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<?php
/**
* WordPress Direct Filesystem.
*
* @package WordPress
* @subpackage Filesystem
*/
/**
* WordPress Filesystem Class for direct PHP file and folder manipulation.
*
* @since 2.5.0
*
* @see WP_Filesystem_Base
*/
class WP_Filesystem_Direct extends WP_Filesystem_Base {
/**
* constructor
*
* @param mixed $arg ignored argument
*/
public 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.
*/
public 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.
*/
public 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.
* Default false.
* @return bool False upon failure, true otherwise.
*/
public 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.
*/
public function cwd() {
return @getcwd();
}
/**
* Change directory
*
* @param string $dir The new current directory.
* @return bool Returns true on success or false on failure.
*/
public 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. Default false.
* @return bool Returns true on success or false on failure.
*/
public 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. Default false.
* @param bool $recursive Optional. If set True changes file group recursively. Default false.
* @return bool Returns true on success or false on failure.
*/
public 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.
* Default false.
* @return bool Returns true on success or false on failure.
*/
public 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.
*/
public 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 3 digits).
*/
public function getchmod( $file ) {
return substr( decoct( @fileperms( $file ) ), -3 );
}
/**
* @param string $file
* @return string|false
*/
public function group( $file ) {
$gid = @filegroup( $file );
if ( ! $gid ) {
return false;
}
if ( ! function_exists( 'posix_getgrgid' ) ) {
return $gid;
}
$grouparray = posix_getgrgid( $gid );
return $grouparray['name'];
}
/**
* @param string $source
* @param string $destination
* @param bool $overwrite
* @param int $mode
* @return bool
*/
public 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;
}
/**
* @param string $source
* @param string $destination
* @param bool $overwrite
* @return bool
*/
public 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;
}
}
/**
* @param string $file
* @param bool $recursive
* @param string $type
* @return bool
*/
public 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;
}
/**
* @param string $file
* @return bool
*/
public function exists( $file ) {
return @file_exists( $file );
}
/**
* @param string $file
* @return bool
*/
public function is_file( $file ) {
return @is_file( $file );
}
/**
* @param string $path
* @return bool
*/
public function is_dir( $path ) {
return @is_dir( $path );
}
/**
* @param string $file
* @return bool
*/
public function is_readable( $file ) {
return @is_readable( $file );
}
/**
* @param string $file
* @return bool
*/
public function is_writable( $file ) {
return @is_writable( $file );
}
/**
* @param string $file
* @return int
*/
public function atime( $file ) {
return @fileatime( $file );
}
/**
* @param string $file
* @return int
*/
public function mtime( $file ) {
return @filemtime( $file );
}
/**
* @param string $file
* @return int
*/
public function size( $file ) {
return @filesize( $file );
}
/**
* @param string $file
* @param int $time
* @param int $atime
* @return bool
*/
public function touch( $file, $time = 0, $atime = 0 ) {
if ( $time == 0 ) {
$time = time();
}
if ( $atime == 0 ) {
$atime = time();
}
return @touch( $file, $time, $atime );
}
/**
* @param string $path
* @param mixed $chmod
* @param mixed $chown
* @param mixed $chgrp
* @return bool
*/
public 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;
}
/**
* @param string $path
* @param bool $recursive
* @return bool
*/
public function rmdir( $path, $recursive = false ) {
return $this->delete( $path, $recursive );
}
/**
* @param string $path
* @param bool $include_hidden
* @param bool $recursive
* @return bool|array
*/
public 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;
}
}