apicheckhub.php 2.9 KB

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  1. <?php
  2. /**
  3. * StatusNet, the distributed open-source microblogging tool
  4. *
  5. * Show a notice's attachment
  6. *
  7. * PHP version 5
  8. *
  9. * LICENCE: This program is free software: you can redistribute it and/or modify
  10. * it under the terms of the GNU Affero General Public License as published by
  11. * the Free Software Foundation, either version 3 of the License, or
  12. * (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU Affero General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU Affero General Public License
  20. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  21. *
  22. * @category API
  23. * @package GNUsocial
  24. * @author Hannes Mannerheim <h@nnesmannerhe.im>
  25. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  26. * @link http://www.gnu.org/software/social/
  27. */
  28. if (!defined('GNUSOCIAL')) { exit(1); }
  29. /**
  30. * Check if a url have a push-hub, i.e. if it is possible to subscribe
  31. *
  32. */
  33. class ApiCheckHubAction extends ApiAuthAction
  34. {
  35. protected $url = null;
  36. /**
  37. * Take arguments for running
  38. *
  39. * @param array $args $_REQUEST args
  40. *
  41. * @return boolean success flag
  42. */
  43. protected function prepare(array $args=array())
  44. {
  45. parent::prepare($args);
  46. if ($this->format !== 'json') {
  47. $this->clientError('This method currently only serves JSON.', 415);
  48. }
  49. $this->url = urldecode($args['url']);
  50. if (empty($this->url)) {
  51. $this->clientError(_('No URL.'), 403);
  52. }
  53. if (!common_valid_http_url($this->url)) {
  54. $this->clientError(_('Invalid URL.'), 403);
  55. }
  56. return true;
  57. }
  58. /**
  59. * Handle the request
  60. *
  61. * @param array $args $_REQUEST data (unused)
  62. *
  63. * @return void
  64. */
  65. protected function handle()
  66. {
  67. parent::handle();
  68. $discover = new FeedDiscovery();
  69. try {
  70. $feeduri = $discover->discoverFromURL($this->url);
  71. if($feeduri) {
  72. $huburi = $discover->getHubLink();
  73. }
  74. } catch (FeedSubNoFeedException $e) {
  75. $this->clientError(_('No feed found'), 403);
  76. } catch (FeedSubBadResponseException $e) {
  77. $this->clientError(_('No hub found'), 403);
  78. }
  79. $hub_status = array();
  80. if ($huburi) {
  81. $hub_status = array('huburi' => $huburi);
  82. }
  83. $this->initDocument('json');
  84. $this->showJsonObjects($hub_status);
  85. $this->endDocument('json');
  86. }
  87. /**
  88. * Return true if read only.
  89. *
  90. * MAY override
  91. *
  92. * @param array $args other arguments
  93. *
  94. * @return boolean is read only action?
  95. */
  96. function isReadOnly($args)
  97. {
  98. return true;
  99. }
  100. }