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ERC-20
Add Token to MetaMask (Web3)Overview
Max Total Supply
86,804.851668816111719071 DTOP
Holders
378
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
Balance
11.81969146907275158 DTOPValue
$0.00Loading...
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| # | Exchange | Pair | Price | 24H Volume | % Volume |
|---|
Contract Name:
InitializableUpgradeabilityProxy
Compiler Version
v0.6.12+commit.27d51765
Contract Source Code (Solidity)
/**
*Submitted for verification at Etherscan.io on 2021-04-09
*/
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
// File: contracts/ISynthetix.sol
pragma solidity ^0.6.2;
interface ISynthetix {
function exchange(
bytes32 sourceCurrencyKey,
uint256 sourceAmount,
bytes32 destinationCurrencyKey
) external returns (uint256 amountReceived);
function exchangeWithTracking(
bytes32 sourceCurrencyKey,
uint256 sourceAmount,
bytes32 destinationCurrencyKey,
address originator,
bytes32 trackingCode
) external returns (uint256 amountReceived);
function synths(bytes32 key)
external
view
returns (address synthTokenAddress);
function settle(bytes32 currencyKey)
external
returns (
uint256 reclaimed,
uint256 refunded,
uint256 numEntriesSettled
);
}
// File: contracts/IExchangeRates.sol
pragma solidity ^0.6.2;
interface IExchangeRates {
function effectiveValue(
bytes32 sourceCurrencyKey,
uint256 sourceAmount,
bytes32 destinationCurrencyKey
) external view returns (uint256);
function rateForCurrency(bytes32 currencyKey)
external
view
returns (uint256);
}
// File: contracts/IAddressResolver.sol
pragma solidity ^0.6.2;
interface IAddressResolver {
function getAddress(bytes32 name) external view returns (address);
}
// File: contracts/IExchanger.sol
pragma solidity ^0.6.2;
interface IExchanger {
function settle(address from, bytes32 currencyKey)
external
returns (
uint reclaimed,
uint refunded,
uint numEntries
);
function maxSecsLeftInWaitingPeriod(address account, bytes32 currencyKey) external view returns (uint);
function settlementOwing(address account, bytes32 currencyKey)
external
view
returns (
uint reclaimAmount,
uint rebateAmount,
uint numEntries
);
}
// File: contracts/ISynth.sol
pragma solidity ^0.6.2;
interface ISynth {
function proxy() external view returns (address);
// Mutative functions
function transferAndSettle(address to, uint256 value)
external
returns (bool);
function transferFromAndSettle(
address from,
address to,
uint256 value
) external returns (bool);
}
// File: contracts/ISystemStatus.sol
pragma solidity ^0.6.2;
interface ISystemStatus {
struct Status {
bool canSuspend;
bool canResume;
}
struct Suspension {
bool suspended;
// reason is an integer code,
// 0 => no reason, 1 => upgrading, 2+ => defined by system usage
uint248 reason;
}
// Views
// function getSynthExchangeSuspensions(bytes32[] calldata synths)
// external
// view
// returns (bool[] memory exchangeSuspensions, uint256[] memory reasons);
function synthExchangeSuspension(bytes32 currencyKey)
external
view
returns (bool suspended, uint248 reason);
}
// File: @openzeppelin/contracts-ethereum-package/contracts/Initializable.sol
pragma solidity >=0.4.24 <0.7.0;
/**
* @title Initializable
*
* @dev Helper contract to support initializer functions. To use it, replace
* the constructor with a function that has the `initializer` modifier.
* WARNING: Unlike constructors, initializer functions must be manually
* invoked. This applies both to deploying an Initializable contract, as well
* as extending an Initializable contract via inheritance.
* WARNING: When used with inheritance, manual care must be taken to not invoke
* a parent initializer twice, or ensure that all initializers are idempotent,
* because this is not dealt with automatically as with constructors.
*/
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifier to use in the initializer function of a contract.
*/
modifier initializer() {
require(initializing || isConstructor() || !initialized, "Contract instance has already been initialized");
bool isTopLevelCall = !initializing;
if (isTopLevelCall) {
initializing = true;
initialized = true;
}
_;
if (isTopLevelCall) {
initializing = false;
}
}
/// @dev Returns true if and only if the function is running in the constructor
function isConstructor() private view returns (bool) {
// extcodesize checks the size of the code stored in an address, and
// address returns the current address. Since the code is still not
// deployed when running a constructor, any checks on its code size will
// yield zero, making it an effective way to detect if a contract is
// under construction or not.
address self = address(this);
uint256 cs;
assembly { cs := extcodesize(self) }
return cs == 0;
}
// Reserved storage space to allow for layout changes in the future.
