gnu-social/lib/util/taguri.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Utility for creating new tag: URIs
*
* 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 URI
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* Mint tag: URIs
*
* tag: URIs are unique identifiers according to http://tools.ietf.org/html/rfc4151.
*
* We use them for creating URIs for things that can't be HTTP retrieved.
*
* @category URI
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
class TagURI
{
/**
* Return the base part of a tag URI
*
* Note: use mint() instead.
*
* @return string Tag URI base to use
*/
static function base()
{
$base = common_config('integration', 'taguri');
if (empty($base)) {
$base = common_config('site', 'server').','.date('Y-m-d');
$pathPart = trim(common_config('site', 'path'), '/');
if (!empty($pathPart)) {
$base .= ':'.str_replace('/', ':', $pathPart);
}
}
return $base;
}
/**
* Make a new tag URI
*
* Builds the proper base and creates all the parts
*
* @return string minted URI
*/
static function mint()
{
$base = self::base();
$args = func_get_args();
$format = array_shift($args);
$extra = vsprintf($format, $args);
return 'tag:'.$base.':'.$extra;
}
}