-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local st = require "util.stanza";
local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session;
local uuid_generate = require "util.uuid".generate;
+local runner = require "util.async".runner;
local xpcall, tostring, type = xpcall, tostring, type;
-local traceback = debug.traceback;
+local t_insert, t_remove = table.insert, table.remove;
local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
local stream_close_timeout = module:get_option_number("c2s_close_timeout", 5);
local opt_keepalives = module:get_option_boolean("c2s_tcp_keepalives", module:get_option_boolean("tcp_keepalives", true));
+local measure_connections = module:measure("connections", "counter");
+
local sessions = module:shared("sessions");
local core_process_stanza = prosody.core_process_stanza;
local hosts = prosody.hosts;
-local stream_callbacks = { default_ns = "jabber:client", handlestanza = core_process_stanza };
+local stream_callbacks = { default_ns = "jabber:client" };
local listener = {};
+local runner_callbacks = {};
+
+do
+ -- Connection counter resets to 0 on load and reload
+ -- Bump it up to current value
+ local count = 0;
+ for _ in pairs(sessions) do
+ count = count + 1;
+ end
+ measure_connections(count);
+end
--- Stream events handlers
local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
-local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" };
function stream_callbacks.streamopened(session, attr)
local send = session.send;
session.streamid = uuid_generate();
(session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
- if not hosts[session.host] or not hosts[session.host].users then
+ if not hosts[session.host] or not hosts[session.host].modules.c2s then
-- We don't serve this host...
session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
return;
end
- send("<?xml version='1.0'?>"..st.stanza("stream:stream", {
- xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams';
- id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' }):top_tag());
+ session:open_stream();
(session.log or log)("debug", "Sent reply <stream:stream> to client");
session.notopen = nil;
-- since we now have a new stream header, session is secured
if session.secure == false then
session.secure = true;
+ session.encrypted = true;
- -- Check if TLS compression is used
local sock = session.conn:socket();
if sock.info then
- session.compressed = sock:info"compression";
- elseif sock.compression then
- session.compressed = sock:compression(); --COMPAT mw/luasec-hg
+ local info = sock:info();
+ (session.log or log)("info", "Stream encrypted (%s with %s)", info.protocol, info.cipher);
+ session.compressed = info.compression;
+ else
+ (session.log or log)("info", "Stream encrypted");
+ session.compressed = sock.compression and sock:compression(); --COMPAT mw/luasec-hg
end
end
local features = st.stanza("stream:features");
hosts[session.host].events.fire_event("stream-features", { origin = session, features = features });
- module:fire_event("stream-features", session, features);
-
- send(features);
+ if features.tags[1] or session.full_jid then
+ send(features);
+ else
+ (session.log or log)("warn", "No features to offer");
+ session:close{ condition = "undefined-condition", text = "No features to proceed with" };
+ end
end
function stream_callbacks.streamclosed(session)
end
end
-local function handleerr(err) log("error", "Traceback[c2s]: %s", traceback(tostring(err), 2)); end
function stream_callbacks.handlestanza(session, stanza)
stanza = session.filter("stanzas/in", stanza);
- if stanza then
- return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
- end
+ session.thread:run(stanza);
end
--- Session methods
local log = session.log or log;
if session.conn then
if session.notopen then
- session.send("<?xml version='1.0'?>");
- session.send(st.stanza("stream:stream", default_stream_attr):top_tag());
+ session:open_stream();
end
if reason then -- nil == no err, initiated by us, false == initiated by client
local stream_error = st.stanza("stream:error");
log("debug", "Disconnecting client, <stream:error> is: %s", stream_error);
session.send(stream_error);
end
-
+
session.send("</stream:stream>");
function session.send() return false; end
-
+
local reason = (reason and (reason.name or reason.text or reason.condition)) or reason;
- session.log("info", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed");
+ session.log("debug", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed");
-- Authenticated incoming stream may still be sending us stanzas, so wait for </stream:stream> from remote
local conn = session.conn;
sm_destroy_session(session, reason);
conn:close();
end
+ else
+ local reason = (reason and (reason.name or reason.text or reason.condition)) or reason;
+ sm_destroy_session(session, reason);
end
end
end
end, 200);
+function runner_callbacks:ready()
+ self.data.conn:resume();
+end
+
+function runner_callbacks:waiting()
+ self.data.conn:pause();
+end
+
+function runner_callbacks:error(err)
+ (self.data.log or log)("error", "Traceback[c2s]: %s", err);
+end
+
--- Port listener
function listener.onconnect(conn)
+ measure_connections(1);
local session = sm_new_session(conn);
sessions[conn] = session;
-
+
session.log("info", "Client connected");
-
+
-- Client is using legacy SSL (otherwise mod_tls sets this flag)
if conn:ssl() then
session.secure = true;
+ session.encrypted = true;
-- Check if TLS compression is used
local sock = conn:socket();
session.compressed = sock:compression(); --COMPAT mw/luasec-hg
end
end
-
+
if opt_keepalives then
conn:setoption("keepalive", opt_keepalives);
end
-
+
session.close = session_close;
-
+
local stream = new_xmpp_stream(session, stream_callbacks);
session.stream = stream;
session.notopen = true;
-
+
function session.reset_stream()
session.notopen = true;
session.stream:reset();
end
-
+
+ session.thread = runner(function (stanza)
+ core_process_stanza(session, stanza);
+ end, runner_callbacks, session);
+
local filter = session.filter;
function session.data(data)
+ -- Parse the data, which will store stanzas in session.pending_stanzas
+ if data then
data = filter("bytes/in", data);
if data then
local ok, err = stream:feed(data);
- if ok then return; end
- log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
- session:close("not-well-formed");
+ if not ok then
+ log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
+ session:close("not-well-formed");
+ end
+ end
end
end
-
if c2s_timeout then
add_task(c2s_timeout, function ()
if session.type == "c2s_unauthed" then
end
function listener.ondisconnect(conn, err)
+ measure_connections(-1);
local session = sessions[conn];
if session then
(session.log or log)("info", "Client disconnected: %s", err or "connection closed");
sm_destroy_session(session, err);
+ session.conn = nil;
sessions[conn] = nil;
end
end
+function listener.onreadtimeout(conn)
+ local session = sessions[conn];
+ if session then
+ return (hosts[session.host] or prosody).events.fire_event("c2s-read-timeout", { session = session });
+ end
+end
+
+local function keepalive(event)
+ return event.session.send(' ');
+end
+
function listener.associate_session(conn, session)
sessions[conn] = session;
end
-function listener.ondetach(conn)
- sessions[conn] = nil;
+function module.add_host(module)
+ module:hook("c2s-read-timeout", keepalive, -1);
end
+module:hook("c2s-read-timeout", keepalive, -1);
+
module:hook("server-stopping", function(event)
local reason = event.reason;
for _, session in pairs(sessions) do
projects / prosody.git / blobdiff