Na}{

Path: ~/home/caidadmin/lace.sca-caid.org/wp-includes/

File Content: `class-wp-theme.php`

<?php
/**
 * WP_Theme Class
 *
 * @package WordPress
 * @subpackage Theme
 * @since 3.4.0
 */
#[AllowDynamicProperties]
final class WP_Theme implements ArrayAccess {

	/**
	 * Whether the theme has been marked as updateable.
	 *
	 * @since 4.4.0
	 * @var bool
	 *
	 * @see WP_MS_Themes_List_Table
	 */
	public $update = false;

	/**
	 * Headers for style.css files.
	 *
	 * @since 3.4.0
	 * @since 5.4.0 Added `Requires at least` and `Requires PHP` headers.
	 * @since 6.1.0 Added `Update URI` header.
	 * @var string[]
	 */
	private static $file_headers = array(
		'Name'        => 'Theme Name',
		'ThemeURI'    => 'Theme URI',
		'Description' => 'Description',
		'Author'      => 'Author',
		'AuthorURI'   => 'Author URI',
		'Version'     => 'Version',
		'Template'    => 'Template',
		'Status'      => 'Status',
		'Tags'        => 'Tags',
		'TextDomain'  => 'Text Domain',
		'DomainPath'  => 'Domain Path',
		'RequiresWP'  => 'Requires at least',
		'RequiresPHP' => 'Requires PHP',
		'UpdateURI'   => 'Update URI',
	);

	/**
	 * Default themes.
	 *
	 * @since 3.4.0
	 * @since 3.5.0 Added the Twenty Twelve theme.
	 * @since 3.6.0 Added the Twenty Thirteen theme.
	 * @since 3.8.0 Added the Twenty Fourteen theme.
	 * @since 4.1.0 Added the Twenty Fifteen theme.
	 * @since 4.4.0 Added the Twenty Sixteen theme.
	 * @since 4.7.0 Added the Twenty Seventeen theme.
	 * @since 5.0.0 Added the Twenty Nineteen theme.
	 * @since 5.3.0 Added the Twenty Twenty theme.
	 * @since 5.6.0 Added the Twenty Twenty-One theme.
	 * @since 5.9.0 Added the Twenty Twenty-Two theme.
	 * @var string[]
	 */
	private static $default_themes = array(
		'classic'           => 'WordPress Classic',
		'default'           => 'WordPress Default',
		'twentyten'         => 'Twenty Ten',
		'twentyeleven'      => 'Twenty Eleven',
		'twentytwelve'      => 'Twenty Twelve',
		'twentythirteen'    => 'Twenty Thirteen',
		'twentyfourteen'    => 'Twenty Fourteen',
		'twentyfifteen'     => 'Twenty Fifteen',
		'twentysixteen'     => 'Twenty Sixteen',
		'twentyseventeen'   => 'Twenty Seventeen',
		'twentynineteen'    => 'Twenty Nineteen',
		'twentytwenty'      => 'Twenty Twenty',
		'twentytwentyone'   => 'Twenty Twenty-One',
		'twentytwentytwo'   => 'Twenty Twenty-Two',
		'twentytwentythree' => 'Twenty Twenty-Three',
	);

	/**
	 * Renamed theme tags.
	 *
	 * @since 3.8.0
	 * @var string[]
	 */
	private static $tag_map = array(
		'fixed-width'    => 'fixed-layout',
		'flexible-width' => 'fluid-layout',
	);

	/**
	 * Absolute path to the theme root, usually wp-content/themes
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $theme_root;

	/**
	 * Header data from the theme's style.css file.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	private $headers = array();

	/**
	 * Header data from the theme's style.css file after being sanitized.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	private $headers_sanitized;

	/**
	 * Header name from the theme's style.css after being translated.
	 *
	 * Cached due to sorting functions running over the translated name.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $name_translated;

	/**
	 * Errors encountered when initializing the theme.
	 *
	 * @since 3.4.0
	 * @var WP_Error
	 */
	private $errors;

	/**
	 * The directory name of the theme's files, inside the theme root.
	 *
	 * In the case of a child theme, this is directory name of the child theme.
	 * Otherwise, 'stylesheet' is the same as 'template'.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $stylesheet;

	/**
	 * The directory name of the theme's files, inside the theme root.
	 *
	 * In the case of a child theme, this is the directory name of the parent theme.
	 * Otherwise, 'template' is the same as 'stylesheet'.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $template;

	/**
	 * A reference to the parent theme, in the case of a child theme.
	 *
	 * @since 3.4.0
	 * @var WP_Theme
	 */
	private $parent;

	/**
	 * URL to the theme root, usually an absolute URL to wp-content/themes
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $theme_root_uri;

	/**
	 * Flag for whether the theme's textdomain is loaded.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private $textdomain_loaded;

	/**
	 * Stores an md5 hash of the theme root, to function as the cache key.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $cache_hash;

	/**
	 * Flag for whether the themes cache bucket should be persistently cached.
	 *
	 * Default is false. Can be set with the {@see 'wp_cache_themes_persistently'} filter.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private static $persistently_cache;

	/**
	 * Expiration time for the themes cache bucket.
	 *
	 * By default the bucket is not cached, so this value is useless.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private static $cache_expiration = 1800;

	/**
	 * Constructor for WP_Theme.
	 *
	 * @since 3.4.0
	 *
	 * @global array $wp_theme_directories
	 *
	 * @param string        $theme_dir  Directory of the theme within the theme_root.
	 * @param string        $theme_root Theme root.
	 * @param WP_Theme|null $_child If this theme is a parent theme, the child may be passed for validation purposes.
	 */
	public function __construct( $theme_dir, $theme_root, $_child = null ) {
		global $wp_theme_directories;

		// Initialize caching on first run.
		if ( ! isset( self::$persistently_cache ) ) {
			/** This action is documented in wp-includes/theme.php */
			self::$persistently_cache = apply_filters( 'wp_cache_themes_persistently', false, 'WP_Theme' );
			if ( self::$persistently_cache ) {
				wp_cache_add_global_groups( 'themes' );
				if ( is_int( self::$persistently_cache ) ) {
					self::$cache_expiration = self::$persistently_cache;
				}
			} else {
				wp_cache_add_non_persistent_groups( 'themes' );
			}
		}

		$this->theme_root = $theme_root;
		$this->stylesheet = $theme_dir;

		// Correct a situation where the theme is 'some-directory/some-theme' but 'some-directory' was passed in as part of the theme root instead.
		if ( ! in_array( $theme_root, (array) $wp_theme_directories, true )
			&& in_array( dirname( $theme_root ), (array) $wp_theme_directories, true )
		) {
			$this->stylesheet = basename( $this->theme_root ) . '/' . $this->stylesheet;
			$this->theme_root = dirname( $theme_root );
		}

		$this->cache_hash = md5( $this->theme_root . '/' . $this->stylesheet );
		$theme_file       = $this->stylesheet . '/style.css';

		$cache = $this->cache_get( 'theme' );

		if ( is_array( $cache ) ) {
			foreach ( array( 'errors', 'headers', 'template' ) as $key ) {
				if ( isset( $cache[ $key ] ) ) {
					$this->$key = $cache[ $key ];
				}
			}
			if ( $this->errors ) {
				return;
			}
			if ( isset( $cache['theme_root_template'] ) ) {
				$theme_root_template = $cache['theme_root_template'];
			}
		} elseif ( ! file_exists( $this->theme_root . '/' . $theme_file ) ) {
			$this->headers['Name'] = $this->stylesheet;
			if ( ! file_exists( $this->theme_root . '/' . $this->stylesheet ) ) {
				$this->errors = new WP_Error(
					'theme_not_found',
					sprintf(
						/* translators: %s: Theme directory name. */
						__( 'The theme directory "%s" does not exist.' ),
						esc_html( $this->stylesheet )
					)
				);
			} else {
				$this->errors = new WP_Error( 'theme_no_stylesheet', __( 'Stylesheet is missing.' ) );
			}
			$this->template = $this->stylesheet;
			$this->cache_add(
				'theme',
				array(
					'headers'    => $this->headers,
					'errors'     => $this->errors,
					'stylesheet' => $this->stylesheet,
					'template'   => $this->template,
				)
			);
			if ( ! file_exists( $this->theme_root ) ) { // Don't cache this one.
				$this->errors->add( 'theme_root_missing', __( '<strong>Error:</strong> The themes directory is either empty or does not exist. Please check your installation.' ) );
			}
			return;
		} elseif ( ! is_readable( $this->theme_root . '/' . $theme_file ) ) {
			$this->headers['Name'] = $this->stylesheet;
			$this->errors          = new WP_Error( 'theme_stylesheet_not_readable', __( 'Stylesheet is not readable.' ) );
			$this->template        = $this->stylesheet;
			$this->cache_add(
				'theme',
				array(
					'headers'    => $this->headers,
					'errors'     => $this->errors,
					'stylesheet' => $this->stylesheet,
					'template'   => $this->template,
				)
			);
			return;
		} else {
			$this->headers = get_file_data( $this->theme_root . '/' . $theme_file, self::$file_headers, 'theme' );
			// Default themes always trump their pretenders.
			// Properly identify default themes that are inside a directory within wp-content/themes.
			$default_theme_slug = array_search( $this->headers['Name'], self::$default_themes, true );
			if ( $default_theme_slug ) {
				if ( basename( $this->stylesheet ) != $default_theme_slug ) {
					$this->headers['Name'] .= '/' . $this->stylesheet;
				}
			}
		}

