Online PHP editor | perf for 7iuYl

@ 2020-11-23T15:06:07Z

<?php

final class JWT
{
    /**
     * Decodes a JWT string into a PHP object.
     *
     * @param string      $jwt    The JWT
     * @param string|null $key    The secret key
     * @param bool        $verify Don't skip verification process
     *
     * @throws UnexpectedValueException Provided JWT was invalid
     * @throws DomainException          Algorithm was not provided
     *
     * @return object The JWT's payload as a PHP object
     *
     * @uses jsonDecode
     * @uses urlsafeB64Decode
     */
    public static function decode($jwt, $key = null, $verify = true)
    {
        $tks = explode('.', $jwt);
        
        if (count($tks) != 3) {
            throw new \UnexpectedValueException('Wrong number of segments');
        }
        
        list($headb64, $bodyb64, $cryptob64) = $tks;
        
        if (null === ($header = self::jsonDecode(self::urlsafeB64Decode($headb64)))) {
            throw new \UnexpectedValueException('Invalid segment encoding');
        }
        
        if (null === $payload = self::jsonDecode(self::urlsafeB64Decode($bodyb64))) {
            throw new \UnexpectedValueException('Invalid segment encoding');
        }
        
        $sig = self::urlsafeB64Decode($cryptob64);
        
        if ($verify) {
            if (empty($header->alg)) {
                throw new \DomainException('Empty algorithm');
            }
            if ($sig != self::sign("$headb64.$bodyb64", $key, $header->alg)) {
                throw new \UnexpectedValueException('Signature verification failed');
            }
        }

        return $payload;
    }

    /**
     * Converts and signs a PHP object or array into a JWT string.
     *
     * @param object|array $payload PHP object or array
     * @param string       $key     The secret key
     * @param string       $algo    The signing algorithm. Supported
     *                              algorithms are 'HS256', 'HS384' and 'HS512'
     *
     * @return string A signed JWT
     *
     * @uses jsonEncode
     * @uses urlsafeB64Encode
     */
    public static function encode($payload, $key, $algo = 'HS256')
    {
        $header = ['typ' => 'JWT', 'alg' => $algo];

        $segments = [];
        $segments[] = self::urlsafeB64Encode(self::jsonEncode($header));
        $segments[] = self::urlsafeB64Encode(self::jsonEncode($payload));
        $signing_input = implode('.', $segments);

        $signature = self::sign($signing_input, $key, $algo);
        $segments[] = self::urlsafeB64Encode($signature);

        return implode('.', $segments);
    }

    /**
     * Sign a string with a given key and algorithm.
     *
     * @param string $msg    The message to sign
     * @param string $key    The secret key
     * @param string $method The signing algorithm. Supported
     *                       algorithms are 'HS256', 'HS384' and 'HS512'
     *
     * @throws DomainException Unsupported algorithm was specified
     * @return string An encrypted message
     */
    private static function sign($msg, $key, $method = 'HS256')
    {
        $methods = [
            'HS256' => 'sha256',
            'HS384' => 'sha384',
            'HS512' => 'sha512',
        ];
        if (empty($methods[$method])) {
            throw new \DomainException('Algorithm not supported');
        }

        return hash_hmac($methods[$method], $msg, $key, true);
    }

    /**
     * Decode a JSON string into a PHP object.
     *
     * @param string $input JSON string
     * @throws DomainException Provided string was invalid JSON
     * @return object Object representation of JSON string
     */
    private static function jsonDecode($input)
    {
        $obj = json_decode($input);
        
        if (function_exists('json_last_error') && $errno = json_last_error()) {
            self::_handleJsonError($errno);
        } elseif ($obj === null && $input !== 'null') {
            throw new \DomainException('Null result with non-null input');
        }

        return $obj;
    }

    /**
     * Encode a PHP object into a JSON string.
     *
     * @param object|array $input A PHP object or array
     * @throws DomainException Provided object could not be encoded to valid JSON
     * @return string JSON representation of the PHP object or array
     */
    private static function jsonEncode($input)
    {
        $json = json_encode($input);
        if (function_exists('json_last_error') && $errno = json_last_error()) {
            self::_handleJsonError($errno);
        } elseif ($json === 'null' && $input !== null) {
            throw new \DomainException('Null result with non-null input');
        }

