--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php Tue Dec 15 13:49:49 2020 +0100
@@ -0,0 +1,310 @@
+<?php
+/**
+ * Sitemaps: WP_Sitemaps_Stylesheet class
+ *
+ * This class provides the XSL stylesheets to style all sitemaps.
+ *
+ * @package WordPress
+ * @subpackage Sitemaps
+ * @since 5.5.0
+ */
+
+/**
+ * Stylesheet provider class.
+ *
+ * @since 5.5.0
+ */
+class WP_Sitemaps_Stylesheet {
+ /**
+ * Renders the XSL stylesheet depending on whether it's the sitemap index or not.
+ *
+ * @param string $type Stylesheet type. Either 'sitemap' or 'index'.
+ */
+ public function render_stylesheet( $type ) {
+ header( 'Content-type: application/xml; charset=UTF-8' );
+
+ if ( 'sitemap' === $type ) {
+ // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- All content escaped below.
+ echo $this->get_sitemap_stylesheet();
+ }
+
+ if ( 'index' === $type ) {
+ // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- All content escaped below.
+ echo $this->get_sitemap_index_stylesheet();
+ }
+
+ exit;
+ }
+
+ /**
+ * Returns the escaped XSL for all sitemaps, except index.
+ *
+ * @since 5.5.0
+ */
+ public function get_sitemap_stylesheet() {
+ $css = $this->get_stylesheet_css();
+ $title = esc_xml( __( 'XML Sitemap' ) );
+ $description = esc_xml( __( 'This XML Sitemap is generated by WordPress to make your content more visible for search engines.' ) );
+ $learn_more = sprintf(
+ '<a href="%s">%s</a>',
+ esc_url( __( 'https://www.sitemaps.org/' ) ),
+ esc_xml( __( 'Learn more about XML sitemaps.' ) )
+ );
+
+ $text = sprintf(
+ /* translators: %s: Number of URLs. */
+ esc_xml( __( 'Number of URLs in this XML Sitemap: %s.' ) ),
+ '<xsl:value-of select="count( sitemap:urlset/sitemap:url )" />'
+ );
+
+ $lang = get_language_attributes( 'html' );
+ $url = esc_xml( __( 'URL' ) );
+ $lastmod = esc_xml( __( 'Last Modified' ) );
+ $changefreq = esc_xml( __( 'Change Frequency' ) );
+ $priority = esc_xml( __( 'Priority' ) );
+
+ $xsl_content = <<<XSL
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+ version="1.0"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:sitemap="http://www.sitemaps.org/schemas/sitemap/0.9"
+ exclude-result-prefixes="sitemap"
+ >
+
+ <xsl:output method="html" encoding="UTF-8" indent="yes"/>
+
+ <!--
+ Set variables for whether lastmod, changefreq or priority occur for any url in the sitemap.
+ We do this up front because it can be expensive in a large sitemap.
+ -->
+ <xsl:variable name="has-lastmod" select="count( /sitemap:urlset/sitemap:url/sitemap:lastmod )" />
+ <xsl:variable name="has-changefreq" select="count( /sitemap:urlset/sitemap:url/sitemap:changefreq )" />
+ <xsl:variable name="has-priority" select="count( /sitemap:urlset/sitemap:url/sitemap:priority )" />
+
+ <xsl:template match="/">
+ <html {$lang}>
+ <head>
+ <title>{$title}</title>
+ <style>
+ {$css}
+ </style>
+ </head>
+ <body>
+ <div id="sitemap">
+ <div id="sitemap__header">
+ <h1>{$title}</h1>
+ <p>{$description}</p>
+ <p>{$learn_more}</p>
+ </div>
+ <div id="sitemap__content">
+ <p class="text">{$text}</p>
+ <table id="sitemap__table">
+ <thead>
+ <tr>
+ <th class="loc">{$url}</th>
+ <xsl:if test="\$has-lastmod">
+ <th class="lastmod">{$lastmod}</th>
+ </xsl:if>
+ <xsl:if test="\$has-changefreq">
+ <th class="changefreq">{$changefreq}</th>
+ </xsl:if>
+ <xsl:if test="\$has-priority">
+ <th class="priority">{$priority}</th>
+ </xsl:if>
+ </tr>
+ </thead>
+ <tbody>
+ <xsl:for-each select="sitemap:urlset/sitemap:url">
+ <tr>
+ <td class="loc"><a href="{sitemap:loc}"><xsl:value-of select="sitemap:loc" /></a></td>
+ <xsl:if test="\$has-lastmod">
+ <td class="lastmod"><xsl:value-of select="sitemap:lastmod" /></td>
+ </xsl:if>
+ <xsl:if test="\$has-changefreq">
+ <td class="changefreq"><xsl:value-of select="sitemap:changefreq" /></td>
+ </xsl:if>
+ <xsl:if test="\$has-priority">
+ <td class="priority"><xsl:value-of select="sitemap:priority" /></td>
+ </xsl:if>
+ </tr>
+ </xsl:for-each>
+ </tbody>
+ </table>
+ </div>
+ </div>
+ </body>
+ </html>
+ </xsl:template>
+</xsl:stylesheet>
+
+XSL;
+
+ /**
+ * Filters the content of the sitemap stylesheet.