uint256[50] private ______gap;
}
// File: @openzeppelin/contracts-ethereum-package/contracts/math/SafeMath.sol
pragma solidity ^0.6.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
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) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
// File: contracts/Managed.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.0;
contract Managed is Initializable {
using SafeMath for uint256;
event ManagerUpdated(address newManager, string newManagerName);
address private _manager;
string private _managerName;
address[] private _memberList;
mapping(address => uint256) private _memberPosition;
address private _trader;
function initialize(address manager, string memory managerName)
internal
initializer
{
_manager = manager;
_managerName = managerName;
}
modifier onlyManager() {
require(msg.sender == _manager, "only manager");
_;
}
modifier onlyManagerOrTrader() {
require(msg.sender == _manager || msg.sender == _trader, "only manager or trader");
_;
}
function managerName() public view returns (string memory) {
return _managerName;
}
function manager() public view returns (address) {
return _manager;
}
function isMemberAllowed(address member) public view returns (bool) {
return _memberPosition[member] != 0;
}
function getMembers() public view returns (address[] memory) {
return _memberList;
}
function changeManager(address newManager, string memory newManagerName)
public
onlyManager
{
_manager = newManager;
_managerName = newManagerName;
emit ManagerUpdated(newManager, newManagerName);
}
function addMembers(address[] memory members) public onlyManager {
for (uint256 i = 0; i < members.length; i++) {
if (isMemberAllowed(members[i]))
continue;
_addMember(members[i]);
}
}
function removeMembers(address[] memory members) public onlyManager {
for (uint256 i = 0; i < members.length; i++) {
if (!isMemberAllowed(members[i]))
continue;
_removeMember(members[i]);
}
}
function addMember(address member) public onlyManager {
if (isMemberAllowed(member))
return;
_addMember(member);
}
function removeMember(address member) public onlyManager {
if (!isMemberAllowed(member))
return;
_removeMember(member);
}
function trader() public view returns (address) {
return _trader;
}
function setTrader(address newTrader) public onlyManager {
_trader = newTrader;
}
function removeTrader() public onlyManager {
_trader = address(0);
}
function numberOfMembers() public view returns (uint256) {
return _memberList.length;
}
function _addMember(address member) internal {
_memberList.push(member);
_memberPosition[member] = _memberList.length;
}
function _removeMember(address member) internal {
uint256 length = _memberList.length;
uint256 index = _memberPosition[member].sub(1);
address lastMember = _memberList[length.sub(1)];
_memberList[index] = lastMember;
_memberPosition[lastMember] = index.add(1);
_memberPosition[member] = 0;
_memberList.pop();
}
uint256[49] private __gap;
}
// File: contracts/IHasDaoInfo.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IHasDaoInfo {
function getDaoFee() external view returns (uint256, uint256);
function getDaoAddress() external view returns (address);
function getAddressResolver() external view returns (IAddressResolver);
}
// File: contracts/IHasProtocolDaoInfo.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IHasProtocolDaoInfo {
function owner() external view returns (address);
}
// File: contracts/IHasFeeInfo.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IHasFeeInfo {
// Manager fee
function getPoolManagerFee(address pool) external view returns (uint256, uint256);
function setPoolManagerFeeNumerator(address pool, uint256 numerator) external;
function getMaximumManagerFeeNumeratorChange() external view returns (uint256);
function getManagerFeeNumeratorChangeDelay() external view returns (uint256);
// Exit fee
function getExitFee() external view returns (uint256, uint256);
function getExitFeeCooldown() external view returns (uint256);
// Synthetix tracking
function getTrackingCode() external view returns (bytes32);
}
// File: contracts/IHasAssetInfo.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IHasAssetInfo {
function getMaximumSupportedAssetCount() external view returns (uint256);
}
// File: contracts/IReceivesUpgrade.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IReceivesUpgrade {
function receiveUpgrade(uint256 targetVersion) external;
}
// File: contracts/IHasDhptSwapInfo.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface IHasDhptSwapInfo {
// DHPT Swap Address
function getDhptSwapAddress() external view returns (address);
}
// File: @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/IERC20.sol
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);
}
// File: @openzeppelin/contracts-ethereum-package/contracts/GSN/Context.sol
pragma solidity ^0.6.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
contract ContextUpgradeSafe is Initializable {
// Empty internal constructor, to prevent people from mistakenly deploying
// an instance of this contract, which should be used via inheritance.
function __Context_init() internal initializer {
__Context_init_unchained();
}
function __Context_init_unchained() internal initializer {
}
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-ethereum-package/contracts/utils/Address.sol
pragma solidity ^0.6.2;
/**
* @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");
}
}
// File: @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20.sol
pragma solidity ^0.6.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20MinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20UpgradeSafe is Initializable, ContextUpgradeSafe, IERC20 {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
function __ERC20_init(string memory name, string memory symbol) internal initializer {
__Context_init_unchained();
__ERC20_init_unchained(name, symbol);
}
function __ERC20_init_unchained(string memory name, string memory symbol) internal initializer {
_name = name;
_symbol = symbol;
_decimals = 18;
}
/**
* @dev Returns the name of the token.
*/
function name() public view returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
