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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/types.h>
#include "global.hxx"
#include "rangelst.hxx"
#include <memory>
class ScDocument;
class ScTableProtectionImpl;
enum ScPasswordHash
{
PASSHASH_SHA1 = 0,
PASSHASH_SHA1_UTF8, // tdf#115483 this is UTF8, previous one is wrong UTF16
PASSHASH_SHA256,
PASSHASH_XL,
PASSHASH_UNSPECIFIED
};
/// OOXML password definitions: algorithmName, hashValue, saltValue, spinCount
struct ScOoxPasswordHash
{
OUString maAlgorithmName; /// "SHA-512", ...
OUString maHashValue; /// base64 encoded hash value
OUString maSaltValue; /// base64 encoded salt value
sal_uInt32 mnSpinCount; /// spin count, iteration runs
ScOoxPasswordHash() : mnSpinCount(0) {}
bool hasPassword() const { return !maHashValue.isEmpty(); }
void clear()
{
// Keep algorithm and spin count.
maHashValue.clear();
maSaltValue.clear();
}
bool verifyPassword( const OUString& aPassText ) const;
};
namespace ScPassHashHelper
{
/** Check for the compatibility of all password hashes. If there is at
* least one hash that needs to be regenerated, it returns true. If all
* hash values are compatible with the specified hash type, then it
* returns false. */
bool needsPassHashRegen(const ScDocument& rDoc, ScPasswordHash eHash1, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED);
OUString getHashURI(ScPasswordHash eHash);
ScPasswordHash getHashTypeFromURI(std::u16string_view rURI);
}
class SAL_NO_VTABLE ScPassHashProtectable
{
public:
virtual ~ScPassHashProtectable() = 0;
virtual bool isProtected() const = 0;
virtual bool isProtectedWithPass() const = 0;
virtual void setProtected(bool bProtected) = 0;
virtual bool isPasswordEmpty() const = 0;
virtual bool hasPasswordHash(ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) const = 0;
virtual void setPassword(const OUString& aPassText) = 0;
virtual css::uno::Sequence<sal_Int8> getPasswordHash(
ScPasswordHash eHash, ScPasswordHash eHas2 = PASSHASH_UNSPECIFIED) const = 0;
virtual const ScOoxPasswordHash& getPasswordHash() const = 0;
virtual void setPasswordHash(
const css::uno::Sequence<sal_Int8>& aPassword,
ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) = 0;
virtual void setPasswordHash( const OUString& rAlgorithmName, const OUString& rHashValue,
const OUString& rSaltValue, sal_uInt32 nSpinCount ) = 0;
virtual bool verifyPassword(const OUString& aPassText) const = 0;
};
class SC_DLLPUBLIC ScDocProtection final : public ScPassHashProtectable
{
public:
enum Option
{
STRUCTURE = 0,
WINDOWS,
NONE ///< last item - used to resize the vector
};
explicit ScDocProtection();
explicit ScDocProtection(const ScDocProtection& r);
virtual ~ScDocProtection() override;
virtual bool isProtected() const override;
virtual bool isProtectedWithPass() const override;
virtual void setProtected(bool bProtected) override;
virtual bool isPasswordEmpty() const override;
virtual bool hasPasswordHash(ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) const override;
virtual void setPassword(const OUString& aPassText) override;
virtual css::uno::Sequence<sal_Int8> getPasswordHash(
ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) const override;
virtual const ScOoxPasswordHash& getPasswordHash() const override;
virtual void setPasswordHash(
const css::uno::Sequence<sal_Int8>& aPassword,
ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) override;
virtual void setPasswordHash( const OUString& rAlgorithmName, const OUString& rHashValue,
const OUString& rSaltValue, sal_uInt32 nSpinCount ) override;
virtual bool verifyPassword(const OUString& aPassText) const override;
bool isOptionEnabled(Option eOption) const;
void setOption(Option eOption, bool bEnabled);
private:
std::unique_ptr<ScTableProtectionImpl> mpImpl;
};
/** Container for the Excel EnhancedProtection feature.
*/
struct ScEnhancedProtection
{
ScRangeListRef maRangeList;
sal_uInt32 mnAreserved;
sal_uInt32 mnPasswordVerifier;
OUString maTitle;
::std::vector< sal_uInt8 > maSecurityDescriptor; // imported as raw BIFF data
OUString maSecurityDescriptorXML; // imported from OOXML
ScOoxPasswordHash maPasswordHash;
ScEnhancedProtection() : mnAreserved(0), mnPasswordVerifier(0) {}
bool hasSecurityDescriptor() const
{
return !maSecurityDescriptor.empty() || !maSecurityDescriptorXML.isEmpty();
}
bool hasPassword() const
{
return mnPasswordVerifier != 0 || maPasswordHash.hasPassword();
}
};
/** sheet protection state container
*
* This class stores sheet's protection state: 1) whether the protection
* is on, 2) password and/or password hash, and 3) any associated
* protection options. This class is also used as a protection state
* container for the undo/redo stack, in which case the password, hash and
* the options need to be preserved even when the protection flag is
* off. */
class SC_DLLPUBLIC ScTableProtection final : public ScPassHashProtectable
{
public:
enum Option
{
AUTOFILTER = 0,
DELETE_COLUMNS,
DELETE_ROWS,
FORMAT_CELLS,
FORMAT_COLUMNS,
FORMAT_ROWS,
INSERT_COLUMNS,
INSERT_HYPERLINKS,
INSERT_ROWS,
OBJECTS,
PIVOT_TABLES,
SCENARIOS,
SELECT_LOCKED_CELLS,
SELECT_UNLOCKED_CELLS,
SORT,
NONE ///< last item - used to resize the vector
};
explicit ScTableProtection();
explicit ScTableProtection(const ScTableProtection& r);
virtual ~ScTableProtection() override;
virtual bool isProtected() const override;
virtual bool isProtectedWithPass() const override;
virtual void setProtected(bool bProtected) override;
virtual bool isPasswordEmpty() const override;
virtual bool hasPasswordHash(ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) const override;
virtual void setPassword(const OUString& aPassText) override;
virtual css::uno::Sequence<sal_Int8> getPasswordHash(
ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) const override;
virtual const ScOoxPasswordHash& getPasswordHash() const override;
virtual void setPasswordHash(
const css::uno::Sequence<sal_Int8>& aPassword,
ScPasswordHash eHash, ScPasswordHash eHash2 = PASSHASH_UNSPECIFIED) override;
virtual void setPasswordHash( const OUString& rAlgorithmName, const OUString& rHashValue,
const OUString& rSaltValue, sal_uInt32 nSpinCount ) override;
virtual bool verifyPassword(const OUString& aPassText) const override;
bool isOptionEnabled(Option eOption) const;
void setOption(Option eOption, bool bEnabled);
void setEnhancedProtection( const ::std::vector< ScEnhancedProtection > & rProt );
const ::std::vector< ScEnhancedProtection > & getEnhancedProtection() const;
bool updateReference( UpdateRefMode, const ScDocument&, const ScRange& rWhere, SCCOL nDx, SCROW nDy, SCTAB nDz );
bool isBlockEditable( const ScRange& rRange ) const;
bool isSelectionEditable( const ScRangeList& rRangeList ) const;
private:
std::unique_ptr<ScTableProtectionImpl> mpImpl;
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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