// SPDX-License-Identifier: MIT
// _ __ __ __ __ __ __ _
// | | \/ | \/ | \/ | (_)
// __| | \ / | \ / | \ / | _ ___
// / _` | |\/| | |\/| | |\/| | | |/ _ \
// | (_| | | | | | | | | | | _| | (_) |
// \__,_|_| |_|_| |_|_| |_| (_)_|\___/
// dMMM dApp: https://dMMM.io
// Official Website: http://d-mmm.github.io/
// Telegram Channel: https://t.me/dMMM2020
// Github: https://github.com/d-mmm
// WhitePaper: https://dMMM.io/whitepaper
pragma solidity >=0.6.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: MIT
interface IMaster {
function isOwner(address _addr) external view returns (bool);
function payableOwner() external view returns (address payable);
function isInternal(address _addr) external view returns (bool);
function getLatestAddress(bytes2 _contractName)
external
view
returns (address contractAddress);
}
// SPDX-License-Identifier: MIT
interface IDeFiLogic {
function onTokenReceived(
address token,
address operator,
address msgSender,
address to,
uint256 amount,
bytes calldata userData,
bytes calldata operatorData
) external;
function getOriginalAccountQuota()
external
view
returns (
uint256,
uint256,
uint256
);
function register(
address msgSender,
uint256 msgValue,
bytes32 inviteCode,
bool purchaseOriginAccount
) external;
function claimROI(address msgSender) external;
function deposit(
address msgSender,
uint256 poolID,
uint256 tokenAmt
) external;
}
// SPDX-License-Identifier: MIT
interface IDeFiStorage {
enum ConfigType {
InvestAmt,
StaticIncomeAmt,
DynamicIncomePercent,
ClaimFeePercent,
UpgradeRequiredInviteValidPlayerCount,
UpgradeRequiredMarketPerformance,
UpgradeRequiredSelfInvestCount
}
enum InvestType {Newbie, Open, PreOrder}
enum GlobalStatus {Pending, Started, Bankruptcy, Ended}
event GlobalBlocks(uint256 indexed eventID, uint256[3] blocks);
// public
function getCurrentRoundID(bool enableCurrentBlock)
external
view
returns (uint256);
function getAvailableRoundID(bool isNewUser, bool enableCurrentBlock)
external
view
returns (uint256 id, InvestType investType);
function getInvestGear(uint256 usdAmt) external view returns (uint256);
function U2T(uint256 usdAmt) external view returns (uint256);
function U2E(uint256 usdAmt) external view returns (uint256);
function T2U(uint256 tokenAmt) external view returns (uint256);
function E2U(uint256 etherAmt) external view returns (uint256);
function T2E(uint256 tokenAmt) external view returns (uint256);
function E2T(uint256 etherAmt) external view returns (uint256);
function getGlobalStatus() external view returns (GlobalStatus);
function last100() external view returns (uint256[100] memory);
function getGlobalBlocks() external view returns (uint256[3] memory);
function getDeFiAccounts() external view returns (uint256[5] memory);
function getPoolSplitStats() external view returns (uint256[3] memory);
function getPoolSplitPercent(uint256 roundID) external view returns (uint256[6] memory splitPrcent, uint256[2] memory nodeCount);
// internal
function isLast100AndLabel(uint256 userID) external returns (bool);
function increaseRoundData(
uint256 roundID,
uint256 dataID,
uint256 num
) external;
function getNodePerformance(
uint256 roundID,
uint256 nodeID,
bool isSuperNode
) external view returns (uint256);
function increaseUserData(
uint256 userID,
uint256 dataID,
uint256 num,
bool isSub,
bool isSet
) external;
function checkRoundAvailableAndUpdate(
bool isNewUser,
uint256 roundID,
uint256 usdAmt,
uint256 tokenAmt
) external returns (bool success);
function increaseDeFiAccount(
uint256 accountID,
uint256 num,
bool isSub
) external returns (bool);
