Contract Name:
LaunchpadNativeIdo
Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface AggregatorV3Interface {
function decimals() external view returns (uint8);
function description() external view returns (string memory);
function version() external view returns (uint256);
function getRoundData(uint80 _roundId)
external
view
returns (
uint80 roundId,
int256 answer,
uint256 startedAt,
uint256 updatedAt,
uint80 answeredInRound
);
function latestRoundData()
external
view
returns (
uint80 roundId,
int256 answer,
uint256 startedAt,
uint256 updatedAt,
uint80 answeredInRound
);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```solidity
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```solidity
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
* to enforce additional security measures for this role.
*/
abstract contract AccessControl is Context, IAccessControl, ERC165 {
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
Strings.toHexString(account),
" is missing role ",
Strings.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleGranted} event.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleRevoked} event.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*
* May emit a {RoleRevoked} event.
*/
function renounceRole(bytes32 role, address account) public virtual override {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* May emit a {RoleGranted} event.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleGranted} event.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleRevoked} event.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @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);
/**
* @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 `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'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 `from` to `to` 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 from, address to, uint256 amount) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/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;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
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
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
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));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
* 0 before setting it to a non-zero value.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @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's return data size checking mechanism, since
// we're 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");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @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).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't 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 > 0;
}
/**
* @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://consensys.net/diligence/blog/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/v0.8.0/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");
(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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or 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 {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// 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
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// 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;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1, "Math: mulDiv overflow");
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import './IIdoStorageState.sol';
interface IIdoStorageActions {
/**
* @dev Opens the ido.
*/
function openIdo() external;
/**
* @dev Closes the ido.
*/
function closeIdo() external;
/**
* @dev Adds new round.
* @param priceVestingShort_ price per token unit for short vesting.
* @param priceVestingLong_ price per token unit for long vesting.
* @param totalSupply_ max amount of tokens available in the round.
*/
function setupRound(uint256 priceVestingShort_, uint256 priceVestingLong_, uint256 totalSupply_) external;
/**
* @dev Adds referrals.
* @param referrals_ referrals addresses.
* @param mainRewards_ collection of main rewards.
* @param secondaryRewards_ collection of secondary rewards.
*/
function setupReferrals(
address[] calldata referrals_,
uint256[] calldata mainRewards_,
uint256[] calldata secondaryRewards_
) external;
/**
* @dev Updates round price parameters.
* @param index_ round index.
* @param priceVestingShort_ price per token unit for short vesting.
* @param priceVestingLong_ price per token unit for long vesting.
*/
function updateRoundPrice(uint256 index_, uint256 priceVestingShort_, uint256 priceVestingLong_) external;
/**
* @dev Updates round supply parameters.
* @param index_ round index.
* @param totalSupply_ max amount of tokens available in the round.
*/
function updateRoundSupply(uint256 index_, uint256 totalSupply_) external;
/**
* @dev Opens round for investment.
* @param index_ round index.
*/
function openRound(uint256 index_) external;
/**
* @dev Closes round for investment.
* @param index_ round index.
*/
function closeRound(uint256 index_) external;
/**
* @dev Sets beneficiary KYC pass.
* @param beneficiary_ address performing the token purchase.
* @param value_ KYC pass state.
*/
function setKycPass(address beneficiary_, bool value_) external;
/**
* @dev Sets KYC pass to the beneficiaries in batches.
* @param beneficiaries_ beneficiaries array to set the kyc for.
* @param values_ KYC pass states.
*/
function setKycPassBatches(address[] calldata beneficiaries_, bool[] calldata values_) external;
/**
* @dev Sets max investment amount.
* @param investment_ max investment amount.
*/
function setMaxInvestment(uint256 investment_) external;
/**
* @dev Sets min investment amount.
* @param investment_ min investment amount.
*/
function setMinInvestment(uint256 investment_) external;
/**
* @dev Sets KYC cap.
* @param cap_ new cap value.
*/
function setKycCap(uint256 cap_) external;
/**
* @dev Sets purchase state.
* @param beneficiary_ address performing the token purchase.
* @param collateral_ collateral asset.
