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System	Linux server.atelieruldeit.ro 3.10.0-1160.el7.x86_64 #1 SMP Mon Oct 19 16:18:59 UTC 2020 x86_64
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Edit File : class-wp-filesystem-base.php \| Size : 22.60 KB
<?php /** * Base WordPress Filesystem * * @package WordPress * @subpackage Filesystem / /* * Base WordPress Filesystem class which Filesystem implementations extend. * * @since 2.5.0 / class WP_Filesystem_Base { /* * Whether to display debug data for the connection. * * @since 2.5.0 * @var bool / public $verbose = false; /* * Cached list of local filepaths to mapped remote filepaths. * * @since 2.7.0 * @var array / public $cache = array(); /* * The Access method of the current connection, Set automatically. * * @since 2.5.0 * @var string / public $method = ''; /* * @var WP_Error / public $errors = null; /* / public $options = array(); /* * Returns the path on the remote filesystem of ABSPATH. * * @since 2.7.0 * * @return string The location of the remote path. / public function abspath() { $folder = $this->find_folder( ABSPATH ); // Perhaps the FTP folder is rooted at the WordPress install. // Check for wp-includes folder in root. Could have some false positives, but rare. if ( ! $folder && $this->is_dir( '/' . WPINC ) ) { $folder = '/'; } return $folder; } /* * Returns the path on the remote filesystem of WP_CONTENT_DIR. * * @since 2.7.0 * * @return string The location of the remote path. / public function wp_content_dir() { return $this->find_folder( WP_CONTENT_DIR ); } /* * Returns the path on the remote filesystem of WP_PLUGIN_DIR. * * @since 2.7.0 * * @return string The location of the remote path. / public function wp_plugins_dir() { return $this->find_folder( WP_PLUGIN_DIR ); } /* * Returns the path on the remote filesystem of the Themes Directory. * * @since 2.7.0 * * @param string\|false $theme Optional. The theme stylesheet or template for the directory. * Default false. * @return string The location of the remote path. / public function wp_themes_dir( $theme = false ) { $theme_root = get_theme_root( $theme ); // Account for relative theme roots. if ( '/themes' === $theme_root \|\| ! is_dir( $theme_root ) ) { $theme_root = WP_CONTENT_DIR . $theme_root; } return $this->find_folder( $theme_root ); } /* * Returns the path on the remote filesystem of WP_LANG_DIR. * * @since 3.2.0 * * @return string The location of the remote path. / public function wp_lang_dir() { return $this->find_folder( WP_LANG_DIR ); } /* * Locates a folder on the remote filesystem. * * @since 2.5.0 * @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp__dir() instead. @see WP_Filesystem::abspath() * @see WP_Filesystem::wp_content_dir() * @see WP_Filesystem::wp_plugins_dir() * @see WP_Filesystem::wp_themes_dir() * @see WP_Filesystem::wp_lang_dir() * * @param string $base The folder to start searching from. * @param bool $echo True to display debug information. * Default false. * @return string The location of the remote path. / public function find_base_dir( $base = '.', $echo = false ) { _deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp__dir()' ); $this->verbose = $echo; return $this->abspath(); } /** * Locates a folder on the remote filesystem. * * @since 2.5.0 * @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp__dir() methods instead. @see WP_Filesystem::abspath() * @see WP_Filesystem::wp_content_dir() * @see WP_Filesystem::wp_plugins_dir() * @see WP_Filesystem::wp_themes_dir() * @see WP_Filesystem::wp_lang_dir() * * @param string $base The folder to start searching from. * @param bool $echo True to display debug information. * @return string The location of the remote path. / public function get_base_dir( $base = '.', $echo = false ) { _deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp__dir()' ); $this->verbose = $echo; return $this->abspath(); } /** * Locates a folder on the remote filesystem. * * Assumes that on Windows systems, Stripping off the Drive * letter is OK Sanitizes \\ to / in Windows filepaths. * * @since 2.7.0 * * @param string $folder the folder to locate. * @return string\|false The location of the remote path, false on failure. / public function find_folder( $folder ) { if ( isset( $this->cache[ $folder ] ) ) { return $this->cache[ $folder ]; } if ( stripos( $this->method, 'ftp' ) !== false ) { $constant_overrides = array( 'FTP_BASE' => ABSPATH, 'FTP_CONTENT_DIR' => WP_CONTENT_DIR, 'FTP_PLUGIN_DIR' => WP_PLUGIN_DIR, 'FTP_LANG_DIR' => WP_LANG_DIR, ); // Direct matches ( folder = CONSTANT/ ). foreach ( $constant_overrides as $constant => $dir ) { if ( ! defined( $constant ) ) { continue; } if ( $folder === $dir ) { return trailingslashit( constant( $constant ) ); } } // Prefix matches ( folder = CONSTANT/subdir ), foreach ( $constant_overrides as $constant => $dir ) { if ( ! defined( $constant ) ) { continue; } if ( 0 === stripos( $folder, $dir ) ) { // $folder starts with $dir. $potential_folder = preg_replace( '#^' . preg_quote( $dir, '#' ) . '/#i', trailingslashit( constant( $constant ) ), $folder ); $potential_folder = trailingslashit( $potential_folder ); if ( $this->is_dir( $potential_folder ) ) { $this->cache[ $folder ] = $potential_folder; return $potential_folder; } } } } elseif ( 'direct' === $this->method ) { $folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation. return trailingslashit( $folder ); } $folder = preg_replace( '\|^([a-z]{1}):\|i', '', $folder ); // Strip out Windows drive letter if it's there. $folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation. if ( isset( $this->cache[ $folder ] ) ) { return $this->cache[ $folder ]; } if ( $this->exists( $folder ) ) { // Folder exists at that absolute path. $folder = trailingslashit( $folder ); $this->cache[ $folder ] = $folder; return $folder; } $return = $this->search_for_folder( $folder ); if ( $return ) { $this->cache[ $folder ] = $return; } return $return; } /* * Locates a folder on the remote filesystem. * * Expects Windows sanitized path. * * @since 2.7.0 * * @param string $folder The folder to locate. * @param string $base The folder to start searching from. * @param bool $loop If the function has recursed. Internal use only. * @return string\|false The location of the remote path, false to cease looping. / public function search_for_folder( $folder, $base = '.', $loop = false ) { if ( empty( $base ) \|\| '.' === $base ) { $base = trailingslashit( $this->cwd() ); } $folder = untrailingslashit( $folder ); if ( $this->verbose ) { / translators: 1: Folder to locate, 2: Folder to start searching from. / printf( "\n" . __( 'Looking for %1$s in %2$s' ) . "<br/>\n", $folder, $base ); } $folder_parts = explode( '/', $folder ); $folder_part_keys = array_keys( $folder_parts ); $last_index = array_pop( $folder_part_keys ); $last_path = $folder_parts[ $last_index ]; $files = $this->dirlist( $base ); foreach ( $folder_parts as $index => $key ) { if ( $index == $last_index ) { continue; // We want this to be caught by the next code block. } / * Working from /home/ to /user/ to /wordpress/ see if that file exists within * the current folder, If it's found, change into it and follow through looking * for it. If it can't find WordPress down that route, it'll continue onto the next * folder level, and see if that matches, and so on. If it reaches the end, and still * can't find it, it'll return false for the entire function. / if ( isset( $files[ $key ] ) ) { // Let's try that folder: $newdir = trailingslashit( path_join( $base, $key ) ); if ( $this->verbose ) { / translators: %s: Directory name. / printf( "\n" . __( 'Changing to %s' ) . "<br/>\n", $newdir ); } // Only search for the remaining path tokens in the directory, not the full path again. $newfolder = implode( '/', array_slice( $folder_parts, $index + 1 ) ); $ret = $this->search_for_folder( $newfolder, $newdir, $loop ); if ( $ret ) { return $ret; } } } // Only check this as a last resort, to prevent locating the incorrect install. // All above procedures will fail quickly if this is the right branch to take. if ( isset( $files[ $last_path ] ) ) { if ( $this->verbose ) { / translators: %s: Directory name. / printf( "\n" . __( 'Found %s' ) . "<br/>\n", $base . $last_path ); } return trailingslashit( $base . $last_path ); } // Prevent this function from looping again. // No need to proceed if we've just searched in `/`. if ( $loop \|\| '/' === $base ) { return false; } // As an extra last resort, Change back to / if the folder wasn't found. // This comes into effect when the CWD is /home/user/ but WP is at /var/www/.... return $this->search_for_folder( $folder, '/', true ); } /* * Returns the nix-style file permissions for a file. * From the PHP documentation page for fileperms(). * * @link https://www.php.net/manual/en/function.fileperms.php * * @since 2.5.0 * * @param string $file String filename. * @return string The nix-style representation of permissions. / public function gethchmod( $file ) { $perms = intval( $this->getchmod( $file ), 8 ); if ( ( $perms & 0xC000 ) == 0xC000 ) { // Socket. $info = 's'; } elseif ( ( $perms & 0xA000 ) == 0xA000 ) { // Symbolic Link. $info = 'l'; } elseif ( ( $perms & 0x8000 ) == 0x8000 ) { // Regular. $info = '-'; } elseif ( ( $perms & 0x6000 ) == 0x6000 ) { // Block special. $info = 'b'; } elseif ( ( $perms & 0x4000 ) == 0x4000 ) { // Directory. $info = 'd'; } elseif ( ( $perms & 0x2000 ) == 0x2000 ) { // Character special. $info = 'c'; } elseif ( ( $perms & 0x1000 ) == 0x1000 ) { // FIFO pipe. $info = 'p'; } else { // Unknown. $info = 'u'; } // Owner. $info .