Initial commit to new repo

app/Services/TokenService.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Services;
+
+use RuntimeException;
+use Lcobucci\JWT\Parser;
+use Lcobucci\JWT\Builder;
+use InvalidArgumentException;
+use Lcobucci\JWT\Signer\Hmac\Sha256;
+
+class TokenService
+{
+    /**
+     * Generate a JWT token.
+     *
+     * @param  array The data to be encoded
+     * @return string The signed token
+     */
+    public function getNewToken(array $data): string
+    {
+        $signer = new Sha256();
+        $token = (new Builder())->set('me', $data['me'])
+            ->set('client_id', $data['client_id'])
+            ->set('scope', $data['scope'])
+            ->set('date_issued', time())
+            ->set('nonce', bin2hex(random_bytes(8)))
+            ->sign($signer, env('APP_KEY'))
+            ->getToken();
+
+        return $token;
+    }
+
+    /**
+     * Check the token signature is valid.
+     *
+     * @param  string The token
+     * @return mixed
+     */
+    public function validateToken($token)
+    {
+        $signer = new Sha256();
+        try {
+            $token = (new Parser())->parse((string) $token);
+        } catch (InvalidArgumentException $e) {
+            return;
+        } catch (RuntimeException $e) {
+            return;
+        }
+        if ($token->verify($signer, env('APP_KEY'))) {
+            //signuture valid
+            return $token;
+        }
+    }
+}