mirror of
https://git.sr.ht/~emersion/gamja
synced 2024-12-04 21:31:08 -05:00
636 lines
15 KiB
JavaScript
636 lines
15 KiB
JavaScript
var server = {
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name: "server",
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username: null,
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realname: null,
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nick: null,
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pass: null,
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saslPlain: null,
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autojoin: [],
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};
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var ws = null;
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var registered = false;
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var availableCaps = {};
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var enabledCaps = {};
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var buffers = {};
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var activeBuffer = null;
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var serverBuffer = null;
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var bufferListElt = document.querySelector("#buffer-list");
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var bufferElt = document.querySelector("#buffer");
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var composerElt = document.querySelector("#composer");
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var composerInputElt = document.querySelector("#composer input");
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var connectElt = document.querySelector("#connect");
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var connectFormElt = document.querySelector("#connect form");
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function djb2(s) {
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var hash = 5381;
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for (var i = 0; i < s.length; i++) {
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hash = (hash << 5) + hash + s.charCodeAt(i);
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hash = hash >>> 0; // convert to uint32
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}
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return hash;
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}
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function createNickElement(name) {
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var nick = document.createElement("a");
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nick.href = "#";
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nick.className = "nick nick-" + (djb2(name) % 16 + 1);
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nick.innerText = name;
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nick.onclick = function(event) {
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event.preventDefault();
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switchBuffer(createBuffer(name));
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};
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return nick;
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}
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function createMessageElement(msg) {
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var date = new Date();
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var line = document.createElement("div");
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line.className = "logline";
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var timestamp = document.createElement("a");
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timestamp.href = "#";
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timestamp.className = "timestamp";
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timestamp.innerText = date.toLocaleTimeString(undefined, {
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timeStyle: "short",
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hour12: false,
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});
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timestamp.onclick = function(event) {
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event.preventDefault();
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};
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line.appendChild(timestamp);
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line.appendChild(document.createTextNode(" "));
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switch (msg.command) {
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case "NOTICE":
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case "PRIVMSG":
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var text = msg.params[1];
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var actionPrefix = "\001ACTION ";
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if (text.startsWith(actionPrefix) && text.endsWith("\001")) {
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var action = text.slice(actionPrefix.length, -1);
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line.className += " me-tell";
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line.appendChild(document.createTextNode("* "));
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode(" " + action));
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} else {
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line.className += " talk";
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line.appendChild(document.createTextNode("<"));
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode("> "));
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line.appendChild(document.createTextNode(text));
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}
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break;
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case "JOIN":
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode(" has joined"));
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break;
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case "PART":
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode(" has left"));
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break;
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case "NICK":
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var newNick = msg.params[0];
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode(" is now known as "));
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line.appendChild(createNickElement(newNick));
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break;
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case "TOPIC":
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line.appendChild(createNickElement(msg.prefix.name));
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line.appendChild(document.createTextNode(" changed the topic to: " + msg.params[1]));
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break;
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default:
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line.appendChild(document.createTextNode(" " + msg.command + " " + msg.params.join(" ")));
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}
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return line;
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}
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function createBuffer(name) {
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if (buffers[name]) {
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return buffers[name];
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}
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var a = document.createElement("a");
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a.href = "#";
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a.onclick = function(event) {
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event.preventDefault();
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switchBuffer(name);
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};
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a.innerText = name;
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var li = document.createElement("li");
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li.appendChild(a);
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var buf = {
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name: name,
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li: li,
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readOnly: false,
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topic: null,
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members: {},
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messages: [],
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addMessage: function(msg) {
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buf.messages.push(msg);
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if (activeBuffer === buf) {
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bufferElt.appendChild(createMessageElement(msg));
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}
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},
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};
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buffers[name] = buf;
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bufferListElt.appendChild(li);
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return buf;
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}
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function switchBuffer(buf) {
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if (typeof buf == "string") {
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buf = buffers[buf];
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}
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if (activeBuffer && buf === activeBuffer) {
