diff --git a/app/assets/less/components/button.less b/app/assets/less/components/button.less
index 488399f..3c57b37 100644
--- a/app/assets/less/components/button.less
+++ b/app/assets/less/components/button.less
@@ -46,6 +46,7 @@
 .button-light { .button-variant(@text-light-color, @button-bg-color, @button-hover-color); }
 
 .button-github { .button-variant(@button-github-color, @button-github-bg); }
+.button-gitlab { .button-variant(@button-gitlab-color, @button-gitlab-bg); }
 .button-google { .button-variant(@button-google-color, @button-google-bg); }
 
 //    Outline
diff --git a/app/assets/less/variables.less b/app/assets/less/variables.less
index ad716d8..fb7f240 100644
--- a/app/assets/less/variables.less
+++ b/app/assets/less/variables.less
@@ -31,6 +31,7 @@
 @brand-info:        		hsl(210, 70%, 50%);
 @google-color:				#db4437;
 @github-color:				#4183c4;
+@gitlab-color:              #548;
 
 // ----------------------------------
 //   Font
@@ -112,6 +113,9 @@
 @button-github-bg:             @github-color;
 @button-github-border:         darken(@button-github-bg, 5%);
 
+@button-gitlab-color:          white;
+@button-gitlab-bg:             @gitlab-color;
+
 // ----------------------------------
 //   Shadows
 // ----------------------------------
diff --git a/app/config/conf.local.sample.yml b/app/config/conf.local.sample.yml
index f365936..8fa5619 100644
--- a/app/config/conf.local.sample.yml
+++ b/app/config/conf.local.sample.yml
@@ -13,13 +13,7 @@ database:
 
 # OAuth
 #oauth:
-  #security_salt: value
-  #debug: 1
-
-  #Strategy:
-  #  Google:
-  #    client_id:      value
-  #    client_secret:  value
-  #  GitHub:
-  #    client_id:      value
-  #    client_secret:  value
+  #providers:
+    #github:
+      #clientId: value
+      #clientSecret: value
diff --git a/app/config/services.php b/app/config/services.php
index 0193e1f..34d1fab 100644
--- a/app/config/services.php
+++ b/app/config/services.php
@@ -24,7 +24,8 @@ use Phalcon\Di\FactoryDefault,
     Phalcon\Mvc\Router;
 
 use Httpcb\Auth,
-    Httpcb\OAuth,
+    Httpcb\OAuth\Client as OAuthClient,
+    Httpcb\OAuth\Adapter\League as OAuthAdapter,
     Httpcb\Acl,
     Httpcb\Navigation,
     Httpcb\Menu;
@@ -120,7 +121,7 @@ $di->setShared('router', function() {
         'action' => 'logout',
     ))->setName('logout');
 
-    $router->add('/oauth/{strategy:([a-z]+)}/:params', array(
+    $router->add('/login/{strategy:([a-z]+)}/:params', array(
         'controller' => 'auth',
         'action' => 'oauth'
     ))->setName('oauth');
@@ -294,8 +295,18 @@ $di->setShared('flash', function () {
     return new Phalcon\Flash\Session();
 });
 
-$di->set('oauth', function() use ($config) {
-    return new OAuth($config);
+$di->set('oauth', function($provider) use ($config) {
+
+    if (isset($config->oauth->providers->{$provider})) {
+        $options = $config->oauth->providers->{$provider};
+        $options = $options->toArray();
+    } else {
+        $options = array();
+    }
+
+    $adapter = new OAuthAdapter($provider, $options);
+
+    return new OAuthClient($adapter);
 });
 
 $di->set('auth', function() use ($di, $config) {
diff --git a/app/controllers/AuthController.php b/app/controllers/AuthController.php
index bc4edae..b3a84ba 100644
--- a/app/controllers/AuthController.php
+++ b/app/controllers/AuthController.php
@@ -40,16 +40,31 @@ class AuthController extends ControllerBase
         $this->view->form = $form;
     }
 
-    public function oauthAction()
+    public function oauthAction($provider_name)
     {
-        $response = $this->oauth->perform();
+        $client = $this->getDI()->get('oauth', [ $provider_name ]);
 
