+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
module.host = "*" -- Global module
local fire_event = require "core.eventmanager".fire_event;
local core_process_stanza = core_process_stanza;
local st = require "util.stanza";
-local log = require "util.logger".init("bosh");
-local stream_callbacks = { stream_tag = "http://jabber.org/protocol/httpbind|body" };
-local config = require "core.configmanager";
+local logger = require "util.logger";
+local log = logger.init("mod_bosh");
+
local xmlns_bosh = "http://jabber.org/protocol/httpbind"; -- (hard-coded into a literal in session.send)
+local stream_callbacks = { stream_tag = "http://jabber.org/protocol/httpbind\1body", default_ns = xmlns_bosh };
-local BOSH_DEFAULT_HOLD = tonumber(config.get("*", "core", "bosh_default_hold")) or 1;
-local BOSH_DEFAULT_INACTIVITY = tonumber(config.get("*", "core", "bosh_max_inactivity")) or 60;
-local BOSH_DEFAULT_POLLING = tonumber(config.get("*", "core", "bosh_max_polling")) or 5;
-local BOSH_DEFAULT_REQUESTS = tonumber(config.get("*", "core", "bosh_max_requests")) or 2;
-local BOSH_DEFAULT_MAXPAUSE = tonumber(config.get("*", "core", "bosh_max_pause")) or 300;
+local BOSH_DEFAULT_HOLD = tonumber(module:get_option("bosh_default_hold")) or 1;
+local BOSH_DEFAULT_INACTIVITY = tonumber(module:get_option("bosh_max_inactivity")) or 60;
+local BOSH_DEFAULT_POLLING = tonumber(module:get_option("bosh_max_polling")) or 5;
+local BOSH_DEFAULT_REQUESTS = tonumber(module:get_option("bosh_max_requests")) or 2;
+local BOSH_DEFAULT_MAXPAUSE = tonumber(module:get_option("bosh_max_pause")) or 300;
local default_headers = { ["Content-Type"] = "text/xml; charset=utf-8" };
+local session_close_reply = { headers = default_headers, body = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }), attr = {} };
local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
local os_time = os.time;
--log("debug", "Handling new request %s: %s\n----------", request.id, tostring(body));
request.notopen = true;
request.log = log;
- local parser = lxp.new(init_xmlhandlers(request, stream_callbacks), "|");
+ local parser = lxp.new(init_xmlhandlers(request, stream_callbacks), "\1");
parser:parse(body);
local function bosh_reset_stream(session) session.notopen = true; end
-local session_close_reply = { headers = default_headers, body = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }), attr = {} };
local function bosh_close_stream(session, reason)
(session.log or log)("info", "BOSH client disconnected");
session_close_reply.attr.condition = reason;
- local session_close_reply = tostring(session_close_reply);
for _, held_request in ipairs(session.requests) do
held_request:send(session_close_reply);
held_request:destroy();
if not hosts[attr.to] then
-- Unknown host
log("debug", "BOSH client tried to connect to unknown host: %s", tostring(attr.to));
- session_close_reply.attr.condition = "host-unknown";
- request:send{ headers = default_headers, body = tostring(session_close_reply) };
+ session_close_reply.body.attr.condition = "host-unknown";
+ request:send(session_close_reply);
request.notopen = nil
return;
end
-- New session
sid = new_uuid();
- local session = { type = "c2s_unauthed", conn = {}, sid = sid, rid = attr.rid, host = attr.to, bosh_version = attr.ver, bosh_wait = attr.wait, streamid = sid,
+ local session = { type = "c2s_unauthed", conn = {}, sid = sid, rid = tonumber(attr.rid), host = attr.to, bosh_version = attr.ver, bosh_wait = attr.wait, streamid = sid,
bosh_hold = BOSH_DEFAULT_HOLD, bosh_max_inactive = BOSH_DEFAULT_INACTIVITY,
- requests = { }, send_buffer = {}, reset_stream = bosh_reset_stream, close = bosh_close_stream, dispatch_stanza = core_process_stanza };
+ requests = { }, send_buffer = {}, reset_stream = bosh_reset_stream, close = bosh_close_stream,
+ dispatch_stanza = core_process_stanza, log = logger.init("bosh"..sid), secure = request.secure };
sessions[sid] = session;
+
log("info", "New BOSH session, assigned it sid '%s'", sid);
local r, send_buffer = session.requests, session.send_buffer;
local response = { headers = default_headers }
function session.send(s)
- log("debug", "Sending BOSH data: %s", tostring(s));
+ --log("debug", "Sending BOSH data: %s", tostring(s));
local oldest_request = r[1];
while oldest_request and oldest_request.destroyed do
t_remove(r, 1);
oldest_request = r[1];
end
if oldest_request then
- log("debug", "We have an open request, so using that to send with");
+ log("debug", "We have an open request, so sending on that");
response.body = t_concat{"<body xmlns='http://jabber.org/protocol/httpbind' sid='", sid, "' xmlns:stream = 'http://etherx.jabber.org/streams'>", tostring(s), "</body>" };
oldest_request:send(response);
--log("debug", "Sent");
return;
end
+ if session.rid then
+ local rid = tonumber(attr.rid);
+ local diff = rid - session.rid;
+ if diff > 1 then
+ session.log("warn", "rid too large (means a request was lost). Last rid: %d New rid: %s", session.rid, attr.rid);
+ elseif diff <= 0 then
+ -- Repeated, ignore
+ session.log("debug", "rid repeated (on request %s), ignoring: %d", request.id, session.rid);
+ request.notopen = nil;
+ t_insert(session.requests, request);
+ return;
+ end
+ session.rid = rid;
+ end
+
if attr.type == "terminate" then
-- Client wants to end this session
session:close();
if stanza.attr.xmlns == xmlns_bosh then
stanza.attr.xmlns = "jabber:client";
end
+ session.ip = request.handler.ip();
core_process_stanza(session, stanza);
end
end
+local dead_sessions = {};
function on_timer()
-- log("debug", "Checking for requests soon to timeout...");
-- Identify requests timing out within the next few seconds
end
now = now - 3;
+ local n_dead_sessions = 0;
for session, inactive_since in pairs(inactive_sessions) do
if session.bosh_max_inactive then
if now - inactive_since > session.bosh_max_inactive then
(session.log or log)("debug", "BOSH client inactive too long, destroying session at %d", now);
sessions[session.sid] = nil;
inactive_sessions[session] = nil;
- sm_destroy_session(session, "BOSH client silent for over "..session.bosh_max_inactive.." seconds");
+ n_dead_sessions = n_dead_sessions + 1;
+ dead_sessions[n_dead_sessions] = session;
end
else
inactive_sessions[session] = nil;
end
end
-end
-local ports = config.get(module.host, "core", "bosh_ports") or { 5280 };
-for _, options in ipairs(ports) do
- local port, base, ssl, interface = 5280, "http-bind", false, nil;
- if type(options) == "number" then
- port = options;
- elseif type(options) == "table" then
- port, base, ssl, interface = options.port or 5280, options.path or "http-bind", options.ssl or false, options.interface;
- elseif type(options) == "string" then
- base = options;
+ for i=1,n_dead_sessions do
+ local session = dead_sessions[i];
+ dead_sessions[i] = nil;
+ sm_destroy_session(session, "BOSH client silent for over "..session.bosh_max_inactive.." seconds");
end
- httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl }
end
+local ports = module:get_option("bosh_ports") or { 5280 };
+httpserver.new_from_config(ports, handle_request, { base = "http-bind" });
+
server.addtimer(on_timer);