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Latest 20 from a total of 20 transactions
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New Sale | 14630389 | 881 days ago | IN | 0 ETH | 0.01620796 | ||||
Buy | 14593127 | 887 days ago | IN | 0 ETH | 0.00299575 | ||||
Buy | 14593101 | 887 days ago | IN | 0 ETH | 0.00355664 | ||||
Buy | 14593094 | 887 days ago | IN | 0.00032872 ETH | 0.0034297 | ||||
New Sale | 14593072 | 887 days ago | IN | 0 ETH | 0.00693926 | ||||
Buy | 14593051 | 887 days ago | IN | 0.00021367 ETH | 0.00331469 | ||||
Set Start | 14593048 | 887 days ago | IN | 0 ETH | 0.00085702 | ||||
Set Merkle Root | 14593038 | 887 days ago | IN | 0 ETH | 0.00158342 | ||||
Set Start | 14593021 | 887 days ago | IN | 0 ETH | 0.00125954 | ||||
Buy | 14592183 | 887 days ago | IN | 0.0000033 ETH | 0.00717274 | ||||
Buy | 14592042 | 887 days ago | IN | 0.0002 ETH | 0.01155486 | ||||
Buy | 14592039 | 887 days ago | IN | 0.0003 ETH | 0.01039002 | ||||
Buy | 14592034 | 887 days ago | IN | 0.0001 ETH | 0.01014866 | ||||
Buy | 14591939 | 887 days ago | IN | 0 ETH | 0.00964718 | ||||
Set Merkle Root | 14591896 | 887 days ago | IN | 0 ETH | 0.00310336 | ||||
Set Start | 14591866 | 887 days ago | IN | 0 ETH | 0.00224352 | ||||
New Sale | 14591649 | 887 days ago | IN | 0 ETH | 0.00832261 | ||||
Buy | 14579761 | 889 days ago | IN | 0.0001 ETH | 0.00742847 | ||||
New Sale | 14545860 | 895 days ago | IN | 0 ETH | 0.01145092 | ||||
0x60c06040 | 14541195 | 895 days ago | IN | 0 ETH | 0.10615575 |
Latest 8 internal transactions
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Contract Name:
SaleManager
Compiler Version
v0.8.4+commit.c7e474f2
Contract Source Code (Solidity Standard Json-Input format)
pragma solidity >=0.8.0 <0.9.0; // SPDX-License-Identifier: MIT import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"; contract SaleManager is ReentrancyGuard { using SafeERC20 for IERC20; AggregatorV3Interface priceOracle; IERC20 public immutable paymentToken; uint8 public immutable paymentTokenDecimals; struct Sale { address payable seller; // the address that will receive sale proceeds bytes32 merkleRoot; // the merkle root used for proving access address claimManager; // address where purchased tokens can be claimed (optional) uint256 saleBuyLimit; // max tokens that can be spent in total uint256 userBuyLimit; // max tokens that can be spent per user uint startTime; // the time at which the sale starts uint endTime; // the time at which the sale will end, regardless of tokens raised string name; // the name of the asset being sold, e.g. "New Crypto Token" string symbol; // the symbol of the asset being sold, e.g. "NCT" uint256 price; // the price of the asset (eg if 1.0 NCT == $1.23 of USDC: 1230000) uint8 decimals; // the number of decimals in the asset being sold, e.g. 18 uint256 totalSpent; // total purchases denominated in payment token mapping(address => uint256) spent; } mapping (bytes32 => Sale) public sales; // global metrics uint256 public saleCount = 0; uint256 public totalSpent = 0; event NewSale( bytes32 indexed saleId, bytes32 indexed merkleRoot, address indexed seller, uint256 saleBuyLimit, uint256 userBuyLimit, uint startTime, uint endTime, string name, string symbol, uint256 price, uint8 decimals ); event UpdateStart(bytes32 indexed saleId, uint startTime); event UpdateEnd(bytes32 indexed saleId, uint endTime); event UpdateMerkleRoot(bytes32 indexed saleId, bytes32 merkleRoot); event Buy(bytes32 indexed saleId, address indexed buyer, uint256 value, bool native, bytes32[] proof); event RegisterClaimManager(bytes32 indexed saleId, address indexed claimManager); constructor( address _paymentToken, uint8 _paymentTokenDecimals, address _priceOracle ) { paymentToken = IERC20(_paymentToken); paymentTokenDecimals = _paymentTokenDecimals; priceOracle = AggregatorV3Interface(_priceOracle); } modifier validSale (bytes32 saleId) { require( sales[saleId].seller != address(0), "invalid sale id" ); _; } modifier isSeller(bytes32 saleId) { require( sales[saleId].seller == msg.sender, "must be seller" ); _; } modifier canAccessSale(bytes32 saleId, bytes32[] calldata proof) { // If the merkle root is non-zero this is a private sale and requires a valid proof if (sales[saleId].merkleRoot != bytes32(0)) { require( this._isAllowed( sales[saleId].merkleRoot, msg.sender, proof ) == true, "invalid access proof for this private sale" ); } _; } modifier requireOpen(bytes32 saleId) { require(block.timestamp > sales[saleId].startTime, "sale not started yet"); require(block.timestamp < sales[saleId].endTime, "sale ended"); require(sales[saleId].totalSpent < sales[saleId].saleBuyLimit, "sale over"); _; } // Get current price from chainlink oracle function getLatestPrice() public view returns (uint) { ( uint80 roundID, int price, uint startedAt, uint timeStamp, uint80 answeredInRound ) = priceOracle.latestRoundData(); require(price > 0, "negative price"); return uint(price); } // Accessor functions function getSeller(bytes32 saleId) public validSale(saleId) view returns(address) { return(sales[saleId].seller); } function getMerkleRoot(bytes32 saleId) public validSale(saleId) view