1 files changed, 143 insertions, 0 deletions
diff --git a/app/Auth/GoogleAuth.php b/app/Auth/GoogleAuth.php
new file mode 100644
index 00000000..0dc1c62f
--- /dev/null
+++ b/app/Auth/GoogleAuth.php
@@ -0,0 +1,143 @@
+<?php
+
+namespace Kanboard\Auth;
+
+use Kanboard\Core\Base;
+use Kanboard\Core\Security\OAuthAuthenticationProviderInterface;
+use Kanboard\User\GoogleUserProvider;
+
+/**
+ * Google Authentication Provider
+ *
+ * @package  auth
+ * @author   Frederic Guillot
+ */
+class GoogleAuth extends Base implements OAuthAuthenticationProviderInterface
+{
+    /**
+     * User properties
+     *
+     * @access private
+     * @var \Kanboard\User\GoogleUserProvider
+     */
+    private $userInfo = null;
+
+    /**
+     * OAuth2 instance
+     *
+     * @access private
+     * @var \Kanboard\Core\Http\OAuth2
+     */
+    private $service;
+
+    /**
+     * OAuth2 code
+     *
+     * @access private
+     * @var string
+     */
+    private $code = '';
+
+    /**
+     * Get authentication provider name
+     *
+     * @access public
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Google';
+    }
+
+    /**
+     * Authenticate the user
+     *
+     * @access public
+     * @return boolean
+     */
+    public function authenticate()
+    {
+        $profile = $this->getProfile();
+
+        if (! empty($profile)) {
+            $this->userInfo = new GoogleUserProvider($profile);
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Set Code
+     *
+     * @access public
+     * @param  string  $code
+     * @return GoogleAuth
+     */
+    public function setCode($code)
+    {
+        $this->code = $code;
+        return $this;
+    }
+
+    /**
+     * Get user object
+     *
+     * @access public
+     * @return null|GoogleUserProvider
+     */
+    public function getUser()
+    {
+        return $this->userInfo;
+    }
+
+    /**
+     * Get configured OAuth2 service
+     *
+     * @access public
+     * @return \Kanboard\Core\Http\OAuth2
+     */
+    public function getService()
+    {
+        if (empty($this->service)) {
+            $this->service = $this->oauth->createService(
+                GOOGLE_CLIENT_ID,
+                GOOGLE_CLIENT_SECRET,
+                $this->helper->url->to('oauth', 'google', array(), '', true),
+                'https://accounts.google.com/o/oauth2/auth',
+                'https://accounts.google.com/o/oauth2/token',
+                array('https://www.googleapis.com/auth/userinfo.email', 'https://www.googleapis.com/auth/userinfo.profile')
+            );
+        }
+
+        return $this->service;
+    }
+
+    /**
+     * Get Google profile
+     *
+     * @access private
+     * @return array
+     */
+    private function getProfile()
+    {
+        $this->getService()->getAccessToken($this->code);
+
+        return $this->httpClient->getJson(
+            'https://www.googleapis.com/oauth2/v1/userinfo',
+            array($this->getService()->getAuthorizationHeader())
+        );
+    }
+
+    /**
+     * Unlink user
+     *
+     * @access public
+     * @param  integer $userId
+     * @return bool
+     */
+    public function unlink($userId)
+    {
+        return $this->user->update(array('id' => $userId, 'google_id' => ''));
+    }
+}