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stuffy

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This commit is contained in:
Kim Ravn Hansen
2025-09-14 13:04:48 +02:00
parent 8c196bb6a1
commit ed91a7f2f7
43 changed files with 2279 additions and 1727 deletions
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820
server/public/client.js
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@@ -1,505 +1,447 @@
import { crackdown } from "./crackdown.js";
const MsgContext.REPLY = "R";
const QUIT = "QUIT";
const HELP = "HELP";
const COLON = ":";
const helpRegex = /^:help(?:\s+(.*))?$/;
const colonRegex = /^:([a-z0-9_]+)(?:\s+(.*))?$/;
class MUDClient {
//
// Constructor
constructor() {
/** @type {WebSocket} Our WebSocket */
this.websocket = null;
//
// Constructor
constructor() {
/** @type {WebSocket} Our WebSocket */
this.websocket = null;
/** @type {boolean} Are we in development mode (decided by the server);
/** @type {boolean} Are we in development mode (decided by the server); */
this.dev = false;
/** @type {string|null} The message type of the last thing we were asked. */
this.replyType = null;
this.promptOptions = {};
this.shouldReply = false;
/** @type {string|null} The #tag of the last thing we were asked. */
this.replyTag = null;
/** @type {HTMLElement} The output "monitor" */
this.output = document.getElementById("output");
/** @type {HTMLElement} The output "monitor" */
this.output = document.getElementById("output");
/** @type {HTMLElement} The input element */
this.input = document.getElementById("input");
/** @type {HTMLElement} The input element */
this.input = document.getElementById("input");
/** @type {HTMLElement} Status indicator */
this.status = document.getElementById("status");
/** @type {HTMLElement} The send/submit button */
this.sendButton = document.getElementById("send");
// Passwords are crypted and salted before being sent to the server
// This means that if ANY of these three parameters below change,
// The server can no longer accept the passwords.
/** @type {string} Hashing method to use for client-side password hashing */
this.digest = "SHA-256";
/** @type {HTMLElement} Status indicator */
this.status = document.getElementById("status");
/** @type {string} Salt string to use for client-side password hashing */
this.salt = "No salt, no shorts, no service";
// Passwords are crypted and salted before being sent to the server
// This means that if ANY of these three parameters below change,
// The server can no longer accept the passwords.
/** @type {string} Hashing method to use for client-side password hashing */
this.digest = "SHA-256";
/** @type {string} Number of times the hashing should be done */
this.rounds = 1000;
/** @type {string} Salt string to use for client-side password hashing */
this.salt = "No salt, no shorts, no service";
/** @type {string} the username also salts the password, so the username must never change. */
this.username = "";
/** @type {string} Number of times the hashing should be done */
this.rounds = 1000;
/** @type {string} the username also salts the password, so the username must never change. */
this.username = "";
this.setupEventListeners();
this.connect();
}
/** @param {string} password the password to be hashed */
async hashPassword(password) {
const encoder = new TextEncoder();
let data = encoder.encode(password + this.salt);
for (let i = 0; i < this.rounds; i++) {
const hashBuffer = await crypto.subtle.digest(this.digest, data);
data = new Uint8Array(hashBuffer); // feed hash back in
this.setupEventListeners();
this.connect();
}
// Convert final hash to hex
const rawHash = Array.from(data)
.map((b) => b.toString(16).padStart(2, "0"))
.join("");
/** @param {string} password the password to be hashed */
async hashPassword(password) {
const encoder = new TextEncoder();
let data = encoder.encode(password + this.salt);
return `KimsKrappyKryptoV1:${this.salt}:${this.rounds}:${this.digest}:${rawHash}`;
}
for (let i = 0; i < this.rounds; i++) {
const hashBuffer = await crypto.subtle.digest(this.digest, data);
data = new Uint8Array(hashBuffer); // feed hash back in
}
connect() {
const protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
