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Latest 25 from a total of 55,515 transactions
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Deposit | 11736136 | 2 mins ago | IN | 0 ETH | 0.0000333 | ||||
Deposit | 11734571 | 1 hr ago | IN | 0 ETH | 0.00002129 | ||||
Withdraw | 11734350 | 2 hrs ago | IN | 0 ETH | 0.00002064 | ||||
Claim | 11734112 | 2 hrs ago | IN | 0 ETH | 0.0000124 | ||||
Withdraw | 11734103 | 2 hrs ago | IN | 0 ETH | 0.00001717 | ||||
Withdraw | 11733245 | 3 hrs ago | IN | 0 ETH | 0.00001799 | ||||
Withdraw | 11732742 | 3 hrs ago | IN | 0 ETH | 0.00001588 | ||||
Claim | 11732534 | 3 hrs ago | IN | 0 ETH | 0.00001281 | ||||
Claim | 11731013 | 5 hrs ago | IN | 0 ETH | 0.00001361 | ||||
Claim | 11730350 | 6 hrs ago | IN | 0 ETH | 0.0000178 | ||||
Claim | 11730189 | 6 hrs ago | IN | 0 ETH | 0.00001361 | ||||
Deposit | 11730188 | 6 hrs ago | IN | 0 ETH | 0.0000162 | ||||
Claim | 11729445 | 7 hrs ago | IN | 0 ETH | 0.00001857 | ||||
Withdraw | 11729292 | 7 hrs ago | IN | 0 ETH | 0.00001267 | ||||
Withdraw | 11728645 | 7 hrs ago | IN | 0 ETH | 0.00001726 | ||||
Claim | 11728063 | 8 hrs ago | IN | 0 ETH | 0.00001278 | ||||
Withdraw | 11726830 | 9 hrs ago | IN | 0 ETH | 0.00002445 | ||||
Withdraw | 11726406 | 10 hrs ago | IN | 0 ETH | 0.00002453 | ||||
Withdraw | 11726395 | 10 hrs ago | IN | 0 ETH | 0.00002384 | ||||
Withdraw | 11726225 | 10 hrs ago | IN | 0 ETH | 0.00002165 | ||||
Withdraw | 11725387 | 11 hrs ago | IN | 0 ETH | 0.00001845 | ||||
Claim | 11725362 | 11 hrs ago | IN | 0 ETH | 0.00001581 | ||||
Claim | 11725334 | 11 hrs ago | IN | 0 ETH | 0.00001196 | ||||
Claim | 11725329 | 11 hrs ago | IN | 0 ETH | 0.00001382 | ||||
Claim | 11725229 | 11 hrs ago | IN | 0 ETH | 0.00001382 |
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Contract Name:
StargateStaking
Compiler Version
v0.8.22+commit.4fc1097e
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.22; import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import { Address } from "@openzeppelin/contracts/utils/Address.sol"; import { EnumerableSet } from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; import { StakingLib, StakingPool } from "./lib/StakingLib.sol"; import { IStargateStaking, IRewarder, IStakingReceiver, IERC20 } from "./interfaces/IStargateStaking.sol"; /// @notice See `IStargateStaking` for documentation. contract StargateStaking is Ownable, ReentrancyGuard, IStargateStaking { using EnumerableSet for EnumerableSet.AddressSet; using StakingLib for StakingPool; EnumerableSet.AddressSet private _tokens; mapping(IERC20 lpToken => StakingPool) private _pools; modifier validPool(IERC20 token) { _validatePool(token); _; } function _validatePool(IERC20 token) internal view { if (!_pools[token].exists) revert NonExistentPool(token); } //** ADMIN FUNCTIONS **/ function setPool(IERC20 token, IRewarder newRewarder) external override onlyOwner { bool exists = _pools[token].exists; if (!exists) { _pools[token].exists = true; _tokens.add(address(token)); } // Prevents re-adding of an old rewarder to a pool, which could lead to excessive reward distribution. newRewarder.connect(token); _pools[token].rewarder = newRewarder; emit PoolSet(token, newRewarder, exists); } function renounceOwnership() public view override onlyOwner { revert StargateStakingRenounceOwnershipDisabled(); } //** USER FUNCTIONS **/ function deposit(IERC20 token, uint256 amount) external override nonReentrant validPool(token) { _pools[token].deposit(token, msg.sender, msg.sender, amount); } function depositTo(IERC20 token, address to, uint256 amount) external override nonReentrant validPool(token) { if (!Address.isContract(msg.sender)) revert InvalidCaller(); _pools[token].deposit(token, msg.sender, to, amount); } function withdraw(IERC20 token, uint256 amount) external override nonReentrant validPool(token) { _pools[token].withdraw(token, msg.sender, msg.sender, amount, true); } function withdrawToAndCall( IERC20 token, IStakingReceiver to, uint256 amount, bytes calldata data ) external override nonReentrant validPool(token) { if (!Address.isContract(address(to))) { revert InvalidReceiver(address(to)); } _pools[token].withdraw(token, msg.sender, address(to), amount, true); /** * @dev This line reverts ambiguously if the `to` does not return a response, but is a contract. This could be * solved similar to [OpenZeppelin's approach](https://github.com/OpenZeppelin/openzeppelin-contracts/blob * /141c947921cc5d23ee1d247c691a8b85cabbbd5d/contracts/token/ERC1155/utils/ERC1155Utils.sol#L22), but we've * opted against this for now as to avoid all inline assembly within this project. */ if (to.onWithdrawReceived(token, msg.sender, amount, data) != IStakingReceiver.onWithdrawReceived.selector) { revert InvalidReceiver(address(to)); } } function emergencyWithdraw(IERC20 token) external override nonReentrant validPool(token) { uint256 amount = _pools[token].balanceOf[msg.sender]; _pools[token].withdraw(token, msg.sender, msg.sender, amount, false); } function claim(IERC20[] calldata