installed plugin Subscribe2 version 10.35

wp-content/plugins/subscribe2/classes/class-s2-uninstall.php

@@ -0,0 +1,52 @@
+<?php
+class S2_Uninstall {
+	public function uninstall() {
+		global $wp_version, $wpmu_version;
+		// Is Subscribe2 free active
+		if ( is_plugin_active( 'subscribe2/subscribe2.php' ) ) {
+			return;
+		}
+
+		// Is this WordPressMU or not?
+		if ( isset( $wpmu_version ) || strpos( $wp_version, 'wordpress-mu' ) ) {
+			$s2_mu = true;
+		}
+		if ( function_exists( 'is_multisite' ) && is_multisite() ) {
+			$s2_mu = true;
+		}
+
+		if ( isset( $s2_mu ) && true === $s2_mu ) {
+			global $wpdb;
+			$blogs = $wpdb->get_col( "SELECT blog_id FROM {$wpdb->blogs}" );
+			foreach ( $blogs as $blog ) {
+				switch_to_blog( $blog );
+				$this->clean_database();
+				restore_current_blog();
+			}
+		} else {
+			$this->clean_database();
+		}
+	}
+
+	private function clean_database() {
+		global $wpdb;
+		// delete entry from wp_options table
+		delete_option( 'subscribe2_options' );
+		// delete legacy entry from wp-options table
+		delete_option( 's2_future_posts' );
+		// remove and scheduled events
+		wp_clear_scheduled_hook( 's2_digest_cron' );
+		// delete usermeta data for registered users
+		// use LIKE and % wildcard as meta_key names are prepended on WPMU
+		// and s2_cat is appended with category ID integer
+		$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_cat%'" );
+		$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_subscribed'" );
+		$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_format'" );
+		$wpdb->query( "DELETE from $wpdb->usermeta WHERE meta_key LIKE '%s2_autosub'" );
+		// delete any postmeta data that supressed notifications
+		$wpdb->query( "DELETE from $wpdb->postmeta WHERE meta_key = 's2mail'" );
+
+		// drop the subscribe2 table
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}subscribe2" );
+	}
+}