Viewing file:  Assertion.php (1.92 KB) -rwxrwxr-x
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<?php
/**
* Class for creating exceptions from assertion failures.
*
* @author Olav Morken, UNINETT AS.
* @package simpleSAMLphp
* @version $Id$
*/
class SimpleSAML_Error_Assertion extends SimpleSAML_Error_Exception {
/**
* The assertion which failed, or NULL if only an expression was passed to the
* assert-function.
*/
private $assertion;
/**
* Constructor for the assertion exception.
*
* Should only be called from the onAssertion handler.
*
* @param string|NULL $assertion The assertion which failed, or NULL if the assert-function was
* given an expression.
*/
public function __construct($assertion = NULL) {
assert('is_null($assertion) || is_string($assertion)');
$msg = 'Assertion failed: ' . var_export($assertion, TRUE);
parent::__construct($msg);
$this->assertion = $assertion;
}
/**
* Retrieve the assertion which failed.
*
* @return string|NULL The assertion which failed, or NULL if the assert-function was called with an expression.
*/
public function getAssertion() {
return $this->assertion;
}
/**
* Install this assertion handler.
*
* This function will register this assertion handler. If will not enable assertions if they are
* disabled.
*/
public static function installHandler() {
assert_options(ASSERT_WARNING, 0);
assert_options(ASSERT_QUIET_EVAL, 0);
assert_options(ASSERT_CALLBACK, array('SimpleSAML_Error_Assertion', 'onAssertion'));
}
/**
* Handle assertion.
*
* This function handles an assertion.
*
* @param string $file The file assert was called from.
* @param int $line The line assert was called from.
* @param mixed $message The expression which was passed to the assert-function.
*/
public static function onAssertion($file, $line, $message) {
if(!empty($message)) {
$exception = new self($message);
} else {
$exception = new self();
}
$exception->logError();
}
}
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