733 lines
28 KiB
JavaScript
733 lines
28 KiB
JavaScript
const net = require('net');
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const CryptoJS = require('crypto-js');
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const WTVSec = require('./includes/classes/WTVSec.js');
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const WTVShared = require('./includes/classes/WTVShared.js')['WTVShared'];
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/**
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* WebTV Client Simulator
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*
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* This simulator emulates a WebTV client connecting to a WebTV service
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* using the WTVP protocol with proper authentication and service discovery.
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*/
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class WebTVClientSimulator {
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constructor(host, port, ssid, url, outputFile = null, maxRedirects = 10, useEncryption = false, request_type_download = false) {
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this.host = host;
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this.port = port;
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this.ssid = ssid;
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this.url = url;
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this.request_type_download = request_type_download;
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this.outputFile = outputFile;
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this.maxRedirects = maxRedirects;
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this.useEncryption = useEncryption;
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this.encryptionEnabled = false;
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this.redirectCount = 0;
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this.userIdDetected = false;
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this.targetUrlFetched = false; // Prevent multiple target URL fetches
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this.services = new Map(); // Store service name -> {host, port} mappings
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this.wtvsec = null;
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this.wtvshared = new WTVShared();
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this.ticket = null;
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this.incarnation = 1;
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this.currentSocket = null;
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this.challengeResponse = null;
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this.initial_key = null; // Store initial key from wtv-initial-key header
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// Load minisrv config to get the initial shared key
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this.minisrv_config = this.wtvshared.readMiniSrvConfig(true, false);
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console.log(`WebTV Client Simulator starting...`);
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console.log(`Target: ${host}:${port}`);
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console.log(`SSID: ${ssid}`);
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console.log(`Target URL after auth: ${url}`);
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console.log(`Encryption: ${useEncryption ? 'enabled' : 'disabled'}`);
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if (outputFile) {
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console.log(`Output file: ${outputFile}`);
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}
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}
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/**
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* Start the simulation by connecting to wtv-1800:/preregister
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*/
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async start() {
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try {
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await this.makeRequest('wtv-1800', '/preregister');
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} catch (error) {
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console.error('Failed to start simulation:', error);
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}
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}
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/**
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* Make a WTVP request to a service
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*/
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async makeRequest(serviceName, path, data = null, skipRedirects = false) {
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return new Promise((resolve, reject) => {
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// Determine host and port for the service
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let targetHost = this.host;
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let targetPort = this.port;
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if (this.services.has(serviceName)) {
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const service = this.services.get(serviceName);
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targetHost = service.host;
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targetPort = service.port;
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}
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console.log(`\n--- Making request to ${serviceName}:${path} at ${targetHost}:${targetPort} ---`);
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const socket = new net.Socket();
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this.currentSocket = socket;
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let responseData = Buffer.alloc(0);
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socket.connect(targetPort, targetHost, () => {
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console.log(`Connected to ${targetHost}:${targetPort}`);
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let requestData;
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if (this.encryptionEnabled && this.wtvsec) {
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// Send encrypted request
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requestData = this.buildEncryptedRequest(serviceName, path, data);
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} else {
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// Send regular request
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requestData = this.buildRegularRequest(serviceName, path, data);
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}
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console.log('Sending request:');
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if (this.encryptionEnabled) {
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console.log('[ENCRYPTED REQUEST]');
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console.log(`Length: ${requestData.length} bytes`);
