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ERC-20
Stablecoin
Overview
Max Total Supply
16,872,923.4 AUSD
Holders
103 (0.00%)
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 6 Decimals)
Balance
999.581329 AUSDValue
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
AgoraDollarErc1967Proxy
Compiler Version
v0.8.21+commit.d9974bed
Optimization Enabled:
Yes with 100000000 runs
Other Settings:
shanghai EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ===================== AgoraDollarErc1967Proxy ====================== // ==================================================================== import { Proxy } from "@openzeppelin/contracts/proxy/Proxy.sol"; import { Address } from "@openzeppelin/contracts/utils/Address.sol"; import { SafeCastLib } from "solady/src/utils/SafeCastLib.sol"; import { Eip3009, Eip712 } from "../Eip3009.sol"; import { AgoraProxyAdmin } from "./AgoraProxyAdmin.sol"; import { StorageLib } from "./StorageLib.sol"; import { ITransparentUpgradeableProxy } from "../interfaces/ITransparentUpgradeableProxy.sol"; /// @notice The constructor params for the AgoraDollarErc1967Proxy contract /// @dev Allows for an experience closer to named parameters in constructor calls /// @param proxyAdminOwnerAddress The address of the proxy admin owner /// @param eip712Name The name of the Eip712 domain /// @param eip712Version The version of the Eip712 domain struct ConstructorParams { address proxyAdminOwnerAddress; string eip712Name; string eip712Version; } /// @title AgoraDollarErc1967Proxy /// @notice The AgoraDollarErc1967Proxy contract is a proxy contract that delegatecalls to an implementation contract /// @dev The AgoraDollarErc1967Proxy contract implements some additional functionality directly for gas savings /// @author Agora contract AgoraDollarErc1967Proxy is Eip3009, Proxy { using SafeCastLib for uint256; using StorageLib for uint256; address private immutable PROXY_ADMIN_ADDRESS; /// @notice The AgoraDollarErc1967Proxy constructor /// @param _params The constructor params for the AgoraDollarErc1967Proxy contract constructor( ConstructorParams memory _params ) payable Eip712(_params.eip712Name, _params.eip712Version, address(this)) { // Effects: Set the proxy admin address in both bytecode and storage // Stored directly in bytecode for gas efficiency PROXY_ADMIN_ADDRESS = address(new AgoraProxyAdmin({ _initialOwner: _params.proxyAdminOwnerAddress })); // Stored again in storage to comply with Erc1967 standard StorageLib.getPointerToAgoraDollarErc1967ProxyAdminStorage().proxyAdminAddress = PROXY_ADMIN_ADDRESS; // Emit event emit AdminChanged({ previousAdmin: address(0), newAdmin: PROXY_ADMIN_ADDRESS }); } fallback() external payable override { _fallback(); } //============================================================================== // Proxy Functions //============================================================================== function _implementation() internal view override returns (address _implementationAddress) { _implementationAddress = StorageLib.sloadImplementationSlotDataAsUint256().implementation(); } /// @notice The ```_fallback``` function is an internal function which allows the proxy to delegate to the new implementation address /// @dev ProxyAdmin is restricted to only calling upgradeToAndCall function _fallback() internal override { if (msg.sender == PROXY_ADMIN_ADDRESS) { if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) { revert ProxyDeniedAdminAccess(); } else { (address _newImplementation, bytes memory _callData) = abi.decode(msg.data[4:], (address, bytes)); _upgradeToAndCall({ _newImplementation: _newImplementation, _callData: _callData }); } } else { super._fallback(); } } /// @notice The ```_upgradeToAndCall``` function is an internal function which sets the new implementation address and calls the new implementation with the given calldata /// @param _newImplementation The address of the new implementation /// @param _callData The call data using the new implementation as a target function _upgradeToAndCall(address _newImplementation, bytes memory _callData) internal { // Checks: Ensure the new implementation is a contract if (_newImplementation.code.length == 0) revert ImplementationTargetNotAContract(); // Effects: Write the storage value for new implementation StorageLib.AgoraDollarErc1967ProxyContractStorage storage contractData = StorageLib .getPointerToAgoraDollarErc1967ProxyContractStorage(); contractData.implementationAddress = _newImplementation; // Emit event emit Upgraded({ implementation: _newImplementation }); // Execute calldata for new implementation if (_callData.length > 0) Address.functionDelegateCall({ target: _newImplementation, data: _callData }); else if (msg.value > 0) revert AgoraDollarErc1967NonPayable(); } //============================================================================== // Erc20 Overridden Functions //============================================================================== /// @notice The ```transfer``` function transfers tokens which belong to the caller /// @dev This function reverts on failure /// @param _to The address of the recipient /// @param _transferValue The amount of tokens to transfer /// @return A boolean indicating success or failure function transfer(address _to, uint256 _transferValue) external returns (bool) { // Get data from implementation slot as a uint256 uint256 _contractData = StorageLib.sloadImplementationSlotDataAsUint256(); bool _isTransferUpgraded = _contractData.isTransferUpgraded(); if (_isTransferUpgraded) { // new implementation address is stored in the least significant 160 bits of the contract data address _newImplementation = address(uint160(_contractData)); _delegate({ implementation: _newImplementation }); } else { // Checks: contract-wide access control if (_contractData.isTransferPaused()) revert StorageLib.TransferPaused(); // Effects: Transfer the tokens _transfer({ _from: msg.sender, _to: _to, _transferValue: _transferValue.toUint248() }); return true; } } /// @notice The ```transferFrom``` function transfers tokens on behalf of an owner /// @dev This function reverts on failure /// @param _from The address of the owner of the tokens to transfer /// @param _to The address of the recipient of the tokens /// @param _transferValue The amount of tokens to transfer /// @return A boolean indicating success or failure function transferFrom(address _from, address _to, uint256 _transferValue) external returns (bool) { uint256 _contractData = StorageLib.sloadImplementationSlotDataAsUint256(); bool _isTransferFromUpgraded = _contractData.isTransferFromUpgraded(); if (_isTransferFromUpgraded) { // new implementation address is stored in the least significant 160 bits of the contract data address _newImplementation = address(uint160(_contractData)); _delegate({ implementation: _newImplementation }); } else { // Reading account data for sender adds gas so we should only do it if set true bool _isMsgSenderFrozenCheckEnabled = _contractData.isMsgSenderFrozenCheckEnabled(); if ( _isMsgSenderFrozenCheckEnabled && StorageLib.getPointerToErc20CoreStorage().accountData[msg.sender].isFrozen ) revert AccountIsFrozen({ frozenAccount: msg.sender }); // Checks: contract-wide access control if (_contractData.isTransferPaused()) revert StorageLib.TransferPaused(); // Effects: Decrease the allowance of the spender _spendAllowance({ _owner: _from, _spender: msg.sender, _value: _transferValue }); // Effects: Transfer the tokens _transfer({ _from: _from, _to: _to, _transferValue: _transferValue.toUint248() }); return true; } } //============================================================================== // Eip-3009 Overridden Functions //============================================================================== /// @notice The ```transferWithAuthorization``` function executes a transfer with a signed authorization according to Eip3009 /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The block.timestamp after which the authorization is valid /// @param _validBefore The block.timestamp before which the authorization is valid /// @param _nonce Unique nonce /// @param _v ECDSA signature parameter v /// @param _r ECDSA signature parameters r /// @param _s ECDSA signature parameters s function transferWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, uint8 _v, bytes32 _r, bytes32 _s ) external { // Packs signature pieces into bytes transferWithAuthorization({ _from: _from, _to: _to, _value: _value, _validAfter: _validAfter, _validBefore: _validBefore, _nonce: _nonce, _signature: abi.encodePacked(_r, _s, _v) }); } /// @notice The ```transferWithAuthorization``` function executes a transfer with a signed authorization according to Eip3009 /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The block.timestamp after which the authorization is valid /// @param _validBefore The block.timestamp before which the authorization is valid /// @param _nonce Unique nonce /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function transferWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, bytes memory _signature ) public { // Get data from implementation slot as a uint256 uint256 _contractData = StorageLib.sloadImplementationSlotDataAsUint256(); bool _isTransferWithAuthorizationUpgraded = _contractData.isTransferWithAuthorizationUpgraded(); if (_isTransferWithAuthorizationUpgraded) { // new implementation address is stored in the least significant 160 bits of the contract data address _newImplementation = address(uint160(_contractData)); _delegate({ implementation: _newImplementation }); } else { // Reading account data for sender adds gas so we should only do it if set true bool _isMsgSenderFrozenCheckEnabled = _contractData.isMsgSenderFrozenCheckEnabled(); if ( _isMsgSenderFrozenCheckEnabled && StorageLib.getPointerToErc20CoreStorage().accountData[msg.sender].isFrozen ) revert AccountIsFrozen({ frozenAccount: msg.sender }); // Checks: contract-wide access control if (_contractData.isTransferPaused()) revert StorageLib.TransferPaused(); if (_contractData.isSignatureVerificationPaused()) revert StorageLib.SignatureVerificationPaused(); // Effects: transfer the tokens _transferWithAuthorization({ _from: _from, _to: _to, _value: _value, _validAfter: _validAfter, _validBefore: _validBefore, _nonce: _nonce, _signature: _signature }); } } /// @notice The ```receiveWithAuthorization``` function receives a transfer with a signed authorization from the payer /// @dev This has an additional check to ensure that the payee's address matches the caller of this function to prevent front-running attacks /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The block.timestamp after which the authorization is valid /// @param _validBefore The block.timestamp before which the authorization is valid /// @param _nonce Unique nonce /// @param _v ECDSA signature parameter v /// @param _r ECDSA signature parameters r /// @param _s ECDSA signature parameters s function receiveWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, uint8 _v, bytes32 _r, bytes32 _s ) external { // Packs signature pieces into bytes receiveWithAuthorization({ _from: _from, _to: _to, _value: _value, _validAfter: _validAfter, _validBefore: _validBefore, _nonce: _nonce, _signature: abi.encodePacked(_r, _s, _v) }); } /// @notice The ```receiveWithAuthorization``` function receives a transfer with a signed authorization from the payer /// @dev This has an additional check to ensure that the payee's address matches the caller of this function to prevent front-running attacks /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The block.timestamp after which the authorization is valid /// @param _validBefore The block.timestamp before which the authorization is valid /// @param _nonce Unique nonce /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function receiveWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, bytes memory _signature ) public { // Get data from implementation slot as a uint256 uint256 _contractData = StorageLib.sloadImplementationSlotDataAsUint256(); bool _isReceiveWithAuthorizationUpgraded = _contractData.isReceiveWithAuthorizationUpgraded(); if (_isReceiveWithAuthorizationUpgraded) { // new implementation address is stored in the least significant 160 bits of the contract data address _newImplementation = address(uint160(_contractData)); _delegate({ implementation: _newImplementation }); } else { // Checks: contract-wide access control if (_contractData.isTransferPaused()) revert StorageLib.TransferPaused(); if (_contractData.isSignatureVerificationPaused()) revert StorageLib.SignatureVerificationPaused(); // Effects: transfer the tokens _receiveWithAuthorization({ _from: _from, _to: _to, _value: _value, _validAfter: _validAfter, _validBefore: _validBefore, _nonce: _nonce, _signature: _signature }); } } //============================================================================== // Events //============================================================================== /// @notice The ```Upgraded``` event is emitted when the implementation is upgraded /// @param implementation The address of the new implementation event Upgraded(address indexed implementation); /// @notice The ```AdminChanged``` event is emitted when the admin account has changed /// @param previousAdmin The address of the previous admin /// @param newAdmin The address of the new admin event AdminChanged(address previousAdmin, address newAdmin); //============================================================================== // Errors //============================================================================== /// @notice The ```AgoraDollarErc1967NonPayable``` error is emitted when trying to send ether to a non-payable contract error AgoraDollarErc1967NonPayable(); /// @notice The ```ProxyDeniedAdminAccess``` error is emitted when the proxy admin tries to call a function that is not upgradeToAndCall error ProxyDeniedAdminAccess(); /// @notice The ```ImplementationTargetNotAContract``` error is emitted when the target of the proxy is not a contract error ImplementationTargetNotAContract(); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol) pragma solidity ^0.8.20; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overridden so it returns the address to which the fallback * function and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _fallback() internal virtual { _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Safe integer casting library that reverts on overflow. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeCastLib.sol) /// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeCast.sol) library SafeCastLib { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ error Overflow(); /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* UNSIGNED INTEGER SAFE CASTING OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ function toUint8(uint256 x) internal pure returns (uint8) { if (x >= 1 << 8) _revertOverflow(); return uint8(x); } function toUint16(uint256 x) internal pure returns (uint16) { if (x >= 1 << 16) _revertOverflow(); return uint16(x); } function toUint24(uint256 x) internal pure returns (uint24) { if (x >= 1 << 24) _revertOverflow(); return uint24(x); } function toUint32(uint256 x) internal pure returns (uint32) { if (x >= 1 << 32) _revertOverflow(); return uint32(x); } function toUint40(uint256 x) internal pure returns (uint40) { if (x >= 1 << 40) _revertOverflow(); return uint40(x); } function toUint48(uint256 x) internal pure returns (uint48) { if (x >= 1 << 48) _revertOverflow(); return uint48(x); } function toUint56(uint256 x) internal pure returns (uint56) { if (x >= 1 << 56) _revertOverflow(); return uint56(x); } function toUint64(uint256 x) internal pure returns (uint64) { if (x >= 1 << 64) _revertOverflow(); return uint64(x); } function toUint72(uint256 x) internal pure returns (uint72) { if (x >= 1 << 72) _revertOverflow(); return uint72(x); } function toUint80(uint256 x) internal pure returns (uint80) { if (x >= 1 << 80) _revertOverflow(); return uint80(x); } function toUint88(uint256 x) internal pure returns (uint88) { if (x >= 1 << 88) _revertOverflow(); return uint88(x); } function toUint96(uint256 x) internal pure returns (uint96) { if (x >= 1 << 96) _revertOverflow(); return uint96(x); } function toUint104(uint256 x) internal pure returns (uint104) { if (x >= 1 << 104) _revertOverflow(); return uint104(x); } function toUint112(uint256 x) internal pure returns (uint112) { if (x >= 1 << 112) _revertOverflow(); return uint112(x); } function toUint120(uint256 x) internal pure returns (uint120) { if (x >= 1 << 120) _revertOverflow(); return uint120(x); } function toUint128(uint256 x) internal pure returns (uint128) { if (x >= 1 << 128) _revertOverflow(); return uint128(x); } function toUint136(uint256 x) internal pure returns (uint136) { if (x >= 1 << 136) _revertOverflow(); return uint136(x); } function toUint144(uint256 x) internal pure returns (uint144) { if (x >= 1 << 144) _revertOverflow(); return uint144(x); } function toUint152(uint256 x) internal pure returns (uint152) { if (x >= 1 << 152) _revertOverflow(); return uint152(x); } function toUint160(uint256 x) internal pure returns (uint160) { if (x >= 1 << 160) _revertOverflow(); return uint160(x); } function toUint168(uint256 x) internal pure returns (uint168) { if (x >= 1 << 168) _revertOverflow(); return uint168(x); } function toUint176(uint256 x) internal pure returns (uint176) { if (x >= 1 << 176) _revertOverflow(); return uint176(x); } function toUint184(uint256 x) internal pure returns (uint184) { if (x >= 1 << 184) _revertOverflow(); return uint184(x); } function toUint192(uint256 x) internal pure returns (uint192) { if (x >= 1 << 192) _revertOverflow(); return uint192(x); } function toUint200(uint256 x) internal pure returns (uint200) { if (x >= 1 << 200) _revertOverflow(); return uint200(x); } function toUint208(uint256 x) internal pure returns (uint208) { if (x >= 1 << 208) _revertOverflow(); return uint208(x); } function toUint216(uint256 x) internal pure returns (uint216) { if (x >= 1 << 216) _revertOverflow(); return uint216(x); } function toUint224(uint256 x) internal pure returns (uint224) { if (x >= 1 << 224) _revertOverflow(); return uint224(x); } function toUint232(uint256 x) internal pure returns (uint232) { if (x >= 1 << 232) _revertOverflow(); return uint232(x); } function toUint240(uint256 x) internal pure returns (uint240) { if (x >= 1 << 240) _revertOverflow(); return uint240(x); } function toUint248(uint256 x) internal pure returns (uint248) { if (x >= 1 << 248) _revertOverflow(); return uint248(x); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* SIGNED INTEGER SAFE CASTING OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ function toInt8(int256 x) internal pure returns (int8) { int8 y = int8(x); if (x != y) _revertOverflow(); return y; } function toInt16(int256 x) internal pure returns (int16) { int16 y = int16(x); if (x != y) _revertOverflow(); return y; } function toInt24(int256 x) internal pure returns (int24) { int24 y = int24(x); if (x != y) _revertOverflow(); return y; } function toInt32(int256 x) internal pure returns (int32) { int32 y = int32(x); if (x != y) _revertOverflow(); return y; } function toInt40(int256 x) internal pure returns (int40) { int40 y = int40(x); if (x != y) _revertOverflow(); return y; } function toInt48(int256 x) internal pure returns (int48) { int48 y = int48(x); if (x != y) _revertOverflow(); return y; } function toInt56(int256 x) internal pure returns (int56) { int56 y = int56(x); if (x != y) _revertOverflow(); return y; } function toInt64(int256 x) internal pure returns (int64) { int64 y = int64(x); if (x != y) _revertOverflow(); return y; } function toInt72(int256 x) internal pure returns (int72) { int72 y = int72(x); if (x != y) _revertOverflow(); return y; } function toInt80(int256 x) internal pure returns (int80) { int80 y = int80(x); if (x != y) _revertOverflow(); return y; } function toInt88(int256 x) internal pure returns (int88) { int88 y = int88(x); if (x != y) _revertOverflow(); return y; } function toInt96(int256 x) internal pure returns (int96) { int96 y = int96(x); if (x != y) _revertOverflow(); return y; } function toInt104(int256 x) internal pure returns (int104) { int104 y = int104(x); if (x != y) _revertOverflow(); return y; } function toInt112(int256 x) internal pure returns (int112) { int112 y = int112(x); if (x != y) _revertOverflow(); return y; } function toInt120(int256 x) internal pure returns (int120) { int120 y = int120(x); if (x != y) _revertOverflow(); return y; } function toInt128(int256 x) internal pure returns (int128) { int128 y = int128(x); if (x != y) _revertOverflow(); return y; } function toInt136(int256 x) internal pure returns (int136) { int136 y = int136(x); if (x != y) _revertOverflow(); return y; } function toInt144(int256 x) internal pure returns (int144) { int144 y = int144(x); if (x != y) _revertOverflow(); return y; } function toInt152(int256 x) internal pure returns (int152) { int152 y = int152(x); if (x != y) _revertOverflow(); return y; } function toInt160(int256 x) internal pure returns (int160) { int160 y = int160(x); if (x != y) _revertOverflow(); return y; } function toInt168(int256 x) internal pure returns (int168) { int168 y = int168(x); if (x != y) _revertOverflow(); return y; } function toInt176(int256 x) internal pure returns (int176) { int176 y = int176(x); if (x != y) _revertOverflow(); return y; } function toInt184(int256 x) internal pure returns (int184) { int184 y = int184(x); if (x != y) _revertOverflow(); return y; } function toInt192(int256 x) internal pure returns (int192) { int192 y = int192(x); if (x != y) _revertOverflow(); return y; } function toInt200(int256 x) internal pure returns (int200) { int200 y = int200(x); if (x != y) _revertOverflow(); return y; } function toInt208(int256 x) internal pure returns (int208) { int208 y = int208(x); if (x != y) _revertOverflow(); return y; } function toInt216(int256 x) internal pure returns (int216) { int216 y = int216(x); if (x != y) _revertOverflow(); return y; } function toInt224(int256 x) internal pure returns (int224) { int224 y = int224(x); if (x != y) _revertOverflow(); return y; } function toInt232(int256 x) internal pure returns (int232) { int232 y = int232(x); if (x != y) _revertOverflow(); return y; } function toInt240(int256 x) internal pure returns (int240) { int240 y = int240(x); if (x != y) _revertOverflow(); return y; } function toInt248(int256 x) internal pure returns (int248) { int248 y = int248(x); if (x != y) _revertOverflow(); return y; } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* OTHER SAFE CASTING OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ function toInt256(uint256 x) internal pure returns (int256) { if (x >= 1 << 255) _revertOverflow(); return int256(x); } function toUint256(int256 x) internal pure returns (uint256) { if (x < 0) _revertOverflow(); return uint256(x); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PRIVATE HELPERS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ function _revertOverflow() private pure { /// @solidity memory-safe-assembly assembly { // Store the function selector of `Overflow()`. mstore(0x00, 0x35278d12) // Revert with (offset, size). revert(0x1c, 0x04) } } }
// SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ============================= Eip3009 ============================== // ==================================================================== import { MessageHashUtils } from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol"; import { SafeCastLib } from "solady/src/utils/SafeCastLib.sol"; import { SignatureCheckerLib } from "solady/src/utils/SignatureCheckerLib.sol"; import { Eip712 } from "./Eip712.sol"; import { Erc20Core } from "./Erc20Core.sol"; import { StorageLib } from "./proxy/StorageLib.sol"; /// @title Eip3009 /// @notice Eip3009 provides internal implementations for gas-abstracted transfers under Eip3009 guidelines /// @author Agora, inspired by Circle's Eip3009 implementation abstract contract Eip3009 is Eip712, Erc20Core { using SafeCastLib for uint256; using StorageLib for uint256; /// @notice keccak256("TransferWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)") bytes32 internal constant TRANSFER_WITH_AUTHORIZATION_TYPEHASH_ = 0x7c7c6cdb67a18743f49ec6fa9b35f50d52ed05cbed4cc592e13b44501c1a2267; /// @notice keccak256("ReceiveWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)") bytes32 internal constant RECEIVE_WITH_AUTHORIZATION_TYPEHASH_ = 0xd099cc98ef71107a616c4f0f941f04c322d8e254fe26b3c6668db87aae413de8; /// @notice keccak256("CancelAuthorization(address authorizer,bytes32 nonce)") bytes32 internal constant CANCEL_AUTHORIZATION_TYPEHASH_ = 0x158b0a9edf7a828aad02f63cd515c68ef2f50ba807396f6d12842833a1597429; //============================================================================== // Internal Procedural Functions //============================================================================== /// @notice The ```_transferWithAuthorization``` function executes a transfer with a signed authorization /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The time after which this is valid (unix time) /// @param _validBefore The time before which this is valid (unix time) /// @param _nonce Unique nonce /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function _transferWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, bytes memory _signature ) internal { // Checks: authorization validity if (block.timestamp <= _validAfter) revert InvalidAuthorization(); if (block.timestamp >= _validBefore) revert ExpiredAuthorization(); _requireUnusedAuthorization({ _authorizer: _from, _nonce: _nonce }); // Checks: valid signature _requireIsValidSignatureNow({ _signer: _from, _dataHash: keccak256( abi.encode(TRANSFER_WITH_AUTHORIZATION_TYPEHASH_, _from, _to, _value, _validAfter, _validBefore, _nonce) ), _signature: _signature }); // Effects: mark authorization as used and transfer _markAuthorizationAsUsed({ _authorizer: _from, _nonce: _nonce }); _transfer({ _from: _from, _to: _to, _transferValue: _value.toUint248() }); } /// @notice The ```_receiveWithAuthorization``` function receives a transfer with a signed authorization from the payer /// @dev This has an additional check to ensure that the payee's address matches the caller of this function to prevent front-running attacks /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _from Payer's address (Authorizer) /// @param _to Payee's address /// @param _value Amount to be transferred /// @param _validAfter The block.timestamp after which the authorization is valid /// @param _validBefore The block.timestamp before which the authorization is valid /// @param _nonce Unique nonce /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function _receiveWithAuthorization( address _from, address _to, uint256 _value, uint256 _validAfter, uint256 _validBefore, bytes32 _nonce, bytes memory _signature ) internal { // Checks: authorization validity if (_to != msg.sender) revert InvalidPayee({ caller: msg.sender, payee: _to }); if (block.timestamp <= _validAfter) revert InvalidAuthorization(); if (block.timestamp >= _validBefore) revert ExpiredAuthorization(); _requireUnusedAuthorization({ _authorizer: _from, _nonce: _nonce }); // Checks: valid signature _requireIsValidSignatureNow({ _signer: _from, _dataHash: keccak256( abi.encode(RECEIVE_WITH_AUTHORIZATION_TYPEHASH_, _from, _to, _value, _validAfter, _validBefore, _nonce) ), _signature: _signature }); // Effects: mark authorization as used and transfer _markAuthorizationAsUsed({ _authorizer: _from, _nonce: _nonce }); _transfer({ _from: _from, _to: _to, _transferValue: _value.toUint248() }); } /// @notice The ```_cancelAuthorization``` function cancels an authorization /// @dev EOA wallet signatures should be packed in the order of r, s, v /// @param _authorizer Authorizer's address /// @param _nonce Nonce of the authorization /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function _cancelAuthorization(address _authorizer, bytes32 _nonce, bytes memory _signature) internal { _requireUnusedAuthorization({ _authorizer: _authorizer, _nonce: _nonce }); _requireIsValidSignatureNow({ _signer: _authorizer, _dataHash: keccak256(abi.encode(CANCEL_AUTHORIZATION_TYPEHASH_, _authorizer, _nonce)), _signature: _signature }); StorageLib.getPointerToEip3009Storage().isAuthorizationUsed[_authorizer][_nonce] = true; emit AuthorizationCanceled({ authorizer: _authorizer, nonce: _nonce }); } //============================================================================== // Internal Checks Functions //============================================================================== /// @notice The ```_requireIsValidSignatureNow``` function validates that signature against input data struct /// @param _signer Signer's address /// @param _dataHash Hash of encoded data struct /// @param _signature Signature byte array produced by an EOA wallet or a contract wallet function _requireIsValidSignatureNow(address _signer, bytes32 _dataHash, bytes memory _signature) private view { if ( !SignatureCheckerLib.isValidSignatureNow({ signer: _signer, hash: MessageHashUtils.toTypedDataHash({ domainSeparator: _domainSeparatorV4(), structHash: _dataHash }), signature: _signature }) ) revert InvalidSignature(); } /// @notice The ```_requireUnusedAuthorization``` checks that an authorization nonce is unused /// @param _authorizer Authorizer's address /// @param _nonce Nonce of the authorization function _requireUnusedAuthorization(address _authorizer, bytes32 _nonce) private view { if (StorageLib.getPointerToEip3009Storage().isAuthorizationUsed[_authorizer][_nonce]) revert UsedOrCanceledAuthorization(); } //============================================================================== // Internal Effects Functions //============================================================================== /// @notice The ```_markAuthorizationAsUsed``` function marks an authorization nonce as used /// @param _authorizer Authorizer's address /// @param _nonce Nonce of the authorization function _markAuthorizationAsUsed(address _authorizer, bytes32 _nonce) private { StorageLib.getPointerToEip3009Storage().isAuthorizationUsed[_authorizer][_nonce] = true; emit AuthorizationUsed({ authorizer: _authorizer, nonce: _nonce }); } //============================================================================== // Events //============================================================================== /// @notice ```AuthorizationUsed``` event is emitted when an authorization is used /// @param authorizer Authorizer's address /// @param nonce Nonce of the authorization event AuthorizationUsed(address indexed authorizer, bytes32 indexed nonce); /// @notice ```AuthorizationCanceled``` event is emitted when an authorization is canceled /// @param authorizer Authorizer's address /// @param nonce Nonce of the authorization event AuthorizationCanceled(address indexed authorizer, bytes32 indexed nonce); //============================================================================== // Errors //============================================================================== /// @notice The ```InvalidPayee``` error is emitted when the payee does not match sender in receiveWithAuthorization /// @param caller The caller of the function /// @param payee The expected payee in the function error InvalidPayee(address caller, address payee); /// @notice The ```InvalidAuthorization``` error is emitted when the authorization is invalid because its too early error InvalidAuthorization(); /// @notice The ```ExpiredAuthorization``` error is emitted when the authorization is expired error ExpiredAuthorization(); /// @notice The ```InvalidSignature``` error is emitted when the signature is invalid error InvalidSignature(); /// @notice The ```UsedOrCanceledAuthorization``` error is emitted when the authorization nonce is already used or canceled error UsedOrCanceledAuthorization(); }
// SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ======================== AgoraProxyAdmin =========================== // ==================================================================== import { Ownable, Ownable2Step } from "@openzeppelin/contracts/access/Ownable2Step.sol"; import { ProxyAdmin } from "@openzeppelin/contracts/proxy/transparent/ProxyAdmin.sol"; /// @title AgoraProxyAdmin /// @notice A proxy admin contract that extends the OpenZeppelin ProxyAdmin contract and adds a two-step ownership transfer mechanism /// @author Agora contract AgoraProxyAdmin is ProxyAdmin, Ownable2Step { /// @notice Initializes the contract with the initial owner /// @param _initialOwner The address that will be set as the initial owner of the contract constructor(address _initialOwner) ProxyAdmin(_initialOwner) {} /// @notice Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one /// @dev Can only be called by the current owner /// @param _newOwner The address to which ownership of the contract will be transferred function transferOwnership(address _newOwner) public override(Ownable, Ownable2Step) onlyOwner { // NOTE: Order of inheritance/override is important to ensure we are calling Ownable2Step version of transferOwnership super.transferOwnership({ newOwner: _newOwner }); } /// @notice Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner /// @dev Internal function without access restriction /// @param _newOwner The address to which ownership of the contract will be transferred function _transferOwnership(address _newOwner) internal override(Ownable, Ownable2Step) { // NOTE: Order of inheritance/override is important to ensure we are calling Ownable2Step version of _transferOwnership super._transferOwnership({ newOwner: _newOwner }); } }
// SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ============================ StorageLib ============================ // ==================================================================== /** * This library contains information for accessing unstructured storage following erc1967 * and erc7201 standards. * * The erc1967 storage slots are defined using their own formula/namespace. * These are listed last in the contract. * * The erc7201 namespace is defined as <ContractName>.<Namespace> * The deriveErc7201StorageSlot() function is used to derive the storage slot for a given namespace * and to check that value against the hard-coded bytes32 value for the slot location in testing frameworks * Each inherited contract has its own struct of the form <ContractName>Storage which matches <Namespace> * from above. Each struct is held in a unique namespace and has a unique storage slot. * See: https://eips.ethereum.org/EIPS/eip-7201 for additional information regarding this standard */ /// @title StorageLib /// @dev Implements pure functions for calculating and accessing storage slots according to eip1967 and eip7201 /// @author Agora library StorageLib { /// @notice Global namespace for use in deriving storage slot locations string internal constant GLOBAL_ERC7201_NAMESPACE = "AgoraDollarErc1967Proxy"; // Use this function to check hardcoded bytes32 values against the expected formula function deriveErc7201StorageSlot(string memory _localNamespace) internal pure returns (bytes32) { bytes memory _namespace = abi.encodePacked(GLOBAL_ERC7201_NAMESPACE, ".", _localNamespace); return keccak256(abi.encode(uint256(keccak256(_namespace)) - 1)) & ~bytes32(uint256(0xff)); } //============================================================================== // Eip3009 Storage Items //============================================================================== /// @notice The EIP3009 namespace string internal constant EIP3009_NAMESPACE = "Eip3009Storage"; /// @notice The Eip3009Storage struct /// @param isAuthorizationUsed A mapping of authorizer to nonce to boolean to indicate if the nonce has been used /// @custom:storage-location erc7201:AgoraDollarErc1967Proxy.Eip3009Storage struct Eip3009Storage { mapping(address _authorizer => mapping(bytes32 _nonce => bool _isNonceUsed)) isAuthorizationUsed; } /// @notice The ```EIP3009_STORAGE_SLOT_``` is the storage slot for the Eip3009Storage struct /// @dev keccak256(abi.encode(uint256(keccak256("AgoraDollarErc1967Proxy.Eip3009Storage")) - 1)) & ~bytes32(uint256(0xff)) bytes32 internal constant EIP3009_STORAGE_SLOT_ = 0xbb0a37da742be2e3b68bdb11d195150f4243c03fb37d3cdfa756046082a38600; /// @notice The ```getPointerToEip3009Storage``` function returns a pointer to the Eip3009Storage struct /// @return $ A pointer to the Eip3009Storage struct function getPointerToEip3009Storage() internal pure returns (Eip3009Storage storage $) { /// @solidity memory-safe-assembly assembly { $.slot := EIP3009_STORAGE_SLOT_ } } //============================================================================== // Erc2612 Storage Items //============================================================================== /// @notice The Erc2612 namespace string internal constant ERC2612_NAMESPACE = "Erc2612Storage"; /// @notice The Erc2612Storage struct /// @param nonces A mapping of signer address to uint256 to store the nonce /// @custom:storage-location erc7201:AgoraDollarErc1967Proxy.Erc2612Storage struct Erc2612Storage { mapping(address _signer => uint256 _nonce) nonces; } /// @notice The ```ERC2612_STORAGE_SLOT_``` is the storage slot for the Erc2612Storage struct /// @dev keccak256(abi.encode(uint256(keccak256("AgoraDollarErc1967Proxy.Erc2612Storage")) - 1)) & ~bytes32(uint256(0xff)) bytes32 internal constant ERC2612_STORAGE_SLOT_ = 0x69e87f5b9323740fce20cdf574dacd1d10e756da64a1f2df70fd1ace4c7cc300; /// @notice The ```getPointerToErc2612Storage``` function returns a pointer to the Erc2612Storage struct /// @return $ A pointer to the Erc2612Storage struct function getPointerToErc2612Storage() internal pure returns (Erc2612Storage storage $) { /// @solidity memory-safe-assembly assembly { $.slot := ERC2612_STORAGE_SLOT_ } } //============================================================================== // Erc20Core Storage Items //============================================================================== /// @notice The Erc20Core namespace string internal constant ERC20_CORE_NAMESPACE = "Erc20CoreStorage"; /// @notice The Erc20AccountData struct /// @param isFrozen A boolean to indicate if the account is frozen /// @param balance A uint248 to store the balance of the account struct Erc20AccountData { bool isFrozen; uint248 balance; } /// @notice The Erc20CoreStorage struct /// @param accountData A mapping of address to Erc20AccountData to store account data /// @param accountAllowances A mapping of owner to spender to uint256 to store the allowance /// @param totalSupply A uint256 to store the total supply of tokens /// @custom:storage-location erc7201:AgoraDollarErc1967Proxy.Erc20CoreStorage struct Erc20CoreStorage { /// @dev _account The account whose data we are accessing /// @dev _accountData The account data for the account mapping(address _account => Erc20AccountData _accountData) accountData; /// @dev _owner The owner of the tokens /// @dev _spender The spender of the tokens /// @dev _accountAllowance The allowance of the spender mapping(address _owner => mapping(address _spender => uint256 _accountAllowance)) accountAllowances; /// @dev The total supply of tokens uint256 totalSupply; } /// @notice The ```ERC20_CORE_STORAGE_SLOT_``` is the storage slot for the Erc20CoreStorage struct /// @dev keccak256(abi.encode(uint256(keccak256("AgoraDollarErc1967Proxy.Erc20CoreStorage")) - 1)) & ~bytes32(uint256(0xff)) bytes32 internal constant ERC20_CORE_STORAGE_SLOT_ = 0x455730fed596673e69db1907be2e521374ba893f1a04cc5f5dd931616cd6b700; /// @notice The ```getPointerToErc20CoreStorage``` function returns a pointer to the Erc20CoreStorage struct /// @return $ A pointer to the Erc20CoreStorage struct function getPointerToErc20CoreStorage() internal pure returns (Erc20CoreStorage storage $) { /// @solidity memory-safe-assembly assembly { $.slot := ERC20_CORE_STORAGE_SLOT_ } } //============================================================================== // AgoraDollarAccessControl Storage Items //============================================================================== /// @notice The AgoraDollarAccessControl namespace string internal constant AGORA_DOLLAR_ACCESS_CONTROL_NAMESPACE = "AgoraDollarAccessControlStorage"; /// @notice The RoleData struct /// @param pendingRoleAddress The address of the nominated (pending) role /// @param currentRoleAddress The address of the current role struct AgoraDollarAccessControlRoleData { address pendingRoleAddress; address currentRoleAddress; } /// @notice The AgoraDollarAccessControlStorage struct /// @param roleData A mapping of role identifier to AgoraDollarAccessControlRoleData to store role data /// @custom:storage-location erc7201:AgoraDollarErc1967Proxy.AgoraDollarAccessControlStorage struct AgoraDollarAccessControlStorage { mapping(bytes32 _role => AgoraDollarAccessControlRoleData _roleData) roleData; } /// @notice The ```AGORA_DOLLAR_ACCESS_CONTROL_STORAGE_SLOT_``` is the storage slot for the AgoraDollarAccessControlStorage struct /// @dev keccak256(abi.encode(uint256(keccak256("AgoraDollarErc1967Proxy.AgoraDollarAccessControlStorage")) - 1)) & ~bytes32(uint256(0xff)) bytes32 internal constant AGORA_DOLLAR_ACCESS_CONTROL_STORAGE_SLOT_ = 0x9d28e63f6379c0b2127b14120db65179caba9597ddafa73863de41a4ba1fe700; /// @notice The ```getPointerToAgoraDollarAccessControlStorage``` function returns a pointer to the AgoraDollarAccessControlStorage struct /// @return $ A pointer to the AgoraDollarAccessControlStorage struct function getPointerToAgoraDollarAccessControlStorage() internal pure returns (AgoraDollarAccessControlStorage storage $) { /// @solidity memory-safe-assembly assembly { $.slot := AGORA_DOLLAR_ACCESS_CONTROL_STORAGE_SLOT_ } } //============================================================================== // AgoraDollarErc1967 Admin Slot Items //============================================================================== /// @notice The AgoraDollarErc1967ProxyAdminStorage struct /// @param proxyAdminAddress The address of the proxy admin contract /// @custom:storage-location erc1967:eip1967.proxy.admin struct AgoraDollarErc1967ProxyAdminStorage { address proxyAdminAddress; } /// @notice The ```AGORA_DOLLAR_ERC1967_PROXY_ADMIN_STORAGE_SLOT_``` is the storage slot for the AgoraDollarErc1967ProxyAdminStorage struct /// @dev NOTE: deviates from erc7201 standard because erc1967 defines its own storage slot algorithm /// @dev bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1) bytes32 internal constant AGORA_DOLLAR_ERC1967_PROXY_ADMIN_STORAGE_SLOT_ = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /// @notice The ```getPointerToAgoraDollarErc1967ProxyAdminStorage``` function returns a pointer to the AgoraDollarErc1967ProxyAdminStorage struct /// @return adminSlot A pointer to the AgoraDollarErc1967ProxyAdminStorage struct function getPointerToAgoraDollarErc1967ProxyAdminStorage() internal pure returns (AgoraDollarErc1967ProxyAdminStorage storage adminSlot) { /// @solidity memory-safe-assembly assembly { adminSlot.slot := AGORA_DOLLAR_ERC1967_PROXY_ADMIN_STORAGE_SLOT_ } } //============================================================================== // AgoraDollarErc1967Proxy Implementation Slot Items //============================================================================== /// @notice The AgoraDollarErc1967ProxyContractStorage struct /// @param implementationAddress The address of the implementation contract /// @param placeholder A placeholder for bits to be used as bitmask items /// @custom:storage-location erc1967:eip1967.proxy.implementation struct AgoraDollarErc1967ProxyContractStorage { address implementationAddress; // least significant bits first uint96 placeholder; // Placeholder for bitmask items defined below } /// @notice The ```AGORA_DOLLAR_ERC1967_PROXY_CONTRACT_STORAGE_SLOT_``` is the storage slot for the AgoraDollarErc1967ProxyContractStorage struct /// @dev bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1) bytes32 internal constant AGORA_DOLLAR_ERC1967_PROXY_CONTRACT_STORAGE_SLOT_ = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /// @notice The ```getPointerToAgoraDollarErc1967ProxyContractStorage``` function returns a pointer to the storage slot for the implementation address /// @return contractData A pointer to the data in the storage slot for the implementation address and other contract data function getPointerToAgoraDollarErc1967ProxyContractStorage() internal pure returns (AgoraDollarErc1967ProxyContractStorage storage contractData) { /// @solidity memory-safe-assembly assembly { contractData.slot := AGORA_DOLLAR_ERC1967_PROXY_CONTRACT_STORAGE_SLOT_ } } /// @notice The ```sloadImplementationSlotDataAsUint256``` function returns the data at the implementation slot as a uint256 /// @dev Named this way to draw attention to the sload call /// @return _contractData The data at the implementation slot as a uint256 function sloadImplementationSlotDataAsUint256() internal view returns (uint256 _contractData) { /// @solidity memory-safe-assembly assembly { _contractData := sload(AGORA_DOLLAR_ERC1967_PROXY_CONTRACT_STORAGE_SLOT_) } } /// @notice