X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=core%2Fstanza_router.lua;h=9533123e6eaa8b21f82bf30a993b6cf81ae9911d;hb=61fbebe4017d142510fbcfce61714ecb48b99503;hp=6c117c252fc648ba0f80aa2a657e505cc76aa060;hpb=448eb9c7461059b60fac4d09ae1332c580279b8a;p=prosody.git

diff --git a/core/stanza_router.lua b/core/stanza_router.lua
index 6c117c25..9533123e 100644
--- a/core/stanza_router.lua
+++ b/core/stanza_router.lua
@@ -1,9 +1,23 @@
+-- Prosody IM v0.2
+-- Copyright (C) 2008 Matthew Wild
+-- Copyright (C) 2008 Waqas Hussain
+-- 
+-- This program is free software; you can redistribute it and/or
+-- modify it under the terms of the GNU General Public License
+-- as published by the Free Software Foundation; either version 2
+-- of the License, or (at your option) any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+--
 
--- The code in this file should be self-explanatory, though the logic is horrible
--- for more info on that, see doc/stanza_routing.txt, which attempts to condense
--- the rules from the RFCs (mainly 3921)
 
-require "core.servermanager"
 
 local log = require "util.logger".init("stanzarouter")
 
@@ -21,6 +35,10 @@ local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
 local modules_handle_stanza = require "core.modulemanager".handle_stanza;
 local component_handle_stanza = require "core.componentmanager".handle_stanza;
 
+local handle_outbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
+local handle_inbound_presence_subscriptions_and_probes = require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
+local handle_normal_presence = require "core.presencemanager".handle_normal_presence;
+
 local format = string.format;
 local tostring = tostring;
 local t_concat = table.concat;
@@ -29,10 +47,16 @@ local tonumber = tonumber;
 local s_find = string.find;
 
 local jid_split = require "util.jid".split;
+local jid_prepped_split = require "util.jid".prepped_split;
 local print = print;
+local function checked_error_reply(origin, stanza)
+	if (stanza.attr.xmlns == "jabber:client" or stanza.attr.xmlns == "jabber:server") and stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
+		origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
+	end
+end
 
 function core_process_stanza(origin, stanza)
-	log("debug", "Received["..origin.type.."]: "..tostring(st.reply(st.reply(stanza))))
+	(origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag())
 
 	if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end -- FIXME Hack. This should be removed when we fix namespace handling.
 	-- TODO verify validity of stanza (as well as JID validity)
@@ -50,47 +74,69 @@ function core_process_stanza(origin, stanza)
 		error("Client MUST bind resource after auth");
 	end
 
-	-- TODO also, stazas should be returned to their original state before the function ends
+	-- TODO also, stanzas should be returned to their original state before the function ends
 	if origin.type == "c2s" then
 		stanza.attr.from = origin.full_jid;
 	end
-	local to = stanza.attr.to;
-	local node, host, resource = jid_split(to);
-	local to_bare = node and (node.."@"..host) or host; -- bare JID
+	local to, xmlns = stanza.attr.to, stanza.attr.xmlns;
 	local from = stanza.attr.from;
-	local from_node, from_host, from_resource = jid_split(from);
-	local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
-
-	if origin.type == "s2sin" then
-		if origin.from_host ~= from_host then -- remote server trying to impersonate some other server?
-			log("warn", "Received a stanza claiming to be from %s, over a conn authed for %s!", from, origin.from_host);
-			return; -- FIXME what should we do here? does this work with subdomains?
+	local node, host, resource;
+	local from_node, from_host, from_resource;
+	local to_bare, from_bare;
+	if to then
+		node, host, resource = jid_prepped_split(to);
+		if not host then
+			error("Invalid to JID");
 		end
+		to_bare = node and (node.."@"..host) or host; -- bare JID
+		if resource then to = to_bare.."/"..resource; else to = to_bare; end
+		stanza.attr.to = to;
 	end
+	if from then
+		from_node, from_host, from_resource = jid_prepped_split(from);
+		if not from_host then
+			error("Invalid from JID");
+		end
+		from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
+		if from_resource then from = from_bare.."/"..from_resource; else from = from_bare; end
+		stanza.attr.from = from;
+	end
+
 	--[[if to and not(hosts[to]) and not(hosts[to_bare]) and (hosts[host] and hosts[host].type ~= "local") then -- not for us?
 		log("warn", "stanza recieved for a non-local server");
 		return; -- FIXME what should we do here?
 	end]] -- FIXME
 
