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<?php
/**
* Base WordPress Filesystem
*
* @package WordPress
* @subpackage Filesystem
*/
/**
* Base WordPress Filesystem class for 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();
/**
* Return 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;
}
/**
* Return 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);
}
/**
* Return 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);
}
/**
* Return the path on the remote filesystem of the Themes Directory.
*
* @since 2.7.0
*
* @param string $theme The Theme stylesheet or template for the directory.
* @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 );
}
/**
* Return 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);
}
/**
* Locate 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();
}
/**
* Locate 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();
}
/**
* Locate 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;
}
if ( $return = $this->search_for_folder($folder) )
$this->cache[ $folder ] = $return;
return $return;
}
/**
* Locate 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 == $last_index )
continue; // We want this to be caught by the next code block.
/*
* Working from /home/ to /user/ to /wordpress/ see if that file exists within
* the current folder, If it's found, change into it and follow through looking
* for it. If it cant find WordPress down that route, it'll continue onto the next
* folder level, and see if that matches, and so on. If it reaches the end, and still
* cant find it, it'll return false for the entire function.
*/
if ( isset($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 ) );
if ( $ret = $this->search_for_folder( $newfolder, $newdir, $loop) )
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 );
}
/**
* Return the *nix-style file permissions for a file.
*
* From the PHP documentation page for fileperms().
*
* @link https://secure.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
* @return string the last 3 characters of the octal number
*/
public function getchmod( $file ) {
return '777';
}
/**
* Convert *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://secure.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; $i++ ) {
if ($key = array_search($attarray[$i], $legal)) {
$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;
}
/**
* Determine 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)
}
/**
* Change the ownership of a file / folder.
*
* Default behavior is to do nothing, override this in your subclass, if desired.
*
* @since 2.5.0
*
* @param string $file Path to the file.
* @param mixed $owner A user name or number.
* @param bool $recursive Optional. If set True changes file owner recursivly. Defaults to False.
* @return bool Returns true on success or false on failure.
*/
public function chown( $file, $owner, $recursive = false ) {
return false;
}
/**
* Connect filesystem.
*
* @since 2.5.0
* @abstract
*
* @return bool True on success or false on failure (always true for WP_Filesystem_Direct).
*/
public function connect() {
return true;
}
/**
* Read entire file into a string.
*
* @since 2.5.0
* @abstract
*
* @param string $file Name of the file to read.
* @return mixed|bool Returns the read data or false on failure.
*/
public function get_contents( $file ) {
return false;
}
/**
* Read entire file into an array.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @return array|bool the file contents in an array or false on failure.
*/
public function get_contents_array( $file ) {
return false;
}
/**
* Write 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 $mode Optional. The file permissions as octal number, usually 0644.
* @return bool False on failure.
*/
public function put_contents( $file, $contents, $mode = false ) {
return false;
}
/**
* Get the current working directory.
*
* @since 2.5.0
* @abstract
*
* @return string|bool The current working directory on success, or false on failure.
*/
public function cwd() {
return false;
}
/**
* Change current directory.
*
* @since 2.5.0
* @abstract
*
* @param string $dir The new current directory.
* @return bool|string
*/
public function chdir( $dir ) {
return false;
}
/**
* Change the file group.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @param mixed $group A group name or number.
* @param bool $recursive Optional. If set True changes file group recursively. Defaults to False.
* @return bool|string
*/
public function chgrp( $file, $group, $recursive = false ) {
return false;
}
/**
* Change filesystem permissions.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @param int $mode Optional. The permissions as octal number, usually 0644 for files, 0755 for dirs.
* @param bool $recursive Optional. If set True changes file group recursively. Defaults to False.
* @return bool|string
*/
public function chmod( $file, $mode = false, $recursive = false ) {
return false;
}
/**
* Get the file owner.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @return string|bool Username of the user or false on error.
*/
public function owner( $file ) {
return false;
}
/**
* Get the file's group.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @return string|bool The group or false on error.
*/
public function group( $file ) {
return false;
}
/**
* Copy 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 $mode Optional. The permissions as octal number, usually 0644 for files, 0755 for dirs.
* Default false.
* @return bool True if file copied successfully, False otherwise.
*/
public function copy( $source, $destination, $overwrite = false, $mode = false ) {
return false;
}
/**
* Move 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 if file copied successfully, False otherwise.
*/
public function move( $source, $destination, $overwrite = false ) {
return false;
}
/**
* Delete a file or directory.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to the file.
* @param bool $recursive Optional. If set True changes file group recursively. Defaults to False.
* Default false.
* @param bool $type Type of resource. 'f' for file, 'd' for directory.
* Default false.
* @return bool True if the file or directory was deleted, false on failure.
*/
public function delete( $file, $recursive = false, $type = false ) {
return false;
}
/**
* Check if a file or directory exists.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to file/directory.
* @return bool Whether $file exists or not.
*/
public function exists( $file ) {
return false;
}
/**
* Check 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;
}
/**
* Check 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;
}
/**
* Check 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;
}
/**
* Check if a file or directory is writable.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to file.
* @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|bool Unix timestamp representing last access time.
*/
public function atime( $file ) {
return false;
}
/**
* Gets the file modification time.
*
* @since 2.5.0
* @abstract
*
* @param string $file Path to file.
* @return int|bool Unix timestamp representing modification time.
*/
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|bool Size of the file in bytes.
*/
public function size( $file ) {
return false;
}
/**
* Set 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 Whether operation was successful or not.
*/
public function touch( $file, $time = 0, $atime = 0 ) {
return false;
}
/**
* Create a directory.
*
* @since 2.5.0
* @abstract
*
* @param string $path Path for new directory.
* @param mixed $chmod Optional. The permissions as octal number, (or False to skip chmod)
* Default false.
* @param mixed $chown Optional. A user name or number (or False to skip chown)
* Default false.
* @param mixed $chgrp Optional. A group name or number (or False to skip chgrp).
* Default false.
* @return bool False if directory cannot be created, true otherwise.
*/
public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) {
return false;
}
/**
* Delete 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 Whether directory is deleted successfully or not.
*/
public function rmdir( $path, $recursive = false ) {
return false;
}
/**
* Get 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|bool {
* Array of files. False if unable to list directory contents.
*
* @type string $name Name of the file/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