I'm trying to create application pool using the ServerManager class. This is my code:
using (ServerManager serverManager = new ServerManager()) {
if (!serverManager.ApplicationPools.Any(p => p.Name == poolName)) {
ApplicationPool newPool = serverManager.ApplicationPools.Add(poolName);
newPool.ManagedRuntimeVersion = "v4.0";
newPool.ManagedPipelineMode = ManagedPipelineMode.Integrated;
newPool.ProcessModel.IdentityType = ProcessModelIdentityType.SpecificUser;
newPool.ProcessModel.UserName = user;
newPool.ProcessModel.Password = pass;
serverManager.CommitChanges();
}
}
The application pool gets created, but no identity is set for it - the identity column in the application pools table in IIS Manager is blank.
What am i doing wrong?
User is in the form of domain\username, and the credentials passed are correct (another part of code checks for those).
Take a look to this code. It is working for me:
public static ApplicationPool GetOrCreateApplicationPool(ServerManager serverManager, string applicationPoolName, string userName, SecureString password)
{
if (!serverManager.ApplicationPools.Any(p => p.Name.Equals(applicationPoolName)))
{
ApplicationPool appPool = serverManager.ApplicationPools.CreateElement();
appPool.Name = applicationPoolName;
appPool.ManagedPipelineMode = ManagedPipelineMode.Integrated;
appPool.ManagedRuntimeVersion = "v4.0";
if(password != null)
{
if (!(string.IsNullOrWhiteSpace(userName) || string.IsNullOrWhiteSpace(password.ToPlainTextString())))
{
appPool.ProcessModel.IdentityType = ProcessModelIdentityType.SpecificUser;
appPool.ProcessModel.UserName = userName;
appPool.ProcessModel.Password = password.ToPlainTextString();
}
}
serverManager.ApplicationPools.Add(appPool);
serverManager.CommitChanges();
}
return serverManager.ApplicationPools.First(p => p.Name.Equals(applicationPoolName));
}
Of course there are some additional methods such extensions that might cause this piece of code is not able to run but the idea is there and this is currently running on my application.
Research:
Similar Issue with workaround, but not actual solution to existing problem
Similar issue pointing to Microsoft End Point update as culprit
The above links are the most suited to my problem, I have also viewed every similar question listed by Stack Overflow upon creating this post, and only the above referenced questions fit my issue.
Background:
I have been using UserPrincipal.GetAuthorizationGroups for permissions for specific page access running IIS 7.5 on Server 2008 R2 in a C#.NET 4.0 web forms site for 2 and a half years. On May 15 2013 we removed a primary Domain controller running Server 2008 (not r2) and replaced it with a Server 2012 Domain Controller. The next day we started receiving the exception listed below.
I use Principal Context for Forms Authentication. The username/pass handshake succeeds and the auth cookie is properly set, but the subsequent Principal Context call that also calls UserPrincipal.GetAuthorizationGroups fails intermittently. We've resolved a few BPA issues that appeared in the Server 2012 Domain Controller but this has yet to resolve the issue. I also instituted a cron that runs on two separate servers. The two servers will fail at Group SID resolution at different times though they are running the same code base. (A dev environment and production environment).
The issue resolves itself temporarily upon web server reboot, and also on the dev server it will resolve itself after 12 hours of not functioning. The production server will usually stop functioning properly until a reboot without resolving itself.
At this point I am trying to refine the cron targeting specific Domain Controllers in the network as well as the new DC and using the standard LDAP query that is currently failing to yield more targeted exception times. Thus far we've found on one web server that there is no pattern to the days at which it fails, but it will recover within roughly 12 hours. The latest results show Group SID resolution failure between 8AM-8PM then it recovers, several days later it will fail at 8pm and recover at 8am then run fine for another 12 hours and fail again. We are hoping to see if it is just a specific server communication issue or to see if it is the entire set of Domain Controllers.
Exception:
Exception information:
Exception type: PrincipalOperationException
Exception message: An error (1301) occurred while enumerating the groups.