+ *
+ * @since 5.5.0
+ *
+ * @param string $xsl_content Full content for the XML stylesheet.
+ */
+ return apply_filters( 'wp_sitemaps_stylesheet_content', $xsl_content );
+ }
+
+ /**
+ * Returns the escaped XSL for the index sitemaps.
+ *
+ * @since 5.5.0
+ */
+ public function get_sitemap_index_stylesheet() {
+ $css = $this->get_stylesheet_css();
+ $title = esc_xml( __( 'XML Sitemap' ) );
+ $description = esc_xml( __( 'This XML Sitemap is generated by WordPress to make your content more visible for search engines.' ) );
+ $learn_more = sprintf(
+ '<a href="%s">%s</a>',
+ esc_url( __( 'https://www.sitemaps.org/' ) ),
+ esc_xml( __( 'Learn more about XML sitemaps.' ) )
+ );
+
+ $text = sprintf(
+ /* translators: %s: Number of URLs. */
+ esc_xml( __( 'Number of URLs in this XML Sitemap: %s.' ) ),
+ '<xsl:value-of select="count( sitemap:sitemapindex/sitemap:sitemap )" />'
+ );
+
+ $lang = get_language_attributes( 'html' );
+ $url = esc_xml( __( 'URL' ) );
+ $lastmod = esc_xml( __( 'Last Modified' ) );
+
+ $xsl_content = <<<XSL
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+ version="1.0"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:sitemap="http://www.sitemaps.org/schemas/sitemap/0.9"
+ exclude-result-prefixes="sitemap"
+ >
+
+ <xsl:output method="html" encoding="UTF-8" indent="yes" />
+
+ <!--
+ Set variables for whether lastmod occurs for any sitemap in the index.
+ We do this up front because it can be expensive in a large sitemap.
+ -->
+ <xsl:variable name="has-lastmod" select="count( /sitemap:sitemapindex/sitemap:sitemap/sitemap:lastmod )" />
+
+ <xsl:template match="/">
+ <html {$lang}>
+ <head>
+ <title>{$title}</title>
+ <style>
+ {$css}
+ </style>
+ </head>
+ <body>
+ <div id="sitemap">
+ <div id="sitemap__header">
+ <h1>{$title}</h1>
+ <p>{$description}</p>
+ <p>{$learn_more}</p>
+ </div>
+ <div id="sitemap__content">
+ <p class="text">{$text}</p>
+ <table id="sitemap__table">
+ <thead>
+ <tr>
+ <th class="loc">{$url}</th>
+ <xsl:if test="\$has-lastmod">
+ <th class="lastmod">{$lastmod}</th>
+ </xsl:if>
+ </tr>
+ </thead>
+ <tbody>
+ <xsl:for-each select="sitemap:sitemapindex/sitemap:sitemap">
+ <tr>
+ <td class="loc"><a href="{sitemap:loc}"><xsl:value-of select="sitemap:loc" /></a></td>
+ <xsl:if test="\$has-lastmod">
+ <td class="lastmod"><xsl:value-of select="sitemap:lastmod" /></td>
+ </xsl:if>
+ </tr>
+ </xsl:for-each>
+ </tbody>
+ </table>
+ </div>
+ </div>
+ </body>
+ </html>
+ </xsl:template>
+</xsl:stylesheet>
+
+XSL;
+
+ /**
+ * Filters the content of the sitemap index stylesheet.
+ *
+ * @since 5.5.0
+ *
+ * @param string $xsl_content Full content for the XML stylesheet.
+ */
+ return apply_filters( 'wp_sitemaps_stylesheet_index_content', $xsl_content );
+ }
+
+ /**
+ * Gets the CSS to be included in sitemap XSL stylesheets.
+ *
+ * @since 5.5.0
+ *
+ * @return string The CSS.
+ */
+ public function get_stylesheet_css() {
+ $text_align = is_rtl() ? 'right' : 'left';
+
+ $css = <<<EOF
+
+ body {
+ font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+ color: #444;
+ }
+
+ #sitemap__table {
+ border: solid 1px #ccc;
+ border-collapse: collapse;
+ }
+
+ #sitemap__table tr td.loc {
+ /*
+ * URLs should always be LTR.
+ * See https://core.trac.wordpress.org/ticket/16834
+ * and https://core.trac.wordpress.org/ticket/49949
+ */
+ direction: ltr;
+ }
+
+ #sitemap__table tr th {
+ text-align: {$text_align};
+ }
+
+ #sitemap__table tr td,
+ #sitemap__table tr th {
+ padding: 10px;
+ }
+
+ #sitemap__table tr:nth-child(odd) td {
+ background-color: #eee;
+ }
+
+ a:hover {
+ text-decoration: none;
+ }
+
+EOF;
+
+ /**
+ * Filters the CSS only for the sitemap stylesheet.
+ *
+ * @since 5.5.0
+ *
+ * @param string $css CSS to be applied to default XSL file.
+ */
+ return apply_filters( 'wp_sitemaps_stylesheet_css', $css );
+ }
+}