feat: improve security and error handling in app
- Added `helmet` middleware for enhanced security with CSP. - Integrated `dotenv` for configuration management. - Added validation and error handling for mnemonic and infoHash. - Improved error handling in TURN credentials generation. - Enhanced notification and progress feedback for file sharing. - Added tracker server config validation and error handling. - Updated dependencies to include `helmet` and `dotenv`. These changes improve the app's security, robustness, and user experience.
This commit is contained in:
parent
f87ec52173
commit
2394a9f6ee
GPG key ID:
ECBCC9082395383F
6 changed files with 261 additions and 153 deletions
75
app.js
75
app.js
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@ -3,6 +3,10 @@ import path from "path";
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import { fileURLToPath } from "url";
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import bip39 from "bip39";
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import crypto from "crypto";
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import helmet from "helmet";
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import dotenv from "dotenv";
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dotenv.config();
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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@ -17,16 +21,51 @@ const turnTTL = 86400;
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app.set("view engine", "ejs");
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app.use(express.static(path.join(__dirname, "public")));
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app.use(helmet());
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app.use(
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helmet.contentSecurityPolicy({
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directives: {
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defaultSrc: ["'self'"],
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scriptSrc: ["'self'"],
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connectSrc: ["'self'", trackerUrl],
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imgSrc: ["'self'", "data:"],
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styleSrc: ["'self'", "'unsafe-inline'"],
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},
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})
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);
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app.use(express.json());
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app.use(express.urlencoded({ extended: true }));
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const isValidInfoHash = (infoHash) => /^[0-9a-fA-F]{40}$/.test(infoHash);
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app.get("/generate-mnemonic/:infoHash", (req, res) => {
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const infoHash = req.params.infoHash;
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const mnemonic = bip39.entropyToMnemonic(infoHash);
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res.json({ mnemonic });
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if (!isValidInfoHash(infoHash)) {
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return res.status(400).json({ error: "Invalid infoHash" });
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}
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try {
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const mnemonic = bip39.entropyToMnemonic(infoHash);
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res.json({ mnemonic });
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} catch (error) {
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res.status(500).json({ error: "Failed to generate mnemonic" });
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}
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});
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app.get("/get-infohash/:mnemonic", (req, res) => {
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const mnemonic = req.params.mnemonic;
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const infoHash = bip39.mnemonicToEntropy(mnemonic);
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res.json({ infoHash });
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if (!bip39.validateMnemonic(mnemonic)) {
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return res.status(400).json({ error: "Invalid mnemonic" });
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}
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try {
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const infoHash = bip39.mnemonicToEntropy(mnemonic);
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res.json({ infoHash });
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} catch (error) {
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res.status(500).json({ error: "Failed to get infoHash" });
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}
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});
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app.get("/turn-credentials", (req, res) => {
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@ -37,24 +76,30 @@ app.get("/turn-credentials", (req, res) => {
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}
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if (turnServerUrl && turnSecret) {
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const unixTimeStamp = Math.floor(Date.now() / 1000) + turnTTL;
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const username = `${unixTimeStamp}:transfercoffee`;
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const hmac = crypto.createHmac("sha1", turnSecret);
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hmac.update(username);
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const credential = hmac.digest("base64");
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try {
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const unixTimeStamp = Math.floor(Date.now() / 1000) + turnTTL;
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const username = `${unixTimeStamp}:transfercoffee`;
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const hmac = crypto.createHmac("sha1", turnSecret);
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hmac.update(username);
