649 lines
20 KiB
PHP
649 lines
20 KiB
PHP
<?php
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/**
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* Upgrade API: Theme_Upgrader class
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*
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* @package WordPress
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* @subpackage Upgrader
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* @since 4.6.0
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*/
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/**
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* Core class used for upgrading/installing themes.
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*
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* It is designed to upgrade/install themes from a local zip, remote zip URL,
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* or uploaded zip file.
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*
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* @since 2.8.0
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* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
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*
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* @see WP_Upgrader
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*/
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class Theme_Upgrader extends WP_Upgrader {
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/**
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* Result of the theme upgrade offer.
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*
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* @since 2.8.0
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* @var array|WP_Error $result
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* @see WP_Upgrader::$result
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*/
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public $result;
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/**
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* Whether multiple themes are being upgraded/installed in bulk.
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*
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* @since 2.9.0
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* @var bool $bulk
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*/
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public $bulk = false;
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/**
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* Initialize the upgrade strings.
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*
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* @since 2.8.0
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*/
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public function upgrade_strings() {
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$this->strings['up_to_date'] = __( 'The theme is at the latest version.' );
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$this->strings['no_package'] = __( 'Update package not available.' );
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/* translators: %s: package URL */
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$this->strings['downloading_package'] = sprintf( __( 'Downloading update from %s…' ), '<span class="code">%s</span>' );
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$this->strings['unpack_package'] = __( 'Unpacking the update…' );
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$this->strings['remove_old'] = __( 'Removing the old version of the theme…' );
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$this->strings['remove_old_failed'] = __( 'Could not remove the old theme.' );
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$this->strings['process_failed'] = __( 'Theme update failed.' );
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$this->strings['process_success'] = __( 'Theme updated successfully.' );
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}
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/**
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* Initialize the installation strings.
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*
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* @since 2.8.0
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*/
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public function install_strings() {
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$this->strings['no_package'] = __( 'Installation package not available.' );
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/* translators: %s: package URL */
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$this->strings['downloading_package'] = sprintf( __( 'Downloading installation package from %s…' ), '<span class="code">%s</span>' );
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$this->strings['unpack_package'] = __( 'Unpacking the package…' );
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$this->strings['installing_package'] = __( 'Installing the theme…' );
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$this->strings['no_files'] = __( 'The theme contains no files.' );
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$this->strings['process_failed'] = __( 'Theme installation failed.' );
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$this->strings['process_success'] = __( 'Theme installed successfully.' );
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/* translators: 1: theme name, 2: version */
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$this->strings['process_success_specific'] = __( 'Successfully installed the theme <strong>%1$s %2$s</strong>.' );
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$this->strings['parent_theme_search'] = __( 'This theme requires a parent theme. Checking if it is installed…' );
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/* translators: 1: theme name, 2: version */
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$this->strings['parent_theme_prepare_install'] = __( 'Preparing to install <strong>%1$s %2$s</strong>…' );
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/* translators: 1: theme name, 2: version */
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$this->strings['parent_theme_currently_installed'] = __( 'The parent theme, <strong>%1$s %2$s</strong>, is currently installed.' );
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/* translators: 1: theme name, 2: version */
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$this->strings['parent_theme_install_success'] = __( 'Successfully installed the parent theme, <strong>%1$s %2$s</strong>.' );
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/* translators: %s: theme name */
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$this->strings['parent_theme_not_found'] = sprintf( __( '<strong>The parent theme could not be found.</strong> You will need to install the parent theme, %s, before you can use this child theme.' ), '<strong>%s</strong>' );
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}
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/**
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* Check if a child theme is being installed and we need to install its parent.
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*
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* Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::install().
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*
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* @since 3.4.0
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*
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* @param bool $install_result
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* @param array $hook_extra
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* @param array $child_result
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* @return type
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*/
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public function check_parent_theme_filter( $install_result, $hook_extra, $child_result ) {
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// Check to see if we need to install a parent theme
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$theme_info = $this->theme_info();
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if ( ! $theme_info->parent() ) {
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return $install_result;
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}
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$this->skin->feedback( 'parent_theme_search' );
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if ( ! $theme_info->parent()->errors() ) {
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$this->skin->feedback( 'parent_theme_currently_installed', $theme_info->parent()->display( 'Name' ), $theme_info->parent()->display( 'Version' ) );
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// We already have the theme, fall through.
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return $install_result;
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}
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// We don't have the parent theme, let's install it.
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$api = themes_api(
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'theme_information',
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array(
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'slug' => $theme_info->get( 'Template' ),
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'fields' => array(
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'sections' => false,
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'tags' => false,
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),
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)
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); //Save on a bit of bandwidth.
