options = get_wpseo_options(); add_action( 'wp_head', array( $this, 'head' ), 1 ); // The head function here calls action wpseo_head, to which we hook all our functionality add_action( 'wpseo_head', array( $this, 'debug_marker' ), 2 ); add_action( 'wpseo_head', array( $this, 'robots' ), 6 ); add_action( 'wpseo_head', array( $this, 'metadesc' ), 10 ); add_action( 'wpseo_head', array( $this, 'metakeywords' ), 11 ); add_action( 'wpseo_head', array( $this, 'canonical' ), 20 ); add_action( 'wpseo_head', array( $this, 'adjacent_rel_links' ), 21 ); add_action( 'wpseo_head', array( $this, 'author' ), 22 ); add_action( 'wpseo_head', array( $this, 'publisher' ), 23 ); add_action( 'wpseo_head', array( $this, 'webmaster_tools_authentication' ), 90 ); // Remove actions that we will handle through our wpseo_head call, and probably change the output of remove_action( 'wp_head', 'rel_canonical' ); remove_action( 'wp_head', 'index_rel_link' ); remove_action( 'wp_head', 'start_post_rel_link' ); remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head' ); add_filter( 'wp_title', array( $this, 'title' ), 15, 3 ); add_filter( 'thematic_doctitle', array( $this, 'title' ), 15 ); add_action( 'wp', array( $this, 'page_redirect' ), 99, 1 ); add_action( 'template_redirect', array( $this, 'noindex_feed' ) ); add_filter( 'loginout', array( $this, 'nofollow_link' ) ); add_filter( 'register', array( $this, 'nofollow_link' ) ); if ( isset( $this->options['hide-rsdlink'] ) && $this->options['hide-rsdlink'] ) remove_action( 'wp_head', 'rsd_link' ); if ( isset( $this->options['hide-wlwmanifest'] ) && $this->options['hide-wlwmanifest'] ) remove_action( 'wp_head', 'wlwmanifest_link' ); if ( isset( $this->options['hide-shortlink'] ) && $this->options['hide-shortlink'] ) { remove_action( 'wp_head', 'wp_shortlink_wp_head' ); remove_action( 'template_redirect', 'wp_shortlink_header' ); } if ( isset( $this->options['hide-feedlinks'] ) && $this->options['hide-feedlinks'] ) { // @todo: add option to display just normal feed and hide comment feed. remove_action( 'wp_head', 'feed_links', 2 ); remove_action( 'wp_head', 'feed_links_extra', 3 ); } if ( ( isset( $this->options['disable-date'] ) && $this->options['disable-date'] ) || ( isset( $this->options['disable-author'] ) && $this->options['disable-author'] ) || ( isset( $this->options['disable-post_formats'] ) && $this->options['disable-post_formats'] ) ) add_action( 'wp', array( $this, 'archive_redirect' ) ); if ( isset( $this->options['redirectattachment'] ) && $this->options['redirectattachment'] ) add_action( 'template_redirect', array( $this, 'attachment_redirect' ), 1 ); if ( isset( $this->options['trailingslash'] ) && $this->options['trailingslash'] ) add_filter( 'user_trailingslashit', array( $this, 'add_trailingslash' ), 10, 2 ); if ( isset( $this->options['cleanpermalinks'] ) && $this->options['cleanpermalinks'] ) add_action( 'template_redirect', array( $this, 'clean_permalink' ), 1 ); if ( isset( $this->options['cleanreplytocom'] ) && $this->options['cleanreplytocom'] ) add_filter( 'comment_reply_link', array( $this, 'remove_reply_to_com' ) ); add_filter( 'the_content_feed', array( $this, 'embed_rssfooter' ) ); add_filter( 'the_excerpt_rss', array( $this, 'embed_rssfooter_excerpt' ) ); if ( isset( $this->options['forcerewritetitle'] ) && $this->options['forcerewritetitle'] ) { add_action( 'get_header', array( $this, 'force_rewrite_output_buffer' ) ); add_action( 'wp_footer', array( $this, 'flush_cache' ) ); } if ( isset( $this->options['title_test'] ) && $this->options['title_test'] ) add_filter( 'wpseo_title', array( $this, 'title_test_helper' ) ); if ( isset( $_GET['replytocom'] ) ) { remove_action( 'wp_head', 'wp_no_robots' ); add_action( 'template_redirect', array( $this, 'replytocom_redirect' ), 1 ); } } /** * Determine whether the current page is the homepage and shows posts. * * @return bool */ function is_home_posts_page() { return ( is_home() && 'page' != get_option( 'show_on_front' ) ); } /** * Determine whether the current page is a static homepage. * * @return bool */ function is_home_static_page() { return ( is_front_page() && 'page' == get_option( 'show_on_front' ) && is_page( get_option( 'page_on_front' ) ) ); } /** * Determine whether this is the posts page, regardless of whether it's the frontpage or not. * * @return bool */ function is_posts_page() { return ( is_home() && 'page' == get_option( 'show_on_front' ) ); } /** * Used for static home and posts pages as well as singular titles. * * @param object|null $object if filled, object to get the title for * @return string */ function get_content_title( $object = null ) { if ( is_null( $object ) ) { global $wp_query; $object = $wp_query->get_queried_object(); } $title = wpseo_get_value( 'title', $object->ID ); if ( !empty( $title ) ) return wpseo_replace_vars( $title, (array) $object ); return $this->get_title_from_options( 'title-' . $object->post_type, $object ); } /** * Used for category, tag, and tax titles. * * @return string */ function