= ( ( $perms & 0x0100 ) ? 'r' : '-' ); $info .= ( ( $perms & 0x0080 ) ? 'w' : '-' ); $info .= ( ( $perms & 0x0040 ) ? ( ( $perms & 0x0800 ) ? 's' : 'x' ) : ( ( $perms & 0x0800 ) ? 'S' : '-' ) ); // Group. $info .= ( ( $perms & 0x0020 ) ? 'r' : '-' ); $info .= ( ( $perms & 0x0010 ) ? 'w' : '-' ); $info .= ( ( $perms & 0x0008 ) ? ( ( $perms & 0x0400 ) ? 's' : 'x' ) : ( ( $perms & 0x0400 ) ? 'S' : '-' ) ); // World. $info .= ( ( $perms & 0x0004 ) ? 'r' : '-' ); $info .= ( ( $perms & 0x0002 ) ? 'w' : '-' ); $info .= ( ( $perms & 0x0001 ) ? ( ( $perms & 0x0200 ) ? 't' : 'x' ) : ( ( $perms & 0x0200 ) ? 'T' : '-' ) ); return $info; } /** * Gets the permissions of the specified file or filepath in their octal format. * * @since 2.5.0 * * @param string $file Path to the file. * @return string Mode of the file (the last 3 digits). / public function getchmod( $file ) { return '777'; } /* * Converts nix-style file permissions to a octal number. * Converts '-rw-r--r--' to 0644 * From "info at rvgate dot nl"'s comment on the PHP documentation for chmod() * * @link https://www.php.net/manual/en/function.chmod.php#49614 * * @since 2.5.0 * * @param string $mode string The nix-style file permission. @return int octal representation / public function getnumchmodfromh( $mode ) { $realmode = ''; $legal = array( '', 'w', 'r', 'x', '-' ); $attarray = preg_split( '//', $mode ); for ( $i = 0, $c = count( $attarray ); $i < $c; $i++ ) { $key = array_search( $attarray[ $i ], $legal, true ); if ( $key ) { $realmode .= $legal[ $key ]; } } $mode = str_pad( $realmode, 10, '-', STR_PAD_LEFT ); $trans = array( '-' => '0', 'r' => '4', 'w' => '2', 'x' => '1', ); $mode = strtr( $mode, $trans ); $newmode = $mode[0]; $newmode .= $mode[1] + $mode[2] + $mode[3]; $newmode .= $mode[4] + $mode[5] + $mode[6]; $newmode .= $mode[7] + $mode[8] + $mode[9]; return $newmode; } /* * Determines if the string provided contains binary characters. * * @since 2.7.0 * * @param string $text String to test against. * @return bool True if string is binary, false otherwise. / public function is_binary( $text ) { return (bool) preg_match( '\|[^\x20-\x7E]\|', $text ); // chr(32)..chr(127) } /* * Changes the owner of a file or directory. * * Default behavior is to do nothing, override this in your subclass, if desired. * * @since 2.5.0 * * @param string $file Path to the file or directory. * @param string\|int $owner A user name or number. * @param bool $recursive Optional. If set to true, changes file owner recursively. * Default false. * @return bool True on success, false on failure. / public function chown( $file, $owner, $recursive = false ) { return false; } /* * Connects filesystem. * * @since 2.5.0 * @abstract * * @return bool True on success, false on failure (always true for WP_Filesystem_Direct). / public function connect() { return true; } /* * Reads entire file into a string. * * @since 2.5.0 * @abstract * * @param string $file Name of the file to read. * @return string\|false Read data on success, false on failure. / public function get_contents( $file ) { return false; } /* * Reads entire file into an array. * * @since 2.5.0 * @abstract * * @param string $file Path to the file. * @return array\|false File contents in an array on success, false on failure. / public function get_contents_array( $file ) { return false; } /* * Writes a string to a file. * * @since 2.5.0 * @abstract * * @param string $file Remote path to the file where to write the data. * @param string $contents The data to write. * @param int\|false $mode Optional. The file permissions as octal number, usually 0644. * Default false. * @return bool True on success, false on failure. / public function put_contents( $file, $contents, $mode = false ) { return false; } /* * Gets the current working directory. * * @since 2.5.0 * @abstract * * @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; } } Back

