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d858656023
Previously, `wp_favicon_request()` was introduced in [13205] to avoid a performance hit of serving a full 404 page on every favicon request. While working as intended, that implementation did not provide a way for theme or plugin authors to manage the behavior of favicon requests. This changeset implements the following logic (only applied if WordPress is installed in the root directory): * If there is a Site Icon set in Customizer, redirect `/favicon.ico` requests to that icon. * Otherwise, use the WordPress logo as a default icon. * If a physical `/favicon.ico` file exists, do nothing, let the server handle the request. Handling `/favicon.ico` is now more consistent with handling `/robots.txt` requests. New functions and hooks: * Introduce `is_favicon()` conditional tag to complement `is_robots()`. * Introduce `do_favicon` action to complement `do_robots` and use it in template loader. * Introduce `do_favicon()` function, hooked to the above action by default, to complement `do_robots()`. * Introduce `do_faviconico` action to complement `do_robotstxt`, for plugins to override the default behavior. * Mark `wp_favicon_request()` as deprecated in favor of `do_favicon()`. Props jonoaldersonwp, birgire, joostdevalk, mukesh27, SergeyBiryukov. Fixes #47398. Built from https://develop.svn.wordpress.org/trunk@47018 git-svn-id: http://core.svn.wordpress.org/trunk@46818 1a063a9b-81f0-0310-95a4-ce76da25c4cd
115 lines
2.9 KiB
PHP
115 lines
2.9 KiB
PHP
<?php
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/**
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* Loads the correct template based on the visitor's url
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*
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* @package WordPress
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*/
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if ( wp_using_themes() ) {
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/**
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* Fires before determining which template to load.
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*
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* @since 1.5.0
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*/
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do_action( 'template_redirect' );
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}
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/**
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* Filters whether to allow 'HEAD' requests to generate content.
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*
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* Provides a significant performance bump by exiting before the page
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* content loads for 'HEAD' requests. See #14348.
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*
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* @since 3.5.0
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*
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* @param bool $exit Whether to exit without generating any content for 'HEAD' requests. Default true.
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*/
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if ( 'HEAD' === $_SERVER['REQUEST_METHOD'] && apply_filters( 'exit_on_http_head', true ) ) {
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exit();
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}
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// Process feeds and trackbacks even if not using themes.
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if ( is_robots() ) {
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/**
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* Fired when the template loader determines a robots.txt request.
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*
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* @since 2.1.0
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*/
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do_action( 'do_robots' );
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return;
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} elseif ( is_favicon() ) {
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/**
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* Fired when the template loader determines a favicon.ico request.
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*
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* @since 5.4.0
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*/
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do_action( 'do_favicon' );
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return;
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} elseif ( is_feed() ) {
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do_feed();
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return;
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} elseif ( is_trackback() ) {
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include( ABSPATH . 'wp-trackback.php' );
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return;
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}
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if ( wp_using_themes() ) {
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$tag_templates = array(
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'is_embed' => 'get_embed_template',
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'is_404' => 'get_404_template',
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'is_search' => 'get_search_template',
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'is_front_page' => 'get_front_page_template',
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'is_home' => 'get_home_template',
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'is_privacy_policy' => 'get_privacy_policy_template',
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'is_post_type_archive' => 'get_post_type_archive_template',
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'is_tax' => 'get_taxonomy_template',
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'is_attachment' => 'get_attachment_template',
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'is_single' => 'get_single_template',
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'is_page' => 'get_page_template',
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'is_singular' => 'get_singular_template',
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'is_category' => 'get_category_template',
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'is_tag' => 'get_tag_template',
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'is_author' => 'get_author_template',
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'is_date' => 'get_date_template',
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'is_archive' => 'get_archive_template',
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);
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$template = false;
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// Loop through each of the template conditionals, and find the appropriate template file.
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foreach ( $tag_templates as $tag => $template_getter ) {
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if ( call_user_func( $tag ) ) {
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$template = call_user_func( $template_getter );
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}
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if ( $template ) {
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if ( 'is_attachment' === $tag ) {
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remove_filter( 'the_content', 'prepend_attachment' );
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}
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break;
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}
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}
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if ( ! $template ) {
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$template = get_index_template();
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}
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/**
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* Filters the path of the current template before including it.
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*
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* @since 3.0.0
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*
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* @param string $template The path of the template to include.
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*/
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$template = apply_filters( 'template_include', $template );
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if ( $template ) {
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include( $template );
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} elseif ( current_user_can( 'switch_themes' ) ) {
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$theme = wp_get_theme();
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if ( $theme->errors() ) {
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wp_die( $theme->errors() );
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}
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}
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return;
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}
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