<?php
/**
 * VFM - veno file manager: ajax/avatar.php
 *
 * Save a new avatar image
 *
 * PHP version >= 5.3
 *
 * @category  PHP
 * @package   VenoFileManager
 * @author    Nicola Franchini <support@veno.it>
 * @copyright 2013 Nicola Franchini
 * @license   Exclusively sold on CodeCanyon
 * @link      http://filemanager.veno.it/
 */
if (!isset($_SERVER['HTTP_X_REQUESTED_WITH']) 
    || (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) !== 'xmlhttprequest')
) {
    exit;
}
/**
 * Create a thumb from the uploaded image canvas
 *
 * @param string  $base64_string base64 string file
 * @param boolean $output_file   final file
 *
 * @return null/$new_image
 */
function base64ToJpg($base64_string, $output_file) 
{
    $ifp = fopen($output_file, "wb"); 
    $data = explode(',', $base64_string);
    fwrite($ifp, base64_decode($data[1])); 
    fclose($ifp);
}

$relativepath = dirname(__DIR__). '/_content/avatars';
if (!is_dir($relativepath)) {
    mkdir($relativepath, 0755);         
}

$postimg = filter_input(INPUT_POST, 'imgData', FILTER_SANITIZE_SPECIAL_CHARS);
$imgname = filter_input(INPUT_POST, 'imgName', FILTER_SANITIZE_SPECIAL_CHARS);

$relative = $relativepath.'/'.$imgname.'.png';

if ($postimg) {
	$finalavatar = 'vfm-admin/_content/avatars/'.$imgname.'.png';
	base64ToJpg($postimg, $relative);
} else {
	if (file_exists($relative)) {
		unlink($relative);
	}
	$finalavatar = false;
}
echo $finalavatar;