diff options
Diffstat (limited to 'plugins/mod_c2s.lua')
| -rw-r--r-- | plugins/mod_c2s.lua | 128 |
1 files changed, 86 insertions, 42 deletions
diff --git a/plugins/mod_c2s.lua b/plugins/mod_c2s.lua index 2848f92f..7f0d1b01 100644 --- a/plugins/mod_c2s.lua +++ b/plugins/mod_c2s.lua @@ -1,7 +1,7 @@ -- 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. -- @@ -23,20 +23,29 @@ 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 c2s_timeout = module:get_option_number("c2s_timeout", 300); 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", "amount"); + 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 stream_callbacks = { default_ns = "jabber:client" }; local listener = {}; +module:hook("stats-update", function () + local count = 0; + for _ in pairs(sessions) do + count = count + 1; + end + measure_connections(count); +end); + --- 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; @@ -57,15 +66,13 @@ function stream_callbacks.streamopened(session, attr) session.streamid = uuid_generate(); (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host); - if not hosts[session.host] or not hosts[session.host].users 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'?>"..st.stanza("stream:stream", { - xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams'; - id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' }):top_tag()); + session:open_stream(); (session.log or log)("debug", "Sent reply <stream:stream> to client"); session.notopen = nil; @@ -74,21 +81,27 @@ function stream_callbacks.streamopened(session, attr) -- since we now have a new stream header, session is secured if session.secure == false then session.secure = true; + session.encrypted = true; - -- Check if TLS compression is used local sock = session.conn:socket(); if sock.info then - session.compressed = sock:info"compression"; - elseif sock.compression then - session.compressed = sock:compression(); --COMPAT mw/luasec-hg + 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 stream features to offer"); + session:close{ condition = "undefined-condition", text = "No stream features to proceed with" }; + end end function stream_callbacks.streamclosed(session) @@ -134,8 +147,7 @@ local function session_close(session, reason) 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 -- nil == no err, initiated by us, false == initiated by client local stream_error = st.stanza("stream:error"); @@ -158,31 +170,31 @@ local function session_close(session, reason) log("debug", "Disconnecting client, <stream:error> is: %s", stream_error); session.send(stream_error); end - + session.send("</stream:stream>"); function session.send() return false; end - - local reason = (reason and (reason.name or reason.text or reason.condition)) or reason; - session.log("info", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed"); + + local reason_text = (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 or "<unknown>", reason_text 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 + if reason_text == 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); + sm_destroy_session(session, reason_text); conn:close(); end end); else - sm_destroy_session(session, reason); + sm_destroy_session(session, reason_text); conn:close(); end else - local reason = (reason and (reason.name or reason.text or reason.condition)) or reason; - sm_destroy_session(session, reason); + local reason_text = (reason and (reason.name or reason.text or reason.condition)) or reason; + sm_destroy_session(session, reason_text); end end @@ -190,22 +202,35 @@ 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 + for _, session in pairs(user.sessions) do session:close{ condition = "not-authorized", text = "Account deleted" }; end end end, 200); +module:hook_global("user-password-changed", function(event) + local username, host, resource = event.username, event.host, event.resource; + local user = hosts[host].sessions[username]; + if user and user.sessions then + for r, session in pairs(user.sessions) do + if r ~= resource then + session:close{ condition = "reset", text = "Password changed" }; + end + end + end +end, 200); + --- Port listener function listener.onconnect(conn) 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(); @@ -215,34 +240,37 @@ function listener.onconnect(conn) 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) - data = filter("bytes/in", data); + -- Parse the data, which will store stanzas in session.pending_stanzas 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"); + data = filter("bytes/in", data); + if data then + local ok, err = stream:feed(data); + 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 @@ -271,14 +299,30 @@ function listener.ondisconnect(conn, err) 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) + local session = event.session; + if not session.notopen then + return event.session.send(' '); + end +end + function listener.associate_session(conn, session) sessions[conn] = session; end -function listener.ondetach(conn) - sessions[conn] = nil; +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 |