Pin Active Directory provider to domain controller

LIAMActiveDirectory/C4IT.LIAM.AD.cs

@@ -30,6 +30,8 @@ namespace C4IT.LIAM
     public class cLiamProviderAD : cLiamProviderBase
     {
         public static Guid adModuleId = new Guid("e820a625-0653-ee11-b886-00155d300101");
+        private const string AdditionalConfigurationAdDomainControllersKey = "AdDomainControllers";
+        private const string AdditionalConfigurationActiveDirectoryDomainControllersKey = "ActiveDirectoryDomainControllers";
         public readonly cActiveDirectoryBase activeDirectoryBase = new cActiveDirectoryBase();
         private readonly ADServiceGroupCreator _serviceGroupCreator;
 
@@ -76,6 +78,7 @@ namespace C4IT.LIAM
                 var LI = new cADLogonInfo()
                 {
                     Domain = Domain,
+                    DomainControllers = GetConfiguredDomainControllers(),
                     User = Credential?.Identification,
                     UserSecret = Credential?.Secret,
                     TargetGroupPath = this.GroupPath
@@ -95,6 +98,26 @@ namespace C4IT.LIAM
             return false;
         }
 
+        private string GetConfiguredDomainControllers()
+        {
+            var value = GetAdditionalConfigurationValue(AdditionalConfigurationAdDomainControllersKey);
+            if (!string.IsNullOrWhiteSpace(value))
+                return value;
+
+            return GetAdditionalConfigurationValue(AdditionalConfigurationActiveDirectoryDomainControllersKey);
+        }
+
+        private string GetAdditionalConfigurationValue(string key)
+        {
+            if (AdditionalConfiguration == null || string.IsNullOrWhiteSpace(key))
+                return string.Empty;
+
+            if (!AdditionalConfiguration.TryGetValue(key, out var rawValue) || string.IsNullOrWhiteSpace(rawValue))
+                return string.Empty;
+
+            return rawValue.Trim();
+        }
+
         public override async Task<List<cLiamDataAreaBase>> getDataAreasAsync(int Depth = -1)
         {
             var CM = MethodBase.GetCurrentMethod();
@@ -368,4 +391,4 @@ namespace C4IT.LIAM
             this.scope = secGroup.Scope.ToString();
         }
     }
-}
+}