Swift

Get the Total Size of an IMAP Message

Demonstrates the Chilkat Imap.GetMailSize method, which returns the complete server-reported size of a message in bytes, including attachment data. The only argument is the Email. This example fetches only the headers and prints the full message size.

Background: The server reports each message's total size, so this value is available even when only the headers were downloaded. That lets a client show a size column in a message list, sort by size, or warn the user before downloading an unusually large message — all without fetching the full body first.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the Imap.GetMailSize method, which returns the complete server-reported size
    //  of a message in bytes, including attachments.  The only argument is the Email.

    let imap = CkoImap()!

    imap.ssl = true
    imap.port = 993

    success = imap.connect(hostname: "imap.example.com")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    success = imap.login(login: "user@example.com", password: "myPassword")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    success = imap.selectMailbox(mailbox: "Inbox")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
    //  metadata describing the attachments is present, so the attachment info methods still work.
    var headersOnly: Bool = true
    var useUid: Bool = false
    var seqNum: Int = 1
    let email = CkoEmail()!
    success = imap.fetchEmail(headerOnly: headersOnly, msgId: seqNum, bUid: useUid, email: email)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    var sizeBytes: Int = imap.getMailSize(email: email).intValue
    print("Total message size: \(sizeBytes) bytes")

    success = imap.disconnect()
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }


}