Edit: DigestDataTest.php

Editing: DigestDataTest.php

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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Security\Http\Tests\Firewall;

use Symfony\Component\Security\Http\Firewall\DigestData;

class DigestDataTest extends \PHPUnit_Framework_TestCase
{
    public function testGetResponse()
    {
        $digestAuth = new DigestData(
            'username="user", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('b52938fc9e6d7c01be7702ece9031b42', $digestAuth->getResponse());
    }

public function testGetUsername()
    {
        $digestAuth = new DigestData(
            'username="user", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('user', $digestAuth->getUsername());
    }

public function testGetUsernameWithQuote()
    {
        $digestAuth = new DigestData(
            'username="\"user\"", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('"user"', $digestAuth->getUsername());
    }

public function testGetUsernameWithQuoteAndEscape()
    {
        $digestAuth = new DigestData(
            'username="\"u\\\\\"ser\"", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('"u\\"ser"', $digestAuth->getUsername());
    }

public function testGetUsernameWithSingleQuote()
    {
        $digestAuth = new DigestData(
            'username="\"u\'ser\"", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('"u\'ser"', $digestAuth->getUsername());
    }

public function testGetUsernameWithSingleQuoteAndEscape()
    {
        $digestAuth = new DigestData(
            'username="\"u\\\'ser\"", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('"u\\\'ser"', $digestAuth->getUsername());
    }

public function testGetUsernameWithEscape()
    {
        $digestAuth = new DigestData(
            'username="\"u\\ser\"", realm="Welcome, robot!", ' .
            'nonce="MTM0NzMyMTgyMy42NzkzOmRlZjM4NmIzOGNjMjE0OWJiNDU0MDAxNzJmYmM1MmZl", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

$this->assertEquals('"u\\ser"', $digestAuth->getUsername());
    }

public function testValidateAndDecode()
    {
        $time = microtime(true);
        $key = 'ThisIsAKey';
        $nonce = base64_encode($time.':'.md5($time.':'.$key));

$digestAuth = new DigestData(
            'username="user", realm="Welcome, robot!", nonce="'.$nonce.'", ' .
            'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' .
            'response="b52938fc9e6d7c01be7702ece9031b42"'
        );

try {
            $digestAuth->validateAndDecode($key, 'Welcome, robot!');
        } catch (\Exception $e) {
            $this->fail(sprintf('testValidateAndDecode fail with message: %s', $e->getMessage()));
        }
    }

public function testCalculateServerDigest()
    {
        $this->calculateServerDigest('user', 'Welcome, robot!', 'pass,word=password', 'ThisIsAKey', '00000001', 'MDIwODkz', 'auth', 'GET', '/path/info?p1=5&p2=5');
    }

public function testCalculateServerDigestWithQuote()
    {
        $this->calculateServerDigest('\"user\"', 'Welcome, \"robot\"!', 'pass,word=password', 'ThisIsAKey', '00000001', 'MDIwODkz', 'auth', 'GET', '/path/info?p1=5&p2=5');
    }

public function testCalculateServerDigestWithQuoteAndEscape()
    {
        $this->calculateServerDigest('\"u\\\\\"ser\"', 'Welcome, \"robot\"!', 'pass,word=password', 'ThisIsAKey', '00000001', 'MDIwODkz', 'auth', 'GET', '/path/info?p1=5&p2=5');
    }

public function testCalculateServerDigestEscape()
    {
        $this->calculateServerDigest('\"u\\ser\"', 'Welcome, \"robot\"!', 'pass,word=password', 'ThisIsAKey', '00000001', 'MDIwODkz', 'auth', 'GET', '/path/info?p1=5&p2=5');
        $this->calculateServerDigest('\"u\\ser\\\\\"', 'Welcome, \"robot\"!', 'pass,word=password', 'ThisIsAKey', '00000001', 'MDIwODkz', 'auth', 'GET', '/path/info?p1=5&p2=5');
    }

public function testIsNonceExpired()
    {
        $time = microtime(true) + 10;
        $key = 'ThisIsAKey';
        $nonce = base64_encode($time.':'.md5($time.':'.$key));

$digestAuth->validateAndDecode($key, 'Welcome, robot!');

$this->assertFalse($digestAuth->isNonceExpired());
    }

protected function setUp()
    {
        class_exists('Symfony\Component\Security\Http\Firewall\DigestAuthenticationListener', true);
    }

private function calculateServerDigest($username, $realm, $password, $key, $nc, $cnonce, $qop, $method, $uri)
    {
        $time = microtime(true);
        $nonce = base64_encode($time.':'.md5($time.':'.$key));

$response = md5(
            md5($username.':'.$realm.':'.$password).':'.$nonce.':'.$nc.':'.$cnonce.':'.$qop.':'.md5($method.':'.$uri)
        );

$digest = sprintf('username="%s", realm="%s", nonce="%s", uri="%s", cnonce="%s", nc=%s, qop="%s", response="%s"',
            $username, $realm, $nonce, $uri, $cnonce, $nc, $qop, $response
        );

$digestAuth = new DigestData($digest);

$this->assertEquals($digestAuth->getResponse(), $digestAuth->calculateServerDigest($password, $method));
    }
}