inc/MyTool.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 MyTool
  12 {
  13     public static function initPhp()
  14     {
  15         define('START_TIME', microtime(true));
  16
  17         if (phpversion() < 5) {
  18             die("Argh 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, $url);
  45     }
  46
  47     public static function isEmail($email)
  48     {
  49         $pattern = "/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2, 4}$/i";
  50
  51         return (preg_match($pattern, $email));
  52     }
  53
  54     public static function formatBBCode($text)
  55     {
  56         $replace = array(
  57             '/\[m\](.+?)\[\/m\]/is'
  58             => '/* moderate */',
  59             '/\[b\](.+?)\[\/b\]/is'
  60             => '<strong>$1</strong>',
  61             '/\[i\](.+?)\[\/i\]/is'
  62             => '<em>$1</em>',
  63             '/\[s\](.+?)\[\/s\]/is'
  64             => '<del>$1</del>',
  65             '/\[u\](.+?)\[\/u\]/is'
  66             => '<span style="text-decoration: underline;">$1</span>',
  67             '/\[url\](.+?)\[\/url]/is'
  68             => '<a href="$1">$1</a>',
  69             '/\[url=(\w+:\/\/[^\]]+)\](.+?)\[\/url]/is'
  70             => '<a href="$1">$2</a>',
  71             '/\[quote\](.+?)\[\/quote\]/is'
  72             => '<blockquote>$1</blockquote>',
  73             '/\[code\](.+?)\[\/code\]/is'
  74             => '<code>$1</code>',
  75             '/\[([^[]+)\|([^[]+)\]/is'
  76             => '<a href="$2">$1</a>'
  77             );
  78         $text = preg_replace(
  79             array_keys($replace),
  80             array_values($replace),
  81             $text
  82         );
  83
  84         return $text;
  85     }
  86
  87     public static function formatText($text)
  88     {
  89         $text = preg_replace_callback(
  90             '/<code_html>(.*?)<\/code_html>/is',
  91             create_function(
  92                 '$matches',
  93                 'return htmlspecialchars($matches[1]);'
  94             ),
  95             $text
  96         );
  97         $text = preg_replace_callback(
  98             '/<code_php>(.*?)<\/code_php>/is',
  99             create_function(
 100                 '$matches',
 101                 'return highlight_string("<?php $matches[1] ?>", true);'
 102             ),
 103             $text
 104         );
 105         $text = preg_replace('/<br \/>/is', '', $text);
 106
 107         $text = preg_replace(
 108             '#(^|\s)([a-z]+://([^\s\w/]?[\w/])*)(\s|$)#im',
 109             '\\1<a href="\\2">\\2</a>\\4',
 110             $text
 111         );
 112         $text = preg_replace(
 113             '#(^|\s)wp:?([a-z]{2}|):([\w]+)#im',
 114             '\\1<a href="http://\\2.wikipedia.org/wiki/\\3">\\3</a>',
 115             $text
 116         );
 117         $text = str_replace(
 118             'http://.wikipedia.org/wiki/',
 119             'http://www.wikipedia.org/wiki/',
 120             $text
 121         );
 122         $text = str_replace('\wp:', 'wp:', $text);
 123         $text = str_replace('\http:', 'http:', $text);
 124         $text = MyTool::formatBBCode($text);
 125         $text = nl2br($text);
 126
 127         return $text;
 128     }
 129
 130     public static function getUrl()
 131     {
 132         $https = (!empty($_SERVER['HTTPS'])
 133                   && (strtolower($_SERVER['HTTPS']) == 'on'))
 134             || (isset($_SERVER["SERVER_PORT"])
 135                 && $_SERVER["SERVER_PORT"] == '443'); // HTTPS detection.