The group's SID could not be resolved.
at System.DirectoryServices.AccountManagement.SidList.TranslateSids(String target, IntPtr[] pSids)
at System.DirectoryServices.AccountManagement.SidList..ctor(SID_AND_ATTR[] sidAndAttr)
at System.DirectoryServices.AccountManagement.AuthZSet..ctor(Byte[] userSid, NetCred credentials, ContextOptions contextOptions, String flatUserAuthority, StoreCtx userStoreCtx, Object userCtxBase)
at System.DirectoryServices.AccountManagement.ADStoreCtx.GetGroupsMemberOfAZ(Principal p)
at System.DirectoryServices.AccountManagement.UserPrincipal.GetAuthorizationGroups()
Question:
Given the above information, does anyone have any idea why decommissioning the Windows Server 2008 (not r2) and implementing a new Server 2012 DC would cause UserPrincipal.GetAuthorizationGroups to fail with the 1301 SID resolution error?
Ideas on eliminating possible causes would also be appreciated.
Disclaimer:
This is my first post to Stack Overflow, I often research here but have not joined in discussions until now. Forgive me if I should have posted elsewhere and feel free to point out better steps before posting.
UPDATE 13-JUN-2013:
On the 12th of June I addressed the possibility of items not disposed causing the issue.
The time frame has been too short to determine if the adjusted code has fixed the issue, but I will continue to update as we work towards a resolution such that maybe with any luck someone here can lend a hand.
Original Code
public bool isGroupMember(string userName, ArrayList groupList)
{
bool valid = false;
PrincipalContext ctx = new PrincipalContext(ContextType.Domain, domain_server + ".domain.org:636", null, ContextOptions.Negotiate | ContextOptions.SecureSocketLayer);
// find the user in the identity store
UserPrincipal user =
UserPrincipal.FindByIdentity(
ctx,
userName);
// get the groups for the user principal and
// store the results in a PrincipalSearchResult object
PrincipalSearchResult<Principal> groups =
user.GetAuthorizationGroups();
// display the names of the groups to which the
// user belongs
foreach (Principal group in groups)
{
foreach (string groupName in groupList)
{
if (group.ToString() == groupName)
{
valid = true;
}
}
}
return valid;
}
Updated Code
public bool isGroupMember(string userName, ArrayList groupList, string domain_server)
{
bool valid = false;
try
{
using (PrincipalContext ctx = new PrincipalContext(ContextType.Domain, domain_server + ".domain.org:636", null, ContextOptions.Negotiate | ContextOptions.SecureSocketLayer))
{
// find the user in the identity store
UserPrincipal user =
UserPrincipal.FindByIdentity(
ctx,
userName);
try
{
// get the groups for the user principal and
// store the results in a PrincipalSearchResult object
using (PrincipalSearchResult<Principal> groups = user.GetAuthorizationGroups())
{
// display the names of the groups to which the
// user belongs
foreach (Principal group in groups)
{
foreach (string groupName in groupList)
{
if (group.ToString() == groupName)
{
valid = true;
}
}
group.Dispose();
}
}//end using-2
}
catch
{
log_gen("arbitrary info");
return false;
}
}//end using-1
}
catch
{
log_gen("arbitrary info");
return false;
}
return valid;
}
I have just run into this same issue and the info I have managed to track down may be helpful; as above we have seen this problem where the domain controller is running Server 2012 - firstly with a customer deployment and then replicated on our own network.
After some experimentation we found that our code would run fine on Server 2012, but hit the 1301 error code when the client system was running Server 2008. The key information about what was happening was found here:
MS blog translated from German
The hotfix referred to in the link below has fixed the problem on our test system
SID S-1-18-1 and SID S-1-18-2 can't be mapped
Hope this is helpful for someone! As many have noted this method call seems rather fragile and we will probably look at implementing some alternative approach before we hit other issues.
