leavegroup.php 4.9 KB

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  1. <?php
  2. /**
  3. * StatusNet, the distributed open-source microblogging tool
  4. *
  5. * Leave a group
  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 Group
  23. * @package StatusNet
  24. * @author Evan Prodromou <evan@status.net>
  25. * @copyright 2008-2009 StatusNet, Inc.
  26. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  27. * @link http://status.net/
  28. */
  29. if (!defined('GNUSOCIAL')) { exit(1); }
  30. /**
  31. * Leave a group
  32. *
  33. * This is the action for leaving a group. It works more or less like the subscribe action
  34. * for users.
  35. *
  36. * @category Group
  37. * @package StatusNet
  38. * @author Evan Prodromou <evan@status.net>
  39. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  40. * @link http://status.net/
  41. */
  42. class LeavegroupAction extends Action
  43. {
  44. var $group = null;
  45. /**
  46. * Prepare to run
  47. */
  48. protected function prepare(array $args=array())
  49. {
  50. parent::prepare($args);
  51. if (!common_logged_in()) {
  52. // TRANS: Client error displayed when trying to leave a group while not logged in.
  53. $this->clientError(_('You must be logged in to leave a group.'));
  54. }
  55. $nickname_arg = $this->trimmed('nickname');
  56. $id = intval($this->arg('id'));
  57. if ($id) {
  58. $this->group = User_group::getKV('id', $id);
  59. } else if ($nickname_arg) {
  60. $nickname = common_canonical_nickname($nickname_arg);
  61. // Permanent redirect on non-canonical nickname
  62. if ($nickname_arg != $nickname) {
  63. $args = array('nickname' => $nickname);
  64. common_redirect(common_local_url('leavegroup', $args), 301);
  65. }
  66. $local = Local_group::getKV('nickname', $nickname);
  67. if (!$local) {
  68. // TRANS: Client error displayed when trying to leave a non-local group.
  69. $this->clientError(_('No such group.'), 404);
  70. }
  71. $this->group = User_group::getKV('id', $local->group_id);
  72. } else {
  73. // TRANS: Client error displayed when trying to leave a group without providing a group name or group ID.
  74. $this->clientError(_('No nickname or ID.'), 404);
  75. }
  76. if (!$this->group) {
  77. // TRANS: Client error displayed when trying to leave a non-existing group.
  78. $this->clientError(_('No such group.'), 404);
  79. }
  80. if (!$this->scoped->isMember($this->group)) {
  81. // TRANS: Client error displayed when trying to join a group while already a member.
  82. $this->clientError(_('You are not a member of that group.'), 403);
  83. }
  84. return true;
  85. }
  86. /**
  87. * Handle the request
  88. *
  89. * On POST, add the current user to the group
  90. *
  91. * @return void
  92. */
  93. protected function handle()
  94. {
  95. parent::handle();
  96. try {
  97. $this->scoped->leaveGroup($this->group);
  98. } catch (Exception $e) {
  99. common_log(LOG_ERR, "Error when {$this->scoped->nickname} tried to leave {$this->group->nickname}: " . $e->getMessage());
  100. // TRANS: Server error displayed when leaving a group failed in the database.
  101. // TRANS: %1$s is the leaving user's nickname, $2$s is the group nickname for which the leave failed.
  102. $this->serverError(sprintf(_('Could not remove user %1$s from group %2$s.'),
  103. $this->scoped->nickname, $this->group->nickname));
  104. return;
  105. }
  106. if ($this->boolean('ajax')) {
  107. $this->startHTML('text/xml;charset=utf-8');
  108. $this->elementStart('head');
  109. // TRANS: Title for leave group page after leaving.
  110. $this->element('title', null, sprintf(_m('TITLE','%1$s left group %2$s'),
  111. $this->scoped->nickname,
  112. $this->group->nickname));
  113. $this->elementEnd('head');
  114. $this->elementStart('body');
  115. $jf = new JoinForm($this, $this->group);
  116. $jf->show();
  117. $this->elementEnd('body');
  118. $this->endHTML();
  119. } else {
  120. common_redirect(common_local_url('groupmembers', array('nickname' => $this->group->nickname)), 303);
  121. }
  122. }
  123. }