The ```sstoreImplementationSlotDataAsUint256``` function stores the data at the implementation slot /// @dev Named this way to draw attention to the sstore call /// @param _contractData The data to store at the implementation slot, given as a uint256 function sstoreImplementationSlotDataAsUint256(uint256 _contractData) internal { /// @solidity memory-safe-assembly assembly { sstore(AGORA_DOLLAR_ERC1967_PROXY_CONTRACT_STORAGE_SLOT_, _contractData) } } // Contract Access Control masks uint256 internal constant IS_MSG_SENDER_FROZEN_CHECK_ENABLED_BIT_POSITION_ = 1 << (255 - 95); uint256 internal constant IS_MINT_PAUSED_BIT_POSITION_ = 1 << (255 - 94); uint256 internal constant IS_BURN_FROM_PAUSED_BIT_POSITION_ = 1 << (255 - 93); uint256 internal constant IS_FREEZING_PAUSED_BIT_POSITION_ = 1 << (255 - 92); uint256 internal constant IS_TRANSFER_PAUSED_BIT_POSITION_ = 1 << (255 - 91); uint256 internal constant IS_SIGNATURE_VERIFICATION_PAUSED_BIT_POSITION_ = 1 << (255 - 90); // internal function upgrade masks // Erc20 uint256 internal constant IS_TRANSFER_UPGRADED_BIT_POSITION_ = 1 << (255 - 89); uint256 internal constant IS_TRANSFER_FROM_UPGRADED_BIT_POSITION_ = 1 << (255 - 88); // Eip 3009 uint256 internal constant IS_TRANSFER_WITH_AUTHORIZATION_UPGRADED_BIT_POSITION_ = 1 << (255 - 87); uint256 internal constant IS_RECEIVE_WITH_AUTHORIZATION_UPGRADED_BIT_POSITION_ = 1 << (255 - 86); //============================================================================== // Bitmask Functions //============================================================================== // These function use a bitmask to check if a specific bit is set in the contract data function isMsgSenderFrozenCheckEnabled(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_MSG_SENDER_FROZEN_CHECK_ENABLED_BIT_POSITION_ != 0; } function isMintPaused(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_MINT_PAUSED_BIT_POSITION_ != 0; } function isBurnFromPaused(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_BURN_FROM_PAUSED_BIT_POSITION_ != 0; } function isFreezingPaused(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_FREEZING_PAUSED_BIT_POSITION_ != 0; } function isTransferPaused(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_TRANSFER_PAUSED_BIT_POSITION_ != 0; } function isSignatureVerificationPaused(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_SIGNATURE_VERIFICATION_PAUSED_BIT_POSITION_ != 0; } function isTransferUpgraded(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_TRANSFER_UPGRADED_BIT_POSITION_ != 0; } function isTransferFromUpgraded(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_TRANSFER_FROM_UPGRADED_BIT_POSITION_ != 0; } function isTransferWithAuthorizationUpgraded(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_TRANSFER_WITH_AUTHORIZATION_UPGRADED_BIT_POSITION_ != 0; } function isReceiveWithAuthorizationUpgraded(uint256 _contractData) internal pure returns (bool) { return _contractData & IS_RECEIVE_WITH_AUTHORIZATION_UPGRADED_BIT_POSITION_ != 0; } function implementation(uint256 _contractData) internal pure returns (address) { // return least significant 160 bits and cast to an address return address(uint160(_contractData)); } function setBitWithMask( uint256 _original, uint256 _bitToSet, bool _setBitToOne ) internal pure returns (uint256 _new) { // Sets the specified bit to 1 or 0 _new = _setBitToOne ? _original | _bitToSet : _original & ~_bitToSet; } //============================================================================== // Errors //============================================================================== /// @notice The ```TransferPaused``` error is emitted when transfers are paused during an attempted transfer error TransferPaused(); /// @notice The ```SignatureVerificationPaused``` error is emitted when signature verification is paused during an attempted transfer error SignatureVerificationPaused(); /// @notice The ```MintPaused``` error is emitted when minting is paused during an attempted mint error MintPaused(); /// @notice The ```BurnFromPaused``` error is emitted when burning is paused during an attempted burn error BurnFromPaused(); /// @notice The ```FreezingPaused``` error is emitted when freezing is paused during an attempted call to freeze() or unfreeze() error FreezingPaused(); }
// SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.0; interface ITransparentUpgradeableProxy { function upgradeToAndCall(address, bytes calldata) external payable; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol) pragma solidity ^0.8.20; import {Strings} from "../Strings.sol"; /** * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing. * * The library provides methods for generating a hash of a message that conforms to the * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712] * specifications. */ library MessageHashUtils { /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing a bytes32 `messageHash` with * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with * keccak256, although any bytes32 value can be safely used because the final digest will * be re-hashed. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20) } } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing an arbitrary `message` with * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) { return keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message)); } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x00` (data with intended validator). * * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended * `validator` address. Then hashing the result. * * See {ECDSA-recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked(hex"19_00", validator, data)); } /** * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`). * * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with * `\x19\x01` and hashing the result. It corresponds to the hash signed by the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712. * * See {ECDSA-recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, hex"19_01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) digest := keccak256(ptr, 0x42) } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Signature verification helper that supports both ECDSA signatures from EOAs /// and ERC1271 signatures from smart contract wallets like Argent and Gnosis safe. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SignatureCheckerLib.sol) /// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/SignatureChecker.sol) /// /// @dev Note: /// - The signature checking functions use the ecrecover precompile (0x1). /// - The `bytes memory signature` variants use the identity precompile (0x4) /// to copy memory internally. /// - Unlike ECDSA signatures, contract signatures are revocable. /// - As of Solady version 0.0.134, all `bytes signature` variants accept both /// regular 65-byte `(r, s, v)` and EIP-2098 `(r, vs)` short form signatures. /// See: https://eips.ethereum.org/EIPS/eip-2098 /// This is for calldata efficiency on smart accounts prevalent on L2s. /// /// WARNING! Do NOT use signatures as unique identifiers: /// - Use a nonce in the digest to prevent replay attacks on the same contract. /// - Use EIP-712 for the digest to prevent replay attacks across different chains and contracts. /// EIP-712 also enables readable signing of typed data for better user safety. /// This implementation does NOT check if a signature is non-malleable. library SignatureCheckerLib { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* SIGNATURE CHECKING OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns whether `signature` is valid for `signer` and `hash`. /// If `signer` is a smart contract, the signature is validated with ERC1271. /// Otherwise, the signature is validated with `ECDSA.recover`. function isValidSignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { // Clean the upper 96 bits of `signer` in case they are dirty. for { signer := shr(96, shl(96, signer)) } signer {} { let m := mload(0x40) mstore(0x00, hash) mstore(0x40, mload(add(signature, 0x20))) // `r`. if eq(mload(signature), 64) { let vs := mload(add(signature, 0x40)) mstore(0x20, add(shr(255, vs), 27)) // `v`. mstore(0x60, shr(1, shl(1, vs))) // `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } if eq(mload(signature), 65) { mstore(0x20, byte(0, mload(add(signature, 0x60)))) // `v`. mstore(0x60, mload(add(signature, 0x40))) // `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. // Copy the `signature` over. let n := add(0x20, mload(signature)) pop(staticcall(gas(), 4, signature, n, add(m, 0x44), n)) // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. add(returndatasize(), 0x44), // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) break } } } /// @dev Returns whether `signature` is valid for `signer` and `hash`. /// If `signer` is a smart contract, the signature is validated with ERC1271. /// Otherwise, the signature is validated with `ECDSA.recover`. function isValidSignatureNowCalldata(address signer, bytes32 hash, bytes calldata signature) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { // Clean the upper 96 bits of `signer` in case they are dirty. for { signer := shr(96, shl(96, signer)) } signer {} { let m := mload(0x40) mstore(0x00, hash) if eq(signature.length, 64) { let vs := calldataload(add(signature.offset, 0x20)) mstore(0x20, add(shr(255, vs), 27)) // `v`. mstore(0x40, calldataload(signature.offset)) // `r`. mstore(0x60, shr(1, shl(1, vs))) // `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } if eq(signature.length, 65) { mstore(0x20, byte(0, calldataload(add(signature.offset, 0x40)))) // `v`. calldatacopy(0x40, signature.offset, 0x40) // `r`, `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), signature.length) // Copy the `signature` over. calldatacopy(add(m, 0x64), signature.offset, signature.length) // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. add(signature.length, 0x64), // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) break } } } /// @dev Returns whether the signature (`r`, `vs`) is valid for `signer` and `hash`. /// If `signer` is a smart contract, the signature is validated with ERC1271. /// Otherwise, the signature is validated with `ECDSA.recover`. function isValidSignatureNow(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { // Clean the upper 96 bits of `signer` in case they are dirty. for { signer := shr(96, shl(96, signer)) } signer {} { let m := mload(0x40) mstore(0x00, hash) mstore(0x20, add(shr(255, vs), 27)) // `v`. mstore(0x40, r) // `r`. mstore(0x60, shr(1, shl(1, vs))) // `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), 65) // Length of the signature. mstore(add(m, 0x64), r) // `r`. mstore(add(m, 0x84), mload(0x60)) // `s`. mstore8(add(m, 0xa4), mload(0x20)) // `v`. // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. 0xa5, // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } } /// @dev Returns whether the signature (`v`, `r`, `s`) is valid for `signer` and `hash`. /// If `signer` is a smart contract, the signature is validated with ERC1271. /// Otherwise, the signature is validated with `ECDSA.recover`. function isValidSignatureNow(address signer, bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { // Clean the upper 96 bits of `signer` in case they are dirty. for { signer := shr(96, shl(96, signer)) } signer {} { let m := mload(0x40) mstore(0x00, hash) mstore(0x20, and(v, 0xff)) // `v`. mstore(0x40, r) // `r`. mstore(0x60, s) // `s`. let t := staticcall( gas(), // Amount of gas left for the transaction. 