public static void RemovePrincipal(SecurityIdentifier userSid, RemovalReason reason)
{
// TODO: Only do this if the principal is a member of the group?
if ((LocalAdminGroup != null) && (userSid != null))
{
SecurityIdentifier[] localAdminSids = GetLocalGroupMembers(null, LocalAdminGroup.SamAccountName);
foreach (SecurityIdentifier sid in localAdminSids)
{
if (sid == userSid)
/* if (string.Compare(sid.Value, principalSID, true) == 0) */
{
string accountName = GetAccountNameFromSID(userSid.Value);
int result = RemoveLocalGroupMembers(null, LocalAdminGroup.SamAccountName, userSid);
if (result == 0)
{
PrincipalList.RemoveSID(userSid);
Settings.SIDs = PrincipalList.GetSIDs().Select(p => p.Value).ToArray <string>();
string reasonString = Properties.Resources.RemovalReasonUnknown;
switch (reason)
{
case RemovalReason.ServiceStopped:
reasonString = Properties.Resources.RemovalReasonServiceStopped;
break;
case RemovalReason.Timeout:
reasonString = Properties.Resources.RemovalReasonTimeout;
break;
case RemovalReason.UserLogoff:
reasonString = Properties.Resources.RemovalReasonUserLogoff;
break;
case RemovalReason.UserRequest:
reasonString = Properties.Resources.RemovalReasonUserRequest;
break;
}
// TODO: i18n.
string message = string.Format("Principal {0} ({1}) removed from the Administrators group. Reason: {2}.", userSid, accountName, reasonString);
ApplicationLog.WriteInformationEvent(message, EventID.UserRemovedFromAdminsSuccess);
}
else
{
// TODO: i18n.
ApplicationLog.WriteWarningEvent(string.Format("Removing principal {0} ({1}) from the Administrators group returned error code {1}.", userSid, accountName, result), EventID.UserRemovedFromAdminsFailure);
}
}
}
}
}
public void AddPrincipalToAdministratorsGroup()
{
string remoteAddress = null;
WindowsIdentity userIdentity = null;
if (ServiceSecurityContext.Current != null)
{
userIdentity = ServiceSecurityContext.Current.WindowsIdentity;
}
#if DEBUG
else
{
ApplicationLog.WriteWarningEvent("Current service security context is null.", EventID.DebugMessage);
}
#endif
if (OperationContext.Current != null)
{
if (OperationContext.Current.IncomingMessageProperties != null)
{
if (OperationContext.Current.IncomingMessageProperties.ContainsKey(RemoteEndpointMessageProperty.Name))
{
remoteAddress = ((RemoteEndpointMessageProperty)OperationContext.Current.IncomingMessageProperties[RemoteEndpointMessageProperty.Name]).Address;
}
}
}
#if DEBUG
if (remoteAddress != null)
{
string message = string.Format("Administrator rights request came from [{0}].", remoteAddress);
ApplicationLog.WriteInformationEvent(message, EventID.DebugMessage);
}
#endif
if (userIdentity != null)
{
int timeoutMinutes = Shared.GetTimeoutForUser(userIdentity);
DateTime expirationTime = DateTime.Now.AddMinutes(timeoutMinutes);
LocalAdministratorGroup.AddPrincipal(userIdentity, expirationTime, remoteAddress);
}
}
private static void AddPrincipalToAdministrators(SecurityIdentifier userSid, string remoteAddress)
{
int result = AddLocalGroupMembers(null, LocalAdminGroup.SamAccountName, userSid);
if (result == 0)
{
/* PrincipalList.AddSID(userSid, expirationTime, remoteAddress); */
// TODO: i18n.
ApplicationLog.WriteInformationEvent(string.Format("Principal {0} ({1}) added to the Administrators group.", userSid, GetAccountNameFromSID(userSid.Value)), EventID.UserAddedToAdminsSuccess);
if (remoteAddress != null)
{
// TODO: i18n.
ApplicationLog.WriteInformationEvent(string.Format("Request was sent from host {0}.", remoteAddress), EventID.RemoteRequestInformation);
}
Settings.SIDs = PrincipalList.GetSIDs().Select(p => p.Value).ToArray <string>();
}
else
{
// TODO: i18n.
ApplicationLog.WriteWarningEvent(string.Format("Adding principal {0} ({1}) to the Administrators group returned error code {2}.", userSid, GetAccountNameFromSID(userSid.Value), result), EventID.UserAddedToAdminsFailure);
}
}
protected override void OnSessionChange(SessionChangeDescription changeDescription)
{
switch (changeDescription.Reason)
{
// The user has logged off from a session, either locally or remotely.
