gnu-social/actions/removepeopletag.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008-2010, StatusNet, Inc.
*
* Subscription action.
*
* 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/>.
*
* PHP version 5
*
* @category Action
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
require_once INSTALLDIR . '/lib/togglepeopletag.php';
/**
* Subscription action
*
* Subscribing to a profile. Does not work for OMB 0.1 remote subscriptions,
* but may work for other remote subscription protocols, like OStatus.
*
* Takes parameters:
*
* - subscribeto: a profile ID
* - token: session token to prevent CSRF attacks
* - ajax: boolean; whether to return Ajax or full-browser results
*
* Only works if the current user is logged in.
*
* @category Action
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
class RemovepeopletagAction extends Action
{
var $user;
var $tagged;
var $peopletag;
/**
* Check pre-requisites and instantiate attributes
*
* @param Array $args array of arguments (URL, GET, POST)
*
* @return boolean success flag
*/
function prepare($args)
{
parent::prepare($args);
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
// TRANS: Client error displayed when the session token does not match or is not given.
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$this->clientError(_('There was a problem with your session token.'.
' Try again, please.'));
}
// Only for logged-in users
$this->user = common_current_user();
if (empty($this->user)) {
// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
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$this->clientError(_('Not logged in.'));
}
// Profile to subscribe to
$tagged_id = $this->arg('tagged');
$this->tagged = Profile::getKV('id', $tagged_id);
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if (empty($this->tagged)) {
// TRANS: Client error displayed when referring to a non-existing profile.
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$this->clientError(_('No such profile.'));
}
$id = $this->arg('peopletag_id');
$this->peopletag = Profile_list::getKV('id', $id);
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if (empty($this->peopletag)) {
// TRANS: Client error displayed trying to reference a non-existing list.
$this->clientError(_('No such list.'));
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}
return true;
}
/**
* Handle request
*
* Does the subscription and returns results.
*
* @param Array $args unused.
*
* @return void
*/
function handle()
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{
// Throws exception on error
$ptag = Profile_tag::unTag($this->user->id, $this->tagged->id,
$this->peopletag->tag);
if (!$ptag) {
$user = User::getKV('id', $this->tagged->id);
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if ($user) {
$this->clientError(
// TRANS: Client error displayed when an unknown error occurs while delisting a user.
// TRANS: %s is a username.
sprintf(_('There was an unexpected error while delisting %s.'),
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$user->nickname));
} else {
// TRANS: Client error displayed when an unknown error occurs while listing a user.
// TRANS: %s is a profile URL.
$this->clientError(sprintf(_('There was a problem listing %s. ' .
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'The remote server is probably not responding correctly, ' .
'please try retrying later.'), $this->profile->profileurl));
}
}
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Title after removing a user from a list.
$this->element('title', null, _('Unlisted'));
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$this->elementEnd('head');
$this->elementStart('body');
$unsubscribe = new TagButton($this, $this->tagged, $this->peopletag);
$unsubscribe->show();
$this->elementEnd('body');
$this->endHTML();
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} else {
$url = common_local_url('subscriptions',
array('nickname' => $this->user->nickname));
common_redirect($url, 303);
}
}
}