streams/Code/Daemon/Thumbnail.php

<?php

/** @file */

namespace Code\Daemon;

use Code\Extend\Hook;
    
class Thumbnail
{

    public static function run($argc, $argv)
    {

        if (! ($argc == 2)) {
            return;
        }

        $c = q(
            "select * from attach where hash = '%s' ",
            dbesc($argv[1])
        );

        if (! $c) {
            return;
        }

        $attach = $c[0];

        $preview_style   = intval(get_config('system', 'thumbnail_security', 0));
        $preview_width   = intval(get_config('system', 'thumbnail_width', 300));
        $preview_height  = intval(get_config('system', 'thumbnail_height', 300));

        $p = [
            'attach'         => $attach,
            'preview_style'  => $preview_style,
            'preview_width'  => $preview_width,
            'preview_height' => $preview_height,
            'thumbnail' => null
        ];

        /**
         * @hooks thumbnail
         *  * \e array \b attach
         *  * \e int \b preview_style
         *  * \e int \b preview_width
         *  * \e int \b preview_height
         *  * \e string \b thumbnail
         */

        Hook::call('thumbnail', $p);
        if ($p['thumbnail']) {
            return;
        }

        $default_controller = null;

        $files = glob('Code/Thumbs/*.php');
        if ($files) {
            foreach ($files as $f) {
                $clsname = '\\Code\\Thumbs\\' . ucfirst(basename($f, '.php'));
                if (class_exists($clsname)) {
                    $x = new $clsname();
                    if (method_exists($x, 'Match')) {
                        $matched = $x->Match($attach['filetype']);
                        if ($matched) {
                            $x->Thumb($attach, $preview_style, $preview_width, $preview_height);
                        }
                    }
                    if (method_exists($x, 'MatchDefault')) {
                        $default_matched = $x->MatchDefault(substr($attach['filetype'], 0, strpos($attach['filetype'], '/')));
                        if ($default_matched) {
                            $default_controller = $x;
                        }
                    }
                }
            }
        }
        if (
            ($default_controller)
            && ((! file_exists(dbunescbin($attach['content']) . '.thumb'))
                || (filectime(dbunescbin($attach['content']) . 'thumb') < (time() - 60)))
        ) {
            $default_controller->Thumb($attach, $preview_style, $preview_width, $preview_height);
        }
    }
}