Contract Name:
UnipumpDefaults
Contract Source Code:
File 1 of 1 : UnipumpDefaults
pragma solidity ^0.7.0;
/**
* @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);
/**
* @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: browser/IUnipumpDrain.sol
interface IUnipumpDrain
{
function drain(address token) external;
}
// File: browser/openzeppelin/Context.sol
abstract contract UnipumpErc20Helper
{
function transferMax(address token, address from, address to)
internal
returns (uint256 amountTransferred)
{
uint256 balance = IERC20(token).balanceOf(from);
if (balance == 0) { return 0; }
uint256 allowed = IERC20(token).allowance(from, to);
amountTransferred = allowed > balance ? balance : allowed;
if (amountTransferred == 0) { return 0; }
require (IERC20(token).transferFrom(from, to, amountTransferred), "Transfer failed");
}
}
// File: browser/IUnipumpContest.sol
interface IUnipumpContest
{
}
// File: browser/IUnipump.sol
interface IUnipump is IERC20 {
event Sale(bool indexed _saleActive);
event LiquidityCrisis();
function WETH() external view returns (address);
function groupManager() external view returns (IUnipumpGroupManager);
function escrow() external view returns (IUnipumpEscrow);
function staking() external view returns (IUnipumpStaking);
function contest() external view returns (IUnipumpContest);
function init(
IUnipumpEscrow _escrow,
IUnipumpStaking _staking) external;
function startUnipumpSale(uint256 _tokensPerEth, uint256 _maxSoldEth) external;
function start(
IUnipumpGroupManager _groupManager,
IUnipumpContest _contest) external;
function isSaleActive() external view returns (bool);
function tokensPerEth() external view returns (uint256);
function maxSoldEth() external view returns (uint256);
function soldEth() external view returns (uint256);
function buy() external payable;
function minSecondsUntilLiquidityCrisis() external view returns (uint256);
function createLiquidityCrisis() external payable;
}
// File: browser/UnipumpDrain.sol
abstract contract UnipumpDrain is IUnipumpDrain
{
address payable immutable drainTarget;
constructor()
{
drainTarget = msg.sender;
}
function drain(address token)
public
override
{
uint256 amount;
if (token == address(0))
{
require (address(this).balance > 0, "Nothing to send");
amount = _drainAmount(token, address(this).balance);
require (amount > 0, "Nothing allowed to send");
(bool success,) = drainTarget.call{ value: amount }("");
require (success, "Transfer failed");
return;
}
amount = IERC20(token).balanceOf(address(this));
require (amount > 0, "Nothing to send");
amount = _drainAmount(token, amount);
require (amount > 0, "Nothing allowed to send");
require (IERC20(token).transfer(drainTarget, amount), "Transfer failed");
}
function _drainAmount(address token, uint256 available) internal virtual returns (uint256 amount);
}
// File: browser/IUnipumpStaking.sol
interface IUnipumpStaking
{
event Stake(address indexed _staker, uint256 _amount, uint256 _epochCount);
event Reward(address indexed _staker, uint256 _reward);
event RewardPotIncrease(uint256 _amount);
function stakingRewardPot() external view returns (uint256);
function currentEpoch() external view returns (uint256);
function nextEpochTimestamp() external view returns (uint256);
function isActivated() external view returns (bool);
function secondsUntilCanActivate() external view returns (uint256);
function totalStaked() external view returns (uint256);
function increaseRewardsPot() external;
function activate() external;
function claimRewardsAt(uint256 index) external;
function claimRewards() external;
function updateEpoch() external returns (bool);
function stakeForProfit(uint256 epochCount) external;
}
// File: browser/IUnipumpEscrow.sol
interface IUnipumpEscrow is IUnipumpDrain
{
function start() external;
function available() external view returns (uint256);
}
// File: browser/IUnipumpTradingGroup.sol
interface IUnipumpTradingGroup
{
function leader() external view returns (address);
function close() external;
function closeWithNonzeroTokenBalances() external;
function anyNonzeroTokenBalances() external view returns (bool);
function tokenList() external view returns (IUnipumpTokenList);
function maxSecondsRemaining() external view returns (uint256);
function group() external view returns (IUnipumpGroup);
function externalBalanceChanges(address token) external view returns (bool);
function startTime() external view returns (uint256);
function endTime() external view returns (uint256);
function maxEndTime() external view returns (uint256);
