How to resize image on download?

[mthiebou]

With a post request users can download the image they bought.

Depending on the license the image needs to be resized.

This the controller.

<?php

return function ($kirby) {



    $user           = $kirby->user();
    $download       = get('download');
    $file           = $user->file($download);
    $filepath       = $file->root();
    $name           = $file->filename();



    if(!$user) go('login');

    if($kirby->request()->is('POST') and $download and $file) {


        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: public");
        header("Content-Description: File Transfer");
        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=\"" . $name . "\"");
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: " . filesize($filepath));
        ob_end_flush();
        readfile($filepath);

    }

	return compact('user');
};

[texnixe]

Maybe you can test this solution:

$file->download() loads 0 byte - Empty File

there is one… i replaced $file->download() with the following, and this seems to work fine. // from here https://stackoverflow.com/questions/7263923/how-to-force-file-download-with-php header('Content-Type: application/octet-stream'); header("Content-Transfer-Encoding: Binary"); header("Content-disposition: attachment; filename=\"" . basename($file->url()) . "\""); readfile($file->url()); // do th…

[mthiebou]

Found the solution:

HTTP Headers for ZIP File Downloads | Perishable Press

<?php

return function ($kirby) {



    $user           = $kirby->user();
    if(!$user) go('login');
    $download       = get('download');
    $file           = $user->file($download);
    $filepath       = $file->root();
    $name           = $file->filename();



    

    if($kirby->request()->is('POST') and $download and $file) {

        if ($file->license() == 'lowres') {

            kirby()->thumb($file->root(), $file->root(), [
                'height' => 1500,
                'width' => 1500,
                'quality' => 80
            ]);

        }
        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: public");
        header("Content-Description: File Transfer");
        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=\"" . $name . "\"");
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: " . filesize($filepath));
        ob_end_flush();
        @readfile($filepath);

    }

	return compact('user');
};