Defined (1)

The class is defined in the following location(s).

/vendor/yoast/api-libs/google/auth/Google_PemVerifier.php  

class Yoast_Google_PemVerifier extends Yoast_Google_Verifier { 
  private $publicKey; 
 
  /** 
   * Constructs a verifier from the supplied PEM-encoded certificate. 
   * 
   * $pem: a PEM encoded certificate (not a file). 
   * @param $pem 
   * @throws Yoast_Google_AuthException 
   * @throws Yoast_Google_Exception 
   */ 
  function __construct($pem) { 
    if (!function_exists('openssl_x509_read')) { 
      throw new Yoast_Google_Exception('Google API PHP client needs the openssl PHP extension'); 
    } 
    $this->publicKey = openssl_x509_read($pem); 
    if (!$this->publicKey) { 
      throw new Yoast_Google_AuthException("Unable to parse PEM: $pem"); 
    } 
  } 
 
  function __destruct() { 
    if ($this->publicKey) { 
      openssl_x509_free($this->publicKey); 
    } 
  } 
 
  /** 
   * Verifies the signature on data. 
   * 
   * Returns true if the signature is valid, false otherwise. 
   * @param $data 
   * @param $signature 
   * @throws Yoast_Google_AuthException 
   * @return bool 
   */ 
  function verify($data, $signature) { 
    $status = openssl_verify($data, $signature, $this->publicKey, "sha256"); 
    if ($status === -1) { 
      throw new Yoast_Google_AuthException('Signature verification error: ' . openssl_error_string()); 
    } 
    return $status === 1; 
  } 
}