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import { BotCommand, colors, emojis, type ArgType, type CommandMessage, type OptArgType, type SlashMessage } from '#lib';
import assert from 'assert/strict';
import { ApplicationCommandOptionType, EmbedBuilder } from 'discord.js';
import { VM } from 'vm2';
assert(VM);
export default class JavascriptCommand extends BotCommand {
public constructor() {
super('javascript', {
aliases: ['javascript', 'js'],
category: 'dev',
description: 'Evaluate code in a sand boxed environment.',
usage: ['javascript <code> [--depth #]'],
examples: ['javascript 9+10'],
args: [
{
id: 'code',
description: 'The code you would like to run in a sand boxed environment.',
match: 'rest',
prompt: 'What code would you like to run in a sand boxed environment?',
retry: '{error} Invalid code to run in a sand boxed environment.',
slashType: ApplicationCommandOptionType.String
},
{
id: 'sel_depth',
description: 'How deep to inspect the output.',
match: 'option',
type: 'integer',
flag: '--depth',
default: 0,
prompt: 'How deep would you like to inspect the output?',
slashType: ApplicationCommandOptionType.Integer,
optional: true
}
],
slash: true,
superUserOnly: true,
clientPermissions: ['EmbedLinks'],
clientCheckChannel: true,
userPermissions: []
});
}
public override async exec(
message: CommandMessage | SlashMessage,
args: { code: ArgType<'string'>; sel_depth: OptArgType<'integer'> }
) {
if (!message.author.isSuperUser()) return await message.util.reply(`${emojis.error} Only super users can run this command.`);
if (message.util.isSlashMessage(message)) {
await message.interaction.deferReply({ ephemeral: false });
}
const code = args.code.replace(/[“”]/g, '"').replace(/```*(?:js)?/g, '');
const embed = new EmbedBuilder();
const input = await this.client.utils.inspectCleanRedactCodeblock(code, 'js');
try {
const rawOutput = /^(9\s*?\+\s*?10)|(10\s*?\+\s*?9)$/.test(code)
? '21'
: new VM({ eval: true, wasm: true, timeout: 1_000, fixAsync: true }).run(`${code}`);
const output = await this.client.utils.inspectCleanRedactCodeblock(rawOutput, 'js', {
depth: args.sel_depth ?? 0,
getters: true,
inspectStrings: true,
colors: false
});
embed.setTitle(`${emojis.successFull} Successfully Evaluated Expression`).setColor(colors.success);
embed.addFields({ name: '📥 Input', value: input }, { name: '📤 Output', value: output });
} catch (e) {
embed.setTitle(`${emojis.errorFull} Unable to Evaluate Expression`).setColor(colors.error);
embed.addFields(
{ name: '📥 Input', value: input },
{ name: '📤 Error', value: await this.client.utils.inspectCleanRedactCodeblock(e, 'js', { colors: false }) }
);
}
embed.setTimestamp().setFooter({ text: message.author.tag, iconURL: message.author.displayAvatarURL() ?? undefined });
await message.util.reply({ embeds: [embed] });
}
}
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