wpallstars/wp-fix-plugin-does-not-exist-notices
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Improved plugin security and compatibility

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This commit is contained in:
Marcus Quinn
2025-04-07 05:17:37 +01:00
parent 57e63ff55e
commit 14b1434c65
1 changed files with 68 additions and 23 deletions
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91
plugin-reference-cleaner.php
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@ -8,10 +8,16 @@
* License: GPL-2.0+ * License: GPL-2.0+
*/ */
// Exit if accessed directly
if (!defined('ABSPATH')) {
exit;
}
class Plugin_Reference_Cleaner { class Plugin_Reference_Cleaner {
public function __construct() { public function __construct() {
// Hook into admin notices to modify plugin error messages // Hook into admin notices to modify plugin error messages
add_action('admin_notices', array($this, 'inject_remove_button'), 100); add_action('admin_notices', array($this, 'inject_remove_button'), 100);
add_action('network_admin_notices', array($this, 'inject_remove_button'), 100); // Ensure notices in network admin
// Handle the AJAX request to remove the plugin reference // Handle the AJAX request to remove the plugin reference
add_action('wp_ajax_remove_plugin_reference', array($this, 'remove_plugin_reference')); add_action('wp_ajax_remove_plugin_reference', array($this, 'remove_plugin_reference'));
} }
@ -21,7 +27,7 @@ class Plugin_Reference_Cleaner {
global $pagenow; global $pagenow;
// Only run on plugins.php or network admin plugins page // Only run on plugins.php or network admin plugins page
if (!in_array($pagenow, array('plugins.php', 'network/plugins.php'))) { if (!in_array($pagenow, array('plugins.php', 'plugins.php'))) {
return; return;
} }
@ -30,18 +36,20 @@ class Plugin_Reference_Cleaner {
$has_error_notice = false; $has_error_notice = false;
$plugin_files = array(); $plugin_files = array();
foreach ($notices as $notice) { if (!empty($notices)) {
if (strpos($notice, 'has been deactivated due to an error: Plugin file does not exist') !== false) { foreach ($notices as $notice) {
// Extract plugin file from notice if (strpos($notice, 'has been deactivated due to an error: Plugin file does not exist') !== false) {
if (preg_match('/The plugin ([^ ]+)/', $notice, $match)) { // Extract plugin file from notice
$plugin_files[] = $match[1]; if (preg_match('/The plugin ([^ ]+)/', $notice, $match)) {
$has_error_notice = true; $plugin_files[] = $match[1];
$has_error_notice = true;
}
} }
} }
} }
// Only proceed if a relevant notice was found // Only proceed if a relevant notice was found
if (!$has_error_notice) { if (!$has_error_notice || empty($plugin_files)) {
return; return;
} }
@ -49,8 +57,13 @@ class Plugin_Reference_Cleaner {
?> ?>
<script type="text/javascript"> <script type="text/javascript">
document.addEventListener('DOMContentLoaded', function() { document.addEventListener('DOMContentLoaded', function() {
var pluginFiles = <?php echo json_encode($plugin_files); ?>; var pluginFiles = <?php echo wp_json_encode($plugin_files); ?>;
var notices = document.querySelectorAll('.notice-error p'); var notices = document.querySelectorAll('.notice-error p');
if (notices.length === 0) {
return;
}
notices.forEach(function(notice) { notices.forEach(function(notice) {
pluginFiles.forEach(function(pluginFile) { pluginFiles.forEach(function(pluginFile) {
if (notice.textContent.includes('The plugin ' + pluginFile)) { if (notice.textContent.includes('The plugin ' + pluginFile)) {
@ -70,16 +83,29 @@ class Plugin_Reference_Cleaner {
var pluginFile = this.dataset.plugin; var pluginFile = this.dataset.plugin;
if (confirm('Are you sure you want to remove the reference to ' + pluginFile + '?')) { if (confirm('Are you sure you want to remove the reference to ' + pluginFile + '?')) {
var xhr = new XMLHttpRequest(); var xhr = new XMLHttpRequest();
xhr.open('POST', '<?php echo admin_url('admin-ajax.php'); ?>', true); xhr.open('POST', '<?php echo esc_url(admin_url('admin-ajax.php')); ?>', true);
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.onload = function() { xhr.onload = function() {
if (xhr.status === 200) { if (xhr.status === 200) {
