43 lines
1.1 KiB
Solidity
43 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.0;
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import { IAMB } from "./interfaces/IBridge.sol";
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import "@openzeppelin/contracts/proxy/TransparentUpgradeableProxy.sol";
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/**
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* @dev TransparentUpgradeableProxy where admin acts from a different chain.
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*/
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contract CrossChainUpgradeableProxy is TransparentUpgradeableProxy {
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IAMB public immutable ambBridge;
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bytes32 public immutable adminChainId;
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/**
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* @dev Initializes an upgradeable proxy backed by the implementation at `_logic`.
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*/
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constructor(
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address _logic,
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address _admin,
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bytes memory _data,
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IAMB _ambBridge,
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uint256 _adminChainId
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) TransparentUpgradeableProxy(_logic, _admin, _data) {
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ambBridge = _ambBridge;
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adminChainId = bytes32(uint256(_adminChainId));
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}
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/**
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* @dev Modifier used internally that will delegate the call to the implementation unless the sender is the cross chain admin.
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*/
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modifier ifAdmin() override {
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if (
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msg.sender == address(ambBridge) &&
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ambBridge.messageSourceChainId() == adminChainId &&
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ambBridge.messageSender() == _admin()
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) {
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_;
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} else {
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_fallback();
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}
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}
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}
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