internal Stream OpenOleAttachmentStream()
{
if (this.attachMethod != 6)
{
throw new InvalidOperationException(MsgStorageStrings.NotAnOleAttachment);
}
Stream cacheStream = Streams.CreateTemporaryStorageStream();
MsgStorageWriteStream msgStorageWriteStream = new MsgStorageWriteStream(cacheStream, 0);
msgStorageWriteStream.AddOnCloseNotifier(delegate(MsgStorageWriteStream stream, Exception onCloseException)
{
if (onCloseException != null)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWrite, MsgStorageStrings.ComExceptionThrown, onCloseException));
return;
}
TnefPropertyTag attachDataObj = TnefPropertyTag.AttachDataObj;
ComStorage comStorage = null;
ComStorage comStorage2 = null;
string storageName = Util.PropertyStreamName(attachDataObj);
try
{
cacheStream.Flush();
cacheStream.Position = 0L;
comStorage = ComStorage.OpenStorageOnStream(cacheStream, ComStorage.OpenMode.Read);
comStorage2 = this.subStorage.CreateStorage(storageName, ComStorage.OpenMode.CreateWrite);
comStorage2.StorageClass = Util.ClassIdFileAttachment;
ComStorage.CopyStorageContent(comStorage, comStorage2);
comStorage2.Flush();
MsgStoragePropertyData.WriteObject(this.propertiesWriter, attachDataObj, MsgStoragePropertyData.ObjectType.Storage);
}
catch (IOException exc)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWriteOle, MsgStorageStrings.CorruptData, exc));
}
catch (COMException exc2)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWriteOle, MsgStorageStrings.CorruptData, exc2));
}
finally
{
if (comStorage2 != null)
{
comStorage2.Dispose();
}
if (comStorage != null)
{
comStorage.Dispose();
}
if (cacheStream != null)
{
cacheStream.Dispose();
}
}
});
return(msgStorageWriteStream);
}
internal Stream OpenPropertyStream(TnefPropertyTag propertyTag)
{
if (this.subStorageType == MsgSubStorageType.Recipient)
{
throw new InvalidOperationException(MsgStorageStrings.RecipientPropertiesNotStreamable);
}
MsgStoragePropertyTypeRule msgStoragePropertyTypeRule;
MsgStorageRulesTable.TryFindRule(propertyTag, out msgStoragePropertyTypeRule);
if (!msgStoragePropertyTypeRule.CanOpenStream)
{
throw new InvalidOperationException(MsgStorageStrings.NonStreamableProperty);
}
Stream stream3 = null;
Stream stream2 = null;
try
{
int addStringTerminators = 0;
if (propertyTag.TnefType == TnefPropertyType.Unicode)
{
addStringTerminators = 2;
}
else if (propertyTag.TnefType == TnefPropertyType.String8)
{
addStringTerminators = 1;
}
string streamName = Util.PropertyStreamName(propertyTag);
stream3 = this.subStorage.CreateStream(streamName, ComStorage.OpenMode.CreateWrite);
MsgStorageWriteStream msgStorageWriteStream = new MsgStorageWriteStream(stream3, addStringTerminators);
stream3 = msgStorageWriteStream;
stream3 = new BufferedStream(msgStorageWriteStream, 32768);
msgStorageWriteStream.AddOnCloseNotifier(delegate(MsgStorageWriteStream stream, Exception onCloseException)
{
if (onCloseException != null)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWrite, MsgStorageStrings.ComExceptionThrown, onCloseException));
return;
}
try
{
MsgStoragePropertyData.WriteStream(this.propertiesWriter, propertyTag, (int)stream.Length);
}
catch (IOException exc)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWriteOle, MsgStorageStrings.CorruptData, exc));
}
catch (COMException exc2)
{
this.owner.SetFailure(new MsgStorageException(MsgStorageErrorCode.FailedWriteOle, MsgStorageStrings.CorruptData, exc2));
}
});
stream2 = stream3;
}
finally
{
if (stream2 == null && stream3 != null)
{
stream3.Dispose();
}
}
return(stream2);
}