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libreoffice/dbaccess/source/core/inc/ModelImpl.hxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

600 lines
22 KiB
C++

/* -*- 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 "ContentHelper.hxx"
#include "documentevents.hxx"
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/beans/XPropertyBag.hpp>
#include <com/sun/star/document/XDocumentSubStorageSupplier.hpp>
#include <com/sun/star/embed/XStorage.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/lang/XEventListener.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/reflection/ProxyFactory.hpp>
#include <com/sun/star/script/XStorageBasedLibraryContainer.hpp>
#include <com/sun/star/sdbc/XDataSource.hpp>
#include <com/sun/star/util/XNumberFormatsSupplier.hpp>
#include <comphelper/namedvaluecollection.hxx>
#include <cppuhelper/weakref.hxx>
#include <vcl/svapp.hxx>
#include <sfx2/docmacromode.hxx>
#include <sfx2/docstoragemodifylistener.hxx>
#include <unotools/sharedunocomponent.hxx>
#include <rtl/digest.h>
#include <rtl/ref.hxx>
#include <o3tl/enumarray.hxx>
#include <unotools/weakref.hxx>
#include <span>
namespace comphelper
{
class NamedValueCollection;
}
namespace dbaccess
{
class OCommandContainer;
typedef std::vector< css::uno::WeakReference< css::sdbc::XConnection > > OWeakConnectionArray;
struct DefaultPropertyValue
{
OUString Name;
css::uno::Any DefaultValue;
const css::uno::Type& ValueType;
DefaultPropertyValue(const OUString& _aName, const css::uno::Any& _rDefaultValue)
:Name( _aName )
,DefaultValue( _rDefaultValue )
,ValueType( _rDefaultValue.getValueType() )
{
OSL_ENSURE( ValueType.getTypeClass() != css::uno::TypeClass_VOID,
"AsciiPropertyValue::AsciiPropertyValue: NULL values not allowed here, use the other CTOR for this!" );
}
DefaultPropertyValue(const OUString& _aName, const css::uno::Type& _rValeType)
:Name( _aName )
,ValueType( _rValeType )
{
OSL_ENSURE( ValueType.getTypeClass() != css::uno::TypeClass_VOID,
"AsciiPropertyValue::AsciiPropertyValue: VOID property values not supported!" );
}
};
// ODatabaseModelImpl
typedef ::utl::SharedUNOComponent< css::embed::XStorage > SharedStorage;
class ODatabaseContext;
class DocumentStorageAccess;
class ODatabaseSource;
class ODatabaseDocument;
/** The class OSharedConnectionManager implements a structure to share connections.
It owns the master connections which will be disposed when the last connection proxy is gone.
*/
// need to hold the digest
struct TDigestHolder
{
sal_uInt8 m_pBuffer[RTL_DIGEST_LENGTH_SHA1];
TDigestHolder()
{
m_pBuffer[0] = 0;
}
};
class OSharedConnectionManager : public ::cppu::WeakImplHelper< css::lang::XEventListener >
{
// contains the currently used master connections
struct TConnectionHolder
{
css::uno::Reference< css::sdbc::XConnection > xMasterConnection;
oslInterlockedCount nALiveCount;
};
// the less-compare functor, used for the stl::map
struct TDigestLess
{
bool operator() (const TDigestHolder& x, const TDigestHolder& y) const
{
sal_uInt32 i;
for(i=0;i < RTL_DIGEST_LENGTH_SHA1 && (x.m_pBuffer[i] >= y.m_pBuffer[i]); ++i)
;
return i < RTL_DIGEST_LENGTH_SHA1;
}
};
typedef std::map< TDigestHolder,TConnectionHolder,TDigestLess> TConnectionMap; // holds the master connections
typedef std::map< css::uno::Reference< css::sdbc::XConnection >,TConnectionMap::iterator> TSharedConnectionMap;// holds the shared connections
::osl::Mutex m_aMutex;
TConnectionMap m_aConnections; // remember the master connection in conjunction with the digest
TSharedConnectionMap m_aSharedConnection; // the shared connections with conjunction with an iterator into the connections map
css::uno::Reference< css::reflection::XProxyFactory > m_xProxyFactory;
protected:
virtual ~OSharedConnectionManager() override;
public:
explicit OSharedConnectionManager(const css::uno::Reference< css::uno::XComponentContext >& _rxContext);
void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
css::uno::Reference< css::sdbc::XConnection > getConnection( const OUString& url,