 	-- FIXME do stanzas not of jabber:client get handled by components?
-	if origin.type == "s2sin" or origin.type == "c2s" then
+	if (origin.type == "s2sin" or origin.type == "c2s") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then			
+		if origin.type == "s2sin" and not origin.dummy then
+			local host_status = origin.hosts[from_host];
+			if not host_status or not host_status.authed then -- remote server trying to impersonate some other server?
+				log("warn", "Received a stanza claiming to be from %s, over a conn authed for %s!", from_host, origin.from_host);
+				return; -- FIXME what should we do here? does this work with subdomains?
+			end
+		end
 		if not to then
 			core_handle_stanza(origin, stanza);
 		elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
 			core_handle_stanza(origin, stanza);
 		elseif stanza.attr.xmlns and stanza.attr.xmlns ~= "jabber:client" and stanza.attr.xmlns ~= "jabber:server" then
-			modules_handle_stanza(origin, stanza);
-		elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
-			component_handle_stanza(origin, stanza);
+			modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
 		elseif hosts[to] and hosts[to].type == "component" then -- hack to allow components to handle node@server/resource and server/resource
 			component_handle_stanza(origin, stanza);
+		elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
+			component_handle_stanza(origin, stanza);
 		elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
 			component_handle_stanza(origin, stanza);
 		elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
-			handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
-		elseif stanza.name == "iq" and not resource then -- directed at bare JID
+			handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
+		elseif origin.type ~= "c2s" and stanza.name == "iq" and not resource then -- directed at bare JID
 			core_handle_stanza(origin, stanza);
 		else
+			if origin.type == "c2s" and stanza.name == "presence" and to ~= nil and not(origin.roster[to_bare] and (origin.roster[to_bare].subscription == "both" or origin.roster[to_bare].subscription == "from")) then
+				origin.directed = origin.directed or {};
+				t_insert(origin.directed, to); -- FIXME does it make more sense to add to_bare rather than to?
+			end
 			core_route_stanza(origin, stanza);
 		end
 	else
@@ -102,196 +148,28 @@ end
 -- that is, they are handled by this server
 function core_handle_stanza(origin, stanza)
 	-- Handlers
-	if modules_handle_stanza(origin, stanza) then return; end
-	if origin.type == "c2s" or origin.type == "c2s_unauthed" then
-		local session = origin;
-
-		if stanza.name == "presence" and origin.roster then
-			if stanza.attr.type == nil or stanza.attr.type == "unavailable" then
-				for jid in pairs(origin.roster) do -- broadcast to all interested contacts
-					local subscription = origin.roster[jid].subscription;
-					if subscription == "both" or subscription == "from" then
-						stanza.attr.to = jid;
-						core_route_stanza(origin, stanza);
-					end
-				end
-				local node, host = jid_split(stanza.attr.from);
-				for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources
-					if res ~= origin and res.full_jid then -- to resource. FIXME is res.full_jid the correct check? Maybe it should be res.presence
-						stanza.attr.to = res.full_jid;
-						core_route_stanza(origin, stanza);
-					end
-				end
-				if stanza.attr.type == nil and not origin.presence then -- initial presence
-					local probe = st.presence({from = origin.full_jid, type = "probe"});
-					for jid in pairs(origin.roster) do -- probe all contacts we are subscribed to
-						local subscription = origin.roster[jid].subscription;
-						if subscription == "both" or subscription == "to" then
-							probe.attr.to = jid;
-							core_route_stanza(origin, probe);
-						end
-					end
-					for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast from all available resources
-						if res ~= origin and res.presence then
-							res.presence.attr.to = origin.full_jid;
-							core_route_stanza(res, res.presence);
-							res.presence.attr.to = nil;
-						end
-					end
-					if origin.roster.pending then -- resend incoming subscription requests
-						for jid in pairs(origin.roster.pending) do
-							origin.send(st.presence({type="subscribe", from=jid})); -- TODO add to attribute? Use original?
-						end
-					end
-					local request = st.presence({type="subscribe", from=origin.username.."@"..origin.host});
-					for jid, item in pairs(origin.roster) do -- resend outgoing subscription requests
-						if item.ask then
-							request.attr.to = jid;
-							core_route_stanza(origin, request);
-						end
-					end
-					for _, msg in ipairs(offlinemanager.load(node, host) or {}) do
-						origin.send(msg); -- FIXME do we need to modify to/from in any way?
-					end
-					offlinemanager.deleteAll(node, host);
-				end
-				origin.priority = 0;
-				if stanza.attr.type == "unavailable" then
-					origin.presence = nil;
+	if modules_handle_stanza(select(2, jid_split(stanza.attr.to)) or origin.host, origin, stanza) then return; end
+	if origin.type == "c2s" or origin.type == "s2sin" then
+		if origin.type == "c2s" then
+			if stanza.name == "presence" and origin.roster then
+				if stanza.attr.type == nil or stanza.attr.type == "unavailable" then
+					handle_normal_presence(origin, stanza, core_route_stanza);
 				else
-					origin.presence = stanza;
-					local priority = stanza:child_with_name("priority");
-					if priority and #priority > 0 then
-						priority = t_concat(priority);
-						if s_find(priority, "^[+-]?[0-9]+$") then
-							priority = tonumber(priority);
-							if priority < -128 then priority = -128 end