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const credential = hmac.digest("base64");
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iceServers.push({
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urls: turnServerUrl,
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username: username,
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credential: credential,
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});
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iceServers.push({
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urls: turnServerUrl,
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username: username,
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credential: credential,
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});
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} catch (error) {
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return res
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.status(500)
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.json({ error: "Failed to generate TURN credentials" });
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}
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}
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res.json({ iceServers });
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});
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app.get("/:mnemonic?", (req, res) => {
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var mnemonic = req.params.mnemonic || "";
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let mnemonic = req.params.mnemonic || "";
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if (mnemonic) {
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mnemonic = mnemonic.replaceAll(".", " ").trim();
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43
package-lock.json
generated
43
package-lock.json
generated
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@ -11,8 +11,10 @@
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"dependencies": {
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"bip39": "^3.1.0",
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"bittorrent-tracker": "^11.1.0",
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"dotenv": "^16.4.5",
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"ejs": "^3.1.10",
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"express": "^4.19.2"
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"express": "^4.19.2",
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"helmet": "^7.1.0"
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}
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},
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"node_modules/@noble/hashes": {
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@ -297,11 +299,6 @@
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}
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}
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},
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"node_modules/bittorrent-tracker/node_modules/ip": {
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"version": "2.0.1",
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"resolved": "https://registry.npmjs.org/ip/-/ip-2.0.1.tgz",
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"integrity": "sha512-lJUL9imLTNi1ZfXT+DU6rBBdbiKGBuay9B6xGSPVjUeQwaH1RIGqef8RZkUtHioLmSNpPR5M4HVKJGm1j8FWVQ=="
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},
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"node_modules/bittorrent-tracker/node_modules/ms": {
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"version": "2.1.2",
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"resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
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@ -624,6 +621,18 @@
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"node": ">=8"
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}
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},
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"node_modules/dotenv": {
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"version": "16.4.5",
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"resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.5.tgz",
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"integrity": "sha512-ZmdL2rui+eB2YwhsWzjInR8LldtZHGDoQ1ugH85ppHKwpUHL7j7rN0Ti9NCnGiQbhaZ11FpR+7ao1dNsmduNUg==",
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"license": "BSD-2-Clause",
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"engines": {
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"node": ">=12"
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},
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"funding": {
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"url": "https://dotenvx.com"
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}
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},
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"node_modules/ee-first": {
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"version": "1.1.1",
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"resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
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@ -950,6 +959,15 @@
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"node": ">= 0.4"
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}
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},
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"node_modules/helmet": {
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"version": "7.1.0",
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"resolved": "https://registry.npmjs.org/helmet/-/helmet-7.1.0.tgz",
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"integrity": "sha512-g+HZqgfbpXdCkme/Cd/mZkV0aV3BZZZSugecH03kl38m/Kmdx8jKjBikpDj2cr+Iynv4KpYEviojNdTJActJAg==",
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"license": "MIT",
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"engines": {
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"node": ">=16.0.0"
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}
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},
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"node_modules/http-errors": {
