Re: security's ALLOW_CONSTANTS

On Wed, Feb 25, 2004 at 09:00:46AM -0600, Monte Ohrt wrote:
> Hmm, I don't recall that security setting... it was added in version 4.7
> of the repository, just 9 commits ago.

Hmm, I find it in all releases down to 2.4.0 . 2.3.1 doesn't have it.
But all version only have it defined as false, no version has it
implemented.

 
> On Tue, 2004-02-24 at 18:18, messju mohr wrote:
> > Hello,
> > 
> > someone on IRC came up with this: There is an element in the
> > $security_settings-array "ALLOW_CONSTANTS" (defaulting to false). This
> > one is neither documented nor could I find a Smarty version supporting
> > this setting.
> > 
> > I think prohibiting constants in secured templates is useful. AFAIR
> > ez_sql relies on the database-connection-parameters (including
> > username and password) defined as constants. There may be other libs
> > or apps that need constants defined you don't want to expose to an
> > untrusted party that is allowd to edit templates.
> > 
> > Enabling this setting is easy:
> > 
> > Index: Smarty_Compiler.class.php
> > ===================================================================
> > RCS file: /repository/smarty/libs/Smarty_Compiler.class.php,v
> > retrieving revision 1.315
> > diff -u -r1.315 Smarty_Compiler.class.php
> > --- Smarty_Compiler.class.php   23 Feb 2004 23:14:40 -0000      1.315
> > +++ Smarty_Compiler.class.php   25 Feb 2004 00:08:39 -0000
> > @@ -2016,6 +2016,10 @@
> >                  break;
> > 
> >              case 'const':
> > +                if ($this->security && !$this->security_settings['ALLOW_CONSTANTS']) {
> > +                    $this->_syntax_error("(secure mode) constants not permitted", E_USER_WARNING, __FILE__, __LINE__);
> > +                    return;
> > +                }
> >                  array_shift($indexes);
> >                  $_val = $this->_parse_var_props(substr($indexes[0],1));
> >                  $compiled_ref = '@constant(' . $_val . ')';
> > 
> > 
> > If there are no objections, I'd like to add this to the Smarty-Compiler.
> > 
> > 
> > greetings
> > messju

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