1. #!/usr/bin/env node
  3. const https = require('https');
  4. const http = require('http');
  5. const { program } = require('commander');
  7. program
  8. .version('1.0.0')
  9. .description('Strips metadata from HTTP responses.')
  10. .option('-u, --url <url>', 'The URL to fetch.')
  11. .option('-o, --output <file>', 'The file to save the response to.')
  12. .parse(process.argv);
  14. const options = program.opts();
  16. async function stripMetadata(url) {
  17. return new Promise((resolve, reject) => {
  18. const protocol = url.startsWith('https') ? https : http;
  20. protocol.get(url, (res) => {
  21. // Remove headers, including metadata
  22. const headers = {};
  23. for (const key in res.headers) {
  24. if (!['content-type', 'content-length', 'date', 'server'].includes(key)) {
  25. headers[key] = res.headers[key];
  26. }
  27. }
  29. let data = '';
  30. res.on('data', (chunk) => {
  31. data += chunk;
  32. });
  34. res.on('end', () => {
  35. resolve(data);
  36. });
  38. res.on('error', (err) => {
  39. reject(err);
  40. });
  41. }).on('error', (err) => {
  42. reject(err);
  43. });
  44. });
  45. }
  47. async function main() {
  48. if (!options.url) {
  49. console.error('Error: URL is required. Use -u or --url.');
  50. process.exit(1);
  51. }
  53. try {
  54. const responseData = await stripMetadata(options.url);
  56. if (options.output) {
  57. require('fs').writeFileSync(options.output, responseData);
  58. console.log(`Response saved to ${options.output}`);
  59. } else {
  60. console.log(responseData);
  61. }
  62. } catch (error) {
  63. console.error('Error:', error);
  64. process.exit(1);
  65. }
  66. }
  68. main();

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