91 lines
3.9 KiB
PHP
91 lines
3.9 KiB
PHP
<?php
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/*
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* Name: XML Sitemap
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* Author: Sein Kraft <mail@seinkraft.info>
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* License: GPLv2
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* Description: Adds sitemap.xml on request.
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* Documentation:
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*/
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class XMLSitemap extends Extension {
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private $sitemap_queue = "";
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public function onPageRequest(PageRequestEvent $event) {
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global $database, $config;
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if($event->page_matches("sitemap.xml"))
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{
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// add index
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$index[0] = $base_href = $config->get_string("front_page");
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$this->add_sitemap_queue($index, "weekly", "1");
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/* --- Add 20 most used tags --- */
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$popular_tags = $database->get_all("SELECT tag, count FROM tags ORDER BY `count` DESC LIMIT 0,20");
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foreach($popular_tags as $arrayid => $tag) {
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$tag = $tag['tag'];
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$popular_tags[$arrayid] = "post/list/$tag/";
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}
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$this->add_sitemap_queue($popular_tags, "monthly", "0.9" /* not sure how to deal with date here */);
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/* --- Add latest images to sitemap with higher priority --- */
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$latestimages = Image::find_images(0, 50, array());
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$latestimages_urllist = array();
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foreach($latestimages as $arrayid => $image)
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// create url from image id's
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$latestimages_urllist[$arrayid] = "post/view/$image->id";
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$this->add_sitemap_queue($latestimages_urllist, "monthly", "0.8", date("Y-m-d", $image->posted_timestamp));
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/* --- Add other tags --- */
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$other_tags = $database->get_all("SELECT tag, count FROM tags ORDER BY `count` DESC LIMIT 21,10000000");
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foreach($other_tags as $arrayid => $tag) {
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$tag = $tag['tag'];
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// create url from tags (tagme ignored)
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if ($tag != "tagme")
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$other_tags[$arrayid] = "post/list/$tag/";
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}
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$this->add_sitemap_queue($other_tags, "monthly", "0.7" /* not sure how to deal with date here */);
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/* --- Add all other images to sitemap with lower priority --- */
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$otherimages = Image::find_images(51, 10000000, array());
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foreach($otherimages as $arrayid => $image)
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// create url from image id's
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$otherimages[$arrayid] = "post/view/$image->id";
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$this->add_sitemap_queue($otherimages, "monthly", "0.6", date("Y-m-d", $image->posted_timestamp));
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/* --- Display page --- */
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// when sitemap is ok, display it from the file
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$this->display_sitemap();
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}
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}
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// Adds an array of urls to the sitemap with the given information
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private function add_sitemap_queue(/*array(urls)*/ $urls, $changefreq="monthly", $priority="0.5", $date="2013-02-01") {
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foreach($urls as $url) {
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$link = make_http(make_link("$url"));
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$this->sitemap_queue .= "
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<url>
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<loc>$link</loc>
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<lastmod>$date</lastmod>
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<changefreq>$changefreq</changefreq>
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<priority>$priority</priority>
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</url>";
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}
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}
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// sets sitemap with entries in the queue
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private function display_sitemap()
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{
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global $page;
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$page->set_mode("data");
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$page->set_type("application/xml");
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$xml = "<"."?xml version=\"1.0\" encoding=\"utf-8\"?".">
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<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">
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$this->sitemap_queue
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</urlset>";
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// sets
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$page->set_data($xml);
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}
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}
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?>
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