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"version": "2.0.0",
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"resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
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@ -1005,6 +1023,12 @@
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"resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
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"integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew=="
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},
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"node_modules/ip": {
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"version": "2.0.1",
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"resolved": "https://registry.npmjs.org/ip/-/ip-2.0.1.tgz",
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"integrity": "sha512-lJUL9imLTNi1ZfXT+DU6rBBdbiKGBuay9B6xGSPVjUeQwaH1RIGqef8RZkUtHioLmSNpPR5M4HVKJGm1j8FWVQ==",
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"license": "MIT"
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},
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"node_modules/ip-address": {
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"version": "9.0.5",
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"resolved": "https://registry.npmjs.org/ip-address/-/ip-address-9.0.5.tgz",
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@ -1873,9 +1897,10 @@
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"integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
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},
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"node_modules/ws": {
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"version": "8.17.0",
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"resolved": "https://registry.npmjs.org/ws/-/ws-8.17.0.tgz",
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"integrity": "sha512-uJq6108EgZMAl20KagGkzCKfMEjxmKvZHG7Tlq0Z6nOky7YF7aq4mOx6xK8TJ/i1LeK4Qus7INktacctDgY8Ow==",
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"version": "8.17.1",
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"resolved": "https://registry.npmjs.org/ws/-/ws-8.17.1.tgz",
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"integrity": "sha512-6XQFvXTkbfUOZOKKILFG1PDK2NDQs4azKQl26T0YS5CxqWLgXajbPZ+h4gZekJyRqFU8pvnbAbbs/3TgRPy+GQ==",
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"license": "MIT",
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"engines": {
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"node": ">=10.0.0"
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},
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@ -18,7 +18,9 @@
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"dependencies": {
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"bip39": "^3.1.0",
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"bittorrent-tracker": "^11.1.0",
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"dotenv": "^16.4.5",
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"ejs": "^3.1.10",
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"express": "^4.19.2"
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"express": "^4.19.2",
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"helmet": "^7.1.0"
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}
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}
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@ -1,12 +1,17 @@
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const client = new WebTorrent();
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async function getRTCIceServers() {
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const response = await fetch("/turn-credentials");
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const data = await response.json();
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return data.iceServers;
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try {
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const response = await fetch("/turn-credentials");
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if (!response.ok) throw new Error("Failed to fetch TURN credentials");
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const data = await response.json();
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return data.iceServers;
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} catch (error) {
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console.error("Error getting ICE servers:", error);
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}
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}
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async function uploadFile() {
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async function uploadFile(trackerUrl) {
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const fileInput = document.getElementById("fileInput");
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const file = fileInput.files[0];
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const uploadStats = document.getElementById("uploadStats");
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@ -24,19 +29,21 @@ async function uploadFile() {
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uploadSection.style.display = "block";
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uploadButton.disabled = true;
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const rtcConfig = {
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iceServers: await getRTCIceServers(),
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};
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try {
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const rtcConfig = {
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iceServers: await getRTCIceServers(),
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};
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const opts = {
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announce: [trackerUrl],
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rtcConfig: rtcConfig,
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};
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const opts = {
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announce: [trackerUrl],
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rtcConfig: rtcConfig,
