@levxdao/airdrop

{ "address": "0xea65fBF921e3868BDA21210A7E73e7201c1E22bD", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "token", "type": "address" }, { "indexed": true, "internalType": "bytes32", "name": "merkleRoot", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "wallet", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "deadline", "type": "uint256" } ], "name": "AddMerkleRoot", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "token", "type": "address" }, { "indexed": true, "internalType": "bytes32", "name": "merkleRoot", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "wallet", "type": "address" }, { "indexed": true, "internalType": "address", "name": "account", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "Claim", "type": "event" }, { "inputs": [ { "internalType": "address", "name": "token", "type": "address" }, { "internalType": "bytes32", "name": "merkleRoot", "type": "bytes32" }, { "internalType": "uint256", "name": "deadline", "type": "uint256" } ], "name": "addMerkleRoot", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "token", "type": "address" }, { "internalType": "bytes32", "name": "merkleRoot", "type": "bytes32" }, { "internalType": "bytes32[]", "name": "merkleProof", "type": "bytes32[]" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "claim", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" }, { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "name": "deadlineOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "root", "type": "bytes32" }, { "internalType": "bytes32", "name": "leaf", "type": "bytes32" }, { "internalType": "bytes32[]", "name": "proof", "type": "bytes32[]" } ], "name": "verify", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "pure", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" }, { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "name": "walletOf", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" } ], "transactionHash": "0x3029d9da66f93cbc111a3f398b7b9fbc6d2ae2758e8f19b93c086569889fe1e5", "receipt": { "to": null, "from": "0x5b8C253517b6Bd003369173109693B01cb6841B5", "contractAddress": "0xea65fBF921e3868BDA21210A7E73e7201c1E22bD", "transactionIndex": 119, "gasUsed": "665908", "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "blockHash": "0xc62ea6d5d8337f62f6df49bfa0e1f07f92c8a5cf720b1f1fcb07ed68dede8952", "transactionHash": "0x3029d9da66f93cbc111a3f398b7b9fbc6d2ae2758e8f19b93c086569889fe1e5", "logs": [], "blockNumber": 13733897, "cumulativeGasUsed": "7259354", "status": 1, "byzantium": true }, "args": [], "solcInputHash": "06945bbd7d57050e44d9383769243f67", "metadata": "{\"compiler\":{\"version\":\"0.8.3+commit.8d00100c\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"wallet\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"deadline\",\"type\":\"uint256\"}],\"name\":\"AddMerkleRoot\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"wallet\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"Claim\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"internalType\":\"uint256\",\"name\":\"deadline\",\"type\":\"uint256\"}],\"name\":\"addMerkleRoot\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"token\",\"type\":\"address\"},{\"internalType\":\"bytes32\",\"name\":\"merkleRoot\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32[]\",\"name\":\"merkleProof\",\"type\":\"bytes32[]\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"claim\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"deadlineOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"root\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"leaf\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32[]\",\"name\":\"proof\",\"type\":\"bytes32[]\"}],\"name\":\"verify\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"walletOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/ERC20Airdrops.sol\":\"ERC20Airdrops\"},\"evmVersion\":\"istanbul\",\"libraries\":{\":__CACHE_BREAKER__\":\"0x00000000d41867734bbee4c6863d9255b2b06ac1\"},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20 {\\n /**\\n * @dev Returns the amount of tokens in existence.\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @dev Returns the amount of tokens owned by `account`.\\n */\\n function balanceOf(address account) external view returns (uint256);\\n\\n /**\\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transfer(address recipient, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Returns the remaining number of tokens that `spender` will be\\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n * zero by default.\\n *\\n * This value changes when {approve} or {transferFrom} are called.\\n */\\n function allowance(address owner, address spender) external view returns (uint256);\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n * that someone may use both the old and the new allowance by unfortunate\\n * transaction ordering. One possible solution to mitigate this race\\n * condition is to first reduce the spender's allowance to 0 and set the\\n * desired value afterwards:\\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address spender, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\\n * allowance mechanism. `amount` is then deducted from the caller's\\n * allowance.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(\\n address sender,\\n address recipient,\\n uint256 amount\\n ) external returns (bool);\\n\\n /**\\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n * another (`to`).\\n *\\n * Note that `value` may be zero.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n /**\\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n * a call to {approve}. `value` is the new allowance.\\n */\\n event Approval(address indexed owner, address indexed spender, uint256 value);\\n}\\n\",\"keccak256\":\"0xc1452b054778f1926419196ef12ae200758a4ee728df69ae1cd13e5c16ca7df7\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.0 (token/ERC20/utils/SafeERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\nimport \\\"../../../utils/Address.sol\\\";\\n\\n/**\\n * @title SafeERC20\\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\\n * contract returns false). Tokens that return no value (and instead revert or\\n * throw on failure) are also supported, non-reverting calls are assumed to be\\n * successful.\\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\\n */\\nlibrary SafeERC20 {\\n using Address for address;\\n\\n function safeTransfer(\\n IERC20 token,\\n address to,\\n uint256 value\\n ) internal {\\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\\n }\\n\\n function safeTransferFrom(\\n IERC20 token,\\n address from,\\n address to,\\n uint256 value\\n ) internal {\\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\\n }\\n\\n /**\\n * @dev Deprecated. This function has issues similar to the ones found in\\n * {IERC20-approve}, and its usage is discouraged.\\n *\\n * Whenever possible, use {safeIncreaseAllowance} and\\n * {safeDecreaseAllowance} instead.\\n */\\n function safeApprove(\\n IERC20 token,\\n address spender,\\n uint256 value\\n ) internal {\\n // safeApprove should only be called when setting an initial allowance,\\n // or when resetting it to zero. To increase and decrease it, use\\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\\n require(\\n (value == 0) || (token.allowance(address(this), spender) == 0),\\n \\\"SafeERC20: approve from non-zero to non-zero allowance\\\"\\n );\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\\n }\\n\\n function safeIncreaseAllowance(\\n IERC20 token,\\n address spender,\\n uint256 value\\n ) internal {\\n uint256 newAllowance = token.allowance(address(this), spender) + value;\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n }\\n\\n function safeDecreaseAllowance(\\n IERC20 token,\\n address spender,\\n uint256 value\\n ) internal {\\n unchecked {\\n uint256 oldAllowance = token.allowance(address(this), spender);\\n require(oldAllowance >= value, \\\"SafeERC20: decreased allowance below zero\\\");\\n uint256 newAllowance = oldAllowance - value;\\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\\n }\\n }\\n\\n /**\\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\\n * on the return value: the return value is optional (but if data is returned, it must not be false).\\n * @param token The token targeted by the call.\\n * @param data The call data (encoded using abi.encode or one of its variants).\\n */\\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\\n // the target address contains contract code and also asserts for success in the low-level call.\\n\\n bytes memory returndata = address(token).functionCall(data, \\\"SafeERC20: low-level call failed\\\");\\n if (returndata.length > 0) {\\n // Return data is optional\\n require(abi.decode(returndata, (bool)), \\\"SafeERC20: ERC20 operation did not succeed\\\");\\n }\\n }\\n}\\n\",\"keccak256\":\"0x671741933530f343f023a40e58e61bc09d62494b96c6f3e39e647f315facd519\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Address.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Collection of functions related to the address type\\n */\\nlibrary Address {\\n /**\\n * @dev Returns true if `account` is a contract.