Overview
ETH Balance
0 ETH
ETH Value
$0.00More Info
Private Name Tags
ContractCreator
| Transaction Hash |
Method
|
Block
|
From
|
To
|
|||||
|---|---|---|---|---|---|---|---|---|---|
Latest 1 internal transaction
| Parent Transaction Hash | Block | From | To | |||
|---|---|---|---|---|---|---|
| 551671 | 26 days ago | Contract Creation | 0 ETH |
Loading...
Loading
This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Contract Name:
FeeCollectorFactory
Compiler Version
v0.8.19+commit.7dd6d404
ZkSolc Version
v1.5.7
Contract Source Code (Solidity)
/** *Submitted for verification at abscan.org on 2025-02-01 */ // Sources flattened with hardhat v2.19.5 https://hardhat.org // SPDX-License-Identifier: BUSL-1.1 AND MIT // File @openzeppelin/contracts/utils/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @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; } } // File @openzeppelin/contracts/access/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; /** * @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. * * By default, the owner account will be the one that deploys the contract. 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; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @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 { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @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 { require(newOwner != address(0), "Ownable: new owner is the zero address"); _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); } } // File @openzeppelin/contracts/access/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ abstract contract Ownable2Step is Ownable { address private _pendingOwner; event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() public virtual { address sender = _msgSender(); require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner"); _transferOwnership(sender); } } // File @openzeppelin/contracts/security/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; /** * @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 Pausable is Context { /** * @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); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @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(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } } // File @openzeppelin/contracts/token/ERC20/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ 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 amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ 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); } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); } // File @openzeppelin/contracts/utils/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @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, it is bubbled up by this * function (like regular Solidity function calls). * * 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. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @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`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } // File @openzeppelin/contracts/token/ERC20/utils/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } } // File @openzeppelin/contracts/security/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == _ENTERED; } } // File contracts/bases/ArcBase.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; /** * Provides set of properties, functions, and modifiers to help with * security and access control of extending contracts */ contract ArcBase is Ownable2Step, Pausable, ReentrancyGuard { function pause() public onlyOwner { _pause(); } function unpause() public onlyOwner { _unpause(); } function withdrawNative(address beneficiary) public onlyOwner { uint256 amount = address(this).balance; (bool sent, ) = beneficiary.call{value: amount}(""); require(sent, 'Unable to withdraw'); } function withdrawToken(address beneficiary, address token) public onlyOwner { uint256 amount = IERC20(token).balanceOf(address(this)); IERC20(token).transfer(beneficiary, amount); } } // File contracts/interfaces/IArc.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; interface IArc { function approve(address _spender, uint _value) external returns (bool); function burn(uint amount) external; function mint(address account, uint amount) external; function transfer(address, uint) external returns (bool); function transferFrom(address _from, address _to, uint _value) external; } // File contracts/interfaces/IRainbowRoad.