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} else {
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console.log(requestData.toString());
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}
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socket.write(requestData);
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});
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socket.on('data', (chunk) => {
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responseData = Buffer.concat([responseData, chunk]);
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console.log(`Received chunk: ${chunk.length} bytes`);
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// Check if we have a complete response
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if (this.encryptionEnabled) {
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// For encrypted responses, we need to handle differently
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this.handleEncryptedResponse(responseData, resolve, reject);
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} else {
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// Regular response handling
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const responseStr = responseData.toString();
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if (responseStr.includes('\n\n')) {
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console.log('Complete response detected, processing...');
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this.handleResponse(responseStr, resolve, reject, skipRedirects);
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}
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}
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});
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socket.on('close', () => {
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console.log('Connection closed');
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if (responseData.length > 0 && !this.encryptionEnabled) {
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const responseStr = responseData.toString();
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if (!responseStr.includes('\n\n')) {
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console.log('Processing incomplete response on close...');
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this.handleResponse(responseStr, resolve, reject, skipRedirects);
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}
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} else if (responseData.length > 0 && this.encryptionEnabled) {
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console.log('Processing encrypted response on close...');
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this.handleEncryptedResponse(responseData, resolve, reject);
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}
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});
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socket.on('error', (error) => {
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console.error('Socket error:', error);
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reject(error);
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});
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// Set timeout
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socket.setTimeout(30000, () => {
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console.log('Request timed out');
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socket.destroy();
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reject(new Error('Request timeout'));
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});
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});
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}
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/**
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* Build a regular (unencrypted) WTVP request
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*/
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buildRegularRequest(serviceName, path, data = null) {
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const method = data ? 'POST' : 'GET';
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let request = `${method} ${serviceName}:${path}\r\n`;
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// Add required headers
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request += `wtv-client-serial-number: ${this.ssid}\r\n`;
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request += `wtv-client-bootrom-version: 105\r\n`;
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request += `wtv-client-rom-type: US-LC2-disk-0MB-8MB\r\n`;
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request += `wtv-incarnation: ${this.incarnation}\r\n`;
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request += `wtv-show-time: 0\r\n`;
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request += `wtv-request-type: ${((this.request_type_download) ? 'download' : 'primary')}\r\n`;
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request += `wtv-system-cpuspeed: 166187148\r\n`;
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request += `wtv-system-sysconfig: 4163328\r\n`;
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request += `wtv-disk-size: 8006\r\n`;
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// Add challenge response if we have one
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if (this.challengeResponse) {
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request += `wtv-challenge-response: ${this.challengeResponse}\r\n`;
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console.log('Added challenge response to request');
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this.challengeResponse = null; // Clear challenge response after adding to request
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}
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// Add ticket if we have one
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if (this.ticket) {
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request += `wtv-ticket: ${this.ticket}\r\n`;
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}
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// Add content if POST
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if (data) {
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const content = typeof data === 'string' ? data : JSON.stringify(data);
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request += `Content-Length: ${content.length}\r\n`;
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request += `Content-Type: application/x-www-form-urlencoded\r\n`;
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request += `\r\n${content}`;
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} else {
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request += '\r\n';
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}
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return Buffer.from(request, 'utf8');
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}
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/**
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* Build an encrypted WTVP request
