Ethscriptions hosting & resolving domains (handles/words/ens), not just "user profiles" with `application/vnd.esc.user.profile+json`

name-service-resolver.js

import { verifyMessage } from "viem";

/**
 * Ethscriptions Hosting & Resolving of ens domains & ethscriptions handles eg. `data,hirsch`
 *
 * `data:application/vnd.esc.wgw.deploy.`
 * -> hex = 646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e
 *
 * `+json`
 * -> hex = 2b6a736f6e
 *
 * - comma = 2c
 * - colon = 3b
 *
 * `;base64,` = 3b6261736536342c
 */

let regex =
  /646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e.+2b6a736f6e(2c|3b6261736536342c).+/;

function toHex(x) {
  return x
    .split("")
    .map((c) => c.charCodeAt(0).toString(16).padStart(2, "0"))
    .join("");
}

function fromHex(x) {
  return x
    .split(/(\w\w)/g)
    .filter((p) => !!p)
    .map((c) => String.fromCharCode(parseInt(c, 16)))
    .join("");
}

const ethsHandle = `hirsch`;
const ensDomain = `wgw.eth`;

// all 3 are required
// base64-ed without signature
// const b64ed = `eyJ1cmkiOiJlc2M6Ly8weGVjMTI5OWM4NmNjN2M0NmY4ZGYwNjExNWMzMTQ1MTExY2NiYTlhYzJiMTE4Njg5N2Y0MzE4M2YyYzU3NTM4NTMiLCJtaW1lIjoidGV4dC9odG1sIiwib3duZXIiOiIweEEyMEMwN0Y5NEExMjdmRDc2RTYxZmJlQTEwMTljQ2U3NTkyMjUwMDIiLCJyZWRpcmVjdCI6ZmFsc2UsInR3aXR0ZXIiOiJ3Z3dfZXRoIiwiYXZhdGFyIjoiZXNjOi8vMHhlZWY1OGJlZjUyYjI5MmQyZGUxZDJjM2YzOWJlODRjN2VmYjkzZDg1OGIyNDY1Zjc0NWYxNmEzYTE4NWYwYjRiIiwiY292ZXIiOiJlc2M6Ly8weDI0MTEzOTZkNmZiMWVhZGFmNjhhMjlhMzgxZjQ0ZmQ5ZDY0Y2Y0Y2QxODUyODk2YzUzMDk3NjFkM2ExYjE4ZDAifQ==`;
// const b64withSig = `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`;
// const decodedData = `data:application/vnd.esc.wgw.deploy.tunnckocore+json;base64,${b64withSig}`;

// const decodedData = `data:application/vnd.esc.wgw.deploy.tunnckocore+json,${JSON.stringify(
//   {
//     // or ipfs://, or https:// and etc. (neko cat Ethscription #540102)
//     uri: `esc://0xec1299c86cc7c46f8df06115c3145111ccba9ac2b1186897f43183f2c5753853`,
//     // if application/json, then there can be `avatar`, `twitter` and etc fields instead of here
//     mime: "text/html",
//     // hirsch address is the owner of both that content uri, AND the `hirsch` handle
//     owner: `0xA20C07F94A127fD76E61fbeA1019cCe759225002`,

//     // required (but excluded when they sign) - real signature
//     // signature: `0xe77a9a4bd1243b859c0e536728c852ea868cc89d6e47f4100f4aff8f4773589416cb7795d1499052eca2bf811d9b296a2229fbe78870d5178cba3c7d3b2f245c1b`,

//     // optional
//     redirect: false,
//     twitter: "wgw_eth",
//     avatar: `esc://0xeef58bef52b292d2de1d2c3f39be84c7efb93d858b2465f745f16a3a185f0b4b`,
//     cover: `esc://0x2411396d6fb1eadaf68a29a381f44fd9d64cf4cd1852896c5309761d3a1b18d0`,
//   }
// )}`;

const decodedData = `data:application/vnd.esc.wgw.deploy.twitty+json,${JSON.stringify(
  {
    // or ipfs://, or https:// and etc. (ethscolors mint site html, Ethscription #1041468)
    uri: `esc://0x0e7d6411f513e489d5719077f9b626740d2add792adee29880e23837ad15643f`,
    // if application/json, then there can be `avatar`, `twitter` and etc fields instead of here
    mime: "text/html",
    // hirsch address is the owner of both that content uri, AND the `hirsch` handle
    owner: `0xA20C07F94A127fD76E61fbeA1019cCe759225002`,

