I need an urgent help in Active directory and LDAP.

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  11 years ago

  by mitratatsat

  Tatsat Mitra

  Gaborone, Botswana

  Joined 11 years ago

  I am facing a problem in my web application in the log in Page in ASP.net.The Problem is arising whenever i am authenticating my log in credentials using the LDAP to connect to Active directory in the server.I am giving you the code where the exception is getting thrown. public string[] GetIssuerFromActiveDirectory(string loginName) { try { string[] issuerDetails = new string[3]; string path = ConfigurationManager.AppSettings["LDAPPath"]; string groupName = null; String dn; DirectoryEntry entry = new DirectoryEntry(path); // Bind to the native AdsObject to force authentication.
  Object obj = entry.NativeObject; DirectorySearcher search = new DirectorySearcher(entry); search.Filter = "(SAMAccountName=" + loginName + ")"; SearchResult result = search.FindOne(); issuerDetails[0] = (String)result.Properties["name"][0]; issuerDetails[2] = (String)result.Properties["mail"][0];

              int propertyCount = result.Properties["memberOf"].Count;
              int equalsIndex, commaIndex;
  
              if (propertyCount <= 0)
                  issuerDetails[1] = null;
              else
              {
                  for (int propertyCounter = 0; propertyCounter < propertyCount; propertyCounter++)
                  {
                      dn = (String)result.Properties["memberOf"][propertyCounter];
                      equalsIndex = dn.IndexOf("=", 1);
                      commaIndex = dn.IndexOf(",", 1);
  
                      groupName = (dn.Substring((equalsIndex + 1), (commaIndex - equalsIndex) - 1));
                      if (groupName.Equals(ConfigurationManager.AppSettings["AdminRole"]) || groupName.Equals(ConfigurationManager.AppSettings["MemberRole"]))
                      {
                          issuerDetails[1] = groupName;
                      }
                  }
              }
  
              return issuerDetails;
          }
          catch (CustomException cex)
          {
              throw cex;
          }
          catch (Exception ex)
          {
              Exceptions.LogException(ex);
              CustomException cex = Exceptions.GetCustomException("issuer not present in active directory", ex);
              throw cex;
          }
      }
  

  its giving the exception at
  Object obj = entry.NativeObject; saying refferal was sent to the server. Can anyone help me with this exception.

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