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js-waku-examples
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Merge pull request #126 from waku-org/rln-send-message

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fryorcraken.eth 2022-10-05 13:45:07 +11:00 committed by GitHub
parent 61d8c8ca52 b6d9942b11
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1 changed files with 154 additions and 99 deletions
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rln-js/index.html
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@ -9,21 +9,24 @@
<body> <body>
<div><h1>RLN</h1> <div><h1>Waku RLN</h1>
<div><h2>Wallet</h2> <div><span id='status'></span></div>
<div id='wallet'></div> <div><h2>Blockchain</h2>
<button disabled id='connect-wallet' type='button'>Connect Wallet</button> <div><h3>Wallet</h3>
<p>Address: <span id='address'></span></p>
<button id='connect-wallet' type='button'>Connect Wallet</button>
</div>
<div><h3>Contract Data</h3>
<p>Latest membership id on contract: <span id='latest-membership-id'></span></p>
<button disabled id='retrieve-rln-details' type='button'>Retrieve contract state from blockchain
</button>
</div>
</div> </div>
<div><h2>RLN</h2> <div><h2>Credentials</h2>
<button disabled id='retrieve-rln-details' type='button'>Retrieve RLN contract state from blockchain</button> <p>You can either generate new credentials:</p>
</div>
<p>You can either generate new credentials:</p><br/>
<button disabled id='generate-credentials' type='button'>Generate RLN Credentials</button> <button disabled id='generate-credentials' type='button'>Generate RLN Credentials</button>
<p>Or import existing ones:</p><br/> <p>Or import existing ones:</p>
<div>
<label for="membership-id">Membership ID (your index in the RLN smart contract):</label> <label for="membership-id">Membership ID (your index in the RLN smart contract):</label>
<input id="membership-id" name="membership-id" type="text"><br> <input id="membership-id" name="membership-id" type="text"><br>
<label for="id-key">RLN Identity Key (hex string):</label> <label for="id-key">RLN Identity Key (hex string):</label>
@ -31,31 +34,22 @@
<label for="commitment-key">RLN Commitment Key (hex string):</label> <label for="commitment-key">RLN Commitment Key (hex string):</label>
<input id="commitment-key" name="commitment-key" type="text"><br> <input id="commitment-key" name="commitment-key" type="text"><br>
<button disabled id='import-button' type='button'>Import RLN Credentials</button> <button disabled id='import-button' type='button'>Import RLN Credentials</button>
</div>
<div><h2>Credentials</h2> <p><strong>Membership id: </strong><span id="id">none</span></p>
<div><h3>Membership id</h3> <p><strong>Key: </strong><span id="key">none</span></p>
<div id="id"></div> <p><strong>Commitment: </strong><span id="commitment">none</span></p>
</div>
<div><h3>Key</h3>
<div id="key"></div>
</div>
<div><h3>Commitment</h3>
<div id="commitment"></div>
</div>
<button disabled id='register-button' type='button'>Register Credentials in Contract</button> <button disabled id='register-button' type='button'>Register Credentials in Contract</button>
</div> </div>
</div>
<div><h1>Waku</h1> <div><h1>Waku</h1>
<div id='status'></div> <div id="waku-status"></div>
<br/>
<label for='remote-multiaddr'>Remote peer's multiaddr</label> <label for='remote-multiaddr'>Remote peer's multiaddr</label>
<input id='remote-multiaddr' <input id='remote-multiaddr'
type='text' type='text'
value="/dns4/node-01.ac-cn-hongkong-c.wakuv2.test.statusim.net/tcp/443/wss/p2p/16Uiu2HAkvWiyFsgRhuJEb9JfjYxEkoHLgnUQmr1N5mKWnYjxYRVm"> value="/dns4/node-01.ac-cn-hongkong-c.wakuv2.test.statusim.net/tcp/443/wss/p2p/16Uiu2HAkvWiyFsgRhuJEb9JfjYxEkoHLgnUQmr1N5mKWnYjxYRVm">
<button id='dial' type='button' disabled>Dial</button> <button disabled id='dial' type='button'>Dial</button>
<br/> <br/>
<label for='nick-input'>Your nickname</label> <label for='nick-input'>Your nickname</label>
<input id='nick-input' placeholder='Choose a nickname' type='text'> <input id='nick-input' placeholder='Choose a nickname' type='text'>
@ -65,72 +59,102 @@
<label for='textInput'>Message text</label> <label for='textInput'>Message text</label>
<input disabled id='textInput' placeholder='Type your message here' type='text'> <input disabled id='textInput' placeholder='Type your message here' type='text'>
<button disabled id='sendButton' type='button'>Send message using Light Push</button> <button disabled id='sendButton' type='button'>Send message using Light Push</button>
<span id='sending-status'></span>