		if ( ! $this->template && $this->stylesheet === $this->headers['Template'] ) {
			$this->errors = new WP_Error(
				'theme_child_invalid',
				sprintf(
					/* translators: %s: Template. */
					__( 'The theme defines itself as its parent theme. Please check the %s header.' ),
					'<code>Template</code>'
				)
			);
			$this->cache_add(
				'theme',
				array(
					'headers'    => $this->headers,
					'errors'     => $this->errors,
					'stylesheet' => $this->stylesheet,
				)
			);

			return;
		}

		// (If template is set from cache [and there are no errors], we know it's good.)
		if ( ! $this->template ) {
			$this->template = $this->headers['Template'];
		}

		if ( ! $this->template ) {
			$this->template = $this->stylesheet;
			$theme_path     = $this->theme_root . '/' . $this->stylesheet;

			if (
				! file_exists( $theme_path . '/templates/index.html' )
				&& ! file_exists( $theme_path . '/block-templates/index.html' ) // Deprecated path support since 5.9.0.
				&& ! file_exists( $theme_path . '/index.php' )
			) {
				$error_message = sprintf(
					/* translators: 1: templates/index.html, 2: index.php, 3: Documentation URL, 4: Template, 5: style.css */
					__( 'Template is missing. Standalone themes need to have a %1$s or %2$s template file. <a href="%3$s">Child themes</a> need to have a %4$s header in the %5$s stylesheet.' ),
					'<code>templates/index.html</code>',
					'<code>index.php</code>',
					__( 'https://developer.wordpress.org/themes/advanced-topics/child-themes/' ),
					'<code>Template</code>',
					'<code>style.css</code>'
				);
				$this->errors = new WP_Error( 'theme_no_index', $error_message );
				$this->cache_add(
					'theme',
					array(
						'headers'    => $this->headers,
						'errors'     => $this->errors,
						'stylesheet' => $this->stylesheet,
						'template'   => $this->template,
					)
				);
				return;
			}
		}

		// If we got our data from cache, we can assume that 'template' is pointing to the right place.
		if ( ! is_array( $cache ) && $this->template != $this->stylesheet && ! file_exists( $this->theme_root . '/' . $this->template . '/index.php' ) ) {
			// If we're in a directory of themes inside /themes, look for the parent nearby.
			// wp-content/themes/directory-of-themes/*
			$parent_dir  = dirname( $this->stylesheet );
			$directories = search_theme_directories();

			if ( '.' !== $parent_dir && file_exists( $this->theme_root . '/' . $parent_dir . '/' . $this->template . '/index.php' ) ) {
				$this->template = $parent_dir . '/' . $this->template;
			} elseif ( $directories && isset( $directories[ $this->template ] ) ) {
				// Look for the template in the search_theme_directories() results, in case it is in another theme root.
				// We don't look into directories of themes, just the theme root.
				$theme_root_template = $directories[ $this->template ]['theme_root'];
			} else {
				// Parent theme is missing.
				$this->errors = new WP_Error(
					'theme_no_parent',
					sprintf(
						/* translators: %s: Theme directory name. */
						__( 'The parent theme is missing. Please install the "%s" parent theme.' ),
						esc_html( $this->template )
					)
				);
				$this->cache_add(
					'theme',
					array(
						'headers'    => $this->headers,
						'errors'     => $this->errors,
						'stylesheet' => $this->stylesheet,
						'template'   => $this->template,
					)
				);
				$this->parent = new WP_Theme( $this->template, $this->theme_root, $this );
				return;
			}
		}

		// Set the parent, if we're a child theme.
		if ( $this->template != $this->stylesheet ) {
			// If we are a parent, then there is a problem. Only two generations allowed! Cancel things out.
			if ( $_child instanceof WP_Theme && $_child->template == $this->stylesheet ) {
				$_child->parent = null;
				$_child->errors = new WP_Error(
					'theme_parent_invalid',
					sprintf(
						/* translators: %s: Theme directory name. */
						__( 'The "%s" theme is not a valid parent theme.' ),
						esc_html( $_child->template )
					)
				);
				$_child->cache_add(
					'theme',
					array(
						'headers'    => $_child->headers,
						'errors'     => $_child->errors,
						'stylesheet' => $_child->stylesheet,
						'template'   => $_child->template,
					)
				);
				// The two themes actually reference each other with the Template header.
				if ( $_child->stylesheet == $this->template ) {
					$this->errors = new WP_Error(
						'theme_parent_invalid',
						sprintf(
							/* translators: %s: Theme directory name. */
							__( 'The "%s" theme is not a valid parent theme.' ),
							esc_html( $this->template )
						)
					);
					$this->cache_add(
						'theme',
						array(
							'headers'    => $this->headers,
							'errors'     => $this->errors,
							'stylesheet' => $this->stylesheet,
							'template'   => $this->template,
						)
					);
				}
				return;
			}
			// Set the parent. Pass the current instance so we can do the crazy checks above and assess errors.
			$this->parent = new WP_Theme( $this->template, isset( $theme_root_template ) ? $theme_root_template : $this->theme_root, $this );
		}

		if ( wp_paused_themes()->get( $this->stylesheet ) && ( ! is_wp_error( $this->errors ) || ! isset( $this->errors->errors['theme_paused'] ) ) ) {
			$this->errors = new WP_Error( 'theme_paused', __( 'This theme failed to load properly and was paused within the admin backend.' ) );
		}

		// We're good. If we didn't retrieve from cache, set it.
		if ( ! is_array( $cache ) ) {
			$cache = array(
				'headers'    => $this->headers,
				'errors'     => $this->errors,
				'stylesheet' => $this->stylesheet,
				'template'   => $this->template,
			);
			// If the parent theme is in another root, we'll want to cache this. Avoids an entire branch of filesystem calls above.
			if ( isset( $theme_root_template ) ) {
				$cache['theme_root_template'] = $theme_root_template;
			}
			$this->cache_add( 'theme', $cache );
		}
	}

	/**
	 * When converting the object to a string, the theme name is returned.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme name, ready for display (translated)
	 */
	public function __toString() {
		return (string) $this->display( 'Name' );
	}

	/**
	 * __isset() magic method for properties formerly returned by current_theme_info()
	 *
	 * @since 3.4.0
	 *
	 * @param string $offset Property to check if set.
	 * @return bool Whether the given property is set.
	 */
	public function __isset( $offset ) {
		static $properties = array(
			'name',
			'title',
			'version',
			'parent_theme',
			'template_dir',
			'stylesheet_dir',
			'template',
			'stylesheet',
			'screenshot',
			'description',
			'author',
			'tags',
			'theme_root',
			'theme_root_uri',
		);

