Viewing file:  seo.php (4.54 KB) -rw-r--r--
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<?php
// Add/Save Meta Tags
add_action('wp_ajax_sitepad_save_meta_tags', 'sitepad_save_meta_tags');
function sitepad_save_meta_tags() {
global $wpdb;
// Some AJAX security
check_ajax_referer('sitepad_ajax', 'sitepad_nonce');
$msg = array();
$meta_details = array();
$page_id = (int) optGET('postID');
if(empty($page_id)){
$msg = array("error" => "Invalid page id");
echo json_encode($msg);
wp_die();
}
$allowed_meta = array('site_title', 'meta_author', 'meta_contact', 'meta_copyright', 'meta_description', 'meta_keys');
foreach($allowed_meta as $meta_key){
// We are not using optPOST because it has htmlizer which converts some greek characters to html entities
$posted = (!empty($_REQUEST[$meta_key]) ? inputsec(trim($_REQUEST[$meta_key])) : '');
if(!empty($posted)){
$meta_details[$meta_key] = $posted;
}
}
if(empty($meta_details)){
$msg = array("error" => "Nothing to save");
echo json_encode($msg);
wp_die();
}
update_post_meta($page_id, 'sitepad_meta_tags', wp_unslash( $meta_details) );
$msg = array("success" => "Metadata saved");
echo json_encode($msg);
wp_die();
}
// Clear Meta Tags
add_action('wp_ajax_sitepad_clear_meta_tags', 'sitepad_clear_meta_tags');
function sitepad_clear_meta_tags(){
// Some AJAX security
check_ajax_referer('sitepad_ajax', 'sitepad_nonce');
$meta_details = array();
$page_id = (int) optGET('postID');
if(empty($page_id)){
$msg = array("error" => "Invalid page id");
echo json_encode($msg);
wp_die();
}
$get_meta = update_post_meta($page_id, 'sitepad_meta_tags', $meta_details);
$msg = array("success" => "Meta tags deleted");
echo json_encode($msg);
wp_die();
}
// Get SEO vars value
function sitepad_replace_seo_vars( $string ){
$_post = get_queried_object();
$author_meta = get_user_by( 'id', $_post->post_author);
$vars = array('site_title' => get_bloginfo( 'name', 'display' ),
'page_title' => $_post->post_title,
'post_type' => $_post->post_type,
'author' => $author_meta->display_name,
'email' => get_option('admin_email'));
foreach($vars as $kk => $vv){
$string = str_replace('$'.$kk , $vv, $string);
}
return $string;
}
// Set the title from seo field
add_filter( 'pre_get_document_title', 'sitepad_set_seo_title');
function sitepad_set_seo_title(){
global $post;
// Is 404?
if(empty($post)){
return;
}
$meta_details = get_post_meta($post->ID, 'sitepad_meta_tags', true);
$globaldata = get_option('sitepad_global_meta_tags');
$title = '';
if(!empty($meta_details['site_title'])){
$title = sitepad_replace_seo_vars($meta_details['site_title']);
}elseif(!empty($globaldata['site_title'])){
$title = sitepad_replace_seo_vars($globaldata['site_title']);
}
return $title;
}
// Show Meta tags on Pages
add_action('wp_head', 'sitepad_show_meta_tags' , 2);
function sitepad_show_meta_tags(){
global $post;
//CrossSite Scripting is disabled as XSS Auditor would not let user Edit Page in Chrome and IE.
//@header("X-XSS-Protection: 0");
if(empty($post)){
return;
}
$echo_meta = '';
$meta_values = array();
$meta_details = get_post_meta($post->ID, 'sitepad_meta_tags', true);
$globaldata = get_option('sitepad_global_meta_tags');
// We do not have any meta data
if(empty($meta_details) && empty($globaldata)){
return true;
}
$allowed_meta = array('meta_author', 'meta_contact', 'meta_copyright', 'meta_description', 'meta_keys');
foreach($allowed_meta as $meta_key){
if(!empty($meta_details[$meta_key])){
$meta_values[$meta_key] = sitepad_replace_seo_vars($meta_details[$meta_key]);
}elseif(!empty($globaldata[$meta_key])){
$meta_values[$meta_key] = sitepad_replace_seo_vars($globaldata[$meta_key]);
}
}
if(!empty($meta_values['meta_author'])){
$echo_meta .= '<meta name="author" content="'.$meta_values['meta_author'].'" />';
}
if(!empty($meta_values['meta_contact'])){
$echo_meta .= '<meta name="contact" content="'.$meta_values['meta_contact'].'" />';
}
if(!empty($meta_values['meta_copyright'])){
$echo_meta .= '<meta name="copyright" content="'.$meta_values['meta_copyright'].'" />';
}
if(!empty($meta_values['meta_description'])){
$echo_meta .= '<meta name="description" content="'.esc_attr( wp_strip_all_tags( $meta_values['meta_description'] )).'" />';
}
if(!empty($meta_values['meta_keys'])){
$echo_meta .= '<meta name="keywords" content="'.$meta_values['meta_keys'].'" />';
}
echo $echo_meta;
}
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