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<?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;

	/**
	 * Constructor.
	 *
	 * Sets up the theme installer skin.
	 *
	 * @since 2.8.0
	 *
	 * @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 );
	}

	/**
	 * Performs an action 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 True if the error should be hidden, false otherwise.
	 */
	public function hide_process_failed( $wp_error ) {
		if (
			'upload' === $this->type &&
			'' === $this->overwrite &&
			$wp_error->get_error_code() === 'folder_exists'
		) {
			return true;
		}

		return false;
	}

	/**
	 * Performs an action 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 ),
			_x( 'Activate', 'theme' ),
			/* 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 ) );
		}
	}

	/**
	 * Checks if the theme can be overwritten and outputs 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.' ),
				esc_html( wp_get_wp_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://developer.wordpress.org/advanced-administration/security/backup/' )
				);
			} 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://developer.wordpress.org/advanced-administration/security/backup/' )
				);
			}

			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;
	}
}

Filemanager

Name Type Size Permission Actions
admin-filters.php File 7.89 KB 0644
admin.php File 3.54 KB 0644
ajax-actions.php File 148.07 KB 0644
bookmark.php File 11.34 KB 0644
class-automatic-upgrader-skin.php File 3.58 KB 0644
class-bulk-plugin-upgrader-skin.php File 2.53 KB 0644
class-bulk-theme-upgrader-skin.php File 2.6 KB 0644
class-bulk-upgrader-skin.php File 6.59 KB 0644
class-core-upgrader.php File 14.83 KB 0644
class-custom-background.php File 21.11 KB 0644
class-custom-image-header.php File 47.91 KB 0644
class-file-upload-upgrader.php File 4.07 KB 0644
class-ftp-pure.php File 5.3 KB 0644
class-ftp-sockets.php File 8.28 KB 0644
class-ftp.php File 26.66 KB 0644
class-language-pack-upgrader-skin.php File 2.8 KB 0644
class-language-pack-upgrader.php File 15.2 KB 0644
class-pclzip.php File 192.09 KB 0644
class-plugin-installer-skin.php File 11.77 KB 0644
class-plugin-upgrader-skin.php File 3.2 KB 0644
class-plugin-upgrader.php File 22.7 KB 0644
class-theme-installer-skin.php File 12.44 KB 0644
class-theme-upgrader-skin.php File 4.08 KB 0644
class-theme-upgrader.php File 26.08 KB 0644
class-walker-category-checklist.php File 4.97 KB 0644
class-walker-nav-menu-checklist.php File 5.5 KB 0644
class-walker-nav-menu-edit.php File 13.85 KB 0644
class-wp-ajax-upgrader-skin.php File 4.09 KB 0644
class-wp-application-passwords-list-table.php File 6.79 KB 0644
class-wp-automatic-updater.php File 59.7 KB 0644
class-wp-comments-list-table.php File 32.15 KB 0644
class-wp-community-events.php File 18.33 KB 0644
class-wp-debug-data.php File 63.76 KB 0644
class-wp-filesystem-base.php File 23.84 KB 0644
class-wp-filesystem-direct.php File 17.72 KB 0644
class-wp-filesystem-ftpext.php File 22.56 KB 0644
class-wp-filesystem-ftpsockets.php File 18.05 KB 0644
class-wp-filesystem-ssh2.php File 22.76 KB 0644
class-wp-importer.php File 7.29 KB 0644
class-wp-internal-pointers.php File 4.47 KB 0644
class-wp-links-list-table.php File 9.02 KB 0644
class-wp-list-table-compat.php File 1.46 KB 0644
class-wp-list-table.php File 51.63 KB 0644
class-wp-media-list-table.php File 25.03 KB 0644
class-wp-ms-sites-list-table.php File 21.51 KB 0644
class-wp-ms-themes-list-table.php File 27.67 KB 0644
class-wp-ms-users-list-table.php File 14.93 KB 0644
class-wp-plugin-install-list-table.php File 24.21 KB 0644
class-wp-plugins-list-table.php File 56.43 KB 0644
class-wp-post-comments-list-table.php File 1.42 KB 0644
class-wp-posts-list-table.php File 62.45 KB 0644
class-wp-privacy-data-export-requests-list-table.php File 5.43 KB 0644
class-wp-privacy-data-removal-requests-list-table.php File 5.58 KB 0644
class-wp-privacy-policy-content.php File 32.01 KB 0644
class-wp-privacy-requests-table.php File 13.65 KB 0644
class-wp-screen.php File 36.45 KB 0644
class-wp-site-health-auto-updates.php File 13.24 KB 0644
class-wp-site-health.php File 119.5 KB 0644
class-wp-site-icon.php File 6.26 KB 0644
class-wp-terms-list-table.php File 20.69 KB 0644
class-wp-theme-install-list-table.php File 15.42 KB 0644
class-wp-themes-list-table.php File 10.1 KB 0644
class-wp-upgrader-skin.php File 6.94 KB 0644
class-wp-upgrader-skins.php File 1.44 KB 0644
class-wp-upgrader.php File 46.58 KB 0644
class-wp-users-list-table.php File 18.61 KB 0644
comment.php File 5.98 KB 0644
continents-cities.php File 20.06 KB 0644
credits.php File 5.73 KB 0644
dashboard.php File 68.08 KB 0644
deprecated.php File 40.8 KB 0644
edit-tag-messages.php File 1.44 KB 0644
export.php File 24.97 KB 0644
file.php File 95.19 KB 0644
image-edit.php File 42.82 KB 0644
image.php File 42.4 KB 0644
import.php File 6.46 KB 0644
list-table.php File 3.71 KB 0644
media.php File 116.08 KB 0644
menu.php File 9.39 KB 0644
meta-boxes.php File 64.54 KB 0644
misc.php File 45.38 KB 0644
ms-admin-filters.php File 1.27 KB 0644
ms-deprecated.php File 3.68 KB 0644
ms.php File 33.16 KB 0644
nav-menu.php File 47.76 KB 0644
network.php File 26.35 KB 0644
noop.php File 1.12 KB 0644
options.php File 4.15 KB 0644
plugin-install.php File 38.55 KB 0644
plugin.php File 90.75 KB 0644
post.php File 79.77 KB 0644
privacy-tools.php File 32.68 KB 0644
revision.php File 16.11 KB 0644
schema.php File 41.66 KB 0644
screen.php File 6.23 KB 0644
taxonomy.php File 8.23 KB 0644
template.php File 96.31 KB 0644
theme-install.php File 6.83 KB 0644
theme.php File 46.62 KB 0644
translation-install.php File 10.82 KB 0644
update-core.php File 67.71 KB 0644
update.php File 33.62 KB 0644
upgrade.php File 111.22 KB 0644
user.php File 22.96 KB 0644
widgets.php File 10.66 KB 0644