47 lines
1.8 KiB
Solidity
47 lines
1.8 KiB
Solidity
// https://tornado.cash
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/*
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* d888888P dP a88888b. dP
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* 88 88 d8' `88 88
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* 88 .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b. 88 .d8888b. .d8888b. 88d888b.
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* 88 88' `88 88' `88 88' `88 88' `88 88' `88 88' `88 88 88' `88 Y8ooooo. 88' `88
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* 88 88. .88 88 88 88 88. .88 88. .88 88. .88 dP Y8. .88 88. .88 88 88 88
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* dP `88888P' dP dP dP `88888P8 `88888P8 `88888P' 88 Y88888P' `88888P8 `88888P' dP dP
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* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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*/
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import { IVerifier, IHasher, Tornado } from "./Tornado.sol";
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contract ETHTornado is Tornado {
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constructor(
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IVerifier _verifier,
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IHasher _hasher,
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uint256 _denomination,
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uint32 _merkleTreeHeight
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) Tornado(_verifier, _hasher, _denomination, _merkleTreeHeight) {}
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function _processDeposit() internal override {
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require(msg.value == denomination, "Please send `mixDenomination` ETH along with transaction");
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}
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function _processWithdraw(
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address payable _recipient,
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address payable _relayer,
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uint256 _fee,
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uint256 _refund
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) internal override {
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// sanity checks
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require(msg.value == 0, "Message value is supposed to be zero for ETH instance");
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require(_refund == 0, "Refund value is supposed to be zero for ETH instance");
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(bool success, ) = _recipient.call{ value: denomination - _fee }("");
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require(success, "payment to _recipient did not go thru");
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if (_fee > 0) {
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(success, ) = _relayer.call{ value: _fee }("");
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require(success, "payment to _relayer did not go thru");
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}
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}
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}
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