wormhole/ethereum/contracts/Implementation.sol

81 lines
3.0 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, uint64 sequence, uint32 nonce, bytes payload, uint8 consistencyLevel);
// Publish a message to be attested by the Wormhole network
function publishMessage(
uint32 nonce,
bytes memory payload,
uint8 consistencyLevel
) public payable returns (uint64 sequence) {
// check fee
require(msg.value == messageFee(), "invalid fee");
sequence = useSequence(msg.sender);
// emit log
emit LogMessagePublished(msg.sender, sequence, nonce, payload, consistencyLevel);
}
function useSequence(address emitter) internal returns (uint64 sequence) {
sequence = nextSequence(emitter);
setNextSequence(emitter, sequence + 1);
}
function initialize() initializer public virtual {
// this function needs to be exposed for an upgrade to pass
if (evmChainId() == 0) {
uint256 evmChainId;
uint16 chain = chainId();
// Wormhole chain ids explicitly enumerated
if (chain == 2) { evmChainId = 1; // ethereum
} else if (chain == 4) { evmChainId = 56; // bsc
} else if (chain == 5) { evmChainId = 137; // polygon
} else if (chain == 6) { evmChainId = 43114; // avalanche
} else if (chain == 7) { evmChainId = 42262; // oasis
} else if (chain == 9) { evmChainId = 1313161554; // aurora
} else if (chain == 10) { evmChainId = 250; // fantom
} else if (chain == 11) { evmChainId = 686; // karura
} else if (chain == 12) { evmChainId = 787; // acala
} else if (chain == 13) { evmChainId = 8217; // klaytn
} else if (chain == 14) { evmChainId = 42220; // celo
} else if (chain == 16) { evmChainId = 1284; // moonbeam
} else if (chain == 17) { evmChainId = 245022934; // neon
} else if (chain == 23) { evmChainId = 42161; // arbitrum
} else if (chain == 24) { evmChainId = 10; // optimism
} else if (chain == 25) { evmChainId = 100; // gnosis
} else {
revert("Unknown chain id.");
}
setEvmChainId(evmChainId);
}
}
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");}
}