alert('Plugin reference removed successfully.'); try {
location.reload(); var response = JSON.parse(xhr.responseText);
if (response.success) {
alert('Plugin reference removed successfully.');
location.reload();
} else {
alert('Failed to remove plugin reference: ' + (response.data || 'Unknown error'));
}
} catch (e) {
alert('Failed to parse server response.');
console.error(e);
}
} else { } else {
alert('Failed to remove plugin reference.'); alert('Failed to remove plugin reference. Server returned status ' + xhr.status);
} }
}; };
xhr.onerror = function() {
alert('Network error occurred while trying to remove plugin reference.');
};
xhr.send('action=remove_plugin_reference&plugin=' + encodeURIComponent(pluginFile) + '&nonce=<?php echo wp_create_nonce('remove_plugin_reference'); ?>'); xhr.send('action=remove_plugin_reference&plugin=' + encodeURIComponent(pluginFile) + '&nonce=<?php echo wp_create_nonce('remove_plugin_reference'); ?>');
} }
}); });
@ -93,48 +119,67 @@ class Plugin_Reference_Cleaner {
private function get_admin_notices() { private function get_admin_notices() {
ob_start(); ob_start();
do_action('admin_notices'); do_action('admin_notices');
do_action('network_admin_notices');
$output = ob_get_clean(); $output = ob_get_clean();
if (empty($output)) {
return array();
}
return array_filter(explode("\n", $output)); return array_filter(explode("\n", $output));
} }
// Handle the AJAX request to remove the plugin reference // Handle the AJAX request to remove the plugin reference
public function remove_plugin_reference() { public function remove_plugin_reference() {
// Verify nonce
if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'remove_plugin_reference')) { if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'remove_plugin_reference')) {
wp_send_json_error('Invalid nonce'); wp_send_json_error('Invalid security token. Please refresh the page and try again.');
wp_die(); wp_die();
} }
// Check user permissions
if (!current_user_can('activate_plugins')) { if (!current_user_can('activate_plugins')) {
wp_send_json_error('Insufficient permissions'); wp_send_json_error('You do not have sufficient permissions to perform this action.');
wp_die(); wp_die();
} }
// Get and validate plugin file parameter
$plugin_file = isset($_POST['plugin']) ? sanitize_text_field($_POST['plugin']) : ''; $plugin_file = isset($_POST['plugin']) ? sanitize_text_field($_POST['plugin']) : '';
if (empty($plugin_file)) { if (empty($plugin_file)) {
wp_send_json_error('No plugin specified'); wp_send_json_error('No plugin specified.');
wp_die(); wp_die();
} }
$success = false;
// Handle multisite network admin
if (is_multisite() && is_network_admin()) { if (is_multisite() && is_network_admin()) {
$active_plugins = get_site_option('active_sitewide_plugins', array()); $active_plugins = get_site_option('active_sitewide_plugins', array());
if (isset($active_plugins[$plugin_file])) { if (isset($active_plugins[$plugin_file])) {
unset($active_plugins[$plugin_file]); unset($active_plugins[$plugin_file]);
update_site_option('active_sitewide_plugins', $active_plugins); $success = update_site_option('active_sitewide_plugins', $active_plugins);
} }
} else { }
$site_id = get_current_blog_id(); // Handle single site or multisite subsite
$active_plugins = get_blog_option($site_id, 'active_plugins', array()); else {
$active_plugins = get_option('active_plugins', array());
$key = array_search($plugin_file, $active_plugins); $key = array_search($plugin_file, $active_plugins);
if ($key !== false) { if ($key !== false) {
unset($active_plugins[$key]); unset($active_plugins[$key]);
$active_plugins = array_values($active_plugins); $active_plugins = array_values($active_plugins); // Re-index array
update_blog_option($site_id, 'active_plugins', $active_plugins); $success = update_option('active_plugins', $active_plugins);
} }
} }
wp_send_json_success('Plugin reference removed'); if ($success) {
wp_send_json_success('Plugin reference removed successfully.');
} else {
wp_send_json_error('Plugin reference not found or could not be removed.');
}
wp_die(); wp_die();
} }
} }
// Initialize the plugin
new Plugin_Reference_Cleaner(); new Plugin_Reference_Cleaner();