Taeluf.com

Mime.php

<?php

namespace ROF;

/**
 * For delivering files based upon their mimetype. Requires "ralouphie/mimey": "2.1.*"
 * 
 */
class Mime {
    
    
    static public function deliverFile($filePath){
        $path = $filePath; //copy-pasted code. easier to just reassign the variable
        if (!is_file($filePath)){
            throw new \Exception("File '{$filePath}' does not exist. Error in \ROF\Mime::deliverFile(...)");
        }
      
      $extension = pathinfo($path,PATHINFO_EXTENSION);
      $mimey = new \Mimey\MimeTypes;
      $mime_type = $mimey->getMimeType($extension);

      $headers = apache_request_headers();
      $fn = $path;
      // Checking if the client is validating his cache and if it is current.
      $mtime = filemtime($fn);
      if (isset($headers['If-Modified-Since']) && (strtotime($headers['If-Modified-Since']) == $mtime) &&$mtime !==FALSE) {
          // Client's cache IS current, so we just respond '304 Not Modified'.
          header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($fn)).' GMT', true, 304);
      } else {
          // Image not cached or cache outdated, we respond '200 OK' and output the image.
          header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($fn)).' GMT', true, 200);
          //header('Content-Length: '.filesize($fn));
          header('Content-type: '.$mime_type);
          header('Cache-Control: max-age='.(60*60*24*30));
          readfile($fn);
      }
        
    }
    static public function setHeaders($filePath,$asExt=null){
        $extension = $asExt ?? pathinfo($path,PATHINFO_EXTENSION);
        $path = $filePath; //copy-pasted code. easier to just reassign the variable
        
        $mimey = new \Mimey\MimeTypes;
        $mime_type = $mimey->getMimeType($extension);

        $headers = apache_request_headers();
        $fn = $path;
        // Checking if the client is validating his cache and if it is current.
        $mtime = filemtime($fn);
        if (isset($headers['If-Modified-Since']) && (strtotime($headers['If-Modified-Since']) == $mtime) &&$mtime !==FALSE) {
            // Client's cache IS current, so we just respond '304 Not Modified'.
            header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($fn)).' GMT', true, 304);
        } else {
            // Image not cached or cache outdated, we respond '200 OK' and output the image.
            header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($fn)).' GMT', true, 200);
            //header('Content-Length: '.filesize($fn));
            header('Content-type: '.$mime_type);
            header('Cache-Control: max-age='.(60*60*24*30));
            //    readfile($fn);
        }
    }

    static public function mimeFromExt($extension){
        $mimey = new \Mimey\MimeTypes;
        $mime_type = $mimey->getMimeType($extension);
        return $mime_type;
    }
    static public function getHeaderForExt($extension){
        $mime_type = static::mimeFromExt($extension);
        return 'Content-Type: '.$mime_type;
    }
}



?>