CssController.php 3.5 KB

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  1. <?php
  2. declare(strict_types=1);
  3. /**
  4. * @copyright Copyright (c) 2016, John Molakvoæ (skjnldsv@protonmail.com)
  5. *
  6. * @author Christoph Wurst <christoph@winzerhof-wurst.at>
  7. * @author Joas Schilling <coding@schilljs.com>
  8. * @author John Molakvoæ <skjnldsv@protonmail.com>
  9. * @author Morris Jobke <hey@morrisjobke.de>
  10. * @author Roeland Jago Douma <roeland@famdouma.nl>
  11. * @author Thomas Citharel <nextcloud@tcit.fr>
  12. *
  13. * @license GNU AGPL version 3 or any later version
  14. *
  15. * This program is free software: you can redistribute it and/or modify
  16. * it under the terms of the GNU Affero General Public License as
  17. * published by the Free Software Foundation, either version 3 of the
  18. * License, or (at your option) any later version.
  19. *
  20. * This program is distributed in the hope that it will be useful,
  21. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  23. * GNU Affero General Public License for more details.
  24. *
  25. * You should have received a copy of the GNU Affero General Public License
  26. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  27. *
  28. */
  29. namespace OC\Core\Controller;
  30. use OC\Files\AppData\Factory;
  31. use OCP\AppFramework\Controller;
  32. use OCP\AppFramework\Http;
  33. use OCP\AppFramework\Http\FileDisplayResponse;
  34. use OCP\AppFramework\Http\NotFoundResponse;
  35. use OCP\AppFramework\Http\Response;
  36. use OCP\AppFramework\Utility\ITimeFactory;
  37. use OCP\Files\IAppData;
  38. use OCP\Files\NotFoundException;
  39. use OCP\Files\SimpleFS\ISimpleFile;
  40. use OCP\Files\SimpleFS\ISimpleFolder;
  41. use OCP\IRequest;
  42. class CssController extends Controller {
  43. protected IAppData $appData;
  44. protected ITimeFactory $timeFactory;
  45. public function __construct(string $appName,
  46. IRequest $request,
  47. Factory $appDataFactory,
  48. ITimeFactory $timeFactory) {
  49. parent::__construct($appName, $request);
  50. $this->appData = $appDataFactory->get('css');
  51. $this->timeFactory = $timeFactory;
  52. }
  53. /**
  54. * @PublicPage
  55. * @NoCSRFRequired
  56. * @NoSameSiteCookieRequired
  57. *
  58. * @param string $fileName css filename with extension
  59. * @param string $appName css folder name
  60. * @return FileDisplayResponse|NotFoundResponse
  61. */
  62. public function getCss(string $fileName, string $appName): Response {
  63. try {
  64. $folder = $this->appData->getFolder($appName);
  65. $gzip = false;
  66. $file = $this->getFile($folder, $fileName, $gzip);
  67. } catch (NotFoundException $e) {
  68. return new NotFoundResponse();
  69. }
  70. $response = new FileDisplayResponse($file, Http::STATUS_OK, ['Content-Type' => 'text/css']);
  71. if ($gzip) {
  72. $response->addHeader('Content-Encoding', 'gzip');
  73. }
  74. $ttl = 31536000;
  75. $response->addHeader('Cache-Control', 'max-age='.$ttl.', immutable');
  76. $expires = new \DateTime();
  77. $expires->setTimestamp($this->timeFactory->getTime());
  78. $expires->add(new \DateInterval('PT'.$ttl.'S'));
  79. $response->addHeader('Expires', $expires->format(\DateTime::RFC1123));
  80. $response->addHeader('Pragma', 'cache');
  81. return $response;
  82. }
  83. /**
  84. * @param ISimpleFolder $folder
  85. * @param string $fileName
  86. * @param bool $gzip is set to true if we use the gzip file
  87. * @return ISimpleFile
  88. * @throws NotFoundException
  89. */
  90. private function getFile(ISimpleFolder $folder, string $fileName, bool &$gzip): ISimpleFile {
  91. $encoding = $this->request->getHeader('Accept-Encoding');
  92. if (strpos($encoding, 'gzip') !== false) {
  93. try {
  94. $gzip = true;
  95. return $folder->getFile($fileName . '.gzip'); # Safari doesn't like .gz
  96. } catch (NotFoundException $e) {
  97. // continue
  98. }
  99. }
  100. $gzip = false;
  101. return $folder->getFile($fileName);
  102. }
  103. }