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slowmode.ts
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slowmode.ts
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import type { ExtendedContext } from "../typings/context";
import type { User } from "telegraf/typings/telegram-types";
import Telegraf = require("telegraf");
import HtmlUtils = require("../utils/html");
import TgUtils = require("../utils/tg");
import Log = require("../utils/log");
import UserStore = require('../stores/user');
import Files = require('fs');
let settings = {
active: true, // If True, Bot will mute users who post too many messages too quickly.
mutingTime: 300, // Time a slowed user will be muted for in seconds, 5 minutes (300 seconds) by default.
postingInterval: 1, // Time between messages to count as a penalty in seconds, 1 by default.
maxMessages: 10 // Max amount of messages allowed within the posting interval, 10 by default.
}
// Permissions for muted user.
const mutedOptions = {
can_send_messages: false,
can_send_media_messages: false,
can_send_polls: false,
can_send_other_messages: false,
can_add_web_page_previews: false,
can_change_info: false,
can_invite_users: false,
can_pin_messages: false
}
const { Composer: C } = Telegraf;
const { html } = HtmlUtils;
const { link } = TgUtils;
const { logError } = Log;
const { getAdmins } = UserStore;
const fs = Files;
type Slow = {
user: User;
chat: string;
messageCounter: number;
lastMessageDate: Date;
};
const slowing = (
ctx: ExtendedContext,
x: User,
): Slow => {
const s = {
user: x,
chat: "",
messageCounter: 0,
lastMessageDate: new Date(),
};
return s;
};
const slowList: Slow[] = [];
const adminList: number[] = [];
const settingsFile = "./plugins/slowmode.json";
// If a settings file exists, read it and update our settings with it.
fs.access(settingsFile, fs.F_OK, (err) => {
if (err) {
logError("[slowmode] " + err.message);
updateSettings();
logError("[slowmode] Creating new settings file.");
return;
}
fs.readFile(settingsFile, "utf-8", (err, data) => {
if (err) {
logError("[slowmode] " + err.message);
return;
}
settings = JSON.parse(data.toString());
});
});
// Update the settings file with our current settings object.
function updateSettings() {
const data = JSON.stringify(settings);
fs.writeFile(settingsFile, data, (err) => {
if (err) {
logError("[slowmode] " + err.message);
return;
}
});
}
export = C.mount("message", async (ctx: ExtendedContext, next) => {
// Populate the list of Admins
if (adminList.length < 1) {
const admins = await getAdmins();
//logError(admins);
for (let i = 0; i < admins.length; i++) {
adminList.push(admins[i].id);
}
//logError(adminList);
}
//Plugin Commands.
if (ctx.message?.entities?.[0].type === "bot_command") {
const text = ctx.message?.text;
const match = text.match(/^\/([^\s]+)\s?(.+)?/);
let args = [];
let command = "";
if (match !== null) {
if (match[1]) {
command = match[1];
}
if (match[2]) {
args = match[2].split(' ');
}
}
// Command arguments (/slowmode).
if (command === "slowmode") {
if (adminList.indexOf(ctx.from?.id) >= 0) {
if (args !== null) {
if (args[0] === "on") { // Enable Slow Mode (/slowmode on).
settings.active = true;
updateSettings();
ctx.replyWithHTML(
html`Slow Mode is now On.`
);
} else if (args[0] === "off") { // Disable Slow Mode (/slowmode off).
settings.active = false;
updateSettings();
ctx.replyWithHTML(
html`Slow Mode is now Off.`
);
} else if (args[0] === "mute") { // Change muting time (/slowmode mute <integer bigger or equal to 300>).
if (parseInt(args[1]) >= 300) {
settings.mutingTime = parseInt(args[1]);
updateSettings();
ctx.replyWithHTML(
html`Slow Mode muting time is now ${settings.mutingTime}.`
);
} else if (parseInt(args[1]) < 300) {
ctx.replyWithHTML(
html`Slow Mode muting time cannot be lower than 300 seconds (5 minutes).`
);
} else {
ctx.replyWithHTML(
html`Slow Mode muting time value is invalid.`
);
}
} else if (args[0] === "interval") { // Change interval time (/slowmode interval <integer bigger or equal to 1>).
if (parseInt(args[1]) >= 1) {
settings.postingInterval = parseInt(args[1]);
updateSettings();
ctx.replyWithHTML(
html`Slow Mode interval is now ${settings.postingInterval}.`
);
} else if (parseInt(args[1]) < 1) {
ctx.replyWithHTML(
html`Slow Mode interval cannot be lower than 1 second.`
);
} else {
ctx.replyWithHTML(
html`Slow Mode interval value is invalid.`
);
}
} else if (args[0] === "messages") { // Change max messages (/slowmode messages <integer bigger or equal to 5>).
