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AvalancheICTTRouter.sol
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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: Copyright 2024 ADDPHO
// Compatible with OpenZeppelin Contracts 5.0.2
pragma solidity 0.8.25;
import {
DestinationBridge, IAvalancheICTTRouter
} from "../../interfaces/ICM/IAvalancheICTTRouter.sol";
import {WrappedNativeToken} from "@avalabs/icm-contracts/ictt/WrappedNativeToken.sol";
import {IERC20TokenTransferrer} from
"@avalabs/icm-contracts/ictt/interfaces/IERC20TokenTransferrer.sol";
import {INativeTokenTransferrer} from
"@avalabs/icm-contracts/ictt/interfaces/INativeTokenTransferrer.sol";
import {
SendAndCallInput,
SendTokensInput
} from "@avalabs/icm-contracts/ictt/interfaces/ITokenTransferrer.sol";
import {SafeERC20TransferFrom} from "@avalabs/icm-contracts/utilities/SafeERC20TransferFrom.sol";
import {IWarpMessenger} from
"@avalabs/[email protected]/contracts/interfaces/IWarpMessenger.sol";
import {Ownable} from "@openzeppelin/[email protected]/access/Ownable.sol";
import {IERC20} from "@openzeppelin/[email protected]/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/[email protected]/token/ERC20/utils/SafeERC20.sol";
import {Address} from "@openzeppelin/[email protected]/utils/Address.sol";
import {ReentrancyGuard} from "@openzeppelin/[email protected]/utils/ReentrancyGuard.sol";
import {EnumerableSet} from "@openzeppelin/[email protected]/utils/structs/EnumerableSet.sol";
/**
* @title AvalancheICTTRouter
* @author ADDPHO
* @notice The AvalancheICTTRouter allows users to bridge assets between Avalanche EVM L1s through canonical ICTT contracts.
* @custom:security-contact [email protected]
*/
contract AvalancheICTTRouter is Ownable, ReentrancyGuard, IAvalancheICTTRouter {
using Address for address;
using EnumerableSet for EnumerableSet.AddressSet;
using EnumerableSet for EnumerableSet.Bytes32Set;
/// @notice List of tokens supported by this router on the source chain
EnumerableSet.AddressSet internal tokensList;
/**
* @notice Token address => source bridge address
* @notice Address `0x0` is used for the native token
*/
mapping(address token => address sourceBridge) internal tokenToSourceBridge;
/**
* @notice Destination chain ID => token address => DestinationBridge
* @notice Address `0x0` is used for the native token
*/
mapping(
bytes32 destinationChainID => mapping(address token => DestinationBridge destinationBridge)
) internal tokenDestinationChainToDestinationBridge;
/**
* @notice Token Address => list of supported destination chains
* @notice Address `0x0` is used for the native token
*/
mapping(address token => EnumerableSet.Bytes32Set destinationChainIDsList) internal
tokenToDestinationChainsIDList;
/// @notice Router chain ID
bytes32 internal immutable routerChainID;
constructor(
address initialOwner
) Ownable(initialOwner) {
routerChainID = IWarpMessenger(0x0200000000000000000000000000000000000005).getBlockchainID();
}
/// @inheritdoc IAvalancheICTTRouter
function registerSourceTokenBridge(
address tokenAddress,
address bridgeAddress
) external onlyOwner {
if (tokenAddress != address(0) && tokenAddress.code.length == 0) {
revert AvalancheICTTRouter__TokenAddrNotAContract(tokenAddress);
}
if (bridgeAddress.code.length == 0) {
revert AvalancheICTTRouter__BridgeAddrNotAContract(bridgeAddress);
}
tokenToSourceBridge[tokenAddress] = bridgeAddress;
tokensList.add(tokenAddress);
emit RegisterSourceTokenBridge(tokenAddress, bridgeAddress);
}
/// @inheritdoc IAvalancheICTTRouter
function registerDestinationTokenBridge(
address tokenAddress,
bytes32 destinationChainID,
address bridgeAddress,
uint256 requiredGasLimit,
bool isMultihop
) external virtual onlyOwner {
_registerDestinationTokenBridge(
