wormhole/ethereum/contracts/Implementation.sol

65 lines
1.9 KiB
Solidity

// contracts/Implementation.sol
// SPDX-License-Identifier: Apache 2
pragma solidity ^0.8.0;
pragma experimental ABIEncoderV2;
import "./Governance.sol";
import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol";
contract Implementation is Governance {
event LogMessagePublished(address indexed sender, uint32 nonce, bytes payload, bool persistMessage);
// Publish a message to be attested by the Wormhole network
function publishMessage(
uint32 nonce,
bytes memory payload,
bool persistMessage
) public payable {
// check fee
if( persistMessage ) {
require(msg.value == persistedMessageFee(), "invalid fee");
} else {
require(msg.value == messageFee(), "invalid fee");
}
// emit log
emit LogMessagePublished(msg.sender, nonce, payload, persistMessage);
}
function initialize(address[] memory initialGuardians, uint16 chainId, uint16 governanceChainId, bytes32 governanceContract) initializer public {
require(initialGuardians.length > 0, "no guardians specified");
Structs.GuardianSet memory initialGuardianSet = Structs.GuardianSet({
keys : initialGuardians,
expirationTime : 0
});
storeGuardianSet(initialGuardianSet, 0);
// initial guardian set index is 0, which is the default value of the storage slot anyways
setChainId(chainId);
setGovernanceChainId(governanceChainId);
setGovernanceContract(governanceContract);
}
modifier initializer() {
address implementation = ERC1967Upgrade._getImplementation();
require(
!isInitialized(implementation),
"already initialized"
);
setInitialized(implementation);
_;
}
fallback() external payable {revert("unsupported");}
receive() external payable {revert("the Wormhole contract does not accept assets");}
}