function startingWethBalance() external view returns (uint256);
function finalWethBalance() external view returns (uint256);
function leaderWethProfitPayout() external view returns (uint256);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
uint256 deadline
)
external
returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
uint256 deadline
)
external
returns (uint256[] memory amounts);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
uint256 deadline
)
external;
function withdraw(address token) external;
}
// File: browser/IUnipumpTokenList.sol
interface IUnipumpTokenList
{
function parentList() external view returns (IUnipumpTokenList);
function isLocked() external view returns (bool);
function tokens(uint256 index) external view returns (address);
function exists(address token) external view returns (bool);
function tokenCount() external view returns (uint256);
function lock() external;
function add(address token) external;
function addMany(address[] calldata _tokens) external;
function remove(address token) external;
}
// File: browser/IUnipumpGroup.sol
interface IUnipumpGroup
{
function contribute() external payable;
function abort() external;
function startPumping() external;
function isActive() external view returns (bool);
function withdraw() external;
function leader() external view returns (address);
function tokenList() external view returns (IUnipumpTokenList);
function leaderUppCollateral() external view returns (uint256);
function requiredMemberUppFee() external view returns (uint256);
function minEthToJoin() external view returns (uint256);
function minEthToStart() external view returns (uint256);
function maxEthAcceptable() external view returns (uint256);
function maxRunTimeSeconds() external view returns (uint256);
function leaderProfitShareOutOf10000() external view returns (uint256);
function memberCount() external view returns (uint256);
function members(uint256 at) external view returns (address);
function contributions(address member) external view returns (uint256);
function totalContributions() external view returns (uint256);
function aborted() external view returns (bool);
function tradingGroup() external view returns (IUnipumpTradingGroup);
}
// File: browser/IUnipumpGroupFactory.sol
interface IUnipumpGroupFactory
{
function createGroup(
address leader,
IUnipumpTokenList unipumpTokenList,
uint256 uppCollateral,
uint256 requiredMemberUppFee,
uint256 minEthToJoin,
uint256 minEthToStart,
uint256 startTimeout,
uint256 maxEthAcceptable,
uint256 maxRunTimeSeconds,
uint256 leaderProfitShareOutOf10000
)
external
returns (IUnipumpGroup unipumpGroup);
}
// File: browser/IUnipumpGroupManager.sol
interface IUnipumpGroupManager
{
function groupLeaders(uint256 at) external view returns (address);
function groupLeaderCount() external view returns (uint256);
function groups(uint256 at) external view returns (IUnipumpGroup);
function groupCount() external view returns (uint256);
function groupCountByLeader(address leader) external view returns (uint256);
function groupsByLeader(address leader, uint256 at) external view returns (IUnipumpGroup);
function createGroup(
IUnipumpTokenList tokenList,
uint256 uppCollateral,
uint256 requiredMemberUppFee,
uint256 minEthToJoin,
uint256 minEthToStart,
uint256 startTimeout,
uint256 maxEthAcceptable,
uint256 maxRunTimeSeconds,
uint256 leaderProfitShareOutOf10000
)
external
returns (IUnipumpGroup group);
}
// File: browser/uniswap/IWETH.sol
pragma solidity >=0.5.0;
interface IWETH {
function deposit() external payable;
function transfer(address to, uint value) external returns (bool);
function withdraw(uint) external;
}
// File: browser/uniswap/IUniswapV2Router01.sol
pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
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 addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
// File: browser/uniswap/IUniswapV2Router02.sol
pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// File: browser/uniswap/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: browser/uniswap/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: browser/openzeppelin/Address.sol
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
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");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// 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
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: browser/openzeppelin/SafeMath.sol
/**
* @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.