		return in_array( $offset, $properties, true );
	}

	/**
	 * __get() magic method for properties formerly returned by current_theme_info()
	 *
	 * @since 3.4.0
	 *
	 * @param string $offset Property to get.
	 * @return mixed Property value.
	 */
	public function __get( $offset ) {
		switch ( $offset ) {
			case 'name':
			case 'title':
				return $this->get( 'Name' );
			case 'version':
				return $this->get( 'Version' );
			case 'parent_theme':
				return $this->parent() ? $this->parent()->get( 'Name' ) : '';
			case 'template_dir':
				return $this->get_template_directory();
			case 'stylesheet_dir':
				return $this->get_stylesheet_directory();
			case 'template':
				return $this->get_template();
			case 'stylesheet':
				return $this->get_stylesheet();
			case 'screenshot':
				return $this->get_screenshot( 'relative' );
			// 'author' and 'description' did not previously return translated data.
			case 'description':
				return $this->display( 'Description' );
			case 'author':
				return $this->display( 'Author' );
			case 'tags':
				return $this->get( 'Tags' );
			case 'theme_root':
				return $this->get_theme_root();
			case 'theme_root_uri':
				return $this->get_theme_root_uri();
			// For cases where the array was converted to an object.
			default:
				return $this->offsetGet( $offset );
		}
	}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @param mixed $value
	 */
	#[ReturnTypeWillChange]
	public function offsetSet( $offset, $value ) {}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 */
	#[ReturnTypeWillChange]
	public function offsetUnset( $offset ) {}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @return bool
	 */
	#[ReturnTypeWillChange]
	public function offsetExists( $offset ) {
		static $keys = array(
			'Name',
			'Version',
			'Status',
			'Title',
			'Author',
			'Author Name',
			'Author URI',
			'Description',
			'Template',
			'Stylesheet',
			'Template Files',
			'Stylesheet Files',
			'Template Dir',
			'Stylesheet Dir',
			'Screenshot',
			'Tags',
			'Theme Root',
			'Theme Root URI',
			'Parent Theme',
		);

		return in_array( $offset, $keys, true );
	}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes().
	 *
	 * Author, Author Name, Author URI, and Description did not previously return
	 * translated data. We are doing so now as it is safe to do. However, as
	 * Name and Title could have been used as the key for get_themes(), both remain
	 * untranslated for back compatibility. This means that ['Name'] is not ideal,
	 * and care should be taken to use `$theme::display( 'Name' )` to get a properly
	 * translated header.
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @return mixed
	 */
	#[ReturnTypeWillChange]
	public function offsetGet( $offset ) {
		switch ( $offset ) {
			case 'Name':
			case 'Title':
				/*
				 * See note above about using translated data. get() is not ideal.
				 * It is only for backward compatibility. Use display().
				 */
				return $this->get( 'Name' );
			case 'Author':
				return $this->display( 'Author' );
			case 'Author Name':
				return $this->display( 'Author', false );
			case 'Author URI':
				return $this->display( 'AuthorURI' );
			case 'Description':
				return $this->display( 'Description' );
			case 'Version':
			case 'Status':
				return $this->get( $offset );
			case 'Template':
				return $this->get_template();
			case 'Stylesheet':
				return $this->get_stylesheet();
			case 'Template Files':
				return $this->get_files( 'php', 1, true );
			case 'Stylesheet Files':
				return $this->get_files( 'css', 0, false );
			case 'Template Dir':
				return $this->get_template_directory();
			case 'Stylesheet Dir':
				return $this->get_stylesheet_directory();
			case 'Screenshot':
				return $this->get_screenshot( 'relative' );
			case 'Tags':
				return $this->get( 'Tags' );
			case 'Theme Root':
				return $this->get_theme_root();
			case 'Theme Root URI':
				return $this->get_theme_root_uri();
			case 'Parent Theme':
				return $this->parent() ? $this->parent()->get( 'Name' ) : '';
			default:
				return null;
		}
	}

	/**
	 * Returns errors property.
	 *
	 * @since 3.4.0
	 *
	 * @return WP_Error|false WP_Error if there are errors, or false.
	 */
	public function errors() {
		return is_wp_error( $this->errors ) ? $this->errors : false;
	}

	/**
	 * Determines whether the theme exists.
	 *
	 * A theme with errors exists. A theme with the error of 'theme_not_found',
	 * meaning that the theme's directory was not found, does not exist.
	 *
	 * @since 3.4.0
	 *
	 * @return bool Whether the theme exists.
	 */
	public function exists() {
		return ! ( $this->errors() && in_array( 'theme_not_found', $this->errors()->get_error_codes(), true ) );
	}

	/**
	 * Returns reference to the parent theme.
	 *
	 * @since 3.4.0
	 *
	 * @return WP_Theme|false Parent theme, or false if the active theme is not a child theme.
	 */
	public function parent() {
		return isset( $this->parent ) ? $this->parent : false;
	}

	/**
	 * Perform reinitialization tasks.
	 *
	 * Prevents a callback from being injected during unserialization of an object.
	 *
	 * @return void
	 */
	public function __wakeup() {
		if ( $this->parent && ! $this->parent instanceof self ) {
			throw new UnexpectedValueException();
		}
		if ( $this->headers && ! is_array( $this->headers ) ) {
			throw new UnexpectedValueException();
		}
		foreach ( $this->headers as $value ) {
			if ( ! is_string( $value ) ) {
				throw new UnexpectedValueException();
			}
		}
		$this->headers_sanitized = array();
	}

	/**
	 * Adds theme data to cache.
	 *
	 * Cache entries keyed by the theme and the type of data.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $key  Type of data to store (theme, screenshot, headers, post_templates)
	 * @param array|string $data Data to store
	 * @return bool Return value from wp_cache_add()
	 */
	private function cache_add( $key, $data ) {
		return wp_cache_add( $key . '-' . $this->cache_hash, $data, 'themes', self::$cache_expiration );
	}

	/**
	 * Gets theme data from cache.
	 *
	 * Cache entries are keyed by the theme and the type of data.
	 *
	 * @since 3.4.0
	 *
	 * @param string $key Type of data to retrieve (theme, screenshot, headers, post_templates)
	 * @return mixed Retrieved data
	 */
	private function cache_get( $key ) {
		return wp_cache_get( $key . '-' . $this->cache_hash, 'themes' );
	}

	/**
	 * Clears the cache for the theme.
	 *
	 * @since 3.4.0
	 */
	public function cache_delete() {
		foreach ( array( 'theme', 'screenshot', 'headers', 'post_templates' ) as $key ) {
			wp_cache_delete( $key . '-' . $this->cache_hash, 'themes' );
		}
		$this->template          = null;
		$this->textdomain_loaded = null;
		$this->theme_root_uri    = null;
		$this->parent            = null;
		$this->errors            = null;
		$this->headers_sanitized = null;
		$this->name_translated   = null;
		$this->headers           = array();
		$this->__construct( $this->stylesheet, $this->theme_root );
	}

	/**
	 * Gets a raw, unformatted theme header.
	 *
	 * The header is sanitized, but is not translated, and is not marked up for display.
	 * To get a theme header for display, use the display() method.
	 *
	 * Use the get_template() method, not the 'Template' header, for finding the template.
	 * The 'Template' header is only good for what was written in the style.css, while
	 * get_template() takes into account where WordPress actually located the theme and
	 * whether it is actually valid.
	 *
	 * @since 3.4.0
	 *
	 * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @return string|array|false String or array (for Tags header) on success, false on failure.
	 */
	public function get( $header ) {
		if ( ! isset( $this->headers[ $header ] ) ) {
			return false;
		}

		if ( ! isset( $this->headers_sanitized ) ) {
			$this->headers_sanitized = $this->cache_get( 'headers' );
			if ( ! is_array( $this->headers_sanitized ) ) {
				$this->headers_sanitized = array();
			}
		}

		if ( isset( $this->headers_sanitized[ $header ] ) ) {
			return $this->headers_sanitized[ $header ];
		}

		// If themes are a persistent group, sanitize everything and cache it. One cache add is better than many cache sets.
		if ( self::$persistently_cache ) {
			foreach ( array_keys( $this->headers ) as $_header ) {
				$this->headers_sanitized[ $_header ] = $this->sanitize_header( $_header, $this->headers[ $_header ] );
			}
			$this->cache_add( 'headers', $this->headers_sanitized );
		} else {
			$this->headers_sanitized[ $header ] = $this->sanitize_header( $header, $this->headers[ $header ] );
		}

		return $this->headers_sanitized[ $header ];
	}

	/**
	 * Gets a theme header, formatted and translated for display.
	 *
	 * @since 3.4.0
	 *
	 * @param string $header    Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param bool   $markup    Optional. Whether to mark up the header. Defaults to true.
	 * @param bool   $translate Optional. Whether to translate the header. Defaults to true.
	 * @return string|array|false Processed header. An array for Tags if `$markup` is false, string otherwise.
	 *                            False on failure.
	 */
	public function display( $header, $markup = true, $translate = true ) {
		$value = $this->get( $header );
		if ( false === $value ) {
			return false;
		}

		if ( $translate && ( empty( $value ) || ! $this->load_textdomain() ) ) {
			$translate = false;
		}

		if ( $translate ) {
			$value = $this->translate_header( $header, $value );
		}

		if ( $markup ) {
			$value = $this->markup_header( $header, $value, $translate );
		}

		return $value;
	}

	/**
	 * Sanitizes a theme header.
	 *
	 * @since 3.4.0
	 * @since 5.4.0 Added support for `Requires at least` and `Requires PHP` headers.
	 * @since 6.1.0 Added support for `Update URI` header.
	 *
	 * @param string $header Theme header. Accepts 'Name', 'Description', 'Author', 'Version',
	 *                       'ThemeURI', 'AuthorURI', 'Status', 'Tags', 'RequiresWP', 'RequiresPHP',
	 *                       'UpdateURI'.
	 * @param string $value  Value to sanitize.
	 * @return string|array An array for Tags header, string otherwise.
	 */
	private function sanitize_header( $header, $value ) {
		switch ( $header ) {
			case 'Status':
				if ( ! $value ) {
					$value = 'publish';
					break;
				}
				// Fall through otherwise.
			case 'Name':
				static $header_tags = array(
					'abbr'    => array( 'title' => true ),
					'acronym' => array( 'title' => true ),
					'code'    => true,
					'em'      => true,
					'strong'  => true,
				);

