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operator role

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This commit is contained in:
Alexey 2019-08-02 20:12:30 +03:00
parent aa88f1c04e
commit 9b4d3bc34e
4 changed files with 62 additions and 11 deletions
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11
contracts/MerkleTreeWithHistory.sol
View file

@ -1,3 +1,14 @@
// https://tornado.cash
/*
* d888888P dP a88888b. dP
* 88 88 d8' `88 88
* 88 .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b. 88 .d8888b. .d8888b. 88d888b.
* 88 88' `88 88' `88 88' `88 88' `88 88' `88 88' `88 88 88' `88 Y8ooooo. 88' `88
* 88 88. .88 88 88 88 88. .88 88. .88 88. .88 dP Y8. .88 88. .88 88 88 88
* dP `88888P' dP dP dP `88888P8 `88888P8 `88888P' 88 Y88888P' `88888P8 `88888P' dP dP
* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
*/
pragma solidity ^0.5.8;
library MiMC {

31
contracts/Mixer.sol
View file

@ -1,3 +1,14 @@
// https://tornado.cash
/*
* d888888P dP a88888b. dP
* 88 88 d8' `88 88
* 88 .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b. 88 .d8888b. .d8888b. 88d888b.
* 88 88' `88 88' `88 88' `88 88' `88 88' `88 88' `88 88 88' `88 Y8ooooo. 88' `88
* 88 88. .88 88 88 88 88. .88 88. .88 88. .88 dP Y8. .88 88. .88 88 88 88
* dP `88888P' dP dP dP `88888P8 `88888P8 `88888P' 88 Y88888P' `88888P8 `88888P' dP dP
* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
*/
pragma solidity ^0.5.8;
import "./MerkleTreeWithHistory.sol";
@ -9,7 +20,9 @@ contract IVerifier {
contract Mixer is MerkleTreeWithHistory {
uint256 public transferValue;
bool public isDepositsEnabled = true;
address public pauseAccount;
// operator can disable new deposits in case of emergency
// it also receives a relayer fee
address payable public operator;
mapping(uint256 => bool) public nullifierHashes;
// we store all commitments just to prevent accidental deposits with the same commitment
mapping(uint256 => bool) public commitments;
@ -28,11 +41,11 @@ contract Mixer is MerkleTreeWithHistory {
uint256 _transferValue,
uint8 _merkleTreeHeight,
uint256 _emptyElement,
address _pauseAccount
address payable _operator
) MerkleTreeWithHistory(_merkleTreeHeight, _emptyElement) public {
verifier = IVerifier(_verifier);
transferValue = _transferValue;
pauseAccount = _pauseAccount;
operator = _operator;
}
/**
@ -62,27 +75,27 @@ contract Mixer is MerkleTreeWithHistory {
address payable receiver = address(input[2]);
uint256 fee = input[3];
require(fee < transferValue, "Fee exceeds transfer value");
require(!nullifierHashes[nullifierHash], "The note has been already spent");
require(fee < transferValue, "Fee exceeds transfer value");
require(isKnownRoot(root), "Cannot find your merkle root"); // Make sure to use a recent one
require(verifier.verifyProof(a, b, c, input), "Invalid withdraw proof");
nullifierHashes[nullifierHash] = true;
receiver.transfer(transferValue - fee);
if (fee > 0) {
msg.sender.transfer(fee);
operator.transfer(fee);
}
emit Withdraw(receiver, nullifierHash, fee);
}
function toggleDeposits() external {
require(msg.sender == pauseAccount, "unauthorized");
require(msg.sender == operator, "unauthorized");
isDepositsEnabled = !isDepositsEnabled;
}
function setPauseAccount(address _newAccount) external {
require(msg.sender == pauseAccount, "unauthorized");
pauseAccount = _newAccount;
function changeOperator(address payable _newAccount) external {
require(msg.sender == operator, "unauthorized");
operator = _newAccount;
}
function isSpent(uint256 nullifier) public view returns(bool) {