pokemon-showdown/server/chat.ts

1936 lines
66 KiB
TypeScript

/**
* 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/ - "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
*/
/*
To reload chat commands:
/hotpatch chat
*/
'use strict';
export type PageHandler = (this: PageContext, query: string[], user: User, connection: Connection)
=> Promise<string | null | void> | string | null | void;
export interface PageTable {
[k: string]: PageHandler | PageTable;
}
export type ChatHandler = (
this: CommandContext,
target: string,
room: ChatRoom | GameRoom,
user: User,
connection: Connection,
cmd: string,
message: string
) => void;
export interface ChatCommands {
[k: string]: ChatHandler | string | string[] | true | ChatCommands;
}
export type SettingsHandler = (
room: BasicChatRoom,
user: User,
connection: Connection
) => {
label: string,
permission: boolean | string,
// button label, command | disabled
options: [string, string | true][],
};
/**
* 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
*/
export type ChatFilter = (
this: CommandContext,
message: string,
user: User,
room: ChatRoom | GameRoom | null,
connection: Connection,
targetUser: User | null,
originalMessage: string
) => string | false | null | undefined;
export type NameFilter = (name: string, user: User) => string;
export type StatusFilter = (status: string, user: User) => string;
export type LoginFilter = (user: User, oldUser: User | null, userType: string) => void;
export type HostFilter = (host: string, user: User, connection: Connection, hostType: string) => void;
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 TRANSLATION_DIRECTORY = 'translations/';
import { FS } from '../lib/fs';
import { formatText, linkRegex, stripFormatting } from './chat-formatter';
// @ts-ignore no typedef available
import ProbeModule = require('probe-image-size');
const probe: (url: string) => Promise<{width: number, height: number}> = ProbeModule;
const emojiRegex = /[\p{Emoji_Modifier_Base}\p{Emoji_Presentation}\uFE0F]/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.
readonly elements: string[];
readonly fastElements: Set<string>;
regexp: RegExp | null;
constructor() {
this.elements = [];
this.fastElements = new Set();
this.regexp = null;
}
fastNormalize(elem: string) {
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');
}
}
register(...elems: string[]) {
for (const elem of elems) {
this.elements.push(elem);
if (/^[^ ^$?|()[\]]+ $/.test(elem)) {
this.fastElements.add(this.fastNormalize(elem));
}
}
this.update();
}
testCommand(text: string) {
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);
}
test(text: string) {
if (!text.includes('\n')) return null;
if (this.testCommand(text)) return text;
// The PM matching is a huge mess, and really needs to be replaced with
// the new multiline command system soon.
const pmMatches = /^(\/(?:pm|w|whisper|msg) [^,]*, ?)(.*)/i.exec(text);
if (pmMatches && this.testCommand(pmMatches[2])) {
if (text.split('\n').every(line => line.startsWith(pmMatches[1]))) {
return text.replace(/\n\/(?:pm|w|whisper|msg) [^,]*, ?/g, '\n');
}
return text;
}
return null;
}
}
/*********************************************************
* Parser
*********************************************************/
// These classes need to be declared here because they aren't hoisted
class MessageContext {
readonly user: User;
language: string | null;
recursionDepth: number;
constructor(user: User, language: string | null = null) {
this.user = user;
this.language = language;
this.recursionDepth = 0;
}
splitOne(target: string) {
const commaIndex = target.indexOf(',');
if (commaIndex < 0) {
return [target.trim(), ''];
}
return [target.slice(0, commaIndex).trim(), target.slice(commaIndex + 1).trim()];
}
meansYes(text: string) {
switch (text.toLowerCase().trim()) {
case 'on': case 'enable': case 'yes': case 'true':
return true;
}
return false;
}
meansNo(text: string) {
switch (text.toLowerCase().trim()) {
case 'off': case 'disable': case 'no': case 'false':
return true;
}
return false;
}
tr(strings: TemplateStringsArray | string, ...keys: any[]) {
return Chat.tr(this.language, strings, ...keys);
}
}
export class PageContext extends MessageContext {
readonly connection: Connection;
room: Room;
pageid: string;
initialized: boolean;
title: string;
constructor(options: {pageid: string, user: User, connection: Connection, language?: string}) {
super(options.user, options.language);
this.connection = options.connection;
this.room = Rooms.get('global')!;
this.pageid = options.pageid;
this.initialized = false;
this.title = 'Page';
}
can(permission: string, target: string | User | null = null, room: BasicChatRoom | null = null) {
if (!this.user.can(permission, target, room)) {
this.send(`<h2>Permission denied.</h2>`);
return false;
}
return true;
}
extractRoom(pageid?: string) {
if (!pageid) pageid = this.pageid;
const parts = pageid.split('-');
// Since we assume pageids are all in the form of view-pagename-roomid
// if someone is calling this function, so this is the only case we cover (for now)
const room = Rooms.get(parts[2]);
if (!room) {
this.send(`<h2>Invalid room.</h2>`);
return false;
}
this.room = room;
return room.roomid;
}
send(content: string) {
if (!content.startsWith('|deinit')) {
const roomid = this.room !== Rooms.global ? `[${this.room.roomid}] ` : '';
if (!this.initialized) {
content = `|init|html\n|title|${roomid}${this.title}\n|pagehtml|${content}`;
this.initialized = true;
} else {
content = `|title|${roomid}${this.title}\n|pagehtml|${content}`;
}
}
this.connection.send(`>${this.pageid}\n${content}`);
}
close() {
this.send('|deinit');
}
async resolve(pageid?: string) {
if (pageid) this.pageid = pageid;
const parts = this.pageid.split('-');
let handler: PageHandler | PageTable = Chat.pages;
parts.shift();
while (handler) {
if (typeof handler === 'function') {
let res = await handler.bind(this)(parts, this.user, this.connection);
if (typeof res === 'string') {
this.send(res);
res = undefined;
}
return res;
}
handler = handler[parts.shift() || 'default'];
}
}
}
export class CommandContext extends MessageContext {
message: string;
pmTarget: User | null;
room: Room;
connection: Connection;
cmd: string;
cmdToken: string;
target: string;
fullCmd: string;
broadcasting: boolean;
broadcastToRoom: boolean;
broadcastMessage: string;
targetUser: User | null;
targetUsername: string;
inputUsername: string;
constructor(
options:
{message: string, room: Room, user: User, connection: Connection} &
Partial<{pmTarget: User | null, cmd: string, cmdToken: string, target: string, fullCmd: string}>
) {
super(options.user, options.room && options.room.language ? options.room.language : options.user.language);
this.message = options.message || ``;
// message context
this.pmTarget = options.pmTarget || null;
this.room = options.room || null;
this.connection = options.connection;
// 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;
this.broadcastMessage = '';
// target user
this.targetUser = null;
this.targetUsername = "";
this.inputUsername = "";
}
parse(msg?: string): any {
if (typeof msg === 'string') {
// spawn subcontext
const subcontext = new CommandContext(this);
subcontext.recursionDepth++;
if (subcontext.recursionDepth > MAX_PARSE_RECURSION) {
throw new Error("Too much command recursion");
}
subcontext.message = msg;
return subcontext.parse();
}
let message: any = this.message;
const commandHandler = this.splitCommand(message);
if (this.user.statusType === 'idle') this.user.setStatusType('online');
if (typeof commandHandler === 'function') {
message = this.run(commandHandler);
} else {
if (commandHandler === '!') {
if (this.room === Rooms.global) {
return this.popupReply(`You tried use "${message}" as a global command, but it is not a global command.`);