        return $json;
    }

    /**
     * Decode a string with URL-safe Base64.
     *
     * @param string $input A Base64 encoded string
     * @return string A decoded string
     */
    private static function urlsafeB64Decode($input)
    {
        $remainder = strlen($input) % 4;
        if ($remainder) {
            $padlen = 4 - $remainder;
            $input .= str_repeat('=', $padlen);
        }

        return base64_decode(strtr($input, '-_', '+/'));
    }

    /**
     * Encode a string with URL-safe Base64.
     *
     * @param string $input The string you want encoded
     * @return string The base64 encode of what you passed in
     */
    private static function urlsafeB64Encode($input)
    {
        return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
    }

    /**
     * Helper method to create a JSON error.
     *
     * @param int $errno An error number from json_last_error()
     * @return void
     */
    private static function _handleJsonError($errno)
    {
        $messages = [
            JSON_ERROR_DEPTH     => 'Maximum stack depth exceeded',
            JSON_ERROR_CTRL_CHAR => 'Unexpected control character found',
            JSON_ERROR_SYNTAX    => 'Syntax error, malformed JSON',
        ];

        throw new \DomainException(
            isset($messages[$errno])
            ? $messages[$errno]
            : 'Unknown JSON error: '.$errno
        );
    }
}

$secret = 'SERVERSIDE_SECRET';

try {
    $token = JWT::encode(['user_id' => 1], $secret);

    echo $token.PHP_EOL;
    
    // verify
    if (JWT::decode($token, $secret, true)) {
        echo 'Token valid'.PHP_EOL;
    } else {
        echo 'Token invalid';
    }
    
    // tampered
    try {
        JWT::decode($token.'X', $secret, true);
    } catch (\Exception $e) {
        echo $e->getMessage().PHP_EOL; 
    }

    // decode
    print_r(JWT::decode($token, $secret));
} catch (\Exception $e) {
    echo $e->getMessage();   
}

