--- Prosody IM v0.4
--- Copyright (C) 2008-2009 Matthew Wild
--- Copyright (C) 2008-2009 Waqas Hussain
+-- 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 log = require "util.logger".init("stanzarouter")
-local hosts = _G.hosts;
-
+local hosts = _G.prosody.hosts;
+local tostring = tostring;
local st = require "util.stanza";
local send_s2s = require "core.s2smanager".send_to_host;
-local user_exists = require "core.usermanager".user_exists;
-
-local rostermanager = require "core.rostermanager";
-local offlinemanager = require "core.offlinemanager";
-
-local modules_handle_stanza = require "core.modulemanager".handle_stanza;
-local component_handle_stanza = require "core.componentmanager".handle_stanza;
-
-local tostring = tostring;
-local t_insert = table.insert;
-local pairs = pairs;
-local ipairs = ipairs;
-
local jid_split = require "util.jid".split;
local jid_prepped_split = require "util.jid".prepped_split;
-local fire_event = prosody.events.fire_event;
+local full_sessions = _G.prosody.full_sessions;
+local bare_sessions = _G.prosody.bare_sessions;
+
+local function handle_unhandled_stanza(host, origin, stanza)
+ local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns or "jabber:client", origin.type;
+ if name == "iq" and xmlns == "jabber:client" then
+ if stanza.attr.type == "get" or stanza.attr.type == "set" then
+ xmlns = stanza.tags[1].attr.xmlns or "jabber:client";
+ log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns);
+ else
+ log("debug", "Discarding %s from %s of type: %s", name, origin_type, stanza.attr.type);
+ return true;
+ end
+ end
+ if stanza.attr.xmlns == nil then
+ log("debug", "Unhandled %s stanza: %s; xmlns=%s", origin.type, stanza.name, xmlns); -- we didn't handle it
+ if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
+ origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
+ end
+ elseif not((name == "features" or name == "error") and xmlns == "http://etherx.jabber.org/streams") then -- FIXME remove check once we handle S2S features
+ log("warn", "Unhandled %s stream element: %s; xmlns=%s: %s", origin.type, stanza.name, xmlns, tostring(stanza)); -- we didn't handle it
+ origin:close("unsupported-stanza-type");
+ end
+end
+
+local iq_types = { set=true, get=true, result=true, error=true };
function core_process_stanza(origin, stanza)
(origin.log or log)("debug", "Received[%s]: %s", origin.type, stanza:top_tag())
- -- Currently we guarantee every stanza to have an xmlns, should we keep this rule?
- if not stanza.attr.xmlns then stanza.attr.xmlns = "jabber:client"; end
-
-- TODO verify validity of stanza (as well as JID validity)
if stanza.attr.type == "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"));
+ if not stanza.attr.id then stanza.attr.id = ""; end -- COMPAT Jabiru doesn't send the id attribute on roster requests
+ if not iq_types[stanza.attr.type] or ((stanza.attr.type == "set" or stanza.attr.type == "get") and (#stanza.tags ~= 1)) then
+ origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid IQ type or incorrect number of children"));
return;
end
end
- if origin.type == "c2s" then
+ if origin.type == "c2s" and not stanza.attr.xmlns then
if not origin.full_jid
and not(stanza.name == "iq" and stanza.attr.type == "set" and stanza.tags[1] and stanza.tags[1].name == "bind"
and stanza.tags[1].attr.xmlns == "urn:ietf:params:xml:ns:xmpp-bind") then
-- authenticated client isn't bound and current stanza is not a bind request
- origin.send(st.error_reply(stanza, "auth", "not-authorized")); -- FIXME maybe allow stanzas to account or server
+ if stanza.attr.type ~= "result" and stanza.attr.type ~= "error" then
+ origin.send(st.error_reply(stanza, "auth", "not-authorized")); -- FIXME maybe allow stanzas to account or server
+ end
return;
end
return; -- FIXME what should we do here?
end]] -- FIXME
- if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == "jabber:client" then
+ if (origin.type == "s2sin" or origin.type == "c2s" or origin.type == "component") and xmlns == nil 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?
return; -- FIXME what should we do here? does this work with subdomains?
