tests/utils/ReferenceSessionIdHashes.php

   1 <?php
   2 /**
   3  * Testing the untestable - Session ID generation
   4  */
   5 class ReferenceSessionIdHashes
   6 {
   7     // Session ID hashes
   8     protected static $sidHashes = null;
   9
  10     /**
  11      * Generates session ID hashes for all algorithms & bit representations
  12      */
  13     public static function genAllHashes()
  14     {
  15         foreach (hash_algos() as $algo) {
  16             self::$sidHashes[$algo] = array();
  17
  18             foreach (array(4, 5, 6) as $bpc) {
  19                 self::$sidHashes[$algo][$bpc] = self::genSidHash($algo, $bpc);
  20             }
  21         }
  22     }
  23
  24     /**
  25      * Generates a session ID for a given hash algorithm and bit representation
  26      *
  27      * @param string $function           name of the hash function
  28      * @param int    $bits_per_character representation type
  29      *
  30      * @return string the generated session ID
  31      */
  32     protected static function genSidHash($function, $bits_per_character)
  33     {
  34         if (session_id()) {
  35             session_destroy();
  36         }
  37
  38         ini_set('session.hash_function', $function);
  39         ini_set('session.hash_bits_per_character', $bits_per_character);
  40
  41         session_start();
  42         return session_id();
  43     }
  44
  45     /**
  46      * Returns the reference hash array
  47      *
  48      * @return array session IDs generated for all available algorithms and bit
  49      *               representations
  50      */
  51     public static function getHashes()
  52     {
  53         return self::$sidHashes;
  54     }
  55 }