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diff --git a/extensions/source/config/ldap/ldapaccess.hxx b/extensions/source/config/ldap/ldapaccess.hxx
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+++ b/extensions/source/config/ldap/ldapaccess.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <map>
+
+#ifdef _WIN32
+#if !defined WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <winldap.h>
+#else // !defined _WIN32
+#include <ldap.h>
+#endif // _WIN32
+
+#include <com/sun/star/ldap/LdapGenericException.hpp>
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+
+namespace extensions::config::ldap
+{
+namespace uno = css::uno;
+namespace lang = css::lang;
+namespace ldap = css::ldap;
+
+struct LdapUserProfile;
+
+/** Struct containing the information on LDAP connection */
+struct LdapDefinition
+{
+    /** LDAP server name */
+    OUString mServer;
+    /** LDAP server port number */
+    sal_Int32 mPort;
+    /** Repository base DN */
+    OUString mBaseDN;
+    /** DN to use for "anonymous" connection */
+    OUString mAnonUser;
+    /** Credentials to use for "anonymous" connection */
+    OUString mAnonCredentials;
+    /** User Entity Object Class */
+    OUString mUserObjectClass;
+    /** User Entity Unique Attribute */
+    OUString mUserUniqueAttr;
+
+    LdapDefinition()
+        : mPort(0)
+    {
+    }
+};
+
+typedef std::map<OUString, OUString> LdapData; // key/value pairs
+
+/** Class encapsulating all LDAP functionality */
+class LdapConnection
+{
+    friend struct LdapMessageHolder;
+
+public:
+    /** Default constructor */
+    LdapConnection()
+        : mConnection(nullptr)
+        , mLdapDefinition()
+    {
+    }
+    /** Destructor, releases the connection */
+    ~LdapConnection();
+    /** Make connection to LDAP server
+        @throws ldap::LdapConnectionException
+        @throws ldap::LdapGenericException
+    */
+    void connectSimple(const LdapDefinition& aDefinition);
+
+    /**
+        Gets LdapUserProfile from LDAP repository for specified user
+        @param aUser    name of logged on user
+        @param aUserProfileMap  Map containing LDAP->00o mapping
+       @param aUserProfile     struct for holding OOo values
+
+         @throws css::ldap::LdapGenericException
+                  if an LDAP error occurs.
+    */
+    void getUserProfile(const OUString& aUser, LdapData* data);
+
+    /** finds DN of user
+        @return  DN of User
+        @throws lang::IllegalArgumentException
+        @throws ldap::LdapConnectionException
+        @throws ldap::LdapGenericException
+    */
+    OUString findUserDn(const OUString& aUser);
+
+private:
+    /// @throws ldap::LdapConnectionException
+    void initConnection();
+    void disconnect();
+    /**
+      Indicates whether the connection is in a valid state.
+      @return   sal_True if connection is valid, sal_False otherwise
+      */
+    bool isValid() const { return mConnection != nullptr; }
+
+    /// @throws ldap::LdapConnectionException
+    /// @throws ldap::LdapGenericException
+    void connectSimple();
+
+    /** LDAP connection object */
+    LDAP* mConnection;
+    LdapDefinition mLdapDefinition;
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */