文件 1 的 9:Address.sol
pragma solidity ^0.8.0;
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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");
}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
文件 2 的 9:Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 3 的 9:IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
文件 4 的 9:IERC677Receiver.sol
pragma solidity ^0.8.0;
interface IERC677Receiver {
function onTokenTransfer(address _sender, uint _value, bytes calldata _data) external;
}
文件 5 的 9:MerkleProof.sol
pragma solidity ^0.8.0;
library MerkleProof {
function verify(
bytes32[] memory proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
bytes32 proofElement = proof[i];
if (computedHash <= proofElement) {
computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
} else {
computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
}
}
return computedHash == root;
}
}
文件 6 的 9:Ownable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 7 的 9:ReentrancyGuard.sol
pragma solidity ^0.8.0;
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
_;
_status = _NOT_ENTERED;
}
}
文件 8 的 9:SafeERC20.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../../../utils/Address.sol";
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));
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
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));
}
}
function _callOptionalReturn(IERC20 token, bytes memory data) private {
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
文件 9 的 9:SaleTiers.sol
pragma solidity ^0.8.0;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { MerkleProof } from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { IERC677Receiver } from "./interfaces/IERC677Receiver.sol";
contract SaleTiers is IERC677Receiver, Ownable, ReentrancyGuard {
using SafeERC20 for IERC20;
struct UserInfo {
uint amount;
uint claimed;
}
IERC20 public paymentToken;
IERC20 public offeringToken;
bytes32 public merkleRoot;
uint public startTime;
uint public endTime;
uint public offeringAmount;
uint public raisingAmount;
uint public vestingInitial;
uint public vestingDuration;
bool public paused;
bool public finalized;
bool public fcfsOpen;
uint public fcfsAllocation;
uint public totalAmount;
uint public totalUsers;
mapping(address => UserInfo) public userInfos;
event SetTokens(address payment, address offering);
event SetAmounts(uint offering, uint raising);
event SetVesting(uint initial, uint duration);
event SetTimes(uint start, uint end);
event SetMerkleRoot(bytes32 merkleRoot);
event SetPaused(bool paused);
event SetFinalized();
event SetFcfsOpen(bool open);
event SetFcfsAllocation(uint amount);
event Deposit(address indexed user, uint amount);
event Harvest(address indexed user, uint amount);
constructor(
address _paymentToken,
address _offeringToken,
bytes32 _merkleRoot,
uint _startTime,
uint _endTime,
uint _offeringAmount,
uint _raisingAmount,
uint _vestingInitial,
uint _vestingDuration
) Ownable() {
paymentToken = IERC20(_paymentToken);
offeringToken = IERC20(_offeringToken);
merkleRoot = _merkleRoot;
startTime = _startTime;
endTime = _endTime;
offeringAmount = _offeringAmount;
raisingAmount = _raisingAmount;
vestingInitial = _vestingInitial;
vestingDuration = _vestingDuration;
fcfsAllocation = (raisingAmount * 1000 / 1000000);
require(_offeringAmount > 0, "offering > 0");
require(_raisingAmount > 0, "raising > 0");
require(_startTime < _endTime, "start < end");
require(_startTime < 1e10, "start time not unix");
require(_endTime < 1e10, "start time not unix");
require(_vestingInitial <= 1e12/2, "vesting initial < 50%");
require(_vestingDuration < 365 days, "vesting duration < 1 year");
emit SetTokens(_paymentToken, _offeringToken);
emit SetAmounts(_offeringAmount, _raisingAmount);
emit SetVesting(_vestingInitial, _vestingDuration);
}
function setTokens(address payment, address offering) external onlyOwner {
paymentToken = IERC20(payment);
offeringToken = IERC20(offering);
emit SetTokens(payment, offering);
}
function setAmounts(uint offering, uint raising) external onlyOwner {
offeringAmount = offering;
raisingAmount = raising;
emit SetAmounts(offering, raising);
}
function setVesting(uint initial, uint duration) external onlyOwner {
vestingInitial = initial;
vestingDuration = duration;
emit SetVesting(initial, duration);
}
function setTimes(uint _startTime, uint _endTime) external onlyOwner {
startTime = _startTime;
endTime = _endTime;
emit SetTimes(_startTime, _endTime);
}
function setMerkleRoot(bytes32 _merkleRoot) external onlyOwner {
merkleRoot = _merkleRoot;
emit SetMerkleRoot(_merkleRoot);
}
function setPaused(bool _paused) external onlyOwner {
paused = _paused;
emit SetPaused(_paused);
}
function setFinalized() external onlyOwner {
finalized = true;
emit SetFinalized();
}
function setFcfsAllocation(bool open) external onlyOwner {
fcfsOpen = open;
emit SetFcfsOpen(open);
}
function setFcfsAllocation(uint amount) external onlyOwner {
fcfsAllocation = amount;
emit SetFcfsAllocation(amount);
}
function getParams() external view returns (uint, uint, uint, uint, uint, bool, bool) {
return (startTime, endTime, raisingAmount, offeringAmount, totalAmount, paused, finalized);
}
function getUserInfo(address _user) public view returns (uint, uint, uint, uint) {
UserInfo memory userInfo = userInfos[_user];
uint owed = (userInfo.amount * offeringAmount) / raisingAmount;
uint claimable = (owed * vestingInitial) / 1e12;
if (block.timestamp > endTime + vestingDuration) {
claimable = owed;
}
return (userInfo.amount, userInfo.claimed, owed, claimable);