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*/
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buildEncryptedRequest(serviceName, path, data = null) {
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// First, check if this is the SECURE ON request
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if (serviceName === 'SECURE' && path === 'ON') {
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return Buffer.from('SECURE ON\r\n', 'utf8');
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}
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const method = data ? 'POST' : 'GET';
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let request = `${method} ${serviceName}:${path}\r\n`;
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// Add headers for encrypted requests
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request += `Accept-Language: en-US,en\r\n`;
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if (this.ticket) {
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request += `wtv-ticket: ${this.ticket}\r\n`;
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}
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request += `wtv-connect-session-id: ${Math.floor(Math.random() * 0xFFFFFFFF).toString(16)}\r\n`;
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request += `wtv-client-serial-number: ${this.ssid}\r\n`;
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request += `wtv-system-version: 7181\r\n`;
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request += `wtv-capability-flags: 10935ffc8f\r\n`;
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request += `wtv-client-bootrom-version: 2046\r\n`;
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request += `wtv-client-rom-type: US-LC2-disk-0MB-8MB\r\n`;
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request += `wtv-system-chipversion: 51511296\r\n`;
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request += `User-Agent: Mozilla/4.0 WebTV/2.2.6.1 (compatible; MSIE 4.0)\r\n`;
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request += `wtv-encryption: true\r\n`;
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request += `wtv-script-id: ${Math.floor(Math.random() * 0x7FFFFFFF) - 0x40000000}\r\n`;
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request += `wtv-script-mod: ${Math.floor(Math.random() * 0xFFFFFFFF)}\r\n`;
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request += `wtv-incarnation: ${this.incarnation}\r\n`;
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if (this.request_type_download) request += 'wtv-request-type: download\r\n';
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// Add content if POST
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if (data) {
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const content = typeof data === 'string' ? data : JSON.stringify(data);
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request += `Content-Length: ${content.length}\r\n`;
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request += `Content-Type: application/x-www-form-urlencoded\r\n`;
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request += `\r\n${content}`;
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} else {
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request += '\r\n';
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}
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// Encrypt the request using RC4 with key 0
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try {
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const requestBuffer = Buffer.from(request, 'utf8');
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const encryptedBuffer = this.wtvsec.Encrypt(0, requestBuffer);
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return Buffer.from(encryptedBuffer);
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} catch (error) {
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console.error('Error encrypting request:', error);
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return Buffer.from(request, 'utf8');
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}
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}
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/**
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* Handle encrypted response data
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*/
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handleEncryptedResponse(responseData, resolve, reject) {
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try {
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// Look for the double newline that separates headers from body
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const responseStr = responseData.toString('binary');
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const headerEndIndex = responseStr.indexOf('\n\n');
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if (headerEndIndex === -1) {
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// Not a complete response yet
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return;
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}
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// Split headers and body
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const headerSection = responseStr.substring(0, headerEndIndex);
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const bodyStart = headerEndIndex + 2;
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const bodyBuffer = responseData.slice(bodyStart);
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console.log('\nReceived encrypted response:');
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console.log('Headers:');
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console.log(headerSection);
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// Parse headers
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const lines = headerSection.split('\n');
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const statusLine = lines[0].replace('\r', '');
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console.log(`Status: ${statusLine}`);
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const headers = {};
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for (let i = 1; i < lines.length; i++) {
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const line = lines[i].replace('\r', '');
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const colonIndex = line.indexOf(':');
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if (colonIndex > 0) {
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const key = line.substring(0, colonIndex).toLowerCase();
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const value = line.substring(colonIndex + 1).trim();
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headers[key] = value;
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}
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}
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// Decrypt the body if we have encryption enabled
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let body = '';
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if (bodyBuffer.length > 0 && headers['wtv-encrypted'] === 'true' && this.wtvsec) {
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try {
