1 files changed, 54 insertions, 4 deletions

diff --git a/vendor/bshaffer/oauth2-server-php/src/OAuth2/Encryption/Jwt.php b/vendor/bshaffer/oauth2-server-php/src/OAuth2/Encryption/Jwt.php
index ee576e643..c258b8fc3 100644
--- a/vendor/bshaffer/oauth2-server-php/src/OAuth2/Encryption/Jwt.php
+++ b/vendor/bshaffer/oauth2-server-php/src/OAuth2/Encryption/Jwt.php
@@ -2,12 +2,21 @@
 
 namespace OAuth2\Encryption;
 
+use Exception;
+use InvalidArgumentException;
+
 /**
  * @link https://github.com/F21/jwt
  * @author F21
  */
 class Jwt implements EncryptionInterface
 {
+    /**
+     * @param $payload
+     * @param $key
+     * @param string $algo
+     * @return string
+     */
     public function encode($payload, $key, $algo = 'HS256')
     {
         $header = $this->generateJwtHeader($payload, $algo);
@@ -25,6 +34,12 @@ class Jwt implements EncryptionInterface
         return implode('.', $segments);
     }
 
+    /**
+     * @param string      $jwt
+     * @param null        $key
+     * @param array|bool  $allowedAlgorithms
+     * @return bool|mixed
+     */
     public function decode($jwt, $key = null, $allowedAlgorithms = true)
     {
         if (!strpos($jwt, '.')) {
@@ -67,6 +82,14 @@ class Jwt implements EncryptionInterface
         return $payload;
     }
 
+    /**
+     * @param $signature
+     * @param $input
+     * @param $key
+     * @param string $algo
+     * @return bool
+     * @throws InvalidArgumentException
+     */
     private function verifySignature($signature, $input, $key, $algo = 'HS256')
     {
         // use constants when possible, for HipHop support
@@ -89,10 +112,17 @@ class Jwt implements EncryptionInterface
                 return @openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512') === 1;
 
             default:
-                throw new \InvalidArgumentException("Unsupported or invalid signing algorithm.");
+                throw new InvalidArgumentException("Unsupported or invalid signing algorithm.");
         }
     }
 
+    /**
+     * @param $input
+     * @param $key
+     * @param string $algo
+     * @return string
+     * @throws Exception
+     */
     private function sign($input, $key, $algo = 'HS256')
     {
         switch ($algo) {
@@ -115,19 +145,30 @@ class Jwt implements EncryptionInterface
                 return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512');
 
             default:
-                throw new \Exception("Unsupported or invalid signing algorithm.");
+                throw new Exception("Unsupported or invalid signing algorithm.");
         }
     }
 
+    /**
+     * @param $input
+     * @param $key
+     * @param string $algo
+     * @return mixed
+     * @throws Exception
+     */
     private function generateRSASignature($input, $key, $algo)
     {
         if (!openssl_sign($input, $signature, $key, $algo)) {
-            throw new \Exception("Unable to sign data.");
+            throw new Exception("Unable to sign data.");
         }
 
         return $signature;
     }
 
+    /**
+     * @param string $data
+     * @return string
+     */
     public function urlSafeB64Encode($data)
     {
         $b64 = base64_encode($data);
@@ -138,6 +179,10 @@ class Jwt implements EncryptionInterface
         return $b64;
     }
 
+    /**
+     * @param string $b64
+     * @return mixed|string
+     */
     public function urlSafeB64Decode($b64)
     {
         $b64 = str_replace(array('-', '_'),
@@ -158,6 +203,11 @@ class Jwt implements EncryptionInterface
         );
     }
 
+    /**
+     * @param string $a
+     * @param string $b
+     * @return bool
+     */
     protected function hash_equals($a, $b)
     {
         if (function_exists('hash_equals')) {
@@ -170,4 +220,4 @@ class Jwt implements EncryptionInterface
 
         return $diff === 0;
     }
-}
+}
\ No newline at end of file