*/
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;
}
}
// File: browser/openzeppelin/IERC20.sol
/*
* @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.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// File: browser/openzeppelin/ERC20.sol
/**
* @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 guidelines: functions revert instead
* of 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 ERC20 is Context, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name, string memory symbol) {
_name = name;
_symbol = symbol;
_decimals = 18;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view 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 {_setupDecimals} is
* called.
*
* 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 returns (uint8) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view 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) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is 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 {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements
*
* - `to` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
*
* This is 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), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Sets {decimals} to a value other than the default one of 18.
*
* WARNING: This function should only be called from the constructor. Most
* applications that interact with token contracts will not expect
* {decimals} to ever change, and may work incorrectly if it does.
*/
function _setupDecimals(uint8 decimals_) internal {
_decimals = decimals_;
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
// File: browser/Unipump.sol
contract Unipump is ERC20, UnipumpDrain, IUnipump, UnipumpErc20Helper
{
address payable immutable owner;
IUniswapV2Factory immutable uniswapV2Factory;
IUniswapV2Router02 immutable uniswapV2Router;
address immutable public override WETH;
IUniswapV2Pair public uniswapEthUppPair;
IUnipumpGroupManager public override groupManager;
IUnipumpEscrow public override escrow;
IUnipumpStaking public override staking;
IUnipumpContest public override contest;
uint256 public override tokensPerEth;
uint256 public override maxSoldEth;
uint256 public override soldEth;
uint256 initialLiquidityTokens;
uint256 minLiquidityCrisisTime;
constructor(
IUniswapV2Factory _uniswapV2Factory, // 0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f
IUniswapV2Router02 _uniswapV2Router // 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
)
ERC20("Unipump", "UPP")
{
require (address(_uniswapV2Factory) != address(0));
require (address(_uniswapV2Router) != address(0));
owner = msg.sender;
uniswapV2Factory = _uniswapV2Factory;
uniswapV2Router = _uniswapV2Router;
address weth = _uniswapV2Router.WETH();
WETH = weth;
}
modifier ownerOnly() { require(msg.sender == owner, "Owner only"); _; }
function init(
IUnipumpEscrow _escrow,
IUnipumpStaking _staking
)
public
override
ownerOnly()
{
require (address(_escrow) != address(0));
require (address(_staking) != address(0));
if (address(uniswapEthUppPair) == address(0)) {
uniswapEthUppPair = IUniswapV2Pair(uniswapV2Factory.createPair(WETH, address(this)));
}
else {
require (address(this).balance == 0 && IERC20(WETH).balanceOf(address(this)) == 0, "Already initialized");
}
escrow = _escrow;
staking = _staking;
}
function startUnipumpSale(uint256 _tokensPerEth, uint256 _maxSoldEth)
public
override
ownerOnly()
{
require (address(groupManager) == address(0), "Operations have already begun");
require (tokensPerEth == 0 || _tokensPerEth <= tokensPerEth, "The price can only be pumped higher");
require (_tokensPerEth > 0 || _maxSoldEth == 0);
soldEth = 0;
maxSoldEth = _maxSoldEth;
if (_tokensPerEth > 0) { tokensPerEth = _tokensPerEth; }
emit Sale(true);
}
function isSaleActive()
public
override
view
returns (bool)
{
return tokensPerEth > 0 && soldEth < maxSoldEth;
}
function start(
IUnipumpGroupManager _groupManager,
IUnipumpContest _contest)
public
override
ownerOnly()
{
require (address(_groupManager) != address(0));
require (address(groupManager) == address(0), "Operations cannot be stopped after having been started");