1, // Address of `ecrecover`. 0x00, // Start of input. 0x80, // Size of input. 0x01, // Start of output. 0x20 // Size of output. ) // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise. if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) { isValid := 1 mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), 65) // Length of the signature. mstore(add(m, 0x64), r) // `r`. mstore(add(m, 0x84), s) // `s`. mstore8(add(m, 0xa4), v) // `v`. // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. 0xa5, // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) mstore(0x60, 0) // Restore the zero slot. mstore(0x40, m) // Restore the free memory pointer. break } } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ERC1271 OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns whether `signature` is valid for `hash` for an ERC1271 `signer` contract. function isValidERC1271SignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. // Copy the `signature` over. let n := add(0x20, mload(signature)) pop(staticcall(gas(), 4, signature, n, add(m, 0x44), n)) // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. add(returndatasize(), 0x44), // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) } } /// @dev Returns whether `signature` is valid for `hash` for an ERC1271 `signer` contract. function isValidERC1271SignatureNowCalldata( address signer, bytes32 hash, bytes calldata signature ) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), signature.length) // Copy the `signature` over. calldatacopy(add(m, 0x64), signature.offset, signature.length) // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. add(signature.length, 0x64), // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) } } /// @dev Returns whether the signature (`r`, `vs`) is valid for `hash` /// for an ERC1271 `signer` contract. function isValidERC1271SignatureNow(address signer, bytes32 hash, bytes32 r, bytes32 vs) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), 65) // Length of the signature. mstore(add(m, 0x64), r) // `r`. mstore(add(m, 0x84), shr(1, shl(1, vs))) // `s`. mstore8(add(m, 0xa4), add(shr(255, vs), 27)) // `v`. // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. 0xa5, // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) } } /// @dev Returns whether the signature (`v`, `r`, `s`) is valid for `hash` /// for an ERC1271 `signer` contract. function isValidERC1271SignatureNow(address signer, bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal view returns (bool isValid) { /// @solidity memory-safe-assembly assembly { let m := mload(0x40) let f := shl(224, 0x1626ba7e) mstore(m, f) // `bytes4(keccak256("isValidSignature(bytes32,bytes)"))`. mstore(add(m, 0x04), hash) let d := add(m, 0x24) mstore(d, 0x40) // The offset of the `signature` in the calldata. mstore(add(m, 0x44), 65) // Length of the signature. mstore(add(m, 0x64), r) // `r`. mstore(add(m, 0x84), s) // `s`. mstore8(add(m, 0xa4), v) // `v`. // forgefmt: disable-next-item isValid := and( // Whether the returndata is the magic value `0x1626ba7e` (left-aligned). eq(mload(d), f), // Whether the staticcall does not revert. // This must be placed at the end of the `and` clause, // as the arguments are evaluated from right to left. staticcall( gas(), // Remaining gas. signer, // The `signer` address. m, // Offset of calldata in memory. 0xa5, // Length of calldata in memory. d, // Offset of returndata. 0x20 // Length of returndata to write. ) ) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* HASHING OPERATIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns an Ethereum Signed Message, created from a `hash`. /// This produces a hash corresponding to the one signed with the /// [`eth_sign`](https://eth.wiki/json-rpc/API#eth_sign) /// JSON-RPC method as part of EIP-191. function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 result) { /// @solidity memory-safe-assembly assembly { mstore(0x20, hash) // Store into scratch space for keccak256. mstore(0x00, "\x00\x00\x00\x00\x19Ethereum Signed Message:\n32") // 28 bytes. result := keccak256(0x04, 0x3c) // `32 * 2 - (32 - 28) = 60 = 0x3c`. } } /// @dev Returns an Ethereum Signed Message, created from `s`. /// This produces a hash corresponding to the one signed with the /// [`eth_sign`](https://eth.wiki/json-rpc/API#eth_sign) /// JSON-RPC method as part of EIP-191. /// Note: Supports lengths of `s` up to 999999 bytes. function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32 result) { /// @solidity memory-safe-assembly assembly { let sLength := mload(s) let o := 0x20 mstore(o, "\x19Ethereum Signed Message:\n") // 26 bytes, zero-right-padded. mstore(0x00, 0x00) // Convert the `s.length` to ASCII decimal representation: `base10(s.length)`. for { let temp := sLength } 1 {} { o := sub(o, 1) mstore8(o, add(48, mod(temp, 10))) temp := div(temp, 10) if iszero(temp) { break } } let n := sub(0x3a, o) // Header length: `26 + 32 - o`. // Throw an out-of-offset error (consumes all gas) if the header exceeds 32 bytes. returndatacopy(returndatasize(), returndatasize(), gt(n, 0x20)) mstore(s, or(mload(0x00), mload(n))) // Temporarily store the header. result := keccak256(add(s, sub(0x20, n)), add(n, sLength)) mstore(s, sLength) // Restore the length. } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* EMPTY CALLDATA HELPERS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns an empty calldata bytes. function emptySignature() internal pure returns (bytes calldata signature) { /// @solidity memory-safe-assembly assembly { signature.length := 0 } } }
// SPDX-License-Identifier: Apache-2.0 // ***NOTE***: This file has been modified to remove external functions and storage for use in a transparent-ish proxy // ***NOTE***: Modified from https://github.com/OpenZeppelin/openzeppelin-contracts/blob/dbb6104ce834628e473d2173bbc9d47f81a9eec3/contracts/utils/cryptography/EIP712.sol pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ============================= Eip712 =============================== // ==================================================================== import { ShortString, ShortStrings } from "@openzeppelin/contracts/utils/ShortStrings.sol"; import { MessageHashUtils } from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * */ /// @title Eip712 /// @author Agora, modified from OpenZeppelin implementation abstract contract Eip712 { using ShortStrings for *; bytes32 private constant TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"); // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to // invalidate the cached domain separator if the chain id changes. bytes32 private immutable _cachedDomainSeparator; uint256 private immutable _cachedChainId; address private immutable _cachedThis; bytes32 private immutable _hashedName; bytes32 private immutable _hashedVersion; ShortString private immutable _name; ShortString private immutable _version; /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. */ constructor(string memory name, string memory version, address expectedProxyAddress) { _name = name.toShortString(); _version = version.toShortString(); _hashedName = keccak256(bytes(name)); _hashedVersion = keccak256(bytes(version)); _cachedChainId = block.chainid; _cachedDomainSeparator = keccak256( abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, expectedProxyAddress) ); _cachedThis = expectedProxyAddress; } /// @dev Returns the domain separator for the current chain function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _cachedThis && block.chainid == _cachedChainId) return _cachedDomainSeparator; else return _buildDomainSeparator(); } function _buildDomainSeparator() private view returns (bytes32) { return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view returns (bytes32) { return MessageHashUtils.toTypedDataHash({ domainSeparator: _domainSeparatorV4(), structHash: structHash }); } /** * @dev The name parameter for the Eip712 domain. * * NOTE: By default this function reads _name which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _Eip712Name() internal view returns (string memory) { return _name.toString(); } /** * @dev The version parameter for the Eip712 domain. * * NOTE: By default this function reads _version which is an immutable value. * It only reads from storage if necessary (in case the value is too large to fit in a ShortString). */ // solhint-disable-next-line func-name-mixedcase function _Eip712Version() internal view returns (string memory) { return _version.toString(); } }
// SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.21; // ==================================================================== // _ ______ ___ _______ _ // / \ .' ___ | .' `.|_ __ \ / \ // / _ \ / .' \_| / .-. \ | |__) | / _ \ // / ___ \ | | ____ | | | | | __ / / ___ \ // _/ / \ \_\ `.___] |\ `-' /_| | \ \_ _/ / \ \_ // |____| |____|`._____.' `.___.'|____| |___||____| |____| // ==================================================================== // ============================ Erc20Core ============================= // ==================================================================== import { IERC20Errors as IErc20Errors } from "@openzeppelin/contracts/interfaces/draft-IErc6093.sol"; import { SafeCastLib } from "solady/src/utils/SafeCastLib.sol"; import { StorageLib } from "./proxy/StorageLib.sol"; /// @notice The ```Erc20Core``` contract is a base contract for the Erc20 standard /// @title Erc20Core /// @author Agora abstract contract Erc20Core is IErc20Errors { using StorageLib for uint256; using SafeCastLib for uint256; //============================================================================== // Internal Procedural Functions //============================================================================== /// The ```_approve``` function is used to approve a spender to spend a certain amount of tokens on behalf of the caller /// @dev This function reverts on failure /// @param _spender The address of the spender /// @param _value The amount of tokens to approve for spending function _approve(address _owner, address _spender, uint256 _value) internal { StorageLib.getPointerToErc20CoreStorage().accountAllowances[_owner][_spender] = _value; emit Approval({ owner: _owner, spender: _spender, value: _value }); } /// @notice The ```_transfer``` function transfers tokens which belong to the caller /// @dev This function reverts on failure /// @param _to The address of the recipient /// @param _transferValue The amount of tokens to transfer function _transfer(address _from, address _to, uint248 _transferValue) internal { // Checks: Ensure _from address is not frozen StorageLib.Erc20AccountData memory _accountDataFrom = StorageLib.getPointerToErc20CoreStorage().accountData[ _from ]; if (_accountDataFrom.isFrozen) revert AccountIsFrozen({ frozenAccount: _from }); // Checks: Ensure _from has enough balance if (_accountDataFrom.balance < _transferValue) revert ERC20InsufficientBalance({ sender: _from, balance: _accountDataFrom.balance, needed: _transferValue }); // Effects: update balances on the _from account unchecked { // Underflow not possible: _transferValue <= fromBalance asserted above