Gary
Here's my solution. It seems to work consistently well. Because the problem happens when iterating over the collection, I use a different approach when iterating in order to handle the exception without blocking the actual iterating:
private string[] GetUserRoles(string Username)
{
List<string> roles = new List<string>();
try
{
string domain = Username.Contains("\\") ? Username.Substring(0, Username.IndexOf("\\")) : string.Empty;
string username = Username.Contains("\\") ? Username.Substring(Username.LastIndexOf("\\") + 1) : Username;
if (!string.IsNullOrEmpty(domain) && !string.IsNullOrEmpty(username))
{
PrincipalContext principalContext = new PrincipalContext(ContextType.Domain, domain);
UserPrincipal user = UserPrincipal.FindByIdentity(principalContext, username);
if (user != null)
{
PrincipalSearchResult<Principal> groups = user.GetAuthorizationGroups();
int count = groups.Count();
for (int i = 0; i < count; i++)
{
IEnumerable<Principal> principalCollection = groups.Skip(i).Take(1);
Principal principal = null;
try
{
principal = principalCollection.FirstOrDefault();
}
catch (Exception e)
{
//Error handling...
//Known exception - sometimes AD can't query a particular group, requires server hotfix?
//http://support.microsoft.com/kb/2830145
}
if (principal!=null && principal is GroupPrincipal)
{
GroupPrincipal groupPrincipal = (GroupPrincipal)principal;
if (groupPrincipal != null && !string.IsNullOrEmpty(groupPrincipal.Name))
{
roles.Add(groupPrincipal.Name.Trim());
}
}
}
}
}
}
catch (Exception e)
{
//Error handling...
}
return roles.ToArray();
}
We experienced this issue when our infrastructure team brought a 2012 Domain Controller online. We also had pre-2012 DCs in place and so we experienced the issue intermittently. We came up with a fix which I wanted to share - it has 2 parts.
First of all, install the hotfix mentioned by Gary Hill. This will resolve the following issue:
An error (1301) occurred while enumerating the groups. The group's SID could not be resolved.
We thought we were home free after installing this hotfix. However, after it was installed we got a different intermittent error. Certain groups that we were interrogating had a null sAMAccountName property. The actual property was populated in Active Directory but it was incorrectly being returned with a null value by the API. I presume this is a bug somewhere in the Active Directory API but I don't know any more than that.
Fortunately we were able to work around the issue by switching to use the group Name property instead of the sAMAccountName property. This worked for us. I believe, that sAMAccountName is effectively deprecated and exists only for backwards compatibility reasons. That being the case it seemed a reasonable change to make.
I enclose a cut down version of our GetRolesForUser code to demonstrate the change in place.
using (var context = new PrincipalContext(ContextType.Domain, _domainName))
{
try
{
var p = UserPrincipal.FindByIdentity(context, IdentityType.SamAccountName, username);
if (p == null) throw new NullReferenceException(string.Format("UserPrincipal.FindByIdentity returned null for user: {0}, this can indicate a problem with one or more of the AD controllers", username));
var groups = p.GetAuthorizationGroups();
var domain = username.Substring(0, username.IndexOf(#"\", StringComparison.InvariantCultureIgnoreCase)).ToLower();
foreach (GroupPrincipal group in groups)
{
if (!string.IsNullOrEmpty(group.Name))
{
var domainGroup = domain + #"\" + group.Name.ToLower();
if (_groupsToUse.Any(x => x.Equals(domainGroup, StringComparison.InvariantCultureIgnoreCase)))
{
// Go through each application role defined and check if the AD domain group is part of it
foreach (string role in roleKeys)
{
string[] roleMembers = new [] { "role1", "role2" };
foreach (string member in roleMembers)
{
// Check if the domain group is part of the role
if (member.ToLower().Contains(domainGroup))
{
// Cache the Application Role (NOT the AD role)
results.Add(role);
}
}
}
}
}
group.Dispose();
}
}
catch (Exception ex)
{
throw new ProviderException("Unable to query Active Directory.", ex);
}
}
Hope that helps.
