Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{"Address.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @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
* ====
*
* [IMPORTANT]
* ====
* You shouldn\u0027t rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length \u003e 0;
}
/**
* @dev Replacement for Solidity\u0027s `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 \u003e= amount, "Address: insufficient balance");
(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 \u003e= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn\u0027t, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length \u003e 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
"},"Context.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @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 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;
}
}
"},"IERC20.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @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\u0027s account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, 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\u0027s 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\u0027s 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 `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller\u0027s
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
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);
}
"},"IERC20Metadata.sol":{"content":"// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IERC20.sol";
/**
* @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);
}"},"Ownable.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
import "./Context.sol";
/**
* @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 {
_transferOwnership(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 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);
}
}"},"PresaleManager.sol":{"content":"// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./Address.sol";
import "./Context.sol";
import "./SafeMath.sol";
import "./Ownable.sol";
import "./IERC20.sol";
import "./IERC20Metadata.sol";
import "./SafeERC20.sol";
contract Proxy {
// masterCopy always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
constructor(address _masterCopy) {
require(
_masterCopy != address(0),
"Invalid master copy address provided"
);
bytes32 slot = _IMPLEMENTATION_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
sstore(slot, _masterCopy)
}
}
bytes32 private constant _IMPLEMENTATION_SLOT =
0x6b75c6e3b92dbabf77414617df2d64d6a835b7a3fb3409b21218efb3ac232a7f;
receive() external payable {}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
bytes32 slot = _IMPLEMENTATION_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
let _masterCopy := and(
sload(slot),
0xffffffffffffffffffffffffffffffffffffffff
)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(
calldataload(0),
0xa619486e00000000000000000000000000000000000000000000000000000000
) {
mstore(0, _masterCopy)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(
gas(),
_masterCopy,
0,
calldatasize(),
0,
0
)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
interface ILaunchpad {
function initOwner() external;
function initializePresale(
address,
address,
uint256,
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
) external;
function initializeLock(
uint256,
uint256,
uint256,
uint256,
uint256,
address,
address,
address,
address,
bool
) external;
function endInit() external;
function transferOwnership(address) external;
function updateInfo(string[] memory) external;
function enableWhiteList(uint256) external;
function presaleType() external view returns (string memory);
function logoUrl() external view returns (string memory);
function token() external view returns (address);
function buyToken() external view returns (address);
function total() external view returns (uint256);
function rate() external view returns (uint256);
function softCap() external view returns (uint256);
