How to Parse Gmails MessageParts in C#

[PhantomWolf]

I know we have a lot of programmer on the board so I am hoping that someone has played with Google's APIs before and might have a suggestion.

I have looked all over the place and keep running into dead ends.

I am trying to use the Google APIs to download gmail into a C# plugin and then place it into a created Mail Object Class that the parent program can understand.

I have gotten to the point of being able to download the Messages and I can get everything except the actual E-Mail body, which is buried deeply in the payload's MessagePart structure.

What I am after is a way to convert the Payload's Parts into Richtext or HTML if possible, or pure text if not.

At the moment I don't need to have any image attachments come through, just the text in the body.

This is the code I'm using...

GmailService gs = new GmailService(new Google.Apis.Services.BaseClientService.Initializer() {   ApplicationName = Constant.clientId, HttpClientInitializer = credential });

UsersResource.MessagesResource messagesResource = gs.Users.Messages;
IList<Message> messages = messagesResource.List(userGmail.Value).Execute().Messages;
foreach (Message message in messages)
{
   String messageID = message.Id;
   ReceivedGmail check = ObjectSpace.RetrieveObjectByKeyProperty<ReceivedGmail>(messageID);

   if (check == null)
   {
       messagesResource.Get(userGmail.Value, messageID).Format = UsersResource.MessagesResource.GetRequest.FormatEnum.Raw;

       Message mail = messagesResource.Get(userGmail.Value, messageID).Execute();
       MessagePart mailbody = mail.Payload;

       ReceivedGmail gmail = new ReceivedGmail() { User = User.CurrentUser, Unread = true, mailID = messageID };

       //Get all the header information from the message (Date, Emails, etc.) and add to gmail object.

       //gmail.body = ?????;

       ObjectSpace.StoreObject<ReceivedGmail>(gmail);
    }
}

Any help on how to get the data I need to add into gmail.body would be greatly appreciated.

 

[PhantomWolf]

Guess no one knows, but I did manage to solve it.

Just had to find the Part with the MimeType of "text/plain" using recursion and then after replacing "+" for "-" and "/" for any "_" in the Body.Data string, decode it with standard Base64.

Easy...