使用内置工具在 Windows 2000+ 上将二进制文件编码为文本

Question

我可以通过 Citrix 远程桌面访问运行 Windows 2000 的远程服务器。该服务器无法访问任何互联网。传输数据的唯一方法是通过远程桌面复制文本。出于某种原因，复制文件不起作用，只能复制文本，但至少可以达到 10Mb。

是否有任何内置工具（在 Windows 2000 中）可以帮助我将二进制文件编码和解码为文本（Base64、uEncode、hex 等任何内容……）？

Answer 1

是的，其实。

从 cmd.exe，

要对文件进行编码：certutil -encode inputFileName encodedOutputFileName

要解码文件：certutil -decode encodedInputFileName decodedOutputFileName

Answer 2

这是我编写的基于 JScript 的脚本，它可以将二进制文件转换为十六进制表示，反之亦然。将代码保存为HexEncoder.js，或任何您想要的名称，只要它具有.js扩展名即可。

// Original script written by paulkienitz, 20110301
// http://www.codeproject.com/Messages/3718403/a-shorter-and-quicker-way-modified.aspx

// Check the parameters count
if (WScript.Arguments.length < 3)
{
    WScript.Quit(2);
}

// Ensure the action parameter is long enough
if (WScript.Arguments(0).length < 2)
{
    WScript.Quit(3);
}

// Detect invalid characters
var action = WScript.Arguments(0).toUpperCase().charCodeAt(1);

switch (action)
{
    // 'D' or 'E'
    case 0x44:
    case 0x45:
        break;

    default:
        WScript.Quit(3);
        break;       
}

var fso = new ActiveXObject("Scripting.FileSystemObject");
var source = WScript.Arguments(1).replace("\\", "\\\\");

// Check whether the source file actually exists
if (!fso.FileExists(source))
{
    WScript.Quit(4);
}

var dest = WScript.Arguments(2).replace("\\", "\\\\");

// When we read a binary stream as ISO 8859-1 (Latin 1), we should get a
// string where each charCodeAt value matches the byte from the stream.
// Unfortunately Windows won't give you Latin 1 -- when you ask for it,
// you get code page 1252, which has extra characters stuck in for byte
// values from 128 to 159. These two strings allow us to translate between
// the bogus Windows characters and the original byte values.
var bogusWindows1252Chars =
    "\u20AC\u201A\u0192\u201E\u2026\u2020\u2021" +
    "\u02C6\u2030\u0160\u2039\u0152\u017D" +
    "\u2018\u2019\u201C\u201D\u2022\u2013\u2014" +
    "\u02DC\u2122\u0161\u203A\u0153\u017E\u0178";

// No translation is necessary for characters 0x81, 0x8D, 0x8F, 0x90, or 0x9D
var correctLatin1Chars =
    "\u0080\u0082\u0083\u0084\u0085\u0086\u0087" +
    "\u0088\u0089\u008A\u008B\u008C\u008E" +
    "\u0091\u0092\u0093\u0094\u0095\u0096\u0097" +
    "\u0098\u0099\u009A\u009B\u009C\u009E\u009F";
    
if (action == 0x44) // D
{
    decode(source, dest);
}
else if (action = 0x45) // E
{
    encode(source, dest);
}

// This turns a string read as codepage 1252 into a boxed string with a
// byteAt method.
function binaryString(str)
{
    // Always return an object with a .length
    var r = str ? new String(str) : new String();
    
    r.byteAt = function(index)
    {
        var value = this.charCodeAt(index);

        // Translate character back to originating Windows-1252 byte value
        if (value > 0xff)
        {
            var p = bogusWindows1252Chars.indexOf(this.charAt(index));
            value = correctLatin1Chars.charCodeAt(p);
        }

        // Convert the value to hexadecimal
        var hex = value.toString(16);

        return (hex.length == 2) ? hex : "0" + hex;
    };

    return r;
}
 
// Does reverse translation from bytes back to Windows-1252 characters.
function fromByte(hex)
{
    var c = String.fromCharCode(parseInt(hex, 16));
    var p = correctLatin1Chars.indexOf(c);
    return (p == -1) ? c : bogusWindows1252Chars.charAt(p);
}

function encode(source, dest)
{
    var stream = new ActiveXObject("ADODB.Stream");
    stream.Type = 2 // adTypeText
    stream.Charset = "iso-8859-1"; // actually Windows codepage 1252
    stream.Open();
    stream.LoadFromFile(source);

    var chunkSize = 4096;
    encodedFile = fso.OpenTextFile(dest, 2, true); // 2 = ForWriting
    
    while (!stream.EOS)
    {
        var s = binaryString(stream.ReadText(chunkSize));
        var tempArray = new Array();

        for (var i = 0; i < s.length; i++)
        {
            tempArray[i] = s.byteAt(i);
        }

    var hexString = tempArray.join("");

        if (hexString.length > 0)
        {
            encodedFile.Write(hexString);
        }
    }

    encodedFile.Close();
    stream.Close();    
}

function decode(source, dest)
{
    var chunkSize = 8192;
    var encodedFile = fso.OpenTextFile(source, 1); // 1 = ForReading
    var decodedFile = fso.OpenTextFile(dest, 2, true); // 2 = ForWriting
    
    while (!encodedFile.AtEndOfStream)
    {
        var hexString = encodedFile.Read(chunkSize);
        var tempArray = new Array();
        
        for (var i = 0; i < hexString.length; i += 2)
        {
            tempArray[i >> 1] = fromByte(hexString.substring(i, i + 2));
        }

        var s = tempArray.join("");

        if (s.length > 0)
        {
            decodedFile.Write(s);
        }
    }

    decodedFile.Close();
    encodedFile.Close();
}

句法

对二进制文件进行编码：

cscript /nologo /e:jscript HexEncoder.js /e "binary file" "output file"

要恢复：

cscript /nologo /e:jscript HexEncoder.js /d "encoded file" "binary file"

示例用法

以下命令将编码notepad.exe并将输出保存到桌面：

cscript /nologo /e:jscript HexEncoder.js /e "%windir%\notepad.exe" "%userprofile%\Desktop\notepad.exe-hex.txt"

已知限制

• 编码文件的大小是原始文件的两倍。

• 该脚本最适合小文件，例如 1024 KiB 以下。

  最终，您可以使用上面的脚本传输一些第三方编码器来解决这些限制。