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<?php

class ITSEC_WordPress_Salts_Validator extends ITSEC_Validator {
    public function get_id() {
        return 'wordpress-salts';
    }
    
    protected function sanitize_settings() {
        $previous_settings = ITSEC_Modules::get_settings( $this->get_id() );
        
        if ( ! isset( $this->settings['last_generated'] ) ) {
            $this->settings['last_generated'] = $previous_settings['last_generated'];
        }
        
        $this->sanitize_setting( 'bool', 'regenerate', __( 'Change WordPress Salts', 'better-wp-security' ), false );
        $this->sanitize_setting( 'positive-int', 'last_generated', __( 'Last Generated', 'better-wp-security' ), false );
        
        $this->vars_to_skip_validate_matching_fields[] = 'regenerate';
    }
    
    protected function validate_settings() {
        if ( ! $this->can_save() ) {
            return;
        }
        
        if ( ! $this->settings['regenerate'] ) {
            unset( $this->settings['regenerate'] );
            
            if ( defined( 'DOING_AJAX' ) && DOING_AJAX && ! empty( $_POST['module'] ) && $this->get_id() === $_POST['module'] ) {
                // Request to modify just this module.
                
                $this->set_can_save( false );
                
                if ( ITSEC_Modules::get_setting( 'global', 'write_files' ) ) {
                    $this->add_error( new WP_Error( 'itsec-wordpress-salts-skipping-regeneration-empty-checkbox', __( 'You must check the Change WordPress Salts checkbox in order to change the WordPress salts.', 'better-wp-security' ) ) );
                } else {
                    $this->add_error( new WP_Error( 'itsec-wordpress-salts-skipping-regeneration-write-files-disabled', __( 'The "Write to Files" setting is disabled in Global Settings. In order to use this feature, you must enable the "Write to Files" setting.', 'better-wp-security' ) ) );
                }
            }
            
            return;
        }
        
        
        unset( $this->settings['regenerate'] );
        
        require_once( dirname( __FILE__ ) . '/utilities.php' );
        
        $result = ITSEC_WordPress_Salts_Utilities::generate_new_salts();
        
        if ( is_wp_error( $result ) ) {
            $this->add_error( $result );
            $this->set_can_save( false );
        } else {
            $this->add_message( __( 'The WordPress salts were successfully regenerated.', 'better-wp-security' ) );
            $this->settings['last_generated'] = ITSEC_Core::get_current_time_gmt();
            
            ITSEC_Response::force_logout();
        }
    }
}

ITSEC_Modules::register_validator( new ITSEC_WordPress_Salts_Validator() );