get_taxonomy_title() { global $wp_query; $object = $wp_query->get_queried_object(); $title = trim( wpseo_get_term_meta( $object, $object->taxonomy, 'title' ) ); if ( !empty( $title ) ) return wpseo_replace_vars( $title, (array) $object ); return $this->get_title_from_options( 'title-' . $object->taxonomy, $object ); } /** * Used for author titles. * * @return string */ function get_author_title() { $author_id = get_query_var( 'author' ); $title = get_the_author_meta( 'wpseo_title', $author_id ); if ( !empty( $title ) ) return wpseo_replace_vars( $title, array() ); return $this->get_title_from_options( 'title-author' ); } /** * Simple function to use to pull data from $options. * * All titles pulled from options will be run through the wpseo_replace_vars function. * * @param string $index name of the page to get the title from the settings for. * @param object|array $var_source possible object to pul variables from. * @return string */ function get_title_from_options( $index, $var_source = array() ) { if ( !isset( $this->options[$index] ) || empty( $this->options[$index] ) ) { if ( is_singular() ) return wpseo_replace_vars( '%%title%% %%sep%% %%sitename%%', (array) $var_source ); else return ''; } return wpseo_replace_vars( $this->options[$index], (array) $var_source ); } /** * Get the default title for the current page. * * This is the fallback title generator used when a title hasn't been set for the specific content, taxonomy, author * details, or in the options. It scrubs off any present prefix before or after the title (based on $seplocation) in * order to prevent duplicate seperations from appearing in the title (this happens when a prefix is supplied to the * wp_title call on singular pages). * * @param string $sep the separator used between variables * @param string $seplocation Whether the separator should be left or right. * @param string $title possible title that's already set * @return string */ function get_default_title( $sep, $seplocation, $title = '' ) { if ( 'right' == $seplocation ) $regex = '/\s*' . preg_quote( trim( $sep ), '/' ) . '\s*/'; else $regex = '/^\s*' . preg_quote( trim( $sep ), '/' ) . '\s*/'; $title = preg_replace( $regex, '', $title ); if ( empty( $title ) ) { $title = get_bloginfo( 'name' ); $title = $this->add_paging_to_title( $sep, $seplocation, $title ); $title = $this->add_to_title( $sep, $seplocation, $title, get_bloginfo( 'description' ) ); return $title; } $title = $this->add_paging_to_title( $sep, $seplocation, $title ); $title = $this->add_to_title( $sep, $seplocation, $title, get_bloginfo( 'name' ) ); return $title; } /** * This function adds paging details to the title. * * @param string $sep separator used in the title * @param string $seplocation Whether the separator should be left or right. * @param string $title the title to append the paging info to * @return string */ function add_paging_to_title( $sep, $seplocation, $title ) { global $wp_query; if ( !empty( $wp_query->query_vars['paged'] ) && $wp_query->query_vars['paged'] > 1 ) return $this->add_to_title( $sep, $seplocation, $title, $wp_query->query_vars['paged'] . '/' . $wp_query->max_num_pages ); return $title; } /** * Add part to title, while ensuring that the $seplocation variable is respected. * * @param string $sep separator used in the title * @param string $seplocation Whether the separator should be left or right. * @param string $title the title to append the title_part to * @param string $title_part the part to append to the title * @return string */ function add_to_title( $sep, $seplocation, $title, $title_part ) { if ( 'right' == $seplocation ) return $title . $sep . $title_part; return $title_part . $sep . $title; } /** * Main title function. * * @param string $title Title that might have already been set. * @param string $sepinput Separator determined in theme. * @param string $seplocation Whether the separator should be left or right. * @return string */ function title( $title, $sepinput = '-', $seplocation = '' ) { global $sep; $sep = $sepinput; if ( is_feed() ) return $title; // This needs to be kept track of in order to generate // default titles for singular pages. $original_title = $title; // This conditional ensures that sites that use of wp_title(''); as the plugin // used to suggest will still work properly with these changes. if ( '' == trim( $sep ) && '' == $seplocation ) { $sep = '-'; $seplocation = 'right'; } // In the event that $seplocation is left empty, the direction will be // determined by whether the site is in rtl mode or not. This is based // upon my findings that rtl sites tend to reverse the flow of the site titles. else if ( '' == $seplocation ) $seplocation = ( is_rtl() ) ? 