retrieves Active Directory information

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using System;
using System.DirectoryServices;

public class Example21_16 
{

  public static void Main() 
  {

    // connect to AD
    DirectoryEntry de = new DirectoryEntry(
      "WinNT://DomanName/MachineName", "Administrator", "Password");

    foreach(DirectoryEntry child in de.Children) 
    {
      Console.WriteLine(child.SchemaClassName + ": " + child.Name);
    }
  }

}




           
          


DirectoryServices DirectoryEntry

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using System;
using System.Net;
using System.DirectoryServices;
using System.DirectoryServices.Protocols;

public class MainClass {
    public static void Main() {
        using (DirectoryEntry de = new DirectoryEntry()) {
            de.Path = "LDAP://yourSite/rootDSE";
            de.Username = @"explorerchris";
            de.Password = "password";

            PropertyCollection props = de.Properties;

            foreach (string prop in props.PropertyNames) {
                PropertyValueCollection values = props[prop];
                foreach (string val in values) {
                    Console.Write(prop + ": ");
                    Console.WriteLine(val);
                }
            }
        }
    }

}

    


Using DirectorySearcher

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using System;
using System.Net;
using System.DirectoryServices;


public class MainClass {
    public static void Main() {
        using (DirectoryEntry de = new DirectoryEntry("LDAP://yourV/OU=yourV, DC=explorer, DC=local"))
        using (DirectorySearcher searcher = new DirectorySearcher()) {
            de.Username = @"exploreryourName";
            de.Password = "password";
            searcher.SearchRoot = de;
            searcher.Filter = "(&(objectClass=user)(description=Auth*))";
            searcher.SearchScope = System.DirectoryServices.SearchScope.Subtree;
            searcher.PropertiesToLoad.Add("name");
            searcher.PropertiesToLoad.Add("description");
            searcher.PropertiesToLoad.Add("givenName");
            searcher.PropertiesToLoad.Add("wWWHomePage");
            searcher.Sort = new SortOption("givenName", SortDirection.Ascending);
            SearchResultCollection results = searcher.FindAll();
            foreach (SearchResult result in results) {
                ResultPropertyCollection props = result.Properties;
                foreach (string propName in props.PropertyNames) {
                    Console.Write(propName + ": ");
                    Console.WriteLine(props[propName][0]);
                }
            }
        }
    }
}

    


Web server

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using System;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;

class MainClass {
private static int maxRequestHandlers = 5;
private static int requestHandlerID = 0;
private static HttpListener listener;
private static void RequestHandler(IAsyncResult result) {
try {
HttpListenerContext context = listener.EndGetContext(result);
StreamWriter sw = new StreamWriter(context.Response.OutputStream, Encoding.UTF8);
sw.WriteLine(“C# “);
sw.WriteLine(“” + result.AsyncState);
sw.WriteLine(““);
sw.Flush();

context.Response.ContentType = “text/html”;
context.Response.ContentEncoding = Encoding.UTF8;

context.Response.Close();
} catch (ObjectDisposedException) {
Console.WriteLine(result.AsyncState);
} finally {
if (listener.IsListening) {
listener.BeginGetContext(RequestHandler, “RequestHandler_” + Interlocked.Increment(ref requestHandlerID));
}
}
}

public static void Main(string[] args) {
using (listener = new HttpListener()) {
listener.Prefixes.Add(“http://localhost:8080/”);
listener.Start();
for (int count = 0; count < maxRequestHandlers; count++) { listener.BeginGetContext(RequestHandler, "RequestHandler_" + Interlocked.Increment(ref requestHandlerID)); } Console.WriteLine("Press Enter to stop the HTTP Server"); Console.ReadLine(); listener.Stop(); listener.Abort(); } } } [/csharp]

Get HTTP Response headers

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

public class TryHttpRequest {
  public static void Main(String [] args) {
    HttpWebRequest request =(HttpWebRequest)WebRequest.Create("http://www.kutayzorlu.com/java2s/com");
    HttpWebResponse response =(HttpWebResponse)request.GetResponse();
    request.Accept = "text/plain";
    
    Console.WriteLine("Response headers");
    Console.WriteLine("  Protocol version: {0}",                                             response.ProtocolVersion);
    Console.WriteLine("  Status code: {0}",response.StatusCode);
    Console.WriteLine("  Status description: {0}",response.StatusDescription);
    Console.WriteLine("  Content encoding: {0}",response.ContentEncoding);
    Console.WriteLine("  Content length: {0}",response.ContentLength);
    Console.WriteLine("  Content type: {0}",response.ContentType);
    Console.WriteLine("  Last Modified: {0}",response.LastModified);
    Console.WriteLine("  Server: {0}", response.Server);
    Console.WriteLine("  Length using method: {0}
",response.GetResponseHeader("Content-Length"));
  
  }
}

           
          


Get HTTP Request Headers

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

public class TryHttpRequest {
public static void Main(String [] args) {
HttpWebRequest request =(HttpWebRequest)WebRequest.Create(“http://www.kutayzorlu.com/java2s/com”);
HttpWebResponse response =(HttpWebResponse)request.GetResponse();
request.Accept = “text/plain”;
Console.WriteLine(“Request header count: {0}”,request.Headers.Count);
WebHeaderCollection header = request.Headers;
for (int i = 0; i < header.Count; i++) Console.WriteLine(" {0} : {1}",header.GetKey(i), header[i]); } } [/csharp]

Uses WebRequest and WebResponse. Tests use HTTP and the file protocol

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

public class TryWebRequest {
public static void Main(String [] args) {
WebRequest request = WebRequest.Create(“http://www.kutayzorlu.com/java2s/com”);
WebResponse response = request.GetResponse();
Console.WriteLine(“Content length: {0}”, response.ContentLength);
Console.WriteLine(“Content type: {0}
“, response.ContentType);
Console.WriteLine(“Request header count: {0}”, request.Headers.Count);
WebHeaderCollection header = request.Headers;
for (int i = 0; i < header.Count; i++) Console.WriteLine("{0} : {1}", header.GetKey(i), header[i]); Console.WriteLine(); StreamReader input = new StreamReader(response.GetResponseStream()); Console.WriteLine(input.ReadToEnd()); input.Close(); } } [/csharp]