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Cross-Chain Transactions
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This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
InterchainTokenService
Compiler Version
v0.8.21+commit.d9974bed
Optimization Enabled:
Yes with 1000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IERC20 } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IERC20.sol';
import { IAxelarGasService } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarGasService.sol';
import { IAxelarGateway } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarGateway.sol';
import { ExpressExecutorTracker } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/express/ExpressExecutorTracker.sol';
import { Upgradable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/upgradable/Upgradable.sol';
import { Create3Address } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/deploy/Create3Address.sol';
import { SafeTokenTransferFrom } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/libs/SafeTransfer.sol';
import { AddressBytes } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/libs/AddressBytes.sol';
import { StringToBytes32, Bytes32ToString } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/libs/Bytes32String.sol';
import { Multicall } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/utils/Multicall.sol';
import { Pausable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/utils/Pausable.sol';
import { InterchainAddressTracker } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/utils/InterchainAddressTracker.sol';
import { IInterchainTokenService } from './interfaces/IInterchainTokenService.sol';
import { ITokenManagerProxy } from './interfaces/ITokenManagerProxy.sol';
import { ITokenHandler } from './interfaces/ITokenHandler.sol';
import { ITokenManagerDeployer } from './interfaces/ITokenManagerDeployer.sol';
import { IInterchainTokenDeployer } from './interfaces/IInterchainTokenDeployer.sol';
import { IInterchainTokenExecutable } from './interfaces/IInterchainTokenExecutable.sol';
import { IInterchainTokenExpressExecutable } from './interfaces/IInterchainTokenExpressExecutable.sol';
import { ITokenManager } from './interfaces/ITokenManager.sol';
import { Operator } from './utils/Operator.sol';
/**
* @title The Interchain Token Service
* @notice This contract is responsible for facilitating interchain token transfers.
* It (mostly) does not handle tokens, but is responsible for the messaging that needs to occur for interchain transfers to happen.
* @dev The only storage used in this contract is for Express calls.
* Furthermore, no ether is intended to or should be sent to this contract except as part of deploy/interchainTransfer payable methods for gas payment.
*/
contract InterchainTokenService is
Upgradable,
Operator,
Pausable,
Multicall,
Create3Address,
ExpressExecutorTracker,
InterchainAddressTracker,
IInterchainTokenService
{
using StringToBytes32 for string;
using Bytes32ToString for bytes32;
using AddressBytes for bytes;
using AddressBytes for address;
using SafeTokenTransferFrom for IERC20;
IAxelarGateway public immutable gateway;
IAxelarGasService public immutable gasService;
address public immutable interchainTokenFactory;
bytes32 public immutable chainNameHash;
address public immutable interchainTokenDeployer;
address public immutable tokenManagerDeployer;
/**
* @dev Token manager implementation addresses
*/
address public immutable tokenManager;
address public immutable tokenHandler;
bytes32 internal constant PREFIX_INTERCHAIN_TOKEN_ID = keccak256('its-interchain-token-id');
bytes32 internal constant PREFIX_INTERCHAIN_TOKEN_SALT = keccak256('its-interchain-token-salt');
bytes32 private constant CONTRACT_ID = keccak256('interchain-token-service');
bytes32 private constant EXECUTE_SUCCESS = keccak256('its-execute-success');
bytes32 private constant EXPRESS_EXECUTE_SUCCESS = keccak256('its-express-execute-success');
/**
* @dev The message types that are sent between InterchainTokenService on different chains.
*/
uint256 private constant MESSAGE_TYPE_INTERCHAIN_TRANSFER = 0;
uint256 private constant MESSAGE_TYPE_DEPLOY_INTERCHAIN_TOKEN = 1;
uint256 private constant MESSAGE_TYPE_DEPLOY_TOKEN_MANAGER = 2;
/**
* @dev Tokens and token managers deployed via the Token Factory contract use a special deployer address.
* This removes the dependency on the address the token factory was deployed too to be able to derive the same tokenId.
*/
address internal constant TOKEN_FACTORY_DEPLOYER = address(0);
/**
* @dev Latest version of metadata that's supported.
*/
enum MetadataVersion {
CONTRACT_CALL,
EXPRESS_CALL
}
uint32 internal constant LATEST_METADATA_VERSION = 1;
/**
* @notice Constructor for the Interchain Token Service.
* @dev All of the variables passed here are stored as immutable variables.
* @param tokenManagerDeployer_ The address of the TokenManagerDeployer.
* @param interchainTokenDeployer_ The address of the InterchainTokenDeployer.
* @param gateway_ The address of the AxelarGateway.
* @param gasService_ The address of the AxelarGasService.
* @param interchainTokenFactory_ The address of the InterchainTokenFactory.
* @param chainName_ The name of the chain that this contract is deployed on.
* @param tokenManagerImplementation_ The tokenManager implementation.
* @param tokenHandler_ The tokenHandler implementation.
*/
constructor(
address tokenManagerDeployer_,
address interchainTokenDeployer_,
address gateway_,
address gasService_,
address interchainTokenFactory_,
string memory chainName_,
address tokenManagerImplementation_,
address tokenHandler_
) {
if (
gasService_ == address(0) ||
tokenManagerDeployer_ == address(0) ||
interchainTokenDeployer_ == address(0) ||
gateway_ == address(0) ||
interchainTokenFactory_ == address(0) ||
tokenManagerImplementation_ == address(0) ||
tokenHandler_ == address(0)
) revert ZeroAddress();
gateway = IAxelarGateway(gateway_);
gasService = IAxelarGasService(gasService_);
tokenManagerDeployer = tokenManagerDeployer_;
interchainTokenDeployer = interchainTokenDeployer_;
interchainTokenFactory = interchainTokenFactory_;
if (bytes(chainName_).length == 0) revert InvalidChainName();
chainNameHash = keccak256(bytes(chainName_));
tokenManager = tokenManagerImplementation_;
tokenHandler = tokenHandler_;
}
/*******\
MODIFIERS
\*******/
/**
* @notice This modifier is used to ensure that only a remote InterchainTokenService can invoke the execute function.
* @param sourceChain The source chain of the contract call.
* @param sourceAddress The source address that the call came from.
*/
modifier onlyRemoteService(string calldata sourceChain, string calldata sourceAddress) {
if (!isTrustedAddress(sourceChain, sourceAddress)) revert NotRemoteService();
_;
}
/*****\
GETTERS
\*****/
/**
* @notice Getter for the contract id.
* @return bytes32 The contract id of this contract.
*/
function contractId() external pure returns (bytes32) {
return CONTRACT_ID;
}
/**
* @notice Calculates the address of a TokenManager from a specific tokenId.
* @dev The TokenManager does not need to exist already.
* @param tokenId The tokenId.
* @return tokenManagerAddress_ The deployment address of the TokenManager.
*/
function tokenManagerAddress(bytes32 tokenId) public view returns (address tokenManagerAddress_) {
tokenManagerAddress_ = _create3Address(tokenId);
}
/**
* @notice Returns the address of a TokenManager from a specific tokenId.
* @dev The TokenManager needs to exist already.
* @param tokenId The tokenId.
* @return tokenManagerAddress_ The deployment address of the TokenManager.
*/
function validTokenManagerAddress(bytes32 tokenId) public view returns (address tokenManagerAddress_) {
tokenManagerAddress_ = tokenManagerAddress(tokenId);
if (tokenManagerAddress_.code.length == 0) revert TokenManagerDoesNotExist(tokenId);
}
/**
* @notice Returns the address of the token that an existing tokenManager points to.
* @param tokenId The tokenId.
* @return tokenAddress The address of the token.
*/
function validTokenAddress(bytes32 tokenId) public view returns (address tokenAddress) {
address tokenManagerAddress_ = validTokenManagerAddress(tokenId);
tokenAddress = ITokenManager(tokenManagerAddress_).tokenAddress();
}
/**
* @notice Returns the address of the interchain token associated with the given tokenId.
* @dev The token does not need to exist.
* @param tokenId The tokenId of the interchain token.
* @return tokenAddress The address of the interchain token.
*/
function interchainTokenAddress(bytes32 tokenId) public view returns (address tokenAddress) {
tokenId = _getInterchainTokenSalt(tokenId);
tokenAddress = _create3Address(tokenId);
}
/**
* @notice Calculates the tokenId that would correspond to a link for a given deployer with a specified salt.
* @param sender The address of the TokenManager deployer.
* @param salt The salt that the deployer uses for the deployment.
* @return tokenId The tokenId that the custom TokenManager would get (or has gotten).
*/
function interchainTokenId(address sender, bytes32 salt) public pure returns (bytes32 tokenId) {
tokenId = keccak256(abi.encode(PREFIX_INTERCHAIN_TOKEN_ID, sender, salt));
}
/**
* @notice Getter function for TokenManager implementation. This will mainly be called by TokenManager proxies
* to figure out their implementations.
* @return tokenManagerAddress The address of the TokenManager implementation.
*/
function tokenManagerImplementation(uint256 /*tokenManagerType*/) external view returns (address) {
return tokenManager;
}
/**
* @notice Getter function for the flow limit of an existing TokenManager with a given tokenId.
* @param tokenId The tokenId of the TokenManager.
* @return flowLimit_ The flow limit.
*/
function flowLimit(bytes32 tokenId) external view returns (uint256 flowLimit_) {
ITokenManager tokenManager_ = ITokenManager(validTokenManagerAddress(tokenId));
flowLimit_ = tokenManager_.flowLimit();
}
/**
* @notice Getter function for the flow out amount of an existing TokenManager with a given tokenId.
* @param tokenId The tokenId of the TokenManager.
* @return flowOutAmount_ The flow out amount.
*/
function flowOutAmount(bytes32 tokenId) external view returns (uint256 flowOutAmount_) {
ITokenManager tokenManager_ = ITokenManager(validTokenManagerAddress(tokenId));
flowOutAmount_ = tokenManager_.flowOutAmount();
}
/**
* @notice Getter function for the flow in amount of an existing TokenManager with a given tokenId.
* @param tokenId The tokenId of the TokenManager.
* @return flowInAmount_ The flow in amount.
*/
function flowInAmount(bytes32 tokenId) external view returns (uint256 flowInAmount_) {
ITokenManager tokenManager_ = ITokenManager(validTokenManagerAddress(tokenId));
flowInAmount_ = tokenManager_.flowInAmount();
}
/************\
USER FUNCTIONS
\************/
/**
* @notice Used to deploy remote custom TokenManagers.
* @dev At least the `gasValue` amount of native token must be passed to the function call. `gasValue` exists because this function can be
* part of a multicall involving multiple functions that could make remote contract calls.
* @param salt The salt to be used during deployment.
* @param destinationChain The name of the chain to deploy the TokenManager and standardized token to.
* @param tokenManagerType The type of token manager to be deployed. Cannot be NATIVE_INTERCHAIN_TOKEN.
* @param params The params that will be used to initialize the TokenManager.
* @param gasValue The amount of native tokens to be used to pay for gas for the remote deployment.
* @return tokenId The tokenId corresponding to the deployed TokenManager.
*/
function deployTokenManager(
bytes32 salt,
string calldata destinationChain,
TokenManagerType tokenManagerType,
bytes calldata params,
uint256 gasValue
) external payable whenNotPaused returns (bytes32 tokenId) {
// Custom token managers can't be deployed with Interchain token mint burn type, which is reserved for interchain tokens
if (tokenManagerType == TokenManagerType.NATIVE_INTERCHAIN_TOKEN) revert CannotDeploy(tokenManagerType);
address deployer = msg.sender;
if (deployer == interchainTokenFactory) {
deployer = TOKEN_FACTORY_DEPLOYER;
}
tokenId = interchainTokenId(deployer, salt);
emit InterchainTokenIdClaimed(tokenId, deployer, salt);
if (bytes(destinationChain).length == 0) {
_deployTokenManager(tokenId, tokenManagerType, params);
} else {
_deployRemoteTokenManager(tokenId, destinationChain, gasValue, tokenManagerType, params);
}
}
/**
* @notice Used to deploy an interchain token alongside a TokenManager in another chain.
* @dev At least the `gasValue` amount of native token must be passed to the function call. `gasValue` exists because this function can be
* part of a multicall involving multiple functions that could make remote contract calls. If the `minter` parameter is empty bytes then
* a mint/burn TokenManager is used, otherwise a lock/unlock TokenManager is used.
* @param salt The salt to be used during deployment.
* @param destinationChain The name of the destination chain to deploy to.
* @param name The name of the token to be deployed.
* @param symbol The symbol of the token to be deployed.
* @param decimals The decimals of the token to be deployed.
* @param minter The address that will be able to mint and burn the deployed token.
* @param gasValue The amount of native tokens to be used to pay for gas for the remote deployment.
* @return tokenId The tokenId corresponding to the deployed InterchainToken.
*/
function deployInterchainToken(
bytes32 salt,
string calldata destinationChain,
string memory name,
string memory symbol,
uint8 decimals,
bytes memory minter,
uint256 gasValue
) external payable whenNotPaused returns (bytes32 tokenId) {
address deployer = msg.sender;
if (deployer == interchainTokenFactory) deployer = TOKEN_FACTORY_DEPLOYER;
tokenId = interchainTokenId(deployer, salt);
if (bytes(destinationChain).length == 0) {
address tokenAddress = _deployInterchainToken(tokenId, minter, name, symbol, decimals);
_deployTokenManager(tokenId, TokenManagerType.NATIVE_INTERCHAIN_TOKEN, abi.encode(minter, tokenAddress));
} else {
_deployRemoteInterchainToken(tokenId, name, symbol, decimals, minter, destinationChain, gasValue);
}
}
/**
* @notice Returns the amount of token that this call is worth.
* @dev If `tokenAddress` is `0`, then value is in terms of the native token, otherwise it's in terms of the token address.
* @param sourceChain The source chain.
* @param sourceAddress The source address on the source chain.
* @param payload The payload sent with the call.
* @return address The token address.
* @return uint256 The value the call is worth.
*/
function contractCallValue(
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) public view virtual onlyRemoteService(sourceChain, sourceAddress) whenNotPaused returns (address, uint256) {
(uint256 messageType, bytes32 tokenId, , uint256 amount) = abi.decode(payload, (uint256, bytes32, bytes, uint256));
if (messageType != MESSAGE_TYPE_INTERCHAIN_TRANSFER) {
revert InvalidExpressMessageType(messageType);
}
return (validTokenAddress(tokenId), amount);
}
/**
* @notice Express executes operations based on the payload and selector.
* @param commandId The unique message id.
* @param sourceChain The chain where the transaction originates from.
* @param sourceAddress The address of the remote ITS where the transaction originates from.
* @param payload The encoded data payload for the transaction.
