MIME Type detector.

[yuri-kiss]

Someone should make an extension to detect mime types like:
hello is text/plain;charset=UTF-8, and <svg /> is image/svg+xml, and so on.

[Flappy25]

Got it!

(function (Scratch) {
  'use strict';

  class MimeTypeDetector {
    getInfo() {
      return {
        id: 'mimeTypeDetector',
        name: 'MIME Type Detector',
        blocks: [
          {
            opcode: 'detectMimeType',
            blockType: Scratch.BlockType.REPORTER,
            text: 'detect MIME type of [TEXT]',
            arguments: {
              TEXT: {
                type: Scratch.ArgumentType.STRING,
                defaultValue: 'Hello, world!'
              }
            }
          }
        ]
      };
    }

    detectMimeType(args) {
      const text = args.TEXT || '';

      if (text.startsWith('<svg')) {
        return 'image/svg+xml';
      } else if (text.startsWith('<?xml')) {
        return 'application/xml';
      } else if (text.startsWith('{')) {
        return 'application/json';
      } else if (text.startsWith('[')) {
        return 'application/json';
      } else if (/^[\s\S]+<html/i.test(text)) {
        return 'text/html';
      } else if (/^[\s\S]+<body/i.test(text)) {
        return 'text/html';
      } else {
        return 'text/plain;charset=UTF-8';
      }
    }
  }

  Scratch.extensions.register(new MimeTypeDetector());
})(Scratch);

GG EZ

[Flappy25]

It isn't perfect tho

[yuri-kiss]

what abt zip and images lol

[yuri-kiss]

i guess fileheaders would work
https://en.wikipedia.org/wiki/List_of_file_signatures