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<?php |
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/** |
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* Migration from Jetpack Custom CSS to WordPress' Core CSS. |
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* |
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* @since 4.4.2 |
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* |
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* @package automattic/jetpack |
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*/ |
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|
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/** |
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* Class Jetpack_Custom_CSS_Data_Migration |
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*/ |
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class Jetpack_Custom_CSS_Data_Migration { |
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/** |
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* Set up assorted actions and filters used by this class. |
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*/ |
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public static function add_hooks() { |
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add_action( 'init', array( __CLASS__, 'register_legacy_post_type' ) ); |
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add_action( 'admin_init', array( __CLASS__, 'do_migration' ) ); |
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|
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include_once( dirname( __FILE__ ) . '/custom-css.php' ); |
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if ( ! is_admin() ) { |
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add_action( 'init', array( 'Jetpack_Custom_CSS', 'init' ) ); |
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} |
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} |
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|
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/** |
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* Do the bulk of the migration. |
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* |
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* @return int|null |
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*/ |
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public static function do_migration() { |
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Jetpack_Options::update_option( 'custom_css_4.7_migration', true ); |
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Jetpack::log( 'custom_css_4.7_migration', 'start' ); |
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|
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if ( ! post_type_exists( 'safecss' ) ) { |
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self::register_legacy_post_type(); |
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} |
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|
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/** This filter is documented in modules/custom-css/custom-css.php */ |
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$preprocessors = apply_filters( 'jetpack_custom_css_preprocessors', array() ); |
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$core_css_post = wp_get_custom_css_post(); |
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$jetpack_css_post = self::get_post(); |
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|
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if ( ! $jetpack_css_post ) { |
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return; |
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} |
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|
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$revisions = self::get_all_revisions(); |
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|
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// Migrate the settings from revision meta to theme mod. |
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$options = self::get_options( $jetpack_css_post->ID ); |
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set_theme_mod( 'jetpack_custom_css', $options ); |
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|
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if ( empty( $revisions ) || ! is_array( $revisions ) ) { |
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if ( $jetpack_css_post instanceof WP_Post ) { |
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// Feed in the raw, if the current setting is Sass/LESS, it'll filter it inside. |
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kses_remove_filters(); |
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wp_update_custom_css_post( $jetpack_css_post->post_content ); |
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kses_init(); |
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return 1; |
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} |
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return null; |
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} |
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|
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$revisions = array_reverse( $revisions ); |
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$themes = Jetpack_Custom_CSS_Enhancements::get_themes(); |
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$migrated = array(); |
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|
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foreach ( $revisions as $post_id => $post ) { |
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// Jetpack had stored the theme Name, not the stylesheet directory, for ... reasons. |
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// Get the stylesheet. If null, the theme is no longer available. Skip. |
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$stylesheet = isset( $themes[ $post->post_excerpt ] ) ? $themes[ $post->post_excerpt ] : null; |
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if ( empty( $stylesheet ) ) { |
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continue; |
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} |
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|
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$migrated[] = $post->ID; |
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$preprocessor = get_post_meta( $post->ID, 'custom_css_preprocessor', true ); |
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$css = $post->post_content; |
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$pre = ''; |
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|
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// Do a revision by revision parsing. |
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if ( $preprocessor && isset( $preprocessors[ $preprocessor ] ) ) { |
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$pre = $css; |
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$css = call_user_func( $preprocessors[ $preprocessor ]['callback'], $pre ); |
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} |
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|
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kses_remove_filters(); |
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wp_update_custom_css_post( $css, array( |
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'stylesheet' => $stylesheet, |
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'preprocessed' => $pre, |
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) ); |
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kses_init(); |
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} |
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|
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// If we've migrated some CSS for the current theme and there was already something there in the Core dataset ... |
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if ( $core_css_post && $jetpack_css_post ) { |
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$preprocessor = $options['preprocessor']; |
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|
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$css = $core_css_post->post_content; |
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$pre = $core_css_post->post_content_filtered; |
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if ( $preprocessor ) { |
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if ( $pre ) { |
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$pre .= "\r\n\r\n/*\r\n\t" . esc_js( __( 'CSS Migrated from Jetpack:', 'jetpack' ) ) . "\r\n*/\r\n\r\n"; |
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} |
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$pre .= $jetpack_css_post->post_content; |
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|
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$css .= "\r\n\r\n/*\r\n\t" . esc_js( __( 'CSS Migrated from Jetpack:', 'jetpack' ) ) . "\r\n*/\r\n\r\n"; |
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$css .= call_user_func( $preprocessors[ $preprocessor ]['callback'], $jetpack_css_post->post_content ); |
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} else { |
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$css .= "\r\n\r\n/*\r\n\t" . esc_js( __( 'CSS Migrated from Jetpack:', 'jetpack' ) ) . "\r\n*/\r\n\r\n"; |
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$css .= $jetpack_css_post->post_content; |
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} |
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|
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wp_update_custom_css_post( $css, array( |
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'preprocessed' => $pre, |
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) ); |
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} |
