private MessageEntitySummary HandleMimeEntity(MimeEntity entity)
{
int index = 0;
return(MimeEntityVisitor.VisitWithResults <MessageEntitySummary>(entity, (e, p) =>
{
MessageEntitySummary result = new MessageEntitySummary()
{
MessageId = Id,
Id = index.ToString(),
ContentId = e.ContentId,
Name = e.ContentId + " - " + e.ContentType.MimeType,
Headers = e.Headers.Select(h => new Header {
Name = h.Field, Value = h.Value
}).ToList(),
ChildParts = new List <MessageEntitySummary>(),
Attachments = new List <AttachmentSummary>(),
Size = e.ToString().Length,
MimeEntity = e
};
if (p != null)
{
p.ChildParts.Add(result);
if (e.IsAttachment)
{
p.Attachments.Add(new AttachmentSummary()
{
Id = result.Id,
ContentId = result.ContentId,
FileName = string.IsNullOrEmpty(e.ContentType?.Name)
? e.ContentDisposition?.FileName
: e.ContentType.Name,
Url = $"/api/messages/{Id}/part/{result.Id}/content"
});
}
}
index++;
return result;
}));
}
private MessageEntitySummary HandleMimeEntity(MimeEntity entity)
{
int index = 0;
return(MimeEntityVisitor.Visit <MessageEntitySummary>(entity, null, (e, p) =>
{
string cid = e.ContentId ?? index.ToString();
MessageEntitySummary result = new MessageEntitySummary()
{
MessageId = Id,
ContentId = cid,
Name = e.ContentId + " - " + e.ContentType.MimeType,
Headers = e.Headers.Select(h => new Header {
Name = h.Field, Value = h.Value
}).ToList(),
ChildParts = new List <MessageEntitySummary>(),
Attachments = new List <AttachmentSummary>()
};
if (p != null)
{
p.ChildParts.Add(result);
if (e.IsAttachment)
{
p.Attachments.Add(new AttachmentSummary()
{
ContentId = result.ContentId,
FileName = e.ContentDisposition?.FileName,
Url = $"/api/messages/{Id}/part/{result.ContentId}/content"
});
}
}
index++;
return result;
}));
}
private static MimeEntity GetPart(DbModel.Message message, string cid)
{
MimeEntity result = null;
using (MemoryStream stream = new MemoryStream(message.Data))
{
MimeMessage mime = MimeMessage.Load(stream);
int index = 0;
MimeEntityVisitor.Visit <DBNull>(mime.Body, null, (e, p) =>
{
if (((e as MimePart)?.ContentId ?? (index++.ToString())) == cid)
{
result = e;
}
return(DBNull.Value);
});
}
return(result);
}
private MessageEntitySummary HandleMimeEntity(MimeEntity entity)
{
int index = 0;
return(MimeEntityVisitor.VisitWithResults <MessageEntitySummary>(entity, (e, p) =>
{
string fileName = PunyCodeReplacer.DecodePunycode(!string.IsNullOrEmpty(e.ContentDisposition?.FileName)
? e.ContentDisposition?.FileName
: e.ContentType?.Name);
MessageEntitySummary result = new MessageEntitySummary()
{
MessageId = Id,
Id = index.ToString(),
ContentId = e.ContentId,
Name = (fileName ?? e.ContentId ?? index.ToString()) + " - " + e.ContentType.MimeType,
Headers = e.Headers.Select(h => new Header {
Name = h.Field, Value = PunyCodeReplacer.DecodePunycode(h.Value)
}).ToList(),
ChildParts = new List <MessageEntitySummary>(),
Attachments = new List <AttachmentSummary>(),
Warnings = new List <MessageWarning>(),
Size = e.ToString().Length,
IsAttachment = (e.ContentDisposition?.Disposition != "inline" && !string.IsNullOrEmpty(fileName)) || e.ContentDisposition?.Disposition == "attachment",
MimeEntity = e
};
if (p != null)
{
p.ChildParts.Add(result);
if (result.IsAttachment)
{
if (e.ContentDisposition?.Disposition != "attachment")
{
result.Warnings.Add(new MessageWarning {
Details = $"Attachment '{fileName}' should have \"Content-Disposition: attachment\" header."
});
}
if (string.IsNullOrEmpty(fileName))
{
result.Warnings.Add(new MessageWarning {
Details = $"Attachment with content ID '{e.ContentId}' should have filename specified in either 'Content-Type' or 'Content-Disposition' header."
});
}
p.Attachments.Add(new AttachmentSummary()
{
Id = result.Id,
ContentId = result.ContentId,
FileName = fileName,
Url = $"api/messages/{Id}/part/{result.Id}/content"
});
}
}
index++;
return result;
}));
}