# gutenberg/15.2.2/lib/experimental/kses.php

Gutenberg, version 15.2.2. 68 lines.

- Page: https://pluginprobe.com/plugins/gutenberg/15.2.2/code/lib/experimental/kses.php
- Raw: https://pluginprobe.com/plugins/gutenberg/15.2.2/raw/lib/experimental/kses.php
- Modified: 2023-02-08T16:57:30+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/gutenberg/15.2.2/code/lib/experimental/kses.php#L10-L20`.

```php
<?php
/**
 * Temporary compatibility shims for kses rules present in Gutenberg.
 *
 * The functions in this file should not be backported to core.
 *
 * @package gutenberg
 */

/**
 * Sanitizes global styles user content removing unsafe rules.
 *
 * This function is identical to the core version, but called the
 * Gutenberg version of the theme JSON class (`WP_Theme_JSON_Gutenberg`).
 *
 * This function should not be backported to core.
 *
 * @since 5.9.0
 *
 * @param string $data Post content to filter.
 * @return string Filtered post content with unsafe rules removed.
 */
function gutenberg_filter_global_styles_post( $data ) {
	$decoded_data        = json_decode( wp_unslash( $data ), true );
	$json_decoding_error = json_last_error();
	if (
		JSON_ERROR_NONE === $json_decoding_error &&
		is_array( $decoded_data ) &&
		isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) &&
		$decoded_data['isGlobalStylesUserThemeJSON']
	) {
		unset( $decoded_data['isGlobalStylesUserThemeJSON'] );

		$data_to_encode = WP_Theme_JSON_Gutenberg::remove_insecure_properties( $decoded_data );

		$data_to_encode['isGlobalStylesUserThemeJSON'] = true;
		return wp_slash( wp_json_encode( $data_to_encode ) );
	}
	return $data;
}

/**
 * Override core's kses_init_filters hooks for global styles,
 * and use Gutenberg's version instead. This ensures that
 * Gutenberg's `remove_insecure_properties` function can be called.
 *
 * The hooks are only set if they are already added, which ensures
 * that global styles is only filtered for users without the `unfiltered_html`
 * capability.
 *
 * This function should not be backported to core.
 */
function gutenberg_override_core_kses_init_filters() {
	if ( has_filter( 'content_save_pre', 'wp_filter_global_styles_post' ) ) {
		remove_filter( 'content_save_pre', 'wp_filter_global_styles_post', 9 );
		add_filter( 'content_save_pre', 'gutenberg_filter_global_styles_post', 9 );
	}

	if ( has_filter( 'content_filtered_save_pre', 'wp_filter_global_styles_post' ) ) {
		remove_filter( 'content_filtered_save_pre', 'wp_filter_global_styles_post', 9 );
		add_filter( 'content_filtered_save_pre', 'gutenberg_filter_global_styles_post', 9 );
	}

}
// The 'kses_init_filters' is usually initialized with default priority. Use higher priority to override.
add_action( 'init', 'gutenberg_override_core_kses_init_filters', 20 );
add_action( 'set_current_user', 'gutenberg_override_core_kses_init_filters' );

```