Archived
384 lines
13 KiB
PHP
384 lines
13 KiB
PHP
<?php
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/**
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* @package Internals
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*/
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if ( !defined( 'WPSEO_VERSION' ) ) {
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header( 'HTTP/1.0 403 Forbidden' );
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die;
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}
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/**
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* Get the value from the post custom values
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*
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* @param string $val name of the value to get
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* @param int $postid post ID of the post to get the value for
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* @return bool|mixed
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*/
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function wpseo_get_value( $val, $postid = 0 ) {
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$postid = absint( $postid );
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if ( $postid === 0 ) {
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global $post;
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if ( isset( $post ) && isset( $post->post_status ) && $post->post_status != 'auto-draft')
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$postid = $post->ID;
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else
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return false;
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}
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$custom = get_post_custom( $postid );
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if ( !empty( $custom['_yoast_wpseo_' . $val][0] ) )
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return maybe_unserialize( $custom['_yoast_wpseo_' . $val][0] );
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else
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return false;
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}
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/**
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* @param string $meta the meta to change
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* @param mixed $val the value to set the meta to
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* @param int $postid the ID of the post to change the meta for.
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*/
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function wpseo_set_value( $meta, $val, $postid ) {
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update_post_meta( $postid, '_yoast_wpseo_' . $meta, $val );
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}
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/**
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* Retrieve an array of all the options the plugin uses. It can't use only one due to limitations of the options API.
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*
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* @return array of options.
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*/
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function get_wpseo_options_arr() {
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$optarr = array( 'wpseo', 'wpseo_permalinks', 'wpseo_titles', 'wpseo_rss', 'wpseo_internallinks', 'wpseo_xml', 'wpseo_social' );
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return apply_filters( 'wpseo_options', $optarr );
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}
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/**
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* Retrieve all the options for the SEO plugin in one go.
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*
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* @return array of options
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*/
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function get_wpseo_options() {
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static $options;
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if ( !isset( $options ) ) {
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$options = array();
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foreach ( get_wpseo_options_arr() as $opt ) {
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$options = array_merge( $options, (array) get_option( $opt ) );
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}
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}
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return $options;
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}
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/**
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* @param string $string the string to replace the variables in.
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* @param array $args the object some of the replacement values might come from, could be a post, taxonomy or term.
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* @param array $omit variables that should not be replaced by this function.
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* @return string
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*/
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function wpseo_replace_vars( $string, $args, $omit = array() ) {
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$args = (array) $args;
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$string = strip_tags( $string );
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// Let's see if we can bail super early.
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if ( strpos( $string, '%%' ) === false )
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return trim( preg_replace( '/\s+/u', ' ', $string ) );
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global $sep;
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if ( !isset( $sep ) || empty( $sep ) )
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$sep = '-';
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$simple_replacements = array(
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'%%sep%%' => $sep,
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'%%sitename%%' => get_bloginfo( 'name' ),
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'%%sitedesc%%' => get_bloginfo( 'description' ),
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'%%currenttime%%' => date( get_option( 'time_format' ) ),
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'%%currentdate%%' => date( get_option( 'date_format' ) ),
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'%%currentday%%' => date( 'j' ),
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'%%currentmonth%%' => date( 'F' ),
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'%%currentyear%%' => date( 'Y' ),
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);
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foreach ( $simple_replacements as $var => $repl ) {
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$string = str_replace( $var, $repl, $string );
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}
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// Let's see if we can bail early.
