mrmBot-Matrix/events/messageCreate.js

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import { promises } from "fs";
import database from "../utils/database.js";
import { log, error as _error } from "../utils/logger.js";
import { prefixCache, aliases, disabledCache, disabledCmdCache, commands } from "../utils/collections.js";
import parseCommand from "../utils/parseCommand.js";
import { clean } from "../utils/misc.js";
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// run when someone sends a message
export default async (client, cluster, worker, ipc, message) => {
// ignore other bots
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if (message.author.bot) return;
// don't run command if bot can't send messages
if (message.channel.guild && !message.channel.permissionsOf(client.user.id).has("sendMessages")) return;
let prefixCandidate;
let guildDB;
if (message.channel.guild) {
const cachedPrefix = prefixCache.get(message.channel.guild.id);
if (cachedPrefix) {
prefixCandidate = cachedPrefix;
} else {
guildDB = await database.getGuild(message.channel.guild.id);
if (!guildDB) {
guildDB = await database.fixGuild(message.channel.guild);
}
prefixCandidate = guildDB.prefix;
prefixCache.set(message.channel.guild.id, guildDB.prefix);
}
}
let prefix;
let isMention = false;
if (message.channel.guild) {
const user = message.channel.guild.members.get(client.user.id);
if (message.content.startsWith(user.mention)) {
prefix = `${user.mention} `;
isMention = true;
} else if (message.content.startsWith(`<@${client.user.id}>`)) { // workaround for member.mention not accounting for both mention types
prefix = `<@${client.user.id}> `;
isMention = true;
} else {
prefix = prefixCandidate;
}
} else {
prefix = process.env.PREFIX;
}
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// ignore other stuff
if (!message.content.startsWith(prefix)) return;
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// separate commands and args
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const replace = isMention ? `@${(message.channel.guild ? message.channel.guild.members.get(client.user.id).nick : client.user.username) ?? client.user.username} ` : prefix;
const content = message.cleanContent.substring(replace.length).trim();
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const rawContent = message.content.substring(prefix.length).trim();
const preArgs = content.split(/\s+/g);
preArgs.shift();
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const command = rawContent.split(/\s+/g).shift().toLowerCase();
const parsed = parseCommand(preArgs);
const aliased = aliases.get(command);
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// don't run if message is in a disabled channel
if (message.channel.guild) {
const disabled = disabledCache.get(message.channel.guild.id);
if (disabled) {
if (disabled.includes(message.channel.id) && command != "channel") return;
} else {
guildDB = await database.getGuild(message.channel.guild.id);
disabledCache.set(message.channel.guild.id, guildDB.disabled);
if (guildDB.disabled.includes(message.channel.id) && command !== "channel") return;
}
const disabledCmds = disabledCmdCache.get(message.channel.guild.id);
if (disabledCmds) {
if (disabledCmds.includes(aliased ?? command)) return;
} else {
guildDB = await database.getGuild(message.channel.guild.id);
disabledCmdCache.set(message.channel.guild.id, guildDB.disabled_commands ?? guildDB.disabledCommands);
if ((guildDB.disabled_commands ?? guildDB.disabledCommands).includes(aliased ?? command)) return;
}
}
// check if command exists and if it's enabled
const cmd = commands.get(aliased ?? command);
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if (!cmd) return;
// block certain commands from running in DMs
if (!cmd.directAllowed && !message.channel.guild) return;
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// actually run the command
log("log", `${message.author.username} (${message.author.id}) ran classic command ${command}`);
const reference = {
messageReference: {
channelID: message.channel.id,
messageID: message.id,
guildID: message.channel.guild ? message.channel.guild.id : undefined,
failIfNotExists: false
},
allowedMentions: {
repliedUser: false
}
};
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try {
await database.addCount(aliases.get(command) ?? command);
const startTime = new Date();
// eslint-disable-next-line no-unused-vars
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const commandClass = new cmd(client, cluster, worker, ipc, { type: "classic", message, args: parsed._, content: message.content.substring(prefix.length).trim().replace(command, "").trim(), specialArgs: (({ _, ...o }) => o)(parsed) }); // we also provide the message content as a parameter for cases where we need more accuracy