function getUser(uint256 userID)
external
view
returns (
bool[2] memory userBoolArray,
uint256[21] memory userUint256Array
);
function getUserUint256Data(uint256 userID, uint256 dataID)
external
view
returns (uint256);
function setDeFiAccounts(uint256[5] calldata data) external;
function splitDone() external;
function getSelfInvestCount(uint256 userID)
external
view
returns (uint256[5] memory selfInvestCount);
function setSelfInvestCount(
uint256 userID,
uint256[5] calldata selfInvestCount
) external;
function pushToInvestQueue(uint256 userID) external;
function effectReferrals(
uint256 userID,
uint256 roundID,
uint256 usdAmt,
bool isNewUser
) external;
function getLevelConfig(uint256 level, ConfigType configType)
external
view
returns (uint256);
function getUserFatherIDs(uint256 userID)
external
view
returns (uint256[7] memory fathers);
function getUserFatherActiveInfo(uint256 userID)
external
view
returns (
uint256[7] memory fathers,
uint256[7] memory roundID,
uint256[7] memory lastActive,
address[7] memory addrs
);
function getUserFatherAddrs(uint256 userID)
external
view
returns (address[7] memory fathers);
function setGlobalBlocks(uint256[3] calldata blocks) external;
function getGlobalNodeCount(uint256 roundID)
external
view
returns (uint256[2] memory nodeCount);
function getToken() external view returns (address);
function setToken(address token) external;
function getPlatformAddress() external view returns (address payable);
function setPlatformAddress(address payable platformAddress) external;
function getIDByAddr(address addr) external view returns (uint256);
function getAddrByID(uint256 id) external view returns (address);
function setUserAddr(uint256 id, address addr) external;
function getIDByInviteCode(bytes32 inviteCode)
external
view
returns (uint256);
function getInviteCodeByID(uint256 id) external view returns (bytes32);
function setUserInviteCode(uint256 id, bytes32 inviteCode) external;
function issueUserID(address addr) external returns (uint256);
function issueEventIndex() external returns (uint256);
function setUser(
uint256 userID,
bool[2] calldata userBoolArry,
uint256[21] calldata userUint256Array
) external;
function deactivateUser(uint256 id) external;
function getRound(uint256 roundID)
external
view
returns (uint256[4] memory roundUint256Vars);
function setRound(uint256 roundID, uint256[4] calldata roundUint256Vars)
external;
function setE2U(uint256 e2u) external;
function setT2U(uint256 t2u) external;
function setRoundLimit(uint256[] calldata roundID, uint256[] calldata limit)
external;
}
// SPDX-License-Identifier: MIT
interface IDeFi {
function sendToken(address to, uint256 amt) external;
function sendETH(address payable to, uint256 amt) external;
}
// SPDX-License-Identifier: MIT
// _ __ __ __ __ __ __ _
// | | \/ | \/ | \/ | (_)
// __| | \ / | \ / | \ / | _ ___
// / _` | |\/| | |\/| | |\/| | | |/ _ \
// | (_| | | | | | | | | | | _| | (_) |
// \__,_|_| |_|_| |_|_| |_| (_)_|\___/
// dMMM dApp: https://dMMM.io
// Official Website: http://d-mmm.github.io/
// Telegram Channel: https://t.me/dMMM2020
// Github: https://github.com/d-mmm
// WhitePaper: https://dMMM.io/whitepaper
// SPDX-License-Identifier: MIT
/**
* @dev Interface of the ERC777TokensRecipient standard as defined in the EIP.
*
* Accounts can be notified of {IERC777} tokens being sent to them by having a
* contract implement this interface (contract holders can be their own
* implementer) and registering it on the
* https://eips.ethereum.org/EIPS/eip-1820[ERC1820 global registry].
*
* See {IERC1820Registry} and {ERC1820Implementer}.
