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php-jwt/src/BeforeValidException.php 0000666 00000000147 15165413123 0013505 0 ustar 00 <?php namespace AmeliaFirebase\JWT; class BeforeValidException extends \UnexpectedValueException { } php-jwt/src/JWT.php 0000666 00000034022 15165413123 0010107 0 ustar 00 <?php namespace AmeliaFirebase\JWT; use \DomainException; use \InvalidArgumentException; use \UnexpectedValueException; use \DateTime; /** * JSON Web Token implementation, based on this spec: * https://tools.ietf.org/html/rfc7519 * * PHP version 5 * * @category Authentication * @package Authentication_JWT * @author Neuman Vong <neuman@twilio.com> * @author Anant Narayanan <anant@php.net> * @license http://opensource.org/licenses/BSD-3-Clause 3-clause BSD * @link https://github.com/firebase/php-jwt */ class JWT { /** * When checking nbf, iat or expiration times, * we want to provide some extra leeway time to * account for clock skew. */ public static $leeway = 0; /** * Allow the current timestamp to be specified. * Useful for fixing a value within unit testing. * * Will default to PHP time() value if null. */ public static $timestamp = null; public static $supported_algs = array( 'HS256' => array('hash_hmac', 'SHA256'), 'HS512' => array('hash_hmac', 'SHA512'), 'HS384' => array('hash_hmac', 'SHA384'), 'RS256' => array('openssl', 'SHA256'), 'RS384' => array('openssl', 'SHA384'), 'RS512' => array('openssl', 'SHA512'), ); /** * Decodes a JWT string into a PHP object. * * @param string $jwt The JWT * @param string|array $key The key, or map of keys. * If the algorithm used is asymmetric, this is the public key * @param array $allowed_algs List of supported verification algorithms * Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' * * @return object The JWT's payload as a PHP object * * @throws UnexpectedValueException Provided JWT was invalid * @throws SignatureInvalidException Provided JWT was invalid because the signature verification failed * @throws BeforeValidException Provided JWT is trying to be used before it's eligible as defined by 'nbf' * @throws BeforeValidException Provided JWT is trying to be used before it's been created as defined by 'iat' * @throws ExpiredException Provided JWT has since expired, as defined by the 'exp' claim * * @uses jsonDecode * @uses urlsafeB64Decode */ public static function decode($jwt, $key, array $allowed_algs = array()) { $timestamp = is_null(static::$timestamp) ? time() : static::$timestamp; if (empty($key)) { throw new InvalidArgumentException('Key may not be empty'); } $tks = explode('.', $jwt); if (count($tks) != 3) { throw new UnexpectedValueException('Wrong number of segments'); } list($headb64, $bodyb64, $cryptob64) = $tks; if (null === ($header = static::jsonDecode(static::urlsafeB64Decode($headb64)))) { throw new UnexpectedValueException('Invalid header encoding'); } if (null === $payload = static::jsonDecode(static::urlsafeB64Decode($bodyb64))) { throw new UnexpectedValueException('Invalid claims encoding'); } if (false === ($sig = static::urlsafeB64Decode($cryptob64))) { throw new UnexpectedValueException('Invalid signature encoding'); } if (empty($header->alg)) { throw new UnexpectedValueException('Empty algorithm'); } if (empty(static::$supported_algs[$header->alg])) { throw new UnexpectedValueException('Algorithm not supported'); } if (!in_array($header->alg, $allowed_algs)) { throw new UnexpectedValueException('Algorithm not allowed'); } if (is_array($key) || $key instanceof \ArrayAccess) { if (isset($header->kid)) { if (!isset($key[$header->kid])) { throw new UnexpectedValueException('"kid" invalid, unable to lookup correct key'); } $key = $key[$header->kid]; } else { throw new UnexpectedValueException('"kid" empty, unable to lookup correct key'); } } // Check the signature if (!static::verify("$headb64.