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   1  <?php
   2  
   3  /**
   4   * Delivers CSS and JS resources to the browser. This controller handles all
   5   * `/res/` requests, and manages caching, package construction, and resource
   6   * preprocessing.
   7   */
   8  final class CelerityPhabricatorResourceController
   9    extends CelerityResourceController {
  10  
  11    private $path;
  12    private $hash;
  13    private $library;
  14  
  15    public function getCelerityResourceMap() {
  16      return CelerityResourceMap::getNamedInstance($this->library);
  17    }
  18  
  19    public function willProcessRequest(array $data) {
  20      $this->path = $data['path'];
  21      $this->hash = $data['hash'];
  22      $this->library = $data['library'];
  23    }
  24  
  25    public function processRequest() {
  26      // Check that the resource library exists before trying to serve resources
  27      // from it.
  28      try {
  29        $this->getCelerityResourceMap();
  30      } catch (Exception $ex) {
  31        return new Aphront400Response();
  32      }
  33  
  34      return $this->serveResource($this->path);
  35    }
  36  
  37    protected function buildResourceTransformer() {
  38      $minify_on = PhabricatorEnv::getEnvConfig('celerity.minify');
  39      $developer_on = PhabricatorEnv::getEnvConfig('phabricator.developer-mode');
  40  
  41      $should_minify = ($minify_on && !$developer_on);
  42  
  43      return id(new CelerityResourceTransformer())
  44        ->setMinify($should_minify)
  45        ->setCelerityMap($this->getCelerityResourceMap());
  46    }
  47  
  48  }