编译器
0.8.24+commit.e11b9ed9
文件 1 的 18：AggregatorV3Interface.sol
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);
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);
}
文件 2 的 18：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 18：ECDSA.sol
pragma solidity ^0.8.0;
import "../Strings.sol";
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return;
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
}
}
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
uint8 v = uint8((uint256(vs) >> 255) + 27);
return tryRecover(hash, v, r, s);
}
function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
assembly {
mstore(0x00, "\x19Ethereum Signed Message:\n32")
mstore(0x1c, hash)
message := keccak256(0x00, 0x3c)
}
}
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
assembly {
let ptr := mload(0x40)
mstore(ptr, "\x19\x01")
mstore(add(ptr, 0x02), domainSeparator)
mstore(add(ptr, 0x22), structHash)
data := keccak256(ptr, 0x42)
}
}
function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x00", validator, data));
}
}
文件 4 的 18：IDaiLikePermit.sol
pragma solidity ^0.8.0;
interface IDaiLikePermit {
function permit(
address holder,
address spender,
uint256 nonce,
uint256 expiry,
bool allowed,
uint8 v,
bytes32 r,
bytes32 s
) external;
}
文件 5 的 18：IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, 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 from, address to, uint256 amount) external returns (bool);
}
文件 6 的 18：IERC20Permit.sol
pragma solidity ^0.8.0;
interface IERC20Permit {
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
function nonces(address owner) external view returns (uint256);
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
文件 7 的 18：IERC7597Permit.sol
pragma solidity ^0.8.0;
interface IERC7597Permit {
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
bytes memory signature
) external;
}
文件 8 的 18：IPermit2.sol
pragma solidity ^0.8.0;
interface IPermit2 {
struct PermitDetails {
address token;
uint160 amount;
uint48 expiration;
uint48 nonce;
}
struct PermitSingle {
PermitDetails details;
address spender;
uint256 sigDeadline;
}
struct PackedAllowance {
uint160 amount;
uint48 expiration;
uint48 nonce;
}
function transferFrom(address user, address spender, uint160 amount, address token) external;
function permit(address owner, PermitSingle memory permitSingle, bytes calldata signature) external;
function allowance(address user, address token, address spender) external view returns (PackedAllowance memory);
}
文件 9 的 18：IPresaleEth.sol
pragma solidity 0.8.24;
interface IPresaleEth {
struct StageData {
uint128 cost;
uint128 amount;
uint128 maxAmount;
}
event TokensBought(address indexed token, address indexed user, address indexed referrer, uint256 amount);
event StageUpdated(uint256 currentStage);
function updateProtocolWallet(address wallet) external;
function setStage(uint128 cost, uint128 amount, uint128 maxAmount) external;
function updateTotalSold(uint256 amount) external;
function pause() external;
function unpause() external;
function depositUSDT(uint256 amount, address referrer, bytes memory signature) external;
}
文件 10 的 18：IWETH.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
interface IWETH is IERC20 {
event Deposit(address indexed dst, uint256 wad);
event Withdrawal(address indexed src, uint256 wad);
function deposit() external payable;
function withdraw(uint256 amount) external;
}
文件 11 的 18：Math.sol
pragma solidity ^0.8.0;
library Math {
enum Rounding {
Down,
Up,
Zero
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function average(uint256 a, uint256 b) internal pure returns (uint256) {
return (a & b) + (a ^ b) / 2;
}
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
return a == 0 ? 0 : (a - 1) / b + 1;
}
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
uint256 prod0;
uint256 prod1;
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
if (prod1 == 0) {
return prod0 / denominator;
}
require(denominator > prod1, "Math: mulDiv overflow");
uint256 remainder;
assembly {
remainder := mulmod(x, y, denominator)
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