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console.log('Decrypting response body...');
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const decryptedBuffer = this.wtvsec.Decrypt(1, bodyBuffer);
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body = Buffer.from(decryptedBuffer).toString('utf8');
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console.log('Body decrypted successfully');
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} catch (error) {
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console.error('Error decrypting response body:', error);
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body = bodyBuffer.toString('utf8');
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}
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} else {
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body = bodyBuffer.toString('utf8');
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}
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// Handle special headers
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this.processHeaders(headers);
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// Close current connection
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if (this.currentSocket) {
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this.currentSocket.destroy();
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this.currentSocket = null;
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}
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resolve({ headers, body, status: statusLine });
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} catch (error) {
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console.error('Error processing encrypted response:', error);
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reject(error);
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}
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}
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handleResponse(responseData, resolve, reject, skipRedirects = false) {
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console.log('\nReceived response:');
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console.log(responseData);
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try {
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// WTVP uses \n\n for header separation, not \r\n\r\n
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const [headerSection, body] = responseData.split('\n\n', 2);
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const lines = headerSection.split('\n');
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const statusLine = lines[0].replace('\r', ''); // Remove any \r characters
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console.log(`Status: ${statusLine}`);
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// Parse headers
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const headers = {};
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for (let i = 1; i < lines.length; i++) {
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const line = lines[i].replace('\r', ''); // Remove any \r characters
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const colonIndex = line.indexOf(':');
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if (colonIndex > 0) {
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const key = line.substring(0, colonIndex).toLowerCase();
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const value = line.substring(colonIndex + 1).trim();
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// Handle multiple headers with the same name (like wtv-service)
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if (headers[key]) {
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if (Array.isArray(headers[key])) {
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headers[key].push(value);
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} else {
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headers[key] = [headers[key], value];
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}
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} else {
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headers[key] = value;
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}
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}
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}
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// Handle special headers
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this.processHeaders(headers);
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// Close current connection before following wtv-visit
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if (this.currentSocket) {
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this.currentSocket.destroy();
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this.currentSocket = null;
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}
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// Check if user-id was detected (authentication successful) and target URL not yet fetched
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if (this.userIdDetected && !this.targetUrlFetched) {
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this.targetUrlFetched = true; // Set flag to prevent multiple fetches
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console.log(`\n*** Authentication complete! Now fetching target URL: ${this.url} ***`);
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setTimeout(() => {
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this.fetchTargetUrl()
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.then(resolve)
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.catch(reject);
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}, 100);
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return;
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}
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// Follow wtv-visit if present and not authenticated yet, and not skipping redirects
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if (headers['wtv-visit'] && !skipRedirects) {
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if (this.redirectCount >= this.maxRedirects) {
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console.log(`Maximum redirects (${this.maxRedirects}) reached, stopping`);
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resolve({ headers, body, status: statusLine, stopped: true });
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return;
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}
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this.redirectCount++;
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console.log(`Following wtv-visit (${this.redirectCount}/${this.maxRedirects}): ${headers['wtv-visit']}`);
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setTimeout(() => {
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this.followVisit(headers['wtv-visit'])
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.then(resolve)
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.catch(reject);
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}, 100); // Reduced timeout for faster response
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} else {