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|
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Jetpack::log( 'custom_css_4.7_migration', count( $migrated ) . 'revisions migrated' ); |
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return count( $migrated ); |
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} |
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|
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/** |
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* Re-register the legacy CPT so we can play with the content already in the database. |
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*/ |
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public static function register_legacy_post_type() { |
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if ( post_type_exists( 'safecss' ) ) { |
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return; |
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} |
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// Register safecss as a custom post_type |
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// Explicit capability definitions are largely unnecessary because the posts are manipulated in code via an options page, managing CSS revisions does check the capabilities, so let's ensure that the proper caps are checked. |
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register_post_type( 'safecss', array( |
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'label' => 'Custom CSS', |
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'supports' => array( 'revisions' ), |
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'can_export' => false, |
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'rewrite' => false, |
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'capabilities' => array( |
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'edit_post' => 'edit_theme_options', |
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'read_post' => 'read', |
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'delete_post' => 'edit_theme_options', |
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'edit_posts' => 'edit_theme_options', |
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'edit_others_posts' => 'edit_theme_options', |
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'publish_posts' => 'edit_theme_options', |
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'read_private_posts' => 'read', |
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), |
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) ); |
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} |
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|
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/** |
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* Get the post used for legacy storage. |
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* |
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* Jetpack used to use a single post for all themes, just blanking it on theme switch. This gets that post. |
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* |
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* @return array|bool|null|WP_Post |
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*/ |
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public static function get_post() { |
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/** This filter is documented in modules/custom-css/custom-css.php */ |
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$custom_css_post_id = apply_filters( 'jetpack_custom_css_pre_post_id', null ); |
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if ( ! is_null( $custom_css_post_id ) ) { |
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return get_post( $custom_css_post_id ); |
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} |
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|
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$custom_css_post_id = wp_cache_get( 'custom_css_post_id' ); |
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|
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if ( false === $custom_css_post_id ) { |
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$custom_css_posts = get_posts( array( |
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'posts_per_page' => 1, |
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'post_type' => 'safecss', |
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'post_status' => 'publish', |
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'orderby' => 'date', |
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'order' => 'DESC', |
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) ); |
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|
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$custom_css_post_id = 0; |
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if ( count( $custom_css_posts ) > 0 ) { |
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$custom_css_post_id = $custom_css_posts[0]->ID; |
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} |
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|
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// Save post_id=0 to note that no safecss post exists. |
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wp_cache_set( 'custom_css_post_id', $custom_css_post_id ); |
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} |
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|
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if ( ! $custom_css_post_id ) { |
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return false; |
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} |
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|
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return get_post( $custom_css_post_id ); |
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} |
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|
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/** |
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* Get all revisions of the Jetpack CSS CPT entry. |
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* |
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* @return array |
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*/ |
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public static function get_all_revisions() { |
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$post = self::get_post(); |
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|
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if ( ! $post ) { |
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return array(); |
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} |
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|
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$revisions = wp_get_post_revisions( $post->ID, array( |
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'posts_per_page' => -1, |
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'orderby' => 'date', |
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'order' => 'DESC', |
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) ); |
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|
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return $revisions; |
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} |
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|
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/** |
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* Get the options stored for a given revision ID. |
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* |
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* Jetpack used to version the settings by storing them as meta on the revision. |
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* |
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* @param integer $post_id Post ID. |
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* |
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* @return array |
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*/ |
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public static function get_options( $post_id = null ) { |
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if ( empty( $post_id ) ) { |
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$post = self::get_post(); |
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$post_id = $post->ID; |
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} |
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|
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$meta = get_post_meta( $post_id ); |
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|
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$replace = false; |
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if ( isset( $meta['custom_css_add'][0] ) && 'no' === $meta['custom_css_add'][0] ) { |
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$replace = true; |
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} |
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|
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return array( |
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'preprocessor' => isset( $meta['custom_css_preprocessor'][0] ) ? $meta['custom_css_preprocessor'][0] : '', |
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'replace' => $replace, |
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'content_width' => isset( $meta['content_width'][0] ) ? $meta['content_width'][0] : '', |
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); |
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} |
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} |
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|
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Jetpack_Custom_CSS_Data_Migration::add_hooks(); |
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|
