所以我想利用Brotli,但我不熟悉
Python和C ..
我知道有人把它编译成Windows.exe.但是如何将它包装到DLL或.NET应用程序可以引用的东西？我知道有IronPython,我只是将所有的源文件导入IronPython项目,并编写一个调用到Brotli API并暴露它们的.NET适配器？但实际上,我甚至不确定Brotli API是Python还是C ..
看看tools / bro.cc,看起来像“entry”方法在encode.c和decode.c中定义为BrotliCompress(),BrotliDecompressBuffer(),BrotliDecompressStream()方法.所以我想可以从C类编译一个DLL.
解决方法
您可以使用提供完整流支持的Brotli.NET.
github：https://github.com/XieJJ99/brotli.net/.
Nuget：https://www.nuget.org/packages/Brotli.NET/.
将流压缩到brotli数据：
public Byte[] Encode(Byte[] input)
{
Byte[] output = null;
using (System.IO.MemoryStream msInput = new System.IO.MemoryStream(input))
using (System.IO.MemoryStream msOutput = new System.IO.MemoryStream())
using (BrotliStream bs = new BrotliStream(msOutput,System.IO.Compression.CompressionMode.Compress))
{
bs.SetQuality(11);
bs.SetWindow(22);
msInput.CopyTo(bs);
bs.Close();
output = msOutput.ToArray();
return output;
}
}
解压缩一个brotli流：
public Byte[] Decode(Byte[] input)
{
using (System.IO.MemoryStream msInput = new System.IO.MemoryStream(input))
using (BrotliStream bs = new BrotliStream(msInput,System.IO.Compression.CompressionMode.Decompress))
using (System.IO.MemoryStream msOutput = new System.IO.MemoryStream())
{
bs.CopyTo(msOutput);
msOutput.Seek(0,System.IO.SeekOrigin.Begin);
output = msOutput.ToArray();
return output;
}
}
要在Web应用程序中支持动态压缩,请在Global.asax.cs中添加如下代码：
protected void Application_PostAcquireRequestState(object sender,EventArgs e)
{
var app = Context.ApplicationInstance;
String acceptEncodings = app.Request.Headers.Get("Accept-Encoding");
if (!String.IsNullOrEmpty(acceptEncodings))
{
System.IO.Stream baseStream = app.Response.Filter;
acceptEncodings = acceptEncodings.ToLower();
if (acceptEncodings.Contains("br") || acceptEncodings.Contains("brotli"))
{
app.Response.Filter = new Brotli.BrotliStream(baseStream,System.IO.Compression.CompressionMode.Compress);
app.Response.AppendHeader("Content-Encoding","br");
}
else
if (acceptEncodings.Contains("deflate"))
{
app.Response.Filter = new System.IO.Compression.DeflateStream(baseStream,"deflate");
}
else if (acceptEncodings.Contains("gzip"))
{
app.Response.Filter = new System.IO.Compression.GZipStream(baseStream,"gzip");
}
}
}