* called.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view returns (uint8) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20};
*
* Requirements:
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements
*
* - `to` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
*
* This is internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Sets {decimals} to a value other than the default one of 18.
*
* WARNING: This function should only be called from the constructor. Most
* applications that interact with token contracts will not expect
* {decimals} to ever change, and may work incorrectly if it does.
*/
function _setupDecimals(uint8 decimals_) internal {
_decimals = decimals_;
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
uint256[44] private __gap;
}
// File: contracts/DHedge.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
contract DHedge is Initializable, ERC20UpgradeSafe, Managed, IReceivesUpgrade {
using SafeMath for uint256;
bytes32 constant private _EXCHANGE_RATES_KEY = "ExchangeRates";
bytes32 constant private _SYNTHETIX_KEY = "Synthetix";
bytes32 constant private _EXCHANGER_KEY = "Exchanger";
bytes32 constant private _SYSTEM_STATUS_KEY = "SystemStatus";
bytes32 constant private _SUSD_KEY = "sUSD";
event Deposit(
address fundAddress,
address investor,
uint256 valueDeposited,
uint256 fundTokensReceived,
uint256 totalInvestorFundTokens,
uint256 fundValue,
uint256 totalSupply,
uint256 time
);
event Withdrawal(
address fundAddress,
address investor,
uint256 valueWithdrawn,
uint256 fundTokensWithdrawn,
uint256 totalInvestorFundTokens,
uint256 fundValue,
uint256 totalSupply,
uint256 time
);
event Exchange(
address fundAddress,
address manager,
bytes32 sourceKey,
uint256 sourceAmount,
bytes32 destinationKey,
uint256 destinationAmount,
uint256 time
);
event AssetAdded(address fundAddress, address manager, bytes32 assetKey);
event AssetRemoved(address fundAddress, address manager, bytes32 assetKey);
event PoolPrivacyUpdated(bool isPoolPrivate);
event ManagerFeeMinted(
address pool,
address manager,
uint256 available,
uint256 daoFee,
uint256 managerFee,
uint256 tokenPriceAtLastFeeMint
);
event ManagerFeeSet(
address fundAddress,
address manager,
uint256 numerator,
uint256 denominator
);
event ManagerFeeIncreaseAnnounced(
uint256 newNumerator,
uint256 announcedFeeActivationTime);
event ManagerFeeIncreaseRenounced();
bool public privatePool;
address public creator;
uint256 public creationTime;
IAddressResolver public addressResolver;
address public factory;
bytes32[] public supportedAssets;
mapping(bytes32 => uint256) public assetPosition; // maps the asset to its 1-based position
mapping(bytes32 => bool) public persistentAsset;
// Manager fees
uint256 public tokenPriceAtLastFeeMint;
mapping(address => uint256) public lastDeposit;
// Fee increase announcement
uint256 public announcedFeeIncreaseNumerator;
uint256 public announcedFeeIncreaseTimestamp;
modifier onlyPrivate() {
require(
msg.sender == manager() ||
!privatePool ||
isMemberAllowed(msg.sender),
"only members allowed"
);
_;
}
function initialize(
address _factory,
bool _privatePool,
address _manager,
string memory _managerName,
string memory _fundName,
string memory _fundSymbol,
IAddressResolver _addressResolver,
bytes32[] memory _supportedAssets
) public initializer {
ERC20UpgradeSafe.__ERC20_init(_fundName, _fundSymbol);
Managed.initialize(_manager, _managerName);
factory = _factory;
_setPoolPrivacy(_privatePool);
creator = msg.sender;
creationTime = block.timestamp;
addressResolver = _addressResolver;
_addToSupportedAssets(_SUSD_KEY);
for(uint8 i = 0; i < _supportedAssets.length; i++) {
_addToSupportedAssets(_supportedAssets[i]);
}
// Set persistent assets
persistentAsset[_SUSD_KEY] = true;
tokenPriceAtLastFeeMint = 10**18;
}
function _beforeTokenTransfer(address from, address to, uint256 amount)
internal virtual override
{
super._beforeTokenTransfer(from, to, amount);
require(getExitFeeRemainingCooldown(from) == 0, "cooldown active");
}
function setPoolPrivate(bool _privatePool) public onlyManager {
require(privatePool != _privatePool, "flag must be different");
_setPoolPrivacy(_privatePool);
}
function _setPoolPrivacy(bool _privacy) internal {
privatePool = _privacy;
emit PoolPrivacyUpdated(_privacy);
}
function getAssetProxy(bytes32 key) public view returns (address) {
address synth = ISynthetix(addressResolver.getAddress(_SYNTHETIX_KEY))
.synths(key);
require(synth != address(0), "invalid key");
address proxy = ISynth(synth).proxy();
require(proxy != address(0), "invalid proxy");
return proxy;
}
function isAssetSupported(bytes32 key) public view returns (bool) {
return assetPosition[key] != 0;
}
function validateAsset(bytes32 key) public view returns (bool) {
address synth = ISynthetix(addressResolver.getAddress(_SYNTHETIX_KEY))
.synths(key);
if (synth == address(0))
return false;
address proxy = ISynth(synth).proxy();
if (proxy == address(0))
return false;
return true;
}
function addToSupportedAssets(bytes32 key) public onlyManagerOrTrader {
_addToSupportedAssets(key);
}
function removeFromSupportedAssets(bytes32 key) public {
require(msg.sender == IHasProtocolDaoInfo(factory).owner() ||
msg.sender == manager() ||
msg.sender == trader(), "only manager, trader or Protocol DAO");
require(isAssetSupported(key), "asset not supported");
require(!persistentAsset[key], "persistent assets can't be removed");
if (validateAsset(key) == true) { // allow removal of depreciated synths
require(
IERC20(getAssetProxy(key)).balanceOf(address(this)) == 0,
"non-empty asset cannot be removed"
);
}
_removeFromSupportedAssets(key);
}
function numberOfSupportedAssets() public view returns (uint256) {
return supportedAssets.length;
}
// Unsafe internal method that assumes we are not adding a duplicate
function _addToSupportedAssets(bytes32 key) internal {
require(supportedAssets.length < IHasAssetInfo(factory).getMaximumSupportedAssetCount(), "maximum assets reached");
require(!isAssetSupported(key), "asset already supported");
require(validateAsset(key) == true, "not an asset");
supportedAssets.push(key);
assetPosition[key] = supportedAssets.length;
emit AssetAdded(address(this), manager(), key);
}
// Unsafe internal method that assumes we are removing an element that exists