*/
function expressExecute(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) external payable whenNotPaused {
uint256 messageType = abi.decode(payload, (uint256));
if (messageType != MESSAGE_TYPE_INTERCHAIN_TRANSFER) {
revert InvalidExpressMessageType(messageType);
}
if (gateway.isCommandExecuted(commandId)) revert AlreadyExecuted();
address expressExecutor = msg.sender;
bytes32 payloadHash = keccak256(payload);
emit ExpressExecuted(commandId, sourceChain, sourceAddress, payloadHash, expressExecutor);
_setExpressExecutor(commandId, sourceChain, sourceAddress, payloadHash, expressExecutor);
_expressExecute(commandId, sourceChain, payload);
}
/**
* @notice Uses the caller's tokens to fullfill a sendCall ahead of time. Use this only if you have detected an outgoing
* interchainTransfer that matches the parameters passed here.
* @param commandId The unique message id of the transfer being expressed.
* @param sourceChain the name of the chain where the interchainTransfer originated from.
* @param payload the payload of the receive token
*/
function _expressExecute(bytes32 commandId, string calldata sourceChain, bytes calldata payload) internal {
(, bytes32 tokenId, bytes memory sourceAddress, bytes memory destinationAddressBytes, uint256 amount, bytes memory data) = abi
.decode(payload, (uint256, bytes32, bytes, bytes, uint256, bytes));
address destinationAddress = destinationAddressBytes.toAddress();
IERC20 token;
{
ITokenManager tokenManager_ = ITokenManager(tokenManagerAddress(tokenId));
token = IERC20(tokenManager_.tokenAddress());
(bool success, bytes memory returnData) = tokenHandler.delegatecall(
abi.encodeWithSelector(
ITokenHandler.transferTokenFrom.selector,
tokenManager_.implementationType(),
address(token),
msg.sender,
destinationAddress,
amount
)
);
if (!success) revert TokenHandlerFailed(returnData);
amount = abi.decode(returnData, (uint256));
}
// slither-disable-next-line reentrancy-events
emit InterchainTransferReceived(
commandId,
tokenId,
sourceChain,
sourceAddress,
destinationAddress,
amount,
data.length == 0 ? bytes32(0) : keccak256(data)
);
if (data.length != 0) {
bytes32 result = IInterchainTokenExpressExecutable(destinationAddress).expressExecuteWithInterchainToken(
commandId,
sourceChain,
sourceAddress,
data,
tokenId,
address(token),
amount
);
if (result != EXPRESS_EXECUTE_SUCCESS) revert ExpressExecuteWithInterchainTokenFailed(destinationAddress);
}
}
/**
* @notice Initiates an interchain transfer of a specified token to a destination chain.
* @dev The function retrieves the TokenManager associated with the tokenId.
* @param tokenId The unique identifier of the token to be transferred.
* @param destinationChain The destination chain to send the tokens to.
* @param destinationAddress The address on the destination chain to send the tokens to.
* @param amount The amount of tokens to be transferred.
* @param metadata Optional metadata for the call for additional effects (such as calling a destination contract).
*/
function interchainTransfer(
bytes32 tokenId,
string calldata destinationChain,
bytes calldata destinationAddress,
uint256 amount,
bytes calldata metadata,
uint256 gasValue
) external payable whenNotPaused {
amount = _takeToken(tokenId, msg.sender, amount, false);
(MetadataVersion metadataVersion, bytes memory data) = _decodeMetadata(metadata);
_transmitInterchainTransfer(tokenId, msg.sender, destinationChain, destinationAddress, amount, metadataVersion, data, gasValue);
}
/**
* @notice Initiates an interchain call contract with interchain token to a destination chain.
* @param tokenId The unique identifier of the token to be transferred.
* @param destinationChain The destination chain to send the tokens to.
* @param destinationAddress The address on the destination chain to send the tokens to.
* @param amount The amount of tokens to be transferred.
* @param data Additional data to be passed along with the transfer.
*/
function callContractWithInterchainToken(
bytes32 tokenId,
string calldata destinationChain,
bytes calldata destinationAddress,
uint256 amount,
bytes memory data,
uint256 gasValue
) external payable whenNotPaused {
if (data.length == 0) revert EmptyData();
amount = _takeToken(tokenId, msg.sender, amount, false);
_transmitInterchainTransfer(
tokenId,
msg.sender,
destinationChain,
destinationAddress,
amount,
MetadataVersion.CONTRACT_CALL,
data,
gasValue
);
}
/******************\
TOKEN ONLY FUNCTIONS
\******************/
/**
* @notice Transmit an interchain transfer for the given tokenId.
* @dev Only callable by a token registered under a tokenId.
* @param tokenId The tokenId of the token (which must be the msg.sender).
* @param sourceAddress The address where the token is coming from.
* @param destinationChain The name of the chain to send tokens to.
* @param destinationAddress The destinationAddress for the interchainTransfer.
* @param amount The amount of token to give.
* @param metadata Optional metadata for the call for additional effects (such as calling a destination contract).
*/
function transmitInterchainTransfer(
bytes32 tokenId,
address sourceAddress,
string calldata destinationChain,
bytes memory destinationAddress,
uint256 amount,
bytes calldata metadata
) external payable whenNotPaused {
amount = _takeToken(tokenId, sourceAddress, amount, true);
(MetadataVersion metadataVersion, bytes memory data) = _decodeMetadata(metadata);
_transmitInterchainTransfer(tokenId, sourceAddress, destinationChain, destinationAddress, amount, metadataVersion, data, msg.value);
}
/*************\
OWNER FUNCTIONS
\*************/
/**
* @notice Used to set a flow limit for a token manager that has the service as its operator.
* @param tokenIds An array of the tokenIds of the tokenManagers to set the flow limits of.
* @param flowLimits The flowLimits to set.
*/
function setFlowLimits(bytes32[] calldata tokenIds, uint256[] calldata flowLimits) external onlyRole(uint8(Roles.OPERATOR)) {
uint256 length = tokenIds.length;
if (length != flowLimits.length) revert LengthMismatch();
for (uint256 i; i < length; ++i) {
ITokenManager tokenManager_ = ITokenManager(validTokenManagerAddress(tokenIds[i]));
// slither-disable-next-line calls-loop
tokenManager_.setFlowLimit(flowLimits[i]);
}
}
/**
* @notice Used to set a trusted address for a chain.
* @param chain The chain to set the trusted address of.
* @param address_ The address to set as trusted.
*/
function setTrustedAddress(string memory chain, string memory address_) external onlyOwner {
_setTrustedAddress(chain, address_);
}
/**
* @notice Used to remove a trusted address for a chain.
* @param chain The chain to set the trusted address of.
*/
function removeTrustedAddress(string memory chain) external onlyOwner {
_removeTrustedAddress(chain);
}
/**
* @notice Allows the owner to pause/unpause the token service.
* @param paused Boolean value representing whether to pause or unpause.
*/
function setPauseStatus(bool paused) external onlyOwner {
if (paused) {
_pause();
} else {
_unpause();
}
}
/****************\
INTERNAL FUNCTIONS
\****************/
function _setup(bytes calldata params) internal override {
(address operator, string memory chainName_, string[] memory trustedChainNames, string[] memory trustedAddresses) = abi.decode(
params,
(address, string, string[], string[])
);
uint256 length = trustedChainNames.length;
if (operator == address(0)) revert ZeroAddress();
if (bytes(chainName_).length == 0 || keccak256(bytes(chainName_)) != chainNameHash) revert InvalidChainName();
if (length != trustedAddresses.length) revert LengthMismatch();
_addOperator(operator);
_setChainName(chainName_);
for (uint256 i; i < length; ++i) {
_setTrustedAddress(trustedChainNames[i], trustedAddresses[i]);
}
}
/**
* @notice Executes operations based on the payload and selector.
* @param commandId The unique message id.
* @param sourceChain The chain where the transaction originates from.
* @param sourceAddress The address of the remote ITS where the transaction originates from.
* @param payload The encoded data payload for the transaction.
*/
function execute(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) external onlyRemoteService(sourceChain, sourceAddress) whenNotPaused {
bytes32 payloadHash = keccak256(payload);
if (!gateway.validateContractCall(commandId, sourceChain, sourceAddress, payloadHash)) revert NotApprovedByGateway();
uint256 messageType = abi.decode(payload, (uint256));
if (messageType == MESSAGE_TYPE_INTERCHAIN_TRANSFER) {
address expressExecutor = _popExpressExecutor(commandId, sourceChain, sourceAddress, payloadHash);
_processInterchainTransferPayload(commandId, expressExecutor, sourceChain, payload);
if (expressExecutor != address(0)) {
emit ExpressExecutionFulfilled(commandId, sourceChain, sourceAddress, payloadHash, expressExecutor);
}
} else if (messageType == MESSAGE_TYPE_DEPLOY_TOKEN_MANAGER) {
_processDeployTokenManagerPayload(payload);
} else if (messageType == MESSAGE_TYPE_DEPLOY_INTERCHAIN_TOKEN) {
_processDeployInterchainTokenPayload(payload);
} else {
revert InvalidMessageType(messageType);
}
}
function contractCallWithTokenValue(
string calldata /*sourceChain*/,
string calldata /*sourceAddress*/,
bytes calldata /*payload*/,
string calldata /*symbol*/,
uint256 /*amount*/
) public view virtual returns (address, uint256) {
revert ExecuteWithTokenNotSupported();
}
function expressExecuteWithToken(
bytes32 /*commandId*/,
string calldata /*sourceChain*/,
string calldata /*sourceAddress*/,
bytes calldata /*payload*/,
string calldata /*tokenSymbol*/,
uint256 /*amount*/
) external payable {
revert ExecuteWithTokenNotSupported();
}
function executeWithToken(
bytes32 /*commandId*/,
string calldata /*sourceChain*/,
string calldata /*sourceAddress*/,
bytes calldata /*payload*/,
string calldata /*tokenSymbol*/,
uint256 /*amount*/
) external pure {
revert ExecuteWithTokenNotSupported();
}
/**
* @notice Processes the payload data for a send token call.
* @param commandId The unique message id.
* @param expressExecutor The address of the express executor. Equals `address(0)` if it wasn't expressed.
* @param sourceChain The chain where the transaction originates from.
* @param payload The encoded data payload to be processed.
*/
function _processInterchainTransferPayload(
bytes32 commandId,
address expressExecutor,
string calldata sourceChain,
bytes calldata payload
) internal {
bytes32 tokenId;
bytes memory sourceAddress;
address destinationAddress;
uint256 amount;
bytes memory data;
{
bytes memory destinationAddressBytes;
(, tokenId, sourceAddress, destinationAddressBytes, amount, data) = abi.decode(
payload,
(uint256, bytes32, bytes, bytes, uint256, bytes)
);
destinationAddress = destinationAddressBytes.toAddress();
}
// Return token to the existing express caller
if (expressExecutor != address(0)) {
// slither-disable-next-line unused-return
_giveToken(tokenId, expressExecutor, amount);
return;
}
address tokenAddress;
(amount, tokenAddress) = _giveToken(tokenId, destinationAddress, amount);
// slither-disable-next-line reentrancy-events
emit InterchainTransferReceived(
commandId,
tokenId,
sourceChain,
sourceAddress,
destinationAddress,
amount,
data.length == 0 ? bytes32(0) : keccak256(data)
);
if (data.length != 0) {
bytes32 result = IInterchainTokenExecutable(destinationAddress).executeWithInterchainToken(
commandId,
sourceChain,
sourceAddress,
data,
tokenId,
tokenAddress,
amount
);
if (result != EXECUTE_SUCCESS) revert ExecuteWithInterchainTokenFailed(destinationAddress);
}
}
/**
* @notice Processes a deploy token manager payload.
*/
function _processDeployTokenManagerPayload(bytes calldata payload) internal {
(, bytes32 tokenId, TokenManagerType tokenManagerType, bytes memory params) = abi.decode(
payload,
(uint256, bytes32, TokenManagerType, bytes)
);
if (tokenManagerType == TokenManagerType.NATIVE_INTERCHAIN_TOKEN) revert CannotDeploy(tokenManagerType);
_deployTokenManager(tokenId, tokenManagerType, params);
}
/**
* @notice Processes a deploy interchain token manager payload.
* @param payload The encoded data payload to be processed.
*/
function _processDeployInterchainTokenPayload(bytes calldata payload) internal {
(, bytes32 tokenId, string memory name, string memory symbol, uint8 decimals, bytes memory minterBytes) = abi.decode(
payload,
(uint256, bytes32, string, string, uint8, bytes)
);
address tokenAddress;
tokenAddress = _deployInterchainToken(tokenId, minterBytes, name, symbol, decimals);
_deployTokenManager(tokenId, TokenManagerType.NATIVE_INTERCHAIN_TOKEN, abi.encode(minterBytes, tokenAddress));
}
/**
* @notice Calls a contract on a specific destination chain with the given payload
* @param destinationChain The target chain where the contract will be called.
* @param payload The data payload for the transaction.
* @param gasValue The amount of gas to be paid for the transaction.
*/
function _callContract(
string calldata destinationChain,
bytes memory payload,
MetadataVersion metadataVersion,
uint256 gasValue
) internal {
string memory destinationAddress = trustedAddress(destinationChain);
if (bytes(destinationAddress).length == 0) revert UntrustedChain();
if (gasValue > 0) {
if (metadataVersion == MetadataVersion.CONTRACT_CALL) {
gasService.payNativeGasForContractCall{ value: gasValue }(
address(this),
destinationChain,
destinationAddress,
payload, // solhint-disable-next-line avoid-tx-origin
tx.origin
);
} else if (metadataVersion == MetadataVersion.EXPRESS_CALL) {
gasService.payNativeGasForExpressCall{ value: gasValue }(
address(this),
destinationChain,
destinationAddress,
payload, // solhint-disable-next-line avoid-tx-origin
tx.origin
);
} else {
revert InvalidMetadataVersion(uint32(metadataVersion));
}
}
gateway.callContract(destinationChain, destinationAddress, payload);
}
/**
* @notice Deploys a token manager on a destination chain.
* @param tokenId The ID of the token.
* @param destinationChain The chain where the token manager will be deployed.
* @param gasValue The amount of gas to be paid for the transaction.
* @param tokenManagerType The type of token manager to be deployed.
* @param params Additional parameters for the token manager deployment.
*/
function _deployRemoteTokenManager(
bytes32 tokenId,
string calldata destinationChain,
uint256 gasValue,
TokenManagerType tokenManagerType,
bytes memory params
) internal {
// slither-disable-next-line unused-return
validTokenManagerAddress(tokenId);
emit TokenManagerDeploymentStarted(tokenId, destinationChain, tokenManagerType, params);
bytes memory payload = abi.encode(MESSAGE_TYPE_DEPLOY_TOKEN_MANAGER, tokenId, tokenManagerType, params);
_callContract(destinationChain, payload, MetadataVersion.CONTRACT_CALL, gasValue);
}
/**
* @notice Deploys an interchain token on a destination chain.
* @param tokenId The ID of the token.
* @param name The name of the token.
* @param symbol The symbol of the token.
* @param decimals The number of decimals of the token.
* @param minter The minter address for the token.
* @param destinationChain The destination chain where the token will be deployed.
* @param gasValue The amount of gas to be paid for the transaction.
*/
function _deployRemoteInterchainToken(
bytes32 tokenId,
string memory name,
string memory symbol,
uint8 decimals,
bytes memory minter,
string calldata destinationChain,
uint256 gasValue
) internal {
// slither-disable-next-line unused-return
validTokenManagerAddress(tokenId);
// slither-disable-next-line reentrancy-events
emit InterchainTokenDeploymentStarted(tokenId, name, symbol, decimals, minter, destinationChain);
bytes memory payload = abi.encode(MESSAGE_TYPE_DEPLOY_INTERCHAIN_TOKEN, tokenId, name, symbol, decimals, minter);
_callContract(destinationChain, payload, MetadataVersion.CONTRACT_CALL, gasValue);
}
/**
* @notice Deploys a token manager.
* @param tokenId The ID of the token.
* @param tokenManagerType The type of the token manager to be deployed.
* @param params Additional parameters for the token manager deployment.
*/
function _deployTokenManager(bytes32 tokenId, TokenManagerType tokenManagerType, bytes memory params) internal {
(bool success, bytes memory returnData) = tokenManagerDeployer.delegatecall(
abi.encodeWithSelector(ITokenManagerDeployer.deployTokenManager.selector, tokenId, tokenManagerType, params)
);
if (!success) revert TokenManagerDeploymentFailed(returnData);
address tokenManager_;
assembly {
tokenManager_ := mload(add(returnData, 0x20))
}
if (tokenManagerType == TokenManagerType.LOCK_UNLOCK || tokenManagerType == TokenManagerType.LOCK_UNLOCK_FEE) {
ITokenManager(tokenManager_).approveService();
}
// slither-disable-next-line reentrancy-events
emit TokenManagerDeployed(tokenId, tokenManager_, tokenManagerType, params);
}
/**
* @notice Computes the salt for an interchain token deployment.
* @param tokenId The ID of the token.
* @return salt The computed salt for the token deployment.
*/
function _getInterchainTokenSalt(bytes32 tokenId) internal pure returns (bytes32 salt) {
return keccak256(abi.encode(PREFIX_INTERCHAIN_TOKEN_SALT, tokenId));
}
/**
* @notice Deploys an interchain token.
* @param tokenId The ID of the token.
* @param minterBytes The minter address for the token.
* @param name The name of the token.
* @param symbol The symbol of the token.
* @param decimals The number of decimals of the token.
*/
function _deployInterchainToken(
bytes32 tokenId,
bytes memory minterBytes,
string memory name,
string memory symbol,
uint8 decimals
) internal returns (address tokenAddress) {
bytes32 salt = _getInterchainTokenSalt(tokenId);
address minter;
if (bytes(minterBytes).length != 0) minter = minterBytes.toAddress();
(bool success, bytes memory returnData) = interchainTokenDeployer.delegatecall(
abi.encodeWithSelector(IInterchainTokenDeployer.deployInterchainToken.selector, salt, tokenId, minter, name, symbol, decimals)
);
if (!success) {
revert InterchainTokenDeploymentFailed(returnData);
}
assembly {
tokenAddress := mload(add(returnData, 0x20))
}
// slither-disable-next-line reentrancy-events
emit InterchainTokenDeployed(tokenId, tokenAddress, minter, name, symbol, decimals);
}
/**
* @notice Decodes the metadata into a version number and data bytes.
* @dev The function expects the metadata to have the version in the first 4 bytes, followed by the actual data.
* @param metadata The bytes containing the metadata to decode.
* @return version The version number extracted from the metadata.
* @return data The data bytes extracted from the metadata.
*/
function _decodeMetadata(bytes calldata metadata) internal pure returns (MetadataVersion version, bytes memory data) {
if (metadata.length < 4) return (MetadataVersion.CONTRACT_CALL, data);
uint32 versionUint = uint32(bytes4(metadata[:4]));
if (versionUint > LATEST_METADATA_VERSION) revert InvalidMetadataVersion(versionUint);
version = MetadataVersion(versionUint);
if (metadata.length == 4) return (version, data);
data = metadata[4:];
}
/**
* @notice Transmit a callContractWithInterchainToken for the given tokenId.
* @param tokenId The tokenId of the TokenManager (which must be the msg.sender).
* @param sourceAddress The address where the token is coming from, which will also be used for gas reimbursement.
* @param destinationChain The name of the chain to send tokens to.
* @param destinationAddress The destinationAddress for the interchainTransfer.
* @param amount The amount of tokens to send.
* @param metadataVersion The version of the metadata.
* @param data The data to be passed with the token transfer.
*/
function _transmitInterchainTransfer(
bytes32 tokenId,
address sourceAddress,
string calldata destinationChain,
bytes memory destinationAddress,
uint256 amount,
MetadataVersion metadataVersion,
bytes memory data,
uint256 gasValue
) internal {
// slither-disable-next-line reentrancy-events
emit InterchainTransfer(
tokenId,
sourceAddress,
destinationChain,
destinationAddress,
amount,
data.length == 0 ? bytes32(0) : keccak256(data)
);
bytes memory payload = abi.encode(
MESSAGE_TYPE_INTERCHAIN_TRANSFER,
tokenId,
sourceAddress.toBytes(),
destinationAddress,
amount,
data
);
_callContract(destinationChain, payload, metadataVersion, gasValue);
}
/**
* @dev Takes token from a sender via the token service. `tokenOnly` indicates if the caller should be restricted to the token only.
*/
function _takeToken(bytes32 tokenId, address from, uint256 amount, bool tokenOnly) internal returns (uint256) {
address tokenManager_ = tokenManagerAddress(tokenId);
uint256 tokenManagerType;
address tokenAddress;
(tokenManagerType, tokenAddress) = ITokenManagerProxy(tokenManager_).getImplementationTypeAndTokenAddress();
if (tokenOnly && msg.sender != tokenAddress) revert NotToken(msg.sender, tokenAddress);
(bool success, bytes memory data) = tokenHandler.delegatecall(
abi.encodeWithSelector(ITokenHandler.takeToken.selector, tokenManagerType, tokenAddress, tokenManager_, from, amount)
);
if (!success) revert TakeTokenFailed(data);
amount = abi.decode(data, (uint256));
/// @dev Track the flow amount being sent out as a message
ITokenManager(tokenManager_).addFlowOut(amount);
return amount;
}
/**
* @dev Gives token to recipient via the token service.
*/
function _giveToken(bytes32 tokenId, address to, uint256 amount) internal returns (uint256, address) {
address tokenManager_ = tokenManagerAddress(tokenId);
(uint256 tokenManagerType, address tokenAddress) = ITokenManagerProxy(tokenManager_).getImplementationTypeAndTokenAddress();
/// @dev Track the flow amount being received via the message
ITokenManager(tokenManager_).addFlowIn(amount);
(bool success, bytes memory data) = tokenHandler.delegatecall(
abi.encodeWithSelector(ITokenHandler.giveToken.selector, tokenManagerType, tokenAddress, tokenManager_, to, amount)
);
if (!success) revert GiveTokenFailed(data);
amount = abi.decode(data, (uint256));
return (amount, tokenAddress);
}
}// SPDX-License-Identifier: MIT
import { CreateDeploy } from './CreateDeploy.sol';
pragma solidity ^0.8.0;
/**
* @title Create3Address contract
* @notice This contract can be used to predict the deterministic deployment address of a contract deployed with the `CREATE3` technique.
*/
contract Create3Address {
/// @dev bytecode hash of the CreateDeploy helper contract
bytes32 internal immutable createDeployBytecodeHash;
constructor() {
createDeployBytecodeHash = keccak256(type(CreateDeploy).creationCode);
}
/**
* @notice Compute the deployed address that will result from the `CREATE3` method.
* @param deploySalt A salt to influence the contract address
* @return deployed The deterministic contract address if it was deployed
*/
function _create3Address(bytes32 deploySalt) internal view returns (address deployed) {
address deployer = address(
uint160(uint256(keccak256(abi.encodePacked(hex'ff', address(this), deploySalt, createDeployBytecodeHash))))
);
deployed = address(uint160(uint256(keccak256(abi.encodePacked(hex'd6_94', deployer, hex'01')))));
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title CreateDeploy Contract
* @notice This contract deploys new contracts using the `CREATE` opcode and is used as part of
* the `CREATE3` deployment method.
*/
contract CreateDeploy {
/**
* @dev Deploys a new contract with the specified bytecode using the `CREATE` opcode.
* @param bytecode The bytecode of the contract to be deployed
*/
// slither-disable-next-line locked-ether
function deploy(bytes memory bytecode) external payable {
assembly {
if iszero(create(0, add(bytecode, 32), mload(bytecode))) {
revert(0, 0)
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IAxelarExpressExecutable } from '../interfaces/IAxelarExpressExecutable.sol';
abstract contract ExpressExecutorTracker is IAxelarExpressExecutable {
bytes32 internal constant PREFIX_EXPRESS_EXECUTE = keccak256('express-execute');
bytes32 internal constant PREFIX_EXPRESS_EXECUTE_WITH_TOKEN = keccak256('express-execute-with-token');
function _expressExecuteSlot(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash
) internal pure returns (bytes32 slot) {
slot = keccak256(abi.encode(PREFIX_EXPRESS_EXECUTE, commandId, sourceChain, sourceAddress, payloadHash));
}
function _expressExecuteWithTokenSlot(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) internal pure returns (bytes32 slot) {
slot = keccak256(
abi.encode(
PREFIX_EXPRESS_EXECUTE_WITH_TOKEN,
commandId,
sourceChain,
sourceAddress,
payloadHash,
symbol,
amount
)
);
}
function getExpressExecutor(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash
) external view returns (address expressExecutor) {
bytes32 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);
assembly {
expressExecutor := sload(slot)
}
}
function getExpressExecutorWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) external view returns (address expressExecutor) {
bytes32 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);
assembly {
expressExecutor := sload(slot)
}
}
function _setExpressExecutor(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
address expressExecutor
) internal {
bytes32 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);
address currentExecutor;
assembly {
currentExecutor := sload(slot)
}
if (currentExecutor != address(0)) revert ExpressExecutorAlreadySet();
assembly {
sstore(slot, expressExecutor)
}
}
function _setExpressExecutorWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount,
address expressExecutor
) internal {
bytes32 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);
address currentExecutor;
assembly {
currentExecutor := sload(slot)
}
if (currentExecutor != address(0)) revert ExpressExecutorAlreadySet();
assembly {
sstore(slot, expressExecutor)
}
}
function _popExpressExecutor(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash
) internal returns (address expressExecutor) {
bytes32 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);
assembly {
expressExecutor := sload(slot)
if expressExecutor {
sstore(slot, 0)
}
}
}
function _popExpressExecutorWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) internal returns (address expressExecutor) {
bytes32 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);
assembly {
expressExecutor := sload(slot)
if expressExecutor {
sstore(slot, 0)
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IAxelarGateway } from './IAxelarGateway.sol';
interface IAxelarExecutable {
error InvalidAddress();
error NotApprovedByGateway();
function gateway() external view returns (IAxelarGateway);
function execute(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) external;
function executeWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload,
string calldata tokenSymbol,
uint256 amount
) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IAxelarExecutable } from './IAxelarExecutable.sol';
/**
* @title IAxelarExpressExecutable
* @notice Interface for the Axelar Express Executable contract.
*/
interface IAxelarExpressExecutable is IAxelarExecutable {
// Custom errors
error AlreadyExecuted();
error InsufficientValue();
error ExpressExecutorAlreadySet();
/**
* @notice Emitted when an express execution is successfully performed.
* @param commandId The unique identifier for the command.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @param expressExecutor The address of the express executor.
*/
event ExpressExecuted(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
bytes32 payloadHash,
address indexed expressExecutor
);
/**
* @notice Emitted when an express execution with a token is successfully performed.
* @param commandId The unique identifier for the command.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @param symbol The token symbol.
* @param amount The amount of tokens.
* @param expressExecutor The address of the express executor.
*/
event ExpressExecutedWithToken(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
bytes32 payloadHash,
string symbol,
uint256 indexed amount,
address indexed expressExecutor
);
/**
* @notice Emitted when an express execution is fulfilled.
* @param commandId The commandId for the contractCall.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @param expressExecutor The address of the express executor.
*/
event ExpressExecutionFulfilled(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
bytes32 payloadHash,
address indexed expressExecutor
);
/**
* @notice Emitted when an express execution with a token is fulfilled.
* @param commandId The commandId for the contractCallWithToken.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @param symbol The token symbol.
* @param amount The amount of tokens.
* @param expressExecutor The address of the express executor.
*/
event ExpressExecutionWithTokenFulfilled(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
bytes32 payloadHash,
string symbol,
uint256 indexed amount,
address indexed expressExecutor
);
/**
* @notice Returns the express executor for a given command.
* @param commandId The commandId for the contractCall.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @return expressExecutor The address of the express executor.
*/
function getExpressExecutor(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash
) external view returns (address expressExecutor);
/**
* @notice Returns the express executor with token for a given command.
* @param commandId The commandId for the contractCallWithToken.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payloadHash The hash of the payload.
* @param symbol The token symbol.
* @param amount The amount of tokens.
* @return expressExecutor The address of the express executor.
*/
function getExpressExecutorWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) external view returns (address expressExecutor);
/**
* @notice Express executes a contract call.
* @param commandId The commandId for the contractCall.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payload The payload data.
*/
function expressExecute(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) external payable;
/**
* @notice Express executes a contract call with token.
* @param commandId The commandId for the contractCallWithToken.
* @param sourceChain The source chain.
* @param sourceAddress The source address.
* @param payload The payload data.
* @param symbol The token symbol.
* @param amount The amount of token.
*/
function expressExecuteWithToken(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount
) external payable;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IUpgradable } from '../interfaces/IUpgradable.sol';
/**
* @title IAxelarGasService Interface
* @notice This is an interface for the AxelarGasService contract which manages gas payments
* and refunds for cross-chain communication on the Axelar network.
* @dev This interface inherits IUpgradable
*/
interface IAxelarGasService is IUpgradable {
error NothingReceived();
error InvalidAddress();
error NotCollector();
error InvalidAmounts();
event GasPaidForContractCall(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event GasPaidForContractCallWithToken(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
string symbol,
uint256 amount,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event NativeGasPaidForContractCall(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
uint256 gasFeeAmount,
address refundAddress
);
event NativeGasPaidForContractCallWithToken(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
string symbol,
uint256 amount,
uint256 gasFeeAmount,
address refundAddress
);
event GasPaidForExpressCall(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event GasPaidForExpressCallWithToken(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
string symbol,
uint256 amount,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event NativeGasPaidForExpressCall(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
uint256 gasFeeAmount,
address refundAddress
);
event NativeGasPaidForExpressCallWithToken(
address indexed sourceAddress,
string destinationChain,
string destinationAddress,
bytes32 indexed payloadHash,
string symbol,
uint256 amount,
uint256 gasFeeAmount,
address refundAddress
);
event GasAdded(
bytes32 indexed txHash,
uint256 indexed logIndex,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event NativeGasAdded(bytes32 indexed txHash, uint256 indexed logIndex, uint256 gasFeeAmount, address refundAddress);
event ExpressGasAdded(
bytes32 indexed txHash,
uint256 indexed logIndex,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
);
event NativeExpressGasAdded(
bytes32 indexed txHash,
uint256 indexed logIndex,
uint256 gasFeeAmount,
address refundAddress
);
event Refunded(
bytes32 indexed txHash,
uint256 indexed logIndex,
address payable receiver,
address token,
uint256 amount
);
/**
* @notice Pay for gas using ERC20 tokens for a contract call on a destination chain.
* @dev This function is called on the source chain before calling the gateway to execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call
* @param gasToken The address of the ERC20 token used to pay for gas
* @param gasFeeAmount The amount of tokens to pay for gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function payGasForContractCall(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Pay for gas using ERC20 tokens for a contract call with tokens on a destination chain.
* @dev This function is called on the source chain before calling the gateway to execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call with tokens will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call with tokens
* @param symbol The symbol of the token to be sent with the call
* @param amount The amount of tokens to be sent with the call
* @param gasToken The address of the ERC20 token used to pay for gas
* @param gasFeeAmount The amount of tokens to pay for gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function payGasForContractCallWithToken(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Pay for gas using native currency for a contract call on a destination chain.
* @dev This function is called on the source chain before calling the gateway to execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call
* @param refundAddress The address where refunds, if any, should be sent
*/
function payNativeGasForContractCall(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
address refundAddress
) external payable;
/**
* @notice Pay for gas using native currency for a contract call with tokens on a destination chain.
* @dev This function is called on the source chain before calling the gateway to execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call with tokens will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call with tokens
* @param symbol The symbol of the token to be sent with the call
* @param amount The amount of tokens to be sent with the call
* @param refundAddress The address where refunds, if any, should be sent
*/
function payNativeGasForContractCallWithToken(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount,
address refundAddress
) external payable;
/**
* @notice Pay for gas using ERC20 tokens for an express contract call on a destination chain.
* @dev This function is called on the source chain before calling the gateway to express execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call
* @param gasToken The address of the ERC20 token used to pay for gas
* @param gasFeeAmount The amount of tokens to pay for gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function payGasForExpressCall(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Pay for gas using ERC20 tokens for an express contract call with tokens on a destination chain.
* @dev This function is called on the source chain before calling the gateway to express execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call with tokens will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call with tokens
* @param symbol The symbol of the token to be sent with the call
* @param amount The amount of tokens to be sent with the call
* @param gasToken The address of the ERC20 token used to pay for gas
* @param gasFeeAmount The amount of tokens to pay for gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function payGasForExpressCallWithToken(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Pay for gas using native currency for an express contract call on a destination chain.
* @dev This function is called on the source chain before calling the gateway to express execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call
* @param refundAddress The address where refunds, if any, should be sent
*/
function payNativeGasForExpressCall(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
address refundAddress
) external payable;
/**
* @notice Pay for gas using native currency for an express contract call with tokens on a destination chain.
* @dev This function is called on the source chain before calling the gateway to express execute a remote contract.
* @param sender The address making the payment
* @param destinationChain The target chain where the contract call with tokens will be made
* @param destinationAddress The target address on the destination chain
* @param payload Data payload for the contract call with tokens
* @param symbol The symbol of the token to be sent with the call
* @param amount The amount of tokens to be sent with the call
* @param refundAddress The address where refunds, if any, should be sent
*/
function payNativeGasForExpressCallWithToken(
address sender,
string calldata destinationChain,
string calldata destinationAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount,
address refundAddress
) external payable;
/**
* @notice Add additional gas payment using ERC20 tokens after initiating a cross-chain call.
* @dev This function can be called on the source chain after calling the gateway to execute a remote contract.
* @param txHash The transaction hash of the cross-chain call
* @param logIndex The log index for the cross-chain call
* @param gasToken The ERC20 token address used to add gas
* @param gasFeeAmount The amount of tokens to add as gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function addGas(
bytes32 txHash,
uint256 logIndex,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Add additional gas payment using native currency after initiating a cross-chain call.
* @dev This function can be called on the source chain after calling the gateway to execute a remote contract.
* @param txHash The transaction hash of the cross-chain call
* @param logIndex The log index for the cross-chain call
* @param refundAddress The address where refunds, if any, should be sent
*/
function addNativeGas(
bytes32 txHash,
uint256 logIndex,
address refundAddress
) external payable;
/**
* @notice Add additional gas payment using ERC20 tokens after initiating an express cross-chain call.
* @dev This function can be called on the source chain after calling the gateway to express execute a remote contract.
* @param txHash The transaction hash of the cross-chain call
* @param logIndex The log index for the cross-chain call
* @param gasToken The ERC20 token address used to add gas
* @param gasFeeAmount The amount of tokens to add as gas
* @param refundAddress The address where refunds, if any, should be sent
*/
function addExpressGas(
bytes32 txHash,
uint256 logIndex,
address gasToken,
uint256 gasFeeAmount,
address refundAddress
) external;
/**
* @notice Add additional gas payment using native currency after initiating an express cross-chain call.
* @dev This function can be called on the source chain after calling the gateway to express execute a remote contract.
* @param txHash The transaction hash of the cross-chain call
* @param logIndex The log index for the cross-chain call
* @param refundAddress The address where refunds, if any, should be sent
*/
function addNativeExpressGas(
bytes32 txHash,
uint256 logIndex,
address refundAddress
) external payable;
/**
* @notice Allows the gasCollector to collect accumulated fees from the contract.
* @dev Use address(0) as the token address for native currency.
* @param receiver The address to receive the collected fees
* @param tokens Array of token addresses to be collected
* @param amounts Array of amounts to be collected for each respective token address
*/
function collectFees(
address payable receiver,
address[] calldata tokens,
uint256[] calldata amounts
) external;
/**
* @notice Refunds gas payment to the receiver in relation to a specific cross-chain transaction.
* @dev Only callable by the gasCollector.
* @dev Use address(0) as the token address to refund native currency.
* @param txHash The transaction hash of the cross-chain call
* @param logIndex The log index for the cross-chain call
* @param receiver The address to receive the refund
* @param token The token address to be refunded
* @param amount The amount to refund
*/
function refund(
bytes32 txHash,
uint256 logIndex,
address payable receiver,
address token,
uint256 amount
) external;
/**
* @notice Returns the address of the designated gas collector.
* @return address of the gas collector
*/
function gasCollector() external returns (address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IGovernable } from './IGovernable.sol';
import { IImplementation } from './IImplementation.sol';
interface IAxelarGateway is IImplementation, IGovernable {
/**********\
|* Errors *|
\**********/
error NotSelf();
error InvalidCodeHash();
error SetupFailed();
error InvalidAuthModule();
error InvalidTokenDeployer();
error InvalidAmount();
error InvalidChainId();
error InvalidCommands();
error TokenDoesNotExist(string symbol);
error TokenAlreadyExists(string symbol);
error TokenDeployFailed(string symbol);
error TokenContractDoesNotExist(address token);
error BurnFailed(string symbol);
error MintFailed(string symbol);
error InvalidSetMintLimitsParams();
error ExceedMintLimit(string symbol);
/**********\
|* Events *|
\**********/
event TokenSent(
address indexed sender,
string destinationChain,
string destinationAddress,
string symbol,
uint256 amount
);
event ContractCall(
address indexed sender,
string destinationChain,
string destinationContractAddress,
bytes32 indexed payloadHash,
bytes payload
);
event ContractCallWithToken(
address indexed sender,
string destinationChain,
string destinationContractAddress,
bytes32 indexed payloadHash,
bytes payload,
string symbol,
uint256 amount
);
event Executed(bytes32 indexed commandId);
event TokenDeployed(string symbol, address tokenAddresses);
event ContractCallApproved(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
address indexed contractAddress,
bytes32 indexed payloadHash,
bytes32 sourceTxHash,
uint256 sourceEventIndex
);
event ContractCallApprovedWithMint(
bytes32 indexed commandId,
string sourceChain,
string sourceAddress,
address indexed contractAddress,
bytes32 indexed payloadHash,
string symbol,
uint256 amount,
bytes32 sourceTxHash,
uint256 sourceEventIndex
);
event ContractCallExecuted(bytes32 indexed commandId);
event TokenMintLimitUpdated(string symbol, uint256 limit);
event OperatorshipTransferred(bytes newOperatorsData);
event Upgraded(address indexed implementation);
/********************\
|* Public Functions *|
\********************/
function sendToken(
string calldata destinationChain,
string calldata destinationAddress,
string calldata symbol,
uint256 amount
) external;
function callContract(
string calldata destinationChain,
string calldata contractAddress,
bytes calldata payload
) external;
function callContractWithToken(
string calldata destinationChain,
string calldata contractAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount
) external;
function isContractCallApproved(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
address contractAddress,
bytes32 payloadHash
) external view returns (bool);
function isContractCallAndMintApproved(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
address contractAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) external view returns (bool);
function validateContractCall(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash
) external returns (bool);
function validateContractCallAndMint(
bytes32 commandId,
string calldata sourceChain,
string calldata sourceAddress,
bytes32 payloadHash,
string calldata symbol,
uint256 amount
) external returns (bool);
/***********\
|* Getters *|
\***********/
function authModule() external view returns (address);
function tokenDeployer() external view returns (address);
function tokenMintLimit(string memory symbol) external view returns (uint256);
function tokenMintAmount(string memory symbol) external view returns (uint256);
function allTokensFrozen() external view returns (bool);
function implementation() external view returns (address);
function tokenAddresses(string memory symbol) external view returns (address);
function tokenFrozen(string memory symbol) external view returns (bool);
function isCommandExecuted(bytes32 commandId) external view returns (bool);
/************************\
|* Governance Functions *|
\************************/
function setTokenMintLimits(string[] calldata symbols, uint256[] calldata limits) external;
function upgrade(
address newImplementation,
bytes32 newImplementationCodeHash,
bytes calldata setupParams
) external;
/**********************\
|* External Functions *|
\**********************/
function execute(bytes calldata input) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IAxelarExpressExecutable } from './IAxelarExpressExecutable.sol';
/**
* @title IAxelarValuedExpressExecutable
* @dev Interface for the Axelar Valued Express Executable contract.
*/
interface IAxelarValuedExpressExecutable is IAxelarExpressExecutable {
/**
* @dev Returns the value (token address and amount) associated with a contract call
* @param sourceChain The source blockchain.
* @param sourceAddress The source address.
* @param payload The payload data.
* @return tokenAddress The address of the token used.
* @return value The value associated with the contract call.
*/
function contractCallValue(
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload
) external view returns (address tokenAddress, uint256 value);
/**
* @dev Returns the value (token address and amount) associated with a contract call with token.
* @param sourceChain The source blockchain.
* @param sourceAddress The source address.
* @param payload The payload data.
* @param symbol The token symbol.
* @param amount The amount of tokens.
* @return tokenAddress The address of the token used.
* @return value The value associated with the contract call.
*/
function contractCallWithTokenValue(
string calldata sourceChain,
string calldata sourceAddress,
bytes calldata payload,
string calldata symbol,
uint256 amount
) external view returns (address tokenAddress, uint256 value);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// General interface for upgradable contracts
interface IContractIdentifier {
/**
* @notice Returns the contract ID. It can be used as a check during upgrades.
* @dev Meant to be overridden in derived contracts.
* @return bytes32 The contract ID
*/
function contractId() external pure returns (bytes32);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
error InvalidAccount();
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IGovernable Interface
* @notice This is an interface used by the AxelarGateway contract to manage governance and mint limiter roles.
*/
interface IGovernable {
error NotGovernance();
error NotMintLimiter();
error InvalidGovernance();
error InvalidMintLimiter();
event GovernanceTransferred(address indexed previousGovernance, address indexed newGovernance);
event MintLimiterTransferred(address indexed previousGovernance, address indexed newGovernance);
/**
* @notice Returns the governance address.
* @return address of the governance
*/
function governance() external view returns (address);
/**
* @notice Returns the mint limiter address.
* @return address of the mint limiter
*/
function mintLimiter() external view returns (address);
/**
* @notice Transfer the governance role to another address.
* @param newGovernance The new governance address
*/
function transferGovernance(address newGovernance) external;
/**
* @notice Transfer the mint limiter role to another address.
* @param newGovernance The new mint limiter address
*/
function transferMintLimiter(address newGovernance) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IContractIdentifier } from './IContractIdentifier.sol';
interface IImplementation is IContractIdentifier {
error NotProxy();
function setup(bytes calldata data) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IContractIdentifier } from './IContractIdentifier.sol';
/**
* @title IInterchainAddressTracker
* @dev Manages trusted addresses by chain, keeps track of addresses supported by the Axelar gateway contract
*/
interface IInterchainAddressTracker {
error ZeroAddress();
error LengthMismatch();
error ZeroStringLength();
error UntrustedChain();
event TrustedAddressSet(string chain, string address_);
event TrustedAddressRemoved(string chain);
/**
* @dev Gets the name of the chain this is deployed at
*/
function chainName() external view returns (string memory);
/**
* @dev Gets the trusted address at a remote chain
* @param chain Chain name of the remote chain
* @return trustedAddress_ The trusted address for the chain. Returns '' if the chain is untrusted
*/
function trustedAddress(string memory chain) external view returns (string memory trustedAddress_);
/**
* @dev Gets the trusted address hash for a chain
* @param chain Chain name
* @return trustedAddressHash_ the hash of the trusted address for that chain
*/
function trustedAddressHash(string memory chain) external view returns (bytes32 trustedAddressHash_);
/**
* @dev Checks whether the interchain sender is a trusted address
* @param chain Chain name of the sender
* @param address_ Address of the sender
* @return bool true if the sender chain/address are trusted, false otherwise
*/
function isTrustedAddress(string calldata chain, string calldata address_) external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IMulticall
* @notice This contract is a multi-functional smart contract which allows for multiple
* contract calls in a single transaction.
*/
interface IMulticall {
error MulticallFailed();
/**
* @notice Performs multiple delegate calls and returns the results of all calls as an array
* @dev This function requires that the contract has sufficient balance for the delegate calls.
* If any of the calls fail, the function will revert with the failure message.
* @param data An array of encoded function calls
* @return results An bytes array with the return data of each function call
*/
function multicall(bytes[] calldata data) external payable returns (bytes[] memory results);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IOwnable Interface
* @notice IOwnable is an interface that abstracts the implementation of a
* contract with ownership control features. It's commonly used in upgradable
* contracts and includes the functionality to get current owner, transfer
* ownership, and propose and accept ownership.