-							if priority > 127 then priority = 127 end
-							origin.priority = priority;
-						end
-					end
+					log("warn", "Unhandled c2s presence: %s", tostring(stanza));
+					checked_error_reply(origin, stanza);
 				end
-				stanza.attr.to = nil; -- reset it
 			else
-				log("warn", "Unhandled c2s presence: %s", tostring(stanza));
-				origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
-			end
-		else
-			log("warn", "Unhandled c2s stanza: %s", tostring(stanza));
-			origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
-		end -- TODO handle other stanzas
-	else
-		log("warn", "Unhandled origin: %s", origin.type);
-		-- s2s stanzas can get here
-		(origin.sends2s or origin.send)(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME correct error?
-	end
-end
-
-function send_presence_of_available_resources(user, host, jid, recipient_session)
-	local h = hosts[host];
-	local count = 0;
-	if h and h.type == "local" then
-		local u = h.sessions[user];
-		if u then
-			for k, session in pairs(u.sessions) do
-				local pres = session.presence;
-				if pres then
-					pres.attr.to = jid;
-					pres.attr.from = session.full_jid;
-					recipient_session.send(pres);
-					pres.attr.to = nil;
-					pres.attr.from = nil;
-					count = count + 1;
-				end
+				log("warn", "Unhandled c2s stanza: %s", tostring(stanza));
+				checked_error_reply(origin, stanza);
 			end
+		else -- s2s stanzas
+			log("warn", "Unhandled s2s stanza: %s", tostring(stanza));
+			checked_error_reply(origin, stanza);
 		end
+	else
+		log("warn", "Unhandled %s stanza: %s", origin.type, tostring(stanza));
+		checked_error_reply(origin, stanza);
 	end
-	return count;
-end
-
-function handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare)
-	local node, host = jid_split(from_bare);
-	local st_from, st_to = stanza.attr.from, stanza.attr.to;
-	stanza.attr.from, stanza.attr.to = from_bare, to_bare;
-	if stanza.attr.type == "subscribe" then
-		log("debug", "outbound subscribe from "..from_bare.." for "..to_bare);
-		-- 1. route stanza
-		-- 2. roster push (subscription = none, ask = subscribe)
-		if rostermanager.set_contact_pending_out(node, host, to_bare) then
-			rostermanager.roster_push(node, host, to_bare);
-		end -- else file error
-		core_route_stanza(origin, stanza);
-	elseif stanza.attr.type == "unsubscribe" then
-		log("debug", "outbound unsubscribe from "..from_bare.." for "..to_bare);
-		-- 1. route stanza
-		-- 2. roster push (subscription = none or from)
-		if rostermanager.unsubscribe(node, host, to_bare) then
-			rostermanager.roster_push(node, host, to_bare); -- FIXME do roster push when roster has in fact not changed?
-		end -- else file error
-		core_route_stanza(origin, stanza);
-	elseif stanza.attr.type == "subscribed" then
-		log("debug", "outbound subscribed from "..from_bare.." for "..to_bare);
-		-- 1. route stanza
-		-- 2. roster_push ()
-		-- 3. send_presence_of_available_resources
-		if rostermanager.subscribed(node, host, to_bare) then
-			rostermanager.roster_push(node, host, to_bare);
-			core_route_stanza(origin, stanza);
-			send_presence_of_available_resources(node, host, to_bare, origin);
-		end
-	elseif stanza.attr.type == "unsubscribed" then
-		log("debug", "outbound unsubscribed from "..from_bare.." for "..to_bare);
-		-- 1. route stanza
-		-- 2. roster push (subscription = none or to)
-		if rostermanager.unsubscribed(node, host, to_bare) then
-			rostermanager.roster_push(node, host, to_bare);
-			core_route_stanza(origin, stanza);
-		end
-	end
-	stanza.attr.from, stanza.attr.to = st_from, st_to;
-end
-
-function handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare)
-	local node, host = jid_split(to_bare);
-	local st_from, st_to = stanza.attr.from, stanza.attr.to;
-	stanza.attr.from, stanza.attr.to = from_bare, to_bare;
-	if stanza.attr.type == "probe" then
-		log("debug", "inbound probe from "..from_bare.." for "..to_bare);
-		if rostermanager.is_contact_subscribed(node, host, from_bare) then
-			if 0 == send_presence_of_available_resources(node, host, from_bare, origin) then
-				-- TODO send last recieved unavailable presence (or we MAY do nothing, which is fine too)
-			end
-		else
-			core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="unsubscribed"}));
-		end
-	elseif stanza.attr.type == "subscribe" then
-		log("debug", "inbound subscribe from "..from_bare.." for "..to_bare);
-		if rostermanager.is_contact_subscribed(node, host, from_bare) then
-			core_route_stanza(origin, st.presence({from=to_bare, to=from_bare, type="subscribed"})); -- already subscribed
-		else
-			if not rostermanager.is_contact_pending_in(node, host, from_bare) then
-				if rostermanager.set_contact_pending_in(node, host, from_bare) then
-					sessionmanager.send_to_available_resources(node, host, stanza);
-				end -- TODO else return error, unable to save
-			end
-		end
-	elseif stanza.attr.type == "unsubscribe" then
-		log("debug", "inbound unsubscribe from "..from_bare.." for "..to_bare);
-		if rostermanager.process_inbound_unsubscribe(node, host, from_bare) then
-			rostermanager.roster_push(node, host, from_bare);
-		end
-	elseif stanza.attr.type == "subscribed" then
-		log("debug", "inbound subscribed from "..from_bare.." for "..to_bare);
-		if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then
-			rostermanager.roster_push(node, host, from_bare);
-		end
-	elseif stanza.attr.type == "unsubscribed" then
-		log("debug", "inbound unsubscribed from "..from_bare.." for "..to_bare);
-		if rostermanager.process_inbound_subscription_approval(node, host, from_bare) then
-			rostermanager.roster_push(node, host, from_bare);
-		end
-	end -- discard any other type
-	stanza.attr.from, stanza.attr.to = st_from, st_to;
 end
 
