// File: @openzeppelin/contracts/GSN/Context.sol
pragma solidity ^0.5.0;
/*
* @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 GSN 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.
*/
contract Context {
// Empty internal constructor, to prevent people from mistakenly deploying
// an instance of this contract, which should be used via inheritance.
constructor () internal { }
// solhint-disable-previous-line no-empty-blocks
function _msgSender() internal view returns (address payable) {
return msg.sender;
}
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// File: @openzeppelin/contracts/ownership/Ownable.sol
pragma solidity ^0.5.0;
/**
* @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.
*
* 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.
*/
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 () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(isOwner(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Returns true if the caller is the current owner.
*/
function isOwner() public view returns (bool) {
return _msgSender() == _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 onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
*/
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// File: @openzeppelin/contracts/math/SafeMath.sol
pragma solidity ^0.5.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
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.
*
* _Available since v2.4.0._
*/
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.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
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.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
// File: @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/IERC20.sol
pragma solidity ^0.5.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @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: contracts/Not_upgradable_done/MultiPoolZapV1_4.sol
// Copyright (C) 2019, 2020 dipeshsukhani, nodar, suhailg, apoorvlathey
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// Visit <https://www.gnu.org/licenses/>for a copy of the GNU Affero General Public License
pragma solidity ^0.5.0;
interface UniswapFactoryInterface {
function getExchange(address token) external view returns (address exchange);
}
interface UniswapExchangeInterface {
function tokenToEthTransferInput(uint256 tokens_sold, uint256 min_eth, uint256 deadline, address recipient) external returns (uint256 eth_bought);
function getTokenToEthInputPrice(uint256 tokens_sold) external view returns (uint256 eth_bought);
}
interface uniswapPoolZap {
function LetsInvest(address _TokenContractAddress, address _towhomtoissue) external payable returns (uint256);
}
/**
@title Multiple Pool Zap
@author Zapper
@notice Use this contract to Add liquidity to Multiple Uniswap Pools at once using ETH or ERC20
*/
contract MultiPoolZapV1_4 is Ownable {
using SafeMath for uint;
uniswapPoolZap public uniswapPoolZapAddress;
UniswapFactoryInterface public UniswapFactory;
uint16 public goodwill;
address payable public dzgoodwillAddress;
mapping(address => uint256) private userBalance;
constructor(uint16 _goodwill, address payable _dzgoodwillAddress) public {
goodwill = _goodwill;
dzgoodwillAddress = _dzgoodwillAddress;
uniswapPoolZapAddress = uniswapPoolZap(0x97402249515994Cc0D22092D3375033Ad0ea438A);
UniswapFactory = UniswapFactoryInterface(0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95);
}
function set_new_goodwill(uint16 _new_goodwill) public onlyOwner {
require(
_new_goodwill > 0 && _new_goodwill < 10000,
"GoodWill Value not allowed"
);
goodwill = _new_goodwill;
}
function set_new_dzgoodwillAddress(address payable _new_dzgoodwillAddress)
public
onlyOwner
{
dzgoodwillAddress = _new_dzgoodwillAddress;
}
function set_uniswapPoolZapAddress(address _uniswapPoolZapAddress) onlyOwner public {
uniswapPoolZapAddress = uniswapPoolZap(_uniswapPoolZapAddress);
}
function set_UniswapFactory(address _UniswapFactory) onlyOwner public {
UniswapFactory = UniswapFactoryInterface(_UniswapFactory);
}
/**
@notice Add liquidity to Multiple Uniswap Pools at once using ETH or ERC20
@param _IncomingTokenContractAddress The token address for ERC20 being deposited. Input address(0) in case of ETH deposit.
@param _IncomingTokenQty Quantity of ERC20 being deposited. 0 in case of ETH deposit.
@param underlyingTokenAddresses Array of Token Addresses to which's Uniswap Pool to add liquidity to.
@param respectiveWeightedValues Array of Relative Ratios (corresponding to underlyingTokenAddresses) to proportionally distribute received ETH or ERC20 into various pools.
