local sha256_hash = require "util.hashes".sha256;
-local dialback_secret = uuid_gen();
-
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 function compare_srv_priorities(a,b) return a.priority < b.priority or a.weight < b.weight; end
-local function bounce_sendq(session)
+local function bounce_sendq(session, reason)
local sendq = session.sendq;
if sendq then
session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host));
reply.attr.type = "error";
reply:tag("error", {type = "cancel"})
:tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up();
+ if reason then
+ reply:tag("text", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):text("Connection failed: "..reason):up();
+ end
core_process_stanza(dummy, reply);
end
sendq[i] = nil;
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", tostring(t)); w(tostring(t)); end
+ session.sends2s = function (t) log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)")); w(conn, tostring(t)); end
incoming_s2s[session] = true;
add_task(connect_timeout, function ()
if session.conn ~= conn or
return; -- Ok, we're connect[ed|ing]
end
-- Not connected, need to close session and clean up
- (session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity",
+ (session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity",
session.from_host or "(unknown)", session.to_host or "(unknown)");
session:close("connection-timeout");
end);
return session;
end
-function new_outgoing(from_host, to_host)
- local host_session = { to_host = to_host, from_host = from_host, host = from_host,
- notopen = true, type = "s2sout_unauthed", direction = "outgoing" };
+function new_outgoing(from_host, to_host, connect)
+ local host_session = { to_host = to_host, from_host = from_host, host = from_host,
+ notopen = true, type = "s2sout_unauthed", direction = "outgoing",
+ open_stream = session_open_stream };
hosts[from_host].s2sout[to_host] = host_session;
host_session.log = log;
end
- -- Kick the connection attempting machine
- attempt_connection(host_session);
+ if connect ~= false then
+ -- Kick the connection attempting machine into life
+ attempt_connection(host_session);
+ end
- if not host_session.sends2s then
+ if not host_session.sends2s then
-- A sends2s which buffers data (until the stream is opened)
-- note that data in this buffer will be sent before the stream is authed
-- and will not be ack'd in any way, successful or otherwise
if not ok then
if not attempt_connection(host_session, err) then
-- No more attempts will be made
- destroy_session(host_session);
+ destroy_session(host_session, err);
end
end
end, "_xmpp-server._tcp."..connect_host..".", "SRV");
log("debug", "DNS lookup failed to get a response for %s", connect_host);
if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can
log("debug", "No other records to try for %s - destroying", host_session.to_host);
- destroy_session(host_session); -- End of the line, we can't
+ destroy_session(host_session, "DNS resolution failed"); -- End of the line, we can't
end
end
end, connect_host, "A", "IN");
adns.cancel(handle, true);
end
end);
-
+
return true;
end
cl.register_outgoing(conn, host_session);
local w, log = conn.write, host_session.log;
- host_session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end
+ 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();
- conn.write(format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0' xml:lang='en'>]], from_host, to_host));
log("debug", "Connection attempt in progress...");
add_task(connect_timeout, function ()
if host_session.conn ~= conn or
return; -- Ok, we're connect[ed|ing]
end
-- Not connected, need to close session and clean up
- (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity",
+ (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity",
host_session.from_host or "(unknown)", host_session.to_host or "(unknown)");
host_session:close("connection-timeout");
end);
return true;
end
+function session_open_stream(session, from, to)
+ session.sends2s(st.stanza("stream:stream", {
+ xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
+ ["xmlns:stream"]='http://etherx.jabber.org/streams',
+ from=from, to=to, version='1.0', ["xml:lang"]='en'}):top_tag());
+end
+
function streamopened(session, attr)
local send = session.sends2s;
end
if session.version >= 1.0 and not (attr.to and attr.from) then
-
(session.log or log)("warn", "Remote of stream "..(session.from_host or "(unknown)").."->"..(session.to_host or "(unknown)")
.." failed to specify to (%s) and/or from (%s) hostname as per RFC", tostring(attr.to), tostring(attr.from));
end
session.streamid = uuid_gen();
(session.log or log)("debug", "incoming s2s received <stream:stream>");
- send("<?xml version='1.0'?>");
- send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
- ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, version=(session.version > 0 and "1.0" or nil) }):top_tag());
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;
end
+ send("<?xml version='1.0'?>");
+ send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
+ ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, to=session.from_host, version=(session.version > 0 and "1.0" or nil) }):top_tag());
if session.version >= 1.0 then
local features = st.stanza("stream:features");
-
+
if session.to_host then
hosts[session.to_host].events.fire_event("s2s-stream-features", { session = session, features = features });
else
-- Send unauthed buffer
-- (stanzas which are fine to send before dialback)
- -- Note that this is *not* the stanza queue (which
+ -- Note that this is *not* the stanza queue (which
-- we can only send if auth succeeds) :)
local send_buffer = session.send_buffer;
if send_buffer and #send_buffer > 0 then
end
end
end
-
session.notopen = nil;
end
end
function generate_dialback(id, to, from)
- return sha256_hash(id..to..from..dialback_secret, true);
+ return sha256_hash(id..to..from..hosts[from].dialback_secret, true);
end
function verify_dialback(id, to, from, key)
end
end
-function destroy_session(session)
+function destroy_session(session, reason)
(session.log or log)("info", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host));
if session.direction == "outgoing" then
hosts[session.from_host].s2sout[session.to_host] = nil;
- bounce_sendq(session);
+ bounce_sendq(session, reason);
elseif session.direction == "incoming" then
incoming_s2s[session] = nil;
end
projects / prosody.git / blobdiff