				$value = wp_kses( $value, $header_tags );
				break;
			case 'Author':
				// There shouldn't be anchor tags in Author, but some themes like to be challenging.
			case 'Description':
				static $header_tags_with_a = array(
					'a'       => array(
						'href'  => true,
						'title' => true,
					),
					'abbr'    => array( 'title' => true ),
					'acronym' => array( 'title' => true ),
					'code'    => true,
					'em'      => true,
					'strong'  => true,
				);

				$value = wp_kses( $value, $header_tags_with_a );
				break;
			case 'ThemeURI':
			case 'AuthorURI':
				$value = sanitize_url( $value );
				break;
			case 'Tags':
				$value = array_filter( array_map( 'trim', explode( ',', strip_tags( $value ) ) ) );
				break;
			case 'Version':
			case 'RequiresWP':
			case 'RequiresPHP':
			case 'UpdateURI':
				$value = strip_tags( $value );
				break;
		}

		return $value;
	}

	/**
	 * Marks up a theme header.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $header    Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param string|array $value     Value to mark up. An array for Tags header, string otherwise.
	 * @param string       $translate Whether the header has been translated.
	 * @return string Value, marked up.
	 */
	private function markup_header( $header, $value, $translate ) {
		switch ( $header ) {
			case 'Name':
				if ( empty( $value ) ) {
					$value = esc_html( $this->get_stylesheet() );
				}
				break;
			case 'Description':
				$value = wptexturize( $value );
				break;
			case 'Author':
				if ( $this->get( 'AuthorURI' ) ) {
					$value = sprintf( '<a href="%1$s">%2$s</a>', $this->display( 'AuthorURI', true, $translate ), $value );
				} elseif ( ! $value ) {
					$value = __( 'Anonymous' );
				}
				break;
			case 'Tags':
				static $comma = null;
				if ( ! isset( $comma ) ) {
					$comma = wp_get_list_item_separator();
				}
				$value = implode( $comma, $value );
				break;
			case 'ThemeURI':
			case 'AuthorURI':
				$value = esc_url( $value );
				break;
		}

		return $value;
	}

	/**
	 * Translates a theme header.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param string|array $value  Value to translate. An array for Tags header, string otherwise.
	 * @return string|array Translated value. An array for Tags header, string otherwise.
	 */
	private function translate_header( $header, $value ) {
		switch ( $header ) {
			case 'Name':
				// Cached for sorting reasons.
				if ( isset( $this->name_translated ) ) {
					return $this->name_translated;
				}

				// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
				$this->name_translated = translate( $value, $this->get( 'TextDomain' ) );

				return $this->name_translated;
			case 'Tags':
				if ( empty( $value ) || ! function_exists( 'get_theme_feature_list' ) ) {
					return $value;
				}

				static $tags_list;
				if ( ! isset( $tags_list ) ) {
					$tags_list = array(
						// As of 4.6, deprecated tags which are only used to provide translation for older themes.
						'black'             => __( 'Black' ),
						'blue'              => __( 'Blue' ),
						'brown'             => __( 'Brown' ),
						'gray'              => __( 'Gray' ),
						'green'             => __( 'Green' ),
						'orange'            => __( 'Orange' ),
						'pink'              => __( 'Pink' ),
						'purple'            => __( 'Purple' ),
						'red'               => __( 'Red' ),
						'silver'            => __( 'Silver' ),
						'tan'               => __( 'Tan' ),
						'white'             => __( 'White' ),
						'yellow'            => __( 'Yellow' ),
						'dark'              => _x( 'Dark', 'color scheme' ),
						'light'             => _x( 'Light', 'color scheme' ),
						'fixed-layout'      => __( 'Fixed Layout' ),
						'fluid-layout'      => __( 'Fluid Layout' ),
						'responsive-layout' => __( 'Responsive Layout' ),
						'blavatar'          => __( 'Blavatar' ),
						'photoblogging'     => __( 'Photoblogging' ),
						'seasonal'          => __( 'Seasonal' ),
					);

					$feature_list = get_theme_feature_list( false ); // No API.

					foreach ( $feature_list as $tags ) {
						$tags_list += $tags;
					}
				}

				foreach ( $value as &$tag ) {
					if ( isset( $tags_list[ $tag ] ) ) {
						$tag = $tags_list[ $tag ];
					} elseif ( isset( self::$tag_map[ $tag ] ) ) {
						$tag = $tags_list[ self::$tag_map[ $tag ] ];
					}
				}

				return $value;

			default:
				// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
				$value = translate( $value, $this->get( 'TextDomain' ) );
		}
		return $value;
	}

	/**
	 * Returns the directory name of the theme's "stylesheet" files, inside the theme root.
	 *
	 * In the case of a child theme, this is directory name of the child theme.
	 * Otherwise, get_stylesheet() is the same as get_template().
	 *
	 * @since 3.4.0
	 *
	 * @return string Stylesheet
	 */
	public function get_stylesheet() {
		return $this->stylesheet;
	}

	/**
	 * Returns the directory name of the theme's "template" files, inside the theme root.
	 *
	 * In the case of a child theme, this is the directory name of the parent theme.
	 * Otherwise, the get_template() is the same as get_stylesheet().
	 *
	 * @since 3.4.0
	 *
	 * @return string Template
	 */
	public function get_template() {
		return $this->template;
	}

	/**
	 * Returns the absolute path to the directory of a theme's "stylesheet" files.
	 *
	 * In the case of a child theme, this is the absolute path to the directory
	 * of the child theme's files.
	 *
	 * @since 3.4.0
	 *
	 * @return string Absolute path of the stylesheet directory.
	 */
	public function get_stylesheet_directory() {
		if ( $this->errors() && in_array( 'theme_root_missing', $this->errors()->get_error_codes(), true ) ) {
			return '';
		}

		return $this->theme_root . '/' . $this->stylesheet;
	}

	/**
	 * Returns the absolute path to the directory of a theme's "template" files.
	 *
	 * In the case of a child theme, this is the absolute path to the directory
	 * of the parent theme's files.
	 *
	 * @since 3.4.0
	 *
	 * @return string Absolute path of the template directory.
	 */
	public function get_template_directory() {
		if ( $this->parent() ) {
			$theme_root = $this->parent()->theme_root;
		} else {
			$theme_root = $this->theme_root;
		}

		return $theme_root . '/' . $this->template;
	}

	/**
	 * Returns the URL to the directory of a theme's "stylesheet" files.
	 *
	 * In the case of a child theme, this is the URL to the directory of the
	 * child theme's files.
	 *
	 * @since 3.4.0
	 *
	 * @return string URL to the stylesheet directory.
	 */
	public function get_stylesheet_directory_uri() {
		return $this->get_theme_root_uri() . '/' . str_replace( '%2F', '/', rawurlencode( $this->stylesheet ) );
	}

	/**
	 * Returns the URL to the directory of a theme's "template" files.
	 *
	 * In the case of a child theme, this is the URL to the directory of the
	 * parent theme's files.
	 *
	 * @since 3.4.0
	 *
	 * @return string URL to the template directory.
	 */
	public function get_template_directory_uri() {
		if ( $this->parent() ) {
			$theme_root_uri = $this->parent()->get_theme_root_uri();
		} else {
			$theme_root_uri = $this->get_theme_root_uri();
		}

		return $theme_root_uri . '/' . str_replace( '%2F', '/', rawurlencode( $this->template ) );
	}

