Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;
 
/// @title VerifierMetadata
/// @author clowes.eth, for Unruggable
//
// This contract contains chain specific metadata for this chain.
// This data is trustlessly resolved by a chain specific subname of verifier.unruggable.eth on L1.
// It is used as a demonstration of trustless resolution of data from L2 to L1 in the context of our Unruggable Gateways solution.

contract VerifierMetadata {

    event VerifierChanged(address a);
    event TextChanged(string key, string value);

    struct KeyValue {
        string key;
        string value;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Only the contract owner can call this function.");
        _;
    }

    address public owner; // Slot 0

    // This is the address for this chain's verifier contract on Layer 1 Ethereum
    address public verifierAddress; // Slot 1

    // This is a mapping of text records for Layer 1 Ethereum
    mapping(string => string) public texts; // Slot 2

    constructor() {
        owner = msg.sender;
    }

    function configure(address _verifierAddress, KeyValue[] memory _texts) public onlyOwner {
        if (_verifierAddress != verifierAddress) {
            verifierAddress = _verifierAddress;
            emit VerifierChanged(_verifierAddress);
        }

        for (uint i = 0; i < _texts.length; i++) {
            if (keccak256(bytes(texts[_texts[i].key])) != keccak256(bytes(_texts[i].value))) {
                texts[_texts[i].key] = _texts[i].value;
                emit TextChanged(_texts[i].key, _texts[i].value);
            }
        }
    }
}

{
  "remappings": [
    "@unruggable/=lib/unruggable-gateways/",
    "@eth-optimism/=lib/unruggable-gateways/lib/optimism/packages/",
    "@openzeppelin/contracts/=lib/unruggable-gateways/lib/openzeppelin-contracts/contracts/",
    "ds-test/=lib/unruggable-gateways/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/unruggable-gateways/lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/unruggable-gateways/lib/forge-std/src/",
    "openzeppelin-contracts/=lib/unruggable-gateways/lib/openzeppelin-contracts/",
    "optimism/=lib/unruggable-gateways/lib/optimism/packages/contracts-bedrock/src/",
    "unruggable-gateways/=lib/unruggable-gateways/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"key","type":"string"},{"indexed":false,"internalType":"string","name":"value","type":"string"}],"name":"TextChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"a","type":"address"}],"name":"VerifierChanged","type":"event"},{"inputs":[{"internalType":"address","name":"_verifierAddress","type":"address"},{"components":[{"internalType":"string","name":"key","type":"string"},{"internalType":"string","name":"value","type":"string"}],"internalType":"struct VerifierMetadata.KeyValue[]","name":"_texts","type":"tuple[]"}],"name":"configure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"texts","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"verifierAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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