Contract Address Details

00000000000000000000000000000000000000000000000000000000000003050000000000000000000000006f04fac9b248adcc773ffe878e330cea5b191541

Arg [0] (address) : 0x0000000000000000000000000000000000000305
Arg [1] (address) : 0x6f04fac9b248adcc773ffe878e330cea5b191541

              

pragma solidity 0.5.16;

// File: ../NonReentrant.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
/**
 * A little helper to protect contract from being re-entrant in state
 * modifying functions.
 */
contract NonReentrant {
    uint256 private entry_guard;
    modifier noReentry {
        require(entry_guard == 0, "NonReentrant: Reentry");
        entry_guard = 1;
        _;
        entry_guard = 0;
    }
}
// File: ../interfaces/IGovernedContract.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
/**
 * Genesis version of GovernedContract interface.
 *
 * Base Consensus interface for upgradable contracts.
 * Unlike common approach, the implementation is NOT expected to be
 * called through delegatecall() to minimize risks of shared storage.
 *
 * NOTE: it MUST NOT change after blockchain launch!
 */
interface IGovernedContract {
    // Return actual proxy address for secure validation
    function proxy() external view returns (address);
    // It must check that the caller is the proxy
    // and copy all required data from the old address.
    function migrate(IGovernedContract _oldImpl) external;
    // It must check that the caller is the proxy
    // and self destruct to the new address.
    function destroy(IGovernedContract _newImpl) external;
    // function () external payable; // This line (from original Energi IGovernedContract) is commented because it
    // makes truffle migrations fail
}
// File: ../interfaces/IProposal.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
interface IProposal {
    function parent() external view returns (address);
    function created_block() external view returns (uint256);
    function deadline() external view returns (uint256);
    function fee_payer() external view returns (address payable);
    function fee_amount() external view returns (uint256);
    function accepted_weight() external view returns (uint256);
    function rejected_weight() external view returns (uint256);
    function total_weight() external view returns (uint256);
    function quorum_weight() external view returns (uint256);
    function isFinished() external view returns (bool);
    function isAccepted() external view returns (bool);
    function withdraw() external;
    function destroy() external;
    function collect() external;
    function voteAccept() external;
    function voteReject() external;
    function setFee() external payable;
    function canVote(address owner) external view returns (bool);
}
// File: ../interfaces/IUpgradeProposal.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
/**
 * Interface of UpgradeProposal
 */
contract IUpgradeProposal is IProposal {
    function impl() external view returns (IGovernedContract);
}
// File: ../interfaces/IGovernedProxy.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
//pragma experimental SMTChecker;
/**
 * Genesis version of IGovernedProxy interface.
 *
 * Base Consensus interface for upgradable contracts proxy.
 * Unlike common approach, the implementation is NOT expected to be
 * called through delegatecall() to minimize risks of shared storage.
 *
 * NOTE: it MUST NOT change after blockchain launch!
 */
interface IGovernedProxy {
    event UpgradeProposal(
        IGovernedContract indexed impl,
        IUpgradeProposal proposal
    );
    event Upgraded(IGovernedContract indexed impl, IUpgradeProposal proposal);
    function impl() external view returns (IGovernedContract);
    function spork_proxy() external view returns (IGovernedProxy);
    function proposeUpgrade(IGovernedContract _newImpl, uint256 _period)
        external
        payable
        returns (IUpgradeProposal);
    function upgrade(IUpgradeProposal _proposal) external;
    function upgradeProposalImpl(IUpgradeProposal _proposal)
        external
        view
        returns (IGovernedContract new_impl);
    function listUpgradeProposals()
        external
        view
        returns (IUpgradeProposal[] memory proposals);
    function collectUpgradeProposal(IUpgradeProposal _proposal) external;
    function() external payable;
}
// File: ../interfaces/ISporkRegistry.sol
// Copyright 2021 Energi Core
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
interface ISporkRegistry {
    function createUpgradeProposal(
        IGovernedContract _impl,
        uint256 _period,
        address payable _fee_payer
    ) external payable returns (IUpgradeProposal);
    function consensusGasLimits()
        external
        view
        returns (uint256 callGas, uint256 xferGas);
}
// File: ReferralGovernedProxy.sol
// Copyright 2021 The Energi Core Authors
// This file is part of Energi Core.
//
// Energi Core is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Energi Core is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Energi Core. If not, see <http://www.gnu.org/licenses/>.
// Energi Governance system is the fundamental part of Energi Core.
// NOTE: It's not allowed to change the compiler due to byte-to-byte
//       match requirement.
/**
 * SC-9: This contract has no chance of being updated. It must be stupid simple.
 *
 * If another upgrade logic is required in the future - it can be done as proxy stage II.
 */
contract ReferralGovernedProxy is
    NonReentrant,
    IGovernedContract,
    IGovernedProxy
{
    modifier senderOrigin {
        // Internal calls are expected to use impl directly.
        // That's due to use of call() instead of delegatecall() on purpose.
        // solium-disable-next-line security/no-tx-origin
        require(
