CODEWITHSUNDEEP
iosobjective-cemailmailcore2
Andrew
Andrew

Reputation: 7883

MailCore2 - Fetch message content without downloading images or attachments?

I want to provide a preview of a user's messages, but I don't wish to download attachments just in order to do that.

The information I need is:

By calling the method fetchMessagesByNumberOperationWithFolder: with request kind MCOIMAPMessagesRequestKindHeaders, I get the date and subject, but it's very slow to return if any of the messages have attachments. By calling it with request kind MCOIMAPMessagesRequestKindUid, it returns very quickly, with just the Uid (and the current date, as a placeholder). From there, I still need to get the subject, the date and the sender.

Now I'm still trying to get this information, while avoiding downloading message attachments.

Calling fetchParsedMessageOperationWithFolder: or fetchMessageOperationWithFolder: both download the message with attachments, and are thus very slow to return.

Because fetchMessageOperationWithFolder: completes with a NSData object, checking the size of the given object reveals it to be the size of a regular message, plus its' attachment.

What can I do to get the information I need, without downloading any attachments?

EDIT: Calling requiredPartsForRendering could give me the content of the email, but in order to retrieve the Date and sender information, I'd still have to have a request kind of MCOIMAPMessagesRequestKindHeaders, which would download the attachment.

So to clarify:

I want to get the following information from an IMAP email, without downloading the email attachments:

Upvotes: 3

Views: 1672

Answers (1)

Dinh Viêt Hoà
Dinh Viêt Hoà

Reputation: 478

The following methods should be helpful to you:

-[MCOAbstractMessage requiredPartsForRendering] will return the message parts that you needs to fetch to be able to show the text content of the message.

-[MCOIMAPSession fetchMessageAttachmentOperationWithFolder:uid:partID:encoding:] will help you fetch each of those parts.

-[MCOIMAPMessage htmlRenderingWithFolder:delegate:] will return the rendered content as HTML (or nil if you don't provide all the content of the parts through the delegate.

-[NSString mco_flattenHTML] is also useful if you'd like to convert the HTML to a unformatted string.

Upvotes: 3

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