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pixelfed/tests/Unit/HttpSignatures/VerifierHmacTest.php

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PHP

<?php
namespace Tests\Unit\HttpSignatures;
use GuzzleHttp\Psr7\Request;
use App\Util\HttpSignatures\KeyStore;
use App\Util\HttpSignatures\Verifier;
class VerifierHmacTest extends \PHPUnit\Framework\TestCase
{
const DATE = 'Fri, 01 Aug 2014 13:44:32 -0700';
const DATE_DIFFERENT = 'Fri, 01 Aug 2014 13:44:33 -0700';
/**
* @var Verifier
*/
private $verifier;
/**
* @var Request
*/
private $message;
public function setUp()
{
$this->setUpHmacVerifier();
$this->setUpValidHmacMessage();
}
private function setUpHmacVerifier()
{
$keyStore = new KeyStore(['secret1' => 'secret']);
$this->verifier = new Verifier($keyStore);
}
private function setUpValidHmacMessage()
{
$signatureHeader = sprintf(
'keyId="%s",algorithm="%s",headers="%s",signature="%s"',
'secret1',
'hmac-sha256',
'(request-target) date',
'cS2VvndvReuTLy52Ggi4j6UaDqGm9hMb4z0xJZ6adqU='
);
$this->message = new Request('GET', '/path?query=123', [
'Date' => self::DATE,
'Signature' => $signatureHeader,
]);
}
public function testVerifyValidHmacMessage()
{
$this->assertTrue($this->verifier->isValid($this->message));
}
public function testVerifyValidHmacMessageAuthorizationHeader()
{
$message = $this->message->withHeader('Authorization', "Signature {$this->message->getHeader('Signature')[0]}");
$message = $message->withoutHeader('Signature');
$this->assertTrue($this->verifier->isValid($this->message));
}
public function testRejectTamperedHmacRequestMethod()
{
$message = $this->message->withMethod('POST');
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectTamperedHmacDate()
{
$message = $this->message->withHeader('Date', self::DATE_DIFFERENT);
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectTamperedHmacSignature()
{
$message = $this->message->withHeader(
'Signature',
preg_replace('/signature="/', 'signature="x', $this->message->getHeader('Signature')[0])
);
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectHmacMessageWithoutSignatureHeader()
{
$message = $this->message->withoutHeader('Signature');
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectHmacMessageWithGarbageSignatureHeader()
{
$message = $this->message->withHeader('Signature', 'not="a",valid="signature"');
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectHmacMessageWithPartialSignatureHeader()
{
$message = $this->message->withHeader('Signature', 'keyId="aa",algorithm="bb"');
$this->assertFalse($this->verifier->isValid($message));
}
public function testRejectsHmacMessageWithUnknownKeyId()
{
$keyStore = new KeyStore(['nope' => 'secret']);
$verifier = new Verifier($keyStore);
$this->assertFalse($verifier->isValid($this->message));
}
public function testRejectsHmacMessageMissingSignedHeaders()
{
$message = $this->message->withoutHeader('Date');
$this->assertFalse($this->verifier->isValid($message));
}
}