const wsUrl = `${protocol}//${window.location.host}`;
// Convert final hash to hex
const rawHash = Array.from(data)
.map((b) => b.toString(16).padStart(2, "0"))
.join("");
this.updateStatus("Connecting...", "connecting");
return `KimsKrappyKryptoV1:${this.salt}:${this.rounds}:${this.digest}:${rawHash}`;
}
try {
this.websocket = new WebSocket(wsUrl);
connect() {
const protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
const wsUrl = `${protocol}//${window.location.host}`;
this.websocket.onopen = () => {
this.updateStatus("Connected", "connected");
this.input.disabled = false;
this.sendButton.disabled = false;
this.input.focus();
this.output.innerHTML = "";
};
this.updateStatus("Connecting...", "connecting");
this.websocket.onmessage = (event) => {
console.debug(event);
const data = JSON.parse(event.data);
this.onMessage(data);
this.input.focus();
};
try {
this.websocket = new WebSocket(wsUrl);
this.websocket.onclose = () => {
this.updateStatus("Disconnected", "disconnected");
this.input.disabled = true;
this.sendButton.disabled = true;
this.websocket.onopen = () => {
this.updateStatus("Connected", "connected");
this.input.disabled = false;
this.input.focus();
this.output.innerHTML = "";
};
// Attempt to reconnect after 3 seconds
setTimeout(() => this.connect(), 3000);
};
this.websocket.onmessage = (event) => {
console.debug(event);
const data = JSON.parse(event.data);
this.onMessageReceived(data);
this.input.focus();
};
this.websocket.onerror = (error) => {
this.updateStatus("Connection Error", "error");
this.writeToOutput("Connection error occurred. Retrying...", {
class: "error",
this.websocket.onclose = () => {
this.updateStatus("Disconnected", "disconnected");
this.input.disabled = true;
// Attempt to reconnect after 3 seconds
setTimeout(() => this.connect(), 3000);
};
this.websocket.onerror = (error) => {
this.updateStatus("Connection Error", "error");
this.writeToOutput("Connection error occurred. Retrying...", { class: "error" });
};
} catch (error) {
console.error(error);
this.updateStatus("Connection Failed", "error");
setTimeout(() => this.connect(), 3000);
}
}
setupEventListeners() {
document.addEventListener("keypress", (e) => {
if (e.key.length === 1 && !e.ctrlKey && !e.altKey && !e.metaKey) {
this.input.focus();
}
});
this.input.addEventListener("keypress", (e) => {
if (e.key === "Enter") {
this.onUserCommand();
}
});
};
} catch (error) {
console.error(error);
this.updateStatus("Connection Failed", "error");
setTimeout(() => this.connect(), 3000);
}
}
setupEventListeners() {
document.addEventListener("keypress", (e) => {
if (e.key.length === 1 && !e.ctrlKey && !e.altKey && !e.metaKey) {
this.input.focus();
}
});
this.input.addEventListener("keypress", (e) => {
if (e.key === "Enter") {
this.onUserCommand();
}
});
/**
* Send a json-encoded message to the server via websocket.
*
* @param {messageType} string
* @param {...any} rest
*/
send(messageType, ...args) {
console.log("sending", messageType, args);
this.sendButton.addEventListener("click", () => {
this.onUserCommand();
});
// Command history
this.commandHistory = [];
this.historyIndex = -1;
this.input.addEventListener("keydown", (e) => {
if (e.key === "ArrowUp") {
e.preventDefault();
if (this.historyIndex < this.commandHistory.length - 1) {
this.historyIndex++;
this.input.value =
this.commandHistory[
this.commandHistory.length - 1 - this.historyIndex
];
if (args.length === 0) {
this.websocket.send(JSON.stringify([messageType]));
return;
}
} else if (e.key === "ArrowDown") {
e.preventDefault();
if (this.historyIndex > 0) {
this.historyIndex--;
this.input.value =
this.commandHistory[
this.commandHistory.length - 1 - this.historyIndex
];
} else if (this.historyIndex === 0) {
this.historyIndex = -1;
this.input.value = "";
this.websocket.send(JSON.stringify([messageType, ...args]));
}
/**
* User has entered a command
*/
async onUserCommand() {
/** @type {string} */
const inputText = this.input.value.trim(); // Trim user's input.
this.input.value = ""; // Reset the input text field
this.input.type = "text"; // Make sure it reverts to being a text input (as opposed to being a password input)
// -- This is a sneaky command that should not be in production?