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if ( strpos( $string, '%%' ) === false )
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return trim( preg_replace( '/\s+/u', ' ', $string ) );
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global $wp_query;
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$defaults = array(
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'ID' => '',
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'name' => '',
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'post_author' => '',
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'post_content' => '',
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'post_date' => '',
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'post_excerpt' => '',
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'post_modified' => '',
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'post_title' => '',
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'taxonomy' => '',
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'term_id' => '',
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);
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if ( isset( $args['post_content'] ) )
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$args['post_content'] = wpseo_strip_shortcode( $args['post_content'] );
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if ( isset( $args['post_excerpt'] ) )
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$args['post_excerpt'] = wpseo_strip_shortcode( $args['post_excerpt'] );
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$r = (object) wp_parse_args( $args, $defaults );
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$max_num_pages = 1;
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if ( !is_single() ) {
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$pagenum = get_query_var( 'paged' );
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if ( $pagenum === 0 )
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$pagenum = 1;
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if ( isset( $wp_query->max_num_pages ) && $wp_query->max_num_pages != '' && $wp_query->max_num_pages != 0 )
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$max_num_pages = $wp_query->max_num_pages;
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} else {
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global $post;
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$pagenum = get_query_var( 'page' );
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$max_num_pages = ( isset( $post->post_content ) ) ? substr_count( $post->post_content, '<!--nextpage-->' ) : 1;
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if ( $max_num_pages >= 1 )
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$max_num_pages++;
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}
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// Let's do date first as it's a bit more work to get right.
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if ( $r->post_date != '' ) {
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$date = mysql2date( get_option( 'date_format' ), $r->post_date );
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} else {
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if ( get_query_var( 'day' ) && get_query_var( 'day' ) != '' ) {
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$date = get_the_date();
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} else {
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if ( single_month_title( ' ', false ) && single_month_title( ' ', false ) != '' ) {
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$date = single_month_title( ' ', false );
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} else if ( get_query_var( 'year' ) != '' ) {
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$date = get_query_var( 'year' );
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} else {
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$date = '';
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}
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}
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}
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$replacements = array(
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'%%date%%' => $date,
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'%%searchphrase%%' => esc_html( get_query_var( 's' ) ),
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'%%page%%' => ( $max_num_pages > 1 && $pagenum > 1 ) ? sprintf( $sep . ' ' . __( 'Page %d of %d', 'wordpress-seo' ), $pagenum, $max_num_pages ) : '',
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'%%pagetotal%%' => $max_num_pages,
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'%%pagenumber%%' => $pagenum,
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);
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if ( isset( $r->ID ) ) {
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$replacements = array_merge( $replacements, array(
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'%%caption%%' => $r->post_excerpt,
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'%%category%%' => wpseo_get_terms( $r->ID, 'category' ),
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'%%excerpt%%' => ( !empty( $r->post_excerpt ) ) ? strip_tags( $r->post_excerpt ) : ( ( extension_loaded( 'mbstring' ) === true ) ? mb_substr( strip_shortcodes( strip_tags( $r->post_content ) ), 0, 155, 'UTF-8' ) : substr( strip_shortcodes( strip_tags( utf8_decode( $r->post_content ) ) ), 0, 155 ) ),
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'%%excerpt_only%%' => strip_tags( $r->post_excerpt ),
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'%%focuskw%%' => wpseo_get_value( 'focuskw', $r->ID ),
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'%%id%%' => $r->ID,
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'%%modified%%' => mysql2date( get_option( 'date_format' ), $r->post_modified ),
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'%%name%%' => get_the_author_meta( 'display_name', !empty( $r->post_author ) ? $r->post_author : get_query_var( 'author' ) ),
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'%%tag%%' => wpseo_get_terms( $r->ID, 'post_tag' ),
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'%%title%%' => stripslashes( $r->post_title ),
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'%%userid%%' => !empty( $r->post_author ) ? $r->post_author : get_query_var( 'author' ),
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) );
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}
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if ( !empty( $r->taxonomy ) ) {
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$replacements = array_merge( $replacements, array(
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'%%category_description%%' => trim( strip_tags( get_term_field( 'description', $r->term_id, $r->taxonomy ) ) ),
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'%%tag_description%%' => trim( strip_tags( get_term_field( 'description', $r->term_id, $r->taxonomy ) ) ),
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'%%term_description%%' => trim( strip_tags( get_term_field( 'description', $r->term_id, $r->taxonomy ) ) ),
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'%%term_title%%' => $r->name,
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) );
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}
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foreach ( $replacements as $var => $repl ) {
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if ( !in_array( $var, $omit ) )
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$string = str_replace( $var, $repl, $string );
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}
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if ( strpos( $string, '%%' ) === false ) {