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return;
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}
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if (activeBuffer) {
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activeBuffer.li.classList.remove("active");
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}
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activeBuffer = buf;
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if (!buf) {
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return;
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}
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buf.li.classList.add("active");
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bufferElt.innerHTML = "";
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for (var msg of buf.messages) {
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bufferElt.appendChild(createMessageElement(msg));
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}
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composerElt.classList.toggle("read-only", buf.readOnly);
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if (!buf.readOnly) {
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composerInputElt.focus();
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}
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}
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function showConnectForm() {
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setConnectFormDisabled(false);
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connectElt.style.display = "block";
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}
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function addAvailableCaps(s) {
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var l = s.split(" ");
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l.forEach(function(s) {
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var parts = s.split("=");
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var k = parts[0];
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var v = "";
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if (parts.length > 1) {
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v = parts[1];
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}
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availableCaps[k] = v;
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});
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}
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function handleCap(msg) {
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var subCmd = msg.params[1];
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var args = msg.params.slice(2);
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switch (subCmd) {
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case "LS":
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addAvailableCaps(args[args.length - 1]);
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if (args[0] != "*") {
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console.log("Available server caps:", availableCaps);
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var reqCaps = [];
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var saslCap = availableCaps["sasl"];
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var supportsSaslPlain = (saslCap !== undefined);
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if (saslCap.length > 0) {
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supportsSaslPlain = saslCap.split(",").includes("PLAIN");
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}
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var capEnd = true;
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if (server.saslPlain && supportsSaslPlain) {
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// CAP END is deferred after authentication finishes
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reqCaps.push("sasl");
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capEnd = false;
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}
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if (availableCaps["message-tags"] !== undefined) {
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reqCaps.push("message-tags");
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}
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if (reqCaps.length > 0) {
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sendMessage({ command: "CAP", params: ["REQ", reqCaps.join(" ")] });
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}
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if (!registered && capEnd) {
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sendMessage({ command: "CAP", params: ["END"] });
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}
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}
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break;
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case "NEW":
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addAvailableCaps(args[0]);
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console.log("Server added available caps:", args[0]);
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break;
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case "DEL":
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args[0].split(" ").forEach(function(cap) {
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delete availableCaps[cap];
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delete enabledCaps[cap];
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});
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console.log("Server removed available caps:", args[0]);
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break;
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case "ACK":
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console.log("Server ack'ed caps:", args[0]);
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args[0].split(" ").forEach(function(cap) {
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enabledCaps[cap] = true;
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if (cap == "sasl" && server.saslPlain) {
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console.log("Starting SASL PLAIN authentication");
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sendMessage({ command: "AUTHENTICATE", params: ["PLAIN"] });
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}
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});
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break;
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case "NAK":
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console.log("Server nak'ed caps:", args[0]);
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if (!registered) {
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sendMessage({ command: "CAP", params: ["END"] });
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}
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break;
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}
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}
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function handleAuthenticate(msg) {
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var challengeStr = msg.params[0];
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// For now only PLAIN is supported
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if (challengeStr != "+") {
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console.error("Expected an empty challenge, got:", challengeStr);
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sendMessage({ command: "AUTHENTICATE", params: ["*"] });
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return;
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}
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var respStr = btoa("\0" + server.saslPlain.username + "\0" + server.saslPlain.password);
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sendMessage({ command: "AUTHENTICATE", params: [respStr] });
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}
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function connect() {
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try {
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ws = new WebSocket(server.url);
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} catch (err) {
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console.error(err);
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showConnectForm();
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return;
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}
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ws.onopen = function() {
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console.log("Connection opened");
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sendMessage({ command: "CAP", params: ["LS", "302"] });
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if (server.pass) {
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sendMessage({ command: "PASS", params: [server.pass] });
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}
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sendMessage({ command: "NICK", params: [server.nick] });
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sendMessage({
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command: "USER",
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params: [server.username, "0", "*", server.realname],
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});
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};
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ws.onmessage = function(event) {
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var msg = parseMessage(event.data);
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console.log("Received:", msg);
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switch (msg.command) {