'left' : 'right'; $sep = ' ' . trim( $sep ) . ' '; // This flag is used to determine if any additional // processing should be done to the title after the // main section of title generation completes. $modified_title = true; // This variable holds the page-specific title part // that is used to generate default titles. $title_part = ''; if ( $this->is_home_static_page() ) { $title = $this->get_content_title(); } else if ( $this->is_home_posts_page() ) { $title = $this->get_title_from_options( 'title-home' ); } else if ( $this->is_posts_page() ) { $title = $this->get_content_title( get_post( get_option( 'page_for_posts' ) ) ); } else if ( is_singular() ) { $title = $this->get_content_title(); if ( empty( $title ) ) $title_part = $original_title; } else if ( is_search() ) { $title = $this->get_title_from_options( 'title-search' ); if ( empty( $title ) ) $title_part = sprintf( __( 'Search for "%s"', 'wordpress-seo' ), esc_html( get_search_query() ) ); } else if ( is_category() || is_tag() || is_tax() ) { $title = $this->get_taxonomy_title(); if ( empty( $title ) ) { if ( is_category() ) $title_part = single_cat_title( '', false ); else if ( is_tag() ) $title_part = single_tag_title( '', false ); else if ( function_exists( 'single_term_title' ) ) { $title_part = single_term_title( '', false ); } else { global $wp_query; $term = $wp_query->get_queried_object(); $title_part = $term->name; } } } else if ( is_author() ) { $title = $this->get_author_title(); if ( empty( $title ) ) $title_part = get_the_author_meta( 'display_name', get_query_var( 'author' ) ); } else if ( function_exists( 'is_post_type_archive' ) && is_post_type_archive() ) { $post_type = get_query_var( 'post_type' ); $title = $this->get_title_from_options( 'title-ptarchive-' . $post_type ); if ( empty( $title ) ) { $post_type_obj = get_post_type_object( $post_type ); if ( isset( $post_type_obj->labels->menu_name ) ) $title_part = $post_type_obj->labels->menu_name; else if ( isset( $post_type_obj->name ) ) $title_part = $post_type_obj->name; else $title_part = ''; //To be determined what this should be } } else if ( is_archive() ) { $title = $this->get_title_from_options( 'title-archive' ); if ( empty( $title ) ) { if ( is_month() ) $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), single_month_title( ' ', false ) ); else if ( is_year() ) $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), get_query_var( 'year' ) ); else if ( is_day() ) $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), get_the_date() ); else $title_part = __( 'Archives', 'wordpress-seo' ); } } else if ( is_404() ) { if ( 0 !== get_query_var( 'year' ) || ( 0 !== get_query_var( 'monthnum' ) || 0 !== get_query_var( 'day' ) ) ) { if ( 0 !== get_query_var( 'day' ) ) { global $post; $original_p = $post; $post->post_date = sprintf( "%04d-%02d-%02d 00:00:00", get_query_var( 'year' ), get_query_var( 'monthnum' ), get_query_var( 'day' ) ); $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), get_the_date() ); $post = $original_p; } else if ( 0 !== get_query_var( 'monthnum' ) ) { $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), single_month_title( ' ', false ) ); } else if ( 0 !== get_query_var( 'year' ) ) { $title_part = sprintf( __( '%s Archives', 'wordpress-seo' ), get_query_var( 'year' ) ); } else { $title_part = __( 'Archives', 'wordpress-seo' ); } } else { $title = $this->get_title_from_options( 'title-404' ); if ( empty( $title ) ) $title_part = __( 'Page not found', 'wordpress-seo' ); } } else { // In case the page type is unknown, leave the title alone. $modified_title = false; // If you would like to generate a default title instead, // the following code could be used instead of the line above: // $title_part = $title; } if ( ( $modified_title && empty( $title ) ) || !empty( $title_part ) ) $title = $this->get_default_title( $sep, $seplocation, $title_part ); return esc_html( strip_tags( stripslashes( apply_filters( 'wpseo_title', $title ) ) ) ); } /** * Function used when title needs to be force overridden. * * @return string */ function force_wp_title() { global $wp_query; $old_wp_query = null; if ( !$wp_query->is_main_query() ) { $old_wp_query = $wp_query; wp_reset_query(); } $title = $this->title( '' ); if ( !empty( $old_wp_query ) ) { $GLOBALS['wp_query'] = $old_wp_query; unset( $old_wp_query ); } return $title; } /** * Outputs or returns the debug marker, which is also used for title replacement when force rewrite is active. * * @param bool $echo Whether or not to echo the debug marker. * @return string */ public function debug_marker( $echo = true ) { $marker = ""; if ( $echo === false ) return $marker; else echo "\n${marker}\n"; } /** * Output Webmaster Tools authentication strings */ public function webmaster_tools_authentication() { if ( is_front_page() ) { if ( !empty( $this->options['googleverify'] ) ) { $google_meta = $this->options['googleverify']; if ( strpos( $google_meta, 'content' ) ) { preg_match( '/content="([^"]+)"/', $google_meta, $match ); $google_meta = $match[1]; } echo "\n"; } if ( !empty( $this->options['msverify'] ) ) { $bing_meta = $this->options['msverify']; if ( strpos( $bing_meta, 'content' ) ) { preg_match( '/content="([^"]+)"/', $bing_meta, $match ); $bing_meta = $match[1]; } echo "\n"; } if ( !empty( $this->options['alexaverify'] ) ) { echo "options['alexaverify'] ) . "\" />\n"; } } } /** * Main wrapper function attached to wp_head. This combines all the output on the frontend of the WP SEO plugin. */ public function head() { global $wp_query; $old_wp_query = null; if ( !