| Current Path : /storage/v11800/shoptimizer-latest/public_html/wp-content/mu-plugins/ |
Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
|
| Current File : /storage/v11800/shoptimizer-latest/public_html/wp-content/mu-plugins/index-wp-mysql-for-speed-update-filter.php |
<?php
/** Plugin Name: Index WP MySQL For Speed Upgrade Filter for mu-plugins.
* Description: Prevents version upgrades from changing database table keys. Installed during activation, removed during deactivation.
* Version: 1.4.15
* License: GPL v2 or later
*/
namespace index_wp_mysql_for_speed;
if ( ! defined( 'ABSPATH' ) ) {
die( 'We\'re sorry, but you can not directly access this file.' );
}
/* this filter needs to be called during version upgrades, when ordinary plugins aren't loaded. */
add_filter( 'dbdelta_queries', 'index_wp_mysql_for_speed\upgrade_filter', 10, 1 );
/** Filters the dbDelta SQL queries.
*
* This replaces WordPress's standard table definition, including keys,
* with the actual definition in place. That prevents the upgrade from
* attempting to change keys that might have been added.
*
* This is crude: if WordPress attempts to add new columns or keys,
* this will ignore them. It needs work.
*
* @param string[] $queries An array of dbDelta SQL queries.
* @since 3.3.0
*
* @see WP_Upgrader::create_lock()
*
*/
function upgrade_filter( $queries ) {
/* we want to do nothing here UNLESS WE'RE SURE a core update is in progress. */
$lock_option = 'core_updater.lock';
$lock_result = get_option( $lock_option );
/* no lock option found? we're not doing a core update, so bail */
if ( ! $lock_result ) {
return $queries;
}
/* Check to see if the lock is still valid. If it isn't, bail. */
if ( $lock_result <= ( time() - ( 15 * MINUTE_IN_SECONDS ) ) ) {
return $queries;
}
global $wpdb;
$tablenames = [ 'termmeta', 'commentmeta', 'comments', 'options', 'postmeta', 'posts', 'users', 'usermeta' ];
$tablesToHandle = array();
foreach ( $tablenames as $tablename ) {
$tablesToHandle[ $wpdb->prefix . $tablename ] = 1;
}
if ( is_string( $wpdb->base_prefix ) ) {
foreach ( $tablenames as $tablename ) {
$tablesToHandle[ $wpdb->base_prefix . $tablename ] = 1;
}
}
$doSomething = false;
/* do any of the queries relate to rekeyed tables? If not, bail. */
foreach ( $queries as $query ) {
if ( preg_match( '/CREATE TABLE[[:space:]]+/S', $query ) ) {
$table = table_name( $query );
if ( array_key_exists( $table, $tablesToHandle ) ) {
$doSomething = true;
break;
}
}
}
/* bail unless it's one or more of our tables */
if ( ! $doSomething ) {
return $queries;
}
/* A core update is in progress (the lock is valid). */
$results = [];
foreach ( $queries as $query ) {
$resultQuery = $query;
if ( preg_match( '/CREATE TABLE[[:space:]]+/S', $query ) ) {
$table = table_name( $query );
if ( array_key_exists( $table, $tablesToHandle ) ) {
/* get the present table definition without backticks */
$suppress = $wpdb->suppress_errors( true );
$resultQuery = $wpdb->get_row( "SHOW CREATE TABLE $table;", ARRAY_N );
$wpdb->suppress_errors( $suppress );
if ( is_array( $resultQuery ) && 2 === count( $resultQuery ) && is_string( $resultQuery[1] ) ) {
$resultQuery = $resultQuery[1];
$resultQuery = preg_replace( '/`([0-9a-zA-Z_]+)`/msS', '$1', $resultQuery );
$resultQuery = preg_replace( '/[[:space:]]+AUTO_INCREMENT=\d+[[:space:]]+/msS', ' ', $resultQuery );
}
}
}
$results [] = $resultQuery;
}
return $results;
}
function table_name( $query ) {
/* Get the name of the table involved here. Strip backticks, extract table name. */
$query = preg_replace( '/`([0-9a-zA-Z_]+)`/msS', '$1', $query );
return preg_replace( '/^[[:space:]]*CREATE TABLE[[:space:]]+([0-9a-zA-Z_]+).*$/msS', '$1', $query );
}