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Get manager's employees from AD

I am trying to get a list of employees of a manager given his DN.
Assuming logged in user is a manager,
1) Search for the manager in active directory using the sAMAccountName (i.e. Domain ID) and retrieve the distinguishedName
2) Search for all user objects in active directory with the "manager" attribute equal to the previously retrieved distinguishedName
However, my Directory Entry Collection is always empty. Here is what I have done, assuming user/manager's DN is given.
private static List<DirectoryEntry> GetUserDEByManagerDN(string sDN)
{
string adPath = ConfigurationManager.AppSettings["ADPath"].ToString();
DirectoryEntry de = new DirectoryEntry(adPath + "/" + sDN);
List<DirectoryEntry> lsUsers = new List<DirectoryEntry>();
using (DirectorySearcher Search = new DirectorySearcher())
{
Search.SearchRoot = de;
Search.Filter = "(&(manager=" + sDN + "))";
//Search.Filter = "(&(manager=" + sDN + ")(extensionAttribute14=INV))";
Search.SearchScope = SearchScope.Base; // Also tried SearchScope.Subtree
SearchResultCollection Results = Search.FindAll();
if (null != Results) // Results is not null but has zero length
{
foreach (SearchResult Result in Results)
{
DirectoryEntry deUser = Result.GetDirectoryEntry();
if (null != deUser)
lsUsers.Add(deUser);
}
}
}
return lsUsers;
}
I also tried escaping DN using:
string sEscapedDN = sDN.Replace('\\', '\x5C').Replace(')', '\x29').Replace('(', '\x28').Replace('*', '\x2A');
No Luck. Any help is appreciated.

Following itsme86's suggestion to set the container that has all of the users and Camilo Terevinto's specific suggestion to remove manager's DN from AD path, the issue was resolved. I also had to change the search scope from base to subtree.
Below is what worked for me:
private static List<DirectoryEntry> GetUserDEByManagerDN(string sManagerDN)
{
string adPath = ConfigurationManager.AppSettings["ADPath"].ToString();
/* This was one of the issues */
//DirectoryEntry de = new DirectoryEntry(adPath + "/" + sManagerDN);
DirectoryEntry de = new DirectoryEntry(adPath);
List<DirectoryEntry> lsUsers = new List<DirectoryEntry>();
using (DirectorySearcher Search = new DirectorySearcher())
{
Search.SearchRoot = de;
/* I had to include extension attribute 14 to get rid of some unusual "users", like Fax, special accounts, etc. You might not need it
//Search.Filter = "(manager=" + sDN + ")";
Search.Filter = "(&(manager=" + sDN + ")(extensionAttribute14=INV))";
//Search.SearchScope = SearchScope.Base;
Search.SearchScope = SearchScope.Subtree;
SearchResultCollection Results = Search.FindAll();
if (null != Results)
{
foreach (SearchResult Result in Results)
{
DirectoryEntry deUser = Result.GetDirectoryEntry();
if (null != deUser)
lsUsers.Add(deUser);
}
}
}
return lsUsers;
}

Unable to get the user name and role of the user accessing the website

I am trying to get the name and role of the user who is currently accessing the web application but the code I have written fetches the server user name.
Could you please review the below code that I have written and tell a solution to this problem.
string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
string[] stringSeparators = new string[] { "\\" };
string[] uname = userName.Split(stringSeparators, StringSplitOptions.None);
userName = uname[1];
List<string> userRoles = new List<string>();
userRoles = getUserRole(userName);
public List<string> getUserRole(string userName)
{
List<string> userNestedMembership = new List<string>();
DirectoryEntry domainConnection = new DirectoryEntry(); // Use this to query the default domain
DirectorySearcher samSearcher = new DirectorySearcher();
samSearcher.SearchRoot = domainConnection;
samSearcher.Filter = "(samAccountName=" + userName + ")";
samSearcher.PropertiesToLoad.Add("displayName");
SearchResult samResult = samSearcher.FindOne();
if (samResult != null)
{
DirectoryEntry theUser = samResult.GetDirectoryEntry();
theUser.RefreshCache(new string[] { "tokenGroups" });
foreach (byte[] resultBytes in theUser.Properties["tokenGroups"])
{
System.Security.Principal.SecurityIdentifier mySID = new System.Security.Principal.SecurityIdentifier(resultBytes, 0);
DirectorySearcher sidSearcher = new DirectorySearcher();
sidSearcher.SearchRoot = domainConnection;
sidSearcher.Filter = "(objectSid=" + mySID.Value + ")";
sidSearcher.PropertiesToLoad.Add("distinguishedName");
SearchResult sidResult = sidSearcher.FindOne();
if (sidResult != null)
{
string role = (string)sidResult.Properties["distinguishedName"][0];
role = role.Substring(3, role.Length - 3);
string[] roles = role.Split(',');
userNestedMembership.Add(roles[0]);
}
}
}
}
I have not done any changes in web config.

userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name;
That is getting you the wndows user name, which is likely the apppool name.
Have you set thr web config and IIS to know thet you want to use windows auth?
(or if you are not, try using the HTTP Context
HttpContext.Current.User.Identity.Name
Hope this helps, or at least gives you a steer in the right direction

The issue probably doesn't lie in the code, but in environment configuration. There are specific requirements to be met, to make System.Security.Principal.WindowsIdentity.GetCurrent().Name work as you want, as it gets the user on the server side. Here is nice post describing what could be done to make IIS work under user account (with Windows Authentication).

Using C# to authenticate user against LDAP

I'm using DirectorySearcher to search for a user entry in LDAP server.
DirectoryEntry de = new DirectoryEntry();
de.Path = "LDAP://myserver/OU=People,O=mycompany";
de.AuthenticationType = AuthenticationTypes.None;
DirectorySearcher deSearch = new DirectorySearcher();
deSearch.SearchRoot = de;
deSearch.Filter = "(uid=" + model.UserName + ")";
SearchResult result = deSearch.FindOne();
I'm able to get th intended output in result variable.
However If I try to authenticate the same user by providing password in directory entry, I always get following error.
"The user name or password is incorrect."
DirectoryEntry entry = new DirectoryEntry("LDAP://myserver/OU=People,O=mycompany", username, password);
DirectorySearcher search = new DirectorySearcher(
entry,
"(uid=" + username + ")",
new string[] { "uid" }
);
search.SearchScope = System.DirectoryServices.SearchScope.Subtree;
SearchResult found = search.FindOne(); ->>>>>this is where I get wrong credential error.
The username and password are for the user I want to authenticate.
Can anyone tell me what I'm doing wrong here or how to debug this.

This username, password within this line:
DirectoryEntry("LDAP://myserver/OU=People,O=mycompany", username, password);
should be for an account that has permission for directory lookup. It could be a service account or testing purpose try with your own. This shouldn't be the user/pass of someone who you are trying to authenticate.
If you want to authenticate, you can use following steps using PrincipalContext:
using(var context = new PrincipalContext(ContextType.Domain, "mydomain", "mydomain\serviceAcct", "serviceAcctPass")) {
//Username and password for authentication.
return context.ValidateCredentials(username, password);
}
"serviceAcct" = an account within domain users that has permission for directory lookup.
"serviceAcctPass" = password for that service account.
As I said, for testing you can try with your own user/pass context.
Also, make sure supplied username has either "domain\username" or "username#domain" formatting.

Here we are getting the active directory user details and we can use DomainName and UserRole from web.config file
bool isAdmin = false;
RegisterInput model = new RegisterInput();
NewUserInput usr = new NewUserInput();
SearchResultCollection results;
string mobileNumber = string.Empty;
using (DirectoryEntry domainEntry = new DirectoryEntry("LDAP://" + AppSettings.DomainName))
{
using (DirectorySearcher searcher = new DirectorySearcher(domainEntry, "userPrincipalName=" + userName + "#" + AppSettings.DomainName) { Filter = string.Format("(&(objectClass=user)(samaccountname={0}))", userName) })
{
results = searcher.FindAll();
if (results.Count > 0)
{
usr.FirstName = results[0].GetDirectoryEntry().Properties["givenName"].Value.ToString();
usr.LastName = results[0].GetDirectoryEntry().Properties["sn"].Value?.ToString();
usr.EmailAddress = results[0].GetDirectoryEntry().Properties["mail"].Value?.ToString();
mobileNumber = results[0].GetDirectoryEntry().Properties["mobile"]?.Value?.ToString();
dynamic userRoleList = results[0].GetDirectoryEntry().Properties["memberOf"];
if (userRoleList != null)
{
foreach (var role in userRoleList)
{
string[] split = role.ToString().Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
bool result = split.Any(x => x.ToLowerInvariant() == AppSettings.UserRole.ToLowerInvariant());
if (result)
{
isAdmin = true;
break;
}
}
}
}
}
}
model.NewUser = usr;