const OUString& user,
const OUString& password,
const css::uno::Sequence< css::beans::PropertyValue >& _aInfo,
ODatabaseSource* _pDataSource);
void addEventListener(const css::uno::Reference< css::sdbc::XConnection >& _rxConnection, TConnectionMap::iterator const & _rIter);
};
class ODatabaseModelImpl :public ::sfx2::IMacroDocumentAccess
,public ::sfx2::IModifiableDocument
{
public:
enum class ObjectType
{
Form = 0,
Report = 1,
Query = 2,
Table = 3,
LAST = Table
};
enum class EmbeddedMacros
{
// the database document (storage) itself contains macros
DocumentWide,
// there are sub document( storage)s containing macros
SubDocument,
// there are no known macro( storage)s
NONE
};
private:
unotools::WeakReference< ODatabaseDocument > m_xModel;
unotools::WeakReference< ODatabaseSource > m_xDataSource;
rtl::Reference<DocumentStorageAccess> m_pStorageAccess;
o3tl::enumarray< ObjectType, TContentPtr > m_aContainer; // one for each ObjectType
::sfx2::DocumentMacroMode m_aMacroMode;
sal_Int16 m_nImposedMacroExecMode;
css::uno::Reference< css::script::XStorageBasedLibraryContainer > m_xBasicLibraries;
css::uno::Reference< css::script::XStorageBasedLibraryContainer > m_xDialogLibraries;
SharedStorage m_xDocumentStorage;
::rtl::Reference< ::sfx2::DocumentStorageModifyListener > m_pStorageModifyListener;
ODatabaseContext& m_rDBContext;
DocumentEventsData m_aDocumentEvents;
::comphelper::NamedValueCollection m_aMediaDescriptor;
/// the URL the document was loaded from
OUString m_sDocFileLocation;
oslInterlockedCount m_refCount;
/// do we have any object (forms/reports) which contains macros?
::std::optional< EmbeddedMacros > m_aEmbeddedMacros;
/// true if setting the Modified flag of the document is currently locked
bool m_bModificationLock;
/// true if and only if a database document existed previously (though meanwhile disposed), and was already initialized
bool m_bDocumentInitialized;
/** the URL which the document should report as its URL
This might differ from ->m_sDocFileLocation in case the document was loaded
as part of a crash recovery process. In this case, ->m_sDocFileLocation points to
the temporary file where the DB had been saved to, after a crash.
->m_sDocumentURL then is the URL of the document which actually had
been recovered.
*/
OUString m_sDocumentURL;
SignatureState m_nScriptingSignatureState;
public:
OWeakConnectionArray m_aConnections;
const css::uno::Reference< css::uno::XComponentContext > m_aContext;
public:
css::uno::WeakReference< css::container::XNameAccess > m_xCommandDefinitions;
unotools::WeakReference< ::dbaccess::OCommandContainer > m_xTableDefinitions;
css::uno::Reference< css::util::XNumberFormatsSupplier >
m_xNumberFormatsSupplier;
OUString m_sConnectURL;
OUString m_sName; // transient, our creator has to tell us the title
OUString m_sUser;
OUString m_aPassword; // transient !
OUString m_sFailedPassword;
css::uno::Sequence< css::beans::PropertyValue>
m_aLayoutInformation;
sal_Int32 m_nLoginTimeout;
bool m_bReadOnly : 1;
bool m_bPasswordRequired : 1;
bool m_bSuppressVersionColumns : 1;
bool m_bModified : 1;
bool m_bDocumentReadOnly : 1;
bool m_bMacroCallsSeenWhileLoading : 1;
css::uno::Reference< css::beans::XPropertyBag >
m_xSettings;
css::uno::Sequence< OUString > m_aTableFilter;
css::uno::Sequence< OUString > m_aTableTypeFilter;
rtl::Reference< OSharedConnectionManager > m_xSharedConnectionManager;
css::uno::Reference<css::awt::XWindow>
m_xDialogParent;
sal_uInt16 m_nControllerLockCount;
void reset();
/** determines whether the database document has an embedded data storage
*/
bool isEmbeddedDatabase() const { return m_sConnectURL.startsWith("sdbc:embedded:"); }
/** stores the embedded storage ("database")
@param _bPreventRootCommits
Normally, committing the embedded storage results in also committing the root storage
- this is an automatism for data safety reasons.
If you pass <TRUE/> here, committing the root storage is prevented for this particular
call.
