/
wp-encrypted-options.php
139 lines (109 loc) · 3.53 KB
/
wp-encrypted-options.php
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<?php
/*
* Plugin Name: Encrypted Options
* Plugin URI: http://wordpress.org/plugins/wp-encrypted-options/
* Description: Encrypt Options in the WordPress database.
* Version: 0.1
* Author: Josh Betz
* Author URI: https://joshbetz.com
* Text Domain: wp-encrypted-options
*/
if ( ! defined( 'WPEO_KEY' ) ) {
define( 'WPEO_KEY', '' );
}
class WP_Encrypted_Options {
const METHOD = 'aes256';
const IV_LENGTH = 16;
function __construct() {
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
}
function admin_notices() {
if ( empty( WPEO_KEY ) ) {
// TODO: Add link to documentation
echo '<div class="error"><p><strong>Warning:</strong> Empty <code>WPEO_KEY</code>.</p></div>';
}
}
static function encrypt( $value ) {
$iv = substr( bin2hex( openssl_random_pseudo_bytes( self::IV_LENGTH ) ), 0, self::IV_LENGTH );
$value = openssl_encrypt( $value, self::METHOD, md5( WPEO_KEY ), false, $iv );
return array( $iv, $value );
}
static function decrypt( $encrypted ) {
list( $iv, $value ) = $encrypted;
if ( empty( $value ) ) {
return false;
}
return openssl_decrypt( $value, self::METHOD, md5( WPEO_KEY ), false, $iv );
}
}
new WP_Encrypted_Options;
function wpeo_encrypt( $value ) {
$value = maybe_serialize( $value );
return WP_Encrypted_Options::encrypt( $value );
}
function wpeo_add_option( $option, $value ) {
$value = maybe_serialize( $value );
$value = WP_Encrypted_Options::encrypt( $value );
return add_option( $option, $value );
}
function wpeo_get_option( $option, $default = null ) {
$value = get_option( $option );
if ( empty( $value ) ) {
return $default;
}
$value = WP_Encrypted_Options::decrypt( $value );
$value = maybe_unserialize( $value );
return $value;
}
function wpeo_get_user_option( $option, $user = null ) {
$value = get_user_option( $option, $user );
$value = WP_Encrypted_Options::decrypt( $value );
$value = maybe_unserialize( $value );
return $value;
}
function wpeo_update_option( $option, $value ) {
$value = WP_Encrypted_Options::encrypt( $value );
return update_option( $option, $value );
}
function wpeo_update_user_option( $user_id, $option, $value, $global = null ) {
$value = WP_Encrypted_Options::encrypt( $value );
return update_user_option( $user_id, $option, $value, $global );
}
if ( is_multisite() ) {
function wpeo_add_blog_option( $id, $option, $value ) {
$value = maybe_serialize( $value );
$value = WP_Encrypted_Options::encrypt( $value );
return add_blog_option( $id, $option, $value );
}
function wpeo_add_site_option( $option, $value ) {
$value = maybe_serialize( $value );
$value = WP_Encrypted_Options::encrypt( $value );
return add_site_option( $option, $value );
}
function wpeo_get_blog_option( $id, $option, $default = null ) {
$value = get_blog_option( $id, $option );
if ( empty( $value ) ) {
return $default;
}
$value = WP_Encrypted_Options::decrypt( $value );
$value = maybe_unserialize( $value );
return $value;
}
function wpeo_get_site_option( $option, $default = null ) {
$value = get_site_option( $option );
if ( empty( $value ) ) {
return $default;
}
$value = WP_Encrypted_Options::decrypt( $value );
$value = maybe_unserialize( $value );
return $value;
}
function wpeo_update_blog_option( $id, $option, $value ) {
$value = WP_Encrypted_Options::encrypt( $value );
return update_blog_option( $id, $option, $value );
}
function wpeo_update_site_option( $option, $value ) {
$value = WP_Encrypted_Options::encrypt( $value );
return update_site_option( $option, $value );
}
}