*/
interface IOwnable {
error NotOwner();
error InvalidOwner();
error InvalidOwnerAddress();
event OwnershipTransferStarted(address indexed newOwner);
event OwnershipTransferred(address indexed newOwner);
/**
* @notice Returns the current owner of the contract.
* @return address The address of the current owner
*/
function owner() external view returns (address);
/**
* @notice Returns the address of the pending owner of the contract.
* @return address The address of the pending owner
*/
function pendingOwner() external view returns (address);
/**
* @notice Transfers ownership of the contract to a new address
* @param newOwner The address to transfer ownership to
*/
function transferOwnership(address newOwner) external;
/**
* @notice Proposes to transfer the contract's ownership to a new address.
* The new owner needs to accept the ownership explicitly.
* @param newOwner The address to transfer ownership to
*/
function proposeOwnership(address newOwner) external;
/**
* @notice Transfers ownership to the pending owner.
* @dev Can only be called by the pending owner
*/
function acceptOwnership() external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title Pausable
* @notice This contract provides a mechanism to halt the execution of specific functions
* if a pause condition is activated.
*/
interface IPausable {
event Paused(address indexed account);
event Unpaused(address indexed account);
error Pause();
error NotPaused();
/**
* @notice Check if the contract is paused
* @return paused A boolean representing the pause status. True if paused, false otherwise.
*/
function paused() external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// General interface for upgradable contracts
interface IProxy {
error InvalidOwner();
error InvalidImplementation();
error SetupFailed();
error NotOwner();
error AlreadyInitialized();
function implementation() external view returns (address);
function setup(bytes calldata setupParams) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IRolesBase Interface
* @notice IRolesBase is an interface that abstracts the implementation of a
* contract with role control internal functions.
*/
interface IRolesBase {
error MissingRole(address account, uint8 role);
error MissingAllRoles(address account, uint256 accountRoles);
error MissingAnyOfRoles(address account, uint256 accountRoles);
error InvalidProposedRoles(address fromAccount, address toAccount, uint256 accountRoles);
event RolesProposed(address indexed fromAccount, address indexed toAccount, uint256 accountRoles);
event RolesAdded(address indexed account, uint256 accountRoles);
event RolesRemoved(address indexed account, uint256 accountRoles);
/**
* @notice Checks if an account has a role.
* @param account The address to check
* @param role The role to check
* @return True if the account has the role, false otherwise
*/
function hasRole(address account, uint8 role) external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IOwnable } from './IOwnable.sol';
import { IImplementation } from './IImplementation.sol';
// General interface for upgradable contracts
interface IUpgradable is IOwnable, IImplementation {
error InvalidCodeHash();
error InvalidImplementation();
error SetupFailed();
event Upgraded(address indexed newImplementation);
function implementation() external view returns (address);
function upgrade(
address newImplementation,
bytes32 newImplementationCodeHash,
bytes calldata params
) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title AddressBytesUtils
* @dev This library provides utility functions to convert between `address` and `bytes`.
*/
library AddressBytes {
error InvalidBytesLength(bytes bytesAddress);
/**
* @dev Converts a bytes address to an address type.
* @param bytesAddress The bytes representation of an address
* @return addr The converted address
*/
function toAddress(bytes memory bytesAddress) internal pure returns (address addr) {
if (bytesAddress.length != 20) revert InvalidBytesLength(bytesAddress);
assembly {
addr := mload(add(bytesAddress, 20))
}
}
/**
* @dev Converts an address to bytes.
* @param addr The address to be converted
* @return bytesAddress The bytes representation of the address
*/
function toBytes(address addr) internal pure returns (bytes memory bytesAddress) {
bytesAddress = new bytes(20);
// we can test if using a single 32 byte variable that is the address with the length together and using one mstore would be slightly cheaper.
assembly {
mstore(add(bytesAddress, 20), addr)
mstore(bytesAddress, 20)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
library StringToBytes32 {
error InvalidStringLength();
function toBytes32(string memory str) internal pure returns (bytes32) {
// Converting a string to bytes32 for immutable storage
bytes memory stringBytes = bytes(str);
// We can store up to 31 bytes of data as 1 byte is for encoding length
if (stringBytes.length == 0 || stringBytes.length > 31) revert InvalidStringLength();
uint256 stringNumber = uint256(bytes32(stringBytes));
// Storing string length as the last byte of the data
stringNumber |= 0xff & stringBytes.length;
return bytes32(stringNumber);
}
}
library Bytes32ToString {
function toTrimmedString(bytes32 stringData) internal pure returns (string memory converted) {
// recovering string length as the last byte of the data
uint256 length = 0xff & uint256(stringData);
// restoring the string with the correct length
assembly {
converted := mload(0x40)
// new "memory end" including padding (the string isn't larger than 32 bytes)
mstore(0x40, add(converted, 0x40))
// store length in memory
mstore(converted, length)
// write actual data
mstore(add(converted, 0x20), stringData)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IERC20 } from '../interfaces/IERC20.sol';
error TokenTransferFailed();
/*
* @title SafeTokenCall
* @dev This library is used for performing safe token transfers.
*/
library SafeTokenCall {
/*
* @notice Make a safe call to a token contract.
* @param token The token contract to interact with.
* @param callData The function call data.
* @throws TokenTransferFailed error if transfer of token is not successful.
*/
function safeCall(IERC20 token, bytes memory callData) internal {
(bool success, bytes memory returnData) = address(token).call(callData);
bool transferred = success && (returnData.length == uint256(0) || abi.decode(returnData, (bool)));
if (!transferred || address(token).code.length == 0) revert TokenTransferFailed();
}
}
/*
* @title SafeTokenTransfer
* @dev This library safely transfers tokens from the contract to a recipient.
*/
library SafeTokenTransfer {
/*
* @notice Transfer tokens to a recipient.
* @param token The token contract.
* @param receiver The recipient of the tokens.
* @param amount The amount of tokens to transfer.
*/
function safeTransfer(
IERC20 token,
address receiver,
uint256 amount
) internal {
SafeTokenCall.safeCall(token, abi.encodeWithSelector(IERC20.transfer.selector, receiver, amount));
}
}
/*
* @title SafeTokenTransferFrom
* @dev This library helps to safely transfer tokens on behalf of a token holder.
*/
library SafeTokenTransferFrom {
/*
* @notice Transfer tokens on behalf of a token holder.
* @param token The token contract.
* @param from The address of the token holder.
* @param to The address the tokens are to be sent to.
* @param amount The amount of tokens to be transferred.
*/
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 amount
) internal {
SafeTokenCall.safeCall(token, abi.encodeWithSelector(IERC20.transferFrom.selector, from, to, amount));
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
library StringStorage {
struct Wrapper {
string value;
}
function set(bytes32 slot, string memory value) internal {
_getStorageStruct(slot).value = value;
}
function get(bytes32 slot) internal view returns (string memory value) {
value = _getStorageStruct(slot).value;
}
function clear(bytes32 slot) internal {
delete _getStorageStruct(slot).value;
}
function _getStorageStruct(bytes32 slot) internal pure returns (Wrapper storage wrapper) {
assembly {
wrapper.slot := slot
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IImplementation } from '../interfaces/IImplementation.sol';
/**
* @title Implementation
* @notice This contract serves as a base for other contracts and enforces a proxy-first access restriction.
* @dev Derived contracts must implement the setup function.
*/
abstract contract Implementation is IImplementation {
address private immutable implementationAddress;
/**
* @dev Contract constructor that sets the implementation address to the address of this contract.
*/
constructor() {
implementationAddress = address(this);
}
/**
* @dev Modifier to require the caller to be the proxy contract.
* Reverts if the caller is the current contract (i.e., the implementation contract itself).
*/
modifier onlyProxy() {
if (implementationAddress == address(this)) revert NotProxy();
_;
}
/**
* @notice Initializes contract parameters.
* This function is intended to be overridden by derived contracts.
* The overriding function must have the onlyProxy modifier.
* @param params The parameters to be used for initialization
*/
function setup(bytes calldata params) external virtual;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IImplementation } from '../interfaces/IImplementation.sol';
import { IUpgradable } from '../interfaces/IUpgradable.sol';
import { Ownable } from '../utils/Ownable.sol';
import { Implementation } from './Implementation.sol';
/**
* @title Upgradable Contract
* @notice This contract provides an interface for upgradable smart contracts and includes the functionality to perform upgrades.
*/
abstract contract Upgradable is Ownable, Implementation, IUpgradable {
// bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @notice Constructor sets the implementation address to the address of the contract itself
* @dev This is used in the onlyProxy modifier to prevent certain functions from being called directly
* on the implementation contract itself.
* @dev The owner is initially set as address(1) because the actual owner is set within the proxy. It is not
* set as the zero address because Ownable is designed to throw an error for ownership transfers to the zero address.
*/
constructor() Ownable(address(1)) {}
/**
* @notice Returns the address of the current implementation
* @return implementation_ Address of the current implementation
*/
function implementation() public view returns (address implementation_) {
assembly {
implementation_ := sload(_IMPLEMENTATION_SLOT)
}
}
/**
* @notice Upgrades the contract to a new implementation
* @param newImplementation The address of the new implementation contract
* @param newImplementationCodeHash The codehash of the new implementation contract
* @param params Optional setup parameters for the new implementation contract
* @dev This function is only callable by the owner.
*/
function upgrade(
address newImplementation,
bytes32 newImplementationCodeHash,
bytes calldata params
) external override onlyOwner {
if (IUpgradable(newImplementation).contractId() != IUpgradable(implementation()).contractId())
revert InvalidImplementation();
if (newImplementationCodeHash != newImplementation.codehash) revert InvalidCodeHash();
emit Upgraded(newImplementation);
if (params.length > 0) {
// slither-disable-next-line controlled-delegatecall
(bool success, ) = newImplementation.delegatecall(abi.encodeWithSelector(this.setup.selector, params));
if (!success) revert SetupFailed();
}
assembly {
sstore(_IMPLEMENTATION_SLOT, newImplementation)
}
}
/**
* @notice Sets up the contract with initial data
* @param data Initialization data for the contract
* @dev This function is only callable by the proxy contract.
*/
function setup(bytes calldata data) external override(IImplementation, Implementation) onlyProxy {
_setup(data);
}
/**
* @notice Internal function to set up the contract with initial data
* @param data Initialization data for the contract
* @dev This function should be implemented in derived contracts.
*/
function _setup(bytes calldata data) internal virtual {}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IInterchainAddressTracker } from '../interfaces/IInterchainAddressTracker.sol';
import { StringStorage } from '../libs/StringStorage.sol';
/**
* @title InterchainAddressTracker
* @dev Manages and validates trusted interchain addresses of an application.
*/
contract InterchainAddressTracker is IInterchainAddressTracker {
bytes32 internal constant PREFIX_ADDRESS_MAPPING = keccak256('interchain-address-tracker-address-mapping');
bytes32 internal constant PREFIX_ADDRESS_HASH_MAPPING =
keccak256('interchain-address-tracker-address-hash-mapping');
// bytes32(uint256(keccak256('interchain-address-tracker-chain-name')) - 1)
bytes32 internal constant _CHAIN_NAME_SLOT = 0x0e2c162a1f4b5cff9fdbd6b34678a9bcb9898a0b9fbca695b112d61688d8b2ac;
function _setChainName(string memory chainName_) internal {
StringStorage.set(_CHAIN_NAME_SLOT, chainName_);
}
/**
* @dev Gets the name of the chain this is deployed at
*/
function chainName() external view returns (string memory chainName_) {
chainName_ = StringStorage.get(_CHAIN_NAME_SLOT);
}
/**
* @dev Gets the trusted address at a remote chain
* @param chain Chain name of the remote chain
* @return trustedAddress_ The trusted address for the chain. Returns '' if the chain is untrusted
*/
function trustedAddress(string memory chain) public view returns (string memory trustedAddress_) {
trustedAddress_ = StringStorage.get(_getTrustedAddressSlot(chain));
}
/**
* @dev Gets the trusted address hash for a chain
* @param chain Chain name
* @return trustedAddressHash_ the hash of the trusted address for that chain
*/
function trustedAddressHash(string memory chain) public view returns (bytes32 trustedAddressHash_) {
bytes32 slot = _getTrustedAddressHashSlot(chain);
assembly {
trustedAddressHash_ := sload(slot)
}
}
/**
* @dev Checks whether the interchain sender is a trusted address
* @param chain Chain name of the sender
* @param address_ Address of the sender
* @return bool true if the sender chain/address are trusted, false otherwise
*/
function isTrustedAddress(string calldata chain, string calldata address_) public view returns (bool) {
bytes32 addressHash = keccak256(bytes(address_));
return addressHash == trustedAddressHash(chain);
}
/**
* @dev Gets the key for the trusted address at a remote chain
* @param chain Chain name of the remote chain
* @return slot the slot to store the trusted address in
*/
function _getTrustedAddressSlot(string memory chain) internal pure returns (bytes32 slot) {
slot = keccak256(abi.encode(PREFIX_ADDRESS_MAPPING, chain));
}
/**
* @dev Gets the key for the trusted address at a remote chain
* @param chain Chain name of the remote chain
* @return slot the slot to store the trusted address hash in
*/
function _getTrustedAddressHashSlot(string memory chain) internal pure returns (bytes32 slot) {
slot = keccak256(abi.encode(PREFIX_ADDRESS_HASH_MAPPING, chain));
}
/**
* @dev Sets the trusted address and its hash for a remote chain
* @param chain Chain name of the remote chain
* @param address_ the string representation of the trusted address
*/
function _setTrustedAddress(string memory chain, string memory address_) internal {
if (bytes(chain).length == 0) revert ZeroStringLength();
if (bytes(address_).length == 0) revert ZeroStringLength();
StringStorage.set(_getTrustedAddressSlot(chain), address_);
bytes32 slot = _getTrustedAddressHashSlot(chain);
bytes32 addressHash = keccak256(bytes(address_));
assembly {
sstore(slot, addressHash)
}
emit TrustedAddressSet(chain, address_);
}
/**
* @dev Remove the trusted address of the chain.
* @param chain Chain name that should be made untrusted
*/
function _removeTrustedAddress(string memory chain) internal {
if (bytes(chain).length == 0) revert ZeroStringLength();
StringStorage.clear(_getTrustedAddressSlot(chain));
bytes32 slot = _getTrustedAddressHashSlot(chain);
assembly {
sstore(slot, 0)
}
emit TrustedAddressRemoved(chain);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IMulticall } from '../interfaces/IMulticall.sol';
/**
* @title Multicall
* @notice This contract is a multi-functional smart contract which allows for multiple
* contract calls in a single transaction.
*/
contract Multicall is IMulticall {
/**
* @notice Performs multiple delegate calls and returns the results of all calls as an array
* @dev This function requires that the contract has sufficient balance for the delegate calls.
* If any of the calls fail, the function will revert with the failure message.