@return <TRUE/> if the storage could be committed, otherwise <FALSE/>
*/
bool commitEmbeddedStorage( bool _bPreventRootCommits = false );
/// commits all sub storages
void commitStorages();
ODatabaseModelImpl(
const css::uno::Reference< css::uno::XComponentContext >& _rxContext,
ODatabaseContext& _pDBContext
);
virtual ~ODatabaseModelImpl();
ODatabaseModelImpl(
OUString _sRegistrationName,
const css::uno::Reference< css::uno::XComponentContext >& _rxContext,
ODatabaseContext& _rDBContext
);
// XEventListener
/// @throws css::uno::RuntimeException
void disposing( const css::lang::EventObject& Source );
void setModified( bool bModified );
void dispose();
const OUString& getURL() const { return m_sDocumentURL; }
const OUString& getDocFileLocation() const { return m_sDocFileLocation; }
css::uno::Reference< css::embed::XStorage >
getStorage( const ObjectType _eType );
// helper
const css::uno::Reference< css::util::XNumberFormatsSupplier >&
getNumberFormatsSupplier();
DocumentEventsData&
getDocumentEvents() { return m_aDocumentEvents; }
const ::comphelper::NamedValueCollection&
getMediaDescriptor() const { return m_aMediaDescriptor; }
void setResource(
const OUString& _rURL,
const css::uno::Sequence< css::beans::PropertyValue >& _rArgs
);
void setDocFileLocation(
const OUString& i_rLoadedFrom
);
static ::comphelper::NamedValueCollection
stripLoadArguments( const ::comphelper::NamedValueCollection& _rArguments );
// other stuff
// disposes all elements in m_aStorages, and clears it
void disposeStorages();
/// creates a ->css::embed::StorageFactory
css::uno::Reference< css::lang::XSingleServiceFactory >
createStorageFactory() const;
/// commits our storage
void commitRootStorage();
/// commits a given storage if it's not readonly, ignoring (but asserting) all errors
bool commitStorageIfWriteable_ignoreErrors(
const css::uno::Reference< css::embed::XStorage >& _rxStorage
);
void clearConnections();
css::uno::Reference< css::embed::XStorage > const & getOrCreateRootStorage();
css::uno::Reference< css::embed::XStorage > const & getRootStorage() const { return m_xDocumentStorage.getTyped(); }
void resetRootStorage() { impl_switchToStorage_throw( nullptr ); }
/** returns the data source. If it doesn't exist it will be created
*/
css::uno::Reference< css::sdbc::XDataSource> getOrCreateDataSource();
/** returns the model, if there already exists one
*/
rtl::Reference< ODatabaseDocument > getModel_noCreate() const;
/** returns a new ->ODatabaseDocument
@precond
No ->ODatabaseDocument exists so far
@seealso
getModel_noCreate
*/
rtl::Reference< ODatabaseDocument > createNewModel_deliverOwnership();
struct ResetModelAccess { friend class ODatabaseDocument; private: ResetModelAccess() { } };
/** resets the model to NULL
Only to be called when the model is being disposed
*/
void modelIsDisposing( const bool _wasInitialized, ResetModelAccess );
bool hadInitializedDocument() const { return m_bDocumentInitialized; }
DocumentStorageAccess*
getDocumentStorageAccess();
css::uno::Reference< css::document::XDocumentSubStorageSupplier >
getDocumentSubStorageSupplier();
void acquire();
void release();
/// returns all known data source settings, including their default values
static std::span<const DefaultPropertyValue> getDefaultDataSourceSettings();
/** retrieves the requested container of objects (forms/reports/tables/queries)
*/
TContentPtr& getObjectContainer( const ObjectType _eType );
/** returns the name of the storage which is used to stored objects of the given type, if applicable
*/
static OUString
getObjectContainerStorageName( const ObjectType _eType );
/** determines whether a given object storage contains macros
*/
static bool objectHasMacros(
const css::uno::Reference< css::embed::XStorage >& _rxContainerStorage,
const OUString& _rPersistentName
);
/** determines which kind of embedded macros are present in the document
*/
EmbeddedMacros determineEmbeddedMacros();
/** checks our document's macro execution mode, using the interaction handler as supplied with our
load arguments
*/
bool checkMacrosOnLoading();
/** adjusts our document's macro execution mode, without using any UI, assuming the user
would reject execution of macros, if she would have been asked.
If checkMacrosOnLoading has been called before (and thus the macro execution mode
is already adjusted), then the current execution mode is simply returned.
@return
whether or not macro execution is allowed
*/
bool adjustMacroMode_AutoReject();
/** resets our macro execute mode, so next time the checkMacrosOnLoading is called, it will
behave as if it has never been called before
*/
void resetMacroExecutionMode();
/** ensures that ->m_xBasicLibraries resp. m_xDialogLibraries exists
@return
the requested library container. Is never <NULL/>.
