one of my directories wont keep its permissions

deregular

Not sure if this is the correct section to post this in but here goes.

I have an upload script where users can upload an image, it saves the image inside an 'images' directory, then it takes that image and makes a copy, resizes and stores the resized image in a 'thumbs' directory.

Now for my problem, for some reason periodically, like every 12 or so hours, my 'thumbs' directory permissions revert back to 755, I keep altering them back to 777 but they keep changing back? The 'images' directory does it too, but not quite as often.... its a strange one.

anyone ever come across this before? Any ideas?

etully

I'd be interested to know if it changes automagically or if there is something you do every 12 hours or so that has the side effect of changing the permissions on that directory. For example, if you create a directory called "test-thumb" and give it 777, and then you don't have ANY scripts that read or write from that directory, does it also change after 12 hours? If it doesn't change, then it's possible that one of your scripts, for example, might be resetting the permissions without you realizing it.

On the other hand, maybe your web hosting provider is trying to save you from yourself by automatically "fixing" what they perceive must be a mistake. I'd ask them. But first I'd test by creating a test directory and don't touch it AT ALL and see if it changes. If not, then it's probably not the hosting provider.

deregular

I cant see that its the host for any reason unless they may have certain folder names flagged? Ive also already asked them and they swear that its not their end.
As I have an 'avatars' directory in exactly the same place as the 'images' and 'thumbs' directories and the permissions on that never changes.

Ive looked over my script, but for the life of me i can t find anywhere that it may trip a permission change?

Having ruled out all of that. any chance you guys could take a look at this code and see if you can find anything that may trigger it?

cheers

//paths for images and thumbs.. re path and tpath are set in my db.php file
<?php
session_start();
include 'db.php';
session_checker();

if (!isset($HTTP_POST_FILES['userfile'])) exit;
if (is_uploaded_file($HTTP_POST_FILES['userfile']['tmp_name'])) {
if ($HTTP_POST_FILES['userfile']['size']>$max_size) {
        echo "File is too big !<br>\n"; exit; }
if (($HTTP_POST_FILES['userfile']['type']=="image/gif") || ($HTTP_POST_FILES['userfile']['type']=="image/pjpeg") || ($HTTP_POST_FILES['userfile']['type']=="image/jpeg") || ($HTTP_POST_FILES['userfile']['type']=="image/png")) {

    if (file_exists("./".$path . $HTTP_POST_FILES['userfile']['name'])) {
    include'header2.php';
            echo "A file already exists with this name, please rename your file and try again<br>\n"; exit; }

//generate random number
$zufall = rand(1,9999);
$fupl = "$zufall";
$uid = $_SESSION['session_userid'];
$seperator = '*';

    $res = copy($HTTP_POST_FILES['userfile']['tmp_name'], "./" .$path .$uid .$seperator .$fupl .$HTTP_POST_FILES['userfile']['name']);

    if (!$res) { include'header2.php'; echo "Didn't work, please try again<br>\n"; exit; } else {

//set url variable
$drecks = "/";
$imgf = $uid .$seperator .$fupl.$HTTP_POST_FILES['userfile']['name'];
$thbf = $tpath.$imgf;
$urlf = $membersarea .$drecks .$path .$imgf;

//create thumbnails
function createthumb($name,$filename,$new_w,$new_h){
	$system=explode('.',$name);
	if (preg_match('/jpg|jpeg|JPG/',$system[1])){
		$src_img=imagecreatefromjpeg($name);
	}
	if (preg_match('/png|PNG/',$system[1])){
		$src_img=imagecreatefrompng($name);
	}
	if (preg_match('/gif|GIF/',$system[1])){
		$src_img=imagecreatefromgif($name);
	}

$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
if ($old_x > $old_y) {
	$thumb_w=$new_w;
	$thumb_h=$old_y*($new_h/$old_x);
}
if ($old_x < $old_y) {
	$thumb_w=$old_x*($new_w/$old_y);
	$thumb_h=$new_h;
}
if ($old_x == $old_y) {
	$thumb_w=$new_w;
	$thumb_h=$new_h;
}

$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
	imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); 

if (preg_match("/png/",$system[1]))
{
	imagepng($dst_img,$filename);
} 
if (preg_match("/gif/",$system[1]))
{
	imagegif($dst_img,$filename);
}
else {
	imagejpeg($dst_img,$filename);
}
imagedestroy($dst_img); 
imagedestroy($src_img); 
}

createthumb($path.$imgf,$tpath.$imgf,$tsize,$tsize);

////////////make an entry in database? with details of image

foreach( $_POST AS $key => $val ){
		$$key = mysql_real_escape_string($val);
	}
$authorid=mysql_real_escape_string($_SESSION['session_userid']);

$sql = mysql_query("INSERT INTO images (title,body,authorid,category,imageurl,dateadded)
		VALUES('$title', '$body', '$authorid', '$category','$imgf', now())") or die (mysql_error());

//////////////////////////////////////////////////////////////

include'header2.php';
echo"<center>";
echo"<table cellpadding='8' width='100%'>";
echo"<tr><td class='headingmain'><h3>Your image was uploaded successfully!</h3></td></tr>";
echo"<tr><td class='mainbodycenter'>URL of Image</td></tr>";
echo"<tr><td class='mainbodycenter'><input type='text' name='thetext' size='50' value='$urlf'></td></tr>";
echo"<tr><td class='mainbodycenter'><a href='$urlf' target='_blank'><img src='$thbf'></a></td></tr>";
echo"<tr><td class='mainbodycenter'><a href='profile.php'>Back to Profile</a></td></tr>";
echo"<tr><td class='mainbodycenter'><a href='upload.php'>Upload Another Artwork</a></td></tr>";
echo"</table></center>";
}

}else{ include'header2.php'; echo"You selected a wrong filetype!";
}
}

include'footer.php';
?>

thorpe

777 is dangerous, why do you want this folder completely open to the public?

deregular

So that my members can upload images to it. Is there a safer permission that i can use where the image will still be writable by the script? Forgive me for being a little naive, i dont know much about file permissions, just that at 755 i cant write to folders...