HttpClientRequest Class

Summary

Allows reading and decoding HTTP values sent by a client.

Syntax
C#
VB
C++
public class HttpClientRequest 
  
Public Class HttpClientRequest  
public ref class HttpClientRequest  

Remarks

The HttpClientRequest can read client data received in chunks by calling the Process method multiple times with the chunk data.

The HttpClientRequest support HTTP version 1.1

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Jpip; 
using Leadtools.Jpip.HttpServer; 
using Leadtools.Jpip.RequestDecoder; 
using Leadtools.Jpip.RequestEncoder; 
using Leadtools.Jpip.Client.WinForms; 
using Leadtools.Jpip.Client.InteractiveDecoder; 
using Leadtools.Jpip.Server; 
using Leadtools.Jpip.Logging; 
 
public void ProcessClientRequests() 
{ 
   Leadtools.Examples.Support.SetLicense(); 
   HttpClientRequest clientRequest = null; 
   HttpRequestDecoder decoder = null; 
   Socket client; 
   client = GetClientSocket(); 
   clientRequest = new HttpClientRequest(); 
   byte[] clientData; 
   int received; 
 
   do 
   { 
      clientData = new byte[client.ReceiveBufferSize]; 
      received = client.Receive(clientData); 
      clientRequest.Process(clientData, 0, received); 
   } while (clientRequest.Execute); //receive data until a complete request is received 
 
   Console.WriteLine("Client request received: {0}", clientRequest.CompleteMessage); 
   File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "ServerRequests.dat"), clientRequest.BodyData); 
   decoder = new HttpRequestDecoder(clientRequest); 
   Console.WriteLine("Server will process client image {0}", decoder.Fields.RequestTargetFields.Target); 
   //Process client request... 
   client.Close(); 
} 
 
private Socket GetClientSocket() 
{ 
   Socket listenSocket = new Socket(AddressFamily.InterNetwork, 
                                     SocketType.Stream, 
                                     ProtocolType.Tcp); 
   IPAddress hostIP = IPAddress.Parse("127.0.0.1"); 
   int port = 107; 
   IPEndPoint ep = new IPEndPoint(hostIP, port); 
   listenSocket.Bind(ep); 
   // start listening 
   listenSocket.Listen(10); 
   //a client should send a request to the listening address 
   Socket _client = listenSocket.Accept(); 
   listenSocket.Close(); 
   return _client; 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Jpip 
Imports Leadtools.Jpip.HttpServer 
Imports Leadtools.Jpip.RequestDecoder 
Imports Leadtools.Jpip.RequestEncoder 
Imports Leadtools.Jpip.Client.WinForms 
Imports Leadtools.Jpip.Client.InteractiveDecoder 
Imports Leadtools.Jpip.Server 
Imports Leadtools.Jpip.Logging 
 
Public Class HttpServerCommunication 
   Public Sub ProcessClientRequests() 
 
      Dim clientRequest As HttpClientRequest = Nothing 
      Dim decoder As HttpRequestDecoder = Nothing 
      Dim client As Socket 
 
      client = GetClientSocket() 
      clientRequest = New HttpClientRequest() 
      Dim clientData As Byte() 
 
      Dim received As Integer 
 
      Do 
         clientData = New Byte(client.ReceiveBufferSize - 1) {} 
 
         received = client.Receive(clientData) 
 
 
         clientRequest.Process(clientData, 0, received) 
 
      Loop While clientRequest.Execute 'receive data until a complete request is received 
 
      Console.WriteLine("Client request received: {0}", clientRequest.CompleteMessage) 
 
      File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "ServerRequests.dat"), clientRequest.BodyData) 
      decoder = New HttpRequestDecoder(clientRequest) 
 
      Console.WriteLine("Server will process client image {0}", decoder.Fields.RequestTargetFields.Target) 
 
 
      'Process client request... 
      '... 
 
      client.Close() 
   End Sub 
 
   Private Function GetClientSocket() As Socket 
 
      Dim listenSocket As Socket = New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) 
 
      Dim hostIP As IPAddress = IPAddress.Parse("127.0.0.1") 
      Dim port As Integer = 107 
 
      Dim ep As IPEndPoint = New IPEndPoint(hostIP, port) 
 
      listenSocket.Bind(ep) 
 
      ' start listening 
      listenSocket.Listen(10) 
 
      'a client should send a request to the listening address 
      Dim client As Socket = listenSocket.Accept() 
 
      listenSocket.Close() 
 
      Return client 
   End Function 
End Class 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

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