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if ( ! $api || is_wp_error( $api ) ) {
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$this->skin->feedback( 'parent_theme_not_found', $theme_info->get( 'Template' ) );
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// Don't show activate or preview actions after installation
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add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
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return $install_result;
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}
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// Backup required data we're going to override:
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$child_api = $this->skin->api;
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$child_success_message = $this->strings['process_success'];
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// Override them
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$this->skin->api = $api;
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$this->strings['process_success_specific'] = $this->strings['parent_theme_install_success'];//, $api->name, $api->version);
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$this->skin->feedback( 'parent_theme_prepare_install', $api->name, $api->version );
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add_filter( 'install_theme_complete_actions', '__return_false', 999 ); // Don't show any actions after installing the theme.
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// Install the parent theme
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$parent_result = $this->run(
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array(
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'package' => $api->download_link,
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'destination' => get_theme_root(),
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'clear_destination' => false, //Do not overwrite files.
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'clear_working' => true,
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)
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);
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if ( is_wp_error( $parent_result ) ) {
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add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
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}
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// Start cleaning up after the parents installation
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remove_filter( 'install_theme_complete_actions', '__return_false', 999 );
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// Reset child's result and data
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$this->result = $child_result;
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$this->skin->api = $child_api;
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$this->strings['process_success'] = $child_success_message;
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return $install_result;
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}
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/**
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* Don't display the activate and preview actions to the user.
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*
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* Hooked to the {@see 'install_theme_complete_actions'} filter by
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* Theme_Upgrader::check_parent_theme_filter() when installing
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* a child theme and installing the parent theme fails.
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*
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* @since 3.4.0
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*
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* @param array $actions Preview actions.
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* @return array
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*/
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public function hide_activate_preview_actions( $actions ) {
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unset( $actions['activate'], $actions['preview'] );
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return $actions;
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}
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/**
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* Install a theme package.
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*
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* @since 2.8.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
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*
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* @param string $package The full local path or URI of the package.
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* @param array $args {
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* Optional. Other arguments for installing a theme package. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the updates cache if successful.
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* Default true.
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* }
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*
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* @return bool|WP_Error True if the installation was successful, false or a WP_Error object otherwise.
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*/
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public function install( $package, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->install_strings();
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add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
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add_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ), 10, 3 );
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if ( $parsed_args['clear_update_cache'] ) {
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// Clear cache so wp_update_themes() knows about the new theme.
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add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
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}
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$this->run(
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array(
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'package' => $package,
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'destination' => get_theme_root(),
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'clear_destination' => false, //Do not overwrite files.
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'clear_working' => true,
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'hook_extra' => array(
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'type' => 'theme',
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'action' => 'install',
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),
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)
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);
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remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
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remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
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remove_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ) );
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if ( ! $this->result || is_wp_error( $this->result ) ) {
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return $this->result;
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}
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// Refresh the Theme Update information
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wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
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return true;
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}
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/**
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* Upgrade a theme.
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*
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* @since 2.8.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
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*
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* @param string $theme The theme slug.
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* @param array $args {
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* Optional. Other arguments for upgrading a theme. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the update cache if successful.
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* Default true.
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* }
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* @return bool|WP_Error True if the upgrade was successful, false or a WP_Error object otherwise.
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*/
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public function upgrade( $theme, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->upgrade_strings();
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// Is an update available?
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$current = get_site_transient( 'update_themes' );
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if ( ! isset( $current->response[ $theme ] ) ) {
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$this->skin->before();
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$this->skin->set_result( false );
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$this->skin->error( 'up_to_date' );
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$this->skin->after();
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return false;
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}
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$r = $current->response[ $theme ];
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add_filter( 'upgrader_pre_install', array( $this, 'current_before' ), 10, 2 );
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add_filter( 'upgrader_post_install', array( $this, 'current_after' ), 10, 2 );
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add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ), 10, 4 );
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if ( $parsed_args['clear_update_cache'] ) {
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// Clear cache so wp_update_themes() knows about the new theme.
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add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
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}
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$this->run(
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array(
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'package' => $r['package'],
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'destination' => get_theme_root( $theme ),
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'clear_destination' => true,
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'clear_working' => true,
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'hook_extra' => array(
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'theme' => $theme,
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'type' => 'theme',
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'action' => 'update',
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),
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)
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);
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remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
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remove_filter( 'upgrader_pre_install', array( $this, 'current_before' ) );
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remove_filter( 'upgrader_post_install', array( $this, 'current_after' ) );
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remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ) );
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if ( ! $this->result || is_wp_error( $this->result ) ) {
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return $this->result;
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}
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wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
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return true;
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}
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/**
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* Upgrade several themes at once.
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*
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* @since 3.0.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
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*
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* @param string[] $themes Array of the theme slugs.
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* @param array $args {
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* Optional. Other arguments for upgrading several themes at once. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the update cache if successful.
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* Default true.
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* }
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* @return array[]|false An array of results, or false if unable to connect to the filesystem.
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*/
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public function bulk_upgrade( $themes, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->bulk = true;
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$this->upgrade_strings();
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$current = get_site_transient( 'update_themes' );
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add_filter( 'upgrader_pre_install', array( $this, 'current_before' ), 10, 2 );
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add_filter( 'upgrader_post_install', array( $this, 'current_after' ), 10, 2 );
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add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ), 10, 4 );
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$this->skin->header();
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// Connect to the Filesystem first.
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$res = $this->fs_connect( array( WP_CONTENT_DIR ) );
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if ( ! $res ) {
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$this->skin->footer();
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return false;
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}
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$this->skin->bulk_header();
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// Only start maintenance mode if:
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// - running Multisite and there are one or more themes specified, OR
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// - a theme with an update available is currently in use.
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// @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
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$maintenance = ( is_multisite() && ! empty( $themes ) );
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foreach ( $themes as $theme ) {
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$maintenance = $maintenance || $theme == get_stylesheet() || $theme == get_template();
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}
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if ( $maintenance ) {
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$this->maintenance_mode( true );
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}
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$results = array();
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$this->update_count = count( $themes );
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$this->update_current = 0;
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foreach ( $themes as $theme ) {
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$this->update_current++;
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$this->skin->theme_info = $this->theme_info( $theme );
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if ( ! isset( $current->response[ $theme ] ) ) {
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$this->skin->set_result( true );
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$this->skin->before();
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$this->skin->feedback( 'up_to_date' );
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$this->skin->after();
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$results[ $theme ] = true;
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continue;
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}
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// Get the URL to the zip file
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$r = $current->response[ $theme ];
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$result = $this->run(
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array(
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'package' => $r['package'],
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'destination' => get_theme_root( $theme ),
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'clear_destination' => true,
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'clear_working' => true,
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'is_multi' => true,
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'hook_extra' => array(
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'theme' => $theme,
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),
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)
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);
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$results[ $theme ] = $this->result;
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// Prevent credentials auth screen from displaying multiple times
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if ( false === $result ) {
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break;
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}
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} //end foreach $plugins
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$this->maintenance_mode( false );
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// Refresh the Theme Update information
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wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
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/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
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do_action(
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'upgrader_process_complete',
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$this,
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array(
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'action' => 'update',
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'type' => 'theme',
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'bulk' => true,
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'themes' => $themes,
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)
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);
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$this->skin->bulk_footer();
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$this->skin->footer();
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// Cleanup our hooks, in case something else does a upgrade on this connection.
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remove_filter( 'upgrader_pre_install', array( $this, 'current_before' ) );
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remove_filter( 'upgrader_post_install', array( $this, 'current_after' ) );
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remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ) );
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return $results;
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}
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/**
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* Check that the package source contains a valid theme.
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*
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* Hooked to the {@see 'upgrader_source_selection'} filter by Theme_Upgrader::install().
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* It will return an error if the theme doesn't have style.css or index.php
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* files.
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*
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* @since 3.3.0
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*
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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
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*
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* @param string $source The full path to the package source.
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* @return string|WP_Error The source or a WP_Error.
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*/
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public function check_package( $source ) {
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global $wp_filesystem;
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if ( is_wp_error( $source ) ) {
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return $source;
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}
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// Check the folder contains a valid theme
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$working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit( WP_CONTENT_DIR ), $source );
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if ( ! is_dir( $working_directory ) ) { // Sanity check, if the above fails, let's not prevent installation.
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return $source;
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}
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// A proper archive should have a style.css file in the single subdirectory
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if ( ! file_exists( $working_directory . 'style.css' ) ) {
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return new WP_Error(
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'incompatible_archive_theme_no_style',
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$this->strings['incompatible_archive'],
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sprintf(
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/* translators: %s: style.css */
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__( 'The theme is missing the %s stylesheet.' ),
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'<code>style.css</code>'
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)
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);
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}
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$info = get_file_data(
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$working_directory . 'style.css',
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array(
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'Name' => 'Theme Name',
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'Template' => 'Template',
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)
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);
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if ( empty( $info['Name'] ) ) {
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return new WP_Error(
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|
'incompatible_archive_theme_no_name',
|
|
$this->strings['incompatible_archive'],
|
|
sprintf(
|
|
/* translators: %s: style.css */
|
|
__( 'The %s stylesheet doesn’t contain a valid theme header.' ),
|
|
'<code>style.css</code>'
|
|
)
|
|
);
|
|
}
|
|
|
|
// If it's not a child theme, it must have at least an index.php to be legit.
