- Contract name:
- Timelock
- Optimization enabled
- true
- Compiler version
- v0.8.4+commit.c7e474f2
- Optimization runs
- 200
- EVM Version
- default
- Verified at
- 2022-04-19T06:24:28.842468Z
Constructor Arguments
000000000000000000000000226a5f23e8af08e0a04ab7dc917d8e3e79c74913000000000000000000000000000000000000000000000000000000000000a8c0
Arg [0] (address) : 0x226a5f23e8af08e0a04ab7dc917d8e3e79c74913
Arg [1] (uint256) : 43200
Contract source code
// Sources flattened with hardhat v2.9.3 https://hardhat.org
// File contracts/tools/Timelock.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.4;
contract Timelock {
event NewAdmin(address indexed newAdmin);
event NewPendingAdmin(address indexed newPendingAdmin);
event NewDelay(uint256 indexed newDelay);
event CancelTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
event ExecuteTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
event QueueTransaction(
bytes32 indexed txHash,
address indexed target,
uint256 value,
string signature,
bytes data,
uint256 eta
);
uint256 public constant GRACE_PERIOD = 14 days;
uint256 public constant MINIMUM_DELAY = 12 hours;
uint256 public constant MAXIMUM_DELAY = 30 days;
address public admin;
address public pendingAdmin;
uint256 public delay;
mapping(bytes32 => bool) public queuedTransactions;
constructor(address admin_, uint256 delay_) {
require(delay_ >= MINIMUM_DELAY, "Timelock::constructor: Delay must exceed minimum delay.");
require(
delay_ <= MAXIMUM_DELAY,
"Timelock::setDelay: Delay must not exceed maximum delay."
);
admin = admin_;
delay = delay_;
}
function setDelay(uint256 delay_) public {
require(msg.sender == address(this), "Timelock::setDelay: Call must come from Timelock.");
require(delay_ >= MINIMUM_DELAY, "Timelock::setDelay: Delay must exceed minimum delay.");
require(
delay_ <= MAXIMUM_DELAY,
"Timelock::setDelay: Delay must not exceed maximum delay."
);
delay = delay_;
emit NewDelay(delay);
}
function acceptAdmin() public {
require(
msg.sender == pendingAdmin,
"Timelock::acceptAdmin: Call must come from pendingAdmin."
);
admin = msg.sender;
pendingAdmin = address(0);
emit NewAdmin(admin);
}
function setPendingAdmin(address pendingAdmin_) public {
require(
msg.sender == address(this),
"Timelock::setPendingAdmin: Call must come from Timelock."
);
pendingAdmin = pendingAdmin_;
emit NewPendingAdmin(pendingAdmin);
}
function queueTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public returns (bytes32) {
require(msg.sender == admin, "Timelock::queueTransaction: Call must come from admin.");
require(
eta >= getBlockTimestamp() + delay,
"Timelock::queueTransaction: Estimated execution block must satisfy delay."
);
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = true;
emit QueueTransaction(txHash, target, value, signature, data, eta);
return txHash;
}
function cancelTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public {
require(msg.sender == admin, "Timelock::cancelTransaction: Call must come from admin.");
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
queuedTransactions[txHash] = false;
emit CancelTransaction(txHash, target, value, signature, data, eta);
}
function executeTransaction(
address target,
uint256 value,
string memory signature,
bytes memory data,
uint256 eta
) public payable returns (bytes memory) {
require(msg.sender == admin, "Timelock::executeTransaction: Call must come from admin.");
bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
require(
queuedTransactions[txHash],
"Timelock::executeTransaction: Transaction hasn't been queued."
);
require(
getBlockTimestamp() >= eta,
"Timelock::executeTransaction: Transaction hasn't surpassed time lock."
);
require(
getBlockTimestamp() <= (eta + GRACE_PERIOD),
"Timelock::executeTransaction: Transaction is stale."
);
queuedTransactions[txHash] = false;
bytes memory callData;
if (bytes(signature).length == 0) {
callData = data;
} else {
callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data);
}
// Execute the call
(bool success, bytes memory returnData) = target.call{value: value}(callData);
require(success, "Timelock::executeTransaction: Transaction execution reverted.");
emit ExecuteTransaction(txHash, target, value, signature, data, eta);
return returnData;
}
function getBlockTimestamp() internal view returns (uint256) {
return block.timestamp;
}
}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"admin_","internalType":"address"},{"type":"uint256","name":"delay_","internalType":"uint256"}]},{"type":"event","name":"CancelTransaction","inputs":[{"type":"bytes32","name":"txHash","internalType":"bytes32","indexed":true},{"type":"address","name":"target","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false},{"type":"string","name":"signature","internalType":"string","indexed":false},{"type":"bytes","name":"data","internalType":"bytes","indexed":false},{"type":"uint256","name":"eta","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"ExecuteTransaction","inputs":[{"type":"bytes32","name":"txHash","internalType":"bytes32","indexed":true},{"type":"address","name":"target","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false},{"type":"string","name":"signature","internalType":"string","indexed":false},{"type":"bytes","name":"data","internalType":"bytes","indexed":false},{"type":"uint256","name":"eta","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"NewAdmin","inputs":[{"type":"address","name":"newAdmin","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"NewDelay","inputs":[{"type":"uint256","name":"newDelay","internalType":"uint256","indexed":true}],"anonymous":false},{"type":"event","name":"NewPendingAdmin","inputs":[{"type":"address","name":"newPendingAdmin","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"QueueTransaction","inputs":[{"type":"bytes32","name":"txHash","internalType":"bytes32","indexed":true},{"type":"address","name":"target","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false},{"type":"string","name":"signature","internalType":"string","indexed":false},{"type":"bytes","name":"data","internalType":"bytes","indexed":false},{"type":"uint256","name":"eta","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"GRACE_PERIOD","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAXIMUM_DELAY","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MINIMUM_DELAY","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"acceptAdmin","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"admin","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"cancelTransaction","inputs":[{"type":"address","name":"target","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"string","name":"signature","internalType":"string"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint256","name":"eta","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"delay","inputs":[]},{"type":"function","stateMutability":"payable","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"executeTransaction","inputs":[{"type":"address","name":"target","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"string","name":"signature","internalType":"string"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint256","name":"eta","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"pendingAdmin","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"queueTransaction","inputs":[{"type":"address","name":"target","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"string","name":"signature","internalType":"string"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint256","name":"eta","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"queuedTransactions","inputs":[{"type":"bytes32","name":"","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setDelay","inputs":[{"type":"uint256","name":"delay_","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPendingAdmin","inputs":[{"type":"address","name":"pendingAdmin_","internalType":"address"}]}]
Deployed ByteCode
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