diff options
Diffstat (limited to 'library/oauth2/src/OAuth2/Encryption')
-rw-r--r-- | library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php | 11 | ||||
-rw-r--r-- | library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php | 47 | ||||
-rw-r--r-- | library/oauth2/src/OAuth2/Encryption/Jwt.php | 173 |
3 files changed, 0 insertions, 231 deletions
diff --git a/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php b/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php deleted file mode 100644 index 2d336c664..000000000 --- a/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php +++ /dev/null @@ -1,11 +0,0 @@ -<?php - -namespace OAuth2\Encryption; - -interface EncryptionInterface -{ - public function encode($payload, $key, $algorithm = null); - public function decode($payload, $key, $algorithm = null); - public function urlSafeB64Encode($data); - public function urlSafeB64Decode($b64); -} diff --git a/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php b/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php deleted file mode 100644 index 1b527e0a0..000000000 --- a/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php +++ /dev/null @@ -1,47 +0,0 @@ -<?php - -namespace OAuth2\Encryption; - -/** - * Bridge file to use the firebase/php-jwt package for JWT encoding and decoding. - * @author Francis Chuang <francis.chuang@gmail.com> - */ -class FirebaseJwt implements EncryptionInterface -{ - public function __construct() - { - if (!class_exists('\JWT')) { - throw new \ErrorException('firebase/php-jwt must be installed to use this feature. You can do this by running "composer require firebase/php-jwt"'); - } - } - - public function encode($payload, $key, $alg = 'HS256', $keyId = null) - { - return \JWT::encode($payload, $key, $alg, $keyId); - } - - public function decode($jwt, $key = null, $allowedAlgorithms = null) - { - try { - - //Maintain BC: Do not verify if no algorithms are passed in. - if (!$allowedAlgorithms) { - $key = null; - } - - return (array)\JWT::decode($jwt, $key, $allowedAlgorithms); - } catch (\Exception $e) { - return false; - } - } - - public function urlSafeB64Encode($data) - { - return \JWT::urlsafeB64Encode($data); - } - - public function urlSafeB64Decode($b64) - { - return \JWT::urlsafeB64Decode($b64); - } -} diff --git a/library/oauth2/src/OAuth2/Encryption/Jwt.php b/library/oauth2/src/OAuth2/Encryption/Jwt.php deleted file mode 100644 index ee576e643..000000000 --- a/library/oauth2/src/OAuth2/Encryption/Jwt.php +++ /dev/null @@ -1,173 +0,0 @@ -<?php - -namespace OAuth2\Encryption; - -/** - * @link https://github.com/F21/jwt - * @author F21 - */ -class Jwt implements EncryptionInterface -{ - public function encode($payload, $key, $algo = 'HS256') - { - $header = $this->generateJwtHeader($payload, $algo); - - $segments = array( - $this->urlSafeB64Encode(json_encode($header)), - $this->urlSafeB64Encode(json_encode($payload)) - ); - - $signing_input = implode('.', $segments); - - $signature = $this->sign($signing_input, $key, $algo); - $segments[] = $this->urlsafeB64Encode($signature); - - return implode('.', $segments); - } - - public function decode($jwt, $key = null, $allowedAlgorithms = true) - { - if (!strpos($jwt, '.')) { - return false; - } - - $tks = explode('.', $jwt); - - if (count($tks) != 3) { - return false; - } - - list($headb64, $payloadb64, $cryptob64) = $tks; - - if (null === ($header = json_decode($this->urlSafeB64Decode($headb64), true))) { - return false; - } - - if (null === $payload = json_decode($this->urlSafeB64Decode($payloadb64), true)) { - return false; - } - - $sig = $this->urlSafeB64Decode($cryptob64); - - if ((bool) $allowedAlgorithms) { - if (!isset($header['alg'])) { - return false; - } - - // check if bool arg supplied here to maintain BC - if (is_array($allowedAlgorithms) && !in_array($header['alg'], $allowedAlgorithms)) { - return false; - } - - if (!$this->verifySignature($sig, "$headb64.$payloadb64", $key, $header['alg'])) { - return false; - } - } - - return $payload; - } - - private function verifySignature($signature, $input, $key, $algo = 'HS256') - { - // use constants when possible, for HipHop support - switch ($algo) { - case'HS256': - case'HS384': - case'HS512': - return $this->hash_equals( - $this->sign($input, $key, $algo), - $signature - ); - - case 'RS256': - return openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA256') ? OPENSSL_ALGO_SHA256 : 'sha256') === 1; - - case 'RS384': - return @openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA384') ? OPENSSL_ALGO_SHA384 : 'sha384') === 1; - - case 'RS512': - return @openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512') === 1; - - default: - throw new \InvalidArgumentException("Unsupported or invalid signing algorithm."); - } - } - - private function sign($input, $key, $algo = 'HS256') - { - switch ($algo) { - case 'HS256': - return hash_hmac('sha256', $input, $key, true); - - case 'HS384': - return hash_hmac('sha384', $input, $key, true); - - case 'HS512': - return hash_hmac('sha512', $input, $key, true); - - case 'RS256': - return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA256') ? OPENSSL_ALGO_SHA256 : 'sha256'); - - case 'RS384': - return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA384') ? OPENSSL_ALGO_SHA384 : 'sha384'); - - case 'RS512': - return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512'); - - default: - throw new \Exception("Unsupported or invalid signing algorithm."); - } - } - - private function generateRSASignature($input, $key, $algo) - { - if (!openssl_sign($input, $signature, $key, $algo)) { - throw new \Exception("Unable to sign data."); - } - - return $signature; - } - - public function urlSafeB64Encode($data) - { - $b64 = base64_encode($data); - $b64 = str_replace(array('+', '/', "\r", "\n", '='), - array('-', '_'), - $b64); - - return $b64; - } - - public function urlSafeB64Decode($b64) - { - $b64 = str_replace(array('-', '_'), - array('+', '/'), - $b64); - - return base64_decode($b64); - } - - /** - * Override to create a custom header - */ - protected function generateJwtHeader($payload, $algorithm) - { - return array( - 'typ' => 'JWT', - 'alg' => $algorithm, - ); - } - - protected function hash_equals($a, $b) - { - if (function_exists('hash_equals')) { - return hash_equals($a, $b); - } - $diff = strlen($a) ^ strlen($b); - for ($i = 0; $i < strlen($a) && $i < strlen($b); $i++) { - $diff |= ord($a[$i]) ^ ord($b[$i]); - } - - return $diff === 0; - } -} |