            tx.origin == msg.sender,
            "ReferralGovernedProxy: Only direct calls are allowed!"
        );
        _;
    }
    modifier onlyImpl {
        require(
            msg.sender == address(impl),
            "ReferralGovernedProxy: Only calls from impl are allowed!"
        );
        _;
    }
    IGovernedContract public impl;
    IGovernedProxy public spork_proxy;
    mapping(address => IGovernedContract) public upgrade_proposals;
    IUpgradeProposal[] public upgrade_proposal_list;
    constructor(address payable _sporkProxy, address _impl) public {
        spork_proxy = IGovernedProxy(_sporkProxy);
        impl = IGovernedContract(_impl);
    }
    event Referral(address indexed referrer, address indexed referee);
    function emitReferral(address referrer, address referee) external onlyImpl {
        emit Referral(referrer, referee);
    }
    /**
     * Pre-create a new contract first.
     * Then propose upgrade based on that.
     */
    function proposeUpgrade(IGovernedContract _newImpl, uint256 _period)
        external
        payable
        senderOrigin
        noReentry
        returns (IUpgradeProposal)
    {
        require(
            _newImpl != impl,
            "ReferralGovernedProxy: Already active!"
        );
        require(
            _newImpl.proxy() == address(this),
            "ReferralGovernedProxy: Wrong proxy!"
        );
        ISporkRegistry spork_reg = ISporkRegistry(address(spork_proxy.impl()));
        IUpgradeProposal proposal =
            spork_reg.createUpgradeProposal.value(msg.value)(
                _newImpl,
                _period,
                msg.sender
            );
        upgrade_proposals[address(proposal)] = _newImpl;
        upgrade_proposal_list.push(proposal);
        emit UpgradeProposal(_newImpl, proposal);
        return proposal;
    }
    /**
     * Once proposal is accepted, anyone can activate that.
     */
    function upgrade(IUpgradeProposal _proposal) external noReentry {
        IGovernedContract new_impl = upgrade_proposals[address(_proposal)];
        require(
            new_impl != impl,
            "ReferralGovernedProxy: Already active!"
        );
        // in case it changes in the flight
        require(
            address(new_impl) != address(0),
            "ReferralGovernedProxy: Not registered!"
        );
        require(
            _proposal.isAccepted(),
            "ReferralGovernedProxy: Not accepted!"
        );
        IGovernedContract old_impl = impl;
        new_impl.migrate(old_impl);
        impl = new_impl;
        old_impl.destroy(new_impl);
        // SECURITY: prevent downgrade attack
        _cleanupProposal(_proposal);
        // Return fee ASAP
        _proposal.destroy();
        emit Upgraded(new_impl, _proposal);
    }
    /**
     * Map proposal to implementation
     */
    function upgradeProposalImpl(IUpgradeProposal _proposal)
        external
        view
        returns (IGovernedContract new_impl)
    {
        new_impl = upgrade_proposals[address(_proposal)];
    }
    /**
     * Lists all available upgrades
     */
    function listUpgradeProposals()
        external
        view
        returns (IUpgradeProposal[] memory proposals)
    {
        uint256 len = upgrade_proposal_list.length;
        proposals = new IUpgradeProposal[](len);
        for (uint256 i = 0; i < len; ++i) {
            proposals[i] = upgrade_proposal_list[i];
        }
        return proposals;
    }
    /**
     * Once proposal is reject, anyone can start collect procedure.
     */
    function collectUpgradeProposal(IUpgradeProposal _proposal)
        external
        noReentry
    {
        IGovernedContract new_impl = upgrade_proposals[address(_proposal)];
        require(
            address(new_impl) != address(0),
            "ReferralGovernedProxy: Not registered!"
        );
        _proposal.collect();
        delete upgrade_proposals[address(_proposal)];
        _cleanupProposal(_proposal);
    }
    function _cleanupProposal(IUpgradeProposal _proposal) internal {
        delete upgrade_proposals[address(_proposal)];
        uint256 len = upgrade_proposal_list.length;
        for (uint256 i = 0; i < len; ++i) {
            if (upgrade_proposal_list[i] == _proposal) {
                upgrade_proposal_list[i] = upgrade_proposal_list[len - 1];
                upgrade_proposal_list.pop();
                break;
            }
        }
    }
    /**
     * Related to above
     */
    function proxy() external view returns (address) {
        return address(this);
    }
    /**
     * SECURITY: prevent on-behalf-of calls
     */
    function migrate(IGovernedContract) external {
        revert("ReferralGovernedProxy: Good try");
    }
    /**
     * SECURITY: prevent on-behalf-of calls
     */
    function destroy(IGovernedContract) external {
        revert("ReferralGovernedProxy: Good try");
    }
    /**
     * Proxy all other calls to implementation.
     */
    function() external payable senderOrigin {
        // SECURITY: senderOrigin() modifier is mandatory
        IGovernedContract impl_m = impl;
        // solium-disable-next-line security/no-inline-assembly
        assembly {
            let ptr := mload(0x40)
            calldatacopy(ptr, 0, calldatasize)
            let res := call(sub(gas, 10000), impl_m, callvalue, ptr, calldatasize, 0, 0)
            // NOTE: returndatasize should allow repeatable calls
            //       what should save one opcode.
            returndatacopy(ptr, 0, returndatasize)
            switch res
                case 0 {
                    revert(ptr, returndatasize)
                }
                default {
                    return(ptr, returndatasize)
                }
        }
    }
}

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