* @param data An array of encoded function calls
* @return results An bytes array with the return data of each function call
*/
function multicall(bytes[] calldata data) public payable returns (bytes[] memory results) {
results = new bytes[](data.length);
bool success;
bytes memory result;
for (uint256 i = 0; i < data.length; ++i) {
// slither-disable-next-line calls-loop,delegatecall-loop
(success, result) = address(this).delegatecall(data[i]);
if (!success) {
if (result.length == 0) revert MulticallFailed();
assembly {
revert(add(32, result), mload(result))
}
}
results[i] = result;
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IOwnable } from '../interfaces/IOwnable.sol';
/**
* @title Ownable
* @notice A contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The owner account is set through ownership transfer. This module makes
* it possible to transfer the ownership of the contract to a new account in one
* step, as well as to an interim pending owner. In the second flow the ownership does not
* change until the pending owner accepts the ownership transfer.
*/
abstract contract Ownable is IOwnable {
// keccak256('owner')
bytes32 internal constant _OWNER_SLOT = 0x02016836a56b71f0d02689e69e326f4f4c1b9057164ef592671cf0d37c8040c0;
// keccak256('ownership-transfer')
bytes32 internal constant _OWNERSHIP_TRANSFER_SLOT =
0x9855384122b55936fbfb8ca5120e63c6537a1ac40caf6ae33502b3c5da8c87d1;
/**
* @notice Initializes the contract by transferring ownership to the owner parameter.
* @param _owner Address to set as the initial owner of the contract
*/
constructor(address _owner) {
_transferOwnership(_owner);
}
/**
* @notice Modifier that throws an error if called by any account other than the owner.
*/
modifier onlyOwner() {
if (owner() != msg.sender) revert NotOwner();
_;
}
/**
* @notice Returns the current owner of the contract.
* @return owner_ The current owner of the contract
*/
function owner() public view returns (address owner_) {
assembly {
owner_ := sload(_OWNER_SLOT)
}
}
/**
* @notice Returns the pending owner of the contract.
* @return owner_ The pending owner of the contract
*/
function pendingOwner() public view returns (address owner_) {
assembly {
owner_ := sload(_OWNERSHIP_TRANSFER_SLOT)
}
}
/**
* @notice Transfers ownership of the contract to a new account `newOwner`.
* @dev Can only be called by the current owner.
* @param newOwner The address to transfer ownership to
*/
function transferOwnership(address newOwner) external virtual onlyOwner {
_transferOwnership(newOwner);
}
/**
* @notice Propose to transfer ownership of the contract to a new account `newOwner`.
* @dev Can only be called by the current owner. The ownership does not change
* until the new owner accepts the ownership transfer.
* @param newOwner The address to transfer ownership to
*/
function proposeOwnership(address newOwner) external virtual onlyOwner {
if (newOwner == address(0)) revert InvalidOwnerAddress();
emit OwnershipTransferStarted(newOwner);
assembly {
sstore(_OWNERSHIP_TRANSFER_SLOT, newOwner)
}
}
/**
* @notice Accepts ownership of the contract.
* @dev Can only be called by the pending owner
*/
function acceptOwnership() external virtual {
address newOwner = pendingOwner();
if (newOwner != msg.sender) revert InvalidOwner();
_transferOwnership(newOwner);
}
/**
* @notice Internal function to transfer ownership of the contract to a new account `newOwner`.
* @dev Called in the constructor to set the initial owner.
* @param newOwner The address to transfer ownership to
*/
function _transferOwnership(address newOwner) internal virtual {
if (newOwner == address(0)) revert InvalidOwnerAddress();
emit OwnershipTransferred(newOwner);
assembly {
sstore(_OWNER_SLOT, newOwner)
sstore(_OWNERSHIP_TRANSFER_SLOT, 0)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IPausable } from '../interfaces/IPausable.sol';
/**
* @title Pausable
* @notice This contract provides a mechanism to halt the execution of specific functions
* if a pause condition is activated.
*/
contract Pausable is IPausable {
// uint256(keccak256('paused')) - 1
uint256 internal constant PAUSE_SLOT = 0xee35723ac350a69d2a92d3703f17439cbaadf2f093a21ba5bf5f1a53eb2a14d8;
/**
* @notice A modifier that throws a Paused custom error if the contract is paused
* @dev This modifier should be used with functions that can be paused
*/
modifier whenNotPaused() {
if (paused()) revert Pause();
_;
}
modifier whenPaused() {
if (!paused()) revert NotPaused();
_;
}
/**
* @notice Check if the contract is paused
* @return paused_ A boolean representing the pause status. True if paused, false otherwise.
*/
function paused() public view returns (bool paused_) {
assembly {
paused_ := sload(PAUSE_SLOT)
}
}
/**
* @notice Pauses the contract
* @dev This function should be callable by the owner/governance.
*/
function _pause() internal {
_setPaused(true);
emit Paused(msg.sender);
}
/**
* @notice Unpauses the contract
* @dev This function should be callable by the owner/governance.
*/
function _unpause() internal {
_setPaused(false);
emit Unpaused(msg.sender);
}
/**
* @notice Sets the pause status of the contract
* @dev This is an internal function, meaning it can only be called from within the contract itself
* or from derived contracts.
* @param paused_ The new pause status
*/
function _setPaused(bool paused_) internal {
assembly {
sstore(PAUSE_SLOT, paused_)
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IRolesBase } from '../interfaces/IRolesBase.sol';
/**
* @title RolesBase
* @notice A contract module which provides a set if internal functions
* for implementing role control features.
*/
contract RolesBase is IRolesBase {
bytes32 internal constant ROLES_PREFIX = keccak256('roles');
bytes32 internal constant PROPOSE_ROLES_PREFIX = keccak256('propose-roles');
/**
* @notice Modifier that throws an error if called by any account missing the role.
*/
modifier onlyRole(uint8 role) {
if (!_hasRole(_getRoles(msg.sender), role)) revert MissingRole(msg.sender, role);
_;
}
/**
* @notice Modifier that throws an error if called by an account without all the roles.
*/
modifier withEveryRole(uint8[] memory roles) {
uint256 accountRoles = _toAccountRoles(roles);
if (!_hasAllTheRoles(_getRoles(msg.sender), accountRoles)) revert MissingAllRoles(msg.sender, accountRoles);
_;
}
/**
* @notice Modifier that throws an error if called by an account without any of the roles.
*/
modifier withAnyRole(uint8[] memory roles) {
uint256 accountRoles = _toAccountRoles(roles);
if (!_hasAnyOfRoles(_getRoles(msg.sender), accountRoles)) revert MissingAnyOfRoles(msg.sender, accountRoles);
_;
}
/**
* @notice Checks if an account has a role.
* @param account The address to check
* @param role The role to check
* @return True if the account has the role, false otherwise
*/
function hasRole(address account, uint8 role) public view returns (bool) {
return _hasRole(_getRoles(account), role);
}
/**
* @notice Internal function to convert an array of roles to a uint256.
* @param roles The roles to convert
* @return accountRoles The roles in uint256 format
*/
function _toAccountRoles(uint8[] memory roles) internal pure returns (uint256) {
uint256 length = roles.length;
uint256 accountRoles;
for (uint256 i = 0; i < length; ++i) {
accountRoles |= (1 << roles[i]);
}
return accountRoles;
}
/**
* @notice Internal function to get the key of the roles mapping.
* @param account The address to get the key for
* @return key The key of the roles mapping
*/
function _rolesKey(address account) internal view virtual returns (bytes32 key) {
return keccak256(abi.encodePacked(ROLES_PREFIX, account));
}
/**
* @notice Internal function to get the roles of an account.
* @param account The address to get the roles for
* @return accountRoles The roles of the account in uint256 format
*/
function _getRoles(address account) internal view returns (uint256 accountRoles) {
bytes32 key = _rolesKey(account);
assembly {
accountRoles := sload(key)
}
}
/**
* @notice Internal function to set the roles of an account.
* @param account The address to set the roles for
* @param accountRoles The roles to set
*/
function _setRoles(address account, uint256 accountRoles) private {
bytes32 key = _rolesKey(account);
assembly {
sstore(key, accountRoles)
}
}
/**
* @notice Internal function to get the key of the proposed roles mapping.
* @param fromAccount The address of the current role
* @param toAccount The address of the pending role
* @return key The key of the proposed roles mapping
*/
function _proposalKey(address fromAccount, address toAccount) internal view virtual returns (bytes32 key) {
return keccak256(abi.encodePacked(PROPOSE_ROLES_PREFIX, fromAccount, toAccount));
}
/**
* @notice Internal function to get the proposed roles of an account.
* @param fromAccount The address of the current role
* @param toAccount The address of the pending role
* @return proposedRoles_ The proposed roles of the account in uint256 format
*/
function _getProposedRoles(address fromAccount, address toAccount) internal view returns (uint256 proposedRoles_) {
bytes32 key = _proposalKey(fromAccount, toAccount);
assembly {
proposedRoles_ := sload(key)
}
}
/**
* @notice Internal function to set the proposed roles of an account.
* @param fromAccount The address of the current role
* @param toAccount The address of the pending role
* @param proposedRoles_ The proposed roles to set in uint256 format
*/
function _setProposedRoles(
address fromAccount,
address toAccount,
uint256 proposedRoles_
) private {
bytes32 key = _proposalKey(fromAccount, toAccount);
assembly {
sstore(key, proposedRoles_)
}
}
/**
* @notice Internal function to add a role to an account.
* @dev emits a RolesAdded event.
* @param account The address to add the role to
* @param role The role to add
*/
function _addRole(address account, uint8 role) internal {
_addAccountRoles(account, 1 << role);
}
/**
* @notice Internal function to add roles to an account.
* @dev emits a RolesAdded event.
* @dev Called in the constructor to set the initial roles.
* @param account The address to add roles to
* @param roles The roles to add
*/
function _addRoles(address account, uint8[] memory roles) internal {
_addAccountRoles(account, _toAccountRoles(roles));
}
/**
* @notice Internal function to add roles to an account.
* @dev emits a RolesAdded event.
* @dev Called in the constructor to set the initial roles.
* @param account The address to add roles to
* @param accountRoles The roles to add
*/
function _addAccountRoles(address account, uint256 accountRoles) internal {
uint256 newAccountRoles = _getRoles(account) | accountRoles;
_setRoles(account, newAccountRoles);
emit RolesAdded(account, accountRoles);
}
/**
* @notice Internal function to remove a role from an account.
* @dev emits a RolesRemoved event.
* @param account The address to remove the role from
* @param role The role to remove
*/
function _removeRole(address account, uint8 role) internal {
_removeAccountRoles(account, 1 << role);
}
/**
* @notice Internal function to remove roles from an account.
* @dev emits a RolesRemoved event.
* @param account The address to remove roles from
* @param roles The roles to remove
*/
function _removeRoles(address account, uint8[] memory roles) internal {
_removeAccountRoles(account, _toAccountRoles(roles));
}
/**
* @notice Internal function to remove roles from an account.
* @dev emits a RolesRemoved event.
* @param account The address to remove roles from
* @param accountRoles The roles to remove
*/
function _removeAccountRoles(address account, uint256 accountRoles) internal {
uint256 newAccountRoles = _getRoles(account) & ~accountRoles;
_setRoles(account, newAccountRoles);
emit RolesRemoved(account, accountRoles);
}
/**
* @notice Internal function to check if an account has a role.
* @param accountRoles The roles of the account in uint256 format
* @param role The role to check
* @return True if the account has the role, false otherwise
*/
function _hasRole(uint256 accountRoles, uint8 role) internal pure returns (bool) {
return accountRoles & (1 << role) != 0;
}
/**
* @notice Internal function to check if an account has all the roles.
* @param hasAccountRoles The roles of the account in uint256 format
* @param mustHaveAccountRoles The roles the account must have
* @return True if the account has all the roles, false otherwise
*/
function _hasAllTheRoles(uint256 hasAccountRoles, uint256 mustHaveAccountRoles) internal pure returns (bool) {
return (hasAccountRoles & mustHaveAccountRoles) == mustHaveAccountRoles;
}
/**
* @notice Internal function to check if an account has any of the roles.
* @param hasAccountRoles The roles of the account in uint256 format
* @param mustHaveAnyAccountRoles The roles to check in uint256 format
* @return True if the account has any of the roles, false otherwise
*/
function _hasAnyOfRoles(uint256 hasAccountRoles, uint256 mustHaveAnyAccountRoles) internal pure returns (bool) {
return (hasAccountRoles & mustHaveAnyAccountRoles) != 0;
}
/**
* @notice Internal function to propose to transfer roles of message sender to a new account.
* @dev Original account must have all the proposed roles.
* @dev Emits a RolesProposed event.
* @dev Roles are not transferred until the new role accepts the role transfer.
* @param fromAccount The address of the current roles
* @param toAccount The address to transfer roles to
* @param role The role to transfer
*/
function _proposeRole(
address fromAccount,
address toAccount,
uint8 role
) internal {
_proposeAccountRoles(fromAccount, toAccount, 1 << role);
}
/**
* @notice Internal function to propose to transfer roles of message sender to a new account.
* @dev Original account must have all the proposed roles.
* @dev Emits a RolesProposed event.
* @dev Roles are not transferred until the new role accepts the role transfer.
* @param fromAccount The address of the current roles
* @param toAccount The address to transfer roles to
* @param roles The roles to transfer
*/
function _proposeRoles(
address fromAccount,
address toAccount,
uint8[] memory roles
) internal {
_proposeAccountRoles(fromAccount, toAccount, _toAccountRoles(roles));
}
/**
* @notice Internal function to propose to transfer roles of message sender to a new account.
* @dev Original account must have all the proposed roles.
* @dev Emits a RolesProposed event.
* @dev Roles are not transferred until the new role accepts the role transfer.
* @param fromAccount The address of the current roles
* @param toAccount The address to transfer roles to
* @param accountRoles The account roles to transfer
*/
function _proposeAccountRoles(
address fromAccount,
address toAccount,
uint256 accountRoles
) internal {
if (!_hasAllTheRoles(_getRoles(fromAccount), accountRoles)) revert MissingAllRoles(fromAccount, accountRoles);
_setProposedRoles(fromAccount, toAccount, accountRoles);
emit RolesProposed(fromAccount, toAccount, accountRoles);
}
/**
* @notice Internal function to accept roles transferred from another account.
* @dev Pending account needs to pass all the proposed roles.
* @dev Emits RolesRemoved and RolesAdded events.
* @param fromAccount The address of the current role
* @param role The role to accept
*/
function _acceptRole(
address fromAccount,
address toAccount,
uint8 role
) internal virtual {
_acceptAccountRoles(fromAccount, toAccount, 1 << role);
}
/**
* @notice Internal function to accept roles transferred from another account.
* @dev Pending account needs to pass all the proposed roles.
* @dev Emits RolesRemoved and RolesAdded events.