uint256 twos = denominator & (~denominator + 1);
assembly {
denominator := div(denominator, twos)
prod0 := div(prod0, twos)
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
uint256 inverse = (3 * denominator) ^ 2;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
result = prod0 * inverse;
return result;
}
}
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 result = 1 << (log2(a) >> 1);
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
文件 12 的 18：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() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
文件 13 的 18：Pausable.sol
pragma solidity ^0.8.0;
import "../utils/Context.sol";
abstract contract Pausable is Context {
event Paused(address account);
event Unpaused(address account);
bool private _paused;
constructor() {
_paused = false;
}
modifier whenNotPaused() {
_requireNotPaused();
_;
}
modifier whenPaused() {
_requirePaused();
_;
}
function paused() public view virtual returns (bool) {
return _paused;
}
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
文件 14 的 18：PresaleEth.sol
pragma solidity 0.8.24;
import { IERC20, SafeERC20 } from "@1inch/solidity-utils/contracts/libraries/SafeERC20.sol";
import "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "./interfaces/IPresaleEth.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
contract PresaleEth is IPresaleEth, Ownable, Pausable{
using SafeERC20 for IERC20;
using ECDSA for bytes32;
uint256 public constant STABLETOKEN_PRICE = 1e8;
uint8 public constant PRICEFEED_DECIMALS = 8;
uint8 public constant TOKEN_PRECISION = 18;
uint8 public constant STABLE_TOKEN_PRECISION = 6;
uint256 public currentTimestamp;
AggregatorV3Interface public immutable COIN_PRICE_FEED;
IERC20 public immutable usdtToken;
address public protocolWallet;
address private signerAddress;
uint256 public totalTokensSold;
uint256 public totalSoldInUSD;
uint256 public stageIterator;
StageData[] public stages;
mapping(address user => uint256 balance) public balances;
mapping(address user => mapping(uint256 stageIterator => uint256 balance)) public balancesPerStage;
constructor(
AggregatorV3Interface COIN_PRICE_FEED_,
IERC20 usdtToken_,
address protocolWallet_,
address signerAddress_
) {
COIN_PRICE_FEED = COIN_PRICE_FEED_;
usdtToken = usdtToken_;
protocolWallet = protocolWallet_;
signerAddress = signerAddress_;
_pause();
}
function getMessageHash() public view returns (bytes32) {
return keccak256(abi.encodePacked(Strings.toHexString(uint256(uint160(msg.sender)))));
}
function getEthSignedMessageHash(bytes32 _messageHash) public pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", _messageHash));
}
function verify(bytes memory signature) private view returns (bool) {
bytes32 messageHash = getMessageHash();
bytes32 ethSignedMessageHash = getEthSignedMessageHash(messageHash);
address signer = ethSignedMessageHash.recover(signature);
return signer == signerAddress;
}
function numberOfStages() external view returns (uint256) {
return stages.length;
}
function getBalance(address addr) external view returns (uint256) {
return balances[addr];
}
function currentStageAmount() external view returns (uint256) {
require(stages.length > 0, "pre_sale_not_started_error");
return stages[stageIterator].amount;
}
function currentStageCost() external view returns (uint256) {
require(stages.length > 0, "pre_sale_not_started_error");
return stages[stageIterator].cost;
}
function getCoinPrice() external view returns (int256) {
int256 coinPrice;
(, coinPrice, , , ) = COIN_PRICE_FEED.latestRoundData();
return coinPrice;
}
function updateProtocolWallet(address wallet) external onlyOwner {
require(wallet != address(0), "address_cannot_be_null");
protocolWallet = wallet;
}
function setStage(uint128 cost, uint128 amount, uint128 maxAmount) external onlyOwner {
stages.push(StageData(cost, amount, maxAmount));
stageIterator = stages.length - 1;
emit StageUpdated(stageIterator);
}
function updateTotalSold(uint256 amount) external onlyOwner {
totalTokensSold = amount;
}
function pause() external onlyOwner {
_pause();
}
function unpause() external onlyOwner {