<br/> <br/>
<div id="messages"></div> <div id="messages"></div>
</div>
</div> </div>
<script type='module'> <script type='module'>
import {utils} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/index.js'; import {utils} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/index.js';
import {createLightNode} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/create_waku.js' import {createLightNode} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/create_waku.js'
import {waitForRemotePeer} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/wait_for_remote_peer.js' import {waitForRemotePeer} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/wait_for_remote_peer.js'
import {EncoderV0, DecoderV0} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/waku_message/version_0.js' import {
EncoderV0,
DecoderV0
} from 'https://unpkg.com/js-waku@0.29.0-29436ea/bundle/lib/waku_message/version_0.js'
import {protobuf} from "https://taisukef.github.io/protobuf-es.js/dist/protobuf-es.js"; import {protobuf} from "https://taisukef.github.io/protobuf-es.js/dist/protobuf-es.js";
import {create, MembershipKey, RLNEncoder} from "https://unpkg.com/@waku/rln@0.0.10/bundle/index.js"; import {
create,
MembershipKey,
RLNDecoder,
RLNEncoder
} from "https://unpkg.com/@waku/rln@0.0.10/bundle/index.js";
import {ethers} from "https://unpkg.com/ethers@5.0.7/dist/ethers-all.esm.min.js" import {ethers} from "https://unpkg.com/ethers@5.0.7/dist/ethers-all.esm.min.js"
// RLN Elements const statusSpan = document.getElementById('status')
// Blockchain Elements
const addressDiv = document.getElementById('address');
const connectWalletButton = document.getElementById('connect-wallet');
const latestMembershipSpan = document.getElementById('latest-membership-id')
const retrieveRLNDetailsButton = document.getElementById('retrieve-rln-details')
// Credentials Elements
const generateCredsButton = document.getElementById('generate-credentials') const generateCredsButton = document.getElementById('generate-credentials')
const idDiv = document.getElementById('id');
const keyDiv = document.getElementById('key');
const commitmentDiv = document.getElementById('commitment');
const membershipIdInput = document.getElementById('membership-id') const membershipIdInput = document.getElementById('membership-id')
const identityKeyInput = document.getElementById('id-key') const identityKeyInput = document.getElementById('id-key')
const commitmentKeyInput = document.getElementById('commitment-key') const commitmentKeyInput = document.getElementById('commitment-key')
const importButton = document.getElementById('import-button') const importButton = document.getElementById('import-button')
const connectWalletButton = document.getElementById('connect-wallet');
const retrieveRLNDetailsButton = document.getElementById('retrieve-rln-details') const idDiv = document.getElementById('id');
const keyDiv = document.getElementById('key');
const commitmentDiv = document.getElementById('commitment');
const registerButton = document.getElementById('register-button'); const registerButton = document.getElementById('register-button');
// Waku Elements // Waku Elements
const statusDiv = document.getElementById('status'); const statusDiv = document.getElementById('waku-status');
const dialButton = document.getElementById('dial')
const remoteMultiAddrInput = document.getElementById('remote-multiaddr') const remoteMultiAddrInput = document.getElementById('remote-multiaddr')
const dialButton = document.getElementById('dial')
const nicknameInput = document.getElementById('nick-input') const nicknameInput = document.getElementById('nick-input')
const setNickButton = document.getElementById('set-nick') const setNickButton = document.getElementById('set-nick')
const textInput = document.getElementById('textInput'); const textInput = document.getElementById('textInput');
const sendButton = document.getElementById('sendButton'); const sendButton = document.getElementById('sendButton');
const walletDiv = document.getElementById('wallet'); const sendingStatusSpan = document.getElementById('sending-status');
const messagesDiv = document.getElementById('messages') const messagesDiv = document.getElementById('messages')
let membershipId; let membershipId, membershipKey, encoder, node, nodeConnected, nick, rlnInstance;
let membershipKey;
let encoder;
let nodeConnected;
let nick;
let retrievedRLNEvents = false; let retrievedRLNEvents = false;
let rlnInstance; const rlnInstancePromise = create();
// Load zero-kit WASM blob. // Load zero-kit WASM blob.
(async () => {
rlnInstance = await create()
generateCredsButton.disabled = false;
connectWalletButton.disabled = false;
})();
statusSpan.innerText = 'WASM Blob download in progress...'
rlnInstancePromise.then((_rlnInstance) => {
rlnInstance = _rlnInstance
statusSpan.innerText = 'WASM Blob download in progress... done!'
updateFields()
setTimeout(() => {
statusSpan.innerText = ''
}, 5000)
})
const ContentTopic = "/toy-chat/2/luzhou/proto";
// Protobuf
const ProtoChatMessage = new protobuf.Type("ChatMessage")
.add(new protobuf.Field("timestamp", 1, "uint64"))
.add(new protobuf.Field("nick", 2, "string"))
.add(new protobuf.Field("text", 3, "bytes"));
// Function to update the fields to guide the user by disabling buttons.
const updateFields = () => { const updateFields = () => {
if (membershipKey) { if (membershipKey) {
keyDiv.innerHTML = utils.bytesToHex(membershipKey.IDKey) keyDiv.innerHTML = utils.bytesToHex(membershipKey.IDKey)
commitmentDiv.innerHTML = utils.bytesToHex(membershipKey.IDCommitment) commitmentDiv.innerHTML = utils.bytesToHex(membershipKey.IDCommitment)
idDiv.innerHTML = membershipId || "-" idDiv.innerHTML = membershipId || "-"
if (membershipId) { if (membershipId && rlnInstance) {
encoder = new RLNEncoder( encoder = new RLNEncoder(
new EncoderV0(ContentTopic), new EncoderV0(ContentTopic),
rlnInstance, rlnInstance,
@ -140,6 +164,10 @@
} }
} }
generateCredsButton.disabled = !rlnInstance
registerButton.disabled = !(membershipKey && retrievedRLNEvents && !membershipId)
importButton.disabled = !(membershipIdInput.value importButton.disabled = !(membershipIdInput.value
&& identityKeyInput.value && identityKeyInput.value
&& commitmentKeyInput.value); && commitmentKeyInput.value);
@ -149,8 +177,14 @@
sendButton.disabled = !readyToSend; sendButton.disabled = !readyToSend;
setNickButton.disabled = !nicknameInput.value; setNickButton.disabled = !nicknameInput.value;
dialButton.disabled = !(node && node.isStarted() && retrievedRLNEvents)
retrieveRLNDetailsButton.disabled = !rlnInstance && !retrievedRLNEvents;
} }
// Blockchain
generateCredsButton.onclick = () => { generateCredsButton.onclick = () => {
membershipKey = rlnInstance.generateMembershipKey() membershipKey = rlnInstance.generateMembershipKey()
updateFields(); updateFields();
@ -168,13 +202,6 @@
updateFields() updateFields()
} }
// Protobuf
const ProtoChatMessage = new protobuf.Type("ChatMessage")
.add(new protobuf.Field("timestamp", 1, "uint64"))
.add(new protobuf.Field("nick", 2, "string"))
.add(new protobuf.Field("text", 3, "bytes"));
// Wallet
const checkChain = async (chainId) => { const checkChain = async (chainId) => {
retrieveRLNDetailsButton.disabled = retrievedRLNEvents || chainId !== 5; retrieveRLNDetailsButton.disabled = retrievedRLNEvents || chainId !== 5;
registerButton.disabled = !(chainId === 5 && retrievedRLNEvents); registerButton.disabled = !(chainId === 5 && retrievedRLNEvents);
@ -183,11 +210,6 @@
} }
} }
const checkCurrentChain = async () => {
const network = await provider.getNetwork();
checkChain(network.chainId);
}
const rlnDeployBlk = 7677135; const rlnDeployBlk = 7677135;
const rlnAddress = "0x367F3e869cF2E1DD28644E308b42652cb6fcDA72"; const rlnAddress = "0x367F3e869cF2E1DD28644E308b42652cb6fcDA72";
const rlnAbi = [ const rlnAbi = [
@ -207,22 +229,27 @@
try { try {
const idCommitment = ethers.utils.zeroPad(ethers.utils.arrayify(pubkey), 32); const idCommitment = ethers.utils.zeroPad(ethers.utils.arrayify(pubkey), 32);
rlnInstance.insertMember(idCommitment); rlnInstance.insertMember(idCommitment);
console.debug("IDCommitment registered in tree", idCommitment, index.toNumber()); const indexInt = index.toNumber()
if (!latestMembershipSpan.innerText || indexInt > latestMembershipSpan.innerText) {
latestMembershipSpan.innerText = indexInt
}
console.debug("IDCommitment registered in tree", idCommitment, indexInt);
} catch (err) { } catch (err) {
alert(err); // TODO: the merkle tree can be in a wrong state. The app should be disabled console.error(err); // TODO: the merkle tree can be in a wrong state. The app should be disabled
} }
} }
const setAccounts = acc => { const setAccounts = acc => {
accounts = acc; accounts = acc;
walletDiv.innerHTML = accounts.length ? accounts[0] : ""; addressDiv.innerHTML = accounts.length ? accounts[0] : "";
} }
connectWalletButton.onclick = async () => { connectWalletButton.onclick = async () => {
try { try {
accounts = await provider.send("eth_requestAccounts", []); accounts = await provider.send("eth_requestAccounts", []);
setAccounts(accounts); setAccounts(accounts);
checkCurrentChain(); const network = await provider.getNetwork();
checkChain(network.chainId);
} catch (e) { } catch (e) {
console.log("No web3 provider available", e); console.log("No web3 provider available", e);
} }
@ -239,18 +266,13 @@
handleMembership(event.args.pubkey, event.args.index, event); handleMembership(event.args.pubkey, event.args.index, event);
}); });
alert("Loaded all events from contract");
retrievedRLNEvents = true; retrievedRLNEvents = true;
// TODO: at this point it should be possible to register a credential and send messages
// TODO: emit an event to enable message form and register button
retrieveRLNDetailsButton.disabled = true;
registerButton.disabled = false;
// reacting to new registrations // reacting to new registrations
rlnContract.on(filter, (pubkey, index, event) => { rlnContract.on(filter, (pubkey, index, event) => {
handleMembership(event.args.pubkey, event.args.index, event); handleMembership(event.args.pubkey, event.args.index, event);
}); });
updateFields()
} }
window.ethereum.on('accountsChanged', setAccounts); window.ethereum.on('accountsChanged', setAccounts);
@ -294,15 +316,28 @@
updateFields() updateFields()
} }
const ContentTopic = "/toy-chat/2/luzhou/proto";
const decoder = new DecoderV0(ContentTopic);
let messages = []; let messages = [];
const updateMessages = (msgs, div) => { const updateMessages = () => {
div.innerHTML = "<ul>" messagesDiv.innerHTML = "<ul>"
messages.forEach(msg => div.innerHTML += "<li>" + msg + "</li>") messages.forEach(msg => {
div.innerHTML += "</ul>" messagesDiv.innerHTML += `<li>${msg.msg} - [epoch: ${msg.epoch}, proof: ${msg.proofState} ]</li>`
if (msg.proofState === "verifying...") {
console.log("Verifying proof")
const res = msg.verify()
console.log("proof verified!", res)
if (res === undefined) {
msg.proofState = "no proof attached"
} else if (res) {
msg.proofState = "verified."
} else {
msg.proofState = "invalid!"
}
updateMessages()
}
})
messagesDiv.innerHTML += "</ul>"
} }
const callback = (wakuMessage) => { const callback = (wakuMessage) => {
@ -310,11 +345,24 @@
const time = new Date(); const time = new Date();
time.setTime(Number(timestamp)); time.setTime(Number(timestamp));
messages.push(`(${nick}) <strong>${utils.bytesToUtf8(text)}</strong> <i>[${time.toString()}]</i>`); let proofState, verify;
updateMessages(messages, messagesDiv) if (typeof wakuMessage.verify === "undefined") {
proofState = "no proof attached";
} else {
verify = wakuMessage.verify.bind(wakuMessage);
proofState = "verifying...";
} }
let node; messages.push({
msg: `(${nick}) <strong>${utils.bytesToUtf8(text)}</strong> <i>[${time.toString()}]</i>`,
epoch: wakuMessage.epoch,
verify,
proofState
});
updateMessages()
}
(async () => { (async () => {
statusDiv.innerHTML = '<p>Creating Waku node.</p>'; statusDiv.innerHTML = '<p>Creating Waku node.</p>';
node = await createLightNode(); node = await createLightNode();
@ -322,7 +370,6 @@
statusDiv.innerHTML = '<p>Starting Waku node.</p>'; statusDiv.innerHTML = '<p>Starting Waku node.</p>';
await node.start(); await node.start();
statusDiv.innerHTML = '<p>Waku node started.</p>'; statusDiv.innerHTML = '<p>Waku node started.</p>';
dialButton.disabled = false;
updateFields() updateFields()
})() })()
@ -336,6 +383,9 @@
await node.dial(ma, ["filter", "lightpush"]) await node.dial(ma, ["filter", "lightpush"])
await waitForRemotePeer(node, ["filter", "lightpush"]); await waitForRemotePeer(node, ["filter", "lightpush"]);
statusDiv.innerHTML = '<p>Waku node connected.</p>'; statusDiv.innerHTML = '<p>Waku node connected.</p>';
await rlnInstancePromise;
const decoder = new RLNDecoder(rlnInstance, new DecoderV0(ContentTopic));
await node.filter.subscribe([decoder], callback) await node.filter.subscribe([decoder], callback)
statusDiv.innerHTML = '<p>Waku node subscribed.</p>'; statusDiv.innerHTML = '<p>Waku node subscribed.</p>';
nodeConnected = true; nodeConnected = true;
@ -347,9 +397,14 @@
const msg = ProtoChatMessage.create({text, nick, timestamp: timestamp.valueOf()}); const msg = ProtoChatMessage.create({text, nick, timestamp: timestamp.valueOf()});
const payload = ProtoChatMessage.encode(msg).finish(); const payload = ProtoChatMessage.encode(msg).finish();
console.log("Sending message with proof...") console.log("Sending message with proof...")
sendingStatusSpan.innerText = 'sending...'
await node.lightPush.push(encoder, {payload, timestamp}); await node.lightPush.push(encoder, {payload, timestamp});
sendingStatusSpan.innerText = 'sent!'
console.log("Message sent!") console.log("Message sent!")
textInput.value = null; textInput.value = null;
setTimeout(() => {
sendingStatusSpan.innerText = ''
}, 5000)
}; };
</script> </script>
</body> </body>