internal static STAT_CHUNK MarshalChunk(ManagedChunk chunk)
{
STAT_CHUNK result = default(STAT_CHUNK);
result.idChunk = chunk.ID;
Invariant.Assert(chunk.BreakType >= CHUNK_BREAKTYPE.CHUNK_NO_BREAK && chunk.BreakType <= CHUNK_BREAKTYPE.CHUNK_EOC);
result.breakType = chunk.BreakType;
Invariant.Assert(chunk.Flags >= (CHUNKSTATE)0 && chunk.Flags <= (CHUNKSTATE.CHUNK_TEXT | CHUNKSTATE.CHUNK_VALUE | CHUNKSTATE.CHUNK_FILTER_OWNED_VALUE));
result.flags = chunk.Flags;
result.locale = chunk.Locale;
result.idChunkSource = chunk.ChunkSource;
result.cwcStartSource = chunk.StartSource;
result.cwcLenSource = chunk.LenSource;
IndexingFilterMarshaler.MarshalFullPropSpec(chunk.Attribute, ref result.attribute);
return(result);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="encryptedPackage">EncryptedPackageEnvelope to filter on</param>
internal EncryptedPackageFilter(EncryptedPackageEnvelope encryptedPackage)
{
if (encryptedPackage == null)
{
throw new ArgumentNullException("encryptedPackage");
}
//
// Since CorePropertiesFilter is implemented as
// a managed filter (supports IManagedFilter interface),
// IndexingFilterMarshaler is used to get IFilter interface out of it.
//
_filter = new IndexingFilterMarshaler(
new CorePropertiesFilter(
encryptedPackage.PackageProperties
));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="encryptedPackage">EncryptedPackageEnvelope to filter on</param>
internal EncryptedPackageFilter(EncryptedPackageEnvelope encryptedPackage)
{
if (encryptedPackage == null)
{
throw new ArgumentNullException("encryptedPackage");
}
//
// Since CorePropertiesFilter is implemented as
// a managed filter (supports IManagedFilter interface),
// IndexingFilterMarshaler is used to get IFilter interface out of it.
//
_filter = new IndexingFilterMarshaler(
new CorePropertiesFilter(
encryptedPackage.PackageProperties
));
}
public STAT_CHUNK GetChunk()
{
ManagedChunk chunk = this._implementation.GetChunk();
if (chunk != null)
{
return(IndexingFilterMarshaler.MarshalChunk(chunk));
}
if (this.ThrowOnEndOfChunks)
{
throw new COMException(SR.Get("FilterEndOfChunks"), -2147215616);
}
return(new STAT_CHUNK
{
idChunk = 0U
});
}
/// <summary>
/// Move iterator to the next part that has an associated filter and (re)initialize the
/// relevant filter.
/// </summary>
/// <remarks>
/// This function results in _progress and _currentFilter being updated.
/// </remarks>
private void MoveToNextFilter()
{
// Reset _isInternalFilter.
_isInternalFilter = false;
switch (_progress)
{
case Progress.FilteringNotStarted:
#region Progress.FilteringNotStarted
// Filtering not started yet. Start with core properties filter.
IndexingFilterMarshaler corePropertiesFilterMarshaler
= new IndexingFilterMarshaler(
new CorePropertiesFilter(_package.PackageProperties));
// Avoid exception on end of chunks from part filter.
corePropertiesFilterMarshaler.ThrowOnEndOfChunks = false;
_currentFilter = corePropertiesFilterMarshaler;
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
_isInternalFilter = true;
// Update progress to indicate filtering core properties.
_progress = Progress.FilteringCoreProperties;
break;
#endregion Progress.FilteringNotStarted
case Progress.FilteringCoreProperties:
#region Progress.FilteringCoreProperties
// Core properties were being filtered. Next move to content filtering.
#endregion Progress.FilteringCoreProperties
case Progress.FilteringContent:
#region Progress.FilteringContent
//
// Content being filtered. Move to next content part filter if it exists.
