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path: root/actions/unsubscribe.php
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<?php
/*
 * Laconica - a distributed open-source microblogging tool
 * Copyright (C) 2008, Controlez-Vous, Inc.
 *
 * 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/>.
 */

class UnsubscribeAction extends Action {

	function handle($args) {
		parent::handle($args);
		if (!common_logged_in()) {
			common_user_error(_('Not logged in.'));
			return;
		}

		$user = common_current_user();

		if ($_SERVER['REQUEST_METHOD'] != 'POST') {
			common_redirect(common_local_url('subscriptions', array('nickname' => $user->nickname)));
			return;
		}

		# CSRF protection

		$token = $this->trimmed('token');

		if (!$token || $token != common_session_token()) {
			$this->client_error(_('There was a problem with your session token. Try again, please.'));
			return;
		}

		$other_id = $this->arg('unsubscribeto');

        if (!$other_id) {
            $this->client_error(_('No profile id in request.'));
            return;
        }

        $other = Profile::staticGet('id', $other_id);

        if (!$other_id) {
            $this->client_error(_('No profile with that id.'));
            return;
        }

		$result = subs_unsubscribe_to($user, $other);

		if ($result != true) {
			common_user_error($result);
			return;
		}

		if ($this->boolean('ajax')) {
			common_start_html('text/xml');
			common_element_start('head');
			common_element('title', null, _('Unsubscribed'));
			common_element_end('head');
			common_element_start('body');
			common_subscribe_form($other);
			common_element_end('body');
			common_element_end('html');
		} else {
    		common_redirect(common_local_url('subscriptions', array('nickname' =>
	    															$user->nickname)));
        }
	}
}