    // required (but excluded when they sign) - real signature
    signature: `0x0504cb5e77e93c246999cf56ea47c457e9a100e7f1b0225cd78f75fea1a3bdb0529de305845e432a1ad6c7f4c5fef017e694599d6a073cb766ffe4f61e4b3eb01c`,
  }
)}`;

// const encodedData = toHex(decodedData);
// console.log("decoded ->", decodedData);
// console.log("encodedData ->", encodedData);

// console.log("data decoded ->", decodedData);
// => data:application/vnd.esc.wgw.deploy.5848.eth+json,{"uri":"esc://0x9edf9e18a1c6e533010e59e16522cbdd88760aa23fedaa112cf1e4321131a963","mime":"text/html","owner":"0xA20C07F94A127fD76E61fbeA1019cCe759225002"}

// console.log("valid ->", regex.test(encodedData));
// => true

/**
 * So how it's supposed to work:
 *
 * 1. User creates a handle, e.g. `hirsch`
 * 2. User wants to host some content and use the handle/ens to access it (through some resolver sites)
 * 3. User creates a data like this:
 *   `data:application/vnd.esc.wgw.deploy.<ens_or_handle>,<json_data>`
 * or base64-ed `data:application/vnd.esc.wgw.deploy.<ens_or_handle>;base64,<base64_data>`
 *
 * 4. Signs it, and adds the signature to the json data as `signature` field.
 * 5. Ethscribes the whole thing.
 *
 * So, a resolver should detect that "mime type", and:
 * 1. validate it against the regex
 * 2. get the handle/ens from mimetype
 * 3. recover the address from the signature (eg. the "message" is the whole thing without the signature field)
 * 4. verify the recovered address against
 *   - a) the owner field
 *   - b) this ethscription is owned by this address
 *   - c) this ens/handle is owned by this address
 * 5. resolve the content from the given `uri`
 * 6. return the content + plus the eventual metadata (eg. avatar, cover, twitter linsk and etc)
 */

// write that into db or something
function parseInput(calldata) {
  const regex =
    /646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e.+2b6a736f6e(2c|3b6261736536342c).+/;

  const isValid = regex.test(calldata);

  if (!isValid) {
    console.log("invalid calldata");
    return false;
  }

  const base64Hexed = "3b6261736536342c";
  const isBase64 = /3b6261736536342c/.test(calldata);
  const delimiter = isBase64 ? "2b6a736f6e" + base64Hexed : "2b6a736f6e" + "2c";

  const jsonIndex = calldata.indexOf(delimiter);

  const data = fromHex(calldata.slice(jsonIndex + delimiter.length));
  let json = null;

  try {
    json = JSON.parse(isBase64 ? atob(data) : data);
  } catch (error) {
    console.log("invalid json data");
    return false;
  }

  if (!json.uri || !json.mime || !json.owner || !json.signature) {
    console.log("missing required fields");
    return false;
  }

  const name = fromHex(
    calldata.slice(
      "646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e"
        .length,
      jsonIndex
    )
  );

  json.domain = name;
  json.deployUri = fromHex(calldata);
  json.isBase64 = isBase64;

  return { name, data: json };
}

async function sha256(message) {
  const msgUint8 = new TextEncoder().encode(message);
  const hashBuffer = await crypto.subtle.digest("SHA-256", msgUint8);
  const hashArray = Array.from(new Uint8Array(hashBuffer));
  const hashHex = hashArray
    .map((b) => b.toString(16).padStart(2, "0"))
    .join("");

  return hashHex;
}

async function getDataURI(blobOrFile) {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onload = () => resolve(reader.result);
    reader.onerror = () => resolve(reader.error);
    reader.readAsDataURL(blobOrFile);
  });
}

// invalid calldata `;<base64_data>` missing the `base64,` prefix
// handleInput(
//   `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`
// );

// valid, base64-ed calldata (tunnckocore.eth)
// const result = parseInput(
//   `646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e74756e6e636b6f636f72652e6574682b6a736f6e3b6261736536342c7b22757269223a226573633a2f2f307861306337653730353765303837383065663535353932626166653938633662313036643861633734323661303264366331666234356262343263393666383966222c226d696d65223a22746578742f68746d6c222c226f776e6572223a22307832303532303531613034373466623062393832383362336633386331336230623062366133363737222c227369676e6174757265223a22307831623263376230623062366133363737222c227265646972656374223a66616c73652c2274776974746572223a227767775f657468222c22617661746172223a226573633a2f2f307865656635386265663532623239326432646531643263336633396265383463376566623933643835386232343635663734356631366133613138356630623462222c22636f766572223a226573633a2f2f307832343131333936643666623165616461663638613239613338316634346664396436346366346364313835323839366335333039373631643361316231386430227d`
// );