function hardCap() external view returns (uint256);
function maxBuy() external view returns (uint256);
function whiteListEnableTime() external view returns (uint256);
function totalDepositedBalance() external view returns (uint256);
function liquidity() external view returns (uint256);
function lockPeriod() external view returns (uint256);
function presaleStartTimestamp() external view returns (uint256);
function presaleEndTimestamp() external view returns (uint256);
function refundable() external view returns (bool);
function claimable() external view returns (bool);
function whitelist() external view returns (string memory);
function starred() external view returns (bool);
function isLive() external view returns(bool);
}
interface IFairLaunch {
function initOwner() external;
function initializePresale(
address,
address,
uint256,
uint256,
uint256,
uint256,
uint256
) external;
function initializeLock(
uint256,
uint256,
uint256,
uint256,
address,
address,
address,
bool
) external;
function endInit() external;
function transferOwnership(address) external;
function updateInfo(string[] memory) external;
function enableWhiteList(uint256) external;
}
contract Manager is Ownable {
using SafeMath for uint256;
using SafeERC20 for IERC20;
uint256 public constant FEE_PERCENT_DIVIDOR = 1000;
uint256 public constant VESTING_PERCENT_DIVIDOR = 10000;
uint256 public DEFAULT_MAIN_FEE_OPTION_1 = 50;
uint256 public DEFAULT_TOKEN_FEE_OPTION_1 = 0;
uint256 public DEFAULT_MAIN_FEE_OPTION_2 = 20;
uint256 public DEFAULT_TOKEN_FEE_OPTION_2 = 20;
address payable public feeAddress;
uint256 public serviceFee = 1 ether;
uint256 public starredFee = 0.1 ether;
mapping(address =\u003e bool) public routers;
address public presale;
address public fairPresale;
address public locker;
struct Contribution {
address addr;
address owner;
address token;
uint256 createTime;
bool isLaunchpad;
}
struct LaunchpadInfo {
string presaleType;
address addr;
string logoUrl;
address token;
address buyToken;
uint256 total;
uint256 rate;
uint256 softCap;
uint256 hardCap;
uint256 maxBuy;
uint256 amount;
uint256 liquidity;
uint256 lockTime;
uint256 startTime;
uint256 endTime;
string whitelist;
uint256 whiteListEnableTime;
bool refundable;
bool claimable;
bool starred;
bool isLive;
}
Contribution[] public contributions;
mapping(address =\u003e Contribution[]) public userContributions;
event NewLaunchpadCreated(address indexed user, address indexed launchpad);
constructor(
address payable _feeAddress,
address _presale,
address _fairPresale,
address _locker
) {
feeAddress = _feeAddress;
presale = _presale;
fairPresale = _fairPresale;
locker = _locker;
}
// _values[0] = startTime,
// _values[1] = endTime,
// _values[2] = softCap,
// _values[3] = hardCap,
// _values[4] = minBuy,
// _values[5] = maxBuy,
// _values[6] = rate,
// _values[7] = listingRate,
// _values[8] = liquidity,
// _values[9] = lockPeriod,
// _values[10] = mainFee,
// _values[11] = tokenFee,
// _addresses[0] = token,
// _addresses[1] = buyToken,
// _addresses[2] = router,
// _addresses[3] = backAddress,
// _strings[0] = _info,
// _strings[1] = _logoUrl,
// _strings[2] = _website,
// _strings[3] = _facebook,
// _strings[4] = _twitter,
// _strings[5] = _github,
// _strings[6] = _telegram,
// _strings[7] = _instagram,
// _strings[8] = _discord,
// _strings[9] = _reddit,
// _strings[10] = _youtube,
// _strings[11] = _whitelist
// _options[0] = whitelistOption
// _options[1] = feeOption
// _options[2] = listingOption
// _options[3] = starred
function createNewStandardLaunch(
uint256[] memory _values,
address[] memory _addresses,
string[] memory _strings,
bool[] memory _options
) public payable returns (address) {
uint256 totalFee = _options[3] ? serviceFee + starredFee : serviceFee;
require(msg.value \u003e= totalFee, "should pay creation fee");
Address.sendValue(feeAddress, totalFee);
if (msg.value \u003e totalFee)
Address.sendValue(payable(msg.sender), msg.value - totalFee);
bytes32 salt = keccak256(
