manager.php

	public function isEnabled() {

		$installed = $this->config->getSystemValue('installed', false);
		if (!$installed) {
			$this->logger->error('config.php installed was FALSE');
			$path = \OC::$SERVERROOT . '/config/config.php';
			if(file_exists(\OC::$SERVERROOT . '/config/config.php')) {
				$this->logger->error('config.php exists (path: ' . $path . '). Content:');
				$this->logger->error(file_get_contents(\OC::$SERVERROOT . '/config/config.php'));
			} else {
				$this->logger->error('config.php does NOT exists (path: ' . $path . ')');
			}

			return false;
		}

		$enabled = $this->config->getAppValue('core', 'encryption_enabled', 'debugDefault');

		if ($enabled !== 'yes') {
			$this->logger->error('Encryption NOT enabled. Value: ' . $enabled);
		}

		return $enabled === 'yes';
	}