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};
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client.seed(file, opts, async (torrent) => {
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fetch(`/generate-mnemonic/${torrent.infoHash}`)
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.then((response) => response.json())
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.then((data) => {
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client.seed(file, opts, async (torrent) => {
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try {
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const response = await fetch(`/generate-mnemonic/${torrent.infoHash}`);
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if (!response.ok) throw new Error("Failed to generate mnemonic");
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const data = await response.json();
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const uploadResult = document.getElementById("uploadResult");
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const downloadUrl = `${
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window.location.origin
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@ -46,43 +53,45 @@ async function uploadFile() {
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<br>Note that the file will be available for download only as long as you keep this page open.`;
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copyButton.style.display = "inline-block";
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copyButton.setAttribute("data-url", downloadUrl);
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});
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let totalPeers = 0;
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const seenPeers = new Set();
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setInterval(async () => {
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for (const wire of torrent.wires) {
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let peerIdHash;
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try {
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peerIdHash = await sha256(wire.peerId);
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} catch (e) {
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peerIdHash = wire.peerId;
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}
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if (!seenPeers.has(peerIdHash)) {
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seenPeers.add(peerIdHash);
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totalPeers += 1;
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}
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} catch (error) {
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console.error("Error generating mnemonic:", error);
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alert("Failed to generate mnemonic. Please try again.");
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}
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const uploaded = (torrent.uploaded / (1024 * 1024)).toFixed(2);
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uploadStats.innerHTML = `Uploaded: ${uploaded} MB to ${totalPeers} peer(s)`;
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}, 1000);
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});
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let totalPeers = 0;
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const seenPeers = new Set();
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setInterval(async () => {
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for (const wire of torrent.wires) {
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let peerIdHash;
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try {
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peerIdHash = await sha256(wire.peerId);
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} catch (e) {
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peerIdHash = wire.peerId;
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}
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if (!seenPeers.has(peerIdHash)) {
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seenPeers.add(peerIdHash);
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totalPeers += 1;
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}
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}
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const uploaded = (torrent.uploaded / (1024 * 1024)).toFixed(2);
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uploadStats.innerHTML = `Uploaded: ${uploaded} MB to ${totalPeers} peer(s)`;
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}, 1000);
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});
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} catch (error) {
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console.error("Error sharing file:", error);
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}
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}
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function copyToClipboard() {
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const copyButton = document.getElementById("copyButton");
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const url = copyButton.getAttribute("data-url");
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navigator.clipboard
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.writeText(url)
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.then(() => {
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alert("URL copied to clipboard");
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})
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.catch((err) => {
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console.error("Failed to copy: ", err);
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});
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navigator.clipboard.writeText(url).catch((err) => {
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console.error("Failed to copy: ", err);
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alert("Failed to copy URL to clipboard. Please try again.");
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});
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}
