3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2010, StatusNet, Inc.
6 * Show a single membership as an Activity Streams entry
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Affero General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Affero General Public License for more details.
20 * You should have received a copy of the GNU Affero General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * @author Evan Prodromou <evan@status.net>
26 * @copyright 2010 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
28 * @link http://status.net/
31 if (!defined('STATUSNET')) {
32 // This check helps protect against security problems;
33 // your code file can't be executed directly from the web.
37 require_once INSTALLDIR . '/lib/apiauth.php';
40 * Show (or delete) a single membership event as an ActivityStreams entry
44 * @author Evan Prodromou <evan@status.net>
45 * @copyright 2010 StatusNet, Inc.
46 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
47 * @link http://status.net/
49 class AtompubshowmembershipAction extends ApiAuthAction
51 private $_profile = null;
52 private $_group = null;
53 private $_membership = null;
56 * For initializing members of the class.
58 * @param array $argarray misc. arguments
60 * @return boolean true
62 function prepare($argarray)
64 parent::prepare($argarray);
66 $profileId = $this->trimmed('profile');
68 $this->_profile = Profile::staticGet('id', $profileId);
70 if (empty($this->_profile)) {
71 // TRANS: Client exception.
72 throw new ClientException(_('No such profile.'), 404);
75 $groupId = $this->trimmed('group');
77 $this->_group = User_group::staticGet('id', $groupId);
79 if (empty($this->_group)) {
80 // TRANS: Client exception thrown when referencing a non-existing group.
81 throw new ClientException(_('No such group.'), 404);
84 $kv = array('group_id' => $groupId,
85 'profile_id' => $profileId);
87 $this->_membership = Group_member::pkeyGet($kv);
89 if (empty($this->_membership)) {
90 // TRANS: Client exception thrown when trying to show membership of a non-subscribed group
91 throw new ClientException(_('Not a member.'), 404);
100 * @param array $argarray is ignored since it's now passed in in prepare()
104 function handle($argarray=null)
106 switch ($_SERVER['REQUEST_METHOD']) {
109 $this->showMembership();
112 $this->deleteMembership();
115 // TRANS: Client exception thrown when using an unsupported HTTP method.
116 throw new ClientException(_('HTTP method not supported.'), 405);
123 * show a single membership
127 function showMembership()
129 $activity = $this->_membership->asActivity();
131 header('Content-Type: application/atom+xml; charset=utf-8');
134 $this->raw($activity->asString(true, true, true));
141 * Delete the membership (leave the group)
145 function deleteMembership()
147 if (empty($this->auth_user) ||
148 $this->auth_user->id != $this->_profile->id) {
149 // TRANS: Client exception thrown when deleting someone else's membership.
150 throw new ClientException(_("Cannot delete someone else's".
151 " membership."), 403);
154 if (Event::handle('StartLeaveGroup', array($this->_group, $this->auth_user))) {
155 Group_member::leave($this->_group->id, $this->auth_user->id);
156 Event::handle('EndLeaveGroup', array($this->_group, $this->auth_user));
163 * Return true if read only.
167 * @param array $args other arguments
169 * @return boolean is read only action?
171 function isReadOnly($args)
173 if ($_SERVER['REQUEST_METHOD'] == 'GET' ||
174 $_SERVER['REQUEST_METHOD'] == 'HEAD') {
182 * Return last modified, if applicable.
184 * Because the representation depends on the profile and group,
185 * our last modified value is the maximum of their mod time
186 * with the actual membership's mod time.
188 * @return string last modified http header
190 function lastModified()
192 return max(strtotime($this->_profile->modified),
193 strtotime($this->_group->modified),
194 strtotime($this->_membership->modified));
198 * Return etag, if applicable.
200 * A "weak" Etag including the profile and group id as well as
201 * the admin flag and ctime of the membership.
203 * @return string etag http header
207 $ctime = strtotime($this->_membership->created);
209 $adminflag = ($this->_membership->is_admin) ? 't' : 'f';
211 return 'W/"' . implode(':', array('AtomPubShowMembership',
219 * Does this require authentication?
221 * @return boolean true if delete, else false
223 function requiresAuth()
225 if ($_SERVER['REQUEST_METHOD'] == 'GET' ||
226 $_SERVER['REQUEST_METHOD'] == 'HEAD') {