} else if (this.room) {
return this.popupReply(`You tried to send "${message}" to the room "${this.room.roomid}" but it failed because you were not in that room.`);
}
return this.errorReply(`The command "${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.shouldBroadcast()) {
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.roomid)}|${message}`);
if (this.room && this.room.game && this.room.game.onLogMessage) {
this.room.game.onLogMessage(message, this.user);
}
}
}
this.update();
return message;
}
splitCommand(message = this.message, recursing = false): '!' | undefined | ChatHandler {
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)}`;
}
const 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 = '';
let target = '';
const messageSpaceIndex = message.indexOf(' ');
if (messageSpaceIndex > 0) {
cmd = message.slice(1, messageSpaceIndex).toLowerCase();
target = message.slice(messageSpaceIndex + 1).trim();
} else {
cmd = message.slice(1).toLowerCase();
target = '';
}
if (cmd.endsWith(',')) cmd = cmd.slice(0, -1);
let curCommands: ChatCommands = Chat.commands;
let commandHandler;
let fullCmd = cmd;
do {
if (cmd in curCommands) {
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') {
const 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 as ChatCommands;
}
} while (commandHandler && typeof commandHandler === 'object');
if (!commandHandler && curCommands.default) {
commandHandler = curCommands.default;
if (typeof commandHandler === 'string') {
commandHandler = curCommands[commandHandler];
}
}
if (!commandHandler && !recursing) {
for (const g in Config.groups) {
const groupid = Config.groups[g].id;
if (fullCmd === groupid) {
return this.splitCommand(`/promote ${target}, ${g}`, true);
} else if (fullCmd === 'global' + groupid) {
return this.splitCommand(`/globalpromote ${target}, ${g}`, true);
} else if (fullCmd === 'de' + groupid || fullCmd === 'un' + groupid ||
fullCmd === 'globalde' + groupid || fullCmd === 'deglobal' + groupid) {
return this.splitCommand(`/demote ${target}`, true);
} else if (fullCmd === 'room' + groupid) {
return this.splitCommand(`/roompromote ${target}, ${g}`, true);
} else if (fullCmd === 'forceroom' + groupid) {
return this.splitCommand(`/roompromote !!!${target}, ${g}`, true);
} else if (fullCmd === 'roomde' + groupid || fullCmd === 'deroom' + groupid || fullCmd === 'roomun' + groupid) {
return this.splitCommand(`/roomdemote ${target}`, true);
}
}
}
this.cmd = cmd;
this.cmdToken = cmdToken;
this.target = target;
this.fullCmd = fullCmd;
const requireGlobalCommand = (
this.pmTarget ||
this.room === Rooms.global ||
(this.room && !(this.user.id in this.room.users))
);
if (typeof commandHandler === 'function' && requireGlobalCommand) {
const baseCmd = typeof curCommands[cmd] === 'string' ? curCommands[cmd] : cmd;
if (!curCommands['!' + baseCmd]) {
return '!';
}
}
// @ts-ignore type narrowing handled above
return commandHandler;
}
run(commandHandler: string | {call: (...args: any[]) => any}) {
// type checked above
if (typeof commandHandler === 'string') commandHandler = Chat.commands[commandHandler] as ChatHandler;
let result;
try {
result = commandHandler.call(this, this.target, this.room, this.user, this.connection, this.cmd, this.message);
} catch (err) {
Monitor.crashlog(err, 'A chat command', {
user: this.user.name,
room: this.room && this.room.roomid,
pmTarget: this.pmTarget && this.pmTarget.name,
message: this.message,
});
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;
}
checkFormat(room: BasicChatRoom | null | undefined, user: User, message: string) {
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;
}
checkSlowchat(room: BasicChatRoom | null | undefined, user: User) {
if (!room || !room.slowchat) return true;
if (user.can('broadcast', null, room)) return true;
const lastActiveSeconds = (Date.now() - user.lastMessageTime) / 1000;
if (lastActiveSeconds < room.slowchat) return false;
return true;
}
checkBanwords(room: BasicChatRoom | null | undefined, message: string): boolean {
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 this.checkBanwords(room.parent as ChatRoom, message);
}
checkGameFilter() {
if (!this.room || !this.room.game || !this.room.game.onChatMessage) return false;
return this.room.game.onChatMessage(this.message, this.user);
}
pmTransform(originalMessage: string) {
if (!this.pmTarget && this.room !== Rooms.global) throw new Error(`Not a PM`);
const targetIdentity = this.pmTarget ? this.pmTarget.getIdentity() : '~';
const prefix = `|pm|${this.user.getIdentity()}|${targetIdentity}|`;
return originalMessage.split('\n').map(message => {
if (message.startsWith('||')) {
return prefix + `/text ` + message.slice(2);
} else if (message.startsWith(`|html|`)) {
return prefix + `/raw ` + message.slice(6);
} else if (message.startsWith(`|raw|`)) {
return prefix + `/raw ` + message.slice(5);
} else if (message.startsWith(`|error|`)) {
return prefix + `/error ` + message.slice(7);
} else if (message.startsWith(`|c~|`)) {
return prefix + message.slice(4);
} else if (message.startsWith(`|c|~|/`)) {
return prefix + message.slice(5);
}
return prefix + `/text ` + message;
}).join(`\n`);
}
sendReply(data: string) {
if (this.broadcasting && this.broadcastToRoom) {
// broadcasting
this.add(data);
} else {
// not broadcasting
if (this.pmTarget || this.room === Rooms.global) {
data = this.pmTransform(data);
this.connection.send(data);
} else {
this.connection.sendTo(this.room, data);
}
}
}
errorReply(message: string) {
this.sendReply(`|error|` + message.replace(/\n/g, `\n|error|`));
}
addBox(htmlContent: string) {
this.add(`|html|<div class="infobox">${htmlContent}</div>`);
}
sendReplyBox(htmlContent: string) {
this.sendReply(`|html|<div class="infobox">${htmlContent}</div>`);
}
popupReply(message: string) {
this.connection.popup(message);
}
add(data: string) {
if (this.pmTarget) {
data = this.pmTransform(data);
this.user.send(data);
if (this.pmTarget !== this.user) this.pmTarget.send(data);
return;
}
this.room.add(data);
}
send(data: string) {
if (this.pmTarget) {
data = this.pmTransform(data);
this.user.send(data);
if (this.pmTarget !== this.user) this.pmTarget.send(data);
return;
}
this.room.send(data);
}
sendModCommand(data: string) {
this.room.sendModsByUser(this.user, data);
}
privateModCommand() {
throw new Error(`this.privateModCommand has been renamed to this.privateModAction, which no longer writes to modlog.`);
}
privateModAction(msg: string) {
this.room.sendMods(msg);
this.roomlog(msg);
}
globalModlog(action: string, user: string | User | null, note: string) {
let buf = `(${this.room.roomid}) ${action}: `;
if (user) {
if (typeof user === 'string') {
buf += `[${user}]`;
} else {
const userid = user.getLastId();
buf += `[${userid}]`;
if (user.autoconfirmed && user.autoconfirmed !== userid) buf += ` ac:[${user.autoconfirmed}]`;
const alts = user.getAltUsers(false, true).slice(1).map(alt => alt.getLastId()).join('], [');
if (alts.length) buf += ` alts:[${alts}]`;
buf += ` [${user.latestIp}]`;
}
}
buf += note.replace(/\n/gm, ' ');
Rooms.global.modlog(buf);
if (this.room !== Rooms.global) this.room.modlog(buf);
}
modlog(
action: string,
user: string | User | null = null,
note: string | null = null,
options: Partial<{noalts: any, noip: any}> = {}
) {
let buf = `(${this.room.roomid}) ${action}: `;
if (user) {
if (typeof user === 'string') {
buf += `[${toID(user)}]`;
} else {
const userid = user.getLastId();
buf += `[${userid}]`;
if (!options.noalts) {
if (user.autoconfirmed && user.autoconfirmed !== userid) buf += ` ac:[${user.autoconfirmed}]`;
const alts = user.getAltUsers(false, true).slice(1).map(alt => alt.getLastId()).join('], [');
if (alts.length) buf += ` alts:[${alts}]`;
}