function _removeFromSupportedAssets(bytes32 key) internal {
uint256 length = supportedAssets.length;
uint256 index = assetPosition[key].sub(1); // adjusting the index because the map stores 1-based
bytes32 lastAsset = supportedAssets[length.sub(1)];
// overwrite the asset to be removed with the last supported asset
supportedAssets[index] = lastAsset;
assetPosition[lastAsset] = index.add(1); // adjusting the index to be 1-based
assetPosition[key] = 0; // update the map
// delete the last supported asset and resize the array
supportedAssets.pop();
emit AssetRemoved(address(this), manager(), key);
}
function exchange(
bytes32 sourceKey,
uint256 sourceAmount,
bytes32 destinationKey
) public onlyManagerOrTrader {
require(isAssetSupported(sourceKey), "unsupported source currency");
require(
isAssetSupported(destinationKey),
"unsupported destination currency"
);
ISynthetix sx = ISynthetix(addressResolver.getAddress(_SYNTHETIX_KEY));
uint256 destinationAmount = sx.exchangeWithTracking(
sourceKey,
sourceAmount,
destinationKey,
IHasDaoInfo(factory).getDaoAddress(),
IHasFeeInfo(factory).getTrackingCode()
);
emit Exchange(
address(this),
msg.sender,
sourceKey,
sourceAmount,
destinationKey,
destinationAmount,
block.timestamp
);
}
function totalFundValue() public virtual view returns (uint256) {
uint256 total = 0;
uint256 assetCount = supportedAssets.length;
for (uint256 i = 0; i < assetCount; i++) {
total = total.add(assetValue(supportedAssets[i]));
}
return total;
}
function assetValue(bytes32 key) public view returns (uint256) {
return
IExchangeRates(addressResolver.getAddress(_EXCHANGE_RATES_KEY))
.effectiveValue(
key,
IERC20(getAssetProxy(key)).balanceOf(address(this)),
_SUSD_KEY
);
}
function deposit(uint256 _susdAmount) public onlyPrivate returns (uint256) {
lastDeposit[msg.sender] = block.timestamp;
//we need to settle all the assets before determining the total fund value for calculating manager fees
//as an optimisation it also returns current fundValue
uint256 fundValue = mintManagerFee(true);
uint256 totalSupplyBefore = totalSupply();
IExchanger sx = IExchanger(addressResolver.getAddress(_EXCHANGER_KEY));
require(
IERC20(getAssetProxy(_SUSD_KEY)).transferFrom(
msg.sender,
address(this),
_susdAmount
),
"token transfer failed"
);
uint256 liquidityMinted;
if (totalSupplyBefore > 0) {
//total balance converted to susd that this contract holds
//need to calculate total value of synths in this contract
liquidityMinted = _susdAmount.mul(totalSupplyBefore).div(fundValue);
} else {
liquidityMinted = _susdAmount;
}
_mint(msg.sender, liquidityMinted);
emit Deposit(
address(this),
msg.sender,
_susdAmount,
liquidityMinted,
balanceOf(msg.sender),
fundValue.add(_susdAmount),
totalSupplyBefore.add(liquidityMinted),
block.timestamp
);
return liquidityMinted;
}
function _settleAll(bool failOnSuspended) internal {
ISynthetix sx = ISynthetix(addressResolver.getAddress(_SYNTHETIX_KEY));
ISystemStatus status = ISystemStatus(addressResolver.getAddress(_SYSTEM_STATUS_KEY));
uint256 assetCount = supportedAssets.length;
for (uint256 i = 0; i < assetCount; i++) {
address proxy = getAssetProxy(supportedAssets[i]);
uint256 totalAssetBalance = IERC20(proxy).balanceOf(address(this));
if (totalAssetBalance > 0) {
sx.settle(supportedAssets[i]);
if (failOnSuspended) {
(bool suspended, ) = status.synthExchangeSuspension(supportedAssets[i]);
require(!suspended , "required asset is suspended");
}
}
}
}
function withdraw(uint256 _fundTokenAmount) public virtual {
require(
balanceOf(msg.sender) >= _fundTokenAmount,
"insufficient balance of fund tokens"
);
require(
getExitFeeRemainingCooldown(msg.sender) == 0,
"cooldown active"
);
uint256 fundValue = mintManagerFee(false);
uint256 valueWithdrawn = _fundTokenAmount.mul(fundValue).div(totalSupply());
//calculate the proportion
uint256 portion = _fundTokenAmount.mul(10**18).div(totalSupply());
//first return funded tokens
_burn(msg.sender, _fundTokenAmount);
uint256 assetCount = supportedAssets.length;
for (uint256 i = 0; i < assetCount; i++) {
address proxy = getAssetProxy(supportedAssets[i]);
uint256 totalAssetBalance = IERC20(proxy).balanceOf(address(this));
uint256 portionOfAssetBalance = totalAssetBalance.mul(portion).div(10**18);
if (portionOfAssetBalance > 0) {
IERC20(proxy).transfer(msg.sender, portionOfAssetBalance);
}
}
emit Withdrawal(
address(this),
msg.sender,
valueWithdrawn,
_fundTokenAmount,
balanceOf(msg.sender),
fundValue.sub(valueWithdrawn),
totalSupply(),
block.timestamp
);
}
function getFundSummary()
public
view
returns (
string memory,
uint256,
uint256,
address,
string memory,
uint256,
bool,
uint256,
uint256,
uint256,
uint256
)
{
uint256 managerFeeNumerator;
uint256 managerFeeDenominator;
(managerFeeNumerator, managerFeeDenominator) = IHasFeeInfo(factory).getPoolManagerFee(address(this));
uint256 exitFeeNumerator = 0;
uint256 exitFeeDenominator = 1;
return (
name(),
totalSupply(),
totalFundValue(),
manager(),
managerName(),
creationTime,
privatePool,
managerFeeNumerator,
managerFeeDenominator,
exitFeeNumerator,
exitFeeDenominator
);
}
function getSupportedAssets() public view returns (bytes32[] memory) {
return supportedAssets;
}
function getFundComposition()
public
view
returns (
bytes32[] memory,
uint256[] memory,
uint256[] memory
)
{
uint256 assetCount = supportedAssets.length;
bytes32[] memory assets = new bytes32[](assetCount);
uint256[] memory balances = new uint256[](assetCount);
uint256[] memory rates = new uint256[](assetCount);
IExchangeRates exchangeRates = IExchangeRates(
addressResolver.getAddress(_EXCHANGE_RATES_KEY)
);
for (uint256 i = 0; i < assetCount; i++) {
bytes32 asset = supportedAssets[i];
balances[i] = IERC20(getAssetProxy(asset)).balanceOf(address(this));
assets[i] = asset;
rates[i] = exchangeRates.rateForCurrency(asset);
}
return (assets, balances, rates);
}
function getWaitingPeriods()
public
view
returns (
bytes32[] memory,
uint256[] memory
)
{
uint256 assetCount = supportedAssets.length;
bytes32[] memory assets = new bytes32[](assetCount);
uint256[] memory periods = new uint256[](assetCount);
IExchanger exchanger = IExchanger(addressResolver.getAddress(_EXCHANGER_KEY));
for (uint256 i = 0; i < assetCount; i++) {
bytes32 asset = supportedAssets[i];
assets[i] = asset;