Edit File : class-wp-filesystem-base.php | Size : 22.60 KB

<?php
/**
 * Base WordPress Filesystem
 *
 * @package WordPress
 * @subpackage Filesystem
 */

/**
 * Base WordPress Filesystem class which Filesystem implementations extend.
 *
 * @since 2.5.0
 */
class WP_Filesystem_Base {

/**
	 * Whether to display debug data for the connection.
	 *
	 * @since 2.5.0
	 * @var bool
	 */
	public $verbose = false;

/**
	 * Cached list of local filepaths to mapped remote filepaths.
	 *
	 * @since 2.7.0
	 * @var array
	 */
	public $cache = array();

/**
	 * The Access method of the current connection, Set automatically.
	 *
	 * @since 2.5.0
	 * @var string
	 */
	public $method = '';

/**
	 * @var WP_Error
	 */
	public $errors = null;

/**
	 */
	public $options = array();

/**
	 * Returns the path on the remote filesystem of ABSPATH.
	 *
	 * @since 2.7.0
	 *
	 * @return string The location of the remote path.
	 */
	public function abspath() {
		$folder = $this->find_folder( ABSPATH );

// Perhaps the FTP folder is rooted at the WordPress install.
		// Check for wp-includes folder in root. Could have some false positives, but rare.
		if ( ! $folder && $this->is_dir( '/' . WPINC ) ) {
			$folder = '/';
		}

return $folder;
	}

/**
	 * Returns the path on the remote filesystem of WP_CONTENT_DIR.
	 *
	 * @since 2.7.0
	 *
	 * @return string The location of the remote path.
	 */
	public function wp_content_dir() {
		return $this->find_folder( WP_CONTENT_DIR );
	}

/**
	 * Returns the path on the remote filesystem of WP_PLUGIN_DIR.
	 *
	 * @since 2.7.0
	 *
	 * @return string The location of the remote path.
	 */
	public function wp_plugins_dir() {
		return $this->find_folder( WP_PLUGIN_DIR );
	}

/**
	 * Returns the path on the remote filesystem of the Themes Directory.
	 *
	 * @since 2.7.0
	 *
	 * @param string|false $theme Optional. The theme stylesheet or template for the directory.
	 *                            Default false.
	 * @return string The location of the remote path.
	 */
	public function wp_themes_dir( $theme = false ) {
		$theme_root = get_theme_root( $theme );

// Account for relative theme roots.
		if ( '/themes' === $theme_root || ! is_dir( $theme_root ) ) {
			$theme_root = WP_CONTENT_DIR . $theme_root;
		}

return $this->find_folder( $theme_root );
	}

/**
	 * Returns the path on the remote filesystem of WP_LANG_DIR.
	 *
	 * @since 3.2.0
	 *
	 * @return string The location of the remote path.
	 */
	public function wp_lang_dir() {
		return $this->find_folder( WP_LANG_DIR );
	}

/**
	 * Locates a folder on the remote filesystem.
	 *
	 * @since 2.5.0
	 * @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir() instead.
	 * @see WP_Filesystem::abspath()
	 * @see WP_Filesystem::wp_content_dir()
	 * @see WP_Filesystem::wp_plugins_dir()
	 * @see WP_Filesystem::wp_themes_dir()
	 * @see WP_Filesystem::wp_lang_dir()
	 *
	 * @param string $base The folder to start searching from.
	 * @param bool   $echo True to display debug information.
	 *                     Default false.
	 * @return string The location of the remote path.
	 */
	public function find_base_dir( $base = '.', $echo = false ) {
		_deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir()' );
		$this->verbose = $echo;
		return $this->abspath();
	}

/**
	 * Locates a folder on the remote filesystem.
	 *
	 * @since 2.5.0
	 * @deprecated 2.7.0 use WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir() methods instead.
	 * @see WP_Filesystem::abspath()
	 * @see WP_Filesystem::wp_content_dir()
	 * @see WP_Filesystem::wp_plugins_dir()
	 * @see WP_Filesystem::wp_themes_dir()
	 * @see WP_Filesystem::wp_lang_dir()
	 *
	 * @param string $base The folder to start searching from.
	 * @param bool   $echo True to display debug information.
	 * @return string The location of the remote path.
	 */
	public function get_base_dir( $base = '.', $echo = false ) {
		_deprecated_function( __FUNCTION__, '2.7.0', 'WP_Filesystem::abspath() or WP_Filesystem::wp_*_dir()' );
		$this->verbose = $echo;
		return $this->abspath();
	}

/**
	 * Locates a folder on the remote filesystem.
	 *
	 * Assumes that on Windows systems, Stripping off the Drive
	 * letter is OK Sanitizes \\ to / in Windows filepaths.
	 *
	 * @since 2.7.0
	 *
	 * @param string $folder the folder to locate.
	 * @return string|false The location of the remote path, false on failure.
	 */
	public function find_folder( $folder ) {
		if ( isset( $this->cache[ $folder ] ) ) {
			return $this->cache[ $folder ];
		}

if ( stripos( $this->method, 'ftp' ) !== false ) {
			$constant_overrides = array(
				'FTP_BASE'        => ABSPATH,
				'FTP_CONTENT_DIR' => WP_CONTENT_DIR,
				'FTP_PLUGIN_DIR'  => WP_PLUGIN_DIR,
				'FTP_LANG_DIR'    => WP_LANG_DIR,
			);

// Direct matches ( folder = CONSTANT/ ).
			foreach ( $constant_overrides as $constant => $dir ) {
				if ( ! defined( $constant ) ) {
					continue;
				}

if ( $folder === $dir ) {
					return trailingslashit( constant( $constant ) );
				}
			}

// Prefix matches ( folder = CONSTANT/subdir ),
			foreach ( $constant_overrides as $constant => $dir ) {
				if ( ! defined( $constant ) ) {
					continue;
				}

if ( 0 === stripos( $folder, $dir ) ) { // $folder starts with $dir.
					$potential_folder = preg_replace( '#^' . preg_quote( $dir, '#' ) . '/#i', trailingslashit( constant( $constant ) ), $folder );
					$potential_folder = trailingslashit( $potential_folder );

if ( $this->is_dir( $potential_folder ) ) {
						$this->cache[ $folder ] = $potential_folder;

return $potential_folder;
					}
				}
			}
		} elseif ( 'direct' === $this->method ) {
			$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation.

return trailingslashit( $folder );
		}

$folder = preg_replace( '|^([a-z]{1}):|i', '', $folder ); // Strip out Windows drive letter if it's there.
		$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation.

if ( isset( $this->cache[ $folder ] ) ) {
			return $this->cache[ $folder ];
		}

if ( $this->exists( $folder ) ) { // Folder exists at that absolute path.
			$folder                 = trailingslashit( $folder );
			$this->cache[ $folder ] = $folder;

return $folder;
		}

$return = $this->search_for_folder( $folder );

if ( $return ) {
			$this->cache[ $folder ] = $return;
		}

return $return;
	}

/**
	 * Locates a folder on the remote filesystem.
	 *
	 * Expects Windows sanitized path.
	 *
	 * @since 2.7.0
	 *
	 * @param string $folder The folder to locate.
	 * @param string $base   The folder to start searching from.
	 * @param bool   $loop   If the function has recursed. Internal use only.
	 * @return string|false The location of the remote path, false to cease looping.
	 */
	public function search_for_folder( $folder, $base = '.', $loop = false ) {
		if ( empty( $base ) || '.' === $base ) {
			$base = trailingslashit( $this->cwd() );
		}

$folder = untrailingslashit( $folder );

if ( $this->verbose ) {
			/* translators: 1: Folder to locate, 2: Folder to start searching from. */
			printf( "\n" . __( 'Looking for %1$s in %2$s' ) . "<br/>\n", $folder, $base );
		}

$folder_parts     = explode( '/', $folder );
		$folder_part_keys = array_keys( $folder_parts );
		$last_index       = array_pop( $folder_part_keys );
		$last_path        = $folder_parts[ $last_index ];

$files = $this->dirlist( $base );

foreach ( $folder_parts as $index => $key ) {
			if ( $index == $last_index ) {
				continue; // We want this to be caught by the next code block.
			}

/*
			 * Working from /home/ to /user/ to /wordpress/ see if that file exists within
			 * the current folder, If it's found, change into it and follow through looking
			 * for it. If it can't find WordPress down that route, it'll continue onto the next
			 * folder level, and see if that matches, and so on. If it reaches the end, and still
			 * can't find it, it'll return false for the entire function.
			 */
			if ( isset( $files[ $key ] ) ) {

// Let's try that folder:
				$newdir = trailingslashit( path_join( $base, $key ) );

if ( $this->verbose ) {
					/* translators: %s: Directory name. */
					printf( "\n" . __( 'Changing to %s' ) . "<br/>\n", $newdir );
				}

// Only search for the remaining path tokens in the directory, not the full path again.
				$newfolder = implode( '/', array_slice( $folder_parts, $index + 1 ) );
				$ret       = $this->search_for_folder( $newfolder, $newdir, $loop );

if ( $ret ) {
					return $ret;
				}
			}
		}

// Only check this as a last resort, to prevent locating the incorrect install.
		// All above procedures will fail quickly if this is the right branch to take.
		if ( isset( $files[ $last_path ] ) ) {
			if ( $this->verbose ) {
				/* translators: %s: Directory name. */
				printf( "\n" . __( 'Found %s' ) . "<br/>\n", $base . $last_path );
			}

return trailingslashit( $base . $last_path );
		}

// Prevent this function from looping again.
		// No need to proceed if we've just searched in `/`.
		if ( $loop || '/' === $base ) {
			return false;
		}

// As an extra last resort, Change back to / if the folder wasn't found.
		// This comes into effect when the CWD is /home/user/ but WP is at /var/www/....
		return $this->search_for_folder( $folder, '/', true );

}

/**
	 * Returns the *nix-style file permissions for a file.
	 *
	 * From the PHP documentation page for fileperms().
	 *
	 * @link https://www.php.net/manual/en/function.fileperms.php
	 *
	 * @since 2.5.0
	 *
	 * @param string $file String filename.
	 * @return string The *nix-style representation of permissions.
	 */
	public function gethchmod( $file ) {
		$perms = intval( $this->getchmod( $file ), 8 );

if ( ( $perms & 0xC000 ) == 0xC000 ) { // Socket.
			$info = 's';
		} elseif ( ( $perms & 0xA000 ) == 0xA000 ) { // Symbolic Link.
			$info = 'l';
		} elseif ( ( $perms & 0x8000 ) == 0x8000 ) { // Regular.
			$info = '-';
		} elseif ( ( $perms & 0x6000 ) == 0x6000 ) { // Block special.
			$info = 'b';
		} elseif ( ( $perms & 0x4000 ) == 0x4000 ) { // Directory.
			$info = 'd';
		} elseif ( ( $perms & 0x2000 ) == 0x2000 ) { // Character special.
			$info = 'c';
		} elseif ( ( $perms & 0x1000 ) == 0x1000 ) { // FIFO pipe.
			$info = 'p';
		} else { // Unknown.
			$info = 'u';
		}

// Owner.
		$info .= ( ( $perms & 0x0100 ) ? 'r' : '-' );
		$info .= ( ( $perms & 0x0080 ) ? 'w' : '-' );
		$info .= ( ( $perms & 0x0040 ) ?
					( ( $perms & 0x0800 ) ? 's' : 'x' ) :
					( ( $perms & 0x0800 ) ? 'S' : '-' ) );

// Group.
		$info .= ( ( $perms & 0x0020 ) ? 'r' : '-' );
		$info .= ( ( $perms & 0x0010 ) ? 'w' : '-' );
		$info .= ( ( $perms & 0x0008 ) ?
					( ( $perms & 0x0400 ) ? 's' : 'x' ) :
					( ( $perms & 0x0400 ) ? 'S' : '-' ) );