* @param investment_ normalized investment amount.
* @param tokensSold_ amount of tokens purchased.
* @param referral_ referral owner.
* @param mainReward_ referral reward in purchase token.
* @param tokenReward_ referral reward in ido token.
*/
function setPurchaseState(
address beneficiary_,
address collateral_,
uint256 investment_,
uint256 tokensSold_,
address referral_,
uint256 mainReward_,
uint256 tokenReward_
) external;
/**
* @dev Enables referral code.
* @param referral_ referral owner.
*/
function enableReferral(address referral_) external;
/**
* @dev Disables referral code.
* @param referral_ referral owner.
*/
function disableReferral(address referral_) external;
/**
* @dev Claims referral rewards.
* @param collaterals_ array of collaterals tokens.
*/
function claimRewards(address[] calldata collaterals_) external;
/**
* @dev Allows to recover native coin from contract.
*/
function recoverNative() external;
/**
* @dev Allows to recover erc20 tokens.
* @param token_ token address.
* @param amount_ amount to be recovered.
*/
function recoverERC20(address token_, uint256 amount_) external;
/**
* @return True if the ido is opened.
*/
function isOpened() external view returns (bool);
/**
* @return True if the ido is closed.
*/
function isClosed() external view returns (bool);
/**
* @return Number of rounds
*/
function getRoundsCount() external view returns (uint256);
/**
* @return Active round index.
*/
function getActiveRound() external view returns (uint256);
/**
* @return Round parameters by index.
* @param index_ round index.
*/
function getRound(uint256 index_) external view returns (IIdoStorageState.Round memory);
/**
* @return Total tokens sold.
*/
function getTotalTokenSold() external view returns (uint256);
/**
* @return Price of the token in the active round.
* @param vesting_ vesting of the investment.
*/
function getPrice(IIdoStorageState.Vesting vesting_) external view returns (uint256);
/**
* @return Balance of purchased tokens by beneficiary.
* @param round_ round of ido.
* @param beneficiary_ address performing the token purchase.
*/
function balanceOf(uint256 round_, address beneficiary_) external view returns (uint256);
/**
* @return Balance of reward tokens by referral.
* @param collateral_ collateral token.
* @param beneficiary_ address of referral.
*/
function rewardBalanceOf(address collateral_, address beneficiary_) external view returns (uint256);
/**
* @return Beneficiary KYC.
* @param beneficiary_ address performing the token purchase.
*/
function hasKycPass(address beneficiary_) external view returns (bool);
/**
* @return Max investment amount.
*/
function getMaxInvestment() external view returns (uint256);
/**
* @return Min investment amount.
*/
function getMinInvestment() external view returns (uint256);
/**
* @return Cap according to KYC.
* @param beneficiary_ address performing the token purchase.
*/
function capOf(address beneficiary_) external view returns (uint256);
/**
* @return Cap according to max investment.
* @param beneficiary_ address performing the token purchase.
*/
function maxCapOf(address beneficiary_) external view returns (uint256);
/**
* @return KYC cap.
*/
function getKycCap() external view returns (uint256);
/**
* @dev Get referral.
* @param beneficiary_ address performing the token purchase.
* @param referral_ referral owner.
*/
function getReferral(address beneficiary_, address referral_) external view returns (address referral);
/**
* @return Get referral reward.
* @param referral_ referral owner.
