prosody
db27a4c18b6a

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Software / code / prosody

Changeset

4543:db27a4c18b6a

mod_c2s, sessionmanager, xmppclient_listener: Move all c2s network and stream logic into a new module, mod_c2s
author Matthew Wild <mwild1@gmail.com>
date Sun, 22 Jan 2012 23:57:13 +0000
parents 4542:50aca1e0bfbd
children 4544:316e2b09a562
files core/sessionmanager.lua net/xmppclient_listener.lua plugins/mod_c2s.lua
diffstat 3 files changed, 224 insertions(+), 228 deletions(-) [+]
line wrap: on
line diff
--- a/core/sessionmanager.lua	Sun Jan 22 23:55:48 2012 +0000
+++ b/core/sessionmanager.lua	Sun Jan 22 23:57:13 2012 +0000
@@ -6,11 +6,8 @@
 -- COPYING file in the source package for more information.
 --
 
-
-
 local tonumber, tostring, setmetatable = tonumber, tostring, setmetatable;
 local ipairs, pairs, print, next= ipairs, pairs, print, next;
-local format = string.format;
 
 local hosts = hosts;
 local full_sessions = full_sessions;
@@ -19,10 +16,8 @@
 local logger = require "util.logger";
 local log = logger.init("sessionmanager");
 local error = error;
-local uuid_generate = require "util.uuid".generate;
 local rm_load_roster = require "core.rostermanager".load_roster;
 local config_get = require "core.configmanager".get;
-local nameprep = require "util.encodings".stringprep.nameprep;
 local resourceprep = require "util.encodings".stringprep.resourceprep;
 local nodeprep = require "util.encodings".stringprep.nodeprep;
 
