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 send_s2s = require "core.s2smanager".send_to_host;
local user_exists = require "core.usermanager".user_exists;
+local rostermanager = require "core.rostermanager";
+local sessionmanager = require "core.sessionmanager";
+
+local s2s_verify_dialback = require "core.s2smanager".verify_dialback;
+local s2s_make_authenticated = require "core.s2smanager".make_authenticated;
+local format = string.format;
+local tostring = tostring;
+
local jid_split = require "util.jid".split;
local print = print;
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
+ elseif #stanza.tags > 1 and not(stanza.attr.type == "error" or stanza.attr.type == "result") then
error("Invalid IQ");
end
end
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
+ if origin.type == "c2s" then
+ stanza.attr.from = origin.full_jid; -- quick fix to prevent impersonation (FIXME this would be incorrect when the origin is not c2s)
+ end
- -- TODO presence subscriptions
if not to then
- core_handle_stanza(origin, stanza);
+ core_handle_stanza(origin, stanza);
+ elseif origin.type == "c2s" and stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
+ local node, host = jid_split(stanza.attr.to);
+ local to_bare = node and (node.."@"..host) or host; -- bare JID
+ local from_node, from_host = jid_split(stanza.attr.from);
+ local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
+ handle_outbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
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
+ elseif origin.type == "c2s" or origin.type == "s2sin" then
core_route_stanza(origin, stanza);
end
end
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
+ 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
core_route_stanza(origin, stanza);
end
end
- --[[local node, host = jid_split(stanza.attr.from);
+ local node, host = jid_split(stanza.attr.from);
for _, res in pairs(hosts[host].sessions[node].sessions) do -- broadcast to all resources
- if res.full_jid then
- res = user.sessions[k];
- break;
+ 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 not origin.presence then -- presence probes on initial presence
+ end
+ if not origin.presence then -- presence probes on initial presence -- FIXME does unavailable qualify as initial presence?
local probe = st.presence({from = origin.full_jid, type = "probe"});
- for jid in pairs(origin.roster) do
+ 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 resources
+ if res ~= origin and stanza.attr.type ~= "unavailable" and res.presence then -- FIXME does unavailable qualify as initial presence?
+ res.presence.attr.to = origin.full_jid;
+ core_route_stanza(res, res.presence);
+ res.presence.attr.to = nil;
+ end
+ end
+ -- TODO resend subscription requests
end
origin.presence = stanza;
stanza.attr.to = nil; -- reset it
log("debug", "Routing stanza to local");
handle_stanza(session, stanza);
end
+ elseif origin.type == "s2sin_unauthed" or origin.type == "s2sin" then
+ if stanza.attr.xmlns == "jabber:server:dialback" then
+ if stanza.name == "verify" then
+ -- We are being asked to verify the key, to ensure it was generated by us
+ log("debug", "verifying dialback key...");
+ local attr = stanza.attr;
+ print(tostring(attr.to), tostring(attr.from))
+ print(tostring(origin.to_host), tostring(origin.from_host))
+ -- FIXME: Grr, ejabberd breaks this one too?? it is black and white in XEP-220 example 34
+ --if attr.from ~= origin.to_host then error("invalid-from"); end
+ local type;
+ if s2s_verify_dialback(attr.id, attr.from, attr.to, stanza[1]) then
+ type = "valid"
+ else
+ type = "invalid"
+ log("warn", "Asked to verify a dialback key that was incorrect. An imposter is claiming to be %s?", attr.to);
+ end
+ origin.sends2s(format("<db:verify from='%s' to='%s' id='%s' type='%s'>%s</db:verify>", attr.to, attr.from, attr.id, type, stanza[1]));
+ elseif stanza.name == "result" and origin.type == "s2sin_unauthed" then
+ -- he wants to be identified through dialback
+ -- We need to check the key with the Authoritative server
+ local attr = stanza.attr;
+ origin.from_host = attr.from;
+ origin.to_host = attr.to;
+ origin.dialback_key = stanza[1];
+ log("debug", "asking %s if key %s belongs to them", attr.from, stanza[1]);
+ send_s2s(attr.to, attr.from, format("<db:verify from='%s' to='%s' id='%s'>%s</db:verify>", attr.to, attr.from, origin.streamid, stanza[1]));
+ hosts[attr.from].dialback_verifying = origin;
+ end
+ end
+ elseif origin.type == "s2sout_unauthed" or origin.type == "s2sout" then
+ if stanza.attr.xmlns == "jabber:server:dialback" then
+ if stanza.name == "result" then
+ if stanza.attr.type == "valid" then
+ s2s_make_authenticated(origin);
+ else
+ -- FIXME
+ error("dialback failed!");
+ end
+ elseif stanza.name == "verify" and origin.dialback_verifying then
+ local valid;
+ local attr = stanza.attr;
+ if attr.type == "valid" then
+ s2s_make_authenticated(origin.dialback_verifying);
+ valid = "valid";
+ else
+ -- Warn the original connection that is was not verified successfully
+ log("warn", "dialback for "..(origin.dialback_verifying.from_host or "(unknown)").." failed");
+ valid = "invalid";
+ end
+ origin.dialback_verifying.sends2s(format("<db:result from='%s' to='%s' id='%s' type='%s'>%s</db:result>", attr.from, attr.to, attr.id, valid, origin.dialback_verifying.dialback_key));
+ end
+ end
+ else
+ log("warn", "Unhandled origin: %s", origin.type);
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");
+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
+ end
+ end
+ 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
+ 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)
-- 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
- if stanza.name == "presence" and stanza.attr.type == "probe" then resource = nil; end
+ 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
if not res then
-- if we get here, resource was not specified or was unavailable
if stanza.name == "presence" 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
- else
- for k in pairs(user.sessions) do -- presence broadcast to all user resources
+ if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
+ handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
+ else -- sender is available or unavailable
+ for k in pairs(user.sessions) do -- presence broadcast to all user resources. FIXME should this be just for available resources? Do we need to check subscription?
if user.sessions[k].full_jid then
- stanza.attr.to = user.sessions[k].full_jid;
- send(user.sessions[k], stanza);
+ stanza.attr.to = user.sessions[k].full_jid; -- reset at the end of function
+ user.sessions[k].send(stanza);
end
end
end
end
end
-- TODO find resource with greatest priority
- send(res, stanza);
+ res.send(stanza);
else
-- TODO send IQ error
end
else
-- User + resource is online...
- stanza.attr.to = res.full_jid;
- send(res, stanza); -- Yay \o/
+ stanza.attr.to = res.full_jid; -- reset at the end of function
+ res.send(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
+ if stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then
+ handle_inbound_presence_subscriptions_and_probes(origin, stanza, from_bare, to_bare);
else
- -- TODO send unavailable presence
+ -- TODO send unavailable presence or unsubscribed
end
elseif stanza.name == "message" then
-- TODO send message error, or store offline messages
-- 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"}));
+ origin.send(st.presence({from = to_bare, to = from_bare, type = "unsubscribed"}));
end
-- else ignore
else
- send(origin, st.error_reply(stanza, "cancel", "service-unavailable"));
+ origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
end
end
end
- else
+ elseif origin.type == "c2s" then
-- Remote host
- if host_session then
- -- Send to session
- else
- -- Need to establish the connection
- end
+ 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
+ else
+ log("warn", "received stanza from unhandled connection type: %s", origin.type);
end
stanza.attr.to = to; -- reset
end
projects / prosody.git / blobdiff