require(stages.length > 0, "one_stage_need_to_be_added_before_unpause_error");
_unpause();
}
function rescueFunds(IERC20 token, uint256 amount) external onlyOwner {
if (address(token) == address(0)) {
require(amount <= address(this).balance, "presale_wrong_amount_error");
(bool success, ) = payable(msg.sender).call{value: amount}("");
require(success, "payout_transfer_coin_fail");
} else {
require(amount <= token.balanceOf(address(this)), "presale_wrong_amount_error");
token.safeTransfer(protocolWallet, amount);
}
}
function depositUSDT(uint256 amount, address referrer, bytes memory signature) external whenNotPaused {
require(verify(signature), "verification_failed");
(uint256 chargeBack, uint256 spendedValue) = _depositChecksAndEffects(usdtToken, msg.sender, amount, 2);
_depositInteractions(usdtToken, amount, chargeBack, spendedValue);
emit TokensBought(address(usdtToken), msg.sender, referrer, spendedValue);
}
function depositCoin(address referrer, bytes memory signature) public payable whenNotPaused {
require(verify(signature), "verification_failed");
(uint256 chargeBack, uint256 spendedValue) = _depositChecksAndEffects(IERC20(address(0)), msg.sender, msg.value, 1);
(bool success, ) = payable(protocolWallet).call{value: spendedValue}("");
require(success, "presale_coin_transfer_failed_error");
if(chargeBack > 0) {
(success, ) = payable(msg.sender).call{value: chargeBack}("");
require(success, "presale_coin_transfer_failed_error");
}
emit TokensBought(address(0), msg.sender, referrer, spendedValue);
}
function _depositChecksAndEffects(
IERC20 token,
address to,
uint256 value,
uint256 isStableToken
) internal returns (uint256 chargeBack, uint256 spendedValue) {
require(stages[stageIterator].amount != 0, "presale_ended_error");
(uint256 tokensToTransfer, uint256 coinPrice) = _calculateAmount(isStableToken, value);
(chargeBack, spendedValue) = _purchase(token, to, coinPrice, tokensToTransfer, value);
}
function _depositInteractions(
IERC20 token,
uint256 amount,
uint256 chargeBack,
uint256 spendedValue
) private {
token.safeTransferFrom(msg.sender, address(this), amount);
token.safeTransfer(protocolWallet, spendedValue);
if(chargeBack > 0) token.safeTransfer(msg.sender, chargeBack);
}
function _calculateAmount(uint256 isStableToken, uint256 value) private view returns (uint256 amount, uint256 price) {
int256 coinPriceFeed;
uint256 coinPrice;
uint256 PRECISION;
if (isStableToken == 2) {
coinPrice = STABLETOKEN_PRICE;
PRECISION = STABLE_TOKEN_PRECISION;
} else {
(, coinPriceFeed, , , ) = COIN_PRICE_FEED.latestRoundData();
coinPrice = uint(coinPriceFeed);
PRECISION = TOKEN_PRECISION;
}
uint256 expectedAmount = coinPrice * value / stages[stageIterator].cost;
return (expectedAmount / 10 ** (PRECISION), coinPrice);
}
function _purchase(
IERC20 token,
address to,
uint256 coinPrice,
uint256 amount,
uint256 value
) private returns (uint256 tokensToChargeBack, uint256 spendedValue) {
StageData storage crtStage = stages[stageIterator];
require(balancesPerStage[to][stageIterator] < crtStage.maxAmount, "maximum_allocation_error");
if (uint(crtStage.amount) < amount) {
spendedValue = crtStage.amount * crtStage.cost;
} else {
spendedValue = amount * crtStage.cost;
}
if(uint(crtStage.maxAmount) - uint(balancesPerStage[to][stageIterator]) < amount) {
spendedValue = (uint(crtStage.maxAmount) - uint(balancesPerStage[to][stageIterator])) * crtStage.cost;
}
totalSoldInUSD += spendedValue;
if(address(token) == address(0)) {
uint256 usdInEth = 1 ether / coinPrice;
spendedValue *= usdInEth;
} else {
spendedValue /= 10 ** (PRICEFEED_DECIMALS - STABLE_TOKEN_PRECISION);
}
if (uint(crtStage.amount) < amount) {
balances[to] += crtStage.amount;
totalTokensSold += crtStage.amount;
balancesPerStage[to][stageIterator] += crtStage.amount;
tokensToChargeBack = value - spendedValue;
crtStage.amount = 0;
_pause();
} else if((uint(crtStage.maxAmount) - uint(balancesPerStage[to][stageIterator])) < amount ) {
uint amountReduced = uint(crtStage.maxAmount) - uint(balancesPerStage[to][stageIterator]);
balances[to] += amountReduced;
balancesPerStage[to][stageIterator] += amountReduced;
totalTokensSold += amountReduced;
