81 lines
3.0 KiB
Solidity
81 lines
3.0 KiB
Solidity
// contracts/Implementation.sol
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// SPDX-License-Identifier: Apache 2
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pragma solidity ^0.8.0;
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pragma experimental ABIEncoderV2;
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import "./Governance.sol";
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import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Upgrade.sol";
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contract Implementation is Governance {
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event LogMessagePublished(address indexed sender, uint64 sequence, uint32 nonce, bytes payload, uint8 consistencyLevel);
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// Publish a message to be attested by the Wormhole network
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function publishMessage(
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uint32 nonce,
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bytes memory payload,
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uint8 consistencyLevel
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) public payable returns (uint64 sequence) {
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// check fee
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require(msg.value == messageFee(), "invalid fee");
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sequence = useSequence(msg.sender);
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// emit log
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emit LogMessagePublished(msg.sender, sequence, nonce, payload, consistencyLevel);
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}
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function useSequence(address emitter) internal returns (uint64 sequence) {
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sequence = nextSequence(emitter);
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setNextSequence(emitter, sequence + 1);
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}
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function initialize() initializer public virtual {
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// this function needs to be exposed for an upgrade to pass
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if (evmChainId() == 0) {
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uint256 evmChainId;
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uint16 chain = chainId();
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// Wormhole chain ids explicitly enumerated
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if (chain == 2) { evmChainId = 1; // ethereum
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} else if (chain == 4) { evmChainId = 56; // bsc
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} else if (chain == 5) { evmChainId = 137; // polygon
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} else if (chain == 6) { evmChainId = 43114; // avalanche
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} else if (chain == 7) { evmChainId = 42262; // oasis
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} else if (chain == 9) { evmChainId = 1313161554; // aurora
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} else if (chain == 10) { evmChainId = 250; // fantom
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} else if (chain == 11) { evmChainId = 686; // karura
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} else if (chain == 12) { evmChainId = 787; // acala
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} else if (chain == 13) { evmChainId = 8217; // klaytn
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} else if (chain == 14) { evmChainId = 42220; // celo
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} else if (chain == 16) { evmChainId = 1284; // moonbeam
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} else if (chain == 17) { evmChainId = 245022934; // neon
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} else if (chain == 23) { evmChainId = 42161; // arbitrum
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} else if (chain == 24) { evmChainId = 10; // optimism
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} else if (chain == 25) { evmChainId = 100; // gnosis
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} else {
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revert("Unknown chain id.");
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}
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setEvmChainId(evmChainId);
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}
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}
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modifier initializer() {
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address implementation = ERC1967Upgrade._getImplementation();
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require(
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!isInitialized(implementation),
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"already initialized"
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);
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setInitialized(implementation);
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_;
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}
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fallback() external payable {revert("unsupported");}
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receive() external payable {revert("the Wormhole contract does not accept assets");}
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}
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