@@ -216,50 +211,6 @@
 	return true;
 end
 
-function streamopened(session, attr)
-	local send = session.send;
-	session.host = attr.to;
-	if not session.host then
-		session:close{ condition = "improper-addressing",
-			text = "A 'to' attribute is required on stream headers" };
-		return;
-	end
-	session.host = nameprep(session.host);
-	session.version = tonumber(attr.version) or 0;
-	session.streamid = uuid_generate();
-	(session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
-
-	if not hosts[session.host] 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'?>");
-	send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host));
-
-	(session.log or log)("debug", "Sent reply <stream:stream> to client");
-	session.notopen = nil;
-
-	-- If session.secure is *false* (not nil) then it means we /were/ encrypting
-	-- since we now have a new stream header, session is secured
-	if session.secure == false then
-		session.secure = true;
-	end
-
-	local features = st.stanza("stream:features");
-	hosts[session.host].events.fire_event("stream-features", { origin = session, features = features });
-	fire_event("stream-features", session, features);
-
-	send(features);
-
-end
-
-function streamclosed(session)
-	session.log("debug", "Received </stream:stream>");
-	session:close();
-end
-
 function send_to_available_resources(user, host, stanza)
 	local jid = user.."@"..host;
 	local count = 0;
--- a/net/xmppclient_listener.lua	Sun Jan 22 23:55:48 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,179 +0,0 @@
--- 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.
---
-
-
-
-local logger = require "logger";
-local log = logger.init("xmppclient_listener");
-local new_xmpp_stream = require "util.xmppstream".new;
-
-local connlisteners_register = require "net.connlisteners".register;
-
-local sessionmanager = require "core.sessionmanager";
-local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session;
-local sm_streamopened = sessionmanager.streamopened;
-local sm_streamclosed = sessionmanager.streamclosed;
-local st = require "util.stanza";
-local xpcall = xpcall;
-local tostring = tostring;
-local type = type;
-local traceback = debug.traceback;
-
-local config = require "core.configmanager";
-local opt_keepalives = config.get("*", "core", "tcp_keepalives");
-
-local stream_callbacks = { default_ns = "jabber:client",
-		streamopened = sm_streamopened, streamclosed = sm_streamclosed, handlestanza = core_process_stanza };
-
-local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
-
-function stream_callbacks.error(session, error, data)
-	if error == "no-stream" then
-		session.log("debug", "Invalid opening stream header");
-		session:close("invalid-namespace");
-	elseif error == "parse-error" then
-		(session.log or log)("debug", "Client XML parse error: %s", tostring(data));
-		session:close("not-well-formed");
-	elseif error == "stream-error" then
-		local condition, text = "undefined-condition";
-		for child in data:children() do
-			if child.attr.xmlns == xmlns_xmpp_streams then
-				if child.name ~= "text" then
-					condition = child.name;
-				else
-					text = child:get_text();
-				end
-				if condition ~= "undefined-condition" and text then
-					break;
-				end
-			end
-		end
-		text = condition .. (text and (" ("..text..")") or "");
-		session.log("info", "Session closed by remote with error: %s", text);
-		session:close(nil, text);
-	end
-end
-
-local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), traceback()); end
-function stream_callbacks.handlestanza(session, stanza)
-	stanza = session.filter("stanzas/in", stanza);
-	if stanza then
-		return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
-	end
-end
-
-local sessions = {};
-local xmppclient = { default_port = 5222, default_mode = "*a" };
-
--- These are session methods --
-
-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 = "" };
-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());
-		end
-		if reason then
-			if type(reason) == "string" then -- assume stream error
-				log("info", "Disconnecting client, <stream:error> is: %s", reason);
-				session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
-			elseif type(reason) == "table" then
-				if reason.condition then
-					local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
-					if reason.text then
-						stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
-					end
-					if reason.extra then
-						stanza:add_child(reason.extra);
-					end
-					log("info", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
-					session.send(stanza);
-				elseif reason.name then -- a stanza
-					log("info", "Disconnecting client, <stream:error> is: %s", tostring(reason));
-					session.send(reason);
-				end
-			end
-		end
-		session.send("</stream:stream>");
-		session.conn:close();
-		xmppclient.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed");
-	end
-end
-
-
--- End of session methods --
-
-function xmppclient.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;
-	end
-	
-	if opt_keepalives ~= nil 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);
-		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");
-		end
-	end
-	
-	local handlestanza = stream_callbacks.handlestanza;
-	function session.dispatch_stanza(session, stanza)
-		return handlestanza(session, stanza);
-	end
-end
-
-function xmppclient.onincoming(conn, data)
-	local session = sessions[conn];
-	if session then
-		session.data(data);
-	end
-end
-	
-function xmppclient.ondisconnect(conn, err)
-	local session = sessions[conn];
-	if session then
-		(session.log or log)("info", "Client disconnected: %s", err);
-		sm_destroy_session(session, err);
-		sessions[conn]  = nil;
-		session = nil;
-	end
-end
-
-function xmppclient.associate_session(conn, session)
-	sessions[conn] = session;
-end
-
-connlisteners_register("xmppclient", xmppclient);
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/mod_c2s.lua	Sun Jan 22 23:57:13 2012 +0000
@@ -0,0 +1,224 @@
+-- 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.
+--
+
+module:set_global();
+
+local new_xmpp_stream = require "util.xmppstream".new;
+local nameprep = require "util.encodings".stringprep.nameprep;
+local portmanager = require "core.portmanager";
+local sessionmanager = require "core.sessionmanager";
+local st = require "util.stanza";
+local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session;
+local uuid_generate = require "util.uuid".generate;
+
+local xpcall, tostring, type = xpcall, tostring, type;
+local format = string.format;
+local traceback = debug.traceback;
+
+local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
+
+local log = module._log;
+
+local opt_keepalives = module:get_option_boolean("tcp_keepalives", false);
+
+local sessions = module:shared("sessions");
+
+local stream_callbacks = { default_ns = "jabber:client", handlestanza = core_process_stanza };
+local listener = { default_port = 5222, default_mode = "*a" };
+
+--- 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;
+	session.host = attr.to;
+	if not session.host then
+		session:close{ condition = "improper-addressing",
+			text = "A 'to' attribute is required on stream headers" };
+		return;
+	end
+	session.host = nameprep(session.host);
+	session.version = tonumber(attr.version) or 0;
+	session.streamid = uuid_generate();
+	(session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
+
+	if not hosts[session.host] 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'?>");
+	send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0' xml:lang='en'>", session.streamid, session.host));
+
+	(session.log or log)("debug", "Sent reply <stream:stream> to client");
+	session.notopen = nil;
+
+	-- If session.secure is *false* (not nil) then it means we /were/ encrypting
+	-- since we now have a new stream header, session is secured
+	if session.secure == false then
+		session.secure = true;
+	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);
+end
+
+function stream_callbacks.streamclosed(session)
+	session.log("debug", "Received </stream:stream>");
+	session:close();
+end
+
+function stream_callbacks.error(session, error, data)
+	if error == "no-stream" then
+		session.log("debug", "Invalid opening stream header");
+		session:close("invalid-namespace");
+	elseif error == "parse-error" then
+		(session.log or log)("debug", "Client XML parse error: %s", tostring(data));
+		session:close("not-well-formed");
+	elseif error == "stream-error" then
+		local condition, text = "undefined-condition";
+		for child in data:children() do
+			if child.attr.xmlns == xmlns_xmpp_streams then
+				if child.name ~= "text" then
+					condition = child.name;
+				else
+					text = child:get_text();
+				end
+				if condition ~= "undefined-condition" and text then
+					break;
+				end
+			end
+		end
+		text = condition .. (text and (" ("..text..")") or "");
+		session.log("info", "Session closed by remote with error: %s", text);
+		session:close(nil, text);
+	end
+end
+
+local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), traceback()); end
+function stream_callbacks.handlestanza(session, stanza)
+	stanza = session.filter("stanzas/in", stanza);
+	if stanza then
+		return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
+	end
+end
+
+--- Session methods
+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());
+		end
+		if reason then
+			if type(reason) == "string" then -- assume stream error
+				log("info", "Disconnecting client, <stream:error> is: %s", reason);
+				session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
+			elseif type(reason) == "table" then
+				if reason.condition then
+					local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
+					if reason.text then
+						stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
+					end
+					if reason.extra then
+						stanza:add_child(reason.extra);
+					end
+					log("info", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
+					session.send(stanza);
+				elseif reason.name then -- a stanza
+					log("info", "Disconnecting client, <stream:error> is: %s", tostring(reason));
+					session.send(reason);
+				end
+			end
+		end
+		session.send("</stream:stream>");
+		session.conn:close();
+		listener.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed");
+	end
+end
+
+--- 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;
+	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);
+		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");
+		end
+	end
+
+	session.dispatch_stanza = stream_callbacks.handlestanza;
+end
+
+function listener.onincoming(conn, data)
+	local session = sessions[conn];
+	if session then
+		session.data(data);
+	end
+end
+
+function listener.ondisconnect(conn, err)
+	local session = sessions[conn];
+	if session then
+		(session.log or log)("info", "Client disconnected: %s", err);
+		sm_destroy_session(session, err);
+		sessions[conn]  = nil;
+		session = nil;
+	end
+end
+
+function listener.associate_session(conn, session)
+	sessions[conn] = session;
+end
+
+portmanager.register_service("c2s", {
+	listener = listener;
+	default_port = 5222;
+	encryption = "starttls";
+});
+
+portmanager.register_service("legacy_ssl", {
+	listener = listener;
+	encryption = "ssl";
+});
+
+