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.0	0.011	0.012	20.30
8.4.15	0.003	0.000	14.05
8.4.14	0.009	0.012	17.98
8.4.13	0.012	0.010	19.83
8.4.12	0.013	0.007	20.53
8.4.11	0.012	0.010	22.63
8.4.10	0.007	0.002	18.16
8.4.9	0.012	0.008	17.94
8.4.8	0.011	0.010	17.94
8.4.7	0.013	0.008	18.07
8.4.6	0.012	0.009	18.16
8.4.5	0.011	0.010	17.99
8.4.4	0.006	0.003	20.46
8.4.3	0.007	0.013	20.29
8.4.2	0.010	0.007	17.88
8.4.1	0.000	0.009	19.73
8.3.28	0.014	0.009	18.51
8.3.27	0.010	0.010	16.75
8.3.26	0.013	0.006	16.84
8.3.25	0.005	0.003	18.90
8.3.24	0.010	0.011	17.13
8.3.23	0.006	0.013	16.70
8.3.22	0.006	0.002	17.32
8.3.21	0.010	0.008	16.82
8.3.20	0.010	0.009	17.00
8.3.19	0.009	0.010	16.41
8.3.18	0.013	0.007	17.02
8.3.17	0.009	0.009	16.66
8.3.16	0.011	0.007	18.55
8.3.15	0.004	0.004	17.50
8.3.14	0.000	0.008	20.58
8.3.13	0.008	0.003	18.47
8.3.12	0.005	0.003	20.74
8.3.11	0.003	0.006	20.94
8.3.10	0.012	0.006	24.06
8.3.9	0.006	0.003	26.77
8.3.8	0.006	0.003	19.36
8.3.7	0.012	0.003	16.88
8.3.6	0.011	0.011	18.68
8.3.5	0.007	0.010	23.81
8.3.4	0.015	0.003	21.93
8.3.3	0.011	0.011	18.83
8.3.2	0.003	0.006	24.18
8.3.1	0.005	0.003	24.66
8.3.0	0.003	0.006	26.16
8.2.29	0.006	0.004	20.45
8.2.28	0.006	0.002	18.46
8.2.27	0.013	0.007	16.84
8.2.26	0.010	0.006	17.30
8.2.25	0.006	0.003	16.69
8.2.24	0.006	0.006	17.16
8.2.23	0.006	0.003	22.58
8.2.22	0.000	0.010	37.54
8.2.21	0.000	0.008	26.77
8.2.20	0.000	0.009	18.88
8.2.19	0.009	0.013	16.92
8.2.18	0.018	0.004	25.92
8.2.17	0.016	0.006	18.92
8.2.16	0.007	0.007	22.96
8.2.15	0.004	0.004	25.66
8.2.14	0.003	0.005	24.66
8.2.13	0.004	0.004	26.16
8.2.12	0.004	0.004	19.95
8.2.11	0.003	0.006	19.39
8.2.10	0.008	0.004	17.84
8.2.9	0.000	0.009	20.42
8.2.8	0.000	0.008	20.48
8.2.7	0.003	0.006	17.63
8.2.6	0.004	0.004	17.75
8.2.5	0.003	0.005	18.05
8.2.4	0.005	0.003	18.16
8.2.3	0.007	0.000	18.13
8.2.2	0.008	0.000	18.27
8.2.1	0.000	0.008	19.40
8.2.0	0.004	0.004	19.42
8.1.33	0.010	0.009	16.97
8.1.32	0.011	0.009	16.23
8.1.31	0.008	0.000	18.73
8.1.30	0.006	0.003	16.23
8.1.29	0.006	0.003	18.88
8.1.28	0.003	0.012	25.92
8.1.27	0.003	0.005	23.99
8.1.26	0.004	0.004	26.35
8.1.25	0.008	0.000	28.09
8.1.24	0.003	0.006	23.87
8.1.23	0.008	0.004	21.03
8.1.22	0.006	0.003	17.74
8.1.21	0.008	0.000	18.91
8.1.20	0.003	0.006	17.48
8.1.19	0.005	0.005	17.35
8.1.18	0.006	0.003	18.10
8.1.17	0.004	0.004	18.59
8.1.16	0.003	0.006	18.82
8.1.15	0.003	0.007	18.86
8.1.14	0.003	0.005	20.59
8.1.13	0.007	0.000	20.11
8.1.12	0.004	0.004	17.53
8.1.11	0.004	0.004	17.39
8.1.10	0.007	0.000	17.47
8.1.9	0.010	0.000	17.40
8.1.8	0.003	0.006	17.41
8.1.7	0.008	0.000	17.54
8.1.6	0.008	0.000	17.63
8.1.5	0.000	0.008	17.46
8.1.4	0.004	0.004	17.45
8.1.3	0.006	0.003	17.72
8.1.2	0.000	0.008	17.74
8.1.1	0.005	0.003	17.61
8.1.0	0.003	0.006	17.57
8.0.30	0.005	0.003	20.20
8.0.29	0.009	0.003	16.88
8.0.28	0.004	0.004	18.52
8.0.27	0.000	0.007	18.11
8.0.26	0.000	0.006	18.63
8.0.25	0.003	0.003	17.09
8.0.24	0.006	0.003	17.05
