tools/ejabberd2prosody: Fixed private storage export
[prosody.git] / core / stanza_router.lua
index 4704625bef5f34946577eacf26879c02442a29cb..80b51cc62431277137f3e2c827eadb1f2db62aa5 100644 (file)
@@ -1,26 +1,17 @@
--- Prosody IM v0.2
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 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.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
 --
 
 
 
 local log = require "util.logger".init("stanzarouter")
 
+local hosts = _G.hosts;
+
 local st = require "util.stanza";
 local send_s2s = require "core.s2smanager".send_to_host;
 local user_exists = require "core.usermanager".user_exists;
@@ -35,9 +26,9 @@ 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 handle_outbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_outbound_presence_subscriptions_and_probes;
+local handle_inbound_presence_subscriptions_and_probes = function()end;--require "core.presencemanager".handle_inbound_presence_subscriptions_and_probes;
+local handle_normal_presence = function()end;--require "core.presencemanager".handle_normal_presence;
 
 local format = string.format;
 local tostring = tostring;
@@ -45,10 +36,13 @@ local t_concat = table.concat;
 local t_insert = table.insert;
 local tonumber = tonumber;
 local s_find = string.find;
+local pairs = pairs;
+local ipairs = ipairs;
 
 local jid_split = require "util.jid".split;
 local jid_prepped_split = require "util.jid".prepped_split;
 local print = print;
+local fire_event = require "core.eventmanager2".fire_event;
 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?
@@ -56,15 +50,15 @@ local function checked_error_reply(origin, stanza)
 end
 
 function core_process_stanza(origin, stanza)
-       (origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:pretty_print()) --top_tag())
+       (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)
-       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 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then
-                       error("Invalid IQ");
+       if stanza.attr.xmlns == "error" and #stanza.tags == 0 then return; end -- TODO invalid stanza, log
+       if stanza.name == "iq" then
+               if (stanza.attr.type == "set" or stanza.attr.type == "get") and #stanza.tags ~= 1 then
+                       origin.send(st.error_reply(stanza, "modify", "bad-request"));
+                       return;
                end
        end
 
@@ -108,7 +102,9 @@ function core_process_stanza(origin, stanza)
        end]] -- FIXME
 
        -- FIXME do stanzas not of jabber:client get handled by components?
-       if (origin.type == "s2sin" or origin.type == "c2s") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then                        
+       if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and (not xmlns or xmlns == "jabber:server" or xmlns == "jabber:client") then                  
+               local event_data = {origin=origin, stanza=stanza};
+               fire_event(tostring(host or origin.host).."/"..stanza.name, event_data);
                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?
@@ -116,6 +112,11 @@ function core_process_stanza(origin, stanza)
                                return; -- FIXME what should we do here? does this work with subdomains?
                        end
                end
+               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 -- directed presence
+                       origin.directed = origin.directed or {};
+                       origin.directed[to] = true;
+                       --t_insert(origin.directed, to); -- FIXME does it make more sense to add to_bare rather than to?
+               end
                if not to then
                        core_handle_stanza(origin, stanza);
                elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
@@ -128,15 +129,11 @@ function core_process_stanza(origin, stanza)
                        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
+               elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
                        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
+               elseif hosts[host] and hosts[host].type == "local" 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
@@ -152,7 +149,7 @@ function core_handle_stanza(origin, stanza)
        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
+                               if stanza.attr.type == nil or stanza.attr.type == "unavailable" and stanza.attr.type ~= "error" then
                                        handle_normal_presence(origin, stanza, core_route_stanza);
                                else
                                        log("warn", "Unhandled c2s presence: %s", tostring(stanza));
@@ -188,7 +185,15 @@ function core_route_stanza(origin, stanza)
        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
+       if hosts[to] and hosts[to].type == "component" then -- hack to allow components to handle node@server/resource and server/resource
+               return component_handle_stanza(origin, stanza);
+       elseif hosts[to_bare] and hosts[to_bare].type == "component" then -- hack to allow components to handle node@server
+               return component_handle_stanza(origin, stanza);
+       elseif hosts[host] and hosts[host].type == "component" then -- directed at a component
+               return component_handle_stanza(origin, stanza);
+       end
+
+       if stanza.name == "presence" and (stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error") then resource = nil; end
 