-        if (is_array($response)) {
-            $this->auth->loginOauth($response['auth']);
-            $this->response->redirect('/');
-        } else {
-            $this->flash->message('error', 'Failed to authenticate.');
-            $this->response->redirect('/login');
+        $code = $this->request->get('code');
+        $state = $this->request->get('state');
+
+        // Have code. Authenticate and fetch data.
+        if (strlen($code) > 0) {
+
+            try {
+                // NOTE: Should pass $state here also.
+                $data = $client->authenticate($code);
+
+                $this->auth->loginOauth($data);
+                $this->response->redirect('/');
+            } catch(\Exception $e) {
+                $this->flash->message('error', 'Failed to authenticate.');
+                $this->response->redirect('/login');
+            }
+        }
+        // No code
+        else {
+            // redirect to provider and acquire code.
+            $this->response->redirect($client->getAuthorizationUrl(), true);
         }
     }
 
diff --git a/app/library/Auth.php b/app/library/Auth.php
index 0aa51b5..e6e2333 100644
--- a/app/library/Auth.php
+++ b/app/library/Auth.php
@@ -2,6 +2,7 @@
 
 namespace Httpcb;
 
+use Httpcb\OAuth\UserData\UserDataInterface;
 use Phalcon\Mvc\User\Component;
 use App\Model\Data\User;
 
@@ -42,24 +43,19 @@ class Auth extends Component
     /**
      * Login using OAuth
      *
-     * @param $auth
+     * @param UserDataInterface $auth
      */
-    public function loginOauth($auth)
+    public function loginOauth(UserDataInterface $auth)
     {
-        $email = '';
-        if (isset($auth['info']['email'])) {
-            $email = $auth['info']['email'];
-        }
-
         // Look for a user with this email.
-        $user = User::findFirstByEmail($email);
+        $user = User::findFirstByEmail($auth->getEmail());
 
         if (!$user) {
             // Did not find any user. create him.
-            if (isset($auth['info']['nickname'])) {
-                $name = $auth['info']['nickname'];
-            } else if(isset($auth['info']['name'])) {
-                $name = $auth['info']['name'];
+            if (strlen($auth->getUsername()) > 0) {
+                $name = $auth->getUsername();
+            } else if(strlen($auth->getName()) > 0) {
+                $name = $auth->getName();
             } else {
                 $name = '';
             }
@@ -74,7 +70,7 @@ class Auth extends Component
         $this->setIdentity($user->getId());
 
         $this->_eventsManager->fire('auth:onLogin', $this,
-            "OAuth {$auth['provider']}");
+            "OAuth {$auth->getProvider()}");
     }
 