// Update progress to indicate filtering content if there is a next content
// filter, else to indicate filtering is completed.
//
if (_currentStream != null)
{
// Close the stream for the previous PackagePart.
_currentStream.Close();
_currentStream = null;
}
for (_currentFilter = null; _partIterator.MoveNext(); _currentFilter = null)
{
PackagePart currentPart = (PackagePart)_partIterator.Current;
ContentType contentType = currentPart.ValidatedContentType();
// Find the filter's CLSID based on the MIME content type.
string filterClsid = GetFilterClsid(contentType, currentPart.Uri);
if (filterClsid != null)
{
_currentFilter = GetFilterFromClsid(new Guid(filterClsid));
if (_currentFilter != null)
{
_currentStream = currentPart.GetSeekableStream();
ManagedIStream stream = new ManagedIStream(_currentStream);
try
{
IPersistStreamWithArrays filterLoader = (IPersistStreamWithArrays)_currentFilter;
filterLoader.Load(stream);
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
// Filter found and properly initialized. Search is over.
break;
}
catch (InvalidCastException)
{
// If a filter does not implement IPersistStream, then, by design, it should
// be ignored.
}
catch (COMException)
{
// Any initialization bug giving rise to an exception in the initialization
// code should be ignored, since this will be due to faulty external code.
}
catch (IOException)
{
// Initialization problem can be reported as IOException. See preceding comment.
}
}
}
//
// No valid externally registered filters found for this content part.
// If this is xaml part, use the internal XamlFilter.
//
if (BindUriHelper.IsXamlMimeType(contentType))
{
if (_currentStream == null)
{
_currentStream = currentPart.GetSeekableStream();
}
IndexingFilterMarshaler xamlFilterMarshaler
= new IndexingFilterMarshaler(new XamlFilter(_currentStream));
// Avoid exception on end of chunks from part filter.
xamlFilterMarshaler.ThrowOnEndOfChunks = false;
_currentFilter = xamlFilterMarshaler;
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
_isInternalFilter = true;
// Filter found and properly initialized. Search is over.
break;
}
if (_currentStream != null)
{
_currentStream.Close();
_currentStream = null;
}
}
if (_currentFilter == null)
{
// Update progress to indicate filtering is completed.
_progress = Progress.FilteringCompleted;
}
else
{
// Tell GetChunk that we are getting input from a new filter.
_firstChunkFromFilter = true;
// Update progress to indicate content being filtered.
_progress = Progress.FilteringContent;
}
break;
#endregion Progress.FilteringContent
case Progress.FilteringCompleted:
#region Progress.FilteringCompleted
Debug.Assert(false);
break;
#endregion Progress.FilteringCompleted
default:
#region Default
Debug.Assert(false);
break;
#endregion Default
}
}
/// <summary>
/// Move iterator to the next part that has an associated filter and (re)initialize the
/// relevant filter.
/// </summary>
/// <remarks>
/// This function results in _progress and _currentFilter being updated.
/// </remarks>
private void MoveToNextFilter()
{
// Reset _isInternalFilter.
_isInternalFilter = false;
switch (_progress)
{
case Progress.FilteringNotStarted:
#region Progress.FilteringNotStarted
// Filtering not started yet. Start with core properties filter.
IndexingFilterMarshaler corePropertiesFilterMarshaler
= new IndexingFilterMarshaler(
new CorePropertiesFilter(_package.PackageProperties));
// Avoid exception on end of chunks from part filter.
corePropertiesFilterMarshaler.ThrowOnEndOfChunks = false;
_currentFilter = corePropertiesFilterMarshaler;
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
_isInternalFilter = true;
// Update progress to indicate filtering core properties.
_progress = Progress.FilteringCoreProperties;
break;
#endregion Progress.FilteringNotStarted
case Progress.FilteringCoreProperties:
#region Progress.FilteringCoreProperties
// Core properties were being filtered. Next move to content filtering.
#endregion Progress.FilteringCoreProperties
case Progress.FilteringContent:
#region Progress.FilteringContent
//
// Content being filtered. Move to next content part filter if it exists.