if (!options.noip) buf += ` [${user.latestIp}]`;
}
}
buf += ` by ${this.user.id}`;
if (note) buf += `: ${note.replace(/\n/gm, ' ')}`;
this.room.modlog(buf);
}
roomlog(data: string) {
if (this.pmTarget) return;
this.room.roomlog(data);
}
logEntry() {
throw new Error(`this.logEntry has been renamed to this.roomlog.`);
}
addModCommand() {
throw new Error(`this.addModCommand has been renamed to this.addModAction, which no longer writes to modlog.`);
}
addModAction(msg: string) {
this.room.addByUser(this.user, msg);
}
update() {
if (this.room) this.room.update();
}
filter(message: string, targetUser: User | null = null) {
if (!this.room || this.room.roomid === 'global') return null;
return Chat.filter(this, message, this.user, this.room as GameRoom | ChatRoom, this.connection, targetUser);
}
statusfilter(status: string) {
return Chat.statusfilter(status, this.user);
}
can(permission: string, target: string | User | null = null, room: BasicChatRoom | null = null) {
if (!this.user.can(permission, target, room)) {
this.errorReply(this.cmdToken + this.fullCmd + " - Access denied.");
return false;
}
return true;
}
shouldBroadcast() {
return this.cmdToken === BROADCAST_TOKEN;
}
canBroadcast(ignoreCooldown?: boolean, suppressMessage?: string | null) {
if (!this.broadcasting && this.shouldBroadcast()) {
if (this.room instanceof Rooms.GlobalRoom) {
this.errorReply(`You have no one to broadcast this to.`);
this.errorReply(`To see it for yourself, use: /${this.message.substr(1)}`);
return false;
}
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: /${this.message.substr(1)}`);
return false;
}
// broadcast cooldown
const broadcastMessage = (suppressMessage || this.message).toLowerCase().replace(/[^a-z0-9\s!,]/g, '');
if (!ignoreCooldown && this.room && this.room.lastBroadcast === broadcastMessage &&
this.room.lastBroadcastTime >= Date.now() - BROADCAST_COOLDOWN &&
!this.user.can('bypassall')) {
this.errorReply("You can't broadcast this because it was just broadcasted.");
return false;
}
const message = this.canTalk(suppressMessage || this.message);
if (!message) return false;
// canTalk will only return true with no message
this.message = message as string;
this.broadcastMessage = broadcastMessage;
}
return true;
}
runBroadcast(ignoreCooldown = false, suppressMessage: string | null = null) {
if (this.broadcasting || !this.shouldBroadcast()) {
// Already being broadcast, or the user doesn't intend to broadcast.
return true;
}
if (!this.broadcastMessage) {
// Permission hasn't been checked yet. Do it now.
if (!this.canBroadcast(ignoreCooldown, suppressMessage)) return false;
}
this.broadcasting = true;
if (this.pmTarget) {
this.sendReply('|c~|' + (suppressMessage || this.message));
} else {
this.sendReply('|c|' + this.user.getIdentity(this.room.roomid) + '|' + (suppressMessage || this.message));
}
if (!ignoreCooldown && !this.pmTarget) {
this.room.lastBroadcast = this.broadcastMessage;
this.room.lastBroadcastTime = Date.now();
}
return true;
}
canTalk(message: string, room?: GameRoom | ChatRoom | null, targetUser?: User | null): string | null;
canTalk(message?: null, room?: GameRoom | ChatRoom | null, targetUser?: User | null): true | null;
canTalk(message: string | null = null, room: GameRoom | ChatRoom | null = null, targetUser: User | null = null) {
if (!targetUser && this.pmTarget) {
targetUser = this.pmTarget;
}
if (targetUser) {
room = null;
} else if (!room) {
if (this.room.roomid === 'global') {
this.connection.popup(`Your message could not be sent:\n\n${message}\n\nIt needs to be sent to a user or room.`);
return null;
}
// @ts-ignore excludes GlobalRoom above
room = this.room;
}
const user = this.user;
const connection = this.connection;
if (!user.named) {
connection.popup(this.tr(`You must choose a name before you can talk.`));
return null;
}
if (!user.can('bypassall')) {
const lockType = (user.namelocked ? this.tr(`namelocked`) : user.locked ? this.tr(`locked`) : ``);
const lockExpiration = Punishments.checkLockExpiration(user.namelocked || user.locked);
if (room) {
if (lockType && !room.isHelp) {
this.errorReply(this.tr `You are ${lockType} and can't talk in chat. ${lockExpiration}`);
this.sendReply(`|html|<a href="view-help-request--appeal" class="button">${this.tr("Get help with this")}</a>`);
return null;
}
if (room.isMuted(user)) {
this.errorReply(this.tr(`You are muted and cannot talk in this room.`));
return null;
}
if (room.modchat && !user.authAtLeast(room.modchat, room)) {
if (room.modchat === 'autoconfirmed') {
this.errorReply(this.tr(`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 null;
}
if (room.modchat === 'trusted') {
this.errorReply(this.tr(`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 null;
}
const groupName = Config.groups[room.modchat] && Config.groups[room.modchat].name || room.modchat;
this.errorReply(this.tr `Because moderated chat is set, you must be of rank ${groupName} or higher to speak in this room.`);
return null;
}
if (!(user.id in room.users)) {
connection.popup(`You can't send a message to this room without being in it.`);
return null;
}
}
// TODO: translate these messages. Currently there isn't much of a point since languages are room-dependent, and these PM-related messages aren't
// attached to any rooms. If we ever get to letting users set their own language these messages should also be translated. - Asheviere
if (targetUser) {
if (lockType && !targetUser.can('lock')) {
this.errorReply(`You are ${lockType} and can only private message members of the global moderation team. ${lockExpiration}`);
this.sendReply(`|html|<a href="view-help-request--appeal" class="button">Get help with this</a>`);
return null;
}
if (targetUser.locked && !user.can('lock')) {
this.errorReply(`The user "${targetUser.name}" is locked and cannot be PMed.`);
return null;
}
if (Config.pmmodchat && !user.authAtLeast(Config.pmmodchat) &&
!targetUser.canPromote(user.group, Config.pmmodchat)) {
const groupName = Config.groups[Config.pmmodchat] && Config.groups[Config.pmmodchat].name || Config.pmmodchat;
this.errorReply(`On this server, you must be of rank ${groupName} or higher to PM users.`);
return null;
}
if (targetUser.blockPMs &&
(targetUser.blockPMs === true || !user.authAtLeast(targetUser.blockPMs)) &&
!user.can('lock')) {
Chat.maybeNotifyBlocked('pm', targetUser, user);
if (!targetUser.can('lock')) {
this.errorReply(`This user is blocking private messages right now.`);
return null;
} else {
this.errorReply(`This ${Config.groups[targetUser.group].name} is too busy to answer private messages right now. Please contact a different staff member.`);
this.sendReply(`|html|If you need help, try opening a <a href="view-help-request" class="button">help ticket</a>`);
return null;
}
}
if (user.blockPMs && (user.blockPMs === true
|| !targetUser.authAtLeast(user.blockPMs)) && !targetUser.can('lock')) {
this.errorReply(`You are blocking private messages right now.`);
return null;
}
}
}
if (typeof message !== 'string') return true;
if (!message) {
connection.popup(this.tr("Your message can't be blank."));
return null;
}
let length = message.length;
length += 10 * message.replace(/[^\ufdfd]*/g, '').length;
if (length > MAX_MESSAGE_LENGTH && !user.can('ignorelimits')) {
this.errorReply(this.tr("Your message is too long: ") + message);
return null;
}
// remove zalgo
// tslint:disable-next-line: max-line-length
message = message.replace(/[\u0300-\u036f\u0483-\u0489\u0610-\u0615\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06ED\u0E31\u0E34-\u0E3A\u0E47-\u0E4E]{3,}/g, '');
if (/[\u115f\u1160\u239b-\u23b9]/.test(message)) {
this.errorReply(this.tr("Your message contains banned characters."));
return null;
}
// If the corresponding config option is set, non-AC users cannot send links, except to staff.
if (Config.restrictLinks && !user.autoconfirmed) {
const links = message.match(Chat.linkRegex);
const allLinksWhitelisted = !links || links.every(link => {
link = link.toLowerCase();
const domainMatches = /^(?:http:\/\/|https:\/\/)?(?:[^/]*\.)?([^/.]*\.[^/.]*)\.?($|\/|:)/.exec(link);
const domain = domainMatches && domainMatches[1];
const hostMatches = /^(?:http:\/\/|https:\/\/)?([^/]*[^/.])\.?($|\/|:)/.exec(link);
let host = hostMatches && hostMatches[1];
if (host && host.startsWith('www.')) host = host.slice(4);
if (!domain || !host) return null;
return LINK_WHITELIST.includes(host) || LINK_WHITELIST.includes(`*.${domain}`);
});
if (!allLinksWhitelisted && !(targetUser && targetUser.can('lock') || (room && room.isHelp))) {
this.errorReply("Your account must be autoconfirmed to send links to other users, except for global staff.");
return null;
}
}
if (!this.checkFormat(room, user, message)) {
return null;
}
if (!this.checkSlowchat(room, user)) {
// @ts-ignore ~ The truthiness of room and room.slowchat are evaluated in checkSlowchat
this.errorReply(this.tr `This room has slow-chat enabled. You can only talk once every ${room.slowchat} seconds.`);
return null;
}
if (!this.checkBanwords(room, user.name) && !user.can('bypassall')) {
this.errorReply(this.tr(`Your username contains a phrase banned by this room.`));
return null;
}
if (user.userMessage && (!this.checkBanwords(room, user.userMessage) && !user.can('bypassall'))) {
this.errorReply(this.tr(`Your status message contains a phrase banned by this room.`));
return null;
}
if (!this.checkBanwords(room, message) && !user.can('mute', null, room)) {
this.errorReply(this.tr("Your message contained banned words in this room."));
return null;
}
const gameFilter = this.checkGameFilter();
if (gameFilter && !user.can('bypassall')) {
this.errorReply(gameFilter);
return null;
}
if (room) {
const normalized = message.trim();
if (!user.can('bypassall') && (['help', 'lobby'].includes(room.roomid)) && (normalized === user.lastMessage) &&
((Date.now() - user.lastMessageTime) < MESSAGE_COOLDOWN)) {
this.errorReply(this.tr("You can't send the same message again so soon."));
return null;
}
user.lastMessage = message;
user.lastMessageTime = Date.now();
}
if (room && room.highTraffic &&
toID(message).replace(/[^a-z]+/, '').length < 2
&& !user.can('broadcast', null, room)) {
this.errorReply(
this.tr('Due to this room being a high traffic room, your message must contain at least two letters.')
);
return null;
}
if (Chat.filters.length) {
return Chat.filter(this, message, user, room, connection, targetUser);
}
return message;
}
canEmbedURI(uri: string, isRelative = false) {
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) {
this.errorReply("URIs must begin with 'https://' or 'http://' or 'data:'");
return null;
}
} else {
uri = uri.slice(7);
}
const slashIndex = uri.indexOf('/');
let domain = (slashIndex >= 0 ? uri.slice(0, slashIndex) : uri);
// heuristic that works for all the domains we care about
const secondLastDotIndex = domain.lastIndexOf('.', domain.length - 5);
if (secondLastDotIndex >= 0) domain = domain.slice(secondLastDotIndex + 1);
const 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') {
this.errorReply("Please don't use URL shorteners.");
return null;
}
// unknown URI, allow HTTP to be safe
return 'http://' + uri;
}
canHTML(htmlContent: string | null) {
htmlContent = ('' + (htmlContent || '')).trim();
if (!htmlContent) return '';
const images = /<img\b[^<>]*/ig;
let match;
// tslint:disable-next-line: no-conditional-assignment tslint doesn't support allowing ((assignment))
while ((match = images.exec(htmlContent))) {
if (this.room.isPersonal && !this.user.can('announce')) {
this.errorReply("Images are not allowed in personal rooms.");
return null;
}
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 null;
}
const srcMatch = /src\s*=\s*"?([^ "]+)(\s*")?/i.exec(match[0]);
if (srcMatch) {
const uri = this.canEmbedURI(srcMatch[1], true);
if (!uri) return null;
htmlContent = `${htmlContent.slice(0, match.index + srcMatch.index)}src="${uri}"${htmlContent.slice(match.index + srcMatch.index + srcMatch[0].length)}`;
// lastIndex is inaccurate since html was changed
images.lastIndex = match.index + 11;
}
}
if ((this.room.isPersonal || this.room.isPrivate === true)
&& !this.user.can('lock') && htmlContent.replace(/\s*style\s*=\s*"?[^"]*"\s*>/g, '>').match(/<button[^>]/)) {
this.errorReply('You do not have permission to use scripted buttons in HTML.');
this.errorReply('If you just want to link to a room, you can do this: <a href="/roomid"><button>button contents</button></a>');
return null;
}
if (/>here.?</i.test(htmlContent) || /click here/i.test(htmlContent)) {
this.errorReply('Do not use "click here"');
return null;
}
// check for mismatched tags
// tslint:disable-next-line: max-line-length
const tags = htmlContent.toLowerCase().match(/<\/?(div|a|button|b|strong|em|i|u|center|font|marquee|blink|details|summary|code|table|td|tr|style|script)\b/g);
if (tags) {
const stack = [];
for (const tag of tags) {
if (tag.charAt(1) === '/') {
if (!stack.length) {
this.errorReply("Extraneous </" + tag.substr(2) + "> without an opening tag.");
return null;
}
if (tag.substr(2) !== stack.pop()) {
this.errorReply("Missing </" + tag.substr(2) + "> or it's in the wrong place.");
return null;
}
} else {
stack.push(tag.substr(1));
}
}
if (stack.length) {
this.errorReply("Missing </" + stack.pop() + ">.");
return null;
}
}
return htmlContent;
}
targetUserOrSelf(target: string, exactName: boolean) {
if (!target) {
this.targetUsername = this.user.name;
this.inputUsername = this.user.name;
return this.user;
}
this.splitTarget(target, exactName);
return this.targetUser;
}
/**
* Given a message in the form "USERNAME" or "USERNAME, MORE", splits
* it apart:
*
* - `this.targetUser` will be the User corresponding to USERNAME
* (or null, if not found)
*
* - `this.inputUsername` will be the text of USERNAME, unmodified
*
* - `this.targetUsername` will be the username, if found, or
* this.inputUsername otherwise
*
* - and the text of MORE will be returned (empty string, if the
* message has no comma)
*
*/
splitTarget(target: string, exactName = false) {
const [name, rest] = this.splitOne(target);
this.targetUser = Users.get(name, exactName);
this.inputUsername = name.trim();
this.targetUsername = this.targetUser ? this.targetUser.name : this.inputUsername;
return rest;
}
}
export const Chat = new class {
