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chat.js
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/**
* Chat
* Pokemon Showdown - http://pokemonshowdown.com/
*
* This handles chat and chat commands sent from users to chatrooms
* and PMs. The main function you're looking for is Chat.parse
* (scroll down to its definition for details)
*
* Individual commands are put in:
* chat-commands.js - "core" commands that shouldn't be modified
* chat-plugins/ - other commands that can be safely modified
*
* The command API is (mostly) documented in chat-plugins/COMMANDS.md
*
* @license MIT license
*/
/*
To reload chat commands:
/hotpatch chat
*/
'use strict';
/** @typedef {GlobalRoom | GameRoom | ChatRoom} Room */
const LINK_WHITELIST = ['*.pokemonshowdown.com', 'psim.us', 'smogtours.psim.us', '*.smogon.com', '*.pastebin.com', '*.hastebin.com'];
const MAX_MESSAGE_LENGTH = 300;
const BROADCAST_COOLDOWN = 20 * 1000;
const MESSAGE_COOLDOWN = 5 * 60 * 1000;
const MAX_PARSE_RECURSION = 10;
const VALID_COMMAND_TOKENS = '/!';
const BROADCAST_TOKEN = '!';
const FS = require('./lib/fs');
let Chat = module.exports;
// Matches U+FE0F and all Emoji_Presentation characters. More details on
// http://www.unicode.org/Public/emoji/5.0/emoji-data.txt
const emojiRegex = /[\u231A\u231B\u23E9-\u23EC\u23F0\u23F3\u25FD\u25FE\u2614\u2615\u2648-\u2653\u267F\u2693\u26A1\u26AA\u26AB\u26BD\u26BE\u26C4\u26C5\u26CE\u26D4\u26EA\u26F2\u26F3\u26F5\u26FA\u26FD\u2705\u270A\u270B\u2728\u274C\u274E\u2753-\u2755\u2757\u2795-\u2797\u27B0\u27BF\u2B1B\u2B1C\u2B50\u2B55\uFE0F\u{1F004}\u{1F0CF}\u{1F18E}\u{1F191}-\u{1F19A}\u{1F1E6}-\u{1F1FF}\u{1F201}\u{1F21A}\u{1F22F}\u{1F232}-\u{1F236}\u{1F238}-\u{1F23A}\u{1F250}\u{1F251}\u{1F300}-\u{1F320}\u{1F32D}-\u{1F335}\u{1F337}-\u{1F37C}\u{1F37E}-\u{1F393}\u{1F3A0}-\u{1F3CA}\u{1F3CF}-\u{1F3D3}\u{1F3E0}-\u{1F3F0}\u{1F3F4}\u{1F3F8}-\u{1F43E}\u{1F440}\u{1F442}-\u{1F4FC}\u{1F4FF}-\u{1F53D}\u{1F54B}-\u{1F54E}\u{1F550}-\u{1F567}\u{1F57A}\u{1F595}\u{1F596}\u{1F5A4}\u{1F5FB}-\u{1F64F}\u{1F680}-\u{1F6C5}\u{1F6CC}\u{1F6D0}-\u{1F6D2}\u{1F6EB}\u{1F6EC}\u{1F6F4}-\u{1F6F8}\u{1F910}-\u{1F93A}\u{1F93C}-\u{1F93E}\u{1F940}-\u{1F945}\u{1F947}-\u{1F94C}\u{1F950}-\u{1F96B}\u{1F980}-\u{1F997}\u{1F9C0}\u{1F9D0}-\u{1F9E6}]/u;
class PatternTester {
// This class sounds like a RegExp
// In fact, one could in theory implement it as a RegExp subclass
// However, ES2016 RegExp subclassing is a can of worms, and it wouldn't allow us
// to tailor the test method for fast command parsing.