lpTokens) external override nonReentrant { for (uint256 i = 0; i < lpTokens.length; i++) { IERC20 token = lpTokens[i]; _validatePool(token); _pools[token].claim(token, msg.sender); } } //** VIEW FUNCTIONS **// function isPool(IERC20 token) external view override returns (bool) { return _pools[token].exists; } function tokensLength() external view override returns (uint256) { return _tokens.length(); } function tokens() external view override returns (IERC20[] memory) { return tokens(0, _tokens.length()); } function tokens(uint256 start, uint256 end) public view override returns (IERC20[] memory) { IERC20[] memory result = new IERC20[](end - start); for (uint256 i = start; i < end; i++) { result[i - start] = IERC20(_tokens.at(i)); } return result; } function balanceOf(IERC20 token, address user) external view override returns (uint256) { return _pools[token].balanceOf[user]; } function totalSupply(IERC20 token) external view override returns (uint256) { return _pools[token].totalSupply; } function rewarder(IERC20 token) external view override returns (IRewarder) { return _pools[token].rewarder; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../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. * * 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); } }
// 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; } }
// 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (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. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ 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]. * * CAUTION: See Security Considerations above. */ 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @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)); } }
// 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); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ```solidity * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.22; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @notice A rewarder is connected to the staking contract and distributes rewards whenever the staking contract * updates the rewarder. */ interface IRewarder { /** * @notice This function is only callable by the staking contract. */ error MultiRewarderUnauthorizedCaller(address caller); /** * @notice The rewarder cannot be reconnected to the same staking token as it would cause wrongful reward * attribution through reconfiguration. */ error RewarderAlreadyConnected(IERC20 stakingToken); /** * @notice Emitted when the rewarder is connected to a staking token. */ event RewarderConnected(IERC20 indexed stakingToken); /** * @notice Informs the rewarder of an update in the staking contract, such as a deposit, withdraw or claim. * @dev Emergency withdrawals draw the balance of a user to 0, and DO NOT call `onUpdate`. * The rewarder logic must keep this in mind! */ function onUpdate(IERC20 token, address user, uint256 oldStake, uint256 oldSupply, uint256 newStake) external; /** * @notice Called by the staking contract whenever this rewarder is connected to a staking token in the staking * contract. Should only be callable once per staking token to avoid wrongful reward attribution through * reconfiguration. */ function connect(IERC20 stakingToken) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.22; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; interface IStakingReceiver { function onWithdrawReceived( IERC20 token, address from, uint256 value, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.22; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import { IStakingReceiver } from "./IStakingReceiver.sol"; import { IRewarder } from "./IRewarder.sol"; // @notice The interface to the staking contract for Stargate V2 LPs. interface IStargateStaking { /// @notice StargateStaking renounce ownership is disabled. error StargateStakingRenounceOwnershipDisabled(); /** * @notice Thrown on `depositTo` if the caller does not have bytecode, used as an anti-phishing measure to prevent * users from calling `depositTo` as it's for zappers. */ error InvalidCaller(); /** * @notice Thrown on `withdrawToAndCall` if the `to` contract does not return the magic bytes. */ error InvalidReceiver(address receiver); error NonExistentPool(IERC20 token); event Deposit(IERC20 indexed token, address indexed from, address indexed to, uint256 amount); event Withdraw(IERC20 indexed token, address indexed from, address indexed to, uint256 amount, bool withUpdate); event PoolSet(IERC20 indexed token, IRewarder rewarder, bool exists); /** * ADMIN * */ /** * @notice Configures the rewarder for a pool. This will initialize the pool if it does not exist yet, * whitelisting it for deposits. */ function setPool(IERC20 token, IRewarder rewarder) external; /** * USER * */ /** * @notice Deposits `amount` of `token` into the pool. Informs the rewarder of the deposit, triggering a harvest. */ function deposit(IERC20 token, uint256 amount) external; /** * @notice Deposits `amount` of `token` into the pool for `to`. Informs the rewarder of