Contract Source Code:
File 1 of 1 : EthRewards
/*
https://twitter.com/EthereumGoderc
https://t.me/+gsbe33EMQ3I2OGNl
egodeth.vip
*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
return account.code.length > 0;
}
function sendValue(address payable recipient, uint256 amt) internal {
require(address(this).balance >= amt, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amt}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "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);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
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 _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");
}
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amt) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amt) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amt) external returns (bool);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract ERC20 is Context, IERC20 {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amt) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amt);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amt) public virtual override returns (bool) {
_approve(_msgSender(), spender, amt);
return true;
}
function transferFrom(address sender, address recipient, uint256 amt) public virtual override returns (bool) {
_transfer(sender, recipient, amt);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amt, "ERC20: transfer amt exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amt);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(address sender, address recipient, uint256 amt) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
uint256 senderBalance = _balances[sender];
require(senderBalance >= amt, "ERC20: transfer amt exceeds balance");
unchecked {
_balances[sender] = senderBalance - amt;
}
_balances[recipient] += amt;
emit Transfer(sender, recipient, amt);
}
function _createInitialSupply(address account, uint256 amt) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amt;
_balances[account] += amt;
emit Transfer(address(0), account, amt);
}
function _approve(address owner, address spender, uint256 amt) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amt;
emit Approval(owner, spender, amt);
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() external virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IDexRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
function swapExactTokensForTokensSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, address referrer, uint deadline) external;
function addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function addLiquidity(address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline) external returns (uint amountA, uint amountB, uint liquidity);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function removeLiquidity(address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline) external returns (uint amountA, uint amountB);
}
interface DividendPayingTokenOptionalInterface {
/// @notice View the amt of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) external view returns(uint256);
/// @notice View the amt of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) external view returns(uint256);
/// @notice View the amt of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) external view returns(uint256);
}
interface DividendPayingTokenInterface {
/// @notice View the amt of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) external view returns(uint256);
/// @notice Distributes ether to token holders as dividends.
/// @dev SHOULD distribute the paid ether to token holders as dividends.
/// SHOULD NOT directly transfer ether to token holders in this function.
/// MUST emit a `DividendsDistributed` event when the amt of distributed ether is greater than 0.
function distributeDividends() external payable;
/// @notice Withdraws the ether distributed to the sender.
/// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.
/// MUST emit a `DividendWithdrawn` event if the amt of ether transferred is greater than 0.
function withdrawDividend() external;
/// @dev This event MUST emit when ether is distributed to token holders.
/// @param from The address which sends ether to this contract.
/// @param weiAmt The amt of distributed ether in wei.
event DividendsDistributed(
address indexed from,
uint256 weiAmt
);
/// @dev This event MUST emit when an address withdraws their dividend.
/// @param to The address which withdraws ether from this contract.
/// @param weiAmt The amt of withdrawn ether in wei.
event DividendWithdrawn(
address indexed to,
uint256 weiAmt
);
}
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
}
library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
int256 b = int256(a);
require(b >= 0);
return b;
}
}
contract DividendPayingToken is DividendPayingTokenInterface, DividendPayingTokenOptionalInterface, Ownable {
using SafeMath for uint256;
using SafeMathUint for uint256;
using SafeMathInt for int256;
// With `magnitude`, we can properly distribute dividends even if the amt of received ether is small.
// For more discussion about choosing the value of `magnitude`,
// see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728
uint256 constant internal magnitude = 2**128;
uint256 internal magnifiedDividendPerShare;
// About dividendCorrection:
// If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.
// When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),
// `dividendOf(_user)` should not be changed,
// but the computed value of `dividendPerShare * balanceOf(_user)` is changed.
// To keep the `dividendOf(_user)` unchanged, we add a correction term:
// `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,
// where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:
// `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.
// So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.
mapping(address => int256) internal magnifiedDividendCorrections;
mapping(address => uint256) internal withdrawnDividends;
mapping (address => uint256) public holderBalance;
uint256 public totalBalance;
uint256 public totalDividendsDistributed;
/// @dev Distributes dividends whenever ether is paid to this contract.
receive() external payable {
distributeDividends();
}
/// @notice Distributes ether to token holders as dividends.
/// @dev It reverts if the total supply of tokens is 0.
