LDAP Authentication

Hi,

This blog post summarizes the use of LDAP Authentication. See my earliar post on to it.

Here it summarizes two different purpose of LDAP.

· To authenticate a user and

· List all the users present in the domain.

string LDAPath = LDAP://xp.co.in;

string domainAndUsername = "xppune" + @"\" + "arunm";

string pwd = "arun0208";

SearchResult findResult;

string strResultProp = "";

StringCollection userList;

DirectoryEntry entry;

object objNative;

DirectorySearcher searcher;

private bool AuthenticateOne()

{

entry = new DirectoryEntry(LDAPath, domainAndUsername, pwd);

objNative = entry.NativeObject;

searcher = new DirectorySearcher(entry);

searcher.Filter = "(SAMAccountName=" + "arunm" +")";

searcher.PropertiesToLoad.Add("CN"); //LDAP://xp.co.in/CN=Arun Manglik,CN=Users,DC=xp,DC=co,DC=in

findResult = searcher.FindOne();

if (findResult != null)

{

return true;

}

return false;

}

private void AuthenticateAndListAll()

{

entry = new DirectoryEntry(LDAPath, domainAndUsername, pwd);

objNative = entry.NativeObject;

searcher = new DirectorySearcher(entry);

searcher.Filter = "(&(objectClass=user)(objectCategory=person))";

SearchResultCollection srResCol = searcher.FindAll();

userList = new StringCollection();

for (int i = 0; i < srResCol.Count; i++)

{

findResult = srResCol[i];

ResultPropertyCollection myResultPropColl;

myResultPropColl = findResult.Properties;

foreach (object resultProp in myResultPropColl["samAccountName"])

{

strResultProp = resultProp.ToString();

userList.Add(strResultProp);

}

}

}

Thanks & Regards,

Arun Manglick Tech Lead