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<?php
/*
* SiteSEO
* https://siteseo.io/
* (c) SiteSEO Team <support@siteseo.io>
*/
/*
Copyright 2016 - 2024 - Benjamin Denis (email : contact@seopress.org)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
// Are we being accessed directly ?
if(!defined('SITESEO_VERSION')) {
exit('Hacking Attempt !');
}
add_action( 'template_redirect', 'siteseo_redirections_attachments', 2 );
function siteseo_redirections_attachments(){
if(siteseo_get_service('AdvancedOption')->getAdvancedAttachments() != '1'){
return;
}
global $post;
if( is_attachment() && isset($post->post_parent) && is_numeric($post->post_parent) && ($post->post_parent != 0) ){
wp_safe_redirect( get_permalink( $post->post_parent ), 301 );
exit();
}elseif(is_attachment() && isset($post->post_parent) && is_numeric($post->post_parent) && ($post->post_parent == 0)){
wp_safe_redirect(get_home_url(), 302);
exit();
}
}
add_action( 'template_redirect', 'siteseo_redirections_attachments_file', 1 );
function siteseo_redirections_attachments_file(){
if(siteseo_get_service('AdvancedOption')->getAdvancedAttachmentsFile() =='1'){
if ( is_attachment() ) {
wp_safe_redirect( wp_get_attachment_url(), 301 );
exit();
}
}
}
// Remove reply to com link
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedReplytocom()) {
add_filter('comment_reply_link', 'siteseo_remove_reply_to_com');
}
function siteseo_remove_reply_to_com($link) {
return preg_replace('/href=\'(.*(\?|&)replytocom=(\d+)#respond)/', 'href=\'#comment-$3', $link);
}
//Remove noreferrer on links
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedNoReferrer()) {
add_filter('the_content', 'siteseo_remove_noreferrer', 999);
}
function siteseo_remove_noreferrer($content) {
if(empty($content)){
return $content;
}
$attrs = [
"noreferrer " => "",
" noreferrer" => ""
];
$attrs = apply_filters( 'siteseo_link_attrs', $attrs );
return strtr($content, $attrs);
}
//Remove WP meta generator
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedWPGenerator()) {
remove_action('wp_head', 'wp_generator');
}
//Remove hentry post class
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedHentry()) {
add_filter('post_class', 'siteseo_advanced_advanced_hentry_hook');
function siteseo_advanced_advanced_hentry_hook($classes) {
$classes = array_diff($classes, ['hentry']);
return $classes;
}
}
//WordPress
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedWPShortlink()) {
remove_action('wp_head', 'wp_shortlink_wp_head');
}
//WordPress WLWManifest
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedWPManifest()) {
remove_action('wp_head', 'wlwmanifest_link');
}
//WordPress RSD
if ('1' == siteseo_get_service('AdvancedOption')->getAdvancedWPRSD()) {
remove_action('wp_head', 'rsd_link');
}
//Google site verification
add_action('wp_head', 'siteseo_advanced_advanced_google_hook', 2);
function siteseo_advanced_advanced_google_hook() {
if(is_home() || is_front_page()){
$optionGoogle = siteseo_get_service('AdvancedOption')->getAdvancedGoogleVerification();
if (!empty($optionGoogle)) {
$siteseo_advanced_advanced_google = '<meta name="google-site-verification" content="' . esc_attr($optionGoogle) . '" />';
$siteseo_advanced_advanced_google .= "\n";
echo wp_kses($siteseo_advanced_advanced_google, ['meta' => ['name' => true,'content' => true]]);
}
}
}
//Bing site verification
add_action('wp_head', 'siteseo_advanced_advanced_bing_hook', 2);
function siteseo_advanced_advanced_bing_hook() {
if (is_home() || is_front_page()) {
$optionBing = siteseo_get_service('AdvancedOption')->getAdvancedBingVerification();
if (!empty($optionBing)) {
$siteseo_advanced_advanced_bing = '<meta name="msvalidate.01" content="' . esc_attr($optionBing) . '" />';
$siteseo_advanced_advanced_bing .= "\n";
echo wp_kses($siteseo_advanced_advanced_bing, array('meta' => array('name' => true,'content' => true)));
}
}
}
//Pinterest site verification
add_action('wp_head', 'siteseo_advanced_advanced_pinterest_hook', 2);
function siteseo_advanced_advanced_pinterest_hook() {
if (is_home() || is_front_page()) {
$optionPinterest =siteseo_get_service('AdvancedOption')->getAdvancedPinterestVerification();
if (!empty($optionPinterest)) {
$siteseo_advanced_advanced_pinterest = '<meta name="p:domain_verify" content="' . esc_attr($optionPinterest) . '" />';
$siteseo_advanced_advanced_pinterest .= "\n";
echo wp_kses($siteseo_advanced_advanced_pinterest, array('meta' => array('name' => true,'content' => true)));
}
}
}
//Yandex site verification
add_action('wp_head', 'siteseo_advanced_advanced_yandex_hook', 2);
function siteseo_advanced_advanced_yandex_hook() {
if (is_home() || is_front_page()) {
$contentYandex = siteseo_get_service('AdvancedOption')->getAdvancedYandexVerification();
if(empty($contentYandex)){
return;
}
$meta = '<meta name="yandex-verification" content="' . esc_attr($contentYandex) . '" />';
$meta .= "\n";
echo wp_kses($meta, array('meta' => array('name' => true, 'content' => true)));
}
}
//Automatic alt text based on target kw
if(!empty(siteseo_get_service('AdvancedOption')->getAdvancedImageAutoAltTargetKw())){
add_filter('wp_get_attachment_image_attributes', 'siteseo_auto_img_alt_thumb_target_kw', 10, 2);
function siteseo_auto_img_alt_thumb_target_kw($atts, $attachment) {
if ( ! is_admin()) {
if (empty($atts['alt'])) {
if ('' != get_post_meta(get_the_ID(), '_siteseo_analysis_target_kw', true)) {
$atts['alt'] = esc_html(get_post_meta(get_the_ID(), '_siteseo_analysis_target_kw', true));
$atts['alt'] = apply_filters('siteseo_auto_image_alt_target_kw', $atts['alt']);
}
}
}
return $atts;
}
// Replace alt for content no use gutenberg.
add_filter('the_content', 'siteseo_auto_img_alt_target_kw', 20);
function siteseo_auto_img_alt_target_kw($content) {
if (empty($content)) {
return $content;
}
$target_keyword = get_post_meta(get_the_ID(), '_siteseo_analysis_target_kw', true);
$target_keyword = apply_filters('siteseo_auto_image_alt_target_kw', $target_keyword);
if (empty($target_keyword)) {
return $content;
}
$regex = '#<img[^>]* alt=(?:\"|\')(?<alt>([^"]*))(?:\"|\')[^>]*>#mU';
preg_match_all($regex, $content, $matches);
$matchesTag = $matches[0];
$matchesAlt = $matches['alt'];
if (empty($matchesAlt)) {
return $content;
}
$regexSrc = '#<img[^>]* src=(?:\"|\')(?<src>([^"]*))(?:\"|\')[^>]*>#mU';
foreach ($matchesAlt as $key => $alt) {
if ( ! empty($alt)) {
continue;
}
$contentMatch = $matchesTag[$key];
preg_match($regexSrc, $contentMatch, $matchSrc);
$contentToReplace = str_replace('alt=""', 'alt="' . htmlspecialchars(esc_html($target_keyword)) . '"', $contentMatch);
if ($contentMatch !== $contentToReplace) {
$content = str_replace($contentMatch, $contentToReplace, $content);
}
}
return $content;
}
}