periods[i] = exchanger.maxSecsLeftInWaitingPeriod(address(this), asset);
}
return (assets, periods);
}
// MANAGER FEES
function tokenPrice() public view returns (uint256) {
uint256 fundValue = totalFundValue();
uint256 tokenSupply = totalSupply();
return _tokenPrice(fundValue, tokenSupply);
}
function _tokenPrice(uint256 _fundValue, uint256 _tokenSupply)
internal
pure
returns (uint256)
{
if (_tokenSupply == 0 || _fundValue == 0) return 0;
return _fundValue.mul(10**18).div(_tokenSupply);
}
function availableManagerFee() public view returns (uint256) {
uint256 fundValue = totalFundValue();
uint256 tokenSupply = totalSupply();
uint256 managerFeeNumerator;
uint256 managerFeeDenominator;
(managerFeeNumerator, managerFeeDenominator) = IHasFeeInfo(factory).getPoolManagerFee(address(this));
return
_availableManagerFee(
fundValue,
tokenSupply,
tokenPriceAtLastFeeMint,
managerFeeNumerator,
managerFeeDenominator
);
}
function _availableManagerFee(
uint256 _fundValue,
uint256 _tokenSupply,
uint256 _lastFeeMintPrice,
uint256 _feeNumerator,
uint256 _feeDenominator
) internal pure returns (uint256) {
if (_tokenSupply == 0 || _fundValue == 0) return 0;
uint256 currentTokenPrice = _fundValue.mul(10**18).div(_tokenSupply);
if (currentTokenPrice <= _lastFeeMintPrice) return 0;
uint256 available = currentTokenPrice
.sub(_lastFeeMintPrice)
.mul(_tokenSupply)
.mul(_feeNumerator)
.div(_feeDenominator)
.div(currentTokenPrice);
return available;
}
//returns uint256 fundValue as a gas optimisation
function mintManagerFee(bool failOnSuspended) public returns (uint256) {
//we need to settle all the assets before minting the manager fee
_settleAll(failOnSuspended);
uint256 fundValue = totalFundValue();
uint256 tokenSupply = totalSupply();
uint256 managerFeeNumerator;
uint256 managerFeeDenominator;
(managerFeeNumerator, managerFeeDenominator) = IHasFeeInfo(factory).getPoolManagerFee(address(this));
uint256 available = _availableManagerFee(
fundValue,
tokenSupply,
tokenPriceAtLastFeeMint,
managerFeeNumerator,
managerFeeDenominator
);
// Ignore dust when minting performance fees
if (available < 100)
return fundValue;
address daoAddress = IHasDaoInfo(factory).getDaoAddress();
uint256 daoFeeNumerator;
uint256 daoFeeDenominator;
(daoFeeNumerator, daoFeeDenominator) = IHasDaoInfo(factory).getDaoFee();
uint256 daoFee = available.mul(daoFeeNumerator).div(daoFeeDenominator);
uint256 managerFee = available.sub(daoFee);
if (daoFee > 0) _mint(daoAddress, daoFee);
if (managerFee > 0) _mint(manager(), managerFee);
tokenPriceAtLastFeeMint = _tokenPrice(fundValue, tokenSupply);
emit ManagerFeeMinted(
address(this),
manager(),
available,
daoFee,
managerFee,
tokenPriceAtLastFeeMint
);
return fundValue;
}
function getManagerFee() public view returns (uint256, uint256) {
return IHasFeeInfo(factory).getPoolManagerFee(address(this));
}
function setManagerFeeNumerator(uint256 numerator) public onlyManager {
uint256 managerFeeNumerator;
uint256 managerFeeDenominator;
(managerFeeNumerator, managerFeeDenominator) = IHasFeeInfo(factory).getPoolManagerFee(address(this));
require(numerator < managerFeeNumerator, "manager fee too high");
IHasFeeInfo(factory).setPoolManagerFeeNumerator(address(this), numerator);
emit ManagerFeeSet(
address(this),
manager(),
numerator,
managerFeeDenominator
);
}
function _setManagerFeeNumerator(uint256 numerator) internal {
IHasFeeInfo(factory).setPoolManagerFeeNumerator(address(this), numerator);
uint256 managerFeeNumerator;
uint256 managerFeeDenominator;
(managerFeeNumerator, managerFeeDenominator) = IHasFeeInfo(factory).getPoolManagerFee(address(this));
emit ManagerFeeSet(
address(this),
manager(),
managerFeeNumerator,
managerFeeDenominator
);
}
function announceManagerFeeIncrease(uint256 numerator) public onlyManager {
uint256 maximumAllowedChange = IHasFeeInfo(factory).getMaximumManagerFeeNumeratorChange();
uint256 currentFeeNumerator;
(currentFeeNumerator, ) = getManagerFee();
require (numerator <= currentFeeNumerator.add(maximumAllowedChange), "exceeded allowed increase");
uint256 feeChangeDelay = IHasFeeInfo(factory).getManagerFeeNumeratorChangeDelay();
announcedFeeIncreaseNumerator = numerator;
announcedFeeIncreaseTimestamp = block.timestamp + feeChangeDelay;
emit ManagerFeeIncreaseAnnounced(numerator, announcedFeeIncreaseTimestamp);
}
function renounceManagerFeeIncrease() public onlyManager {
announcedFeeIncreaseNumerator = 0;
announcedFeeIncreaseTimestamp = 0;
emit ManagerFeeIncreaseRenounced();
}
function commitManagerFeeIncrease() public onlyManager {
require(block.timestamp >= announcedFeeIncreaseTimestamp, "fee increase delay active");
_setManagerFeeNumerator(announcedFeeIncreaseNumerator);
announcedFeeIncreaseNumerator = 0;
announcedFeeIncreaseTimestamp = 0;
}
function getManagerFeeIncreaseInfo() public view returns (uint256, uint256) {
return (announcedFeeIncreaseNumerator, announcedFeeIncreaseTimestamp);
}
// Exit fees
function getExitFee() external view returns (uint256, uint256) {
return (0, 1);
}
function getExitFeeCooldown() external view returns (uint256) {
return IHasFeeInfo(factory).getExitFeeCooldown();
}
function getExitFeeRemainingCooldown(address sender) public view returns (uint256) {
uint256 cooldown = IHasFeeInfo(factory).getExitFeeCooldown();
uint256 cooldownFinished = lastDeposit[sender].add(cooldown);
if (cooldownFinished < block.timestamp)
return 0;
return cooldownFinished.sub(block.timestamp);
}
// Swap contract
function setLastDeposit(address investor) public onlyDhptSwap {
lastDeposit[investor] = block.timestamp;
}
modifier onlyDhptSwap() {
address dhptSwapAddress = IHasDhptSwapInfo(factory)
.getDhptSwapAddress();
require(msg.sender == dhptSwapAddress, "only swap contract");
_;
}
// Upgrade
function receiveUpgrade(uint256 targetVersion) external override{
require(msg.sender == factory, "no permission");
if (targetVersion == 1) {
addressResolver = IAddressResolver(0x4E3b31eB0E5CB73641EE1E65E7dCEFe520bA3ef2);
return;
}
require(false, "upgrade handler not found");
}
uint256[50] private __gap;
}
// File: contracts/upgradability/Proxy.sol
pragma solidity ^0.6.2;
/**
* @title Proxy
* @dev Implements delegation of calls to other contracts, with proper
* forwarding of return values and bubbling of failures.