constructor() {
/** @type {string[]} */
this.elements = [];
/** @type {Set<string>} */
this.fastElements = new Set();
/** @type {?RegExp} */
this.regexp = null;
}
/**
* @param {string} elem
*/
fastNormalize(elem) {
return elem.slice(0, -1);
}
update() {
const slowElements = this.elements.filter(elem => !this.fastElements.has(this.fastNormalize(elem)));
if (slowElements.length) {
this.regexp = new RegExp('^(' + slowElements.map(elem => '(?:' + elem + ')').join('|') + ')', 'i');
}
}
/**
* @param {string[]} elems
*/
register(...elems) {
for (const elem of elems) {
this.elements.push(elem);
if (/^[^ ^$?|()[\]]+ $/.test(elem)) {
this.fastElements.add(this.fastNormalize(elem));
}
}
this.update();
}
/**
* @param {string} text
*/
test(text) {
const spaceIndex = text.indexOf(' ');
if (this.fastElements.has(spaceIndex >= 0 ? text.slice(0, spaceIndex) : text)) {
return true;
}
if (!this.regexp) return false;
return this.regexp.test(text);
}
}
Chat.multiLinePattern = new PatternTester();
/*********************************************************
* Load command files
*********************************************************/
Chat.baseCommands = undefined;
Chat.commands = undefined;
Chat.pages = undefined;
/*********************************************************
* Load chat filters
*********************************************************/
Chat.filters = [];
/**
* @param {string} message
* @param {User} user
* @param {ChatRoom} room
* @param {Connection} connection
* @param {User?} [targetUser]
*/
Chat.filter = function (message, user, room, connection, targetUser = null) {
// Chat filters can choose to:
// 1. return false OR null - to not send a user's message
// 2. return an altered string - to alter a user's message
// 3. return undefined to send the original message through
const originalMessage = message;
for (const filter of Chat.filters) {
const output = filter.call(this, message, user, room, connection, targetUser, originalMessage);
if (output !== undefined) message = output;
if (!message) return message;
}
return message;
};
Chat.namefilters = [];
/**
* @param {string} name
* @param {User} user
*/
Chat.namefilter = function (name, user) {
if (!Config.disablebasicnamefilter) {
// whitelist
// \u00A1-\u00BF\u00D7\u00F7 Latin punctuation/symbols
// \u02B9-\u0362 basic combining accents
// \u2012-\u2027\u2030-\u205E Latin punctuation/symbols extended
// \u2050-\u205F fractions extended
// \u2190-\u23FA\u2500-\u2BD1 misc symbols
// \u2E80-\u32FF CJK symbols
// \u3400-\u9FFF CJK
// \uF900-\uFAFF\uFE00-\uFE6F CJK extended
name = name.replace(/[^a-zA-Z0-9 /\\.~()<>^*%&=+$@#_'?!"\u00A1-\u00BF\u00D7\u00F7\u02B9-\u0362\u2012-\u2027\u2030-\u205E\u2050-\u205F\u2190-\u23FA\u2500-\u2BD1\u2E80-\u32FF\u3400-\u9FFF\uF900-\uFAFF\uFE00-\uFE6F-]+/g, '');
// blacklist
// \u00a1 upside-down exclamation mark (i)
// \u2580-\u2590 black bars
// \u25A0\u25Ac\u25AE\u25B0 black bars
// \u534d\u5350 swastika
// \u2a0d crossed integral (f)
name = name.replace(/[\u00a1\u2580-\u2590\u25A0\u25Ac\u25AE\u25B0\u2a0d\u534d\u5350]/g, '');
// e-mail address
if (name.includes('@') && name.includes('.')) return '';
}
name = name.replace(/^[^A-Za-z0-9]+/, ""); // remove symbols from start
// cut name length down to 18 chars
if (/[A-Za-z0-9]/.test(name.slice(18))) {
name = name.replace(/[^A-Za-z0-9]+/g, "");
} else {
name = name.slice(0, 18);
}
name = Dex.getName(name);
for (const filter of Chat.namefilters) {
name = filter(name, user);
if (!name) return '';
}
return name;
};
Chat.hostfilters = [];
/**
* @param {string} host
* @param {User} user
* @param {Connection} connection
*/
Chat.hostfilter = function (host, user, connection) {
for (const filter of Chat.hostfilters) {
filter(host, user, connection);
}
};
Chat.loginfilters = [];
/**
* @param {User} user
* @param {User?} oldUser