if (parseInt(args[1]) >= 5) {
settings.maxMessages = parseInt(args[1]);
updateSettings();
ctx.replyWithHTML(
html`Slow Mode max messages is now ${settings.maxMessages}.`
);
} else if (parseInt(args[1]) < 5) {
ctx.replyWithHTML(
html`Slow Mode max messages cannot be lower than 5.`
);
} else {
ctx.replyWithHTML(
html`Slow Mode max messages value is invalid.`
);
}
} else if (args[0] === "settings") { // Print plugin settings (/slowmode settings).
ctx.replyWithHTML(
html`Slow Mode settings:
<code>
active: ${settings.active}
mutingTime: ${settings.mutingTime}
postingInterval: ${settings.postingInterval}
maxMessages: ${settings.maxMessages}
</code>`
);
} else { // Invalid arguments, show Slow Mode commands.
ctx.replyWithHTML(
html`Slow Mode usage:
<code>/slowmode argument value</code>\n
Slow Mode arguments:\n
<code>on</code> - Enables Slow Mode.
<code>off</code> - Disables Slow Mode.
<code>mute</code> - Changes the muting time, in seconds, cannot be lower than 300 seconds (5 minutes).
<code>interval</code> - Changes the interval time, in seconds, cannot be lower than 1 second.
<code>messages</code> - Changes the max messages allowed, cannot be lower than 5 messages.
<code>settings</code> - Shows the current settings for Slow Mode.`
);
}
}
}
ctx.deleteMessage(ctx.message?.message_id);
}
}
if (settings.active) {
let inList = false;
slowList.forEach((s) => { if (s.user.id === ctx.from?.id && s.chat === String(ctx.chat?.id)) { inList = true } })
//logError("[slowmode] New Message from Member in List: " + inList);
if (!ctx.from?.is_bot && !inList && (adminList.indexOf(ctx.from?.id) < 0)) {
const s = slowing(ctx, ctx.from);
slowList.push(s);
s.chat = String(ctx.chat?.id);
}
//logError("[slowmode] Slow List: " + slowList.length);
const currentMessage = slowList.find(
(x) => (x.user.id === ctx.from?.id && x.chat === String(ctx.chat?.id))
);
if (!currentMessage) {
return next();
}
//logError("[slowmode] User " + ctx.from?.username + " in Chat " + ctx.chat?.title + " Previous Message Time: " + currentMessage.lastMessageDate.getTime());
const newMessageDate = new Date();
//logError("[slowmode] User " + ctx.from?.username + " in Chat " + ctx.chat?.title + " New Message Time: " + newMessageDate.getTime());
const messageTimeDifference = newMessageDate.getTime() - currentMessage.lastMessageDate.getTime();
currentMessage.lastMessageDate = newMessageDate;
//logError("[slowmode] User " + ctx.from?.username + " in Chat " + ctx.chat?.title + " Time Difference: " + messageTimeDifference);
if (messageTimeDifference <= (settings.postingInterval * 1000)) {
currentMessage.messageCounter = currentMessage.messageCounter + 1;
} else if (messageTimeDifference > (settings.postingInterval * 1000)) {
if (currentMessage.messageCounter > 0) {
currentMessage.messageCounter = currentMessage.messageCounter - 1;
}
}
//logError("[slowmode] User " + ctx.from?.username + " in Chat " + ctx.chat?.title + " Message Counter: " + currentMessage.messageCounter);
if (currentMessage.messageCounter >= settings.maxMessages) {
const currentOptions = {
until_date: Math.floor((Date.now() / 1000) + settings.mutingTime),
can_send_messages: mutedOptions.can_send_messages,
can_send_media_messages: mutedOptions.can_send_media_messages,
can_send_polls: mutedOptions.can_send_polls,
can_send_other_messages: mutedOptions.can_send_other_messages,
can_add_web_page_previews: mutedOptions.can_add_web_page_previews,
can_change_info: mutedOptions.can_change_info,
can_invite_users: mutedOptions.can_invite_users,
can_pin_messages: mutedOptions.can_pin_messages
}
return Promise.all([
ctx.replyWithHTML(html`${link(ctx.from)} is posting too many messages too fast, they have been muted for ${(settings.mutingTime / 60)} minutes`),
ctx.telegram.restrictChatMember(ctx.chat?.id, ctx.from?.id, currentOptions),
currentMessage.messageCounter = 0,
]).catch((err) => logError("[slowmode] " + err.message));
}
} else {
return next();
}
});