pragma solidity ^0.4.23; /** * * ERC20 Tokens Hodling * */ contract OwnableContract { address superOwner; constructor() public { superOwner = msg.sender; } modifier onlyOwner() { require(msg.sender == superOwner); _; } function viewSuperOwner() public view returns (address owner) { return superOwner; } function changeOwner(address newOwner) onlyOwner public { superOwner = newOwner; } } contract BlockableContract is OwnableContract { bool public blockedContract; constructor() public { blockedContract = false; } modifier contractActive() { require(!blockedContract); _; } function doBlockContract() onlyOwner public { blockedContract = true; } function unBlockContract() onlyOwner public { blockedContract = false; } } contract ERC20tokensHodl is BlockableContract { uint256 private hodlingTime; struct Safe { uint256 id; uint256 amount; uint256 endtime; address user; address tokenAddress; } /** * @dev safes variables */ mapping(address => uint256[]) public _userSafes; mapping(uint256 => Safe) private _safes; uint256 private _currentIndex; mapping(address => uint256) public _totalSaved; /** * @dev owner variables */ uint256 public comission; //0..100 mapping(address => uint256) private _systemReserves; address[] public _listedReserves; /** * constructor */ constructor() public { hodlingTime = 365 days; _currentIndex = 1; comission = 5; } /** * fallback function to receive donation eth */ function () public payable { require(msg.value > 0); _systemReserves[0x0] = add(_systemReserves[0x0], msg.value); } /** * add new hodl safe (ERC20 token) */ function HodlTokens(address tokenAddress, uint256 amount) public contractActive { require(tokenAddress != 0x0); require(amount > 0); ERC20Interface token = ERC20Interface(tokenAddress); require(token.transferFrom(msg.sender, address(this), amount)); _userSafes[msg.sender].push(_currentIndex); _safes[_currentIndex] = Safe(_currentIndex, amount, now + hodlingTime, msg.sender, tokenAddress); _totalSaved[tokenAddress] = add(_totalSaved[tokenAddress], amount); _currentIndex++; } /** * user, claim back a hodl safe */ function ClaimTokens(uint256 id) public { Safe storage s = _safes[id]; require(s.id != 0); require(s.user == msg.sender); RetireHodl(id); } function RetireHodl(uint256 id) private { Safe storage s = _safes[id]; require(s.id != 0); if(s.endtime < now) //hodl complete { PayToken(s.user, s.tokenAddress, s.amount); } else //hodl still in progress (penalty fee applies) { uint256 realComission = mul(s.amount, comission) / 100; uint256 realAmount = sub(s.amount, realComission); PayToken(s.user, s.tokenAddress, realAmount); StoreComission(s.tokenAddress, realComission); } DeleteSafe(s); } /** * store comission from unfinished hodl */ function StoreComission(address tokenAddress, uint256 amount) private { _systemReserves[tokenAddress] = add(_systemReserves[tokenAddress], amount); bool isNew = true; for(uint256 i = 0; i < _listedReserves.length; i++) { if(_listedReserves[i] == tokenAddress) { isNew = false; break; } } if(isNew) _listedReserves.push(tokenAddress); } /** * private pay token to address */ function PayToken(address user, address tokenAddress, uint256 amount) private { ERC20Interface token = ERC20Interface(tokenAddress); require(token.balanceOf(address(this)) >= amount); token.transfer(user, amount); } /** * delete safe values in storage */ function DeleteSafe(Safe s) private { _totalSaved[s.tokenAddress] = sub(_totalSaved[s.tokenAddress], s.amount); delete _safes[s.id]; uint256[] storage vector = _userSafes[msg.sender]; uint256 size = vector.length; for(uint256 i = 0; i < size; i++) { if(vector[i] == s.id) { vector[i] = vector[size-1]; vector.length--; break; } } } /** * Get current global hodling time */ function GetUserSafesLength() public view returns (uint256 time) { return hodlingTime; } /** * how many safes has the user */ function GetUserSafesLength(address hodler) public view returns (uint256 length) { return _userSafes[hodler].length; } /** * returns safe's values' */ function Getsafe(uint256 _id) public view returns (uint256 id, address user, address tokenAddress, uint256 amount, uint256 time) { Safe storage s = _safes[_id]; return(s.id, s.user, s.tokenAddress, s.amount, s.endtime); } /** * how many tokens are reserved for owner as comission */ function GetReserveAmount(address tokenAddress) public view returns (uint256 amount) { return _systemReserves[tokenAddress]; } /** * ONLY OWNER * * owner retire hodl safe */ function OwnerRetireHodl(uint256 id) public onlyOwner { Safe storage s = _safes[id]; require(s.id != 0); RetireHodl(id); } /** * owner