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if (skipRedirects && headers['wtv-visit']) {
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console.log(`Skipping wtv-visit redirect: ${headers['wtv-visit']}`);
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} else {
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console.log('No wtv-visit header found, resolving...');
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}
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resolve({ headers, body, status: statusLine });
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}
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} catch (error) {
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console.error('Error processing response:', error);
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reject(error);
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}
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}
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/**
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* Process special WTVP headers
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*/
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processHeaders(headers) {
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// Handle wtv-service headers (can be multiple)
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const wtvServices = headers['wtv-service'];
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if (wtvServices) {
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const serviceValues = Array.isArray(wtvServices) ? wtvServices : [wtvServices];
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for (const serviceValue of serviceValues) {
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if (serviceValue === 'reset') {
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console.log('Clearing service mappings');
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this.services.clear();
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} else {
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// Parse service definition: "name=service-name host=host port=port flags=0x00000001 connections=1"
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const nameMatch = serviceValue.match(/name=([^\s]+)/);
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const hostMatch = serviceValue.match(/host=([^\s]+)/);
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const portMatch = serviceValue.match(/port=([^\s]+)/);
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if (nameMatch && hostMatch && portMatch) {
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const serviceName = nameMatch[1];
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const host = hostMatch[1];
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const port = parseInt(portMatch[1]);
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this.services.set(serviceName, { host, port });
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console.log(`Registered service: ${serviceName} -> ${host}:${port}`);
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}
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}
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}
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}
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// Handle wtv-initial-key
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if (headers['wtv-initial-key']) {
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this.initial_key = headers['wtv-initial-key'];
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}
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// Handle wtv-challenge
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if (headers['wtv-challenge']) {
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console.log('Received wtv-challenge, processing...');
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if (!this.wtvsec) {
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console.log('No WTVSec instance, initializing with default key...');
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this.wtvsec = new WTVSec(this.minisrv_config, this.incarnation);
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}
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try {
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this.wtvsec.IssueChallenge();
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this.wtvsec.set_incarnation(headers["wtv-incarnation"]);
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const challengeResponse = this.wtvsec.ProcessChallenge(headers['wtv-challenge'], CryptoJS.enc.Base64.parse(this.initial_key));
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if (challengeResponse && challengeResponse.toString(CryptoJS.enc.Base64)) {
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console.log('Challenge processed successfully, preparing response');
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// We'll send the challenge response in the next request
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this.challengeResponse = challengeResponse.toString(CryptoJS.enc.Base64);
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//this.incarnation = this.wtvsec.incarnation;
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console.log('Setting wtv-challenge-response header for next request');
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} else {
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console.error('Failed to process challenge - no response generated');
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}
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} catch (error) {
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console.error('Error processing challenge:', error.message);
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}
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}
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// Handle wtv-ticket
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if (headers['wtv-ticket']) {
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console.log('Received wtv-ticket');
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this.ticket = headers['wtv-ticket'];
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}
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// Handle user-id header - indicates successful authentication
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if (headers['user-id']) {
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console.log(`*** Authentication successful! user-id detected: ${headers['user-id']} ***`);
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this.userIdDetected = true;
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// Enable encryption if requested and we have WTVSec
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if (this.useEncryption && this.wtvsec && !this.encryptionEnabled) {
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console.log('*** Enabling encryption after successful authentication ***');
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this.wtvsec.SecureOn(); // Initialize RC4 sessions
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this.encryptionEnabled = true;
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}