        local host_session = hosts[host]
        if host_session and host_session.type == "local" then
@@ -199,9 +204,9 @@ function core_route_stanza(origin, stanza)
                        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 ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
                                                handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare, core_route_stanza);
-                                       else -- sender is available or unavailable
+                                       elseif not resource then -- sender is available or unavailable or error
                                                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?
                                                                stanza.attr.to = session.full_jid; -- reset at the end of function
@@ -210,28 +215,42 @@ function core_route_stanza(origin, stanza)
                                                end
                                        end
                                elseif stanza.name == "message" then -- select a resource to recieve message
-                                       local priority = 0;
-                                       local recipients = {};
-                                       for _, session in pairs(user.sessions) do -- find resource with greatest priority
-                                               local p = session.priority;
-                                               if p > priority then
-                                                       priority = p;
-                                                       recipients = {session};
-                                               elseif p == priority then
-                                                       t_insert(recipients, session);
+                                       stanza.attr.to = to_bare;
+                                       if stanza.attr.type == 'headline' then
+                                               for _, session in pairs(user.sessions) do -- find resource with greatest priority
+                                                       if session.presence and session.priority >= 0 then
+                                                               session.send(stanza);
+                                                       end
+                                               end
+                                       elseif resource and stanza.attr.type == 'groupchat' then
+                                               -- Groupchat message sent to offline resource
+                                               origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
+                                       else
+                                               local priority = 0;
+                                               local recipients = {};
+                                               for _, session in pairs(user.sessions) do -- find resource with greatest priority
+                                                       if session.presence then
+                                                               local p = session.priority;
+                                                               if p > priority then
+                                                                       priority = p;
+                                                                       recipients = {session};
+                                                               elseif p == priority then
+                                                                       t_insert(recipients, session);
+                                                               end
+                                                       end
+                                               end
+                                               local count = 0;
+                                               for _, session in ipairs(recipients) do
+                                                       session.send(stanza);
+                                                       count = count + 1;
+                                               end
+                                               if count == 0 and (stanza.attr.type == "chat" or stanza.attr.type == "normal" or not stanza.attr.type) then
+                                                       offlinemanager.store(node, host, stanza);
+                                                       -- TODO deal with storage errors
                                                end
                                        end
-                                       local count = 0;
-                                       for _, session in pairs(recipients) do
-                                               session.send(stanza);
-                                               count = count + 1;
-                                       end
-                                       if count == 0 then
-                                               offlinemanager.store(node, host, stanza);
-                                               -- TODO deal with storage errors
-                                       end
-                               else
-                                       -- TODO send IQ error
+                               elseif stanza.attr.type == "get" or stanza.attr.type == "set" then
+                                       origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
                                end
                        else
                                -- User + resource is online...
@@ -242,19 +261,24 @@ function core_route_stanza(origin, stanza)
                        -- user not online
                        if user_exists(node, host) then
                                if stanza.name == "presence" then
-                                       if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
+                                       if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" and stanza.attr.type ~= "error" then
                                                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 -- FIXME if full jid, then send out to resources with highest priority
+                                       stanza.attr.to = to_bare; -- TODO not in RFC, but seems obvious. Should discuss on the mailing list.
                                        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
+                                       elseif stanza.attr.type == "groupchat" then
+                                               local reply = st.error_reply(stanza, "cancel", "service-unavailable");
+                                               reply.attr.from = to;
+                                               origin.send(reply);
                                        end
                                        -- TODO allow configuration of offline storage
                                        -- TODO send error if not storing offline
-                               elseif stanza.name == "iq" then
+                               elseif stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then
                                        origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
                                end
                        else -- user does not exist
@@ -265,7 +289,7 @@ function core_route_stanza(origin, stanza)
                                                origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
                                        end
                                        -- else ignore
-                               else
+                               elseif stanza.attr.type ~= "error" and (stanza.name ~= "iq" or stanza.attr.type ~= "result") then
                                        origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
                                end
                        end