change hodling time */ function ChangeHodlingTime(uint8 newHodlingDays) onlyOwner public { hodlingTime = newHodlingDays * 1 days; } /** * owner change comission value */ function ChangeComission(uint256 newComission) onlyOwner public { comission = newComission; } /** * owner withdraw eth reserved from comissions */ function WithdrawReserves(address tokenAddress) onlyOwner public { require(_systemReserves[tokenAddress] > 0); uint256 amount = _systemReserves[tokenAddress]; _systemReserves[tokenAddress] = 0; ERC20Interface token = ERC20Interface(tokenAddress); require(token.balanceOf(address(this)) >= amount); token.transfer(msg.sender, amount); } /** * owner withdraw token reserved from comission */ function WithdrawAllReserves() onlyOwner public { //eth uint256 x = _systemReserves[0x0]; if(x > 0 && x <= address(this).balance) { _systemReserves[0x0] = 0; msg.sender.transfer( _systemReserves[0x0] ); } //tokens address ta; ERC20Interface token; for(uint256 i = 0; i < _listedReserves.length; i++) { ta = _listedReserves[i]; if(_systemReserves[ta] > 0) { x = _systemReserves[ta]; _systemReserves[ta] = 0; token = ERC20Interface(ta); token.transfer(msg.sender, x); } } _listedReserves.length = 0; } /** * owner remove free eth */ function WithdrawSpecialEth(uint256 amount) onlyOwner public { require(amount > 0); uint256 freeBalance = address(this).balance - _totalSaved[0x0]; require(freeBalance >= amount); msg.sender.transfer(amount); } /** * owner remove free token */ function WithdrawSpecialToken(address tokenAddress, uint256 amount) onlyOwner public { ERC20Interface token = ERC20Interface(tokenAddress); uint256 freeBalance = token.balanceOf(address(this)) - _totalSaved[tokenAddress]; require(freeBalance >= amount); token.transfer(msg.sender, amount); } /** * owner return all tokens to hodlers (in case of emergency) */ function ReturnAllTokens() onlyOwner public { for(uint256 i = 1; i < _currentIndex; i++) { Safe storage s = _safes[i]; PayToken(s.user, s.tokenAddress, s.amount); DeleteSafe(s); } } /** * SAFE MATH FUNCTIONS * * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { if (a == 0) { return 0; } c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 // uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return a / b; } /** * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256 c) { c = a + b; assert(c >= a); return c; } } contract ERC20Interface { /* This is a slight change to the ERC20 base standard. function totalSupply() constant returns (uint256 supply); is replaced with: uint256 public totalSupply; This automatically creates a getter function for the totalSupply. This is moved to the base contract since public getter functions are not currently recognised as an implementation of the matching abstract function by the compiler. */ /// total amount of tokens uint256 public totalSupply; //How many decimals to show. uint256 public decimals; /// @param _owner The address from which the balance will be retrieved /// @return The balance function balanceOf(address _owner) public view returns (uint256 balance); /// @notice send `_value` token to `_to` from `msg.sender` /// @param _to The address of the recipient /// @param _value The amount of token to be transferred /// @return Whether the transfer was successful or not function transfer(address _to, uint256 _value) public returns (bool success); /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` /// @param _from The address of the sender /// @param _to The address of the recipient /// @param _value The amount of token to be transferred /// @return Whether the transfer was successful or not function transferFrom(address _from, address _to, uint256 _value) public returns (bool success); /// @notice `msg.sender` approves `_spender` to spend `_value` tokens /// @param _spender The address of the account able to transfer the tokens /// @param _value The amount of tokens to be approved for transfer /// @return Whether the approval was successful or not function approve(address _spender, uint256 _value) public returns (bool success); /// @param _owner The address of the account owning tokens /// @param _spender The address of the account able to transfer the tokens /// @return Amount of remaining tokens allowed to spent function allowance(address _owner, address _spender) public view returns (uint256 remaining); // solhint-disable-next-line no-simple-event-func-name event Transfer(address indexed _from, address indexed _to, uint256 _value); event Approval(address indexed _owner, address indexed _spender, uint256 _value); }
0.4.23