gnu-social/plugins/Sitemap/sitemapindex.php
2010-04-28 18:41:28 -04:00

175 lines
4.8 KiB
PHP

<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Generate sitemap index
*
* 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 Sitemap
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* Show the sitemap index
*
* @category Sitemap
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class SitemapindexAction extends Action
{
/**
* handle the action
*
* @param array $args unused.
*
* @return void
*/
function handle($args)
{
header('Content-Type: text/xml; charset=UTF-8');
$this->startXML();
$this->elementStart('sitemapindex', array('xmlns' => 'http://www.sitemaps.org/schemas/sitemap/0.9'));
$this->showUserSitemaps();
$this->showNoticeSitemaps();
$this->elementEnd('sitemapindex');
$this->endXML();
}
function showUserSitemaps()
{
$userCounts = $this->getUserCounts();
foreach ($userCounts as $dt => $cnt) {
$cnt = $cnt+0;
assert($cnt != 0);
$n = (int)$cnt / (int)SitemapPlugin::USERS_PER_MAP;
if (($cnt % SitemapPlugin::USERS_PER_MAP) != 0) {
$n++;
}
for ($i = 1; $i <= $n; $i++) {
$this->showSitemap('user', $dt, $i);
}
}
}
function showNoticeSitemaps()
{
$noticeCounts = $this->getNoticeCounts();
foreach ($noticeCounts as $dt => $cnt) {
assert($cnt != 0);
$n = $cnt / SitemapPlugin::NOTICES_PER_MAP;
if ($cnt % SitemapPlugin::NOTICES_PER_MAP) {
$n++;
}
for ($i = 1; $i <= $n; $i++) {
$this->showSitemap('notice', $dt, $i);
}
}
}
function getUserCounts()
{
$userCounts = User::cacheGet('sitemap:user:counts');
if ($userCounts === false) {
$user = new User();
$user->selectAdd();
$user->selectAdd('date(created) as regdate, count(*) as regcount');
$user->groupBy('regdate');
$user->find();
$userCounts = array();
while ($user->fetch()) {
$userCounts[$user->regdate] = $user->regcount;
}
User::cacheSet('sitemap:user:counts', $userCounts);
}
return $userCounts;
}
function getNoticeCounts()
{
$noticeCounts = Notice::cacheGet('sitemap:notice:counts');
if ($noticeCounts === false) {
$notice = new Notice();
$notice->selectAdd();
$notice->selectAdd('date(created) as postdate, count(*) as postcount');
$notice->groupBy('postdate');
$notice->find();
$noticeCounts = array();
while ($notice->fetch()) {
$noticeCounts[$notice->postdate] = $notice->postcount;
}
Notice::cacheSet('sitemap:notice:counts', $noticeCounts);
}
return $noticeCounts;
}
function showSitemap($prefix, $dt, $i)
{
list($y, $m, $d) = explode('-', $dt);
$this->elementStart('sitemap');
$this->element('loc', null, common_local_url($prefix.'sitemap',
array('year' => $y,
'month' => $m,
'day' => $d,
'index' => $i)));
$begdate = strtotime("$y-$m-$d 00:00:00");
$enddate = $begdate + (24 * 60 * 60);
if ($enddate < time()) {
$this->element('lastmod', null, date(DATE_W3C, $enddate));
}
$this->elementEnd('sitemap');
}
}