*/
function getReferralReward(address referral_) external view returns (uint256, uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
interface IIdoStorageErrors {
error ArrayParamsInvalidLengthErr();
error IdoStartedErr();
error IdoClosedErr();
error RoundUndefinedErr(uint256 index_);
error RoundStartedErr(uint256 index_);
error RoundClosedErr(uint256 index_);
error RoundInvalidSupplyErr(uint256 index_);
error MinInvestmentErr(uint256 investment_, uint256 min_);
error MaxInvestmentErr(uint256 investment_, uint256 max_);
error KycCaptRangeErr(uint256 cap_, uint256 min_, uint256 max_);
error ReferralUndefinedErr(address referral_);
error ReferralEnabledErr(address referral_);
error ReferralDisabledErr(address referral_);
error CollateralsUndefinedErr();
error NativeTransferErr();
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import './IIdoStorageState.sol';
interface IIdoStorageEvents {
event IdoStateUpdated(IIdoStorageState.State state);
event RoundOpened(uint256 indexed index);
event RoundClosed(uint256 indexed index);
event RoundAdded(uint256 priceVestingShort, uint256 priceVestingLong, uint256 totalSupply);
event RoundPriceUpdated(uint256 indexed index, uint256 priceVestingShort, uint256 priceVestingLong);
event RoundSupplyUpdated(uint256 indexed index, uint256 totalSupply);
event KycCapUpdated(uint256 cap);
event KycPassUpdated(address indexed beneficiary, bool value);
event MaxInvestmentUpdated(uint256 investment);
event MinInvestmentUpdated(uint256 investment);
event ReferralSetup(address indexed referral, uint256 mainReward, uint256 secondaryReward);
event ReferralEnabled(address indexed referral);
event ReferralDisabled(address indexed referral);
event ClaimedRewards(address indexed referral, address indexed collateral, uint256 amount);
event ERC20Recovered(address token, uint256 amount);
event NativeRecovered(uint256 amount);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
interface IIdoStorageState {
enum State { None, Opened, Closed }
enum Vesting { Short, Long }
struct Round {
bool defined;
State state;
uint256 priceVestingShort;
uint256 priceVestingLong;
uint256 tokensSold;
uint256 totalSupply;
}
struct Referral {
bool defined;
bool enabled;
uint256 mainReward;
uint256 secondaryReward;
}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import './IdoStorage/IIdoStorageActions.sol';
import './IdoStorage/IIdoStorageErrors.sol';
import './IdoStorage/IIdoStorageEvents.sol';
import './IdoStorage/IIdoStorageState.sol';
interface IIdoStorage is IIdoStorageState, IIdoStorageActions, IIdoStorageEvents, IIdoStorageErrors {
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import './LaunchpadNativeIdo/ILaunchpadNativeIdoActions.sol';
import './LaunchpadNativeIdo/ILaunchpadNativeIdoErrors.sol';
import './LaunchpadNativeIdo/ILaunchpadNativeIdoEvents.sol';
import './IIdoStorage.sol';
interface ILaunchpadNativeIdo is ILaunchpadNativeIdoActions, ILaunchpadNativeIdoErrors, ILaunchpadNativeIdoEvents {
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import '../IdoStorage/IIdoStorageState.sol';
interface ILaunchpadNativeIdoActions {
/**
* @dev Method allows to purchase the tokens.
* @param vesting_ vesting of the investment.
* @param referral_ referral owner.
*/
function buyTokens(IIdoStorageState.Vesting vesting_, address referral_) external payable;
/**
* @dev Method allows to purchase the tokens.
* @param vesting_ vesting of the investment.
* @param beneficiary_ address performing the token purchase.
* @param referral_ referral owner.
*/
function buyTokensFor(IIdoStorageState.Vesting vesting_, address beneficiary_, address referral_) external payable;
/**
* @dev Sets price feed update time threshold state.
* @param priceFeedTimeThreshold_ new value.
*/
function setPriceFeedTimeThreshold(uint256 priceFeedTimeThreshold_) external;
/**
* @dev Allows to recover native coin from contract.
*/
function recoverNative() external;
/**
* @dev Allows to recover ERC20 from contract.
* @param token_ ERC20 token address.
* @param amount_ ERC20 token amount.
*/
function recoverERC20(address token_, uint256 amount_) external;
/**
* @return Address where funds are collected.
*/
function getWallet() external view returns (address);
/**
* @return Address of the ido storage.
*/
function getIdoStorage() external view returns (address);
/**
* @return Amount of funds raised.
*/
function getRaised() external view returns (uint256);
/**
* @return Price feed update time threshold.
