831 lines
23 KiB
PHP
831 lines
23 KiB
PHP
<?php
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/**
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* Base WordPress Filesystem
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*
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* @package WordPress
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* @subpackage Filesystem
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*/
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/**
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* Base WordPress Filesystem class which Filesystem implementations extend.
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*
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* @since 2.5.0
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*/
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class WP_Filesystem_Base {
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/**
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* Whether to display debug data for the connection.
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*
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* @since 2.5.0
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* @var bool
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*/
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public $verbose = false;
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/**
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* Cached list of local filepaths to mapped remote filepaths.
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*
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* @since 2.7.0
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* @var array
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*/
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public $cache = array();
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/**
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* The Access method of the current connection, Set automatically.
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*
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* @since 2.5.0
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* @var string
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*/
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public $method = '';
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/**
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* @var WP_Error
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*/
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public $errors = null;
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/**
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*/
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public $options = array();
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/**
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* Returns the path on the remote filesystem of ABSPATH.
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*
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* @since 2.7.0
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*
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* @return string The location of the remote path.
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*/
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public function abspath() {
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$folder = $this->find_folder( ABSPATH );
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// Perhaps the FTP folder is rooted at the WordPress install, Check for wp-includes folder in root, Could have some false positives, but rare.
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if ( ! $folder && $this->is_dir( '/' . WPINC ) ) {
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$folder = '/';
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}
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return $folder;
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}
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/**
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* Returns the path on the remote filesystem of WP_CONTENT_DIR.
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*
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* @since 2.7.0
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*
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* @return string The location of the remote path.
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*/
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public function wp_content_dir() {
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return $this->find_folder( WP_CONTENT_DIR );
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}
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/**
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* Returns the path on the remote filesystem of WP_PLUGIN_DIR.
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*
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* @since 2.7.0
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*
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* @return string The location of the remote path.
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*/
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public function wp_plugins_dir() {
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return $this->find_folder( WP_PLUGIN_DIR );
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}
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/**
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* Returns the path on the remote filesystem of the Themes Directory.
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*
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* @since 2.7.0
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*
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* @param string|false $theme Optional. The theme stylesheet or template for the directory.
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* Default false.
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* @return string The location of the remote path.
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*/
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public function wp_themes_dir( $theme = false ) {
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$theme_root = get_theme_root( $theme );
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// Account for relative theme roots
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if ( '/themes' == $theme_root || ! is_dir( $theme_root ) ) {
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$theme_root = WP_CONTENT_DIR . $theme_root;
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}
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return $this->find_folder( $theme_root );
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}
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/**
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* Returns the path on the remote filesystem of WP_LANG_DIR.
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*
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* @since 3.2.0
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*
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* @return string The location of the remote path.
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*/
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public function wp_lang_dir() {
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return $this->find_folder( WP_LANG_DIR );
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}
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/**
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* Locates a folder on the remote filesystem.
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*
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* @since 2.5.0
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* @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir() instead.
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* @see WP_Filesystem::abspath()
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* @see WP_Filesystem::wp_content_dir()
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* @see WP_Filesystem::wp_plugins_dir()
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* @see WP_Filesystem::wp_themes_dir()
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* @see WP_Filesystem::wp_lang_dir()
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*
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* @param string $base The folder to start searching from.
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* @param bool $echo True to display debug information.
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* Default false.
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* @return string The location of the remote path.
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*/
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public function find_base_dir( $base = '.', $echo = false ) {
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_deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir()' );
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$this->verbose = $echo;
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return $this->abspath();
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}
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/**
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* Locates a folder on the remote filesystem.
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*
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* @since 2.5.0
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* @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir() methods instead.
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* @see WP_Filesystem::abspath()
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* @see WP_Filesystem::wp_content_dir()
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* @see WP_Filesystem::wp_plugins_dir()
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* @see WP_Filesystem::wp_themes_dir()
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* @see WP_Filesystem::wp_lang_dir()
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*
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* @param string $base The folder to start searching from.
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* @param bool $echo True to display debug information.
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* @return string The location of the remote path.