* It defines a fallback function that delegates all calls to the address
* returned by the abstract _implementation() internal function.
*/
abstract contract Proxy {
/**
* @dev Fallback function.
* Implemented entirely in `_fallback`.
*/
fallback() external payable {
_fallback();
}
receive() external payable {
_fallback();
}
/**
* @return The Address of the implementation.
*/
function _implementation() internal virtual view returns (address);
/**
* @dev Delegates execution to an implementation contract.
* This is a low level function that doesn't return to its internal call site.
* It will return to the external caller whatever the implementation returns.
* @param implementation Address to delegate.
*/
function _delegate(address implementation) internal {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(
gas(),
implementation,
0,
calldatasize(),
0,
0
)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev Function that is run as the first thing in the fallback function.
* Can be redefined in derived contracts to add functionality.
* Redefinitions must call super._willFallback().
*/
function _willFallback() internal virtual {}
/**
* @dev fallback implementation.
* Extracted to enable manual triggering.
*/
function _fallback() internal {
_willFallback();
_delegate(_implementation());
}
}
// File: contracts/upgradability/Address.sol
pragma solidity ^0.6.2;
/**
* Utility library of inline functions on addresses
*
* Source https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-solidity/v2.1.3/contracts/utils/Address.sol
* This contract is copied here and renamed from the original to avoid clashes in the compiled artifacts
* when the user imports a zos-lib contract (that transitively causes this contract to be compiled and added to the
* build/artifacts folder) as well as the vanilla Address implementation from an openzeppelin version.
*/
library OpenZeppelinUpgradesAddress {
/**
* Returns whether the target address is a contract
* @dev This function will return false if invoked during the constructor of a contract,
* as the code is not actually created until after the constructor finishes.
* @param account address of the account to check
* @return whether the target address is a contract
*/
function isContract(address account) internal view returns (bool) {
uint256 size;
// XXX Currently there is no better way to check if there is a contract in an address
// than to check the size of the code at that address.
// See https://ethereum.stackexchange.com/a/14016/36603
// for more details about how this works.
// TODO Check this again before the Serenity release, because all addresses will be
// contracts then.
// solhint-disable-next-line no-inline-assembly
assembly {
size := extcodesize(account)
}
return size > 0;
}
}
// File: contracts/upgradability/HasLogic.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
interface HasLogic {
function getLogic() external view returns (address);
}
// File: contracts/upgradability/BaseUpgradeabilityProxy.sol
pragma solidity ^0.6.2;
/**
* @title BaseUpgradeabilityProxy
* @dev This contract implements a proxy that allows to change the
* implementation address to which it will delegate.
* Such a change is called an implementation upgrade.
*/
contract BaseUpgradeabilityProxy is Proxy {
/**
* @dev Emitted when the implementation is upgraded.
* @param implementation Address of the new implementation.
*/
event Upgraded(address indexed implementation);
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32
internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation.
* @return impl Address of the current implementation
*/
function _implementation() internal override view returns (address) {
address factory;
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
factory := sload(slot)
}
// Begin custom modification
if (factory == address(0x0)) return address(0x0); // If factory not initialized return empty
return HasLogic(factory).getLogic();
}
/**
* @dev Upgrades the proxy to a new implementation.
* @param newImplementation Address of the new implementation.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Sets the implementation address of the proxy.
* @param newImplementation Address of the new implementation.
*/
function _setImplementation(address newImplementation) internal {
require(
OpenZeppelinUpgradesAddress.isContract(newImplementation),
"Cannot set a proxy implementation to a non-contract address"
);
bytes32 slot = IMPLEMENTATION_SLOT;
assembly {
sstore(slot, newImplementation)
}
}
}
// File: contracts/upgradability/InitializableUpgradeabilityProxy.sol
pragma solidity ^0.6.2;
/**
* @title InitializableUpgradeabilityProxy
* @dev Extends BaseUpgradeabilityProxy with an initializer for initializing
* implementation and init data.
*/
contract InitializableUpgradeabilityProxy is BaseUpgradeabilityProxy {
/**
* @dev Contract initializer.
* @param _factory Address of the factory containing the implementation.