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return; // Stop processing other headers since we're authenticated
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}
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}
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/**
|
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* Follow a wtv-visit directive
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*/
|
|
async followVisit(visitUrl) {
|
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console.log(`Parsing wtv-visit URL: ${visitUrl}`);
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|
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// Parse the visit URL: service:/path or service:path
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const match = visitUrl.match(/^([\w-]+):\/?(.*)/);
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if (match) {
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const serviceName = match[1];
|
|
const path = '/' + (match[2] || '');
|
|
console.log(`Parsed service: ${serviceName}, path: ${path}`);
|
|
return await this.makeRequest(serviceName, path);
|
|
} else {
|
|
throw new Error(`Invalid wtv-visit URL: ${visitUrl}`);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fetch the target URL after authentication is complete
|
|
*/
|
|
async fetchTargetUrl() {
|
|
console.log(`Fetching target URL: ${this.url}`);
|
|
|
|
// If encryption is enabled, send SECURE ON first
|
|
if (this.encryptionEnabled) {
|
|
console.log('Sending SECURE ON command...');
|
|
try {
|
|
await this.makeRequest('SECURE ON', '', '', {});
|
|
console.log('Encryption successfully enabled');
|
|
} catch (error) {
|
|
console.error('Failed to enable encryption:', error.message);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
// Parse the target URL
|
|
const match = this.url.match(/^([\w-]+):\/?(.*)/);
|
|
if (match) {
|
|
const serviceName = match[1];
|
|
const path = '/' + (match[2] || '');
|
|
console.log(`Parsed target service: ${serviceName}, path: ${path}`);
|
|
|
|
try {
|
|
const result = await this.makeRequest(serviceName, path, null, true); // Skip redirects for target URL
|
|
|
|
// Handle the response
|
|
if (result.body) {
|
|
console.log('\n*** Target URL Response Body ***');
|
|
if (this.outputFile) {
|
|
await this.saveToFile(result.body);
|
|
console.log(`Content saved to: ${this.outputFile}`);
|
|
} else {
|
|
console.log(result.body);
|
|
}
|
|
} else {
|
|
console.log('No body content received from target URL');
|
|
}
|
|
|
|
console.log('\n*** Request completed successfully ***');
|
|
this.cleanup();
|
|
process.exit(0);
|
|
|
|
return result;
|
|
} catch (error) {
|
|
console.error('Error fetching target URL:', error);
|
|
throw error;
|
|
}
|
|
} else {
|
|
throw new Error(`Invalid target URL: ${this.url}`);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process the content response without following redirects
|
|
*/
|
|
processContentResponse(responseData, resolve, reject) {
|
|
try {
|
|
// WTVP uses \n\n for header separation
|
|
const [headerSection, body] = responseData.split('\n\n', 2);
|
|
const lines = headerSection.split('\n');
|
|
const statusLine = lines[0].replace('\r', '');
|
|
|
|
console.log(`Content Status: ${statusLine}`);
|
|
|
|
// Parse headers
|
|
const headers = {};
|
|
for (let i = 1; i < lines.length; i++) {
|
|
const line = lines[i].replace('\r', '');
|
|
const colonIndex = line.indexOf(':');
|
|
if (colonIndex > 0) {
|
|
const key = line.substring(0, colonIndex).toLowerCase();
|
|
const value = line.substring(colonIndex + 1).trim();
|
|
headers[key] = value;
|
|
}
|
|
}
|
|
|
|
// Close current connection
|
|
if (this.currentSocket) {
|
|
this.currentSocket.destroy();
|
|
this.currentSocket = null;
|
|
}
|
|
|
|
resolve({ headers, body: body || '', status: statusLine });
|
|
|
|
} catch (error) {
|
|
console.error('Error processing content response:', error);
|
|
reject(error);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Save content to file
|
|
*/
|
|
async saveToFile(content) {
|
|
const fs = require('fs').promises;
|
|
try {
|
|
await fs.writeFile(this.outputFile, content, 'utf8');
|
|
} catch (error) {
|
|
console.error('Error saving to file:', error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clean up resources
|
|
*/
|
|
cleanup() {
|
|
if (this.currentSocket) {
|
|
this.currentSocket.destroy();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse command line arguments
|
|
*/
|
|
function parseArgs() {
|
|
const args = process.argv.slice(2);
|
|
const config = {
|
|
host: '127.0.0.1',
|
|
port: 1615,
|
|
ssid: '8100000000000001',
|
|
url: 'wtv-home:/home',
|
|
outputFile: null,
|
|
maxRedirects: 10,
|
|
useEncryption: false,
|
|
request_type_download: false
|
|
};
|
|
|
|
for (let i = 0; i < args.length; i++) {
|
|
switch (args[i]) {
|
|
case '--host':
|
|
if (i + 1 < args.length) {
|
|
config.host = args[++i];
|
|
}
|
|
break;
|
|
case '--port':
|
|
if (i + 1 < args.length) {
|
|
config.port = parseInt(args[++i]);
|
|
}
|
|
break;
|
|
case '--ssid':
|
|
if (i + 1 < args.length) {
|
|
config.ssid = args[++i];
|
|
}
|
|
break;
|
|
case '--max-redirects':
|
|
if (i + 1 < args.length) {
|
|
config.maxRedirects = parseInt(args[++i]);
|
|
}
|
|
break;
|
|
case '--url':
|
|
if (i + 1 < args.length) {
|
|
config.url = args[++i];
|
|
}
|
|
break;
|
|
case '--file':
|
|
if (i + 1 < args.length) {
|
|
config.outputFile = args[++i];
|
|
}
|
|
break;
|
|
case '--download':
|
|
config.request_type_download = true;
|
|
break;
|
|
case '--encryption':
|
|
config.useEncryption = true;
|
|
break;
|
|
case '--help':
|
|
console.log(`
|
|
WebTV Client Simulator
|
|
|
|
Usage: node client_emu.js [options]
|
|
|
|
Options:
|
|
--host <ip> Target server IP address (default: 127.0.0.1)
|
|
--port <port> Target server port (default: 1615)
|
|
--ssid <ssid> WebTV client SSID (default: 8100000000000001)
|
|
--url <url> Target URL to fetch after authentication (default: wtv-home:/home)
|
|
--file <filename> Save response body to file instead of echoing to CLI
|
|
--max-redirects <num> Maximum number of wtv-visit redirects (default: 10)
|
|
--download Enable 'wtv-request-type: download' for diskmap testing)
|
|
--encryption Enable RC4 encryption after authentication
|
|
--help Show this help message
|
|
|
|
Example:
|
|
node client_emu.js --host 192.168.1.100 --port 1615 --ssid 8100000000000001 --url wtv-home:/home --file output.html
|
|
`);
|
|
process.exit(0);
|
|
}
|
|
}
|
|
|
|
return config;
|
|
}
|
|
|
|
/**
|
|
* Main execution
|
|
*/
|
|
async function main() {
|
|
const config = parseArgs();
|
|
const simulator = new WebTVClientSimulator(config.host, config.port, config.ssid, config.url, config.outputFile, config.maxRedirects, config.useEncryption, config.request_type_download);
|
|
|
|
// Handle graceful shutdown
|
|
process.on('SIGINT', () => {
|
|
console.log('\nShutting down...');
|
|
simulator.cleanup();
|
|
process.exit(0);
|
|
});
|
|
|
|
process.on('SIGTERM', () => {
|
|
console.log('\nShutting down...');
|
|
simulator.cleanup();
|
|
process.exit(0);
|
|
});
|
|
|
|
try {
|
|
await simulator.start();
|
|
} catch (error) {
|
|
console.error('Simulation failed:', error);
|
|
simulator.cleanup();
|
|
process.exit(1);
|
|
}
|
|
}
|
|
|
|
// Run the simulator if this file is executed directly
|
|
if (require.main === module) {
|
|
main();
|
|
} |