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refs #7163
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Johannes Meyer
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Sep 24, 2014
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<?php | ||
// {{{ICINGA_LICENSE_HEADER}}} | ||
// {{{ICINGA_LICENSE_HEADER}}} | ||
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namespace Icinga\Web\Form\Validator; | ||
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use Zend_Validate_Abstract; | ||
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/** | ||
* 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; | ||
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/** | ||
* 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_NOT_FOUND' => t('Cannot validate token, file could not be opened or does not exist.'), | ||
'TOKEN_FILE_EMPTY' => t('Cannot validate token, file is empty. Please define a token.'), | ||
'TOKEN_FILE_PUBLIC' => t('Cannot validate token, file is publicly readable.'), | ||
'TOKEN_INVALID' => t('Invalid token supplied.') | ||
); | ||
} | ||
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/** | ||
* 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) | ||
{ | ||
$tokenStats = stat($this->tokenPath); | ||
if (($tokenStats['mode'] & 4) === 4) { | ||
$this->_error('TOKEN_FILE_PUBLIC'); | ||
return false; | ||
} | ||
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$expectedToken = @file_get_contents($this->tokenPath); | ||
if ($expectedToken === false) { | ||
$this->_error('TOKEN_FILE_NOT_FOUND'); | ||
return false; | ||
} | ||
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$expectedToken = trim($expectedToken); | ||
if (empty($expectedToken)) { | ||
$this->_error('TOKEN_FILE_EMPTY'); | ||
return false; | ||
} elseif ($value !== $expectedToken) { | ||
$this->_error('TOKEN_INVALID'); | ||
return false; | ||
} | ||
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return true; | ||
} | ||
} | ||
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