[TYPO3-core] RFC: fix for bug #2592

[Wolfgang Klinger]

 *hiya!*

 On Tue, 21 Feb 2006, Stanislas Rolland wrote the following:
> I think the above line should (also) be removed.

 Right.

> Then +1 (tested both in the context of External URL page type and of 
> direct mail click statistics).

 I found another problem:
 If no referer is set the condition will always match,
 so I added "isset($referer['host'])" to the method below.
 Any problems you see with that?

-------
function checkJumpUrlReferer()  {
    if (strcmp($this->jumpurl,'') && !$this->TYPO3_CONF_VARS['SYS']['doNotCheckReferer']) {
        $referer = parse_url(t3lib_div::getIndpEnv('HTTP_REFERER'));
        if (isset($referer['host']) && !($referer['host'] == t3lib_div::getIndpEnv('TYPO3_HOST_ONLY'))) {
            unset($this->jumpurl);
        }
    }
}
-------

 bye
 Wolfgang