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Cryptography and system security -- Voting on GitHub pull request comments with Ethereum Smart Contracts

A Project which was started during a university course at the University of Applied Science in Flensburg. The goal of this project is to implement and investigate a TCR like voting mechanism on Pull Requests comments on github.com. This is done via a chrome extension.

Visit our GitHub page at: https://c3ai-lab.github.io/BeGit/

How to install

  1. Login on GitHub
  2. Clone this repository
  3. In Chrome open this URL chrome://extensions/
  4. There should be a Button "Load unpacked", click it
  5. Choose the "Chrome Extension" directory from the downloaded Project
  6. Go to the settings of this extension
  7. There you MUST add a wallet address and private key
  8. Make sure to press safe
  9. Refresh page
  10. Change wallet to the newly created one within settings

How to use

  1. Login on GitHub
  2. Choose or add wallet
  3. Refresh
  4. Post or stake on comment
  5. Authorize GitHub with the popup if asked

How to modify

Should you want to expand or modify the code of the Smart Contracts install truffle by following the instructions detailed here: https://kauri.io/#article/549b50d2318741dbba209110bb9e350e

  1. Modify Smart Contract code to your liking
  2. Create migration file in Solidity/migrations
  3. Run "truffle migrate --network poa"
  4. Copy contract address from that output into parameter "parentAddress" within Chrome Extension/content.js
  5. Copy generated value abi from Solidity/build/contracts/CommentLib.js into parameter "parentAbi" within Chrome Extension/content.js
  6. Copy generated value abi from Solidity/build/contracts/Comment.js into parameter "childAbi" within Chrome Extension/content.js

Change Settings to your liking

You could change the settings for the blockchain used in the content.js, but by default the extension uses the sokol test network for Ethereum.

This Extension uses GitHub OAuth

You can login to Github via OAuth. You can change the settings for that. This extension works with a google hosted extension. NO NEED TO CHANGE THE SETTINGS The extension gets an ID which you can set in the manifest.json where the oauth2 settings are. You can find more about setting up the GitHub App here. It is important to copy the client_id and client_secret you get from the GitHub App and paste those into the oauth.js variables. The Callback URL should look like this https://[EXTENSION-ID].chromiumapp.org. As mentioned before, for using this extension you do not have to change the settings.

Your Options

You can:

  • post a comment with stake from your wallet
  • vote with a specified amount of tokens on a comment that was staked on
  • start the debug mode in the extension Pop-Up window and payout the tokens staked and voted with on a comment
  • save multiple wallets into the extension and switch between them

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