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<?php |
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Symfony\Component\Debug; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\Debug\Exception\FlattenException; |
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use Symfony\Component\Debug\Exception\OutOfMemoryException; |
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/** |
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* ExceptionHandler converts an exception to a Response object. |
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* |
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* It is mostly useful in debug mode to replace the default PHP/XDebug |
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* output with something prettier and more useful. |
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* |
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* As this class is mainly used during Kernel boot, where nothing is yet |
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* available, the Response content is always HTML. |
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* |
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* @author Fabien Potencier <[email protected]> |
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* @author Nicolas Grekas <[email protected]> |
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*/ |
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class ExceptionHandler |
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{ |
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private $debug; |
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private $charset; |
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private $handler; |
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private $caughtBuffer; |
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private $caughtLength; |
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private $fileLinkFormat; |
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public function __construct($debug = true, $charset = null, $fileLinkFormat = null) |
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{ |
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if (false !== strpos($charset, '%')) { |
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@trigger_error('Providing $fileLinkFormat as second argument to '.__METHOD__.' is deprecated since version 2.8 and will be unsupported in 3.0. Please provide it as third argument, after $charset.', E_USER_DEPRECATED); |
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// Swap $charset and $fileLinkFormat for BC reasons |
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$pivot = $fileLinkFormat; |
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$fileLinkFormat = $charset; |
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$charset = $pivot; |
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} |
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$this->debug = $debug; |
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$this->charset = $charset ?: ini_get('default_charset') ?: 'UTF-8'; |
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$this->fileLinkFormat = $fileLinkFormat ?: ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format'); |
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} |
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/** |
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* Registers the exception handler. |
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* |
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* @param bool $debug Enable/disable debug mode, where the stack trace is displayed |
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* @param string|null $charset The charset used by exception messages |
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* @param string|null $fileLinkFormat The IDE link template |
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* |
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* @return static |
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*/ |
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public static function register($debug = true, $charset = null, $fileLinkFormat = null) |
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{ |
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$handler = new static($debug, $charset, $fileLinkFormat); |
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$prev = set_exception_handler(array($handler, 'handle')); |
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if (is_array($prev) && $prev[0] instanceof ErrorHandler) { |
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restore_exception_handler(); |
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$prev[0]->setExceptionHandler(array($handler, 'handle')); |
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} |
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return $handler; |
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} |
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/** |
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* Sets a user exception handler. |
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* |
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* @param callable $handler An handler that will be called on Exception |
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* |
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* @return callable|null The previous exception handler if any |
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*/ |
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View Code Duplication |
public function setHandler($handler) |
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{ |
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if (null !== $handler && !is_callable($handler)) { |
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throw new \LogicException('The exception handler must be a valid PHP callable.'); |
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} |
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$old = $this->handler; |
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$this->handler = $handler; |
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return $old; |
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} |
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/** |