$wp_query->is_main_query() ) { $old_wp_query = $wp_query; wp_reset_query(); } do_action( 'wpseo_head' ); echo "\n\n"; if ( !empty( $old_wp_query ) ) { $GLOBALS['wp_query'] = $old_wp_query; unset( $old_wp_query ); } return; } /** * Output the meta robots value. */ public function robots() { global $wp_query; $robots = array(); $robots['index'] = 'index'; $robots['follow'] = 'follow'; $robots['other'] = array(); if ( is_singular() ) { global $post; if ( isset( $this->options['noindex-' . $post->post_type] ) && $this->options['noindex-' . $post->post_type] ) $robots['index'] = 'noindex'; if ( wpseo_get_value( 'meta-robots-noindex' ) == 1 ) $robots['index'] = 'noindex'; if ( wpseo_get_value( 'meta-robots-noindex' ) == 2 ) $robots['index'] = 'index'; if ( wpseo_get_value( 'meta-robots-nofollow' ) ) $robots['follow'] = 'nofollow'; if ( wpseo_get_value( 'meta-robots-adv' ) && wpseo_get_value( 'meta-robots-adv' ) != 'none' ) { foreach ( explode( ',', wpseo_get_value( 'meta-robots-adv' ) ) as $r ) { $robots['other'][] = $r; } } } else { if ( is_search() ) { $robots['index'] = 'noindex'; } else if ( is_tax() || is_tag() || is_category() ) { $term = $wp_query->get_queried_object(); if ( isset( $this->options['noindex-' . $term->taxonomy] ) && $this->options['noindex-' . $term->taxonomy] ) $robots['index'] = 'noindex'; // Three possible values, index, noindex and default, do nothing for default $term_meta = wpseo_get_term_meta( $term, $term->taxonomy, 'noindex' ); if ( 'noindex' == $term_meta || 'on' == $term_meta ) // on is for backwards compatibility $robots['index'] = 'noindex'; if ( 'index' == $term_meta ) $robots['index'] = 'index'; } else if ( ( is_author() && isset( $this->options['noindex-author'] ) && $this->options['noindex-author'] ) || ( is_date() && isset( $this->options['noindex-archive'] ) && $this->options['noindex-archive'] ) || ( is_home() && get_query_var( 'paged' ) > 1 ) ) { $robots['index'] = 'noindex'; } else if ( function_exists( 'is_post_type_archive' ) && is_post_type_archive() ) { $post_type = get_query_var( 'post_type' ); if ( isset( $this->options['noindex-ptarchive-' . $post_type] ) && $this->options['noindex-ptarchive-' . $post_type] ) $robots['index'] = 'noindex'; } if ( $wp_query->query_vars['paged'] && $wp_query->query_vars['paged'] > 1 && isset( $this->options['noindex-subpages'] ) && $this->options['noindex-subpages'] ) { $robots['index'] = 'noindex'; $robots['follow'] = 'follow'; } } foreach ( array( 'noodp', 'noydir' ) as $robot ) { if ( isset( $this->options[$robot] ) && $this->options[$robot] ) { $robots['other'][] = $robot; } } $robotsstr = $robots['index'] . ',' . $robots['follow']; $robots['other'] = array_unique( $robots['other'] ); foreach ( $robots['other'] as $robot ) { $robotsstr .= ',' . $robot; } $robotsstr = preg_replace( '/^index,follow,?/', '', $robotsstr ); $robotsstr = apply_filters( 'wpseo_robots', $robotsstr ); if ( $robotsstr != '' ) echo '' . "\n"; } /** * This function normally outputs the canonical but is also used in other places to retrieve the canonical URL * for the current page. * * @param bool $echo Whether or not to output the canonical element. * @param bool $unpaged Whether or not to return the canonical with or without pagination added to the URL. * @return string $canonical */ public function canonical( $echo = true, $unpaged = false ) { $canonical = false; // Set decent canonicals for homepage, singulars and taxonomy pages if ( is_singular() ) { if ( wpseo_get_value( 'canonical' ) && wpseo_get_value( 'canonical' ) != '' ) { $canonical = wpseo_get_value( 'canonical' ); } else { $obj = get_queried_object(); $canonical = get_permalink( $obj->ID ); // Fix paginated pages canonical, but only if the page is truly paginated. if ( get_query_var( 'page' ) > 1 ) { global $wp_rewrite; $numpages = substr_count( $obj->post_content, '' ) + 1; if ( $numpages && get_query_var( 'page' ) < $numpages ) { if ( !$wp_rewrite->using_permalinks() ) { $canonical = add_query_arg( 'page', get_query_var( 'page' ), $canonical ); } else { $canonical = user_trailingslashit( trailingslashit( $canonical ) . get_query_var( 'page' ) ); } } } } } else { if ( is_search() ) { $canonical = get_search_link(); } else if ( is_front_page() ) { $canonical = home_url( '/' ); } else if ( $this->is_posts_page() ) { $canonical = get_permalink( get_option( 'page_for_posts' ) ); } else if ( is_tax() || is_tag() || is_category() ) { $term = get_queried_object(); $canonical = wpseo_get_term_meta( $term, $term->taxonomy, 'canonical' ); if ( !$canonical ) $canonical = get_term_link( $term, $term->taxonomy ); } else if ( function_exists( 'get_post_type_archive_link' ) && is_post_type_archive() ) { $canonical = get_post_type_archive_link( get_query_var( 'post_type' ) ); } else if ( is_author() ) { $canonical = get_author_posts_url( get_query_var( 'author' ), get_query_var( 'author_name' ) ); } else if ( is_archive() ) { if ( is_date() ) { if ( is_day() ) { $canonical = get_day_link( get_query_var( 'year' ), get_query_var( 'monthnum' ), get_query_var( 'day' ) ); } else if ( is_month() ) { $canonical = get_month_link( get_query_var( 'year' ), get_query_var( 'monthnum' ) ); } else if ( is_year() ) { $canonical = get_year_link( get_query_var( 'year' ) ); } } } if ( $canonical && $unpaged ) return $canonical; if ( $canonical && get_query_var( 'paged' ) > 1 ) { global $wp_rewrite; if ( !$wp_rewrite->using_permalinks() ) { $canonical = add_query_arg( 'paged', get_query_var( 'paged' ), $canonical ); } else { if ( is_front_page() ) { $base = $GLOBALS['wp_rewrite']->using_index_permalinks() ? 'index.php/' : '/'; $canonical = home_url( $base ); } $canonical = user_trailingslashit( trailingslashit( $canonical ) . trailingslashit( $wp_rewrite->pagination_base ) . get_query_var( 'paged' ) ); } } } if ( $canonical && isset( $this->options['force_transport'] ) && 'default' != $this->options['force_transport'] ) $canonical = preg_replace( '/https?/', $this->options['force_transport'], $canonical ); $canonical = apply_filters( 'wpseo_canonical', $canonical ); if ( $canonical && !is_wp_error( $canonical ) ) { if ( $echo !== false ) echo '' . "\n"; else return $canonical; } } /** * Adds 'prev' and 'next' links to archives. * * @link http://googlewebmastercentral.blogspot.com/2011/09/pagination-with-relnext-and-relprev.html * @since 1.0.3 */ public function adjacent_rel_links() { // Don't do this for Genesis, as the way Genesis handles homepage functionality is different and causes issues sometimes. if ( is_home() || function_exists( 'genesis' ) ) return; global $wp_query; if ( !is_singular() ) { $url = $this->canonical( false, true ); if ( $url ) { $paged = get_query_var( 'paged' ); if ( 0 == $paged ) $paged = 1; if ( $paged == 2 ) $this->adjacent_rel_link( "prev", $url, $paged - 1, true ); // Make sure to use index.php when needed, done after paged == 2 check so the prev links to homepage will not have index.php erroneously. if ( is_front_page() ) { $base = $GLOBALS['wp_rewrite']->using_index_permalinks() ? 'index.php/' : '/'; $url = home_url( $base ); } if ( $paged > 2 ) $this->adjacent_rel_link( "prev", $url, $paged - 1, true ); if ( $paged < $wp_query->max_num_pages ) $this->adjacent_rel_link( "next", $url, $paged + 1, true ); } } else { $numpages = 0; if ( isset( $wp_query->post->post_content ) ) { $numpages = substr_count( $wp_query->post->post_content, '' ) + 1; } if ( $numpages > 1 ) { $page = get_query_var( 'page' ); if ( !$page ) $page = 1; $url = get_permalink( $wp_query->post->ID ); // If the current page is the frontpage, pagination should use /base/ if ( $this->is_home_static_page() ) $usebase = true; else $usebase = false; if ( $page > 1 ) $this->adjacent_rel_link( "prev", $url, $page - 1, $usebase, 'single_paged' ); if ( $page < $numpages ) $this->adjacent_rel_link( "next", $url, $page + 1, $usebase, 'single_paged' ); } } } /** * Get adjacent pages link for archives * * @param string $rel Link relationship, prev or next. * @param string $url the unpaginated URL of the current archive. * @param string $page the page number to add on to $url for the $link tag. * @param boolean $incl_pagination_base whether or not to include /page/ or not. * @return string $link link element * * @since 1.0.2 */ private function adjacent_rel_link( $rel, $url, $page, $incl_pagination_base ) { global $wp_rewrite; if ( !$wp_rewrite->using_permalinks() ) { if ( $page > 1 ) $url = add_query_arg( 'paged', $page, $url ); } else { if ( $page > 1 ) { $base = ''; if ( $incl_pagination_base ) $base = trailingslashit( $wp_rewrite->pagination_base ); $url = user_trailingslashit( trailingslashit( $url ) . $base . $page ); } } $link = apply_filters( "wpseo_" . $rel . "_rel_link", "\n" ); if ( $link ) echo $link; } /** * Output the rel=publisher code on every page of the site. */ public function publisher() { if ( isset( $this->options['plus-publisher'] ) && !empty( $this->options['plus-publisher'] ) ) echo '' . "\n"; } /** * Outputs the rel=author */ public function author() { $gplus = false; if ( is_home() || is_front_page() ) { if ( isset( $this->options['plus-author'] ) && $this->options['plus-author'] != -1 ) $gplus = get_the_author_meta( 'googleplus', $this->options['plus-author'] ); } else if ( is_singular() ) { global $post; $gplus = get_the_author_meta( 'googleplus', $post->post_author ); // unset gplus when authorship is disabled for this post type if ( isset( $this->options['noauthorship-' . $post->post_type] ) && $this->options['noauthorship-' . $post->post_type] ) { $gplus = false; } } $gplus = apply_filters( 'wpseo_author_link', $gplus ); if ( $gplus ) echo '' . "\n"; } /** * Outputs the meta keywords element. * * @return string */ public function metakeywords() { global $wp_query; if ( !isset( $this->options['usemetakeywords'] ) || !$this->options['usemetakeywords'] ) return; $metakey = ''; if ( is_singular() ) { global $post; $metakey = wpseo_get_value( 'metakeywords' ); if ( isset( $this->options['metakey-' . $post->post_type] ) && ( !$metakey || empty( $metakey ) ) ) { $metakey = wpseo_replace_vars( $this->options['metakey-' . $post->post_type], (array) $post ); } } else { if ( $this->is_home_posts_page() && isset( $this->options['metakey-home'] ) ) { $metakey = wpseo_replace_vars( $this->options['metakey-home'], array() ); } else if ( $this->is_home_static_page() ) { global $post; $metakey = wpseo_get_value( 'metakey' ); if ( ( $metakey == '' || !$metakey ) && isset( $this->options['metakey-' . $post->post_type] ) ) $metakey = wpseo_replace_vars( $this->options['metakey-' . $post->post_type], (array) $post ); } else if ( is_category() || is_tag() || is_tax() ) { $term = $wp_query->get_queried_object(); $metakey = wpseo_get_term_meta( $term, $term->taxonomy, 'metakey' ); if ( !$metakey && isset( $this->options['metakey-' . $term->taxonomy] ) ) $metakey = wpseo_replace_vars( $this->options['metakey-' . $term->taxonomy], (array) $term ); } else if ( is_author() ) { $author_id = get_query_var( 'author' ); $metakey = get_the_author_meta( 'metakey', $author_id ); if ( !$metakey && isset( $this->options['metakey-author'] ) ) $metakey = wpseo_replace_vars( $this->options['metakey-author'], (array) $wp_query->get_queried_object() ); } } $metakey = apply_filters( 'wpseo_metakey', trim( $metakey ) ); if ( !empty( $metakey ) ) echo '' . "\n"; } /** * Outputs the meta description element or returns the description text. * * @param bool $echo Whether or not to echo the description. * @return string */ public function metadesc( $echo = true ) { if ( get_query_var( 'paged' ) && get_query_var( 'paged' ) > 1 ) return; global $post, $wp_query; $metadesc = ''; if ( is_singular() ) { $metadesc = wpseo_get_value( 'metadesc' ); if ( $metadesc == '' || !$metadesc ) { if ( isset( $this->options['metadesc-' . $post->post_type] ) && $this->options['metadesc-' . $post->post_type] != '' ) $metadesc = wpseo_replace_vars( $this->options['metadesc-' . $post->post_type], (array) $post ); } } else { if ( is_search() ) { $metadesc = ''; } else if ( $this->is_home_posts_page() && isset( $this->options['metadesc-home'] ) ) { $metadesc = wpseo_replace_vars( $this->options['metadesc-home'], array() ); } else if ( $this->is_posts_page() ) { $metadesc = wpseo_get_value( 'metadesc', get_option( 'page_for_posts' ) ); if ( ( $metadesc == '' || !$metadesc ) && isset( $this->options['metadesc-' . $post->post_type] ) ) { $page = get_post( get_option( 'page_for_posts' ) ); $metadesc = wpseo_replace_vars( $this->options['metadesc-' . $post->post_type], (array) $page ); } } else if ( $this->is_home_static_page() ) { global $post; $metadesc = wpseo_get_value( 'metadesc' ); if ( ( $metadesc == '' || !$metadesc ) && isset( $this->options['metadesc-' . $post->post_type] ) ) $metadesc = wpseo_replace_vars( $this->options['metadesc-' . $post->post_type], (array) $post ); } else if ( is_category() || is_tag() || is_tax() ) { $term = $wp_query->get_queried_object(); $metadesc = wpseo_get_term_meta( $term, $term->taxonomy, 'desc' ); if ( !$metadesc && isset( $this->options['metadesc-' . $term->taxonomy] ) ) $metadesc = wpseo_replace_vars( $this->options['metadesc-' . $term->taxonomy], (array) $term ); } else if ( is_author() ) { $author_id = get_query_var( 'author' ); $metadesc = get_the_author_meta( 'wpseo_metadesc', $author_id ); if ( !$metadesc && isset( $this->options['metadesc-author'] ) ) $metadesc = wpseo_replace_vars( $this->options['metadesc-author'], (array) $wp_query->get_queried_object() ); } else if ( function_exists( 'is_post_type_archive' ) && is_post_type_archive() ) { $post_type = get_query_var( 'post_type' ); if ( isset( $this->options['metadesc-ptarchive-' . $post_type] ) && '' != $this->options['metadesc-ptarchive-' . $post_type] ) { $metadesc = wpseo_replace_vars( $this->options['metadesc-ptarchive-' . $post_type], (array) $wp_query->get_queried_object() ); } } } $metadesc = apply_filters( 'wpseo_metadesc', trim( $metadesc ) ); if ( $echo !== false ) { if ( !empty( $metadesc ) ) echo '' . "\n"; else if ( current_user_can( 'manage_options' ) && is_singular() ) echo '' . "\n"; } else { return $metadesc; } } /** * Based on the redirect meta value, this function determines whether it should redirect the current post / page. * * @return mixed */ function page_redirect() { if ( is_singular() ) { global $post; if ( !isset( $post ) ) return; $redir = wpseo_get_value( 'redirect', $post->ID ); if ( !empty( $redir ) ) { wp_redirect( $redir, 301 ); exit; } } } /** * Outputs noindex values for the current page. */ public function noindex_page() { echo '' . "\n"; } /** * Send a Robots HTTP header preventing feeds from being indexed in the search results while allowing search engines to follow the links in the feed. * * @since 1.1.7 */ public function noindex_feed() { if ( is_feed() ) header( "X-Robots-Tag: noindex,follow", true ); } /** * Adds rel="nofollow" to