gnu-social/actions/deletegroup.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Delete 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>
* @author Brion Vibber <brion@status.net>
* @copyright 2008-2010 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') && !defined('LACONICA')) {
exit(1);
}
/**
* Delete a group
*
* This is the action for deleting a group.
*
* @category Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Brion Vibber <brion@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/
* @fixme merge more of this code with related variants
*/
class DeletegroupAction extends RedirectingAction
{
var $group = null;
/**
* Prepare to run
*
* @fixme merge common setup code with other group actions
* @fixme allow group admins to delete their own groups
*/
function prepare($args)
{
parent::prepare($args);
if (!common_logged_in()) {
// TRANS: Client error when trying to delete group while not logged in.
$this->clientError(_('You must be logged in to delete 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 when trying to delete 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 when trying to delete a group without providing a nickname or ID for the group.
$this->clientError(_('No nickname or ID.'), 404);
return false;
}
if (!$this->group) {
// TRANS: Client error when trying to delete a non-existing group.
$this->clientError(_('No such group.'), 404);
return false;
}
$cur = common_current_user();
if (!$cur->hasRight(Right::DELETEGROUP)) {
// TRANS: Client error when trying to delete a group without having the rights to delete it.
$this->clientError(_('You are not allowed to delete this group.'), 403);
return false;
}
return true;
}
/**
* Handle the request
*
* On POST, delete the group.
*
* @param array $args unused
*
* @return void
*/
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if ($this->arg('no')) {
$this->returnToPrevious();
return;
} elseif ($this->arg('yes')) {
$this->handlePost();
return;
}
}
$this->showPage();
}
function handlePost()
{
$cur = common_current_user();
try {
if (Event::handle('StartDeleteGroup', array($this->group))) {
$this->group->delete();
Event::handle('EndDeleteGroup', array($this->group));
}
} catch (Exception $e) {
// TRANS: Server error displayed if a group could not be deleted.
// TRANS: %s is the name of the group that could not be deleted.
$this->serverError(sprintf(_('Could not delete group %s.'),
$this->group->nickname));
}
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Message given after deleting a group.
// TRANS: %s is the deleted group's name.
$this->element('title', null, sprintf(_('Deleted group %s'),
$this->group->nickname));
$this->elementEnd('head');
$this->elementStart('body');
// @fixme add a sensible AJAX response form!
$this->elementEnd('body');
$this->endHTML();
} else {
// @fixme if we could direct to the page on which this group
// would have shown... that would be awesome
common_redirect(common_local_url('groups'),
303);
}
}
function title() {
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// TRANS: Title of delete group page.
return _('Delete group');
}
function showContent() {
$this->areYouSureForm();
}
/**
* Confirm with user.
* Ripped from DeleteuserAction
*
* Shows a confirmation form.
*
* @fixme refactor common code for things like this
* @return void
*/
function areYouSureForm()
{
$id = $this->group->id;
$this->elementStart('form', array('id' => 'deletegroup-' . $id,
'method' => 'post',
'class' => 'form_settings form_entity_block',
'action' => common_local_url('deletegroup', array('id' => $this->group->id))));
$this->elementStart('fieldset');
$this->hidden('token', common_session_token());
// TRANS: Form legend for deleting a group.
$this->element('legend', _('Delete group'));
if (Event::handle('StartDeleteGroupForm', array($this, $this->group))) {
$this->element('p', null,
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// TRANS: Warning in form for deleleting a group.
_('Are you sure you want to delete this group? '.
'This will clear all data about the group from the '.
'database, without a backup. ' .
'Public posts to this group will still appear in ' .
'individual timelines.'));
foreach ($this->args as $k => $v) {
if (substr($k, 0, 9) == 'returnto-') {
$this->hidden($k, $v);
}
}
Event::handle('EndDeleteGroupForm', array($this, $this->group));
}
$this->submit('form_action-no',
// TRANS: Button label on the delete group form.
_m('BUTTON','No'),
'submit form_action-primary',
'no',
// TRANS: Submit button title for 'No' when deleting a group.
_('Do not delete this group.'));
$this->submit('form_action-yes',
// TRANS: Button label on the delete group form.
_m('BUTTON','Yes'),
'submit form_action-secondary',
'yes',
// TRANS: Submit button title for 'Yes' when deleting a group.
_('Delete this group.'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
}