include/sfx2/docmacromode.hxx

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  19
  20 #ifndef INCLUDED_SFX2_DOCMACROMODE_HXX
  21 #define INCLUDED_SFX2_DOCMACROMODE_HXX
  22
  23 #include <sfx2/dllapi.h>
  24 #include <sfx2/signaturestate.hxx>
  25
  26 #include <com/sun/star/uno/Reference.hxx>
  27
  28 #include <memory>
  29
  30 namespace com::sun::star::document { class XEmbeddedScripts; }
  31 namespace com::sun::star::embed { class XStorage; }
  32 namespace com::sun::star::script { class XLibraryContainer; }
  33 namespace com::sun::star::task { class XInteractionHandler; }
  34
  35
  36 namespace sfx2
  37 {
  38
  39
  40     //= IMacroDocumentAccess
  41
  42     /** provides access to several settings of a document, which are needed by ->DocumentMacroMode
  43         to properly determine the current macro execution mode of this document
  44     */
  45     class SAL_NO_VTABLE IMacroDocumentAccess
  46     {
  47     public:
  48         /** retrieves the current MacroExecutionMode.
  49
  50             Usually, this is initialized from the media descriptor used to load the document,
  51             respectively the one passed into the document's XModel::attachResource call.
  52
  53             If no such mode was passed there, document implementations should return
  54             MacroExecMode::NEVER_EXECUTE.
  55
  56             @see css::document::MediaDescriptor::MacroExecutionMode
  57             @see css::frame::XComponentLoader::loadComponentFromURL
  58             @see css::frame::XModel::attachResource
  59
  60             @see setCurrentMacroExecMode
  61
  62             @todo
  63                 Effectively, this is the MacroExecutionMode of the MediaDescriptor of
  64                 the document. Thus, this setting could be obtained from the XModel
  65                 directly. We should introduce a getDocumentModel method here, which
  66                 can be used for this and other purposes.
  67         */
  68         virtual sal_Int16
  69                     getCurrentMacroExecMode() const = 0;
  70
  71         /** sets the MacroExecutionMode of the document, as calculated by the DocumentMacroMode
  72             class.
  73
  74             Effectively, the existence of this method means that the responsibility
  75             to store the current macro execution mode is not with the DocumentMacroMode
  76             instance, but with the document instance itself.
  77
  78             Usually, a document implementation will simply put the macro execution mode
  79             into its media descriptor, as returned by XModel::getArgs.
  80
  81             @see css::document::MediaDescriptor::MacroExecutionMode
  82             @see css::frame::XComponentLoader::loadComponentFromURL
  83             @see css::frame::XModel::attachResource
  84
  85             see getCurrentMacroExecMode
  86         */
  87         virtual void
  88                     setCurrentMacroExecMode( sal_uInt16 ) = 0;
  89
  90         /** returns the origin of the document
  91
  92             This usually is the document's location, or, if the document has been
  93             newly created from a template, then the location of the template. Location
  94             here means the complete path of the document, including the file name.
  95
  96             @todo
  97                 This probably can also be obtained from the XModel, by calling getURL
  98                 or getLocation. If both are empty, then we need a UNO way to obtain
  99                 the URL of the underlying template document - if any. If we have this,
 100                 we could replace this method with a newly introduced method
 101                 getDocumentModel and some internal code.
 102         */
 103         virtual OUString
 104                     getDocumentLocation() const = 0;
 105
 106         /** checks whether the document's storage contains sub storages with macros or scripts
 107
 108             A default implementation of this method will simply call DocumentMacroMode::storageHasMacros
 109             with the document's root storage. However, there might be document types where this
 110             isn't sufficient (e.g. database documents which contain sub documents which can also
 111             contain macro/script storages).
 112         */
 113         virtual bool
 114                     documentStorageHasMacros() const = 0;
 115
 116         /** checks whether the document's contained calls to macros or scripts after loading
 117
 118         */
 119         virtual bool
 120                     macroCallsSeenWhileLoading() const = 0;
 121
 122         /** provides access to the XEmbeddedScripts interface of the document
 123
 124             Implementations are allowed to return <NULL/> here if and only if they
 125             do not (yet) support embedding scripts.
 126
 127             @todo
 128                 can also be replaced with a call to the (to be introduced) getDocumentModel
 129                 method, and a queryInterface.
 130         */
 131         virtual css::uno::Reference< css::document::XEmbeddedScripts >
 132                     getEmbeddedDocumentScripts() const = 0;
 133
 134         /** returns the state of the signatures for the scripts embedded in the document
 135
 136             Note: On the medium run, the signature handling of a document should be outsourced
 137             into a dedicated class, instead of being hard-wired into the SfxObjectShell. This
 138             class could then be used outside the SfxObjectShell (e.g. in Base documents), too.
 139             When this happens, this method here becomes should be replaced by a method at this
 140             new class.
 141
 142             @seealso <sfx2/signaturestate.hxx>
 143         */
 144         virtual SignatureState
 145                     getScriptingSignatureState() = 0;
 146
 147         /** allows to detect whether there is a trusted scripting signature
 148
 149             Note: On the medium run, the signature handling of a document should be outsourced
 150             into a dedicated class, instead of being hard-wired into the SfxObjectShell. This
 151             class could then be used outside the SfxObjectShell (e.g. in Base documents), too.
 152             When this happens, this method here should be replaced by a method at this
 153             new class.
