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;
}
}
function getDynamicConfigSettings()
{
$oKTConfig =& KTConfig::getSingleton();
// Override the config setting - KT_DIR is resolved on page load
$oKTConfig->setdefaultns('KnowledgeTree', 'fileSystemRoot', KT_DIR);
// Set ssl to enabled if using https - if the server variable is not set, allow the config setting to take precedence
if (array_key_exists('HTTPS', $_SERVER)) {
if (strtolower($_SERVER['HTTPS']) === 'on') {
$oKTConfig->setdefaultns('KnowledgeTree', 'sslEnabled', 'true');
}
}
$oKTConfig->setdefaultns('KnowledgeTree', 'serverName', $_SERVER['HTTP_HOST']);
// Check for the config setting before overriding with the resolved setting
$serverName = $oKTConfig->get('KnowledgeTree/serverName');
$rootUrl = $oKTConfig->get('KnowledgeTree/rootUrl');
$execSearchPath = $oKTConfig->get('KnowledgeTree/execSearchPath');
$magicDatabase = $oKTConfig->get('KnowledgeTree/magicDatabase');
// base server name
if (empty($serverName) || $serverName == 'default') {
$oKTConfig->setdefaultns('KnowledgeTree', 'serverName', KTUtil::getServerName());
}
// the sub directory or root url
if (empty($rootUrl) || $rootUrl == 'default') {
$oKTConfig->setdefaultns('KnowledgeTree', 'rootUrl', $this->guessRootUrl());
}
// path to find the executable binaries
if (empty($execSearchPath) || $execSearchPath == 'default') {
$oKTConfig->setdefaultns('KnowledgeTree', 'execSearchPath', $_SERVER['PATH']);
}
// path to magic database
if (empty($magicDatabase) || $magicDatabase == 'default') {
$oKTConfig->setdefaultns('KnowledgeTree', 'magicDatabase', KTInit::detectMagicFile());
}
}
