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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 .
+ */
+
+#ifndef INCLUDED_SVL_PASSWORDHELPER_HXX
+#define INCLUDED_SVL_PASSWORDHELPER_HXX
+
+#include <sal/config.h>
+
+#include <string_view>
+#include <optional>
+
+#include <svl/svldllapi.h>
+#include <sal/types.h>
+#include <com/sun/star/uno/Sequence.hxx>
+
+class SvPasswordHelper
+{
+ static void GetHashPasswordLittleEndian(css::uno::Sequence<sal_Int8>& rPassHash, std::u16string_view sPass);
+ static void GetHashPasswordBigEndian(css::uno::Sequence<sal_Int8>& rPassHash, std::u16string_view sPass);
+
+public:
+ SVL_DLLPUBLIC static void GetHashPassword(css::uno::Sequence <sal_Int8>& rPassHash, const char* pPass, sal_uInt32 nLen);
+
+ SVL_DLLPUBLIC static void GetHashPassword(css::uno::Sequence<sal_Int8>& rPassHash, std::u16string_view sPass);
+ SVL_DLLPUBLIC static void GetHashPasswordSHA1UTF8(css::uno::Sequence<sal_Int8>& rPassHash, std::u16string_view sPass);
+ SVL_DLLPUBLIC static void GetHashPasswordSHA256(css::uno::Sequence<sal_Int8>& rPassHash, std::u16string_view sPass);
+ /**
+ Use this method to compare a given string with another given Hash value.
+ This is necessary, because in older versions exists different hashes of the same string. They were endian dependent.
+ We need this to handle old files. This method will compare against big and
+ little endian UTF-16.
+ tdf#115483: also check 2 different new ways of hashing that were added in
+ ODF 1.2, requiring UTF-8 encoding.
+ */
+ SVL_DLLPUBLIC static bool CompareHashPassword(const css::uno::Sequence<sal_Int8>& rOldPassHash, std::u16string_view sNewPass);
+
+ /** Get password strength percentage
+
+ Maps the calculated password entropy bit amount to password strength percentage:
+ 0 bits -> 0%
+ >= 112 bits -> 100%
+
+ @param pPassword null terminated password string.
+ @returns Password strength percentage in the range [0.0, 100.0]
+ */
+ SVL_DLLPUBLIC static double GetPasswordStrengthPercentage(const char* pPassword);
+ SVL_DLLPUBLIC static double GetPasswordStrengthPercentage(const OUString& aPassword);
+
+ /** Checks if the password meets the password policies
+
+ @param pPassword null terminated password string.
+ @param oPasswordPolicy Regular expression string that defines the password policy.
+
+ @returns true if password meets the policy or there is no policy enforced.
+ */
+ SVL_DLLPUBLIC static bool PasswordMeetsPolicy(const char* pPassword,
+ const std::optional<OUString>& oPasswordPolicy);
+ SVL_DLLPUBLIC static bool PasswordMeetsPolicy(const OUString& aPassword,
+ const std::optional<OUString>& oPasswordPolicy);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */