239 lines
No EOL
7.5 KiB
JavaScript
239 lines
No EOL
7.5 KiB
JavaScript
import { config } from "dotenv";
|
|
config();
|
|
import { cpus } from "os";
|
|
import { Worker } from "worker_threads";
|
|
import { join } from "path";
|
|
import { createServer } from "http";
|
|
import ws from "ws";
|
|
import { fileURLToPath } from "url";
|
|
import { dirname } from "path";
|
|
|
|
const start = process.hrtime();
|
|
const log = (msg, jobNum) => {
|
|
console.log(`[${process.hrtime(start)[1] / 1000000}${jobNum !== undefined ? `:${jobNum}` : ""}]\t ${msg}`);
|
|
};
|
|
|
|
class JobCache extends Map {
|
|
set(key, value) {
|
|
super.set(key, value);
|
|
setTimeout(() => {
|
|
if (super.has(key) && this.get(key) === value && value.data) super.delete(key);
|
|
}, 300000); // delete jobs if not requested after 5 minutes
|
|
}
|
|
}
|
|
|
|
const jobs = new JobCache();
|
|
// Should look like UUID : { msg: "request", num: <job number> }
|
|
const queue = [];
|
|
// Array of UUIDs
|
|
|
|
import { v4 as uuidv4 } from "uuid";
|
|
|
|
const MAX_JOBS = process.env.JOBS !== "" && process.env.JOBS !== undefined ? parseInt(process.env.JOBS) : cpus().length * 4; // Completely arbitrary, should usually be some multiple of your amount of cores
|
|
const PASS = process.env.PASS !== "" && process.env.PASS !== undefined ? process.env.PASS : undefined;
|
|
let jobAmount = 0;
|
|
|
|
const acceptJob = (uuid, sock) => {
|
|
jobAmount++;
|
|
queue.shift();
|
|
const job = jobs.get(uuid);
|
|
return runJob({
|
|
uuid: uuid,
|
|
msg: job.msg,
|
|
num: job.num
|
|
}, sock).then(() => {
|
|
log(`Job ${uuid} has finished`);
|
|
}).catch((err) => {
|
|
console.error(`Error on job ${uuid}:`, err);
|
|
jobs.delete(uuid);
|
|
sock.send(Buffer.concat([Buffer.from([0x2]), Buffer.from(uuid), Buffer.from(err.message)]));
|
|
}).finally(() => {
|
|
jobAmount--;
|
|
if (queue.length > 0) {
|
|
acceptJob(queue[0], sock);
|
|
}
|
|
});
|
|
};
|
|
|
|
const wss = new ws.Server({ clientTracking: true, noServer: true });
|
|
|
|
wss.on("connection", (ws, request) => {
|
|
log(`WS client ${request.socket.remoteAddress}:${request.socket.remotePort} has connected`);
|
|
|
|
ws.on("error", (err) => {
|
|
console.error(err);
|
|
});
|
|
|
|
ws.on("message", (msg) => {
|
|
const opcode = msg.readUint8(0);
|
|
const req = msg.toString().slice(1,msg.length);
|
|
console.log(req);
|
|
// 0x00 == Cancel job
|
|
// 0x01 == Queue job
|
|
if (opcode == 0x00) {
|
|
delete queue[queue.indexOf(req) - 1];
|
|
jobs.delete(req);
|
|
} else if (opcode == 0x01) {
|
|
const length = parseInt(req.slice(0, 1));
|
|
const num = req.slice(1, length + 1);
|
|
const obj = req.slice(length + 1);
|
|
const job = { msg: obj, num: jobAmount };
|
|
const uuid = uuidv4();
|
|
jobs.set(uuid, job);
|
|
queue.push(uuid);
|
|
|
|
const newBuffer = Buffer.concat([Buffer.from([0x00]), Buffer.from(uuid), Buffer.from(num)]);
|
|
ws.send(newBuffer);
|
|
|
|
if (jobAmount < MAX_JOBS) {
|
|
log(`Got WS request for job ${job.msg} with id ${uuid}`, job.num);
|
|
acceptJob(uuid, ws);
|
|
} else {
|
|
log(`Got WS request for job ${job.msg} with id ${uuid}, queued in position ${queue.indexOf(uuid)}`, job.num);
|
|
}
|
|
} else {
|
|
log("Could not parse WS message");
|
|
}
|
|
});
|
|
|
|
ws.on("close", () => {
|
|
log(`WS client ${request.socket.remoteAddress}:${request.socket.remotePort} has disconnected`);
|
|
});
|
|
});
|
|
|
|
wss.on("error", (err) => {
|
|
console.error("A WS error occurred: ", err);
|
|
});
|
|
|
|
const httpServer = createServer();
|
|
|
|
httpServer.on("request", async (req, res) => {
|
|
if (req.method !== "GET") {
|
|
res.statusCode = 405;
|
|
return res.end("405 Method Not Allowed");
|
|
}
|
|
if (PASS && req.headers.authentication !== PASS) {
|
|
res.statusCode = 401;
|
|
return res.end("401 Unauthorized");
|
|
}
|
|
const reqUrl = new URL(req.url, `http://${req.headers.host}`);
|
|
if (reqUrl.pathname === "/status" && req.method === "GET") {