returns(bytes32) { return(sales[saleId].merkleRoot); } function getPriceOracle() public view returns (address) { return address(priceOracle); } function getClaimManager(bytes32 saleId) public validSale(saleId) view returns(address) { return (sales[saleId].claimManager); } function getSaleBuyLimit(bytes32 saleId) public validSale(saleId) view returns(uint256) { return(sales[saleId].saleBuyLimit); } function getUserBuyLimit(bytes32 saleId) public validSale(saleId) view returns(uint256) { return(sales[saleId].userBuyLimit); } function getStartTime(bytes32 saleId) public validSale(saleId) view returns(uint) { return(sales[saleId].startTime); } function getEndTime(bytes32 saleId) public validSale(saleId) view returns(uint) { return(sales[saleId].endTime); } function getName(bytes32 saleId) public validSale(saleId) view returns(string memory) { return(sales[saleId].name); } function getSymbol(bytes32 saleId) public validSale(saleId) view returns(string memory) { return(sales[saleId].symbol); } function getPrice(bytes32 saleId) public validSale(saleId) view returns(uint) { return(sales[saleId].price); } function getDecimals(bytes32 saleId) public validSale(saleId) view returns(uint256) { return (sales[saleId].decimals); } function getTotalSpent(bytes32 saleId) public validSale(saleId) view returns(uint256) { return (sales[saleId].totalSpent); } function spentToBought(bytes32 saleId, uint256 spent) public view returns (uint256) { // Convert tokens spent (e.g. 10,000,000 USDC = $10) to tokens bought (e.g. 8.13e18) at a price of $1.23/NCT // convert an integer value of tokens spent to an integer value of tokens bought return (spent * 10 ** sales[saleId].decimals ) / (sales[saleId].price); } function nativeToPaymentToken(uint256 nativeValue) public view returns (uint256) { // convert a payment in the native token (eg ETH) to an integer value of the payment token return (nativeValue * getLatestPrice() * 10 ** paymentTokenDecimals) / (10 ** (priceOracle.decimals() + 18)); } function getSpent( bytes32 saleId, address userAddress ) public validSale(saleId) view returns(uint256) { // returns the amount spent by this user in paymentToken return(sales[saleId].spent[userAddress]); } function getBought( bytes32 saleId, address userAddress ) public validSale(saleId) view returns(uint256) { // returns the amount bought by this user in the new token being sold return(spentToBought(saleId, sales[saleId].spent[userAddress])); } function isOpen(bytes32 saleId) public validSale(saleId) view returns(bool) { // is the sale currently open? return( block.timestamp > sales[saleId].startTime && block.timestamp < sales[saleId].endTime && sales[saleId].totalSpent < sales[saleId].saleBuyLimit ); } function isOver(bytes32 saleId) public validSale(saleId) view returns(bool) { // is the sale permanently over? return( block.timestamp > sales[saleId].endTime || sales[saleId].totalSpent >= sales[saleId].saleBuyLimit ); } /** sale setup and config - the address calling this method is the seller: all payments are sent to this address - only the seller can change the sale start and end time */ function newSale( bytes32 merkleRoot, uint256 saleBuyLimit, uint256 userBuyLimit, uint startTime, uint endTime, string calldata name, string calldata symbol, uint256 price, uint8 decimals ) public returns(bytes32) { require(startTime <= 4102444800, "max: 4102444800 (Jan 1 2100)"); require(endTime <= 4102444800, "max: 4102444800 (Jan 1 2100)"); require(endTime > block.timestamp, "sale must end in future"); // Generate a reorg-resistant sale ID bytes32 saleId = keccak256(abi.encodePacked( merkleRoot, msg.sender, saleBuyLimit, userBuyLimit, startTime, endTime, name, symbol, price, decimals )); // This ensures the Sale struct wasn't already created (msg.sender will never be the zero address) require(sales[saleId].seller == address(0), "a sale with these parameters already exists"); Sale storage s = sales[saleId]; s.merkleRoot = merkleRoot; s.seller = payable(msg.sender); s.saleBuyLimit = saleBuyLimit; s.userBuyLimit = userBuyLimit; s.startTime = startTime; s.endTime = endTime; s.name = name; s.symbol = symbol; s.price = price; s.decimals = decimals; saleCount++; emit NewSale(saleId, s.merkleRoot, s.seller, s.saleBuyLimit, s.userBuyLimit, s.startTime, s.endTime, s.name, s.symbol, s.price, s.decimals ); return saleId; } function setStart(bytes32 saleId, uint startTime) public validSale(saleId) isSeller(saleId) { // seller can update start time until the sale starts require(block.timestamp < sales[saleId].endTime, "disabled after sale closes"); require(startTime < sales[saleId].endTime, "sale start must precede end"); sales[saleId].startTime = startTime; emit UpdateStart(saleId, startTime); } function setEnd(bytes32 saleId, uint endTime) public validSale(saleId) isSeller(saleId){ // seller can update end time until the sale ends require(block.timestamp < sales[saleId].endTime, "disabled after sale closes"); sales[saleId].endTime = endTime; emit UpdateEnd(saleId, endTime); } function setMerkleRoot(bytes32 saleId, bytes32 merkleRoot) public validSale(saleId) isSeller(saleId){ require(!isOpen(saleId) && !isOver(saleId), "cannot set merkle root once