/// It emits the `DividendsDistributed` event if the amt of received ether is greater than 0.
/// About undistributed ether:
/// In each distribution, there is a small amt of ether not distributed,
/// the magnified amt of which is
/// `(msg.value * magnitude) % totalSupply()`.
/// With a well-chosen `magnitude`, the amt of undistributed ether
/// (de-magnified) in a distribution can be less than 1 wei.
/// We can actually keep track of the undistributed ether in a distribution
/// and try to distribute it in the next distribution,
/// but keeping track of such data on-chain costs much more than
/// the saved ether, so we don't do that.
function distributeDividends() public override payable {
if(totalBalance > 0){
uint256 amt = msg.value;
if (amt > 0) {
magnifiedDividendPerShare = magnifiedDividendPerShare.add(
(amt).mul(magnitude) / totalBalance
);
emit DividendsDistributed(msg.sender, amt);
totalDividendsDistributed = totalDividendsDistributed.add(amt);
}
}
}
/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amt of withdrawn ether is greater than 0.
function withdrawDividend() public virtual override {
_withdrawDividendOfUser(payable(msg.sender));
}
/// @notice Withdraws the ether distributed to the sender.
/// @dev It emits a `DividendWithdrawn` event if the amt of withdrawn ether is greater than 0.
function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
uint256 _withdrawableDividend = withdrawableDividendOf(user);
if (_withdrawableDividend > 0) {
withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
emit DividendWithdrawn(user, _withdrawableDividend);
bool success;
(success,) = address(user).call{value: _withdrawableDividend}("");
return _withdrawableDividend;
}
return 0;
}
/// @notice View the amt of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` can withdraw.
function dividendOf(address _owner) public view override returns(uint256) {
return withdrawableDividendOf(_owner);
}
/// @notice View the amt of dividend in wei that an address can withdraw.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` can withdraw.
function withdrawableDividendOf(address _owner) public view override returns(uint256) {
return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
}
/// @notice View the amt of dividend in wei that an address has withdrawn.
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` has withdrawn.
function withdrawnDividendOf(address _owner) public view override returns(uint256) {
return withdrawnDividends[_owner];
}
/// @notice View the amt of dividend in wei that an address has earned in total.
/// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
/// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude
/// @param _owner The address of a token holder.
/// @return The amt of dividend in wei that `_owner` has earned in total.
function accumulativeDividendOf(address _owner) public view override returns(uint256) {
return magnifiedDividendPerShare.mul(holderBalance[_owner]).toInt256Safe()
.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
}
/// @dev Internal function that increases tokens to an account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account that will receive the created tokens.
/// @param value The amt that will be created.
function _increase(address account, uint256 value) internal {
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
/// @dev Internal function that reduces an amt of the token of a given account.
/// Update magnifiedDividendCorrections to keep dividends unchanged.
/// @param account The account whose tokens will be burnt.
/// @param value The amt that will be burnt.
function _reduce(address account, uint256 value) internal {
magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
}
function _setBalance(address account, uint256 newBalance) internal {
uint256 currentBalance = holderBalance[account];
holderBalance[account] = newBalance;
if(newBalance > currentBalance) {
uint256 increaseAmt = newBalance.sub(currentBalance);
_increase(account, increaseAmt);
totalBalance += increaseAmt;
} else if(newBalance < currentBalance) {