const result = await commandClass.run();
const endTime = new Date();
if ((endTime - startTime) >= 180000) reference.allowedMentions.repliedUser = true;
if (typeof result === "string") {
reference.allowedMentions.repliedUser = true;
await client.createMessage(message.channel.id, Object.assign({
content: result
}, reference));
} else if (typeof result === "object" && result.embeds) {
await client.createMessage(message.channel.id, Object.assign(result, reference));
} else if (typeof result === "object" && result.file) {
let fileSize = 8388119;
if (message.channel.guild) {
switch (message.channel.guild.premiumTier) {
case 2:
fileSize = 52428308;
break;
case 3:
fileSize = 104856616;
break;
}
}
if (result.file.length > fileSize) {
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if (process.env.TEMPDIR && process.env.TEMPDIR !== "") {
const filename = `${Math.random().toString(36).substring(2, 15)}.${result.name.split(".")[1]}`;
await promises.writeFile(`${process.env.TEMPDIR}/${filename}`, result.file);
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const imageURL = `${process.env.TMP_DOMAIN || "https://tmp.projectlounge.pw"}/${filename}`;
await client.createMessage(message.channel.id, Object.assign({
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embeds: [{
color: 16711680,
title: "Here's your image!",
url: imageURL,
image: {
url: imageURL
},
footer: {
text: "The result image was more than 8MB in size, so it was uploaded to an external site instead."
},
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}]
}, reference));
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if (process.env.THRESHOLD) {
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process.env.DIRSIZECACHE += result.file.length;
if (process.env.DIRSIZECACHE > process.env.THRESHOLD) {
const files = (await promises.readdir(process.env.TEMPDIR)).map((file) => {
return new Promise((resolve, reject) => {
promises.stat(`${process.env.TEMPDIR}/${file}`).then((fstats)=>{
resolve({
name: file,
size: fstats.size,
ctime: fstats.ctime
});
}).catch(reject);
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});
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});
Promise.all(files).then((files) => {
process.env.DIRSIZECACHE = files.reduce((a, b)=>{
return a+b.size;
}, 0);
const oldestFile = files.sort((a, b) => a.ctime - b.ctime)[0].name;
promises.rm(`${process.env.TEMPDIR}/${oldestFile}`);
log(`Removed oldest image file: ${oldestFile}`);
});
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}
}
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} else {
await client.createMessage(message.channel.id, "The resulting image was more than 8MB in size, so I can't upload it.");
}
} else {
await client.createMessage(message.channel.id, Object.assign({
content: result.text ? result.text : undefined
}, reference), result);
}
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}
} catch (error) {
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if (error.toString().includes("Request entity too large")) {
await client.createMessage(message.channel.id, Object.assign({
content: "The resulting file was too large to upload. Try again with a smaller image if possible."
}, reference));
} else if (error.toString().includes("Job ended prematurely")) {
await client.createMessage(message.channel.id, Object.assign({
content: "Something happened to the image servers before I could receive the image. Try running your command again."
}, reference));
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} else if (error.toString().includes("Timed out")) {
await client.createMessage(message.channel.id, Object.assign({
content: "The request timed out before I could download that image. Try uploading your image somewhere else or reducing its size."
}, reference));
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} else {
_error(`Error occurred with command message ${message.cleanContent}: ${typeof error === "object" ? JSON.stringify(error) : error.toString()}`);
try {
await client.createMessage(message.channel.id, Object.assign({
content: "Uh oh! I ran into an error while running this command. Please report the content of the attached file at the following link or on the esmBot Support server: <https://github.com/esmBot/esmBot/issues>"
}, reference), [{
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file: `Message: ${await clean(error)}\n\nStack Trace: ${await clean(error.stack)}`,
name: "error.txt"
}]);
} catch { /* silently ignore */ }
}
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}
};