     /**
diff --git a/app/library/OAuth.php b/app/library/OAuth.php
deleted file mode 100644
index c08de76..0000000
--- a/app/library/OAuth.php
+++ /dev/null
@@ -1,103 +0,0 @@
-<?php
-
-namespace Httpcb;
-
-use Phalcon\Mvc\User\Component;
-
-use Opauth;
-
-class OAuth extends Component
-{
-    /**
-     * Configuration
-     *
-     * @var array
-     */
-    protected $_config = array(
-        'path'         => '/oauth/',
-        'callback_url' => '/oauth/callback'
-    );
-
-    protected $_oauth;
-
-    protected $_callbackName = 'callback';
-
-    public function __construct($config)
-    {
-        $config = $this->objectToArray($config->oauth);
-
-        $this->_config = array_merge($this->_config, $config);
-
-        $this->_oauth = new Opauth($this->_config, false);
-    }
-
-    /**
-     * @return mixed|null|void
-     */
-    public function perform()
-    {
-        $strategy = $this->dispatcher->getParam('strategy', null, false);
-
-        if ($strategy == $this->_callbackName) {
-            return $this->getResponse();
-        }
-
-        $this->_oauth->run();
-        exit;
-    }
-
-    /**
-     * @return array|string
-     */
-    public function getResponse()
-    {
-        $response = null;
-        switch($this->_oauth->env['callback_transport']) {
-            case 'session':
-                $response = $this->session->get('opauth');
-                $this->session->remove('opauth');
-                break;
-            case 'post':
-                $response = unserialize(base64_decode( $_POST['opauth'] ));
-                break;
-            case 'get':
-                $response = unserialize(base64_decode( $_GET['opauth'] ));
-                break;
-        }
-
-        $ret = $this->_validate($response, $reason);
-        if ($ret === false) {
-            return $reason;
-        }
-        return $response;
-    }
-
-    public function objectToArray($object)
-    {
-        if(!is_object($object) && !is_array($object))
-        {
-            return $object;
-        }
-        if(is_object($object))
-        {
-            $object = get_object_vars( $object );
-        }
-        return array_map(array($this,"objectToArray"), $object );
-    }
-
-    protected function _validate($response, &$reason)
-    {
-        if (isset($response['auth']) &&
-            isset($response['timestamp']) &&
-            isset($response['signature'])) {
-
-            $hash = sha1(print_r($response['auth'], true));
-
-            return $this->_oauth->validate($hash, $response['timestamp'],
-                        $response['signature'], $reason);
-        }
-
-        $reason = "Invalid auth response";
-        return false;
-    }
-}
diff --git a/app/library/OAuth/Adapter/AdapterInterface.php b/app/library/OAuth/Adapter/AdapterInterface.php
new file mode 100644
index 0000000..676a6f2
--- /dev/null
+++ b/app/library/OAuth/Adapter/AdapterInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Httpcb\OAuth\Adapter;
+
+interface AdapterInterface
+{
+    /**
+     * Construct a adapter object.
+     *
+     * @param string $provider_name
+     * @param array $options
+     */
+    public function __construct($provider_name, $options);
+
+    /**
+     * Get the provider name
+     *
+     * @return string
+     */
+    public function getProviderName();
+
+    /**
+     * Get the authorization url.
+     *
+     * @return string
+     */
+    public function getAuthorizationUrl();
+
+    /**
+     * Fetch the AccessToken using the temporary code returned from provider.
+     *
+     * @param $code
+     * @return
+     */
+    public function fetchAccessToken($code);
+
+    /**
+     * Get resource data from provider.
+     *
+     * @return array
+     */
+    public function getResourceData();
+}
diff --git a/app/library/OAuth/Adapter/League.php b/app/library/OAuth/Adapter/League.php
new file mode 100644
index 0000000..cf85b14
--- /dev/null
+++ b/app/library/OAuth/Adapter/League.php
@@ -0,0 +1,88 @@
+<?php
+
+namespace Httpcb\OAuth\Adapter;
+
+use League\OAuth2\Client\Provider\AbstractProvider,
+    League\OAuth2\Client\Token\AccessToken;
+
+class League implements AdapterInterface
+{
+    /**
+     * List of all supported providers and their class name.
+     *
+     * @var array
+     */
+    protected $_providerClasses = array(
+        'github' => '\League\OAuth2\Client\Provider\Github',
+        'gitlab' => '\Omines\OAuth2\Client\Provider\Gitlab',
+    );
+
+    /**
+     * @var AbstractProvider
+     */
+    protected $_provider;
+
+    /**
+     * @var AccessToken
+     */
+    protected $_accessToken;
+
+    protected $_options;
+
+    /**
+     * {@inheritDoc}
+     * @throws Exception
+     */
+    public function __construct($provider_name, $options)
+    {
+        if (!array_key_exists($provider_name, $this->_providerClasses)) {
+            throw new Exception("Provider '{$provider_name}' is not supported.");
+        }
+
+        $className = $this->_providerClasses[$provider_name];
+        $provider = new $className($options);
+
+        if (!($provider instanceof AbstractProvider)) {
+            // TODO: Throw a better exception class :)
+            throw new Exception("Provider object must be an instance of League\\OAuth2\\Client\\Provider\\AbstractProvider");
+        }
+
+        $this->_provider = $provider;
+        $this->_options = $options;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getProviderName()
