vybe/client/chat.js

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5.5 KiB
JavaScript
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function rand() {
let str = "";
const lookups =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".split("");
while (str.length < 16) {
const n = Math.random() * lookups.length;
str += lookups[Math.floor(n)];
}
return str;
}
async function auth() {
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let session = rand();
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const sig = await openpgp.sign({
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message: new openpgp.CleartextMessage("vybe_auth " + session, ""),
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signingKeys: window.keys.priv,
});
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window.session = session;
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window.socket.emit("authenticate", { name: window.name, message: sig });
}
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async function register(e) {
e.preventDefault();
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const name = document.getElementById("name").value;
if (!name) return;
const keys = await openpgp.generateKey({
userIDs: [{ name }],
});
const priv = await openpgp.readKey({ armoredKey: keys.privateKey });
const pub = await openpgp.readKey({ armoredKey: keys.publicKey });
window.keys = { priv, pub };
localStorage.setItem("keys", JSON.stringify(keys));
localStorage.setItem("name", name);
window.name = name;
window.socket.emit("create_user", { name, pubkey: keys.publicKey });
}
async function message(e) {
e.preventDefault();
const msg = document.getElementById("msg").value;
if (!msg) return;
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window.socket.emit("send_message", {
name: window.name,
message: msg,
thread: window.currentThreadId,
});
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document.getElementById("msg").value = "";
const el = document.createElement("div");
el.classList.add("message");
el.innerHTML = `<strong>${window.name}: </strong>${msg}`;
document.getElementById("messages").appendChild(el);
}
function swap() {
document.getElementById("register").classList.add("hidden");
document.getElementById("chat").classList.remove("hidden");
}
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function startThreadPicker() {
document.getElementById("chat").classList.add("hidden");
document.getElementById("threads").classList.remove("hidden");
window.socket.emit("list_threads");
}
function chooseThread(thread) {
window.currentThreadId = thread.id;
window.earliestMessage = null;
document.getElementById("loadmore").classList.remove("hidden");
document.getElementById("chat").classList.remove("hidden");
document.getElementById("messages").innerHTML = "";
document.getElementById("threadname").innerHTML = thread.name;
document.getElementById("threads").classList.add("hidden");
}
function createThread(e) {
e.preventDefault();
window.socket.emit("create_thread", {
name: document.getElementById("newthreadname").value,
});
}
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async function loadKeys(keys) {
const priv = await openpgp.readKey({ armoredKey: keys.privateKey });
const pub = await openpgp.readKey({ armoredKey: keys.publicKey });
window.keys = { priv, pub };
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await auth();
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}
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async function loadMessages() {
window.socket.emit(
"get_history",
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window.earliestMessage
? { before: window.earliestMessage, thread: window.currentThreadId }
: { thread: window.currentThreadId }
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);
}
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window.onload = () => {
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window.currentThreadId = 1;
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window.socket = io();
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window.socket.on("create_user", auth);
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window.socket.on("new_message", (msg) => {
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if (msg.thread !== window.currentThreadId) return;
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const el = document.createElement("div");
el.classList.add("message");
el.innerHTML = `<strong>${msg.name}: </strong>${msg.message}`;
document.getElementById("messages").appendChild(el);
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if (!window.earliestMessage) window.earliestMessage = msg.id;
});
window.socket.on("send_message", (msg) => {
if (!window.earliestMessage) window.earliestMessage = msg.id;
});
window.socket.on("get_history", (msg) => {
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if (msg.messages.length > 0) {
window.earliestMessage = msg.messages[msg.messages.length - 1].id;
for (let message of msg.messages) {
const el = document.createElement("div");
el.classList.add("message");
el.innerHTML = `<strong>${message.name}: </strong>${message.message}`;
document.getElementById("messages").prepend(el);
}
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}
if (!msg.more) document.getElementById("loadmore").classList.add("hidden");
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});
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window.socket.on("authenticate", (msg) => {
if (msg.success) swap();
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let emitter = window.socket.emit;
window.socket.emit = (type, data) => {
if (data)
return emitter.call(window.socket, type, {
...data,
__session: window.session,
});
else return emitter.call(window.socket, type);
};
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});
window.socket.on("list_threads", (msg) => {
document.getElementById("threadlist").innerHTML = "";
for (let thread of msg.threads) {
const el = document.createElement("div");
el.classList.add("thread");
el.innerHTML = thread.name;
const btn = document.createElement("button");
btn.innerHTML = "choose";
btn.onclick = () => chooseThread(thread);
el.appendChild(btn);
document.getElementById("threadlist").appendChild(el);
}
});
window.socket.on("create_thread", (msg) => {
chooseThread({
name: document.getElementById("newthreadname").value,
id: msg.id,
});
document.getElementById("newthreadname").value = "";
});
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const keys = localStorage.getItem("keys");
if (keys) {
window.name = localStorage.getItem("name");
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loadKeys(JSON.parse(keys)).then(() => {});
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}
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document.getElementById("registerform").onsubmit = register;
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document.getElementById("msginput").onsubmit = message;
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document.getElementById("loadmore").onclick = loadMessages;
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document.getElementById("change").onclick = startThreadPicker;
document.getElementById("createthread").onsubmit = createThread;
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};