* @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
* It should include the signature and the parameters of the function to be called, as described in
* https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
* This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
*/
function initialize(address _factory, bytes memory _data) public payable {
require(_implementation() == address(0), "Impl not zero");
assert(
IMPLEMENTATION_SLOT ==
bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1)
);
_setImplementation(_factory);
if (_data.length > 0) {
(bool success, ) = _implementation().delegatecall(_data);
require(success);
}
}
}
// File: @openzeppelin/contracts-ethereum-package/contracts/access/Ownable.sol
pragma solidity ^0.6.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
contract OwnableUpgradeSafe is Initializable, ContextUpgradeSafe {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal initializer {
__Context_init_unchained();
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal initializer {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
uint256[49] private __gap;
}
// File: contracts/upgradability/ProxyFactory.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
contract ProxyFactory is OwnableUpgradeSafe, HasLogic {
event ProxyCreated(address proxy);
address private _logic;
function __ProxyFactory_init(address poolLogic) public initializer {
OwnableUpgradeSafe.__Ownable_init();
_logic = poolLogic;
}
function setLogic(address logic) public onlyOwner {
_logic = logic;
}
function getLogic() public override view returns (address) {
return _logic;
}
function deploy(bytes memory _data) public returns (address) {
return _deployProxy(_data);
}
function _deployProxy(bytes memory _data) internal returns (address) {
InitializableUpgradeabilityProxy proxy = _createProxy();
emit ProxyCreated(address(proxy));
proxy.initialize(address(this), _data);
return address(proxy);
}
function _createProxy()
internal
returns (InitializableUpgradeabilityProxy)
{
address payable addr;
bytes memory code = type(InitializableUpgradeabilityProxy).creationCode;
assembly {
addr := create(0, add(code, 0x20), mload(code))
if iszero(extcodesize(addr)) {
revert(0, 0)
}
}
return InitializableUpgradeabilityProxy(addr);
}
uint256[50] private __gap;
}
// File: contracts/DHedgeFactory.sol
//
// __ __ __ ________ _______ ______ ________
// / |/ | / |/ |/ \ / \ / |
// ____$$ |$$ | $$ |$$$$$$$$/ $$$$$$$ |/$$$$$$ |$$$$$$$$/
// / $$ |$$ |__$$ |$$ |__ $$ | $$ |$$ | _$$/ $$ |__
// /$$$$$$$ |$$ $$ |$$ | $$ | $$ |$$ |/ |$$ |
// $$ | $$ |$$$$$$$$ |$$$$$/ $$ | $$ |$$ |$$$$ |$$$$$/
// $$ \__$$ |$$ | $$ |$$ |_____ $$ |__$$ |$$ \__$$ |$$ |_____
// $$ $$ |$$ | $$ |$$ |$$ $$/ $$ $$/ $$ |
// $$$$$$$/ $$/ $$/ $$$$$$$$/ $$$$$$$/ $$$$$$/ $$$$$$$$/
//
// dHEDGE DAO - https://dhedge.org
//
// MIT License
// ===========
//
// Copyright (c) 2020 dHEDGE DAO
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//
pragma solidity ^0.6.2;
contract DHedgeFactory is
ProxyFactory,
IHasDaoInfo,
IHasFeeInfo,
IHasAssetInfo,
IHasDhptSwapInfo
{
using SafeMath for uint256;
event FundCreated(
address fundAddress,
bool isPoolPrivate,
string fundName,
string managerName,
address manager,
uint256 time,
uint256 managerFeeNumerator,
uint256 managerFeeDenominator
);
event DaoAddressSet(address dao);
event DaoFeeSet(uint256 numerator, uint256 denominator);
event ExitFeeSet(uint256 numerator, uint256 denominator);
event ExitFeeCooldownSet(uint256 cooldown);
event MaximumSupportedAssetCountSet(uint256 count);
event DhptSwapAddressSet(address dhptSwap);
IAddressResolver public addressResolver;
address[] public deployedFunds;
address internal _daoAddress;
uint256 internal _daoFeeNumerator;
uint256 internal _daoFeeDenominator;
mapping (address => bool) public isPool;
uint256 private _MAXIMUM_MANAGER_FEE_NUMERATOR;
uint256 private _MANAGER_FEE_DENOMINATOR;
mapping (address => uint256) public poolManagerFeeNumerator;
mapping (address => uint256) public poolManagerFeeDenominator;
uint256 internal _exitFeeNumerator;
uint256 internal _exitFeeDenominator;
uint256 internal _exitFeeCooldown;
uint256 internal _maximumSupportedAssetCount;
bytes32 internal _trackingCode;
mapping (address => uint256) public poolVersion;
uint256 public poolStorageVersion;
address internal _dhptSwapAddress;
uint256 public maximumManagerFeeNumeratorChange;
uint256 public managerFeeNumeratorChangeDelay;
function initialize(
IAddressResolver _addressResolver,
address _poolLogic,
address daoAddress
) public initializer {
ProxyFactory.__ProxyFactory_init(_poolLogic);
addressResolver = _addressResolver;
_setDaoAddress(daoAddress);
_setMaximumManagerFee(5000, 10000);
_setDaoFee(10, 100); // 10%
_setExitFee(5, 1000); // 0.5%
_setExitFeeCooldown(1 days);
_setMaximumSupportedAssetCount(10);
_setTrackingCode(
0x4448454447450000000000000000000000000000000000000000000000000000
);
}
function createFund(
bool _privatePool,
address _manager,
string memory _managerName,
string memory _fundName,
string memory _fundSymbol,
uint256 _managerFeeNumerator,
bytes32[] memory _supportedAssets
) public returns (address) {
bytes memory data = abi.encodeWithSignature(
"initialize(address,bool,address,string,string,string,address,bytes32[])",
address(this),
_privatePool,
_manager,
_managerName,
_fundName,
_fundSymbol,
addressResolver,
_supportedAssets
);
address fund = deploy(data);
deployedFunds.push(fund);
isPool[fund] = true;
poolVersion[fund] = poolStorageVersion;
_setPoolManagerFee(fund, _managerFeeNumerator, _MANAGER_FEE_DENOMINATOR);
emit FundCreated(
fund,
_privatePool,
_fundName,
_managerName,
_manager,
block.timestamp,
_managerFeeNumerator,
_MANAGER_FEE_DENOMINATOR
);
return fund;
}
function deployedFundsLength() external view returns (uint256) {
return deployedFunds.length;
}
function setAddressResolver(address _addressResolver) public onlyOwner {
addressResolver = IAddressResolver(_addressResolver);
}
