Removing Laravel Environment Variables From Airbrake Notices

- PHP, LARAVEL, LOGGING

When I first started using Airbrake I was impressed by the amount of detail gathered by each tab of the notice. But when I started to inspect the “env” tab I notice that sensitive data such as database passwords where being logged from my Laravel project.

This occurs because Laravel uses a package called DotEnv which loads variables set in the project’s .env file into the $_SERVER super global. Each time the Airbrake package builds a notice, the super globals $_SESSION, $_REQUEST and $_SERVER are copied and sent along with the error message and context data.

To stop sensitive data ending up in the logs, Airbrake’s API has a method called “filter” which allows you to add callbacks which can edit each error notice before it is sent. To automate the removal of environment variables from the logs I have created a Laravel service provider for Airbrake.

The service provider will configure an instance of Airbrake\Notifier with an ID, key and environment name. The service provider will also register a filter that loops through unseting variables set in the .env file from notices. Any variable set in the .env file will appear with a value of “FILTERED” in the env tab of an Airbrake report.