gnu-social/actions/joingroup.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Join a group
*
* 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 Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2008-2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
2009-08-25 23:16:46 +01:00
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Join a group
*
* This is the action for joining a group. It works more or less like the subscribe action
* for users.
*
* @category Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
2009-08-25 23:16:46 +01:00
* @link http://status.net/
*/
class JoingroupAction extends Action
{
var $group = null;
/**
* Prepare to run
*/
function prepare($args)
{
parent::prepare($args);
if (!common_logged_in()) {
// TRANS: Client error displayed when trying to join a group while not logged in.
$this->clientError(_('You must be logged in to join a group.'));
return false;
}
$nickname_arg = $this->trimmed('nickname');
$id = intval($this->arg('id'));
if ($id) {
$this->group = User_group::getKV('id', $id);
} else if ($nickname_arg) {
$nickname = common_canonical_nickname($nickname_arg);
// Permanent redirect on non-canonical nickname
if ($nickname_arg != $nickname) {
$args = array('nickname' => $nickname);
common_redirect(common_local_url('leavegroup', $args), 301);
return false;
}
$local = Local_group::getKV('nickname', $nickname);
if (!$local) {
// TRANS: Client error displayed when trying to join a non-local group.
$this->clientError(_('No such group.'), 404);
return false;
}
$this->group = User_group::getKV('id', $local->group_id);
} else {
// TRANS: Client error displayed when trying to join a group without providing a group name or group ID.
$this->clientError(_('No nickname or ID.'), 404);
return false;
}
if (!$this->group) {
// TRANS: Client error displayed when trying to join a non-existing group.
$this->clientError(_('No such group.'), 404);
return false;
}
$cur = common_current_user();
if ($cur->isMember($this->group)) {
// TRANS: Client error displayed when trying to join a group while already a member.
$this->clientError(_('You are already a member of that group.'), 403);
return false;
}
if (Group_block::isBlocked($this->group, $cur->getProfile())) {
// TRANS: Client error displayed when trying to join a group while being blocked form joining it.
$this->clientError(_('You have been blocked from that group by the admin.'), 403);
return false;
}
return true;
}
/**
* Handle the request
*
* On POST, add the current user to the group
*
* @param array $args unused
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$cur = common_current_user();
try {
$result = $cur->joinGroup($this->group);
} catch (Exception $e) {
common_log(LOG_ERR, sprintf("Couldn't join user %s to group %s: '%s'",
$cur->nickname,
$this->group->nickname,
$e->getMessage()));
// TRANS: Server error displayed when joining a group failed in the database.
// TRANS: %1$s is the joining user's nickname, $2$s is the group nickname for which the join failed.
$this->serverError(sprintf(_('Could not join user %1$s to group %2$s.'),
$cur->nickname, $this->group->nickname));
return;
}
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Title for join group page after joining.
$this->element('title', null, sprintf(_m('TITLE','%1$s joined group %2$s'),
$cur->nickname,
$this->group->nickname));
$this->elementEnd('head');
$this->elementStart('body');
if ($result instanceof Group_member) {
$form = new LeaveForm($this, $this->group);
} else if ($result instanceof Group_join_queue) {
$form = new CancelGroupForm($this, $this->group);
} else {
// wtf?
// TRANS: Exception thrown when there is an unknown error joining a group.
throw new Exception(_("Unknown error joining group."));
}
$form->show();
$this->elementEnd('body');
$this->endHTML();
} else {
common_redirect(common_local_url('groupmembers', array('nickname' =>
$this->group->nickname)),
303);
}
}
}