C# Network

IPAddress AddressFamily

Posted on by coder 
   
  
using System;
using System.Net;
class MainClass {
    public static void Main(string[] args) {
        foreach (string comp in args) {
            try {
                IPAddress[] addresses = Dns.GetHostEntry(comp).AddressList;
                foreach (IPAddress address in addresses) {
                    Console.WriteLine("{0} = {1} ({2})",
                        comp, address, address.AddressFamily);
                }
            } catch (Exception ex) {
                Console.WriteLine("{0} = Error ({1})", comp, ex.Message);
            }
        }
    }
}

HTTP put with user name and password

Posted on by coder 
   

using System;
using System.IO;
using System.Net;

public class HttpPut {

  public static void Main(string [] args) {

    string url = "http://www.kutayzorlu.com/java2s/com/";
    string username = "user";
    string password = "password";
    string data = "This data should be written to the URL.";

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "PUT";
    request.Credentials = new NetworkCredential(username, password);
    request.ContentLength = data.Length;
    request.ContentType = "text/plain";

    using (StreamWriter writer = new StreamWriter(request.GetRequestStream( ))) {
      writer.WriteLine(data);
    }

    WebResponse response = request.GetResponse( );

    using (StreamReader reader = new StreamReader(response.GetResponseStream( ))) {
      while (reader.Peek( ) != -1) {
        Console.WriteLine(reader.ReadLine( ));
      }
    }
  }
}

New Math Client

Posted on by coder 
   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;

public class NewMathClient
{
   public static int Main(string[] argv)
   {
      HttpChannel chan = new HttpChannel();
      ChannelServices.RegisterChannel(chan);
      MathClass obj = new MathClass();
      if (obj == null) 
         System.Console.WriteLine("Could not locate server");
      else
      {
         int a = Convert.ToInt32(argv[0]);
         int b = Convert.ToInt32(argv[1]);
         int c = obj.Add(a, b);
         Console.WriteLine("a + b = {0}", c);
         c = obj.Subtract(a, b);
         Console.WriteLine("a - b = {0}", c);
         c = obj.Multiply(a, b);
         Console.WriteLine("a * b = {0}", c);
         c = obj.Divide(a, b);
         Console.WriteLine("a / b = {0}", c);
      }
      return 0;
    } 
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}

Math Client

Posted on by coder 
   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;

public class MathClient
{
   public static int Main(string[] argv)
   {
      HttpChannel chan = new HttpChannel();
      ChannelServices.RegisterChannel(chan);
      MathClass obj = (MathClass)Activator.GetObject(
          typeof(MathClass), "http://127.0.0.1:9050/MyMathServer");
      if (obj == null) 
         System.Console.WriteLine("Could not locate server");
      else
      {
         int a = Convert.ToInt32(argv[0]);
         int b = Convert.ToInt32(argv[1]);
         int c = obj.Add(a, b);
         Console.WriteLine("a + b = {0}", c);
         c = obj.Subtract(a, b);
         Console.WriteLine("a - b = {0}", c);
         c = obj.Multiply(a, b);
         Console.WriteLine("a * b = {0}", c);
         c = obj.Divide(a, b);
         Console.WriteLine("a / b = {0}", c);
      }
      return 0;
    } 
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}

HttpChannel Math Server

Posted on by coder 
   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;


public class MathServer
{
   public static int Main()
   {
      HttpChannel chan = new HttpChannel(9050);
      ChannelServices.RegisterChannel(chan);
      RemotingConfiguration.RegisterWellKnownServiceType(
         Type.GetType("MathClass, MathClass"), "MyMathServer",
         WellKnownObjectMode.SingleCall);
      Console.WriteLine("Hit <enter> to exit...");
      Console.ReadLine();
      return 0;
    }
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}

FtpWebResponse GUI

Posted on by coder 
   
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Net;
using System.IO;

class FtpClientForm : Form {
    public FtpClientForm() {
        InitializeComponent();
    }

    private string serverDirectory;

    private void OnOpen(object sender, EventArgs e) {
        Cursor currentCursor = this.Cursor;
        FtpWebResponse response = null;
        Stream stream = null;
        this.Cursor = Cursors.WaitCursor;

