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sources/3rdparty/Sabre/DAV/Auth/Backend/File.php 1.92 KB
03e52840d   Kload   Init
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  <?php
  
  /**
   * This is an authentication backend that uses a file to manage passwords.
   *
   * The backend file must conform to Apache's htdigest format
   *
   * @package Sabre
   * @subpackage DAV
   * @copyright Copyright (C) 2007-2013 Rooftop Solutions. All rights reserved.
   * @author Evert Pot (http://www.rooftopsolutions.nl/) 
   * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
   */
  class Sabre_DAV_Auth_Backend_File extends Sabre_DAV_Auth_Backend_AbstractDigest {
  
      /**
       * List of users
       *
       * @var array
       */
      protected $users = array();
  
      /**
       * Creates the backend object.
       *
       * If the filename argument is passed in, it will parse out the specified file fist.
       *
       * @param string|null $filename
       */
      public function __construct($filename=null) {
  
          if (!is_null($filename))
              $this->loadFile($filename);
  
      }
  
      /**
       * Loads an htdigest-formatted file. This method can be called multiple times if
       * more than 1 file is used.
       *
       * @param string $filename
       * @return void
       */
      public function loadFile($filename) {
  
          foreach(file($filename,FILE_IGNORE_NEW_LINES) as $line) {
  
              if (substr_count($line, ":") !== 2)
                  throw new Sabre_DAV_Exception('Malformed htdigest file. Every line should contain 2 colons');
  
              list($username,$realm,$A1) = explode(':',$line);
  
              if (!preg_match('/^[a-zA-Z0-9]{32}$/', $A1))
                  throw new Sabre_DAV_Exception('Malformed htdigest file. Invalid md5 hash');
  
              $this->users[$realm . ':' . $username] = $A1;
  
          }
  
      }
  
      /**
       * Returns a users' information
       *
       * @param string $realm
       * @param string $username
       * @return string
       */
      public function getDigestHash($realm, $username) {
  
          return isset($this->users[$realm . ':' . $username])?$this->users[$realm . ':' . $username]:false;
  
      }
  
  }