Overview
Max Total Supply
39,000 XGZ
Holders
191 (0.00%)
Market
Price
$161.52 @ 0.081683 ETH (-0.94%)
Onchain Market Cap
$6,299,399.78
Circulating Supply Market Cap
$0.00
Other Info
Token Contract (WITH 8 Decimals)
Balance
0.00000001 XGZValue
$0.00 ( ~0 Eth) [0.0000%]Loading...
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| # | Exchange | Pair | Price | 24H Volume | % Volume |
|---|
Contract Name:
ERC1967Proxy
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 1337 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Proxy.sol)
pragma solidity ^0.8.22;
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[ERC-1967], 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 ERC-1967) 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) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.Ownable
struct OwnableStorage {
address _owner;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;
function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
assembly {
$.slot := OwnableStorageLocation
}
}
/**
* @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.
*/
function __Ownable_init(address initialOwner) internal onlyInitializing {
__Ownable_init_unchained(initialOwner);
}
function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
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) {
OwnableStorage storage $ = _getOwnableStorage();
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 {
OwnableStorage storage $ = _getOwnableStorage();
address oldOwner = $._owner;
$._owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.20;
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Storage of the initializable contract.
*
* It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
* when using with upgradeable contracts.
*
* @custom:storage-location erc7201:openzeppelin.storage.Initializable
*/
struct InitializableStorage {
/**
* @dev Indicates that the contract has been initialized.
*/
uint64 _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool _initializing;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;
/**
* @dev The contract is already initialized.
*/
error InvalidInitialization();
/**
* @dev The contract is not initializing.
*/
error NotInitializing();
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint64 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
* number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
* production.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
// Cache values to avoid duplicated sloads
bool isTopLevelCall = !$._initializing;
uint64 initialized = $._initialized;
// Allowed calls:
// - initialSetup: the contract is not in the initializing state and no previous version was
// initialized
// - construction: the contract is initialized at version 1 (no reinitialization) and the
// current contract is just being deployed
bool initialSetup = initialized == 0 && isTopLevelCall;
bool construction = initialized == 1 && address(this).code.length == 0;
if (!initialSetup && !construction) {
revert InvalidInitialization();
}
$._initialized = 1;
if (isTopLevelCall) {
$._initializing = true;
}
_;
if (isTopLevelCall) {
$._initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint64 version) {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing || $._initialized >= version) {
revert InvalidInitialization();
}
$._initialized = version;
$._initializing = true;
_;
$._initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
_checkInitializing();
_;
}
/**
* @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
*/
function _checkInitializing() internal view virtual {
if (!_isInitializing()) {
revert NotInitializing();
}
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing) {
revert InvalidInitialization();
}
if ($._initialized != type(uint64).max) {
$._initialized = type(uint64).max;
emit Initialized(type(uint64).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint64) {
return _getInitializableStorage()._initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _getInitializableStorage()._initializing;
}
/**
* @dev Pointer to storage slot. Allows integrators to override it with a custom storage location.
*
* NOTE: Consider following the ERC-7201 formula to derive storage locations.
*/
function _initializableStorageSlot() internal pure virtual returns (bytes32) {
return INITIALIZABLE_STORAGE;
}
/**
* @dev Returns a pointer to the storage namespace.
*/
// solhint-disable-next-line var-name-mixedcase
function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
bytes32 slot = _initializableStorageSlot();
assembly {
$.slot := slot
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.22;
import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";
/**
* @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
* {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
*
* A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
* reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
* `UUPSUpgradeable` with a custom implementation of upgrades.
*
* The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
*/
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable
address private immutable __self = address(this);
/**
* @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
* and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
* while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
* If the getter returns `"5.0.0"`, only `upgradeToAndCall(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 The call is from an unauthorized context.
*/
error UUPSUnauthorizedCallContext();
/**
* @dev The storage `slot` is unsupported as a UUID.
*/
error UUPSUnsupportedProxiableUUID(bytes32 slot);
/**
* @dev Check that the execution is being performed through a delegatecall call and that the execution context is
* a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case
* for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
* function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
* fail.
*/
modifier onlyProxy() {
_checkProxy();
_;
}
/**
* @dev Check that the execution is not being performed through a delegate call. This allows a function to be
* callable on the implementing contract but not through proxies.
*/
modifier notDelegated() {
_checkNotDelegated();
_;
}
function __UUPSUpgradeable_init() internal onlyInitializing {
}
function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
}
/**
* @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the
* implementation. It is used to validate the implementation's compatibility when performing an upgrade.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
*/
function proxiableUUID() external view virtual notDelegated returns (bytes32) {
return ERC1967Utils.IMPLEMENTATION_SLOT;
}
/**
* @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
* encoded in `data`.
*
* Calls {_authorizeUpgrade}.
*
* Emits an {Upgraded} event.
*
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallUUPS(newImplementation, data);
}
/**
* @dev Reverts if the execution is not performed via delegatecall or the execution
* context is not of a proxy with an ERC-1967 compliant implementation pointing to self.
*/
function _checkProxy() internal view virtual {
if (
address(this) == __self || // Must be called through delegatecall
ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
) {
revert UUPSUnauthorizedCallContext();
}
}
/**
* @dev Reverts if the execution is performed via delegatecall.
* See {notDelegated}.
*/
function _checkNotDelegated() internal view virtual {
if (address(this) != __self) {
// Must not be called through delegatecall
revert UUPSUnauthorizedCallContext();
}
}
/**
* @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
* {upgradeToAndCall}.
*
* Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
*
* ```solidity
* function _authorizeUpgrade(address) internal onlyOwner {}
* ```
*/
function _authorizeUpgrade(address newImplementation) internal virtual;
/**
* @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
*
* As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
* is expected to be the implementation slot in ERC-1967.
*
* Emits an {IERC1967-Upgraded} event.
*/
function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
revert UUPSUnsupportedProxiableUUID(slot);
}
ERC1967Utils.upgradeToAndCall(newImplementation, data);
} catch {
// The implementation is not UUPS
revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC-20
* applications.
*/
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
/// @custom:storage-location erc7201:openzeppelin.storage.ERC20
struct ERC20Storage {
mapping(address account => uint256) _balances;
mapping(address account => mapping(address spender => uint256)) _allowances;
uint256 _totalSupply;
string _name;
string _symbol;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;
function _getERC20Storage() private pure returns (ERC20Storage storage $) {
assembly {
$.slot := ERC20StorageLocation
}
}
/**
* @dev Sets the values for {name} and {symbol}.
*
* Both values are immutable: they can only be set once during construction.
*/
function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC20_init_unchained(name_, symbol_);
}
function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
ERC20Storage storage $ = _getERC20Storage();
$._name = name_;
$._symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual returns (string memory) {
ERC20Storage storage $ = _getERC20Storage();
return $._name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual returns (string memory) {
ERC20Storage storage $ = _getERC20Storage();
return $._symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `value`.
*/
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual returns (uint256) {
ERC20Storage storage $ = _getERC20Storage();
return $._allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Skips emitting an {Approval} event indicating an allowance update. This is not
* required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `value`.
* - the caller must have allowance for ``from``'s tokens of at least
* `value`.
*/
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
/**
* @dev Moves a `value` amount of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
/**
* @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
* (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
* this function.
*
* Emits a {Transfer} event.
*/
function _update(address from, address to, uint256 value) internal virtual {
ERC20Storage storage $ = _getERC20Storage();
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
$._totalSupply += value;
} else {
uint256 fromBalance = $._balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
$._balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
$._totalSupply -= value;
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
$._balances[to] += value;
}
}
emit Transfer(from, to, value);
}
/**
* @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
* Relies on the `_update` mechanism
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
* Relies on the `_update` mechanism.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead
*/
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
/**
* @dev Sets `value` as the allowance of `spender` over the `owner`'s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
/**
* @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
*
* By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
* `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
* `Approval` event during `transferFrom` operations.
*
* Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
* true using the following override:
*
* ```solidity
* function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
* super._approve(owner, spender, value, true);
* }
* ```
*
* Requirements are the same as {_approve}.
*/
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
ERC20Storage storage $ = _getERC20Storage();
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
$._allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
/**
* @dev Updates `owner`'s allowance for `spender` based on spent `value`.
*
* Does not update the allowance value in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Does not emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance < type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Burnable.sol)
pragma solidity ^0.8.20;
import {ERC20Upgradeable} from "../ERC20Upgradeable.sol";
import {ContextUpgradeable} from "../../../utils/ContextUpgradeable.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";
/**
* @dev Extension of {ERC20} that allows token holders to destroy both their own
* tokens and those that they have an allowance for, in a way that can be
* recognized off-chain (via event analysis).
*/
abstract contract ERC20BurnableUpgradeable is Initializable, ContextUpgradeable, ERC20Upgradeable {
function __ERC20Burnable_init() internal onlyInitializing {
}
function __ERC20Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Destroys a `value` amount of tokens from the caller.
*
* See {ERC20-_burn}.
*/
function burn(uint256 value) public virtual {
_burn(_msgSender(), value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, deducting from
* the caller's allowance.
*
* See {ERC20-_burn} and {ERC20-allowance}.
*
* Requirements:
*
* - the caller must have allowance for ``accounts``'s tokens of at least
* `value`.
*/
function burnFrom(address account, uint256 value) public virtual {
_spendAllowance(account, _msgSender(), value);
_burn(account, value);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/ERC20Pausable.sol)
pragma solidity ^0.8.20;
import {ERC20Upgradeable} from "../ERC20Upgradeable.sol";
import {PausableUpgradeable} from "../../../utils/PausableUpgradeable.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";
/**
* @dev ERC-20 token with pausable token transfers, minting and burning.
*
* Useful for scenarios such as preventing trades until the end of an evaluation
* period, or having an emergency switch for freezing all token transfers in the
* event of a large bug.
