444 lines
13 KiB
JavaScript
444 lines
13 KiB
JavaScript
/*
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Copyright 2010, François de Metz <francois@2metz.fr>
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*/
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/**
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* Roster Plugin
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* Allow easily roster management
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*
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* Features
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* * Get roster from server
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* * handle presence
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* * handle roster iq
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* * subscribe/unsubscribe
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* * authorize/unauthorize
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* * roster versioning (xep 237)
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*/
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Strophe.addConnectionPlugin('roster',
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{
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_connection: null,
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_callbacks : [],
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/** Property: items
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* Roster items
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* [
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* {
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* name : "",
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* jid : "",
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* subscription : "",
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* ask : "",
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* groups : ["", ""],
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* resources : {
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* myresource : {
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* show : "",
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* status : "",
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* priority : ""
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* }
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* }
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* }
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* ]
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*/
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items : [],
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/** Property: ver
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* current roster revision
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* always null if server doesn't support xep 237
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*/
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ver : null,
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/** Function: init
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* Plugin init
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*
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* Parameters:
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* (Strophe.Connection) conn - Strophe connection
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*/
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init: function(conn)
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{
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this._connection = conn;
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this.items = [];
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// Override the connect and attach methods to always add presence and roster handlers.
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// They are removed when the connection disconnects, so must be added on connection.
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var oldCallback, roster = this, _connect = conn.connect, _attach = conn.attach;
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var newCallback = function(status)
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{
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if (status == Strophe.Status.ATTACHED || status == Strophe.Status.CONNECTED)
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{
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try
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{
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// Presence subscription
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conn.addHandler(roster._onReceivePresence.bind(roster), null, 'presence', null, null, null);
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conn.addHandler(roster._onReceiveIQ.bind(roster), Strophe.NS.ROSTER, 'iq', "set", null, null);
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}
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catch (e)
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{
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Strophe.error(e);
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}
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}
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if (oldCallback !== null)
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oldCallback.apply(this, arguments);
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};
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conn.connect = function(jid, pass, callback, wait, hold)
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{
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oldCallback = callback;
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if (typeof arguments[0] == "undefined")
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arguments[0] = null;
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if (typeof arguments[1] == "undefined")
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arguments[1] = null;
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arguments[2] = newCallback;
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_connect.apply(conn, arguments);
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};
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conn.attach = function(jid, sid, rid, callback, wait, hold, wind)
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{
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oldCallback = callback;
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if (typeof arguments[0] == "undefined")
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arguments[0] = null;
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if (typeof arguments[1] == "undefined")
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arguments[1] = null;
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if (typeof arguments[2] == "undefined")
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arguments[2] = null;
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arguments[3] = newCallback;
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_attach.apply(conn, arguments);
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};
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Strophe.addNamespace('ROSTER_VER', 'urn:xmpp:features:rosterver');
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Strophe.addNamespace('NICK', 'http://jabber.org/protocol/nick');
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},
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/** Function: supportVersioning
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* return true if roster versioning is enabled on server
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*/
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supportVersioning: function()
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{
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return (this._connection.features && this._connection.features.getElementsByTagName('ver').length > 0);
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},
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/** Function: get
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* Get Roster on server
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*
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* Parameters:
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* (Function) userCallback - callback on roster result
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* (String) ver - current rev of roster
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* (only used if roster versioning is enabled)
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* (Array) items - initial items of ver
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* (only used if roster versioning is enabled)
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* In browser context you can use sessionStorage
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* to store your roster in json (JSON.stringify())
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*/
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get: function(userCallback, ver, items)
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{
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var attrs = {xmlns: Strophe.NS.ROSTER};
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this.items = [];
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if (this.supportVersioning())
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{
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// empty rev because i want an rev attribute in the result
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attrs.ver = ver || '';
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this.items = items || [];
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}
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var iq = $iq({type: 'get', 'id' : this._connection.getUniqueId('roster')}).c('query', attrs);
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return this._connection.sendIQ(iq,
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this._onReceiveRosterSuccess.bind(this, userCallback),
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this._onReceiveRosterError.bind(this, userCallback));
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},
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/** Function: registerCallback
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* register callback on roster (presence and iq)
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*
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* Parameters:
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* (Function) call_back
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*/
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registerCallback: function(call_back)
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{
