define(['jquery'], function ($) {

 return {
 read: function (file) {

 return file ? (new Promise(function (resolve) {

 var reader = new FileReader();

 reader.onload = function () {

 resolve( this.result );
 };

 reader.readAsDataURL( file );

 })) : Promise.reject('No file provided');
 },
 upload: function (URL, data, onChunk) {

 onChunk = (onChunk instanceof Function) && onChunk;

 var XHR = new XMLHttpRequest();

 return new Promise(function (resolve, reject) {

 XHR.onload = function () {

 var data = this.response || this.responseXML;

 if ((typeof data === 'string') && (data[0] === '{')) try {

 data = JSON.parse( data );

 } catch (error) { }

 resolve(data || this.responseText);
 };

 XHR.onerror = XHR.onabort = reject;

 XHR.upload.onprogress = function (event) {

 if ( event.lengthComputable )
 onChunk && onChunk.call(
 this, Math.round(event.loaded * 100 / event.total)
 );
 else
 reject( event );
 };

 XHR.open('POST', URL);

 XHR.send( data );
 });
 }
 };
});