RSK Registrar

RNS Registrar for rsk top level domain.¹

Contracts

The registrar is separated into several components for simplicity, modularity, and privilege minimization.

RSK Owner

Owner of rsk top level domain. It can setSubdomainOwner in RNS.

• It represents domain ownership implementing ERC-721¹ non-fungible token standard. This standard provides basic functionality to track and transfer NFTs².
• Stores domains' expiration time. The expiration time determines wether a domain is owned or not.
• Determines if a domain is available to be purchased.
• Accepts domain ownership clamming from previous rsk registrar.
• Grants access to other contracts for registering new domains (registrar role)².
• Grants access to other contracts for renewing domains (renewer role)².
• Allows to reclaim ownership in RNS of owned domains.
• It has an owner that can²
  • Change rsk tld resolver and ttl.
  • Add/remove registrar contracts.
  • Add/remove renewer contracts.

MainNet: 0x45d3e4fb311982a06ba52359d44cb4f5980e0ef1

TestNet: 0xca0a477e19bac7e0e172ccfd2e3c28a7200bdb71

FIFS Registrar

Has registration role in RSK Owner.

• Defines a commit-reveal process to avoid front-running.
• Accepts payments via
  • ERC-20 approve() + register().³
  • ERC-677 transferAndCall().⁴
• Calculates price using NamePrice contract.
• It has an owner that can²
  • Set minimum commitment age.
  • Set minimum registration name length available.
  • Change name price contract.

The registration must be performed as follows:

0. Calculate makeCommitment hash of the domain to be registered (off-chain).
1. Commit the calculated hash using commit.
2. Wait minCommitmentAge seconds.
3. Execute registration via ERC-20 (with approval) or ERC-677.

Find transferAndCall() encoder in utils/index.js, getRegisterData

MainNet: 0x779195c53cc7c1a33bd2eea5f63f2c1da8798d61

TestNet: 0x36ffda909f941950a552011f2c50569fda14a169

FIFS Addr Registrar

Has registration role in RSK Owner.

• Adds an extra functionality to FIFS Registrar: set address resolution in registration transaction.

The registration must be performed following FIFS Registrar steps, adding address resolution in the last step.

Find transferAndCall() encoder in utils/index.js, getAddrRegisterData

MainNet: 0xd9c79ced86ecf49f5e4a973594634c83197c35ab

TestNet: 0x90734bd6bf96250a7b262e2bc34284b0d47c1e8d

Name Price

Determines the price of a domain.

Years	Price
1	2 RIF
2	4 RIF
2+k	4+k RIF

For example, 5 years cost 7 RIF.

MainNet: 0xd09adf13e482928e47e96dd6f02aad1daf7a5a47

TestNet: 0x794f99f1a9382ba88b453ddb4bfa00acae8d50e8

Renewer

Has renewer role in RSK Owner.

• Accepts payments via
  • ERC-20 approve() + register().³
  • ERC-677 transferAndCall().⁴
• Calculates price using NamePrice contract.
• It has an owner that can² change name price contract.

MainNet: 0x7a9872a7615c475b62a62b8f6e491077fb05f663

TestNet: 0xe48ad1d5fbf61394b5a7d81ab2f36736a046657b

JS

const Web3 = require('web3');
const FIFSRegistrarData = require('@rsksmart/rns-rskregistrar/FIFSRegistrarData.json');
const web3 = new Web3('https://public-node.rsk.co')
const FIFSRegistrar = new web3.eth.Contract(FIFSRegistrarData.abi, FIFSRegistrarData.address.rskMainnet);

Types

There are TypeScript typing definitions of the contracts published together with the original contracts. Supported contract's libraries are:

• web3 version 1.* - web3-v1-contracts
• web3 version 2.* - web3-v2-contracts
• truffle - truffle-contracts
• ethers - ethers-contracts

You can use them as follow:

import Web3 from 'web3'
import FIFSRegistrar from '@rsksmart/rns-rskregistrar/types/web3-v1-contracts/FIFSRegistrarData.d.ts'
import FIFSRegistrarData from '@rsksmart/rns-rskregistrar/FIFSRegistrarData.json'
const web3 = new Web3('https://public-node.rsk.co')
const registrar = new web3.eth.Contract(FIFSRegistrarData.abi, FIFSRegistrarData.address.rskMainnet) as FIFSRegistrar

Replace web3-v1-contracts with the proper library version.

Setup

npm install

Run tests

truffle test
slither .

Get truffle: https://www.trufflesuite.com/ Get slither:https://github.com/crytic/slither

Import contracts

npm i @rsksmart/rns-rskregistrar

References

1. Strongly based on https://github.com/ensdomains/ethregistrar.
2. https://github.com/OpenZeppelin/openzeppelin-contracts implementation.
3. https://eips.ethereum.org/EIPS/eip-20
4. ethereum/EIPs#677