abi.encodePacked(_addresses[0], msg.sender, block.timestamp)
);
Proxy newContract = new Proxy{salt: salt}(presale);
address launchpad = address(newContract);
uint256[] memory values = _values;
address[] memory addresses = _addresses;
string[] memory strings = _strings;
// check input param\u0027s validation
require(
!_options[2] || routers[addresses[2]],
"router is not registered"
);
require(
values[0] \u003e block.timestamp,
"startTime should be after than now"
);
require(
values[0] \u003c values[1],
"startTime should be before than endTime"
);
require(values[2] \u003c values[3], "softcap should be less than hardcap");
require(
values[2] \u003e= values[3] / 4,
"softcap must be greater than or equal 25% of hardcap"
);
require(values[4] \u003e 0, "minBuy should be greater than 0");
require(values[4] \u003c values[5], "minBuy should be less than maxBuy");
require(values[6] \u003e 0, "presale rate can\u0027t be zero");
require(!_options[2] || values[7] \u003e 0, "listing rate can\u0027t be zero");
require(
!_options[2] || values[8] \u003e= 500,
"liquidity must be more than 50%"
);
require(
!_options[2] || values[8] \u003c= 1000,
"liquidity must be less than 100%"
);
require(
!_options[2] || values[9] \u003e= 30 days,
"lock time must be longer than 30 days"
);
uint256 tokenAmount = values[3]
.mul(values[6])
.mul(FEE_PERCENT_DIVIDOR + values[11])
.div(FEE_PERCENT_DIVIDOR) +
values[3]
.mul(values[7])
.mul(FEE_PERCENT_DIVIDOR - values[10])
.div(FEE_PERCENT_DIVIDOR)
.mul(values[8])
.div(FEE_PERCENT_DIVIDOR);
uint256 beforeBalance = IERC20(addresses[0]).balanceOf(launchpad);
uint256 decimals = 18;
if (addresses[1] != address(0)) {
decimals = IERC20Metadata(addresses[1]).decimals();
}
IERC20(addresses[0]).safeTransferFrom(
msg.sender,
launchpad,
tokenAmount.div(10**decimals)
);
require(
IERC20(addresses[0]).balanceOf(launchpad) - beforeBalance \u003e=
tokenAmount.div(10**decimals),
"invalid token transfer"
);
ILaunchpad(launchpad).initOwner();
ILaunchpad(launchpad).initializePresale(
addresses[0],
addresses[1],
values[0],
values[1],
values[2],
values[3],
values[4],
values[5],
values[6]
);
bool star = _options[3];
ILaunchpad(launchpad).initializeLock(
values[7],
values[9],
values[10],
values[11],
values[8],
addresses[2],
locker,
feeAddress,
addresses[3],
star
);
ILaunchpad(launchpad).updateInfo(strings);
// if whitelist option enabled
if (_options[0]) ILaunchpad(launchpad).enableWhiteList(values[1]);
// if fee option is mainfee = 5 and tokenfee = 0
if (_options[1])
require(
values[10] == DEFAULT_MAIN_FEE_OPTION_1 \u0026\u0026
values[11] == DEFAULT_TOKEN_FEE_OPTION_1,
"invalid fee value"
);
else
require(
values[10] == DEFAULT_MAIN_FEE_OPTION_2 \u0026\u0026
values[11] == DEFAULT_TOKEN_FEE_OPTION_2,
"invalid fee values"
);
ILaunchpad(launchpad).endInit();
ILaunchpad(launchpad).transferOwnership(msg.sender);
contributions.push(
Contribution({
addr: launchpad,
owner: msg.sender,
token: addresses[0],
createTime: block.timestamp,
isLaunchpad: true
})
);
userContributions[msg.sender].push(
Contribution({
addr: launchpad,
owner: msg.sender,
token: addresses[0],
createTime: block.timestamp,
isLaunchpad: true
})
);
emit NewLaunchpadCreated(msg.sender, launchpad);
return launchpad;
}
// _values[0] = startTime,
// _values[1] = endTime,
// _values[2] = softCap,
// _values[3] = total,
// _values[4] = liquidity,
// _values[5] = lockPeriod,
// _values[6] = mainFee,
// _values[7] = tokenFee,
// _values[8] = maxBuy,
// _addresses[0] = token,
// _addresses[1] = buyToken,
// _addresses[2] = router,
// _strings[0] = _info,
// _strings[1] = _logoUrl,
// _strings[2] = _website,
// _strings[3] = _facebook,
// _strings[4] = _twitter,
// _strings[5] = _github,
// _strings[6] = _telegram,
// _strings[7] = _instagram,
// _strings[8] = _discord,
// _strings[9] = _reddit,
// _strings[10] = _youtube,
// _strings[11] = _whitelist,
// _options[0] = feeOption
// _options[1] = whitelistOption
// _options[2] = starred
function createNewFairLaunch(
uint256[] memory _values,