*
* IMPORTANT: This contract does not include public pause and unpause functions. In
* addition to inheriting this contract, you must define both functions, invoking the
* {Pausable-_pause} and {Pausable-_unpause} internal functions, with appropriate
* access control, e.g. using {AccessControl} or {Ownable}. Not doing so will
* make the contract pause mechanism of the contract unreachable, and thus unusable.
*/
abstract contract ERC20PausableUpgradeable is Initializable, ERC20Upgradeable, PausableUpgradeable {
function __ERC20Pausable_init() internal onlyInitializing {
}
function __ERC20Pausable_init_unchained() internal onlyInitializing {
}
/**
* @dev See {ERC20-_update}.
*
* Requirements:
*
* - the contract must not be paused.
*/
function _update(address from, address to, uint256 value) internal virtual override whenNotPaused {
super._update(from, to, value);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @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 ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
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 v5.3.0) (utils/Pausable.sol)
pragma solidity ^0.8.20;
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.Pausable
struct PausableStorage {
bool _paused;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;
function _getPausableStorage() private pure returns (PausableStorage storage $) {
assembly {
$.slot := PausableStorageLocation
}
}
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
/**
* @dev The operation failed because the contract is paused.
*/
error EnforcedPause();
/**
* @dev The operation failed because the contract is not paused.
*/
error ExpectedPause();
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
function __Pausable_init() internal onlyInitializing {
}
function __Pausable_init_unchained() internal onlyInitializing {
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
PausableStorage storage $ = _getPausableStorage();
return $._paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
if (paused()) {
revert EnforcedPause();
}
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
if (!paused()) {
revert ExpectedPause();
}
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
PausableStorage storage $ = _getPausableStorage();
$._paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
PausableStorage storage $ = _getPausableStorage();
$._paused = false;
emit Unpaused(_msgSender());
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.20;
/**
* @dev ERC-1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard ERC-20 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 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 ERC-721 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
*/
interface IERC721Errors {
/**
* @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-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 ERC-1155 Errors
* Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 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) (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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Utils.sol)
pragma solidity ^0.8.22;
import {IBeacon} from "../beacon/IBeacon.sol";
import {IERC1967} from "../../interfaces/IERC1967.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";
/**
* @dev This library provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots.
*/
library ERC1967Utils {
/**
* @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 ERC-1967 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 IERC1967.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 ERC-1967) 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 ERC-1967 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 IERC1967.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 ERC-1967 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 IERC1967.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/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 v5.3.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC-20
* applications.
*/
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
mapping(address account => uint256) private _balances;
mapping(address account => mapping(address spender => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* Both values are immutable: they can only be set once during construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `value`.
*/
function transfer(address to, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_transfer(owner, to, value);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 value) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, value);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Skips emitting an {Approval} event indicating an allowance update. This is not
* required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `value`.
* - the caller must have allowance for ``from``'s tokens of at least
* `value`.
*/
function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, value);
_transfer(from, to, value);
return true;
}
/**
* @dev Moves a `value` amount of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _transfer(address from, address to, uint256 value) internal {
if (from == address(0)) {
revert ERC20InvalidSender(address(0));
}
if (to == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(from, to, value);
}
/**
* @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
* (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
* this function.
*
* Emits a {Transfer} event.
*/
function _update(address from, address to, uint256 value) internal virtual {
if (from == address(0)) {
// Overflow check required: The rest of the code assumes that totalSupply never overflows
_totalSupply += value;
} else {
uint256 fromBalance = _balances[from];
if (fromBalance < value) {
revert ERC20InsufficientBalance(from, fromBalance, value);
}
unchecked {
// Overflow not possible: value <= fromBalance <= totalSupply.
_balances[from] = fromBalance - value;
}
}
if (to == address(0)) {
unchecked {
// Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
_totalSupply -= value;
}
} else {
unchecked {
// Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
_balances[to] += value;
}
}
emit Transfer(from, to, value);
}
/**
* @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
* Relies on the `_update` mechanism
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead.
*/
function _mint(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidReceiver(address(0));
}
_update(address(0), account, value);
}
/**
* @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
* Relies on the `_update` mechanism.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* NOTE: This function is not virtual, {_update} should be overridden instead
*/
function _burn(address account, uint256 value) internal {
if (account == address(0)) {
revert ERC20InvalidSender(address(0));
}
_update(account, address(0), value);
}
/**
* @dev Sets `value` as the allowance of `spender` over the `owner`'s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*
* Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
*/
function _approve(address owner, address spender, uint256 value) internal {
_approve(owner, spender, value, true);
}
/**
* @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
*
* By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
* `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
* `Approval` event during `transferFrom` operations.
*
* Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
* true using the following override:
*
* ```solidity
* function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
* super._approve(owner, spender, value, true);
* }
* ```
*
* Requirements are the same as {_approve}.
*/
function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
if (owner == address(0)) {
revert ERC20InvalidApprover(address(0));
}
if (spender == address(0)) {
revert ERC20InvalidSpender(address(0));
}
_allowances[owner][spender] = value;
if (emitEvent) {
emit Approval(owner, spender, value);
}
}
/**
* @dev Updates `owner`'s allowance for `spender` based on spent `value`.
*
* Does not update the allowance value in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Does not emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance < type(uint256).max) {
if (currentAllowance < value) {
revert ERC20InsufficientAllowance(spender, currentAllowance, value);
}
unchecked {
_approve(owner, spender, currentAllowance - value, false);
}
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC-20 standard.
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 value) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (utils/Address.sol)
pragma solidity ^0.8.20;
import {Errors} from "./Errors.sol";
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @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 Errors.InsufficientBalance(address(this).balance, amount);
}
(bool success, bytes memory returndata) = recipient.call{value: amount}("");
if (!success) {
_revert(returndata);
}
}
/**
* @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
* {Errors.FailedCall} 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 Errors.InsufficientBalance(address(this).balance, value);
}
(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 {Errors.FailedCall}) 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 {Errors.FailedCall} 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 {Errors.FailedCall}.
*/
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
assembly ("memory-safe") {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert Errors.FailedCall();
}
}
}// 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 v5.1.0) (utils/Errors.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of common custom errors used in multiple contracts
*
* IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
* It is recommended to avoid relying on the error API for critical functionality.
*
* _Available since v5.1._
*/
library Errors {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error InsufficientBalance(uint256 balance, uint256 needed);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedCall();
/**
* @dev The deployment failed.
*/
error FailedDeployment();
/**
* @dev A necessary precompile is missing.
*/
error MissingPrecompile(address);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[ERC].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (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 ERC-1967 implementation slot:
* ```solidity
* contract ERC1967 {
* // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
* 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;
* }
* }
* ```
*
* TIP: Consider using this library along with {SlotDerivation}.
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct Int256Slot {
int256 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) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `Int256Slot` with member `value` located at `slot`.
*/
function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) {
assembly ("memory-safe") {
r.slot := slot
}
}
/**
* @dev Returns a `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
assembly ("memory-safe") {
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) {
assembly ("memory-safe") {
r.slot := store.slot
}
}
/**
* @dev Returns a `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
assembly ("memory-safe") {
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) {
assembly ("memory-safe") {
r.slot := store.slot
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {Context} from "@openzeppelin/contracts/utils/Context.sol";
abstract contract AccessControl is Context {
/// @custom:storage-location erc7201:eth.storage.AccessControl
struct AccessControlStorage {
mapping(bytes32 => mapping(address => bool)) roles;
}
/// @dev the role that can manage the access control
bytes32 public constant MANAGE_ROLE = keccak256("MANAGE_ROLE");
/**
* @dev Role grant event
* @param role The role being granted
* @param account The address of the account receiving the role
* @param operator The address of the operator granting the role
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed operator);
/**
* @dev Role revocation event
* @param role The role being revoked
* @param account The address of the account whose role is being revoked
* @param operator The address of the operator revoking the role
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed operator);
/**
* @dev Unauthorized account error
* @param account The address of the account attempting to perform the operation
* @param neededRole The required role permission
*/
error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);
/**
* @dev if the caller is not the owner, it will check if the caller has the specified role
* @param role The role to check
*/
modifier onlyRole(bytes32 role) {
address sender = _msgSender();
if (!hasRole(role, sender)) {
revert AccessControlUnauthorizedAccount(sender, role);
}
_;
}
function _isOwner(address account) internal view virtual returns (bool);
function _getAccessControlStorage() internal view virtual returns (AccessControlStorage storage);
/**
* @dev Checks if an account has a specific role
* @param role The role identifier
* @param account The address to check
* @return Returns true if the account has the role, false otherwise
*/
function hasRole(bytes32 role, address account) public view virtual returns (bool) {
return _isOwner(account) || _getAccessControlStorage().roles[role][account];
}
/**
* @dev Grants a role to an account
* @param role The role identifier to grant
* @param account The address of the account receiving the role
* @notice Only accounts with the admin role can call this function
*/
function grantRole(bytes32 role, address account) public virtual onlyRole(MANAGE_ROLE) {
_grantRole(role, account);
}
/**
* @dev Revokes a role from an account
* @param role The role identifier to revoke
* @param account The address of the account whose role is being revoked
* @notice Only accounts with the admin role can call this function
*/
function revokeRole(bytes32 role, address account) public virtual onlyRole(MANAGE_ROLE) {
_revokeRole(role, account);
}
function _grantRole(bytes32 role, address account) internal virtual {
mapping(address => bool) storage roleMembers = _getAccessControlStorage().roles[role];
if (roleMembers[account]) {
return;
}
roleMembers[account] = true;
emit RoleGranted(role, account, _msgSender());
}
function _revokeRole(bytes32 role, address account) internal virtual {
mapping(address => bool) storage roleMembers = _getAccessControlStorage().roles[role];
if (!roleMembers[account]) {
return;
}
roleMembers[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AccessControl} from "./AccessControl.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
abstract contract AccessControlUpgradeable is AccessControl, Initializable {
function __AccessControl_init() internal onlyInitializing {}
function __AccessControl_init_unchained() internal onlyInitializing {}
// keccak256(abi.encode(uint256(keccak256("eth.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant AccessControlStorageLocation =
0xc7718c714a4ea3787e76d937c7cf515450ac49586b94b576139798de290de800;
function _getAccessControlStorage() internal view virtual override returns (AccessControlStorage storage $) {
assembly {
$.slot := AccessControlStorageLocation
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AddressListLib, CommonErrors} from "../lib/AddressList.sol";
import {
IBlacklistQueryExtension,
IBlacklistCore
} from "../interfaces/IBlacklistable.sol";
/// @dev Provide blacklist function for Token
abstract contract BaseBlacklistable is IBlacklistCore, IBlacklistQueryExtension {
using AddressListLib for AddressListLib.AddressList;
/// @dev Raised if address is not in blacklist
error Blacklistable__NotInBlacklist();
/// @dev Raised if address is in blacklist
error Blacklistable__AlreadyInBlacklist();
uint256 private constant MAX_BATCH_SIZE = 100;
function _getBlacklistStorage() internal view virtual returns (AddressListLib.AddressList storage);
modifier onlyBlacklistController() {
_validateBlacklistController();
_;
}
function _validateBlacklistController() internal view virtual;
/// @inheritdoc IBlacklistQueryExtension
/// @notice Returns the complete list of blacklisted addresses. Be aware that this function
/// may fail when the list grows too large (typically over 10,000 addresses) due to:
/// 1. RPC node response size limitations
/// 2. Block gas limits (for on-chain calls)
/// 3. EVM stack depth restrictions
/// If you encounter any issues retrieving the complete list, please use the paginated
/// alternative: `blacklistedAddressesPaginated(uint256 offset, uint256 limit)` instead,
/// which allows retrieving the list in manageable chunks.