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*/
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public function get_base_dir( $base = '.', $echo = false ) {
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_deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir()' );
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$this->verbose = $echo;
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return $this->abspath();
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}
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/**
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* Locates a folder on the remote filesystem.
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*
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* Assumes that on Windows systems, Stripping off the Drive
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* letter is OK Sanitizes \\ to / in Windows filepaths.
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*
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* @since 2.7.0
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*
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* @param string $folder the folder to locate.
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* @return string|false The location of the remote path, false on failure.
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*/
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public function find_folder( $folder ) {
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if ( isset( $this->cache[ $folder ] ) ) {
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return $this->cache[ $folder ];
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}
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if ( stripos( $this->method, 'ftp' ) !== false ) {
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$constant_overrides = array(
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'FTP_BASE' => ABSPATH,
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'FTP_CONTENT_DIR' => WP_CONTENT_DIR,
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'FTP_PLUGIN_DIR' => WP_PLUGIN_DIR,
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'FTP_LANG_DIR' => WP_LANG_DIR,
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);
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// Direct matches ( folder = CONSTANT/ )
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foreach ( $constant_overrides as $constant => $dir ) {
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if ( ! defined( $constant ) ) {
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continue;
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}
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if ( $folder === $dir ) {
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return trailingslashit( constant( $constant ) );
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}
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}
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// Prefix Matches ( folder = CONSTANT/subdir )
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foreach ( $constant_overrides as $constant => $dir ) {
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if ( ! defined( $constant ) ) {
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continue;
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}
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if ( 0 === stripos( $folder, $dir ) ) { // $folder starts with $dir
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$potential_folder = preg_replace( '#^' . preg_quote( $dir, '#' ) . '/#i', trailingslashit( constant( $constant ) ), $folder );
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$potential_folder = trailingslashit( $potential_folder );
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if ( $this->is_dir( $potential_folder ) ) {
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$this->cache[ $folder ] = $potential_folder;
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return $potential_folder;
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}
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}
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}
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} elseif ( 'direct' == $this->method ) {
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$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation
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return trailingslashit( $folder );
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}
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$folder = preg_replace( '|^([a-z]{1}):|i', '', $folder ); // Strip out windows drive letter if it's there.
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$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation
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if ( isset( $this->cache[ $folder ] ) ) {
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return $this->cache[ $folder ];
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}
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if ( $this->exists( $folder ) ) { // Folder exists at that absolute path.
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$folder = trailingslashit( $folder );
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$this->cache[ $folder ] = $folder;
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return $folder;
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}
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$return = $this->search_for_folder( $folder );
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if ( $return ) {
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$this->cache[ $folder ] = $return;
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}
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return $return;
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}
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/**
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* Locates a folder on the remote filesystem.
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*
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* Expects Windows sanitized path.
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*
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* @since 2.7.0
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*
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* @param string $folder The folder to locate.
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* @param string $base The folder to start searching from.
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* @param bool $loop If the function has recursed, Internal use only.
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* @return string|false The location of the remote path, false to cease looping.
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*/
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public function search_for_folder( $folder, $base = '.', $loop = false ) {
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if ( empty( $base ) || '.' == $base ) {
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$base = trailingslashit( $this->cwd() );
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}
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$folder = untrailingslashit( $folder );
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if ( $this->verbose ) {
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/* translators: 1: Folder to locate, 2: Folder to start searching from. */
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printf( "\n" . __( 'Looking for %1$s in %2$s' ) . "<br/>\n", $folder, $base );
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}
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$folder_parts = explode( '/', $folder );
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$folder_part_keys = array_keys( $folder_parts );
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$last_index = array_pop( $folder_part_keys );
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$last_path = $folder_parts[ $last_index ];
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$files = $this->dirlist( $base );
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foreach ( $folder_parts as $index => $key ) {
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if ( $index == $last_index ) {
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continue; // We want this to be caught by the next code block.
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}
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/*
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* Working from /home/ to /user/ to /wordpress/ see if that file exists within
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* the current folder, If it's found, change into it and follow through looking
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* for it. If it can't find WordPress down that route, it'll continue onto the next
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* folder level, and see if that matches, and so on. If it reaches the end, and still
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* can't find it, it'll return false for the entire function.
