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Wordpress 3.1.1
[autoinstalls/wordpress.git] / wp-admin / includes / class-wp-filesystem-direct.php
index 45972a3875f2f29b83e929296e411658c3ff3a80..94319bce0d3a7f2134eda1e68cfd45d4a4632858 100644 (file)
 <?php
+/**
+ * WordPress Direct Filesystem.
+ *
+ * @package WordPress
+ * @subpackage Filesystem
+ */
 
-class WP_Filesystem_Direct{
-       var $permission = null;
-       var $errors = array();
-       function WP_Filesystem_Direct($arg){
+/**
+ * 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 {
+       var $errors = null;
+       /**
+        * constructor
+        *
+        * @param mixed $arg ingored argument
+        */
+       function WP_Filesystem_Direct($arg) {
+               $this->method = 'direct';
                $this->errors = new WP_Error();
-               $this->permission = umask();
        }
-       function connect(){
+       /**
+        * connect filesystem.
+        *
+        * @return bool Returns true on success or false on failure (always true for WP_Filesystem_Direct).
+        */
+       function connect() {
                return true;
        }
-       function setDefaultPermissions($perm){
-               $this->permission = $perm;
-       }
-       function find_base_dir($base = '.', $echo = false){
-               return str_replace('\\','/',ABSPATH);
-       }
-       function get_base_dir($base = '.', $echo = false){
-               return $this->find_base_dir($base, $echo);
-       }
-       function get_contents($file){
+       /**
+        * 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($file);
        }
-       function get_contents_array($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($file);
        }
-       function put_contents($file,$contents,$mode=false,$type=''){
-               if ( ! ($fp = @fopen($file,'w'.$type)) )
+       /**
+        * 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, $mode = false ) {
+               if ( ! ($fp = @fopen($file, 'w')) )
                        return false;
-               @fwrite($fp,$contents);
+               @fwrite($fp, $contents);
                @fclose($fp);
-               $this->chmod($file,$mode);
+               $this->chmod($file, $mode);
                return true;
        }
-       function cwd(){
+       /**
+        * Gets the current working directory
+        *
+        * @return string|bool the current working directory on success, or false on failure.
+        */
+       function cwd() {
                return @getcwd();
        }
-       function chdir($dir){
+       /**
+        * Change directory
+        *
+        * @param string $dir The new current directory.
+        * @return bool Returns true on success or false on failure.
+        */
+       function chdir($dir) {
                return @chdir($dir);
        }
-       function chgrp($file,$group,$recursive=false){
-               if( ! $this->exists($file) )
+       /**
+        * Changes file group
+        *
+        * @param string $file Path to the file.
+        * @param mixed $group A group name or number.
+        * @param bool $recursive (optional) If set True changes file group recursivly. Defaults to False.
+        * @return bool Returns true on success or false on failure.
+        */
+       function chgrp($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);
+               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 $filename)
+               foreach ($filelist as $filename)
                        $this->chgrp($file . $filename, $group, $recursive);
 
                return true;
        }
-       function chmod($file,$mode=false,$recursive=false){
-               if( ! $mode )
-                       $mode = $this->permission;
-               if( ! $this->exists($file) )
-                       return false;
-               if( ! $recursive )
-                       return @chmod($file,$mode);
-               if( ! $this->is_dir($file) )
-                       return @chmod($file,$mode);
+       /**
+        * 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 $recursive (optional) If set True changes file group recursivly. Defaults to False.
+        * @return bool Returns true on success or false on failure.
+        */
+       function chmod($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($filelist as $filename)
+               foreach ( (array)$filelist as $filename => $filemeta)
                        $this->chmod($file . $filename, $mode, $recursive);
 
