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[HttpKernel] Use xxh128 algorithm instead of sha256 for http cache store key #47094

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Merged
fabpot merged 1 commit into from
Aug 14, 2022
Merged

[HttpKernel] Use xxh128 algorithm instead of sha256 for http cache store key #47094

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5 changes: 5 additions & 0 deletions src/Symfony/Component/HttpFoundation/CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
CHANGELOG
=========

6.2
---

* The HTTP cache store uses the `xxh128` algorithm

6.1
---

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2 changes: 1 addition & 1 deletion src/Symfony/Component/HttpKernel/HttpCache/Store.php
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Original file line number Diff line number Diff line change
Expand Up @@ -226,7 +226,7 @@ public function write(Request $request, Response $response): string
*/
protected function generateContentDigest(Response $response): string
{
return 'en'.hash('sha256', $response->getContent());
return 'en'.hash('xxh128', $response->getContent());
}

/**
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20 changes: 10 additions & 10 deletions src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php
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Expand Up @@ -94,7 +94,7 @@ public function testSetsTheXContentDigestResponseHeaderBeforeStoring()
$entries = $this->getStoreMetadata($cacheKey);
[, $res] = $entries[0];

$this->assertEquals('en9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08', $res['x-content-digest'][0]);
$this->assertEquals('en6c78e0e3bd51d358d01e758642b85fb8', $res['x-content-digest'][0]);
}

public function testDoesNotTrustXContentDigestFromUpstream()
Expand All @@ -105,8 +105,8 @@ public function testDoesNotTrustXContentDigestFromUpstream()
$entries = $this->getStoreMetadata($cacheKey);
[, $res] = $entries[0];

$this->assertEquals('en9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08', $res['x-content-digest'][0]);
$this->assertEquals('en9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08', $response->headers->get('X-Content-Digest'));
$this->assertEquals('en6c78e0e3bd51d358d01e758642b85fb8', $res['x-content-digest'][0]);
$this->assertEquals('en6c78e0e3bd51d358d01e758642b85fb8', $response->headers->get('X-Content-Digest'));
}

public function testWritesResponseEvenIfXContentDigestIsPresent()
Expand Down Expand Up @@ -198,7 +198,7 @@ public function testRestoresResponseContentFromEntityStoreWithLookup()
{
$this->storeSimpleEntry();
$response = $this->store->lookup($this->request);
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test')), $response->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test')), $response->getContent());
}

public function testInvalidatesMetaAndEntityStoreEntriesWithInvalidate()
Expand Down Expand Up @@ -251,9 +251,9 @@ public function testStoresMultipleResponsesForEachVaryCombination()
$res3 = new Response('test 3', 200, ['Vary' => 'Foo Bar']);
$this->store->write($req3, $res3);

$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 3')), $this->store->lookup($req3)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 2')), $this->store->lookup($req2)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 1')), $this->store->lookup($req1)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 3')), $this->store->lookup($req3)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 2')), $this->store->lookup($req2)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 1')), $this->store->lookup($req1)->getContent());

$this->assertCount(3, $this->getStoreMetadata($key));
}
Expand All @@ -263,17 +263,17 @@ public function testOverwritesNonVaryingResponseWithStore()
$req1 = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Foo', 'HTTP_BAR' => 'Bar']);
$res1 = new Response('test 1', 200, ['Vary' => 'Foo Bar']);
$this->store->write($req1, $res1);
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 1')), $this->store->lookup($req1)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 1')), $this->store->lookup($req1)->getContent());

$req2 = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Bling', 'HTTP_BAR' => 'Bam']);
$res2 = new Response('test 2', 200, ['Vary' => 'Foo Bar']);
$this->store->write($req2, $res2);
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 2')), $this->store->lookup($req2)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 2')), $this->store->lookup($req2)->getContent());

$req3 = Request::create('/test', 'get', [], [], [], ['HTTP_FOO' => 'Foo', 'HTTP_BAR' => 'Bar']);
$res3 = new Response('test 3', 200, ['Vary' => 'Foo Bar']);
$key = $this->store->write($req3, $res3);
$this->assertEquals($this->getStorePath('en'.hash('sha256', 'test 3')), $this->store->lookup($req3)->getContent());
$this->assertEquals($this->getStorePath('en'.hash('xxh128', 'test 3')), $this->store->lookup($req3)->getContent());

$this->assertCount(2, $this->getStoreMetadata($key));
}
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