I experienced error code 1301 with UserPrincipal.GetAuthorizationGroups while using a brand new virtual development domain which contained 2 workstations and 50 users/groups (many of which are the built in ones). We were running Windows Server 2012 R2 Essentials with two Windows 8.1 Enterprise workstations joined to the domain.
I was able to recursively obtain a list of a user's group membership using the following code:
class ADGroupSearch
{
List<String> groupNames;
public ADGroupSearch()
{
this.groupNames = new List<String>();
}
public List<String> GetGroups()
{
return this.groupNames;
}
public void AddGroupName(String groupName)
{
this.groupNames.Add(groupName);
}
public List<String> GetListOfGroupsRecursively(String samAcctName)
{
PrincipalContext ctx = new PrincipalContext(ContextType.Domain, System.Environment.UserDomainName);
Principal principal = Principal.FindByIdentity(ctx, IdentityType.SamAccountName, samAcctName);
if (principal == null)
{
return GetGroups();
}
else
{
PrincipalSearchResult<Principal> searchResults = principal.GetGroups();
if (searchResults != null)
{
foreach (GroupPrincipal sr in searchResults)
{
if (!this.groupNames.Contains(sr.Name))
{
AddGroupName(sr.Name);
}
Principal p = Principal.FindByIdentity(ctx, IdentityType.SamAccountName, sr.SamAccountName);
try
{
GetMembersForGroup(p);
}
catch (Exception ex)
{
//ignore errors and continue
}
}
}
return GetGroups();
}
}
private void GetMembersForGroup(Principal group)
{
if (group != null && typeof(GroupPrincipal) == group.GetType())
{
GetListOfGroupsRecursively(group.SamAccountName);
}
}
private bool IsGroup(Principal principal)
{
return principal.StructuralObjectClass.ToLower().Equals("group");
}
}
I'm in an environment with multiple domain forests and trusts. I have pretty much this exact same code running on a web site form used to perform user security group lookups across the different domains.
I get this exact error in one of the very large domains where group membership can include 50+ different groups. It works fine in other domains forests.
In my research I found a thread that looks unrelated, but actually has the same stack trace. It is for a remote application running on SBS. The thread mentions that the error is caused by unresolvable SIDS in a group. I believe these would be what are known as "tombstoned" SIDS in active directory. See the thread here.
The thread suggests that finding the tombstoned enteries and removing them from the groups solves the problem. Is it possible the error you are receiving is because SIDS are getting tombstoned every 12 hours by a separate unrelated process? Ultimately, I believe this is a bug in the framework, and that the method should not crash because of tombstoned/unresolvable SIDS.
Good luck!
If anyone is interested this is a VB.NET version of the same code.
Few things you have to do before this code can work
1) You have to reference the assembly System.DirectoryServices
2) Make sure to pass "theusername" variable without the domain, so if your domain is "GIS" and your username is "Hussein" Windows generally authenticate you as GIS\Hussein. So you have to send in just purely the username "Hussein". I worked out the case sensitive stuff.
3) The method GetGroupsNew takes a username and returns a list of groups
4) The method isMemberofnew takes a username and a group and verifies that this user is part of that group or not, this is the one I was interested in.