constructor() {
void this.loadTranslations();
}
readonly multiLinePattern = new PatternTester();
/*********************************************************
* Load command files
*********************************************************/
baseCommands: ChatCommands = undefined!;
commands: ChatCommands = undefined!;
basePages: PageTable = undefined!;
pages: PageTable = undefined!;
readonly destroyHandlers: (() => void)[] = [];
roomSettings: SettingsHandler[] = [];
/*********************************************************
* Load chat filters
*********************************************************/
readonly filters: ChatFilter[] = [];
filter(
context: CommandContext,
message: string,
user: User,
room: GameRoom | ChatRoom | null,
connection: Connection,
targetUser: User | null = 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 curFilter of Chat.filters) {
const output = curFilter.call(context, message, user, room, connection, targetUser, originalMessage);
if (output === false) return null;
if (!output && output !== undefined) return output;
if (output !== undefined) message = output;
}
return message;
}
readonly namefilters: NameFilter[] = [];
namefilter(name: string, user: 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
// tslint:disable-next-line: max-line-length
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 '';
// url
// tslint:disable-next-line: max-line-length
if (/[a-z0-9]\.(com|net|org|us|uk|co|gg|tk|ml|gq|ga|xxx|download|stream)\b/i.test(name)) name = name.replace(/\./g, '');
// Limit the amount of symbols allowed in usernames to 4 maximum, and disallow (R) and (C) from being used in the middle of names.
// tslint:disable-next-line: max-line-length
const nameSymbols = name.replace(/[^\u00A1-\u00BF\u00D7\u00F7\u02B9-\u0362\u2012-\u2027\u2030-\u205E\u2050-\u205F\u2090-\u23FA\u2500-\u2BD1]+/g, '');
// \u00ae\u00a9 (R) (C)
// tslint:disable-next-line: max-line-length
if (nameSymbols.length > 4 || /[^a-z0-9][a-z0-9][^a-z0-9]/.test(name.toLowerCase() + ' ') || /[\u00ae\u00a9].*[a-zA-Z0-9]/.test(name)) name = name.replace(/[\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, '').replace(/[^A-Za-z0-9]{2,}/g, ' ').trim();
}
name = name.replace(/^[^A-Za-z0-9]+/, ""); // remove symbols from start
name = name.replace(/@/g, ""); // Remove @ as this is used to indicate status messages
// 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 curFilter of Chat.namefilters) {
name = curFilter(name, user);
if (!name) return '';
}
return name;
}
readonly hostfilters: HostFilter[] = [];
hostfilter(host: string, user: User, connection: Connection, hostType: string) {
for (const curFilter of Chat.hostfilters) {
curFilter(host, user, connection, hostType);
}
}
readonly loginfilters: LoginFilter[] = [];
loginfilter(user: User, oldUser: User | null, usertype: string) {
for (const curFilter of Chat.loginfilters) {
curFilter(user, oldUser, usertype);
}
}
readonly nicknamefilters: NameFilter[] = [];
nicknamefilter(nickname: string, user: User) {
for (const curFilter of Chat.nicknamefilters) {
nickname = curFilter(nickname, user);
if (!nickname) return '';
}
return nickname;
}
readonly statusfilters: StatusFilter[] = [];
statusfilter(status: string, user: User) {
status = status.replace(/\|/g, '');
for (const curFilter of Chat.statusfilters) {
status = curFilter(status, user);
if (!status) return '';
}
return status;
}
/*********************************************************
* Translations
*********************************************************/
/** language id -> language name */
readonly languages = new Map<string, string>();
/** language id -> (english string -> translated string) */
readonly translations = new Map<string, Map<string, [string, string[], string[]]>>();
loadTranslations() {
return FS(TRANSLATION_DIRECTORY).readdir().then(files => {
// ensure that english is the first entry when we iterate over Chat.languages
Chat.languages.set('english', 'English');
for (const fname of files) {
if (!fname.endsWith('.json')) continue;
interface TRStrings {
[k: string]: string;
}
const content: {name: string, strings: TRStrings} = require(`../${TRANSLATION_DIRECTORY}${fname}`);
const id = fname.slice(0, -5);
Chat.languages.set(id, content.name || "Unknown Language");
Chat.translations.set(id, new Map());
if (content.strings) {
for (const key in content.strings) {
const keyLabels: string[] = [];
const valLabels: string[] = [];
const newKey = key.replace(/\${.+?}/g, str => {
keyLabels.push(str);
return '${}';
}).replace(/\[TN: ?.+?\]/g, '');
const val = content.strings[key].replace(/\${.+?}/g, (str: string) => {
valLabels.push(str);
return '${}';
}).replace(/\[TN: ?.+?\]/g, '');
Chat.translations.get(id)!.set(newKey, [val, keyLabels, valLabels]);
}
}
}
});
}
tr(language: string | null): (fStrings: TemplateStringsArray | string, ...fKeys: any) => string;
tr(language: string | null, strings: TemplateStringsArray | string, ...keys: any[]): string;
tr(language: string | null, strings: TemplateStringsArray | string = '', ...keys: any[]) {
if (!language) language = 'english';
language = toID(language);
if (!Chat.translations.has(language)) throw new Error(`Trying to translate to a nonexistent language: ${language}`);
if (!strings.length) {
return ((fStrings: TemplateStringsArray | string, ...fKeys: any) => {
return Chat.tr(language, fStrings, ...fKeys);
});
}
// If strings is an array (normally the case), combine before translating.
const trString = Array.isArray(strings) ? strings.join('${}') : strings as string;
const entry = Chat.translations.get(language)!.get(trString);
let [translated, keyLabels, valLabels] = entry || ["", [], []];
if (!translated) translated = trString;
// Replace the gaps in the template string
if (keys.length) {
let reconstructed = '';
const left: (string | null)[] = keyLabels.slice();
for (const [i, str] of translated.split('${}').entries()) {
reconstructed += str;
if (keys[i]) {
let index = left.indexOf(valLabels[i]);
if (index < 0) {
index = left.findIndex(val => !!val);
}
if (index < 0) index = i;
reconstructed += keys[index];
left[index] = null;
}
}
translated = reconstructed;
}
return translated;
}
readonly MessageContext = MessageContext;
readonly CommandContext = CommandContext;
readonly PageContext = PageContext;
/**
* Command parser
*
* Usage:
* Chat.parse(message, room, user, connection)
*
* Parses the message. If it's a command, the command is executed, if
* not, it's displayed directly in the room.
*
* Examples:
* Chat.parse("/join lobby", room, user, connection)
* will make the user join the lobby.
*
* Chat.parse("Hi, guys!", room, user, connection)
* will return "Hi, guys!" if the user isn't muted, or
* if he's muted, will warn him that he's muted.
*
* The return value is the return value of the command handler, if any,
* or the message, if there wasn't a command. This value could be a success
* or failure (few commands report these) or a Promise for when the command
* is done executing, if it's not currently done.
*
* @param message - the message the user is trying to say
* @param room - the room the user is trying to say it in
* @param user - the user that sent the message
* @param connection - the connection the user sent the message from
*/
parse(message: string, room: Room, user: User, connection: Connection) {
Chat.loadPlugins();
const context = new CommandContext({message, room, user, connection});
return context.parse();
}
sendPM(message: string, user: User, pmTarget: User, onlyRecipient: User | null = null) {
const buf = `|pm|${user.getIdentity()}|${pmTarget.getIdentity()}|${message}`;
if (onlyRecipient) return onlyRecipient.send(buf);
user.send(buf);
if (pmTarget !== user) pmTarget.send(buf);
pmTarget.lastPM = user.id;
user.lastPM = pmTarget.id;
}
packageData: AnyObject = {};
uncacheTree(root: string) {
let toUncache = [require.resolve('../' + root)];
do {
const newuncache: string[] = [];
for (const target of toUncache) {
if (require.cache[target]) {
// cachedModule
const children: {id: string}[] = require.cache[target].children;
newuncache.push(
...(children
.filter(cachedModule => !cachedModule.id.endsWith('.node'))
.map(cachedModule => cachedModule.id))
);
delete require.cache[target];
}
}
toUncache = newuncache;
} while (toUncache.length > 0);
}
uncacheDir(root: string) {
const absoluteRoot = FS(root).path;
for (const key in require.cache) {
if (key.startsWith(absoluteRoot)) {
delete require.cache[key];
}
}
}
uncache(path: string) {
const absolutePath = require.resolve('../' + path);
delete require.cache[absolutePath];
}
loadPlugin(file: string) {
let plugin;
if (file.endsWith('.ts')) {
plugin = require(`./${file.slice(0, -3)}`);
} else if (file.endsWith('.js')) {
// Switch to server/ because we'll be in .server-dist/ after this file is compiled
plugin = require(`../server/${file}`);
} else {
return;
}
this.loadPluginData(plugin);
}
loadPluginData(plugin: AnyObject) {
if (plugin.commands) Object.assign(Chat.commands, plugin.commands);
if (plugin.pages) Object.assign(Chat.pages, plugin.pages);
if (plugin.destroy) Chat.destroyHandlers.push(plugin.destroy);
if (plugin.roomSettings) {
if (!Array.isArray(plugin.roomSettings)) plugin.roomSettings = [plugin.roomSettings];
Chat.roomSettings = Chat.roomSettings.concat(plugin.roomSettings);
}
if (plugin.chatfilter) Chat.filters.push(plugin.chatfilter);
if (plugin.namefilter) Chat.namefilters.push(plugin.namefilter);
if (plugin.hostfilter) Chat.hostfilters.push(plugin.hostfilter);
if (plugin.loginfilter) Chat.loginfilters.push(plugin.loginfilter);
if (plugin.nicknamefilter) Chat.nicknamefilters.push(plugin.nicknamefilter);
if (plugin.statusfilter) Chat.statusfilters.push(plugin.statusfilter);
}
loadPlugins() {
if (Chat.commands) return;
void FS('package.json').readIfExists().then(data => {
if (data) Chat.packageData = JSON.parse(data);
});
// Install plug-in commands and chat filters
// All resulting filenames will be relative to basePath
const getFiles = (basePath: string, path: string): string[] => {
const filesInThisDir = FS(`${basePath}/${path}`).readdirSync();
let allFiles: string[] = [];
for (const file of filesInThisDir) {
const fileWithPath = path + (path ? '/' : '') + file;
if (FS(`${basePath}/${fileWithPath}`).isDirectorySync()) {
if (file.startsWith('.')) continue;
allFiles = allFiles.concat(getFiles(basePath, fileWithPath));
} else {
allFiles.push(fileWithPath);
}
}
return allFiles;
};
Chat.commands = Object.create(null);
Chat.pages = Object.create(null);
const coreFiles = FS('server/chat-commands').readdirSync();
for (const file of coreFiles) {
this.loadPlugin(`chat-commands/${file}`);
}
Chat.baseCommands = Chat.commands;
Chat.basePages = Chat.pages;
Chat.commands = Object.assign(Object.create(null), Chat.baseCommands);
Chat.pages = Object.assign(Object.create(null), Chat.basePages);
// Load filters from Config
this.loadPluginData(Config);
this.loadPluginData(Tournaments);
let files = FS('server/chat-plugins').readdirSync();
try {
if (FS('server/chat-plugins/private').isDirectorySync()) {
files = files.concat(getFiles('server/chat-plugins', 'private'));
}
} catch (err) {
if (err.code !== 'ENOENT') throw err;
}
for (const file of files) {
this.loadPlugin(`chat-plugins/${file}`);
}
}
destroy() {
for (const handler of Chat.destroyHandlers) {
handler();
}
}
/**
* Escapes HTML in a string.
*/
escapeHTML(str: string) {
if (!str) return '';
return ('' + str)
.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&apos;')
.replace(/\//g, '&#x2f;');
}
/**
* Strips HTML from a string.
*/
stripHTML(htmlContent: string) {
if (!htmlContent) return '';
return htmlContent.replace(/<[^>]*>/g, '');
}
/**
* Template string tag function for escaping HTML
*/
html(strings: TemplateStringsArray, ...args: any) {
let buf = strings[0];
let i = 0;
while (i < args.length) {
buf += this.escapeHTML(args[i]);
buf += strings[++i];
}
return buf;
}
/**
* Returns singular (defaulting to '') if num is 1, or plural
* (defaulting to 's') otherwise. Helper function for pluralizing
* words.
*/
plural(num: any, pluralSuffix = 's', singular = '') {
if (num && typeof num.length === 'number') {
num = num.length;
} else if (num && typeof num.size === 'number') {
num = num.size;
} else {
num = Number(num);
}
return (num !== 1 ? pluralSuffix : singular);
}
/**
* Counts the thing passed.
*
* Chat.count(2, "days") === "2 days"
* Chat.count(1, "days") === "1 day"
* Chat.count(["foo"], "things are") === "1 thing is"
*
*/
count(num: any, pluralSuffix: string, singular = "") {
if (num && typeof num.length === 'number') {
num = num.length;
} else if (num && typeof num.size === 'number') {
num = num.size;
} else {
num = Number(num);
}
if (!singular) {
if (pluralSuffix.endsWith("s")) {
singular = pluralSuffix.slice(0, -1);
} else if (pluralSuffix.endsWith("s have")) {
singular = pluralSuffix.slice(0, -6) + " has";
} else if (pluralSuffix.endsWith("s were")) {
singular = pluralSuffix.slice(0, -6) + " was";
}
}
const space = singular.startsWith('<') ? '' : ' ';
return `${num}${space}${num > 1 ? pluralSuffix : singular}`;
}
/**
* Like string.split(delimiter), but only recognizes the first `limit`
* delimiters (default 1).
