Removes deprecated multisite code and perfomance optimization

stodorovic · Aug 16, 2018 · 26b4074 · 26b4074
1 parent d679dc8
commit 26b4074
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Showing 3 changed files with 12 additions and 10 deletions.
diff --git a/plugins/multisite.php b/plugins/multisite.php
@@ -1,6 +1,6 @@
 <?php
 
-if ( ( defined( 'WP_ALLOW_MULTISITE' ) && constant( 'WP_ALLOW_MULTISITE' ) === true ) || defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
+if ( is_multisite() ) {
 	add_cacheaction( 'add_cacheaction', 'wp_super_cache_multisite_init' );
 }
 

diff --git a/wp-cache-phase1.php b/wp-cache-phase1.php
@@ -101,8 +101,11 @@
 	$wp_cache_gzip_encoding = gzip_accepted();
 }
 
+$wpsc_wp_gte_46 = function_exists( 'add_filter' ) && version_compare( $GLOBALS['wp_version'], '4.6', '>=' );
+
 add_cacheaction( 'supercache_filename_str', 'wp_cache_check_mobile' );
-if ( function_exists( 'add_filter' ) ) { // loaded since WordPress 4.6
+if ( $wpsc_wp_gte_46 ) {
+	// loaded since WordPress 4.6
 	add_filter( 'supercache_filename_str', 'wp_cache_check_mobile' );
 }
 
@@ -126,11 +129,7 @@
 }
 
 // WordPress 4.6 introduces action ms_loaded.
-if ( is_multisite() &&
-	empty( $wp_super_cache_late_init ) &&
-	version_compare( $wp_version, '4.6', '>=' ) &&
-	function_exists( 'add_action' )
-) {
+if ( is_multisite() && $wpsc_wp_gte_46 && empty( $wp_super_cache_late_init ) ) {
 	add_action( 'ms_loaded', 'wp_cache_serve_cache_file' );
 }
 elseif ( ! isset( $wp_super_cache_late_init ) || ( isset( $wp_super_cache_late_init ) && false == $wp_super_cache_late_init ) ) {

diff --git a/wp-cache.php b/wp-cache.php
@@ -1284,7 +1284,7 @@ function toggleLayer( whichLayer ) {
 			wp_nonce_field('wp-cache');
 			echo "</form>\n";
 
-			if ( ( defined( 'VHOST' ) || defined( 'SUBDOMAIN_INSTALL' ) || defined( 'SUNRISE' ) || ( defined( 'WP_ALLOW_MULTISITE' ) && constant( 'WP_ALLOW_MULTISITE' ) == true  ) ) && wpsupercache_site_admin() ) {
+			if ( is_multisite() && wpsupercache_site_admin() ) {
 				echo '<form name="wp_cache_content_delete" action="#listfiles" method="post">';
 				echo '<input type="hidden" name="wp_delete_all_cache" />';
 				echo '<div class="submit"><input id="deleteallpost" class="button-secondary" type="submit" ' . SUBMITDISABLED . 'value="' . __( 'Delete Cache On All Blogs', 'wp-super-cache' ) . '" /></div>';
@@ -2844,7 +2844,7 @@ function wp_cache_delete_buttons() {
 	echo '<div class="submit" style="float:left;margin-left:10px"><input id="deletepost" class="button-secondary" type="submit" ' . SUBMITDISABLED . 'value="' . __( 'Delete Cache', 'wp-super-cache' ) . '" /></div>';
 	wp_nonce_field('wp-cache');
 	echo "</form>\n";
-	if ( ( defined( 'VHOST' ) || defined( 'SUBDOMAIN_INSTALL' ) || defined( 'SUNRISE' ) || ( defined( 'WP_ALLOW_MULTISITE' ) && constant( 'WP_ALLOW_MULTISITE' ) == true ) ) && wpsupercache_site_admin() ) {
+	if ( is_multisite() && wpsupercache_site_admin() ) {
 		echo '<form name="wp_cache_content_delete" action="#listfiles" method="post">';
 		echo '<input type="hidden" name="wp_delete_all_cache" />';
 		echo '<div class="submit" style="float:left;margin-left:10px"><input id="deleteallpost" class="button-secondary" type="submit" ' . SUBMITDISABLED . 'value="' . __( 'Delete Cache On All Blogs', 'wp-super-cache' ) . '" /></div>';
@@ -2976,6 +2976,8 @@ function wp_cache_clean_legacy_files( $dir, $file_prefix ) {
 		return false;
 
 	if ( $handle = @opendir( $dir ) ) {
+		$curr_blog_id = is_multisite() ? get_current_blog_id() : false;
+
 		while ( false !== ( $file = readdir( $handle ) ) ) {
 			if ( is_file( $dir . $file ) == false || $file == 'index.html' ) {
 				continue;
@@ -2988,8 +2990,9 @@ function wp_cache_clean_legacy_files( $dir, $file_prefix ) {
 					@unlink( $dir . 'meta/' . str_replace( '.html', '.meta', $file ) );
 				} else {
 					$meta = json_decode( wp_cache_get_legacy_cache( $dir . 'meta/' . $file ), true );
-					if ( ( defined( 'VHOST' ) || defined( 'SUBDOMAIN_INSTALL' ) || defined( 'SUNRISE' ) || ( defined( 'WP_ALLOW_MULTISITE' ) && constant( 'WP_ALLOW_MULTISITE' ) == true ) ) && $meta[ 'blog_id' ] != $wpdb->blogid )
+					if ( $curr_blog_id && $curr_blog_id !== (int) $meta['blog_id'] ) {
 						continue;
+					}
 					@unlink( $dir . $file);
 					@unlink( $dir . 'meta/' . $file);
 				}