Private Function getGroupsNew(theusername As String) As List(Of String)
Dim lstGroups As New List(Of String)
Try
Dim allDomains = Forest.GetCurrentForest().Domains.Cast(Of Domain)()
Dim allSearcher = allDomains.[Select](Function(domain)
Dim searcher As New DirectorySearcher(New DirectoryEntry("LDAP://" + domain.Name))
searcher.Filter = [String].Format("(&(&(objectCategory=person)(objectClass=user)(userPrincipalName=*{0}*)))", theusername)
Return searcher
End Function)
Dim directoryEntriesFound = allSearcher.SelectMany(Function(searcher) searcher.FindAll().Cast(Of SearchResult)().[Select](Function(result) result.GetDirectoryEntry()))
Dim memberOf = directoryEntriesFound.[Select](Function(entry)
Using entry
Return New With { _
Key .Name = entry.Name, _
Key .GroupName = DirectCast(entry.Properties("MemberOf").Value, Object()).[Select](Function(obj) obj.ToString()) _
}
End Using
End Function)
For Each user As Object In memberOf
For Each groupName As Object In user.GroupName
lstGroups.Add(groupName)
Next
Next
Return lstGroups
Catch ex As Exception
Throw
End Try
End Function
Private Function isMemberofGroupNew(theusername As String, thegroupname As String) As Boolean
Try
Dim lstGroups As List(Of String) = getGroupsNew(theusername)
For Each sGroup In lstGroups
If sGroup.ToLower.Contains(thegroupname.ToLower) Then Return True
Next
Return False
Catch ex As Exception
Throw
End Try
End Function
we had a similar issue after upgrading the domain controller to 2012. Suddenly my call to user.GetAuthorizationGroups() started failing; I was getting the same exception you were (error 1301). So, I changed it to user.GetGroups(). That worked for a little while, then started failing intermittently on "bad username or password". My latest workaround appears to fix it, for the moment at least. Instead of calling either of those, after constructing the user object, I also construct a group object, one for each group I want to see if the user is a member of. ie, "user.IsMemberOf(group)". That seems to work.
try
{
using (HostingEnvironment.Impersonate())
{
using (var principalContext = new PrincipalContext(ContextType.Domain, "MYDOMAIN"))
{
using (var user = UserPrincipal.FindByIdentity(principalContext, userName))
{
if (user == null)
{
Log.Debug("UserPrincipal.FindByIdentity failed for userName = " + userName + ", thus not authorized!");
isAuthorized = false;
}
if (isAuthorized)
{
firstName = user.GivenName;
lastName = user.Surname;
// so this code started failing:
// var groups = user.GetGroups();
// adGroups.AddRange(from #group in groups where
// #group.Name.ToUpper().Contains("MYSEARCHSTRING") select #group.Name);
// so the following workaround, which calls, instead,
// "user.IsMemberOf(group)",
// appears to work (for now at least). Will monitor for issues.
// test membership in SuperUsers
const string superUsersGroupName = "MyApp-SuperUsers";
using (var superUsers = GroupPrincipal.FindByIdentity(principalContext, superUsersGroupName))
{
if (superUsers != null && user.IsMemberOf(superUsers))
// add to the list of groups this user is a member of
// then do something with it later
adGroups.Add(superUsersGroupName);
}
I had same exception. If someone don't wanna used "LDAP", use this code. Cause I'm had nested groups, I'm used GetMembers(true) and it's little bit longer in time than GetMembers().
https://stackoverflow.com/a/27548271/1857271
or download fix from here: http://support.microsoft.com/kb/2830145
Facing the same problem enumerating authorization groups and the patches noted in the answer did not apply to our web server.
Manually enumerating and ignoring the trouble causing groups is working well, however:
private static bool UserIsMember(string usr, string grp)
{
usr = usr.ToLower();
grp = grp.ToLower();
using (var pc = new PrincipalContext(ContextType.Domain, "DOMAIN_NAME"))
{
using (var user = UserPrincipal.FindByIdentity(pc, usr))
{
var isMember = false;
var authGroups = user?.GetAuthorizationGroups().GetEnumerator();
while (authGroups?.MoveNext() ?? false)
{
try
{
isMember = authGroups.Current.Name.ToLower().Contains(grp);
if (isMember) break;
}
catch
{
// ignored
}
}
authGroups?.Dispose();
return isMember;
}
}
}
I had the problem that if i am connected over VPN and use groups=UserPrincipal.GetGroups() then the Exception occures when iterating over the groups.
