gnu-social/actions/editgroup.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
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*
* Edit an existing 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 Sarven Capadisli <csarven@status.net>
* @author Zach Copley <zach@status.net>
* @copyright 2008-2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
}
/**
* Add a new group
*
* This is the form for adding a new group
*
* @category Group
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class EditgroupAction extends GroupDesignAction
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{
var $msg;
function title()
{
// TRANS: Title for form to edit a group. %s is a group nickname.
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return sprintf(_('Edit %s group'), $this->group->nickname);
}
/**
* Prepare to run
*/
function prepare($args)
{
parent::prepare($args);
if (!common_logged_in()) {
// TRANS: Client error displayed trying to edit a group while not logged in.
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$this->clientError(_('You must be logged in to create a group.'));
return false;
}
$nickname_arg = $this->trimmed('nickname');
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$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('editgroup', $args), 301);
return false;
}
if (!$nickname) {
// TRANS: Client error displayed trying to edit a group while not proving a nickname for the group to edit.
$this->clientError(_('No nickname.'), 404);
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return false;
}
$groupid = $this->trimmed('groupid');
if ($groupid) {
$this->group = User_group::staticGet('id', $groupid);
} else {
$local = Local_group::staticGet('nickname', $nickname);
if ($local) {
$this->group = User_group::staticGet('id', $local->group_id);
}
}
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if (!$this->group) {
// TRANS: Client error displayed trying to edit a non-existing group.
$this->clientError(_('No such group.'), 404);
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return false;
}
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$cur = common_current_user();
if (!$cur->isAdmin($this->group)) {
// TRANS: Client error displayed trying to edit a group while not being a group admin.
$this->clientError(_('You must be an admin to edit the group.'), 403);
return false;
}
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return true;
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}
/**
* Handle the request
*
* On GET, show the form. On POST, try to save the group.
*
* @param array $args unused
*
* @return void
*/
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$this->trySave();
} else {
$this->showForm();
}
}
function showForm($msg=null)
{
$this->msg = $msg;
$this->showPage();
}
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function showLocalNav()
{
$nav = new GroupNav($this, $this->group);
$nav->show();
}
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function showContent()
{
$form = new GroupEditForm($this, $this->group);
$form->show();
}
function showPageNotice()
{
if ($this->msg) {
$this->element('p', 'error', $this->msg);
} else {
$this->element('p', 'instructions',
// TRANS: Form instructions for group edit form.
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_('Use this form to edit the group.'));
}
}
function showScripts()
{
parent::showScripts();
$this->autofocus('nickname');
}
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function trySave()
{
$cur = common_current_user();
if (!$cur->isAdmin($this->group)) {
// TRANS: Client error displayed trying to edit a group while not being a group admin.
$this->clientError(_('You must be an admin to edit the group.'), 403);
return;
}
$nickname = Nickname::normalize($this->trimmed('nickname'));
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$fullname = $this->trimmed('fullname');
$homepage = $this->trimmed('homepage');
$description = $this->trimmed('description');
$location = $this->trimmed('location');
$aliasstring = $this->trimmed('aliases');
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if ($this->nicknameExists($nickname)) {
// TRANS: Group edit form validation error.
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$this->showForm(_('Nickname already in use. Try another one.'));
return;
} else if (!User_group::allowedNickname($nickname)) {
// TRANS: Group edit form validation error.
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$this->showForm(_('Not a valid nickname.'));
return;
} else if (!is_null($homepage) && (strlen($homepage) > 0) &&
!Validate::uri($homepage,
array('allowed_schemes' =>
array('http', 'https')))) {
// TRANS: Group edit form validation error.
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$this->showForm(_('Homepage is not a valid URL.'));
return;
} else if (!is_null($fullname) && mb_strlen($fullname) > 255) {
// TRANS: Group edit form validation error.
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$this->showForm(_('Full name is too long (maximum 255 characters).'));
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return;
} else if (User_group::descriptionTooLong($description)) {
$this->showForm(sprintf(
// TRANS: Group edit form validation error.
_m('Description is too long (maximum %d character).',
'Description is too long (maximum %d characters).',
User_group::maxDescription()),
User_group::maxDescription()));
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return;
} else if (!is_null($location) && mb_strlen($location) > 255) {
// TRANS: Group edit form validation error.
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$this->showForm(_('Location is too long (maximum 255 characters).'));
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return;
}
if (!empty($aliasstring)) {
$aliases = array_map('common_canonical_nickname', array_unique(preg_split('/[\s,]+/', $aliasstring)));
} else {
$aliases = array();
}
if (count($aliases) > common_config('group', 'maxaliases')) {
// TRANS: Group edit form validation error.
// TRANS: %d is the maximum number of allowed aliases.
$this->showForm(sprintf(_m('Too many aliases! Maximum %d allowed.',
'Too many aliases! Maximum %d allowed.',
common_config('group', 'maxaliases')),
common_config('group', 'maxaliases')));
return;
}
foreach ($aliases as $alias) {
if (!Nickname::isValid($alias)) {
// TRANS: Group edit form validation error.
$this->showForm(sprintf(_('Invalid alias: "%s"'), $alias));
return;
}
if ($this->nicknameExists($alias)) {
// TRANS: Group edit form validation error.
$this->showForm(sprintf(_('Alias "%s" already in use. Try another one.'),
$alias));
return;
}
// XXX assumes alphanum nicknames
if (strcmp($alias, $nickname) == 0) {
// TRANS: Group edit form validation error.
$this->showForm(_('Alias can\'t be the same as nickname.'));
return;
}
}
$this->group->query('BEGIN');
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$orig = clone($this->group);
$this->group->nickname = $nickname;
$this->group->fullname = $fullname;
$this->group->homepage = $homepage;
$this->group->description = $description;
$this->group->location = $location;
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$this->group->mainpage = common_local_url('showgroup', array('nickname' => $nickname));
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$result = $this->group->update($orig);
if (!$result) {
common_log_db_error($this->group, 'UPDATE', __FILE__);
// TRANS: Server error displayed when editing a group fails.
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$this->serverError(_('Could not update group.'));
}
$result = $this->group->setAliases($aliases);
if (!$result) {
// TRANS: Server error displayed when group aliases could not be added.
$this->serverError(_('Could not create aliases.'));
}
if ($nickname != $orig->nickname) {
common_log(LOG_INFO, "Saving local group info.");
$local = Local_group::staticGet('group_id', $this->group->id);
$local->setNickname($nickname);
}
$this->group->query('COMMIT');
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if ($this->group->nickname != $orig->nickname) {
common_redirect(common_local_url('editgroup',
array('nickname' => $nickname)),
303);
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} else {
// TRANS: Group edit form success message.
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$this->showForm(_('Options saved.'));
}
}
function nicknameExists($nickname)
{
$group = Local_group::staticGet('nickname', $nickname);
if (!empty($group) &&
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$group->group_id != $this->group->id) {
return true;
}
$alias = Group_alias::staticGet('alias', $nickname);
if (!empty($alias) &&
$alias->group_id != $this->group->id) {
return true;
}
return false;
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}
}