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EDIT :: class-theme-installer-skin.php

<?php /** * Upgrader API: Theme_Installer_Skin class * * @package WordPress * @subpackage Upgrader * @since 4.6.0 */ /** * Theme Installer Skin for the WordPress Theme Installer. * * @since 2.8.0 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php. * * @see WP_Upgrader_Skin */ class Theme_Installer_Skin extends WP_Upgrader_Skin { public $api; public $type; public $url; public $overwrite; private $is_downgrading = false; /** * @param array $args */ public function __construct( $args = array() ) { $defaults = array( 'type' => 'web', 'url' => '', 'theme' => '', 'nonce' => '', 'title' => '', 'overwrite' => '', ); $args = wp_parse_args( $args, $defaults ); $this->type = $args['type']; $this->url = $args['url']; $this->api = isset( $args['api'] ) ? $args['api'] : array(); $this->overwrite = $args['overwrite']; parent::__construct( $args ); } /** * Action to perform before installing a theme. * * @since 2.8.0 */ public function before() { if ( ! empty( $this->api ) ) { $this->upgrader->strings['process_success'] = sprintf( $this->upgrader->strings['process_success_specific'], $this->api->name, $this->api->version ); } } /** * Hides the `process_failed` error when updating a theme by uploading a zip file. * * @since 5.5.0 * * @param WP_Error $wp_error WP_Error object. * @return bool */ public function hide_process_failed( $wp_error ) { if ( 'upload' === $this->type && '' === $this->overwrite && $wp_error->get_error_code() === 'folder_exists' ) { return true; } return false; } /** * Action to perform following a single theme install. * * @since 2.8.0 */ public function after() { if ( $this->do_overwrite() ) { return; } if ( empty( $this->upgrader->result['destination_name'] ) ) { return; } $theme_info = $this->upgrader->theme_info(); if ( empty( $theme_info ) ) { return; } $name = $theme_info->display( 'Name' ); $stylesheet = $this->upgrader->result['destination_name']; $template = $theme_info->get_template(); $activate_link = add_query_arg( array( 'action' => 'activate', 'template' => urlencode( $template ), 'stylesheet' => urlencode( $stylesheet ), ), admin_url( 'themes.php' ) ); $activate_link = wp_nonce_url( $activate_link, 'switch-theme_' . $stylesheet ); $install_actions = array(); if ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) && ! $theme_info->is_block_theme() ) { $customize_url = add_query_arg( array( 'theme' => urlencode( $stylesheet ), 'return' => urlencode( admin_url( 'web' === $this->type ? 'theme-install.php' : 'themes.php' ) ), ), admin_url( 'customize.php' ) ); $install_actions['preview'] = sprintf( '<a href="%s" class="hide-if-no-customize load-customize">' . '<span aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></a>', esc_url( $customize_url ), __( 'Live Preview' ), /* translators: Hidden accessibility text. %s: Theme name. */ sprintf( __( 'Live Preview &#8220;%s&#8221;' ), $name ) ); } $install_actions['activate'] = sprintf( '<a href="%s" class="activatelink">' . '<span aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></a>', esc_url( $activate_link ), __( 'Activate' ), /* translators: Hidden accessibility text. %s: Theme name. */ sprintf( _x( 'Activate &#8220;%s&#8221;', 'theme' ), $name ) ); if ( is_network_admin() && current_user_can( 'manage_network_themes' ) ) { $install_actions['network_enable'] = sprintf( '<a href="%s" target="_parent">%s</a>', esc_url( wp_nonce_url( 'themes.php?action=enable&amp;theme=' . urlencode( $stylesheet ), 'enable-theme_' . $stylesheet ) ), __( 'Network Enable' ) ); } if ( 'web' === $this->type ) { $install_actions['themes_page'] = sprintf( '<a href="%s" target="_parent">%s</a>', self_admin_url( 'theme-install.php' ), __( 'Go to Theme Installer' ) ); } elseif ( current_user_can( 'switch_themes' ) || current_user_can( 