\\n *\\n * [IMPORTANT]\\n * ====\\n * It is unsafe to assume that an address for which this function returns\\n * false is an externally-owned account (EOA) and not a contract.\\n *\\n * Among others, `isContract` will return false for the following\\n * types of addresses:\\n *\\n * - an externally-owned account\\n * - a contract in construction\\n * - an address where a contract will be created\\n * - an address where a contract lived, but was destroyed\\n * ====\\n */\\n function isContract(address account) internal view returns (bool) {\\n // This method relies on extcodesize, which returns 0 for contracts in\\n // construction, since the code is only stored at the end of the\\n // constructor execution.\\n\\n uint256 size;\\n assembly {\\n size := extcodesize(account)\\n }\\n return size > 0;\\n }\\n\\n /**\\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\\n * `recipient`, forwarding all available gas and reverting on errors.\\n *\\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\\n * imposed by `transfer`, making them unable to receive funds via\\n * `transfer`. {sendValue} removes this limitation.\\n *\\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\\n *\\n * IMPORTANT: because control is transferred to `recipient`, care must be\\n * taken to not create reentrancy vulnerabilities. Consider using\\n * {ReentrancyGuard} or the\\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\\n */\\n function sendValue(address payable recipient, uint256 amount) internal {\\n require(address(this).balance >= amount, \\\"Address: insufficient balance\\\");\\n\\n (bool success, ) = recipient.call{value: amount}(\\\"\\\");\\n require(success, \\\"Address: unable to send value, recipient may have reverted\\\");\\n }\\n\\n /**\\n * @dev Performs a Solidity function call using a low level `call`. A\\n * plain `call` is an unsafe replacement for a function call: use this\\n * function instead.\\n *\\n * If `target` reverts with a revert reason, it is bubbled up by this\\n * function (like regular Solidity function calls).\\n *\\n * Returns the raw returned data. To convert to the expected return value,\\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\\n *\\n * Requirements:\\n *\\n * - `target` must be a contract.\\n * - calling `target` with `data` must not revert.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionCall(target, data, \\\"Address: low-level call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\\n * `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, 0, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but also transferring `value` wei to `target`.\\n *\\n * Requirements:\\n *\\n * - the calling contract must have an ETH balance of at least `value`.\\n * - the called Solidity function must be `payable`.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value\\n ) internal returns (bytes memory) {\\n return functionCallWithValue(target, data, value, \\\"Address: low-level call with value failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\\n * with `errorMessage` as a fallback revert reason when `target` reverts.\\n *\\n * _Available since v3.1._\\n */\\n function functionCallWithValue(\\n address target,\\n bytes memory data,\\n uint256 value,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n require(address(this).balance >= value, \\\"Address: insufficient balance for call\\\");\\n require(isContract(target), \\\"Address: call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.call{value: value}(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\\n return functionStaticCall(target, data, \\\"Address: low-level static call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a static call.\\n *\\n * _Available since v3.3._\\n */\\n function functionStaticCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal view returns (bytes memory) {\\n require(isContract(target), \\\"Address: static call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.staticcall(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\\n * but performing a delegate call.\\n *\\n * _Available since v3.4._\\n */\\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\\n return functionDelegateCall(target, data, \\\"Address: low-level delegate call failed\\\");\\n }\\n\\n /**\\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\\n * but performing a delegate call.