Version: 1.0
Author URI: https://www.html5arena.com/
*/
/* Arena Minification - The function below will perform basic html minification. */
function arena_minify_html($buf)
{
if (!is_admin() && get_option('ha_minify_html',false) == true)
{
$search = array(
'/\>[^\S ]+/s',
'/[^\S ]+\',
'<',
'\\1'
);
if (preg_match("/\/i",$buf) == 1)
{
$buf = preg_replace($search, $replace, $buf);
}
}
return $buf;
}
ob_start("arena_minify_html");
/* Arena Expired Headers - The function below will add expired headers to .htaccess file */
function arena_expired_headers()
{
$file = ABSPATH . ".htaccess";
$current = file_get_contents($file);
if (strpos($current,"# BEGIN - Arena") === false)
{ if (get_option('ha_expired_headers') == true)
{
$current .= "\n" . '# BEGIN - Arena SEO'."\n".'' . "\n" . '
ExpiresActive on ' . "\n" . '
ExpiresDefault "access plus 1 month"' . "\n" . '
ExpiresByType image/gif "access plus 1 month"' . "\n" . '
ExpiresByType image/png "access plus 1 month"' . "\n" . '
ExpiresByType image/jpg "access plus 1 month"' . "\n" . '
ExpiresByType image/jpeg "access plus 1 month"' . "\n" . '
ExpiresByType text/html "access plus 3 days"' . "\n" . '
ExpiresByType text/xml "access plus 1 seconds"' . "\n" . '
ExpiresByType text/plain "access plus 1 seconds"' . "\n" . '
ExpiresByType application/xml "access plus 1 seconds"' . "\n" . '
ExpiresByType application/rss+xml "access plus 1 seconds"' . "\n" . '
ExpiresByType application/json "access plus 1 seconds"' . "\n" . '
ExpiresByType text/css "access plus 1 week"' . "\n" . '
ExpiresByType text/javascript "access plus 1 week"' . "\n" . '
ExpiresByType application/javascript "access plus 1 week"' . "\n" . '
ExpiresByType application/x-javascript "access plus 1 week"' . "\n" . '
ExpiresByType image/x-ico "access plus 1 year"' . "\n" . '
ExpiresByType image/x-icon "access plus 1 year"' . "\n" . '
ExpiresByType application/pdf "access plus 1 month"' . "\n" . '
' . "\n" . '
Header append Cache-Control "public, no-transform, must-revalidate"' . "\n" . '
' . "\n" . '
' . "\n" . '#END - Arena SEO';
file_put_contents($file, $current);
}
} else
{
$beginpos = strpos($current,'# BEGIN - Arena SEO');
$endpos = strpos ($current,'#END - Arena SEO');
$currentstart = substr($current,0,$beginpos);
$currentend = substr ($current,$endpos + 16);
file_put_contents($file, $currentstart . $currentend);
}
}
// Arena SEO Sitemap Generator
add_action( "save_post", "arena_create_sitemap" );
function arena_create_sitemap()
{
if (get_option('ha_sitemap') == false && get_option('ha_sitemap_pages') == false)
{
unlink ( ABSPATH . "sitemap.xml" );
return;
}
$ptype = array ('');
if (get_option('ha_sitemap') == true)
$ptype[] = 'post';
if (get_option('ha_sitemap_pages') == true)
$ptype[] = 'page';
if ( str_replace( '-', '', get_option( 'gmt_offset' ) ) < 10 ) {
$tempo = '-0' . str_replace( '-', '', get_option( 'gmt_offset' ) );
} else {
$tempo = get_option( 'gmt_offset' );
}
if( strlen( $tempo ) == 3 ) { $tempo = $tempo . ':00'; }
$postsForSitemap = get_posts( array(
'numberposts' => -1,
'orderby' => 'modified',
'post_type' => $ptype,
'order' => 'DESC'
) );
$sitemap .= '' . '';
$sitemap .= "\n" . '' . "\n";
$sitemap .= "\t" . '' . "\n" .
"\t\t" . '' . esc_url( home_url( '/' ) ) . '' .