Get only users who belong to a specific group

I'm trying to understand Active Directory as quickly as I can, but so far I haven't been very successful. I have this code that returns all the users from AD which somebody else wrote and I'm supposed to alter it so that it only returns the users for a specified group. I've tried to learn a little bit more about AD in the hopes that the solution will present itself, but no luck so far. So maybe someone can help me out? Here's the code that I have.
adSearch.Filter = "(&(objectClass=user))";
string groupName = System.Configuration.ConfigurationManager.AppSettings["ADGroupName"];
string domain = adSearch.SearchRoot.Properties["dc"].Value.ToString();
DomainLabel.Text = domain + " accounts:";
foreach (SearchResult sResultSet in adSearch.FindAll())
{
if (!GetProperty(sResultSet, "givenName").Equals("") && !GetProperty(sResultSet, "sn").Equals(""))
{
string userAccountControl = GetProperty(sResultSet, "useraccountcontrol");
bool x = userAccountControl.Equals("512") || userAccountControl.Equals("66048");
if (x)
{
ListItem tempItem = new ListItem();
unsortedList.Add(GetProperty(sResultSet, "givenName") + " " + GetProperty(sResultSet, "sn"));
tempItem.Text = GetProperty(sResultSet, "givenName") + " " + GetProperty(sResultSet, "sn");
tempItem.Value = GetProperty(sResultSet, "sAMAccountName");
values.Add(tempItem);
}
}
}

I have done this in this way Where it checks the username if its in the SecurityGroup. You can Get the Users in the ActiveDirectory and then check it like this
public bool IsInSecurityGroup(string UserName)
{
bool _isInsecurityGroup;
string GroupName ="GroupName";
System.Security.Principal.WindowsIdentity MyIdentity =
System.Security.Principal.WindowsIdentity.GetCurrent();
System.Security.Principal.WindowsPrincipal MyPrincipal = new
System.Security.Principal.WindowsPrincipal(MyIdentity);
return (MyPrincipal.IsInRole(GroupName)) ? true : false;
}
For checking multiple users it should work for you Getting Users From SecurityGroup
or this GroupPrincipal.GetMembers Method

C# Active Directory: Get domain name of user?

I know that this type of question has been asked before, but other methods are failing me right now.
As it stands our windows service polls AD, given an LDAP (i.e. LDAP://10.32.16.80) and a list of usergroups within that AD server to search for.
It retrieves all users within those given groups, recursively searching those groups for more groups as well.
Each user is then added to another applications authenticated users list.
This part of the application is running successfully. However, we're in need of each user's friendly domain name (i.e. the part of their login DOMAIN/username)
So if there is a user that is part of TEST domain, named Steve: TEST/steve is his login.
I'm able to find steve in the AD, however I also need "TEST" to be stored along with his AD information.
Again, I can find 'steve' fine by using a directory searcher and the LDAP IP I'm given, but given the LDAP IP, how can I find the friendly domain name?
When I try the following code I'm given an error when attempting to access the 'defaultNamingContext':
System.Runtime.InteropServices.COMException (0x8007202A): The authentication mechanism is unknown.
Here is the code:
private string SetCurrentDomain(string server)
{
string result = string.Empty;
try
{
logger.Debug("'SetCurrentDomain'; Instantiating rootDSE LDAP");
DirectoryEntry ldapRoot = new DirectoryEntry(server + "/rootDSE", username, password);
logger.Debug("'SetCurrentDomain'; Successfully instantiated rootDSE LDAP");
logger.Debug("Attempting to retrieve 'defaultNamingContext'...");
string domain = (string)ldapRoot.Properties["defaultNamingContext"][0]; //THIS IS WHERE I HIT THE COMEXCEPTION
logger.Debug("Retrieved 'defaultNamingContext': " + domain);
if (!domain.IsEmpty())
{
logger.Debug("'SetCurrentDomain'; Instantiating partitions/configuration LDAP entry");
DirectoryEntry parts = new DirectoryEntry(server + "/CN=Partitions,CN=Configuration," + domain, username, password);
logger.Debug("'SetCurrentDomain'; Successfully instantiated partitions/configuration LDAP entry");
foreach (DirectoryEntry part in parts.Children)
{
if (part.Properties["nCName"] != null && (string)part.Properties["nCName"][0] != null)
{
logger.Debug("'SetCurrentDomain'; Found property nCName");
if ((string)part.Properties["nCName"][0] == domain)
{
logger.Debug("'SetCurrentDomain'; nCName matched defaultnamingcontext");
result = (string)part.Properties["NetBIOSName"][0];
logger.Debug("'SetCurrentDomain'; Found NetBIOSName (friendly domain name): " + result);
break;
}
}
}
}
logger.Debug("finished setting current domain...");
}
catch (Exception ex)
{
logger.Error("error attempting to set domain:" + ex.ToString());
}
return result;
}
edit
I added this sample method in order to attempt a suggestion but am getting an exception: "Unspecified error" when I hit the "FindAll()" call on the searcher.
The string being passed in is: "CN=TEST USER,CN=Users,DC=tempe,DC=ktregression,DC=com"
private string GetUserDomain(string dn)
{
string domain = string.Empty;
string firstPart = dn.Substring(dn.IndexOf("DC="));
string secondPart = "CN=Partitions,CN=Configuration," + firstPart;
DirectoryEntry root = new DirectoryEntry(secondPart, textBox2.Text, textBox3.Text);
DirectorySearcher searcher = new DirectorySearcher(root);
searcher.SearchScope = SearchScope.Subtree;
searcher.ReferralChasing = ReferralChasingOption.All;
searcher.Filter = "(&(nCName=" + firstPart + ")(nETBIOSName=*))";
try
{
SearchResultCollection rs = searcher.FindAll();
if (rs != null)
{
domain = GetProperty(rs[0], "nETBIOSName");
}
}
catch (Exception ex)
{
}
return domain;

