.net core 中的压缩文件，带密码

Question

I'm trying to generate zip (or other compression formats) files in .net core with password, but I can't find any tool that does not come without a cost.

I've tried System.IO.Compression but it doesn't have a method with password.

Answer 1

Using the SharpZipLib.NETStandard NuGet package.

public async Task<byte[]> ZipAsync(IEnumerable<KeyValuePair<string, Stream>> files, string mime, string password)
{
    ExceptionHelper.ThrowIfNull(nameof(files), files);
    ExceptionHelper.ThrowIfNull(nameof(mime), mime);

    using (var output = new MemoryStream())
    {
        using (var zipStream = new ZipOutputStream(output))
        {
            zipStream.SetLevel(9);

            if (!string.IsNullOrEmpty(password))
            {
                zipStream.Password = password;
            }

            foreach (var file in files)
            {
                var newEntry = new ZipEntry($"{file.Key}.{mime}") { DateTime = DateTime.Now };
                zipStream.PutNextEntry(newEntry);

                await file.Value.CopyToAsync(zipStream);
                zipStream.CloseEntry();
            }
        }

        return output.ToArray();
    }
}

Answer 2

好消息是DotNetZip<\/code>现在支持 .net Core。检查Nuget<\/a>以获取更多详细信息。 （同时 System.IO.Compression 仍然不支持密码保护）

我在 .Net Core 3.1 中使用了 1.16.0 版本，效果很好。

简要教程：<\/em>

using (var zip = new ZipFile())
                {
                    zip.Password = pwd;
                    zip.AddEntry(FileA_Name, FileA_Content);
                    zip.AddEntry(FileB_Name, FileB_Content);
                    MemoryStream output = new MemoryStream();
                    zip.Save(output);
                    return File(output.ToArray(), "application/zip", Zip_Name);
                }