* @param {string} usertype
*/
Chat.loginfilter = function (user, oldUser, usertype) {
for (const filter of Chat.loginfilters) {
filter(user, oldUser, usertype);
}
};
/*********************************************************
* Parser
*********************************************************/
class CommandContext {
/**
* @param {{message: string, room: Room, user: User, connection: Connection, pmTarget?: User, cmd?: string, cmdToken?: string, target?: string, fullCmd?: string}} options
*/
constructor(options) {
this.message = options.message || ``;
this.recursionDepth = 0;
// message context
this.room = options.room;
this.user = options.user;
this.connection = options.connection;
this.pmTarget = options.pmTarget;
// command context
this.cmd = options.cmd || '';
this.cmdToken = options.cmdToken || '';
this.target = options.target || ``;
this.fullCmd = options.fullCmd || '';
// broadcast context
this.broadcasting = false;
this.broadcastToRoom = true;
// target user
this.targetUser = null;
this.targetUsername = "";
this.inputUsername = "";
}
/**
* @param {any} [message]
* @return {any}
*/
parse(message) {
if (message) {
// spawn subcontext
let subcontext = new CommandContext(this);
subcontext.recursionDepth++;
if (subcontext.recursionDepth > MAX_PARSE_RECURSION) {
throw new Error("Too much command recursion");
}
subcontext.message = message;
return subcontext.parse();
}
message = this.message;
let originalRoom = this.room;
if (this.room && !(this.user.userid in this.room.users)) {
this.room = Rooms.global;
}
let commandHandler = this.splitCommand(message);
if (typeof commandHandler === 'function') {
message = this.run(commandHandler);
} else {
if (commandHandler === '!') {
if (originalRoom === Rooms.global) {
return this.popupReply(`You tried use "${message}" as a global command, but it is not a global command.`);
} else if (originalRoom) {
return this.popupReply(`You tried to send "${message}" to the room "${originalRoom.id}" but it failed because you were not in that room.`);
}
return this.errorReply(`The command "${this.cmdToken}${this.fullCmd}" is unavailable in private messages. To send a message starting with "${this.cmdToken}${this.fullCmd}", type "${this.cmdToken}${this.cmdToken}${this.fullCmd}".`);
}
if (this.cmdToken) {
// To guard against command typos, show an error message
if (this.cmdToken === BROADCAST_TOKEN) {
if (/[a-z0-9]/.test(this.cmd.charAt(0))) {
return this.errorReply(`The command "${this.cmdToken}${this.fullCmd}" does not exist.`);
}
} else {
return this.errorReply(`The command "${this.cmdToken}${this.fullCmd}" does not exist. To send a message starting with "${this.cmdToken}${this.fullCmd}", type "${this.cmdToken}${this.cmdToken}${this.fullCmd}".`);
}
} else if (!VALID_COMMAND_TOKENS.includes(message.charAt(0)) && VALID_COMMAND_TOKENS.includes(message.trim().charAt(0))) {
message = message.trim();
if (message.charAt(0) !== BROADCAST_TOKEN) {
message = message.charAt(0) + message;
}
}
message = this.canTalk(message);
}
// Output the message
if (message && message !== true && typeof message.then !== 'function') {
if (this.pmTarget) {
Chat.sendPM(message, this.user, this.pmTarget);
} else {
this.room.add(`|c|${this.user.getIdentity(this.room.id)}|${message}`);
}
}
this.update();
return message;
}
/**
* @param {string} message
* @param {boolean} recursing
* @return {string | undefined}
*/
splitCommand(message = this.message, recursing = false) {
this.cmd = '';
this.cmdToken = '';
this.target = '';
if (!message || !message.trim().length) return;
// hardcoded commands
if (message.startsWith(`>> `)) {
message = `/eval ${message.slice(3)}`;
} else if (message.startsWith(`>>> `)) {
message = `/evalbattle ${message.slice(4)}`;
} else if (message.startsWith(`/me`) && /[^A-Za-z0-9 ]/.test(message.charAt(3))) {
message = `/mee ${message.slice(3)}`;
