Contract Name:
BleverFactory
Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/Clones.sol)
pragma solidity ^0.8.20;
/**
* @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
* deploying minimal proxy contracts, also known as "clones".
*
* > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
* > a minimal bytecode implementation that delegates all calls to a known, fixed address.
*
* The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
* (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
* deterministic method.
*/
library Clones {
/**
* @dev A clone instance deployment failed.
*/
error ERC1167FailedCreateClone();
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create opcode, which should never revert.
*/
function clone(address implementation) internal returns (address instance) {
/// @solidity memory-safe-assembly
assembly {
// Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
// of the `implementation` address with the bytecode before the address.
mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
// Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
instance := create(0, 0x09, 0x37)
}
if (instance == address(0)) {
revert ERC1167FailedCreateClone();
}
}
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create2 opcode and a `salt` to deterministically deploy
* the clone. Using the same `implementation` and `salt` multiple time will revert, since
* the clones cannot be deployed twice at the same address.
*/
function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
/// @solidity memory-safe-assembly
assembly {
// Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
// of the `implementation` address with the bytecode before the address.
mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
// Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
instance := create2(0, 0x09, 0x37, salt)
}
if (instance == address(0)) {
revert ERC1167FailedCreateClone();
}
}
/**
* @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
*/
function predictDeterministicAddress(
address implementation,
bytes32 salt,
address deployer
) internal pure returns (address predicted) {
/// @solidity memory-safe-assembly
assembly {
let ptr := mload(0x40)
mstore(add(ptr, 0x38), deployer)
mstore(add(ptr, 0x24), 0x5af43d82803e903d91602b57fd5bf3ff)
mstore(add(ptr, 0x14), implementation)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73)
mstore(add(ptr, 0x58), salt)
mstore(add(ptr, 0x78), keccak256(add(ptr, 0x0c), 0x37))
predicted := keccak256(add(ptr, 0x43), 0x55)
}
}
/**
* @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
*/
function predictDeterministicAddress(
address implementation,
bytes32 salt
) internal view returns (address predicted) {
return predictDeterministicAddress(implementation, salt, address(this));
}
}
// 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
pragma solidity 0.8.28;
import "@openzeppelin/contracts/access/Ownable.sol";
contract OperatedOwnable is Ownable {
// Mapping to store multiple operators
mapping(address => bool) private _operators;
// Events to track operator changes
event OperatorAdded(address indexed operator);
event OperatorRemoved(address indexed operator);
event OperatorTransferred(
address indexed previousOperator,
address indexed newOperator
);
// Modifier to restrict access to only operators
modifier onlyOperator() {
require(
isOperator(msg.sender),
"OperatorManager: caller is not an operator"
);
_;
}
// Constructor to set the owner and operator
constructor(address owner, address operator) Ownable(owner) {
require(
operator != address(0),
"OperatorManager: operator is the zero address"
);
_operators[operator] = true;
}
// Function to check if an address is an operator
function isOperator(address account) public view returns (bool) {
return _operators[account];
}
// Function to allow the owner to add a new operator
function addOperator(address operator) public onlyOwner {
require(
operator != address(0),
"OperatorManager: operator is the zero address"
);
require(
!_operators[operator],
"OperatorManager: operator already exists"
);
_operators[operator] = true;
emit OperatorAdded(operator);
}
// Function to allow the owner to remove an operator
function removeOperator(address operator) public onlyOwner {
require(
_operators[operator],
"OperatorManager: operator does not exist"
);
_operators[operator] = false;
emit OperatorRemoved(operator);
}
// Function to renounce operator status (called by the operator themselves)
function renounceOperator() public onlyOperator {
_operators[msg.sender] = false;
emit OperatorRemoved(msg.sender);
}
// Function to transfer the operator role by the current operator
function transferOperator(address newOperator) public onlyOperator {
require(
newOperator != address(0),
"OperatorManager: new operator is the zero address"
);
emit OperatorTransferred(msg.sender, newOperator);
_operators[msg.sender] = false;
_operators[newOperator] = true;
}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
import "@openzeppelin/contracts/proxy/Clones.sol";
import "./auth/OperatedOwnable.sol";
import "./utils/Versioning.sol";
contract BleverFactory is OperatedOwnable, Versioning {
// Event emitted when a clone is created
event CloneCreated(address address_);
// Set the owner of the contract
constructor(
address owner,
address operator
) OperatedOwnable(owner, operator) {
_setVersion("1.0.0");
}
// Create a clone of the implementation contract
function clone(
address _implementation,
bytes memory _initData
) external onlyOperator returns (address address_) {
// Clone the implementation contract
address_ = Clones.clone(_implementation);
// Initialize the clone
(bool success, ) = address_.call(_initData);
require(success, "BleverFactory: failed to initialize clone");
// Emit an event
emit CloneCreated(address_);
}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
abstract contract Versioning {
// The version of the contract
string public version;
constructor() {}
// Set the version of the contract
function _setVersion(string memory _version) internal {
version = _version;
}
}