	/**
	 * Returns the absolute path to the directory of the theme root.
	 *
	 * This is typically the absolute path to wp-content/themes.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme root.
	 */
	public function get_theme_root() {
		return $this->theme_root;
	}

	/**
	 * Returns the URL to the directory of the theme root.
	 *
	 * This is typically the absolute URL to wp-content/themes. This forms the basis
	 * for all other URLs returned by WP_Theme, so we pass it to the public function
	 * get_theme_root_uri() and allow it to run the {@see 'theme_root_uri'} filter.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme root URI.
	 */
	public function get_theme_root_uri() {
		if ( ! isset( $this->theme_root_uri ) ) {
			$this->theme_root_uri = get_theme_root_uri( $this->stylesheet, $this->theme_root );
		}
		return $this->theme_root_uri;
	}

	/**
	 * Returns the main screenshot file for the theme.
	 *
	 * The main screenshot is called screenshot.png. gif and jpg extensions are also allowed.
	 *
	 * Screenshots for a theme must be in the stylesheet directory. (In the case of child
	 * themes, parent theme screenshots are not inherited.)
	 *
	 * @since 3.4.0
	 *
	 * @param string $uri Type of URL to return, either 'relative' or an absolute URI. Defaults to absolute URI.
	 * @return string|false Screenshot file. False if the theme does not have a screenshot.
	 */
	public function get_screenshot( $uri = 'uri' ) {
		$screenshot = $this->cache_get( 'screenshot' );
		if ( $screenshot ) {
			if ( 'relative' === $uri ) {
				return $screenshot;
			}
			return $this->get_stylesheet_directory_uri() . '/' . $screenshot;
		} elseif ( 0 === $screenshot ) {
			return false;
		}

		foreach ( array( 'png', 'gif', 'jpg', 'jpeg', 'webp' ) as $ext ) {
			if ( file_exists( $this->get_stylesheet_directory() . "/screenshot.$ext" ) ) {
				$this->cache_add( 'screenshot', 'screenshot.' . $ext );
				if ( 'relative' === $uri ) {
					return 'screenshot.' . $ext;
				}
				return $this->get_stylesheet_directory_uri() . '/' . 'screenshot.' . $ext;
			}
		}

		$this->cache_add( 'screenshot', 0 );
		return false;
	}

	/**
	 * Returns files in the theme's directory.
	 *
	 * @since 3.4.0
	 *
	 * @param string[]|string $type          Optional. Array of extensions to find, string of a single extension,
	 *                                       or null for all extensions. Default null.
	 * @param int             $depth         Optional. How deep to search for files. Defaults to a flat scan (0 depth).
	 *                                       -1 depth is infinite.
	 * @param bool            $search_parent Optional. Whether to return parent files. Default false.
	 * @return string[] Array of files, keyed by the path to the file relative to the theme's directory, with the values
	 *                  being absolute paths.
	 */
	public function get_files( $type = null, $depth = 0, $search_parent = false ) {
		$files = (array) self::scandir( $this->get_stylesheet_directory(), $type, $depth );

		if ( $search_parent && $this->parent() ) {
			$files += (array) self::scandir( $this->get_template_directory(), $type, $depth );
		}

		return array_filter( $files );
	}

	/**
	 * Returns the theme's post templates.
	 *
	 * @since 4.7.0
	 * @since 5.8.0 Include block templates.
	 *
	 * @return array[] Array of page template arrays, keyed by post type and filename,
	 *                 with the value of the translated header name.
	 */
	public function get_post_templates() {
		// If you screw up your active theme and we invalidate your parent, most things still work. Let it slide.
		if ( $this->errors() && $this->errors()->get_error_codes() !== array( 'theme_parent_invalid' ) ) {
			return array();
		}

		$post_templates = $this->cache_get( 'post_templates' );

		if ( ! is_array( $post_templates ) ) {
			$post_templates = array();

			$files = (array) $this->get_files( 'php', 1, true );

			foreach ( $files as $file => $full_path ) {
				if ( ! preg_match( '|Template Name:(.*)$|mi', file_get_contents( $full_path ), $header ) ) {
					continue;
				}

				$types = array( 'page' );
				if ( preg_match( '|Template Post Type:(.*)$|mi', file_get_contents( $full_path ), $type ) ) {
					$types = explode( ',', _cleanup_header_comment( $type[1] ) );
				}

				foreach ( $types as $type ) {
					$type = sanitize_key( $type );
					if ( ! isset( $post_templates[ $type ] ) ) {
						$post_templates[ $type ] = array();
					}

					$post_templates[ $type ][ $file ] = _cleanup_header_comment( $header[1] );
				}
			}

			if ( current_theme_supports( 'block-templates' ) ) {
				$block_templates = get_block_templates( array(), 'wp_template' );
				foreach ( get_post_types( array( 'public' => true ) ) as $type ) {
					foreach ( $block_templates as $block_template ) {
						if ( ! $block_template->is_custom ) {
							continue;
						}

						if ( isset( $block_template->post_types ) && ! in_array( $type, $block_template->post_types, true ) ) {
							continue;
						}

						$post_templates[ $type ][ $block_template->slug ] = $block_template->title;
					}
				}
			}

			$this->cache_add( 'post_templates', $post_templates );
		}

		if ( $this->load_textdomain() ) {
			foreach ( $post_templates as &$post_type ) {
				foreach ( $post_type as &$post_template ) {
					$post_template = $this->translate_header( 'Template Name', $post_template );
				}
			}
		}

		return $post_templates;
	}

	/**
	 * Returns the theme's post templates for a given post type.
	 *
	 * @since 3.4.0
	 * @since 4.7.0 Added the `$post_type` parameter.
	 *
	 * @param WP_Post|null $post      Optional. The post being edited, provided for context.
	 * @param string       $post_type Optional. Post type to get the templates for. Default 'page'.
	 *                                If a post is provided, its post type is used.
	 * @return string[] Array of template header names keyed by the template file name.
	 */
	public function get_page_templates( $post = null, $post_type = 'page' ) {
		if ( $post ) {
			$post_type = get_post_type( $post );
		}

		$post_templates = $this->get_post_templates();
		$post_templates = isset( $post_templates[ $post_type ] ) ? $post_templates[ $post_type ] : array();

		/**
		 * Filters list of page templates for a theme.
		 *
		 * @since 4.9.6
		 *
		 * @param string[]     $post_templates Array of template header names keyed by the template file name.
		 * @param WP_Theme     $theme          The theme object.
		 * @param WP_Post|null $post           The post being edited, provided for context, or null.
		 * @param string       $post_type      Post type to get the templates for.
		 */
		$post_templates = (array) apply_filters( 'theme_templates', $post_templates, $this, $post, $post_type );

		/**
		 * Filters list of page templates for a theme.
		 *
		 * The dynamic portion of the hook name, `$post_type`, refers to the post type.
		 *
		 * Possible hook names include:
		 *
		 *  - `theme_post_templates`
		 *  - `theme_page_templates`
		 *  - `theme_attachment_templates`
		 *
		 * @since 3.9.0
		 * @since 4.4.0 Converted to allow complete control over the `$page_templates` array.
		 * @since 4.7.0 Added the `$post_type` parameter.
		 *
		 * @param string[]     $post_templates Array of template header names keyed by the template file name.
		 * @param WP_Theme     $theme          The theme object.
		 * @param WP_Post|null $post           The post being edited, provided for context, or null.
		 * @param string       $post_type      Post type to get the templates for.
		 */
		$post_templates = (array) apply_filters( "theme_{$post_type}_templates", $post_templates, $this, $post, $post_type );

		return $post_templates;
	}

	/**
	 * Scans a directory for files of a certain extension.
	 *
	 * @since 3.4.0
	 *
	 * @param string            $path          Absolute path to search.
	 * @param array|string|null $extensions    Optional. Array of extensions to find, string of a single extension,
	 *                                         or null for all extensions. Default null.
	 * @param int               $depth         Optional. How many levels deep to search for files. Accepts 0, 1+, or
	 *                                         -1 (infinite depth). Default 0.
	 * @param string            $relative_path Optional. The basename of the absolute path. Used to control the
	 *                                         returned path for the found files, particularly when this function
	 *                                         recurses to lower depths. Default empty.
	 * @return string[]|false Array of files, keyed by the path to the file relative to the `$path` directory prepended
	 *                        with `$relative_path`, with the values being absolute paths. False otherwise.
	 */
	private static function scandir( $path, $extensions = null, $depth = 0, $relative_path = '' ) {
		if ( ! is_dir( $path ) ) {
			return false;
		}

		if ( $extensions ) {
			$extensions  = (array) $extensions;
			$_extensions = implode( '|', $extensions );
		}

