-- Prosody IM
--- Copyright (C) 2008-2009 Matthew Wild
--- Copyright (C) 2008-2009 Waqas Hussain
+-- 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 idna_to_ascii = require "util.encodings".idna.to_ascii;
local connlisteners_get = require "net.connlisteners".get;
+local initialize_filters = require "util.filters".initialize;
local wrapclient = require "net.server".wrapclient;
local modulemanager = require "core.modulemanager";
local st = require "stanza";
local adns, dns = require "net.adns", require "net.dns";
local config = require "core.configmanager";
local connect_timeout = config.get("*", "core", "s2s_timeout") or 60;
-local dns_timeout = config.get("*", "core", "dns_timeout") or 60;
+local dns_timeout = config.get("*", "core", "dns_timeout") or 15;
local max_dns_depth = config.get("*", "core", "dns_max_depth") or 3;
+dns.settimeout(dns_timeout);
+
incoming_s2s = {};
_G.prosody.incoming_s2s = incoming_s2s;
local incoming_s2s = incoming_s2s;
for i, data in ipairs(sendq) do
local reply = data[2];
local xmlns = reply.attr.xmlns;
- if not xmlns or xmlns == "jabber:client" or xmlns == "jabber:server" then
+ if not xmlns then
reply.attr.type = "error";
reply:tag("error", {type = "cancel"})
:tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up();
local host = hosts[from_host].s2sout[to_host];
if host then
-- We have a connection to this host already
- if host.type == "s2sout_unauthed" and (data.name ~= "db:verify" or not host.dialback_key) and ((not data.xmlns) or data.xmlns == "jabber:client" or data.xmlns == "jabber:server") then
+ if host.type == "s2sout_unauthed" and (data.name ~= "db:verify" or not host.dialback_key) then
(host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host);
-- Queue stanza until we are able to send it
open_sessions = open_sessions + 1;
local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$"));
session.log = log;
- session.sends2s = function (t) log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)")); w(conn, tostring(t)); end
+ local filter = initialize_filters(session);
+ session.sends2s = function (t)
+ log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)"));
+ if t.name then
+ t = filter("stanzas/out", t);
+ end
+ if t then
+ t = filter("bytes/out", tostring(t));
+ if t then
+ return w(conn, t);
+ end
+ end
+ end
incoming_s2s[session] = true;
add_task(connect_timeout, function ()
if session.conn ~= conn or
host_session.log = log;
end
+ initialize_filters(host_session);
+
if connect ~= false then
-- Kick the connection attempting machine into life
attempt_connection(host_session);
function attempt_connection(host_session, err)
local from_host, to_host = host_session.from_host, host_session.to_host;
- local connect_host, connect_port = idna_to_ascii(to_host), 5269;
+ local connect_host, connect_port = to_host and idna_to_ascii(to_host), 5269;
if not connect_host then
return false;
end
end, "_xmpp-server._tcp."..connect_host..".", "SRV");
- -- Set handler for DNS timeout
- add_task(dns_timeout, function ()
- if handle then
- adns.cancel(handle, true);
- end
- end);
-
- log("debug", "DNS lookup for %s sent, waiting for response before we can connect", to_host);
return true; -- Attempt in progress
elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV
host_session.srv_choice = host_session.srv_choice + 1;
end
end, connect_host, "A", "IN");
- -- Set handler for DNS timeout
- add_task(dns_timeout, function ()
- if handle then
- adns.cancel(handle, true);
- end
- end);
-
return true;
end
conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1 );
host_session.conn = conn;
+ local filter = initialize_filters(host_session);
+ local w, log = conn.write, host_session.log;
+ host_session.sends2s = function (t)
+ log("debug", "sending: %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?"));
+ if t.name then
+ t = filter("stanzas/out", t);
+ end
+ if t then
+ t = filter("bytes/out", tostring(t));
+ if t then
+ return w(conn, tostring(t));
+ end
+ end
+ end
+
-- Register this outgoing connection so that xmppserver_listener knows about it
-- otherwise it will assume it is a new incoming connection
cl.register_outgoing(conn, host_session);
- local w, log = conn.write, host_session.log;
- host_session.sends2s = function (t) log("debug", "sending: %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?")); w(conn, tostring(t)); end
-
host_session:open_stream(from_host, to_host);
log("debug", "Connection attempt in progress...");
session.streamid = uuid_gen();
(session.log or log)("debug", "incoming s2s received <stream:stream>");
- if session.to_host and not hosts[session.to_host] then
- -- Attempting to connect to a host we don't serve
- session:close({ condition = "host-unknown"; text = "This host does not serve "..session.to_host });
- return;
+ if session.to_host then
+ if not hosts[session.to_host] then
+ -- Attempting to connect to a host we don't serve
+ session:close({
+ condition = "host-unknown";
+ text = "This host does not serve "..session.to_host
+ });
+ return;
+ elseif hosts[session.to_host].disallow_s2s then
+ -- Attempting to connect to a host that disallows s2s
+ session:close({
+ condition = "policy-violation";
+ text = "Server-to-server communication is not allowed to this host";
+ });
+ return;
+ end
end
send("<?xml version='1.0'?>");
send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
local resting_session = { -- Resting, not dead
destroyed = true;
+ type = "s2s_destroyed";
open_stream = function (session)
session.log("debug", "Attempt to open stream on resting session");
end;
projects / prosody.git / blobdiff