$bodyb64", $sig, $key, $header->alg)) { throw new SignatureInvalidException('Signature verification failed'); } // Check if the nbf if it is defined. This is the time that the // token can actually be used. If it's not yet that time, abort. if (isset($payload->nbf) && $payload->nbf > ($timestamp + static::$leeway)) { throw new BeforeValidException( 'Cannot handle token prior to ' . date(DateTime::ISO8601, $payload->nbf) ); } // Check that this token has been created before 'now'. This prevents // using tokens that have been created for later use (and haven't // correctly used the nbf claim). if (isset($payload->iat) && $payload->iat > ($timestamp + static::$leeway)) { throw new BeforeValidException( 'Cannot handle token prior to ' . date(DateTime::ISO8601, $payload->iat) ); } // Check if this token has expired. if (isset($payload->exp) && ($timestamp - static::$leeway) >= $payload->exp) { throw new ExpiredException('Expired token'); } 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. * If the algorithm used is asymmetric, this is the private key * @param string $alg The signing algorithm. * Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' * @param mixed $keyId * @param array $head An array with header elements to attach * * @return string A signed JWT * * @uses jsonEncode * @uses urlsafeB64Encode */ public static function encode($payload, $key, $alg = 'HS256', $keyId = null, $head = null) { $header = array('typ' => 'JWT', 'alg' => $alg); if ($keyId !== null) { $header['kid'] = $keyId; } if ( isset($head) && is_array($head) ) { $header = array_merge($head, $header); } $segments = array(); $segments[] = static::urlsafeB64Encode(static::jsonEncode($header)); $segments[] = static::urlsafeB64Encode(static::jsonEncode($payload)); $signing_input = implode('.', $segments); $signature = static::sign($signing_input, $key, $alg); $segments[] = static::urlsafeB64Encode($signature); return implode('.', $segments); } /** * Sign a string with a given key and algorithm. * * @param string $msg The message to sign * @param string|resource $key The secret key * @param string $alg The signing algorithm. * Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256' * * @return string An encrypted message * * @throws DomainException Unsupported algorithm was specified */ public static function sign($msg, $key, $alg = 'HS256') { if (empty(static::$supported_algs[$alg])) { throw new DomainException('Algorithm not supported'); } list($function, $algorithm) = static::$supported_algs[$alg]; switch($function) { case 'hash_hmac': return hash_hmac($algorithm, $msg, $key, true); case 'openssl': $signature = ''; $success = openssl_sign($msg, $signature, $key, $algorithm); if (!$success) { throw new DomainException("OpenSSL unable to sign data"); } else { return $signature; } } } /** * Verify a signature with the message, key and method. Not all methods * are symmetric, so we must have a separate verify and sign method. * * @param string $msg The original message (header and body) * @param string $signature The original signature * @param string|resource $key For HS*, a string key works. for RS*, must be a resource of an openssl public key * @param string $alg The algorithm * * @return bool * * @throws DomainException Invalid Algorithm or OpenSSL failure */ private static function verify($msg, $signature, $key, $alg) { if (empty(static::$supported_algs[$alg])) { throw new DomainException('Algorithm not supported'); } list($function, $algorithm) = static::$supported_algs[$alg]; switch($function) { case 'openssl': $success = openssl_verify($msg, $signature, $key, $algorithm); if ($success === 1) { return true; } elseif ($success === 0) { return false; } // returns 1 on success, 0 on failure, -1 on error. throw new DomainException( 'OpenSSL error: ' . openssl_error_string() ); case 'hash_hmac': default: $hash = hash_hmac($algorithm, $msg, $key, true); if (function_exists('hash_equals')) { return