This article helped me much to understand how to work with the Active Directory.
Howto: (Almost) Everything In Active Directory via C#
From this point forward, if you require further assitance, please let me know with proper questions in comment, and I shall answer them for you to the best of my knowledge.
EDIT #1
You had better go with this example's filter instead. I have written some sample code to briefly show how to work with the System.DirectoryServices and System.DirectoryServices.ActiveDirectory namespaces. The System.DirectoryServices.ActiveDirectory namespace is used to retrieve information about the domains within your Forest.
private IEnumerable<DirectoryEntry> GetDomains() {
ICollection<string> domains = new List<string>();
// Querying the current Forest for the domains within.
foreach(Domain d in Forest.GetCurrentForest().Domains)
domains.Add(d.Name);
return domains;
}
private string GetDomainFullName(string friendlyName) {
DirectoryContext context = new DirectoryContext(DirectoryContextType.Domain, friendlyName);
Domain domain = Domain.GetDomain(context);
return domain.Name;
}
private IEnumerable<string> GetUserDomain(string userName) {
foreach(string d in GetDomains())
// From the domains obtained from the Forest, we search the domain subtree for the given userName.
using (DirectoryEntry domain = new DirectoryEntry(GetDomainFullName(d))) {
using (DirectorySearcher searcher = new DirectorySearcher()){
searcher.SearchRoot = domain;
searcher.SearchScope = SearchScope.Subtree;
searcher.PropertiesToLoad.Add("sAMAccountName");
// The Filter is very important, so is its query string. The 'objectClass' parameter is mandatory.
// Once we specified the 'objectClass', we want to look for the user whose login
// login is userName.
searcher.Filter = string.Format("(&(objectClass=user)(sAMAccountName={0}))", userName);
try {
SearchResultCollection results = searcher.FindAll();
// If the user cannot be found, then let's check next domain.
if (results == null || results.Count = 0)
continue;
// Here, we yield return for we want all of the domain which this userName is authenticated.
yield return domain.Path;
} finally {
searcher.Dispose();
domain.Dispose();
}
}
}
Here, I didn't test this code and might have some minor issue to fix. This sample is provided as-is for the sake of helping you. I hope this will help.
EDIT #2
I found out another way out:
You have first to look whether you can find the user account within your domain;
If found, then get the domain NetBIOS Name; and
concatenate it to a backslash (****) and the found login.
The example below uses a NUnit TestCase which you can test for yourself and see if it does what you are required to.
[TestCase("LDAP://fully.qualified.domain.name", "TestUser1")]
public void GetNetBiosName(string ldapUrl, string login)
string netBiosName = null;
string foundLogin = null;
using (DirectoryEntry root = new DirectoryEntry(ldapUrl))
Using (DirectorySearcher searcher = new DirectorySearcher(root) {
searcher.SearchScope = SearchScope.Subtree;
searcher.PropertiesToLoad.Add("sAMAccountName");
searcher.Filter = string.Format("(&(objectClass=user)(sAMAccountName={0}))", login);
SearchResult result = null;
try {
result = searcher.FindOne();
if (result == null)
if (string.Equals(login, result.GetDirectoryEntry().Properties("sAMAccountName").Value))
foundLogin = result.GetDirectoryEntry().Properties("sAMAccountName").Value
} finally {
searcher.Dispose();
root.Dispose();
if (result != null) result = null;
}
}
if (!string.IsNullOrEmpty(foundLogin))
using (DirectoryEntry root = new DirectoryEntry(ldapUrl.Insert(7, "CN=Partitions,CN=Configuration,DC=").Replace(".", ",DC="))
Using DirectorySearcher searcher = new DirectorySearcher(root)
searcher.Filter = "nETBIOSName=*";
searcher.PropertiesToLoad.Add("cn");
SearchResultCollection results = null;
try {
results = searcher.FindAll();
if (results != null && results.Count > 0 && results[0] != null) {
ResultPropertyValueCollection values = results[0].Properties("cn");
netBiosName = rpvc[0].ToString();
} finally {
searcher.Dispose();
root.Dispose();
if (results != null) {
results.Dispose();
results = null;
}
}
}
Assert.AreEqual("FULLY\TESTUSER1", string.Concat(netBiosName, "\", foundLogin).ToUpperInvariant())
}
The source from which I inspired myself is:
Find the NetBios Name of a domain in AD