tokenAddress, destinationChainID, bridgeAddress, requiredGasLimit, isMultihop
);
}
/// @inheritdoc IAvalancheICTTRouter
function removeSourceTokenBridge(
address tokenAddress
) external onlyOwner {
delete tokenToSourceBridge[tokenAddress];
tokensList.remove(tokenAddress);
emit RemoveSourceTokenBridge(tokenAddress);
}
/// @inheritdoc IAvalancheICTTRouter
function removeDestinationTokenBridge(
address tokenAddress,
bytes32 destinationChainID
) external onlyOwner {
delete tokenDestinationChainToDestinationBridge[destinationChainID][
tokenAddress
];
tokenToDestinationChainsIDList[tokenAddress].remove(destinationChainID);
emit RemoveDestinationTokenBridge(tokenAddress, destinationChainID);
}
/// @inheritdoc IAvalancheICTTRouter
function bridgeERC20(
address tokenAddress,
bytes32 destinationChainID,
uint256 amount,
address recipient,
address multiHopFallback,
address primaryFeeTokenAddress,
uint256 primaryRelayerFee,
uint256 secondaryRelayerFee
) external virtual nonReentrant {
address bridgeSource = tokenToSourceBridge[tokenAddress];
DestinationBridge memory destinationBridge =
tokenDestinationChainToDestinationBridge[destinationChainID][tokenAddress];
uint256 adjustedAmount =
SafeERC20TransferFrom.safeTransferFrom(IERC20(tokenAddress), amount);
uint256 adjustedPrimaryFee = SafeERC20TransferFrom.safeTransferFrom(
IERC20(primaryFeeTokenAddress), primaryRelayerFee
);
if (!destinationBridge.isMultihop) {
secondaryRelayerFee = 0;
}
SafeERC20.safeIncreaseAllowance(IERC20(tokenAddress), bridgeSource, adjustedAmount);
SafeERC20.safeIncreaseAllowance(
IERC20(primaryFeeTokenAddress), bridgeSource, adjustedPrimaryFee
);
SendTokensInput memory input = SendTokensInput(
destinationChainID,
destinationBridge.bridgeAddress,
recipient,
primaryFeeTokenAddress,
adjustedPrimaryFee,
secondaryRelayerFee,
destinationBridge.requiredGasLimit,
multiHopFallback
);
IERC20TokenTransferrer(bridgeSource).send(input, adjustedAmount);
emit BridgeERC20(
tokenAddress,
destinationChainID,
recipient,
adjustedAmount,
adjustedPrimaryFee,
secondaryRelayerFee
);
}
/// @inheritdoc IAvalancheICTTRouter
function bridgeAndCallERC20(
address tokenAddress,
bytes32 destinationChainID,
uint256 amount,
address recipient,
bytes memory recipientPayload,
address recipientFallback,
uint256 recipientGasLimit,
address multiHopFallback,
address primaryFeeTokenAddress,
uint256 primaryRelayerFee,
uint256 secondaryRelayerFee
) external virtual nonReentrant {
address bridgeSource = tokenToSourceBridge[tokenAddress];
DestinationBridge memory destinationBridge =
tokenDestinationChainToDestinationBridge[destinationChainID][tokenAddress];
uint256 adjustedAmount =
SafeERC20TransferFrom.safeTransferFrom(IERC20(tokenAddress), amount);
uint256 adjustedPrimaryFee = SafeERC20TransferFrom.safeTransferFrom(
IERC20(primaryFeeTokenAddress), primaryRelayerFee
);
if (!destinationBridge.isMultihop) {
secondaryRelayerFee = 0;
}
SafeERC20.safeIncreaseAllowance(IERC20(tokenAddress), bridgeSource, adjustedAmount);
SafeERC20.safeIncreaseAllowance(
IERC20(primaryFeeTokenAddress), bridgeSource, adjustedPrimaryFee
);
SendAndCallInput memory input = SendAndCallInput(
destinationChainID,
destinationBridge.bridgeAddress,
recipient,
recipientPayload,
destinationBridge.requiredGasLimit,
recipientGasLimit,
multiHopFallback,
recipientFallback,
primaryFeeTokenAddress,
adjustedPrimaryFee,
secondaryRelayerFee
);
IERC20TokenTransferrer(bridgeSource).sendAndCall(input, adjustedAmount);
emit BridgeAndCallERC20(
tokenAddress,
destinationChainID,
recipient,
adjustedAmount,
adjustedPrimaryFee,
secondaryRelayerFee
);
}
/// @inheritdoc IAvalancheICTTRouter
function bridgeNative(
bytes32 destinationChainID,
address recipient,
address primaryFeeTokenAddress,
address multiHopFallback,
uint256 primaryRelayerFee,
uint256 secondaryRelayerFee
) external payable virtual nonReentrant {
