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Merge pull request #44 from helix-bridge/xiaoch05-lnbridge-v3
lnbridge v3
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.17; | ||
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| import "@zeppelin-solidity/contracts/proxy/utils/Initializable.sol"; | ||
| import "./base/LnBridgeSourceV3.sol"; | ||
| import "./base/LnBridgeTargetV3.sol"; | ||
| import "../interfaces/IMessager.sol"; | ||
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| contract HelixLnBridgeV3 is Initializable, LnBridgeSourceV3, LnBridgeTargetV3 { | ||
| struct MessagerService { | ||
| address sendService; | ||
| address receiveService; | ||
| } | ||
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| // remoteChainId => messager | ||
| mapping(uint256=>MessagerService) public messagers; | ||
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| receive() external payable {} | ||
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| function initialize(address dao) public initializer { | ||
| _initialize(dao); | ||
| } | ||
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| // the remote endpoint is unique, if we want multi-path to remote endpoint, then the messager should support multi-path | ||
| function setSendService(uint256 _remoteChainId, address _remoteBridge, address _service) external onlyDao { | ||
| messagers[_remoteChainId].sendService = _service; | ||
| ILowLevelMessageSender(_service).registerRemoteReceiver(_remoteChainId, _remoteBridge); | ||
| } | ||
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| function setReceiveService(uint256 _remoteChainId, address _remoteBridge, address _service) external onlyDao { | ||
| messagers[_remoteChainId].receiveService = _service; | ||
| ILowLevelMessageReceiver(_service).registerRemoteSender(_remoteChainId, _remoteBridge); | ||
| } | ||
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| function _sendMessageToSource(uint256 _remoteChainId, bytes memory _payload, uint256 feePrepaid, bytes memory _extParams) whenNotPaused internal override { | ||
| address sendService = messagers[_remoteChainId].sendService; | ||
| require(sendService != address(0), "invalid messager"); | ||
| ILowLevelMessageSender(sendService).sendMessage{value: feePrepaid}(_remoteChainId, _payload, _extParams); | ||
| } | ||
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| function _verifyRemote(uint256 _remoteChainId) whenNotPaused internal view override { | ||
| address receiveService = messagers[_remoteChainId].receiveService; | ||
| require(receiveService == msg.sender, "invalid messager"); | ||
| } | ||
| } | ||
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