crtStage.amount -= uint128(amountReduced);
} else {
balances[to] += amount;
balancesPerStage[to][stageIterator] += amount;
totalTokensSold += amount;
crtStage.amount -= uint128(amount);
}
}
}
文件 15 的 18：RevertReasonForwarder.sol
pragma solidity ^0.8.0;
library RevertReasonForwarder {
function reRevert() internal pure {
assembly ("memory-safe") {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
function reReason() internal pure returns (bytes memory reason) {
assembly ("memory-safe") {
reason := mload(0x40)
let length := returndatasize()
mstore(reason, length)
returndatacopy(add(reason, 0x20), 0, length)
mstore(0x40, add(reason, add(0x20, length)))
}
}
}
文件 16 的 18：SafeERC20.sol
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
import "../interfaces/IDaiLikePermit.sol";
import "../interfaces/IPermit2.sol";
import "../interfaces/IERC7597Permit.sol";
import "../interfaces/IWETH.sol";
import "../libraries/RevertReasonForwarder.sol";
library SafeERC20 {
error SafeTransferFailed();
error SafeTransferFromFailed();
error ForceApproveFailed();
error SafeIncreaseAllowanceFailed();
error SafeDecreaseAllowanceFailed();
error SafePermitBadLength();
error Permit2TransferAmountTooHigh();
address private constant _PERMIT2 = 0x000000000022D473030F116dDEE9F6B43aC78BA3;
bytes4 private constant _PERMIT_LENGTH_ERROR = 0x68275857;
uint256 private constant _RAW_CALL_GAS_LIMIT = 5000;
function safeBalanceOf(
IERC20 token,
address account
) internal view returns(uint256 tokenBalance) {
bytes4 selector = IERC20.balanceOf.selector;
assembly ("memory-safe") {
mstore(0x00, selector)
mstore(0x04, account)
let success := staticcall(gas(), token, 0x00, 0x24, 0x00, 0x20)
tokenBalance := mload(0)
if or(iszero(success), lt(returndatasize(), 0x20)) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
function safeTransferFromUniversal(
IERC20 token,
address from,
address to,
uint256 amount,
bool permit2
) internal {
if (permit2) {
safeTransferFromPermit2(token, from, to, amount);
} else {
safeTransferFrom(token, from, to, amount);
}
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 amount
) internal {
bytes4 selector = token.transferFrom.selector;
bool success;
assembly ("memory-safe") {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), from)
mstore(add(data, 0x24), to)
mstore(add(data, 0x44), amount)
success := call(gas(), token, 0, data, 100, 0x0, 0x20)
if success {
switch returndatasize()
case 0 {
success := gt(extcodesize(token), 0)
}
default {
success := and(gt(returndatasize(), 31), eq(mload(0), 1))
}
}
}
if (!success) revert SafeTransferFromFailed();
}
function safeTransferFromPermit2(
IERC20 token,
address from,
address to,
uint256 amount
) internal {
if (amount > type(uint160).max) revert Permit2TransferAmountTooHigh();
bytes4 selector = IPermit2.transferFrom.selector;
bool success;
assembly ("memory-safe") {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), from)
mstore(add(data, 0x24), to)
mstore(add(data, 0x44), amount)
mstore(add(data, 0x64), token)
success := call(gas(), _PERMIT2, 0, data, 0x84, 0x0, 0x0)
if success {
success := gt(extcodesize(_PERMIT2), 0)
}
}
if (!success) revert SafeTransferFromFailed();
}
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
if (!_makeCall(token, token.transfer.selector, to, value)) {
revert SafeTransferFailed();
}
}
function forceApprove(
IERC20 token,
address spender,
uint256 value
) internal {
if (!_makeCall(token, token.approve.selector, spender, value)) {
if (
!_makeCall(token, token.approve.selector, spender, 0) ||
!_makeCall(token, token.approve.selector, spender, value)
) {
revert ForceApproveFailed();
}
}
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 allowance = token.allowance(address(this), spender);
if (value > type(uint256).max - allowance) revert SafeIncreaseAllowanceFailed();
forceApprove(token, spender, allowance + value);
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 allowance = token.allowance(address(this), spender);
if (value > allowance) revert SafeDecreaseAllowanceFailed();
forceApprove(token, spender, allowance - value);
}
function safePermit(IERC20 token, bytes calldata permit) internal {
if (!tryPermit(token, msg.sender, address(this), permit)) RevertReasonForwarder.reRevert();
}
function safePermit(IERC20 token, address owner, address spender, bytes calldata permit) internal {
if (!tryPermit(token, owner, spender, permit)) RevertReasonForwarder.reRevert();
}
function tryPermit(IERC20 token, bytes calldata permit) internal returns(bool success) {
return tryPermit(token, msg.sender, address(this), permit);
}
function tryPermit(IERC20 token, address owner, address spender, bytes calldata permit) internal returns(bool success) {
bytes4 permitSelector = IERC20Permit.permit.selector;
bytes4 daiPermitSelector = IDaiLikePermit.permit.selector;
bytes4 permit2Selector = IPermit2.permit.selector;
bytes4 erc7597PermitSelector = IERC7597Permit.permit.selector;
assembly ("memory-safe") {
let ptr := mload(0x40)
switch permit.length
case 100 {
mstore(ptr, permitSelector)
mstore(add(ptr, 0x04), owner)
mstore(add(ptr, 0x24), spender)
{
let deadline := shr(224, calldataload(add(permit.offset, 0x20)))
let vs := calldataload(add(permit.offset, 0x44))
calldatacopy(add(ptr, 0x44), permit.offset, 0x20)
mstore(add(ptr, 0x64), sub(deadline, 1))
mstore(add(ptr, 0x84), add(27, shr(255, vs)))
calldatacopy(add(ptr, 0xa4), add(permit.offset, 0x24), 0x20)
mstore(add(ptr, 0xc4), shr(1, shl(1, vs)))
}
success := call(gas(), token, 0, ptr, 0xe4, 0, 0)
}
case 72 {
mstore(ptr, daiPermitSelector)
mstore(add(ptr, 0x04), owner)
mstore(add(ptr, 0x24), spender)
{
let expiry := shr(224, calldataload(add(permit.offset, 0x04)))
let vs := calldataload(add(permit.offset, 0x28))
mstore(add(ptr, 0x44), shr(224, calldataload(permit.offset)))
mstore(add(ptr, 0x64), sub(expiry, 1))
mstore(add(ptr, 0x84), true)
mstore(add(ptr, 0xa4), add(27, shr(255, vs)))
calldatacopy(add(ptr, 0xc4), add(permit.offset, 0x08), 0x20)
mstore(add(ptr, 0xe4), shr(1, shl(1, vs)))
}
success := call(gas(), token, 0, ptr, 0x104, 0, 0)
}
case 224 {
mstore(ptr, permitSelector)
calldatacopy(add(ptr, 0x04), permit.offset, permit.length)
success := call(gas(), token, 0, ptr, 0xe4, 0, 0)
}
case 256 {
mstore(ptr, daiPermitSelector)
calldatacopy(add(ptr, 0x04), permit.offset, permit.length)
success := call(gas(), token, 0, ptr, 0x104, 0, 0)
}
case 96 {
mstore(ptr, permit2Selector)
mstore(add(ptr, 0x04), owner)
mstore(add(ptr, 0x24), token)
calldatacopy(add(ptr, 0x50), permit.offset, 0x14)
mstore(add(ptr, 0x64), and(0xffffffffffff, sub(shr(224, calldataload(add(permit.offset, 0x14))), 1)))
mstore(add(ptr, 0x84), shr(224, calldataload(add(permit.offset, 0x18))))
mstore(add(ptr, 0xa4), spender)
mstore(add(ptr, 0xc4), and(0xffffffffffff, sub(shr(224, calldataload(add(permit.offset, 0x1c))), 1)))
mstore(add(ptr, 0xe4), 0x100)
mstore(add(ptr, 0x104), 0x40)
calldatacopy(add(ptr, 0x124), add(permit.offset, 0x20), 0x20)
calldatacopy(add(ptr, 0x144), add(permit.offset, 0x40), 0x20)
success := call(gas(), _PERMIT2, 0, ptr, 0x164, 0, 0)
}
case 352 {
mstore(ptr, permit2Selector)
calldatacopy(add(ptr, 0x04), permit.offset, permit.length)
success := call(gas(), _PERMIT2, 0, ptr, 0x164, 0, 0)
}
default {
mstore(ptr, erc7597PermitSelector)
calldatacopy(add(ptr, 0x04), permit.offset, permit.length)
success := call(gas(), token, 0, ptr, add(permit.length, 4), 0, 0)
}
}
}
function _makeCall(
IERC20 token,
bytes4 selector,
address to,
uint256 amount
) private returns (bool success) {
assembly ("memory-safe") {
let data := mload(0x40)
mstore(data, selector)
mstore(add(data, 0x04), to)
mstore(add(data, 0x24), amount)
success := call(gas(), token, 0, data, 0x44, 0x0, 0x20)
if success {
switch returndatasize()
case 0 {
success := gt(extcodesize(token), 0)
}
default {
success := and(gt(returndatasize(), 31), eq(mload(0), 1))
}
}
}
}
function safeDeposit(IWETH weth, uint256 amount) internal {
if (amount > 0) {
bytes4 selector = IWETH.deposit.selector;
assembly ("memory-safe") {
mstore(0, selector)
if iszero(call(gas(), weth, amount, 0, 4, 0, 0)) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
}
function safeWithdraw(IWETH weth, uint256 amount) internal {
bytes4 selector = IWETH.withdraw.selector;