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* Sets the format for links to source files. |
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* |
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* @param string $format The format for links to source files |
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* |
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* @return string The previous file link format |
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*/ |
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public function setFileLinkFormat($format) |
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{ |
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$old = $this->fileLinkFormat; |
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$this->fileLinkFormat = $format; |
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return $old; |
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} |
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/** |
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* Sends a response for the given Exception. |
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* |
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* To be as fail-safe as possible, the exception is first handled |
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* by our simple exception handler, then by the user exception handler. |
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* The latter takes precedence and any output from the former is cancelled, |
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* if and only if nothing bad happens in this handling path. |
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*/ |
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public function handle(\Exception $exception) |
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{ |
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if (null === $this->handler || $exception instanceof OutOfMemoryException) { |
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$this->failSafeHandle($exception); |
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return; |
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} |
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$caughtLength = $this->caughtLength = 0; |
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ob_start(array($this, 'catchOutput')); |
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$this->failSafeHandle($exception); |
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while (null === $this->caughtBuffer && ob_end_flush()) { |
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// Empty loop, everything is in the condition |
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} |
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if (isset($this->caughtBuffer[0])) { |
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ob_start(array($this, 'cleanOutput')); |
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echo $this->caughtBuffer; |
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$caughtLength = ob_get_length(); |
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} |
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$this->caughtBuffer = null; |
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try { |
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call_user_func($this->handler, $exception); |
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$this->caughtLength = $caughtLength; |
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} catch (\Exception $e) { |
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if (!$caughtLength) { |
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// All handlers failed. Let PHP handle that now. |
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throw $exception; |
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} |
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} |
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} |
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/** |
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* Sends a response for the given Exception. |
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* |
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* If you have the Symfony HttpFoundation component installed, |
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* this method will use it to create and send the response. If not, |
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* it will fallback to plain PHP functions. |
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* |
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* @param \Exception $exception An \Exception instance |
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*/ |
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private function failSafeHandle(\Exception $exception) |
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{ |
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if (class_exists('Symfony\Component\HttpFoundation\Response', false) |
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&& __CLASS__ !== get_class($this) |
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&& ($reflector = new \ReflectionMethod($this, 'createResponse')) |
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&& __CLASS__ !== $reflector->class |
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) { |
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$response = $this->createResponse($exception); |
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$response->sendHeaders(); |
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$response->sendContent(); |
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@trigger_error(sprintf("The %s::createResponse method is deprecated since 2.8 and won't be called anymore when handling an exception in 3.0.", $reflector->class), E_USER_DEPRECATED); |
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return; |
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} |
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$this->sendPhpResponse($exception); |
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} |
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/** |
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* Sends the error associated with the given Exception as a plain PHP response. |
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* |
