CelerityPhabricatorResourceController.php
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	<?php

	/**
	* Delivers CSS and JS resources to the browser. This controller handles all
	* `/res/` requests, and manages caching, package construction, and resource
	* preprocessing.
	*/
	final class CelerityPhabricatorResourceController
	extends CelerityResourceController {

	private $path;
	private $hash;
	private $library;
	private $postprocessorKey;

	public function getCelerityResourceMap() {
	return CelerityResourceMap::getNamedInstance($this->library);
	}

	public function handleRequest(AphrontRequest $request) {
	$this->path = $request->getURIData('path');
	$this->hash = $request->getURIData('hash');
	$this->library = $request->getURIData('library');
	$this->postprocessorKey = $request->getURIData('postprocessor');

	// Check that the resource library exists before trying to serve resources
	// from it.
	try {
	$this->getCelerityResourceMap();
	} catch (Exception $ex) {
	return new Aphront400Response();
	}

	return $this->serveResource(
	array(
	'path' => $this->path,
	'hash' => $this->hash,
	));
	}

	protected function buildResourceTransformer() {
	$minify_on = PhabricatorEnv::getEnvConfig('celerity.minify');
	$developer_on = PhabricatorEnv::getEnvConfig('phabricator.developer-mode');

	$should_minify = ($minify_on && !$developer_on);

	return id(new CelerityResourceTransformer())
	->setMinify($should_minify)
	->setPostprocessorKey($this->postprocessorKey)
	->setCelerityMap($this->getCelerityResourceMap());
	}

	protected function getCacheKey($path) {
	return parent::getCacheKey($path.';'.$this->postprocessorKey);
	}

	}