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<?php |
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/** |
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* Temporary compatibility shims for kses rules present in Gutenberg. |
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* |
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* The functions in this file should not be backported to core. |
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* |
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* @package gutenberg |
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*/ |
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|
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/** |
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* Sanitizes global styles user content removing unsafe rules. |
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* |
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* This function is identical to the core version, but called the |
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* Gutenberg version of the theme JSON class (`WP_Theme_JSON_Gutenberg`). |
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* |
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* This function should not be backported to core. |
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* |
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* @since 5.9.0 |
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* |
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* @param string $data Post content to filter. |
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* @return string Filtered post content with unsafe rules removed. |
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*/ |
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function gutenberg_filter_global_styles_post( $data ) { |
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$decoded_data = json_decode( wp_unslash( $data ), true ); |
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$json_decoding_error = json_last_error(); |
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if ( |
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JSON_ERROR_NONE === $json_decoding_error && |
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is_array( $decoded_data ) && |
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isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) && |
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$decoded_data['isGlobalStylesUserThemeJSON'] |
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) { |
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unset( $decoded_data['isGlobalStylesUserThemeJSON'] ); |
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|
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$data_to_encode = WP_Theme_JSON_Gutenberg::remove_insecure_properties( $decoded_data ); |
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|
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$data_to_encode['isGlobalStylesUserThemeJSON'] = true; |
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return wp_slash( wp_json_encode( $data_to_encode ) ); |
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} |
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return $data; |
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} |
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|
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/** |
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* Override core's kses_init_filters hooks for global styles, |
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* and use Gutenberg's version instead. This ensures that |
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* Gutenberg's `remove_insecure_properties` function can be called. |
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* |
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* The hooks are only set if they are already added, which ensures |
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* that global styles is only filtered for users without the `unfiltered_html` |
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* capability. |
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* |
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* This function should not be backported to core. |
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*/ |
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function gutenberg_override_core_kses_init_filters() { |
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if ( has_filter( 'content_save_pre', 'wp_filter_global_styles_post' ) ) { |
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remove_filter( 'content_save_pre', 'wp_filter_global_styles_post', 9 ); |
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add_filter( 'content_save_pre', 'gutenberg_filter_global_styles_post', 9 ); |
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} |
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|
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if ( has_filter( 'content_filtered_save_pre', 'wp_filter_global_styles_post' ) ) { |
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remove_filter( 'content_filtered_save_pre', 'wp_filter_global_styles_post', 9 ); |
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add_filter( 'content_filtered_save_pre', 'gutenberg_filter_global_styles_post', 9 ); |
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} |
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|
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} |
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add_action( 'init', 'gutenberg_override_core_kses_init_filters' ); |
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add_action( 'set_current_user', 'gutenberg_override_core_kses_init_filters' ); |
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|