*/
function getPriceFeedTimeThreshold() external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
interface ILaunchpadNativeIdoErrors {
error IdoClosedErr();
error RoundClosedErr();
error ExceededRoundAllocationErr();
error ExceededPriceFeedTimeThresholdErr();
error BeneficiaryNullAddressErr();
error InvestmentNullErr();
error IvalidReferralErr();
error MinInvestmentErr(uint256 investment_, uint256 min_);
error MaxInvestmentErr(uint256 investment_, uint256 max_);
error IdoStorageNullAddressErr();
error WalletNullAddressErr();
error PriceFeedNullAddressErr();
error InvalidPriceFeedTimeThresholdErr();
error NativeTransferErr();
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import '../IdoStorage/IIdoStorageState.sol';
interface ILaunchpadNativeIdoEvents {
/**
* Event for token purchase logging.
* @param purchaser who paid for the tokens.
* @param referral referral used in the purchase.
* @param investment native coins paid for the purchase.
* @param vesting vesting of the investment.
* @param tokensSold amount of tokens purchased.
* @param round round of the purchase
*/
event TokensPurchased(
address indexed purchaser,
address indexed referral,
uint256 investment,
IIdoStorageState.Vesting indexed vesting,
uint256 tokensSold,
uint256 round
);
/**
* Event for pause state update.
* @param paused new paused value.
*/
event PausedUpdated(bool paused);
/**
* Event for price feed update time threshold state update.
* @param priceFeedTimeThreshold new price feed time threshold value.
*/
event PriceFeedTimeThresholdUpdated(uint256 priceFeedTimeThreshold);
event ERC20Recovered(address token, uint256 amount);
event NativeRecovered(uint256 amount);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/access/AccessControl.sol';
import '@openzeppelin/contracts/security/ReentrancyGuard.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/security/Pausable.sol';
import '@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol';
import './interfaces/IIdoStorage.sol';
import './interfaces/IdoStorage/IIdoStorageState.sol';
import './interfaces/ILaunchpadNativeIdo.sol';
/**
* @title LaunchpadNativeIdo
* @dev LaunchpadNativeIdo is a contract for managing a token ido,
* allowing investors to purchase tokens with the native coin.
*/
contract LaunchpadNativeIdo is ILaunchpadNativeIdo, AccessControl, ReentrancyGuard, Pausable {
using SafeERC20 for IERC20;
using Address for address;
bytes32 public constant WERT_ROLE = keccak256('WERT_ROLE');
address internal constant ETH = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
uint256 public constant TOKEN_DECIMALS = 18;
uint256 public constant PRECISION = 10 ** 18;
/// @notice Address where funds are collected
address private _wallet;
/// @notice Ido storage
IIdoStorage private _idoStorage;
/// @notice Amount of funds collected
uint256 private _raised;
/// @notice Chainlink price aggregator
AggregatorV3Interface private _priceFeed;
uint256 private _priceFeedTimeThreshold;
/**
* @param idoStorage_ address where ido state is being store.
* @param wallet_ address where collected funds will be forwarded to.
* @param priceFeed_ address of chainlink price aggregator.
* @param priceFeedTimeThreshold_ time of price feed update time threshold.
