is_file() gives "Stat failed" error and no code

skypanther

Can anyone tell me what the following warning message is telling me?

Warning: is_file(): Stat failed for
files/./././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././././. 
in /home/username/public_html/scripts/core/Zip.php on line 1216

The warning is being generated by a script I have that walks a directory tree and adds files to a tar archive. It's happening at the point where the PEAR Tar library is trying to read the files to add them to the tar/gz file. The script works fine on other hosts, leading me to suspect some permission error. But, there's no Stat error code to help me figure things out.

Thanks,
Tim

NogDog

I don't like the looks of that repeating string of "/././.etc...". Makes me wonder if something is looping incorrectly? (I realize that's only circumstantial evidence, just trying to give you some food for thought.)

skypanther

Agreed, something seems to be looping weirdly. But the same code works fine elsewhere. I realized that there's an .htaccess file restricting access to some portions of the file system.

I'm wondering...I use opendir() and a little recursion to build a list of files & directories to be backed up. The list is presented in a tree for the user to select which files and directories to backup. Then, I pass the resulting list of directory names to the Tar package using it's add() method. It's during the add() operation that the problem is cropping up.

I don't get all that ./././etc output from opendir(). I'm not sure what technique the PEAR code uses to walk the tree, but perhaps it reacts to the .htaccess differently than opendir()? I can't quite make sense of all the various functions and such going on in there.

I dunno...
Tim

bradgrafelman

No PHP function should react to any .htaccess file... those files are read and parsed by Apache only...

NogDog

Sort of looks like it's recursing on the current directory (which is represented by "."). Does whatever routine you use to read the contents of a directory filter out the "." and ".." results?

skypanther

Well, the error is happening within the PEAR Tar class. I'll have to look, but I have to assume that it does filter out . and .. especially since it's only on this one host that this script has this issue. Elsewhere it runs just fine.

Thanks bradgrafelman for the assurance that php scripts aren't affected by .htaccess settings.

Tim

skypanther

Here's the relevant code from the Zip.php PEAR class (sorry, this site is using Zip not Tar).

// ----- Read the directory for files and sub-directories
$p_hdir = opendir($p_filename);
$p_hitem = readdir($p_hdir); // '.' directory
$p_hitem = readdir($p_hdir); // '..' directory
while ($p_hitem = readdir($p_hdir))  {
   ...

Could there be a case where opendir() returns something other than . and .. as the first two entries?

I tried this, but I get an error (CGI application did not return a complete set of headers):

// ----- Read the directory for files and sub-directories
$p_hdir = opendir($p_filename);
//$p_hitem = readdir($p_hdir); // '.' directory
//$p_hitem = readdir($p_hdir); // '..' directory
while ($p_hitem = readdir($p_hdir)) {
   if($p_hitem == '.' || $p_hitem == '..') continue;
   ...