hash_equals($signature, $hash); } $len = min(static::safeStrlen($signature), static::safeStrlen($hash)); $status = 0; for ($i = 0; $i < $len; $i++) { $status |= (ord($signature[$i]) ^ ord($hash[$i])); } $status |= (static::safeStrlen($signature) ^ static::safeStrlen($hash)); return ($status === 0); } } /** * Decode a JSON string into a PHP object. * * @param string $input JSON string * * @return object Object representation of JSON string * * @throws DomainException Provided string was invalid JSON */ public static function jsonDecode($input) { if (version_compare(PHP_VERSION, '5.4.0', '>=') && !(defined('JSON_C_VERSION') && PHP_INT_SIZE > 4)) { /** In PHP >=5.4.0, json_decode() accepts an options parameter, that allows you * to specify that large ints (like Steam Transaction IDs) should be treated as * strings, rather than the PHP default behaviour of converting them to floats. */ $obj = json_decode($input, false, 512, JSON_BIGINT_AS_STRING); } else { /** Not all servers will support that, however, so for older versions we must * manually detect large ints in the JSON string and quote them (thus converting *them to strings) before decoding, hence the preg_replace() call. */ $max_int_length = strlen((string) PHP_INT_MAX) - 1; $json_without_bigints = preg_replace('/:\s*(-?\d{'.$max_int_length.',})/', ': "$1"', $input); $obj = json_decode($json_without_bigints); } if (function_exists('json_last_error') && $errno = json_last_error()) { static::handleJsonError($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 $input A PHP object or array * * @return string JSON representation of the PHP object or array * * @throws DomainException Provided object could not be encoded to valid JSON */ public static function jsonEncode($input) { $json = json_encode($input); if (function_exists('json_last_error') && $errno = json_last_error()) { static::handleJsonError($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 $input A Base64 encoded string * * @return string A decoded string */ public static function urlsafeB64Decode($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 $input The string you want encoded * * @return string The base64 encode of what you passed in */ public static function urlsafeB64Encode($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) { $messages = array( JSON_ERROR_DEPTH => 'Maximum stack depth exceeded', JSON_ERROR_STATE_MISMATCH => 'Invalid or malformed JSON', JSON_ERROR_CTRL_CHAR => 'Unexpected control character found', JSON_ERROR_SYNTAX => 'Syntax error, malformed JSON', JSON_ERROR_UTF8 => 'Malformed UTF-8 characters' //PHP >= 5.3.3 ); throw new DomainException( isset($messages[$errno]) ? $messages[$errno] : 'Unknown JSON error: ' . $errno ); } /** * Get the number of bytes in cryptographic strings. * * @param string * * @return int */ private static function safeStrlen($str) { if (function_exists('mb_strlen')) { return mb_strlen($str, '8bit'); } return strlen($str); } } php-jwt/src/SignatureInvalidException.php 0000666 00000000154 15165413123 0014571 0 ustar 00 <?php namespace AmeliaFirebase\JWT; class SignatureInvalidException extends \UnexpectedValueException { } php-jwt/src/ExpiredException.php 0000666 00000000143 15165413123 0012717 0 ustar 00 <?php namespace AmeliaFirebase\JWT; class ExpiredException extends \UnexpectedValueException { } php-jwt/composer.json 0000666 00000001344 15165413123 0010666 0 ustar 00 { "name": "firebase/php-jwt", "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.", "homepage": "https://github.com/firebase/php-jwt", "authors": [ { "name": "Neuman Vong", "email": "neuman+pear@twilio.com", "role": "Developer" }, { "name": "Anant Narayanan", "email": "anant@php.net", "role": "Developer" } ], "license": "BSD-3-Clause", "require": { "php": ">=5.3.0" }, "autoload": { "psr-4": { "Firebase\\JWT\\": "src" } }, "require-dev": { "phpunit/phpunit": " 4.8.35" } } php-jwt/LICENSE 