} else if (message.startsWith(`/ME`) && /[^A-Za-z0-9 ]/.test(message.charAt(3))) {
message = `/MEE ${message.slice(3)}`;
}
let cmdToken = message.charAt(0);
if (!VALID_COMMAND_TOKENS.includes(cmdToken)) return;
if (cmdToken === message.charAt(1)) return;
if (cmdToken === BROADCAST_TOKEN && /[^A-Za-z0-9]/.test(message.charAt(1))) return;
let cmd = '', target = '';
let spaceIndex = message.indexOf(' ');
if (spaceIndex > 0) {
cmd = message.slice(1, spaceIndex).toLowerCase();
target = message.slice(spaceIndex + 1);
} else {
cmd = message.slice(1).toLowerCase();
target = '';
}
let curCommands = Chat.commands;
let commandHandler;
let fullCmd = cmd;
do {
if (curCommands.hasOwnProperty(cmd)) {
commandHandler = curCommands[cmd];
} else {
commandHandler = undefined;
}
if (typeof commandHandler === 'string') {
// in case someone messed up, don't loop
commandHandler = curCommands[commandHandler];
} else if (Array.isArray(commandHandler) && !recursing) {
return this.splitCommand(cmdToken + 'help ' + fullCmd.slice(0, -4), true);
}
if (commandHandler && typeof commandHandler === 'object') {
let spaceIndex = target.indexOf(' ');
if (spaceIndex > 0) {
cmd = target.substr(0, spaceIndex).toLowerCase();
target = target.substr(spaceIndex + 1);
} else {
cmd = target.toLowerCase();
target = '';
}
fullCmd += ' ' + cmd;
curCommands = commandHandler;
}
} while (commandHandler && typeof commandHandler === 'object');
if (!commandHandler && curCommands.default) {
commandHandler = curCommands.default;
if (typeof commandHandler === 'string') {
commandHandler = curCommands[commandHandler];
}
}
if (!commandHandler && !recursing) {
for (let g in Config.groups) {
let groupid = Config.groups[g].id;
if (cmd === groupid) {
return this.splitCommand(`/promote ${target}, ${g}`, true);
} else if (cmd === 'global' + groupid) {
return this.splitCommand(`/globalpromote ${target}, ${g}`, true);
} else if (cmd === 'de' + groupid || cmd === 'un' + groupid || cmd === 'globalde' + groupid || cmd === 'deglobal' + groupid) {
return this.splitCommand(`/demote ${target}`, true);
} else if (cmd === 'room' + groupid) {
return this.splitCommand(`/roompromote ${target}, ${g}`, true);
} else if (cmd === 'forceroom' + groupid) {
return this.splitCommand(`/roompromote !!!${target}, ${g}`, true);
} else if (cmd === 'roomde' + groupid || cmd === 'deroom' + groupid || cmd === 'roomun' + groupid) {
return this.splitCommand(`/roomdemote ${target}`, true);
}
}
}
this.cmd = cmd;
this.cmdToken = cmdToken;
this.target = target;
this.fullCmd = fullCmd;
if (typeof commandHandler === 'function' && (this.pmTarget || this.room === Rooms.global)) {
if (!curCommands['!' + (typeof curCommands[cmd] === 'string' ? curCommands[cmd] : cmd)]) {
return '!';
}
}
return commandHandler;
}
/**
* @param {string | {call: Function}} commandHandler
*/
run(commandHandler) {
if (typeof commandHandler === 'string') commandHandler = Chat.commands[commandHandler];
let result;
try {
// @ts-ignore
result = commandHandler.call(this, this.target, this.room, this.user, this.connection, this.cmd, this.message);
} catch (err) {
require('./lib/crashlogger')(err, 'A chat command', {
user: this.user.name,
room: this.room && this.room.id,
pmTarget: this.pmTarget && this.pmTarget.name,
message: this.message,
});
Rooms.global.reportCrash(err);
this.sendReply(`|html|<div class="broadcast-red"><b>Pokemon Showdown crashed!</b><br />Don't worry, we're working on fixing it.</div>`);
}
if (result === undefined) result = false;
return result;
}
/**
* @param {BasicChatRoom?} room
* @param {User} user
* @param {string} message
*/
checkFormat(room, user, message) {
if (!room) return true;
if (!room.filterStretching && !room.filterCaps && !room.filterEmojis) return true;
if (user.can('bypassall')) return true;