end
end
- core_post_stanza(origin, stanza);
+ core_post_stanza(origin, stanza, origin.full_jid);
else
local h = hosts[stanza.attr.to or origin.host or origin.to_host];
if h then
local event;
- if stanza.attr.xmlns == "jabber:client" then
+ if xmlns == nil then
if stanza.name == "iq" and (stanza.attr.type == "set" or stanza.attr.type == "get") then
event = "stanza/iq/"..stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name;
else
event = "stanza/"..stanza.name;
end
else
- event = "stanza/"..stanza.attr.xmlns..":"..stanza.name;
+ event = "stanza/"..xmlns..":"..stanza.name;
end
if h.events.fire_event(event, {origin = origin, stanza = stanza}) then return; end
end
- if host and not hosts[host] then host = nil; end -- workaround for a Pidgin bug which sets 'to' to the SRV result
- modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
+ if host and not hosts[host] then host = nil; end -- COMPAT: workaround for a Pidgin bug which sets 'to' to the SRV result
+ handle_unhandled_stanza(host or origin.host or origin.to_host, origin, stanza);
end
end
-function core_post_stanza(origin, stanza)
+function core_post_stanza(origin, stanza, preevents)
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_type;
+ local to_type, to_self;
if node then
if resource then
to_type = '/full';
to_type = '/bare';
if node == origin.username and host == origin.host then
stanza.attr.to = nil;
+ to_self = true;
end
end
else
to_type = '/host';
else
to_type = '/bare';
+ to_self = true;
end
end
local event_data = {origin=origin, stanza=stanza};
- if origin.full_jid then -- c2s connection
+ if preevents then -- c2s connection
if hosts[origin.host].events.fire_event('pre-'..stanza.name..to_type, event_data) then return; end -- do preprocessing
end
local h = hosts[to_bare] or hosts[host or origin.host];
if h then
- if h.type == "component" then
- component_handle_stanza(origin, stanza);
- return;
- else
- if h.events.fire_event(stanza.name..to_type, event_data) then return; end -- do processing
- end
- end
-
- if host and fire_event(host.."/"..stanza.name, event_data) then
- -- event handled
- elseif stanza.name == "presence" and origin.host and fire_event(origin.host.."/"..stanza.name, event_data) then
- -- event handled
- elseif not to then
- modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
- elseif hosts[to] and hosts[to].type == "local" then -- directed at a local server
- modules_handle_stanza(host or origin.host or origin.to_host, 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 hosts[host] and hosts[host].type == "local" and stanza.name == "iq" and not resource then -- directed at bare JID
- modules_handle_stanza(host or origin.host or origin.to_host, origin, stanza);
+ if h.events.fire_event(stanza.name..to_type, event_data) then return; end -- do processing
+ if to_self and h.events.fire_event(stanza.name..'/self', event_data) then return; end -- do processing
+ handle_unhandled_stanza(h.host, origin, stanza);
else
core_route_stanza(origin, stanza);
end
end
function core_route_stanza(origin, stanza)
- -- Hooks
- --- ...later
-
- -- Deliver
- local to = stanza.attr.to;
- local node, host, resource = jid_split(to);
- local to_bare = node and (node.."@"..host) or host; -- bare JID
- 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
+ local node, host, resource = jid_split(stanza.attr.to);
+ local from_node, from_host, from_resource = jid_split(stanza.attr.from);
-- Auto-detect origin if not specified
origin = origin or hosts[from_host];
if not origin then return false; end
- if 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
+ if hosts[host] then
-- old stanza routing code removed
+ core_post_stanza(origin, stanza);
elseif origin.type == "c2s" then
-- Remote host
- local xmlns = stanza.attr.xmlns;
- --stanza.attr.xmlns = "jabber:server";
- stanza.attr.xmlns = nil;
- log("debug", "sending s2s stanza: %s", tostring(stanza));
- send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
- stanza.attr.xmlns = xmlns; -- reset
+ if not hosts[from_host] then
+ log("error", "No hosts[from_host] (please report): %s", tostring(stanza));
+ end
+ if (not hosts[from_host]) or (not hosts[from_host].disallow_s2s) then
+ local xmlns = stanza.attr.xmlns;
+ --stanza.attr.xmlns = "jabber:server";
+ stanza.attr.xmlns = nil;
+ log("debug", "sending s2s stanza: %s", tostring(stanza.top_tag and stanza:top_tag()) or stanza);
+ send_s2s(origin.host, host, stanza); -- TODO handle remote routing errors
+ stanza.attr.xmlns = xmlns; -- reset
+ else
+ core_route_stanza(hosts[from_host], st.error_reply(stanza, "cancel", "not-allowed", "Communication with remote servers is not allowed"));
+ end
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", from_host, host);
send_s2s(from_host, host, stanza);
else
- log("warn", "received stanza from unhandled connection type: %s", origin.type);
+ log("warn", "received %s stanza from unhandled connection type: %s", tostring(stanza.name), tostring(origin.type));
end
- stanza.attr.to = to; -- reset
end
projects / prosody.git / blobdiff