\\n *\\n * _Available since v3.4._\\n */\\n function functionDelegateCall(\\n address target,\\n bytes memory data,\\n string memory errorMessage\\n ) internal returns (bytes memory) {\\n require(isContract(target), \\\"Address: delegate call to non-contract\\\");\\n\\n (bool success, bytes memory returndata) = target.delegatecall(data);\\n return verifyCallResult(success, returndata, errorMessage);\\n }\\n\\n /**\\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\\n * revert reason using the provided one.\\n *\\n * _Available since v4.3._\\n */\\n function verifyCallResult(\\n bool success,\\n bytes memory returndata,\\n string memory errorMessage\\n ) internal pure returns (bytes memory) {\\n if (success) {\\n return returndata;\\n } else {\\n // Look for revert reason and bubble it up if present\\n if (returndata.length > 0) {\\n // The easiest way to bubble the revert reason is using memory via assembly\\n\\n assembly {\\n let returndata_size := mload(returndata)\\n revert(add(32, returndata), returndata_size)\\n }\\n } else {\\n revert(errorMessage);\\n }\\n }\\n }\\n}\\n\",\"keccak256\":\"0x9944d1038f27dcebff810d7ba16b3b8058b967173d76874fb72dd7cd84129656\",\"license\":\"MIT\"},\"contracts/ERC20Airdrops.sol\":{\"content\":\"// SPDX-License-Identifier: UNLICENSED\\n\\npragma solidity =0.8.3;\\n\\nimport \\\"@openzeppelin/contracts/token/ERC20/IERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\\\";\\nimport \\\"./MerkleProof.sol\\\";\\n\\ncontract ERC20Airdrops is MerkleProof {\\n using SafeERC20 for IERC20;\\n\\n mapping(address => mapping(bytes32 => uint256)) public deadlineOf;\\n mapping(address => mapping(bytes32 => address)) public walletOf;\\n mapping(address => mapping(bytes32 => mapping(bytes32 => bool))) internal _hasClaimed;\\n\\n event AddMerkleRoot(address indexed token, bytes32 indexed merkleRoot, address wallet, uint256 deadline);\\n event Claim(\\n address indexed token,\\n bytes32 indexed merkleRoot,\\n address wallet,\\n address indexed account,\\n uint256 amount\\n );\\n\\n function addMerkleRoot(\\n address token,\\n bytes32 merkleRoot,\\n uint256 deadline\\n ) external {\\n address wallet = walletOf[token][merkleRoot];\\n require(wallet == address(0), \\\"LEVX: DUPLICATE_ROOT\\\");\\n walletOf[token][merkleRoot] = msg.sender;\\n deadlineOf[token][merkleRoot] = deadline;\\n\\n emit AddMerkleRoot(token, merkleRoot, msg.sender, deadline);\\n }\\n\\n function claim(\\n address token,\\n bytes32 merkleRoot,\\n bytes32[] calldata merkleProof,\\n uint256 amount\\n ) external {\\n address wallet = walletOf[token][merkleRoot];\\n require(wallet != address(0), \\\"LEVX: INVALID_ROOT\\\");\\n require(block.timestamp < deadlineOf[token][merkleRoot], \\\"LEVX: EXPIRED\\\");\\n\\n bytes32 leaf = keccak256(abi.encodePacked(msg.sender, amount));\\n require(!_hasClaimed[token][merkleRoot][leaf], \\\"LEVX: FORBIDDEN\\\");\\n require(verify(merkleRoot, leaf, merkleProof), \\\"LEVX: INVALID_PROOF\\\");\\n\\n _hasClaimed[token][merkleRoot][leaf] = true;\\n IERC20(token).safeTransferFrom(wallet, msg.sender, amount);\\n\\n emit Claim(token, merkleRoot, wallet, msg.sender, amount);\\n }\\n}\\n\",\"keccak256\":\"0xecc036a3cab57e5484c2bda300ec4191b31d420b785f209969742f9a01f4cfc4\",\"license\":\"UNLICENSED\"},\"contracts/MerkleProof.sol\":{\"content\":\"// SPDX-License-Identifier: UNLICENSED\\n\\npragma solidity =0.8.3;\\n\\ncontract MerkleProof {\\n function verify(\\n bytes32 root,\\n bytes32 leaf,\\n bytes32[] memory proof\\n ) public pure returns (bool) {\\n bytes32 computedHash = leaf;\\n\\n for (uint256 i = 0; i < proof.length; i++) {\\n bytes32 proofElement = proof[i];\\n\\n if (computedHash < proofElement) {\\n // Hash(current computed hash + current element of the proof)\\n computedHash = keccak256(abi.encodePacked(computedHash, proofElement));\\n } else {\\n // Hash(current element of the proof + current computed hash)\\n computedHash = keccak256(abi.encodePacked(proofElement, computedHash));\\n }\\n }\\n\\n // Check if the computed hash (root) is equal to the provided root\\n return computedHash == root;\\n }\\n}\\n\",\"keccak256\":\"0xa2580b5332ea27ce626df7151b099d63c8136644814c475307be8a884984b58c\",\"license\":\"UNLICENSED\"}},\"version\":1}", "bytecode": 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"mapping(bytes32 => bool)", "numberOfBytes": "32", "value": "t_bool" }, "t_mapping(t_bytes32,t_mapping(t_bytes32,t_bool))": { "encoding": "mapping", "key": "t_bytes32", "label": "mapping(bytes32 => mapping(bytes32 => bool))", "numberOfBytes": "32", "value": "t_mapping(t_bytes32,t_bool)" }, "t_mapping(t_bytes32,t_uint256)": { "encoding": "mapping", "key": "t_bytes32", "label": "mapping(bytes32 => uint256)", "numberOfBytes": "32", "value": "t_uint256" }, "t_uint256": { "encoding": "inplace", "label": "uint256", "numberOfBytes": "32" } } } }