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Marcus Quinn
140
plugin-reference-cleaner.php
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140
plugin-reference-cleaner.php
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<?php
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/*
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* Plugin Name: Plugin Reference Cleaner
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* Description: Adds a "Remove Reference" button to plugin deactivation error notices, allowing users to clean up invalid plugin entries.
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* Version: 1.1
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* Author: Marcus Quinn
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* Author URI: https://wpallstars.com
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* License: GPL-2.0+
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*/
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class Plugin_Reference_Cleaner {
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public function __construct() {
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// Hook into admin notices to modify plugin error messages
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add_action('admin_notices', array($this, 'inject_remove_button'), 100);
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// Handle the AJAX request to remove the plugin reference
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add_action('wp_ajax_remove_plugin_reference', array($this, 'remove_plugin_reference'));
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}
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// Inject "Remove Reference" button only if a relevant notice exists
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public function inject_remove_button() {
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global $pagenow;
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// Only run on plugins.php or network admin plugins page
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if (!in_array($pagenow, array('plugins.php', 'network/plugins.php'))) {
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return;
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}
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// Check if a "Plugin file does not exist" notice exists
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$notices = $this->get_admin_notices();
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$has_error_notice = false;
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$plugin_files = array();
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foreach ($notices as $notice) {
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if (strpos($notice, 'has been deactivated due to an error: Plugin file does not exist') !== false) {
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// Extract plugin file from notice
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if (preg_match('/The plugin ([^ ]+)/', $notice, $match)) {
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$plugin_files[] = $match[1];
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$has_error_notice = true;
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}
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}
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}
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// Only proceed if a relevant notice was found
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if (!$has_error_notice) {
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return;
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}
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// Inject JavaScript with the specific plugin files
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?>
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<script type="text/javascript">
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document.addEventListener('DOMContentLoaded', function() {
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var pluginFiles = <?php echo json_encode($plugin_files); ?>;
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var notices = document.querySelectorAll('.notice-error p');
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notices.forEach(function(notice) {
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pluginFiles.forEach(function(pluginFile) {
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if (notice.textContent.includes('The plugin ' + pluginFile)) {
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var button = document.createElement('button');
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button.textContent = 'Remove Reference';
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button.className = 'button button-secondary remove-plugin-ref';
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button.dataset.plugin = pluginFile;
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button.style.marginLeft = '10px';
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notice.appendChild(button);
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}
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});
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});
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document.querySelectorAll('.remove-plugin-ref').forEach(function(button) {
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button.addEventListener('click', function(e) {
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e.preventDefault();
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var pluginFile = this.dataset.plugin;
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if (confirm('Are you sure you want to remove the reference to ' + pluginFile + '?')) {
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var xhr = new XMLHttpRequest();
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xhr.open('POST', '<?php echo admin_url('admin-ajax.php'); ?>', true);
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xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
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xhr.onload = function() {
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if (xhr.status === 200) {
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alert('Plugin reference removed successfully.');
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location.reload();
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} else {
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alert('Failed to remove plugin reference.');
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}
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};
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xhr.send('action=remove_plugin_reference&plugin=' + encodeURIComponent(pluginFile) + '&nonce=<?php echo wp_create_nonce('remove_plugin_reference'); ?>');
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}
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});
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});
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});
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</script>
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<?php
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}
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// Helper function to capture admin notices
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private function get_admin_notices() {
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ob_start();
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do_action('admin_notices');
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$output = ob_get_clean();
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return array_filter(explode("\n", $output));
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}
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// Handle the AJAX request to remove the plugin reference
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public function remove_plugin_reference() {
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if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'remove_plugin_reference')) {
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wp_send_json_error('Invalid nonce');
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wp_die();
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}
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if (!current_user_can('activate_plugins')) {
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wp_send_json_error('Insufficient permissions');
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wp_die();
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}
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$plugin_file = isset($_POST['plugin']) ? sanitize_text_field($_POST['plugin']) : '';
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if (empty($plugin_file)) {
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wp_send_json_error('No plugin specified');
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wp_die();
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}
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if (is_multisite() && is_network_admin()) {
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$active_plugins = get_site_option('active_sitewide_plugins', array());
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if (isset($active_plugins[$plugin_file])) {
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unset($active_plugins[$plugin_file]);
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update_site_option('active_sitewide_plugins', $active_plugins);
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}
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} else {
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$site_id = get_current_blog_id();
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$active_plugins = get_blog_option($site_id, 'active_plugins', array());
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$key = array_search($plugin_file, $active_plugins);
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if ($key !== false) {
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unset($active_plugins[$key]);
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$active_plugins = array_values($active_plugins);
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update_blog_option($site_id, 'active_plugins', $active_plugins);
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}
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}
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wp_send_json_success('Plugin reference removed');
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wp_die();
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}
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}
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new Plugin_Reference_Cleaner();
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