|
|
log(`Sending server status to ${req.socket.remoteAddress}:${req.socket.remotePort} via HTTP`);
|
|
const statusObject = {
|
|
load: MAX_JOBS - jobAmount,
|
|
queued: queue.length
|
|
};
|
|
return res.end(JSON.stringify(statusObject));
|
|
} else if (reqUrl.pathname === "/running" && req.method === "GET") {
|
|
log(`Sending currently running jobs to ${req.socket.remoteAddress}:${req.socket.remotePort} via HTTP`);
|
|
const keys = jobs.keys();
|
|
const newObject = { queued: queue.length, runningJobs: jobAmount, max: MAX_JOBS };
|
|
for (const key of keys) {
|
|
const validKeys = Object.keys(jobs.get(key)).filter((value) => value !== "addr" && value !== "port" && value !== "data" && value !== "ext");
|
|
newObject[key] = {};
|
|
for (const validKey of validKeys) {
|
|
if (validKey === "msg") {
|
|
newObject[key][validKey] = JSON.parse(jobs.get(key)[validKey]);
|
|
} else {
|
|
newObject[key][validKey] = jobs.get(key)[validKey];
|
|
}
|
|
}
|
|
}
|
|
return res.end(JSON.stringify(newObject));
|
|
} else if (reqUrl.pathname === "/image" && req.method === "GET") {
|
|
if (!reqUrl.searchParams.has("id")) {
|
|
res.statusCode = 400;
|
|
return res.end("400 Bad Request");
|
|
}
|
|
const id = reqUrl.searchParams.get("id");
|
|
if (!jobs.has(id)) {
|
|
res.statusCode = 410;
|
|
return res.end("410 Gone");
|
|
}
|
|
log(`Sending image data for job ${id} to ${req.socket.remoteAddress}:${req.socket.remotePort} via HTTP`);
|
|
res.setHeader("ext", jobs.get(id).ext);
|
|
const data = jobs.get(id).data;
|
|
jobs.delete(id);
|
|
return res.end(data, (err) => {
|
|
if (err) console.error(err);
|
|
});
|
|
} else {
|
|
res.statusCode = 404;
|
|
return res.end("404 Not Found");
|
|
}
|
|
});
|
|
|
|
httpServer.on("upgrade", (req, sock, head) => {
|
|
const reqUrl = new URL(req.url, `http://${req.headers.host}`);
|
|
|
|
if (PASS && req.headers.authentication !== PASS) {
|
|
sock.write("HTTP/1.1 401 Unauthorized\r\n\r\n");
|
|
sock.destroy();
|
|
return;
|
|
}
|
|
|
|
if (reqUrl.pathname === "/sock") {
|
|
wss.handleUpgrade(req, sock, head, (ws) => {
|
|
wss.emit("connection", ws, req);
|
|
});
|
|
} else {
|
|
sock.destroy();
|
|
}
|
|
});
|
|
|
|
httpServer.on("error", (e) => {
|
|
console.error("An HTTP error occurred: ", e);
|
|
});
|
|
|
|
httpServer.listen(8080, () => {
|
|
log("HTTP and WS listening on port 8080");
|
|
});
|
|
|
|
const runJob = (job, sock) => {
|
|
return new Promise((resolve, reject) => {
|
|
log(`Job ${job.uuid} starting...`, job.num);
|
|
|
|
const object = JSON.parse(job.msg);
|
|
// If the image has a path, it must also have a type
|
|
if (object.path && !object.type) {
|
|
reject(new TypeError("Unknown image type"));
|
|
}
|
|
|
|
const worker = new Worker(join(dirname(fileURLToPath(import.meta.url)), "../utils/image-runner.js"), {
|
|
workerData: object
|
|
});
|
|
const timeout = setTimeout(() => {
|
|
worker.terminate();
|
|
reject(new Error("Job timed out"));
|
|
}, 900000);
|
|
log(`Job ${job.uuid} started`, job.num);
|
|
worker.once("message", (data) => {
|
|
clearTimeout(timeout);
|
|
log(`Sending result of job ${job.uuid} back to the bot`, job.num);
|
|
const jobObject = jobs.get(job.uuid);
|
|
jobObject.data = data.buffer;
|
|
jobObject.ext = data.fileExtension;
|
|
jobs.set(job.uuid, jobObject);
|
|
sock.send(Buffer.concat([Buffer.from([0x1]), Buffer.from(job.uuid)]), () => {
|
|
return resolve();
|
|
});
|
|
});
|
|
worker.once("error", (e) => {
|
|
clearTimeout(timeout);
|
|
reject(e);
|
|
});
|
|
/*run(object).then((data) => {
|
|
log(`Sending result of job ${job.uuid} back to the bot`, job.num);
|
|
const jobObject = jobs.get(job.uuid);
|
|
jobObject.data = data.buffer;
|
|
jobObject.ext = data.fileExtension;
|
|
jobs.set(job.uuid, jobObject);
|
|
sock.write(Buffer.concat([Buffer.from([0x1]), Buffer.from(job.uuid)]), (e) => {
|
|
if (e) return reject(e);
|
|
return resolve();
|
|
});
|
|
}).catch(e => {
|
|
reject(e);
|
|
});*/
|
|
});
|
|
}; |