        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(textServer.Text);
        request.Credentials = new NetworkCredential(textUsername.Text,
              textPassword.Text);
        request.Method = WebRequestMethods.Ftp.ListDirectory;

        response = (FtpWebResponse)request.GetResponse();

        stream = response.GetResponseStream();
        FillDirectoryList(stream);

        serverDirectory = null;
        buttonOpenDirectory.Enabled = false;
        buttonGetFile.Enabled = false;

        if (response != null)
            response.Close();
        if (stream != null)
            stream.Close();
        this.Cursor = currentCursor;
    }

    private void FillDirectoryList(Stream stream) {
        StreamReader reader = new StreamReader(stream);
        string content = reader.ReadToEnd();
        string[] files = content.Split(&#039;
&#039;);
        listFiles.DataSource = files;
        reader.Close();
    }

    private void OnOpenDirectory(object sender, EventArgs e) {
        FtpWebResponse response = null;
        Stream stream = null;
        string subDirectory = listFiles.SelectedValue.ToString().Trim();
        serverDirectory += @"/" + subDirectory;
        Uri baseUri = new Uri(textServer.Text);
        Uri uri = new Uri(baseUri, serverDirectory);

        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(uri);
        request.Credentials = new NetworkCredential(textUsername.Text,
              textPassword.Text);

        request.Method = WebRequestMethods.Ftp.ListDirectory;
        response = (FtpWebResponse)request.GetResponse();

        stream = response.GetResponseStream();
        FillDirectoryList(stream);
        if (response != null)
            response.Close();
        if (stream != null)
            stream.Close();
    }

    private void OnDownloadFile(object sender, EventArgs e) {
        FtpWebResponse response = null;
        Stream inStream = null;
        Stream outStream = null;
        Uri baseUri = new Uri(textServer.Text);

        string filename = listFiles.SelectedValue.ToString().Trim();
        string fullFilename = serverDirectory + @"/" + filename;

        Uri uri = new Uri(baseUri, fullFilename);

        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(uri);
        request.Credentials = new NetworkCredential(textUsername.Text,textPassword.Text);
        request.Method = WebRequestMethods.Ftp.DownloadFile;
        request.UseBinary = checkBoxBinary.Checked;

        response = (FtpWebResponse)request.GetResponse();

        inStream = response.GetResponseStream();

        saveFileDialog1.FileName = filename;

        if (saveFileDialog1.ShowDialog() == DialogResult.OK) {
            outStream = File.OpenWrite(saveFileDialog1.FileName);
            byte[] buffer = new byte[4096];
            int size = 0;
            while ((size = inStream.Read(buffer, 0, 4096)) > 0) {
                outStream.Write(buffer, 0, size);
            }
        }

        if (inStream != null)
            inStream.Close();
        if (outStream != null)
            outStream.Close();
        if (response != null)
            response.Close();