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this._callbacks.push(call_back);
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},
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/** Function: findItem
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* Find item by JID
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*
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* Parameters:
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* (String) jid
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*/
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findItem : function(jid)
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{
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for (var i = 0; i < this.items.length; i++)
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{
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if (this.items[i] && this.items[i].jid == jid)
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{
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return this.items[i];
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}
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}
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return false;
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},
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/** Function: removeItem
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* Remove item by JID
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*
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* Parameters:
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* (String) jid
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*/
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removeItem : function(jid)
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{
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for (var i = 0; i < this.items.length; i++)
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{
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if (this.items[i] && this.items[i].jid == jid)
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{
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this.items.splice(i, 1);
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return true;
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}
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}
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return false;
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},
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/** Function: subscribe
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* Subscribe presence
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*
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* Parameters:
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* (String) jid
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* (String) message (optional)
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* (String) nick (optional)
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*/
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subscribe: function(jid, message, nick) {
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var pres = $pres({to: jid, type: "subscribe"});
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if (message && message !== "") {
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pres.c("status").t(message);
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}
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if (nick && nick !== "") {
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pres.c('nick', {'xmlns': Strophe.NS.NICK}).t(nick);
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}
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this._connection.send(pres);
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},
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/** Function: unsubscribe
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* Unsubscribe presence
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*
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* Parameters:
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* (String) jid
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* (String) message
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*/
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unsubscribe: function(jid, message)
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{
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var pres = $pres({to: jid, type: "unsubscribe"});
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if (message && message != "")
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pres.c("status").t(message);
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this._connection.send(pres);
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},
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/** Function: authorize
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* Authorize presence subscription
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*
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* Parameters:
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* (String) jid
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* (String) message
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*/
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authorize: function(jid, message)
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{
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var pres = $pres({to: jid, type: "subscribed"});
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if (message && message != "")
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pres.c("status").t(message);
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this._connection.send(pres);
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},
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/** Function: unauthorize
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* Unauthorize presence subscription
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*
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* Parameters:
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* (String) jid
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* (String) message
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*/
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unauthorize: function(jid, message)
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{
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var pres = $pres({to: jid, type: "unsubscribed"});
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if (message && message != "")
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pres.c("status").t(message);
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this._connection.send(pres);
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},
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/** Function: add
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* Add roster item
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*
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* Parameters:
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* (String) jid - item jid
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* (String) name - name
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* (Array) groups
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* (Function) call_back
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*/
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add: function(jid, name, groups, call_back)
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{
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var iq = $iq({type: 'set'}).c('query', {xmlns: Strophe.NS.ROSTER}).c('item', {jid: jid,
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name: name});
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for (var i = 0; i < groups.length; i++)
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{
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iq.c('group').t(groups[i]).up();
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}
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this._connection.sendIQ(iq, call_back, call_back);
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},
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/** Function: update
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* Update roster item
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*
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* Parameters:
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* (String) jid - item jid
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* (String) name - name
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* (Array) groups
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* (Function) call_back
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*/
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update: function(jid, name, groups, call_back)
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{
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var item = this.findItem(jid);
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if (!item)
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{
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throw "item not found";
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}
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var newName = name || item.name;
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var newGroups = groups || item.groups;
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var iq = $iq({type: 'set'}).c('query', {xmlns: Strophe.NS.ROSTER}).c('item', {jid: item.jid,
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name: newName});
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for (var i = 0; i < newGroups.length; i++)
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{
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iq.c('group').t(newGroups[i]).up();
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}
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return this._connection.sendIQ(iq, call_back, call_back);
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},
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/** Function: remove
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* Remove roster item
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*
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* Parameters:
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* (String) jid - item jid
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* (Function) call_back
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*/
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remove: function(jid, call_back)
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{
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var item = this.findItem(jid);