*/
function multipleZapIn(address _IncomingTokenContractAddress, uint256 _IncomingTokenQty, address[] memory underlyingTokenAddresses, uint256[] memory respectiveWeightedValues) public payable {
uint totalWeights;
require(underlyingTokenAddresses.length == respectiveWeightedValues.length);
for(uint i=0;i<underlyingTokenAddresses.length;i++) {
totalWeights = (totalWeights).add(respectiveWeightedValues[i]);
}
uint256 eth2Trade;
if (msg.value > 0) {
require (_IncomingTokenContractAddress == address(0), "Incoming token address should be address(0)");
eth2Trade = msg.value;
} else if(_IncomingTokenContractAddress == address(0) && msg.value == 0) {
revert("Please send ETH along with function call");
} else if(_IncomingTokenContractAddress != address(0)) {
require(msg.value == 0, "Cannot send Tokens and ETH at the same time");
require(
IERC20(_IncomingTokenContractAddress).transferFrom(
msg.sender,
address(this),
_IncomingTokenQty
),
"Error in transferring ERC20"
);
eth2Trade = _token2Eth(
_IncomingTokenContractAddress,
_IncomingTokenQty,
address(this)
);
}
uint goodwillPortion = ((eth2Trade).mul(goodwill)).div(10000);
uint totalInvestable = (eth2Trade).sub(goodwillPortion);
uint totalLeftToBeInvested = totalInvestable;
require(address(dzgoodwillAddress).send(goodwillPortion));
uint residualETH;
for (uint i=0;i<underlyingTokenAddresses.length;i++) {
uint LPT = uniswapPoolZapAddress.LetsInvest.value((((totalInvestable).mul(respectiveWeightedValues[i])).div(totalWeights)+residualETH))(underlyingTokenAddresses[i], address(this));
IERC20(UniswapFactory.getExchange(address(underlyingTokenAddresses[i]))).transfer(msg.sender, LPT);
totalLeftToBeInvested = (totalLeftToBeInvested).sub(((totalInvestable).mul(respectiveWeightedValues[i])).div(totalWeights));
residualETH = (address(this).balance).sub(totalLeftToBeInvested);
}
if(address(this).balance >= 250000000000000000){
totalInvestable = address(this).balance;
totalLeftToBeInvested = totalInvestable;
residualETH = 0;
for (uint i=0;i<underlyingTokenAddresses.length;i++) {
uint LPT = uniswapPoolZapAddress.LetsInvest.value((((totalInvestable).mul(respectiveWeightedValues[i])).div(totalWeights)+residualETH))(underlyingTokenAddresses[i], address(this));
IERC20(UniswapFactory.getExchange(address(underlyingTokenAddresses[i]))).transfer(msg.sender, LPT);
totalLeftToBeInvested = (totalLeftToBeInvested).sub(((totalInvestable).mul(respectiveWeightedValues[i])).div(totalWeights));
residualETH = (address(this).balance).sub(totalLeftToBeInvested);
}
}
userBalance[msg.sender] = address(this).balance;
require (send_out_eth(msg.sender));
}
/**
@notice This function swaps ERC20 to ERC20 via Uniswap
@param _FromTokenContractAddress Address of Token to swap
@param tokens2Trade The quantity of tokens to swap
@param _toWhomToIssue Address of user to send the swapped ETH to
@return The amount of ETH Received.
*/
function _token2Eth(
address _FromTokenContractAddress,
uint256 tokens2Trade,
address _toWhomToIssue
) internal returns (uint256 ethBought) {
UniswapExchangeInterface FromUniSwapExchangeContractAddress
= UniswapExchangeInterface(
UniswapFactory.getExchange(_FromTokenContractAddress)
);
IERC20(_FromTokenContractAddress).approve(
address(FromUniSwapExchangeContractAddress),
tokens2Trade
);
ethBought = FromUniSwapExchangeContractAddress.tokenToEthTransferInput(
tokens2Trade,
((FromUniSwapExchangeContractAddress.getTokenToEthInputPrice(tokens2Trade)).mul(99).div(100)),
SafeMath.add(block.timestamp, 300),
_toWhomToIssue
);
require(ethBought > 0, "Error in swapping Eth: 1");
}
/**
@notice This function sends the user's remaining ETH back to them.
@param _towhomtosendtheETH The Address of the user
@return Boolean corresponding to successful execution.
*/
function send_out_eth(address _towhomtosendtheETH) internal returns (bool) {
require(userBalance[_towhomtosendtheETH] > 0);
uint256 amount = userBalance[_towhomtosendtheETH];
userBalance[_towhomtosendtheETH] = 0;
(bool success, ) = _towhomtosendtheETH.call.value(amount)("");
return success;
}
// - fallback function let you / anyone send ETH to this wallet without the need to call any function
function() external payable {
}
}
{
"compilationTarget": {
"MultiPoolZapV1_4.sol": "MultiPoolZapV1_4"
},
"evmVersion": "petersburg",
"libraries": {},
"optimizer": {
"enabled": true,
"runs": 500
},
"remappings": []
}
[{"inputs":[{"internalType":"uint16","name":"_goodwill","type":"uint16"},{"internalType":"address payable","name":"_dzgoodwillAddress","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":true,"inputs":[],"name":"UniswapFactory","outputs":[{"internalType":"contract UniswapFactoryInterface","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"dzgoodwillAddress","outputs":[{"internalType":"address payable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"goodwill","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_IncomingTokenContractAddress","type":"address"},{"internalType":"uint256","name":"_IncomingTokenQty","type":"uint256"},{"internalType":"address[]","name":"underlyingTokenAddresses","type":"address[]"},{"internalType":"uint256[]","name":"respectiveWeightedValues","type":"uint256[]"}],"name":"multipleZapIn","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_UniswapFactory","type":"address"}],"name":"set_UniswapFactory","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"_new_dzgoodwillAddress","type":"address"}],"name":"set_new_dzgoodwillAddress","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint16","name":"_new_goodwill","type":"uint16"}],"name":"set_new_goodwill","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_uniswapPoolZapAddress","type":"address"}],"name":"set_uniswapPoolZapAddress","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"uniswapPoolZapAddress","outputs":[{"internalType":"contract uniswapPoolZap","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}]