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session.js
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session.js
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/**
* Aggregates UserSession instances
*
* Emits 'stanza' for traffic coming from users. Use send() for
* traffic to users.
*
* TODO: inherit from EventEmitter
*/
exports.SessionManager = function() {
this.userSessions = {};
};
exports.SessionManager.prototype.addClient = function(jid, conn) {
var userSession = this.userSessions[jid];
if (!userSession)
userSession = this.userSessions[jid] = new exports.UserSession(jid);
userSession.addClient(conn);
};
/**
* Aggregates ClientSession instances
*/
exports.UserSession = function(jid) {
this.jid = jid;
this.clientSessions = [];
}
exports.UserSession.prototype.addClient = function(conn) {
this.clientSessions.push(new exports.ClientSession(conn));
};
/**
* One client instance of a user
*/
exports.ClientSession = function(conn) {
var that = this;
this.conn = conn;
this.conn.on('stanza', function(stanza) {
that.onStanza(stanza);
});
};
var stanzaHooks = [];
exports.ClientSession.prototype.onStanza = function(stanza) {
var that = this;
var hooks = stanzaHooks.slice(0); // clone
var replyCb = function(reply) {
that.conn.send(reply);
};
var nextCb = function() {
var cb;
if ((cb = hooks.shift())) {
cb(stanza, nextCb, replyCb);
}
};
nextCb();
};
/**
* Handle stanza from client
*
* @param {Function} cb Callback called with (stanza, nextHookCb, replyCb)
*/
exports.addStanzaHook = function(cb) {
stanzaHooks.push(cb);
};