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case RPL_WELCOME:
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if (server.saslPlain && availableCaps["sasl"] === undefined) {
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console.error("Server doesn't support SASL PLAIN");
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disconnect();
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return;
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}
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console.log("Registration complete");
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registered = true;
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connectElt.style.display = "none";
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if (server.autojoin.length > 0) {
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sendMessage({
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command: "JOIN",
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params: [server.autojoin.join(",")],
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});
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}
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break;
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case RPL_TOPIC:
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var channel = msg.params[1];
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var topic = msg.params[2];
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var buf = buffers[channel];
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if (!buf) {
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break;
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}
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buf.topic = topic;
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break;
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case RPL_NAMREPLY:
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var channel = msg.params[2];
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var members = msg.params.slice(3);
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var buf = buffers[channel];
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if (!buf) {
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break;
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}
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members.forEach(function(s) {
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var member = parseMembership(s);
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buf.members[member.nick] = member.prefix;
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});
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break;
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case RPL_ENDOFNAMES:
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break;
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case ERR_PASSWDMISMATCH:
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console.error("Password mismatch");
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disconnect();
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break;
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case "CAP":
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handleCap(msg);
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break;
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case "AUTHENTICATE":
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handleAuthenticate(msg);
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break;
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case RPL_LOGGEDIN:
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console.log("Logged in");
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break;
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case RPL_LOGGEDOUT:
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console.log("Logged out");
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break;
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case RPL_SASLSUCCESS:
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console.log("SASL authentication success");
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if (!registered) {
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sendMessage({ command: "CAP", params: ["END"] });
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}
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break;
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case ERR_NICKLOCKED:
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case ERR_SASLFAIL:
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case ERR_SASLTOOLONG:
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case ERR_SASLABORTED:
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case ERR_SASLALREADY:
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console.error("SASL error:", msg);
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disconnect();
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break;
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case "NOTICE":
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case "PRIVMSG":
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var target = msg.params[0];
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if (target == server.nick) {
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target = msg.prefix.name;
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}
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var buf;
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if (target == "*") {
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buf = serverBuffer;
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} else {
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buf = createBuffer(target);
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}
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buf.addMessage(msg);
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break;
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case "JOIN":
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var channel = msg.params[0];
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var buf = createBuffer(channel);
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buf.members[msg.prefix.name] = null;
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if (msg.prefix.name != server.nick) {
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buf.addMessage(msg);
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}
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if (channel == server.autojoin[0]) {
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// TODO: only switch once right after connect
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switchBuffer(buf);
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}
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break;
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case "PART":
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var channel = msg.params[0];
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var buf = createBuffer(channel);
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delete buf.members[msg.prefix.name];
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buf.addMessage(msg);
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break;
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case "NICK":
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var newNick = msg.params[0];
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if (msg.prefix.name == server.nick) {
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server.nick = newNick;
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}
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for (var name in buffers) {
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var buf = buffers[name];
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if (buf.members[msg.prefix.name] !== undefined) {
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buf.members[newNick] = buf.members[msg.prefix.name];
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delete buf.members[msg.prefix.name];
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buf.addMessage(msg);
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}
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}
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break;
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case "TOPIC":
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var channel = msg.params[0];
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var topic = msg.params[1];
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var buf = buffers[channel];
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if (!buf) {
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break;
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}
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buf.topic = topic;
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buf.addMessage(msg);
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break;
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default:
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serverBuffer.addMessage(msg);
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}
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};
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ws.onclose = function() {
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console.log("Connection closed");
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showConnectForm();
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};
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ws.onerror = function() {
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console.error("Connection error");
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};
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serverBuffer = createBuffer(server.name);
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serverBuffer.readOnly = true;
