class LingotekOAuthSignatureMethod_MD5 in Lingotek Translation 7.7

Hierarchy

• class \LingotekOAuthSignatureMethod
  • class \LingotekOAuthSignatureMethod_MD5

File

lib/oauth-php/library/signature_method/LingotekOAuthSignatureMethod_MD5.php, line 36

class LingotekOAuthSignatureMethod_MD5 extends LingotekOAuthSignatureMethod {
  public function name() {
    return 'MD5';
  }

  /**
   * Calculate the signature using MD5
   * Binary md5 digest, as distinct from PHP's built-in hexdigest.
   * This function is copyright Andy Smith, 2007.
   *
   * @param LingotekOAuthRequest request
   * @param string base_string
   * @param string consumer_secret
   * @param string token_secret
   * @return string
   */
  function signature($request, $base_string, $consumer_secret, $token_secret) {

    // $string = '&'.$request->urlencode($consumer_secret).'&'.$request->urlencode($token_secret); Not being used
    $md5 = md5($base_string);
    $bin = '';
    for ($i = 0; $i < strlen($md5); $i += 2) {
      $bin .= chr(hexdec($md5[$i + 1]) + hexdec($md5[$i]) * 16);
    }
    return $request
      ->urlencode(base64_encode($bin));
  }

  /**
   * Check if the request signature corresponds to the one calculated for the request.
   *
   * @param LingotekOAuthRequest request
   * @param string base_string	data to be signed, usually the base string, can be a request body
   * @param string consumer_secret
   * @param string token_secret
   * @param string signature		from the request, still urlencoded
   * @return string
   */
  public function verify($request, $base_string, $consumer_secret, $token_secret, $signature) {
    $a = $request
      ->urldecode($signature);
    $b = $request
      ->urldecode($this
      ->signature($request, $base_string, $consumer_secret, $token_secret));

    // We have to compare the decoded values
    $valA = base64_decode($a);
    $valB = base64_decode($b);

    // Crude binary comparison
    return rawurlencode($valA) == rawurlencode($valB);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
LingotekOAuthSignatureMethod_MD5::name	public	function	* Return the name of this signature * * Overrides LingotekOAuthSignatureMethod::name
LingotekOAuthSignatureMethod_MD5::signature		function	* Calculate the signature using MD5 * Binary md5 digest, as distinct from PHP's built-in hexdigest. * This function is copyright Andy Smith, 2007. * * Overrides LingotekOAuthSignatureMethod::signature
LingotekOAuthSignatureMethod_MD5::verify	public	function	* Check if the request signature corresponds to the one calculated for the request. * * Overrides LingotekOAuthSignatureMethod::verify