// console.log("res ->", result);

// valid, data plain json
// handleInput(
//   `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`
// );

const db = Object.fromEntries(
  [
    // valid, base64-ed calldata (tunnckocore)
    parseInput(
      `646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e74756e6e636b6f636f72652b6a736f6e3b6261736536342c65794a31636d6b694f694a6c63324d364c7938776547566a4d5449354f574d344e6d4e6a4e324d304e6d59345a4759774e6a45784e574d7a4d5451314d54457859324e6959546c68597a4a694d5445344e6a67354e3259304d7a45344d325979597a55334e544d344e544d694c434a746157316c496a6f69644756346443396f6447317349697769623364755a5849694f694977654545794d454d774e3059354e4545784d6a646d52446332525459785a6d4a6c515445774d546c6a513255334e546b794d6a55774d4449694c434a7a6157647559585231636d55694f694977654751314e545a6a4e5459324e5463794f5441344d7a497a4e4441794e325a6b593259314d4755334e6d49314e6d4533596a51774f4745354e4449334e5451774f475a6b595449335a4745774d3255355a6a63314e544d79595451794f5459774d7a6b7a4e5759304f54686c4e6a497a4d4749784d44646c4d474577596a497a4e7a6732596a4d774f446b304e6d4e6c4f4749304e546c68596d566b595463354d6d59304d7a51774e7a5a6b4d574d694c434a795a575270636d566a644349365a6d467363325573496e5233615852305a5849694f694a335a3364665a58526f4969776959585a6864474679496a6f695a584e6a4f6938764d48686c5a5759314f474a6c5a6a5579596a49354d6d51795a4755785a444a6a4d32597a4f574a6c4f44526a4e32566d596a6b7a5a4467314f4749794e4459315a6a63304e5759784e6d457a595445344e575977596a526949697769593239325a5849694f694a6c63324d364c793877654449304d54457a4f545a6b4e6d5a694d5756685a47466d4e6a68684d6a6c684d7a67785a6a51305a6d51355a44593059325930593251784f4455794f446b32597a557a4d446b334e6a466b4d324578596a45345a44416966513d3d`
    ),
    // valid, plain json calldata with ens domain (privacymatters.eth)
    parseInput(
      `646174613a6170706c69636174696f6e2f766e642e6573632e7767772e6465706c6f792e707269766163796d6174746572732e6574682b6a736f6e2c7b22757269223a226573633a2f2f307839656466396531386131633665353333303130653539653136353232636264643838373630616132336665646161313132636631653433323131333161393633222c226d696d65223a22746578742f68746d6c222c226f776e6572223a22307841323043303746393441313237664437364536316662654131303139634365373539323235303032222c227369676e6174757265223a22307839613162363736383062636265623366386664373630363033653435643562653730656139323531656433326232316631396434643531336134616637363537376533653033396232666532653362613130333063643865613033616234636435303334396437646132616561383534326166633164636433343738303935653162227d`
    ),
    // valid, plain json, with handle (twitty)
    parseInput(
      `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`
    ),
  ].map((x) => [x.name, x.data])
);

const FAKE_RESPONSE_FOR_TWITTY = {
  current_owner: "0xA20C07F94A127fD76E61fbeA1019cCe759225002",
  content_uri: `data:application/vnd.esc.wgw.deploy.twitty+json,{"uri":"esc://0x0e7d6411f513e489d5719077f9b626740d2add792adee29880e23837ad15643f","mime":"text/html","owner":"0xA20C07F94A127fD76E61fbeA1019cCe759225002","signature":"0x0504cb5e77e93c246999cf56ea47c457e9a100e7f1b0225cd78f75fea1a3bdb0529de305845e432a1ad6c7f4c5fef017e694599d6a073cb766ffe4f61e4b3eb01c"}`,
};
const FAKE_RESPONSE_FOR_TCK = {
  current_owner: "0xA20C07F94A127fD76E61fbeA1019cCe759225002",
  content_uri: `data:application/vnd.esc.wgw.deploy.tunnckocore+json;base64,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`,
};

const FAKE_RESPONSE = FAKE_RESPONSE_FOR_TCK;
const API_ETHSCRIPTIONS_ENDPOINT = `https://api.ethscriptions.com/api/ethscriptions`;

async function resolveDomain(name) {
  name = name.toLowerCase();
  let isEnsDomain = name.indexOf(".") > 1;
  let isHandle = !isEnsDomain;

  if (isEnsDomain) {
    throw new Error("not implemented yet");
  }

  const entry = db[name];

  if (!entry) {
    throw new Error("no deploy found for this name");
  }

  entry.owner = entry.owner.toLowerCase();

  // Validate ethscription plaintext handles/words
  if (isHandle) {
    console.log("handle ->", entry);

    // 1. verify this ethscription is owned by the `owner` in it (ethscription.current_owner === `owner`)
    // 2. verify that the content_uri of that ethscription is the same as the one parsed/resolved from calldata
    // const res = await fetch(
    //   `https://goerli-api.ethscriptions.com/api/ethscriptions/${ethscriptionId}`
    // ).then((x) => x.json());

    // const res = FAKE_RESPONSE;

    // if (res.current_owner.toLowerCase() !== entry.owner) {
    //   throw new Error("invalid owner");
    // }

    // if (res.content_uri !== entry.deployUri) {
    //   throw new Error("invalid deploy");
    // }

    let isValidSignature = false;

    if (entry.isBase64) {
      const [prefix, b64data] = entry.deployUri.split("base64,");
      const decoded = atob(b64data);
      const parsed = JSON.parse(decoded);
      // console.log("parsed", parsed);
      delete parsed.signature;

      const encoded = btoa(JSON.stringify(parsed));
      // console.log(`${prefix}base64,${encoded}`);

      // const sigAddress = await recoverAddress({
      //   message: `${prefix}base64,${encoded}`,
      //   signature: entry.signature,
      // });

      isValidSignature = await verifyMessage({
        address: entry.owner,
        message: `${prefix}base64,${encoded}`,
        signature: entry.signature,
      });
    } else {
      const signedDeployUri = entry.deployUri.replace(
        `,"signature":"${entry.signature}"`,
        ""
      );

      isValidSignature = await verifyMessage({
        address: entry.owner,
        message: signedDeployUri,
        signature: entry.signature,
      });
    }

    if (!isValidSignature) {
      throw new Error("invalid signature");
    }

    const nameHash = await sha256(`data:,${entry.domain}`);
    const existsResp = await fetch(
      `${API_ETHSCRIPTIONS_ENDPOINT}/exists/${nameHash}`
    ).then((x) => x.json());

    if (!existsResp.result) {
      throw new Error(
        `no such handle/name/word registered -> data:,${entry.domain}`
      );
    }

    if (existsResp.ethscription.current_owner.toLowerCase() !== entry.owner) {
      throw new Error("name not owned by this address (deployer)");
    }

    // then everythign is fine and we can proceed with resolving the content/avatar and etc
  }

  // 3. resolve the content from the given `uri`

  if (entry.redirect) {
    // redirect to the uri, IF it's an ethscription;
    return;
  }

  const resolvedEntry = Object.fromEntries(
    await Promise.all(
      Object.entries(entry).map(async ([key, value]) => {
        if (/uri|avatar|cover/.test(key)) {
          return [key, await resolveUriFromEscProtocol(value)];
        }

        return [key, value];
      })
    )
  );

  console.log(resolvedEntry);
}

async function resolveUriFromEscProtocol(uri) {
  uri = uri.endsWith("/") ? uri.slice(0, -1) : uri;

  const isEscProtocol = uri.startsWith("esc://");
  const isContentPrefixed =
    uri.startsWith("esc://content/") || uri.startsWith("esc://data/");

  const isDataEndpoint =
    uri.endsWith("/data") || uri.endsWith("/content") || isContentPrefixed;

  if (isEscProtocol && !isDataEndpoint) {
    // it's a bare ethscription_id, so we need to fetch the ethscription
    // and get the content_uri from it
    const id = uri.replace("esc://", "");

    const ethsc = await fetch(`${API_ETHSCRIPTIONS_ENDPOINT}/${id}`).then((x) =>
      x.json()
    );

    return ethsc.content_uri;
  } else if (isEscProtocol && isDataEndpoint) {
    const id = isContentPrefixed
      ? uri.replace(/esc:\/\/(content|data)\//, "")
      : uri.replace(/\/(content|data)/, "");

    return fetch(`${API_ETHSCRIPTIONS_ENDPOINT}/${id}/data`)
      .then((x) => x.blob())
      .then(getDataURI);
  } else {
    return uri;
  }
}

// await resolveDomain("tunnckocore");
await resolveDomain("twitty");

// console.log(
//   fromHex(
//     `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`
//   )
// );