Contract Address Details

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// Copyright 2019 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.
pragma solidity 0.5.16;
//pragma experimental SMTChecker;
/**
 * 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 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;
}
// Copyright 2019 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.
//pragma experimental SMTChecker;
// Copyright 2019 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.
//pragma experimental SMTChecker;
/**
 * Genesis version of GovernedContract common base.
 *
 * 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!
 */
contract GovernedContract is IGovernedContract {
    address public proxy;
    constructor(address _proxy) public {
        proxy = _proxy;
    }
    modifier requireProxy {
        require(msg.sender == proxy, "Not proxy");
        _;
    }
    function migrate(IGovernedContract _oldImpl) external requireProxy {
        _migrate(_oldImpl);
    }
    function destroy(IGovernedContract _newImpl) external requireProxy {
        _destroy(_newImpl);
        selfdestruct(address(_newImpl));
    }
    // solium-disable-next-line no-empty-blocks
    function _migrate(IGovernedContract) internal {}
    // solium-disable-next-line no-empty-blocks
    function _destroy(IGovernedContract) internal {}
    function _callerAddress()
        internal view
        returns (address payable)
    {
        if (msg.sender == proxy) {
            // This is guarantee of the GovernedProxy
            // solium-disable-next-line security/no-tx-origin
            return tx.origin;
        } else {
            return msg.sender;
        }
    }
}
// Copyright 2019 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.
//pragma experimental SMTChecker;
/**
 * Genesis version of BlacklistRegistry interface.
 *
 * Base Consensus interface for contracts which receive block rewards.
 *
 * NOTE: it MUST NOT change after blockchain launch!
 */
interface IBlockReward {
    // NOTE: it must NEVER fail
    function reward() external payable;
    // NOTE: it must NEVER fail
    function getReward(uint _blockNumber) external view returns(uint amount);
}
// Copyright 2019 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.
//pragma experimental SMTChecker;
// Copyright 2019 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.
//pragma experimental SMTChecker;
// Copyright 2019 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.
//pragma experimental SMTChecker;
interface IProposal {
    function parent() external view returns(address);
    function created_block() external view returns(uint);
    function deadline() external view returns(uint);
    function fee_payer() external view returns(address payable);
    function fee_amount() external view returns(uint);
    function accepted_weight() external view returns(uint);
    function rejected_weight() external view returns(uint);
    function total_weight() external view returns(uint);
    function quorum_weight() external view returns(uint);
    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);
}
/**
 * Interface of UpgradeProposal
 */
contract IUpgradeProposal is IProposal {
    function impl() external view returns(IGovernedContract);
}
/**
 * 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 proposeUpgrade(IGovernedContract _newImpl, uint _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;
}
// Copyright 2019 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.
//pragma experimental SMTChecker;
/**
 * A little helper to protect contract from being re-entrant in state
 * modifying functions.
 */
contract NonReentrant {
    uint private entry_guard;
    modifier noReentry {
        require(entry_guard == 0, "Reentry");
        entry_guard = 1;
        _;
        entry_guard = 0;
    }
}
/**
 * Genesis hardcoded version of SporkReward
 *
 * NOTE: it MUST NOT change after blockchain launch!
 */
contract BlockRewardV1 is
    GovernedContract,
    IBlockReward,
    NonReentrant
{
    uint constant internal GET_GAS = 10000;
    IGovernedProxy[] public reward_proxies;
    // IGovernedContract
    //---------------------------------
    constructor(address _proxy, IGovernedProxy[] memory _reward_proxies)
        public
        GovernedContract(_proxy)
    {
        for (uint i = 0; i < _reward_proxies.length; ++i) {
            reward_proxies.push(_reward_proxies[i]);
        }
    }
    // IBlockReward
    //---------------------------------
    function reward()
        external payable
        noReentry
    {
        uint len = reward_proxies.length;
        uint gas_per_reward = (gasleft() / len) - GET_GAS;
        for (uint i = 0; i < len; ++i) {
            IBlockReward impl = IBlockReward(address(reward_proxies[i].impl()));
            uint amount = impl.getReward.gas(GET_GAS)(block.number);
            // solium-disable-next-line security/no-call-value
            address(impl).call.value(amount).gas(gas_per_reward)(abi.encode(impl.reward.selector));
        }
    }
    function getReward(uint _blockNumber)
        external view
        returns(uint amount)
    {
        for (uint i = reward_proxies.length; i-- > 0;) {
            IBlockReward impl = IBlockReward(address(reward_proxies[i].impl()));
            amount += impl.getReward(_blockNumber);
        }
    }
    // Safety
    //---------------------------------
    function () external payable {
        revert("Not supported");
    }
}

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