|
|
if ( empty( $info['Template'] ) && ! file_exists( $working_directory . 'index.php' ) ) {
|
|
return new WP_Error(
|
|
'incompatible_archive_theme_no_index',
|
|
$this->strings['incompatible_archive'],
|
|
sprintf(
|
|
/* translators: %s: index.php */
|
|
__( 'The theme is missing the %s file.' ),
|
|
'<code>index.php</code>'
|
|
)
|
|
);
|
|
}
|
|
|
|
return $source;
|
|
}
|
|
|
|
/**
|
|
* Turn on maintenance mode before attempting to upgrade the current theme.
|
|
*
|
|
* Hooked to the {@see 'upgrader_pre_install'} filter by Theme_Upgrader::upgrade() and
|
|
* Theme_Upgrader::bulk_upgrade().
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param bool|WP_Error $return
|
|
* @param array $theme
|
|
* @return bool|WP_Error
|
|
*/
|
|
public function current_before( $return, $theme ) {
|
|
if ( is_wp_error( $return ) ) {
|
|
return $return;
|
|
}
|
|
|
|
$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
|
|
|
|
if ( $theme != get_stylesheet() ) { //If not current
|
|
return $return;
|
|
}
|
|
//Change to maintenance mode now.
|
|
if ( ! $this->bulk ) {
|
|
$this->maintenance_mode( true );
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Turn off maintenance mode after upgrading the current theme.
|
|
*
|
|
* Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::upgrade()
|
|
* and Theme_Upgrader::bulk_upgrade().
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param bool|WP_Error $return
|
|
* @param array $theme
|
|
* @return bool|WP_Error
|
|
*/
|
|
public function current_after( $return, $theme ) {
|
|
if ( is_wp_error( $return ) ) {
|
|
return $return;
|
|
}
|
|
|
|
$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
|
|
|
|
if ( $theme != get_stylesheet() ) { // If not current
|
|
return $return;
|
|
}
|
|
|
|
// Ensure stylesheet name hasn't changed after the upgrade:
|
|
if ( $theme == get_stylesheet() && $theme != $this->result['destination_name'] ) {
|
|
wp_clean_themes_cache();
|
|
$stylesheet = $this->result['destination_name'];
|
|
switch_theme( $stylesheet );
|
|
}
|
|
|
|
//Time to remove maintenance mode
|
|
if ( ! $this->bulk ) {
|
|
$this->maintenance_mode( false );
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Delete the old theme during an upgrade.
|
|
*
|
|
* Hooked to the {@see 'upgrader_clear_destination'} filter by Theme_Upgrader::upgrade()
|
|
* and Theme_Upgrader::bulk_upgrade().
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @global WP_Filesystem_Base $wp_filesystem Subclass
|
|
*
|
|
* @param bool $removed
|
|
* @param string $local_destination
|
|
* @param string $remote_destination
|
|
* @param array $theme
|
|
* @return bool
|
|
*/
|
|
public function delete_old_theme( $removed, $local_destination, $remote_destination, $theme ) {
|
|
global $wp_filesystem;
|
|
|
|
if ( is_wp_error( $removed ) ) {
|
|
return $removed; // Pass errors through.
|
|
}
|
|
|
|
if ( ! isset( $theme['theme'] ) ) {
|
|
return $removed;
|
|
}
|
|
|
|
$theme = $theme['theme'];
|
|
$themes_dir = trailingslashit( $wp_filesystem->wp_themes_dir( $theme ) );
|
|
if ( $wp_filesystem->exists( $themes_dir . $theme ) ) {
|
|
if ( ! $wp_filesystem->delete( $themes_dir . $theme, true ) ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get the WP_Theme object for a theme.
|
|
*
|
|
* @since 2.8.0
|
|
* @since 3.0.0 The `$theme` argument was added.
|
|
*
|
|
* @param string $theme The directory name of the theme. This is optional, and if not supplied,
|
|
* the directory name from the last result will be used.
|
|
* @return WP_Theme|false The theme's info object, or false `$theme` is not supplied
|
|
* and the last result isn't set.
|
|
*/
|
|
public function theme_info( $theme = null ) {
|
|
|
|
if ( empty( $theme ) ) {
|
|
if ( ! empty( $this->result['destination_name'] ) ) {
|
|
$theme = $this->result['destination_name'];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return wp_get_theme( $theme );
|
|
}
|
|
|
|
}
|