"\n\t\t" . '' . date( "Y-m-d\TH:i:s", current_time( 'timestamp', 0 ) ) . $tempo . '' .
"\n\t\t" . 'daily' .
"\n\t\t" . '1.0' .
"\n\t" . '' . "\n";
foreach( $postsForSitemap as $post ) {
setup_postdata( $post);
$postdate = explode( " ", $post->post_modified );
$sitemap .= "\t" . '' . "\n" .
"\t\t" . '' . get_permalink( $post->ID ) . '' .
"\n\t\t" . '' . $postdate[0] . 'T' . $postdate[1] . $tempo . '' .
"\n\t\t" . 'Weekly' .
"\n\t\t" . '0.5' .
"\n\t" . '' . "\n";
}
$sitemap .= '';
$fp = fopen( ABSPATH . "sitemap.xml", 'w' );
fwrite( $fp, $sitemap );
fclose( $fp );
}
//Arena SEO Ad Injection - This function will inject ads code after the content.
add_filter( 'the_content', 'arena_insert_post_ads_bottom' );
function arena_insert_post_ads_bottom( $content )
{
$adsense_code = get_option ('ha_adsense_code_content_bottom');
if ($adsense_code !== '' && is_single() && ! is_admin() ) {
return $content . $adsense_code;
}
return $content;
}
//Arena SEO Ad Injection - This function will inject ads code after number of paragraphs of post content.
add_filter( 'the_content', 'arena_insert_post_ads' );
function arena_insert_post_ads( $content )
{
$adsense_code = get_option ('ha_adsense_code_content_head');
$pnum = get_option ('ha_adsense_code_content_head_pnum',2);
if ($adsense_code !== '' && is_single() && ! is_admin() ) {
return arena_insert_after_paragraph( $adsense_code, $pnum, $content );
}
return $content;
}
function arena_insert_after_paragraph( $insertion, $paragraph_id, $content ) {
$closing_p = '';
$paragraphs = explode( $closing_p, $content );
foreach ($paragraphs as $index => $paragraph) {
if ( trim( $paragraph ) ) {
$paragraphs[$index] .= $closing_p;
}
if ( $paragraph_id == $index + 1 ) {
$paragraphs[$index] .= $insertion;
}
}
return implode( '', $paragraphs );
}
/* Add analytics coe to footer */
add_action('wp_footer', 'ha_analytics_footer', 100);
function ha_analytics_footer()
{
if (!is_admin())
{
$analytics_code = get_option ('ha_analytics_code');
if ($analytics_code !== '')
echo $analytics_code;
}
}
/* Move jQuery to the footer */
add_action( 'wp_enqueue_scripts', 'arena_enqueue_jq_to_footer' );
function arena_enqueue_jq_to_footer()
{
if (!is_admin() && get_option('ha_jq_to_footer',false) == true)
{
wp_enqueue_script( 'jquery' );
}
}
/* Remove default twenty seventeen font */
add_action( 'wp_enqueue_scripts', 'arena_enqueue_twentyseventeen_fonts',20 );
function arena_enqueue_twentyseventeen_fonts()
{
if (get_option('ha_remove_gfonts',false) == true)
{
wp_dequeue_style( 'twentyseventeen-fonts' );
wp_deregister_style( 'twentyseventeen-fonts' );
}
}
/* Remove Query String From Resources */
function arena_remove_script_version( $src )
{
if (is_admin())
return $src;
if (get_option('ha_remove_qstring',true) == false)
return $src;
if (strpos($src,"font") > 0)
return $src;
$parts = explode( '?', $src );
return $parts[0];
}
add_filter( 'script_loader_src', 'arena_remove_script_version', 15, 1 );
add_filter( 'style_loader_src', 'arena_remove_script_version', 15, 1 );
/* Filter title string */
function arena_filter_wp_title( $title ) {
global $paged, $page,$post;
if ( is_feed() )
return $title;
$meta_title_value = '';
if (is_single()) {$meta_title_value=get_post_meta( $post->ID, 'ha_post_meta_title', true );}
if ($meta_title_value !== '')
$title = $meta_title_value;
return $title;
}
add_filter( 'pre_get_document_title', 'arena_filter_wp_title', 10, 2 );
/* Add meta for posts and pages */
function arena_add_meta_tags()
{
global $post;
if ( is_single() ) {
$meta_desc_value = get_post_meta( $post->ID, 'ha_post_description', true );
$meta_out = '';
if ($meta_desc_value !== '')
{
$meta_out = '' . "\n";
}
$meta_keywords_value = get_post_meta( $post->ID, 'ha_post_keywords', true );
if ($meta_keywords_value !== '')
{
$meta_out .='' . "\n";
}
$meta_noindex_value = get_post_meta( $post->ID, 'ha_post_noindex', true );
if ($meta_noindex_value == 'true')
$meta_out = '';
echo $meta_out;
}
if (is_page())
{
$meta_out = '';
$meta_desc_value = get_post_meta( $post->ID, 'ha_post_description', true );
if ($meta_desc_value !== '')
{
$meta_out = '' . "\n";
}
$meta_keywords_value = get_post_meta( $post->ID, 'ha_post_keywords', true );
if ($meta_keywords_value !== '')
{
$meta_out .='' . "\n";
}
$meta_noindex_value = get_post_meta( $post->ID, 'ha_post_noindex', true );
if ($meta_noindex_value == 'true')
$meta_out = '';
echo $meta_out;
} else if (is_home()) {
$blog_id = get_option( 'page_for_posts' );
$meta_desc_value = get_post_meta( $blog_id, 'ha_post_description', true );
if ($meta_desc_value !== '')
{
echo '' . "\n";
}
}
if (get_option('ha_wmt_code') !== '')
echo get_option('ha_wmt_code');
}
add_action( 'wp_head', 'arena_add_meta_tags' , 2 );
/* Add NOINDEX meta in author pages, category pages and tag pages */
function arena_add_meta_noindex()
{
$opt_author_noindex = get_option('ha_noindex_author',true) ;
$opt_cat_noindex = get_option('ha_noindex_category',true) ;
$opt_tag_noindex = get_option('ha_noindex_tag',true) ;
if ( (is_author() && $opt_author_noindex == true)
|| (is_tag() && $opt_tag_noindex == true)
|| (is_category() && $opt_cat_noindex == true))
{
echo '';
}
}
add_action( 'wp_head', 'arena_add_meta_noindex' , 4 );
/* Display the post meta box. */
function arena_post_description_meta_box( $object, $box ) { ?>
ID, 'ha_post_description', true ) ); ?>
ID, 'ha_post_noindex', true ) ) ) echo ' checked '; ?> size="30" />
post_type );
if ( !current_user_can( $post_type->cap->edit_post, $post_id ) )
return $post_id;
/* Sanitize posted data to be used as HTML. */
$new_meta_value = ( isset( $_POST['ha-post-description'] ) ? sanitize_text_field( $_POST['ha-post-description'] ) : '' );
$new_meta_title_value = ( isset( $_POST['ha-post-meta-title'] ) ? sanitize_text_field( $_POST['ha-post-meta-title'] ) : '' );
$new_meta_keywords_value = ( isset( $_POST['ha-post-keywords'] ) ? sanitize_text_field( $_POST['ha-post-keywords'] ) : '' );
$new_redirect_value = ( isset( $_POST['ha-post-redirect'] ) ? sanitize_text_field( $_POST['ha-post-redirect'] ) : '' );
$new_noindex_value = ( isset( $_POST['ha-post-noindex'] ) ? 'true' : '' );
/* Get the meta keys. */
$meta_key = 'ha_post_description';
$meta_keywords_key = 'ha_post_keywords';
$meta_title_key = 'ha_post_meta_title';
$redirect_key = 'ha_post_redirect';
$noindex_key = 'ha_post_noindex';
/* Get the meta value of the custom field key. */
$meta_value = get_post_meta( $post_id, $meta_key, true );
$meta_title_value = get_post_meta( $post_id, $meta_title_key, true );
$redirect_value = get_post_meta( $post_id, $redirect_key, true);
$meta_keywords_value = get_post_meta( $post_id, $meta_keywords_key, true);
$noindex_value = get_post_meta( $post_id, $noindex_key, true);
/* Update no index */
if ( $new_noindex_value && '' == $noindex_value )
add_post_meta( $post_id, $noindex_key, $new_noindex_value, true );
elseif ( $new_noindex_value && $new_noindex_value != $noindex_value )
update_post_meta( $post_id, $noindex_key, $new_noindex_value );
elseif ( '' == $new_noindex_value && $noindex_value )
delete_post_meta( $post_id, $noindex_key, $noindex_value );
/* Update meta description value */
if ( $new_meta_value && '' == $meta_value )
add_post_meta( $post_id, $meta_key, $new_meta_value, true );
elseif ( $new_meta_value && $new_meta_value != $meta_value )
update_post_meta( $post_id, $meta_key, $new_meta_value );
elseif ( '' == $new_meta_value && $meta_value )
delete_post_meta( $post_id, $meta_key, $meta_value );
/* Update meta title value */
if ( $new_meta_title_value && '' == $meta_title_value )
add_post_meta( $post_id, $meta_title_key, $new_meta_title_value, true );
elseif ( $new_meta_title_value && $new_meta_title_value != $meta_title_value )
update_post_meta( $post_id, $meta_title_key, $new_meta_title_value );
elseif ( '' == $new_meta_title_value && $meta_title_value )
delete_post_meta( $post_id, $meta_title_key, $meta_title_value );
/* Update redirection values */
if ( $new_redirect_value && '' == $redirect_value )
add_post_meta( $post_id, $redirect_key, $new_redirect_value, true );
elseif ( $new_redirect_value && $new_redirect_value != $redirect_value )
update_post_meta( $post_id, $redirect_key, $new_redirect_value );
elseif ( '' == $new_redirect_value && $redirect_value )
delete_post_meta( $post_id, $redirect_key, $redirect_value );
/* Update meta keywords value */
if ( $new_meta_keywords_value && '' == $meta_keywords_value )
add_post_meta( $post_id, $meta_keywords_key, $new_meta_keywords_value, true );
elseif ( $new_meta_keywords_value && $new_meta_keywords_value != $meta_keywords_value )
update_post_meta( $post_id, $meta_keywords_key, $new_meta_keywords_value );
elseif ( '' == $new_meta_keywords_value && $meta_keywords_value )
delete_post_meta( $post_id, $meta_keywords_key, $meta_keywords_value );
}
/* Add arena meta boxes setup function. */
function arena_post_meta_boxes_setup()
{
add_action( 'add_meta_boxes', 'arena_add_post_meta_boxes' );
add_action( 'save_post', 'arena_save_post_class_meta', 10, 2 );
}
/* Invoke arena meta boxes setup when lanuching post editor. */
add_action( 'load-page.php', 'arena_post_meta_boxes_setup' );
add_action( 'load-post.php', 'arena_post_meta_boxes_setup' );
add_action( 'load-post-new.php', 'arena_post_meta_boxes_setup' );
add_action( 'load-page-new.php', 'arena_post_meta_boxes_setup' );
/* REDIRECT */
/* The function below will redirect any media attachment pages back to their parent post. */
/* If there is no parent post then the page will be redirect to the root */
/* Media pages redirection can be disabled via options */
/* Regular pages or posts will be redirected according to their meta field, if defined */
function arena_custom_redirect ()
{
global $post;
if (is_attachment())
{
$opt_redirect_media = get_option('ha_redirect_media',true);
if ($opt_redirect_media == true)
{
$perma = '';
$perma = get_permalink($post->post_parent);
if ($perma !== '')
wp_redirect($perma);
else
wp_redirect('/');
exit;
}
}
if (is_page() || is_single()) {
if ( $redirect = get_post_meta($post->ID, 'ha_post_redirect', true ) ) {
wp_redirect( $redirect );
exit;
}
}
}
add_action( 'get_header', 'arena_custom_redirect' );
add_filter( 'plugin_action_links_' . plugin_basename(__FILE__), 'arena_add_action_links' );
function arena_add_action_links ( $links )
{
$ha_links = array('Settings');
return array_merge( $links, $ha_links );
}
include( plugin_dir_path( __FILE__ ) . "options.php");
?>