address[] memory _addresses,
string[] memory _strings,
bool[] memory _options
) public payable returns (address) {
bool[] memory options = _options;
uint256 totalFee = options[2] ? serviceFee + starredFee : serviceFee;
require(msg.value \u003e= totalFee, "should pay creation fee");
Address.sendValue(feeAddress, totalFee);
if (msg.value \u003e totalFee)
Address.sendValue(payable(msg.sender), msg.value - totalFee);
bytes32 salt = keccak256(
abi.encodePacked(_addresses[0], msg.sender, block.timestamp)
);
Proxy newContract = new Proxy{salt: salt}(fairPresale);
address launchpad = address(newContract);
uint256[] memory values = _values;
address[] memory addresses = _addresses;
require(routers[addresses[2]], "router is not registered");
require(
values[0] \u003e block.timestamp,
"startTime should be after than now"
);
require(
values[0] \u003c values[1],
"startTime should be before than endTime"
);
require(values[3] \u003e 0, "total can\u0027t be zero");
require(values[4] \u003e= 500, "liquidity must be more than 50%");
require(values[4] \u003c= 1000, "liquidity must be less than 100%");
require(values[5] \u003e= 30 days, "lock time must be longer than 30 days");
IFairLaunch(launchpad).initOwner();
IFairLaunch(launchpad).initializePresale(
addresses[0],
addresses[1],
values[0],
values[1],
values[2],
values[3],
values[8]
);
IFairLaunch(launchpad).initializeLock(
values[5],
values[6],
values[7],
values[4],
addresses[2],
locker,
feeAddress,
options[2]
);
IFairLaunch(launchpad).updateInfo(_strings);
// if fee option is mainfee = 5 and tokenfee = 0
if (options[0])
require(
values[6] == DEFAULT_MAIN_FEE_OPTION_1 \u0026\u0026
values[7] == DEFAULT_TOKEN_FEE_OPTION_1,
"invalid fee value"
);
else
require(
values[6] == DEFAULT_MAIN_FEE_OPTION_2 \u0026\u0026
values[7] == DEFAULT_TOKEN_FEE_OPTION_2,
"invalid fee values"
);
// if whitelist option enabled
if (options[1]) ILaunchpad(launchpad).enableWhiteList(values[1]);
uint256 tokenAmount = values[3] +
values[3]
.mul(
(FEE_PERCENT_DIVIDOR - values[6]).mul(values[4]) +
values[7].mul(FEE_PERCENT_DIVIDOR)
)
.div(FEE_PERCENT_DIVIDOR * FEE_PERCENT_DIVIDOR);
uint256 beforeBalance = IERC20(addresses[0]).balanceOf(launchpad);
IERC20(addresses[0]).safeTransferFrom(
msg.sender,
launchpad,
tokenAmount
);
require(
IERC20(addresses[0]).balanceOf(launchpad) - beforeBalance \u003e=
tokenAmount,
"invalid token transfer"
);
IFairLaunch(launchpad).endInit();
IFairLaunch(launchpad).transferOwnership(msg.sender);
contributions.push(
Contribution({
addr: launchpad,
owner: msg.sender,
token: _addresses[0],
createTime: block.timestamp,
isLaunchpad: false
})
);
userContributions[msg.sender].push(
Contribution({
addr: launchpad,
owner: msg.sender,
token: _addresses[0],
createTime: block.timestamp,
isLaunchpad: false
})
);
emit NewLaunchpadCreated(msg.sender, launchpad);
return launchpad;
}
function setPresaleAddress(address _presale) public onlyOwner {
require(_presale != address(0), "cannot be zero address");
presale = _presale;
}
function setFairPresaleAddress(address _fairPresale) public onlyOwner {
require(_fairPresale != address(0), "cannot be zero address");
fairPresale = _fairPresale;
}
function setLockerAddress(address _addr) public onlyOwner {
locker = _addr;
}
function setFeeAddress(address payable _addr) public onlyOwner {
feeAddress = _addr;
}
function setServiceFee(uint256 _fee) public onlyOwner {
serviceFee = _fee;
}
function setStarredFee(uint256 _fee) public onlyOwner {
starredFee = _fee;
}
function updateConfig(
uint256 mainFee_1,
uint256 mainFee_2,
uint256 tokenFee_1,
uint256 tokenFee_2
) public onlyOwner {
DEFAULT_MAIN_FEE_OPTION_1 = mainFee_1;
DEFAULT_TOKEN_FEE_OPTION_1 = tokenFee_1;
DEFAULT_MAIN_FEE_OPTION_2 = mainFee_2;
DEFAULT_TOKEN_FEE_OPTION_2 = tokenFee_2;
}
function setRouterAddress(address _addr, bool _en) public onlyOwner {
routers[_addr] = _en;
}
function getUserContributionsLength(address user)
external
view
returns (uint256)
{
return userContributions[user].length;
}