function blacklistedAddresses() external view virtual returns (address[] memory) {
return _getBlacklistStorage().getList();
}
/// @inheritdoc IBlacklistQueryExtension
function blacklistedAddressesPaginated(uint256 offset, uint256 limit)
external
view
virtual
returns (address[] memory addresses)
{
return _getBlacklistStorage().getListPaginated(offset, limit);
}
/// @inheritdoc IBlacklistQueryExtension
function blacklistedAddressCount() public view virtual returns (uint256) {
return _getBlacklistStorage().count();
}
/// @inheritdoc IBlacklistCore
function isBlacklisted(address account) public view virtual returns (bool) {
return _isBlacklisted(account);
}
/// @inheritdoc IBlacklistCore
function areBlacklisted(address[] calldata addresses) external view virtual returns (bool[] memory) {
return _getBlacklistStorage().areInList(addresses);
}
/// @inheritdoc IBlacklistCore
function addToBlacklist(address addr) external virtual onlyBlacklistController {
_addToBlacklist(addr, true);
}
/// @inheritdoc IBlacklistCore
/// @dev If the address is already in the blacklist, the function will not revert.
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function batchAddToBlacklist(address[] calldata addresses) public virtual onlyBlacklistController {
uint256 len = addresses.length;
if (len > MAX_BATCH_SIZE) {
revert CommonErrors.ExceedsMaximumAmount(len, MAX_BATCH_SIZE);
}
for (uint256 i = 0; i < len;) {
_addToBlacklist(addresses[i], false);
unchecked {
i++;
}
}
}
/// @inheritdoc IBlacklistCore
function removeFromBlacklist(address addr) external virtual onlyBlacklistController {
_removeFromBlacklist(addr, true);
}
/// @inheritdoc IBlacklistCore
/// @dev If the address to remove is not in the list, it will not be reverted,
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function batchRemoveFromBlacklist(address[] calldata addresses) public virtual onlyBlacklistController {
uint256 len = addresses.length;
if (len > MAX_BATCH_SIZE) {
revert CommonErrors.ExceedsMaximumAmount(len, MAX_BATCH_SIZE);
}
for (uint256 i = 0; i < len;) {
_removeFromBlacklist(addresses[i], false);
unchecked {
i++;
}
}
}
/// @inheritdoc IBlacklistCore
/// @dev If the address to remove is not in the list or the address to add is already in the list, it will not be reverted,
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function updateBlacklist(address[] calldata addressesToAdd, address[] calldata addressesToRemove)
external
virtual
onlyBlacklistController
{
batchAddToBlacklist(addressesToAdd);
batchRemoveFromBlacklist(addressesToRemove);
}
function _isBlacklisted(address account) internal view virtual returns (bool) {
return _getBlacklistStorage().isInList(account);
}
function _addToBlacklist(address account, bool strict) internal virtual {
if (!_getBlacklistStorage().addToList(account)) {
if (strict) {
revert Blacklistable__AlreadyInBlacklist();
} else {
return;
}
}
emit Blacklisted(account);
}
function _removeFromBlacklist(address account, bool strict) internal virtual {
if (!_getBlacklistStorage().removeFromList(account)) {
if (strict) {
revert Blacklistable__NotInBlacklist();
} else {
return;
}
}
emit UnBlacklisted(account);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {IBlacklistToggleExtension} from "../interfaces/IBlacklistable.sol";
import {CommonErrors} from "../lib/AddressList.sol";
abstract contract BaseToggleBlacklistable is IBlacklistToggleExtension {
/// @dev Emit when blacklist enabled
event BlacklistEnabled();
/// @dev Emit when blacklist disabled
event BlacklistDisabled();
/// @custom:storage-location erc7201:eth.storage.BlacklistToggle
struct BlacklistToggleStorage {
/// @dev Bool indicate blacklist is enabled or not
bool blacklistEnabled;
}
/// @dev Get the blacklist toggle storage
/// @return storage The blacklist toggle storage
function _getBlacklistToggleStorage() internal view virtual returns (BlacklistToggleStorage storage);
/// @inheritdoc IBlacklistToggleExtension
function isBlacklistEnabled() public view virtual returns (bool) {
return _getBlacklistToggleStorage().blacklistEnabled;
}
function _setBlacklistEnabled(bool enabled) internal virtual {
BlacklistToggleStorage storage $ = _getBlacklistToggleStorage();
if ($.blacklistEnabled == enabled) return;
if (enabled) {
emit BlacklistEnabled();
} else {
emit BlacklistDisabled();
}
$.blacklistEnabled = enabled;
}
function _requireBlacklistEnabled() internal view virtual {
if (!isBlacklistEnabled()) {
revert CommonErrors.Blacklistable__BlacklistNotEnabled();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {IWhitelistToggleExtension} from "../interfaces/IWhitelistable.sol";
import {CommonErrors} from "../lib/AddressList.sol";
/// @dev Provide whitelist function for Token
abstract contract BaseToggleWhitelistable is IWhitelistToggleExtension {
/// @dev Emit when whitelist enabled
event WhitelistEnabled();
/// @dev Emit when whitelist disabled
event WhitelistDisabled();
/// @custom:storage-location erc7201:eth.storage.WhitelistToggle
struct WhitelistToggleStorage {
/// @dev Bool indicate whitelist is enabled or not
bool whitelistEnabled;
}
/// @dev Get the whitelist toggle storage
/// @return storage The whitelist toggle storage
function _getWhitelistToggleStorage() internal view virtual returns (WhitelistToggleStorage storage);
/// @inheritdoc IWhitelistToggleExtension
function isWhitelistEnabled() public view virtual returns (bool) {
return _getWhitelistToggleStorage().whitelistEnabled;
}
function _setWhitelistEnabled(bool enabled) internal virtual {
WhitelistToggleStorage storage $ = _getWhitelistToggleStorage();
if ($.whitelistEnabled == enabled) return;
if (enabled) {
emit WhitelistEnabled();
} else {
emit WhitelistDisabled();
}
$.whitelistEnabled = enabled;
}
function _requireWhitelistEnabled() internal view virtual {
if (!isWhitelistEnabled()) {
revert CommonErrors.Whitelistable__WhitelistNotEnabled();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AddressListLib, CommonErrors} from "../lib/AddressList.sol";
import {
IWhitelistQueryExtension,
IWhitelistCore
} from "../interfaces/IWhitelistable.sol";
/// @dev Provide whitelist function for Token
abstract contract BaseWhitelistable is IWhitelistCore,IWhitelistQueryExtension {
using AddressListLib for AddressListLib.AddressList;
/// @dev Raised if address is not in whitelist
error Whitelistable__NotInWhitelist();
/// @dev Raised if address is in whitelist
error Whitelistable__AlreadyInWhitelist();
AddressListLib.AddressList private _whitelistStorage;
uint256 private constant MAX_BATCH_SIZE = 100;
function _getWhitelistStorage() internal view virtual returns (AddressListLib.AddressList storage);
modifier onlyWhitelistController() {
_validateWhitelistController();
_;
}
function _validateWhitelistController() internal view virtual;
/// @inheritdoc IWhitelistQueryExtension
/// @notice Returns the complete list of whitelisted addresses. Be aware that this function
/// may fail when the list grows too large (typically over 10,000 addresses) due to:
/// 1. RPC node response size limitations
/// 2. Block gas limits (for on-chain calls)
/// 3. EVM stack depth restrictions
/// If you encounter any issues retrieving the complete list, please use the paginated
/// alternative: `whitelistedAddressesPaginated(uint256 offset, uint256 limit)` instead,
/// which allows retrieving the list in manageable chunks.
function whitelistedAddresses() external view virtual returns (address[] memory) {
return _getWhitelistStorage().getList();
}
/// @inheritdoc IWhitelistQueryExtension
function whitelistedAddressesPaginated(uint256 offset, uint256 limit)
external
virtual
view
returns (address[] memory addresses)
{
return _getWhitelistStorage().getListPaginated(offset, limit);
}
/// @inheritdoc IWhitelistQueryExtension
function whitelistedAddressCount() public view virtual returns (uint256) {
return _getWhitelistStorage().count();
}
/// @inheritdoc IWhitelistCore
function isWhitelisted(address account) public view virtual returns (bool) {
return _isWhitelisted(account);
}
/// @inheritdoc IWhitelistCore
function areWhitelisted(address[] calldata addresses) external view virtual returns (bool[] memory) {
return _getWhitelistStorage().areInList(addresses);
}
/// @inheritdoc IWhitelistCore
function addToWhitelist(address addr) external virtual onlyWhitelistController {
_addToWhitelist(addr, true);
}
/// @inheritdoc IWhitelistCore
/// @dev If the address is already in the list, the function will not revert.