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$string = preg_replace( '/\s+/u', ' ', $string );
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return trim( $string );
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}
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if ( isset( $wp_query->query_vars['post_type'] ) && preg_match_all( '/%%pt_([^%]+)%%/u', $string, $matches, PREG_SET_ORDER ) ) {
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$pt = get_post_type_object( $wp_query->query_vars['post_type'] );
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$pt_plural = $pt_singular = $pt->name;
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if ( isset( $pt->labels->singular_name ) )
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$pt_singular = $pt->labels->singular_name;
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if ( isset( $pt->labels->name ) )
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$pt_plural = $pt->labels->name;
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$string = str_replace( '%%pt_single%%', $pt_singular, $string );
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$string = str_replace( '%%pt_plural%%', $pt_plural, $string );
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}
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if ( preg_match_all( '/%%cf_([^%]+)%%/u', $string, $matches, PREG_SET_ORDER ) ) {
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global $post;
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foreach ( $matches as $match ) {
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$string = str_replace( $match[0], get_post_meta( $post->ID, $match[1], true ), $string );
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}
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}
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if ( preg_match_all( '/%%ct_desc_([^%]+)?%%/u', $string, $matches, PREG_SET_ORDER ) ) {
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global $post;
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foreach ( $matches as $match ) {
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$terms = get_the_terms( $post->ID, $match[1] );
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$string = str_replace( $match[0], get_term_field( 'description', $terms[0]->term_id, $match[1] ), $string );
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}
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}
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if ( preg_match_all( '/%%ct_([^%]+)%%(single%%)?/u', $string, $matches, PREG_SET_ORDER ) ) {
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foreach ( $matches as $match ) {
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$single = false;
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if ( isset( $match[2] ) && $match[2] == 'single%%' )
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$single = true;
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$ct_terms = wpseo_get_terms( $r->ID, $match[1], $single );
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$string = str_replace( $match[0], $ct_terms, $string );
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}
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}
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$string = preg_replace( '/\s+/u', ' ', $string );
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return trim( $string );
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}
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/**
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* Retrieve a post's terms, comma delimited.
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*
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* @param int $id ID of the post to get the terms for.
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* @param string $taxonomy The taxonomy to get the terms for this post from.
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* @param bool $return_single If true, return the first term.
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* @return string either a single term or a comma delimited string of terms.
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*/
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function wpseo_get_terms( $id, $taxonomy, $return_single = false ) {
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// If we're on a specific tag, category or taxonomy page, return that and bail.
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if ( is_category() || is_tag() || is_tax() ) {
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global $wp_query;
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$term = $wp_query->get_queried_object();
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return $term->name;
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}
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if ( empty( $id ) || empty( $taxonomy ) )
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return '';
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$output = '';
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$terms = get_the_terms( $id, $taxonomy );
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if ( $terms ) {
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foreach ( $terms as $term ) {
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if ( $return_single )
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return $term->name;
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$output .= $term->name . ', ';
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}
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return rtrim( trim( $output ), ',' );
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}
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return '';
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}
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/**
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* Retrieve a taxonomy term's meta value.
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*
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* @param string|object $term term to get the meta value for
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* @param string $taxonomy name of the taxonomy to which the term is attached
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* @param string $meta meta value to get
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* @return bool|mixed value when the meta exists, false when it does not
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*/
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function wpseo_get_term_meta( $term, $taxonomy, $meta ) {
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if ( is_string( $term ) )
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$term = get_term_by( 'slug', $term, $taxonomy );
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if ( is_object( $term ) )
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$term = $term->term_id;
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else
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return false;
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$tax_meta = get_option( 'wpseo_taxonomy_meta' );
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if ( isset( $tax_meta[$taxonomy][$term] ) )
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$tax_meta = $tax_meta[$taxonomy][$term];
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else
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return false;
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return ( isset( $tax_meta['wpseo_' . $meta] ) ) ? $tax_meta['wpseo_' . $meta] : false;
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}
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/**
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* Strip out the shortcodes with a filthy regex, because people don't properly register their shortcodes.