0000666 00000002760 15165413123 0007154 0 ustar 00 Copyright (c) 2011, Neuman Vong All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Neuman Vong nor the names of other contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. php-jwt/README.md 0000666 00000017406 15165413123 0007431 0 ustar 00 [](https://travis-ci.org/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) PHP-JWT ======= A simple library to encode and decode JSON Web Tokens (JWT) in PHP, conforming to [RFC 7519](https://tools.ietf.org/html/rfc7519). Installation ------------ Use composer to manage your dependencies and download PHP-JWT: ```bash composer require firebase/php-jwt ``` Example ------- ```php <?php use \Firebase\JWT\JWT; $key = "example_key"; $token = array( "iss" => "http://example.org", "aud" => "http://example.com", "iat" => 1356999524, "nbf" => 1357000000 ); /** * IMPORTANT: * You must specify supported algorithms for your application. See * https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40 * for a list of spec-compliant algorithms. */ $jwt = JWT::encode($token, $key); $decoded = JWT::decode($jwt, $key, array('HS256')); print_r($decoded); /* NOTE: This will now be an object instead of an associative array. To get an associative array, you will need to cast it as such: */ $decoded_array = (array) $decoded; /** * You can add a leeway to account for when there is a clock skew times between * the signing and verifying servers. It is recommended that this leeway should * not be bigger than a few minutes. * * Source: http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#nbfDef */ JWT::$leeway = 60; // $leeway in seconds $decoded = JWT::decode($jwt, $key, array('HS256')); ?> ``` Example with RS256 (openssl) ---------------------------- ```php <?php use \Firebase\JWT\JWT; $privateKey = <<<EOD -----BEGIN RSA PRIVATE KEY----- MIICXAIBAAKBgQC8kGa1pSjbSYZVebtTRBLxBz5H4i2p/llLCrEeQhta5kaQu/Rn vuER4W8oDH3+3iuIYW4VQAzyqFpwuzjkDI+17t5t0tyazyZ8JXw+KgXTxldMPEL9 5+qVhgXvwtihXC1c5oGbRlEDvDF6Sa53rcFVsYJ4ehde/zUxo6UvS7UrBQIDAQAB AoGAb/MXV46XxCFRxNuB8LyAtmLDgi/xRnTAlMHjSACddwkyKem8//8eZtw9fzxz bWZ/1/doQOuHBGYZU8aDzzj59FZ78dyzNFoF91hbvZKkg+6wGyd/LrGVEB+Xre0J Nil0GReM2AHDNZUYRv+HYJPIOrB0CRczLQsgFJ8K6aAD6F0CQQDzbpjYdx10qgK1 cP59UHiHjPZYC0loEsk7s+hUmT3QHerAQJMZWC11Qrn2N+ybwwNblDKv+s5qgMQ5 5tNoQ9IfAkEAxkyffU6ythpg/H0Ixe1I2rd0GbF05biIzO/i77Det3n4YsJVlDck ZkcvY3SK2iRIL4c9yY6hlIhs+K9wXTtGWwJBAO9Dskl48mO7woPR9uD22jDpNSwe k90OMepTjzSvlhjbfuPN1IdhqvSJTDychRwn1kIJ7LQZgQ8fVz9OCFZ/6qMCQGOb qaGwHmUK6xzpUbbacnYrIM6nLSkXgOAwv7XXCojvY614ILTK3iXiLBOxPu5Eu13k eUz9sHyD6vkgZzjtxXECQAkp4Xerf5TGfQXGXhxIX52yH+N2LtujCdkQZjXAsGdm B2zNzvrlgRmgBrklMTrMYgm1NPcW+bRLGcwgW2PTvNM= -----END RSA PRIVATE KEY----- EOD; $publicKey = <<<EOD -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8kGa1pSjbSYZVebtTRBLxBz5H 4i2p/llLCrEeQhta5kaQu/RnvuER4W8oDH3+3iuIYW4VQAzyqFpwuzjkDI+17t5t 0tyazyZ8JXw+KgXTxldMPEL95+qVhgXvwtihXC1c5oGbRlEDvDF6Sa53rcFVsYJ4 ehde/zUxo6UvS7UrBQIDAQAB -----END PUBLIC KEY----- EOD; $token = array( "iss" => "example.org", "aud" => "example.com", "iat" => 1356999524, "nbf" => 1357000000 ); $jwt = JWT::encode($token, $privateKey, 'RS256'); echo "Encode:\n" . print_r($jwt, true) . "\n"; $decoded = JWT::decode($jwt, $publicKey, array('RS256')); /* NOTE: This will now be an object instead of an associative array. To get an associative array, you will need to cast it as such: */ $decoded_array = (array) $decoded; echo "Decode:\n" . print_r($decoded_array, true) . "\n"; ?