DataAccounting

This is a code extension for MediaWiki to implement the basic principles of DataAccounting. This is done by using the following modules:

• create a verified revision which is entangled into future revisions (hash-chain)
• cryptographically sign a verified revision via a wallet
• export verified revisions
• import verified revisions
• witness verified revisions on a witness network (e.g. Ethereum)

All Modules interface with the javascript frontend and the maria DB backend. To ensure that we have a modular approach to be able to easy maintain the extention we use Model-View-Controller to seperate functionalities clearly.

Installation

Follow the documentation of mediawiki to install the extension. https://www.mediawiki.org/wiki/Manual:Extensions#Installing_an_extension

Requirements:

• MediaWiki 1.35 or later
• PHP 7.4 or later. (with Composer)
• Node.js 10, or later. (with npm)

Testing

This extension implements the recommended entry points of Wikimedia CI for PHP and Front-end projects.

TODO: document or remove need to edit a page

Run composer update in the extensions/DataAccounting/ directory. This pulls in code analysis tools. You might want to mark extensions/DataAccounting/vendor/ as excluded in your IDE or tools to avoid them loading certain libraries twice.

Running tests and CI checks

You can use the Makefile by running make commands in the DataAccounting directory.

• make ci: Run everything - TODO: include front-end tests
• make test: Run all tests - TODO: include front-end tests
• make cs: Run all style checks and static analysis

See the Makefile contents for all commands and how to run them without Make.

Front-end

To run the checks for JavaScript, JSON, and CSS:

• Run npm install

This will install testing software to node_modules/ in the current directory/

Now, run npm test to run the automated front-end code checks.

Helpful comments

Login to docker 'docker exec -it pkc_database_1 bash' to enter the docker commandline. Access MYSQL Database: Inside the bash prompt: 'mysql -u wikiuser -p my_wiki' and enter your password which you can find in the dockercompose.yml file. SHOW DATABASES; USE my_wiki; SELECT * FROM revision_verification; SELECT * FROM page_witness;

If the extension is running and working, you will see entries in revision_verification after doing your first page edits with the extension activated.

2. cp -r DataAccounting PKC/mountPoint/extensions
3. docker exec pkc_mediawiki_1 php /var/www/html/maintenance/update.php *if you manually install DataAccounting extension you need to run the maintenance script to load the extension and update the sql database schemas