// World.
		$info .= ( ( $perms & 0x0004 ) ? 'r' : '-' );
		$info .= ( ( $perms & 0x0002 ) ? 'w' : '-' );
		$info .= ( ( $perms & 0x0001 ) ?
					( ( $perms & 0x0200 ) ? 't' : 'x' ) :
					( ( $perms & 0x0200 ) ? 'T' : '-' ) );

return $info;
	}

/**
	 * Gets the permissions of the specified file or filepath in their octal format.
	 *
	 * @since 2.5.0
	 *
	 * @param string $file Path to the file.
	 * @return string Mode of the file (the last 3 digits).
	 */
	public function getchmod( $file ) {
		return '777';
	}

/**
	 * Converts *nix-style file permissions to a octal number.
	 *
	 * Converts '-rw-r--r--' to 0644
	 * From "info at rvgate dot nl"'s comment on the PHP documentation for chmod()
	 *
	 * @link https://www.php.net/manual/en/function.chmod.php#49614
	 *
	 * @since 2.5.0
	 *
	 * @param string $mode string The *nix-style file permission.
	 * @return int octal representation
	 */
	public function getnumchmodfromh( $mode ) {
		$realmode = '';
		$legal    = array( '', 'w', 'r', 'x', '-' );
		$attarray = preg_split( '//', $mode );

for ( $i = 0, $c = count( $attarray ); $i < $c; $i++ ) {
			$key = array_search( $attarray[ $i ], $legal, true );

if ( $key ) {
				$realmode .= $legal[ $key ];
			}
		}

$mode  = str_pad( $realmode, 10, '-', STR_PAD_LEFT );
		$trans = array(
			'-' => '0',
			'r' => '4',
			'w' => '2',
			'x' => '1',
		);
		$mode  = strtr( $mode, $trans );

$newmode  = $mode[0];
		$newmode .= $mode[1] + $mode[2] + $mode[3];
		$newmode .= $mode[4] + $mode[5] + $mode[6];
		$newmode .= $mode[7] + $mode[8] + $mode[9];

return $newmode;
	}

/**
	 * Determines if the string provided contains binary characters.
	 *
	 * @since 2.7.0
	 *
	 * @param string $text String to test against.
	 * @return bool True if string is binary, false otherwise.
	 */
	public function is_binary( $text ) {
		return (bool) preg_match( '|[^\x20-\x7E]|', $text ); // chr(32)..chr(127)
	}

/**
	 * Changes the owner of a file or directory.
	 *
	 * Default behavior is to do nothing, override this in your subclass, if desired.
	 *
	 * @since 2.5.0
	 *
	 * @param string     $file      Path to the file or directory.
	 * @param string|int $owner     A user name or number.
	 * @param bool       $recursive Optional. If set to true, changes file owner recursively.
	 *                              Default false.
	 * @return bool True on success, false on failure.
	 */
	public function chown( $file, $owner, $recursive = false ) {
		return false;
	}

/**
	 * Connects filesystem.
	 *
	 * @since 2.5.0
	 * @abstract
	 *
	 * @return bool True on success, false on failure (always true for WP_Filesystem_Direct).
	 */
	public function connect() {
		return true;
	}

/**
	 * Reads entire file into a string.
	 *
	 * @since 2.5.0
	 * @abstract
	 *
	 * @param string $file Name of the file to read.
	 * @return string|false Read data on success, false on failure.
	 */
	public function get_contents( $file ) {
		return false;
	}

/**
	 * Reads entire file into an array.
	 *
	 * @since 2.5.0
	 * @abstract
	 *
	 * @param string $file Path to the file.
	 * @return array|false File contents in an array on success, false on failure.
	 */
	public function get_contents_array( $file ) {
		return false;
	}

/**
	 * Writes a string to a file.
	 *
	 * @since 2.5.0
	 * @abstract
	 *
	 * @param string    $file     Remote path to the file where to write the data.
	 * @param string    $contents The data to write.
	 * @param int|false $mode     Optional. The file permissions as octal number, usually 0644.
	 *                            Default false.
	 * @return bool True on success, false on failure.
	 */
	public function put_contents( $file, $contents, $mode = false ) {
		return false;
	}

/**
	 * Gets the current working directory.
	 *
	 * @since 2.5.0
	 * @abstract
	 *
	 * @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;
	}

}

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