function getAddressResolver() public override view returns (IAddressResolver) {
return addressResolver;
}
// DAO info
function getDaoAddress() public override view returns (address) {
return _daoAddress;
}
function setDaoAddress(address daoAddress) public onlyOwner {
_setDaoAddress(daoAddress);
}
function _setDaoAddress(address daoAddress) internal {
_daoAddress = daoAddress;
emit DaoAddressSet(daoAddress);
}
function setDaoFee(uint256 numerator, uint256 denominator) public onlyOwner {
_setDaoFee(numerator, denominator);
}
function _setDaoFee(uint256 numerator, uint256 denominator) internal {
require(numerator <= denominator, "invalid fraction");
_daoFeeNumerator = numerator;
_daoFeeDenominator = denominator;
emit DaoFeeSet(numerator, denominator);
}
function getDaoFee() public override view returns (uint256, uint256) {
return (_daoFeeNumerator, _daoFeeDenominator);
}
modifier onlyPool() {
require(
isPool[msg.sender] == true,
"Only a pool contract can perform this action"
);
_;
}
// Manager fees
function getPoolManagerFee(address pool) external override view returns (uint256, uint256) {
require(isPool[pool] == true, "supplied address is not a pool");
return (poolManagerFeeNumerator[pool], poolManagerFeeDenominator[pool]);
}
function setPoolManagerFeeNumerator(address pool, uint256 numerator) external override {
require(pool == msg.sender && isPool[msg.sender] == true, "only a pool can change own fee");
require(isPool[pool] == true, "supplied address is not a pool");
require(numerator <= poolManagerFeeNumerator[pool].add(maximumManagerFeeNumeratorChange), "manager fee too high");
_setPoolManagerFee(msg.sender, numerator, _MANAGER_FEE_DENOMINATOR);
}
function _setPoolManagerFee(address pool, uint256 numerator, uint256 denominator) internal {
require(numerator <= denominator && numerator <= _MAXIMUM_MANAGER_FEE_NUMERATOR, "invalid fraction");
poolManagerFeeNumerator[pool] = numerator;
poolManagerFeeDenominator[pool] = denominator;
}
function getMaximumManagerFee() public view returns (uint256, uint256) {
return (_MAXIMUM_MANAGER_FEE_NUMERATOR, _MANAGER_FEE_DENOMINATOR);
}
function _setMaximumManagerFee(uint256 numerator, uint256 denominator) internal {
require(denominator > 0, "denominator must be positive");
_MAXIMUM_MANAGER_FEE_NUMERATOR = numerator;
_MANAGER_FEE_DENOMINATOR = denominator;
}
function setMaximumManagerFeeNumeratorChange(uint256 amount) public onlyOwner {
maximumManagerFeeNumeratorChange = amount;
}
function getMaximumManagerFeeNumeratorChange() public override view returns (uint256) {
return maximumManagerFeeNumeratorChange;
}
function setManagerFeeNumeratorChangeDelay(uint256 delay) public onlyOwner {
managerFeeNumeratorChangeDelay = delay;
}
function getManagerFeeNumeratorChangeDelay() public override view returns (uint256) {
return managerFeeNumeratorChangeDelay;
}
// Exit fees
function setExitFee(uint256 numerator, uint256 denominator) public onlyOwner {
_setExitFee(numerator, denominator);
}
function _setExitFee(uint256 numerator, uint256 denominator) internal {
require(numerator <= denominator, "invalid fraction");
_exitFeeNumerator = numerator;
_exitFeeDenominator = denominator;
emit ExitFeeSet(numerator, denominator);
}
function getExitFee() external override view returns (uint256, uint256) {
return (_exitFeeNumerator, _exitFeeDenominator);
}
function setExitFeeCooldown(uint256 cooldown)
external
onlyOwner
{
_setExitFeeCooldown(cooldown);
}
function _setExitFeeCooldown(uint256 cooldown) internal {
_exitFeeCooldown = cooldown;
emit ExitFeeCooldownSet(cooldown);
}
function getExitFeeCooldown() public override view returns (uint256) {
return _exitFeeCooldown;
}
// Asset Info
function setMaximumSupportedAssetCount(uint256 count) external onlyOwner {
_setMaximumSupportedAssetCount(count);
}
function _setMaximumSupportedAssetCount(uint256 count) internal {
_maximumSupportedAssetCount = count;
emit MaximumSupportedAssetCountSet(count);
}
function getMaximumSupportedAssetCount() external virtual view override returns (uint256) {
return _maximumSupportedAssetCount;
}
// Synthetix tracking
function setTrackingCode(bytes32 code) external onlyOwner {
_setTrackingCode(code);
}
function _setTrackingCode(bytes32 code) internal {
_trackingCode = code;
}
function getTrackingCode() public override view returns (bytes32) {
return _trackingCode;
}
// DHPT Swap
function getDhptSwapAddress() public override view returns (address) {
return _dhptSwapAddress;
}
function setDhptSwapAddress(address dhptSwapAddress) public onlyOwner {
_setDhptSwapAddress(dhptSwapAddress);
}
function _setDhptSwapAddress(address dhptSwapAddress) internal {
_dhptSwapAddress = dhptSwapAddress;
emit DhptSwapAddressSet(dhptSwapAddress);
}
// Upgrade
function _upgradePool(address pool, uint256 targetVersion) internal {
IReceivesUpgrade(pool).receiveUpgrade(targetVersion);
poolVersion[pool] = targetVersion;
}
function upgradePoolBatch(uint256 startIndex, uint256 endIndex, uint256 sourceVersion, uint256 targetVersion) external onlyOwner {
require(startIndex <= endIndex && startIndex < deployedFunds.length && endIndex < deployedFunds.length, "invalid bounds");
for (uint256 i = startIndex; i <= endIndex; i++) {
address pool = deployedFunds[i];
if (poolVersion[pool] != sourceVersion)
continue;
_upgradePool(pool, targetVersion);
}
}
function setPoolStorageVersion(uint256 version) external onlyOwner {
require(version > poolStorageVersion, "invalid version");
poolStorageVersion = version;
}
uint256[48] private __gap;
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"_factory","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]Contract Creation Code
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Deployed Bytecode
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Deployed Bytecode Sourcemap
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Swarm Source
ipfs://01b6de2999484679b2f7eac60ed7e3e7a755f921b64438900906c52243f18075
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