Files
2026-07-26 18:25:37 +09:00

64 lines
2.1 KiB
JavaScript

import * as fs from "node:fs";
import * as stream from "node:stream";
import * as util from "node:util";
import got, * as Got from "got";
import { httpAgent, httpsAgent, StatusError } from "./fetch.js";
import config from "../config/index.js";
import chalk from "chalk";
import Logger from "../services/logger.js";
const pipeline = util.promisify(stream.pipeline);
export async function downloadUrl(url, path) {
const logger = new Logger("download");
logger.info(`Downloading ${chalk.cyan(url)} ...`);
const timeout = 30 * 1000;
const operationTimeout = 60 * 1000;
const maxSize = config.maxFileSize || 262144000;
const req = got.stream(url, {
headers: {
"User-Agent": config.userAgent,
Host: new URL(url).hostname
},
timeout: {
lookup: timeout,
connect: timeout,
secureConnect: timeout,
socket: timeout,
response: timeout,
send: timeout,
request: operationTimeout
},
agent: {
http: httpAgent,
https: httpsAgent
},
http2: false,
retry: {
limit: 0
}
}).on("response", (res)=>{
const contentLength = res.headers["content-length"];
if (contentLength != null) {
const size = Number(contentLength);
if (size > maxSize) {
logger.warn(`maxSize exceeded (${size} > ${maxSize}) on response`);
req.destroy();
}
}
}).on("downloadProgress", (progress)=>{
if (progress.transferred > maxSize) {
logger.warn(`maxSize exceeded (${progress.transferred} > ${maxSize}) on downloadProgress`);
req.destroy();
}
});
try {
await pipeline(req, fs.createWriteStream(path));
} catch (e) {
if (e instanceof Got.HTTPError) {
throw new StatusError(`${e.response.statusCode} ${e.response.statusMessage}`, e.response.statusCode, e.response.statusMessage);
} else {
throw e;
}
}
logger.succ(`Download finished: ${chalk.cyan(url)}`);
}