403 Forbidden chmod uploaded files

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admin (2008-11-16)

403 Forbidden chmod uploaded files

Just a trick,

If you upload a file through a PHP file ie. this way :

@unlink($file);



  if (is_uploaded_file($_FILES['photo']['tmp_name']))

  {

    rename($_FILES['photo']['tmp_name'], $file);



    chmod($file,0755);

  }

Note the PHP function chmod that changes the rights (Linux) for the file. --> 0755 is the correct mode, 755 will set wrong rights. You don't even have to use the system() function. It may help on certain servers (ie. Gentoo)

Also look at the php.ini file, the safe_mode options.

PHP chmod function :



<?php

chmod($file, 755);   // notation décimale : incorrect

chmod($file, "u+rwx,go+rx"); // chaîne : incorrect

chmod($file, 0755);  // notation octale : valeur du mode correcte

?>



<?php

// Lecture et écriture pour le propriétaire, rien pour le reste

chmod($file, 0600);



// Lecture et écriture pour le propriétaire, lecture pour le reste

chmod($file, 0644);



// Tout pour le propriétaire, lecture et exécution pour le reste

chmod($file, 0755);



// Tout pour le propriétaire, lecture exécution pour le groupe, rien pour le reste

chmod($file, 0750);

?>

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