StorageLib.getPointerToErc20CoreStorage().accountData[_from].balance = _accountDataFrom.balance - _transferValue; } // NOTE: typically checks are done before effects, but in this case we need to handle the case where _to == _from and so we want to read the latest values // Checks: Ensure _to address is not frozen StorageLib.Erc20AccountData memory _accountDataTo = StorageLib.getPointerToErc20CoreStorage().accountData[_to]; if (_accountDataTo.isFrozen) revert AccountIsFrozen({ frozenAccount: _to }); // Effects: update balances on the _to account unchecked { // Overflow not possible: _transferValue + toBalance <= (2^248 -1) x 10^-6 [more money than atoms in the galaxy] StorageLib.getPointerToErc20CoreStorage().accountData[_to].balance = _accountDataTo.balance + _transferValue; } emit Transfer({ from: _from, to: _to, value: _transferValue }); } /// @notice The ```_spendAllowance``` function decrements a spenders allowance /// @dev Treats type(uint256).max as infinite allowance and does not update balance /// @param _owner The address of the owner /// @param _spender The address of the spender /// @param _value The amount of allowance to decrement function _spendAllowance(address _owner, address _spender, uint256 _value) internal { uint256 _currentAllowance = StorageLib.getPointerToErc20CoreStorage().accountAllowances[_owner][_spender]; // We treat uint256.max as infinite allowance, so we don't need to read/write storage in that case if (_currentAllowance != type(uint256).max) { if (_currentAllowance < _value) revert ERC20InsufficientAllowance({ spender: _spender, allowance: _currentAllowance, needed: _value }); unchecked { StorageLib.getPointerToErc20CoreStorage().accountAllowances[_owner][_spender] = _currentAllowance - _value; } } } //============================================================================== // Events //============================================================================== /// @notice The ```Transfer``` event is emitted when tokens are transferred from one account to another /// @param from The account that is transferring tokens /// @param to The account that is receiving tokens /// @param value The amount of tokens being transferred event Transfer(address indexed from, address indexed to, uint256 value); /// @notice ```Approval``` emitted when the allowance of a `spender` for an `owner` is set by a call to {approve} /// @param owner The account that is allowing the spender to spend /// @param spender The account that is allowed to spend /// @param value The amount of funds that the spender is allowed to spend event Approval(address indexed owner, address indexed spender, uint256 value); //============================================================================== // Errors //============================================================================== /// @notice ```AccountIsFrozen``` error is emitted when an account is frozen and a transfer is attempted /// @param frozenAccount The account that is frozen error AccountIsFrozen(address frozenAccount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol) pragma solidity ^0.8.20; import {Ownable} from "./Ownable.sol"; /** * @dev Contract module which provides access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is specified at deployment time in the constructor for `Ownable`. This * can later be changed with {transferOwnership} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ abstract contract Ownable2Step is Ownable { address private _pendingOwner; event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() public virtual { address sender = _msgSender(); if (pendingOwner() != sender) { revert OwnableUnauthorizedAccount(sender); } _transferOwnership(sender); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/ProxyAdmin.sol) pragma solidity ^0.8.20; import {ITransparentUpgradeableProxy} from "./TransparentUpgradeableProxy.sol"; import {Ownable} from "../../access/Ownable.sol"; /** * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}. */ contract ProxyAdmin is Ownable { /** * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgrade(address)` * and `upgradeAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called, * while `upgradeAndCall` will invoke the `receive` function if the second argument is the empty byte string. * If the getter returns `"5.0.0"`, only `upgradeAndCall(address,bytes)` is present, and the second argument must * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function * during an upgrade. */ string public constant UPGRADE_INTERFACE_VERSION = "5.0.0"; /** * @dev Sets the initial owner who can perform upgrades. */ constructor(address initialOwner) Ownable(initialOwner) {} /** * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. * See {TransparentUpgradeableProxy-_dispatchUpgradeToAndCall}. * * Requirements: * * - This contract must be the admin of `proxy`. * - If `data` is empty, `msg.value` must be zero. */ function upgradeAndCall( ITransparentUpgradeableProxy proxy, address implementation, bytes memory data ) public payable virtual onlyOwner { proxy.upgradeToAndCall{value: msg.value}(implementation, data); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol) pragma solidity ^0.8.20; import {StorageSlot} from "./StorageSlot.sol"; // | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA | // | length | 0x BB | type ShortString is bytes32; /** * @dev This library provides functions to convert short memory strings * into a `ShortString` type that can be used as an immutable variable. * * Strings of arbitrary length can be optimized using this library if * they are short enough (up to 31 bytes) by packing them with their * length (1 byte) in a single EVM word (32 bytes). Additionally, a * fallback mechanism can be used for every other case. * * Usage example: * * ```solidity * contract Named { * using ShortStrings for *; * * ShortString private immutable _name; * string private _nameFallback; * * constructor(string memory contractName) { * _name = contractName.toShortStringWithFallback(_nameFallback); * } * * function name() external view returns (string memory) { * return _name.toStringWithFallback(_nameFallback); * } * } * ``` */ library ShortStrings { // Used as an identifier for strings longer than 31 bytes. bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF; error StringTooLong(string str); error InvalidShortString(); /** * @dev Encode a string of at most 31 chars into a `ShortString`. * * This will trigger a `StringTooLong` error is the input string is too long. */ function toShortString(string memory str) internal pure returns (ShortString) { bytes memory bstr = bytes(str); if (bstr.length > 31) { revert StringTooLong(str); } return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length)); } /** * @dev Decode a `ShortString` back to a "normal" string. */ function toString(ShortString sstr) internal pure returns (string memory) { uint256 len = byteLength(sstr); // using `new string(len)` would work locally but is not memory safe. string memory str = new string(32); /// @solidity memory-safe-assembly assembly { mstore(str, len) mstore(add(str, 0x20), sstr) } return str; } /** * @dev Return the length of a `ShortString`. */ function byteLength(ShortString sstr) internal pure returns (uint256) { uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF; if (result > 31) { revert InvalidShortString(); } return result; } /** * @dev Encode a string into a `ShortString`, or write it to storage if it is too long. */ function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) { if (bytes(value).length < 32) { return toShortString(value); } else { StorageSlot.getStringSlot(store).value = value; return ShortString.wrap(FALLBACK_SENTINEL); } } /** * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}. */ function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return toString(value); } else { return store; } } /** * @dev Return the length of a string that was encoded to `ShortString` or written to storage using * {setWithFallback}. * * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of * actual characters as the UTF-8 encoding of a single character can span over multiple bytes. */ function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) { if (ShortString.unwrap(value) != FALLBACK_SENTINEL) { return byteLength(value); } else { return bytes(store).length; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens. */ interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender); } /** * @dev Standard ERC721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator); } /** * @dev Standard ERC1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens. */ interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../utils/Context.sol"; /** * @dev 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 initial owner is set to the address provided by the deployer. This can * later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/TransparentUpgradeableProxy.sol) pragma solidity ^0.8.20; import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol"; import {ERC1967Proxy} from "../ERC1967/ERC1967Proxy.sol"; import {IERC1967} from "../../interfaces/IERC1967.sol"; import {ProxyAdmin} from "./ProxyAdmin.sol"; /** * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy} * does not implement this interface directly, and its upgradeability mechanism is implemented by an internal dispatch * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not * include them in the ABI so this interface must be used to interact with it. */ interface ITransparentUpgradeableProxy is IERC1967 { function upgradeToAndCall(address, bytes calldata) external payable; } /** * @dev This contract implements a proxy that is upgradeable through an associated {ProxyAdmin} instance. * * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector * clashing], which can potentially be used in an attack, this contract uses the * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two * things that go hand in hand: * * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if * that call matches the {ITransparentUpgradeableProxy-upgradeToAndCall} function exposed by the proxy itself. * 2. If the admin calls the proxy, it can call the `upgradeToAndCall` function but any other call won't be forwarded to * the implementation. If the admin tries to call a function on the implementation it will fail with an error indicating * the proxy admin cannot fallback to the target implementation. * * These properties mean that the admin account can only be used for upgrading the proxy, so it's best if it's a * dedicated account that is not used for anything else. This will avoid headaches due to sudden errors when trying to * call a function from the proxy implementation. For this reason, the proxy deploys an instance of {ProxyAdmin} and * allows upgrades only if they come through it. You should think of the `ProxyAdmin` instance as the administrative * interface of the proxy, including the ability to change who can trigger upgrades by transferring ownership. * * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not * inherit from that interface, and instead `upgradeToAndCall` is implicitly implemented using a custom dispatch * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the * implementation. * * NOTE: This proxy does not inherit from {Context} deliberately. The {ProxyAdmin} of this contract won't send a * meta-transaction in any way, and any other meta-transaction setup should be made in the implementation contract. * * IMPORTANT: This contract avoids unnecessary storage reads by setting the admin only during construction as an * immutable variable, preventing any changes thereafter. However, the admin slot defined in ERC-1967 can still be * overwritten by the implementation logic pointed to by this proxy. In such cases, the contract may end up in an * undesirable state where the admin slot is different from the actual admin. * * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the * compiler will not check that there are no selector conflicts, due to the note above. A selector clash between any new * function and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This * could render the `upgradeToAndCall` function inaccessible, preventing upgradeability and compromising transparency. */ contract TransparentUpgradeableProxy is ERC1967Proxy { // An immutable address for the admin to avoid unnecessary SLOADs before each call // at the expense of removing the ability to change the admin once it's set. // This is acceptable if the admin is always a ProxyAdmin instance or similar contract // with its own ability to transfer the permissions to another account. address private immutable _admin; /** * @dev The proxy caller is the current admin, and can't fallback to the proxy target. */ error ProxyDeniedAdminAccess(); /** * @dev Initializes an upgradeable proxy managed by an instance of a {ProxyAdmin} with an `initialOwner`, * backed by the implementation at `_logic`, and optionally initialized with `_data` as explained in * {ERC1967Proxy-constructor}. */ constructor(address _logic, address initialOwner, bytes memory _data) payable ERC1967Proxy(_logic, _data) { _admin = address(new ProxyAdmin(initialOwner)); // Set the storage value and emit an event for ERC-1967 compatibility ERC1967Utils.changeAdmin(_proxyAdmin()); } /** * @dev Returns the admin of this proxy. */ function _proxyAdmin() internal virtual returns (address) { return _admin; } /** * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior. */ function _fallback() internal virtual override { if (msg.sender == _proxyAdmin()) { if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) { revert ProxyDeniedAdminAccess(); } else { _dispatchUpgradeToAndCall(); } } else { super._fallback(); } } /** * @dev Upgrade the implementation of the proxy. See {ERC1967Utils-upgradeToAndCall}. * * Requirements: * * - If `data` is empty, `msg.value` must be zero. */ function _dispatchUpgradeToAndCall() private { (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes)); ERC1967Utils.upgradeToAndCall(newImplementation, data); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol) pragma solidity ^0.8.20; import {IBeacon} from "../beacon/IBeacon.sol"; import {Address} from "../../utils/Address.sol"; import {StorageSlot} from "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. */ library ERC1967Utils { // We re-declare ERC-1967 events here because they can't be used directly from IERC1967. // This will be fixed in Solidity 0.8.21. At that point we should remove these events. /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev The `implementation` of the proxy is invalid. */ error ERC1967InvalidImplementation(address implementation); /** * @dev The `admin` of the proxy is invalid. */ error ERC1967InvalidAdmin(address admin); /** * @dev The `beacon` of the proxy is invalid. */ error ERC1967InvalidBeacon(address beacon); /** * @dev An upgrade function sees `msg.value > 0` that may be lost. */ error ERC1967NonPayable(); /** * @dev Returns the current implementation address. */ function getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { if (newImplementation.code.length == 0) { revert ERC1967InvalidImplementation(newImplementation); } StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Performs implementation upgrade with additional setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-Upgraded} event. */ function upgradeToAndCall(address newImplementation, bytes memory data) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); if (data.length > 0) { Address.functionDelegateCall(newImplementation, data); } else { _checkNonPayable(); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` */ function getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { if (newAdmin == address(0)) { revert ERC1967InvalidAdmin(address(0)); } StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {IERC1967-AdminChanged} event. */ function changeAdmin(address newAdmin) internal { emit AdminChanged(getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { if (newBeacon.code.length == 0) { revert ERC1967InvalidBeacon(newBeacon); } StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon; address beaconImplementation = IBeacon(newBeacon).implementation(); if (beaconImplementation.code.length == 0) { revert ERC1967InvalidImplementation(beaconImplementation); } } /** * @dev Change the beacon and trigger a setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-BeaconUpgraded} event. * * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for * efficiency. */ function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } else { _checkNonPayable(); } } /** * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract * if an upgrade doesn't perform an initialization call. */ function _checkNonPayable() private { if (msg.value > 0) { revert ERC1967NonPayable(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Proxy.sol) pragma solidity ^0.8.20; import {Proxy} from "../Proxy.sol"; import {ERC1967Utils} from "./ERC1967Utils.sol"; /** * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an * implementation address that can be changed. This address is stored in storage in the location specified by * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the * implementation behind the proxy. */ contract ERC1967Proxy is Proxy { /** * @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`. * * If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an * encoded function call, and allows initializing the storage of the proxy like a Solidity constructor. * * Requirements: * * - If `data` is empty, `msg.value` must be zero. */ constructor(address implementation, bytes memory _data) payable { ERC1967Utils.upgradeToAndCall(implementation, _data); } /** * @dev Returns the current implementation address. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc` */ function _implementation() internal view virtual override returns (address) { return ERC1967Utils.getImplementation(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol) pragma solidity ^0.8.20; /** * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC. */ interface IERC1967 { /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.20; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {UpgradeableBeacon} will check that this address is a contract. */ function implementation() external view returns (address); }
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"components":[{"internalType":"address","name":"proxyAdminOwnerAddress","type":"address"},{"internalType":"string","name":"eip712Name","type":"string"},{"internalType":"string","name":"eip712Version","type":"string"}],"internalType":"struct ConstructorParams","name":"_params","type":"tuple"}],"stateMutability":"payable","type":"constructor"},{"inputs":[{"internalType":"address","name":"frozenAccount","type":"address"}],"name":"AccountIsFrozen","type":"error"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[],"name":"AgoraDollarErc1967NonPayable","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"allowance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientAllowance","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"needed","type":"uint256"}],"name":"ERC20InsufficientBalance","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC20InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC20InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC20InvalidSender","type":"error"},{"inputs":[{"internalType":"address","name":"spender","type":"address"}],"name":"ERC20InvalidSpender","type":"error"},{"inputs":[],"name":"ExpiredAuthorization","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"ImplementationTargetNotAContract","type":"error"},{"inputs":[],"name":"InvalidAuthorization","type":"error"},{"inputs":[{"internalType":"address","name":"caller","type":"address"},{"internalType":"address","name":"payee","type":"address"}],"name":"InvalidPayee","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[],"name":"ProxyDeniedAdminAccess","type":"error"},{"inputs":[],"name":"SignatureVerificationPaused","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[],"name":"TransferPaused","type":"error"},{"inputs":[],"name":"UsedOrCanceledAuthorization","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"authorizer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"nonce","type":"bytes32"}],"name":"AuthorizationCanceled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"authorizer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"nonce","type":"bytes32"}],"name":"AuthorizationUsed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"uint256","name":"_validAfter","type":"uint256"},{"internalType":"uint256","name":"_validBefore","type":"uint256"},{"internalType":"bytes32","name":"_nonce","type":"bytes32"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"receiveWithAuthorization","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"uint256","name":"_validAfter","type":"uint256"},{"internalType":"uint256","name":"_validBefore","type":"uint256"},{"internalType":"bytes32","name":"_nonce","type":"bytes32"},{"internalType":"uint8","name":"_v","type":"uint8"},{"internalType":"bytes32","name":"_r","type":"bytes32"},{"internalType":"bytes32","name":"_s","type":"bytes32"}],"name":"receiveWithAuthorization","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_transferValue","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_transferValue","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"uint256","name":"_validAfter","type":"uint256"},{"internalType":"uint256","name":"_validBefore","type":"uint256"},{"internalType":"bytes32","name":"_nonce","type":"bytes32"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"transferWithAuthorization","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"uint256","name":"_validAfter","type":"uint256"},{"internalType":"uint256","name":"_validBefore","type":"uint256"},{"internalType":"bytes32","name":"_nonce","type":"bytes32"},{"internalType":"uint8","name":"_v","type":"uint8"},{"internalType":"bytes32","name":"_r","type":"bytes32"},{"internalType":"bytes32","name":"_s","type":"bytes32"}],"name":"transferWithAuthorization","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _params (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]
-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 00000000000000000000000068898b77ebf7b55dca8a2e62d6fd74959a2930e2
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [5] : 41676f726120446f6c6c61720000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [7] : 3100000000000000000000000000000000000000000000000000000000000000
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