[Summary view] [Print] [Text view]

   1  <?php
   2  
   3  /** This file is part of KCFinder project
   4    *
   5    *      @desc Path helper class
   6    *   @package KCFinder
   7    *   @version 2.21
   8    *    @author Pavel Tzonkov <[email protected]>
   9    * @copyright 2010 KCFinder Project
  10    *   @license http://www.opensource.org/licenses/gpl-2.0.php GPLv2
  11    *   @license http://www.opensource.org/licenses/lgpl-2.1.php LGPLv2
  12    *      @link http://kcfinder.sunhater.com
  13    */
  14  
  15  class path {
  16  
  17    /** Get the absolute URL path of the given one. Returns FALSE if the URL
  18      * is not valid or the current directory cannot be resolved (getcwd())
  19      * @param string $path
  20      * @return string */
  21  
  22      static function rel2abs_url($path) {
  23          //added so absolute url's used instead of url's relative to server's root.
  24          require  '../config.inc.php';
  25          $return = $site_URL."/$path";
  26  
  27          return $return;
  28      }
  29  
  30    /** Resolve full filesystem path of given URL. Returns FALSE if the URL
  31      * cannot be resolved
  32      * @param string $url
  33      * @return string */
  34  
  35      static function url2fullPath($url) {
  36          $url = self::normalize($url);
  37  
  38          $uri = isset($_SERVER['SCRIPT_NAME'])
  39              ? $_SERVER['SCRIPT_NAME'] : (isset($_SERVER['PHP_SELF'])
  40              ? $_SERVER['PHP_SELF']
  41              : false);
  42  
  43          $uri = self::normalize($uri);
  44  
  45          if (substr($url, 0, 1) !== "/") {
  46              if ($uri === false) return false;
  47              $url = dirname($uri) . "/$url";
  48          }
  49  
  50          if (isset($_SERVER['DOCUMENT_ROOT'])) {
  51              return self::normalize($_SERVER['DOCUMENT_ROOT'] . "/$url");
  52  
  53          } else {
  54              if ($uri === false) return false;
  55  
  56              if (isset($_SERVER['SCRIPT_FILENAME'])) {
  57                  $scr_filename = self::normalize($_SERVER['SCRIPT_FILENAME']);
  58                  return self::normalize(substr($scr_filename, 0, -strlen($uri)) . "/$url");
  59              }
  60  
  61              $count = count(explode('/', $uri)) - 1;
  62              for ($i = 0, $chdir = ""; $i < $count; $i++)
  63                  $chdir .= "../";
  64              $chdir = self::normalize($chdir);
  65  
  66              $dir = getcwd();
  67              if (($dir === false) || !@chdir($chdir))
  68                  return false;
  69              $rdir = getcwd();
  70              chdir($dir);
  71              return ($rdir !== false) ? self::normalize($rdir . "/$url") : false;
  72          }
  73      }
  74  
  75    /** Normalize the given path. On Windows servers backslash will be replaced
  76      * with slash. Remobes unnecessary doble slashes and double dots. Removes
  77      * last slash if it exists. Examples:
  78      * path::normalize("C:\\any\\path\\") returns "C:/any/path"
  79      * path::normalize("/your/path/..//home/") returns "/your/home"
  80      * @param string $path
  81      * @return string */
  82  
  83      static function normalize($path) {
  84          if (strtoupper(substr(PHP_OS, 0, 3)) == "WIN") {
  85              $path = preg_replace('/([^\\\])\\\([^\\\])/', "$1/$2", $path);
  86              if (substr($path, -1) == "\\") $path = substr($path, 0, -1);
  87              if (substr($path, 0, 1) == "\\") $path = "/" . substr($path, 1);
  88          }
  89  
  90          $path = preg_replace('/\/+/s', "/", $path);
  91  
  92          $path = "/$path";
  93          if (substr($path, -1) != "/")
  94              $path .= "/";
  95  
  96          $expr = '/\/([^\/]{1}|[^\.\/]{2}|[^\/]{3,})\/\.\.\//s';
  97          while (preg_match($expr, $path))
  98              $path = preg_replace($expr, "/", $path);
  99  
 100          $path = substr($path, 0, -1);
 101          $path = substr($path, 1);
 102          return $path;
 103      }
 104  
 105    /** Encode URL Path
 106      * @param string $path
 107      * @return string */
 108  
 109      static function urlPathEncode($path) {
 110          $path = self::normalize($path);
 111          $encoded = "";
 112          foreach (explode("/", $path) as $dir)
 113              $encoded .= rawurlencode($dir) . "/";
 114          $encoded = substr($encoded, 0, -1);
 115          return $encoded;
 116      }
 117  
 118    /** Decode URL Path
 119      * @param string $path
 120      * @return string */
 121  
 122      static function urlPathDecode($path) {
 123          $path = self::normalize($path);
 124          $decoded = "";
 125          foreach (explode("/", $path) as $dir)
 126              $decoded .= rawurldecode($dir) . "/";
 127          $decoded = substr($decoded, 0, -1);
 128          return $decoded;
 129      }
 130  }
 131  
 132  ?>