header::download(array(
      'name' => $name ? $name : 'text.txt',
      'size' => static::length($string),
      'mime' => 'text/plain',
    ));
 
    die($string);
 
  }
 
  /**
   * Checks if a string starts with the passed needle
   *
   * @param string $string
   * @param string $needle
   * @return boolean
   */
  public static function startsWith($string, $needle) {
    return $needle === '' || strpos($string, $needle) === 0;
  }
 
  /**
   * Checks if a string ends with the passed needle
   *
   * @param string $string
   * @param string $needle
   * @return boolean
   */
  public static function endsWith($string, $needle) {
    return $needle === '' || static::substr($string, -static::length($needle)) === $needle;
  }
 
  /**
   * Get a character pool with various possible combinations
   *
   * @param  string  $type
   * @param  boolean $array
   * @return string
   */

  
  public function license() {
    $key  = kirby()->option('imageset.license');
    $type = 'trial';
    
    /**
     * Hey there,
     * 
     * if you have digged deep into Kirby’s source code,
     * than you’ve probably stumbled across a similiar
     * message, asking you to be honest when using the
     * software. I ask you the same, if your intention is to
     * use ImageSet. Writing this plugin took a lot of time
     * and it hopefully saves you a lot of headaches.
     *
     * Anyway, have a nice day!
     *
     * Fabian
     */  
    if (str::startsWith($key, 'IMGST1') && str::length($key) === 39) {
      $type = 'ImageSet 1';
    } else {
      $key = null;
    }
    
    return new Obj(array(
      'key'   => $key,
      'type'  => $type,
    ));
  }
  
}
 

  }
}
 
// Register Snippet for ImageSet output. Can be overriden by
// placing a file called `imageset.php` within your snippets
// directory.
$kirby->set('snippet', 'imageset', __DIR__ . DS . 'snippets' . DS . 'imageset.php');
 
// Register image tag, if neither disabled in config nor
// overriden by a user-defined function.
if($kirby->option('imageset.tags.image') !== false && !file_exists($kirby->roots()->tags() . DS . 'image.php')) {
  require_once __DIR__ . DS . 'tags' . DS . 'image.php';
}
 
// Register style consolidator if enabled in options
if($kirby->option('imageset.styles.consolidate')) {
  $kirby->set('component', 'response', __NAMESPACE__ . '\\Component\\StylesConsolidatorResponse');
}
 
if(plugin::instance()->license()->type === 'trial') {
  $kirby->set('widget', 'imageset', __DIR__ . DS . 'widgets' . DS . 'imageset');
}
 

   * Loads a single plugin
   *
   * @param string $name
   * @param string $mode
   * @return mixed
   */
  public function plugin($name, $mode = 'dir') {
 
    if(isset($this->plugins[$name])) return $this->plugins[$name];
 
    if($mode == 'dir') {
      $file = $this->roots->plugins() . DS . $name . DS . $name . '.php';
    } else {
      $file = $this->roots->plugins() . DS . $name . '.php';
    }
 
    // make the kirby variable available in plugin files
    $kirby = $this;
 
    if(file_exists($file)) return $this->plugins[$name] = include_once($file);
 
    return false;
  
  }
 
  /**
   * Load all default extensions
   */
  public function extensions() {
 
    // load all kirby tags and field methods
    include_once(__DIR__ . DS . 'extensions' . DS . 'tags.php');
    include_once(__DIR__ . DS . 'extensions' . DS . 'methods.php');
 
    // install additional kirby tags
    kirbytext::install($this->roots->tags());
 
  }
 
  /**

   *
   * @return array
   */
  public function plugins() {
 
    // check for a cached plugins array
    if(!is_null($this->plugins)) return $this->plugins;
 
    // get the plugins root
    $root = $this->roots->plugins();
 
    // start the plugin registry
    $this->plugins = array();
 
    // check for an existing plugins dir
    if(!is_dir($root)) return $this->plugins;
 
    foreach(array_diff(scandir($root), array('.', '..')) as $file) {
      if(is_dir($root . DS . $file)) {
        $this->plugin($file, 'dir');
      } else if(f::extension($file) == 'php') {
        $this->plugin(f::name($file), 'file');
      }
    }
 
    return $this->plugins;
 
  }
 
  /**
   * Loads a single plugin
   *
   * @param string $name
   * @param string $mode
   * @return mixed
   */
  public function plugin($name, $mode = 'dir') {
 
    if(isset($this->plugins[$name])) return $this->plugins[$name];
 

    // start the error handler
    new ErrorHandling($this);
 
    // force secure connections if enabled
    if($this->option('ssl') and !r::secure()) {
      // rebuild the current url with https
      go(url::build(array('scheme' => 'https')));
    }
 
    // set the timezone for all date functions
    date_default_timezone_set($this->options['timezone']);
 
    // load all extensions
    $this->extensions();
 
    // load all models
    $this->models();
 
    // load all plugins
    $this->plugins();
 
    // start the router
    $this->router = new Router($this->routes());
    $this->route  = $this->router->run($this->path());
 
    // check for a valid route
    if(is_null($this->route)) {
      header::status('500');
      header::type('json');
      die(json_encode(array(
        'status'  => 'error',
        'message' => 'Invalid route or request method'
      )));
    }
 
    // call the router action with all arguments from the pattern
    $response = call($this->route->action(), $this->route->arguments());
 
    // load all language variables
    // this can only be loaded once the router action has been called

<?php
 
define('DS', DIRECTORY_SEPARATOR);
 
// load kirby
require(__DIR__ . DS . 'kirby' . DS . 'bootstrap.php');
 
// check for a custom site.php
if(file_exists(__DIR__ . DS . 'site.php')) {
  require(__DIR__ . DS . 'site.php');
} else {
  $kirby = kirby();
}
 
// render
echo $kirby->launch();