address bridgeSource = tokenToSourceBridge[address(0)];
DestinationBridge memory destinationBridge =
tokenDestinationChainToDestinationBridge[destinationChainID][address(0)];
uint256 adjustedPrimaryFee = SafeERC20TransferFrom.safeTransferFrom(
IERC20(primaryFeeTokenAddress), primaryRelayerFee
);
SafeERC20.safeIncreaseAllowance(
IERC20(primaryFeeTokenAddress), bridgeSource, adjustedPrimaryFee
);
if (!destinationBridge.isMultihop) {
secondaryRelayerFee = 0;
}
SendTokensInput memory input = SendTokensInput(
destinationChainID,
destinationBridge.bridgeAddress,
recipient,
primaryFeeTokenAddress,
adjustedPrimaryFee,
secondaryRelayerFee,
destinationBridge.requiredGasLimit,
multiHopFallback
);
INativeTokenTransferrer(bridgeSource).send{value: msg.value}(input);
emit BridgeNative(
destinationChainID, recipient, msg.value, adjustedPrimaryFee, secondaryRelayerFee
);
}
/// @inheritdoc IAvalancheICTTRouter
function bridgeAndCallNative(
bytes32 destinationChainID,
address recipient,
address primaryFeeTokenAddress,
bytes memory recipientPayload,
address recipientFallback,
uint256 recipientGasLimit,
address multiHopFallback,
uint256 primaryRelayerFee,
uint256 secondaryRelayerFee
) external payable virtual nonReentrant {
address bridgeSource = tokenToSourceBridge[address(0)];
DestinationBridge memory destinationBridge =
tokenDestinationChainToDestinationBridge[destinationChainID][address(0)];
uint256 adjustedPrimaryFee = SafeERC20TransferFrom.safeTransferFrom(
IERC20(primaryFeeTokenAddress), primaryRelayerFee
);
SafeERC20.safeIncreaseAllowance(
IERC20(primaryFeeTokenAddress), bridgeSource, adjustedPrimaryFee
);
if (!destinationBridge.isMultihop) {
secondaryRelayerFee = 0;
}
SendAndCallInput memory input = SendAndCallInput(
destinationChainID,
destinationBridge.bridgeAddress,
recipient,
recipientPayload,
destinationBridge.requiredGasLimit,
recipientGasLimit,
multiHopFallback,
recipientFallback,
primaryFeeTokenAddress,
adjustedPrimaryFee,
secondaryRelayerFee
);
INativeTokenTransferrer(bridgeSource).sendAndCall{value: msg.value}(input);
emit BridgeAndCallNative(
destinationChainID, recipient, msg.value, adjustedPrimaryFee, secondaryRelayerFee
);
}
/// @inheritdoc IAvalancheICTTRouter
function getSourceBridge(
address token
) external view returns (address) {
return tokenToSourceBridge[token];
}
/// @inheritdoc IAvalancheICTTRouter
function getDestinationBridge(
bytes32 chainID,
address token
) external view returns (DestinationBridge memory) {
return tokenDestinationChainToDestinationBridge[chainID][token];
}
/// @inheritdoc IAvalancheICTTRouter
function getTokensList() external view returns (address[] memory) {
return (tokensList.values());
}
/// @inheritdoc IAvalancheICTTRouter
function getDestinationChainsForToken(
address token
) external view returns (bytes32[] memory) {
return (tokenToDestinationChainsIDList[token].values());
}
function _registerDestinationTokenBridge(
address tokenAddress,
bytes32 destinationChainID,
address bridgeAddress,
uint256 requiredGasLimit,
bool isMultihop
) internal {
if (tokenAddress != address(0) && tokenAddress.code.length == 0) {
revert AvalancheICTTRouter__TokenAddrNotAContract(tokenAddress);
}
if (bridgeAddress == address(0)) {
revert AvalancheICTTRouter__BridgeAddrNotAContract(bridgeAddress);
}
if (destinationChainID == routerChainID) {
revert AvalancheICTTRouter__SourceChainEqualsDestinationChain(
routerChainID, destinationChainID
);
}
DestinationBridge memory destinationBridge =
DestinationBridge(bridgeAddress, requiredGasLimit, isMultihop);
tokenDestinationChainToDestinationBridge[destinationChainID][tokenAddress] =
destinationBridge;
tokenToDestinationChainsIDList[tokenAddress].add(destinationChainID);
emit RegisterDestinationTokenBridge(tokenAddress, destinationChainID, destinationBridge);
}
}