private IImapMimeProvider GetAttachedItemConverter(ref MimePartInfo part, ref Item item, ref EncodingOptions itemEncodingOptions, List <IDisposable> disposeList)
{
if (part.ContentType != MimePartContentType.ItemAttachment)
{
return(null);
}
IImapMimeProvider imapMimeProvider;
if (part.SmimePart == null)
{
Attachment attachment = item.AttachmentCollection.Open(part.AttachmentId, InternalSchema.ContentConversionProperties);
disposeList.Add(attachment);
ItemAttachment itemAttachment = attachment as ItemAttachment;
if (itemAttachment == null)
{
StorageGlobals.ContextTraceError(ExTraceGlobals.CcOutboundMimeTracer, "ImapItemConverter::GetAttachedItemConverter: attachment is not an item.");
ExAssert.RetailAssert(false, "ImapItemConverter::GetAttachedItemConverter: attachment is not an item.");
return(null);
}
item = ConvertUtils.OpenAttachedItem(itemAttachment);
if (item == null)
{
return(null);
}
disposeList.Add(item);
ItemToMimeConverter itemToMimeConverter = new ItemToMimeConverter(item, this.options, ConverterFlags.IsEmbeddedMessage);
imapMimeProvider = IImapMimeProvider.CreateInstance(itemToMimeConverter);
disposeList.Add(imapMimeProvider);
itemEncodingOptions = itemToMimeConverter.GetItemMimeEncodingOptions(this.options);
if (part.AttachedItemStructure != null)
{
itemToMimeConverter.SetSkeletonAndSmimeDoc(part.AttachedItemStructure.Skeleton, part.AttachedItemStructure.SmimeDocument);
}
}
else
{
imapMimeProvider = IImapMimeProvider.CreateInstance((MimePart)part.SmimePart.FirstChild, part.SmimeDocument);
disposeList.Add(imapMimeProvider);
itemEncodingOptions = this.itemEncodingOptions;
}
if (part.AttachedItemStructure == null)
{
part.AttachedItemStructure = imapMimeProvider.CalculateMimeStructure(Charset.GetCharset(itemEncodingOptions.CharsetName));
}
part = part.AttachedItemStructure;
return(imapMimeProvider);
}
public override MimePartHeaders GetHeaders(uint[] indices)
{
StorageGlobals.ContextTraceInformation(ExTraceGlobals.CcOutboundMimeTracer, "ImapItemConverter::GetHeaders.2");
this.CheckDisposed(null);
MimePartHeaders result;
using (StorageGlobals.SetTraceContext(this.options))
{
using (StorageGlobals.SetTraceContext(this.itemIn))
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Starting item (ImapItemConverter.GetHeaders.2)");
if (indices == null || indices.Length == 0)
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
result = this.GetHeaders();
}
else
{
MimePartInfo mimePartInfo = this.FindMimePart(indices);
if (mimePartInfo != null)
{
if (mimePartInfo.ContentType != MimePartContentType.ItemAttachment)
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
return(null);
}
mimePartInfo = mimePartInfo.AttachedItemStructure;
if (mimePartInfo != null && mimePartInfo.Headers != null && mimePartInfo.Headers.Count != 0)
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
return(mimePartInfo.Headers);
}
}
mimePartInfo = this.GetMimeSkeleton();
List <IDisposable> disposeList = null;
Item item = null;
try
{
EncodingOptions encodingOptions;
if (this.GetSubpartConverter(indices, out mimePartInfo, out item, out encodingOptions, out disposeList) == null)
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
result = null;
}
else
{
IImapMimeProvider attachedItemConverter = this.GetAttachedItemConverter(ref mimePartInfo, ref item, ref encodingOptions, disposeList);
if (attachedItemConverter == null)
{
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
result = null;
}
else
{
using (MimeStreamWriter mimeStreamWriter = new MimeStreamWriter((MimeStreamWriter.Flags) 6, encodingOptions))
{
this.WriteMimePart(attachedItemConverter, mimeStreamWriter, this.options, mimePartInfo, ItemToMimeConverter.MimeFlags.WriteMessageHeaders | ItemToMimeConverter.MimeFlags.SkipContent);
}
StorageGlobals.ContextTracePfd(ExTraceGlobals.CcPFDTracer, "Finishing item (ImapItemConverter.GetHeaders.2)");
result = mimePartInfo.Headers;
}
}
}
finally
{
this.DisposeAll(disposeList);
}
}
}
}
return(result);
}