// File: github/Tuleva-AG/disatok/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity >=0.8.10;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = '0123456789abcdef';
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return '0';
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return '0x00';
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
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] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, 'Strings: hex length insufficient');
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: github/Tuleva-AG/disatok/contracts/utils/Context.sol
/**
* Tuleva
* From: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol
*/
// OpenZeppelin Contracts v4.3.2 (utils/Context.sol)
pragma solidity >=0.8.10;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: github/Tuleva-AG/disatok/contracts/contracts/Ownable.sol
/**
* Tuleva
* From: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol
*/
// OpenZeppelin Contracts v4.3.2 (access/Ownable.sol)
pragma solidity >=0.8.10;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), 'Ownable: caller is not the owner');
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
revert('renounceOwnership is not supported, please transfer ownership');
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), 'Ownable: new owner is the zero address');
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: github/Tuleva-AG/disatok/contracts/IERC20.sol
/**
* Tuleva
* From: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol
*/
// OpenZeppelin Contracts v4.3.2 (token/ERC20/IERC20.sol)
pragma solidity >=0.8.10;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/*
function addNewSupply(uint256 amount) external returns (uint256);
function setSalesAccount(address account) external;
function setFeeAccount(address account) external;
*/
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: github/Tuleva-AG/disatok/contracts/extensions/IERC20Metadata.sol
/**
* Tuleva
* From: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/IERC20Metadata.sol
*/
// OpenZeppelin Contracts v4.3.2 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity >=0.8.10;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: github/Tuleva-AG/disatok/contracts/DISATOK.sol
/**
* Tuleva
* https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol
*/
pragma solidity >=0.8.10;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract Disatok is Ownable, IERC20, IERC20Metadata {
string private constant _name = 'DISATOK';
string private constant _symbol = 'DISA';
uint8 private constant _decimals = 8;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _feeExcludes;
uint256 private _totalSupply = 10000000 * 10**_decimals;
uint256 private _taxFee;
address private _accountFee;
address private _accountSales;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(
address initalAccountSales,
address initialAccountFee,
uint256 initalTaxFee
) {
_accountSales = initalAccountSales;
_accountFee = initialAccountFee;
_taxFee = initalTaxFee;
//exclude owner and this contract from fee
_feeExcludes[owner()] = true;
_feeExcludes[_accountSales] = true;
_feeExcludes[_accountFee] = true;
_balances[owner()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
uint256 transferAmount = _transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= transferAmount, 'transfer amount exceeds allowance');
unchecked {
_approve(sender, _msgSender(), currentAllowance - transferAmount);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual returns (uint256) {
require(sender != address(0), 'transfer from the zero address');
require(recipient != address(0), 'transfer to the zero address');
// delete
//_beforeTokenTransfer(sender, recipient, amount);
uint256 transferAmount = amount;
uint256 senderBalance = _balances[sender];
bool noFee = isExcludedFromFee(sender) || isExcludedFromFee(recipient);
if (noFee) {
require(senderBalance >= amount, 'transfer amount exceeds balance');
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
} else {
uint256 fee = _calculateTaxFee(amount);
uint256 senderAmount = amount + fee;
transferAmount = senderAmount;
string memory errorMessage = string(abi.encodePacked('transfer amount exceeds balance. transfer amount incl. sales fee is', ' ', Strings.toString(transferAmount)));
require(senderBalance >= senderAmount, errorMessage);
unchecked {
_balances[sender] = senderBalance - senderAmount;
}
_balances[_accountFee] += fee;
_balances[recipient] += amount;
emit Transfer(sender, _accountFee, fee);
emit Transfer(sender, recipient, amount);
}
return transferAmount;
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), 'approve from the zero address');
require(spender != address(0), 'approve to the zero address');
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
event ExcludeFromFee(address account);
function excludeFromFee(address account) public onlyOwner {
emit ExcludeFromFee(account);
_feeExcludes[account] = true;
}
event IncludeInFee(address account);
function includeInFee(address account) public onlyOwner {
emit IncludeInFee(account);
_feeExcludes[account] = false;
}
function isExcludedFromFee(address account) public view returns (bool) {
return _feeExcludes[account];
}
event SetTaxFeePercent(uint256 newTaxFee);
function setTaxFeePercent(uint256 newTaxFee) external onlyOwner {
emit SetTaxFeePercent(newTaxFee);
_taxFee = newTaxFee;
}
function _calculateTaxFee(uint256 _amount) private view returns (uint256) {
return (_amount * (_taxFee)) / 100;
}
event AddNewSupply(uint256 amount);
function addNewSupply(uint256 amount) public onlyOwner returns (uint256) {
emit AddNewSupply(amount);
require(amount > 0, 'new amount must be greater than 0');
uint256 newSupply = amount * 10**_decimals;
_totalSupply += newSupply;
_balances[owner()] += newSupply;
emit Transfer(address(0), owner(), newSupply);
return _totalSupply;
}
event SetSalesAccount(address account);
function setSalesAccount(address account) public onlyOwner {
emit SetSalesAccount(account);
_feeExcludes[_accountSales] = false;
_feeExcludes[account] = true;
_accountSales = account;
}
event SetFeeAccount(address account);
function setFeeAccount(address account) public onlyOwner {
emit SetFeeAccount(account);
_feeExcludes[_accountFee] = false;
_feeExcludes[account] = true;
_accountFee = account;
}
event TransferOwnership(address newOwner);
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* overwrites functionality
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public override onlyOwner {
emit TransferOwnership(newOwner);
require(newOwner != address(0), 'Ownable: new owner is the zero address');
address oldOwner = owner();
_transferOwnership(newOwner);
_feeExcludes[oldOwner] = false;
_feeExcludes[newOwner] = true;
}
function taxFee() public view virtual returns (uint256) {
return _taxFee;
}
}
{
"compilationTarget": {
"Disatok.sol": "Disatok"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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