+    {
+        return (new \ReflectionClass($this->_provider))->getShortName();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getAuthorizationUrl()
+    {
+        return $this->_provider->getAuthorizationUrl($this->_options);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function fetchAccessToken($code)
+    {
+        $this->_accessToken = $this->_provider->getAccessToken('authorization_code', [
+            'code' => $code
+        ]);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getResourceData()
+    {
+        $resource = $this->_provider->getResourceOwner($this->_accessToken);
+        return $resource->toArray();
+    }
+}
diff --git a/app/library/OAuth/Client.php b/app/library/OAuth/Client.php
new file mode 100644
index 0000000..be703e8
--- /dev/null
+++ b/app/library/OAuth/Client.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Httpcb\OAuth;
+
+use Httpcb\OAuth\Adapter\AdapterInterface;
+
+class Client
+{
+    /**
+     * Adapter to use.
+     *
+     * @var AdapterInterface
+     */
+    protected $_adapter;
+
+    /**
+     * Access Token
+     *
+     * @var string
+     */
+    protected $_token;
+
+    public function __construct(AdapterInterface $adapter)
+    {
+        $this->_adapter = $adapter;
+    }
+
+    public function getAuthorizationUrl()
+    {
+        return $this->_adapter->getAuthorizationUrl();
+    }
+
+    /**
+     * @param string $code
+     * @return UserDataInterface
+     */
+    public function authenticate($code)
+    {
+        $this->_adapter->fetchAccessToken($code);
+
+        return $this->getUserData();
+    }
+
+    /**
+     * @return UserDataInterface
+     */
+    public function getUserData()
+    {
+        $data = $this->_adapter->getResourceData();
+        return $this->_createUserData($data);
+    }
+
+    protected function _createUserData(array $data)
+    {
+        $name = $this->_adapter->getProviderName();
+        $class = "Httpcb\\OAuth\\UserData\\{$name}";
+        return new $class($data);
+    }
+}
diff --git a/app/library/OAuth/UserData/Github.php b/app/library/OAuth/UserData/Github.php
new file mode 100644
index 0000000..d8b4d13
--- /dev/null
+++ b/app/library/OAuth/UserData/Github.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Httpcb\OAuth\UserData;
+
+class Github implements UserDataInterface
+{
+    protected $data;
+
+    /**
+     * {@inheritDoc}
+     */
+    public function __construct(array $data)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getProvider()
+    {
+        return 'Github';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getId()
+    {
+        return (int) $this->data['id'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getUsername()
+    {
+        return $this->data['login'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getName()
+    {
+        return $this->data['name'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getEmail()
+    {
+        return $this->data['email'];
+    }
+}
diff --git a/app/library/OAuth/UserData/Gitlab.php b/app/library/OAuth/UserData/Gitlab.php
new file mode 100644
index 0000000..697747a
--- /dev/null
+++ b/app/library/OAuth/UserData/Gitlab.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Httpcb\OAuth\UserData;
+
+class Gitlab implements UserDataInterface
+{
+    protected $data;
+
+    /**
+     * {@inheritDoc}
+     */
+    public function __construct(array $data)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getProvider()
+    {
+        return 'Gitlab';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getId()
+    {
+        return (int) $this->data['id'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getUsername()
+    {
+        return $this->data['username'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getName()
+    {
+        return $this->data['name'];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getEmail()
+    {
+        return $this->data['email'];
+    }
+}
diff --git a/app/library/OAuth/UserData/UserDataInterface.php b/app/library/OAuth/UserData/UserDataInterface.php
new file mode 100644
index 0000000..cf489a3
--- /dev/null
+++ b/app/library/OAuth/UserData/UserDataInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Httpcb\OAuth\UserData;
+
+interface UserDataInterface
+{
+    public function __construct(array $data);
+
+    /**
+     * The providers name.
+     *
+     * @return string
+     */
+    public function getProvider();
+
+    /**
+     * Owners ID (userid)
+     *
+     * @return string
+     */
+    public function getId();
+
+    /**
+     * the username
+     *
+     * @return string
+     */
+    public function getUsername();
+
+    /**
+     * Full name.
+     *
+     * @return string
+     */
+    public function getName();
+
+    /**
+     * Email address
+     *
+     * @return string
+     */
+    public function getEmail();
+}
diff --git a/app/views/auth/index.volt b/app/views/auth/index.volt
index 90f8a71..491d2c6 100644
--- a/app/views/auth/index.volt
+++ b/app/views/auth/index.volt
@@ -37,6 +37,10 @@
         <a class="button button-google" href="{{ url(['for': 'oauth', 'strategy': 'google']) }}">
             {{ icon('social-google') }} Google
         </a>
+
+        <a class="button button-gitlab" href="{{ url(['for': 'oauth', 'strategy': 'gitlab']) }}">
+            Gitlab
+        </a>
     </div>
 </div>
 
