")); end
92 print("Incoming s2s connection");
94 session.reset_stream = session_reset_stream;
95 session.close = session_close;
97 session_reset_stream(session); -- Initialise, ready for use
99 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call,
100 -- this will avoid the useless indirection we have atm
101 -- (I'm on a mission, no time to fix now)
104 local function handleerr(err) print("Traceback:", err, debug.traceback()); end
105 session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end
108 session.data(conn, data);
112 function xmppserver.disconnect(conn)
113 local session = sessions[conn];
115 (session.log or log)("info", "s2s disconnected: %s->%s", tostring(session.from_host), tostring(session.to_host));
116 s2s_destroy_session(session);
117 sessions[conn] = nil;
119 collectgarbage("collect");
123 function xmppserver.register_outgoing(conn, session)
124 session.direction = "outgoing";
125 sessions[conn] = session;
127 session.reset_stream = session_reset_stream;
128 session_reset_stream(session); -- Initialise, ready for use
130 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call,
131 -- this will avoid the useless indirection we have atm
132 -- (I'm on a mission, no time to fix now)
133 session.stanza_dispatch = function (stanza) return core_process_stanza(session, stanza); end
136 connlisteners_register("xmppserver", xmppserver);
139 -- We need to perform some initialisation when a connection is created
140 -- We also need to perform that same initialisation at other points (SASL, TLS, ...)
142 -- ...and we need to handle data
143 -- ...and record all sessions associated with connections