                return true;
        }
-       function chown($file,$owner,$recursive=false){
-               if( ! $this->exists($file) )
+       /**
+        * Changes file owner
+        *
+        * @param string $file Path to the file.
+        * @param mixed $owner A user name or number.
+        * @param bool $recursive (optional) If set True changes file owner recursivly. Defaults to False.
+        * @return bool Returns true on success or false on failure.
+        */
+       function chown($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);
+               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,$recursive);
+               foreach ($filelist as $filename) {
+                       $this->chown($file . '/' . $filename, $owner, $recursive);
                }
                return true;
        }
-       function owner($file){
+       /**
+        * Gets file owner
+        *
+        * @param string $file Path to the file.
+        * @return string Username of the user.
+        */
+       function owner($file) {
                $owneruid = @fileowner($file);
-               if( ! $owneruid )
+               if ( ! $owneruid )
                        return false;
-               if( !function_exists('posix_getpwuid') )
+               if ( ! function_exists('posix_getpwuid') )
                        return $owneruid;
                $ownerarray = posix_getpwuid($owneruid);
                return $ownerarray['name'];
        }
-       function getchmod($file){
-               return @fileperms($file);
-       }
-       function gethchmod($file){
-               //From the PHP.net page for ...?
-               $perms = $this->getchmod($file);
-               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 $info;
-       }
-       function getnumchmodfromh($mode) {
-               $realmode = "";
-               $legal =  array("","w","r","x","-");
-               $attarray = preg_split("//",$mode);
-               for($i=0;$i<count($attarray);$i++){
-                  if($key = array_search($attarray[$i],$legal)){
-                          $realmode .= $legal[$key];
-                  }
-               }
-               $mode = str_pad($realmode,9,'-');
-               $trans = array('-'=>'0','r'=>'4','w'=>'2','x'=>'1');
-               $mode = strtr($mode,$trans);
-               $newmode = '';
-               $newmode .= $mode[0]+$mode[1]+$mode[2];
-               $newmode .= $mode[3]+$mode[4]+$mode[5];
-               $newmode .= $mode[6]+$mode[7]+$mode[8];
-               return $newmode;
-       }
-       function group($file){
+       /**
+        * 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 )
+               if ( ! $gid )
                        return false;
-               if( !function_exists('posix_getgrgid') )
+               if ( ! function_exists('posix_getgrgid') )
                        return $gid;
                $grouparray = posix_getgrgid($gid);
                return $grouparray['name'];
        }
 
-       function copy($source,$destination,$overwrite=false){
-               if( ! $overwrite && $this->exists($destination) )
+       function copy($source, $destination, $overwrite = false) {
+               if ( ! $overwrite && $this->exists($destination) )
                        return false;
-               return copy($source,$destination);
+
+               return copy($source, $destination);
        }
 
-       function move($source,$destination,$overwrite=false){
-               //Possible to use rename()?
-               if( $this->copy($source,$destination,$overwrite) && $this->exists($destination) ){
+       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 {
@@ -192,12 +216,14 @@ class WP_Filesystem_Direct{
                }
        }
 
-       function delete($file, $recursive=false){
-               $file = str_replace('\\','/',$file); //for win32, occasional problems deleteing files otherwise
+       function delete($file, $recursive = false) {
+               if ( empty($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 deleteing files otherwise
 
-               if( $this->is_file($file) )
+               if ( $this->is_file($file) )
                        return @unlink($file);
-               if( !$recursive && $this->is_dir($file) )
+               if ( ! $recursive && $this->is_dir($file) )
                        return @rmdir($file);
 
                //At this point its a folder, and we're in recursive mode
@@ -205,103 +231,106 @@ class WP_Filesystem_Direct{
                $filelist = $this->dirlist($file, true);
 
                $retval = true;
-               if( is_array($filelist) ) //false if no files, So check first.
-                       foreach($filelist as $filename=>$fileinfo)
-                               if( ! $this->delete($file . $filename, $recursive) )
+               if ( is_array($filelist) ) //false if no files, So check first.
+                       foreach ($filelist as $filename => $fileinfo)
+                               if ( ! $this->delete($file . $filename, $recursive) )
                                        $retval = false;
 
-               if( ! @rmdir($file) )
-                       return false;
+               if ( file_exists($file) && ! @rmdir($file) )
+                       $retval = false;
                return $retval;
        }
 
-       function exists($file){
+       function exists($file) {
                return @file_exists($file);
        }
 
-       function is_file($file){
+       function is_file($file) {
                return @is_file($file);
        }
 
-       function is_dir($path){
+       function is_dir($path) {
                return @is_dir($path);
        }
 
-       function is_readable($file){
+       function is_readable($file) {
                return @is_readable($file);
        }
 
-       function is_writable($file){
+       function is_writable($file) {
                return @is_writable($file);
        }
 
-       function atime($file){
+       function atime($file) {
                return @fileatime($file);
        }
 
-       function mtime($file){
+       function mtime($file) {
                return @filemtime($file);
        }
-       function size($file){
+       function size($file) {
                return @filesize($file);
        }
 
