The purpose of this tool is to check if an application is anonymizing IPs when submitting information to Google Analytics.
All you need to do is install the GitHub application found here: Coming soon!
You also need to be using a deployment implementation on GitHub. (ex. Heroku's Review apps).
The tool is designed as GitHub application that subscribes to deployment events (https://developer.github.com/v3/repos/deployments/) on pull request branches. The specific use case at CDS targets Heroku's Review apps, which are created on every push to a branch.
Once the application receives the event, it extracts the URL for the application, loads the URL using Puppeteer, and executes a check on the loaded JavaScript to see if Google Analytics is installed and how it is configured. If the the tool finds that Google Analytics is not anonymizing the IP then it creates an issue in the GitHub repository that initiated the check.
The tool is implemented as a Google Cloud function. Any merges to master are automatically deployed after testing passes using Google's Cloud build service (check cloudbuild.yaml for more information). Google's Firestore is used a database to ensure that issues are only created on per branch. As mentioned above, Puppeteer is used to execute the check.
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