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<?php
/**
* WordPress Direct Filesystem.
*
* @package WordPress
* @subpackage Filesystem
*/
/**
* WordPress Filesystem Class for direct PHP file and folder manipulation.
*
* @since 2.5
* @package WordPress
* @subpackage Filesystem
* @uses WP_Filesystem_Base Extends class
*/
class WP_Filesystem_Direct extends WP_Filesystem_Base {
/**
* constructor
*
* @param mixed $arg ignored argument
*/
function __construct($arg) {
$this->method = 'direct';
$this->errors = new WP_Error();
}
/**
* Reads entire file into a string
*
* @param string $file Name of the file to read.
* @return string|bool The function returns the read data or false on failure.
*/
function get_contents($file) {
return @file_get_contents($file);
}
/**
* Reads entire file into an array
*
* @param string $file Path to the file.
* @return array|bool the file contents in an array or false on failure.
*/
function get_contents_array($file) {
return @file($file);
}
/**
* Write a string to a file
*
* @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 upon failure.
*/
function put_contents( $file, $contents, $mode = false ) {
$fp = @fopen( $file, 'wb' );
if ( ! $fp )
return false;
mbstring_binary_safe_encoding();
$data_length = strlen( $contents );
$bytes_written = fwrite( $fp, $contents );
reset_mbstring_encoding();
fclose( $fp );
if ( $data_length !== $bytes_written )
return false;
$this->chmod( $file, $mode );
return true;
}
/**
* Gets the current working directory
*
* @return string|bool the current working directory on success, or false on failure.
*/
function cwd() {
return @getcwd();
}
/**
* Change directory
*
* @param string $dir The new current directory.
* @return bool Returns true on success or false on failure.
*/
function chdir($dir) {
return @chdir($dir);
}
/**
* Changes file group
*
* @param string $file Path to the file.
* @param mixed $group A group name or number.
* @param bool $recursive (optional) If set True changes file group recursively. Defaults to False.
* @return bool Returns true on success or false on failure.
*/
function chgrp($file, $group, $recursive = false) {
if ( ! $this->exists($file) )
return false;
if ( ! $recursive )
return @chgrp($file, $group);
if ( ! $this->is_dir($file) )
return @chgrp($file, $group);
// Is a directory, and we want recursive
$file = trailingslashit($file);
$filelist = $this->dirlist($file);
foreach ($filelist as $filename)
$this->chgrp($file . $filename, $group, $recursive);
return true;
}
/**
* Changes filesystem permissions
*
* @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 $recursive (optional) If set True changes file group recursively. Defaults to False.
* @return bool Returns true on success or false on failure.
*/
function chmod($file, $mode = false, $recursive = false) {
if ( ! $mode ) {
if ( $this->is_file($file) )
$mode = FS_CHMOD_FILE;
elseif ( $this->is_dir($file) )
$mode = FS_CHMOD_DIR;
else
return false;
}
if ( ! $recursive || ! $this->is_dir($file) )
return @chmod($file, $mode);
// Is a directory, and we want recursive
$file = trailingslashit($file);
$filelist = $this->dirlist($file);
foreach ( (array)$filelist as $filename => $filemeta)
$this->chmod($file . $filename, $mode, $recursive);
return true;
}
/**
* Changes file owner
*
* @param string $file Path to the file.
* @param mixed $owner A user name or number.
* @param bool $recursive (optional) If set True changes file owner recursively. Defaults to False.
* @return bool Returns true on success or false on failure.
*/
function chown($file, $owner, $recursive = false) {
if ( ! $this->exists($file) )
return false;
if ( ! $recursive )
return @chown($file, $owner);
if ( ! $this->is_dir($file) )
return @chown($file, $owner);
// Is a directory, and we want recursive
$filelist = $this->dirlist($file);
foreach ($filelist as $filename) {
$this->chown($file . '/' . $filename, $owner, $recursive);
}
return true;
}
/**
* Gets file owner
*
* @param string $file Path to the file.
* @return string|bool Username of the user or false on error.
*/
function owner($file) {
$owneruid = @fileowner($file);
if ( ! $owneruid )
return false;
if ( ! function_exists('posix_getpwuid') )
return $owneruid;
$ownerarray = posix_getpwuid($owneruid);
return $ownerarray['name'];
}
/**
* Gets file permissions
*
* FIXME does not handle errors in fileperms()
*
* @param string $file Path to the file.
* @return string Mode of the file (last 4 digits).
