/**
* Wrapper around unserialize() that converts syntax errors to exceptions.
*
* @param string $input Serialized string
*
* @return mixed
*
* @throws SyntaxError If there was an error unserializing the string
*/
function unserialize($input)
{
static $exceptionFactory;
$currentHandler = null;
if (null === $exceptionFactory) {
$exceptionFactory = new SyntaxErrorFactory();
}
if (defined('HHVM_VERSION')) {
// @codeCoverageIgnoreStart
$errorHandler = function ($code, $message, $file, $line) use($exceptionFactory, &$currentHandler, $input) {
if ($code === E_NOTICE) {
throw $exceptionFactory->create($input, $message);
}
if ($currentHandler) {
return call_user_func_array($currentHandler, func_get_args());
}
return false;
};
} else {
// @codeCoverageIgnoreEnd
static $errorHandler;
if (!$errorHandler) {
$errorHandler = function ($code, $message, $file, $line) use($exceptionFactory, &$currentHandler) {
if ($code === E_NOTICE) {
$e = new \ErrorException($message, $code, 0, $file, $line);
throw $exceptionFactory->createFromErrorException($e);
}
if ($currentHandler) {
return call_user_func_array($currentHandler, func_get_args());
}
// @codeCoverageIgnoreStart
return false;
// @codeCoverageIgnoreEnd
};
}
}
$currentHandler = set_error_handler($errorHandler);
try {
$result = \unserialize($input);
if ($result === false && $input !== 'b:0;') {
throw new UnknownException($input, 'Unknown error was encountered');
}
} catch (\Exception $e) {
throw $e;
} finally {
// Ensure the error handler is restored.
restore_error_handler();
}
return $result;
}
/**
* @dataProvider dataCreate
*/
public function testCreate($message, $type, $expectedMessage, $expectedOffset = null)
{
$input = serialize('foobar');
$previous = new \Exception();
$factory = new SyntaxErrorFactory();
$exception = $factory->create($input, $message, $previous);
$this->assertInstanceOf('Exception', $exception);
$this->assertInstanceOf('Cs278\\SerializationHelpers\\Exception\\Exception', $exception);
$this->assertInstanceOf('Cs278\\SerializationHelpers\\Exception\\SyntaxError', $exception);
$this->assertInstanceOf("Cs278\\SerializationHelpers\\Exception\\SyntaxError\\{$type}Exception", $exception);
$this->assertSame($expectedMessage, $exception->getMessage());
$this->assertSame($previous, $exception->getPrevious());
$this->assertSame($input, $exception->getInput());
if (null !== $expectedOffset) {
$this->assertTrue(method_exists($exception, 'getOffset'));
$this->assertSame($expectedOffset, $exception->getOffset());
}
}