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* This method uses plain PHP functions like header() and echo to output |
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* the response. |
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* |
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* @param \Exception|FlattenException $exception An \Exception or FlattenException instance |
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*/ |
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public function sendPhpResponse($exception) |
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{ |
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if (!$exception instanceof FlattenException) { |
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$exception = FlattenException::create($exception); |
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} |
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if (!headers_sent()) { |
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header(sprintf('HTTP/1.0 %s', $exception->getStatusCode())); |
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foreach ($exception->getHeaders() as $name => $value) { |
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header($name.': '.$value, false); |
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} |
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header('Content-Type: text/html; charset='.$this->charset); |
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} |
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echo $this->decorate($this->getContent($exception), $this->getStylesheet($exception)); |
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} |
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/** |
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* Creates the error Response associated with the given Exception. |
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* |
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* @param \Exception|FlattenException $exception An \Exception or FlattenException instance |
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* |
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* @return Response A Response instance |
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* |
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* @deprecated since 2.8, to be removed in 3.0. |
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*/ |
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public function createResponse($exception) |
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{ |
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@trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED); |
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if (!$exception instanceof FlattenException) { |
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$exception = FlattenException::create($exception); |
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} |
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return Response::create($this->getHtml($exception), $exception->getStatusCode(), $exception->getHeaders())->setCharset($this->charset); |
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} |
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/** |
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* Gets the full HTML content associated with the given exception. |
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* |
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* @param \Exception|FlattenException $exception An \Exception or FlattenException instance |
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* |
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* @return string The HTML content as a string |
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*/ |
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public function getHtml($exception) |
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{ |
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if (!$exception instanceof FlattenException) { |
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$exception = FlattenException::create($exception); |
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} |
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return $this->decorate($this->getContent($exception), $this->getStylesheet($exception)); |
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} |
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/** |
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* Gets the HTML content associated with the given exception. |
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* |
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* @param FlattenException $exception A FlattenException instance |
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* |
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* @return string The content as a string |
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*/ |
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public function getContent(FlattenException $exception) |
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{ |
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switch ($exception->getStatusCode()) { |
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case 404: |
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$title = 'Sorry, the page you are looking for could not be found.'; |
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break; |
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default: |
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$title = 'Whoops, looks like something went wrong.'; |
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} |
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$content = ''; |
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if ($this->debug) { |
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try { |
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$count = count($exception->getAllPrevious()); |
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$total = $count + 1; |
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foreach ($exception->toArray() as $position => $e) { |
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$ind = $count - $position + 1; |
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$class = $this->formatClass($e['class']); |
