setFetchAttachment(true) doesn't do anything if setFetchBody(false)

[SDCRoman]

I am fetchting the mails of a mailbox, which works great.
I need to display an information whether mails have an attachment.

For this I was using this code, which WORKED:

$aMessage = $selectedFolder->messages()->setFetchFlags(true)->setFetchAttachment(true)->setFetchBody(true)->leaveUnread()->limit(40, $highest_page)->get();

The Problem is the load times were bad. To fix this I set setFetchBody to false, which greatly improved the load time. I dont need the body in the overview anyway:

$aMessage = $selectedFolder->messages()->setFetchFlags(true)->setFetchAttachment(true)->setFetchBody(false)->leaveUnread()->limit(40, $highest_page)->get();

Now even with setFetchAttachment(true) the attachment information is lost.
$oMessage->hasAttachments() always returns false.

If I switch back setFetchBody to true it works.

setFetchAttachment does not seem to do anything.

What am I doing wrong?

[SDCRoman]

I dont fully understand why, but if I include $oMessage->parseBody() into my response (eventhough I dont use it), then hasAttachments() returns the correct value. Ofcourse while setFetchBody(false).

Case one: The relevant line was commented out. In this case hasAttachments() was always false. The attachment information is not there.

//$result[$message_id]['raw'] = $oMessage->parseBody();
$result[$message_id]['hasAttachments'] = $oMessage->hasAttachments();

Case two: The relevant line is present. In this case hasAttachments() returns the correct value.

$result[$message_id]['raw'] = $oMessage->parseBody();
$result[$message_id]['hasAttachments'] = $oMessage->hasAttachments();

Well it seems my issue is solved, but I dont fully understand why. Just in case here is the whole code, which I use to loop through all messages in a mailbox and build my respose:

// Get all messages of mailbox
if ($data->type == "initial") {
    $highest_page = 1;
} else {
    $highest_page = $data->page;
}

$result = array(); 

if ($data->search_term == "") {
    $aMessage = $selectedFolder->messages()->setFetchFlags(true)->setFetchBody(false)->setFetchAttachment(true)->leaveUnread()
    ->limit(40, $highest_page)->get();
} else {         
    $aMessage = $selectedFolder->messages()->text($data->search_term)->setFetchFlags(true)->setFetchBody(false)->setFetchAttachment(true)->leaveUnread()
    ->limit(40, $highest_page)->get();                    
}

foreach($aMessage as $oMessage) {
        
    if (strpos(strtolower($oMessage->getMessageId()), "?utf-8?")) {
        $message_id = mb_decode_mimeheader($oMessage->getMessageId());
    } else {
        $message_id = $oMessage->getMessageId();
    }

    // NOTE: God knows why, but I need to INCLUDE this in the response if setFetchBody(false), otherwise hasAttachments is always false.
    $result[$message_id]['raw'] = $oMessage->parseBody();

    $result[$message_id]['hasAttachments'] = $oMessage->hasAttachments();

    //$result[$oMessage->getMessageId()]['headerInfo'] = $oMessage->getHeaderInfo();
    $result[$message_id]['MailDate'] = $oMessage->getDate();

    $result[$message_id]['MailDateTimestamp'] = $oMessage->getDate()->timestamp;

    $result[$message_id]['uID'] = $oMessage->getUid();

    $result[$message_id]['Seen'] = $oMessage->getFlags()['seen'];
    
    if (strpos(strtolower($oMessage->getFrom()[0]->mail), "?utf-8?")) {
        $result[$message_id]['fromMail'] = mb_decode_mimeheader($oMessage->getFrom()[0]->mail);
    } else {
        $result[$message_id]['fromMail'] = $oMessage->getFrom()[0]->mail;
    }

    if ($oMessage->getTo()) {
        if (strpos(strtolower($oMessage->getTo()[0]->mail), "?utf-8?")) {
            $result[$message_id]['toMail'] = mb_decode_mimeheader($oMessage->getTo()[0]->mail);
        } else {
            $result[$message_id]['toMail'] = $oMessage->getTo()[0]->mail;
        }
    } else {
        $result[$message_id]['toMail'] = "Unknown";
    }      
    
    if (strpos(strtolower($oMessage->getSubject()), "?utf-8?")) {
        $result[$message_id]['subject'] = mb_decode_mimeheader($oMessage->getSubject());
    } else {
        $result[$message_id]['subject'] = $oMessage->getSubject(); 
    }

    // Leave uncommented, because if attachments are retrieved they cannot be parsed to JSON:
    // https://github.com/Webklex/laravel-imap/issues/63
    //$result[$message_id]['all'] = $oMessage;
    $result[$message_id]['getStructure'] = $oMessage->getStructure();

}

[Webklex]

Hi @SDCRoman ,
in order to fetch the attachmenets you have to fetch the body first.
If you take a look at a raw message you'll notice that the attachments are part of the body.

Kind Regards

[SDCRoman]

But I am not fetching the body in the working example. In theory it should not work, but it does.

I dont fully understand why, but if I include $oMessage->parseBody() into my response (eventhough I dont use it), then hasAttachments() returns the correct value. Ofcourse while setFetchBody(false)

Well. I ditched the hasAttachments() check because it does not work for me. I must use setFetchBody(false) while I fetch the messages, because this tremendously improves performance (for me from 30 sec+ timeout to 4 sec). But with setFetchBody(false) the attachment information was lost (hasAttachments() always returned false). I had to include $oMessage->parseBody() into my response (AJAX), but now I encountered the next error for some mails: Malformed UTF-8 characters. This error appears if I include the parsed body into my response, because for AJAX attachment contents cannot be utf8 encoded.

I understand now that the attachment information is in the body. I still dont understand why parseBody() returns the attachment information if setFetchBody(false). I feel like something is weird here, but maybe I just dont get it.

I found a better way to check for attachments. I dont include the whole parsed body into the response. I check in the server whether the attachment array in the parsed body has a greater length then 0. So far everything seems to work for me:

$hasAttachments = false;
if (count($oMessage->parseBody()->attachments) > 0) {
    $hasAttachments = true;
}

$result[$message_id]['hasAttachments'] = $hasAttachments;

[Webklex]

Please update to v2.0.0 :)