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sources/3rdparty/sabre/dav/lib/Sabre/DAV/URLUtil.php 3.15 KB
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  <?php
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  namespace Sabre\DAV;
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  /**
   * URL utility class
   *
   * This class provides methods to deal with encoding and decoding url (percent encoded) strings.
   *
   * It was not possible to use PHP's built-in methods for this, because some clients don't like
   * encoding of certain characters.
   *
   * Specifically, it was found that GVFS (gnome's webdav client) does not like encoding of ( and
   * ). Since these are reserved, but don't have a reserved meaning in url, these characters are
   * kept as-is.
   *
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   * It was also discovered that versions of the SOGO connector for thunderbird
   * has issues with urlencoded colons.
   *
   * @copyright Copyright (C) 2007-2014 fruux GmbH (https://fruux.com/).
   * @author Evert Pot (http://evertpot.com/)
   * @license http://sabre.io/license/ Modified BSD License
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   */
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  class URLUtil {
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      /**
       * Encodes the path of a url.
       *
       * slashes (/) are treated as path-separators.
       *
       * @param string $path
       * @return string
       */
      static function encodePath($path) {
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          return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\)\/:])/',function($match) {
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              return '%'.sprintf('%02x',ord($match[0]));
  
          }, $path);
  
      }
  
      /**
       * Encodes a 1 segment of a path
       *
       * Slashes are considered part of the name, and are encoded as %2f
       *
       * @param string $pathSegment
       * @return string
       */
      static function encodePathSegment($pathSegment) {
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          return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\):])/',function($match) {
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              return '%'.sprintf('%02x',ord($match[0]));
  
          }, $pathSegment);
      }
  
      /**
       * Decodes a url-encoded path
       *
       * @param string $path
       * @return string
       */
      static function decodePath($path) {
  
          return self::decodePathSegment($path);
  
      }
  
      /**
       * Decodes a url-encoded path segment
       *
       * @param string $path
       * @return string
       */
      static function decodePathSegment($path) {
  
          $path = rawurldecode($path);
          $encoding = mb_detect_encoding($path, array('UTF-8','ISO-8859-1'));
  
          switch($encoding) {
  
              case 'ISO-8859-1' :
                  $path = utf8_encode($path);
  
          }
  
          return $path;
  
      }
  
      /**
       * Returns the 'dirname' and 'basename' for a path.
       *
       * The reason there is a custom function for this purpose, is because
       * basename() is locale aware (behaviour changes if C locale or a UTF-8 locale is used)
       * and we need a method that just operates on UTF-8 characters.
       *
       * In addition basename and dirname are platform aware, and will treat backslash (\) as a
       * directory separator on windows.
       *
       * This method returns the 2 components as an array.
       *
       * If there is no dirname, it will return an empty string. Any / appearing at the end of the
       * string is stripped off.
       *
       * @param string $path
       * @return array
       */
      static function splitPath($path) {
  
          $matches = array();
          if(preg_match('/^(?:(?:(.*)(?:\/+))?([^\/]+))(?:\/?)$/u',$path,$matches)) {
              return array($matches[1],$matches[2]);
          } else {
              return array(null,null);
          }
  
      }
  
  }