a link, only used for login / registration links. * * @param string $input The link element as a string. * @return string */ public function nofollow_link( $input ) { return str_replace( 'options['disable-date'] ) && $this->options['disable-date'] && $wp_query->is_date ) || ( isset( $this->options['disable-author'] ) && $this->options['disable-author'] && $wp_query->is_author ) || ( isset( $this->options['disable-post_formats'] ) && $this->options['disable-post_formats'] && $wp_query->is_tax( 'post_format' ) ) ) { wp_safe_redirect( get_bloginfo( 'url' ), 301 ); exit; } } /** * If the option to redirect attachments to their parent is checked, this performs the redirect. * * An extra check is done for when the attachment has no parent. */ function attachment_redirect() { global $post; if ( is_attachment() && isset( $post->post_parent ) && is_numeric( $post->post_parent ) && $post->post_parent != 0 ) { wp_safe_redirect( get_permalink( $post->post_parent ), 301 ); exit; } } /** * Trailing slashes for everything except is_single(). * * Thanks to Mark Jaquith for this code. * * @param string $url * @param string $type * @return string */ function add_trailingslash( $url, $type ) { if ( 'single' === $type || 'single_paged' === $type ) { return $url; } else { return trailingslashit( $url ); } } /** * Removes the ?replytocom variable from the link, replacing it with a #comment- anchor. * * @param string $link The comment link as a string. * @return string */ public function remove_reply_to_com( $link ) { return preg_replace( '/href=\'(.*(\?|&|&)replytocom=(\d+)#respond)/', 'href=\'#comment-$3', $link ); } /** * Redirect out the ?replytocom variables when cleanreplytocom is enabled * * @since 1.4.13 */ function replytocom_redirect() { if ( !isset( $this->options['cleanreplytocom'] ) || !$this->options['cleanreplytocom'] ) return; if ( isset( $_GET['replytocom'] ) && is_singular() ) { global $post; $url = get_permalink( $post->ID ); $hash = $_GET['replytocom']; $query_string = remove_query_arg( 'replytocom', $_SERVER['QUERY_STRING'] ); if ( !empty( $query_string ) ) $url .= '?' . $query_string; $url .= '#comment-' . $hash; wp_safe_redirect( $url, 301 ); exit; } } /** * Removes unneeded query variables from the URL. */ public function clean_permalink() { if ( is_robots() || get_query_var( 'sitemap' ) ) return; global $wp_query; // Recreate current URL $cururl = 'http'; if ( isset( $_SERVER["HTTPS"] ) && $_SERVER["HTTPS"] == "on" ) { $cururl .= "s"; } $cururl .= "://"; if ( $_SERVER["SERVER_PORT"] != "80" ) $cururl .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"]; else $cururl .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"]; $properurl = ''; if ( is_singular() ) { global $post; if ( empty( $post ) ) $post = $wp_query->get_queried_object(); $properurl = get_permalink( $post->ID ); $page = get_query_var( 'page' ); if ( $page && $page != 1 ) { $post = get_post( $post->ID ); $page_count = substr_count( $post->post_content, '' ); if ( $page > ( $page_count + 1 ) ) $properurl = user_trailingslashit( trailingslashit( $properurl ) . ( $page_count + 1 ) ); else $properurl = user_trailingslashit( trailingslashit( $properurl ) . $page ); } // Fix reply to comment links, whoever decided this should be a GET variable? $result = preg_match( '/(\?replytocom=[^&]+)/', $_SERVER["REQUEST_URI"], $matches ); if ( $result ) $properurl .= str_replace( '?replytocom=', '#comment-', $matches[0] ); // Prevent cleaning out posts & page previews for people capable of viewing them if ( isset( $_GET['preview'] ) && isset( $_GET['preview_nonce'] ) && current_user_can( 'edit_post' ) ) $properurl = ''; } else if ( is_front_page() ) { if ( $this->is_home_posts_page() ) { $properurl = get_bloginfo( 'url' ) . '/'; } elseif ( $this->is_home_static_page() ) { global $post; $properurl = get_permalink( $post->ID ); } } else if ( is_category() || is_tag() || is_tax() ) { $term = $wp_query->get_queried_object(); if ( is_feed() ) $properurl = get_term_feed_link( $term->term_id, $term->taxonomy ); else $properurl = get_term_link( $term, $term->taxonomy ); } else if ( is_search() ) { $s = preg_replace( '/(%20|\+)/', ' ', get_search_query() ); $properurl = get_bloginfo( 'url' ) . '/?s=' . rawurlencode( $s ); } else if ( is_404() ) { if ( function_exists( 'is_multisite' ) && is_multisite() && !is_subdomain_install() && is_main_site() ) { if ( $cururl == get_bloginfo( 'url' ) . '/blog/' || $cururl == get_bloginfo( 'url' ) . '/blog' ) { if ( $this->is_home_static_page() ) $properurl = get_permalink( get_option( 'page_for_posts' ) ); else $properurl = get_bloginfo( 'url' ) . '/'; } } } if ( !empty( $properurl ) && $wp_query->query_vars['paged'] != 0 && $wp_query->post_count != 0 ) { if ( is_search() ) { $properurl = get_bloginfo( 'url' ) . '/page/' . $wp_query->query_vars['paged'] . '/?s=' . rawurlencode( get_search_query() ); } else { $properurl = user_trailingslashit( trailingslashit( $properurl ) . 