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*/
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if ( isset( $files[ $key ] ) ) {
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// Let's try that folder:
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$newdir = trailingslashit( path_join( $base, $key ) );
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if ( $this->verbose ) {
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/* translators: %s: Directory name. */
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printf( "\n" . __( 'Changing to %s' ) . "<br/>\n", $newdir );
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}
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// Only search for the remaining path tokens in the directory, not the full path again.
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$newfolder = implode( '/', array_slice( $folder_parts, $index + 1 ) );
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$ret = $this->search_for_folder( $newfolder, $newdir, $loop );
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if ( $ret ) {
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return $ret;
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}
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}
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}
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// Only check this as a last resort, to prevent locating the incorrect install.
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// All above procedures will fail quickly if this is the right branch to take.
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if ( isset( $files[ $last_path ] ) ) {
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if ( $this->verbose ) {
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/* translators: %s: Directory name. */
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printf( "\n" . __( 'Found %s' ) . "<br/>\n", $base . $last_path );
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}
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return trailingslashit( $base . $last_path );
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}
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// Prevent this function from looping again.
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// No need to proceed if we've just searched in /
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if ( $loop || '/' == $base ) {
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return false;
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}
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// As an extra last resort, Change back to / if the folder wasn't found.
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// This comes into effect when the CWD is /home/user/ but WP is at /var/www/....
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return $this->search_for_folder( $folder, '/', true );
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}
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/**
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* Returns the *nix-style file permissions for a file.
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*
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* From the PHP documentation page for fileperms().
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*
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* @link https://www.php.net/manual/en/function.fileperms.php
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*
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* @since 2.5.0
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*
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* @param string $file String filename.
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* @return string The *nix-style representation of permissions.
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*/
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public function gethchmod( $file ) {
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$perms = intval( $this->getchmod( $file ), 8 );
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if ( ( $perms & 0xC000 ) == 0xC000 ) { // Socket
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$info = 's';
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} elseif ( ( $perms & 0xA000 ) == 0xA000 ) { // Symbolic Link
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$info = 'l';
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} elseif ( ( $perms & 0x8000 ) == 0x8000 ) { // Regular
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$info = '-';
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} elseif ( ( $perms & 0x6000 ) == 0x6000 ) { // Block special
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$info = 'b';
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} elseif ( ( $perms & 0x4000 ) == 0x4000 ) { // Directory
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$info = 'd';
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} elseif ( ( $perms & 0x2000 ) == 0x2000 ) { // Character special
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$info = 'c';
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} elseif ( ( $perms & 0x1000 ) == 0x1000 ) { // FIFO pipe
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$info = 'p';
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} else { // Unknown
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$info = 'u';
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}
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// Owner
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$info .= ( ( $perms & 0x0100 ) ? 'r' : '-' );
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$info .= ( ( $perms & 0x0080 ) ? 'w' : '-' );
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$info .= ( ( $perms & 0x0040 ) ?
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( ( $perms & 0x0800 ) ? 's' : 'x' ) :
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( ( $perms & 0x0800 ) ? 'S' : '-' ) );
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// Group
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$info .= ( ( $perms & 0x0020 ) ? 'r' : '-' );
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$info .= ( ( $perms & 0x0010 ) ? 'w' : '-' );
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$info .= ( ( $perms & 0x0008 ) ?
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( ( $perms & 0x0400 ) ? 's' : 'x' ) :
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( ( $perms & 0x0400 ) ? 'S' : '-' ) );
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// World
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$info .= ( ( $perms & 0x0004 ) ? 'r' : '-' );
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$info .= ( ( $perms & 0x0002 ) ? 'w' : '-' );
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$info .= ( ( $perms & 0x0001 ) ?
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( ( $perms & 0x0200 ) ? 't' : 'x' ) :
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( ( $perms & 0x0200 ) ? 'T' : '-' ) );
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return $info;
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}
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/**
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* Gets the permissions of the specified file or filepath in their octal format.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file.
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* @return string Mode of the file (the last 3 digits).
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*/
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public function getchmod( $file ) {
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return '777';
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}
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/**
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* Converts *nix-style file permissions to a octal number.
