Google analytics OAuth 2 + Refresh Tokens

gistfile1.aw

<?php

class Controller_Metrics extends Controller {
	
	public function action_index()
	{
		if ( ! Auth::check())
		{
			exit('not logged in');
		}
		
		list($driver, $id) = Auth::get_user_id();
		
		$user = Model_User::find($id);
		
		// Find the authentication we want to work with
		$auth = Model_Authentication::find_by_provider_and_user_id('google', $user->id);
		
		// Lets do some stuff with google!
		\Config::load('ninjauth', true);
		$client = \OAuth2\Provider::forge('google', \Config::get('ninjauth.providers.google'));
		
		
		for ($i = 0; $i < 2; $i++)
		{
			try
			{
				$url = 'https://www.google.com/analytics/feeds/accounts/default';
		
				$request = Request::forge($url, 'curl');
		
				$request->set_params(array(
					'access_token' => $auth->access_token,
					'alt' => 'json'
				));
	
				$request = $request->execute();
			}
			
			// Request fail, let's see what type!
			catch (RequestException $e)
			{
				switch ($request->response()->status)
				{
					
					// Unauthorized
				 	case 401:
				
						// Are they unathorised because their token is out of date?
						if ($auth->expires <= time())
						{
							
							// Let's try and refresh the token!
							try
							{
								$token = $client->access($auth->refresh_token, array(
									'grant_type' => 'refresh_token',
								));
							}
							
							// Aww man?!
							catch (RequestException $e)
							{
								// Bitch and fail
								Debug::dump($request->response());
								exit('oh fuck it1');
							}
				
					
							// Update this authentication
							$auth->access_token = $token->access_token;
							$auth->expires = $token->expires;
							$auth->refresh_token = $token->refresh_token;
					
							$auth->save();
					
							// Back to the start
							continue;
						}
						
					break;
				}
			}	
			
			// No exception was throw so carry on
			break;
		}

		$json = json_decode($request->response()->body(), true);
		

		$accounts = \Arr::get($json, 'feed.entry');

		Debug::dump($accounts);
	
		// 
	}

}