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<?php
/* Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Setup\Web\Form\Validator;
use Exception;
use Zend_Validate_Abstract;
use Icinga\Util\File;
/**
* Validator that checks if a token matches with the contents of a corresponding token-file
*/
class TokenValidator extends Zend_Validate_Abstract
{
/**
* The path to the token file
*
* @var string
*/
protected $tokenPath;
/**
* Create a new TokenValidator
*
* @param string $tokenPath The path to the token-file
*/
public function __construct($tokenPath)
{
$this->tokenPath = $tokenPath;
$this->_messageTemplates = array(
'TOKEN_FILE_ERROR' => sprintf(
mt('setup', 'Cannot validate token: %s (%s)'),
$tokenPath,
'%value%'
),
'TOKEN_FILE_EMPTY' => sprintf(
mt('setup', 'Cannot validate token, file "%s" is empty. Please define a token.'),
$tokenPath
),
'TOKEN_INVALID' => mt('setup', 'Invalid token supplied.')
);
}
/**
* Validate the given token with the one in the token-file
*
* @param string $value The token to validate
* @param null $context The form context (ignored)
*
* @return bool
*/
public function isValid($value, $context = null)
{
try {
$file = new File($this->tokenPath);
$expectedToken = trim($file->fgets());
} catch (Exception $e) {
$msg = $e->getMessage();
$this->_error('TOKEN_FILE_ERROR', substr($msg, strpos($msg, ']: ') + 3));
return false;
}
if (empty($expectedToken)) {
$this->_error('TOKEN_FILE_EMPTY');
return false;
} elseif ($value !== $expectedToken) {
$this->_error('TOKEN_INVALID');
return false;
}
return true;
}
}
|