'page/' . $wp_query->query_vars['paged'] ); } } // Prevent cleaning out the WP Subscription managers interface for everyone foreach ( array( 'wp-subscription-manager' ) as $get ) { if ( isset( $_GET[$get] ) ) { $properurl = ''; } } // Allow plugins to register their own variables not to clean $whitelisted_extravars = apply_filters( 'wpseo_whitelist_permalink_vars', array() ); if ( isset( $this->options['cleanpermalink-googlesitesearch'] ) && $this->options['cleanpermalink-googlesitesearch'] ) { // Prevent cleaning out Google Site searches $whitelisted_extravars = array_merge( $whitelisted_extravars, array( 'q', 'cx', 'debug', 'cof', 'ie', 'sa' ) ); } if ( isset( $this->options['cleanpermalink-googlecampaign'] ) && $this->options['cleanpermalink-googlecampaign'] ) { // Prevent cleaning out Google Analytics campaign variables $whitelisted_extravars = array_merge( $whitelisted_extravars, array( 'utm_campaign', 'utm_medium', 'utm_source', 'utm_content', 'utm_term' ) ); } if ( isset( $this->options['cleanpermalink-extravars'] ) && strlen( $this->options['cleanpermalink-extravars'] ) > 0 ) { $whitelisted_extravars = array_merge( $whitelisted_extravars, explode( ',', $this->options['cleanpermalink-extravars'] ) ); } foreach ( $whitelisted_extravars as $get ) { if ( isset( $_GET[trim( $get )] ) ) { $properurl = ''; } } if ( !empty( $properurl ) && $cururl != $properurl ) { wp_safe_redirect( $properurl, 301 ); exit; } } /** * Replaces the possible RSS variables with their actual values. * * @param string $content The RSS content that should have the variables replaced. * @return string */ function rss_replace_vars( $content ) { global $post; $authorlink = ''; $postlink = '' . get_the_title() . ""; $bloglink = '' . get_bloginfo( 'name' ) . ''; $blogdesclink = '' . get_bloginfo( 'name' ) . ' - ' . get_bloginfo( 'description' ) . ''; $content = stripslashes( $content ); $content = str_replace( "%%AUTHORLINK%%", $authorlink, $content ); $content = str_replace( "%%POSTLINK%%", $postlink, $content ); $content = str_replace( "%%BLOGLINK%%", $bloglink, $content ); $content = str_replace( "%%BLOGDESCLINK%%", $blogdesclink, $content ); return $content; } /** * Adds the RSS footer (or header) to the full RSS feed item. * * @param string $content Feed item content. * @return string */ function embed_rssfooter( $content ) { if ( is_feed() ) { if ( isset( $this->options['rssbefore'] ) && !empty( $this->options['rssbefore'] ) ) { $content = "

" . $this->rss_replace_vars( $this->options['rssbefore'] ) . "

" . $content; } if ( isset( $this->options['rssafter'] ) && !empty( $this->options['rssafter'] ) ) { $content .= "

" . $this->rss_replace_vars( $this->options['rssafter'] ) . "

"; } } return $content; } /** * Adds the RSS footer (or header) to the excerpt RSS feed item. * * @param string $content Feed item excerpt. * @return string */ function embed_rssfooter_excerpt( $content ) { if ( is_feed() ) { if ( isset( $this->options['rssbefore'] ) && !empty( $this->options['rssbefore'] ) ) { $content = "

" . $this->rss_replace_vars( $this->options['rssbefore'] ) . "

" . $content . "

"; } if ( isset( $this->options['rssafter'] ) && !empty( $this->options['rssafter'] ) ) { $content = "

" . $content . "

" . $this->rss_replace_vars( $this->options['rssafter'] ) . "

"; } } return $content; } /** * Used in the force rewrite functionality this retrieves the output, replaces the title with the proper SEO * title and then flushes the output. */ function flush_cache() { global $wp_query, $wpseo_ob, $sep; if ( !$wpseo_ob ) return; $content = ob_get_contents(); $old_wp_query = $wp_query; wp_reset_query(); $title = $this->title( '', $sep ); // Find all titles, strip them out and add the new one in within the debug marker, so it's easily identified whether a site uses force rewrite. if ( preg_match_all( '/(.*)?<\/title>/i', $content, $matches ) ) { $count = count( $matches[0] ); if ( $count > 0 ) { $i = 0; while ( $count > $i ) { $content = str_replace( $matches[0][$i], '', $content ); $i++; } } } $content = str_replace( $this->debug_marker( false ), $this->debug_marker( false ) . "\n" . '<title>' . $title . '', $content ); ob_end_clean(); $GLOBALS['wp_query'] = $old_wp_query; echo $content; } /** * Starts the output buffer so it can later be fixed by flush_cache() */ function force_rewrite_output_buffer() { global $wpseo_ob; $wpseo_ob = true; ob_start(); } /** * Function used in testing whether the title should be force rewritten or not. * * @param string $title * @return string */ function title_test_helper( $title ) { if ( !defined( 'DONOTCACHEPAGE' ) ) define( 'DONOTCACHEPAGE', true ); if ( !defined( 'DONOTCACHCEOBJECT' ) ) define( 'DONOTCACHCEOBJECT', true ); if ( !defined( 'DONOTMINIFY' ) ) define( 'DONOTMINIFY', true ); global $wp_version; if ( $_SERVER['HTTP_USER_AGENT'] == "WordPress/${wp_version}; " . get_bloginfo( 'url' ) . " - Yoast" ) return 'This is a Yoast Test Title'; return $title; } } function initialize_wpseo_front() { global $wpseo_front; $wpseo_front = new WPSEO_Frontend; } add_action( 'init', 'initialize_wpseo_front' );