case SessionChangeReason.SessionLogoff:
#if DEBUG
ApplicationLog.WriteInformationEvent(string.Format("Session {0} has logged off.", changeDescription.SessionId), EventID.DebugMessage);
#endif
//if (Settings.RemoveAdminRightsOnLogout)
//{
System.Collections.Generic.List <SecurityIdentifier> sidsToRemove = new System.Collections.Generic.List <SecurityIdentifier>(PrincipalList.GetSIDs());
/*
#if DEBUG
* ApplicationLog.WriteInformationEvent("SID to remove list has been retrieved.", EventID.DebugMessage);
* for (int i = 0; i < sidsToRemove.Count; i++)
* {
* ApplicationLog.WriteInformationEvent(string.Format("SID to remove: {0}", sidsToRemove[i]), EventID.DebugMessage);
* }
#endif
*/
int[] sessionIds = LsaLogonSessions.LogonSessions.GetLoggedOnUserSessionIds();
foreach (int id in sessionIds)
{
SecurityIdentifier sid = LsaLogonSessions.LogonSessions.GetSidForSessionId(id);
if (sid != null)
{
if (sidsToRemove.Contains(sid))
{
sidsToRemove.Remove(sid);
}
}
}
/*
#if DEBUG
* ApplicationLog.WriteInformationEvent("SID to remove list has been updated.", EventID.DebugMessage);
* for (int i = 0; i < sidsToRemove.Count; i++)
* {
* ApplicationLog.WriteInformationEvent(string.Format("SID to remove: {0}", sidsToRemove[i]), EventID.DebugMessage);
* }
#endif
*/
for (int i = 0; i < sidsToRemove.Count; i++)
{
if (
(!(PrincipalList.ContainsSID(sidsToRemove[i]) && PrincipalList.IsRemote(sidsToRemove[i])))
&&
(Settings.RemoveAdminRightsOnLogout || !PrincipalList.GetExpirationTime(sidsToRemove[i]).HasValue)
)
{
LocalAdministratorGroup.RemovePrincipal(sidsToRemove[i], RemovalReason.UserLogoff);
}
}
/*
* In theory, this code should remove the user associated with the logoff, but it doesn't work.
* SecurityIdentifier sid = LsaLogonSessions.LogonSessions.GetSidForSessionId(changeDescription.SessionId);
* if (!(PrincipalList.ContainsSID(sid) && PrincipalList.IsRemote(sid)))
* {
* LocalAdministratorGroup.RemovePrincipal(sid, RemovalReason.UserLogoff);
* }
*/
//}
/*
* else
* {
#if DEBUG
* ApplicationLog.WriteInformationEvent("Removing admin rights on log off is disabled.", EventID.DebugMessage);
#endif
* }
*/
break;
// The user has logged on to a session, either locally or remotely.
case SessionChangeReason.SessionLogon:
#if DEBUG
// TODO: i18n.
ApplicationLog.WriteInformationEvent(string.Format("Session logon. Session ID: {0}", changeDescription.SessionId), EventID.SessionChangeEvent);
#endif
WindowsIdentity userIdentity = LsaLogonSessions.LogonSessions.GetWindowsIdentityForSessionId(changeDescription.SessionId);
if (userIdentity != null)
{
/*
#if DEBUG
* ApplicationLog.WriteInformationEvent("User identity is not null.", EventID.DebugMessage);
* ApplicationLog.WriteInformationEvent(string.Format("user name: {0}", userIdentity.Name), EventID.DebugMessage);
* ApplicationLog.WriteInformationEvent(string.Format("user SID: {0}", userIdentity.User), EventID.DebugMessage);
#endif
*/
if (
(Settings.AutomaticAddAllowed != null) &&
(Settings.AutomaticAddAllowed.Length > 0) &&
(Shared.UserIsAuthorized(userIdentity, Settings.AutomaticAddAllowed, Settings.AutomaticAddDenied))
)
{
#if DEBUG
ApplicationLog.WriteInformationEvent("User is allowed to be automatically added!", EventID.DebugMessage);
#endif
LocalAdministratorGroup.AddPrincipal(userIdentity, null, null);
}
}
else
{
// TODO: i18n.
ApplicationLog.WriteWarningEvent("User identity is null.", EventID.DebugMessage);
}
break;
/*
* // The user has reconnected or logged on to a remote session.
* case SessionChangeReason.RemoteConnect:
* ApplicationLog.WriteInformationEvent(string.Format("Remote connect. Session ID: {0}", changeDescription.SessionId), EventID.SessionChangeEvent);
* break;
*/
/*
* // The user has disconnected or logged off from a remote session.
* case SessionChangeReason.RemoteDisconnect:
* ApplicationLog.WriteInformationEvent(string.Format("Remote disconnect. Session ID: {0}", changeDescription.SessionId), EventID.SessionChangeEvent);
* break;
*/
/*
* // The user has locked their session.
* case SessionChangeReason.SessionLock:
* ApplicationLog.WriteInformationEvent(string.Format("Session lock. Session ID: {0}", changeDescription.SessionId), EventID.SessionChangeEvent);
* break;
*/
/*
* // The user has unlocked their session.
* case SessionChangeReason.SessionUnlock:
* ApplicationLog.WriteInformationEvent(string.Format("Session unlock. Session ID: {0}", changeDescription.SessionId), EventID.SessionChangeEvent);
* break;
*/
}
base.OnSessionChange(changeDescription);
}