*/
function getchmod($file) {
return substr(decoct(@fileperms($file)),3);
}
function group($file) {
$gid = @filegroup($file);
if ( ! $gid )
return false;
if ( ! function_exists('posix_getgrgid') )
return $gid;
$grouparray = posix_getgrgid($gid);
return $grouparray['name'];
}
function copy($source, $destination, $overwrite = false, $mode = false) {
if ( ! $overwrite && $this->exists($destination) )
return false;
$rtval = copy($source, $destination);
if ( $mode )
$this->chmod($destination, $mode);
return $rtval;
}
function move($source, $destination, $overwrite = false) {
if ( ! $overwrite && $this->exists($destination) )
return false;
// try using rename first. if that fails (for example, source is read only) try copy
if ( @rename($source, $destination) )
return true;
if ( $this->copy($source, $destination, $overwrite) && $this->exists($destination) ) {
$this->delete($source);
return true;
} else {
return false;
}
}
function delete($file, $recursive = false, $type = false) {
if ( empty( $file ) ) // Some filesystems report this as /, which can cause non-expected recursive deletion of all files in the filesystem.
return false;
$file = str_replace( '\\', '/', $file ); // for win32, occasional problems deleting files otherwise
if ( 'f' == $type || $this->is_file($file) )
return @unlink($file);
if ( ! $recursive && $this->is_dir($file) )
return @rmdir($file);
// At this point it's a folder, and we're in recursive mode
$file = trailingslashit($file);
$filelist = $this->dirlist($file, true);
$retval = true;
if ( is_array( $filelist ) ) {
foreach ( $filelist as $filename => $fileinfo ) {
if ( ! $this->delete($file . $filename, $recursive, $fileinfo['type']) )
$retval = false;
}
}
if ( file_exists($file) && ! @rmdir($file) )
$retval = false;
return $retval;
}
function exists($file) {
return @file_exists($file);
}
function is_file($file) {
return @is_file($file);
}
function is_dir($path) {
return @is_dir($path);
}
function is_readable($file) {
return @is_readable($file);
}
function is_writable($file) {
return @is_writable($file);
}
function atime($file) {
return @fileatime($file);
}
function mtime($file) {
return @filemtime($file);
}
function size($file) {
return @filesize($file);
}
function touch($file, $time = 0, $atime = 0) {
if ($time == 0)
$time = time();
if ($atime == 0)
$atime = time();
return @touch($file, $time, $atime);
}
function mkdir($path, $chmod = false, $chown = false, $chgrp = false) {
// safe mode fails with a trailing slash under certain PHP versions.
$path = untrailingslashit($path);
if ( empty($path) )
return false;
if ( ! $chmod )
$chmod = FS_CHMOD_DIR;
if ( ! @mkdir($path) )
return false;
$this->chmod($path, $chmod);
if ( $chown )
$this->chown($path, $chown);
if ( $chgrp )
$this->chgrp($path, $chgrp);
return true;
}
function rmdir($path, $recursive = false) {
return $this->delete($path, $recursive);
}
function dirlist($path, $include_hidden = true, $recursive = false) {
if ( $this->is_file($path) ) {
$limit_file = basename($path);
$path = dirname($path);
} else {
$limit_file = false;
}
if ( ! $this->is_dir($path) )
return false;
$dir = @dir($path);
if ( ! $dir )
return false;
$ret = array();
while (false !== ($entry = $dir->read()) ) {
$struc = array();
$struc['name'] = $entry;
if ( '.' == $struc['name'] || '..' == $struc['name'] )
continue;
if ( ! $include_hidden && '.' == $struc['name'][0] )
continue;
if ( $limit_file && $struc['name'] != $limit_file)
continue;
$struc['perms'] = $this->gethchmod($path.'/'.$entry);
$struc['permsn'] = $this->getnumchmodfromh($struc['perms']);
$struc['number'] = false;
$struc['owner'] = $this->owner($path.'/'.$entry);
$struc['group'] = $this->group($path.'/'.$entry);
$struc['size'] = $this->size($path.'/'.$entry);
$struc['lastmodunix']= $this->mtime($path.'/'.$entry);
$struc['lastmod'] = date('M j',$struc['lastmodunix']);
$struc['time'] = date('h:i:s',$struc['lastmodunix']);
$struc['type'] = $this->is_dir($path.'/'.$entry) ? 'd' : 'f';
if ( 'd' == $struc['type'] ) {
if ( $recursive )
$struc['files'] = $this->dirlist($path . '/' . $struc['name'], $include_hidden, $recursive);
else
$struc['files'] = array();
}
$ret[ $struc['name'] ] = $struc;
}
$dir->close();
unset($dir);
return $ret;
}
}