sale opens"); sales[saleId].merkleRoot = merkleRoot; emit UpdateMerkleRoot(saleId, merkleRoot); } function _isAllowed( bytes32 root, address account, bytes32[] calldata proof ) external pure returns (bool) { // check if the account is in the merkle tree bytes32 leaf = keccak256(abi.encodePacked(account)); if (MerkleProof.verify(proof, root, leaf)) { return true; } return false; } // pay with the payment token (eg USDC) function buy( bytes32 saleId, uint256 tokenQuantity, bytes32[] calldata proof ) public validSale(saleId) requireOpen(saleId) canAccessSale(saleId, proof) nonReentrant { // make sure the purchase would not break any sale limits require( tokenQuantity + sales[saleId].spent[msg.sender] <= sales[saleId].userBuyLimit, "purchase exceeds your limit" ); require( tokenQuantity + sales[saleId].totalSpent <= sales[saleId].saleBuyLimit, "purchase exceeds sale limit" ); require(paymentToken.allowance(msg.sender, address(this)) >= tokenQuantity, "allowance too low"); // move the funds paymentToken.safeTransferFrom(msg.sender, sales[saleId].seller, tokenQuantity); // effects after interaction: we need a reentrancy guard sales[saleId].spent[msg.sender] += tokenQuantity; sales[saleId].totalSpent += tokenQuantity; totalSpent += tokenQuantity; emit Buy(saleId, msg.sender, tokenQuantity, false, proof); } // pay with the native token function buy( bytes32 saleId, bytes32[] calldata proof ) public payable validSale(saleId) requireOpen(saleId) canAccessSale(saleId, proof) nonReentrant { // convert to the equivalent payment token value from wei uint256 tokenQuantity = nativeToPaymentToken(msg.value); // make sure the purchase would not break any sale limits require( tokenQuantity + sales[saleId].spent[msg.sender] <= sales[saleId].userBuyLimit, "purchase exceeds your limit" ); require( tokenQuantity + sales[saleId].totalSpent <= sales[saleId].saleBuyLimit, "purchase exceeds sale limit" ); // forward the eth to the seller sales[saleId].seller.transfer(msg.value); // account for the purchase in equivalent payment token value sales[saleId].spent[msg.sender] += tokenQuantity; sales[saleId].totalSpent += tokenQuantity; totalSpent += tokenQuantity; // flag this payment as using the native token emit Buy(saleId, msg.sender, tokenQuantity, true, proof); } // Tell users where they can claim tokens function registerClaimManager(bytes32 saleId, address claimManager) public validSale(saleId) isSeller(saleId) { sales[saleId].claimManager = claimManager; emit RegisterClaimManager(saleId, claimManager); } // Make it public LOL function recoverERC20(address tokenAddress, uint256 tokenAmount) public { IERC20(tokenAddress).transfer(msg.sender, tokenAmount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface AggregatorV3Interface { function decimals() external view returns (uint8); function description() external view returns (string memory); function version() external view returns (uint256); // getRoundData and latestRoundData should both raise "No data present" // if they do not have data to report, instead of returning unset values // which could be misinterpreted as actual reported values. function getRoundData(uint80 _roundId) external view returns ( uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound ); function latestRoundData() external view returns ( uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (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() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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 `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount ) external returns (bool); /** * @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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.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; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } 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)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } 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"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @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"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Address.sol) pragma solidity ^0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 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://diligence.consensys.net/posts/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/v0.5.11/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 functionCall(target, data, "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"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(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) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { // Hash(current element of the proof + current computed hash) computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } return computedHash; } }