uint256 reduceAmt = currentBalance.sub(newBalance);
_reduce(account, reduceAmt);
totalBalance -= reduceAmt;
}
}
}
contract DividendTracker is DividendPayingToken {
using SafeMath for uint256;
using SafeMathInt for int256;
Map private tokenHoldersMap;
uint256 public lastProcessedIndex;
mapping (address => bool) public excludedFromDividends;
mapping (address => uint256) public lastClaimTimes;
uint256 public claimWait;
uint256 public immutable minimumTokenBalanceForDividends;
event ExcludeFromDividends(address indexed account);
event IncludeInDividends(address indexed account);
event ClaimWaitUpdated(uint256 indexed newValue, uint256 indexed oldValue);
event Claim(address indexed account, uint256 amt, bool indexed automatic);
constructor() {
claimWait = 1;
minimumTokenBalanceForDividends = 1;
}
struct Map {
address[] keys;
mapping(address => uint) values;
mapping(address => uint) indexOf;
mapping(address => bool) inserted;
}
function get(address key) private view returns (uint) {
return tokenHoldersMap.values[key];
}
function getIndexOfKey(address key) private view returns (int) {
if(!tokenHoldersMap.inserted[key]) {
return -1;
}
return int(tokenHoldersMap.indexOf[key]);
}
function getKeyAtIndex(uint index) private view returns (address) {
return tokenHoldersMap.keys[index];
}
function size() private view returns (uint) {
return tokenHoldersMap.keys.length;
}
function set(address key, uint val) private {
if (tokenHoldersMap.inserted[key]) {
tokenHoldersMap.values[key] = val;
} else {
tokenHoldersMap.inserted[key] = true;
tokenHoldersMap.values[key] = val;
tokenHoldersMap.indexOf[key] = tokenHoldersMap.keys.length;
tokenHoldersMap.keys.push(key);
}
}
function remove(address key) private {
if (!tokenHoldersMap.inserted[key]) {
return;
}
delete tokenHoldersMap.inserted[key];
delete tokenHoldersMap.values[key];
uint index = tokenHoldersMap.indexOf[key];
uint lastIndex = tokenHoldersMap.keys.length - 1;
address lastKey = tokenHoldersMap.keys[lastIndex];
tokenHoldersMap.indexOf[lastKey] = index;
delete tokenHoldersMap.indexOf[key];
tokenHoldersMap.keys[index] = lastKey;
tokenHoldersMap.keys.pop();
}
function excludeFromDividends(address account) external onlyOwner {
excludedFromDividends[account] = true;
_setBalance(account, 0);
remove(account);
emit ExcludeFromDividends(account);
}
function includeInDividends(address account) external onlyOwner {
require(excludedFromDividends[account]);
excludedFromDividends[account] = false;
emit IncludeInDividends(account);
}
function updateClaimWait(uint256 newClaimWait) external onlyOwner {
require(newClaimWait >= 1200 && newClaimWait <= 86400, "Dividend_Tracker: claimWait must be updated to between 1 and 24 hours");
require(newClaimWait != claimWait, "Dividend_Tracker: Cannot update claimWait to same value");
emit ClaimWaitUpdated(newClaimWait, claimWait);
claimWait = newClaimWait;
}
function getLastProcessedIndex() external view returns(uint256) {
return lastProcessedIndex;
}
function getNumberOfTokenHolders() external view returns(uint256) {
return tokenHoldersMap.keys.length;
}
function getAccount(address _account)
public view returns (
address account,
int256 index,
int256 iterationsUntilProcessed,
uint256 withdrawableDividends,
uint256 totalDividends,
uint256 lastClaimTime,
uint256 nextClaimTime,
uint256 secondsUntilAutoClaimAvailable) {
account = _account;
index = getIndexOfKey(account);
iterationsUntilProcessed = -1;
if(index >= 0) {
if(uint256(index) > lastProcessedIndex) {
iterationsUntilProcessed = index.sub(int256(lastProcessedIndex));
}
else {
uint256 processesUntilEndOfArray = tokenHoldersMap.keys.length > lastProcessedIndex ?
tokenHoldersMap.keys.length.sub(lastProcessedIndex) :
0;
iterationsUntilProcessed = index.add(int256(processesUntilEndOfArray));
}
}
withdrawableDividends = withdrawableDividendOf(account);
totalDividends = accumulativeDividendOf(account);
lastClaimTime = lastClaimTimes[account];
nextClaimTime = lastClaimTime > 0 ?
lastClaimTime.add(claimWait) :
0;
secondsUntilAutoClaimAvailable = nextClaimTime > block.timestamp ?