// Update progress to indicate filtering content if there is a next content
// filter, else to indicate filtering is completed.
//
if (_currentStream != null)
{
// Close the stream for the previous PackagePart.
_currentStream.Close();
_currentStream = null;
}
for (_currentFilter = null; _partIterator.MoveNext(); _currentFilter = null)
{
PackagePart currentPart = (PackagePart)_partIterator.Current;
ContentType contentType = currentPart.ValidatedContentType;
// Find the filter's CLSID based on the MIME content type.
string filterClsid = GetFilterClsid(contentType, currentPart.Uri);
if (filterClsid != null)
{
_currentFilter = GetFilterFromClsid(new Guid(filterClsid));
if (_currentFilter != null)
{
_currentStream = currentPart.GetStream();
ManagedIStream stream = new ManagedIStream(_currentStream);
try
{
IPersistStreamWithArrays filterLoader = (IPersistStreamWithArrays)_currentFilter;
filterLoader.Load(stream);
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
// Filter found and properly initialized. Search is over.
break;
}
catch (InvalidCastException)
{
// If a filter does not implement IPersistStream, then, by design, it should
// be ignored.
}
catch (COMException)
{
// Any initialization bug giving rise to an exception in the initialization
// code should be ignored, since this will be due to faulty external code.
}
catch (IOException)
{
// Initialization problem can be reported as IOException. See preceding comment.
}
}
}
//
// No valid externally registered filters found for this content part.
// If this is xaml part, use the internal XamlFilter.
//
if (BindUriHelper.IsXamlMimeType(contentType))
{
if (_currentStream == null)
{
_currentStream = currentPart.GetStream();
}
IndexingFilterMarshaler xamlFilterMarshaler
= new IndexingFilterMarshaler(new XamlFilter(_currentStream));
// Avoid exception on end of chunks from part filter.
xamlFilterMarshaler.ThrowOnEndOfChunks = false;
_currentFilter = xamlFilterMarshaler;
_currentFilter.Init(_grfFlags, _cAttributes, _aAttributes);
_isInternalFilter = true;
// Filter found and properly initialized. Search is over.
break;
}
if (_currentStream != null)
{
_currentStream.Close();
_currentStream = null;
}
}
if (_currentFilter == null)
{
// Update progress to indicate filtering is completed.
_progress = Progress.FilteringCompleted;
}
else
{
// Tell GetChunk that we are getting input from a new filter.
_firstChunkFromFilter = true;
// Update progress to indicate content being filtered.
_progress = Progress.FilteringContent;
}
break;
#endregion Progress.FilteringContent
case Progress.FilteringCompleted:
#region Progress.FilteringCompleted
Debug.Assert(false);
break;
#endregion Progress.FilteringCompleted
default:
#region Default
Debug.Assert(false);
break;
#endregion Default
}
}
internal static void MarshalFullPropSpec(ManagedFullPropSpec fullPropSpec, ref FULLPROPSPEC native)
{
native.guid = fullPropSpec.Guid;
IndexingFilterMarshaler.MarshalPropSpec(fullPropSpec.Property, ref native.property);
}
public IntPtr GetValue()
{
return(IndexingFilterMarshaler.MarshalPropVariant(this._implementation.GetValue()));
}
public void GetText(ref uint bufCharacterCount, IntPtr pBuffer)
{
IndexingFilterMarshaler.MarshalStringToPtr(this._implementation.GetText((int)(bufCharacterCount - 1U)), ref bufCharacterCount, pBuffer);
}
// Token: 0x06006C34 RID: 27700 RVA: 0x001F1FE0 File Offset: 0x001F01E0
public IFILTER_FLAGS Init(IFILTER_INIT grfFlags, uint cAttributes, FULLPROPSPEC[] aAttributes)
{
ManagedFullPropSpec[] aAttributes2 = IndexingFilterMarshaler.MarshalFullPropSpecArray(cAttributes, aAttributes);
return(this._implementation.Init(grfFlags, aAttributes2));
}