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function batchAddToWhitelist(address[] calldata addresses) public virtual onlyWhitelistController {
uint256 len = addresses.length;
if (len > MAX_BATCH_SIZE) {
revert CommonErrors.ExceedsMaximumAmount(len, MAX_BATCH_SIZE);
}
for (uint256 i = 0; i < len;) {
_addToWhitelist(addresses[i], false);
unchecked {
i++;
}
}
}
/// @inheritdoc IWhitelistCore
function removeFromWhitelist(address addr) external virtual onlyWhitelistController {
_removeFromWhitelist(addr, true);
}
/// @inheritdoc IWhitelistCore
/// @dev If the address to remove is not in the list, it will not be reverted,
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function batchRemoveFromWhitelist(address[] calldata addresses) public virtual onlyWhitelistController {
uint256 len = addresses.length;
if (len > MAX_BATCH_SIZE) {
revert CommonErrors.ExceedsMaximumAmount(len, MAX_BATCH_SIZE);
}
for (uint256 i = 0; i < len;) {
_removeFromWhitelist(addresses[i], false);
unchecked {
i++;
}
}
}
/// @inheritdoc IWhitelistCore
/// @dev If the address to remove is not in the list or the address to add is already in the list, it will not be reverted,
/// This design choice improves usability by eliminating the need for callers to pre-check addresses,
/// thus simplifying batch operations and reducing additional on-chain transactions and gas costs.
function updateWhitelist(address[] calldata addressesToAdd, address[] calldata addressesToRemove)
external
virtual
onlyWhitelistController
{
batchAddToWhitelist(addressesToAdd);
batchRemoveFromWhitelist(addressesToRemove);
}
function _isWhitelisted(address account) internal view virtual returns (bool) {
return _getWhitelistStorage().isInList(account);
}
function _addToWhitelist(address account, bool strict) internal virtual {
if (!_getWhitelistStorage().addToList(account)) {
if (strict) {
revert Whitelistable__AlreadyInWhitelist();
} else {
return;
}
}
emit Whitelisted(account);
}
function _removeFromWhitelist(address account, bool strict) internal virtual {
if (!_getWhitelistStorage().removeFromList(account)) {
if (strict) {
revert Whitelistable__NotInWhitelist();
} else {
return;
}
}
emit UnWhitelisted(account);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AddressListLib} from "../lib/AddressList.sol";
import {BaseBlacklistable} from "./BaseBlacklistable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
abstract contract BlacklistableV1Upgradeable is BaseBlacklistable, Initializable {
function __BlacklistableV1_init() internal onlyInitializing {
__BlacklistableV1_init_unchained();
}
function __BlacklistableV1_init_unchained() internal onlyInitializing {}
// keccak256(abi.encode(uint256(keccak256("eth.storage.AddressList.blacklist")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant BlacklistStorageLocation =
0xe324a5d682b26d0ea8420970e5277ed2e5a32b3840534fa099829ebe4cef1200;
function _getBlacklistStorage() internal view virtual override returns (AddressListLib.AddressList storage $) {
assembly {
$.slot := BlacklistStorageLocation
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Capped.sol)
pragma solidity ^0.8.20;
import {ERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
/**
* @dev Extension of {ERC20} that adds a cap to the supply of tokens.
*/
abstract contract ERC20CappedUpgradeable is Initializable, ERC20Upgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.ERC20Capped
struct ERC20CappedStorage {
uint256 _cap;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20Capped")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant ERC20CappedStorageLocation =
0x0f070392f17d5f958cc1ac31867dabecfc5c9758b4a419a200803226d7155d00;
function _getERC20CappedStorage() private pure returns (ERC20CappedStorage storage $) {
assembly {
$.slot := ERC20CappedStorageLocation
}
}
/**
* @dev Total supply cap has been exceeded.
*/
error ERC20ExceededCap(uint256 increasedSupply, uint256 cap);
/**
* @dev Sets the value of the `cap`. This value is immutable, it can only be
* set once during construction.
*/
function __ERC20Capped_init(uint256 cap_) internal onlyInitializing {
__ERC20Capped_init_unchained(cap_);
}
function __ERC20Capped_init_unchained(uint256 cap_) internal onlyInitializing {
if (cap_ > 0) {
ERC20CappedStorage storage $ = _getERC20CappedStorage();
$._cap = cap_;
}
}
/**
* @dev Returns the cap on the token's total supply.
*/
function cap() public view virtual returns (uint256) {
ERC20CappedStorage storage $ = _getERC20CappedStorage();
return $._cap;
}
/**
* @dev See {ERC20-_update}.
*/
function _update(address from, address to, uint256 value) internal virtual override {
super._update(from, to, value);
uint256 maxSupply = cap();
if (from == address(0) && maxSupply > 0) {
uint256 supply = totalSupply();
if (supply > maxSupply) {
revert ERC20ExceededCap(supply, maxSupply);
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
/**
* @dev Extension of {ERC20} that adds a cap to the supply of tokens.
*/
abstract contract ERC20Capped is ERC20 {
uint256 private immutable _cap;
/**
* @dev Total supply cap has been exceeded.
*/
error ERC20ExceededCap(uint256 increasedSupply, uint256 cap);
/**
* @dev Sets the value of the `cap`. This value is immutable, it can only be
* set once during construction.
*/
constructor(uint256 cap_) {
_cap = cap_;
}
/**
* @dev Returns the cap on the token's total supply.
*/
function cap() public view virtual returns (uint256) {
return _cap;
}
/**
* @dev See {ERC20-_update}.
*/
function _update(address from, address to, uint256 value) internal virtual override {
super._update(from, to, value);
if (from == address(0) && _cap > 0) {
uint256 maxSupply = cap();
uint256 supply = totalSupply();
if (supply > maxSupply) {
revert ERC20ExceededCap(supply, maxSupply);
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ~0.8.20;
contract Multicall {
/// @notice Aggregate calls, ensuring each returns success if required
/// @param calls An array of Call3 structs
/// @return returnData An array of Result structs
function aggregate(bytes[] calldata calls) public virtual returns (bytes[] memory returnData) {
uint256 length = calls.length;
returnData = new bytes[](length);
for (uint256 i = 0; i < length;) {
bool success;
(success, returnData[i]) = address(this).delegatecall(calls[i]);
require(success, "Multicall3: call failed");
unchecked {
++i;
}
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import {AddressListLib} from "../lib/AddressList.sol";
import {BaseWhitelistable} from "./BaseWhitelistable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
abstract contract WhitelistableV1Upgradeable is BaseWhitelistable, Initializable {
function __WhitelistableV1_init() internal onlyInitializing {
__WhitelistableV1_init_unchained();
}
function __WhitelistableV1_init_unchained() internal onlyInitializing {}
// keccak256(abi.encode(uint256(keccak256("eth.storage.AddressList.whitelist")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant WhitelistStorageLocation =
0x1cfa5e7091c18064c617daf65974fb5d5c7430ad724797e7a06249adbc38f100;
function _getWhitelistStorage() internal view virtual override returns (AddressListLib.AddressList storage $) {
assembly {
$.slot := WhitelistStorageLocation
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ~0.8.20;
import {ERC20Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import {ERC20PausableUpgradeable} from
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20PausableUpgradeable.sol";
import {ERC20BurnableUpgradeable} from
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20BurnableUpgradeable.sol";
import {ERC20CappedUpgradeable} from "./extensions/ERC20CappedUpgradeable.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {Helper} from "./lib/Helper.sol";
import {IWhitelistToggleExtension, IWhitelistCore} from "./interfaces/IWhitelistable.sol";
import {IBlacklistToggleExtension, IBlacklistCore} from "./interfaces/IBlacklistable.sol";
import {CommonErrors} from "./lib/AddressList.sol";
import {BaseToggleWhitelistable} from "./extensions/BaseToggleWhitelistable.sol";
import {BaseToggleBlacklistable} from "./extensions/BaseToggleBlacklistable.sol";
import {IExternalWhitelistImpl, IExternalBlacklistImpl} from "./interfaces/ExternalImpl.sol";
// Neet to import this for HH Ignition
import {ERC1967Proxy} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Multicall} from "./extensions/Multicall.sol";
error InvalidDecimals(uint8 decimals);
error MintingNotEnabled();
error BurningNotEnabled();
error PausingNotEnabled();
error AddrBalanceExceedsMaxAllowed(address addr, uint256 amount);
error RecipientBlacklisted(address addr);
error RecipientNotWhitelisted(address addr);
error MaxTokenAmountNotAllowed();
error MaxTokenAmountPerAddrLtPrevious();
error TransferFromSenderNotWhitelisted(address sender);
error TransferFromSenderBlacklisted(address sender);
error InvalidRecipientAndAmount();
error UnAuthorisedSender();
error AuthorisedSenderEnabled();
error InvalidTaxBPS(uint256 taxBPS);
error InvalidDeflationBPS(uint256 deflationBPS);
error TokenIsNotTaxable();
error TokenIsNotDeflationary();
contract GLDBToken is
Multicall,
Initializable,
ERC20Upgradeable,
ERC20PausableUpgradeable,
ERC20BurnableUpgradeable,
ERC20CappedUpgradeable,
OwnableUpgradeable,
UUPSUpgradeable,
BaseToggleWhitelistable,
BaseToggleBlacklistable,
IExternalWhitelistImpl,
IExternalBlacklistImpl,
IERC165
{
/// @dev Emit when new document uri set
event DocumentUriSet(string documentUri);
event MaxTokenAmountPerSet(uint256 maxTokenAmount);
event TaxConfigSet(address addr, uint256 taxBPS);
event DeflationConfigSet(uint256 deflationBPS);
event WhitelistImplSet(address indexed whitelistImpl);
event BlacklistImplSet(address indexed blacklistImpl);
/// @dev MaxBPSAmount 10_000=100%
uint256 private constant MAX_BPS_AMOUNT = 10_000;
string public constant identifier = "GLDBToken";
struct ConstructorParams {
uint256 maxTokenAmountPerAddress;
string metadata;
string documentUri;
/// tax config
/// @dev Tax fee recipient address
address taxAddress;
/// @dev Tax fee BPS(100bps=1%)
uint256 taxBPS;
/// @dev Burn fee BPS(100bps=1%)
uint256 deflationBPS;
/// flags
bool isBurnable;
bool isMintable;
bool isPausable;
bool isBlacklistEnabled;
bool isWhitelistEnabled;
bool isMaxAmountPerAddressSet;
bool isForceTransferAllowed;
bool isTaxable;
bool isDeflationary;
bool authorisedSenderEnabled;
/// whitelist implementation
IWhitelistCore whitelistImpl;
/// blacklist implementation
IBlacklistCore blacklistImpl;
}
// Storage structures for ERC-7201 named storage pattern
/// @dev Token features struct
struct TokenFeatures {
bool isBurnable;
bool isMintable;
bool isPausable;
bool isMaxAmountPerAddressSet;
bool isForceTransferAllowed;
bool isTaxable;
bool isDeflationary;
bool authorisedSenderEnabled;
}
/// @custom:storage-location erc7201:eth.storage.Version
struct VersionStorage {
uint256 versionNumber;
string version;
}
/// @custom:storage-location erc7201:eth.storage.TokenConfig
struct TokenStorage {
/// @dev Decimals of token
uint8 decimals;
/// @dev Initial supply of token will be mint during init
uint256 initialSupply;
/// @dev Max amount of token allowed per address
uint256 maxTokenAmountPerAddress;
/// @dev Metadata JSON
string metadata;
/// @dev Documentation of the security token
string documentUri;
/// @dev Token configuration
TokenFeatures features;
}
/// @custom:storage-location erc7201:eth.storage.Tax
struct TaxStorage {
/// @dev Tax fee recipient address
address taxAddress;
/// @dev Tax fee BPS(100bps=1%)
uint256 taxBPS;
/// @dev Burn fee BPS(100bps=1%)
uint256 deflationBPS;
}
/// @custom:storage-location erc7201:eth.storage.Auth
struct AuthStorage {
bool authorisedSenderEnabled;
/// @dev Address who can send transaction
mapping(address => bool) authorisedSender;
}
/// @custom:storage-location erc7201:eth.storage.WhiteBlackList
struct WhiteBlackListStorage {
IWhitelistCore whitelistImpl;
IBlacklistCore blacklistImpl;
}
/**
* @dev Modifier to check sender and recipient when transfer
* @param sender - Transfer sender
* @param recipient - Transfer recipient
*/
modifier checkTransfer(address sender, address recipient) {
_checkTransfer(sender, recipient);
_;
}
/// @dev Modifier to check if the token is burnable
modifier whenBurnable() {
if (!isBurnable()) {
revert BurningNotEnabled();
}
_;
}
/// @dev Modifier to check if the token is mintable
modifier whenMintable() {
if (!isMintable()) {
revert MintingNotEnabled();
}
_;
}
function _checkTransfer(address sender, address recipient) private view {
address msgSender = _msgSender();
bool isOwner = msgSender == owner();
// When the current caller is the contract owner and the contract permits forced transfers,
// all transfer requests are released without any whitelist or blacklist checks.
if (isForceTransferAllowed() && isOwner) {
return;
}
if (isBlacklistEnabled()) {
if (_isBlacklisted(sender)) {
revert TransferFromSenderBlacklisted(sender);
}
if (_isBlacklisted(recipient)) {
revert RecipientBlacklisted(recipient);
}
if (sender != msgSender && !isOwner && _isBlacklisted(msgSender)) {
revert TransferFromSenderBlacklisted(msgSender);
}
}
if (isWhitelistEnabled()) {
if (!_isWhitelisted(sender)) {
revert TransferFromSenderNotWhitelisted(sender);
}
if (!_isWhitelisted(recipient)) {
revert RecipientNotWhitelisted(recipient);
}
if (sender != msgSender && !isOwner && !_isWhitelisted(msgSender)) {
revert TransferFromSenderNotWhitelisted(msgSender);
}
}
}
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
/// @dev Initializes the contract
function initialize(
string memory name_,
string memory symbol_,
uint8 decimals_,
uint256 maxSupply_,
uint256 initialSupply_,
address tokenOwner,
ConstructorParams memory params
) public initializer {
if (decimals_ > 18) {
revert InvalidDecimals(decimals_);
}
__ERC20_init(name_, symbol_);
__ERC20Pausable_init();
__ERC20Burnable_init();
__ERC20Capped_init(maxSupply_);
__Ownable_init(tokenOwner);
__UUPSUpgradeable_init();
if (params.isWhitelistEnabled) {
_setWhitelistImpl(params.whitelistImpl);
}
if (params.isBlacklistEnabled) {
_setBlacklistImpl(params.blacklistImpl);
}
_setBlacklistEnabled(params.isBlacklistEnabled);
_setWhitelistEnabled(params.isWhitelistEnabled);
_setVersion("1.0.0", 1);
TaxStorage storage taxStorage = _getTaxStorage();
if (params.isTaxable) {
if (params.taxBPS > MAX_BPS_AMOUNT) {
revert InvalidTaxBPS(params.taxBPS);
}
Helper.checkAddress(params.taxAddress);
taxStorage.taxAddress = params.taxAddress;
taxStorage.taxBPS = params.taxBPS;
}
if (params.isDeflationary) {
if (params.deflationBPS > MAX_BPS_AMOUNT) {
revert InvalidDeflationBPS(params.deflationBPS);
}
taxStorage.deflationBPS = params.deflationBPS;
}
if (params.authorisedSenderEnabled) {
AuthStorage storage authStorage = _getAuthStorage();
authStorage.authorisedSenderEnabled = params.authorisedSenderEnabled;
authStorage.authorisedSender[tokenOwner] = true;
}
TokenStorage storage tokenStorage = _getTokenStorage();
tokenStorage.decimals = decimals_;
tokenStorage.initialSupply = initialSupply_;
tokenStorage.maxTokenAmountPerAddress = params.maxTokenAmountPerAddress;
tokenStorage.metadata = params.metadata;
tokenStorage.documentUri = params.documentUri;
tokenStorage.features = TokenFeatures({
isBurnable: params.isBurnable,
isMintable: params.isMintable,
isPausable: params.isPausable,
isMaxAmountPerAddressSet: params.isMaxAmountPerAddressSet,
isForceTransferAllowed: params.isForceTransferAllowed,
isTaxable: params.isTaxable,
isDeflationary: params.isDeflationary,
authorisedSenderEnabled: params.authorisedSenderEnabled
});
if (initialSupply_ > 0) {
super._mint(tokenOwner, initialSupply_);
}
}
/// @dev Required override for UUPSUpgradeable to authorize upgrades
function _authorizeUpgrade(address newImplementation) internal override onlyOwner whenNotPaused {
// Authorization logic is just requiring the owner
}
/// @inheritdoc IERC165
function supportsInterface(bytes4 interfaceId) public pure override returns (bool) {
return interfaceId == type(IERC165).interfaceId || interfaceId == type(IExternalWhitelistImpl).interfaceId
|| interfaceId == type(IExternalBlacklistImpl).interfaceId
|| interfaceId == type(IWhitelistToggleExtension).interfaceId
|| interfaceId == type(IBlacklistToggleExtension).interfaceId;
}
function version() public view returns (string memory) {
return _getVersionStorage().version;
}
function versionNumber() public view returns (uint256) {
return _getVersionStorage().versionNumber;
}
function getWhitelistImpl() external view returns (address) {
return address(_getWhiteBlackListImplStorage().whitelistImpl);
}
function getBlacklistImpl() external view returns (address) {
return address(_getWhiteBlackListImplStorage().blacklistImpl);
}
/// @notice Set the whitelist implementation
function setWhitelistImpl(IWhitelistCore whitelistImpl_) public onlyOwner {
_setWhitelistImpl(whitelistImpl_);
}
/// @notice Set the blacklist implementation
function setBlacklistImpl(IBlacklistCore blacklistImpl_) public onlyOwner {
_setBlacklistImpl(blacklistImpl_);
}
function _setWhitelistImpl(IWhitelistCore whitelistImpl_) internal {
Helper.checkAddress(address(whitelistImpl_));
_getWhiteBlackListImplStorage().whitelistImpl = whitelistImpl_;
emit WhitelistImplSet(address(whitelistImpl_));
}
function _setBlacklistImpl(IBlacklistCore blacklistImpl_) internal {
Helper.checkAddress(address(blacklistImpl_));
_getWhiteBlackListImplStorage().blacklistImpl = blacklistImpl_;
emit BlacklistImplSet(address(blacklistImpl_));
}
/**
* @dev Return the metadata associated with the contract.
*/
function metadata() public view virtual returns (string memory) {
return _getTokenStorage().metadata;
}
/**
* @dev Sets the metadata associated with the contract.
