* This capability is required to view global styles.
*/
if ( current_user_can( 'edit_posts' ) ) {
return true;
}
foreach ( get_post_types( array( 'show_in_rest' => true ), 'objects' ) as $post_type ) {
if ( current_user_can( $post_type->cap->edit_posts ) ) {
return true;
}
}
/*
* Verify if the current user has edit_theme_options capability.
*/
if ( current_user_can( 'edit_theme_options' ) ) {
return true;
}
return new WP_Error(
'rest_cannot_read_global_styles',
__( 'Sorry, you are not allowed to access the global styles on this site.' ),
array(
'status' => rest_authorization_required_code(),
)
);
}
/**
* Returns the given theme global styles config.
*
* @since 5.9.0
* @since 6.6.0 Added custom relative theme file URIs to `_links`.
*
* @param WP_REST_Request $request The request instance.
* @return WP_REST_Response|WP_Error
*/
public function get_theme_item( $request ) {
if ( get_stylesheet() !== $request['stylesheet'] ) {
// This endpoint only supports the active theme for now.
return new WP_Error(
'rest_theme_not_found',
__( 'Theme not found.' ),
array( 'status' => 404 )
);
}
$theme = WP_Theme_JSON_Resolver::get_merged_data( 'theme' );
$fields = $this->get_fields_for_response( $request );
$data = array();
if ( rest_is_field_included( 'settings', $fields ) ) {
$data['settings'] = $theme->get_settings();
}
if ( rest_is_field_included( 'styles', $fields ) ) {
$raw_data = $theme->get_raw_data();
$data['styles'] = $raw_data['styles'] ?? array();
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
$response = rest_ensure_response( $data );
if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
$links = array(
'self' => array(
'href' => rest_url( sprintf( '%s/%s/themes/%s', $this->namespace, $this->rest_base, $request['stylesheet'] ) ),
),
);
$resolved_theme_uris = WP_Theme_JSON_Resolver::get_resolved_theme_uris( $theme );
if ( ! empty( $resolved_theme_uris ) ) {
$links['https://api.w.org/theme-file'] = $resolved_theme_uris;
}
$response->add_links( $links );
}
return $response;
}
/**
* Checks if a given request has access to read a single theme global styles config.
*
* @since 6.0.0
* @since 6.7.0 Allow users with edit post capabilities to view theme global styles.
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_theme_items_permissions_check( $request ) {
return $this->get_theme_item_permissions_check( $request );
}
/**
* Returns the given theme global styles variations.
*
* @since 6.0.0
* @since 6.2.0 Returns parent theme variations, if they exist.
* @since 6.6.0 Added custom relative theme file URIs to `_links` for each item.
*
* @param WP_REST_Request $request The request instance.
*
* @return WP_REST_Response|WP_Error
*/
public function get_theme_items( $request ) {
if ( get_stylesheet() !== $request['stylesheet'] ) {
// This endpoint only supports the active theme for now.
return new WP_Error(
'rest_theme_not_found',
__( 'Theme not found.' ),
array( 'status' => 404 )
);
}
$response = array();
// Register theme-defined variations e.g. from block style variation partials under `/styles`.
$partials = WP_Theme_JSON_Resolver::get_style_variations( 'block' );
wp_register_block_style_variations_from_theme_json_partials( $partials );
$variations = WP_Theme_JSON_Resolver::get_style_variations();
foreach ( $variations as $variation ) {
$variation_theme_json = new WP_Theme_JSON( $variation );
$resolved_theme_uris = WP_Theme_JSON_Resolver::get_resolved_theme_uris( $variation_theme_json );
$data = rest_ensure_response( $variation );
if ( ! empty( $resolved_theme_uris ) ) {
$data->add_links(
array(
'https://api.w.org/theme-file' => $resolved_theme_uris,
)
);
}
$response[] = $this->prepare_response_for_collection( $data );
}
return rest_ensure_response( $response );
}
/**
* Validate style.css as valid CSS.
*
* Currently just checks that CSS will not break an HTML STYLE tag.
*
* @since 6.2.0
* @since 6.4.0 Changed method visibility to protected.
* @since 7.0.0 Only restricts contents which risk prematurely closing the STYLE element,
* either through a STYLE end tag or a prefix of one which might become a
* full end tag when combined with the contents of other styles.
*
* @see WP_Customize_Custom_CSS_Setting::validate()
*
* @param string $css CSS to validate.
* @return true|WP_Error True if the input was validated, otherwise WP_Error.
*/
protected function validate_custom_css( $css ) {
$length = strlen( $css );
for (
$at = strcspn( $css, '<' );
$at < $length;
$at += strcspn( $css, '<', ++$at )
) {
$remaining_strlen = $length - $at;
/**
* Custom CSS text is expected to render inside an HTML STYLE element.
* A STYLE closing tag must not appear within the CSS text because it
* would close the element prematurely.
*
* The text must also *not* end with a partial closing tag (e.g., `<`,
* `` tag.
*
* Example:
*
* $style_a = 'p { font-weight: bold; 400 )
);
}
if ( 1 === strspn( $css, " \t\f\r\n/>", $at + 7, 1 ) ) {
return new WP_Error(
'rest_custom_css_illegal_markup',
sprintf(
/* translators: %s is the CSS that was provided. */
__( 'The CSS must not contain "%s".' ),
esc_html( substr( $css, $at, 8 ) )
),
array( 'status' => 400 )
);
}
}
}
return true;
}
}
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