If someone want to read all groups of a user there is following possibility (which is faster than using GetGroups())
private IList<string> GetUserGroupsLDAP(string samAccountName)
{
var groupList = new List<string>();
var domainConnection = new DirectoryEntry("LDAP://" + serverName, serverUser, serverUserPassword); // probably you don't need username and password
var samSearcher = new DirectorySearcher();
samSearcher.SearchRoot = domainConnection;
samSearcher.Filter = "(samAccountName=" + samAccountName + ")";
var samResult = samSearcher.FindOne();
if (samResult != null)
{
var theUser = samResult.GetDirectoryEntry();
theUser.RefreshCache(new string[] { "tokenGroups" });
var sidSearcher = new DirectorySearcher();
sidSearcher.SearchRoot = domainConnection;
sidSearcher.PropertiesToLoad.Add("name");
sidSearcher.Filter = CreateFilter(theUser);
foreach (SearchResult result in sidSearcher.FindAll())
{
groupList.Add((string)result.Properties["name"][0]);
}
}
return groupList;
}
private string CreateFilter(DirectoryEntry theUser)
{
string filter = "(|";
foreach (byte[] resultBytes in theUser.Properties["tokenGroups"])
{
var SID = new SecurityIdentifier(resultBytes, 0);
filter += "(objectSid=" + SID.Value + ")";
}
filter += ")";
return filter;
}
This question already has answers here:
Check UserID exists in Active Directory using C#
(2 answers)
Closed 7 years ago.
I want to be able to check giving a username if that user is a Domain User or a Local User (using .NET preferable) of the machine but could find much on this on the net
public static Boolean isLocalUser (string name)
{
//code here
}
EDIT
for example you are given me.user as a string
public bool DoesUserExist(string userName)
{
bool exists = false;
try
{
using (var domainContext = new PrincipalContext(ContextType.Domain, "DOMAIN"))
{
using (var foundUser = UserPrincipal.FindByIdentity(domainContext, IdentityType.SamAccountName, userName))
{
exists = true;
}
}
}
catch(exception ex)
{
//Exception could occur if machine is not on a domain
}
using (var domainContext = new PrincipalContext(ContextType.Machine))
{
using (var foundUser = UserPrincipal.FindByIdentity(domainContext, IdentityType.SamAccountName, userName))
{
exists = true;
}
}
return exists;
}
Source: Check UserID exists in Active Directory using C#
David is on the money, to check if the current user is part of the domain, you can check the Environment.UserDomainName and compare this with the current user.
Bit more info at MSDN
For me this has worked quite well so far. (left usings away).
bool IsLocalUser(string accountName)
{
var domainContext = new PrincipalContext(ContextType.Machine);
return Principal.FindByIdentity(domainContext, accountName) != null;
}
But be aware that this will not recognize the "System" account. We check that separately because it's always a local account.
A local user will have the account name prefixed with the machine name. A domain user's account name will be prefixed with its originating domain. If the machine name and the account prefix name don't match, or if the account name prefix matches the local machine, it's generally safe to assume its a local account.
I want to retrieve the login name of a user from Active Directory.
For example the name is 'Jan Van der Linden'
After giving this name as parameter I must get his login name in return for example jvdlinden
Since you're on .NET 3.5 and up, you should check out the System.DirectoryServices.AccountManagement (S.DS.AM) namespace. Read all about it here:
Managing Directory Security Principals in the .NET Framework 3.5
Basically, you can define a domain context and easily find users and/or groups in AD:
public string GetLoginName(string userName)
{
// set up domain context
PrincipalContext ctx = new PrincipalContext(ContextType.Domain);
// find user by name
UserPrincipal user = UserPrincipal.FindByIdentity(ctx, userName);
if(user != null)
return user.SamAccountName;
else
return string.Empty;
}
The new S.DS.AM makes it really easy to play around with users and groups in AD:
this actually does almost the opposite but can be a starting point to check and modify as needed:
Finding a User in Active Directory with the Login Name
using .net library you can use the following code to get username or any info from active directory
using System.Management;
using System.Management.Instrumentation;
using System.Runtime.InteropServices;
using System.DirectoryServices;
ManagementObjectSearcher Usersearcher = new ManagementObjectSearcher("Select * From Win32_ComputerSystem Where (Name LIKE 'ws%' or Name LIKE 'it%')");
ManagementObjectCollection Usercollection = Usersearcher.Get();
string[] sep = { "\\" };
string[] UserNameDomain = Usercollection.Cast<ManagementBaseObject>().First()["UserName"].ToString().Split(sep, StringSplitOptions.None);
i add "Select * From Win32_ComputerSystem Where (Name LIKE 'ws%' or Name LIKE 'it%')"
this will get the user name by the full name
hope this could help you
Check this link has needed code snipple
Validate AD-LDAP USer
using (DirectoryEntry entry = new DirectoryEntry())
{
entry.Username = "DOMAIN\\LOGINNAME";
entry.Password = "PASSWORD";
DirectorySearcher searcher = new DirectorySearcher(entry);
searcher.Filter = "(objectclass=user)";
try
{
searcher.FindOne();
{
//Add Your Code if user Found..
