Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Workflow.Activities/Role/DirectoryGroupQuery.cs

@@ -0,0 +1,88 @@
+#region Using directives
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+using System.Net;
+using System.DirectoryServices;
+
+#endregion
+
+namespace System.Workflow.Activities
+{
+    [Serializable]
+    sealed internal class DirectoryGroupQuery : IDirectoryOperation
+    {
+        public DirectoryGroupQuery()
+        {
+        }
+
+        public void GetResult(DirectoryEntry rootEntry, DirectoryEntry currentEntry, List<DirectoryEntry> response)
+        {
+            if (response == null)
+                throw new ArgumentNullException("response");
+
+            Stack<DirectoryEntry> entries = new Stack<DirectoryEntry>();
+            entries.Push(currentEntry);
+
+            while (entries.Count != 0)
+            {
+                DirectoryEntry entry = entries.Pop();
+
+                bool isGroup = false;
+                if (Contains(entry.Properties.PropertyNames, "objectClass"))
+                {
+                    foreach (String value in entry.Properties["objectClass"])
+                    {
+                        if (String.Compare(value, ActiveDirectoryRoleFactory.Configuration.Group, StringComparison.Ordinal) == 0)
+                        {
+                            isGroup = true;
+                            break;
+                        }
+                    }
+
+                    if (isGroup)
+                    {
+                        if (Contains(entry.Properties.PropertyNames, ActiveDirectoryRoleFactory.Configuration.Member))
+                        {
+                            foreach (String propValue in entry.Properties[ActiveDirectoryRoleFactory.Configuration.Member])
+                            {
+                                entries.Push(new DirectoryEntry(BuildUri(propValue)));
+                            }
+                        }
+                    }
+                    else
+                    {
+                        response.Add(entry);
+                    }
+                }
+            }
+        }
+
+        private static bool Contains(ICollection propertyNames, String testPropertyName)
+        {
+            foreach (String propertyName in propertyNames)
+            {
+                if (String.Compare(propertyName, testPropertyName, StringComparison.Ordinal) == 0)
+                    return true;
+            }
+            return false;
+        }
+
+        private static String BuildUri(String propValue)
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("LDAP://");
+            for (int i = 0; i < propValue.Length; ++i)
+            {
+                if (propValue[i] == '/')
+                    sb.Append("\\/");
+                else
+                    sb.Append(propValue[i]);
+            }
+            return sb.ToString();
+        }
+    }
+
+}