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async function sha256(str) {
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@ -93,10 +102,11 @@ async function sha256(str) {
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.join("");
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}
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async function downloadFile() {
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async function downloadFile(trackerUrl) {
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const mnemonicInput = document.getElementById("mnemonicInput").value;
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const downloadProgressBar = document.getElementById("downloadProgressBar");
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const downloadButton = document.getElementById("downloadButton");
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const downloadResult = document.getElementById("downloadResult");
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if (!mnemonicInput) {
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alert("Please enter a mnemonic.");
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@ -109,89 +119,105 @@ async function downloadFile() {
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downloadResult.innerHTML = "Preparing incoming file transfer, please wait...";
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const rtcConfig = {
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iceServers: await getRTCIceServers(),
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};
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try {
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const rtcConfig = {
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iceServers: await getRTCIceServers(),
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};
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fetch(`/get-infohash/${mnemonicInput}`)
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.then((response) => response.json())
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.then((data) => {
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const torrentId = data.infoHash;
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const response = await fetch(`/get-infohash/${mnemonicInput}`);
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if (!response.ok) throw new Error("Failed to get infoHash");
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const data = await response.json();
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const torrentId = data.infoHash;
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const opts = {
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announce: [trackerUrl],
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rtcConfig: rtcConfig,
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};
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const opts = {
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announce: [trackerUrl],
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rtcConfig: rtcConfig,
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};
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client.add(torrentId, opts, (torrent) => {
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torrent.files[0].getBlob((err, blob) => {
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if (err) {
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const downloadResult = document.getElementById("downloadResult");
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downloadResult.innerHTML = `Error: ${err.message}`;
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return;
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}
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const url = URL.createObjectURL(blob);
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const a = document.createElement("a");
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a.href = url;
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a.download = torrent.files[0].name;
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a.click();
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const downloadResult = document.getElementById("downloadResult");
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downloadResult.innerHTML = `File downloaded: <strong>${torrent.files[0].name}</strong>`;
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});
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torrent.on("download", () => {
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const progress = Math.round(
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(torrent.downloaded / torrent.length) * 100
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);
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downloadProgressBar.style.width = `${progress}%`;
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downloadProgressBar.textContent = `${progress}%`;
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});
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});
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setInterval(() => {
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const downloadResult = document.getElementById("downloadResult");
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if (client.get(torrentId)) {
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const torrent = client.get(torrentId);
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const progress = Math.round(
|
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(torrent.downloaded / torrent.length) * 100
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);
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downloadResult.innerHTML = `Downloading:
|
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<strong>${torrent.files[0].name}</strong>
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<br>
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<br><strong>Status:</strong> ${
|
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torrent.done ? "Completed, seeding" : "Downloading"
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}
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<br><strong>Peers:</strong> ${torrent.numPeers}
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<br>
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<br><strong>Downloaded:</strong> ${(
