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[9.x] Add TrustedProxy tests for X-Forwarded-Prefix header #40744

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Feb 1, 2022
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[9.x] Add TrustedProxy tests for X-Forwarded-Prefix header #40744

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50 changes: 40 additions & 10 deletions tests/Http/Middleware/TrustProxiesTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ public function test_request_does_not_trust()
$this->assertEquals('http', $req->getScheme(), 'Assert untrusted proxy x-forwarded-proto header not used');
$this->assertEquals('localhost', $req->getHost(), 'Assert untrusted proxy x-forwarded-host header not used');
$this->assertEquals(8888, $req->getPort(), 'Assert untrusted proxy x-forwarded-port header not used');
$this->assertSame('', $req->getBaseUrl(), 'Assert untrusted proxy x-forwarded-prefix header not used');
}

/**
Expand All @@ -47,6 +48,7 @@ public function test_does_trust_trusted_proxy()
$this->assertEquals('https', $req->getScheme(), 'Assert trusted proxy x-forwarded-proto header used');
$this->assertEquals('serversforhackers.com', $req->getHost(), 'Assert trusted proxy x-forwarded-host header used');
$this->assertEquals(443, $req->getPort(), 'Assert trusted proxy x-forwarded-port header used');
$this->assertEquals('/prefix', $req->getBaseUrl(), 'Assert trusted proxy x-forwarded-prefix header used');
}

/**
Expand Down Expand Up @@ -204,6 +206,7 @@ public function test_x_forwarded_for_header_only_trusted()
$this->assertEquals('localhost', $request->getHost(),
'Assert trusted proxy did not use forwarded header for host');
$this->assertEquals(8888, $request->getPort(), 'Assert trusted proxy did not use forwarded header for port');
$this->assertSame('', $request->getBaseUrl(), 'Assert trusted proxy did not use forwarded header for prefix');
});
}

Expand All @@ -224,6 +227,7 @@ public function test_x_forwarded_host_header_only_trusted()
$this->assertEquals('serversforhackers.com', $request->getHost(),
'Assert trusted proxy used forwarded header for host');
$this->assertEquals(8888, $request->getPort(), 'Assert trusted proxy did not use forwarded header for port');
$this->assertSame('', $request->getBaseUrl(), 'Assert trusted proxy did not use forwarded header for prefix');
});
}

Expand All @@ -244,6 +248,28 @@ public function test_x_forwarded_port_header_only_trusted()
$this->assertEquals('localhost', $request->getHost(),
'Assert trusted proxy did not use forwarded header for host');
$this->assertEquals(443, $request->getPort(), 'Assert trusted proxy used forwarded header for port');
$this->assertSame('', $request->getBaseUrl(), 'Assert trusted proxy did not use forwarded header for prefix');
});
}

/**
* Test that only the X-Forwarded-Prefix header is trusted.
*/
public function test_x_forwarded_prefix_header_only_trusted()
{
$trustedProxy = $this->createTrustedProxy(Request::HEADER_X_FORWARDED_PREFIX, '*');

$request = $this->createProxiedRequest();

$trustedProxy->handle($request, function ($request) {
$this->assertEquals('192.168.10.10', $request->getClientIp(),
'Assert trusted proxy did not use forwarded header for IP');
$this->assertEquals('http', $request->getScheme(),
'Assert trusted proxy did not use forwarded header for scheme');
$this->assertEquals('localhost', $request->getHost(),
'Assert trusted proxy did not use forwarded header for host');
$this->assertEquals(8888, $request->getPort(), 'Assert trusted proxy did not use forwarded header for port');
$this->assertEquals('/prefix', $request->getBaseUrl(), 'Assert trusted proxy used forwarded header for prefix');
});
}

Expand All @@ -264,6 +290,7 @@ public function test_x_forwarded_proto_header_only_trusted()
$this->assertEquals('localhost', $request->getHost(),
'Assert trusted proxy did not use forwarded header for host');
$this->assertEquals(8888, $request->getPort(), 'Assert trusted proxy did not use forwarded header for port');
$this->assertSame('', $request->getBaseUrl(), 'Assert trusted proxy did not use forwarded header for prefix');
});
}

Expand All @@ -274,7 +301,8 @@ public function test_x_forwarded_multiple_individual_headers_trusted()
{
$trustedProxy = $this->createTrustedProxy(
Request::HEADER_X_FORWARDED_FOR | Request::HEADER_X_FORWARDED_HOST |
Request::HEADER_X_FORWARDED_PORT | Request::HEADER_X_FORWARDED_PROTO,
Request::HEADER_X_FORWARDED_PORT | Request::HEADER_X_FORWARDED_PREFIX |
Request::HEADER_X_FORWARDED_PROTO,
'*'
);

Expand All @@ -288,6 +316,7 @@ public function test_x_forwarded_multiple_individual_headers_trusted()
$this->assertEquals('serversforhackers.com', $request->getHost(),
'Assert trusted proxy used forwarded header for host');
$this->assertEquals(443, $request->getPort(), 'Assert trusted proxy used forwarded header for port');
$this->assertEquals('/prefix', $request->getBaseUrl(), 'Assert trusted proxy used forwarded header for prefix');
});
}

Expand Down Expand Up @@ -332,26 +361,27 @@ public function test_is_reading_text_based_configurations()
/**
* Fake an HTTP request by generating a Symfony Request object.
*
* @param array $serverOverRides
* @param array $serverOverrides
* @return \Symfony\Component\HttpFoundation\Request
*/
protected function createProxiedRequest($serverOverRides = [])
protected function createProxiedRequest($serverOverrides = [])
{
// Add some X-Forwarded headers and over-ride
// defaults, simulating a request made over a proxy
$serverOverRides = array_replace([
'HTTP_X_FORWARDED_FOR' => '173.174.200.38', // X-Forwarded-For -- getClientIp()
'HTTP_X_FORWARDED_HOST' => 'serversforhackers.com', // X-Forwarded-Host -- getHosts()
'HTTP_X_FORWARDED_PORT' => '443', // X-Forwarded-Port -- getPort()
'HTTP_X_FORWARDED_PROTO' => 'https', // X-Forwarded-Proto -- getScheme() / isSecure()
$serverOverrides = array_replace([
'HTTP_X_FORWARDED_FOR' => '173.174.200.38', // X-Forwarded-For -- getClientIp()
'HTTP_X_FORWARDED_HOST' => 'serversforhackers.com', // X-Forwarded-Host -- getHosts()
'HTTP_X_FORWARDED_PORT' => '443', // X-Forwarded-Port -- getPort()
'HTTP_X_FORWARDED_PREFIX' => '/prefix', // X-Forwarded-Prefix -- getBaseUrl()
'HTTP_X_FORWARDED_PROTO' => 'https', // X-Forwarded-Proto -- getScheme() / isSecure()
'SERVER_PORT' => 8888,
'HTTP_HOST' => 'localhost',
'REMOTE_ADDR' => '192.168.10.10',
], $serverOverRides);
], $serverOverrides);

// Create a fake request made over "http", one that we'd get over a proxy
// which is likely something like this:
$request = Request::create('http://localhost:8888/tag/proxy', 'GET', [], [], [], $serverOverRides, null);
$request = Request::create('http://localhost:8888/tag/proxy', 'GET', [], [], [], $serverOverrides, null);
// Need to make sure these haven't already been set
$request->setTrustedProxies([], $this->headerAll);

Expand Down