当IdHttp遇上Transfer-Encoding: chunked

[Bosman]

C++ Buider 2009

用idhttp Post一个表单,比如:

try
{
dt=(double)Now();//dt为double型
Http->Post(PostWeb,PostParam,HttpStream);
t=((double)Now()-dt)*86400000;
MainForm->MemoInfo->Lines->Add(FloatToStr(t));//使用时间(毫秒) }
catch(Exception &e)
{
MainForm->MemoInfo->Lines->Add(Http->ResponseText+" "+e.Message);
return -2;
}
Post的内容很少.但Post后服务器返回Transfer-Encoding: chunked的编码内容.并且内容也很短,不到300字节.

idhttp似乎在处理返回Transfer-Encoding: chunked编码这方面内容特别慢.
以上测试基本都在5秒以上才返回.同一网站,如果不是返回Transfer-Encoding: chunked编码的,不用一秒就返回.

上网找过资料,idhttp遇到响应是Transfer-Encoding: chunked编码的,只有等服务器与自己连接关闭才返回.

以上测试如下:
开始Post
6:31:22 AM 状态=Disconnecting.
6:31:22 AM 状态=Disconnected.
6:31:22 AM 状态=Resolving hostname www.aa3ew.com.
6:31:22 AM 状态=Connecting to 63.220.135.26.
6:31:22 AM 状态=Connected.//连接上
6:31:27 AM 状态=Disconnected.//读Transfer-Encoding: chunked内容结束
4996.00048642606 //消耗时间差不多功能5秒,甚至更长..

我的问题是:idhttp遇上Transfer-Encoding: chunked,处理是不是有Bug??
或是有什么方法加快处理接收Transfer-Encoding: chunked 编码的内容,不用等到服务器与idhttp关闭连接才返回.

[Bosman]

老妖啊..你快来啊.

[jone7319]

帮你顶一下，我是自己写个类来完成的，Indy的组件有时会遇到一些莫名其妙的问题

[Bosman]

Added TIdEventStream class. Primarily for use with TIdHTTP when dealing with chunked responses that are endless.

[My_Love]

只找到这一个理解HTTP协议中的"Transfer-Encoding: chunked"，不知LZ是否看过。

[My_Love]

{但从Indy的代码来看，与上面协议显然不一致。}
  begin
    if AResponseContent <> nil then
    begin
      if Response.ContentLength <> 0 then
      begin
        ReadStream(AResponseContent, Response.ContentLength);
      end
      else
      begin
        if AnsiPos('chunked', Response.ExtraHeaders.Values['Transfer-Encoding'])
          > 0 then {do not localize}
        begin
          DoStatus(hsText, [RSHTTPChunkStarted]);
          Size := ChunkSize;
          while Size > 0 do
          begin
            ReadStream(AResponseContent, Size);
            ReadLn;
            Size := ChunkSize;
          end;
          ReadLn;
        end
        else
        begin
          ReadStream(AResponseContent, -1, True);
        end;
      end;
    end;
  end;

[Bosman]

代码我也看过.
idhttp执行时,有时是返回超时,实在上已post成功.有时post不成功,但返回404错误.