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torrent.downloaded /
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(1024 * 1024)
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).toFixed(2)} MB / ${(torrent.length / (1024 * 1024)).toFixed(
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2
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)} MB (${progress}%)
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<br><strong>Speed:</strong> ${(
|
||||
torrent.downloadSpeed /
|
||||
(1024 * 1024)
|
||||
).toFixed(2)} MB/s
|
||||
<br><strong>ETA:</strong> ${torrent.timeRemaining} seconds
|
||||
<br>
|
||||
<br><strong>Uploaded:</strong> ${(
|
||||
torrent.uploaded /
|
||||
(1024 * 1024)
|
||||
).toFixed(2)} MB
|
||||
<br><strong>Ratio:</strong> ${torrent.ratio.toFixed(2)}`;
|
||||
client.add(torrentId, opts, (torrent) => {
|
||||
torrent.files[0].getBlob((err, blob) => {
|
||||
if (err) {
|
||||
downloadResult.innerHTML = `Error: ${err.message}`;
|
||||
return;
|
||||
}
|
||||
|
||||
downloadResult.innerHTML = "File not found. Please check the mnemonic.";
|
||||
}, 1000);
|
||||
const url = URL.createObjectURL(blob);
|
||||
const a = document.createElement("a");
|
||||
a.href = url;
|
||||
a.download = torrent.files[0].name;
|
||||
a.click();
|
||||
|
||||
downloadResult.innerHTML = `File downloaded: <strong>${torrent.files[0].name}</strong>`;
|
||||
});
|
||||
|
||||
torrent.on("download", () => {
|
||||
const progress = Math.round(
|
||||
(torrent.downloaded / torrent.length) * 100
|
||||
);
|
||||
downloadProgressBar.style.width = `${progress}%`;
|
||||
downloadProgressBar.textContent = `${progress}%`;
|
||||
});
|
||||
});
|
||||
|
||||
setInterval(() => {
|
||||
if (client.get(torrentId)) {
|
||||
const torrent = client.get(torrentId);
|
||||
const progress = Math.round(
|
||||
(torrent.downloaded / torrent.length) * 100
|
||||
);
|
||||
downloadResult.innerHTML = `Downloading:
|
||||
<strong>${torrent.files[0].name}</strong>
|
||||
<br>
|
||||
<br><strong>Status:</strong> ${
|
||||
torrent.done ? "Completed, seeding" : "Downloading"
|
||||
}
|
||||
<br><strong>Peers:</strong> ${torrent.numPeers}
|
||||
<br>
|
||||
<br><strong>Downloaded:</strong> ${(
|
||||
torrent.downloaded /
|
||||
(1024 * 1024)
|
||||
).toFixed(2)} MB / ${(torrent.length / (1024 * 1024)).toFixed(
|
||||
2
|
||||
)} MB (${progress}%)
|
||||
<br><strong>Speed:</strong> ${(
|
||||
torrent.downloadSpeed /
|
||||
(1024 * 1024)
|
||||
).toFixed(2)} MB/s
|
||||
<br><strong>ETA:</strong> ${torrent.timeRemaining} seconds
|
||||
<br>
|
||||
<br><strong>Uploaded:</strong> ${(
|
||||
torrent.uploaded /
|
||||
(1024 * 1024)
|
||||
).toFixed(2)} MB
|
||||
<br><strong>Ratio:</strong> ${torrent.ratio.toFixed(2)}`;
|
||||
return;
|
||||
}
|
||||
|
||||
downloadResult.innerHTML = "File not found. Please check the mnemonic.";
|
||||
}, 1000);
|
||||
} catch (error) {
|
||||
console.error("Error downloading file:", error);
|
||||
alert("Failed to download file. Please check the mnemonic and try again.");
|
||||
} finally {
|
||||
downloadButton.disabled = false;
|
||||
}
|
||||
}
|
||||
|
||||
document.addEventListener("DOMContentLoaded", () => {
|
||||
const configElement = document.getElementById("config");
|
||||
const trackerUrl = configElement.getAttribute("data-tracker-url");
|
||||
const mnemonic = configElement.getAttribute("data-mnemonic");
|
||||
|
||||
document
|
||||
.getElementById("uploadButton")
|
||||
.addEventListener("click", () => uploadFile(trackerUrl));
|
||||
document
|
||||
.getElementById("copyButton")
|
||||
.addEventListener("click", copyToClipboard);
|
||||
document
|
||||
.getElementById("downloadButton")
|
||||
.addEventListener("click", () => downloadFile(trackerUrl));
|
||||
|
||||
if (mnemonic) {
|
||||
const mnemonicInput = document.getElementById("mnemonicInput");
|
||||
const downloadButton = document.getElementById("downloadButton");
|
||||
|
|
|
|||
18
tracker.js
18
tracker.js
|
|
@ -1,8 +1,16 @@
|
|||
import { Server } from "bittorrent-tracker";
|
||||
import dotenv from "dotenv";
|
||||
|
||||
dotenv.config();
|
||||
|
||||
const PORT = process.env.TRACKER_PORT || 8106;
|
||||
const HOST = process.env.TRACKER_HOST || "localhost";
|
||||
|
||||
const port = Number(PORT);
|
||||
if (isNaN(port) || port <= 0) {
|
||||
throw new Error("Invalid TRACKER_PORT value. It must be a positive number.");
|
||||
}
|
||||
|
||||
const server = new Server({
|
||||
udp: false,
|
||||
http: false,
|
||||
|
|
@ -19,7 +27,13 @@ server.on("warning", (err) => {
|
|||
});
|
||||
|
||||
server.on("listening", () => {
|
||||
console.log(`Tracker is listening on http://${HOST}:${PORT}`);
|
||||
console.log(`Tracker is listening on ws://${HOST}:${PORT}`);
|
||||
});
|
||||
|
||||
server.listen(PORT);
|
||||
try {
|
||||
server.listen(port, HOST, () => {
|
||||
console.log(`Tracker server started on ws://${HOST}:${PORT}`);
|
||||
});
|
||||
} catch (err) {
|
||||
console.error(`Failed to start tracker server: ${err.message}`);
|
||||
}
|
||||
|
|
@ -29,13 +29,12 @@
|
|||
<div class="section" id="uploadSection">
|
||||
<h2>Share File</h2>
|
||||
<input type="file" id="fileInput" />
|
||||
<button id="uploadButton" onclick="uploadFile()">Share</button>
|
||||
<button id="uploadButton">Share</button>
|
||||
<div class="result" id="uploadResult"></div>
|
||||
<div class="result" id="uploadStats"></div>
|
||||
<button
|
||||
id="copyButton"
|
||||
style="display: none"
|
||||
onclick="copyToClipboard()"
|
||||
>
|
||||
Copy URL
|
||||
</button>
|
||||
|
|
@ -43,7 +42,7 @@
|
|||
<div class="section" id="downloadSection">
|
||||
<h2>Receive File</h2>
|
||||
<input type="text" id="mnemonicInput" placeholder="Enter mnemonic" />
|
||||
<button id="downloadButton" onclick="downloadFile()">Receive</button>
|
||||
<button id="downloadButton">Receive</button>
|
||||
<div class="progress" id="downloadProgress">
|
||||
<div class="progress-bar" id="downloadProgressBar">0%</div>
|
||||
</div>
|
||||
|
|
@ -71,10 +70,7 @@
|
|||
</p>
|
||||
</div>
|
||||
</div>
|
||||
<script>
|
||||
const trackerUrl = "<%= trackerUrl %>";
|
||||
const mnemonic = "<%= mnemonic %>";
|
||||
</script>
|
||||
<div id="config" data-tracker-url="<%= trackerUrl %>" data-mnemonic="<%= mnemonic %>" style="display: none;"></div>
|
||||
<script src="/js/index.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
|
|
|
|||
Loading…
Reference in a new issue