-- 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 add_task = require "util.timer".add_task;
local new_xmpp_stream = require "util.xmppstream".new;
local nameprep = require "util.encodings".stringprep.nameprep;
-local portmanager = require "core.portmanager";
local sessionmanager = require "core.sessionmanager";
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 xpcall, tostring, type = xpcall, tostring, type;
-local format = string.format;
local traceback = debug.traceback;
local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
local log = module._log;
local c2s_timeout = module:get_option_number("c2s_timeout");
-local opt_keepalives = module:get_option_boolean("tcp_keepalives", false);
+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 listener = { default_port = 5222, default_mode = "*a" };
+local stream_callbacks = { default_ns = "jabber:client" };
+local listener = {};
--- 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] 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'?>");
- send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host));
+ 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;
+
+ local sock = session.conn:socket();
+ if sock.info then
+ 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)
session.log("debug", "Received </stream:stream>");
- session:close();
+ session:close(false);
end
function stream_callbacks.error(session, error, data)
if error == "no-stream" then
- session.log("debug", "Invalid opening stream header");
+ session.log("debug", "Invalid opening stream header (%s)", (data:gsub("^([^\1]+)\1", "{%1}")));
session:close("invalid-namespace");
elseif error == "parse-error" then
(session.log or log)("debug", "Client XML parse error: %s", tostring(data));
end
end
-local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), traceback()); 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
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
+ if reason then -- nil == no err, initiated by us, false == initiated by client
+ local stream_error = st.stanza("stream:error");
if type(reason) == "string" then -- assume stream error
- log("info", "Disconnecting client, <stream:error> is: %s", reason);
- session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
+ stream_error:tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' });
elseif type(reason) == "table" then
if reason.condition then
- local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
+ stream_error:tag(reason.condition, stream_xmlns_attr):up();
if reason.text then
- stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
+ stream_error:tag("text", stream_xmlns_attr):text(reason.text):up();
end
if reason.extra then
- stanza:add_child(reason.extra);
+ stream_error:add_child(reason.extra);
end
- log("info", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
- session.send(stanza);
elseif reason.name then -- a stanza
- log("info", "Disconnecting client, <stream:error> is: %s", tostring(reason));
- session.send(reason);
+ stream_error = reason;
end
end
+ stream_error = tostring(stream_error);
+ log("debug", "Disconnecting client, <stream:error> is: %s", stream_error);
+ session.send(stream_error);
end
+
session.send("</stream:stream>");
- session.conn:close();
- listener.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed");
+ function session.send() return false; end
+
+ local reason = (reason and (reason.name or reason.text or reason.condition)) or reason;
+ 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;
+ if reason == nil and not session.notopen and session.type == "c2s" then
+ -- Grace time to process data from authenticated cleanly-closed stream
+ add_task(stream_close_timeout, function ()
+ if not session.destroyed then
+ session.log("warn", "Failed to receive a stream close response, closing connection anyway...");
+ sm_destroy_session(session, reason);
+ conn:close();
+ end
+ end);
+ else
+ 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
+module:hook_global("user-deleted", function(event)
+ local username, host = event.username, event.host;
+ local user = hosts[host].sessions[username];
+ if user and user.sessions then
+ for jid, session in pairs(user.sessions) do
+ session:close{ condition = "not-authorized", text = "Account deleted" };
+ end
+ end
+end, 200);
+
--- 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();
+ if sock.info then
+ session.compressed = sock:info"compression";
+ elseif sock.compression then
+ 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
-
+
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);
+ (session.log or log)("info", "Client disconnected: %s", err or "connection closed");
sm_destroy_session(session, err);
+ session.conn = nil;
sessions[conn] = nil;
- session = 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
-module:add_item("net-provider", {
+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
+ session:close{ condition = "system-shutdown", text = reason };
+ end
+end, -100);
+
+
+
+module:provides("net", {
name = "c2s";
listener = listener;
default_port = 5222;
encryption = "starttls";
+ multiplex = {
+ pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:client%1.*>";
+ };
});
-module:add_item("net-provider", {
+module:provides("net", {
name = "legacy_ssl";
listener = listener;
encryption = "ssl";
projects / prosody.git / blobdiff