-       function touch($file, $time = 0, $atime = 0){
-               if($time == 0)
+       function touch($file, $time = 0, $atime = 0) {
+               if ($time == 0)
                        $time = time();
-               if($atime == 0)
+               if ($atime == 0)
                        $atime = time();
-               return @touch($file,$time,$atime);
+               return @touch($file, $time, $atime);
        }
 
-       function mkdir($path, $chmod = false, $chown = false, $chgrp = false){
-               if( ! $chmod)
-                       $chmod = $this->permission;
+       function mkdir($path, $chmod = false, $chown = false, $chgrp = false) {
+               // safe mode fails with a trailing slash under certain PHP versions.
+               $path = untrailingslashit($path);
+               if ( empty($path) )
+                       $path = '/';
 
-               if( !@mkdir($path,$chmod) )
+               if ( ! $chmod )
+                       $chmod = FS_CHMOD_DIR;
+
+               if ( ! @mkdir($path) )
                        return false;
-               if( $chown )
-                       $this->chown($path,$chown);
-               if( $chgrp )
-                       $this->chgrp($path,$chgrp);
+               $this->chmod($path, $chmod);
+               if ( $chown )
+                       $this->chown($path, $chown);
+               if ( $chgrp )
+                       $this->chgrp($path, $chgrp);
                return true;
        }
 
-       function rmdir($path,$recursive=false){
-               //Currently unused and untested, Use delete() instead.
-               if( ! $recursive )
-                       return @rmdir($path);
-               //recursive:
-               $filelist = $this->dirlist($path);
-               foreach($filelist as $filename=>$det){
-                       if ( '/' == substr($filename,-1,1) )
-                               $this->rmdir($path.'/'.$filename,$recursive);
-                       @rmdir($filename);
-               }
-               return @rmdir($path);
+       function rmdir($path, $recursive = false) {
+               return $this->delete($path, $recursive);
        }
 
-       function dirlist($path,$incdot=false,$recursive=false){
-               if( $this->is_file($path) ){
-                       $limitFile = basename($path);
+       function dirlist($path, $include_hidden = true, $recursive = false) {
+               if ( $this->is_file($path) ) {
+                       $limit_file = basename($path);
                        $path = dirname($path);
                } else {
-                       $limitFile = false;
+                       $limit_file = false;
                }
-               if( ! $this->is_dir($path) )
+
+               if ( ! $this->is_dir($path) )
+                       return false;
+
+               $dir = @dir($path);
+               if ( ! $dir )
                        return false;
 
                $ret = array();
-               $dir = dir($path);
-               while (false !== ($entry = $dir->read())) {
+
+               while (false !== ($entry = $dir->read()) ) {
                        $struc = array();
-                       $struc['name']          = $entry;
+                       $struc['name'] = $entry;
 
-                       if( '.' == $struc['name'] || '..' == $struc['name'] )
-                               continue; //Do not care about these folders.
-                       if( '.' == $struc['name'][0] && !$incdot)
+                       if ( '.' == $struc['name'] || '..' == $struc['name'] )
                                continue;
-                       if( $limitFile && $struc['name'] != $limitFile)
+
+                       if ( ! $include_hidden && '.' == $struc['name'][0] )
+                               continue;
+
+                       if ( $limit_file && $struc['name'] != $limit_file)
                                continue;
 
                        $struc['perms']         = $this->gethchmod($path.'/'.$entry);
@@ -315,9 +344,9 @@ class WP_Filesystem_Direct{
                        $struc['time']          = date('h:i:s',$struc['lastmodunix']);
                        $struc['type']          = $this->is_dir($path.'/'.$entry) ? 'd' : 'f';
 
-                       if ('d' == $struc['type'] ){
-                               if( $recursive )
-                                       $struc['files'] = $this->dirlist($path.'/'.$struc['name'], $incdot, $recursive);
+                       if ( 'd' == $struc['type'] ) {
+                               if ( $recursive )
+                                       $struc['files'] = $this->dirlist($path . '/' . $struc['name'], $include_hidden, $recursive);
                                else
                                        $struc['files'] = array();
                        }
@@ -328,9 +357,5 @@ class WP_Filesystem_Direct{
                unset($dir);
                return $ret;
        }
-
-       function __destruct(){
-               return;
-       }
 }
 ?>