private bool InitialiserMethodForMsgFile()
{
if (String.IsNullOrEmpty(m_fileData.Filename))
{
return IsOutlookMSGType(m_fileData.BinaryFileData);
}
// Although the InitialiserMethod attribute is used to call this handler specifically for .msg files,
// it is also called for unknown file types so therefore don't assume that the file is a .msg
// ...however! just because it has no extension it doesn't mean it isn't a valud msg file, for embedded msg objects we remove the .msg extension,
// so for these perform a low level filetype check.
string extension = Path.GetExtension(m_fileData.Filename);
// Simple extension check (if extension present)
if (!string.IsNullOrEmpty(extension) && String.Compare(extension, ".msg", true) != 0)
{
return false;
}
// Full check for files with no extension
if (string.IsNullOrEmpty(extension) && !IsOutlookMSGType(m_fileData.BinaryFileData))
{
return false;
}
m_fileData.FileType = FileType.Email;
m_impl = new EmailContainerImpl(m_fileData);
return true;
}
private bool InitialiserMethodForEmailFile()
{
string fileHeader = "[A04C0FB0-AFE4-4ffd-B470-6824AEFA6ED9]";
string subject = "[08335717-0310-4700-A063-3AA8EA2BD752]";
string body = "[8FBD1F28-8EFD-4af7-A4F7-1DF6A4AA9996]";
string attachments = "[E2AD1FFA-2567-4e7c-A73F-7C0828DB6765]";
string header = m_fileData.BinaryFileData.AsString(80, Encoding.Unicode);
if ((header.IndexOf(fileHeader) != -1) ||
(header.IndexOf(subject) != -1) ||
(header.IndexOf(body) != -1) ||
(header.IndexOf(attachments) != -1))
{
m_impl = new EmailContainerImpl(m_fileData);
return true;
}
return false;
}