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[HttpClient] Fix CurlHttpClient memory leak #38493

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Merged
merged 1 commit into from
Oct 10, 2020
Merged

[HttpClient] Fix CurlHttpClient memory leak #38493

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10 changes: 3 additions & 7 deletions src/Symfony/Component/HttpClient/Response/CurlResponse.php
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
use Symfony\Component\HttpClient\Exception\TransportException;
use Symfony\Component\HttpClient\Internal\ClientState;
use Symfony\Component\HttpClient\Internal\CurlClientState;
use Symfony\Contracts\HttpClient\Exception\HttpExceptionInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;

/**
Expand Down Expand Up @@ -205,14 +204,9 @@ public function __destruct()
return; // Unused pushed response
}

$e = null;
$this->doDestruct();
} catch (HttpExceptionInterface $e) {
throw $e;
} finally {
if ($e ?? false) {
throw $e;
}
$multi = clone $this->multi;

$this->close();

Expand All @@ -221,6 +215,8 @@ public function __destruct()
$this->multi->dnsCache->evictions = $this->multi->dnsCache->evictions ?: $this->multi->dnsCache->removals;
$this->multi->dnsCache->removals = $this->multi->dnsCache->hostnames = [];
}

$this->multi = $multi;
}
}

Expand Down
10 changes: 3 additions & 7 deletions src/Symfony/Component/HttpClient/Response/NativeResponse.php
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Expand Up @@ -16,7 +16,6 @@
use Symfony\Component\HttpClient\Exception\TransportException;
use Symfony\Component\HttpClient\Internal\ClientState;
use Symfony\Component\HttpClient\Internal\NativeClientState;
use Symfony\Contracts\HttpClient\Exception\HttpExceptionInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;

/**
Expand Down Expand Up @@ -87,14 +86,9 @@ public function getInfo(string $type = null)
public function __destruct()
{
try {
$e = null;
$this->doDestruct();
} catch (HttpExceptionInterface $e) {
throw $e;
} finally {
if ($e ?? false) {
throw $e;
}
$multi = clone $this->multi;

$this->close();

Expand All @@ -103,6 +97,8 @@ public function __destruct()
$this->multi->responseCount = 0;
$this->multi->dnsCache = [];
}

$this->multi = $multi;
}
}

Expand Down
24 changes: 24 additions & 0 deletions src/Symfony/Component/HttpClient/Tests/HttpClientTestCase.php
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Expand Up @@ -13,6 +13,8 @@

use Symfony\Component\HttpClient\Exception\ClientException;
use Symfony\Component\HttpClient\Exception\TransportException;
use Symfony\Component\HttpClient\Internal\ClientState;
use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
use Symfony\Contracts\HttpClient\Test\HttpClientTestCase as BaseHttpClientTestCase;

abstract class HttpClientTestCase extends BaseHttpClientTestCase
Expand Down Expand Up @@ -120,4 +122,26 @@ public function testTimeoutIsNotAFatalError()
throw $e;
}
}

public function testHandleIsRemovedOnException()
{
$client = $this->getHttpClient(__FUNCTION__);

try {
$client->request('GET', 'http://localhost:8057/304');
$this->fail(RedirectionExceptionInterface::class.' expected');
} catch (RedirectionExceptionInterface $e) {
// The response content-type mustn't be json as that calls getContent
// @see src/Symfony/Component/HttpClient/Exception/HttpExceptionTrait.php:58
$this->assertStringNotContainsString('json', $e->getResponse()->getHeaders(false)['content-type'][0] ?? '');

$r = new \ReflectionProperty($client, 'multi');
$r->setAccessible(true);
/** @var ClientState $clientState */
$clientState = $r->getValue($client);

$this->assertCount(0, $clientState->handlesActivity);
$this->assertCount(0, $clientState->openHandles);
}
}
}
4 changes: 4 additions & 0 deletions src/Symfony/Component/HttpClient/Tests/MockHttpClientTest.php
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Expand Up @@ -119,6 +119,10 @@ protected function getHttpClient(string $testCase): HttpClientInterface
$this->markTestSkipped("MockHttpClient doesn't timeout on destruct");
break;

case 'testHandleIsRemovedOnException':
$this->markTestSkipped("MockHttpClient doesn't cache handles");
break;

case 'testGetRequest':
array_unshift($headers, 'HTTP/1.1 200 OK');
$responses[] = new MockResponse($body, ['response_headers' => $headers]);
Expand Down
4 changes: 2 additions & 2 deletions src/Symfony/Contracts/HttpClient/Test/Fixtures/web/index.php
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Expand Up @@ -157,7 +157,7 @@
exit;

case '/json':
header("Content-Type: application/json");
header('Content-Type: application/json');
echo json_encode([
'documents' => [
['id' => '/json/1'],
Expand All @@ -170,7 +170,7 @@
case '/json/1':
case '/json/2':
case '/json/3':
header("Content-Type: application/json");
header('Content-Type: application/json');
echo json_encode([
'title' => $vars['REQUEST_URI'],
]);
Expand Down