function getCustomErrorRedirectPage()
{
$oKTErrorConfig =& KTConfig::getSingleton();
$sCustomErrorPage = $oKTErrorConfig->get('CustomErrorMessages/customerrorpagepath');
//if a filname is specified in the config.ini file make it into a url
if (substr($sCustomErrorPage, 0, 4) != 'http') {
$sUrl = KTInit::guessRootUrl();
global $default;
$sRootUrl = ($default->sslEnabled ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'] . $sUrl;
$sCustomErrorPage = $sRootUrl . '/' . $sCustomErrorPage;
}
//checking if file exists
//curl options will return the page header, we can then check for an http error
$CurlSession = curl_init();
curl_setopt($CurlSession, CURLOPT_URL, $sCustomErrorPage);
curl_setopt($CurlSession, CURLOPT_HEADER, true);
curl_setopt($CurlSession, CURLOPT_NOBODY, true);
curl_setopt($CurlSession, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($CurlSession);
curl_close($CurlSession);
preg_match("/HTTP\\/1\\.[1|0]\\s(\\d{3})/", $data, $matches);
//checking for http error - if the retunr code isn't 200 then we have an error
//on an error we return 0
if ($matches[1] != '200') {
//if file does not exist return error code of 0
return '0';
} else {
//if file exists return error page address
return $sCustomErrorPage;
}
}
}
// }}}
$KTInit = new KTInit();
$KTInit->initConfig();
$KTInit->setupI18n();
//====================================
define('KTLOG_CACHE', false);
if (isset($GLOBALS['kt_test'])) {
$KTInit->initTesting();
}
$oKTConfig = KTConfig::getSingleton();
if ($oKTConfig->get('CustomErrorMessages/customerrormessages') == 'on') {
$KTInit->catchFatalErrors();
}
if (phpversion() < 5) {
$rootUrl = $KTInit->guessRootUrl();
$sErrorPage = 'http://' . $_SERVER['HTTP_HOST'] . $rootUrl . '/' . 'customerrorpage.php';
session_start();
$_SESSION['sErrorMessage'] = 'KnowledgeTree now requires that PHP version 5 is installed. PHP version 4 is no longer supported.';
header('location:' . $sErrorPage);
exit(0);
}
$KTInit->setupServerVariables();
// instantiate log
$loggingSupport = $KTInit->setupLogging();
// Send all PHP errors to a file (and maybe a window)
set_error_handler(array('KTInit', 'handlePHPError'));
$KTInit->setupRandomSeed();
$GLOBALS['KTRootUrl'] = $oKTConfig->get('KnowledgeTree/rootUrl');
require_once KT_LIB_DIR . '/database/lookup.inc';
// table mapping entries
