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Implemented strict check for cached user permissions and existing ACL options. This fix makes sure cached permissions are valid, even if they got already cached.

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git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@8985 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Meik Sievertsen 2008-10-09 13:18:38 +00:00
parent aa27ec5ebb
commit ab5146a72a
1 changed files with 46 additions and 9 deletions
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43
phpBB/includes/auth.php
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@ -71,7 +71,46 @@ class auth
$this->acl_cache($userdata); $this->acl_cache($userdata);
} }
$user_permissions = explode("\n", $userdata['user_permissions']); // Fill ACL array
$this->_fill_acl($userdata['user_permissions']);
// Verify bitstring length with options provided...
$renew = false;
$global_length = sizeof($this->acl_options['global']);
$local_length = sizeof($this->acl_options['local']);
// Specify comparing length (bitstring is padded to 31 bits)
$global_length = ($global_length % 31) ? ($global_length - ($global_length % 31) + 31) : $global_length;
$local_length = ($local_length % 31) ? ($local_length - ($local_length % 31) + 31) : $local_length;
// You thought we are finished now? Noooo... now compare them.
foreach ($this->acl as $forum_id => $bitstring)
{
if (($forum_id && strlen($bitstring) != $local_length) || (!$forum_id && strlen($bitstring) != $global_length))
{
$renew = true;
break;
}
}
// If a bitstring within the list does not match the options, we have a user with incorrect permissions set and need to renew them
if ($renew)
{
$this->acl_cache($userdata);
$this->_fill_acl($userdata['user_permissions']);
}
return;
}
/**
* Fill ACL array with relevant bitstrings from user_permissions column
* @access private
*/
function _fill_acl($user_permissions)
{
$this->acl = array();
$user_permissions = explode("\n", $user_permissions);
foreach ($user_permissions as $f => $seq) foreach ($user_permissions as $f => $seq)
{ {
@ -92,8 +131,6 @@ class auth
} }
} }
} }
return;
} }
/** /**