New SEA features! (many new features)

[akaoio]

Hello Mark. I'm your old buddy mimiza, it's been a long time. I made some new COOL features:

New features:

Feature 1: Implemented globalThis to make gun, sea work better in Web Worker threads with type=module (es6).

Feature 2: Create a deterministic key pair from a given seed

SEA.pair(null, { seed: "seed" })

Feature 3: Create a deterministic key pair from a given private key

SEA.pair(null, { priv: test1.priv })

Feature 4: Put to user graph without having to be authenticated (provide pair):

var bob = await SEA.pair();
gun.get(`~${bob.pub}`).get('test').put('this is Bob', (ack) => {
  gun.get(`~${bob.pub}`).get('test').once((data) => {
    expect(ack.err).to.not.be.ok()
    expect(data).to.be('this is Bob')
    done();
  })
}, {opt: {authenticator: bob}})

Feature 5: Put to user graph using external authenticator (nested SEA.sign):

var bob = await SEA.pair();
async function authenticator(data) {
  const sig = await SEA.sign(data, bob)
  return sig
}
gun.get(`~${bob.pub}`).get('test').put('this is Bob', (ack) => {
  gun.get(`~${bob.pub}`).get('test').once((data) => {
    expect(ack.err).to.not.be.ok()
    expect(data).to.be('this is Bob')
    done();
  })
}, {opt: {authenticator: authenticator}})

Feature 6: SPECIALS! WebAuthn support: SEA now also support webauthn passkeys. It requires realtime user interaction on browser, so it is impossible to write Nodejs unit tests. So I wrote examples in /examples/webauthn.html and /examples/webauthn.js . User can now put to their gun graph using their webauthn passkey public key and realtime signature.

WebAuthn usage (read the example files for deeper understanding):

const authenticator = async (data) => {
    const challenge = new TextEncoder().encode(data);
    const options = {
        publicKey: {
            challenge,
            rpId: window.location.hostname,
            userVerification: "preferred",
            allowCredentials: [{
                type: "public-key",
                id: credential.rawId
            }],
            timeout: 60000
        }
    };

    const assertion = await navigator.credentials.get(options);
    console.log("SIGNED:", {options, assertion});
    return assertion.response;
};

// Calling webauthn is very simple, just put authenticator in opt.
gun.get(`~${pub}`).get('test').put("hello world", null, { opt: { authenticator }})

// If you are using a cert (SEA.certify) to put to someone else's graph using WebAuthn, call it like this:
gun.get(`~${pub}`).get('test').put("hello world", null, { opt: { authenticator, pub: 'your-pub', cert }})

I also fixed the http.js in examples because it crashes on Windows so often. I removed the "hello people" console.log in gun.js, it's annoying, sorry bro.