Binary library

Lets you download files as a binary stream, and upload them as multipart/form-data. Userscript library.

Tính đến 20-12-2014. Xem phiên bản mới nhất.

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greasyfork.org/scripts/7079/28929/Binary%20library.js

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

Bạn sẽ cần cài đặt một tiện ích mở rộng như Tampermonkey hoặc Violentmonkey để cài đặt kịch bản này.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name           Binary library
// @namespace      [email protected]
// @description    Lets you download files as a binary stream, and upload them as multipart/form-data. Userscript library.
// @include        *
// @grant          GM_xmlhttpRequest
// @license        cc-by-sa
// ==/UserScript==

BinaryRes = {};

BinaryRes.get = function (object) {
  var request = {
    method: 'GET',
    url: object.url,
    overrideMimeType: 'text/plain; charset=x-user-defined',
    binary: true,
    onload: object.callback,
  };

  if (object.override) {
    for (var attr in object.override) request[attr] = object.override[attr]
  }

  GM_xmlhttpRequest(request);
}

BinaryRes._clean = function (bytes) {
  var binarray = [];
  [].forEach.call(bytes, function (byte) {
      binarray.push(String.fromCharCode(byte.charCodeAt(0) & 0xff));
    });
  return binarray.join('');
}

BinaryRes._bound = function() {
  var z = 98729145294692;  var a = 12400722650394;
  return Array(28).join('-') + Math.floor(Math.random() * (z - a)) + a;
}

BinaryRes._typeof = function(value) {
  // from crockford
  var s = typeof value;
  if (s === 'object') {
    if (value) {
      if (typeof value.length === 'number' &&
        !(value.propertyIsEnumerable('length')) &&
        typeof value.splice === 'function') {
        s = 'array';
      }
    } else {
      s = 'null';
    }
  }
  return s;  
}

BinaryRes.post = function (obj) {
  // url, callback, data
  var build = [];
  var boundary = BinaryRes._bound();  
  for (var name in obj.data) {
    if (obj.data.hasOwnProperty(name)) {
      build.push('--' + boundary);
      var disp = 'Content-Disposition: form-data; name="' + name + '"';
      if (BinaryRes._typeof(obj.data[name]) == 'object') {
        var value = BinaryRes._clean(obj.data[name].value);
        if (obj.data[name].filename)
          disp += '; filename="' + obj.data[name].filename + '"';
        build.push(disp);
        build.push('Content-type: ' + obj.data[name].type);
      } else {
        var value = obj.data[name];
        build.push(disp);
      }
      build.push('');
      build.push(value);
    }
  }
  build.push('--' + boundary + '--');
  var data = build.join('\r\n');
  var request = {
    method: 'POST',
    url: obj.url,
    binary: true,
    headers: {
      "Content-Type": 'multipart/form-data; boundary=' + boundary,
      "Content-Length": data.length
    },
    data: data,
    onload: obj.callback
  };
  if (obj.override) {
    for (var attr in obj.override) request[attr] = obj.override[attr]
  }
  GM_xmlhttpRequest(request);
}

BinaryRes.guessType = function(stream) {
  if (!stream) return;
  var dict = [
    [0, 3, '\xFF\xD8\xFF', 'image/jpeg'],
    [1, 4, 'PNG', 'image/png'],
    [0, 3, 'GIF', 'image/gif'],
    [0, 4, '%PDF', 'application/pdf'],
  ]
  stream = BinaryRes._clean(stream);
  for (var ii = 0; ii < dict.length; ii++) {
    if (stream.slice(dict[ii][0], dict[ii][1]) === dict[ii][2])
      return dict[ii][3];
  }
}