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+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * List a group's members
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category API
+ * @package StatusNet
+ * @author Zach Copley <zach@status.net>
+ * @copyright 2009 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+ exit(1);
+}
+
+require_once INSTALLDIR . '/lib/twitterapi.php';
+
+/**
+ * List 20 newest members of the group specified by name or ID.
+ *
+ * @category API
+ * @package StatusNet
+ * @author Zach Copley <zach@status.net>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://status.net/
+ */
+
+class ApiGroupMembershipAction extends TwitterApiAction
+{
+ var $format = null;
+ var $page = null;
+ var $count = null;
+ var $max_id = null;
+ var $since_id = null;
+ var $since = null;
+ var $group = null;
+ var $profiles = null;
+
+ /**
+ * Take arguments for running
+ *
+ * @param array $args $_REQUEST args
+ *
+ * @return boolean success flag
+ *
+ */
+
+ function prepare($args)
+ {
+ parent::prepare($args);
+
+ $this->page = (int)$this->arg('page', 1);
+ $this->count = (int)$this->arg('count', 20);
+ $this->max_id = (int)$this->arg('max_id', 0);
+ $this->since_id = (int)$this->arg('since_id', 0);
+ $this->since = $this->arg('since');
+
+ $this->format = $this->arg('format');
+ $this->group = $this->getTargetGroup($this->arg('id'));
+
+ $this->profiles = $this->getProfiles();
+
+ return true;
+ }
+
+ /**
+ * Handle the request
+ *
+ * Show the members of the group
+ *
+ * @param array $args $_REQUEST data (unused)
+ *
+ * @return void
+ */
+
+ function handle($args)
+ {
+ parent::handle($args);
+
+ // XXX: RSS and Atom
+
+ switch($this->format) {
+ case 'xml':
+ $this->show_twitter_xml_users($this->profiles);
+ break;
+ case 'json':
+ $this->show_json_users($this->profiles);
+ break;
+ default:
+ $this->clientError(
+ _('API method not found!'),
+ 404,
+ $this->format
+ );
+ break;
+ }
+ }
+
+ /**
+ * Fetch the members of a group
+ *
+ * @return array $profiles list of profiles
+ */
+
+ function getProfiles()
+ {
+ $profiles = array();
+
+ $profile = $this->group->getMembers(
+ ($this->page - 1) * $this->count,
+ $this->count,
+ $this->since_id,
+ $this->max_id,
+ $this->since
+ );
+
+ while ($profile->fetch()) {
+ $profiles[] = clone($profile);
+ }
+
+ return $profiles;
+ }
+
+ /**
+ * Is this action read only?
+ *
+ * @param array $args other arguments
+ *
+ * @return boolean true
+ */
+
+ function isReadOnly($args)
+ {
+ return true;
+ }
+
+ /**
+ * When was this list of profiles last modified?
+ *
+ * @return string datestamp of the lastest profile in the group
+ */
+
+ function lastModified()
+ {
+ if (!empty($this->profiles) && (count($this->profiles) > 0)) {
+ return strtotime($this->profiles[0]->created);
+ }
+
+ return null;
+ }
+
+ /**
+ * An entity tag for this list of groups
+ *
+ * Returns an Etag based on the action name, language
+ * the group id, and timestamps of the first and last
+ * user who has joined the group
+ *
+ * @return string etag
+ */
+
+ function etag()
+ {
+ if (!empty($this->profiles) && (count($this->profiles) > 0)) {
+
+ $last = count($this->profiles) - 1;
+
+ return '"' . implode(
+ ':',
+ array($this->arg('action'),
+ common_language(),
+ $this->group->id,
+ strtotime($this->profiles[0]->created),
+ strtotime($this->profiles[$last]->created))
+ )
+ . '"';
+ }
+
+ return null;
+ }
+
+}