*/
constructor(address payable idoStorage_, address wallet_, address priceFeed_, uint256 priceFeedTimeThreshold_) {
if (idoStorage_ == address(0)) revert IdoStorageNullAddressErr();
if (wallet_ == address(0)) revert WalletNullAddressErr();
if (priceFeed_ == address(0)) revert PriceFeedNullAddressErr();
if (priceFeedTimeThreshold_ == 0) revert InvalidPriceFeedTimeThresholdErr();
_wallet = wallet_;
_idoStorage = IIdoStorage(idoStorage_);
_priceFeed = AggregatorV3Interface(priceFeed_);
_priceFeedTimeThreshold = priceFeedTimeThreshold_;
_setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
}
receive()
external
payable
{
// solhint-disable-previous-line no-empty-blocks
}
function buyTokens(IIdoStorage.Vesting vesting_, address referral_)
external
payable
nonReentrant()
{
_buyTokens(vesting_, _msgSender(), referral_, false);
}
function buyTokensFor(IIdoStorage.Vesting vesting_, address beneficiary_, address referral_)
external
payable
onlyRole(WERT_ROLE)
nonReentrant()
{
_buyTokens(vesting_, beneficiary_, referral_, true);
}
function pause()
external
onlyRole(DEFAULT_ADMIN_ROLE)
{
_pause();
}
function unpause()
external
onlyRole(DEFAULT_ADMIN_ROLE)
{
_unpause();
}
function setPriceFeedTimeThreshold(uint256 priceFeedTimeThreshold_)
external
onlyRole(DEFAULT_ADMIN_ROLE)
{
_priceFeedTimeThreshold = priceFeedTimeThreshold_;
emit PriceFeedTimeThresholdUpdated(priceFeedTimeThreshold_);
}
function recoverNative()
external
onlyRole(DEFAULT_ADMIN_ROLE)
{
uint256 balance = address(this).balance;
(bool success, ) = _msgSender().call{value: balance}('');
if (!success) revert NativeTransferErr();
emit NativeRecovered(balance);
}
function recoverERC20(address token_, uint256 amount_)
external
onlyRole(DEFAULT_ADMIN_ROLE)
{
IERC20(token_).safeTransfer(_msgSender(), amount_);
emit ERC20Recovered(token_, amount_);
}
function getWallet()
external
view
returns (address)
{
return _wallet;
}
function getIdoStorage()
external
view
returns (address)
{
return address(_idoStorage);
}
function getRaised()
external
view
returns (uint256)
{
return _raised;
}
function getPriceFeedTimeThreshold()
external
view
returns (uint256)
{
return _priceFeedTimeThreshold;
}
/**
* @dev Method allows to purchase the tokens.
* @param vesting_ vesting of the investment.
* @param beneficiary_ address performing the token purchase.
* @param referral_ referral owner.
* @param maxCap_ if beneficiary has max cap.
*/
function _buyTokens(IIdoStorage.Vesting vesting_, address beneficiary_, address referral_, bool maxCap_)
internal
{
uint256 investment = msg.value;
_preValidatePurchase(beneficiary_, investment, vesting_, referral_, maxCap_);
(address referral, uint256 mainReward, uint256 tokenReward) = _preProcessReferral(beneficiary_, referral_, vesting_, investment);
_processPurchase(investment, mainReward);
uint256 tokensSold = _getTokenAmount(investment, vesting_);
_updatePurchasingState(beneficiary_, investment, tokensSold, referral, mainReward, tokenReward);
_postPurchase(beneficiary_, referral, investment, vesting_, tokensSold);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param investment_ native coins paid for the purchase.
* @param reward_ referral bonus.
*/
function _processPurchase(uint256 investment_, uint256 reward_)
internal
{
uint256 investment = investment_ - reward_;
(bool success, ) = _wallet.call{value: investment}('');
if (!success) revert NativeTransferErr();
// transfer to a storage
if (reward_ > 0) {
(bool rSuccess, ) = address(_idoStorage).call{value: reward_}('');
if (!rSuccess) revert NativeTransferErr();
}
}
/**
* @dev Executed in order to update state of the purchase within ido.
* @param beneficiary_ address performing the token purchase.
* @param investment_ native coins paid for the purchase.
* @param tokensSold_ amount of purchased tokens.
* @param referral_ referral owner.
* @param mainReward_ referral main reward.
* @param tokenReward_ referral token reward.
*/
function _updatePurchasingState(address beneficiary_, uint256 investment_, uint256 tokensSold_, address referral_, uint256 mainReward_, uint256 tokenReward_)
internal
{
uint8 priceDecimals = _priceFeed.decimals();
(, int256 price, , uint256 updatedAt,) = _priceFeed.latestRoundData();
if (block.timestamp - updatedAt > _priceFeedTimeThreshold) revert ExceededPriceFeedTimeThresholdErr();
_raised = _raised + investment_;
uint256 normalizedInvestment = (investment_ * uint256(price) * PRECISION) / (10 ** (TOKEN_DECIMALS + priceDecimals));
_idoStorage.setPurchaseState(beneficiary_, ETH, normalizedInvestment, tokensSold_, referral_, mainReward_, tokenReward_);
}
/**
* @dev Executed for the post purchase processing
* @param beneficiary_ address performing the token purchase.
