Contract Source Code (Solidity Standard Json-Input format)

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//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import {Ownable} from "./utils/NexusOwnable.sol";
/**
 * @title Validator Execution Reward Contract
 * @author RohitAudit
 * @dev This contract handles the proposer awards for the validators. As the rewards are associated with particular
 * validator one needs to update it in the contract as to who can claim those rewards. The reward bot performs that
 * functionality by tracking proposer of the block
 */
contract ValidatorExecutionRewards is Ownable{
    struct RollupExecutionReward{
        address rollupAdmin;
        uint256 amount;
    }
    mapping(address => uint256) public executionRewards;
    address public rewardBot;
    uint256 public rewardsEarned;
    uint256 public rewardsClaimed;
    event ExecutionRewardsReceived(uint256 rewards);
    event ChangeRewardBotAddress(address reward_bot);
    event ExecutionRewardSent(uint256 rewards,address rollupAdmin);
    event RollupExecutionRewardUpdated(address rollupAdmin, uint256 rewards);
    error NotRewardBot();
    error RewardNotPresent();
    error IncorrectRewards();

    modifier onlyRewardBot() {
        if (msg.sender != rewardBot) revert NotRewardBot();
        _;
    }

    constructor(address _rewardBot){
        if (_rewardBot == address(0)) revert IncorrectAddress();

        rewardBot = _rewardBot;
        emit ChangeRewardBotAddress(_rewardBot);
        _ownableInit(msg.sender);
    }

    function changeRewardBotAddress(address _bot_address) external onlyOwner{
        if (_bot_address == address(0)) revert IncorrectAddress();
        rewardBot = _bot_address;
        emit ChangeRewardBotAddress(_bot_address);
    }

    receive() external payable {
        rewardsEarned+=msg.value;
        emit ExecutionRewardsReceived(msg.value);
    }

    /**
     * Used for updation of rewards for a particular rollup
     * @param rewards: Array of rollups and their rewards earned by their validators
     */
    function updateRewardsRollup(RollupExecutionReward[] calldata rewards) external onlyRewardBot {
        uint256 total_rewards;
        for(uint i=0;i<rewards.length;i++){
            executionRewards[rewards[i].rollupAdmin] += rewards[i].amount;
            total_rewards+=rewards[i].amount;
            emit RollupExecutionRewardUpdated(rewards[i].rollupAdmin, rewards[i].amount);
        }
        if (total_rewards>(rewardsEarned-rewardsClaimed)) revert IncorrectRewards();
    }

    /**
     * This function can be used by rollupAdmin to claim the proposer rewards asscociated with their validators
     */
    function claimRewards() external {
        if (executionRewards[msg.sender] == 0) revert RewardNotPresent();
        uint256 amount_to_send = executionRewards[msg.sender];
        rewardsClaimed+=amount_to_send;
        executionRewards[msg.sender] = 0;
        (bool rewardSent,bytes memory data) = msg.sender.call{
            value: amount_to_send,
            gas: 5000
        }("");
        if (rewardSent) emit ExecutionRewardSent(amount_to_send,msg.sender);
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

/**
 * @title Ownable Contract
 * @author RohitAudit
 * @dev This contract is used to implement ownable features to the contracts
 */
contract Ownable {
    address private owner;
    bool private initialized = false;

    event OwnerChanged(address oldOwner, address newOwner);
    error NotOwner();
    error ContractAlreadyInitialized();
    error IncorrectAddress();
    modifier onlyOwner() {
        if (msg.sender != owner) revert NotOwner();
        _;
    }

    modifier initilizeOnce() {
        if (initialized) revert ContractAlreadyInitialized();
        _;
    }

    function getOwner() external view returns (address) {
        return owner;
    }

    function _ownableInit(address _owner) internal {
        owner = _owner;
        initialized = true;
    }

    /**
     * This function transfers the ownership of the contract
     * @param newOwner New Owner of the contract
     */
    function transferOwnership(address newOwner) external onlyOwner{
        if (newOwner == address(0)) revert IncorrectAddress();

        emit OwnerChanged(owner, newOwner);
        owner = newOwner;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"_rewardBot","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ContractAlreadyInitialized","type":"error"},{"inputs":[],"name":"IncorrectAddress","type":"error"},{"inputs":[],"name":"IncorrectRewards","type":"error"},{"inputs":[],"name":"NotOwner","type":"error"},{"inputs":[],"name":"NotRewardBot","type":"error"},{"inputs":[],"name":"RewardNotPresent","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"reward_bot","type":"address"}],"name":"ChangeRewardBotAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewards","type":"uint256"},{"indexed":false,"internalType":"address","name":"rollupAdmin","type":"address"}],"name":"ExecutionRewardSent","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"rewards","type":"uint256"}],"name":"ExecutionRewardsReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"rollupAdmin","type":"address"},{"indexed":false,"internalType":"uint256","name":"rewards","type":"uint256"}],"name":"RollupExecutionRewardUpdated","type":"event"},{"inputs":[{"internalType":"address","name":"_bot_address","type":"address"}],"name":"changeRewardBotAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"executionRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardBot","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardsClaimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardsEarned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"rollupAdmin","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct ValidatorExecutionRewards.RollupExecutionReward[]","name":"rewards","type":"tuple[]"}],"name":"updateRewardsRollup","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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