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$message = nl2br($this->escapeHtml($e['message'])); |
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$content .= sprintf(<<<'EOF' |
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<h2 class="block_exception clear_fix"> |
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<span class="exception_counter">%d/%d</span> |
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<span class="exception_title">%s%s:</span> |
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<span class="exception_message">%s</span> |
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</h2> |
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<div class="block"> |
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<ol class="traces list_exception"> |
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EOF |
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, $ind, $total, $class, $this->formatPath($e['trace'][0]['file'], $e['trace'][0]['line']), $message); |
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foreach ($e['trace'] as $trace) { |
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$content .= ' <li>'; |
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if ($trace['function']) { |
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$content .= sprintf('at %s%s%s(%s)', $this->formatClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args'])); |
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} |
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if (isset($trace['file']) && isset($trace['line'])) { |
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$content .= $this->formatPath($trace['file'], $trace['line']); |
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} |
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$content .= "</li>\n"; |
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} |
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$content .= " </ol>\n</div>\n"; |
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} |
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} catch (\Exception $e) { |
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// something nasty happened and we cannot throw an exception anymore |
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if ($this->debug) { |
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$title = sprintf('Exception thrown when handling an exception (%s: %s)', get_class($e), $this->escapeHtml($e->getMessage())); |
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} else { |
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$title = 'Whoops, looks like something went wrong.'; |
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} |
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} |
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} |
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return <<<EOF |
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299
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<div id="sf-resetcontent" class="sf-reset"> |
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<h1>$title</h1> |
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$content |
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</div> |
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EOF; |
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} |
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/** |
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* Gets the stylesheet associated with the given exception. |
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* |
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* @param FlattenException $exception A FlattenException instance |
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* |
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* @return string The stylesheet as a string |
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*/ |
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public function getStylesheet(FlattenException $exception) |
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314
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{ |
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return <<<'EOF' |
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316
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.sf-reset { font: 11px Verdana, Arial, sans-serif; color: #333 } |
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.sf-reset .clear { clear:both; height:0; font-size:0; line-height:0; } |
|
318
|
|
|
.sf-reset .clear_fix:after { display:block; height:0; clear:both; visibility:hidden; } |
|
319
|
|
|
.sf-reset .clear_fix { display:inline-block; } |
|
320
|
|
|
.sf-reset * html .clear_fix { height:1%; } |
|
321
|
|
|
.sf-reset .clear_fix { display:block; } |
|
322
|
|
|
.sf-reset, .sf-reset .block { margin: auto } |
|
323
|
|
|
.sf-reset abbr { border-bottom: 1px dotted #000; cursor: help; } |
|
324
|
|
|
.sf-reset p { font-size:14px; line-height:20px; color:#868686; padding-bottom:20px } |
|
325
|
|
|
.sf-reset strong { font-weight:bold; } |
|
326
|
|
|
.sf-reset a { color:#6c6159; cursor: default; } |
|
327
|
|
|
.sf-reset a img { border:none; } |
|
328
|
|
|
.sf-reset a:hover { text-decoration:underline; } |
|
329
|
|
|
.sf-reset em { font-style:italic; } |
|
330
|
|
|
.sf-reset h1, .sf-reset h2 { font: 20px Georgia, "Times New Roman", Times, serif } |
|
331
|
|
|
.sf-reset .exception_counter { background-color: #fff; color: #333; padding: 6px; float: left; margin-right: 10px; float: left; display: block; } |
|
332
|
|
|
.sf-reset .exception_title { margin-left: 3em; margin-bottom: 0.7em; display: block; } |
|
333
|
|
|
.sf-reset .exception_message { margin-left: 3em; display: block; } |
|
334
|
|
|
.sf-reset .traces li { font-size:12px; padding: 2px 4px; list-style-type:decimal; margin-left:20px; } |
|
335
|
|
|
.sf-reset .block { background-color:#FFFFFF; padding:10px 28px; margin-bottom:20px; |
|
336
|
|
|
-webkit-border-bottom-right-radius: 16px; |
|
337
|
|
|
-webkit-border-bottom-left-radius: 16px; |
|
338
|
|
|
-moz-border-radius-bottomright: 16px; |
|
339
|
|
|
-moz-border-radius-bottomleft: 16px; |
|
340
|
|
|
border-bottom-right-radius: 16px; |
|
341
|
|
|
border-bottom-left-radius: 16px; |
|
342
|
|
|
border-bottom:1px solid #ccc; |
|
343
|
|
|
border-right:1px solid #ccc; |
|
344
|
|
|
border-left:1px solid #ccc; |
|
345
|
|
|
word-wrap: break-word; |
