1 files changed, 109 insertions, 0 deletions
diff --git a/svl/source/misc/PasswordHelper.cxx b/svl/source/misc/PasswordHelper.cxx
new file mode 100644
index 000000000000..a1125306eb7b
--- /dev/null
+++ b/svl/source/misc/PasswordHelper.cxx
@@ -0,0 +1,109 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: PasswordHelper.cxx,v $
+ * $Revision: 1.5 $
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_svl.hxx"
+
+
+#ifndef GCC
+#endif
+#include "PasswordHelper.hxx"
+#include <rtl/digest.h>
+#include <tools/string.hxx>
+
+using namespace com::sun::star;
+
+void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen)
+{
+    rPassHash.realloc(RTL_DIGEST_LENGTH_SHA1);
+
+    rtlDigestError aError = rtl_digest_SHA1 (pPass, nLen, reinterpret_cast<sal_uInt8*>(rPassHash.getArray()), rPassHash.getLength());
+    if (aError != rtl_Digest_E_None)
+    {
+        rPassHash.realloc(0);
+    }
+}
+
+void SvPasswordHelper::GetHashPasswordLittleEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    xub_StrLen nSize(sPass.Len());
+    sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
+
+    for (xub_StrLen i = 0; i < nSize; ++i)
+    {
+        sal_Unicode ch(sPass.GetChar(i));
+        pCharBuffer[2 * i] = static_cast< sal_Char >(ch & 0xFF);
+        pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch >> 8);
+    }
+
+    GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
+
+    delete[] pCharBuffer;
+}
+
+void SvPasswordHelper::GetHashPasswordBigEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    xub_StrLen nSize(sPass.Len());
+    sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
+
+    for (xub_StrLen i = 0; i < nSize; ++i)
+    {
+        sal_Unicode ch(sPass.GetChar(i));
+        pCharBuffer[2 * i] = static_cast< sal_Char >(ch >> 8);
+        pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch & 0xFF);
+    }
+
+    GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
+
+    delete[] pCharBuffer;
+}
+
+void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
+{
+    GetHashPasswordLittleEndian(rPassHash, sPass);
+}
+
+bool SvPasswordHelper::CompareHashPassword(const uno::Sequence<sal_Int8>& rOldPassHash, const String& sNewPass)
+{
+    bool bResult = false;
+
+    uno::Sequence<sal_Int8> aNewPass(RTL_DIGEST_LENGTH_SHA1);
+    GetHashPasswordLittleEndian(aNewPass, sNewPass);
+    if (aNewPass == rOldPassHash)
+        bResult = true;
+    else
+    {
+        GetHashPasswordBigEndian(aNewPass, sNewPass);
+        bResult = (aNewPass == rOldPassHash);
+    }
+
+    return bResult;
+}
+