Backed out changeset 98e9fea75e5b

1 files changed, 5 insertions, 223 deletions

diff --git a/core/stanza_router.lua b/core/stanza_router.lua
index fe1c8754..2203f351 100644
--- a/core/stanza_router.lua
+++ b/core/stanza_router.lua
@@ -1,223 +1,3 @@
-<<<<<<< local

-

--- 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")

-

-local st = require "util.stanza";

-local send = require "core.sessionmanager".send_to_session;

--- local send_s2s = require "core.s2smanager".send_to_host;

-local user_exists = require "core.usermanager".user_exists;

-

-local jid_split = require "util.jid".split;

-local print, debug = print, debug;

-

-function core_process_stanza(origin, stanza)

-	log("debug", "Received: "..tostring(stanza))

-	-- TODO verify validity of stanza (as well as JID validity)

-	if stanza.name == "iq" and not(#stanza.tags == 1 and stanza.tags[1].attr.xmlns) then

-		if stanza.attr.type == "set" or stanza.attr.type == "get" then

-			error("Invalid IQ");

-		elseif #stanza.tags > 1 or not(stanza.attr.type == "error" or stanza.attr.type == "result") then

-			error("Invalid IQ");

-		end

-	end

-

-	if origin.type == "c2s" and not origin.full_jid

-		and not(stanza.name == "iq" and stanza.tags[1].name == "bind"

-				and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then

-		error("Client MUST bind resource after auth");

-	end

-

-	local to = stanza.attr.to;

-	stanza.attr.from = origin.full_jid; -- quick fix to prevent impersonation (FIXME this would be incorrect when the origin is not c2s)

-	-- TODO also, stazas should be returned to their original state before the function ends

-	

-	-- TODO presence subscriptions

-	if not to then

-			core_handle_stanza(origin, stanza);

-	elseif hosts[to] and hosts[to].type == "local" then

-		core_handle_stanza(origin, stanza);

-	elseif stanza.name == "iq" and not select(3, jid_split(to)) then

-		core_handle_stanza(origin, stanza);

-	elseif origin.type == "c2s" then

-		core_route_stanza(origin, stanza);

-	end

-end

-

--- This function handles stanzas which are not routed any further,

--- that is, they are handled by this server

-function core_handle_stanza(origin, stanza)

-	-- Handlers

-	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 == "available" 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 and from resources

-					if res ~= origin then

-						if res.full_jid then -- to resource. FIXME is this check correct? Maybe it should be res.presence

-							stanza.attr.to = res.full_jid;

-							core_route_stanza(origin, stanza);

-						end

-						if res.presence then -- from all resources for which we have presence

-							res.presence.attr.to = origin.full_jid;

-							core_route_stanza(res, res.presence);

-							res.presence.attr.to = nil;

-						end

-					end

-				end

-				if not origin.presence then -- presence probes on initial presence

-					local probe = st.presence({from = origin.full_jid, type = "probe"});

-					for jid in pairs(origin.roster) do

-						local subscription = origin.roster[jid].subscription;

-						if subscription == "both" or subscription == "to" then

-							probe.attr.to = jid;

-							core_route_stanza(origin, probe);

-						end

-					end

-					-- TODO resend subscription requests

-				end

-				origin.presence = stanza;

-				stanza.attr.to = nil; -- reset it

-			else

-				-- TODO error, bad type

-			end

-		else

-			log("debug", "Routing stanza to local");

-			handle_stanza(session, stanza);

-		end

-	end

-end

-

-function is_authorized_to_see_presence(origin, username, host)

-	local roster = datamanager.load(username, host, "roster") or {};

-	local item = roster[origin.username.."@"..origin.host];

-	return item and (item.subscription == "both" or item.subscription == "from");

-end

-

-function core_route_stanza(origin, stanza)

-	-- Hooks

-	--- ...later

-	

-	-- Deliver

-	local to = stanza.attr.to;

