HttpWebResponse内容编码:身份

Question

我正在使用HttpWebRequest发送和接收Web请求.

在响应之后,通常是gzip内容编码.有些计算机会收到deflate编码.其他一些计算机将接收身份编码.

我把它设置为读取gzip和deflate编码但不确定如何读取身份编码.

string ReturnString = "";

HttpWebRequest HttpWebRequest = (HttpWebRequest)WebRequest.Create(URL);
HttpWebRequest.ProtocolVersion = Version.Parse("1.1");
WebHeaderCollection WebHeaderCollection = HttpWebRequest.Headers;
HttpWebRequest.Accept = "application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
WebHeaderCollection.Add("Accept-Language: en-us");
WebHeaderCollection.Add("Accept-Encoding: gzip, deflate");
HttpWebRequest.KeepAlive = true;
HttpWebResponse HttpWebResponse = (HttpWebResponse)HttpWebRequest.GetResponse();
using (var mem = HttpWebResponse.GetResponseStream())
{
    if (HttpWebResponse.ContentEncoding.ToLower().Contains("gzip"))
    {
        using (var gzip = new GZipStream(mem, CompressionMode.Decompress))
        {
            using (var reader = new StreamReader(gzip))
            {
                ReturnString = reader.ReadToEnd();
            }
        }
    }
    else if (HttpWebResponse.ContentEncoding.ToLower().Contains("deflate"))
    {
        using (var gzip = new DeflateStream(mem, CompressionMode.Decompress))
        {
            using (var reader = new StreamReader(gzip))
            {
                ReturnString = reader.ReadToEnd();
            }
        }
    }
}
WebHeaderCollection ResponseHeaders = HttpWebResponse.Headers;
HttpWebResponse.Close();

编辑:另一台PC收到"Transfer-Encoding:chunked"而没有内容编码,如果我正确读取它应该替换Content Encoding.http://en.wikipedia.org/wiki/Chunked_transfer_encoding.

有没有办法捕获任何类型的编码？

Answer 1

RFC:

身分

默认(标识)编码; 没有任何转变的使用.此内容编码仅在Accept-Encoding标头中使用,并且不应在Content-Encoding标头中使用.

至于你的编辑:你不应该关心被分块的响应:使用string resp = new StreamReader(response.GetResponseStream()).ReadToEnd()应该给你所有的响应数据.