[Chameleon-dev] [Bug 1113] New: MLT function does not check for empty array

[bugzilla-daemon at bugzilla.maptools.org]

http://bugzilla.maptools.org/show_bug.cgi?id=1113

           Summary: MLT function does not check for empty array
           Product: Chameleon
           Version: 2.2
          Platform: PC
        OS/Version: Windows 2000
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core
        AssignedTo: chameleon-dev at lists.maptools.org
        ReportedBy: bartvde at xs4all.nl


Trying to use a different language than the default language without having a
multilingual template, an empty array is put into the loadResource function in
mlt.php. There are checks in the function on empty strings but not on empty arrays.

function loadResource( $szName, $mLang = "" )

so $mLang is an empty array of size 0.

If this happens I made a change to default back to the original language, ie:

       elseif ($mLang != "")
       {
           // Bart, if array size is 0, back to default language
           if (sizeof($mLang) == 0) { $mLang = $this->szLanguage; }
           foreach ($mLang as $szKey => $szLang)
           {
               $mLang[$szKey] = preg_replace("/(\W)/", "_", $szLang);
           }
       }

This is caused by:

In session.inc.php resources are loaded using:

$oMLT->loadResource( $GLOBALS["szLanguageResource"], $_SESSION['aszLang'] );

$_SESSION['aszLang'] is filled up in chameleon.php with a list of regional
templates.

       // build list of languages to load
       $_SESSION['aszLang'] = array_keys( $this->maszTemplates );

But my application does not have regional templates (one language app) so this
is an empty array which is being passed into loadResource.

In summary, fix for mlt.php is:

        elseif ($mLang != "")
        {
            // if array size is 0, back to szLanguage
            if (sizeof($mLang) == 0) { $mLang = $this->szLanguage; }
            foreach ($mLang as $szKey => $szLang)



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