> ``` Changelog --------- #### 5.0.0 / 2017-06-26 - Support RS384 and RS512. See [#117](https://github.com/firebase/php-jwt/pull/117). Thanks [@joostfaassen](https://github.com/joostfaassen)! - Add an example for RS256 openssl. See [#125](https://github.com/firebase/php-jwt/pull/125). Thanks [@akeeman](https://github.com/akeeman)! - Detect invalid Base64 encoding in signature. See [#162](https://github.com/firebase/php-jwt/pull/162). Thanks [@psignoret](https://github.com/psignoret)! - Update `JWT::verify` to handle OpenSSL errors. See [#159](https://github.com/firebase/php-jwt/pull/159). Thanks [@bshaffer](https://github.com/bshaffer)! - Add `array` type hinting to `decode` method See [#101](https://github.com/firebase/php-jwt/pull/101). Thanks [@hywak](https://github.com/hywak)! - Add all JSON error types. See [#110](https://github.com/firebase/php-jwt/pull/110). Thanks [@gbalduzzi](https://github.com/gbalduzzi)! - Bugfix 'kid' not in given key list. See [#129](https://github.com/firebase/php-jwt/pull/129). Thanks [@stampycode](https://github.com/stampycode)! - Miscellaneous cleanup, documentation and test fixes. See [#107](https://github.com/firebase/php-jwt/pull/107), [#115](https://github.com/firebase/php-jwt/pull/115), [#160](https://github.com/firebase/php-jwt/pull/160), [#161](https://github.com/firebase/php-jwt/pull/161), and [#165](https://github.com/firebase/php-jwt/pull/165). Thanks [@akeeman](https://github.com/akeeman), [@chinedufn](https://github.com/chinedufn), and [@bshaffer](https://github.com/bshaffer)! #### 4.0.0 / 2016-07-17 - Add support for late static binding. See [#88](https://github.com/firebase/php-jwt/pull/88) for details. Thanks to [@chappy84](https://github.com/chappy84)! - Use static `$timestamp` instead of `time()` to improve unit testing. See [#93](https://github.com/firebase/php-jwt/pull/93) for details. Thanks to [@josephmcdermott](https://github.com/josephmcdermott)! - Fixes to exceptions classes. See [#81](https://github.com/firebase/php-jwt/pull/81) for details. Thanks to [@Maks3w](https://github.com/Maks3w)! - Fixes to PHPDoc. See [#76](https://github.com/firebase/php-jwt/pull/76) for details. Thanks to [@akeeman](https://github.com/akeeman)! #### 3.0.0 / 2015-07-22 - Minimum PHP version updated from `5.2.0` to `5.3.0`. - Add `\Firebase\JWT` namespace. See [#59](https://github.com/firebase/php-jwt/pull/59) for details. Thanks to [@Dashron](https://github.com/Dashron)! - Require a non-empty key to decode and verify a JWT. See [#60](https://github.com/firebase/php-jwt/pull/60) for details. Thanks to [@sjones608](https://github.com/sjones608)! - Cleaner documentation blocks in the code. See [#62](https://github.com/firebase/php-jwt/pull/62) for details. Thanks to [@johanderuijter](https://github.com/johanderuijter)! #### 2.2.0 / 2015-06-22 - Add support for adding custom, optional JWT headers to `JWT::encode()`. See [#53](https://github.com/firebase/php-jwt/pull/53/files) for details. Thanks to [@mcocaro](https://github.com/mcocaro)! #### 2.1.0 / 2015-05-20 - Add support for adding a leeway to `JWT:decode()` that accounts for clock skew between signing and verifying entities. Thanks to [@lcabral](https://github.com/lcabral)! - Add support for passing an object implementing the `ArrayAccess` interface for `$keys` argument in `JWT::decode()`. Thanks to [@aztech-dev](https://github.com/aztech-dev)! #### 2.0.0 / 2015-04-01 - **Note**: It is strongly recommended that you update to > v2.0.0 to address known security vulnerabilities in prior versions when both symmetric and asymmetric keys are used together. - Update signature for `JWT::decode(...)` to require an array of supported algorithms to use when verifying token signatures. Tests ----- Run the tests using phpunit: ```bash $ pear install PHPUnit $ phpunit --configuration phpunit.xml.dist PHPUnit 3.7.10 by Sebastian Bergmann. ..... Time: 0 seconds, Memory: 2.50Mb OK (5 tests, 5 assertions) ``` New Lines in private keys ----- If your private key contains `\n` characters, be sure to wrap it in double quotes `""` and not single quotes `''` in order to properly interpret the escaped characters. License ------- [3-Clause BSD](http://opensource.org/licenses/BSD-3-Clause).
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