Block self-pings and custom ping URLs

Author: ajaydsouza

README.md

@@ -38,6 +38,7 @@ _Auto-Close_ is a WordPress plugin that _automatically closes comments, pingback
 - _Automatically close_ comments, pingbacks, and trackbacks on posts, pages, and custom post types
 - _Open or close_ comments/pingbacks/trackbacks selectively by post ID
 - _Schedule_ automatic closing using WordPress cron
+- _Block self-pings and custom ping URLs_
 - _Delete or limit_ post revisions by type
 - _Manual tools_ for opening/closing and deleting
 - _Admin interface_ with settings and tools tabs

includes/admin/class-settings.php

@@ -308,35 +308,50 @@ public static function settings_comments() {
 	 */
 	public static function settings_pingtracks() {
 		$settings = array(
-			'close_pbtb'      => array(
+			'close_pbtb'       => array(
 				'id'      => 'close_pbtb',
 				'name'    => esc_html__( 'Close Pingbacks/Trackbacks', 'autoclose' ),
 				'desc'    => esc_html__( 'Enable to close pingbacks and trackbacks - used for the automatic schedule as well as one time runs under the Tools tab.', 'autoclose' ),
 				'type'    => 'checkbox',
 				'options' => false,
 			),
-			'pbtb_post_types' => array(
+			'pbtb_post_types'  => array(
 				'id'      => 'pbtb_post_types',
 				'name'    => esc_html__( 'Post types to include', 'autoclose' ),
 				'desc'    => esc_html__( 'At least one option should be selected above. Select which post types on which you want pingbacks/trackbacks closed.', 'autoclose' ),
 				'type'    => 'posttypes',
 				'options' => 'post',
 			),
-			'pbtb_age'        => array(
+			'pbtb_age'         => array(
 				'id'      => 'pbtb_age',
 				'name'    => esc_html__( 'Close pingbacks/trackbacks on posts/pages older than', 'autoclose' ),
 				'desc'    => esc_html__( 'Pingbacks/Trackbacks that are older than the above number, in days, will be closed automatically if the schedule is enabled', 'autoclose' ),
 				'type'    => 'number',
 				'options' => '90',
 			),
-			'pbtb_pids'       => array(
+			'pbtb_pids'        => array(
 				'id'      => 'pbtb_pids',
 				'name'    => esc_html__( 'Keep pingbacks/trackbacks on these posts/pages open', 'autoclose' ),
 				'desc'    => esc_html__( 'Comma-separated list of post, page or custom post type IDs. e.g. 188,320,500', 'autoclose' ),
 				'type'    => 'numbercsv',
 				'options' => '',
 				'size'    => 'large',
 			),
+			'block_self_pings' => array(
+				'id'      => 'block_self_pings',
+				'name'    => esc_html__( 'Block Self-Pings', 'autoclose' ),
+				'desc'    => esc_html__( 'Enable to block self-pings (pings to your own site).', 'autoclose' ),
+				'type'    => 'checkbox',
+				'options' => true,
+			),
+			'block_ping_urls'  => array(
+				'id'      => 'block_ping_urls',
+				'name'    => esc_html__( 'Block Ping URLs', 'autoclose' ),
+				'desc'    => esc_html__( 'Enter one URL per line. Pings to any of these URLs will be blocked in addition to self-pings.', 'autoclose' ),
+				'type'    => 'textarea',
+				'options' => '',
+				'size'    => 'large',
+			),
 		);
 
 		/**

includes/class-autoclose.php

@@ -114,15 +114,19 @@ private function define_admin_hooks() {
 	 * @since 3.0.0
 	 */
 	private function define_feature_hooks() {
-		$comments  = new Features\Comments();
-		$revisions = new Features\Revisions();
+		$comments    = new Features\Comments();
+		$revisions   = new Features\Revisions();
+		$block_pings = new Features\Block_Pings();
 
 		// Register cron hooks.
 		$this->loader->add_action( 'acc_cron_hook', $comments, 'process_comments' );
 		$this->loader->add_action( 'acc_cron_hook', $revisions, 'process_revisions' );
 
 		// Register revisions hooks.
 		$this->loader->add_filter( 'wp_revisions_to_keep', $revisions, 'revisions_to_keep', 999999, 2 );
+
+		// Register ping hooks.
+		$this->loader->add_action( 'pre_ping', $block_pings, 'block_pings' );
 	}
 
 	/**

includes/features/class-block-pings.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * Block Self-Pings and Custom Ping URLs
+ *
+ * @since      3.0.0
+ * @package    AutoClose
+ */
+
+namespace WebberZone\AutoClose\Features;
+
+use WebberZone\AutoClose\Utilities\Options;
+
+if ( ! defined( 'WPINC' ) ) {
+	die;
+}
+
+/**
+ * Class Block_Pings
+ *
+ * Blocks self-pings and user-defined URLs from receiving pings.
+ *
+ * @since 3.0.0
+ */
+class Block_Pings {
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+	}
+
+	/**
+	 * Remove self-pings and user-defined URLs from ping list.
+	 *
+	 * @param array $links List of ping URLs (passed by reference).
+	 *
+	 * @since 3.0.0
+	 */
+	public function block_pings( &$links ) {
+		$home = home_url();
+
+		// Retrieve user-defined blocked URLs and self-ping setting using the Options utility class.
+		$block_self_pings = Options::get_option( 'block_self_pings', true );
+		$extra_urls       = Options::get_option( 'block_ping_urls', '' );
+
+		$url_array = array_filter( array_map( 'trim', explode( PHP_EOL, $extra_urls ) ) );
+
+		foreach ( $links as $l => $link ) {
+			if ( $block_self_pings && 0 === strpos( $link, $home ) ) {
+				unset( $links[ $l ] );
+				continue;
+			}
+			foreach ( $url_array as $url ) {
+				if ( '' !== $url && 0 === strpos( $link, $url ) ) {
+					unset( $links[ $l ] );
+					break;
+				}
+			}
+		}
+	}
+}

readme.txt

@@ -27,6 +27,7 @@ Found a bug or want to contribute? PRs and issues welcome on [GitHub](https://gi
 * Schedule a cron job to automatically close comments, pingbacks and trackbacks daily
 * Delete all post revisions or limit the number of revisions by post type
 * Exclude specific post IDs from auto-close
+* Block self-pings and custom ping URLs
 
 == Screenshots ==
 
@@ -72,6 +73,9 @@ Release post: https://webberzone.com/blog/auto-close-v3-0-0/
 
 Completely rewritten the plugin to use autoloading, namespaces and classes.
 
+* Features:
+    * Added block ping URLs feature.
+
 * Bug fixes:
     * Fixed PHP error/warnings about loading translations too early.