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feat: pauser role #47

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merged 4 commits into from
Nov 21, 2022
Merged

feat: pauser role #47

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1bbca39
feat: pauser role
technicallyty Nov 10, 2022
0e2cc22
chore: remove todo
technicallyty Nov 10, 2022
86029ba
chore: run yarn format
technicallyty Nov 10, 2022
fd1a22d
update pauser assignment for token issuer
ryanchristo Nov 21, 2022
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32 changes: 29 additions & 3 deletions contracts/ToucanRegenBridge.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ pragma solidity ^0.8.4;

import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";

import "./interfaces/IContractRegistry.sol";
import "./interfaces/ITCO2.sol";
Expand All @@ -14,7 +15,22 @@ import "./interfaces/INCTPool.sol";
*
* See README file for more information about the functionality
*/
contract ToucanRegenBridge is Ownable, Pausable {
contract ToucanRegenBridge is Ownable, Pausable, AccessControl {
// ----------------------------------------
// Roles
// ----------------------------------------

bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");

modifier onlyPauser() {
require(hasRole(PAUSER_ROLE, msg.sender), "caller does not have pauser role");
_;
}

// ----------------------------------------
// State
// ----------------------------------------

/// @notice total amount of tokens burned and signalled for transfer
uint256 public totalTransferred;

Expand Down Expand Up @@ -62,7 +78,9 @@ contract ToucanRegenBridge is Ownable, Pausable {
constructor(address tokenIssuer_, INCTPool nctPool_) Ownable() {
tokenIssuer = tokenIssuer_;
nctPool = nctPool_;
_grantRole(PAUSER_ROLE, msg.sender);
if (tokenIssuer_ != address(0)) {
_grantRole(PAUSER_ROLE, tokenIssuer_);
emit TokenIssuerUpdated(address(0), tokenIssuer_);
}
}
Expand All @@ -71,11 +89,11 @@ contract ToucanRegenBridge is Ownable, Pausable {
// Functions
// ----------------------------------------

function pause() external onlyOwner {
function pause() external onlyPauser {
_pause();
}

function unpause() external onlyOwner {
function unpause() external onlyPauser {
_unpause();
}

Expand All @@ -92,6 +110,14 @@ contract ToucanRegenBridge is Ownable, Pausable {
emit TokenIssuerUpdated(oldIssuer, newIssuer);
}

function grantPauserRole(address newPauser) external onlyOwner {
_grantRole(PAUSER_ROLE, newPauser);
}

function revokePauserRole(address pauser) external onlyOwner {
_revokeRole(PAUSER_ROLE, pauser);
}

/**
* @dev bridge tokens to Regen Network.
* Burns Toucan TCO2 compatible tokens and signals a bridge event.
Expand Down
15 changes: 14 additions & 1 deletion test/ToucanRegenBridge.js
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Original file line number Diff line number Diff line change
Expand Up @@ -52,10 +52,23 @@ describe("Bridge contract", function () {
await bridge.connect(admin).unpause();
expect(await bridge.paused()).equal(false);

await expect(bridge.connect(broker).pause()).to.be.revertedWith("Ownable: caller is not the owner");
await expect(bridge.connect(broker).pause()).to.be.revertedWith("caller does not have pauser role");
expect(await bridge.paused()).equal(false);
});

it("should pause only with pauser role", async function () {
await bridge.connect(admin).grantPauserRole(broker.address);

await bridge.connect(broker).pause();
expect(await bridge.paused()).equal(true);

await bridge.connect(broker).unpause();
expect(await bridge.paused()).equal(false);

await bridge.connect(admin).revokePauserRole(broker.address);
await expect(bridge.connect(broker).pause()).to.be.revertedWith("caller does not have pauser role");
});

describe("Polygon to Regen", function () {
it("should fail with non positive amount", async function () {
await expect(bridge.connect(broker).bridge(regenUser, tco2.address, 0)).to.be.revertedWith(
Expand Down