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File: class.file_utils.php

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  Classes of marcelo entraigas  >  Explorer  >  class.file_utils.php  >  Download  
File: class.file_utils.php
Role: Class source
Content type: text/plain
Description: main class file
Class: Explorer
Browse server side directories and files
Author: By
Last change: updated version.
Date: 6 years ago
Size: 4,978 bytes
 

Contents

Class file image Download
<?php
/**
 * file_utils is a class designed to bring you basic commands to work over an fs.
 * <br>Last update: October 24, 2006.
 * <br>Author: Marcelo Entraigas <m_entraigas at yahoo dot com>.
 * <br>Licence: BSD License.
 */
define('_linux', strpos(_path,':')? false : true);
define('_slash', _linux? '/' : chr(92));

class
file_utils {
  var
$files = array();
  var
$folders = array();
  var
$chroot = '/var/www/';
 
 
/**
   * class constructor.
   * here is defined the default working path.
   *
   * @param string $path
   */
 
function file_utils ($path='') {
     
//check for '/../', '/./' and '//'
     
$pattern = (_linux == true) ? '([/+\.{0,2}/?]+)' : '([\\+\.{0,2}\\?]+)';
    if(
$path===''){
     
$path = dirname(__FILE__) . _slash;
    }else{
     
$path = ereg_replace($pattern, '/', $path);
    }
   
//default chroot
   
if ($this->chroot != ''){
    
$pattern = sprintf("%s",str_replace('/','\/',$this->chroot));
     if (!
ereg ("^{$pattern}",$path))
           
$path = $this->chroot;
    }
   
define('_path' , $path);
  }


 
/**
   * List a folder content and put it on $this->folders or $this->files.
   *
   * @param string $path
   */
 
function ls($path=''){
   
clearstatcache();
   
$handle = @opendir($path);
    if(
$handle==false){
     
$path = _path;
    }
   
$handle = @opendir($path);
    if(
$handle != false){
        while(
false!==($filename=@readdir($handle))){
            if (
$filename == '..'){
               
$pattern = (_linux == true) ? '(\/+[^/]+\/?)$' : ''; //msdos repace missing!
               
$filepath = ereg_replace($pattern, '', $path);
            }else{
               
$filepath = $path . $filename;
            }
          
$flag = 'folders';
           
$tmp['filepath'] = $filepath;
           
$tmp['description'] = htmlentities($filename);
           
$tmp['perms'] = sprintf("%o",@fileperms($filepath));
           
$tmp['time'] = date("H:i m-d-y",@filemtime($filepath));
            if(@
is_file($filepath)){
         
$flag = 'files';
         
$tmp['size'] = filesize($filepath);
        }
           
$eval = sprintf("\$this->%s['%s'] = \$tmp;", $flag, $filename);
            eval(
$eval);
        }
    }
    @
closedir($handle);
    @
ksort($this->files);
    @
ksort($this->folders);
  }
 
 
/**
   * Get a human redable size
   *
   * @param integer $size
   * @return string
   */
 
function get_size($size){
   
$size = (int) $size;
    if(
$size<1000)
     
$size = sprintf("%0.0f Bytes",$size);
    elseif (
$size<(1024*1000))
     
$size = sprintf("%0.2f KB",$size/1024);
    elseif (
$size<(1024*1024*1000))
     
$size = sprintf("%0.2f MB",$size/(1024*1024));//1048576
   
else
     
$size = sprintf("%0.2f GB",$size/(1024*1024*1024));//1073741824
   
return $size;
  }
 
 
/**
   * Dowload a file from server
   *
   * @param string $file
   */
 
function download($file){
    if(
is_file($file) && @fopen($file,'r')){
       
header("Content-type: application/force-download");
       
header(sprintf("Content-Disposition: attachment; filename=%s",basename($file)));
        @
readfile($file);
    }else{
     
header('HTTP/1.0 401 Unauthorized');
    }
      exit;
  }
 
 
/**
   * Make a folder on the server
   *
   * @param string $dir
   * @param string $perm
   */
 
function mkdir ($dir, $perm='0777'){
   
$tmp = explode(_slash, $dir);
   
$path = '';
    foreach (
$tmp as $local) {
       
$path .= $local . _slash;
     
$mkdir = "if(@mkdir('$dir',$perm)==false) return false;";
      eval(
$mkdir);
    }
  }

 
/**
   * Cahnge file perms
   *
   * @param string $file
   * @param string $perm
   */
 
function chmod ($file, $perm) {
   
$perm = ereg('[1-7]{1,3}',$perm)? sprintf("0%d",$perm) : "'$perm'";
     
$chmod = "@chmod('$file', $perm);";
      eval(
$chmod);
  }
 
 
/**
   * Upload a file/s to the server
   *
   * @param string $to
   */
 
function upload ($to) {
    foreach (
$_FILES as $file) {
      if(
is_uploaded_file($file['tmp_name'])){
        @
move_uploaded_file($file['tmp_name'], $to . basename($file['name']));
        @
chmod($to . basename($file['name']), 0755);
      }
    }
  }
 
 
/**
   * Delete a file from the server
   *
   * @param string $filename
   */
 
function rm ($filename) {
    @
unlink($filename);
  }
 
 
/**
   * Generate/overwrite a file with content
   *
   * @param string $content
   * @param string $to
   * @return true|false
   */
 
function save ($content, $to){
    if(!empty(
$content) and $fp = @fopen($to, 'w')) {
      @
fwrite($fp, $content);
      return @
fclose($fp);
    }
    return
false;
  }

 
/**
   * Generate/append a file with content
   *
   * @param string $content
   * @param string $to
   * @return true|false
   */
 
function append ($string, $to){
    if(!empty(
$string) and $fp = @fopen($to, 'a')) {
      @
fwrite($fp, $string);
      return @
fclose($fp);
    }
    return
false;
  }
}
?>