}
function _deposit(address user, uint amount, uint allocation, bytes32[] memory merkleProof) internal nonReentrant {
UserInfo storage userInfo = userInfos[user];
require(!paused, "paused");
require(amount > 0, "need amount > 0");
bytes32 node = keccak256(abi.encodePacked(user, allocation));
if (!fcfsOpen) {
require(MerkleProof.verify(merkleProof, merkleRoot, node), "invalid proof");
}
if (block.timestamp > endTime + 30 minutes) {
require(totalAmount + amount <= raisingAmount, "sold out");
} else if (block.timestamp > endTime) {
require(totalAmount + amount <= raisingAmount, "sold out");
require(userInfo.amount + amount <= allocation + fcfsAllocation, "over allocation");
} else {
require(block.timestamp >= startTime && block.timestamp <= endTime, "sale not active");
require(userInfo.amount + amount <= allocation, "over allocation");
}
if (userInfo.amount == 0) {
totalUsers += 1;
}
userInfo.amount = userInfo.amount + amount;
totalAmount = totalAmount + amount;
emit Deposit(user, amount);
}
function depositNative(uint allocation, bytes32[] calldata merkleProof) public payable {
require(address(paymentToken) == address(0), "paymentToken is not native");
_deposit(msg.sender, msg.value, allocation, merkleProof);
}
function deposit(uint amount, uint allocation, bytes32[] calldata merkleProof) public {
require(address(paymentToken) != address(0), "paymentToken is native");
paymentToken.safeTransferFrom(msg.sender, address(this), amount);
_deposit(msg.sender, amount, allocation, merkleProof);
}
function onTokenTransfer(address user, uint amount, bytes calldata data) external override {
require(msg.sender == address(paymentToken), "onTokenTransfer: not paymentToken");
(uint allocation, bytes32[] memory merkleProof) = abi.decode(data, (uint, bytes32[]));
_deposit(user, amount, allocation, merkleProof);
}
function harvest() external nonReentrant {
(uint contributed, uint claimed, , uint claimable) = getUserInfo(msg.sender);
require(!paused, "paused");
require(block.timestamp > endTime, "sale not ended");
require(finalized, "not finalized");
require(contributed > 0, "have you participated?");
uint amount = claimable - claimed;
require(amount > 0, "no amount available for claiming");
userInfos[msg.sender].claimed += amount;
offeringToken.safeTransfer(address(msg.sender), amount);
emit Harvest(msg.sender, amount);
}
function withdrawToken(address token, uint amount) external onlyOwner {
if (token == address(0)) {
(bool sent,) = msg.sender.call{value: amount}("");
require(sent, "failed to send");
} else {
IERC20(token).safeTransfer(msg.sender, amount);
}
}
function _min(uint a, uint b) private pure returns (uint) {
return a < b ? a : b;
}
}
{
"compilationTarget": {
"contracts/SaleTiers.sol": "SaleTiers"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
[{"inputs":[{"internalType":"address","name":"_paymentToken","type":"address"},{"internalType":"address","name":"_offeringToken","type":"address"},{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"},{"internalType":"uint256","name":"_startTime","type":"uint256"},{"internalType":"uint256","name":"_endTime","type":"uint256"},{"internalType":"uint256","name":"_offeringAmount","type":"uint256"},{"internalType":"uint256","name":"_raisingAmount","type":"uint256"},{"internalType":"uint256","name":"_vestingInitial","type":"uint256"},{"internalType":"uint256","name":"_vestingDuration","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Harvest","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"offering","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"raising","type":"uint256"}],"name":"SetAmounts","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"SetFcfsAllocation","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"open","type":"bool"}],"name":"SetFcfsOpen","type":"event"},{"anonymous":false,"inputs":[],"name":"SetFinalized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"}],"name":"SetMerkleRoot","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"paused","type":"bool"}],"name":"SetPaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"start","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"end","type":"uint256"}],"name":"SetTimes","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"payment","type":"address"},{"indexed":false,"internalType":"address","name":"offering","type":"address"}],"name":"SetTokens","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"initial","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"duration","type":"uint256"}],"name":"SetVesting","type":"event"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"allocation","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"allocation","type":"uint256"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"name":"depositNative","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"endTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fcfsAllocation","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fcfsOpen","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"finalized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getParams","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bool","name":"","type":"bool"},{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getUserInfo","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"harvest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"offeringAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"offeringToken","outputs":[{"internalType":"contract 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