* @param referral_ referral used in the purchase.
* @param investment_ native coins paid for the purchase.
* @param vesting_ vesting of the investment.
* @param tokensSold_ amount of purchased tokens.
*/
function _postPurchase(address beneficiary_, address referral_, uint256 investment_, IIdoStorage.Vesting vesting_, uint256 tokensSold_)
internal
{
emit TokensPurchased(beneficiary_, referral_, investment_, vesting_, tokensSold_, _idoStorage.getActiveRound());
}
/**
* @dev Validation of the incoming purchase.
* @param beneficiary_ address performing the token purchase.
* @param investment_ native coins paid for the purchase.
* @param vesting_ vesting of the investment.
* @param referral_ referral owner.
* @param maxCap_ if beneficiary has max cap.
*/
function _preValidatePurchase(address beneficiary_, uint256 investment_, IIdoStorage.Vesting vesting_, address referral_, bool maxCap_)
internal
whenNotPaused
view
{
if (investment_ == 0) revert InvestmentNullErr();
if (beneficiary_ == address(0)) revert BeneficiaryNullAddressErr();
if (beneficiary_ == referral_) revert IvalidReferralErr();
// validates if sale and round is open
if (!_idoStorage.isOpened()) revert IdoClosedErr();
uint256 activeRound = _idoStorage.getActiveRound();
IIdoStorage.Round memory round = _idoStorage.getRound(activeRound);
if (round.state != IIdoStorageState.State.Opened) revert RoundClosedErr();
if (round.totalSupply < round.tokensSold + _getTokenAmount(investment_, vesting_))
revert ExceededRoundAllocationErr();
// validates investment amount
uint8 priceDecimals = _priceFeed.decimals();
(, int256 price, , uint256 updatedAt,) = _priceFeed.latestRoundData();
if (block.timestamp - updatedAt > _priceFeedTimeThreshold) revert ExceededPriceFeedTimeThresholdErr();
uint256 normalizedAmount = (investment_ * uint256(price) * PRECISION) / (10 ** (TOKEN_DECIMALS + priceDecimals));
if (_idoStorage.getMinInvestment() > normalizedAmount) revert MinInvestmentErr(normalizedAmount, _idoStorage.getMinInvestment());
uint256 cap = maxCap_ ? _idoStorage.maxCapOf(beneficiary_) : _idoStorage.capOf(beneficiary_);
if (cap < normalizedAmount) revert MaxInvestmentErr(normalizedAmount, cap);
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Returns referral data.
* @param beneficiary_ address performing the token purchase.
* @param referral_ referral owner.
* @param vesting_ vesting of the investment.
* @param investment_ native coins paid for the purchase.
*/
function _preProcessReferral(address beneficiary_, address referral_, IIdoStorage.Vesting vesting_, uint256 investment_)
internal
view
returns (address, uint256, uint256)
{
address referral = _idoStorage.getReferral(beneficiary_, referral_);
if (referral == address(0)) {
return (referral, 0, 0);
}
(uint256 mainReward_, uint256 secondaryReward_) = _idoStorage.getReferralReward(referral);
uint256 mainReward = investment_ * mainReward_ / 1000;
uint256 secondaryReward = investment_ * secondaryReward_ / 1000;
uint256 tokenReward = _getTokenAmount(secondaryReward, vesting_);
return (referral, mainReward, tokenReward);
}
/**
* @return Amount of tokens that can be purchased with specified native coin investment.
* @param investment_ native coins paid for the purchase.
* @param vesting_ vesting of the investment.
*/
function _getTokenAmount(uint256 investment_, IIdoStorage.Vesting vesting_)
internal
view
returns (uint256)
{
uint8 priceDecimals = _priceFeed.decimals();
(, int256 price, , uint256 updatedAt,) = _priceFeed.latestRoundData();
if (block.timestamp - updatedAt > _priceFeedTimeThreshold) revert ExceededPriceFeedTimeThresholdErr();
return (investment_ * uint256(price) * PRECISION) / _idoStorage.getPrice(vesting_) / (10 ** priceDecimals);
}
}