 154
 155             @seealso <sfx2/signaturestate.hxx>
 156         */
 157         virtual bool
 158                     hasTrustedScriptingSignature( bool bAllowUIToAddAuthor ) = 0;
 159
 160     protected:
 161         ~IMacroDocumentAccess() {}
 162     };
 163
 164
 165     //= DocumentMacroMode
 166
 167     struct DocumentMacroMode_Data;
 168
 169     /** encapsulates handling the macro mode of a document
 170
 171         @see css::document::MacroExecMode
 172     */
 173     class SFX2_DLLPUBLIC DocumentMacroMode
 174     {
 175     public:
 176         /** creates an instance
 177
 178         @param _rDocumentAccess
 179             access to the document which this instance works for. Must live as long as the
 180             DocumentMacroMode instance lives, at least
 181         */
 182         DocumentMacroMode( IMacroDocumentAccess& _rDocumentAccess );
 183
 184         /** allows macro execution in the document
 185
 186             Effectively, the macro mode is set to MacroExecMode::ALWAYS_EXECUTE_NO_WARN.
 187
 188             @return
 189                 <TRUE/>, always
 190         */
 191         bool    allowMacroExecution();
 192
 193         /** disallows macro execution in the document
 194
 195             Effectively, the macro mode is set to MacroExecMode::NEVER_EXECUTE.
 196
 197             @return
 198                 <TRUE/>, always
 199         */
 200         bool    disallowMacroExecution();
 201
 202         /** checks whether the document allows executing contained macros.
 203
 204             The method transforms the current macro execution mode into either
 205             ALWAYS_EXECUTE_NO_WARN or NEVER_EXECUTE, depending on the current value,
 206             possible configuration settings, and possible user interaction.
 207
 208             @param _rxInteraction
 209                 A handler for interactions which might become necessary.
 210                 This includes
 211                 <ul><li>Asking the user for confirmation for macro execution.</li>
 212                     <li>Telling the user that macro execution is disabled.</li>
 213                 </ul>
 214
 215                 If the user needs to be asked for macro execution confirmation, and if
 216                 this parameter is <NULL/>, the most defensive assumptions will be made,
 217                 effectively disabling macro execution.
 218
 219             @param bHasValidContentSignature
 220                 Whether the document content is signed and the signature is valid.
 221
 222             @return
 223                 <TRUE/> if and only if macro execution in this document is allowed.
 224         */
 225         bool    adjustMacroMode(
 226                     const css::uno::Reference< css::task::XInteractionHandler >& _rxInteraction,
 227                     bool bHasValidContentSignature = false
 228                 );
 229
 230         /** determines whether macro execution is disallowed
 231
 232             There's a number of reasons why macro execution could be disallowed:
 233             <ul><li>Somebody called ->disallowMacroExecution</li>
 234                 <li>Macro execution is disabled globally, via the security options</li>
 235                 <li>Macro execution mode was not defined initially, and the user denied
 236                     executing macros for this particular document.</li>
 237             </ul>
 238
 239             Note that if this method returns <FALSE/>, then subsequent calls of
 240             ->adjustMacroMode can still return <FALSE/>.
 241             That is, if the current macro execution mode for the document is not yet known
 242             (and in particular <em>not</em> MacroExecMode::NEVER_EXECUTE), then ->isMacroExecutionDisallowed
 243             will return <FALSE/>.
 244             However, a subsequent call to ->adjustMacroMode can result in the user
 245             denying macro execution, in which ->adjustMacroMode will return <FALSE/>,
 246             and the next call to isMacroExecutionDisallowed will return <TRUE/>.
 247         */
 248         bool    isMacroExecutionDisallowed() const;
 249
 250         /** determines whether the document actually has a macros library
 251
 252             Effectively, this method checks the Basic library container (as returned by
 253             IMacroDocumentAccess::getEmbeddedDocumentScripts().getBasicLibraries) for
 254             content.
 255         */
 256         bool    hasMacroLibrary() const;
 257
 258         bool hasUnsignedContentError() const;
 259
 260         /** determines whether the given document storage has sub storages containing scripts
 261             or macros.
 262
 263             Effectively, the method checks for the presence of a sub-storage name "Scripts" (where
 264             BeanShell-/JavaScript-/Python-Scripts are stored, and a sub storage named "Basic" (where
 265             Basic scripts are stored).
 266         */
 267         static bool storageHasMacros( const css::uno::Reference< css::embed::XStorage >& _rxStorage );
 268
 269         static bool containerHasBasicMacros( const css::uno::Reference< css::script::XLibraryContainer >& xContainer );
 270         /** checks the macro execution mode while loading the document.
 271
 272             This must be called when the loading is effectively finished, but before any macro action
 273             happened.
 274
 275             The method will disallow macro execution for this document if it is disabled
 276             globally (SvtSecurityOptions::IsMacroDisabled). Otherwise, it will check whether
 277             the document contains a macro storage or macro libraries. If so, it will
 278             properly calculate the MacroExecutionMode by calling adjustMacroMode.
 279
 280             If the document doesn't contain macros, yet, then the macro execution for this
 281             document will be allowed (again: unless disabled globally), since in this case
 282             macros which later are newly created by the user should be allowed, of course.
 283
 284             @return
 285                 <TRUE/> if and only if macro execution is allowed in the document
 286
 287             @see isMacroExecutionDisallowed
 288             @see IMacroDocumentAccess::documentStorageHasMacros
 289             @see IMacroDocumentAccess::macroCallsSeenWhileLoading
 290             @see hasMacroLibrary
 291             @see IMacroDocumentAccess::checkForBrokenScriptingSignatures
 292         */
 293         bool
 294                 checkMacrosOnLoading(
 295                     const css::uno::Reference< css::task::XInteractionHandler >& _rxInteraction,
 296                     bool bHasValidContentSignature = false
 297                 );
 298
 299     private:
 300         std::shared_ptr< DocumentMacroMode_Data >   m_xData;
 301     };
 302
 303
 304 } // namespace sfx2
 305
 306
 307 #endif // INCLUDED_SFX2_DOCMACROMODE_HXX
 308
 309 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */