bug #22079 [HttpKernel] Fixed bug with purging of HTTPS URLs (ausi)

This PR was squashed before being merged into the 2.7 branch (closes #22079).

Discussion
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[HttpKernel] Fixed bug with purging of HTTPS URLs

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

I found two bugs in `HttpCache\Store::purge()` with HTTPS URLs:

1. `->purge('https://example.com/')` only purges the `http` version not the `https` one.
2. If a cache entry exists for both `http` and `https`, only the `http` version gets purged, the `https` version stays in the cache.

I think this issues were introduced with #21582.

This pull request fixes both issues and adds tests for them.

Commits
-------

f509150 [HttpKernel] Fixed bug with purging of HTTPS URLs

src/Symfony/Component/HttpKernel/HttpCache/Store.php

@@ -325,10 +325,13 @@ private function getMetadata($key)
      */
     public function purge($url)
     {
-        $http = preg_replace('#^https#', 'http', $url);
-        $https = preg_replace('#^http#', 'https', $url);
+        $http = preg_replace('#^https:#', 'http:', $url);
+        $https = preg_replace('#^http:#', 'https:', $url);
 
-        return $this->doPurge($http) || $this->doPurge($https);
+        $purgedHttp = $this->doPurge($http);
+        $purgedHttps = $this->doPurge($https);
+
+        return $purgedHttp || $purgedHttps;
     }
 
     /**

src/Symfony/Component/HttpKernel/Tests/HttpCache/StoreTest.php

@@ -236,6 +236,33 @@ public function testLocking()
         $this->assertFalse($this->store->isLocked($req));
     }
 
+    public function testPurgeHttps()
+    {
+        $request = Request::create('https://example.com/foo');
+        $this->store->write($request, new Response('foo'));
+
+        $this->assertNotEmpty($this->getStoreMetadata($request));
+
+        $this->assertTrue($this->store->purge('https://example.com/foo'));
+        $this->assertEmpty($this->getStoreMetadata($request));
+    }
+
+    public function testPurgeHttpAndHttps()
+    {
+        $requestHttp = Request::create('https://example.com/foo');
+        $this->store->write($requestHttp, new Response('foo'));
+
+        $requestHttps = Request::create('http://example.com/foo');
+        $this->store->write($requestHttps, new Response('foo'));
+
+        $this->assertNotEmpty($this->getStoreMetadata($requestHttp));
+        $this->assertNotEmpty($this->getStoreMetadata($requestHttps));
+
+        $this->assertTrue($this->store->purge('http://example.com/foo'));
+        $this->assertEmpty($this->getStoreMetadata($requestHttp));
+        $this->assertEmpty($this->getStoreMetadata($requestHttps));
+    }
+
     protected function storeSimpleEntry($path = null, $headers = array())
     {
         if (null === $path) {