-	local node, host, resource = jid_split(to);

-

-	if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable") then resource = nil; end

-

-	local host_session = hosts[host]

-	if host_session and host_session.type == "local" then

-		-- Local host

-		local user = host_session.sessions[node];

-		if user then

-			local res = user.sessions[resource];

-			if not res then

-				-- 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

-						if stanza.attr.type == "probe" then

-							if is_authorized_to_see_presence(origin, node, host) then

-								for k in pairs(user.sessions) do -- return presence for all resources

-									if user.sessions[k].presence then

-										local pres = user.sessions[k].presence;

-										pres.attr.to = origin.full_jid;

-										pres.attr.from = user.sessions[k].full_jid;

-										send(origin, pres);

-										pres.attr.to = nil;

-										pres.attr.from = nil;

-									end

-								end

-							else

-								send(origin, st.presence({from=user.."@"..host, to=origin.username.."@"..origin.host, type="unsubscribed"}));

-							end

-						elseif stanza.attr.type == "subscribe" then

-							-- TODO

-						elseif stanza.attr.type == "unsubscribe" then

-							-- TODO

-						elseif stanza.attr.type == "subscribed" then

-							-- TODO

-						elseif stanza.attr.type == "unsubscribed" then

-							-- TODO

-						end -- discard any other type

-					else -- sender is available or unavailable

-						for k in pairs(user.sessions) do -- presence broadcast to all user resources

-							if user.sessions[k].full_jid then

-								stanza.attr.to = user.sessions[k].full_jid;

-								send(user.sessions[k], stanza);

-							end

-						end

-					end

-				elseif stanza.name == "message" then -- select a resource to recieve message

-					for k in pairs(user.sessions) do

-						if user.sessions[k].full_jid then

-							res = user.sessions[k];

-							break;

-						end

-					end

-					-- TODO find resource with greatest priority

-					send(res, stanza);

-				else

-					-- TODO send IQ error

-				end

-			else

-				-- User + resource is online...

-				stanza.attr.to = res.full_jid;

-				send(res, stanza); -- Yay \o/

-			end

-		else

-			-- user not online

-			if user_exists(node, host) then

-				if stanza.name == "presence" then

-					if stanza.attr.type == "probe" and is_authorized_to_see_presence(origin, node, host) then -- FIXME what to do for not c2s?

-						-- TODO send last recieved unavailable presence

-					else

-						-- TODO send unavailable presence

-					end

-				elseif stanza.name == "message" then

-					-- TODO send message error, or store offline messages

-				elseif stanza.name == "iq" then

-					-- TODO send IQ error

-				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

-						send(origin, st.presence({from = user.."@"..host, to = origin.username.."@"..origin.host, type = "unsubscribed"}));

-					end

-					-- else ignore

-				else

-					send(origin, st.error_reply(stanza, "cancel", "service-unavailable"));

-				end

-			end

-		end

-	else

-		-- Remote host

-		if host_session then

-			-- Send to session

-		else

-			-- Need to establish the connection

-		end

-	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

-=======

 
 -- 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
@@ -313,7 +93,6 @@ function core_handle_stanza(origin, stanza)
 	end
 end
 
--- TODO: Does this function belong here?
 function is_authorized_to_see_presence(origin, username, host)
 	local roster = datamanager.load(username, host, "roster") or {};
 	local item = roster[origin.username.."@"..origin.host];
@@ -407,7 +186,11 @@ function core_route_stanza(origin, stanza)
 		end
 	else
 		-- Remote host
-		send_s2s(origin.host, host, stanza);
+		if host_session then
+			-- Send to session
+		else
+			-- Need to establish the connection
+		end
 	end
 	stanza.attr.to = to; -- reset
 end
@@ -415,4 +198,3 @@ end
 function handle_stanza_toremote(stanza)
 	log("error", "Stanza bound for remote host, but s2s is not implemented");
 end
->>>>>>> other