//
// In reality we want to use :clear, nor /clear
// :clear would be sent to the server, and we ask if it's okay
// to clear the screen right now, and only on a positive answer would we
// allow the screen to be cleared. Maybe.....
if (inputText === "/clear") {
this.output.innerHTML = "";
this.input.value = "";
return;
}
}
});
}
/**
* Send a json-encoded message to the server via websocket.
*
* @param {messageType} string
* @param {...any} rest
*/
send(messageType, ...args) {
if (args.length === 0) {
this.websocket.send(JSON.stringify([messageType]));
return;
//
// Don't allow sending messages (for now)
// Later on, prompts may give us the option to simply "press enter";
if (!inputText) {
console.debug("Cannot send empty message - YET");
return;
}
//
// Can't send a message without a websocket
if (!(this.websocket && this.websocket.readyState === WebSocket.OPEN)) {
return;
}
//
// The quit command has its own message type
if (inputText === ":quit") {
this.send(QUIT);
this.writeToOutput("> " + inputText, { class: "input" });
return;
}
// _ _
// _ | |__ ___| |_ __
// (_) | '_ \ / _ \ | '_ \
// _ | | | | __/ | |_) |
// (_) |_| |_|\___|_| .__/
// |_|
// ------------------------
//
// The quit command has its own message type
let help = helpRegex.exec(inputText);
if (help) {
console.log("here");
help[1] ? this.send(HELP, help[1].trim()) : this.send(HELP);
this.writeToOutput("> " + inputText, { class: "input" });
return;
}
// _
// _ ___ ___ _ __ ___ _ __ ___ __ _ _ __ __| |
// (_) / __/ _ \| '_ ` _ \| '_ ` _ \ / _` | '_ \ / _` |
// _ | (_| (_) | | | | | | | | | | | (_| | | | | (_| |
// (_) \___\___/|_| |_| |_|_| |_| |_|\__,_|_| |_|\__,_|
//------------------------------------------------------
let colonCommand = colonRegex.exec(inputText);
if (colonCommand) {
this.send(COLON, colonCommand[1], colonCommand[2]);
this.writeToOutput("> " + inputText, { class: "input" });
return;
}
//
// The server doesn't want any input from us, so we just ignore this input
if (!this.shouldReply) {
// the server is not ready for data!
return;
}
// _
// _ __ ___ _ __ | |_ _
// | '__/ _ \ '_ \| | | | |
// | | | __/ |_) | | |_| |
// |_| \___| .__/|_|\__, |
// |_| |___/
//-------------------------
// We handle replies below
//-------------------------
// The server wants a password, let's hash it before sending it.
if (this.promptOptions.password) {
inputText = await this.hashPassword(inputText);
}
//
// The server wants a username, let's save it in case we need it.
if (this.promptOptions.username) {
this.username = inputText;
}
this.send(REPLY, inputText);
this.shouldReply = false;
this.promptOptions = {};
//
// We add our own command to the output stream so the
// player can see what they typed.
this.writeToOutput("> " + inputText, { class: "input" });
return;
}
this.websocket.send(JSON.stringify([messageType, ...args]));
}
//
// Add a command to history so we can go back to previous commands with arrow keys.
