local logger = require "util.logger";
local log = logger.init("mod_bosh");
+local xmlns_streams = "http://etherx.jabber.org/streams";
+local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
local xmlns_bosh = "http://jabber.org/protocol/httpbind"; -- (hard-coded into a literal in session.send)
-local stream_callbacks = { stream_ns = "http://jabber.org/protocol/httpbind", stream_tag = "body", default_ns = "jabber:client" };
+
+local stream_callbacks = {
+ stream_ns = xmlns_bosh, stream_tag = "body", default_ns = "jabber:client" };
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 consider_bosh_secure = module:get_option_boolean("consider_bosh_secure");
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 cross_domain = module:get_option("cross_domain_bosh");
if cross_domain then
end
end
+local trusted_proxies = module:get_option_set("trusted_proxies", {"127.0.0.1"})._items;
+
+local function get_ip_from_request(request)
+ local ip = request.handler:ip();
+ local forwarded_for = request.headers["x-forwarded-for"];
+ if forwarded_for then
+ forwarded_for = forwarded_for..", "..ip;
+ for forwarded_ip in forwarded_for:gmatch("[^%s,]+") do
+ if not trusted_proxies[forwarded_ip] then
+ ip = forwarded_ip;
+ end
+ end
+ end
+ return ip;
+end
+
local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
local os_time = os.time;
function handle_request(method, body, request)
if (not body) or request.method ~= "POST" then
if request.method == "OPTIONS" then
- return { headers = default_headers, body = "" };
+ local headers = {};
+ for k,v in pairs(default_headers) do headers[k] = v; end
+ headers["Content-Type"] = nil;
+ return { headers = headers, body = "" };
else
return "<html><body>You really don't look like a BOSH client to me... what do you want?</body></html>";
end
local function bosh_reset_stream(session) session.notopen = true; end
+local stream_xmlns_attr = { xmlns = "urn:ietf:params:xml:ns:xmpp-streams" };
+
local function bosh_close_stream(session, reason)
(session.log or log)("info", "BOSH client disconnected");
- session_close_reply.attr.condition = reason;
+
+ local close_reply = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate",
+ ["xmlns:streams"] = xmlns_streams });
+
+
+ if reason then
+ close_reply.attr.condition = "remote-stream-error";
+ if type(reason) == "string" then -- assume stream error
+ close_reply:tag("stream:error")
+ :tag(reason, {xmlns = xmlns_xmpp_streams});
+ elseif type(reason) == "table" then
+ if reason.condition then
+ close_reply:tag("stream:error")
+ :tag(reason.condition, stream_xmlns_attr):up();
+ if reason.text then
+ close_reply:tag("text", stream_xmlns_attr):text(reason.text):up();
+ end
+ if reason.extra then
+ close_reply:add_child(reason.extra);
+ end
+ elseif reason.name then -- a stanza
+ close_reply = reason;
+ end
+ end
+ log("info", "Disconnecting client, <stream:error> is: %s", tostring(close_reply));
+ end
+
+ local session_close_response = { headers = default_headers, body = tostring(close_reply) };
+
+ --FIXME: Quite sure we shouldn't reply to all requests with the error
for _, held_request in ipairs(session.requests) do
- held_request:send(session_close_reply);
+ held_request:send(session_close_response);
held_request:destroy();
end
sessions[session.sid] = nil;
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.body.attr.condition = "host-unknown";
- request:send(session_close_reply);
- request.notopen = nil
+ local close_reply = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate",
+ ["xmlns:streams"] = xmlns_streams, condition = "host-unknown" });
+ request:send(tostring(close_reply));
return;
end
-- New session
sid = new_uuid();
local session = {
- type = "c2s_unauthed", conn = {}, sid = sid, rid = tonumber(attr.rid)-1, host = attr.to,
+ 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,
- log = logger.init("bosh"..sid), secure = consider_bosh_secure or request.secure
+ log = logger.init("bosh"..sid), secure = consider_bosh_secure or request.secure,
+ ip = get_ip_from_request(request);
};
sessions[sid] = session;
+ session.log("debug", "BOSH session created for request from %s", session.ip);
log("info", "New BOSH session, assigned it sid '%s'", sid);
local r, send_buffer = session.requests, session.send_buffer;
local response = { headers = default_headers }
-- Repeated, ignore
session.log("debug", "rid repeated (on request %s), ignoring: %s (diff %d)", request.id, session.rid, diff);
request.notopen = nil;
+ request.ignore = true;
request.sid = sid;
t_insert(session.requests, request);
return;
end
function stream_callbacks.handlestanza(request, stanza)
+ if request.ignore then return; end
log("debug", "BOSH stanza received: %s\n", stanza:top_tag());
local session = sessions[request.sid];
if session then
if stanza.attr.xmlns == xmlns_bosh then
stanza.attr.xmlns = nil;
end
- session.ip = request.handler:ip();
core_process_stanza(session, stanza);
end
end
projects / prosody.git / blobdiff