*/
interface IERC777Recipient {
/**
* @dev Called by an {IERC777} token contract whenever tokens are being
* moved or created into a registered account (`to`). The type of operation
* is conveyed by `from` being the zero address or not.
*
* This call occurs _after_ the token contract's state is updated, so
* {IERC777-balanceOf}, etc., can be used to query the post-operation state.
*
* This function may revert to prevent the operation from being executed.
*/
function tokensReceived(
address operator,
address from,
address to,
uint256 amount,
bytes calldata userData,
bytes calldata operatorData
) external;
}
// SPDX-License-Identifier: MIT
/**
* @dev Interface of the global ERC1820 Registry, as defined in the
* https://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register
* implementers for interfaces in this registry, as well as query support.
*
* Implementers may be shared by multiple accounts, and can also implement more
* than a single interface for each account. Contracts can implement interfaces
* for themselves, but externally-owned accounts (EOA) must delegate this to a
* contract.
*
* {IERC165} interfaces can also be queried via the registry.
*
* For an in-depth explanation and source code analysis, see the EIP text.
*/
interface IERC1820Registry {
/**
* @dev Sets `newManager` as the manager for `account`. A manager of an
* account is able to set interface implementers for it.
*
* By default, each account is its own manager. Passing a value of `0x0` in
* `newManager` will reset the manager to this initial state.
*
* Emits a {ManagerChanged} event.
*
* Requirements:
*
* - the caller must be the current manager for `account`.
*/
function setManager(address account, address newManager) external;
/**
* @dev Returns the manager for `account`.
*
* See {setManager}.
*/
function getManager(address account) external view returns (address);
/**
* @dev Sets the `implementer` contract as ``account``'s implementer for
* `interfaceHash`.
*
* `account` being the zero address is an alias for the caller's address.
* The zero address can also be used in `implementer` to remove an old one.
*
* See {interfaceHash} to learn how these are created.
*
* Emits an {InterfaceImplementerSet} event.
*
* Requirements:
*
* - the caller must be the current manager for `account`.
* - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not
* end in 28 zeroes).
* - `implementer` must implement {IERC1820Implementer} and return true when
* queried for support, unless `implementer` is the caller. See
* {IERC1820Implementer-canImplementInterfaceForAddress}.
*/
function setInterfaceImplementer(address account, bytes32 interfaceHash, address implementer) external;
/**
* @dev Returns the implementer of `interfaceHash` for `account`. If no such
* implementer is registered, returns the zero address.
*
* If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28
* zeroes), `account` will be queried for support of it.
*
* `account` being the zero address is an alias for the caller's address.
*/
function getInterfaceImplementer(address account, bytes32 interfaceHash) external view returns (address);
/**
* @dev Returns the interface hash for an `interfaceName`, as defined in the
* corresponding
* https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP].
*/
function interfaceHash(string calldata interfaceName) external pure returns (bytes32);
/**
* @notice Updates the cache with whether the contract implements an ERC165 interface or not.
* @param account Address of the contract for which to update the cache.
* @param interfaceId ERC165 interface for which to update the cache.
*/
function updateERC165Cache(address account, bytes4 interfaceId) external;
/**
* @notice Checks whether a contract implements an ERC165 interface or not.
* If the result is not cached a direct lookup on the contract address is performed.
* If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling
* {updateERC165Cache} with the contract address.
* @param account Address of the contract to check.
* @param interfaceId ERC165 interface to check.
* @return True if `account` implements `interfaceId`, false otherwise.
*/
function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool);
/**
* @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache.
* @param account Address of the contract to check.
* @param interfaceId ERC165 interface to check.
* @return True if `account` implements `interfaceId`, false otherwise.