8.0.23	0.000	0.007	17.05
8.0.22	0.007	0.000	16.91
8.0.21	0.000	0.008	16.90
8.0.20	0.000	0.007	16.98
8.0.19	0.002	0.005	17.00
8.0.18	0.004	0.004	17.02
8.0.17	0.003	0.006	17.03
8.0.16	0.004	0.004	17.10
8.0.15	0.000	0.008	16.96
8.0.14	0.007	0.000	16.95
8.0.13	0.006	0.000	13.48
8.0.12	0.000	0.008	16.90
8.0.11	0.000	0.007	16.98
8.0.10	0.004	0.004	17.04
8.0.9	0.000	0.007	16.87
8.0.8	0.010	0.005	16.93
8.0.7	0.003	0.006	16.88
8.0.6	0.004	0.004	17.07
8.0.5	0.000	0.007	16.96
8.0.3	0.012	0.012	16.86
8.0.2	0.017	0.005	17.25
8.0.1	0.000	0.009	17.09
8.0.0	0.013	0.007	16.79
7.4.33	0.006	0.000	15.55
7.4.32	0.000	0.006	16.66
7.4.30	0.000	0.007	16.48
7.4.29	0.000	0.008	16.50
7.4.28	0.006	0.003	16.64
7.4.27	0.003	0.003	16.52
7.4.26	0.003	0.003	13.29
7.4.25	0.004	0.004	16.59
7.4.24	0.002	0.006	16.44
7.4.23	0.000	0.007	16.54
7.4.22	0.005	0.002	16.64
7.4.21	0.007	0.009	16.67
7.4.20	0.004	0.004	16.49
7.4.13	0.014	0.008	16.57
7.4.12	0.014	0.010	16.37
7.4.11	0.010	0.011	16.55
7.4.10	0.010	0.011	16.41
7.4.9	0.014	0.010	16.48
7.4.8	0.015	0.006	16.38
7.4.7	0.014	0.010	16.64
7.4.6	0.007	0.011	16.53
7.4.5	0.007	0.011	16.27
7.4.4	0.012	0.009	16.22
7.4.3	0.016	0.008	16.30
7.4.2	0.013	0.006	16.45
7.4.1	0.010	0.012	16.53
7.4.0	0.010	0.014	16.55
7.3.33	0.003	0.003	16.41
7.3.32	0.003	0.003	13.46
7.3.31	0.000	0.007	16.36
7.3.30	0.003	0.003	16.48
7.3.29	0.004	0.004	16.47
7.3.26	0.007	0.013	16.80
7.3.24	0.009	0.015	16.29
7.3.23	0.012	0.009	16.43
7.3.22	0.009	0.009	16.29
7.3.21	0.007	0.011	16.38
7.3.20	0.010	0.010	16.36
7.3.19	0.000	0.018	16.48
7.3.18	0.003	0.017	16.46
7.3.17	0.017	0.006	16.43
7.3.16	0.012	0.006	16.47
7.3.15	0.019	0.000	16.36
7.3.14	0.009	0.012	16.34
7.3.13	0.013	0.006	16.32
7.3.12	0.009	0.012	16.53
7.3.11	0.004	0.014	16.37
7.3.10	0.010	0.010	16.37
7.3.9	0.010	0.009	16.36
7.3.8	0.015	0.009	16.41
7.3.7	0.011	0.006	16.57
7.3.6	0.015	0.006	16.55
7.3.5	0.012	0.009	16.38
7.3.4	0.006	0.012	16.40
7.3.3	0.009	0.009	16.45
7.3.2	0.026	0.010	16.39
7.3.1	0.009	0.009	16.41
7.3.0	0.011	0.006	16.47
7.2.34	0.012	0.006	16.57
7.2.33	0.015	0.011	16.63
7.2.32	0.003	0.017	16.69
7.2.31	0.009	0.009	16.75
7.2.30	0.013	0.010	16.57
7.2.29	0.004	0.013	16.47
7.2.28	0.010	0.011	16.63
7.2.27	0.013	0.006	16.79
7.2.26	0.014	0.007	16.48
7.2.25	0.009	0.013	16.70
7.2.24	0.006	0.012	16.70
7.2.23	0.017	0.007	16.71
7.2.22	0.013	0.007	16.48
7.2.21	0.007	0.011	16.72
7.2.20	0.013	0.010	16.64
7.2.19	0.007	0.010	16.78
7.2.18	0.006	0.016	16.68
7.2.17	0.012	0.008	16.50
7.2.16	0.017	0.007	16.59
7.2.15	0.021	0.000	16.74
7.2.14	0.015	0.006	16.77
7.2.13	0.010	0.010	16.66
7.2.12	0.011	0.007	16.77
7.2.11	0.013	0.013	16.65
7.2.10	0.010	0.013	16.82
7.2.9	0.013	0.013	16.75
7.2.8	0.013	0.013	16.66
7.2.7	0.012	0.015	16.86
7.2.6	0.009	0.015	16.71
7.2.5	0.019	0.000	16.63
7.2.4	0.015	0.006	16.70
7.2.3	0.013	0.010	16.85
7.2.2	0.012	0.012	16.83
7.2.1	0.020	0.007	16.65
7.2.0	0.009	0.011	16.68

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