--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/core/stanza_dispatch.lua Sun Aug 24 18:01:20 2008 +0100
@@ -0,0 +1,150 @@
+
+require "util.stanza"
+
+local st = stanza;
+
+local t_concat = table.concat;
+local format = string.format;
+
+function init_stanza_dispatcher(session)
+ local iq_handlers = {};
+
+ local session_log = session.log;
+ local log = function (type, msg) session_log(type, "stanza_dispatcher", msg); end
+ local send = session.send;
+ local send_to;
+ do
+ local _send_to = session.send_to;
+ send_to = function (...) _send_to(session, ...); end
+ end
+
+ iq_handlers["jabber:iq:auth"] =
+ function (stanza)
+ local username = stanza.tags[1]:child_with_name("username");
+ local password = stanza.tags[1]:child_with_name("password");
+ local resource = stanza.tags[1]:child_with_name("resource");
+ if not (username and password and resource) then
+ local reply = st.reply(stanza);
+ send(reply:query("jabber:iq:auth")
+ :tag("username"):up()
+ :tag("password"):up()
+ :tag("resource"):up());
+ return true;
+ else
+ username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
+ print(username, password, resource)
+ local reply = st.reply(stanza);
+ require "core.usermanager"
+ if usermanager.validate_credentials(session.host, username, password) then
+ -- Authentication successful!
+ session.username = username;
+ session.resource = resource;
+ session.full_jid = username.."@"..session.host.."/"..session.resource;
+ if not hosts[session.host].sessions[username] then
+ hosts[session.host].sessions[username] = { sessions = {} };
+ end
+ hosts[session.host].sessions[username].sessions[resource] = session;
+ send(st.reply(stanza));
+ return true;
+ else
+ local reply = st.reply(stanza);
+ reply.attr.type = "error";
+ reply:tag("error", { code = "401", type = "auth" })
+ :tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
+ send(reply);
+ return true;
+ end
+ end
+
+ end
+
+ iq_handlers["jabber:iq:roster"] =
+ function (stanza)
+ if stanza.attr.type == "get" then
+ session.roster = session.roster or rostermanager.getroster(session.username, session.host);
+ if session.roster == false then
+ send(st.reply(stanza)
+ :tag("error", { type = "wait" })
+ :tag("internal-server-error", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}));
+ return true;
+ else session.roster = session.roster or {};
+ end
+ local roster = st.reply(stanza)
+ :query("jabber:iq:roster");
+ for jid in pairs(session.roster) do
+ roster:tag("item", { jid = jid, subscription = "none" }):up();
+ end
+ send(roster);
+ return true;
+ end
+ end
+
+
+ return function (stanza)
+ log("info", "--> "..tostring(stanza));
+ if (not stanza.attr.to) or (hosts[stanza.attr.to] and hosts[stanza.attr.to].type == "local") then
+ if stanza.name == "iq" then
+ if not stanza.tags[1] then log("warn", "<iq> without child is invalid"); return; end
+ if not stanza.attr.id then log("warn", "<iq> without id attribute is invalid"); end
+ local xmlns = (stanza.tags[1].attr and stanza.tags[1].attr.xmlns) or nil;
+ if not xmlns then log("warn", "Child of <iq> has no xmlns - invalid"); return; end
+ if (((not stanza.attr.to) or stanza.attr.to == session.host or stanza.attr.to:match("@[^/]+$")) and (stanza.attr.type == "get" or stanza.attr.type == "set")) then -- Stanza sent to us
+ if iq_handlers[xmlns] then
+ if iq_handlers[xmlns](stanza) then return; end;
+ end
+ log("warn", "Unhandled namespace: "..xmlns);
+ send(format("<iq type='error' id='%s'><error type='cancel'><service-unavailable/></error></iq>", stanza.attr.id));
+ return;
+ end
+ elseif stanza.name == "presence" then
+ if session.roster then
+ local initial_presence = not session.last_presence;
+ session.last_presence = stanza;
+
+ -- Broadcast presence and probes
+ local broadcast = st.presence({ from = session.full_jid, type = stanza.attr.type });
+ --local probe = st.presence { from = broadcast.attr.from, type = "probe" };
+
+ for child in stanza:childtags() do
+ broadcast:add_child(child);
+ end
+ for contact_jid in pairs(session.roster) do
+ broadcast.attr.to = contact_jid;
+ send_to(contact_jid, broadcast);
+ if initial_presence then
+ print("Initital presence");
+ local node, host = jid.split(contact_jid);
+ if hosts[host] and hosts[host].type == "local" then
+ local contact = hosts[host].sessions[node]
+ if contact then
+ local pres = st.presence { to = session.full_jid };
+ for resource, contact_session in pairs(contact.sessions) do
+ if contact_session.last_presence then
+ pres.tags = contact_session.last_presence.tags;
+ pres.attr.from = contact_session.full_jid;
+ send(pres);
+ end
+ end
+ end
+ --FIXME: Do we send unavailable if they are offline?
+ else
+ probe.attr.to = contact;
+ send_to(contact, probe);
+ end
+ end
+ end
+
+ -- Probe for our contacts' presence
+ end
+ end
+ else
+ --end
+ --if stanza.attr.to and ((not hosts[stanza.attr.to]) or hosts[stanza.attr.to].type ~= "local") then
+ -- Need to route stanza
+ stanza.attr.from = session.username.."@"..session.host;
+ session:send_to(stanza.attr.to, stanza);
+ end
+ end
+
+end
+