the deposit, triggering a * harvest. This function can only be called by a contract, as to prevent phishing by a malicious contract. * @dev This function is useful for zappers, as it allows to do multiple steps ending with a deposit, * without the need to do multiple transactions. */ function depositTo(IERC20 token, address to, uint256 amount) external; /// @notice Withdraws `amount` of `token` from the pool. Informs the rewarder of the withdrawal, triggers a harvest. function withdraw(IERC20 token, uint256 amount) external; /** * @notice Withdraws `amount` of `token` from the pool for `to`, and subsequently calls the receipt function on the * `to` contract. Informs the rewarder of the withdrawal, triggering a harvest. * @dev This function is useful for zappers, as it allows to do multiple steps ending with a deposit, * without the need to do multiple transactions. */ function withdrawToAndCall(IERC20 token, IStakingReceiver to, uint256 amount, bytes calldata data) external; /// @notice Withdraws `amount` of `token` from the pool in an always-working fashion. The rewarder is not informed. function emergencyWithdraw(IERC20 token) external; /// @notice Claims the rewards from the rewarder, and sends them to the caller. function claim(IERC20[] calldata lpTokens) external; /** * VIEW * */ /// @notice Returns the deposited balance of `user` in the pool of `token`. function balanceOf(IERC20 token, address user) external view returns (uint256); /// @notice Returns the total supply of the pool of `token`. function totalSupply(IERC20 token) external view returns (uint256); /// @notice Returns whether `token` is a pool. function isPool(IERC20 token) external view returns (bool); /// @notice Returns the number of pools. function tokensLength() external view returns (uint256); /// @notice Returns the list of pools, by their staking tokens. function tokens() external view returns (IERC20[] memory); /// @notice Returns a slice of the list of pools, by their staking tokens. function tokens(uint256 start, uint256 end) external view returns (IERC20[] memory); // @notice Returns the rewarder of the pool of `token`, responsible for distribution reward tokens. function rewarder(IERC20 token) external view returns (IRewarder); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.22; import { IStargateStaking, IERC20, IRewarder } from "../interfaces/IStargateStaking.sol"; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; /// @dev Internal representation for a staking pool. struct StakingPool { uint256 totalSupply; bool exists; IRewarder rewarder; mapping(address => uint256) balanceOf; } /// @dev Library for staking pool logic. library StakingLib { using SafeERC20 for IERC20; /// @dev Emitted when `user` attempts to withdraw an amount which exceeds their balance. error WithdrawalAmountExceedsBalance(); /** * @dev Deposit `amount` of `token` from `from` to `to`, increments the `to` balance and totalSupply while * transferring in `token` from `from`, into the contract. Calls the `rewarder` to update the reward state. */ function deposit(StakingPool storage self, IERC20 token, address from, address to, uint256 amount) internal { uint256 oldBal = self.balanceOf[to]; uint256 oldSupply = self.totalSupply; uint256 newBal = oldBal + amount; self.balanceOf[to] = newBal; self.totalSupply = oldSupply + amount; emit IStargateStaking.Deposit(token, from, to, amount); self.rewarder.onUpdate(token, to, oldBal, oldSupply, newBal); token.safeTransferFrom(from, address(this), amount); } /** * @dev Withdraw `amount` of `token` from `from` to `to`, decrements the `from` balance and totalSupply while * transferring out `token` to `to`. Calls the `rewarder` to update the reward state. */ function withdraw( StakingPool storage self, IERC20 token, address from, address to, uint256 amount, bool withUpdate ) internal { uint256 oldBal = self.balanceOf[from]; uint256 oldSupply = self.totalSupply; if (oldBal < amount) revert WithdrawalAmountExceedsBalance(); uint256 newBal = oldBal - amount; self.balanceOf[from] = newBal; self.totalSupply = oldSupply - amount; emit IStargateStaking.Withdraw(token, from, to, amount, withUpdate); if (withUpdate) { self.rewarder.onUpdate(token, from, oldBal, oldSupply, newBal); } token.safeTransfer(to, amount); } /** * @dev Claims the `user` rewards from the `rewarder`, and sends them to the `user`. This is done automatically on * deposits and withdrawals as well. */ function claim(StakingPool storage self, IERC20 token, address user) internal { self.rewarder.onUpdate(token, user, self.balanceOf[user], self.totalSupply, 0); } }
{ "evmVersion": "paris", "optimizer": { "enabled": true, "runs": 5000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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IERC20","name":"token","type":"address"}],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"contract IStakingReceiver","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"withdrawToAndCall","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.