_addCommandToHistory(command) {
// ___ __ __
// / _ \ _ __ | \/ | ___ ___ ___ __ _ __ _ ___
// | | | | '_ \| |\/| |/ _ \/ __/ __|/ _` |/ _` |/ _ \
// | |_| | | | | | | | __/\__ \__ \ (_| | (_| | __/
// \___/|_| |_|_| |_|\___||___/___/\__,_|\__, |\___|
//
// we do not add usernames or passwords to history.
if (this.replyType === "password" || this.replyType === "username") {
return;
/** @param {any[]} data*/
onMessageReceived(data) {
if (this.dev) {
console.debug(data);
}
const messageType = data.shift();
// prompt
if (messageType === "P") {
return this.handlePromptMessage(data);
}
// text message
if (messageType === "T") {
return this.handleTextMessages(data);
}
// error
if (messageType === "E") {
return this.handleErrorMessage(data);
}
// fatal error / calamity
if (messageType === "CALAMITY") {
return this.handleCalamityMessage(data);
}
// system message
if (messageType === "_") {
return this.handleSystemMessages(data);
}
// debug
if (messageType === "dbg") {
return this.handleDebugMessages(data);
}
if (this.dev) {
this.writeToOutput(`unknown message type: ${messageType}: ${JSON.stringify(data)}`, {
class: "debug",
verbatim: true,
});
}
console.debug("unknown message type", data);
}
//
// Adding empty commands makes no sense.
// Why would the user navigate back through their history to
// find and empty command when they can just press enter.
if (command === "") {
return;
// "m" => normal/standard message to be displayed to the user
handleTextMessages(data) {
const options = { ...data[1] }; // coerce options into an object.
// normal text message to be shown to the player
this.writeToOutput(data[0], options);
return;
}
//
// Add to command our history
// But not if the command was a password.
this.historyIndex = -1;
//
// We do not add the same commands many times in a row.
if (this.commandHistory[this.commandHistory.length - 1] === command) {
return;
// Debug messages let the server send data to be displayed on the player's screen
// and also logged to the players browser's log.
handleDebugMessages(data) {
if (!this.dev) {
return; // debug messages are thrown away if we're not in dev mode.
}
this.writeToOutput(data, { class: "debug", verbatim: true });
console.debug("DBG", data);
}
//
// Add the command to the history stack
this.commandHistory.push(command);
if (this.commandHistory.length > 50) {
this.commandHistory.shift();
}
}
// "_" => system messages, not to be displayed
handleSystemMessages(data) {
if (data.length < 2) {
console.debug("malformed system message", data);
return;
}
/**
* User has entered a command
*/
onUserCommand() {
//
// Trim user's input.
const command = this.input.value.trim();
this.input.value = "";
this.input.type = "text";
console.debug("Incoming system message", data);
this._addCommandToHistory(command);
/** @type {string} */
const messageType = data.shift();
// -- This is a sneaky command that should not be in production?
//
// In reality we want to use :clear, nor /clear
// :clear would be sent to the server, and we ask if it's okay
// to clear the screen right now, and only on a positive answer would we
// allow the screen to be cleared. Maybe.....
if (command === "/clear") {
this.output.innerHTML = "";
this.input.value = "";
return;
switch (messageType) {
case "username":
this.username = data[0];
break;
case "dev":
// This is a message that tells us that the server is in
// "dev" mode, and that we should do the same.
this.dev = data[0];
this.status.textContent = "[DEV] " + this.status.textContent;
break;
case "salt":
this.salt = data[0];
console.debug("updating crypto salt", data[0]);
break;
default:
console.debug("unknown system message", messageType, data);
}
// If we're in dev mode, we should output all system messages (in a shaded/faint fashion).
if (this.dev) {
this.writeToOutput(`system message: ${messageType} = ${JSON.stringify(data)}`, { class: "debug" });
}
return;
}
//
// Don't allow sending messages (for now)
// Later on, prompts may give us the option to simply "press enter";
if (!command) {
console.debug("Cannot send empty message - YET");
return;
// "calamity" => lethal error. Close connection.
