inc/pocheTool.class.php

   1 <?php
   2 /**
   3  * poche, a read it later open source system
   4  *
   5  * @category   poche
   6  * @author     Nicolas Lœuillet <support@inthepoche.com>
   7  * @copyright  2013
   8  * @license    http://www.wtfpl.net/ see COPYING file
   9  */
  10
  11 class pocheTools
  12 {
  13     public static function initPhp()
  14     {
  15         define('START_TIME', microtime(true));
  16
  17         if (phpversion() < 5) {
  18             die(_('Oops, it seems you don\'t have PHP 5.'));
  19         }
  20
  21         error_reporting(E_ALL);
  22
  23         function stripslashesDeep($value) {
  24             return is_array($value)
  25                 ? array_map('stripslashesDeep', $value)
  26                 : stripslashes($value);
  27         }
  28
  29         if (get_magic_quotes_gpc()) {
  30             $_POST = array_map('stripslashesDeep', $_POST);
  31             $_GET = array_map('stripslashesDeep', $_GET);
  32             $_COOKIE = array_map('stripslashesDeep', $_COOKIE);
  33         }
  34
  35         ob_start();
  36         register_shutdown_function('ob_end_flush');
  37     }
  38
  39     public static function isUrl($url)
  40     {
  41         // http://neo22s.com/check-if-url-exists-and-is-online-php/
  42         $pattern='|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i';
  43
  44         return preg_match($pattern, $url);
  45     }
  46
  47     public static function getUrl()
  48     {
  49         $https = (!empty($_SERVER['HTTPS'])
  50                     && (strtolower($_SERVER['HTTPS']) == 'on'))
  51             || (isset($_SERVER["SERVER_PORT"])
  52                     && $_SERVER["SERVER_PORT"] == '443'); // HTTPS detection.
  53         $serverport = (!isset($_SERVER["SERVER_PORT"])
  54             || $_SERVER["SERVER_PORT"] == '80'
  55             || ($https && $_SERVER["SERVER_PORT"] == '443')
  56             ? '' : ':' . $_SERVER["SERVER_PORT"]);
  57
  58         $scriptname = str_replace('/index.php', '/', $_SERVER["SCRIPT_NAME"]);
  59
  60         if (!isset($_SERVER["SERVER_NAME"])) {
  61             return $scriptname;
  62         }
  63
  64         return 'http' . ($https ? 's' : '') . '://'
  65             . $_SERVER["SERVER_NAME"] . $serverport . $scriptname;
  66     }
  67
  68     public static function renderJson($data)
  69     {
  70         header('Cache-Control: no-cache, must-revalidate');
  71         header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
  72         header('Content-type: application/json; charset=UTF-8');
  73
  74         echo json_encode($data);
  75         exit();
  76     }
  77
  78     public static function redirect($rurl = '')
  79     {
  80         if ($rurl === '') {
  81             $rurl = (empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']);
  82             if (isset($_POST['returnurl'])) {
  83                 $rurl = $_POST['returnurl'];
  84             }
  85         }
  86
  87         // prevent loop
  88         if (empty($rurl) || parse_url($rurl, PHP_URL_QUERY) === $_SERVER['QUERY_STRING']) {
  89             $rurl = pocheTool::getUrl();
  90         }
  91
  92         if (substr($rurl, 0, 1) !== '?') {
  93             $ref = pocheTool::getUrl();
  94             if (substr($rurl, 0, strlen($ref)) !== $ref) {
  95                 $rurl = $ref;
  96             }
  97         }
  98         header('Location: '.$rurl);
  99         exit();
 100     }
 101 }