diff --git a/composer.json b/composer.json
index 4515289..27c26ec 100644
--- a/composer.json
+++ b/composer.json
@@ -1,8 +1,9 @@
 {
     "require": {
         "robmorgan/phinx": "^0.9.2",
-        "opauth/google": "^0.2.2",
-        "opauth/twitter": "^0.3.1",
-        "opauth/github": "^0.1.0"
+        "league/oauth2-client": "^2.3",
+        "league/oauth2-github": "^2.0",
+        "league/oauth2-google": "^2.2",
+        "omines/oauth2-gitlab": "^3.1"
     }
 }
diff --git a/composer.lock b/composer.lock
index 711d59a..c412c31 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,123 +4,106 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "36a75ff648970b9639580a2cb7013090",
-    "content-hash": "ac20c7c56c417cb600cb228332de7513",
+    "hash": "7d98cc9a7b6f4f79576273e599f7b1f4",
+    "content-hash": "0fd142e805b37679388bfea151fd3970",
     "packages": [
         {
-            "name": "opauth/github",
-            "version": "0.1.0",
+            "name": "guzzlehttp/guzzle",
+            "version": "6.3.2",
             "source": {
                 "type": "git",
-                "url": "https://github.com/opauth/github.git",
-                "reference": "9c4fe16dc6498b2c94f4c2a41ab93b0fe4b7fa73"
+                "url": "https://github.com/guzzle/guzzle.git",
+                "reference": "68d0ea14d5a3f42a20e87632a5f84931e2709c90"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/opauth/github/zipball/9c4fe16dc6498b2c94f4c2a41ab93b0fe4b7fa73",
-                "reference": "9c4fe16dc6498b2c94f4c2a41ab93b0fe4b7fa73",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/68d0ea14d5a3f42a20e87632a5f84931e2709c90",
+                "reference": "68d0ea14d5a3f42a20e87632a5f84931e2709c90",
                 "shasum": ""
             },
             "require": {
-                "opauth/opauth": ">=0.4.0",
-                "php": ">=5.2.0"
+                "guzzlehttp/promises": "^1.0",
+                "guzzlehttp/psr7": "^1.4",
+                "php": ">=5.5"
             },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "": "."
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "U-Zyn Chua",
-                    "email": "chua@uzyn.com",
-                    "homepage": "http://uzyn.com"
-                }
-            ],
-            "description": "GitHub authentication strategy for Opauth",
-            "homepage": "http://opauth.org",
-            "keywords": [
-                "Authentication",
-                "auth",
-                "github"
-            ],
-            "time": "2012-07-23 06:13:59"
-        },
-        {
-            "name": "opauth/google",
-            "version": "0.2.2",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/opauth/google.git",
-                "reference": "35df77684c14acb346a8c3753ae3809852d1a47e"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/opauth/google/zipball/35df77684c14acb346a8c3753ae3809852d1a47e",
-                "reference": "35df77684c14acb346a8c3753ae3809852d1a47e",
-                "shasum": ""
-            },
-            "require": {
-                "opauth/opauth": ">=0.2.0",
-                "php": ">=5.2.0"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "": "."
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "U-Zyn Chua",
-                    "email": "chua@uzyn.com",
-                    "homepage": "http://uzyn.com"
-                }
-            ],
-            "description": "Google strategy for Opauth",
-            "homepage": "http://opauth.org",
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-                "facebook",
-                "google",
-                "oauth",
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+                "promise"
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+            "time": "2016-12-20 10:07:11"
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-            "version": "0.3.2",
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+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
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+                    "email": "hello@alexbilbie.com",
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+                    "name": "Woody Gilk",
+                    "homepage": "https://github.com/shadowhand",
+                    "role": "Contributor"
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-            "homepage": "http://opauth.org",
+            "description": "OAuth 2.0 Client Library",
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                 "Authentication",
-                "auth",
-                "twitter"
+                "SSO",
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+                "identity",
+                "idp",
+                "oauth",
+                "oauth2",
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-            "time": "2017-03-28 05:03:36"
+            "time": "2018-01-13 05:27:58"
+        },
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