/// <summary>
/// Http 请求处理
/// </summary>
/// <param name="context"></param>
private bool HttpProcess(HttpServerContext context)
{
try
{
var status = HttpStatusCode.OK;
if (this.handler != null)
{
try
{
this.handler.Process(context);
status = context.Status;
}
catch (Exception e)
{
status = HttpStatusCode.InternalServerError;
context.Content = e.Message;
this.OnError(e);
}
}
else if (this.callback != null)
{
try
{
status = this.callback(context);
}
catch (Exception e)
{
status = HttpStatusCode.InternalServerError;
context.Content = e.Message;
this.OnError(e);
}
}
else
{
context.Content = "no set callback or handler";
status = HttpStatusCode.ServiceUnavailable;
}
//非异步响应
if (context.ChunkWriteStatus == HttpServerChunkStatus.NoBegin)
{
if (status != HttpStatusCode.OK && string.IsNullOrEmpty(context.Content) && context.ContentBuffer == null)
{
context.Content = status.ToString();
}
context.Response(status);
}
else
{
//等待结束写入
context.chunkWriteEvent.WaitOne();
context.chunkWriteEvent.Close();
}
}
finally
{
//进行必要的资源清理
context.Clear();
}
return(context.KeepAlive && context.Socket.Connected);
}
/// <summary>
/// receive
/// </summary>
/// <exception cref="InvalidDataException"></exception>
/// <exception cref="IOException"></exception>
/// <returns>is success</returns>
public bool Receive()
{
//first boundary
var line_data = this.reader.ReadByteLine();
if (this.CompareBoundary(line_data))
{
while (this.isEnd == false)
{
if (this.ParsePart() == false)
{
return(false);
}
this.context.UploadedLength = this.reader.ReadAllLength;
}
}
else if (this.CompareBoundaryEnd(line_data))
{
}
else
{
throw new InvalidDataException("unknown format of content");
}
//
this.context.UploadedLength = this.reader.ReadAllLength;
//check content length
if (this.reader.ReadAllLength == this.contentLength)
{
return(true);
}
else
{
if (string.IsNullOrEmpty(context.Content) && context.ContentBuffer == null)
{
context.Content = "end of unfinished";
}
context.Response(HttpStatusCode.BadRequest);
return(false);
}
}
/// <summary>
/// 解析POST数扰
/// </summary>
/// <param name="socket"></param>
/// <param name="context"></param>
/// <returns>是否成功</returns>
protected virtual bool ParsePostData(Socket socket, HttpServerContext context)
{
var success = false;
var contentLength = 0;
int.TryParse(context.RequestHeader["Content-Length"], out contentLength);
if (contentLength > context.MaxRequestContentLength)
{
//请求主体超过限制
if (string.IsNullOrEmpty(context.Content) && context.ContentBuffer == null)
{
context.Content = "Request Entity Too Large";
}
context.Response(HttpStatusCode.RequestEntityTooLarge);
}
else if (contentLength > 0)
{
string contentType = context.RequestHeader["Content-Type"];
if (contentType == null)
{
context.PostData = SocketHelper.Receive(socket, contentLength);
success = true;
}
else if ("application/x-www-form-urlencoded".Equals(contentType, StringComparison.OrdinalIgnoreCase))
{
var data = SocketHelper.Receive(socket, contentLength);
var postdata = this.encoding.GetString(data);
UriHelper.ParseQueryString(postdata, this.encoding, context.Form);
success = true;
}
else if (contentType.IndexOf("multipart/form-data", StringComparison.OrdinalIgnoreCase) != -1)
{
//"multipart/form-data; boundary=---------------------boundary123data"
var boundary = contentType.Substring(contentType.IndexOf("boundary=") + 9);
var receiver = new HttpServerMultipartReceiver(socket, boundary, context, contentLength);
try
{
return(receiver.Receive());
}
catch (Exception exception)
{
//请求主体超过限制
if (string.IsNullOrEmpty(context.Content) && context.ContentBuffer == null)
{
context.Content = "Paser Post Data Failure " + exception.Message;
}
context.Response(HttpStatusCode.BadRequest);
}
}
else
{
context.PostData = SocketHelper.Receive(socket, contentLength);
success = true;
}
}
else
{
//要求必要的 Content-Length
if (string.IsNullOrEmpty(context.Content) && context.ContentBuffer == null)
{
context.Content = "Require Content-Length";
}
context.Response(HttpStatusCode.LengthRequired);
}
return(success);
}
