Hi,
I am new to using .net remoting and am attempting to write an application to process login's against Active Directory. Currently I have the following code for my remote object:
using System;
using System.Text;
using System.Collections;
using System.DirectoryServices;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;
namespace ADRemote
{
/// <summary>
/// Summary description for ADRemote.
/// </summary>
public class ADRemote1 : MarshalByRefObject
{
private string _path;
private string _filterAttribute;
public ADRemote1()
{
//
// TODO: Add constructor logic here
//
_path = @"LDAP://domain.com";
}
public bool IsAuthenticated(string domain, string username, string pwd)
{
string domainAndUsername = domain + @"\" + username;
DirectoryEntry entry =
new DirectoryEntry(_path, domainAndUsername, pwd);
try
{
//Bind to the native AdsObject to force authentication.
object obj = entry.NativeObject;
DirectorySearcher search =
new DirectorySearcher(entry);
search.Filter = "(SAMAccountName=" + username + ")";
search.PropertiesToLoad.Add("cn");
SearchResult result = search.FindOne();
if(null == result)
{
return false;
}
//Update the new path to the user in the directory.
_path = result.Path;
_filterAttribute = (
string)result.Properties["cn"][0];
}
catch (Exception ex)
{
throw new Exception("Error authenticating user. " + ex.Message);
}
return true;
}
public string GetGroups()
{
DirectorySearcher search =
new DirectorySearcher(_path);
search.Filter = "(cn=" + _filterAttribute + ")";
search.PropertiesToLoad.Add("memberOf");
StringBuilder groupNames =
new StringBuilder();
try
{
SearchResult result = search.FindOne();
int propertyCount = result.Properties["memberOf"].Count;
string dn;
int equalsIndex, commaIndex;
for(int propertyCounter = 0; propertyCounter < propertyCount; propertyCounter++)
{
dn = (
string)result.Properties["memberOf"][propertyCounter];
equalsIndex = dn.IndexOf("=", 1);
commaIndex = dn.IndexOf(",", 1);
if(-1 == equalsIndex)
{
return null;
}
groupNames.Append(dn.Substring((equalsIndex + 1), (commaIndex - equalsIndex) - 1));
groupNames.Append("|");
}
}
catch(Exception ex)
{
throw new Exception("Error obtaining group names. " + ex.Message);
}
return groupNames.ToString();
}
}
}
This compiles, but when i try to reference it from my client, in this case a Web form to login, I get this error:
Exception Details: System.Runtime.Remoting.RemotingException: Requested Service not found
Can someone explain how to implement remoting using http channel? Is there something special I need to do to IIS or to my client app?
Thanks in advance,
Nathan