 136         $serverport = (!isset($_SERVER["SERVER_PORT"])
 137                        || $_SERVER["SERVER_PORT"] == '80'
 138                        || ($https && $_SERVER["SERVER_PORT"] == '443')
 139                        ? ''
 140                        : ':' . $_SERVER["SERVER_PORT"]);
 141
 142         $scriptname = str_replace('/index.php', '/', $_SERVER["SCRIPT_NAME"]);
 143
 144         if (!isset($_SERVER["SERVER_NAME"])) {
 145             return $scriptname;
 146         }
 147
 148         return 'http' . ($https ? 's' : '') . '://'
 149             . $_SERVER["SERVER_NAME"] . $serverport . $scriptname;
 150     }
 151
 152     public static function rrmdir($dir)
 153     {
 154         if (is_dir($dir) && ($d = @opendir($dir))) {
 155             while (($file = @readdir($d)) !== false) {
 156                 if ( $file == '.' || $file == '..' ) {
 157                     continue;
 158                 } else {
 159                     unlink($dir . '/' . $file);
 160                 }
 161             }
 162         }
 163     }
 164
 165     public static function humanBytes($bytes)
 166     {
 167         $siPrefix = array( 'bytes', 'KB', 'MB', 'GB', 'TB', 'EB', 'ZB', 'YB' );
 168         $base = 1024;
 169         $class = min((int) log($bytes, $base), count($siPrefix) - 1);
 170         $val = sprintf('%1.2f', $bytes / pow($base, $class));
 171
 172         return $val . ' ' . $siPrefix[$class];
 173     }
 174
 175     public static function returnBytes($val)
 176     {
 177         $val = trim($val);
 178         $last = strtolower($val[strlen($val)-1]);
 179         switch($last)
 180         {
 181         case 'g': $val *= 1024;
 182         case 'm': $val *= 1024;
 183         case 'k': $val *= 1024;
 184         }
 185
 186         return $val;
 187     }
 188
 189     public static function getMaxFileSize()
 190     {
 191         $sizePostMax = MyTool::returnBytes(ini_get('post_max_size'));
 192         $sizeUploadMax = MyTool::returnBytes(ini_get('upload_max_filesize'));
 193
 194         // Return the smaller of two:
 195         return min($sizePostMax, $sizeUploadMax);
 196     }
 197
 198     public static function smallHash($text)
 199     {
 200         $t = rtrim(base64_encode(hash('crc32', $text, true)), '=');
 201         // Get rid of characters which need encoding in URLs.
 202         $t = str_replace('+', '-', $t);
 203         $t = str_replace('/', '_', $t);
 204         $t = str_replace('=', '@', $t);
 205
 206         return $t;
 207     }
 208
 209     public static function renderJson($data)
 210     {
 211         header('Cache-Control: no-cache, must-revalidate');
 212         header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
 213         header('Content-type: application/json; charset=UTF-8');
 214
 215         echo json_encode($data);
 216         exit();
 217     }
 218
 219     public static function grabToLocal($url, $file, $force = false)
 220     {
 221         if ((!file_exists($file) || $force) && in_array('curl', get_loaded_extensions())){
 222             $ch = curl_init ($url);
 223             curl_setopt($ch, CURLOPT_HEADER, false);
 224             curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 225             curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 226             $raw = curl_exec($ch);
 227             if (curl_getinfo($ch, CURLINFO_HTTP_CODE) == 200) {
 228                 $fp = fopen($file, 'x');
 229                 fwrite($fp, $raw);
 230                 fclose($fp);
 231             }
 232             curl_close ($ch);
 233         }
 234     }
 235
 236     public static function redirect($rurl = '')
 237     {
 238         if ($rurl === '') {
 239             // if (!empty($_SERVER['HTTP_REFERER']) && strcmp(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_HOST),$_SERVER['SERVER_NAME'])==0)
 240             $rurl = (empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']);
 241             if (isset($_POST['returnurl'])) {
 242                 $rurl = $_POST['returnurl'];
 243             }
 244         }
 245
 246         // prevent loop
 247         if (empty($rurl) || parse_url($rurl, PHP_URL_QUERY) === $_SERVER['QUERY_STRING']) {
 248             $rurl = MyTool::getUrl();
 249         }
 250
 251         if (substr($rurl, 0, 1) !== '?') {
 252             $ref = MyTool::getUrl();
 253             if (substr($rurl, 0, strlen($ref)) !== $ref) {
 254                 $rurl = $ref;
 255             }
 256         }
 257         header('Location: '.$rurl);
 258         exit();
 259     }
 260
 261     public static function silence_errors($num, $str)
 262     {
 263 // No-op
 264     }
 265 }