// Consider hard refresh of page to reset all variables
handleCalamityMessage(data) {
//
// We assume that calamity errors are pre-formatted, and we do not allow
// any of our own formatting-shenanigans to interfere with the error message
const options = { ...{ class: "error", verbatim: true }, ...data[1] };
this.writeToOutput(data[0], options);
return;
}
//
// Can't send a message without a websocket
if (!(this.websocket && this.websocket.readyState === WebSocket.OPEN)) {
return;
// "e" => non-lethal errors
handleErrorMessage(data) {
const options = { ...{ class: "error" }, ...data[1] };
this.writeToOutput(data[0], options);
return;
}
//
// The server asked us for a password, so we send it.
// But we hash it first, so we don't send our stuff
// in the clear.
if (this.replyType === "password") {
this.hashPassword(command).then((pwHash) => {
this.send("reply", "password", pwHash, this.replyTag);
this.replyType = null;
this.replyTag = null;
});
return;
// The prompt is the most important message type,
// it prompts us send a message back. We should not
// send messages back to the server without being
// prompted.
// In fact, we should ALWAYS be in a state of just-having-been-prompted.
handlePromptMessage(data) {
let [promptText, options = {}] = data;
this.shouldReply = true;
this.promptOptions = { ...{ class: "prompt" }, ...options };
//
this.writeToOutput(promptText, this.promptOptions);
//
// The server has asked for a password, so we set the
// input type to password for safety reasons.
if (options.password) {
this.input.type = "password";
}
return;
}
//
// When the player enters their username during the auth-phase,
// keep the username in the pocket for later.
if (this.replyType === "username") {
this.username = command;
/**
* Add output to the text.
* @param {string} text
* @param {object} options
*/
writeToOutput(text, options = {}) {
// tweak the data-formatting so we can iterate and create multiple elements
const lines = Array.isArray(text) ? text : [text];
for (const line of lines) {
const element = document.createElement("div");
if (options.verbatim) {
element.textContent = line;
element.className = "verbatim";
} else {
element.innerHTML = crackdown(line);
}
this.output.appendChild(element);
this.output.scrollTop = this.output.scrollHeight;
}
}
//
// We add our own command to the output stream so the
// player can see what they typed.
this.writeToOutput("> " + command, { class: "input" });
//
// Handle certain-commands differently.
const specialCommands = { ":quit": "quit", ":help": "help" };
if (specialCommands[command]) {
this.send(specialCommands[command]);
return;
/**
* Update the status banner.
*
* @param {string} message
* @param {string} className
*/
updateStatus(message, className) {
this.status.textContent = this.dev ? `[DEV] Status: ${message}` : `Status: ${message}`;
this.status.className = className;
}
//
// Handle replies
// We want to be in a place where ALL messages are replies.
// The game loop should always ask you for your next command,
// even if it does so silently
if (this.replyType) {
//--------------------------------------------------
// The server asked the player a question,
// so we send the answer the way the server wants.
//--------------------------------------------------
this.send("reply", this.replyType, command, this.replyTag);
this.replyType = null;
this.replyTag = null;
return;
}
//
//-----------------------------------------------------
// The player sends a text-based command to the server
//-----------------------------------------------------
// ___ _ _ _
// |_ _|_ __ ___ _ __ ___ _ __| |_ __ _ _ __ | |_| |
// | || '_ ` _ \| '_ \ / _ \| '__| __/ _` | '_ \| __| |
// | || | | | | | |_) | (_) | | | || (_| | | | | |_|_|
// |___|_| |_| |_| .__/ \___/|_| \__\__,_|_| |_|\__(_)
// |_|
//
// Aside from :help", ":quit", etc. we should not send
// unsolicited messages to the server without being
// prompted to do so.
this.send("c", command);
}
// ___ __ __
// / _ \ _ __ | \/ | ___ ___ ___ __ _ __ _ ___
// | | | | '_ \| |\/| |/ _ \/ __/ __|/ _` |/ _` |/ _ \
// | |_| | | | | | | | __/\__ \__ \ (_| | (_| | __/
// \___/|_| |_|_| |_|\___||___/___/\__,_|\__, |\___|
//
/** @param {any[]} data*/
onMessage(data) {
if (this.dev) {
console.debug(data);
}
const messageType = data.shift();
if (messageType === "dbg") {
return this.handleDebugMessages(data);
}
if (messageType === "prompt") {
return this.handlePromptMessage(data);
}
if (messageType === "e") {
return this.handleErrorMessage(data);
}
if (messageType === "calamity") {
return this.handleCalamityMessage(data);
}
if (messageType === "_") {
return this.handleSystemMessages(data);
}
if (messageType === "m") {
return this.handleTextMessages(data);
}
if (this.dev) {
this.writeToOutput(
`unknown message type: ${messageType}: ${JSON.stringify(data)}`,
"debug",
);
}
console.debug("unknown message type", data);
}
//
// "m" => normal/standard message to be displayed to the user
handleTextMessages(data) {
const options = { ...data[1] }; // coerce options into an object.
// normal text message to be shown to the player
this.writeToOutput(data[0], options);
return;
}
//
// Debug messages let the server send data to be displayed on the player's screen
// and also logged to the players browser's log.
handleDebugMessages(data) {
if (!this.dev) {
return; // debug messages are thrown away if we're not in dev mode.
}
this.writeToOutput(data, { class: "debug", preformatted: true });
console.debug("DBG", data);
}
//
// "_" => system messages, not to be displayed
handleSystemMessages(data) {
if (data.length < 2) {
console.debug("malformed system message", data);
return;
}
console.debug("Incoming system message", data);
/** @type {string} */
const messageType = data.shift();
switch (messageType) {
case "dev":
// This is a message that tells us that the server is in
// "dev" mode, and that we should do the same.
this.dev = data[0];
this.status.textContent = "[DEV] " + this.status.textContent;
break;
case "salt":
this.salt = data[0];
console.debug("updating crypto salt", data[0]);
break;
default:
console.debug("unknown system message", messageType, data);
}
// If we're in dev mode, we should output all system messages (in a shaded/faint fashion).
if (this.dev) {
this.writeToOutput(
`system message: ${messageType} = ${JSON.stringify(data)}`,
{ class: "debug" },
);
}
return;
}
//
// "calamity" => lethal error. Close connection.
// Consider hard refresh of page to reset all variables
handleCalamityMessage(data) {
//
// We assume that calamity errors are pre-formatted, and we do not allow
// any of our own formatting-shenanigans to interfere with the error message
const options = { ...{ class: "error", preformatted: true }, ...data[1] };
this.writeToOutput(data[0], options);
return;
}
//
// "e" => non-lethal errors
handleErrorMessage(data) {
const options = { ...{ class: "error" }, ...data[1] };
this.writeToOutput(data[0], options);
return;
}
//
// The prompt is the most important message type,
// it prompts us send a message back. We should not
// send messages back to the server without being
// prompted.
// In fact, we should ALWAYS be in a state of just-having-been-prompted.
handlePromptMessage(data) {
let [replyType, promptText, replyTag, options = {}] = data;
this.replyType = replyType;
this.replyTag = replyTag;
this.writeToOutput(promptText, { ...{ class: "prompt" }, ...options });
// The server has asked for a password, so we set the
// input type to password for safety reasons.
if (replyType === "password") {
this.input.type = "password";
}
return;
}
/**
* Add output to the text.
* @param {string} text
* @param {object} options
*/
writeToOutput(text, options = {}) {
const el = document.createElement("span");
if (typeof options.class === "string") {
el.className = options.class;
}
// add end of line character "\n" unless
// options.addEol = false is set explicitly
const eol = options.addEol === false ? "" : "\n";
if (options.preformatted) {
el.textContent = text + eol;
el.className += " " + "preformatted";
} else {
el.innerHTML = crackdown(text) + eol;
}
this.output.appendChild(el);
this.output.scrollTop = this.output.scrollHeight;
}
/**
* Update the status banner.
*
* @param {string} message
* @param {string} className
*/
updateStatus(message, className) {
this.status.textContent = this.dev
? `[DEV] Status: ${message}`
: `Status: ${message}`;
this.status.className = className;
}
}
// Initialize the MUD client when the page loads
document.addEventListener("DOMContentLoaded", () => {
new MUDClient();
new MUDClient();
});

107
server/public/crackdown.js Normal file → Executable file
View File

@@ -10,58 +10,61 @@
// | |_) | (_| | | \__ \ __/ |
// | .__/ \__,_|_| |___/\___|_|
// |_|
export function crackdown(text) {
console.debug("starting crack parsing");
console.debug(text);
return text
.replace(/[&<>"'`]/g, (c) => {
switch (c) {
case "&":
return "&amp;";
case "<":
return "&lt;";
case ">":
return "&gt;";
case '"':
return "&quot;";
case "'":
return "&#039;";
case "`":
return "&#096;";
default:
return c;
}
})
.replace(
/---(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])---/g,
'<span class="strike">$1</span>',
) // line-through
.replace(
/___(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])___/g,
'<span class="underline">$1</span>',
) // underline
.replace(
/_(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])_/g,
'<span class="italic">$1</span>',
) // italic
.replace(
/\*(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])\*/g,
'<span class="bold">$1</span>',
) // bold
.replace(
/\.{3}(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])\.{3}/g,
'<span class="undercurl">$1</span>',
) // undercurl
.replace(
/\({3}(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])\){3}/g,
'<span class="faint">($1)</span>',
) // faint with parentheses
.replace(
/\({2}(([a-zA-Z0-9:].*?[a-zA-Z0-9:])|[a-zA-Z0-9:])\){2}/g,
'<span class="faint">$1</span>',
); // faint with parentheses
console.debug("crack output", text);
const capture = "([a-zA-Z0-9:()-](?:.*[a-zA-Z0-9:()-])?)";
const skipSpace = "\\s*";
return text;
const htmlEscapeRegex = /[&<>"'`]/g; // used to escape html characters
/**
* @type {Array.string[]}
*
* The order of the elements of this array matters.
*/
const opcodes = [
["(^|\\n)=", "($|\\n)", "$1<h1>$2</h1>$3"],
["(^|\\n)==", "($|\\n)", "$1<h2>$2</h2>$3"],
["---", "---", "<span class='strike'>$1</span>"],
["___", "___", "<span class='underline'>$1</span>"],
["(?:[.]{3})", "(?:[.]{3})", "<span class='undercurl'>$1</span>"],
["(?:[(]{2})", "(?:[)]{2})", "<span class='faint'>$1</span>"],
["_", "_", "<span class='italic'>$1</span>"],
["\\*", "\\*", "<span class='bold'>$1</span>"],
["\\[\\[([a-zA-Z0-9_ ]+)\\[\\[", "\\]\\]", "<span class='$1'>$2</span>"],
];
/** @type{Array.Array.<Regexp,string>} */
const regexes = [];
for (const [left, right, replacement] of opcodes) {
regexes.push([new RegExp(left + skipSpace + capture + skipSpace + right, "g"), replacement]);
}
/** @param {string} text */
export function crackdown(text) {
text.replace(htmlEscapeRegex, (c) => {
switch (c) {
case "&":
return "&amp;";
case "<":
return "&lt;";
case ">":
return "&gt;";
case '"':
return "&quot;";
case "'":
return "&#039;";
case "`":
return "&#096;";
default:
return c;
}
});
for (const k in regexes) {
const [regex, replacement] = regexes[k];
text = text.replace(regex, replacement);
}
console.debug("crack output", text);
return text;
}

53
server/public/index.html
View File

@@ -1,31 +1,30 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>WebSocket MUD</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div id="container">
<div id="status" class="connecting">Connecting...</div>
<div id="output"></div>
<div id="input-container">
<input
type="text"
autocomplete="off"
id="input"
placeholder="Enter command..."
disabled
autocorrect="off"
autocomplete="off"
/>
<button id="send" disabled>Send</button>
</div>
</div>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>WebSocket MUD</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div id="container">
<div id="status" class="connecting">Connecting...</div>
<div id="output"></div>
<div id="input-container">
<input
type="text"
autocomplete="off"
id="input"
placeholder="Enter command..."
disabled
autocorrect="off"
autocomplete="off"
/>
</div>
</div>
<script type="module" src="client.js"></script>
</body>
<script type="module" src="client.js"></script>
</body>
</html>

150
server/public/style.css
View File

@@ -1,136 +1,150 @@
@import url("https://fonts.googleapis.com/css2?family=Fira+Code:wght@300..700&display=swap");
body {
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
background-color: #1a1a1a;
color: #00ff00;
margin: 0;
padding: 0;
height: 100vh;
width: 100vw;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
background-color: #1a1a1a;
color: #00ff00;
margin: 0;
padding: 0;
height: 100vh;
width: 100vw;
display: flex;
flex-direction: column;
overflow: hidden;
display: flex;
flex-direction: column;
overflow: hidden;
}
#container {
display: flex;
flex-direction: column;
height: 100vh;
max-width: 99.9vw;
margin: 0 auto;
padding: 10px;
overflow: hidden;
display: flex;
flex-direction: column;
height: 100vh;
max-width: 99.9vw;
margin: 0 auto;
padding: 10px;
overflow: hidden;
}
#output {
flex: 1;
background-color: #000;
border: 2px solid #333;
padding: 15px;
overflow-y: auto;
white-space: pre-wrap;
line-height: 1.4;
margin-bottom: 20px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
width: 100ch;
flex: 1;
background-color: #000;
border: 2px solid #333;
padding: 15px;
overflow-y: auto;
white-space: pre-wrap;
line-height: 1.4;
margin-bottom: 20px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
width: 100ch;
}
#input-container {
display: flex;
gap: 10px;
display: flex;
gap: 10px;
}
#input {
flex: 1;
background-color: #222;
border: 2px solid #333;
color: #00ff00;
padding: 10px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
flex: 1;
background-color: #222;
border: 2px solid #333;
color: #00ff00;
padding: 10px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
font-size: 14px;
}
#input:focus {
outline: none;
border-color: #00ff00;
outline: none;
border-color: #00ff00;
}
#send {
background-color: #333;
border: 2px solid #555;
color: #00ff00;
padding: 10px 20px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
cursor: pointer;
background-color: #333;
border: 2px solid #555;
color: #00ff00;
padding: 10px 20px;
font-family: "Fira Code", monospace;
font-optical-sizing: auto;
cursor: pointer;
}
#send:hover {
background-color: #444;
background-color: #444;
}
#status {
background-color: #333;
padding: 5px 15px;
margin-bottom: 10px;
border-radius: 3px;
background-color: #333;
padding: 5px 15px;
margin-bottom: 10px;
border-radius: 3px;
}
h1,
h2 {
display: inline-block;
margin-top: 0.3em;
}
.connected {
color: #00ff00;
color: #00ff00;
}
.disconnected {
color: #ff4444;
color: #ff4444;
}
.connecting {
color: #ffaa00;
color: #ffaa00;
}
.error {
color: #ff4444;
color: #ff4444;
}
.input {
color: #666;
color: #666;
}
.debug {
opacity: 0.33;
opacity: 0.33;
}
.prompt {
color: #00ccff;
color: #00ccff;
}
.bold {
font-weight: bold;
font-weight: bold;
}
.italic {
font-style: italic;
font-style: italic;
}
.strike {
text-decoration: line-through;
text-decoration: line-through;
}
.underline {
text-decoration: underline;
text-decoration: underline;
}
.undercurl {
text-decoration: wavy underline lime;
text-decoration: wavy underline rgb(00 100% 00 / 40%);
}
.faint {
opacity: 0.42;
opacity: 0.42;
}
.fBlue {
color: blue;
}
.bRed {
background-color: red;
}