*/
function setMetadata(string calldata metadata_) public onlyOwner {
_getTokenStorage().metadata = metadata_;
}
/// @dev Return token decimals
function decimals() public view virtual override returns (uint8) {
return _getTokenStorage().decimals;
}
/// @dev Return if the token is burnable
function isBurnable() public view returns (bool) {
return _getTokenStorage().features.isBurnable;
}
/// @dev Return if the token is mintable
function isMintable() public view returns (bool) {
return _getTokenStorage().features.isMintable;
}
/// @dev Return if the token is pausable
function isPausable() public view returns (bool) {
return _getTokenStorage().features.isPausable;
}
/// @dev Return if the token is maxAmountPerAddressSet
function isMaxAmountPerAddressSet() public view returns (bool) {
return _getTokenStorage().features.isMaxAmountPerAddressSet;
}
/// @dev Return if the token is forceTransferAllowed
function isForceTransferAllowed() public view returns (bool) {
return _getTokenStorage().features.isForceTransferAllowed;
}
/// @dev Return if the token is taxable
function isTaxable() public view returns (bool) {
return _getTokenStorage().features.isTaxable;
}
/// @dev Return if the token is deflationary
function isDeflationary() public view returns (bool) {
return _getTokenStorage().features.isDeflationary;
}
/// @dev Return document URI
function documentUri() public view returns (string memory) {
return _getTokenStorage().documentUri;
}
/// @dev Return initial supply
function initialSupply() public view returns (uint256) {
return _getTokenStorage().initialSupply;
}
/// @dev Return max token amount per address
function maxTokenAmountPerAddress() public view returns (uint256) {
return _getTokenStorage().maxTokenAmountPerAddress;
}
/// @dev Return tax address
function taxAddress() public view returns (address) {
return _getTaxStorage().taxAddress;
}
/// @dev Return tax BPS
function taxBPS() public view returns (uint256) {
return _getTaxStorage().taxBPS;
}
/// @dev Return deflation BPS
function deflationBPS() public view returns (uint256) {
return _getTaxStorage().deflationBPS;
}
/// @dev Return authorised sender enabled
function authorisedSenderEnabled() public view returns (bool) {
return _getAuthStorage().authorisedSenderEnabled;
}
/// @dev Return if an address is an authorised sender
function authorisedSender(address account) public view returns (bool) {
return _getAuthStorage().authorisedSender[account];
}
/**
* @dev Authorize the account eligible to send a transaction
* @notice Only the owner can call this function.
* @notice The functions of mint,burn,transfer and transferFrom are all under control.
* @notice Only the owner can call this function.
*
* @param account The target account
* @param authorised The value to authorize or cancel the authorization
*/
function setAuthorisedSender(address account, bool authorised) public onlyOwner {
_getAuthStorage().authorisedSender[account] = authorised;
}
/**
* @dev Allow to mint specific token to an address
* @param to - Address to mint
* @param amount - Amount to mint
* @dev Call onlyOwner & whenNotPaused
*/
function mint(address to, uint256 amount) external onlyOwner whenNotPaused whenMintable {
_checkMaxAmountPerAddress(to, amount);
if (isBlacklistEnabled() && _isBlacklisted(to)) {
revert RecipientBlacklisted(to);
}
if (isWhitelistEnabled() && !_isWhitelisted(to)) {
revert RecipientNotWhitelisted(to);
}
super._mint(to, amount);
}
/// @inheritdoc ERC20BurnableUpgradeable
function burn(uint256 amount) public override onlyOwner whenNotPaused whenBurnable {
super.burn(amount);
}
/// @inheritdoc ERC20BurnableUpgradeable
function burnFrom(address from, uint256 amount) public override onlyOwner whenNotPaused whenBurnable {
super.burnFrom(from, amount);
}
/// @inheritdoc OwnableUpgradeable
function transferOwnership(address newOwner) public override onlyOwner whenNotPaused {
AuthStorage storage authStorage = _getAuthStorage();
authStorage.authorisedSender[super.owner()] = false;
super.transferOwnership(newOwner);
authStorage.authorisedSender[newOwner] = true;
}
/// @inheritdoc OwnableUpgradeable
function renounceOwnership() public override onlyOwner whenNotPaused {
_getAuthStorage().authorisedSender[super.owner()] = false;
super.renounceOwnership();
}
/// @dev Pause the token
/// @dev Call onlyOwner
function pause() external onlyOwner {
if (!isPausable()) {
revert PausingNotEnabled();
}
super._pause();
}
/// @dev Unpause the token
/// @dev Call onlyOwner
function unpause() external onlyOwner {
if (!isPausable()) {
revert PausingNotEnabled();
}
super._unpause();
}
/**
* @dev Set new taxAddress and taxBPS
* @param taxAddress_ - New tax address
* @param taxBPS_ - New tax BPS
* @dev Call onlyOwner & whenNotPaused
*/
function setTaxConfig(address taxAddress_, uint256 taxBPS_) external onlyOwner whenNotPaused {
if (!isTaxable()) {
revert TokenIsNotTaxable();
}
if (taxBPS_ > MAX_BPS_AMOUNT) {
revert InvalidTaxBPS(taxBPS_);
}
Helper.checkAddress(taxAddress_);
TaxStorage storage taxStorage = _getTaxStorage();
taxStorage.taxAddress = taxAddress_;
taxStorage.taxBPS = taxBPS_;
emit TaxConfigSet(taxStorage.taxAddress, taxStorage.taxBPS);
}
/**
* @dev Set new deflation BPS
* @param deflationBPS_ - New deflation BPS
* @dev Call onlyOwner & whenNotPaused
*/
function setDeflationConfig(uint256 deflationBPS_) external onlyOwner whenNotPaused {
if (!isDeflationary()) {
revert TokenIsNotDeflationary();
}
if (deflationBPS_ > MAX_BPS_AMOUNT) {
revert InvalidDeflationBPS(deflationBPS_);
}
_getTaxStorage().deflationBPS = deflationBPS_;
emit DeflationConfigSet(deflationBPS_);
}
/**
* @dev Owner set new document uri
* @param newDocumentUri - New document uri
* @dev Call onlyOwner & whenNotPaused
*/
function setDocumentUri(string memory newDocumentUri) external onlyOwner whenNotPaused {
_getTokenStorage().documentUri = newDocumentUri;
emit DocumentUriSet(newDocumentUri);
}
/**
* @dev Set max token amount per address can hold
* @param newMaxTokenAmountPerAddr - Max token amount per address
* @dev Call onlyOwner & whenNotPaused
*/
function setMaxTokenAmountPerAddress(uint256 newMaxTokenAmountPerAddr) external onlyOwner whenNotPaused {
if (!isMaxAmountPerAddressSet()) {
revert MaxTokenAmountNotAllowed();
}
TokenStorage storage tokenStorage = _getTokenStorage();
if (newMaxTokenAmountPerAddr > tokenStorage.maxTokenAmountPerAddress) {
revert MaxTokenAmountPerAddrLtPrevious();
}
tokenStorage.maxTokenAmountPerAddress = newMaxTokenAmountPerAddr;
emit MaxTokenAmountPerSet(tokenStorage.maxTokenAmountPerAddress);
}
/**
* @dev Transfer specific amount token to address
* @param to - Address to transfer
* @param amount - Transfer amount
*/
function transfer(address to, uint256 amount)
public
virtual
override
whenNotPaused
checkTransfer(_msgSender(), to)
returns (bool)
{
uint256 amountToTransfer = _payFeeWhenTransfer(_msgSender(), to, amount);
return super.transfer(to, amountToTransfer);
}
/**
* @dev Transfer specific amount of token from specific address to another address
* @param from - Transfer sender
* @param to - Transfer recipient
* @param amount - Transfer amount
*/
function transferFrom(address from, address to, uint256 amount)
public
virtual
override
whenNotPaused
checkTransfer(from, to)
returns (bool)
{
uint256 amountToTransfer = _payFeeWhenTransfer(from, to, amount);
// Force transfer
if (isForceTransferAllowed() && _msgSender() == owner()) {
super._transfer(from, to, amountToTransfer);
return true;
}
// Normal transfer
return super.transferFrom(from, to, amountToTransfer);
}
/**
* @dev Batch transfer token to other addresses
* @param toList - Transfer recipient address list
* @param amountList - Transfer amount list
* @dev ToList length must equal to AmountList length
*/
function batchTransfer(address[] memory toList, uint256[] memory amountList) external whenNotPaused {
uint256 len = toList.length;
if (len != amountList.length) {
revert InvalidRecipientAndAmount();
}
for (uint256 i = 0; i < len;) {
transfer(toList[i], amountList[i]);
unchecked {
i++;
}
}
}
/**
* @dev Calculate tax amount during a transfer
* @param sender - Transfer sender
* @param amount - Transfer amount
* @dev If sender is tax address, tax fee is 0
*/
function _taxAmount(address sender, uint256 amount) internal view returns (uint256 taxAmount) {
TaxStorage storage taxStorage = _getTaxStorage();
if (taxStorage.taxBPS > 0 && taxStorage.taxAddress != sender) {
return (amount * taxStorage.taxBPS) / MAX_BPS_AMOUNT;
}
return 0;
}
/**
* @dev Calculate deflation amount during a transfer
* @param amount - Transfer amount
*/
function _deflationAmount(uint256 amount) internal view returns (uint256 deflationAmount) {
uint256 deflationBps = _getTaxStorage().deflationBPS;
if (deflationBps > 0) {
return (amount * deflationBps) / MAX_BPS_AMOUNT;
}
return 0;
}
/**
* @dev See {ERC20-_update}.
*
* Requirements:
*
* - the contract must not be paused.
