3 * StatusNet, the distributed open-source microblogging tool
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Evan Prodromou <evan@status.net>
25 * @copyright 2008 StatusNet, Inc.
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link http://status.net/
30 if (!defined('STATUSNET') && !defined('LACONICA')) {
35 * A class for microids
39 * @author Evan Prodromou <evan@status.net>
40 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
41 * @link http://status.net/
42 * @see http://microid.org/
47 /** Agent part of the ID. */
51 /** Resource part of the ID. */
58 * @param string $agent Agent of the ID
59 * @param string $resource Resource part
62 function __construct($agent, $resource)
64 $this->agent = $agent;
65 $this->resource = $resource;
70 * Generate a MicroID string
72 * @return string MicroID for agent and resource
77 $agent_proto = $this->_getProto($this->agent);
78 $resource_proto = $this->_getProto($this->resource);
80 return $agent_proto.'+'.$resource_proto.':sha1:'.
81 sha1(sha1($this->agent).sha1($this->resource));
85 * Utility for getting the protocol part of a URI
87 * @param string $uri URI to parse
89 * @return string scheme part of the URI
92 function _getProto($uri)
94 $colon = strpos($uri, ':');
95 return substr($uri, 0, $colon);