compiler-discord/src/struct/LanguageHandler.js
2019-03-15 01:07:17 -04:00

113 lines
3.6 KiB
JavaScript

const { AkairoHandler } = require('discord-akairo');
const { Collection } = require('discord.js');
const Language = require('./Language');
const childProcess = require('child_process');
const util = require('util');
const path = require('path');
class LanguageHandler extends AkairoHandler {
constructor(client, {
directory,
classToHandle = Language,
extensions = ['.js', '.ts'],
automateCategories,
loadFilter = filepath =>
!this.client.config.languages.length || this.client.config.languages.includes(path.parse(filepath).name)
}) {
super(client, {
directory,
classToHandle,
extensions,
automateCategories,
loadFilter
});
this.aliases = new Collection();
}
register(language, filepath) {
super.register(language, filepath);
for (let alias of language.aliases) {
const conflict = this.aliases.get(alias.toLowerCase());
if (conflict) throw new TypeError(`Alias conflict of ${alias} between ${language.id} and ${conflict}`);
alias = alias.toLowerCase();
this.aliases.set(alias, language.id);
}
}
deregister(language) {
for (let alias of language.aliases) {
alias = alias.toLowerCase();
this.aliases.delete(alias);
}
super.deregister(language);
}
findLanguage(alias) {
return this.modules.get(this.aliases.get(alias.toLowerCase()));
}
buildDocker() {
return Promise.all(this.modules.map(({ loads }) => {
return Promise.all(loads.map(name => {
const folder = path.join(__dirname, '../../docker', name);
return util.promisify(childProcess.exec)(`docker build -t "1computer1/comp_iler:${name}" ${folder}`);
}));
}));
}
evalCode(message, { language, code, options }) {
return new Promise((resolve, reject) => {
const name = `comp_iler-${message.id}-${Date.now()}`;
const { id, env } = language.runWith(options);
const proc = childProcess.spawn('docker', [
'run', '--rm', `--name=${name}`, '-u1000', '-w/tmp/',
'--net=none', `--cpus=${this.client.config.cpus}`, `-m=${this.client.config.memory}`,
...Object.entries(env).map(([k, v]) => `-e${k}=${v}`),
`1computer1/comp_iler:${id}`,
'/bin/sh', '/var/run/run.sh', code
]);
setTimeout(() => {
try {
if (process.platform === 'win32') {
childProcess.execSync(`docker kill --signal=9 ${name} >nul 2>nul`);
} else {
childProcess.execSync(`docker kill --signal=9 ${name} >/dev/null 2>/dev/null`);
}
reject(new Error('Timed out'));
} catch (e) {
reject(e);
}
}, this.client.config.timeout);
let data = '';
proc.stdout.on('data', chunk => {
data += chunk;
});
proc.stderr.on('data', chunk => {
data += chunk;
});
proc.on('error', error => {
error.data = data;
reject(error);
});
proc.on('exit', status => {
if (status !== 0) {
reject(new Error(data));
} else {
resolve(data);
}
});
});
}
}
module.exports = LanguageHandler;