'edit_theme_options' ) ) { $install_actions['themes_page'] = sprintf( '<a href="%s" target="_parent">%s</a>', self_admin_url( 'themes.php' ), __( 'Go to Themes page' ) ); } if ( ! $this->result || is_wp_error( $this->result ) || is_network_admin() || ! current_user_can( 'switch_themes' ) ) { unset( $install_actions['activate'], $install_actions['preview'] ); } elseif ( get_option( 'template' ) === $stylesheet ) { unset( $install_actions['activate'] ); } /** * Filters the list of action links available following a single theme installation. * * @since 2.8.0 * * @param string[] $install_actions Array of theme action links. * @param object $api Object containing WordPress.org API theme data. * @param string $stylesheet Theme directory name. * @param WP_Theme $theme_info Theme object. */ $install_actions = apply_filters( 'install_theme_complete_actions', $install_actions, $this->api, $stylesheet, $theme_info ); if ( ! empty( $install_actions ) ) { $this->feedback( implode( ' | ', (array) $install_actions ) ); } } /** * Check if the theme can be overwritten and output the HTML for overwriting a theme on upload. * * @since 5.5.0 * * @return bool Whether the theme can be overwritten and HTML was outputted. */ private function do_overwrite() { if ( 'upload' !== $this->type || ! is_wp_error( $this->result ) || 'folder_exists' !== $this->result->get_error_code() ) { return false; } $folder = $this->result->get_error_data( 'folder_exists' ); $folder = rtrim( $folder, '/' ); $current_theme_data = false; $all_themes = wp_get_themes( array( 'errors' => null ) ); foreach ( $all_themes as $theme ) { $stylesheet_dir = wp_normalize_path( $theme->get_stylesheet_directory() ); if ( rtrim( $stylesheet_dir, '/' ) !== $folder ) { continue; } $current_theme_data = $theme; } $new_theme_data = $this->upgrader->new_theme_data; if ( ! $current_theme_data || ! $new_theme_data ) { return false; } echo '<h2 class="update-from-upload-heading">' . esc_html__( 'This theme is already installed.' ) . '</h2>'; // Check errors for active theme. if ( is_wp_error( $current_theme_data->errors() ) ) { $this->feedback( 'current_theme_has_errors', $current_theme_data->errors()->get_error_message() ); } $this->is_downgrading = version_compare( $current_theme_data['Version'], $new_theme_data['Version'], '>' ); $is_invalid_parent = false; if ( ! empty( $new_theme_data['Template'] ) ) { $is_invalid_parent = ! in_array( $new_theme_data['Template'], array_keys( $all_themes ), true ); } $rows = array( 'Name' => __( 'Theme name' ), 'Version' => __( 'Version' ), 'Author' => __( 'Author' ), 'RequiresWP' => __( 'Required WordPress version' ), 'RequiresPHP' => __( 'Required PHP version' ), 'Template' => __( 'Parent theme' ), ); $table = '<table class="update-from-upload-comparison"><tbody>'; $table .= '<tr><th></th><th>' . esc_html_x( 'Active', 'theme' ) . '</th><th>' . esc_html_x( 'Uploaded', 'theme' ) . '</th></tr>'; $is_same_theme = true; // Let's consider only these rows. foreach ( $rows as $field => $label ) { $old_value = $current_theme_data->display( $field, false ); $old_value = $old_value ? (string) $old_value : '-'; $new_value = ! empty( $new_theme_data[ $field ] ) ? (string) $new_theme_data[ $field ] : '-'; if ( $old_value === $new_value && '-' === $new_value && 'Template' === $field ) { continue; } $is_same_theme = $is_same_theme && ( $old_value === $new_value ); $diff_field = ( 'Version' !== $field && $new_value !== $old_value ); $diff_version = ( 'Version' === $field && $this->is_downgrading ); $invalid_parent = false; if ( 'Template' === $field && $is_invalid_parent ) { $invalid_parent = true; $new_value .= ' ' . __( '(not found)' ); } $table .= '<tr><td class="name-label">' . $label . '</td><td>' . wp_strip_all_tags( $old_value ) . '</td>'; $table .= ( $diff_field || $diff_version || $invalid_parent ) ? '<td class="warning">' : '<td>'; $table .