nextClaimTime.sub(block.timestamp) :
0;
}
function getAccountAtIndex(uint256 index)
public view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
if(index >= size()) {
return (0x0000000000000000000000000000000000000000, -1, -1, 0, 0, 0, 0, 0);
}
address account = getKeyAtIndex(index);
return getAccount(account);
}
function canAutoClaim(uint256 lastClaimTime) private view returns (bool) {
if(lastClaimTime > block.timestamp) {
return false;
}
return block.timestamp.sub(lastClaimTime) >= claimWait;
}
function setBalance(address payable account, uint256 newBalance) external onlyOwner {
if(excludedFromDividends[account]) {
return;
}
if(newBalance >= minimumTokenBalanceForDividends) {
_setBalance(account, newBalance);
set(account, newBalance);
}
else {
_setBalance(account, 0);
remove(account);
}
processAccount(account, true);
}
function process(uint256 gas) public returns (uint256, uint256, uint256) {
uint256 numberOfTokenHolders = tokenHoldersMap.keys.length;
if(numberOfTokenHolders == 0) {
return (0, 0, lastProcessedIndex);
}
uint256 _lastProcessedIndex = lastProcessedIndex;
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
uint256 iterations = 0;
uint256 claims = 0;
while(gasUsed < gas && iterations < numberOfTokenHolders) {
_lastProcessedIndex++;
if(_lastProcessedIndex >= tokenHoldersMap.keys.length) {
_lastProcessedIndex = 0;
}
address account = tokenHoldersMap.keys[_lastProcessedIndex];
if(canAutoClaim(lastClaimTimes[account])) {
if(processAccount(payable(account), true)) {
claims++;
}
}
iterations++;
uint256 newGasLeft = gasleft();
if(gasLeft > newGasLeft) {
gasUsed = gasUsed.add(gasLeft.sub(newGasLeft));
}
gasLeft = newGasLeft;
}
lastProcessedIndex = _lastProcessedIndex;
return (iterations, claims, lastProcessedIndex);
}
function processAccount(address payable account, bool automatic) public onlyOwner returns (bool) {
uint256 amt = _withdrawDividendOfUser(account);
if(amt > 0) {
lastClaimTimes[account] = block.timestamp;
emit Claim(account, amt, automatic);
return true;
}
return false;
}
}
interface IDexFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface ILpPair {
function sync() external;
}
contract EthRewards is ERC20, Ownable {
uint256 public maxBuyAmt;
uint256 public maxSellAmt;
uint256 public maxWalletAmt;
DividendTracker public dividendTracker;
IDexRouter public immutable dexRouter;
address public lpPair;
IERC20 public REWARDTOKEN;
address public REWARDPAIRTOKEN;
bool private swapping;
uint256 public swapTokensAtAmt;
address public marketingAddress;
uint256 public tradingLiveBlock = 0; // 0 means trading is not active
uint256 private blockForPenaltyEnd;
bool public limitsActive = true;
bool public tradingLive = false;
bool public swapEnabled = false;
uint256 public constant FEE_DIVISOR = 10000;
uint256 public buyTotalTax;
uint256 public buyLiquidityTax;
uint256 public buyMarketingTax;
uint256 public buyRewardTax;
uint256 public sellTotalTax;
uint256 public sellMarketingTax;
uint256 public sellLiquidityTax;
uint256 public sellRewardTax;
uint256 public tokensForMarketing;
uint256 public tokensForLiquidity;
uint256 public tokensForReward;
mapping (address => bool) private _isExcludedFromTax;
mapping (address => bool) public _isExcludedMaxTransactionAmt;
mapping (address => bool) public automatedMarketMakerPairs;
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event StartedTrading();
event RemovedLimits();
event ExcludeFromTax(address indexed account, bool isExcluded);
event UpdatedMaxBuyAmt(uint256 newAmt);
event UpdatedMaxSellAmt(uint256 newAmt);
event UpdatedMaxWalletAmt(uint256 newAmt);
event UpdatedBuyTax(uint256 newAmt);
event UpdatedSellTax(uint256 newAmt);
event UpdatedMarketingAddress(address indexed newWallet);
event MaxTransactionExclusion(address _address, bool excluded);
event OwnerForcedSwapBack(uint256 timestamp);
event TransferForeignToken(address token, uint256 amt);
constructor() ERC20("Ethereum", "eGOD") payable {
address _dexRouter;
if(block.chainid == 1){
_dexRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // Ethereum: Uniswap V2
} else if(block.chainid == 56){
_dexRouter = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // PCS V2
} else {
revert("Chain not configured");
}
dividendTracker = new DividendTracker();
address newOwner = msg.sender; // can leave alone if owner is deployer.
dexRouter = IDexRouter(_dexRouter);
uint256 totalSupply = 1000000000 * 1e18;
maxBuyAmt = totalSupply * 2 / 100;
maxSellAmt = totalSupply * 2/ 100;
maxWalletAmt = totalSupply * 2 / 100;
swapTokensAtAmt = totalSupply * 25 / 100000;
buyMarketingTax = 800;
buyLiquidityTax = 0;
buyRewardTax = 200;
buyTotalTax = buyMarketingTax + buyLiquidityTax + buyRewardTax;
sellMarketingTax = 3700;
sellLiquidityTax = 0;
sellRewardTax = 300;
sellTotalTax = sellMarketingTax + sellLiquidityTax + sellRewardTax;
// @dev update these!
marketingAddress = address(msg.sender);
// create pair
lpPair = IDexFactory(dexRouter.factory()).createPair(address(this), dexRouter.WETH());
_excludeFromMaxTransaction(address(lpPair), true);
setAutomatedMarketMakerPair(address(lpPair), true);
_excludeFromMaxTransaction(newOwner, true);
_excludeFromMaxTransaction(address(this), true);
_excludeFromMaxTransaction(address(dexRouter), true);
_excludeFromMaxTransaction(address(0xdead), true);
_excludeFromMaxTransaction(address(marketingAddress), true);
// exclude from receiving dividends
dividendTracker.excludeFromDividends(address(dividendTracker));
dividendTracker.excludeFromDividends(address(this));
dividendTracker.excludeFromDividends(address(dexRouter));
dividendTracker.excludeFromDividends(newOwner);
dividendTracker.excludeFromDividends(address(0xdead));
excludeFromTax(newOwner, true);
excludeFromTax(address(this), true);
excludeFromTax(address(dexRouter), true);
excludeFromTax(address(0xdead), true);
excludeFromTax(address(marketingAddress), true);
transferOwnership(newOwner);
_approve(address(this), address(dexRouter), type(uint256).max);
_createInitialSupply(address(this), totalSupply - balanceOf(newOwner));
}
// excludes wallets and contracts from dividends (such as CEX hotwallets, etc.)
function excludeFromDividends(address account) external onlyOwner {
dividendTracker.excludeFromDividends(account);
}
// removes exclusion on wallets and contracts from dividends (such as CEX hotwallets, etc.)
function includeInDividends(address account) external onlyOwner {
dividendTracker.includeInDividends(account);
}
// remove limits after token is stable
function removeLimits() external onlyOwner {
limitsActive = false;
emit RemovedLimits();
}
function updateMaxBuyAmt(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() * 1 / 100)/1e18, "Cannot set max sell amt lower than 1%");
maxBuyAmt = newNum * (10**18);
emit UpdatedMaxBuyAmt(maxBuyAmt);
}
function updateMaxSellAmt(uint256 newNum) external onlyOwner {
require(newNum >= (totalSupply() * 1 / 100)/1e18, "Cannot set max sell amt lower than 1%");
maxSellAmt = newNum * (10**18);
emit UpdatedMaxSellAmt(maxSellAmt);
}
function removeMaxWallet() external onlyOwner {
maxWalletAmt = totalSupply();
emit UpdatedMaxWalletAmt(maxWalletAmt);
}
function updateSwapTokensAtAmt(uint256 newAmt) external onlyOwner {
require(newAmt >= totalSupply() * 1 / 1000000, "Swap amt cannot be lower than 0.0001% total supply.");
require(newAmt <= totalSupply() * 1 / 1000, "Swap amt cannot be higher than 0.1% total supply.");
swapTokensAtAmt = newAmt;
}
function _excludeFromMaxTransaction(address updAds, bool isExcluded) private {
_isExcludedMaxTransactionAmt[updAds] = isExcluded;
emit MaxTransactionExclusion(updAds, isExcluded);
}
function airdropToWallets(address[] memory wallets, uint256[] memory amountsInWei) external onlyOwner {
require(wallets.length == amountsInWei.length, "arrays must be the same length");
require(wallets.length < 600, "Can only airdrop 600 wallets per txn due to gas limits");
for(uint256 i = 0; i < wallets.length; i++){
super._transfer(msg.sender, wallets[i], amountsInWei[i]);
dividendTracker.setBalance(payable(wallets[i]), balanceOf(wallets[i]));
}
}
function excludeFromMaxTransaction(address updAds, bool isEx) external onlyOwner {
if(!isEx){
require(updAds != lpPair, "Cannot remove uniswap pair from max txn");
}
_isExcludedMaxTransactionAmt[updAds] = isEx;
}
function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
require(pair != lpPair || value, "The pair cannot be removed from automatedMarketMakerPairs");
automatedMarketMakerPairs[pair] = value;
_excludeFromMaxTransaction(pair, value);
if(value) {
dividendTracker.excludeFromDividends(pair);
}
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateBuyTax(uint256 _marketingTax, uint256 _liquidityTax, uint256 _rewardTax) external onlyOwner {
buyMarketingTax = _marketingTax;
buyLiquidityTax = _liquidityTax;
buyRewardTax = _rewardTax;
buyTotalTax = buyMarketingTax + buyLiquidityTax + buyRewardTax;
require(buyTotalTax <= 2000, "Must keep tax at 20% or less");
emit UpdatedBuyTax(buyTotalTax);
}
function updateSellTax(uint256 _marketingTax, uint256 _liquidityTax, uint256 _rewardTax) external onlyOwner {
sellMarketingTax = _marketingTax;
sellLiquidityTax = _liquidityTax;
sellRewardTax = _rewardTax;
sellTotalTax = sellMarketingTax + sellLiquidityTax + sellRewardTax;
require(sellTotalTax <= 5000, "Must keep tax at 50% or less");
emit UpdatedSellTax(sellTotalTax);
}
function excludeFromTax(address account, bool excluded) public onlyOwner {
_isExcludedFromTax[account] = excluded;
emit ExcludeFromTax(account, excluded);
}
function updateClaimWait(uint256 claimWait) external onlyOwner {
dividendTracker.updateClaimWait(claimWait);
}
function getClaimWait() external view returns(uint256) {
return dividendTracker.claimWait();
}
function getTotalDividendsDistributed() external view returns (uint256) {
return dividendTracker.totalDividendsDistributed();
}
function withdrawableDividendOf(address account) public view returns(uint256) {
return dividendTracker.withdrawableDividendOf(account);
}
function dividendTokenBalanceOf(address account) public view returns (uint256) {
return dividendTracker.holderBalance(account);
}
function getAccountDividendsInfo(address account)
external view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
return dividendTracker.getAccount(account);
}
function getAccountDividendsInfoAtIndex(uint256 index)
external view returns (
address,
int256,
int256,
uint256,
uint256,
uint256,
uint256,
uint256) {
return dividendTracker.getAccountAtIndex(index);
}
function claim() external {
dividendTracker.processAccount(payable(msg.sender), false);
}
function getLastProcessedIndex() external view returns(uint256) {
return dividendTracker.getLastProcessedIndex();
}
function getNumberOfDividendTokenHolders() external view returns(uint256) {
return dividendTracker.getNumberOfTokenHolders();
}
function getNumberOfDividends() external view returns(uint256) {
return dividendTracker.totalBalance();
}
function _transfer(address from, address to, uint256 amt) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if(amt == 0){
super._transfer(from, to, 0);
return;
}
if(!tradingLive){
require(_isExcludedFromTax[from] || _isExcludedFromTax[to], "Trading is not active.");
}
if(_isExcludedFromTax[from] || _isExcludedFromTax[to] || swapping){
super._transfer(from, to, amt);
dividendTracker.setBalance(payable(from), balanceOf(from));
dividendTracker.setBalance(payable(to), balanceOf(to));
return;
}
if(limitsActive){
if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !_isExcludedFromTax[from] && !_isExcludedFromTax[to]){
//when buy
if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmt[to]) {
require(amt <= maxBuyAmt, "Buy transfer amt exceeds the max buy.");
require(amt + balanceOf(to) <= maxWalletAmt, "Cannot Exceed max wallet");
}
//when sell
else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmt[from]) {
require(amt <= maxSellAmt, "Sell transfer amt exceeds the max sell.");
}
else if (!_isExcludedMaxTransactionAmt[to]){
require(amt + balanceOf(to) <= maxWalletAmt, "Cannot Exceed max wallet");
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmt;
if(canSwap && swapEnabled && !swapping && automatedMarketMakerPairs[to]) {
