GoogleHandler::checkHttpResponse

public function checkHttpResponse(HttpClient $http)
{
	$status = (int)$http->getStatus();
	if($status === 401)
	{
		$this->errorCollection[] = new Error(
			'Invalid credentials (401)', self::ERROR_CODE_INVALID_CREDENTIALS
		);
	}
	elseif($status === 403)
	{
		$headers = $http->getHeaders();
		$response = $http->getResult();
		$errorMessage = 'Unknown error';
		if($response && is_string($response))
		{
			$jsonResponse = Json::decode($response);
			if(isset($jsonResponse['error']['message']))
			{
				$errorMessage = $jsonResponse['error']['message'];
			}
			unset($jsonResponse, $response);
		}

		$headerAuthenticate = $headers->get('WWW-Authenticate');
		if(is_string($headerAuthenticate) && mb_strpos($headerAuthenticate, 'insufficient') !== false)
		{
			$this->errorCollection[] = new Error(
				'Insufficient scope (403)', self::ERROR_CODE_INSUFFICIENT_SCOPE
			);
			return false;
		}
		elseif(mb_strpos($errorMessage, 'The authenticated user has not installed the app with client') !== false)
		{
			$this->errorCollection[] = new Error(
				'The authenticated user has not installed the app (403)', self::ERROR_CODE_NOT_INSTALLED_APP
			);
		}
		elseif(mb_strpos($errorMessage, 'The authenticated user has not granted the app') !== false)
		{
			$this->errorCollection[] = new Error(
				'The authenticated user has not granted the app (403)', self::ERROR_CODE_NOT_GRANTED_APP
			);
		}
		elseif(mb_strpos($errorMessage, 'Invalid accessLevel') !== false)
		{
			$this->errorCollection[] = new Error(
				'Invalid accessLevel (403)', self::ERROR_CODE_INVALID_ACCESS_LEVEL
			);
		}
		elseif(mb_strpos($errorMessage, 'is not properly configured as a Google Drive app') !== false)
		{
			$this->errorCollection[] = new Error(
				'The app does not exist or is not properly configured as a Google Drive app (403)', self::ERROR_CODE_APP_NOT_CONFIGURED
			);
		}
		elseif(mb_strpos($errorMessage, 'is blacklisted') !== false)
		{
			$this->errorCollection[] = new Error(
				'The app is blacklisted as a Google Drive app. (403)', self::ERROR_CODE_APP_IN_BLACKLIST
			);
		}
		elseif($errorMessage)
		{
			$this->errorCollection[] = new Error(
				$errorMessage, self::ERROR_CODE_UNKNOWN
			);
		}
	}

	if($this->errorCollection->hasErrors())
	{
		return false;
	}

	return parent::checkHttpResponse($http);
}