if (room.filterStretching && user.name.match(/(.+?)\1{5,}/i)) {
return this.errorReply(`Your username contains too much stretching, which this room doesn't allow.`);
}
if (room.filterCaps && user.name.match(/[A-Z\s]{6,}/)) {
return this.errorReply(`Your username contains too many capital letters, which this room doesn't allow.`);
}
if (room.filterEmojis && user.name.match(emojiRegex)) {
return this.errorReply(`Your username contains emojis, which this room doesn't allow.`);
}
// Removes extra spaces and null characters
message = message.trim().replace(/[ \u0000\u200B-\u200F]+/g, ' ');
if (room.filterStretching && message.match(/(.+?)\1{7,}/i)) {
return this.errorReply(`Your message contains too much stretching, which this room doesn't allow.`);
}
if (room.filterCaps && message.match(/[A-Z\s]{18,}/)) {
return this.errorReply(`Your message contains too many capital letters, which this room doesn't allow.`);
}
if (room.filterEmojis && message.match(emojiRegex)) {
return this.errorReply(`Your message contains emojis, which this room doesn't allow.`);
}
return true;
}
/**
* @param {BasicChatRoom?} room
* @param {User} user
*/
checkSlowchat(room, user) {
if (!room || !room.slowchat) return true;
let lastActiveSeconds = (Date.now() - user.lastMessageTime) / 1000;
if (lastActiveSeconds < room.slowchat) return false;
return true;
}
/**
* @param {BasicChatRoom?} room
* @param {string} message
*/
checkBanwords(room, message) {
if (!room) return true;
if (!room.banwordRegex) {
if (room.banwords && room.banwords.length) {
room.banwordRegex = new RegExp('(?:\\b|(?!\\w))(?:' + room.banwords.join('|') + ')(?:\\b|\\B(?!\\w))', 'i');
} else {
room.banwordRegex = true;
}
}
if (!message) return true;
if (room.banwordRegex !== true && room.banwordRegex.test(message)) {
return false;
}
return true;
}
checkGameFilter() {
// @ts-ignore
if (!this.room || !this.room.game || !this.room.game.onChatMessage) return false;
// @ts-ignore
return this.room.game.onChatMessage(this.message, this.user);
}
/**
* @param {string} message
*/
pmTransform(message) {
if (!this.pmTarget) throw new Error(`Not a PM`);
let prefix = `|pm|${this.user.getIdentity()}|${this.pmTarget.getIdentity()}|`;
return message.split('\n').map(message => {
if (message.startsWith('||')) {
return prefix + '/text ' + message.slice(2);
} else if (message.startsWith('|html|')) {
return prefix + '/raw ' + message.slice(6);
} else if (message.startsWith('|raw|')) {
return prefix + '/raw ' + message.slice(5);
} else if (message.startsWith('|c~|')) {
return prefix + message.slice(4);
} else if (message.startsWith('|c|~|/')) {
return prefix + message.slice(5);
}
return prefix + '/text ' + message;
}).join('\n');
}
/**
* @param {string} data
*/
sendReply(data) {
if (this.broadcasting && this.broadcastToRoom) {
// broadcasting
this.add(data);
} else {
// not broadcasting
if (this.pmTarget) {
data = this.pmTransform(data);
this.connection.send(data);
} else {
this.connection.sendTo(this.room, data);
}
}
}
/**
* @param {string} message
*/
errorReply(message) {
if (this.pmTarget) {
let prefix = '|pm|' + this.user.getIdentity() + '|' + this.pmTarget.getIdentity() + '|/error ';
this.connection.send(prefix + message.replace(/\n/g, prefix));
} else {
this.sendReply('|html|<div class="message-error">' + Chat.escapeHTML(message).replace(/\n/g, '<br />') + '</div>');
}
}
/**
* @param {string} html
*/
addBox(html) {
this.add('|html|<div class="infobox">' + html + '</div>');
}
/**
* @param {string} html
*/
sendReplyBox(html) {
this.sendReply('|html|<div class="infobox">' + html + '</div>');
}
/**
* @param {string} message
*/
popupReply(message) {
this.connection.popup(message);
}
/**
* @param {string} data
*/
add(data) {
if (this.pmTarget) {
data = this.pmTransform(data);
this.user.send(data);
if (this.pmTarget !== this.user) this.pmTarget.send(data);
return;
}
this.room.add(data);
}
/**
* @param {string} data
*/
send(data) {
if (this.pmTarget) {
data = this.pmTransform(data);
this.user.send(data);
if (this.pmTarget !== this.user) this.pmTarget.send(data);
return;
}
this.room.send(data);
}
/**
* @param {string} data
*/
sendModCommand(data) {
this.room.sendModsByUser(this.user, data);
}
privateModCommand() {
throw new Error(`this.privateModCommand has been renamed to this.privateModAction, which no longer writes to modlog.`);
}
/**
* @param {string} msg
*/
privateModAction(msg) {
this.room.sendMods(msg);
this.roomlog(msg);
}
/**
* @param {string} action
* @param {string | User} user
* @param {string} note
*/
globalModlog(action, user, note) {
let buf = `(${this.room.id}) ${action}: `;
if (typeof user === 'string') {
buf += `[${user}]`;
} else {
let userid = user.getLastId();
buf += `[${userid}]`;
if (user.autoconfirmed && user.autoconfirmed !== userid) buf += ` ac:[${user.autoconfirmed}]`;
const alts = user.getAltUsers(false, true).map(user => user.getLastId()).join('], [');
if (alts.length) buf += ` alts:[${alts}]`;
buf += ` [${user.latestIp}]`;
}
buf += note;
Rooms.global.modlog(buf);
this.room.modlog(buf);
}
/**
* @param {string} action
* @param {string | User} user
* @param {string} note
* @param {object} options
*/
modlog(action, user, note, options = {}) {
let buf = `(${this.room.id}) ${action}: `;
if (user) {
if (typeof user === 'string') {
buf += `[${toId(user)}]`;
} else {
let userid = user.getLastId();
buf += `[${userid}]`;
if (!options.noalts) {
if (user.autoconfirmed && user.autoconfirmed !== userid) buf += ` ac:[${user.autoconfirmed}]`;
const alts = user.getAltUsers(false, true).map(user => user.getLastId()).join('], [');
if (alts.length) buf += ` alts:[${alts}]`;
}
if (!options.noip) buf += ` [${user.latestIp}]`;
}
}
buf += ` by ${this.user.userid}`;
if (note) buf += `: ${note}`;
this.room.modlog(buf);
}
/**
* @param {string} data
*/
roomlog(data) {
if (this.pmTarget) return;
this.room.roomlog(data);
}
logEntry() {
throw new Error(`this.logEntry has been renamed to this.roomlog.`);
}
addModCommand() {
throw new Error(`this.addModCommand has been renamed to this.addModAction, which no longer writes to modlog.`);
}
/**
* @param {string} msg
*/
addModAction(msg) {
this.room.addByUser(this.user, msg);
}
update() {
if (this.room) this.room.update();
}
/**
* @param {string} permission
* @param {string | User} target
* @param {BasicChatRoom} room
*/
can(permission, target, room) {
if (!this.user.can(permission, target, room)) {
this.errorReply(this.cmdToken + this.fullCmd + " - Access denied.");
return false;
}
return true;
}
/**
* @param {?string} suppressMessage
*/
canBroadcast(suppressMessage) {
if (!this.broadcasting && this.cmdToken === BROADCAST_TOKEN) {
if (!this.pmTarget && !this.user.can('broadcast', null, this.room)) {
this.errorReply("You need to be voiced to broadcast this command's information.");
this.errorReply("To see it for yourself, use: /" + this.message.substr(1));
return false;
}
if (this.room && this.room.lastBroadcast === this.broadcastMessage &&
this.room.lastBroadcastTime >= Date.now() - BROADCAST_COOLDOWN) {
this.errorReply("You can't broadcast this because it was just broadcasted.");
return false;
}
let message = this.canTalk(suppressMessage || this.message);
if (!message) return false;
// broadcast cooldown
let broadcastMessage = message.toLowerCase().replace(/[^a-z0-9\s!,]/g, '');
this.message = message;
this.broadcastMessage = broadcastMessage;
}
return true;
}
/**
* @param {?string} suppressMessage
*/
runBroadcast(suppressMessage) {
if (this.broadcasting || this.cmdToken !== BROADCAST_TOKEN) {
// Already being broadcast, or the user doesn't intend to broadcast.
return true;
}
if (!this.broadcastMessage) {
// Permission hasn't been checked yet. Do it now.
if (!this.canBroadcast(suppressMessage)) return false;
}
this.broadcasting = true;
if (this.pmTarget) {
this.sendReply('|c~|' + (suppressMessage || this.message));
} else {
this.sendReply('|c|' + this.user.getIdentity(this.room.id) + '|' + (suppressMessage || this.message));
}
if (!this.pmTarget) {
this.room.lastBroadcast = this.broadcastMessage;
this.room.lastBroadcastTime = Date.now();
}
return true;
}
/**
* @param {string} text
*/
meansYes(text) {
switch (text.toLowerCase().trim()) {
case 'on': case 'enable': case 'yes': case 'true':
return true;
}
return false;
}
/**
* @param {string} text
*/
meansNo(text) {
switch (text.toLowerCase().trim()) {
case 'off': case 'disable': case 'no': case 'false':
return true;
}
return false;
}
/**
* @param {string} message
* @param {BasicChatRoom?} [room]
* @param {User?} [targetUser]
*/
canTalk(message, room, targetUser) {
if (!room) room = this.room;
if (!targetUser && this.pmTarget) {
room = null;
targetUser = this.pmTarget;
}
let user = this.user;
let connection = this.connection;
if (room && room.id === 'global') {
// should never happen
// console.log(`Command tried to write to global: ${user.name}: ${message}`);
return false;
}
if (!user.named) {
connection.popup(`You must choose a name before you can talk.`);
return false;
}
if (!user.can('bypassall')) {
let lockType = (user.namelocked ? `namelocked` : user.locked ? `locked` : ``);
let lockExpiration = Punishments.checkLockExpiration(user.namelocked || user.locked);
if (room) {
if (lockType && !room.isHelp) {
this.errorReply(`You are ${lockType} and can't talk in chat. ${lockExpiration}`);
// this.sendReply(`|html|<a href="view-help-request-appeal-lock" class="button">Get help with this</a>`);
return false;
}
if (room.isMuted(user)) {
this.errorReply(`You are muted and cannot talk in this room.`);
return false;
}
if (room.modchat && !user.authAtLeast(room.modchat, room)) {
if (room.modchat === 'autoconfirmed') {
this.errorReply(`Because moderated chat is set, your account must be at least one week old and you must have won at least one ladder game to speak in this room.`);
return false;
}
if (room.modchat === 'trusted') {
this.errorReply(`Because moderated chat is set, your account must be staff in a public room or have a global rank to speak in this room.`);
return false;
}
const groupName = Config.groups[room.modchat] && Config.groups[room.modchat].name || room.modchat;
this.errorReply(`Because moderated chat is set, you must be of rank ${groupName} or higher to speak in this room.`);
return false;
}
if (!(user.userid in room.users)) {
connection.popup("You can't send a message to this room without being in it.");
return false;
}
}
if (targetUser) {
if (lockType && !targetUser.can('lock')) {
return this.errorReply(`You are ${lockType} and can only private message members of the global moderation team (users marked by @ or above in the Help room). ${lockExpiration}`);
}
if (targetUser.locked && !user.can('lock')) {
return this.errorReply(`The user "${targetUser.name}" is locked and cannot be PMed.`);
}
if (Config.pmmodchat && !user.authAtLeast(Config.pmmodchat) && !targetUser.canPromote(user.group, Config.pmmodchat)) {
let groupName = Config.groups[Config.pmmodchat] && Config.groups[Config.pmmodchat].name || Config.pmmodchat;
return this.errorReply(`On this server, you must be of rank ${groupName} or higher to PM users.`);
}
if (targetUser.ignorePMs && targetUser.ignorePMs !== user.group && !user.can('lock')) {
if (!targetUser.can('lock')) {
return this.errorReply(`This user is blocking private messages right now.`);
} else if (targetUser.can('bypassall')) {
return this.errorReply(`This admin is too busy to answer private messages right now. Please contact a different staff member.`);
}
}
if (user.ignorePMs && user.ignorePMs !== targetUser.group && !targetUser.can('lock')) {
return this.errorReply(`You are blocking private messages right now.`);
}
}
}
if (typeof message !== 'string') return true;
if (!message) {
connection.popup("Your message can't be blank.");
return false;
}
let length = message.length;
length += 10 * message.replace(/[^\ufdfd]*/g, '').length;
if (length > MAX_MESSAGE_LENGTH && !user.can('ignorelimits')) {
this.errorReply("Your message is too long: " + message);
return false;
}
// remove zalgo
message = message.replace(/[\u0300-\u036f\u0483-\u0489\u0610-\u0615\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06ED\u0E31\u0E34-\u0E3A\u0E47-\u0E4E]{3,}/g, '');
if (/[\u115f\u1160\u239b-\u23b9]/.test(message)) {
this.errorReply("Your message contains banned characters.");
return false;
}
// If the corresponding config option is set, non-AC users cannot send links, except to staff.
if (Config.restrictLinks && !user.autoconfirmed) {
const links = message.match(Chat.linkRegex);
const allLinksWhitelisted = !links || links.every(link => {
link = link.toLowerCase();
const domainMatches = /^(?:http:\/\/|https:\/\/)?(?:[^/]*\.)?([^/.]*\.[^/.]*)\.?($|\/|:)/.exec(link);
const domain = domainMatches && domainMatches[1];
const hostMatches = /^(?:http:\/\/|https:\/\/)?([^/]*[^/.])\.?($|\/|:)/.exec(link);
let host = hostMatches && hostMatches[1];
if (host && host.startsWith('www.')) host = host.slice(4);
if (!domain || !host) return false;
return LINK_WHITELIST.includes(host) || LINK_WHITELIST.includes(`*.${domain}`);
});
if (!allLinksWhitelisted && !(targetUser && targetUser.can('lock'))) {
this.errorReply("Your account must be autoconfirmed to send links to other users, except for global staff.");
return false;
}
}
if (!this.checkFormat(room, user, message)) {
return false;
}
if (!this.checkSlowchat(room, user) && !user.can('mute', null, room)) {
// @ts-ignore
this.errorReply("This room has slow-chat enabled. You can only talk once every " + room.slowchat + " seconds.");
return false;
}
if (!this.checkBanwords(room, user.name) && !user.can('bypassall')) {
this.errorReply(`Your username contains a phrase banned by this room.`);
return false;
}
if (!this.checkBanwords(room, message) && !user.can('mute', null, room)) {
this.errorReply("Your message contained banned words.");
return false;
}
let gameFilter = this.checkGameFilter();
if (gameFilter && !user.can('bypassall')) {
this.errorReply(gameFilter);
return false;
}
if (room) {
let normalized = message.trim();
if (!user.can('bypassall') && (room.id === 'lobby' || room.id === 'help') && (normalized === user.lastMessage) &&
((Date.now() - user.lastMessageTime) < MESSAGE_COOLDOWN)) {
this.errorReply("You can't send the same message again so soon.");
return false;
}
user.lastMessage = message;
user.lastMessageTime = Date.now();
}
if (Chat.filters.length) {
return Chat.filter.call(this, message, user, room, connection, targetUser);
}
return message;
}
/**
* @param {string} uri
* @param {boolean} isRelative
*/
canEmbedURI(uri, isRelative) {
if (uri.startsWith('https://')) return uri;
if (uri.startsWith('//')) return uri;
if (uri.startsWith('data:')) return uri;
if (!uri.startsWith('http://')) {
if (/^[a-z]+:\/\//.test(uri) || isRelative) {
return this.errorReply("URIs must begin with 'https://' or 'http://' or 'data:'");
}
} else {
uri = uri.slice(7);
}
let slashIndex = uri.indexOf('/');
let domain = (slashIndex >= 0 ? uri.slice(0, slashIndex) : uri);
// heuristic that works for all the domains we care about
let secondLastDotIndex = domain.lastIndexOf('.', domain.length - 5);
if (secondLastDotIndex >= 0) domain = domain.slice(secondLastDotIndex + 1);
let approvedDomains = {
'imgur.com': 1,
'gyazo.com': 1,
'puu.sh': 1,
'rotmgtool.com': 1,
'pokemonshowdown.com': 1,
'nocookie.net': 1,
'blogspot.com': 1,
'imageshack.us': 1,
'deviantart.net': 1,
'd.pr': 1,
'pokefans.net': 1,
};
if (domain in approvedDomains) {
return '//' + uri;
}
if (domain === 'bit.ly') {
return this.errorReply("Please don't use URL shorteners.");
}
// unknown URI, allow HTTP to be safe
return 'http://' + uri;
}
/**
* @param {?string} html
*/
canHTML(html) {
html = ('' + (html || '')).trim();
if (!html) return '';
let images = /<img\b[^<>]*/ig;
let match;
while ((match = images.exec(html))) {
if (this.room.isPersonal && !this.user.can('announce')) {
this.errorReply("Images are not allowed in personal rooms.");
return false;
}
if (!/width=([0-9]+|"[0-9]+")/i.test(match[0]) || !/height=([0-9]+|"[0-9]+")/i.test(match[0])) {
// Width and height are required because most browsers insert the
// <img> element before width and height are known, and when the
// image is loaded, this changes the height of the chat area, which
// messes up autoscrolling.
this.errorReply('All images must have a width and height attribute');
return false;
}
let srcMatch = /src\s*=\s*"?([^ "]+)(\s*")?/i.exec(match[0]);
if (srcMatch) {
let uri = this.canEmbedURI(srcMatch[1], true);