*/
function _update(address from, address to, uint256 value)
internal
virtual
override(ERC20Upgradeable, ERC20PausableUpgradeable, ERC20CappedUpgradeable)
{
AuthStorage storage authStorage = _getAuthStorage();
if (authStorage.authorisedSenderEnabled && !authStorage.authorisedSender[msg.sender]) {
revert UnAuthorisedSender();
}
super._update(from, to, value);
}
function _payFeeWhenTransfer(address from, address to, uint256 amount) internal returns (uint256) {
address spender = _msgSender();
// transfer fee
uint256 taxAmount = _taxAmount(from, amount);
uint256 deflationAmount = _deflationAmount(amount);
uint256 totalFee = taxAmount + deflationAmount;
uint256 amountToTransfer = amount - totalFee;
// check max amount per address
_checkMaxAmountPerAddress(to, amountToTransfer);
// consume allowance
if (spender != from && totalFee > 0) {
if (spender == owner() && isForceTransferAllowed()) {
// the owner can transfer without consuming allowance
} else {
// consume allowance
super._spendAllowance(from, spender, totalFee);
}
}
if (taxAmount > 0) {
super._transfer(from, _getTaxStorage().taxAddress, taxAmount);
}
if (deflationAmount > 0) {
super._burn(from, deflationAmount);
}
return amountToTransfer;
}
function _checkMaxAmountPerAddress(address to, uint256 amount) private view {
if (!isMaxAmountPerAddressSet()) {
return;
}
uint256 newAmount = balanceOf(to) + amount;
if (newAmount > _getTokenStorage().maxTokenAmountPerAddress) {
revert AddrBalanceExceedsMaxAllowed(to, newAmount);
}
}
function _setVersion(string memory _version, uint256 _versionNumber) internal {
VersionStorage storage versionStorage = _getVersionStorage();
versionStorage.version = _version;
versionStorage.versionNumber = _versionNumber;
}
function _isBlacklisted(address account) internal view virtual returns (bool) {
return _getWhiteBlackListImplStorage().blacklistImpl.isBlacklisted(account);
}
function _isWhitelisted(address account) internal view virtual returns (bool) {
return _getWhiteBlackListImplStorage().whitelistImpl.isWhitelisted(account);
}
// keccak256(abi.encode(uint256(keccak256("eth.storage.TokenConfig")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant TOKEN_STORAGE_LOCATION = 0x991d6ea3473fe20e877a241113b2bce49c7e025de5dbfb0e3d00b028b2393300;
// keccak256(abi.encode(uint256(keccak256("eth.storage.Tax")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant TAX_STORAGE_LOCATION = 0xed0de5778b259e2ad13f1d53573886a54e2f55f2ff8fab9b01c423473e35eb00;
// keccak256(abi.encode(uint256(keccak256("eth.storage.Auth")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant AUTH_STORAGE_LOCATION = 0x6254167639327698ff0392879fa34e9dff2989d4d94472ebecc5f9bd4f18e100;
// keccak256(abi.encode(uint256(keccak256("eth.storage.Version")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant VERSION_STORAGE_LOCATION =
0x5b6c8744113e961e644258515e7c2428983fc9a9e82560c5677b16c450267b00;
// keccak256(abi.encode(uint256(keccak256("eth.storage.WhitelistToggle")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant WHITELIST_TOGGLE_STORAGE_LOCATION =
0x4f1ed6cd17d17a8946879cb81c313524571ec7e8cb7243a13f809e8359599400;
// keccak256(abi.encode(uint256(keccak256("eth.storage.BlacklistToggle")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant BLACKLIST_TOGGLE_STORAGE_LOCATION =
0x778e05615efcdbad2facfd2b7feee531e044d5c545ff533a78db22beb989bf00;
// keccak256(abi.encode(uint256(keccak256("eth.storage.WhiteBlackListImpl")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant WHITE_BLACK_LIST_IMPL_STORAGE_LOCATION =
0xdbc323087f5f9655ab28eebc9cfc3f6f6fcbcb06a62b34b1f948e358e6a04e00;
function _getWhitelistToggleStorage() internal view virtual override returns (WhitelistToggleStorage storage $) {
assembly {
$.slot := WHITELIST_TOGGLE_STORAGE_LOCATION
}
}
function _getBlacklistToggleStorage() internal view virtual override returns (BlacklistToggleStorage storage $) {
assembly {
$.slot := BLACKLIST_TOGGLE_STORAGE_LOCATION
}
}
function _getTokenStorage() internal pure returns (TokenStorage storage $) {
assembly {
$.slot := TOKEN_STORAGE_LOCATION
}
}
function _getTaxStorage() internal pure returns (TaxStorage storage $) {
assembly {
$.slot := TAX_STORAGE_LOCATION
}
}
function _getAuthStorage() internal pure returns (AuthStorage storage $) {
assembly {
$.slot := AUTH_STORAGE_LOCATION
}
}
function _getVersionStorage() internal pure returns (VersionStorage storage $) {
assembly {
$.slot := VERSION_STORAGE_LOCATION
}
}
function _getWhiteBlackListImplStorage() internal pure returns (WhiteBlackListStorage storage $) {
assembly {
$.slot := WHITE_BLACK_LIST_IMPL_STORAGE_LOCATION
}
}
}// SPDX-License-Identifier: MIT
// solhint-disable-next-line one-contract-per-file
pragma solidity ^0.8.20;
interface IExternalWhitelistImpl {
function getWhitelistImpl() external view returns (address);
}
interface IExternalBlacklistImpl {
function getBlacklistImpl() external view returns (address);
}// SPDX-License-Identifier: MIT
// solhint-disable-next-line one-contract-per-file
pragma solidity ^0.8.20;
/// @title Blacklist Core Interface
/// @notice Gas-efficient blacklist management with batch operations
interface IBlacklistCore {
/// @dev Emit when an address add in blacklist
event Blacklisted(address indexed account);
/// @dev Emit when an address remove from blacklist
event UnBlacklisted(address indexed account);
/// @notice Checks if address is blacklisted (O(1) lookup)
/// @param account Address to check
function isBlacklisted(address account) external view returns (bool);
/// @notice Batch check blacklist status (gas optimized)
/// @param addresses Array of addresses to check
function areBlacklisted(address[] calldata addresses) external view returns (bool[] memory);
/// @notice Add single address to blacklist
/// @dev Emits BlacklistAdded event
/// @param account Address to add
function addToBlacklist(address account) external;
/// @notice Batch add addresses
/// @param addresses Addresses to add
function batchAddToBlacklist(address[] calldata addresses) external;
/// @notice Remove single address
/// @dev Emits BlacklistRemoved event
/// @param account Address to remove
function removeFromBlacklist(address account) external;
/// @notice Batch remove addresses
/// @param addresses Addresses to remove
function batchRemoveFromBlacklist(address[] calldata addresses) external;
/// @notice Atomic add+remove operation
/// @param addressesToAdd Addresses to add
/// @param addressesToRemove Addresses to remove
function updateBlacklist(
address[] calldata addressesToAdd,
address[] calldata addressesToRemove
) external;
}
/// @title Interface for blacklist address queries
interface IBlacklistQueryExtension {
/// @notice Get all blacklisted addresses
/// @return addresses Array of all blacklisted addresses
/// @dev Warning: This may consume unbounded gas if the list is large
function blacklistedAddresses() external view returns (address[] memory addresses);
/// @notice Get paginated blacklisted addresses
/// @param offset Number of addresses to skip (0-based index)
/// @param limit Maximum number of addresses to return
/// @return addresses Array of blacklisted addresses
/// @dev Recommended for large blacklists to avoid gas limit issues
function blacklistedAddressesPaginated(uint256 offset, uint256 limit) external view returns (address[] memory addresses);
/// @notice Get the total number of blacklisted addresses
/// @return count The total count of addresses in the blacklist
/// @dev This function provides an efficient way to determine the size of the blacklist
function blacklistedAddressCount() external view returns (uint256 count);
}
/// @title Blacklist Toggle Interface
interface IBlacklistToggleExtension {
/// @notice Returns blacklist enforcement status
/// @dev When disabled, blacklist checks are bypassed
/// @return True if blacklist enforcement is active
function isBlacklistEnabled() external view returns (bool);
}// SPDX-License-Identifier: MIT
// solhint-disable-next-line one-contract-per-file
pragma solidity ^0.8.20;
/// @title Whitelist Core Interface
/// @notice Gas-efficient whitelist management with batch operations
interface IWhitelistCore {
/// @dev Emit when an address add in whitelist
event Whitelisted(address indexed account);
/// @dev Emit when an address remove from whitelist
event UnWhitelisted(address indexed account);
/// @notice Checks if address is whitelisted (O(1) lookup)
/// @param account Address to check
function isWhitelisted(address account) external view returns (bool);
/// @notice Batch check whitelist status (gas optimized)
/// @param addresses Array of addresses to check
function areWhitelisted(address[] calldata addresses) external view returns (bool[] memory);
/// @notice Add single address to whitelist
/// @dev Emits WhitelistAdded event
/// @param account Address to add
function addToWhitelist(address account) external;
/// @notice Batch add addresses
/// @param addresses Addresses to add
function batchAddToWhitelist(address[] calldata addresses) external;
/// @notice Remove single address
/// @dev Emits WhitelistRemoved event
/// @param account Address to remove
function removeFromWhitelist(address account) external;
/// @notice Batch remove addresses
/// @param addresses Addresses to remove
function batchRemoveFromWhitelist(address[] calldata addresses) external;
/// @notice Atomic add+remove operation
/// @param addressesToAdd Addresses to add
/// @param addressesToRemove Addresses to remove
function updateWhitelist(
address[] calldata addressesToAdd,
address[] calldata addressesToRemove
) external;
}
/// @title Interface for whitelist address queries
interface IWhitelistQueryExtension {
/// @notice Get all whitelisted addresses
/// @return addresses Array of all whitelisted addresses
/// @dev Warning: This may consume unbounded gas if the list is large
function whitelistedAddresses() external view returns (address[] memory addresses);
/// @notice Get paginated whitelisted addresses
/// @param offset Number of addresses to skip (0-based index)
/// @param limit Maximum number of addresses to return
/// @return addresses Array of whitelisted addresses
/// @dev Recommended for large whitelists to avoid gas limit issues
function whitelistedAddressesPaginated(uint256 offset, uint256 limit) external view returns (address[] memory addresses);
/// @notice Get the total number of whitelisted addresses
/// @return count The total count of addresses in the whitelist
/// @dev This function provides an efficient way to determine the size of the whitelist
function whitelistedAddressCount() external view returns (uint256 count);
}
interface IWhitelistToggleExtension {
/// @notice Returns whitelist enforcement status
/// @dev When disabled, whitelist checks are bypassed
/// @return True if whitelist enforcement is active
function isWhitelistEnabled() external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
library CommonErrors {
error ExceedsMaximumAmount(uint256 provided, uint256 maxAllowed);
/// @dev Raised if blacklist not enabled
error Blacklistable__BlacklistNotEnabled();
/// @dev Raised if whitelist not enabled
error Whitelistable__WhitelistNotEnabled();
}
/// @title AddressListLib
/// @dev Provides generic functionality for managing address lists, usable for blacklists, whitelists, etc.