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*
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* Converts '-rw-r--r--' to 0644
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* From "info at rvgate dot nl"'s comment on the PHP documentation for chmod()
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*
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* @link https://www.php.net/manual/en/function.chmod.php#49614
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*
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* @since 2.5.0
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*
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* @param string $mode string The *nix-style file permission.
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* @return int octal representation
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*/
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public function getnumchmodfromh( $mode ) {
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$realmode = '';
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$legal = array( '', 'w', 'r', 'x', '-' );
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$attarray = preg_split( '//', $mode );
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for ( $i = 0, $c = count( $attarray ); $i < $c; $i++ ) {
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$key = array_search( $attarray[ $i ], $legal );
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if ( $key ) {
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$realmode .= $legal[ $key ];
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}
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}
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$mode = str_pad( $realmode, 10, '-', STR_PAD_LEFT );
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$trans = array(
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'-' => '0',
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'r' => '4',
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'w' => '2',
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'x' => '1',
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);
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$mode = strtr( $mode, $trans );
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$newmode = $mode[0];
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$newmode .= $mode[1] + $mode[2] + $mode[3];
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$newmode .= $mode[4] + $mode[5] + $mode[6];
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$newmode .= $mode[7] + $mode[8] + $mode[9];
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return $newmode;
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}
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/**
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* Determines if the string provided contains binary characters.
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*
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* @since 2.7.0
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*
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* @param string $text String to test against.
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* @return bool True if string is binary, false otherwise.
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*/
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public function is_binary( $text ) {
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return (bool) preg_match( '|[^\x20-\x7E]|', $text ); // chr(32)..chr(127)
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}
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/**
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* Changes the owner of a file or directory.
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*
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* Default behavior is to do nothing, override this in your subclass, if desired.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file or directory.
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* @param string|int $owner A user name or number.
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* @param bool $recursive Optional. If set to true, changes file owner recursively.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function chown( $file, $owner, $recursive = false ) {
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return false;
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}
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/**
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* Connects filesystem.
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*
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* @since 2.5.0
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* @abstract
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*
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* @return bool True on success, false on failure (always true for WP_Filesystem_Direct).
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*/
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public function connect() {
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return true;
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}
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/**
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* Reads entire file into a string.
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*
|
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* @since 2.5.0
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* @abstract
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*
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* @param string $file Name of the file to read.
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* @return string|false Read data on success, false on failure.
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*/
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public function get_contents( $file ) {
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return false;
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}
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/**
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* Reads entire file into an array.
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*
|
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* @since 2.5.0
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* @abstract
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*
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* @param string $file Path to the file.
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* @return array|false File contents in an array on success, false on failure.
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*/
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public function get_contents_array( $file ) {
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return false;
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}
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|
|
/**
|
|
* Writes a string to a file.
|
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*
|
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* @since 2.5.0
|
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* @abstract
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*
|
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* @param string $file Remote path to the file where to write the data.
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* @param string $contents The data to write.
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* @param int|false $mode Optional. The file permissions as octal number, usually 0644.
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* Default false.
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* @return bool True on success, false on failure.
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*/
|
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public function put_contents( $file, $contents, $mode = false ) {
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return false;
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}
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|
|
/**
|
|
* Gets the current working directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
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|
*
|
|
* @return string|false The current working directory on success, false on failure.
|
|
*/
|
|
public function cwd() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Changes current directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $dir The new current directory.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function chdir( $dir ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Changes the file group.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to the file.
|
|
* @param string|int $group A group name or number.
|
|
* @param bool $recursive Optional. If set to true, changes file group recursively.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function chgrp( $file, $group, $recursive = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Changes filesystem permissions.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to the file.
|
|
* @param int|false $mode Optional. The permissions as octal number, usually 0644 for files,
|
|
* 0755 for directories. Default false.
|
|
* @param bool $recursive Optional. If set to true, changes file permissions recursively.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function chmod( $file, $mode = false, $recursive = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the file owner.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to the file.
|
|
* @return string|false Username of the owner on success, false on failure.
|
|
*/
|
|
public function owner( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the file's group.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to the file.
|
|
* @return string|false The group on success, false on failure.
|
|
*/
|
|
public function group( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Copies a file.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $source Path to the source file.
|
|
* @param string $destination Path to the destination file.
|
|
* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
|
|
* Default false.
|
|
* @param int|false $mode Optional. The permissions as octal number, usually 0644 for files,
|
|
* 0755 for dirs. Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function copy( $source, $destination, $overwrite = false, $mode = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Moves a file.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $source Path to the source file.
|
|
* @param string $destination Path to the destination file.
|
|
* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function move( $source, $destination, $overwrite = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Deletes a file or directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to the file or directory.
|
|
* @param bool $recursive Optional. If set to true, deletes files and folders recursively.
|
|
* Default false.
|
|
* @param string|false $type Type of resource. 'f' for file, 'd' for directory.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function delete( $file, $recursive = false, $type = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if a file or directory exists.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file or directory.
|
|
* @return bool Whether $file exists or not.
|
|
*/
|
|
public function exists( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if resource is a file.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file File path.
|
|
* @return bool Whether $file is a file.
|
|
*/
|
|
public function is_file( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if resource is a directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $path Directory path.
|
|
* @return bool Whether $path is a directory.
|
|
*/
|
|
public function is_dir( $path ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if a file is readable.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return bool Whether $file is readable.
|
|
*/
|
|
public function is_readable( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if a file or directory is writable.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file or directory.
|
|
* @return bool Whether $file is writable.
|
|
*/
|
|
public function is_writable( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the file's last access time.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Unix timestamp representing last access time, false on failure.
|
|
*/
|
|
public function atime( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the file modification time.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Unix timestamp representing modification time, false on failure.
|
|
*/
|
|
public function mtime( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the file size (in bytes).
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file.
|
|
* @return int|false Size of the file in bytes on success, false on failure.
|
|
*/
|
|
public function size( $file ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the access and modification times of a file.
|
|
*
|
|
* Note: If $file doesn't exist, it will be created.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $file Path to file.
|
|
* @param int $time Optional. Modified time to set for file.
|
|
* Default 0.
|
|
* @param int $atime Optional. Access time to set for file.
|
|
* Default 0.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function touch( $file, $time = 0, $atime = 0 ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Creates a directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $path Path for new directory.
|
|
* @param int|false $chmod Optional. The permissions as octal number (or false to skip chmod).
|
|
* Default false.
|
|
* @param string|int $chown Optional. A user name or number (or false to skip chown).
|
|
* Default false.
|
|
* @param string|int $chgrp Optional. A group name or number (or false to skip chgrp).
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Deletes a directory.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $path Path to directory.
|
|
* @param bool $recursive Optional. Whether to recursively remove files/directories.
|
|
* Default false.
|
|
* @return bool True on success, false on failure.
|
|
*/
|
|
public function rmdir( $path, $recursive = false ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets details for files in a directory or a specific file.
|
|
*
|
|
* @since 2.5.0
|
|
* @abstract
|
|
*
|
|
* @param string $path Path to directory or file.
|
|
* @param bool $include_hidden Optional. Whether to include details of hidden ("." prefixed) files.
|
|
* Default true.
|
|
* @param bool $recursive Optional. Whether to recursively include file details in nested directories.
|
|
* Default false.
|
|
* @return array|false {
|
|
* Array of files. False if unable to list directory contents.
|
|
*
|
|
* @type string $name Name of the file or directory.
|
|
* @type string $perms *nix representation of permissions.
|
|
* @type int $permsn Octal representation of permissions.
|
|
* @type string $owner Owner name or ID.
|
|
* @type int $size Size of file in bytes.
|
|
* @type int $lastmodunix Last modified unix timestamp.
|
|
* @type mixed $lastmod Last modified month (3 letter) and day (without leading 0).
|
|
* @type int $time Last modified time.
|
|
* @type string $type Type of resource. 'f' for file, 'd' for directory.
|
|
* @type mixed $files If a directory and $recursive is true, contains another array of files.
|
|
* }
|
|
*/
|
|
public function dirlist( $path, $include_hidden = true, $recursive = false ) {
|
|
return false;
|
|
}
|
|
|
|
} // WP_Filesystem_Base
|