class.ilMediaSvgSanitizer.php

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<?php

use enshrined\svgSanitize\Sanitizer;

class ilMediaSvgSanitizer
{
    public static function sanitizeFile(
        string $a_file
    ): void {
        $sanitizer = new Sanitizer();
        $dirtySVG = file_get_contents($a_file);
        $cleanSVG = $sanitizer->sanitize($dirtySVG);
        file_put_contents($a_file, $cleanSVG);
    }

    public static function sanitizeDir(
        string $a_path
    ): void {
        $path = realpath($a_path);

        $objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::SELF_FIRST);
        foreach ($objects as $name => $object) {
            if (strtolower(pathinfo($name, PATHINFO_EXTENSION)) == "svg") {
                self::sanitizeFile($name);
            }
        }
    }
}