library AddressListLib {
struct AddressList {
/// @notice array holding all addresses in the list
address[] addresses;
/// @notice Mapping of account inclusion status
mapping(address => bool) isIncluded;
/// @notice Mapping of account index in addresses array
mapping(address => uint256) index;
}
/// @dev Get the number of addresses in the list
/// @param list The address list
/// @return count The number of addresses in the list
function count(AddressList storage list) internal view returns (uint256) {
return list.addresses.length;
}
/// @dev Get all addresses in the list
/// @param list The address list
/// @return addresses Array of all addresses in the list
function getList(AddressList storage list) internal view returns (address[] memory) {
return list.addresses;
}
/// @dev Get paginated addresses from the list
/// @param list The address list
/// @param offset Starting position in the list
/// @param limit Maximum number of addresses to return
/// @return addresses Paginated array of addresses
function getListPaginated(AddressList storage list, uint256 offset, uint256 limit)
internal
view
returns (address[] memory)
{
address[] storage addresses = list.addresses;
uint256 len = addresses.length;
if (offset >= len) {
return new address[](0);
}
uint256 remaining = len - offset;
uint256 length = remaining < limit ? remaining : limit;
uint256 start = offset;
address[] memory results = new address[](length);
for (uint256 i = 0; i < length;) {
results[i] = addresses[start++];
unchecked {
i++;
}
}
return results;
}
/// @dev Check if an address is in the list
/// @param list The address list
/// @param account The address to check
/// @return bool Whether the address is in the list
function isInList(AddressList storage list, address account) internal view returns (bool) {
return list.isIncluded[account];
}
/// @dev Check if multiple addresses are in the list
/// @param list The address list
/// @param addresses Array of addresses to check
/// @return results Array of booleans indicating whether each address is in the list
function areInList(AddressList storage list, address[] memory addresses) internal view returns (bool[] memory) {
mapping(address => bool) storage isIncluded = list.isIncluded;
uint256 len = addresses.length;
bool[] memory results = new bool[](len);
for (uint256 i = 0; i < len;) {
results[i] = isIncluded[addresses[i]];
unchecked {
i++;
}
}
return results;
}
/// @dev Add an address to the list
/// @param list The address list
/// @param account Address to add
/// @return success Whether the operation was successful
function addToList(AddressList storage list, address account) internal returns (bool) {
mapping(address => bool) storage isIncluded = list.isIncluded;
if (isIncluded[account]) return false;
address[] storage addresses = list.addresses;
uint256 len = addresses.length;
addresses.push(account);
isIncluded[account] = true;
list.index[account] = len; // The index is the position before pushing, which becomes the new element's index
return true;
}
/// @dev Remove an address from the list
/// @param list The address list
/// @param account Address to remove
/// @return success Whether the operation was successful
function removeFromList(AddressList storage list, address account) internal returns (bool) {
mapping(address => bool) storage isIncluded = list.isIncluded;
if (!isIncluded[account]) return false;
address[] storage addresses = list.addresses;
mapping(address => uint256) storage indexMapping = list.index;
// Get the index of the address to remove
uint256 index = indexMapping[account];
uint256 lastIndex = addresses.length - 1;
if (index != lastIndex) {
// Swap-and-pop
address lastAddress = addresses[lastIndex];
addresses[index] = lastAddress;
indexMapping[lastAddress] = index;
}
addresses.pop();
delete isIncluded[account];
delete indexMapping[account];
return true;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
library Helper {
/// @dev Raised if an address is zero
error ZeroAddress();
/// @dev Raised if a value is zero
error ZeroValue();
/**
* @notice Check if an address is a zero address
* @dev If address is zero, raised error
* @param addr - Address to check
*/
function checkAddress(address addr) internal pure {
if (addr == address(0)) {
revert ZeroAddress();
}
}
/**
* @notice Check if a value is greater than zero
* @dev If value is zero, raised error
* @param value - Value to check
*/
function checkValue(uint256 value) internal pure {
if (value == 0) {
revert ZeroValue();
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "../interfaces/IBlacklistable.sol";
import "../interfaces/IWhitelistable.sol";
library InterfaceIds {
function isIWhitelistV1(bytes4 id) internal pure returns (bool) {
return type(IWhitelistCore).interfaceId ^ type(IWhitelistQueryExtension).interfaceId ^ type(IWhitelistToggleExtension).interfaceId == id;
}
function isBlacklistV1(bytes4 id) internal pure returns (bool) {
return type(IBlacklistCore).interfaceId ^ type(IBlacklistQueryExtension).interfaceId ^ type(IBlacklistToggleExtension).interfaceId == id;
}
}// SPDX-License-Identifier: MIT
pragma solidity ~0.8.20;
import {WhitelistableV1Upgradeable} from "./extensions/WhitelistableV1Upgradeable.sol";
import {BlacklistableV1Upgradeable} from "./extensions/BlacklistableV1Upgradeable.sol";
import {AccessControlUpgradeable} from "./acl/AccessControlUpgradeable.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {ContextUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import {Context} from "@openzeppelin/contracts/utils/Context.sol";
import {Multicall} from "./extensions/Multicall.sol";
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {IWhitelistCore, IWhitelistQueryExtension} from "./interfaces/IWhitelistable.sol";
import {IBlacklistCore, IBlacklistQueryExtension} from "./interfaces/IBlacklistable.sol";
contract WhiteBlackList is
Multicall,
OwnableUpgradeable,
UUPSUpgradeable,
WhitelistableV1Upgradeable,
BlacklistableV1Upgradeable,
AccessControlUpgradeable,
IERC165
{
/// @dev allow to manage whitelist and blacklist
bytes32 public constant BLACKWHITELIST_ROLE = keccak256("BLACKWHITELIST_ROLE");
// keccak256(abi.encode(uint256(keccak256("eth.storage.Version")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant VERSION_STORAGE_LOCATION =
0x5b6c8744113e961e644258515e7c2428983fc9a9e82560c5677b16c450267b00;
/// @custom:storage-location erc7201:eth.storage.Version
struct VersionStorage {
uint256 versionNumber;
string version;
}
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
function initialize(address owner) public initializer {
__Ownable_init(owner);
__UUPSUpgradeable_init();
__WhitelistableV1_init();
__BlacklistableV1_init();
__AccessControl_init();
_setVersion("1.0.0", 1);
}
/// @inheritdoc IERC165
function supportsInterface(bytes4 interfaceId) public pure override returns (bool) {
return interfaceId == type(IERC165).interfaceId || interfaceId == type(IWhitelistCore).interfaceId
|| interfaceId == type(IBlacklistCore).interfaceId || interfaceId == type(IWhitelistQueryExtension).interfaceId
|| interfaceId == type(IBlacklistQueryExtension).interfaceId;
}
/// @dev Required override for UUPSUpgradeable to authorize upgrades
function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
function _validateWhitelistController() internal view virtual override onlyRole(BLACKWHITELIST_ROLE) {}
function _validateBlacklistController() internal view virtual override onlyRole(BLACKWHITELIST_ROLE) {}
function _isOwner(address account) internal view virtual override returns (bool) {
return account == owner();
}
function version() public view returns (string memory) {
return _getVersionStorage().version;
}
function versionNumber() public view returns (uint256) {
return _getVersionStorage().versionNumber;
}
function _msgSender() internal view virtual override(ContextUpgradeable, Context) returns (address) {
return ContextUpgradeable._msgSender();
}
function _msgData() internal view virtual override(ContextUpgradeable, Context) returns (bytes calldata) {
return ContextUpgradeable._msgData();
}
function _contextSuffixLength() internal view virtual override(ContextUpgradeable, Context) returns (uint256) {
return ContextUpgradeable._contextSuffixLength();
}
function _getVersionStorage() internal pure returns (VersionStorage storage $) {
assembly {
$.slot := VERSION_STORAGE_LOCATION
}
}
function _setVersion(string memory _version, uint256 _versionNumber) internal {
VersionStorage storage versionStorage = _getVersionStorage();
versionStorage.version = _version;
versionStorage.versionNumber = _versionNumber;
}
}{
"optimizer": {
"enabled": true,
"runs": 1337
},
"evmVersion": "paris",
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"implementation","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"implementation","type":"address"}],"name":"ERC1967InvalidImplementation","type":"error"},{"inputs":[],"name":"ERC1967NonPayable","type":"error"},{"inputs":[],"name":"FailedCall","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"}]Contract Creation Code
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
Deployed Bytecode
0x6080604052600a600c565b005b60186014601a565b605e565b565b600060597f360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc5473ffffffffffffffffffffffffffffffffffffffff1690565b905090565b3660008037600080366000845af43d6000803e808015607c573d6000f35b3d6000fdfea26469706673582212209e86ed1b0b9682c044266cd4d16db54862b49929477e25913bd4657fbe811c0164736f6c634300081c0033
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : implementation (address): 0x29eD41CB1013A4dF63d87b82346B384847dB7511
Arg [1] : _data (bytes): 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
-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 00000000000000000000000029ed41cb1013a4df63d87b82346b384847db7511
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000144
Arg [3] : 34de7a8300000000000000000000000000000000000000000000000000000000
Arg [4] : 000000c000000000000000000000000000000000000000000000000000000000
Arg [5] : 0000010000000000000000000000000000000000000000000000000000000000
Arg [6] : 00000008000000000000000000000000d173e69192b9ff22069aa913ef6e6e94
Arg [7] : b19f077800000000000000000000000000000000000000000000000000000000
Arg [8] : 00000001000000000000000000000000d173e69192b9ff22069aa913ef6e6e94
Arg [9] : b19f077800000000000000000000000000000000000000000000000000000000
Arg [10] : 00000008476f6c645a6970200000000000000000000000000000000000000000
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [12] : 0000000358475a00000000000000000000000000000000000000000000000000
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000000
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