*
* `"1 2 3 4".split(" ", 2) => ["1", "2"]`
*
* `Chat.splitFirst("1 2 3 4", " ", 1) => ["1", "2 3 4"]`
*
* Returns an array of length exactly limit + 1.
*
*/
splitFirst(str: string, delimiter: string, limit = 1) {
const splitStr: string[] = [];
while (splitStr.length < limit) {
const delimiterIndex = str.indexOf(delimiter);
if (delimiterIndex >= 0) {
splitStr.push(str.slice(0, delimiterIndex));
str = str.slice(delimiterIndex + delimiter.length);
} else {
splitStr.push(str);
str = '';
}
}
splitStr.push(str);
return splitStr;
}
/**
* Returns a timestamp in the form {yyyy}-{MM}-{dd} {hh}:{mm}:{ss}.
*
* options.human = true will reports hours human-readable
*/
toTimestamp(date: Date, options: {human?: any} = {}) {
const human = options.human;
let parts: any[] = [
date.getFullYear(), date.getMonth() + 1, date.getDate(),
date.getHours(), date.getMinutes(), date.getSeconds(),
];
if (human) {
parts.push(parts[3] >= 12 ? 'pm' : 'am');
parts[3] = parts[3] % 12 || 12;
}
parts = parts.map(val => val < 10 ? '0' + val : '' + val);
return parts.slice(0, 3).join("-") + " " + parts.slice(3, human ? 5 : 6).join(":") + (human ? "" + parts[6] : "");
}
/**
* Takes a number of milliseconds, and reports the duration in English: hours, minutes, etc.
*
* options.hhmmss = true will instead report the duration in 00:00:00 format
*
*/
toDurationString(val: number, options: {hhmmss?: any, precision?: number} = {}) {
// TODO: replace by Intl.DurationFormat or equivalent when it becomes available (ECMA-402)
// https://github.com/tc39/ecma402/issues/47
const date = new Date(+val);
const parts = [
date.getUTCFullYear() - 1970, date.getUTCMonth(), date.getUTCDate() - 1,
date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(),
];
const roundingBoundaries = [6, 15, 12, 30, 30];
const unitNames = ["second", "minute", "hour", "day", "month", "year"];
const positiveIndex = parts.findIndex(elem => elem > 0);
const precision = (options && options.precision ? options.precision : parts.length);
if (options && options.hhmmss) {
const str = parts.slice(positiveIndex).map(value => value < 10 ? "0" + value : "" + value).join(":");
return str.length === 2 ? "00:" + str : str;
}
// round least significant displayed unit
if (positiveIndex + precision < parts.length && precision > 0 && positiveIndex >= 0) {
if (parts[positiveIndex + precision] >= roundingBoundaries[positiveIndex + precision - 1]) {
parts[positiveIndex + precision - 1]++;
}
}
return parts
.slice(positiveIndex)
.reverse()
.map((value, index) => value ? value + " " + unitNames[index] + (value > 1 ? "s" : "") : "")
.reverse()
.slice(0, precision)
.join(" ")
.trim();
}
/**
* Takes an array and turns it into a sentence string by adding commas and the word "and"
*/
toListString(arr: string[]) {
if (!arr.length) return '';
if (arr.length === 1) return arr[0];
if (arr.length === 2) return `${arr[0]} and ${arr[1]}`;
return `${arr.slice(0, -1).join(", ")}, and ${arr.slice(-1)[0]}`;
}
/**
* Takes an array and turns it into a sentence string by adding commas and the word "or"
*/
toOrList(arr: string[]) {
if (!arr.length) return '';
if (arr.length === 1) return arr[0];
if (arr.length === 2) return `${arr[0]} or ${arr[1]}`;
return `${arr.slice(0, -1).join(", ")}, or ${arr.slice(-1)[0]}`;
}
collapseLineBreaksHTML(htmlContent: string) {
htmlContent = htmlContent.replace(/<[^>]*>/g, tag => tag.replace(/\n/g, ' '));
htmlContent = htmlContent.replace(/\n/g, '&#10;');
return htmlContent;
}
getDataPokemonHTML(template: Template, gen = 7, tier = '') {
if (typeof template === 'string') template = Object.assign({}, Dex.getTemplate(template));
let buf = '<li class="result">';
buf += '<span class="col numcol">' + (tier || template.tier) + '</span> ';
buf += `<span class="col iconcol"><psicon pokemon="${template.id}"/></span> `;
buf += `<span class="col pokemonnamecol" style="white-space:nowrap"><a href="https://${Config.routes.dex}/pokemon/${template.id}" target="_blank">${template.species}</a></span> `;
buf += '<span class="col typecol">';
if (template.types) {
for (const type of template.types) {
buf += `<img src="https://${Config.routes.client}/sprites/types/${type}.png" alt="${type}" height="14" width="32">`;
}
}
buf += '</span> ';
if (gen >= 3) {
buf += '<span style="float:left;min-height:26px">';
if (template.abilities['1'] && (gen >= 4 || Dex.getAbility(template.abilities['1']).gen === 3)) {
buf += '<span class="col twoabilitycol">' + template.abilities['0'] + '<br />' + template.abilities['1'] + '</span>';
} else {
buf += '<span class="col abilitycol">' + template.abilities['0'] + '</span>';
}
if (template.abilities['H'] && template.abilities['S']) {
buf += '<span class="col twoabilitycol' + (template.unreleasedHidden ? ' unreleasedhacol' : '') + '"><em>' + template.abilities['H'] + '<br />(' + template.abilities['S'] + ')</em></span>';
} else if (template.abilities['H']) {
buf += '<span class="col abilitycol' + (template.unreleasedHidden ? ' unreleasedhacol' : '') + '"><em>' + template.abilities['H'] + '</em></span>';
} else if (template.abilities['S']) {
// special case for Zygarde
buf += '<span class="col abilitycol"><em>(' + template.abilities['S'] + ')</em></span>';
} else {
buf += '<span class="col abilitycol"></span>';
}
buf += '</span>';
}
let bst = 0;
for (const baseStat of Object.values(template.baseStats)) {
bst += baseStat;
}
buf += '<span style="float:left;min-height:26px">';
buf += '<span class="col statcol"><em>HP</em><br />' + template.baseStats.hp + '</span> ';
buf += '<span class="col statcol"><em>Atk</em><br />' + template.baseStats.atk + '</span> ';
buf += '<span class="col statcol"><em>Def</em><br />' + template.baseStats.def + '</span> ';
if (gen <= 1) {
bst -= template.baseStats.spd;
buf += '<span class="col statcol"><em>Spc</em><br />' + template.baseStats.spa + '</span> ';
} else {
buf += '<span class="col statcol"><em>SpA</em><br />' + template.baseStats.spa + '</span> ';
buf += '<span class="col statcol"><em>SpD</em><br />' + template.baseStats.spd + '</span> ';
}
buf += '<span class="col statcol"><em>Spe</em><br />' + template.baseStats.spe + '</span> ';
buf += '<span class="col bstcol"><em>BST<br />' + bst + '</em></span> ';
buf += '</span>';
buf += '</li>';
return `<div class="message"><ul class="utilichart">${buf}<li style="clear:both"></li></ul></div>`;
}
getDataMoveHTML(move: Move) {
if (typeof move === 'string') move = Object.assign({}, Dex.getMove(move));
let buf = `<ul class="utilichart"><li class="result">`;
buf += `<span class="col movenamecol"><a href="https://${Config.routes.dex}/moves/${move.id}">${move.name}</a></span> `;