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switchBuffer(serverBuffer);
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}
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function disconnect() {
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ws.close(1000);
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registered = false;
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}
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function sendMessage(msg) {
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ws.send(formatMessage(msg));
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console.log("Sent:", msg);
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}
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function executeCommand(s) {
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var parts = s.split(" ");
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var cmd = parts[0].toLowerCase().slice(1);
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var args = parts.slice(1);
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switch (cmd) {
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case "quit":
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if (localStorage) {
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localStorage.removeItem("server");
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}
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disconnect();
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break;
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case "join":
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var channel = args[0];
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if (!channel) {
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console.error("Missing channel name");
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return;
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}
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sendMessage({ command: "JOIN", params: [channel] });
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break;
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case "part":
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// TODO: part reason
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if (!activeBuffer || activeBuffer.readOnly) {
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console.error("Not in a channel");
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return;
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}
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var channel = activeBuffer.name;
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sendMessage({ command: "PART", params: [channel] });
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break;
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case "msg":
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var target = args[0];
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var text = args.slice(1).join(" ");
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sendMessage({ command: "PRIVMSG", params: [target, text] });
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break;
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case "nick":
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var newNick = args[0];
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sendMessage({ command: "NICK", params: [newNick] });
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break;
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default:
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console.error("Unknwon command '" + cmd + "'");
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}
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}
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composerElt.onsubmit = function(event) {
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event.preventDefault();
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var text = composerInputElt.value;
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composerInputElt.value = "";
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if (!text) {
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return;
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}
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if (text.startsWith("//")) {
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text = text.slice(1);
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} else if (text.startsWith("/")) {
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executeCommand(text);
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return;
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}
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if (!activeBuffer || activeBuffer.readOnly) {
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return;
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}
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var target = activeBuffer.name;
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var msg = { command: "PRIVMSG", params: [target, text] };
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sendMessage(msg);
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msg.prefix = { name: server.nick };
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activeBuffer.addMessage(msg);
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};
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function setConnectFormDisabled(disabled) {
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connectElt.querySelectorAll("input, button").forEach(function(elt) {
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elt.disabled = disabled;
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});
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}
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function parseQueryString() {
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var query = window.location.search.substring(1);
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var params = {};
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query.split('&').forEach(function(s) {
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if (!s) {
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return;
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}
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var pair = s.split('=');
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params[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1] || "");
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});
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return params;
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}
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connectFormElt.onsubmit = function(event) {
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event.preventDefault();
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setConnectFormDisabled(true);
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server.url = connectFormElt.elements.url.value;
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server.nick = connectFormElt.elements.nick.value;
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server.username = connectFormElt.elements.username.value || server.nick;
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server.realname = connectFormElt.elements.realname.value || server.nick;
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server.pass = connectFormElt.elements.pass.value;
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server.saslPlain = null;
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if (connectFormElt.elements.password.value) {
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server.saslPlain = {
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username: server.username,
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password: connectFormElt.elements.password.value,
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};
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}
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server.autojoin = [];
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connectFormElt.elements.autojoin.value.split(",").forEach(function(ch) {
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|
ch = ch.trim();
|
|
if (!ch) {
|
|
return;
|
|
}
|
|
server.autojoin.push(ch);
|
|
});
|
|
|
|
if (localStorage) {
|
|
if (connectFormElt.elements["remember-me"].checked) {
|
|
localStorage.setItem("server", JSON.stringify(server));
|
|
} else {
|
|
localStorage.removeItem("server");
|
|
}
|
|
}
|
|
|
|
connect();
|
|
};
|
|
|
|
window.onkeydown = function(event) {
|
|
if (activeBuffer && activeBuffer.readOnly && event.key == "/" && document.activeElement != composerInputElt) {
|
|
// Allow typing commands even in read-only buffers
|
|
composerElt.classList.remove("read-only");
|
|
composerInputElt.focus();
|
|
composerInputElt.value = "";
|
|
}
|
|
};
|
|
|
|
if (localStorage && localStorage.getItem("server")) {
|
|
server = JSON.parse(localStorage.getItem("server"));
|
|
connectFormElt.elements.url.value = server.url;
|
|
connectFormElt.elements.nick.value = server.nick;
|
|
if (server.username != server.nick) {
|
|
connectFormElt.elements.username.value = server.username;
|
|
}
|
|
if (server.realname != server.nick) {
|
|
connectFormElt.elements.realname.value = server.realname;
|
|
}
|
|
connectFormElt.elements["remember-me"].checked = true;
|
|
setConnectFormDisabled(true);
|
|
connect();
|
|
} else {
|
|
var params = parseQueryString();
|
|
|
|
if (params.server) {
|
|
connectFormElt.elements.url.value = params.server;
|
|
} else if (!connectFormElt.elements.url.value) {
|
|
var host = window.location.host || "localhost:8080";
|
|
var proto = "wss:";
|
|
if (window.location.protocol != "https:") {
|
|
proto = "ws:";
|
|
}
|
|
connectFormElt.elements.url.value = proto + "//" + host + "/socket";
|
|
}
|
|
|
|
if (params.channels) {
|
|
connectFormElt.elements.autojoin.value = params.channels;
|
|
}
|
|
}
|