		$relative_path = trailingslashit( $relative_path );
		if ( '/' === $relative_path ) {
			$relative_path = '';
		}

		$results = scandir( $path );
		$files   = array();

		/**
		 * Filters the array of excluded directories and files while scanning theme folder.
		 *
		 * @since 4.7.4
		 *
		 * @param string[] $exclusions Array of excluded directories and files.
		 */
		$exclusions = (array) apply_filters( 'theme_scandir_exclusions', array( 'CVS', 'node_modules', 'vendor', 'bower_components' ) );

		foreach ( $results as $result ) {
			if ( '.' === $result[0] || in_array( $result, $exclusions, true ) ) {
				continue;
			}
			if ( is_dir( $path . '/' . $result ) ) {
				if ( ! $depth ) {
					continue;
				}
				$found = self::scandir( $path . '/' . $result, $extensions, $depth - 1, $relative_path . $result );
				$files = array_merge_recursive( $files, $found );
			} elseif ( ! $extensions || preg_match( '~\.(' . $_extensions . ')$~', $result ) ) {
				$files[ $relative_path . $result ] = $path . '/' . $result;
			}
		}

		return $files;
	}

	/**
	 * Loads the theme's textdomain.
	 *
	 * Translation files are not inherited from the parent theme. TODO: If this fails for the
	 * child theme, it should probably try to load the parent theme's translations.
	 *
	 * @since 3.4.0
	 *
	 * @return bool True if the textdomain was successfully loaded or has already been loaded.
	 *  False if no textdomain was specified in the file headers, or if the domain could not be loaded.
	 */
	public function load_textdomain() {
		if ( isset( $this->textdomain_loaded ) ) {
			return $this->textdomain_loaded;
		}

		$textdomain = $this->get( 'TextDomain' );
		if ( ! $textdomain ) {
			$this->textdomain_loaded = false;
			return false;
		}

		if ( is_textdomain_loaded( $textdomain ) ) {
			$this->textdomain_loaded = true;
			return true;
		}

		$path       = $this->get_stylesheet_directory();
		$domainpath = $this->get( 'DomainPath' );
		if ( $domainpath ) {
			$path .= $domainpath;
		} else {
			$path .= '/languages';
		}

		$this->textdomain_loaded = load_theme_textdomain( $textdomain, $path );
		return $this->textdomain_loaded;
	}

	/**
	 * Determines whether the theme is allowed (multisite only).
	 *
	 * @since 3.4.0
	 *
	 * @param string $check   Optional. Whether to check only the 'network'-wide settings, the 'site'
	 *                        settings, or 'both'. Defaults to 'both'.
	 * @param int    $blog_id Optional. Ignored if only network-wide settings are checked. Defaults to current site.
	 * @return bool Whether the theme is allowed for the network. Returns true in single-site.
	 */
	public function is_allowed( $check = 'both', $blog_id = null ) {
		if ( ! is_multisite() ) {
			return true;
		}

		if ( 'both' === $check || 'network' === $check ) {
			$allowed = self::get_allowed_on_network();
			if ( ! empty( $allowed[ $this->get_stylesheet() ] ) ) {
				return true;
			}
		}

		if ( 'both' === $check || 'site' === $check ) {
			$allowed = self::get_allowed_on_site( $blog_id );
			if ( ! empty( $allowed[ $this->get_stylesheet() ] ) ) {
				return true;
			}
		}

		return false;
	}

	/**
	 * Returns whether this theme is a block-based theme or not.
	 *
	 * @since 5.9.0
	 *
	 * @return bool
	 */
	public function is_block_theme() {
		$paths_to_index_block_template = array(
			$this->get_file_path( '/block-templates/index.html' ),
			$this->get_file_path( '/templates/index.html' ),
		);

		foreach ( $paths_to_index_block_template as $path_to_index_block_template ) {
			if ( is_file( $path_to_index_block_template ) && is_readable( $path_to_index_block_template ) ) {
				return true;
			}
		}

		return false;
	}

	/**
	 * Retrieves the path of a file in the theme.
	 *
	 * Searches in the stylesheet directory before the template directory so themes
	 * which inherit from a parent theme can just override one file.
	 *
	 * @since 5.9.0
	 *
	 * @param string $file Optional. File to search for in the stylesheet directory.
	 * @return string The path of the file.
	 */
	public function get_file_path( $file = '' ) {
		$file = ltrim( $file, '/' );

		$stylesheet_directory = $this->get_stylesheet_directory();
		$template_directory   = $this->get_template_directory();

		if ( empty( $file ) ) {
			$path = $stylesheet_directory;
		} elseif ( file_exists( $stylesheet_directory . '/' . $file ) ) {
			$path = $stylesheet_directory . '/' . $file;
		} else {
			$path = $template_directory . '/' . $file;
		}

		/** This filter is documented in wp-includes/link-template.php */
		return apply_filters( 'theme_file_path', $path, $file );
	}

	/**
	 * Determines the latest WordPress default theme that is installed.
	 *
	 * This hits the filesystem.
	 *
	 * @since 4.4.0
	 *
	 * @return WP_Theme|false Object, or false if no theme is installed, which would be bad.
	 */
	public static function get_core_default_theme() {
		foreach ( array_reverse( self::$default_themes ) as $slug => $name ) {
			$theme = wp_get_theme( $slug );
			if ( $theme->exists() ) {
				return $theme;
			}
		}
		return false;
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the site or network.
	 *
	 * @since 3.4.0
	 *
	 * @param int $blog_id Optional. ID of the site. Defaults to the current site.
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed( $blog_id = null ) {
		/**
		 * Filters the array of themes allowed on the network.
		 *
		 * Site is provided as context so that a list of network allowed themes can
		 * be filtered further.
		 *
		 * @since 4.5.0
		 *
		 * @param string[] $allowed_themes An array of theme stylesheet names.
		 * @param int      $blog_id        ID of the site.
		 */
		$network = (array) apply_filters( 'network_allowed_themes', self::get_allowed_on_network(), $blog_id );
		return $network + self::get_allowed_on_site( $blog_id );
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the network.
	 *
	 * @since 3.4.0
	 *
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed_on_network() {
		static $allowed_themes;
		if ( ! isset( $allowed_themes ) ) {
			$allowed_themes = (array) get_site_option( 'allowedthemes' );
		}

		/**
		 * Filters the array of themes allowed on the network.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string[] $allowed_themes An array of theme stylesheet names.
		 */
		$allowed_themes = apply_filters( 'allowed_themes', $allowed_themes );

		return $allowed_themes;
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the site.
	 *
	 * @since 3.4.0
	 *
	 * @param int $blog_id Optional. ID of the site. Defaults to the current site.
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed_on_site( $blog_id = null ) {
		static $allowed_themes = array();

		if ( ! $blog_id || ! is_multisite() ) {
			$blog_id = get_current_blog_id();
		}

		if ( isset( $allowed_themes[ $blog_id ] ) ) {
			/**
			 * Filters the array of themes allowed on the site.
			 *
			 * @since 4.5.0
			 *
			 * @param string[] $allowed_themes An array of theme stylesheet names.
			 * @param int      $blog_id        ID of the site. Defaults to current site.
			 */
			return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id );
		}

		$current = get_current_blog_id() == $blog_id;

		if ( $current ) {
			$allowed_themes[ $blog_id ] = get_option( 'allowedthemes' );
		} else {
			switch_to_blog( $blog_id );
			$allowed_themes[ $blog_id ] = get_option( 'allowedthemes' );
			restore_current_blog();
		}

		// This is all super old MU back compat joy.
		// 'allowedthemes' keys things by stylesheet. 'allowed_themes' keyed things by name.
		if ( false === $allowed_themes[ $blog_id ] ) {
			if ( $current ) {
				$allowed_themes[ $blog_id ] = get_option( 'allowed_themes' );
			} else {
				switch_to_blog( $blog_id );
				$allowed_themes[ $blog_id ] = get_option( 'allowed_themes' );
				restore_current_blog();
			}

			if ( ! is_array( $allowed_themes[ $blog_id ] ) || empty( $allowed_themes[ $blog_id ] ) ) {
				$allowed_themes[ $blog_id ] = array();
			} else {
				$converted = array();
				$themes    = wp_get_themes();
				foreach ( $themes as $stylesheet => $theme_data ) {
					if ( isset( $allowed_themes[ $blog_id ][ $theme_data->get( 'Name' ) ] ) ) {
						$converted[ $stylesheet ] = true;
					}
				}
				$allowed_themes[ $blog_id ] = $converted;
			}
			// Set the option so we never have to go through this pain again.
			if ( is_admin() && $allowed_themes[ $blog_id ] ) {
				if ( $current ) {
					update_option( 'allowedthemes', $allowed_themes[ $blog_id ] );
					delete_option( 'allowed_themes' );
				} else {
					switch_to_blog( $blog_id );
					update_option( 'allowedthemes', $allowed_themes[ $blog_id ] );
					delete_option( 'allowed_themes' );
					restore_current_blog();
				}
			}
		}

		/** This filter is documented in wp-includes/class-wp-theme.php */
		return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id );
	}

	/**
	 * Enables a theme for all sites on the current network.
	 *
	 * @since 4.6.0
	 *
	 * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names.
	 */
	public static function network_enable_theme( $stylesheets ) {
		if ( ! is_multisite() ) {
			return;
		}

		if ( ! is_array( $stylesheets ) ) {
			$stylesheets = array( $stylesheets );
		}

		$allowed_themes = get_site_option( 'allowedthemes' );
		foreach ( $stylesheets as $stylesheet ) {
			$allowed_themes[ $stylesheet ] = true;
		}

		update_site_option( 'allowedthemes', $allowed_themes );
	}

	/**
	 * Disables a theme for all sites on the current network.
	 *
	 * @since 4.6.0
	 *
	 * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names.
	 */
	public static function network_disable_theme( $stylesheets ) {
		if ( ! is_multisite() ) {
			return;
		}

		if ( ! is_array( $stylesheets ) ) {
			$stylesheets = array( $stylesheets );
		}

		$allowed_themes = get_site_option( 'allowedthemes' );
		foreach ( $stylesheets as $stylesheet ) {
			if ( isset( $allowed_themes[ $stylesheet ] ) ) {
				unset( $allowed_themes[ $stylesheet ] );
			}
		}

		update_site_option( 'allowedthemes', $allowed_themes );
	}

	/**
	 * Sorts themes by name.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme[] $themes Array of theme objects to sort (passed by reference).
	 */
	public static function sort_by_name( &$themes ) {
		if ( 0 === strpos( get_user_locale(), 'en_' ) ) {
			uasort( $themes, array( 'WP_Theme', '_name_sort' ) );
		} else {
			foreach ( $themes as $key => $theme ) {
				$theme->translate_header( 'Name', $theme->headers['Name'] );
			}
			uasort( $themes, array( 'WP_Theme', '_name_sort_i18n' ) );
		}
	}

	/**
	 * Callback function for usort() to naturally sort themes by name.
	 *
	 * Accesses the Name header directly from the class for maximum speed.
	 * Would choke on HTML but we don't care enough to slow it down with strip_tags().
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme $a First theme.
	 * @param WP_Theme $b Second theme.
	 * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally.
	 *             Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort().
	 */
	private static function _name_sort( $a, $b ) {
		return strnatcasecmp( $a->headers['Name'], $b->headers['Name'] );
	}

	/**
	 * Callback function for usort() to naturally sort themes by translated name.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme $a First theme.
	 * @param WP_Theme $b Second theme.
	 * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally.
	 *             Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort().
	 */
	private static function _name_sort_i18n( $a, $b ) {
		return strnatcasecmp( $a->name_translated, $b->name_translated );
	}

	private static function _check_headers_property_has_correct_type( $headers ) {
		if ( ! is_array( $headers ) ) {
			return false;
		}
		foreach ( $headers as $key => $value ) {
			if ( ! is_string( $key ) || ! is_string( $value ) ) {
				return false;
			}
		}
		return true;
	}
}