* @param fromAccount The address of the current role
* @param roles The roles to accept
*/
function _acceptRoles(
address fromAccount,
address toAccount,
uint8[] memory roles
) internal virtual {
_acceptAccountRoles(fromAccount, toAccount, _toAccountRoles(roles));
}
/**
* @notice Internal function to accept roles transferred from another account.
* @dev Pending account needs to pass all the proposed roles.
* @dev Emits RolesRemoved and RolesAdded events.
* @param fromAccount The address of the current role
* @param accountRoles The account roles to accept
*/
function _acceptAccountRoles(
address fromAccount,
address toAccount,
uint256 accountRoles
) internal virtual {
if (_getProposedRoles(fromAccount, toAccount) != accountRoles) {
revert InvalidProposedRoles(fromAccount, toAccount, accountRoles);
}
_setProposedRoles(fromAccount, toAccount, 0);
_transferAccountRoles(fromAccount, toAccount, accountRoles);
}
/**
* @notice Internal function to transfer roles from one account to another.
* @dev Original account must have all the proposed roles.
* @param fromAccount The address of the current role
* @param toAccount The address to transfer role to
* @param role The role to transfer
*/
function _transferRole(
address fromAccount,
address toAccount,
uint8 role
) internal {
_transferAccountRoles(fromAccount, toAccount, 1 << role);
}
/**
* @notice Internal function to transfer roles from one account to another.
* @dev Original account must have all the proposed roles.
* @param fromAccount The address of the current role
* @param toAccount The address to transfer role to
* @param roles The roles to transfer
*/
function _transferRoles(
address fromAccount,
address toAccount,
uint8[] memory roles
) internal {
_transferAccountRoles(fromAccount, toAccount, _toAccountRoles(roles));
}
/**
* @notice Internal function to transfer roles from one account to another.
* @dev Original account must have all the proposed roles.
* @param fromAccount The address of the current role
* @param toAccount The address to transfer role to
* @param accountRoles The account roles to transfer
*/
function _transferAccountRoles(
address fromAccount,
address toAccount,
uint256 accountRoles
) internal {
if (!_hasAllTheRoles(_getRoles(fromAccount), accountRoles)) revert MissingAllRoles(fromAccount, accountRoles);
_removeAccountRoles(fromAccount, accountRoles);
_addAccountRoles(toAccount, accountRoles);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IInterchainAddressTracker } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IInterchainAddressTracker.sol';
/**
* @title IAddressTracker Interface
* @notice This interface allows setting and removing a trusted address for a specific chain.
* @dev Extends the IInterchainAddressTracker interface.
*/
interface IAddressTracker is IInterchainAddressTracker {
/**
* @notice Sets the trusted address for the specified chain.
* @param chain Chain name to be trusted.
* @param address_ Trusted address to be added for the chain.
*/
function setTrustedAddress(string memory chain, string memory address_) external;
/**
* @notice Remove the trusted address of the chain.
* @param chain Chain name to remove the trusted address for.
*/
function removeTrustedAddress(string calldata chain) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IBaseTokenManager
* @notice This contract is defines the base token manager interface implemented by all token managers.
*/
interface IBaseTokenManager {
/**
* @notice A function that returns the token id.
*/
function interchainTokenId() external view returns (bytes32);
/**
* @notice A function that should return the address of the token.
* Must be overridden in the inheriting contract.
* @return address address of the token.
*/
function tokenAddress() external view returns (address);
/**
* @notice A function that should return the token address from the init params.
*/
function getTokenAddressFromParams(bytes calldata params) external pure returns (address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title FlowLimit Interface
* @notice Interface for flow limit logic for interchain token transfers.
*/
interface IFlowLimit {
error FlowLimitExceeded(uint256 limit, uint256 flowAmount, address tokenManager);
event FlowLimitSet(bytes32 indexed tokenId, address operator, uint256 flowLimit_);
/**
* @notice Returns the current flow limit.
* @return flowLimit_ The current flow limit value.
*/
function flowLimit() external view returns (uint256 flowLimit_);
/**
* @notice Returns the current flow out amount.
* @return flowOutAmount_ The current flow out amount.
*/
function flowOutAmount() external view returns (uint256 flowOutAmount_);
/**
* @notice Returns the current flow in amount.
* @return flowInAmount_ The current flow in amount.
*/
function flowInAmount() external view returns (uint256 flowInAmount_);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IInterchainTokenDeployer
* @notice This interface is used to deploy new instances of the InterchainTokenProxy contract.
*/
interface IInterchainTokenDeployer {
error AddressZero();
error TokenDeploymentFailed();
/**
* @notice Returns the interchain token implementation address.
* @return address The interchain token implementation address.
*/
function implementationAddress() external view returns (address);
/**
* @notice Returns the interchain token deployment address.
* @param salt The deployment salt.
* @return tokenAddress The token address.
*/
function deployedAddress(bytes32 salt) external view returns (address tokenAddress);
/**
* @notice Deploys a new instance of the InterchainTokenProxy contract.
* @param salt The salt used by Create3Deployer.
* @param tokenId tokenId of the token.
* @param minter Address of the minter.
* @param name Name of the token.
* @param symbol Symbol of the token.
* @param decimals Decimals of the token.
* @return tokenAddress Address of the deployed token.
*/
function deployInterchainToken(
bytes32 salt,
bytes32 tokenId,
address minter,
string calldata name,
string calldata symbol,
uint8 decimals
) external returns (address tokenAddress);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IInterchainTokenExecutable
* @notice Contracts should implement this interface to accept calls from the InterchainTokenService.
*/
interface IInterchainTokenExecutable {
/**
* @notice This will be called after the tokens are sent to this contract.
* @dev Execution should revert unless the msg.sender is the InterchainTokenService
* @param commandId The unique message id for the call.
* @param sourceChain The name of the source chain.
* @param sourceAddress The address that sent the contract call.
* @param data The data to be processed.
* @param tokenId The tokenId of the token manager managing the token.
* @param token The address of the token.
* @param amount The amount of tokens that were sent.
* @return bytes32 Hash indicating success of the execution.
*/
function executeWithInterchainToken(
bytes32 commandId,
string calldata sourceChain,
bytes calldata sourceAddress,
bytes calldata data,
bytes32 tokenId,
address token,
uint256 amount
) external returns (bytes32);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IInterchainTokenExecutable } from './IInterchainTokenExecutable.sol';
/**
* @title IInterchainTokenExpressExecutable
* @notice Contracts should implement this interface to accept express calls from the InterchainTokenService.
*/
interface IInterchainTokenExpressExecutable is IInterchainTokenExecutable {
/**
* @notice Executes express logic in the context of an interchain token transfer.
* @dev Only callable by the interchain token service.
* @param commandId The unique message id for the call.
* @param sourceChain The source chain of the token transfer.
* @param sourceAddress The source address of the token transfer.
* @param data The data associated with the token transfer.
* @param tokenId The token ID.
* @param token The token address.
* @param amount The amount of tokens to be transferred.
* @return bytes32 Hash indicating success of the express execution.
*/
function expressExecuteWithInterchainToken(
bytes32 commandId,
string calldata sourceChain,
bytes calldata sourceAddress,
bytes calldata data,
bytes32 tokenId,
address token,
uint256 amount
) external returns (bytes32);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IAxelarValuedExpressExecutable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarValuedExpressExecutable.sol';
import { IMulticall } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IMulticall.sol';
import { IPausable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IPausable.sol';
import { IUpgradable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IUpgradable.sol';
import { ITransmitInterchainToken } from './ITransmitInterchainToken.sol';
import { ITokenManagerType } from './ITokenManagerType.sol';
import { ITokenManagerImplementation } from './ITokenManagerImplementation.sol';
import { IOperator } from './IOperator.sol';
import { IAddressTracker } from './IAddressTracker.sol';
/**
* @title IInterchainTokenService Interface
* @notice Interface for the Interchain Token Service
*/
interface IInterchainTokenService is
ITransmitInterchainToken,
ITokenManagerType,
ITokenManagerImplementation,
IAxelarValuedExpressExecutable,
IOperator,
IPausable,
IMulticall,
IAddressTracker,
IUpgradable
{
error InvalidTokenManagerImplementationType(address implementation);
error InvalidChainName();
error NotRemoteService();
error TokenManagerDoesNotExist(bytes32 tokenId);
error NotToken(address caller, address token);
error ExecuteWithInterchainTokenFailed(address contractAddress);
error ExpressExecuteWithInterchainTokenFailed(address contractAddress);
error GatewayToken();
error TokenManagerDeploymentFailed(bytes error);
error InterchainTokenDeploymentFailed(bytes error);
error InvalidMessageType(uint256 messageType);
error InvalidMetadataVersion(uint32 version);
error ExecuteWithTokenNotSupported();
error InvalidExpressMessageType(uint256 messageType);
error TakeTokenFailed(bytes data);
error GiveTokenFailed(bytes data);
error TokenHandlerFailed(bytes data);
error EmptyData();
error CannotDeploy(TokenManagerType);
event InterchainTransfer(
bytes32 indexed tokenId,
address indexed sourceAddress,
string destinationChain,
bytes destinationAddress,
uint256 amount,
bytes32 indexed dataHash
);
event InterchainTransferReceived(
bytes32 indexed commandId,
bytes32 indexed tokenId,
string sourceChain,
bytes sourceAddress,
address indexed destinationAddress,
uint256 amount,
bytes32 dataHash
);
event TokenManagerDeploymentStarted(
bytes32 indexed tokenId,
string destinationChain,
TokenManagerType indexed tokenManagerType,
bytes params
);
event InterchainTokenDeploymentStarted(
bytes32 indexed tokenId,
string tokenName,
string tokenSymbol,
uint8 tokenDecimals,
bytes minter,
string destinationChain
);
event TokenManagerDeployed(bytes32 indexed tokenId, address tokenManager, TokenManagerType indexed tokenManagerType, bytes params);
event InterchainTokenDeployed(
bytes32 indexed tokenId,
address tokenAddress,
address indexed minter,
string name,
string symbol,
uint8 decimals
);
event InterchainTokenIdClaimed(bytes32 indexed tokenId, address indexed deployer, bytes32 indexed salt);
/**
* @notice Returns the address of the token manager deployer contract.
* @return tokenManagerDeployerAddress The address of the token manager deployer contract.
*/
function tokenManagerDeployer() external view returns (address tokenManagerDeployerAddress);
/**
* @notice Returns the address of the interchain token deployer contract.
* @return interchainTokenDeployerAddress The address of the interchain token deployer contract.
*/
function interchainTokenDeployer() external view returns (address interchainTokenDeployerAddress);
/**
* @notice Returns the address of TokenManager implementation.
* @return tokenManagerAddress_ The address of the token manager contract.
*/
function tokenManager() external view returns (address tokenManagerAddress_);
/**
* @notice Returns the address of TokenHandler implementation.
* @return tokenHandlerAddress The address of the token handler contract.
*/
function tokenHandler() external view returns (address tokenHandlerAddress);
/**
* @notice Returns the address of the interchain token factory.
* @return address The address of the interchain token factory.
*/
function interchainTokenFactory() external view returns (address);
/**
* @notice Returns the hash of the chain name.
* @return bytes32 The hash of the chain name.
*/
function chainNameHash() external view returns (bytes32);
/**
* @notice Returns the address of the token manager associated with the given tokenId.
* @param tokenId The tokenId of the token manager.
* @return tokenManagerAddress_ The address of the token manager.
*/
function tokenManagerAddress(bytes32 tokenId) external view returns (address tokenManagerAddress_);
/**
* @notice Returns the address of the valid token manager associated with the given tokenId.
* @param tokenId The tokenId of the token manager.
* @return tokenManagerAddress_ The address of the valid token manager.
*/
function validTokenManagerAddress(bytes32 tokenId) external view returns (address tokenManagerAddress_);
/**
* @notice Returns the address of the token that an existing tokenManager points to.
* @param tokenId The tokenId of the token manager.
* @return tokenAddress The address of the token.
*/
function validTokenAddress(bytes32 tokenId) external view returns (address tokenAddress);
/**
* @notice Returns the address of the interchain token associated with the given tokenId.
* @param tokenId The tokenId of the interchain token.
* @return tokenAddress The address of the interchain token.
*/
function interchainTokenAddress(bytes32 tokenId) external view returns (address tokenAddress);
/**
* @notice Returns the custom tokenId associated with the given operator and salt.
* @param operator_ The operator address.
* @param salt The salt used for token id calculation.
* @return tokenId The custom tokenId associated with the operator and salt.
*/
function interchainTokenId(address operator_, bytes32 salt) external view returns (bytes32 tokenId);
/**
* @notice Deploys a custom token manager contract on a remote chain.
* @param salt The salt used for token manager deployment.
* @param destinationChain The name of the destination chain.
* @param tokenManagerType The type of token manager. Cannot be NATIVE_INTERCHAIN_TOKEN.
* @param params The deployment parameters.
* @param gasValue The gas value for deployment.
* @return tokenId The tokenId associated with the token manager.
*/
function deployTokenManager(
bytes32 salt,
string calldata destinationChain,
TokenManagerType tokenManagerType,
bytes calldata params,
uint256 gasValue
) external payable returns (bytes32 tokenId);
/**
* @notice Deploys and registers an interchain token on a remote chain.
* @param salt The salt used for token deployment.
* @param destinationChain The name of the destination chain. Use '' for this chain.
* @param name The name of the interchain tokens.
* @param symbol The symbol of the interchain tokens.
* @param decimals The number of decimals for the interchain tokens.
* @param minter The minter data for mint/burn operations.
* @param gasValue The gas value for deployment.
* @return tokenId The tokenId corresponding to the deployed InterchainToken.
*/
function deployInterchainToken(
bytes32 salt,
string calldata destinationChain,
string memory name,
string memory symbol,
uint8 decimals,
bytes memory minter,
uint256 gasValue
) external payable returns (bytes32 tokenId);
/**
* @notice Initiates an interchain transfer of a specified token to a destination chain.
* @param tokenId The unique identifier of the token to be transferred.
* @param destinationChain The destination chain to send the tokens to.
* @param destinationAddress The address on the destination chain to send the tokens to.
* @param amount The amount of tokens to be transferred.
* @param metadata Optional metadata for the call for additional effects (such as calling a destination contract).
*/
function interchainTransfer(
bytes32 tokenId,
string calldata destinationChain,
bytes calldata destinationAddress,
uint256 amount,
bytes calldata metadata,
uint256 gasValue
) external payable;
/**
* @notice Initiates an interchain call contract with interchain token to a destination chain.
* @param tokenId The unique identifier of the token to be transferred.
* @param destinationChain The destination chain to send the tokens to.
* @param destinationAddress The address on the destination chain to send the tokens to.
* @param amount The amount of tokens to be transferred.
* @param data Additional data to be passed along with the transfer.
*/
function callContractWithInterchainToken(
bytes32 tokenId,
string calldata destinationChain,
bytes calldata destinationAddress,
uint256 amount,
bytes calldata data,
uint256 gasValue
) external payable;
/**
* @notice Sets the flow limits for multiple tokens.