@throws RuntimeException
if something does wrong, which indicates a server error in the installation
*/
css::uno::Reference< css::script::XStorageBasedLibraryContainer >
getLibraryContainer( bool _bScript );
/** lets our library containers store themselves into the given root storage
*/
void storeLibraryContainersTo( const css::uno::Reference< css::embed::XStorage >& _rxToRootStorage );
/** rebases the document to the given storage
No actual committing, copying, saving, whatsoever happens. The storage is just remembered as the documents
new storage, nothing more.
@throws css::lang::IllegalArgumentException
if the given storage is <NULL/>
@throws css::lang::RuntimeException
if any of the invoked operations does so
*/
css::uno::Reference< css::embed::XStorage >
switchToStorage(
const css::uno::Reference< css::embed::XStorage >& _rxNewRootStorage
);
/** returns the macro mode imposed by an external instance, which passed it to attachResource
*/
sal_Int16 getImposedMacroExecMode() const
{
return m_nImposedMacroExecMode;
}
void setImposedMacroExecMode( const sal_Int16 _nMacroMode )
{
m_nImposedMacroExecMode = _nMacroMode;
}
public:
// IMacroDocumentAccess overridables
virtual sal_Int16 getCurrentMacroExecMode() const override;
virtual void setCurrentMacroExecMode( sal_uInt16 ) override;
virtual OUString getDocumentLocation() const override;
virtual bool documentStorageHasMacros() const override;
virtual bool macroCallsSeenWhileLoading() const override;
virtual css::uno::Reference< css::document::XEmbeddedScripts > getEmbeddedDocumentScripts() const override;
virtual SignatureState getScriptingSignatureState() override;
virtual bool hasTrustedScriptingSignature(
const css::uno::Reference<css::task::XInteractionHandler>& _rxInteraction) override;
// IModifiableDocument
virtual void storageIsModified() override;
// don't use directly, use the ModifyLock class instead
void lockModify() { m_bModificationLock = true; }
void unlockModify() { m_bModificationLock = false; }
bool isModifyLocked() const { return m_bModificationLock; }
weld::Window* GetFrameWeld();
private:
void impl_construct_nothrow();
css::uno::Reference< css::embed::XStorage > const &
impl_switchToStorage_throw( const css::uno::Reference< css::embed::XStorage >& _rxNewRootStorage );
/** switches to the given document URL, which denotes the logical URL of the document, not necessarily the
URL where the doc was loaded/recovered from
*/
void impl_switchToLogicalURL(
const OUString& i_rDocumentURL
);
};
/** a small base class for UNO components whose functionality depends on an ODatabaseModelImpl
*/
class ModelDependentComponent
{
protected:
::rtl::Reference< ODatabaseModelImpl > m_pImpl;
::osl::Mutex m_aMutex; // only use this to init WeakComponentImplHelper
protected:
explicit ModelDependentComponent( ::rtl::Reference< ODatabaseModelImpl > _model );
virtual ~ModelDependentComponent();
/** returns the component itself
*/
virtual css::uno::Reference< css::uno::XInterface > getThis() const = 0;
::osl::Mutex& getMutex()
{
return m_aMutex;
}
public:
/// checks whether the component is already disposed, throws a DisposedException if so
void checkDisposed() const
{
if ( !m_pImpl.is() )
throw css::lang::DisposedException( u"Component is already disposed."_ustr, getThis() );
}
void lockModify()
{
m_pImpl->lockModify();
}
void unlockModify()
{
m_pImpl->unlockModify();
}
};
class ModifyLock
{
public:
explicit ModifyLock( ModelDependentComponent& _component )
:m_rComponent( _component )
{
m_rComponent.lockModify();
}
~ModifyLock()
{
m_rComponent.unlockModify();
}
private:
ModelDependentComponent& m_rComponent;
};
/** a guard for public methods of objects dependent on an ODatabaseModelImpl instance
Just put this guard onto the stack at the beginning of your method. Don't bother yourself
with a MutexGuard, checks for being disposed, and the like.
*/
class ModelMethodGuard
{
private:
// to avoid deadlocks, lock SolarMutex
SolarMutexResettableGuard m_SolarGuard;
public:
/** constructs the guard
@param _component
the component whose functionality depends on an ODatabaseModelImpl instance
@throws css::lang::DisposedException
If the given component is already disposed
*/
explicit ModelMethodGuard( const ModelDependentComponent& _component )
{
_component.checkDisposed();
}
void clear()
{
// note: this only releases *once* so may still be locked
m_SolarGuard.clear();
}
void reset()
{
m_SolarGuard.reset();
}
};
} // namespace dbaccess
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */