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[HttpKernel] Enhance exception if possible #50911

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Merged
merged 1 commit into from
Jul 30, 2023
Merged

[HttpKernel] Enhance exception if possible #50911

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[HttpKernel] Enhance exception if possible
  • Loading branch information
@lyrixx
lyrixx committed Jul 25, 2023
commit 2bfb9d91280117415329a0037420562c3dfbef1a
24 changes: 16 additions & 8 deletions src/Symfony/Component/ErrorHandler/ErrorHandler.php
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Original file line number Diff line number Diff line change
Expand Up @@ -516,14 +516,7 @@ public function handleException(\Throwable $exception): void
}
}

if (!$exception instanceof OutOfMemoryError) {
foreach ($this->getErrorEnhancers() as $errorEnhancer) {
if ($e = $errorEnhancer->enhance($exception)) {
$exception = $e;
break;
}
}
}
$exception = $this->enhanceError($exception);

$exceptionHandler = $this->exceptionHandler;
$this->exceptionHandler = [$this, 'renderException'];
Expand Down Expand Up @@ -661,6 +654,21 @@ private function renderException(\Throwable $exception): void
echo $exception->getAsString();
}

public function enhanceError(\Throwable $exception): \Throwable
{
if ($exception instanceof OutOfMemoryError) {
return $exception;
}

foreach ($this->getErrorEnhancers() as $errorEnhancer) {
if ($e = $errorEnhancer->enhance($exception)) {
return $e;
}
}

return $exception;
}

/**
* Override this method if you want to define more error enhancers.
*
Expand Down
16 changes: 12 additions & 4 deletions src/Symfony/Component/ErrorHandler/Tests/ErrorHandlerTest.php
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Expand Up @@ -363,13 +363,14 @@ public function testHandleDeprecation()
/**
* @dataProvider handleExceptionProvider
*/
public function testHandleException(string $expectedMessage, \Throwable $exception)
public function testHandleException(string $expectedMessage, \Throwable $exception, string $enhancedMessage = null)
{
try {
$logger = $this->createMock(LoggerInterface::class);
$handler = ErrorHandler::register();

$logArgCheck = function ($level, $message, $context) use ($expectedMessage, $exception) {
$this->assertSame('critical', $level);
$this->assertSame($expectedMessage, $message);
$this->assertArrayHasKey('exception', $context);
$this->assertInstanceOf($exception::class, $context['exception']);
Expand All @@ -388,11 +389,13 @@ public function testHandleException(string $expectedMessage, \Throwable $excepti
$handler->handleException($exception);
$this->fail('Exception expected');
} catch (\Throwable $e) {
$this->assertSame($exception, $e);
$this->assertInstanceOf($exception::class, $e);
$this->assertSame($enhancedMessage ?? $exception->getMessage(), $e->getMessage());
}

$handler->setExceptionHandler(function ($e) use ($exception) {
$this->assertSame($exception, $e);
$handler->setExceptionHandler(function ($e) use ($exception, $enhancedMessage) {
$this->assertInstanceOf($exception::class, $e);
$this->assertSame($enhancedMessage ?? $exception->getMessage(), $e->getMessage());
});

$handler->handleException($exception);
Expand All @@ -412,6 +415,11 @@ public static function handleExceptionProvider(): array
})::class.' bar')],
['Uncaught Error: bar', new \Error('bar')],
['Uncaught ccc', new \ErrorException('ccc')],
[
'Uncaught Error: Class "App\Controller\ClassDoesNotExist" not found',
new \Error('Class "App\Controller\ClassDoesNotExist" not found'),
"Attempted to load class \"ClassDoesNotExist\" from namespace \"App\Controller\".\nDid you forget a \"use\" statement for another namespace?",
],
];
}

Expand Down
9 changes: 9 additions & 0 deletions src/Symfony/Component/HttpKernel/EventListener/ErrorListener.php
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Expand Up @@ -13,6 +13,7 @@

use Psr\Log\LoggerInterface;
use Psr\Log\LogLevel;
use Symfony\Component\ErrorHandler\ErrorHandler;
use Symfony\Component\ErrorHandler\Exception\FlattenException;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\Request;
Expand Down Expand Up @@ -102,6 +103,14 @@ public function onKernelException(ExceptionEvent $event)
}

$throwable = $event->getThrowable();

if ($exceptionHandler = set_exception_handler(var_dump(...))) {
restore_exception_handler();
if (\is_array($exceptionHandler) && $exceptionHandler[0] instanceof ErrorHandler) {
$throwable = $exceptionHandler[0]->enhanceError($event->getThrowable());
}
}

$request = $this->duplicateRequest($throwable, $event->getRequest());

try {
Expand Down
2 changes: 1 addition & 1 deletion src/Symfony/Component/HttpKernel/composer.json
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Expand Up @@ -18,7 +18,7 @@
"require": {
"php": ">=8.1",
"symfony/deprecation-contracts": "^2.5|^3",
"symfony/error-handler": "^6.3|^7.0",
"symfony/error-handler": "^6.4|^7.0",
"symfony/event-dispatcher": "^5.4|^6.0|^7.0",
"symfony/http-foundation": "^6.2.7|^7.0",
"symfony/polyfill-ctype": "^1.8",
Expand Down