Sputnik DAO Factory Contract Interpretation

This article will provide an in-depth interpretation of the design implementation of the Sputnik DAO platform factory model contract (sputnikdao-factory).

1. Overview of Sputnik DAO Factory Contract

Sputnik DAO adopts a factory model to achieve the unified creation and management of the decentralized autonomous organization (DAO) under this platform. The factory contract mainly consists of two parts:

• factory_manager: Provides methods to create/delete/update DAO instances
• daos: The account addresses of all created DAO instances on the platform.

2. Create DAO

The core method for creating a DAO instance is create(). It mainly completes the following steps:

1. Construct the sub-account address of the new DAO
2. Call factory_manager.create_contract to deploy a new contract
3. Execute the callback function on_create to record new DAO information.

The main process of factory_manager.create_contract:

1. Load DAO contract template code
2. Create a new account and transfer funds.
3. Deploy Contract Code
4. Call the contract initialization function

3. Update DAO

The factory contract provides the update() method to upgrade the DAO contract. It will call factory_manager.update_contract to invoke the DAO contract's update() function.

4. Security Analysis

The main security measures of factory contracts include:

• The view method does not modify state variables.
• Privilege function adds permission check
• Error handling mechanism for abnormal situations
• Integrity check of the DAO creation process

A serious security vulnerability ( allowing any user to upgrade the DAO contract ) has been promptly fixed.

Overall, the Sputnik DAO factory contract achieves the unified creation and management of DAOs through reasonable design and adopts various security measures.