Re: Problem with PHP and mounted folder

On Fri, Feb 28, 2014 at 3:43 PM, Cliff Nieuwenhuis < c.nieuwenhuis@adcidesign.com> wrote: > From: Aziz Saleh [mailto:azizsaleh@gmail.com] > Sent: Friday, February 28, 2014 1:41 PM > To: Cliff Nieuwenhuis > Cc: php-general@lists.php.net > Subject: Re: [PHP] Problem with PHP and mounted folder > > r > > On Fri, Feb 28, 2014 at 1:00 PM, Cliff Nieuwenhuis < > c.nieuwenhuis@adcidesign.com> wrote: > > Cliff Nieuwenhuis wrote: > [snip] > > > The web application needs to read and create files in the projects > folder, but > > PHP doesn't recognize the projects folder as folder! I suspect a > > permissions problem of some sort, but I can't figure out where. > > [snip] > > Aziz Saleh wrote: > > > You guessed right. PHP usually runs under a user with less permissions > (www, user, etc..). You are probably > > logged in as a user with permissions to access that mounted drive while > PHP isn't. Both fixes are ugly, but > > what I would recommend is giving permission to those files as opposed to > giving PHP user more power. > > Thanks for the reply. > > I thought that PHP runs under HTTPD as user 'apache'. I know that the > Apache webserver runs as user 'apache' on my system -- does PHP run as a > different user? Assuming that it does not, wouldn't my successful test of > traversing, reading, and writing files under the 'projects' folder by doing > 'su - apache -s/bin/bash' mean that the permissions are OK? I guess not, > but I can't see why not. > > -- > Cliff Nieuwenhuis > > You are correct, when I said PHP I meant through the server. Try using > runuser command instead. If you have exec enabled, try running an ls > command as a user with higher permissions and see if that works. > > > OK -- tried with runuser. I can see all the projects in the projects > folder, and I can edit files that I should be able to edit (those files > that can be edited by the Windows user account given in the credentials > file that is used by mount.cifs). But I can't descend into the projects > folder via PHP. > > If I browse to http://myserver/projects I see Apache's > listing of all the > subfolders and files. If I click on a test text (test.txt) file in that > list, I see the text file contents in the browser. > > If I write php code like this: > > $contents = file_get_contents('projects/test.txt'); > echo "Contents: $contents"; > > ..it works; the contents are displayed. BUT is_file('projects/test.txt') > will return FALSE. > > > Does file_exists work? is_file will return false if the user doesn't have permission on the parent directory.