Since I could not find any example code I would like to share my own solution. This will search the parents of the DirectoryEntry object until it hits the domainDNS class.
using System.DirectoryServices;
public static class Methods
{
public static T ldap_get_value<T>(PropertyValueCollection property)
{
object value = null;
foreach (object tmpValue in property) value = tmpValue;
return (T)value;
}
public static string ldap_get_domainname(DirectoryEntry entry)
{
if (entry == null || entry.Parent == null) return null;
using (DirectoryEntry parent = entry.Parent)
{
if (ldap_get_value<string>(parent.Properties["objectClass"]) == "domainDNS")
return ldap_get_value<string>(parent.Properties["dc"]);
else
return ldap_get_domainname(parent);
}
}
}
Use it like this:
string[] _properties = new string[] { "objectClass", "distinguishedName", "samAccountName", "userPrincipalName", "displayName", "mail", "title", "company", "thumbnailPhoto", "useraccountcontrol" };
string account = "my-user-name";
// OR even better:
// string account = "my-user-name#DOMAIN.local";
using (DirectoryEntry ldap = new DirectoryEntry())
{
using (DirectorySearcher searcher = new DirectorySearcher(ldap))
{
searcher.PropertiesToLoad.AddRange(_properties);
if (account.Contains('#')) searcher.Filter = "(userPrincipalName=" + account + ")";
else searcher.Filter = "(samAccountName=" + account + ")";
var user = searcher.FindOne().GetDirectoryEntry();
Console.WriteLine("Name: " + Methods.ldap_get_value<string>(user.Properties["displayName"]));
Console.WriteLine("Domain: " + Methods.ldap_get_domainname(user));
Console.WriteLine("Login: " + Methods.ldap_get_domainname(user) + "\\" + Methods.ldap_get_value<string>(user.Properties["samAccountName"]));
}
}
I haven't got a forest to test it on but in theory this should cut it.

You can retrieve the name of the domain that the current user is on using the Environment.UserDomainName Property.
string domainName;
domainName = System.Environment.UserDomainName;

Maybe not entirely correct but...
DirectoryEntry dirEntry = new DirectoryEntry();
DirectorySearcher dirSearcher = new DirectorySearcher(dirEntry);
dirSearcher.SearchScope = SearchScope.Subtree;
dirSearcher.Filter = string.Format("(&(objectClass=user)(|(cn={0})(sn={0}*)(givenName={0})(sAMAccountName={0}*)))", userName);
var searchResults = dirSearcher.FindAll();
foreach (SearchResult sr in searchResults)
{
var de = sr.GetDirectoryEntry();
string user = de.Properties["SAMAccountName"][0].ToString();
string domain = de.Path.ToString().Split(new [] { ",DC=" },StringSplitOptions.None)[1];
MessageBox.Show(domain + "/" + user);
}
Because the value of de.Path is
LDAP://CN=FullName,DC=domain,DC=local