Added implicit grant

src/OAuth2/Grant/Implicit.php

@@ -0,0 +1,116 @@
+<?php
+/**
+ * OAuth 2.0 implicit grant
+ *
+ * @package     lncd/oauth2
+ * @author      Alex Bilbie <hello@alexbilbie.com>
+ * @copyright   Copyright (c) 2013 University of Lincoln
+ * @license     http://mit-license.org/
+ * @link        http://github.com/lncd/oauth2
+ */
+
+namespace OAuth2\Grant;
+
+use OAuth2\Request;
+use OAuth2\AuthServer;
+use OAuth2\Exception;
+use OAuth2\Util\SecureKey;
+use OAuth2\Storage\SessionInterface;
+use OAuth2\Storage\ClientInterface;
+use OAuth2\Storage\ScopeInterface;
+
+/**
+ * Client credentials grant class
+ */
+class Implict implements GrantTypeInterface {
+
+    /**
+     * Grant identifier
+     * @var string
+     */
+    protected $identifier = 'implicit';
+
+    /**
+     * Response type
+     * @var string
+     */
+    protected $responseType = 'token';
+
+    /**
+     * AuthServer instance
+     * @var AuthServer
+     */
+    protected $authServer = null;
+
+    /**
+     * Constructor
+     * @param AuthServer $authServer AuthServer instance
+     * @return void
+     */
+    public function __construct(AuthServer $authServer)
+    {
+        $this->authServer = $authServer;
+    }
+
+    /**
+     * Return the identifier
+     * @return string
+     */
+    public function getIdentifier()
+    {
+        return $this->identifier;
+    }
+
+    /**
+     * Return the response type
+     * @return string
+     */
+    public function getResponseType()
+    {
+        return $this->responseType;
+    }
+
+    /**
+     * Complete the client credentials grant
+     * @param  null|array $inputParams
+     * @return array
+     */
+    public function completeFlow($authParams = null)
+    {
+            // Remove any old sessions the user might have
+            $this->authServer->getStorage('session')->deleteSession($authParams['client_id'], 'user', $authParams['user_id']);
+
+            // Generate a new access token
+            $accessToken = SecureKey::make();
+
+            // Compute expiry time
+            $accessTokenExpires = time() + $this->authServer->getExpiresIn();
+
+            // Create a new session
+            $sessionId = $this->authServer->getStorage('session')->createSession(
+                $authParams['client_id'],
+                $authParams['redirect_uri'],
+                'user',
+                $authParams['user_id'],
+                null,
+                $accessToken,
+                null,
+                $accessTokenExpires,
+                'granted'
+            );
+
+            // Associate scopes with the new session
+            foreach ($authParams['scopes'] as $scope)
+            {
+                $this->authServer->getStorage('session')->associateScope($sessionId, $scope['id']);
+            }
+
+            $response = array(
+                'access_token'  =>  $accessToken
+            );
+
+            return $response;
+        }
+    }
+
+}