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if (!item)
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{
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throw "item not found";
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}
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var iq = $iq({type: 'set'}).c('query', {xmlns: Strophe.NS.ROSTER}).c('item', {jid: item.jid,
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subscription: "remove"});
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this._connection.sendIQ(iq, call_back, call_back);
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},
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/** PrivateFunction: _onReceiveRosterSuccess
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*
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*/
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_onReceiveRosterSuccess: function(userCallback, stanza)
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{
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this._updateItems(stanza);
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userCallback(this.items);
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},
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/** PrivateFunction: _onReceiveRosterError
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*
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*/
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_onReceiveRosterError: function(userCallback, stanza)
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{
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userCallback(this.items);
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},
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/** PrivateFunction: _onReceivePresence
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* Handle presence
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*/
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_onReceivePresence : function(presence)
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{
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// TODO: from is optional
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var jid = presence.getAttribute('from');
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var from = Strophe.getBareJidFromJid(jid);
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var item = this.findItem(from);
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// not in roster
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if (!item)
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{
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return true;
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}
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var type = presence.getAttribute('type');
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if (type == 'unavailable')
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{
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delete item.resources[Strophe.getResourceFromJid(jid)];
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}
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else if (!type)
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{
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// TODO: add timestamp
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item.resources[Strophe.getResourceFromJid(jid)] = {
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show : (presence.getElementsByTagName('show').length != 0) ? Strophe.getText(presence.getElementsByTagName('show')[0]) : "",
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status : (presence.getElementsByTagName('status').length != 0) ? Strophe.getText(presence.getElementsByTagName('status')[0]) : "",
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priority : (presence.getElementsByTagName('priority').length != 0) ? Strophe.getText(presence.getElementsByTagName('priority')[0]) : ""
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};
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}
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else
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{
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// Stanza is not a presence notification. (It's probably a subscription type stanza.)
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return true;
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}
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this._call_backs(this.items, item);
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return true;
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},
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/** PrivateFunction: _call_backs
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*
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*/
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_call_backs : function(items, item)
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{
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for (var i = 0; i < this._callbacks.length; i++) // [].forEach my love ...
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{
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this._callbacks[i](items, item);
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}
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},
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/** PrivateFunction: _onReceiveIQ
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* Handle roster push.
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*/
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_onReceiveIQ : function(iq)
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{
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var id = iq.getAttribute('id');
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var from = iq.getAttribute('from');
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// Receiving client MUST ignore stanza unless it has no from or from = user's JID.
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if (from && from != "" && from != this._connection.jid && from != Strophe.getBareJidFromJid(this._connection.jid))
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return true;
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var iqresult = $iq({type: 'result', id: id, from: this._connection.jid});
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this._connection.send(iqresult);
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this._updateItems(iq);
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return true;
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},
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/** PrivateFunction: _updateItems
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* Update items from iq
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*/
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_updateItems : function(iq)
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{
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var query = iq.getElementsByTagName('query');
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if (query.length != 0)
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{
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this.ver = query.item(0).getAttribute('ver');
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var self = this;
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Strophe.forEachChild(query.item(0), 'item',
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function (item)
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{
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self._updateItem(item);
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}
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);
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}
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this._call_backs(this.items);
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},
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/** PrivateFunction: _updateItem
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* Update internal representation of roster item
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*/
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_updateItem : function(item)
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{
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var jid = item.getAttribute("jid");
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var name = item.getAttribute("name");
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var subscription = item.getAttribute("subscription");
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var ask = item.getAttribute("ask");
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var groups = [];
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Strophe.forEachChild(item, 'group',
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function(group)
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{
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groups.push(Strophe.getText(group));
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}
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);
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if (subscription == "remove")
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{
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this.removeItem(jid);
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return;
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}
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var item = this.findItem(jid);
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if (!item)
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{
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this.items.push({
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name : name,
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jid : jid,
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subscription : subscription,
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ask : ask,
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groups : groups,
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resources : {}
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});
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}
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else
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{
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item.name = name;
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item.subscription = subscription;
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item.ask = ask;
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item.groups = groups;
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}
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}
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});
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