assembly ("memory-safe") {
mstore(0, selector)
mstore(4, amount)
if iszero(call(gas(), weth, 0, 0, 0x24, 0, 0)) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
function safeWithdrawTo(IWETH weth, uint256 amount, address to) internal {
safeWithdraw(weth, amount);
if (to != address(this)) {
assembly ("memory-safe") {
if iszero(call(_RAW_CALL_GAS_LIMIT, to, amount, 0, 0, 0, 0)) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
}
}
}
}
文件 17 的 18：SignedMath.sol
pragma solidity ^0.8.0;
library SignedMath {
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
function average(int256 a, int256 b) internal pure returns (int256) {
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
function abs(int256 n) internal pure returns (uint256) {
unchecked {
return uint256(n >= 0 ? n : -n);
}
}
}
文件 18 的 18：Strings.sol
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
{
"compilationTarget": {
"contracts/PresaleEth.sol": "PresaleEth"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 1000000
},
"remappings": []
}[{"inputs":[{"internalType":"contract AggregatorV3Interface","name":"COIN_PRICE_FEED_","type":"address"},{"internalType":"contract IERC20","name":"usdtToken_","type":"address"},{"internalType":"address","name":"protocolWallet_","type":"address"},{"internalType":"address","name":"signerAddress_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"SafeTransferFailed","type":"error"},{"inputs":[],"name":"SafeTransferFromFailed","type":"error"},{"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":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"currentStage","type":"uint256"}],"name":"StageUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"referrer","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokensBought","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"COIN_PRICE_FEED","outputs":[{"internalType":"contract AggregatorV3Interface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PRICEFEED_DECIMALS","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STABLETOKEN_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STABLE_TOKEN_PRECISION","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TOKEN_PRECISION","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"balances","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"stageIterator","type":"uint256"}],"name":"balancesPerStage","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentStageAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentStageCost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"referrer","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"depositCoin","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"referrer","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"depositUSDT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCoinPrice","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_messageHash","type":"bytes32"}],"name":"getEthSignedMessageHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getMessageHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"numberOfStages","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"rescueFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint128","name":"cost","type":"uint128"},{"internalType":"uint128","name":"amount","type":"uint128"},{"internalType":"uint128","name":"maxAmount","type":"uint128"}],"name":"setStage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stageIterator","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stages","outputs":[{"internalType":"uint128","name":"cost","type":"uint128"},{"internalType":"uint128","name":"amount","type":"uint128"},{"internalType":"uint128","name":"maxAmount","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSoldInUSD","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalTokensSold","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":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"updateProtocolWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"updateTotalSold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"usdtToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