|
346
|
|
|
} |
|
347
|
|
|
.sf-reset .block_exception { background-color:#ddd; color: #333; padding:20px; |
|
348
|
|
|
-webkit-border-top-left-radius: 16px; |
|
349
|
|
|
-webkit-border-top-right-radius: 16px; |
|
350
|
|
|
-moz-border-radius-topleft: 16px; |
|
351
|
|
|
-moz-border-radius-topright: 16px; |
|
352
|
|
|
border-top-left-radius: 16px; |
|
353
|
|
|
border-top-right-radius: 16px; |
|
354
|
|
|
border-top:1px solid #ccc; |
|
355
|
|
|
border-right:1px solid #ccc; |
|
356
|
|
|
border-left:1px solid #ccc; |
|
357
|
|
|
overflow: hidden; |
|
358
|
|
|
word-wrap: break-word; |
|
359
|
|
|
} |
|
360
|
|
|
.sf-reset a { background:none; color:#868686; text-decoration:none; } |
|
361
|
|
|
.sf-reset a:hover { background:none; color:#313131; text-decoration:underline; } |
|
362
|
|
|
.sf-reset ol { padding: 10px 0; } |
|
363
|
|
|
.sf-reset h1 { background-color:#FFFFFF; padding: 15px 28px; margin-bottom: 20px; |
|
364
|
|
|
-webkit-border-radius: 10px; |
|
365
|
|
|
-moz-border-radius: 10px; |
|
366
|
|
|
border-radius: 10px; |
|
367
|
|
|
border: 1px solid #ccc; |
|
368
|
|
|
} |
|
369
|
|
|
EOF; |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
private function decorate($content, $css) |
|
373
|
|
|
{ |
|
374
|
|
|
return <<<EOF |
|
375
|
|
|
<!DOCTYPE html> |
|
376
|
|
|
<html> |
|
377
|
|
|
<head> |
|
378
|
|
|
<meta charset="{$this->charset}" /> |
|
379
|
|
|
<meta name="robots" content="noindex,nofollow" /> |
|
380
|
|
|
<style> |
|
381
|
|
|
/* Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html */ |
|
382
|
|
|
html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:text-top;}sub{vertical-align:text-bottom;}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;}input,textarea,select{*font-size:100%;}legend{color:#000;} |
|
383
|
|
|
|
|
384
|
|
|
html { background: #eee; padding: 10px } |
|
385
|
|
|
img { border: 0; } |
|
386
|
|
|
#sf-resetcontent { width:970px; margin:0 auto; } |
|
387
|
|
|
$css |
|
388
|
|
|
</style> |
|
389
|
|
|
</head> |
|
390
|
|
|
<body> |
|
391
|
|
|
$content |
|
392
|
|
|
</body> |
|
393
|
|
|
</html> |
|
394
|
|
|
EOF; |
|
395
|
|
|
} |
|
396
|
|
|
|
|
397
|
|
|
private function formatClass($class) |
|
398
|
|
|
{ |
|
399
|
|
|
$parts = explode('\\', $class); |
|
400
|
|
|
|
|
401
|
|
|
return sprintf('<abbr title="%s">%s</abbr>', $class, array_pop($parts)); |
|
402
|
|
|
} |
|
403
|
|
|
|
|
404
|
|
|
private function formatPath($path, $line) |
|
405
|
|
|
{ |
|
406
|
|
|
$path = $this->escapeHtml($path); |
|
407
|
|
|
$file = preg_match('#[^/\\\\]*$#', $path, $file) ? $file[0] : $path; |
|
408
|
|
|
|
|
409
|
|
|
if ($linkFormat = $this->fileLinkFormat) { |
|
410
|
|
|
$link = strtr($this->escapeHtml($linkFormat), array('%f' => $path, '%l' => (int) $line)); |
|
411
|
|
|
|
|
412
|
|
|
return sprintf(' in <a href="%s" title="Go to source">%s line %d</a>', $link, $file, $line); |
|
413
|
|
|
} |
|
414
|
|
|
|
|
415
|
|
|
return sprintf(' in <a title="%s line %3$d" ondblclick="var f=this.innerHTML;this.innerHTML=this.title;this.title=f;">%s line %d</a>', $path, $file, $line); |
|
416
|
|
|
} |
|
417
|
|
|
|
|
418
|
|
|
/** |
|
419
|
|
|
* Formats an array as a string. |
|
420
|
|
|
* |
|
421
|
|
|
* @param array $args The argument array |
|
422
|
|
|
* |
|
423
|
|
|
* @return string |
|
424
|
|
|
*/ |
|
425
|
|
|
private function formatArgs(array $args) |
|
426
|
|
|
{ |
|
427
|
|
|
$result = array(); |
|
428
|
|
|
foreach ($args as $key => $item) { |
|
429
|
|
|
if ('object' === $item[0]) { |
|
430
|
|
|
$formattedValue = sprintf('<em>object</em>(%s)', $this->formatClass($item[1])); |
|
431
|
|
|
} elseif ('array' === $item[0]) { |
|
432
|
|
|
$formattedValue = sprintf('<em>array</em>(%s)', is_array($item[1]) ? $this->formatArgs($item[1]) : $item[1]); |
|
433
|
|
|
} elseif ('string' === $item[0]) { |
|
434
|
|
|
$formattedValue = sprintf("'%s'", $this->escapeHtml($item[1])); |
|
435
|
|
|
} elseif ('null' === $item[0]) { |
|
436
|
|
|
$formattedValue = '<em>null</em>'; |
|
437
|
|
|
} elseif ('boolean' === $item[0]) { |
|
438
|
|
|
$formattedValue = '<em>'.strtolower(var_export($item[1], true)).'</em>'; |
|
439
|
|
|
} elseif ('resource' === $item[0]) { |
|
440
|
|
|
$formattedValue = '<em>resource</em>'; |
|
441
|
|
|
} else { |
|
442
|
|
|
$formattedValue = str_replace("\n", '', var_export($this->escapeHtml((string) $item[1]), true)); |
|
443
|
|
|
} |
|
444
|
|
|
|
|
445
|
|
|
$result[] = is_int($key) ? $formattedValue : sprintf("'%s' => %s", $key, $formattedValue); |
|
446
|
|
|
} |
|
447
|
|
|
|
|
448
|
|
|
return implode(', ', $result); |
|
449
|
|
|
} |
|
450
|
|
|
|
|
451
|
|
|
/** |
|
452
|
|
|
* Returns an UTF-8 and HTML encoded string. |
|
453
|
|
|
* |
|
454
|
|
|
* @deprecated since version 2.7, to be removed in 3.0. |
|
455
|
|
|
*/ |
|
456
|
|
|
protected static function utf8Htmlize($str) |
|
457
|
|
|
{ |
|
458
|
|
|
@trigger_error('The '.__METHOD__.' method is deprecated since version 2.7 and will be removed in 3.0.', E_USER_DEPRECATED); |
|
|
|
|
|
|
459
|
|
|
|
|
460
|
|
|
return htmlspecialchars($str, ENT_QUOTES | (\PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), 'UTF-8'); |
|
461
|
|
|
} |
|
462
|
|
|
|
|
463
|
|
|
/** |
|
464
|
|
|
* HTML-encodes a string. |
|
465
|
|
|
*/ |
|
466
|
|
|
private function escapeHtml($str) |
|
467
|
|
|
{ |
|
468
|
|
|
return htmlspecialchars($str, ENT_QUOTES | (\PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), $this->charset); |
|
469
|
|
|
} |
|
470
|
|
|
|
|
471
|
|
|
/** |
|
472
|
|
|
* @internal |
|
473
|
|
|
*/ |
|
474
|
|
|
public function catchOutput($buffer) |
|
475
|
|
|
{ |
|
476
|
|
|
$this->caughtBuffer = $buffer; |
|
477
|
|
|
|
|
478
|
|
|
return ''; |
|
479
|
|
|
} |
|
480
|
|
|
|
|
481
|
|
|
/** |
|
482
|
|
|
* @internal |
|
483
|
|
|
*/ |
|
484
|
|
|
public function cleanOutput($buffer) |
|
485
|
|
|
{ |
|
486
|
|
|
if ($this->caughtLength) { |
|
487
|
|
|
// use substr_replace() instead of substr() for mbstring overloading resistance |
|
488
|
|
|
$cleanBuffer = substr_replace($buffer, '', 0, $this->caughtLength); |
|
489
|
|
|
if (isset($cleanBuffer[0])) { |
|
490
|
|
|
$buffer = $cleanBuffer; |
|
491
|
|
|
} |
|
492
|
|
|
} |
|
493
|
|
|
|
|
494
|
|
|
return $buffer; |
|
495
|
|
|
} |
|
496
|
|
|
} |
|
497
|
|
|
|
itstructure /
yii2-template-simple
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If you suppress an error, we recommend checking for the error condition explicitly: