214 lines
7.5 KiB
HTML
214 lines
7.5 KiB
HTML
<!DOCTYPE html>
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<html lang='en'>
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<head>
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<meta charset='UTF-8'/>
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<meta content='width=device-width, initial-scale=1.0' name='viewport'/>
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<title>JS-Waku light node example</title>
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</head>
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<body>
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<div><h1>RLN</h1>
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<p>You can either generate new credentials:</p><br/>
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<button id='generate-credentials' type='button' disabled>Generate RLN Credentials</button>
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<p>Or import existing ones:</p><br/>
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<div>
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<label for="membership-id">Membership ID (your index in the RLN smart contract):</label>
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<input id="membership-id" name="membership-id" type="text"><br>
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<label for="id-key">RLN Identity Key (hex string):</label>
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<input id="id-key" name="id-key" type="text"><br>
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<label for="commitment-key">RLN Commitment Key (hex string):</label>
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<input id="commitment-key" name="commitment-key" type="text"><br>
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<button disabled id='import-button' type='button'>Import RLN Credentials</button>
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</div>
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<div><h2>Credentials</h2>
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<div><h3>Membership id</h3>
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<div id="id"></div>
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</div>
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<div><h3>Key</h3>
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<div id="key"></div>
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</div>
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<div><h3>Commitment</h3>
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<div id="commitment"></div>
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</div>
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</div>
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</div>
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<div><h1>Waku</h1>
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<div id='status'></div>
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<br/>
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<label for='nick-input'>Your nickname</label>
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<input id='nick-input' placeholder='Choose a nickname' type='text'>
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<button disabled id='set-nick' type='button'>Set nickname</button>
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<br/>
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<label for='textInput'>Message text</label>
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<input id='textInput' placeholder='Type your message here' type='text' disabled>
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<button id='sendButton' type='button' disabled>Send message using Light Push</button>
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<br/>
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<div id="messages"></div>
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</div>
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<script type='module'>
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import {utils} from 'https://unpkg.com/js-waku@0.29.0-7714812/bundle/index.js';
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import {createLightNode} from 'https://unpkg.com/js-waku@0.29.0-7714812/bundle/lib/create_waku.js'
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import {waitForRemotePeer} from 'https://unpkg.com/js-waku@0.29.0-7714812/bundle/lib/wait_for_remote_peer.js'
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import {
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PeerDiscoveryStaticPeers
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} from "https://unpkg.com/js-waku@0.29.0-7714812/bundle/lib/peer_discovery_static_list";
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import {
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getPredefinedBootstrapNodes
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} from "https://unpkg.com/js-waku@0.29.0-7714812/bundle/lib/predefined_bootstrap_nodes";
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import {EncoderV0, DecoderV0} from 'https://unpkg.com/js-waku@0.29.0-7714812/bundle/lib/waku_message/version_0.js'
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import {protobuf} from "https://taisukef.github.io/protobuf-es.js/dist/protobuf-es.js";
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import {create, MembershipKey, RLNEncoder} from "https://unpkg.com/@waku/rln@0.0.8-964df01/bundle/index.js";
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// RLN Elements
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const generateCredsButton = document.getElementById('generate-credentials')
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const idDiv = document.getElementById('id');
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const keyDiv = document.getElementById('key');
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const commitmentDiv = document.getElementById('commitment');
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const membershipIdInput = document.getElementById('membership-id')
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const identityKeyInput = document.getElementById('id-key')
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const commitmentKeyInput = document.getElementById('commitment-key')
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const importButton = document.getElementById('import-button')
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let rlnInstance;
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(async () => {
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rlnInstance = await create()
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generateCredsButton.disabled = false;
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})();
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// Waku Elements
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const statusDiv = document.getElementById('status');
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const nicknameInput = document.getElementById('nick-input')
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const setNickButton = document.getElementById('set-nick')
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const textInput = document.getElementById('textInput');
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const sendButton = document.getElementById('sendButton');
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const messagesDiv = document.getElementById('messages')
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let membershipId;
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let membershipKey;
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let encoder;
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let nodeConnected;
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let nick;
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const updateFields = () => {
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if (membershipKey && membershipId) {
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keyDiv.innerHTML = utils.bytesToHex(membershipKey.IDKey)
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commitmentDiv.innerHTML = utils.bytesToHex(membershipKey.IDCommitment)
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idDiv.innerHTML = membershipId
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encoder = new RLNEncoder(
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new EncoderV0(ContentTopic),
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rlnInstance,
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membershipId,
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membershipKey
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);
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}
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importButton.disabled = !(membershipIdInput.value
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&& identityKeyInput.value
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&& commitmentKeyInput.value);
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const readyToSend = (membershipKey && membershipId && nodeConnected && nick)
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textInput.disabled = !readyToSend;
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sendButton.disabled = !readyToSend;
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setNickButton.disabled = !nicknameInput.value;
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}
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generateCredsButton.onclick = () => {
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membershipKey = rlnInstance.generateMembershipKey()
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updateFields()
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}
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membershipIdInput.onchange = updateFields;
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identityKeyInput.onchange = updateFields;
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commitmentKeyInput.onchange = updateFields;
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importButton.onclick = () => {
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const idKey = utils.hexToBytes(identityKeyInput.value)
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const idCommitment = utils.hexToBytes(commitmentKeyInput.value)
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membershipKey = new MembershipKey(idKey, idCommitment)
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membershipId = membershipIdInput.value;
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updateFields()
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}
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// Protobuf
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const ProtoChatMessage = new protobuf.Type("ChatMessage")
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.add(new protobuf.Field("timestamp", 1, "uint64"))
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.add(new protobuf.Field("nick", 2, "string"))
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.add(new protobuf.Field("text", 3, "bytes"));
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// Waku
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nicknameInput.onchange = updateFields
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setNickButton.onclick = () => {
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nick = nicknameInput.value;
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updateFields()
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}
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const ContentTopic = "/toy-chat/2/luzhou/proto";
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// const ContentTopic = "/toy-chat/2/huilong/proto"
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const decoder = new DecoderV0(ContentTopic);
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let messages = [];
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const updateMessages = (msgs, div) => {
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div.innerHTML = "<ul>"
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messages.forEach(msg => div.innerHTML += "<li>" + msg + "</li>")
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div.innerHTML += "</ul>"
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}
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const callback = (wakuMessage) => {
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const {timestamp, nick, text} = ProtoChatMessage.decode(wakuMessage.payload)
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const time = new Date();
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time.setTime(Number(timestamp));
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messages.push(`(${nick}) <strong>${utils.bytesToUtf8(text)}</strong> <i>[${time.toString()}]</i>`);
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updateMessages(messages, messagesDiv)
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}
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let node;
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(async () => {
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statusDiv.innerHTML = '<p>Creating Waku node.</p>';
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node = await createLightNode({
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libp2p: {
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peerDiscovery: [
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new PeerDiscoveryStaticPeers(getPredefinedBootstrapNodes("test")),
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],
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},
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});
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statusDiv.innerHTML = '<p>Starting Waku node.</p>';
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await node.start();
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statusDiv.innerHTML = '<p>Waku node started.</p>';
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await waitForRemotePeer(node, ["filter", "lightpush"]);
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statusDiv.innerHTML = '<p>Waku node connected.</p>';
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await node.filter.subscribe([decoder], callback)
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nodeConnected = true;
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updateFields()
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})()
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sendButton.onclick = async () => {
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const text = utils.utf8ToBytes(textInput.value);
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const timestamp = new Date();
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const msg = ProtoChatMessage.create({text, nick, timestamp: timestamp.valueOf()});
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const payload = ProtoChatMessage.encode(msg).finish();
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console.log("Sending message with proof...")
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await node.lightPush.push(encoder, {payload, timestamp});
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console.log("Message sent!")
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textInput.value = null;
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};
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</script>
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</body>
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</html>
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