    }

    private void OnFileSelection(object sender, EventArgs e) {
        this.buttonGetFile.Enabled = true;
        this.buttonOpenDirectory.Enabled = true;
    }
    private void InitializeComponent() {
        this.label1 = new System.Windows.Forms.Label();
        this.textServer = new System.Windows.Forms.TextBox();
        this.buttonOpen = new System.Windows.Forms.Button();
        this.statusStrip1 = new System.Windows.Forms.StatusStrip();
        this.listFiles = new System.Windows.Forms.ListBox();
        this.buttonOpenDirectory = new System.Windows.Forms.Button();
        this.buttonGetFile = new System.Windows.Forms.Button();
        this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
        this.checkBoxBinary = new System.Windows.Forms.CheckBox();
        this.label2 = new System.Windows.Forms.Label();
        this.label3 = new System.Windows.Forms.Label();
        this.textUsername = new System.Windows.Forms.TextBox();
        this.textPassword = new System.Windows.Forms.TextBox();
        this.SuspendLayout();
        this.label1.AutoSize = true;
        this.label1.Location = new System.Drawing.Point(28, 31);
        this.label1.Size = new System.Drawing.Size(37, 13);
        this.label1.Text = "Server:";
        this.textServer.Location = new System.Drawing.Point(109, 31);
        this.textServer.Size = new System.Drawing.Size(146, 20);
        this.textServer.Text = "ftp://";
        this.buttonOpen.Location = new System.Drawing.Point(371, 31);
        this.buttonOpen.Size = new System.Drawing.Size(103, 23);
        this.buttonOpen.Text = "Open";
        this.buttonOpen.Click += new System.EventHandler(this.OnOpen);
        this.statusStrip1.LayoutStyle = System.Windows.Forms.ToolStripLayoutStyle.Table;
        this.statusStrip1.Location = new System.Drawing.Point(0, 0);
        this.statusStrip1.Size = new System.Drawing.Size(496, 18);
        this.statusStrip1.Text = "statusStrip1";
        this.listFiles.FormattingEnabled = true;
        this.listFiles.Location = new System.Drawing.Point(28, 149);
        this.listFiles.Size = new System.Drawing.Size(315, 160);
        this.listFiles.SelectedIndexChanged += new System.EventHandler(this.OnFileSelection);
        this.buttonOpenDirectory.Enabled = false;
        this.buttonOpenDirectory.Location = new System.Drawing.Point(371, 77);
        this.buttonOpenDirectory.Name = "buttonOpenDirectory";
        this.buttonOpenDirectory.Size = new System.Drawing.Size(103, 23);
        this.buttonOpenDirectory.TabIndex = 8;
        this.buttonOpenDirectory.Text = "Open Directory";
        this.buttonOpenDirectory.Click += new System.EventHandler(this.OnOpenDirectory);
        this.buttonGetFile.Enabled = false;
        this.buttonGetFile.Location = new System.Drawing.Point(371, 122);
        this.buttonGetFile.Size = new System.Drawing.Size(103, 23);
        this.buttonGetFile.Text = "Get File";
        this.buttonGetFile.Click += new System.EventHandler(this.OnDownloadFile);
        this.checkBoxBinary.AutoSize = true;
        this.checkBoxBinary.Checked = true;
        this.checkBoxBinary.CheckState = System.Windows.Forms.CheckState.Checked;
        this.checkBoxBinary.Location = new System.Drawing.Point(371, 190);
        this.checkBoxBinary.Size = new System.Drawing.Size(81, 17);
        this.checkBoxBinary.Text = "Binary Mode";
        this.label2.AutoSize = true;
        this.label2.Location = new System.Drawing.Point(28, 62);
        this.label2.Size = new System.Drawing.Size(54, 13);
        this.label2.Text = "Username:";
        this.label3.AutoSize = true;
        this.label3.Location = new System.Drawing.Point(28, 101);
        this.label3.Size = new System.Drawing.Size(52, 13);
        this.label3.Text = "Password:";
        this.textUsername.Location = new System.Drawing.Point(109, 62);
        this.textUsername.Size = new System.Drawing.Size(146, 20);
        this.textUsername.Text = "Anonymous";
        this.textPassword.Location = new System.Drawing.Point(109, 101);
        this.textPassword.PasswordChar = &#039;?&#039;;
        this.textPassword.Size = new System.Drawing.Size(146, 20);
        this.textPassword.UseSystemPasswordChar = true;
        this.ClientSize = new System.Drawing.Size(496, 353);
        this.Controls.Add(this.textPassword);
        this.Controls.Add(this.textUsername);
        this.Controls.Add(this.label3);
        this.Controls.Add(this.label2);
        this.Controls.Add(this.checkBoxBinary);
        this.Controls.Add(this.buttonGetFile);
        this.Controls.Add(this.buttonOpenDirectory);
        this.Controls.Add(this.listFiles);
        this.Controls.Add(this.buttonOpen);
        this.Controls.Add(this.textServer);
        this.Controls.Add(this.label1);
        this.Text = "FTP Client";
        this.ResumeLayout(false);
        this.PerformLayout();

    }
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.TextBox textServer;
    private System.Windows.Forms.Button buttonOpen;
    private System.Windows.Forms.StatusStrip statusStrip1;
    private System.Windows.Forms.ListBox listFiles;
    private System.Windows.Forms.Button buttonOpenDirectory;
    private System.Windows.Forms.Button buttonGetFile;
    private System.Windows.Forms.SaveFileDialog saveFileDialog1;
    private System.Windows.Forms.CheckBox checkBoxBinary;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.TextBox textUsername;
    private System.Windows.Forms.TextBox textPassword;
    [STAThread]
    static void Main() {
        Application.EnableVisualStyles();
        Application.Run(new FtpClientForm());
    }
}

Using DsmlSoapHttpConnection

Posted on by coder 
   
 
using System;
using System.Net;
using System.DirectoryServices;
using System.DirectoryServices.Protocols;

public class MainClass {
    public static void Main() {
        Uri uri = new Uri("http://yourSite:8080/dsml3");
        DsmlDirectoryIdentifier identifier = new DsmlDirectoryIdentifier(uri);

        NetworkCredential credentials = new NetworkCredential();
        credentials.UserName = @"explorercnagel";
        credentials.Password = "password";

        DsmlSoapHttpConnection dsmlConnection = new DsmlSoapHttpConnection(identifier);

        string baseDN = null; 
        string ldapSearchFilter = "(objectClass=*)";
        string[] attributesToReturn = null;

        SearchRequest searchRequest = new SearchRequest(baseDN, ldapSearchFilter,System.DirectoryServices.Protocols.SearchScope.Base, attributesToReturn);
        SearchResponse searchResponse = (SearchResponse)dsmlConnection.SendRequest(searchRequest);

        foreach (SearchResultEntry entry in searchResponse.Entries) {
            DirectoryAttribute attribute = entry.Attributes["schemaNamingContext"];
            Console.WriteLine(attribute.Name + "=" + attribute[0]); 
            foreach (DirectoryAttribute attr in entry.Attributes.Values) {
                Console.Write(attr.Name + "=");
                foreach (object value in attr) {
                    Console.Write(value + "  ");
                }
            }
        }
    }
}