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; interface IRainbowRoad { function acceptTeam() external; function actionHandlers(string calldata action) external view returns (address); function arc() external view returns (IArc); function blockToken(address tokenAddress) external; function disableFeeManager(address feeManager) external; function disableOpenTokenWhitelisting() external; function disableReceiver(address receiver) external; function disableSender(address sender) external; function disableSendFeeBurn() external; function disableSendFeeCharge() external; function disableWhitelistingFeeBurn() external; function disableWhitelistingFeeCharge() external; function enableFeeManager(address feeManager) external; function enableOpenTokenWhitelisting() external; function enableReceiver(address receiver) external; function enableSendFeeBurn() external; function enableSender(address sender) external; function enableSendFeeCharge() external; function enableWhitelistingFeeBurn() external; function enableWhitelistingFeeCharge() external; function sendFee() external view returns (uint256); function whitelistingFee() external view returns (uint256); function chargeSendFee() external view returns (bool); function chargeWhitelistingFee() external view returns (bool); function burnSendFee() external view returns (bool); function burnWhitelistingFee() external view returns (bool); function openTokenWhitelisting() external view returns (bool); function config(string calldata configName) external view returns (bytes memory); function blockedTokens(address tokenAddress) external view returns (bool); function feeManagers(address feeManager) external view returns (bool); function receiveAction(string calldata action, address to, bytes calldata payload) external; function sendAction(string calldata action, address from, bytes calldata payload) external; function setActionHandler(string memory action, address handler) external; function setArc(address _arc) external; function setSendFee(uint256 _fee) external; function setTeam(address _team) external; function setTeamRate(uint256 _teamRate) external; function setToken(string calldata tokenSymbol, address tokenAddress) external; function setWhitelistingFee(uint256 _fee) external; function team() external view returns (address); function teamRate() external view returns (uint256); function tokens(string calldata tokenSymbol) external view returns (address); function MAX_TEAM_RATE() external view returns (uint256); function receivers(address receiver) external view returns (bool); function senders(address sender) external view returns (bool); function unblockToken(address tokenAddress) external; function whitelist(address tokenAddress) external; } // File contracts/bases/ArcBaseWithRainbowRoad.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; /** * Extends the ArcBase contract to provide * for interactions with the Rainbow Road */ contract ArcBaseWithRainbowRoad is ArcBase { IRainbowRoad public rainbowRoad; constructor(address _rainbowRoad) { require(_rainbowRoad != address(0), 'Rainbow Road cannot be zero address'); rainbowRoad = IRainbowRoad(_rainbowRoad); } function setRainbowRoad(address _rainbowRoad) external onlyOwner { require(_rainbowRoad != address(0), 'Rainbow Road cannot be zero address'); rainbowRoad = IRainbowRoad(_rainbowRoad); } /// @dev Only calls from the Rainbow Road are accepted. modifier onlyRainbowRoad() { require(msg.sender == address(rainbowRoad), 'Must be called by Rainbow Road'); _; } } // File @openzeppelin/contracts/utils/math/[email protected] // Original license: SPDX_License_Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } } // File contracts/interfaces/IFeeCollector.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; interface IFeeCollector { function balanceLockExpires(address account) external view returns (uint); function balanceOf(address account) external returns (uint); function deposit(address account, uint amount) external; function earned(address token, address account) external view returns (uint); function getEpochStart(uint timestamp) external pure returns (uint); function getReward(address[] memory tokens) external; function isBalanceLockExpired(address account) external view returns (bool); function left(address token) external view returns (uint); function notifyRewardAmount(address token, uint amount) external; function withdraw(address account, uint amount) external; } // File contracts/FeeCollector.