-local tostring = tostring;
+local tonumber, tostring = tonumber, tostring;
+local ipairs, pairs, print, next= ipairs, pairs, print, next;
+local collectgarbage = collectgarbage;
+local m_random = import("math", "random");
+local format = import("string", "format");
+local hosts = hosts;
+local sessions = sessions;
+
+local modulemanager = require "core.modulemanager";
local log = require "util.logger".init("sessionmanager");
+local error = error;
+local uuid_generate = require "util.uuid".generate;
+local rm_load_roster = require "core.rostermanager".load_roster;
+
+local st = require "util.stanza";
+
+local newproxy = newproxy;
+local getmetatable = getmetatable;
module "sessionmanager"
+local open_sessions = 0;
+
function new_session(conn)
- local session = { conn = conn, notopen = true, priority = 0, type = "c2s_unauthed" };
+ local session = { conn = conn, priority = 0, type = "c2s_unauthed" };
+ if true then
+ session.trace = newproxy(true);
+ getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; print("Session got collected, now "..open_sessions.." sessions are allocated") end;
+ end
+ open_sessions = open_sessions + 1;
+ log("info", "open sessions now: ".. open_sessions);
local w = conn.write;
session.send = function (t) w(tostring(t)); end
return session;
end
-function send_to_session(session, data)
- log("debug", "Sending...", tostring(data));
- session.conn.write(tostring(data));
+function destroy_session(session, err)
+ (session.log or log)("info", "Destroying session");
+
+ -- Send unavailable presence
+ if session.presence then
+ local pres = st.presence{ type = "unavailable" };
+ if (not err) or err == "closed" then err = "connection closed"; end
+ pres:tag("status"):text("Disconnected: "..err);
+ session.stanza_dispatch(pres);
+ end
+
+ -- Remove session/resource from user's session list
+ if session.host and session.username then
+ if session.resource then
+ hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
+ end
+ if hosts[session.host] and hosts[session.host].sessions[session.username] then
+ if not next(hosts[session.host].sessions[session.username].sessions) then
+ log("debug", "All resources of %s are now offline", session.username);
+ hosts[session.host].sessions[session.username] = nil;
+ end
+ end
+ end
+
+ for k in pairs(session) do
+ if k ~= "trace" then
+ session[k] = nil;
+ end
+ end
+end
+
+function make_authenticated(session, username)
+ session.username = username;
+ if session.type == "c2s_unauthed" then
+ session.type = "c2s";
+ end
+ return true;
+end
+
+-- returns true, nil on success
+-- returns nil, err_type, err, err_message on failure
+function bind_resource(session, resource)
+ if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end
+ if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end
+ -- We don't support binding multiple resources
+
+ resource = resource or uuid_generate();
+ --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
+
+ if not hosts[session.host].sessions[session.username] then
+ hosts[session.host].sessions[session.username] = { sessions = {} };
+ else
+ if hosts[session.host].sessions[session.username].sessions[resource] then
+ -- Resource conflict
+ return nil, "cancel", "conflict", "Resource already exists"; -- TODO kick old resource
+ end
+ end
+
+ session.resource = resource;
+ session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
+ hosts[session.host].sessions[session.username].sessions[resource] = session;
+
+ session.roster = rm_load_roster(session.username, session.host);
+
+ return true;
+end
+
+function streamopened(session, attr)
+ local send = session.send;
+ session.host = attr.to or error("Client failed to specify destination hostname");
+ session.version = tonumber(attr.version) or 0;
+ session.streamid = m_random(1000000, 99999999);
+ (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
+
+
+ send("<?xml version='1.0'?>");
+ send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host));
+
+ if not hosts[session.host] then
+ -- We don't serve this host...
+ session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
+ return;
+ end
+
+
+ local features = st.stanza("stream:features");
+ modulemanager.fire_event("stream-features", session, features);
+
+ send(features);
+
+ (session.log or log)("info", "Sent reply <stream:stream> to client");
+ session.notopen = nil;
+end
+
+function send_to_available_resources(user, host, stanza)
+ local count = 0;
+ local to = stanza.attr.to;
+ stanza.attr.to = nil;
+ local h = hosts[host];
+ if h and h.type == "local" then
+ local u = h.sessions[user];
+ if u then
+ for k, session in pairs(u.sessions) do
+ if session.presence then
+ session.send(stanza);
+ count = count + 1;
+ end
+ end
+ end
+ end
+ stanza.attr.to = to;
+ return count;
end
return _M;
\ No newline at end of file