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*
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* @param string $text input string that might contain shortcodes
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* @return string $text string without shortcodes
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*/
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function wpseo_strip_shortcode( $text ) {
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return preg_replace( '|\[[^\]]+\]|s', '', $text );
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}
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/**
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* Redirect /sitemap.xml to /sitemap_index.xml
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*/
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function wpseo_xml_redirect_sitemap() {
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global $wp_query;
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$current_url =( isset($_SERVER["HTTPS"] ) && $_SERVER["HTTPS"]=='on' ) ? 'https://' : 'http://';
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$current_url .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
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// must be 'sitemap.xml' and must be 404
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if ( home_url( '/sitemap.xml' ) == $current_url && $wp_query->is_404) {
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wp_redirect( home_url( '/sitemap_index.xml' ) );
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}
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}
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/**
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* Initialize sitemaps. Add sitemap rewrite rules and query var
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*/
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function wpseo_xml_sitemaps_init() {
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$options = get_option( 'wpseo_xml' );
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if ( !isset( $options['enablexmlsitemap'] ) || !$options['enablexmlsitemap'] )
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return;
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// redirects sitemap.xml to sitemap_index.xml
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add_action( 'template_redirect', 'wpseo_xml_redirect_sitemap', 0 );
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$GLOBALS['wp']->add_query_var( 'sitemap' );
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$GLOBALS['wp']->add_query_var( 'sitemap_n' );
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add_rewrite_rule( 'sitemap_index\.xml$', 'index.php?sitemap=1', 'top' );
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add_rewrite_rule( '([^/]+?)-sitemap([0-9]+)?\.xml$', 'index.php?sitemap=$matches[1]&sitemap_n=$matches[2]', 'top' );
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}
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add_action( 'init', 'wpseo_xml_sitemaps_init', 1 );
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/**
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* Notify search engines of the updated sitemap.
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*/
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function wpseo_ping_search_engines( $sitemapurl = null ) {
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$options = get_option( 'wpseo_xml' );
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$base = $GLOBALS['wp_rewrite']->using_index_permalinks() ? 'index.php/' : '';
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if ( $sitemapurl == null )
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$sitemapurl = urlencode( home_url( $base . 'sitemap_index.xml' ) );
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// Always ping Google and Bing, optionally ping Ask and Yahoo!
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wp_remote_get( 'http://www.google.com/webmasters/tools/ping?sitemap=' . $sitemapurl );
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wp_remote_get( 'http://www.bing.com/webmaster/ping.aspx?sitemap=' . $sitemapurl );
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if ( isset( $options['xml_ping_yahoo'] ) && $options['xml_ping_yahoo'] )
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wp_remote_get( 'http://search.yahooapis.com/SiteExplorerService/V1/updateNotification?appid=3usdTDLV34HbjQpIBuzMM1UkECFl5KDN7fogidABihmHBfqaebDuZk1vpLDR64I-&url=' . $sitemapurl );
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if ( isset( $options['xml_ping_ask'] ) && $options['xml_ping_ask'] )
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wp_remote_get( 'http://submissions.ask.com/ping?sitemap=' . $sitemapurl );
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}
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add_action( 'wpseo_ping_search_engines', 'wpseo_ping_search_engines' );
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function wpseo_store_tracking_response() {
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if ( ! wp_verify_nonce( $_POST['nonce'], 'wpseo_activate_tracking' ) )
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die();
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$options = get_option( 'wpseo' );
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$options['tracking_popup'] = 'done';
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if ( $_POST['allow_tracking'] == 'yes' )
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$options['yoast_tracking'] = true;
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update_option( 'wpseo', $options );
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}
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add_action('wp_ajax_wpseo_allow_tracking', 'wpseo_store_tracking_response'); |