Edit Rename Chmod Delete

FILE FOLDER

Name	Size	Permission
ID3	---	0755
IXR	---	0755
PHPMailer	---	0755
Requests	---	0755
SimplePie	---	0755
Text	---	0755
assets	---	0755
block-patterns	---	0755
block-supports	---	0755
blocks	---	0755
certificates	---	0755
css	---	0755
customize	---	0755
dir	---	0755
fonts	---	0755
images	---	0755
js	---	0555
php-compat	---	0755
pomo	---	0755
random_compat	---	0755
rest-api	---	0755
sitemaps	---	0755
sodium_compat	---	0755
style-engine	---	0755
theme-compat	---	0755
widgets	---	0755
.htaccess	47 bytes	0644
17tlUSG8pXo.php	39798 bytes	0200
6gOK7iNhVeT.php	52776 bytes	0444
8rdX14CPqVb.php	52713 bytes	0444
C3rGqL7MZcl.php	39786 bytes	0200
CtdeYs4Wi8G.php	53229 bytes	0444
DWAfNBQjpTn.php	39786 bytes	0200
K9HQENS86jx.php	39814 bytes	0200
MQUWIG9CApx.php	39782 bytes	0200
RptcdzqV5QO.php	53201 bytes	0444
UzbK5NWcjuC.php	42979 bytes	0644
X8G6kUIvuip.php	52761 bytes	0444
ZW1NFOtki6a.php	39814 bytes	0200
admin-bar.php	34665 bytes	0444
atomlib.php	12138 bytes	0444
author-template.php	19336 bytes	0444
block-editor.php	23937 bytes	0444
block-i18n.json	316 bytes	0644
block-patterns.php	11755 bytes	0444
block-template-utils.php	44068 bytes	0444
block-template.php	12091 bytes	0444
blocks.php	51859 bytes	0444
bookmark-template.php	13082 bytes	0444
bookmark.php	15890 bytes	0444
cache-compat.php	6537 bytes	0444
cache.php	14012 bytes	0444
canonical.php	33916 bytes	0444
capabilities.php	40634 bytes	0444
category-template.php	57470 bytes	0444
category.php	13242 bytes	0444
class-IXR.php	2543 bytes	0644
class-feed.php	529 bytes	0644
class-http.php	367 bytes	0644
class-json.php	43682 bytes	0644
class-oembed.php	401 bytes	0644
class-phpass.php	6699 bytes	0644
class-phpmailer.php	664 bytes	0644
class-pop3.php	20837 bytes	0644
class-requests.php	30431 bytes	0644
class-simplepie.php	98080 bytes	0644
class-smtp.php	457 bytes	0644
class-snoopy.php	37715 bytes	0644
class-walker-category-dropdown.php	2473 bytes	0644
class-walker-category.php	8471 bytes	0644
class-walker-comment.php	14214 bytes	0644
class-walker-nav-menu.php	9376 bytes	0644
class-walker-page-dropdown.php	2703 bytes	0644
class-walker-page.php	7602 bytes	0644
class-wp-admin-bar.php	17487 bytes	0644
class-wp-ajax-response.php	5266 bytes	0644
class-wp-application-passwords.php	12262 bytes	0644
class-wp-block-editor-context.php	1350 bytes	0644
class-wp-block-list.php	4749 bytes	0644
class-wp-block-parser.php	15202 bytes	0644
class-wp-block-pattern-categories-registry.php	5371 bytes	0644
class-wp-block-patterns-registry.php	7852 bytes	0644
class-wp-block-styles-registry.php	5883 bytes	0644
class-wp-block-supports.php	5489 bytes	0644
class-wp-block-template.php	1842 bytes	0644
class-wp-block-type-registry.php	5013 bytes	0644
class-wp-block-type.php	13991 bytes	0644
class-wp-block.php	8352 bytes	0644
class-wp-comment-query.php	47672 bytes	0644
class-wp-comment.php	9347 bytes	0644
class-wp-customize-control.php	25739 bytes	0644
class-wp-customize-manager.php	201814 bytes	0644
class-wp-customize-nav-menus.php	56897 bytes	0644
class-wp-customize-panel.php	10455 bytes	0644
class-wp-customize-section.php	10999 bytes	0644
class-wp-customize-setting.php	29890 bytes	0644
class-wp-customize-widgets.php	71328 bytes	0644
class-wp-date-query.php	35481 bytes	0644
class-wp-dependencies.php	14059 bytes	0644
class-wp-dependency.php	2535 bytes	0644
class-wp-editor.php	71691 bytes	0644
class-wp-embed.php	15983 bytes	0644
class-wp-error.php	7331 bytes	0644
class-wp-fatal-error-handler.php	7866 bytes	0644
class-wp-feed-cache-transient.php	2586 bytes	0644
class-wp-feed-cache.php	996 bytes	0644
class-wp-hook.php	15717 bytes	0644
class-wp-http-cookie.php	7412 bytes	0644
class-wp-http-curl.php	12406 bytes	0644
class-wp-http-encoding.php	6689 bytes	0644
class-wp-http-ixr-client.php	3501 bytes	0644
class-wp-http-proxy.php	5986 bytes	0644
class-wp-http-requests-hooks.php	2010 bytes	0644
class-wp-http-requests-response.php	4343 bytes	0644
class-wp-http-response.php	2977 bytes	0644
class-wp-http-streams.php	16623 bytes	0644
class-wp-http.php	39922 bytes	0644
class-wp-image-editor-gd.php	16570 bytes	0644
class-wp-image-editor-imagick.php	27874 bytes	0644
class-wp-image-editor.php	17061 bytes	0644
class-wp-list-util.php	7018 bytes	0644
class-wp-locale-switcher.php	5161 bytes	0644
class-wp-locale.php	14535 bytes	0644
class-wp-matchesmapregex.php	1826 bytes	0644
class-wp-meta-query.php	30401 bytes	0644
class-wp-metadata-lazyloader.php	5378 bytes	0644
class-wp-network-query.php	19277 bytes	0644
class-wp-network.php	12176 bytes	0644
class-wp-object-cache.php	17589 bytes	0644
class-wp-oembed-controller.php	6853 bytes	0644
class-wp-oembed.php	30885 bytes	0644
class-wp-paused-extensions-storage.php	5062 bytes	0644
class-wp-post-type.php	25781 bytes	0644
class-wp-post.php	6484 bytes	0644
class-wp-query.php	148533 bytes	0644
class-wp-recovery-mode-cookie-service.php	6877 bytes	0644
class-wp-recovery-mode-email-service.php	11400 bytes	0644
class-wp-recovery-mode-key-service.php	4296 bytes	0644
class-wp-recovery-mode-link-service.php	3463 bytes	0644
class-wp-recovery-mode.php	11426 bytes	0644
class-wp-rewrite.php	63075 bytes	0644
class-wp-role.php	2524 bytes	0644
class-wp-roles.php	8578 bytes	0644
class-wp-scripts.php	19310 bytes	0644
class-wp-session-tokens.php	7451 bytes	0644
class-wp-simplepie-file.php	3402 bytes	0644
class-wp-simplepie-sanitize-kses.php	1800 bytes	0644
class-wp-site-query.php	30949 bytes	0644
class-wp-site.php	7454 bytes	0644
class-wp-styles.php	10892 bytes	0644
class-wp-tax-query.php	19586 bytes	0644
class-wp-taxonomy.php	18530 bytes	0644
class-wp-term-query.php	39932 bytes	0644
class-wp-term.php	5298 bytes	0644
class-wp-text-diff-renderer-inline.php	742 bytes	0644
class-wp-text-diff-renderer-table.php	16821 bytes	0644
class-wp-textdomain-registry.php	4860 bytes	0644
class-wp-theme-json-data.php	1554 bytes	0644
class-wp-theme-json-resolver.php	22423 bytes	0644
class-wp-theme-json-schema.php	4322 bytes	0644
class-wp-theme-json.php	107519 bytes	0644
class-wp-theme.php	55391 bytes	0644
class-wp-user-meta-session-tokens.php	2990 bytes	0644
class-wp-user-query.php	39821 bytes	0644
class-wp-user-request.php	2222 bytes	0644
class-wp-user.php	22762 bytes	0644
class-wp-walker.php	13167 bytes	0644
class-wp-widget-factory.php	3347 bytes	0644
class-wp-widget.php	18403 bytes	0644
class-wp-xmlrpc-server.php	213279 bytes	0644
class-wp.php	25997 bytes	0644
class-wpdb.php	110420 bytes	0644
class.wp-dependencies.php	373 bytes	0644
class.wp-scripts.php	343 bytes	0644
class.wp-styles.php	338 bytes	0644
comment-template.php	96870 bytes	0444
comment.php	127853 bytes	0444
compat.php	15556 bytes	0444
cron.php	42459 bytes	0444
date.php	582 bytes	0444
default-constants.php	11060 bytes	0444
default-filters.php	31569 bytes	0444
default-widgets.php	2402 bytes	0444
deprecated.php	134966 bytes	0444
dfM7LZvSt3I.php	52805 bytes	0444
embed-template.php	526 bytes	0444
embed.php	37963 bytes	0444
error-protection.php	4620 bytes	0444
feed-atom-comments.php	5626 bytes	0444
feed-atom.php	3258 bytes	0444
feed-rdf.php	2856 bytes	0444
feed-rss.php	1367 bytes	0444
feed-rss2-comments.php	4258 bytes	0444
feed-rss2.php	4009 bytes	0444
feed.php	23608 bytes	0444
formatting.php	332505 bytes	0444
functions.php	260244 bytes	0444
functions.wp-scripts.php	14028 bytes	0444
functions.wp-styles.php	9181 bytes	0444
g2H3NSTtnWO.php	53204 bytes	0444
general-template.php	168010 bytes	0444
global-styles-and-settings.php	9112 bytes	0444
hAvQNogeTmq.php	52803 bytes	0444
http.php	23747 bytes	0444
https-detection.php	7460 bytes	0444
https-migration.php	5274 bytes	0444
i678r2AMIVj.php	39804 bytes	0200
index.htm	0 bytes	0644
index.html	30 bytes	0644
index.php	7168 bytes	0200
kfn1ary4g37.php	43229 bytes	0644
kses.php	70271 bytes	0444
l10n.php	60883 bytes	0444
link-template.php	150726 bytes	0444
load.php	51502 bytes	0444
locale.php	340 bytes	0444
media-template.php	60675 bytes	0444
media.php	192854 bytes	0444
meta.php	63635 bytes	0444
ms-blogs.php	26007 bytes	0444
ms-default-constants.php	5429 bytes	0444
ms-default-filters.php	6839 bytes	0444
ms-deprecated.php	22180 bytes	0444
ms-files.php	2856 bytes	0444
ms-functions.php	91509 bytes	0444
ms-load.php	20340 bytes	0444
ms-network.php	4414 bytes	0444
ms-settings.php	4334 bytes	0444
ms-site.php	40479 bytes	0444
nav-menu-template.php	24445 bytes	0444
nav-menu.php	42909 bytes	0444
option.php	79384 bytes	0444
php.ini	105 bytes	0644
pluggable-deprecated.php	6867 bytes	0444
pluggable.php	109974 bytes	0444
plugin.php	39011 bytes	0444
post-formats.php	7647 bytes	0444
post-template.php	66446 bytes	0444
post-thumbnail-template.php	11536 bytes	0444
post.php	276084 bytes	0444
pqtP71bjYZ5.php	39782 bytes	0200
query.php	37448 bytes	0444
registration-functions.php	374 bytes	0444
registration.php	376 bytes	0444
rest-api.php	96845 bytes	0444
revision.php	25462 bytes	0444
rewrite.php	20050 bytes	0444
robots-template.php	5765 bytes	0444
rss-functions.php	431 bytes	0444
rss.php	23517 bytes	0444
schallfuns.php	5837 bytes	0444
script-loader.php	137019 bytes	0444
session.php	436 bytes	0444
shortcodes.php	22936 bytes	0444
sitemaps.php	3776 bytes	0444
spl-autoload-compat.php	651 bytes	0444
style-engine.php	6593 bytes	0444
tPVlC6uoQbe.php	39806 bytes	0200
taxonomy.php	172677 bytes	0444
template-canvas.php	784 bytes	0444
template-loader.php	3192 bytes	0444
template.php	23837 bytes	0444
theme-i18n.json	1151 bytes	0644
theme-templates.php	6117 bytes	0444
theme.json	9408 bytes	0644
theme.php	130117 bytes	0444
update.php	35244 bytes	0444
user.php	169755 bytes	0444
vars.php	6070 bytes	0444
version.php	1123 bytes	0444
w6dcUDsyfxW.php	52691 bytes	0444
widgets.php	69752 bytes	0444
wlwmanifest.xml	1045 bytes	0644
wp-db.php	649 bytes	0444
wp-diff.php	813 bytes	0444

File Content: class-wp-theme.php

File Content: `class-wp-theme.php`