require (address(_contest) != address(0));
maxSoldEth = 0;
groupManager = _groupManager;
contest = _contest;
uint256 sold = totalSupply(); // 'sold' represents 40% of the total supply
require (sold > 0);
uint256 wethBalance = IERC20(WETH).balanceOf(address(this));
uint256 totalLiquidityEth = address(this).balance / 2 + wethBalance / 2;
uint256 totalLiquidityUpp = totalLiquidityEth * tokensPerEth * 9 / 10; // pump price by 10% when uniswap is funded
_mint(address(escrow), sold / 2); // 20% for marketing, team
_mint(address(contest), sold / 4); // 10% for public pump contests
_mint(address(this), totalLiquidityUpp + sold / 4); // liquidity (~20%) for uniswap + 10%
_approve(address(this), address(staking), sold / 4); // 10%
_approve(address(this), address(uniswapV2Router), totalLiquidityUpp);
staking.increaseRewardsPot();
escrow.start();
if (wethBalance < totalLiquidityEth) {
IWETH(WETH).deposit{ value: totalLiquidityEth - wethBalance }();
}
IERC20(WETH).approve(address(uniswapV2Router), totalLiquidityEth);
(,,initialLiquidityTokens) = uniswapV2Router.addLiquidity(
address(this),
WETH,
totalLiquidityUpp,
totalLiquidityEth,
totalLiquidityUpp,
totalLiquidityEth,
address(this),
block.timestamp);
minLiquidityCrisisTime = block.timestamp + 60 * 60 * 24 * 30; // Creating a liquidity crisis isn't available for the first month
emit Sale(false);
}
receive()
external
payable
{
uint256 tokens = tokensPerEth * msg.value;
uint256 sold = soldEth;
require (address(groupManager) == address(0) && tokens > 0 && sold < maxSoldEth, "Tokens are not for sale or you did not send any ETH/WETH");
_mint(msg.sender, tokens);
soldEth = sold + msg.value;
}
function buy()
public
payable
override
{
uint256 wethAmount = transferMax(WETH, msg.sender, address(this));
uint256 totalAmount = wethAmount + msg.value;
uint256 tokens = tokensPerEth * totalAmount;
uint256 sold = soldEth;
require (address(groupManager) == address(0) && tokens > 0 && sold < maxSoldEth, "Tokens are not for sale or you did not send any ETH/WETH");
_mint(msg.sender, tokens);
soldEth = sold + totalAmount;
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {
require (from == address(0) || address(groupManager) != address(0), "The contract has not yet become operational");
super._beforeTokenTransfer(from, to, amount);
}
function minSecondsUntilLiquidityCrisis()
public
view
override
returns (uint256)
{
uint256 min = minLiquidityCrisisTime;
if (min <= block.timestamp) { return 0; }
return min - block.timestamp;
}
// Reduce some liquidity - use to enhance pump effectiveness during bull run!
function createLiquidityCrisis()
external
payable
override
{
require (block.timestamp >= minLiquidityCrisisTime, "It's too early to create a liquidity crisis");
require (msg.sender == owner || msg.value >= 100 ether, "This can only be called by paying 100 ETH");
minLiquidityCrisisTime = block.timestamp + 60 * 60 * 24 * 90; // No more for 3 months;
uint256 liquidity = initialLiquidityTokens / 4;
uint256 balance = uniswapEthUppPair.balanceOf(address(this));
if (liquidity > balance) { liquidity = balance; }
if (liquidity == 0) { return; }
uniswapEthUppPair.approve(address(uniswapV2Router), liquidity);
(uint256 amountToken,) = uniswapV2Router.removeLiquidityETH(
address(this),
liquidity,
0,
0,
owner,
block.timestamp);
_transfer(owner, address(this), amountToken);
_approve(address(this), address(staking), amountToken);
staking.increaseRewardsPot();
emit LiquidityCrisis();
}
function _drainAmount(
address token,
uint256 available
)
internal
override
view
returns (uint256 amount)
{
amount = available;
if (address(groupManager) == address(0) || // Don't allow any drainage until the contract is operational and liquidity funding has been provided
token == address(uniswapEthUppPair)) // Don't allow drainage of liquidity
{
amount = 0;
}
}
}
// File: browser/UnipumpDefaults.sol
contract UnipumpDefaults is Unipump
{
constructor()
Unipump(
IUniswapV2Factory(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f), // uniswap v2 factory on ethereum mainnet
IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D) // uniswap v2 router on ethereum mainnet
)
{ }
}