= wp_strip_all_tags( $new_value ) . '</td></tr>'; } $table .= '</tbody></table>'; /** * Filters the compare table output for overwriting a theme package on upload. * * @since 5.5.0 * * @param string $table The output table with Name, Version, Author, RequiresWP, and RequiresPHP info. * @param WP_Theme $current_theme_data Active theme data. * @param array $new_theme_data Array with uploaded theme data. */ echo apply_filters( 'install_theme_overwrite_comparison', $table, $current_theme_data, $new_theme_data ); $install_actions = array(); $can_update = true; $blocked_message = '<p>' . esc_html__( 'The theme cannot be updated due to the following:' ) . '</p>'; $blocked_message .= '<ul class="ul-disc">'; $requires_php = isset( $new_theme_data['RequiresPHP'] ) ? $new_theme_data['RequiresPHP'] : null; $requires_wp = isset( $new_theme_data['RequiresWP'] ) ? $new_theme_data['RequiresWP'] : null; if ( ! is_php_version_compatible( $requires_php ) ) { $error = sprintf( /* translators: 1: Current PHP version, 2: Version required by the uploaded theme. */ __( 'The PHP version on your server is %1$s, however the uploaded theme requires %2$s.' ), PHP_VERSION, $requires_php ); $blocked_message .= '<li>' . esc_html( $error ) . '</li>'; $can_update = false; } if ( ! is_wp_version_compatible( $requires_wp ) ) { $error = sprintf( /* translators: 1: Current WordPress version, 2: Version required by the uploaded theme. */ __( 'Your WordPress version is %1$s, however the uploaded theme requires %2$s.' ), get_bloginfo( 'version' ), $requires_wp ); $blocked_message .= '<li>' . esc_html( $error ) . '</li>'; $can_update = false; } $blocked_message .= '</ul>'; if ( $can_update ) { if ( $this->is_downgrading ) { $warning = sprintf( /* translators: %s: Documentation URL. */ __( 'You are uploading an older version of the active theme. You can continue to install the older version, but be sure to <a href="%s">back up your database and files</a> first.' ), __( 'https://wordpress.org/documentation/article/wordpress-backups/' ) ); } else { $warning = sprintf( /* translators: %s: Documentation URL. */ __( 'You are updating a theme. Be sure to <a href="%s">back up your database and files</a> first.' ), __( 'https://wordpress.org/documentation/article/wordpress-backups/' ) ); } echo '<p class="update-from-upload-notice">' . $warning . '</p>'; $overwrite = $this->is_downgrading ? 'downgrade-theme' : 'update-theme'; $install_actions['overwrite_theme'] = sprintf( '<a class="button button-primary update-from-upload-overwrite" href="%s" target="_parent">%s</a>', wp_nonce_url( add_query_arg( 'overwrite', $overwrite, $this->url ), 'theme-upload' ), _x( 'Replace active with uploaded', 'theme' ) ); } else { echo $blocked_message; } $cancel_url = add_query_arg( 'action', 'upload-theme-cancel-overwrite', $this->url ); $install_actions['themes_page'] = sprintf( '<a class="button" href="%s" target="_parent">%s</a>', wp_nonce_url( $cancel_url, 'theme-upload-cancel-overwrite' ), __( 'Cancel and go back' ) ); /** * Filters the list of action links available following a single theme installation failure * when overwriting is allowed. * * @since 5.5.0 * * @param string[] $install_actions Array of theme action links. * @param object $api Object containing WordPress.org API theme data. * @param array $new_theme_data Array with uploaded theme data. */ $install_actions = apply_filters( 'install_theme_overwrite_actions', $install_actions, $this->api, $new_theme_data ); if ( ! empty( $install_actions ) ) { printf( '<p class="update-from-upload-expired hidden">%s</p>', __( 'The uploaded file has expired. Please go back and upload it again.' ) ); echo '<p class="update-from-upload-actions">' . implode( ' ', (array) $install_actions ) . '</p>'; } return true; } }

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