{ "evmVersion": "istanbul", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 200 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_paymentToken","type":"address"},{"internalType":"uint8","name":"_paymentTokenDecimals","type":"uint8"},{"internalType":"address","name":"_priceOracle","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bool","name":"native","type":"bool"},{"indexed":false,"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"Buy","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"indexed":true,"internalType":"address","name":"seller","type":"address"},{"indexed":false,"internalType":"uint256","name":"saleBuyLimit","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"userBuyLimit","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"},{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"string","name":"symbol","type":"string"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"},{"indexed":false,"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"NewSale","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":true,"internalType":"address","name":"claimManager","type":"address"}],"name":"RegisterClaimManager","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"UpdateEnd","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"}],"name":"UpdateMerkleRoot","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"saleId","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"}],"name":"UpdateStart","type":"event"},{"inputs":[{"internalType":"bytes32","name":"root","type":"bytes32"},{"internalType":"address","name":"account","type":"address"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"_isAllowed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"buy","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"uint256","name":"tokenQuantity","type":"uint256"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"buy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"address","name":"userAddress","type":"address"}],"name":"getBought","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getClaimManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getDecimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getEndTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLatestPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getMerkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getName","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPriceOracle","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getSaleBuyLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getSeller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"address","name":"userAddress","type":"address"}],"name":"getSpent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getStartTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getSymbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getTotalSpent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"getUserBuyLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"isOpen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"}],"name":"isOver","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"nativeValue","type":"uint256"}],"name":"nativeToPaymentToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"internalType":"uint256","name":"saleBuyLimit","type":"uint256"},{"internalType":"uint256","name":"userBuyLimit","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"newSale","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paymentToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paymentTokenDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"address","name":"claimManager","type":"address"}],"name":"registerClaimManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"saleCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"sales","outputs":[{"internalType":"address payable","name":"seller","type":"address"},{"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"internalType":"address","name":"claimManager","type":"address"},{"internalType":"uint256","name":"saleBuyLimit","type":"uint256"},{"internalType":"uint256","name":"userBuyLimit","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint8","name":"decimals","type":"uint8"},{"internalType":"uint256","name":"totalSpent","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"setEnd","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"bytes32","name":"merkleRoot","type":"bytes32"}],"name":"setMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"uint256","name":"startTime","type":"uint256"}],"name":"setStart","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"saleId","type":"bytes32"},{"internalType":"uint256","name":"spent","type":"uint256"}],"name":"spentToBought","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSpent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb4800000000000000000000000000000000000000000000000000000000000000060000000000000000000000005f4ec3df9cbd43714fe2740f5e3616155c5b8419
-----Decoded View---------------
Arg [0] : _paymentToken (address): 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Arg [1] : _paymentTokenDecimals (uint8): 6
Arg [2] : _priceOracle (address): 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [2] : 0000000000000000000000005f4ec3df9cbd43714fe2740f5e3616155c5b8419
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Multichain Portfolio | 27 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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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.