}
}
catch (COMException ex)
{
if (ex.ErrorCode == -2147023570)
{
ex.Message.ToString();
// Login or password is incorrect
}
}
}
Without Identity:
private string GetLogonFromDisplayName(string displayName)
{
var search = new DirectorySearcher(string.Format("(&(displayname={0})(objectCategory=user))", displayName));
search.PropertiesToLoad.Add("sAMAccountName");
SearchResult result = search.FindOne();
if (result != null)
{
var logonNameResults = result.Properties["sAMAccountName"];
if (logonNameResults == null || logonNameResults.Count == 0)
{
return null;
}
return logonNameResults[0].ToString();
}
return null;
}
I am trying to use WCF to do some remote user management things. I and reusing some code I had on a server 2003 box and worked fine, but on my windows 7 test box when I check to see if the user who called the function is administrator it says it is not.
[OperationBehavior(Impersonation=ImpersonationOption.Required)]
public string SetPassword(string username)
{
WindowsPrincipal principal = new WindowsPrincipal(OperationContext.Current.ServiceSecurityContext.WindowsIdentity);
System.Diagnostics.Debug.Print(WindowsIdentity.GetCurrent().Name);
System.Diagnostics.Debug.Print(principal.Identity.Name);
if (principal.IsInRole(WindowsBuiltInRole.Administrator))
{
//try
{
lock (Watchdog.m_principalContext)
{
using (UserPrincipal up = UserPrincipal.FindByIdentity(Watchdog.m_principalContext, username))
{
string newpassword = CreateRandomPassword();
up.SetPassword(newpassword);
up.Save();
return newpassword;
}
}
}
//catch
{
return null;
}
}
else
throw new System.Security.SecurityException("User not administrator");
}
principal.IsInRole(WindowsBuiltInRole.Administrator) is returning false every time. Both my current identity and principal.idenity are the correct user to be impersonated. and that user is a member of the administrators user group.
I think it has to do with UAC that was implemented in windows vista and up. this will be a issue because the production machine this will be going on to is a win2k8-r2 box.
Any suggestions on what to do?
Take a look at this article, under the section, "Coping with Windows Vista" , a very well written article with about UAC and checking Admin privs programatically.
As I did not want to do all that work (from RandomNoob's post) for check if the user is an administrator and the service is already running in a administrative context, I decided to just drop impersonation. I created a new user group called WCFUsers and anyone who will be using the service was added to that group. It now does the System.DirectoryServices.AccountManagement operations in its own context.
[OperationBehavior(Impersonation=ImpersonationOption.NotAllowed)]
public string SetPassword(string username)
{
WindowsPrincipal principal = new WindowsPrincipal(OperationContext.Current.ServiceSecurityContext.WindowsIdentity);
if (principal.IsInRole("WCFUsers"))
{
try
{
lock (Watchdog.m_principalContext)
{
using (UserPrincipal up = UserPrincipal.FindByIdentity(Watchdog.m_principalContext, username))
{
string newpassword = CreateRandomPassword();
up.SetPassword(newpassword);
up.Save();
return newpassword;
}
}
}
catch
{
return null;
}
}
else
return null;
}