 function core_route_stanza(origin, stanza)
@@ -306,6 +184,10 @@ function core_route_stanza(origin, stanza)
 	local from_node, from_host, from_resource = jid_split(from);
 	local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
 
+	-- Auto-detect origin if not specified
+	origin = origin or hosts[from_host];
+	if not origin then return false; end
+	
 	if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end
 
 	local host_session = hosts[host]
@@ -318,7 +200,7 @@ function core_route_stanza(origin, stanza)
 				-- if we get here, resource was not specified or was unavailable
 				if stanza.name == "presence" then
 					if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
-						handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
+						handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
 					else -- sender is available or unavailable
 						for _, session in pairs(user.sessions) do -- presence broadcast to all user resources.
 							if session.full_jid then -- FIXME should this be just for available resources? Do we need to check subscription?
@@ -361,11 +243,11 @@ function core_route_stanza(origin, stanza)
 			if user_exists(node, host) then
 				if stanza.name == "presence" then
 					if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
-						handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
+						handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
 					else
 						-- TODO send unavailable presence or unsubscribed
 					end
-				elseif stanza.name == "message" then
+				elseif stanza.name == "message" then -- FIXME if full jid, then send out to resources with highest priority
 					if stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type then
 						offlinemanager.store(node, host, stanza);
 						-- FIXME don't store messages with only chat state notifications
@@ -373,12 +255,13 @@ function core_route_stanza(origin, stanza)
 					-- TODO allow configuration of offline storage
 					-- TODO send error if not storing offline
 				elseif stanza.name == "iq" then
-					-- TODO send IQ error
+					origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
 				end
 			else -- user does not exist
 				-- TODO we would get here for nodeless JIDs too. Do something fun maybe? Echo service? Let plugins use xmpp:server/resource addresses?
 				if stanza.name == "presence" then
-					if stanza.attr.type == "probe" then
+					local t = stanza.attr.type;
+					if t == "subscribe" or t == "probe" then
 						origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
 					end
 					-- else ignore
@@ -398,17 +281,9 @@ function core_route_stanza(origin, stanza)
 	elseif origin.type == "component" or origin.type == "local" then
 		-- Route via s2s for components and modules
 		log("debug", "Routing outgoing stanza for %s to %s", origin.host, host);
-		for k,v in pairs(origin) do print("origin:", tostring(k), tostring(v)); end
-		print(tostring(host), tostring(from_host))
 		send_s2s(origin.host, host, stanza);
 	else
 		log("warn", "received stanza from unhandled connection type: %s", origin.type);
 	end
 	stanza.attr.to = to; -- reset
 end
-
-function handle_stanza_toremote(stanza)
-	log("error", "Stanza bound for remote host, but s2s is not implemented");
-end
-
-