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; // FeeCollectors pay out rewards for a given token based on the deposits that were received from the users contract FeeCollector is ArcBaseWithRainbowRoad, IFeeCollector { using SafeERC20 for IERC20; address public authorized; uint internal constant WEEK = 1 weeks; uint public constant DURATION = 7 days; // rewards are released every 7 days uint public constant PRECISION = 10 ** 18; uint public constant MAX_REWARD_TOKENS = 16; // max number of reward tokens that can be added uint public totalSupply; mapping(address => uint) public balanceOf; mapping(address => uint) public balanceLockExpires; mapping(address => mapping(uint => uint)) public tokenRewardsPerEpoch; mapping(address => uint) public periodFinish; mapping(address => mapping(address => uint)) public lastEarn; address[] public rewards; mapping(address => bool) public isReward; /// @notice A checkpoint for marking balance struct Checkpoint { uint timestamp; uint balanceOf; } /// @notice A checkpoint for marking supply struct SupplyCheckpoint { uint timestamp; uint supply; } /// @notice A record of balance checkpoints for each account, by index mapping (address => mapping (uint => Checkpoint)) public checkpoints; /// @notice The number of checkpoints for each account mapping (address => uint) public numCheckpoints; /// @notice A record of balance checkpoints for each token, by index mapping (uint => SupplyCheckpoint) public supplyCheckpoints; /// @notice The number of checkpoints uint public supplyNumCheckpoints; event Deposit(address indexed from, address account, uint amount); event Withdraw(address indexed from, address account, uint amount); event NotifyReward(address indexed from, address indexed reward, uint epoch, uint amount); event ClaimRewards(address indexed from, address indexed reward, uint amount); constructor(address _rainbowRoad, address _authorizedAccount) ArcBaseWithRainbowRoad(_rainbowRoad) { require(_authorizedAccount != address(0), 'Authorized account cannot be zero address'); authorized = _authorizedAccount; _transferOwnership(rainbowRoad.team()); } function setAuthorized(address _authorizedAccount) external onlyOwner { require(_authorizedAccount != address(0), 'Authorized account cannot be zero address'); authorized = _authorizedAccount; } function _feeStart(uint timestamp) internal pure returns (uint) { return timestamp - (timestamp % (DURATION)); } function getEpochStart(uint timestamp) public pure returns (uint) { uint feeStart = _feeStart(timestamp); uint feeEnd = feeStart + DURATION; return timestamp < feeEnd ? feeStart : feeStart + DURATION; } /// @dev Returns true if the balance is unlocked, false if locked. /// @param account The owner of the balance. function isBalanceLockExpired(address account) external view returns (bool) { return _isBalanceLockExpired(account); } /// @dev Returns true if the balance is unlocked, false if locked. /// @param account The owner of the balance. function _isBalanceLockExpired(address account) internal view returns (bool) { return balanceLockExpires[account] < block.timestamp; } /** * @notice Determine the prior balance for an account as of a block number * @dev Block number must be a finalized block or else this function will revert to prevent misinformation. * @param account The address of the account to check * @param timestamp The timestamp to get the balance at * @return The balance the account had as of the given block */ function getPriorBalanceIndex(address account, uint timestamp) public view returns (uint) { uint nCheckpoints = numCheckpoints[account]; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (checkpoints[account][nCheckpoints - 1].timestamp <= timestamp) { return (nCheckpoints - 1); } // Next check implicit zero balance if (checkpoints[account][0].timestamp > timestamp) { return 0; } uint lower = 0; uint upper = nCheckpoints - 1; while (upper > lower) { uint center = upper - (upper - lower) / 2; // ceil, avoiding overflow Checkpoint memory cp = checkpoints[account][center]; if (cp.timestamp == timestamp) { return center; } else if (cp.timestamp < timestamp) { lower = center; } else { upper = center - 1; } } return lower; } function getPriorSupplyIndex(uint timestamp) public view returns (uint) { uint nCheckpoints = supplyNumCheckpoints; if (nCheckpoints == 0) { return 0; } // First check most recent balance if (supplyCheckpoints[nCheckpoints - 1].timestamp <= timestamp) { return (nCheckpoints - 1); } // Next check implicit zero balance if (supplyCheckpoints[0].timestamp > timestamp) { return 0; } uint lower = 0; uint upper = nCheckpoints - 1; while (upper > lower) { uint center = upper - (upper - lower) / 2; // ceil, avoiding overflow SupplyCheckpoint memory cp = supplyCheckpoints[center]; if (cp.timestamp == timestamp) { return center; } else if (cp.timestamp < timestamp) { lower = center; } else { upper = center - 1; } } return lower; } function _writeCheckpoint(address account, uint balance) internal { uint _timestamp = block.timestamp; uint _nCheckPoints = numCheckpoints[account]; if (_nCheckPoints > 0 && checkpoints[account][_nCheckPoints - 1].timestamp == _timestamp) { checkpoints[account][_nCheckPoints - 1].balanceOf = balance; } else { checkpoints[account][_nCheckPoints] = Checkpoint(_timestamp, balance); numCheckpoints[account] = _nCheckPoints + 1; } } function _writeSupplyCheckpoint() internal { uint _nCheckPoints = supplyNumCheckpoints; uint _timestamp = block.timestamp; if (_nCheckPoints > 0 && supplyCheckpoints[_nCheckPoints - 1].timestamp == _timestamp) { supplyCheckpoints[_nCheckPoints - 1].supply = totalSupply; } else { supplyCheckpoints[_nCheckPoints] = SupplyCheckpoint(_timestamp, totalSupply); supplyNumCheckpoints = _nCheckPoints + 1; } } function rewardsListLength() external view returns (uint) { return rewards.length; } // returns the last time the reward was modified or periodFinish if the reward has ended function lastTimeRewardApplicable(address token) public view returns (uint) { return Math.min(block.timestamp, periodFinish[token]); } // allows a user to claim rewards for a given token function getReward(address[] memory tokens) external nonReentrant { for (uint i = 0; i < tokens.length; i++) { uint _reward = earned(tokens[i], msg.sender); lastEarn[tokens[i]][msg.sender] = block.timestamp; if (_reward > 0) IERC20(tokens[i]).safeTransfer(msg.sender, _reward); emit ClaimRewards(msg.sender, tokens[i], _reward); } } function earned(address token, address account) public view returns (uint) { if (numCheckpoints[account] == 0) { return 0; } uint reward = 0; uint _ts = 0; uint _bal = 0; uint _supply = 1; uint _index = 0; uint _currTs = _feeStart(lastEarn[token][account]); // take epoch last claimed in as starting point _index = getPriorBalanceIndex(account, _currTs); _ts = checkpoints[account][_index].timestamp; _bal = checkpoints[account][_index].balanceOf; // accounts for case where lastEarn is before first checkpoint _currTs = Math.max(_currTs, _feeStart(_ts)); // get epochs between current epoch and first checkpoint in same epoch as last claim uint numEpochs = (_feeStart(block.timestamp) - _currTs) / DURATION; if (numEpochs > 0) { for (uint256 i = 0; i < numEpochs; i++) { // get index of last checkpoint in this epoch _index = getPriorBalanceIndex(account, _currTs + DURATION); // get checkpoint in this epoch _ts = checkpoints[account][_index].timestamp; _bal = checkpoints[account][_index].balanceOf; // get supply of last checkpoint in this epoch _supply = supplyCheckpoints[getPriorSupplyIndex(_currTs + DURATION)].supply; if( _supply > 0 ) // prevent div by 0 reward += _bal * tokenRewardsPerEpoch[token][_currTs] / _supply; _currTs += DURATION; } } return reward; } function deposit(address account, uint amount) external onlyAuthorized nonReentrant whenNotPaused { balanceLockExpires[account] = block.timestamp + WEEK; totalSupply += amount; balanceOf[account] += amount; _writeCheckpoint(account, balanceOf[account]); _writeSupplyCheckpoint(); emit Deposit(msg.sender, account, amount); } function withdraw(address account, uint amount) external onlyAuthorized nonReentrant whenNotPaused { require(_isBalanceLockExpired(account), "Balance is locked"); require(balanceOf[account] >= amount, "Insufficient account balance"); totalSupply -= amount; balanceOf[account] -= amount; _writeCheckpoint(account, balanceOf[account]); _writeSupplyCheckpoint(); emit Withdraw(msg.sender, account, amount); } function left(address token) external view returns (uint) { uint adjustedTstamp = getEpochStart(block.timestamp); return tokenRewardsPerEpoch[token][adjustedTstamp]; } function notifyRewardAmount(address token, uint amount) external nonReentrant { require(amount > 0, "Invalid amount"); if (!isReward[token]) { require(rainbowRoad.tokens(IERC20Metadata(token).symbol()) != address(0), "Rewards tokens must be whitelisted"); require(!rainbowRoad.blockedTokens(token), "Rewards token must not be blocked"); require(rewards.length < MAX_REWARD_TOKENS, "Too many rewards tokens"); } // bribes kick in at the start of next bribe period uint adjustedTstamp = getEpochStart(block.timestamp); uint epochRewards = tokenRewardsPerEpoch[token][adjustedTstamp]; IERC20(token).safeTransferFrom(msg.sender, address(this), amount); // Out of Gas here tokenRewardsPerEpoch[token][adjustedTstamp] = epochRewards + amount; periodFinish[token] = adjustedTstamp + DURATION; if (!isReward[token]) { isReward[token] = true; rewards.push(token); } emit NotifyReward(msg.sender, token, adjustedTstamp, amount); } function swapOutRewardToken(uint i, address oldToken, address newToken) external onlyOwner { require(rewards[i] == oldToken); isReward[oldToken] = false; isReward[newToken] = true; rewards[i] = newToken; } /// @dev Only calls from the authorized are accepted. modifier onlyAuthorized() { require(authorized == msg.sender, "Not authorized"); _; } } // File contracts/FeeCollectorFactory.sol // Original license: SPDX_License_Identifier: BUSL-1.1 pragma solidity 0.8.19; contract FeeCollectorFactory { address public last_fee_collector; function createFeeCollector(address rainbowRoad, address authorizedAccount) external returns (address) { FeeCollector feeCollector = new FeeCollector(rainbowRoad, authorizedAccount); last_fee_collector = address(feeCollector); return last_fee_collector; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"rainbowRoad","type":"address"},{"internalType":"address","name":"authorizedAccount","type":"address"}],"name":"createFeeCollector","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"last_fee_collector","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]Contract Creation Code
9c4d535b00000000000000000000000000000000000000000000000000000000000000000100002f72a13eeb9f05b6e4beec15eea72b4f9286025245055aa4c5e3c5e55700000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000
Deployed Bytecode
0x00020000000000020000006003100270000000210330019700010000003103550000008004000039000000400040043f0000000100200190000000180000c13d000000040030008c000000480000413d000000000201043b000000e002200270000000230020009c000000200000613d000000240020009c000000480000c13d0000000001000416000000000001004b000000480000c13d000000000100041a0000002501100197000000800010043f0000002c01000041000000800001042e0000000001000416000000000001004b000000480000c13d0000002001000039000001000010044300000120000004430000002201000041000000800001042e000000440030008c000000480000413d0000000002000416000000000002004b000000480000c13d0000000402100370000000000202043b000000250020009c000000480000213d0000002401100370000000000101043b000000260010009c000000480000813d00000025022001970000002703000041000000a40030043f000001040020043f000001240010043f00000000010004140000002802000041000000800020043f000000840000043f0000006002000039000000c40020043f0000004002000039000000e40020043f000000210010009c0000002101008041000000c00110021000000029011001c70000800602000039007f007a0000040f00000001002001900000004a0000613d000000000101043b000000000001004b0000006e0000c13d000000010100036700000000020000310000004e0000013d0000000001000019000000810001043000010000000103550000006002100270000000210020019d00000021022001970000002d052001980000001f0620018f000000400300043d0000000004530019000000590000613d000000000701034f0000000008030019000000007907043c0000000008980436000000000048004b000000550000c13d000000000006004b000000660000613d000000000151034f0000000305600210000000000604043300000000065601cf000000000656022f000000000101043b0000010005500089000000000151022f00000000015101cf000000000161019f0000000000140435000000210020009c00000021020080410000006001200210000000210030009c00000021030080410000004002300210000000000112019f00000081000104300000002501100197000000000200041a0000002a02200197000000000212019f000000000020041b000000400200043d0000000000120435000000210020009c000000210200804100000040012002100000002b011001c7000000800001042e0000007d002104210000000102000039000000000001042d0000000002000019000000000001042d0000007f00000432000000800001042e00000081000104300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffff000000020000000000000000000000000000004000000100000000000000000000000000000000000000000000000000000000000000000000000000beb905d7000000000000000000000000000000000000000000000000000000007137cdd1000000000000000000000000ffffffffffffffffffffffffffffffffffffffff0000000000000000000000010000000000000000000000000000000000000000010004952e7ade418d96be92f4253c7b5db570e3be8d968892435063c4a6379a9c4d535bdea7cd8a978f128b93471df48c7dbab89d703809115bdc118c235bfd02000000000000000000000000000000000000c4000000800000000000000000ffffffffffffffffffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000800000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe06b6b397cbd6afa45f04f23f8bda12eb7e5cb9de0286e0f6f4c9db2c62d5eb356
Loading...
Loading
Loading...
Loading
Multichain Portfolio | 31 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|
[ Download: CSV Export ]
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.