* @param tokenIds An array of tokenIds.
* @param flowLimits An array of flow limits corresponding to the tokenIds.
*/
function setFlowLimits(bytes32[] calldata tokenIds, uint256[] calldata flowLimits) external;
/**
* @notice Returns the flow limit for a specific token.
* @param tokenId The tokenId of the token.
* @return flowLimit_ The flow limit for the token.
*/
function flowLimit(bytes32 tokenId) external view returns (uint256 flowLimit_);
/**
* @notice Returns the total amount of outgoing flow for a specific token.
* @param tokenId The tokenId of the token.
* @return flowOutAmount_ The total amount of outgoing flow for the token.
*/
function flowOutAmount(bytes32 tokenId) external view returns (uint256 flowOutAmount_);
/**
* @notice Returns the total amount of incoming flow for a specific token.
* @param tokenId The tokenId of the token.
* @return flowInAmount_ The total amount of incoming flow for the token.
*/
function flowInAmount(bytes32 tokenId) external view returns (uint256 flowInAmount_);
/**
* @notice Allows the owner to pause/unpause the token service.
* @param paused whether to pause or unpause.
*/
function setPauseStatus(bool paused) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IRolesBase } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IRolesBase.sol';
/**
* @title IOperator Interface
* @notice An interface for a contract module which provides a basic access control mechanism, where
* there is an account (a operator) that can be granted exclusive access to specific functions.
*/
interface IOperator is IRolesBase {
/**
* @notice Change the operator of the contract.
* @dev Can only be called by the current operator.
* @param operator_ The address of the new operator.
*/
function transferOperatorship(address operator_) external;
/**
* @notice Proposed a change of the operator of the contract.
* @dev Can only be called by the current operator.
* @param operator_ The address of the new operator.
*/
function proposeOperatorship(address operator_) external;
/**
* @notice Accept a proposed change of operatorship.
* @dev Can only be called by the proposed operator.
* @param fromOperator The previous operator of the contract.
*/
function acceptOperatorship(address fromOperator) external;
/**
* @notice Query if an address is a operator.
* @param addr The address to query for.
* @return bool Boolean value representing whether or not the address is an operator.
*/
function isOperator(address addr) external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ITokenHandler Interface
* @notice This interface is responsible for handling tokens before initiating an interchain token transfer, or after receiving one.
*/
interface ITokenHandler {
error UnsupportedTokenManagerType(uint256 tokenManagerType);
/**
* @notice This function gives token to a specified address from the token manager.
* @param tokenManagerType The token manager type.
* @param tokenAddress The address of the token to give.
* @param tokenManager The address of the token manager.
* @param to The address to give tokens to.
* @param amount The amount of tokens to give.
* @return uint256 The amount of token actually given, which could be different for certain token type.
*/
function giveToken(
uint256 tokenManagerType,
address tokenAddress,
address tokenManager,
address to,
uint256 amount
) external payable returns (uint256);
/**
* @notice This function takes token from a specified address to the token manager.
* @param tokenManagerType The token manager type.
* @param tokenAddress The address of the token to give.
* @param tokenManager The address of the token manager.
* @param from The address to take tokens from.
* @param amount The amount of token to take.
* @return uint256 The amount of token actually taken, which could be different for certain token type.
*/
function takeToken(
uint256 tokenManagerType,
address tokenAddress,
address tokenManager,
address from,
uint256 amount
) external payable returns (uint256);
/**
* @notice This function transfers token from and to a specified address.
* @param tokenManagerType The token manager type.
* @param tokenAddress the address of the token to give.
* @param from The address to transfer tokens from.
* @param to The address to transfer tokens to.
* @param amount The amount of token to transfer.
* @return uint256 The amount of token actually transferred, which could be different for certain token type.
*/
function transferTokenFrom(
uint256 tokenManagerType,
address tokenAddress,
address from,
address to,
uint256 amount
) external payable returns (uint256);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IImplementation } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IImplementation.sol';
import { IBaseTokenManager } from './IBaseTokenManager.sol';
import { IOperator } from './IOperator.sol';
import { IFlowLimit } from './IFlowLimit.sol';
/**
* @title ITokenManager Interface
* @notice This contract is responsible for managing tokens, such as setting locking token balances, or setting flow limits, for interchain transfers.
*/
interface ITokenManager is IBaseTokenManager, IOperator, IFlowLimit, IImplementation {
error TokenLinkerZeroAddress();
error NotService(address caller);
error TakeTokenFailed();
error GiveTokenFailed();
error NotToken(address caller);
error ZeroAddress();
error AlreadyFlowLimiter(address flowLimiter);
error NotFlowLimiter(address flowLimiter);
error NotSupported();
/**
* @notice Returns implementation type of this token manager.
* @return uint256 The implementation type of this token manager.
*/
function implementationType() external view returns (uint256);
function addFlowIn(uint256 amount) external;
function addFlowOut(uint256 amount) external;
/**
* @notice This function adds a flow limiter for this TokenManager.
* @dev Can only be called by the operator.
* @param flowLimiter the address of the new flow limiter.
*/
function addFlowLimiter(address flowLimiter) external;
/**
* @notice This function removes a flow limiter for this TokenManager.
* @dev Can only be called by the operator.
* @param flowLimiter the address of an existing flow limiter.
*/
function removeFlowLimiter(address flowLimiter) external;
/**
* @notice Query if an address is a flow limiter.
* @param addr The address to query for.
* @return bool Boolean value representing whether or not the address is a flow limiter.
*/
function isFlowLimiter(address addr) external view returns (bool);
/**
* @notice This function sets the flow limit for this TokenManager.
* @dev Can only be called by the flow limiters.
* @param flowLimit_ The maximum difference between the tokens flowing in and/or out at any given interval of time (6h).
*/
function setFlowLimit(uint256 flowLimit_) external;
/**
* @notice A function to renew approval to the service if we need to.
*/
function approveService() external;
/**
* @notice Getter function for the parameters of a lock/unlock TokenManager.
* @dev This function will be mainly used by frontends.
* @param operator_ The operator of the TokenManager.
* @param tokenAddress_ The token to be managed.
* @return params_ The resulting params to be passed to custom TokenManager deployments.
*/
function params(bytes calldata operator_, address tokenAddress_) external pure returns (bytes memory params_);
/**
* @notice External function to allow the service to mint tokens through the tokenManager
* @dev This function should revert if called by anyone but the service.
* @param tokenAddress_ The address of the token, since its cheaper to pass it in instead of reading it as the token manager.
* @param to The recipient.
* @param amount The amount to mint.
*/
function mintToken(address tokenAddress_, address to, uint256 amount) external;
/**
* @notice External function to allow the service to burn tokens through the tokenManager
* @dev This function should revert if called by anyone but the service.
* @param tokenAddress_ The address of the token, since its cheaper to pass it in instead of reading it as the token manager.
* @param from The address to burn the token from.
* @param amount The amount to burn.
*/
function burnToken(address tokenAddress_, address from, uint256 amount) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ITokenManagerDeployer Interface
* @notice This interface is used to deploy new instances of the TokenManagerProxy contract.
*/
interface ITokenManagerDeployer {
error AddressZero();
error TokenManagerDeploymentFailed();
/**
* @notice Deploys a new instance of the TokenManagerProxy contract.
* @param tokenId The token ID.
* @param implementationType Token manager implementation type.
* @param params Additional parameters used in the setup of the token manager.
* @return tokenManager Address of the deployed tokenManager.
*/
function deployTokenManager(
bytes32 tokenId,
uint256 implementationType,
bytes calldata params
) external payable returns (address tokenManager);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ITokenManagerImplementation Interface
* @notice Interface for returning the token manager implementation type.
*/
interface ITokenManagerImplementation {
/**
* @notice Returns the implementation address for a given token manager type.
* @param tokenManagerType The type of token manager.
* @return tokenManagerAddress_ The address of the token manager implementation.
*/
function tokenManagerImplementation(uint256 tokenManagerType) external view returns (address tokenManagerAddress_);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IProxy } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IProxy.sol';
/**
* @title ITokenManagerProxy Interface
* @notice This interface is for a proxy for token manager contracts.
*/
interface ITokenManagerProxy is IProxy {
error ZeroAddress();
/**
* @notice Returns implementation type of this token manager.
* @return uint256 The implementation type of this token manager.
*/
function implementationType() external view returns (uint256);
/**
* @notice Returns the interchain token ID of the token manager.
* @return bytes32 The interchain token ID of the token manager.
*/
function interchainTokenId() external view returns (bytes32);
/**
* @notice Returns token address that this token manager manages.
* @return address The token address.
*/
function tokenAddress() external view returns (address);
/**
* @notice Returns implementation type and token address.
* @return uint256 The implementation type.
* @return address The token address.
*/
function getImplementationTypeAndTokenAddress() external view returns (uint256, address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ITokenManagerType Interface
* @notice A simple interface that defines all the token manager types.
*/
interface ITokenManagerType {
enum TokenManagerType {
NATIVE_INTERCHAIN_TOKEN, // This type is reserved for interchain tokens deployed by ITS, and can't be used by custom token managers.
MINT_BURN_FROM, // The token will be minted/burned on transfers. The token needs to give mint permission to the token manager, but burning happens via an approval.
LOCK_UNLOCK, // The token will be locked/unlocked at the token manager.
LOCK_UNLOCK_FEE, // The token will be locked/unlocked at the token manager, which will account for any fee-on-transfer behaviour.
MINT_BURN // The token will be minted/burned on transfers. The token needs to give mint and burn permission to the token manager.
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ITransmitInterchainToken Interface
* @notice Interface for transmiting interchain tokens via the interchain token service
*/
interface ITransmitInterchainToken {
/**
* @notice Transmit an interchain transfer for the given tokenId.
* @dev Only callable by a token registered under a tokenId.
* @param tokenId The tokenId of the token (which must be the msg.sender).
* @param sourceAddress The address where the token is coming from.
* @param destinationChain The name of the chain to send tokens to.
* @param destinationAddress The destinationAddress for the interchainTransfer.
* @param amount The amount of token to give.
* @param metadata Optional metadata for the call for additional effects (such as calling a destination contract).
*/
function transmitInterchainTransfer(
bytes32 tokenId,
address sourceAddress,
string calldata destinationChain,
bytes memory destinationAddress,
uint256 amount,
bytes calldata metadata
) external payable;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { RolesBase } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/utils/RolesBase.sol';
import { IOperator } from '../interfaces/IOperator.sol';
import { RolesConstants } from './RolesConstants.sol';
/**
* @title Operator Contract
* @notice A contract module which provides a basic access control mechanism, where
* there is an account (a operator) that can be granted exclusive access to
* specific functions.
* @dev This module is used through inheritance.
*/
contract Operator is IOperator, RolesBase, RolesConstants {
/**
* @notice Internal function that stores the new operator address in the correct storage slot
* @param operator The address of the new operator
*/
function _addOperator(address operator) internal {
_addRole(operator, uint8(Roles.OPERATOR));
}
/**
* @notice Change the operator of the contract.
* @dev Can only be called by the current operator.
* @param operator The address of the new operator.
*/
function transferOperatorship(address operator) external onlyRole(uint8(Roles.OPERATOR)) {
_transferRole(msg.sender, operator, uint8(Roles.OPERATOR));
}
/**
* @notice Propose a change of the operator of the contract.
* @dev Can only be called by the current operator.
* @param operator The address of the new operator.
*/
function proposeOperatorship(address operator) external onlyRole(uint8(Roles.OPERATOR)) {
_proposeRole(msg.sender, operator, uint8(Roles.OPERATOR));
}
/**
* @notice Accept a proposed change of operatorship.
* @dev Can only be called by the proposed operator.
* @param fromOperator The previous operator of the contract.
*/
function acceptOperatorship(address fromOperator) external {
_acceptRole(fromOperator, msg.sender, uint8(Roles.OPERATOR));
}
/**
* @notice Query if an address is a operator.
* @param addr The address to query for.
* @return bool Boolean value representing whether or not the address is an operator.
*/
function isOperator(address addr) external view returns (bool) {
return hasRole(addr, uint8(Roles.OPERATOR));
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title RolesConstants
* @notice This contract contains enum values representing different contract roles.
*/
contract RolesConstants {
enum Roles {
MINTER,
OPERATOR,
FLOW_LIMITER
}
}{
"evmVersion": "london",
"optimizer": {
"enabled": true,
"runs": 1000,
"details": {
"peephole": true,
"inliner": true,
"jumpdestRemover": true,
"orderLiterals": true,
"deduplicate": true,
"cse": true,
"constantOptimizer": true,
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Creation Code
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0084156157ef5750858301515b600019600386901b1c1916600185901b178555612406565b600085815260208120601f198616915b8281101561583657888601518255948401946001909101908401615817565b50858210156158545787850151600019600388901b60f8161c191681555b5050505050600190811b0190555056feee35723ac350a69d2a92d3703f17439cbaadf2f093a21ba5bf5f1a53eb2a14d8a2646970667358221220dc8540c7b8e2a681cfd9d2e77116365c3c98a566393ebb31308862b395663e1364736f6c63430008150033
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : tokenManagerDeployer_ (address): 0x121b0e54Cd7ad2BBCb4c4C9275697978EBaF3653
Arg [1] : interchainTokenDeployer_ (address): 0x58667c5f134420Bf6904C7dD01fDDcB4Fea3a760
Arg [2] : gateway_ (address): 0x4F4495243837681061C4743b74B3eEdf548D56A5
Arg [3] : gasService_ (address): 0x2d5d7d31F671F86C782533cc367F14109a082712
Arg [4] : interchainTokenFactory_ (address): 0x83a93500d23Fbc3e82B410aD07A6a9F7A0670D66
Arg [5] : chainName_ (string): Moonbeam
Arg [6] : tokenManagerImplementation_ (address): 0x81a0545091864617E7037171FdfcBbdCFE3aeb23
Arg [7] : tokenHandler_ (address): 0x07715674F74c560200c7C95430673180812fCE73
-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 000000000000000000000000121b0e54cd7ad2bbcb4c4c9275697978ebaf3653
Arg [1] : 00000000000000000000000058667c5f134420bf6904c7dd01fddcb4fea3a760
Arg [2] : 0000000000000000000000004f4495243837681061c4743b74b3eedf548d56a5
Arg [3] : 0000000000000000000000002d5d7d31f671f86c782533cc367f14109a082712
Arg [4] : 00000000000000000000000083a93500d23fbc3e82b410ad07a6a9f7a0670d66
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [6] : 00000000000000000000000081a0545091864617e7037171fdfcbbdcfe3aeb23
Arg [7] : 00000000000000000000000007715674f74c560200c7c95430673180812fce73
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [9] : 4d6f6f6e6265616d000000000000000000000000000000000000000000000000
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Multichain Portfolio | 34 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.