swapping = true;
swapBack();
swapping = false;
}
bool takeTax = true;
// if any account belongs to _isExcludedFromTax account then remove the tax
if(_isExcludedFromTax[from] || _isExcludedFromTax[to]) {
takeTax = false;
}
uint256 tax = 0;
// only take tax on buys/sells, do not take on wallet transfers
if(takeTax){
if(earlyBuyPenaltyInEffect() && automatedMarketMakerPairs[from] && !automatedMarketMakerPairs[to] && !_isExcludedFromTax[to] && buyTotalTax > 0){
tax = amt * 9900 / FEE_DIVISOR;
tokensForLiquidity += tax * buyLiquidityTax / buyTotalTax;
tokensForMarketing += tax * buyMarketingTax / buyTotalTax;
tokensForReward += tax * buyRewardTax / buyTotalTax;
}
// on sell
else if (automatedMarketMakerPairs[to] && sellTotalTax > 0){
tax = amt * sellTotalTax / FEE_DIVISOR;
tokensForLiquidity += tax * sellLiquidityTax / sellTotalTax;
tokensForMarketing += tax * sellMarketingTax / sellTotalTax;
tokensForReward += tax * sellRewardTax / sellTotalTax;
}
// on buy
else if(automatedMarketMakerPairs[from] && buyTotalTax > 0) {
tax = amt * buyTotalTax / FEE_DIVISOR;
tokensForMarketing += tax * buyMarketingTax / buyTotalTax;
tokensForLiquidity += tax * buyLiquidityTax / buyTotalTax;
tokensForReward += tax * buyRewardTax / buyTotalTax;
}
if(tax > 0){
super._transfer(from, address(this), tax);
}
amt -= tax;
}
super._transfer(from, to, amt);
dividendTracker.setBalance(payable(from), balanceOf(from));
dividendTracker.setBalance(payable(to), balanceOf(to));
}
function swapTokenForETH(uint256 tokenAmt) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmt,
0, // accept any amt of ETH
path,
address(this),
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForReward;
if(contractBalance == 0 || totalTokensToSwap == 0) {return;}
if(contractBalance > swapTokensAtAmt * 40){
contractBalance = swapTokensAtAmt * 40;
}
if(tokensForLiquidity > 0){
uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap;
super._transfer(address(this), lpPair, liquidityTokens);
try ILpPair(lpPair).sync(){} catch {}
contractBalance -= liquidityTokens;
totalTokensToSwap -= tokensForLiquidity;
tokensForLiquidity = 0;
}
if(contractBalance > 0){
bool success;
swapTokenForETH(contractBalance);
if(tokensForReward > 0){
uint256 rewardTokens = tokensForReward * address(this).balance / totalTokensToSwap;
(success,) = address(dividendTracker).call{value: rewardTokens}("");
}
if(tokensForMarketing > 0){
(success,) = address(marketingAddress).call{value: address(this).balance}("");
}
tokensForMarketing = 0;
tokensForReward = 0;
}
}
function setMarketingAddress(address _marketingAddress) external onlyOwner {
require(_marketingAddress != address(0), "address cannot be 0");
marketingAddress = payable(_marketingAddress);
emit UpdatedMarketingAddress(_marketingAddress);
}
// force Swap back if slippage issues.
function forceSwapBack() external onlyOwner {
require(balanceOf(address(this)) >= swapTokensAtAmt, "Can only swap when token amt is at or higher than restriction");
swapping = true;
swapBack();
swapping = false;
emit OwnerForcedSwapBack(block.timestamp);
}
function transferForeignToken(address _token, address _to) external onlyOwner {
require(_token != address(0), "_token address cannot be 0");
require(_token != address(this) || !tradingLive, "Can't withdraw native tokens");
uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
SafeERC20.safeTransfer(IERC20(_token),_to, _contractBalance);
emit TransferForeignToken(_token, _contractBalance);
}
function enableTrading(uint256 blocksForPenalty) external onlyOwner {
require(!tradingLive, "Trading is already active, cannot relaunch.");
tradingLive = true;
swapEnabled = true;
tradingLiveBlock = block.number;
blockForPenaltyEnd = tradingLiveBlock + blocksForPenalty;
}
function earlyBuyPenaltyInEffect() public view returns (bool){
return block.number < blockForPenaltyEnd;
}
receive() external payable {}
}