*/
function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool);
event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer);
event ManagerChanged(address indexed account, address indexed newManager);
}
// SPDX-License-Identifier: MIT
// SPDX-License-Identifier: MIT
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
abstract contract IUpgradable {
IMaster public master;
modifier onlyInternal {
assert(master.isInternal(msg.sender));
_;
}
modifier onlyOwner {
assert(master.isOwner(msg.sender));
_;
}
modifier onlyMaster {
assert(address(master) == msg.sender);
_;
}
/**
* @dev IUpgradable Interface to update dependent contract address
*/
function changeDependentContractAddress() public virtual;
/**
* @dev change master address
* @param addr is the new address
*/
function changeMasterAddress(address addr) public {
assert(Address.isContract(addr));
assert(address(master) == address(0) || address(master) == msg.sender);
master = IMaster(addr);
}
}
// SPDX-License-Identifier: MIT
// SPDX-License-Identifier: MIT
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
function per(uint256 a, uint256 base, uint256 percent) internal pure returns (uint256) {
return div(mul(a,percent),base);
}
}
/**
* @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 SafeMath for uint256;
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
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
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).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_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'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");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// SPDX-License-Identifier: MIT
/**
* @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].
*/
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 () internal {
_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 make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
contract DeFi is IUpgradable, IDeFi, IERC777Recipient, ReentrancyGuard {
using SafeERC20 for IERC20;
bytes32 internal constant TOKENS_RECIPIENT_INTERFACE_HASH = keccak256(
"ERC777TokensRecipient"
);
IERC1820Registry internal ERC1820 = IERC1820Registry(
0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24
);
IDeFiStorage _fs;
IDeFiLogic _dl;
constructor() public {
ERC1820.setInterfaceImplementer(
address(this),
TOKENS_RECIPIENT_INTERFACE_HASH,
address(this)
);
}
/// fallback
function tokensReceived(
address operator,
address from,
address to,
uint256 amount,
bytes memory userData,
bytes memory operatorData
) public override {
_dl.onTokenReceived(
msg.sender,
operator,
from,
to,
amount,
userData,
operatorData
);
}
/// public functions
function getOriginalAccountQuota()
public
view
returns (
uint256,
uint256,
uint256
)
{
return _dl.getOriginalAccountQuota();
}
function register(bytes32 inviteCode, bool purchaseOriginAccount)
public
payable
{
_dl.register(msg.sender, msg.value, inviteCode, purchaseOriginAccount);
}
function claimROI() public {
_dl.claimROI(msg.sender);
}
function deposit(uint256 poolID, uint256 tokenAmt) public {
IERC20(_fs.getToken()).safeTransferFrom(
msg.sender,
address(this),
tokenAmt
);
_dl.deposit(msg.sender, poolID, tokenAmt);
}
function sendToken(address to, uint256 amt)
public
override
onlyInternal
nonReentrant
{
IERC20(_fs.getToken()).safeTransfer(to, amt);
}
function sendETH(address payable to, uint256 amt)
public
override
onlyInternal
nonReentrant
{
to.transfer(amt);
}
/// implements functions
function changeDependentContractAddress() public override {
_fs = IDeFiStorage(master.getLatestAddress("FS"));
_dl = IDeFiLogic(master.getLatestAddress("DL"));
}
}
{
"compilationTarget": {
"DeFi.sol": "DeFi"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"changeDependentContractAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"changeMasterAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimROI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"poolID","type":"uint256"},{"internalType":"uint256","name":"tokenAmt","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getOriginalAccountQuota","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"master","outputs":[{"internalType":"contract IMaster","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"inviteCode","type":"bytes32"},{"internalType":"bool","name":"purchaseOriginAccount","type":"bool"}],"name":"register","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address payable","name":"to","type":"address"},{"internalType":"uint256","name":"amt","type":"uint256"}],"name":"sendETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amt","type":"uint256"}],"name":"sendToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"userData","type":"bytes"},{"internalType":"bytes","name":"operatorData","type":"bytes"}],"name":"tokensReceived","outputs":[],"stateMutability":"nonpayable","type":"function"}]