private Attachment GetAttachment(Redemption.Attachment redemptionAttachment, int bodyFormat)
{
string temp = LocalFileManager.GetLocalCopyOfFileTarget(redemptionAttachment.DisplayName);
DeleteFile(temp);
redemptionAttachment.SaveAsFile(temp);
_unpackedTempCopies.Add(temp);
// Attachment Content Type cannot be determined, whilst the Index will be set at a
// higher level -> Flatten call
// [09/07/09] DE9310 DZ: Prefer using FileName instead of DisplayName due for
// this defect.
// [01/09/09] DE9621 DZ: Redemption.Attachment.FileName/DisplayName couldn't correctly retrieve
// the Unicode names when running on Office2003 with "Cached Exchanged Mode" turned on. Therefore
// try raw attribute first.
// RightClick send .msg, PR_ATTACH_LONG_FILENAME_W/PR_DISPLAY_NAME_W donot present.
// Drag to attach .msg and send, PR_ATTACH_LONG_FILENAME_W does not present.
string attname = redemptionAttachment.get_Fields(MapiDefines.PR_ATTACH_LONG_FILENAME_W) as string;
if (string.IsNullOrEmpty(attname))
{
attname = redemptionAttachment.get_Fields(MapiDefines.PR_DISPLAY_NAME_W) as string;
if (string.IsNullOrEmpty(attname))
{
// Redemption.Attachment.FileName should never return null/contain invalid file name characters
// but can incorrectly decode Unicode characters, resulting underscores '____'.
attname = redemptionAttachment.FileName;
}
}
// Sanitize required due to filename retrieved from "get_fields()" may contain "????" for incorrectly
// decoded Unicode character.
attname = LocalCopyOfFileManager.GetValidFileName_excl_invalid_chars(attname);
var attachment = new Attachment(new FCS.Lite.Interface.File(temp, attname),
string.Empty, Guid.NewGuid().ToString(), string.Empty, false)
{
Properties = new[] { new CustomProperty(PropertyNames.LocalFileName, temp) }
};
using (RWSAttachment rWSAttachment = new RWSAttachment(redemptionAttachment))
{
attachment.IsSignature = MapiSignatureInspector.IsSignature(rWSAttachment, (OlBodyFormat)bodyFormat);
}
return attachment;
}
private string[] RemoveAllAttachmentsFromMSGPreserveSignature(Redemption.SafeMailItem msgItem, OlBodyFormat format)
{
var recordKeys = new List<string>();
Redemption.Attachments attachments = msgItem.Attachments;
using (new ComRelease(attachments))
{
for (int i = attachments.Count; i > 0; i--)
{
Redemption.Attachment attachment = attachments.Item(i);
using (var rwsAttachment = new RWSAttachment(attachment))
{
if (!MapiSignatureInspector.IsSignature(rwsAttachment, format))
{
try
{
object data = attachment.get_Fields(MapiDefines.PR_RECORD_KEY);
if (data != null)
{
string recordkey = GetStringFromBytes(data);
recordKeys.Add(recordkey);
}
}
catch(Exception ex)
{
Interop.Logging.Logger.LogError(ex);
}
attachment.Delete();
}
}
}
}
return recordKeys.ToArray();
}