// encoding is important for the ??? type icon
const encodedMoveType = encodeURIComponent(move.type);
buf += `<span class="col typecol"><img src="//${Config.routes.client}/sprites/types/${encodedMoveType}.png" alt="${move.type}" width="32" height="14">`;
buf += `<img src="//${Config.routes.client}/sprites/categories/${move.category}.png" alt="${move.category}" width="32" height="14"></span> `;
// tslint:disable-next-line: max-line-length
if (move.basePower) buf += `<span class="col labelcol"><em>Power</em><br>${typeof move.basePower === 'number' ? move.basePower : '—'}</span> `;
buf += `<span class="col widelabelcol"><em>Accuracy</em><br>${typeof move.accuracy === 'number' ? (move.accuracy + '%') : '—'}</span> `;
const basePP = move.pp || 1;
const pp = Math.floor(move.noPPBoosts ? basePP : basePP * 8 / 5);
buf += `<span class="col pplabelcol"><em>PP</em><br>${pp}</span> `;
buf += `<span class="col movedesccol">${move.shortDesc || move.desc}</span> `;
buf += `</li><li style="clear:both"></li></ul>`;
return buf;
}
getDataAbilityHTML(ability: Ability) {
if (typeof ability === 'string') ability = Object.assign({}, Dex.getAbility(ability));
let buf = `<ul class="utilichart"><li class="result">`;
buf += `<span class="col namecol"><a href="https://${Config.routes.dex}/abilities/${ability.id}">${ability.name}</a></span> `;
buf += `<span class="col abilitydesccol">${ability.shortDesc || ability.desc}</span> `;
buf += `</li><li style="clear:both"></li></ul>`;
return buf;
}
getDataItemHTML(item: string | Item) {
if (typeof item === 'string') item = Object.assign({}, Dex.getItem(item));
let buf = `<ul class="utilichart"><li class="result">`;
buf += `<span class="col itemiconcol"><psicon item="${item.id}"></span> <span class="col namecol"><a href="https://${Config.routes.dex}/items/${item.id}">${item.name}</a></span> `;
buf += `<span class="col itemdesccol">${item.shortDesc || item.desc}</span> `;
buf += `</li><li style="clear:both"></li></ul>`;
return buf;
}
/**
* Visualizes eval output in a slightly more readable form
*/
stringify(value: any, depth = 0): string {
if (value === undefined) return `undefined`;
if (value === null) return `null`;
if (typeof value === 'number' || typeof value === 'boolean') {
return `${value}`;
}
if (typeof value === 'string') {
return `"${value}"`; // NOT ESCAPED
}
if (typeof value === 'symbol') {
return value.toString();
}
if (Array.isArray(value)) {
if (depth > 10) return `[array]`;
return `[` + value.map(elem => Chat.stringify(elem, depth + 1)).join(`, `) + `]`;
}
if (value instanceof RegExp || value instanceof Date || value instanceof Function) {
if (depth && value instanceof Function) return `Function`;
return `${value}`;
}
let constructor = '';
if (value.constructor && value.constructor.name && typeof value.constructor.name === 'string') {
constructor = value.constructor.name;
if (constructor === 'Object') constructor = '';
} else {
constructor = 'null';
}
if (value.toString) {
try {
const stringValue = value.toString();
if (typeof stringValue === 'string' &&
stringValue !== '[object Object]' &&
stringValue !== `[object ${constructor}]`) {
return `${constructor}(${stringValue})`;
}
} catch (e) {}
}
let buf = '';
for (const key in value) {
if (!Object.prototype.hasOwnProperty.call(value, key)) continue;
if (depth > 2 || (depth && constructor)) {
buf = '...';
break;
}
if (buf) buf += `, `;
let displayedKey = key;
if (!/^[A-Za-z0-9_$]+$/.test(key)) displayedKey = JSON.stringify(key);
buf += `${displayedKey}: ` + Chat.stringify(value[key], depth + 1);
}
if (constructor && !buf && constructor !== 'null') return constructor;
return `${constructor}{${buf}}`;
}
/**
* Gets the dimension of the image at url. Returns 0x0 if the image isn't found, as well as the relevant error.
*/
getImageDimensions(url: string): Promise<{height: number, width: number, err?: Error}> {
return new Promise(resolve => {
probe(url).then(dimensions => resolve(dimensions), (err: Error) => resolve({height: 0, width: 0, err}));
});
}
/**
* Generates dimensions to fit an image at url into a maximum size of maxWidth x maxHeight,
* preserving aspect ratio.
*/
async fitImage(url: string, maxHeight = 300, maxWidth = 300) {
const {height, width} = await Chat.getImageDimensions(url);
if (width <= maxWidth && height <= maxHeight) return [width, height];
let ratio;
if (height * (maxWidth / maxHeight) > width) {
ratio = maxHeight / height;
} else {
ratio = maxWidth / width;
}
return [Math.round(width * ratio), Math.round(height * ratio)];
}
/**
* Notifies a targetUser that a user was blocked from reaching them due to a setting they have enabled.
*/
maybeNotifyBlocked(blocked: 'pm' | 'challenge', targetUser: User, user: User) {
const prefix = `|pm|~|${targetUser.getIdentity()}|/nonotify `;
const options = 'or change it in the <button name="openOptions" class="subtle">Options</button> menu in the upper right.';
if (blocked === 'pm') {
if (!targetUser.blockPMsNotified) {
targetUser.send(`${prefix}The user '${user.name}' attempted to PM you but was blocked. To enable PMs, use /unblockpms ${options}`);
targetUser.blockPMsNotified = true;
}
} else if (blocked === 'challenge') {
if (!targetUser.blockChallengesNotified) {
targetUser.send(`${prefix}The user '${user.name}' attempted to challenge you to a battle but was blocked. To enable challenges, use /unblockchallenges ${options}`);
targetUser.blockChallengesNotified = true;
}
}
}
readonly formatText = formatText;
readonly linkRegex = linkRegex;
readonly stripFormatting = stripFormatting;
readonly filterWords: {[k: string]: FilterWord[]} = {};
readonly monitors: {[k: string]: Monitor} = {};
readonly namefilterwhitelist = new Map<string, string>();
/**
* Inappropriate userid : number of times the name has been forcerenamed
*/
readonly forceRenames = new Map<ID, number>();
registerMonitor(id: string, entry: Monitor) {
if (!Chat.filterWords[id]) Chat.filterWords[id] = [];
Chat.monitors[id] = entry;
}
resolvePage(pageid: string, user: User, connection: Connection) {
return (new PageContext({pageid, user, connection})).resolve();
}
};
/**
* Used by ChatMonitor.
*/
export type FilterWord = [RegExp, string, string, string | null, number];
export type MonitorHandler = (
this: CommandContext,
line: FilterWord,
room: ChatRoom | GameRoom | null,
user: User,
message: string,
lcMessage: string,
isStaff: boolean
) => string | false | undefined;
export interface Monitor {
location: string;
punishment: string;
label: string;
condition?: string;
monitor?: MonitorHandler;
}