function getLaunchpads(uint256 size, uint256 cursor)
public
view
returns (LaunchpadInfo[] memory)
{
uint256 length = size;
if (length \u003e contributions.length - cursor) {
length = contributions.length - cursor;
}
LaunchpadInfo[] memory launchpads = new LaunchpadInfo[](length);
for (uint256 i = 0; i \u003c length; i++) {
launchpads[i].presaleType = ILaunchpad(
contributions[cursor + i].addr
).presaleType();
launchpads[i].addr = contributions[cursor + i].addr;
launchpads[i].logoUrl = ILaunchpad(contributions[cursor + i].addr)
.logoUrl();
launchpads[i].token = ILaunchpad(contributions[cursor + i].addr)
.token();
launchpads[i].buyToken = ILaunchpad(contributions[cursor + i].addr)
.buyToken();
launchpads[i].total = ILaunchpad(contributions[cursor + i].addr)
.total();
launchpads[i].rate = ILaunchpad(contributions[cursor + i].addr)
.rate();
launchpads[i].hardCap = ILaunchpad(contributions[cursor + i].addr)
.hardCap();
launchpads[i].softCap = ILaunchpad(contributions[cursor + i].addr)
.softCap();
launchpads[i].maxBuy = ILaunchpad(contributions[cursor + i].addr)
.maxBuy();
launchpads[i].amount = ILaunchpad(contributions[cursor + i].addr)
.totalDepositedBalance();
launchpads[i].liquidity = ILaunchpad(contributions[cursor + i].addr)
.liquidity();
launchpads[i].lockTime = ILaunchpad(contributions[cursor + i].addr)
.lockPeriod();
launchpads[i].startTime = ILaunchpad(contributions[cursor + i].addr)
.presaleStartTimestamp();
launchpads[i].endTime = ILaunchpad(contributions[cursor + i].addr)
.presaleEndTimestamp();
launchpads[i].refundable = ILaunchpad(
contributions[cursor + i].addr
).refundable();
launchpads[i].claimable = ILaunchpad(contributions[cursor + i].addr)
.claimable();
launchpads[i].whiteListEnableTime = ILaunchpad(
contributions[cursor + i].addr
).whiteListEnableTime();
launchpads[i].whitelist = ILaunchpad(contributions[cursor + i].addr)
.whitelist();
launchpads[i].starred = ILaunchpad(contributions[cursor + i].addr)
.starred();
launchpads[i].isLive = ILaunchpad(contributions[cursor + i].addr)
.isLive();
}
return launchpads;
}
function getContributionsLength() external view returns (uint256) {
return contributions.length;
}
}
"},"SafeERC20.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// \u0027safeIncreaseAllowance\u0027 and \u0027safeDecreaseAllowance\u0027
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance \u003e= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity\u0027s return data size checking mechanism, since
// we\u0027re implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length \u003e 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
"},"SafeMath.sol":{"content":"// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler\u0027s built in overflow checks.
/**
* @dev Wrappers over Solidity\u0027s arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c \u003c a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b \u003e a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring \u0027a\u0027 not being zero, but the
// benefit is lost if \u0027b\u0027 is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity\u0027s `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity\u0027s `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity\u0027s `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity\u0027s `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity\u0027s `%` 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 a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity\u0027s `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b \u003c= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity\u0027s `/` 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) {
unchecked {
require(b \u003e 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity\u0027s `%` 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) {
unchecked {
require(b \u003e 0, errorMessage);
return a % b;
}
}
}"}}Submitted on: 2025-10-27 12:56:48
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