One of the member at other forum replied below
The following is the offending code from the header.php file-
// grab the connecting IP address. //
$connecting_ip = get_ipaddress();
if (empty($connecting_ip)) {
return FALSE;
}
That return statement causes the code in the included file to abort and continue execution in the main script. This skips making the connection to the database and the creation of the $dbexists variable, but no errors are reported or outputted as to why the script took this action.
Whatever get_ipaddress() does (it is probably defined in the functions.php file) does not work when you access the script from a non-local address (I suspect is it checking optional headers that simply don't exist.)
The function is defined as below
function get_ipaddress() {
if (empty($REMOTE_ADDR)) {
if (!empty($_SERVER) && isset($_SERVER['REMOTE_ADDR'])) {
$REMOTE_ADDR = $_SERVER['REMOTE_ADDR'];
}
else if (!empty($_ENV) && isset($_ENV['REMOTE_ADDR'])) {
$REMOTE_ADDR = $_ENV['REMOTE_ADDR'];
}
else if (@getenv('REMOTE_ADDR')) {
$REMOTE_ADDR = getenv('REMOTE_ADDR');
}
}
if (empty($HTTP_X_FORWARDED_FOR)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$HTTP_X_FORWARDED_FOR = $_SERVER['HTTP_X_FORWARDED_FOR'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_X_FORWARDED_FOR'])) {
$HTTP_X_FORWARDED_FOR = $_ENV['HTTP_X_FORWARDED_FOR'];
}
else if (@getenv('HTTP_X_FORWARDED_FOR')) {
$HTTP_X_FORWARDED_FOR = getenv('HTTP_X_FORWARDED_FOR');
}
}
if (empty($HTTP_X_FORWARDED)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_X_FORWARDED'])) {
$HTTP_X_FORWARDED = $_SERVER['HTTP_X_FORWARDED'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_X_FORWARDED'])) {
$HTTP_X_FORWARDED = $_ENV['HTTP_X_FORWARDED'];
}
else if (@getenv('HTTP_X_FORWARDED')) {
$HTTP_X_FORWARDED = getenv('HTTP_X_FORWARDED');
}
}
if (empty($HTTP_FORWARDED_FOR)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_FORWARDED_FOR'])) {
$HTTP_FORWARDED_FOR = $_SERVER['HTTP_FORWARDED_FOR'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_FORWARDED_FOR'])) {
$HTTP_FORWARDED_FOR = $_ENV['HTTP_FORWARDED_FOR'];
}
else if (@getenv('HTTP_FORWARDED_FOR')) {
$HTTP_FORWARDED_FOR = getenv('HTTP_FORWARDED_FOR');
}
}
if (empty($HTTP_FORWARDED)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_FORWARDED'])) {
$HTTP_FORWARDED = $_SERVER['HTTP_FORWARDED'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_FORWARDED'])) {
$HTTP_FORWARDED = $_ENV['HTTP_FORWARDED'];
}
else if (@getenv('HTTP_FORWARDED')) {
$HTTP_FORWARDED = getenv('HTTP_FORWARDED');
}
}
if (empty($HTTP_VIA)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_VIA'])) {
$HTTP_VIA = $_SERVER['HTTP_VIA'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_VIA'])) {
$HTTP_VIA = $_ENV['HTTP_VIA'];
}
else if (@getenv('HTTP_VIA')) {
$HTTP_VIA = getenv('HTTP_VIA');
}
}
if (empty($HTTP_X_COMING_FROM)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_X_COMING_FROM'])) {
$HTTP_X_COMING_FROM = $_SERVER['HTTP_X_COMING_FROM'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_X_COMING_FROM'])) {
$HTTP_X_COMING_FROM = $_ENV['HTTP_X_COMING_FROM'];
}
else if (@getenv('HTTP_X_COMING_FROM')) {
$HTTP_X_COMING_FROM = getenv('HTTP_X_COMING_FROM');
}
}
if (empty($HTTP_COMING_FROM)) {
if (!empty($_SERVER) && isset($_SERVER['HTTP_COMING_FROM'])) {
$HTTP_COMING_FROM = $_SERVER['HTTP_COMING_FROM'];
}
else if (!empty($_ENV) && isset($_ENV['HTTP_COMING_FROM'])) {
$HTTP_COMING_FROM = $_ENV['HTTP_COMING_FROM'];
}
else if (@getenv('HTTP_COMING_FROM')) {
$HTTP_COMING_FROM = getenv('HTTP_COMING_FROM');
}
}
// Gets the default ip sent by the user //
if (!empty($REMOTE_ADDR)) {
$direct_ip = $REMOTE_ADDR;
}
// Gets the proxy ip sent by the user //
$proxy_ip = '';
if (!empty($HTTP_X_FORWARDED_FOR)) {
$proxy_ip = $HTTP_X_FORWARDED_FOR;
} else if (!empty($HTTP_X_FORWARDED)) {
$proxy_ip = $HTTP_X_FORWARDED;
} else if (!empty($HTTP_FORWARDED_FOR)) {
$proxy_ip = $HTTP_FORWARDED_FOR;
} else if (!empty($HTTP_FORWARDED)) {
$proxy_ip = $HTTP_FORWARDED;
} else if (!empty($HTTP_VIA)) {
$proxy_ip = $HTTP_VIA;
} else if (!empty($HTTP_X_COMING_FROM)) {
$proxy_ip = $HTTP_X_COMING_FROM;
} else if (!empty($HTTP_COMING_FROM)) {
$proxy_ip = $HTTP_COMING_FROM;
}
// Returns the true IP if it has been found, else FALSE //
if (empty($proxy_ip)) {
// True IP without proxy
return $direct_ip;
} else {
$is_ip = preg_match('|^([0-9]{1,3}\.){3,3}[0-9]{1,3}|', $proxy_ip, $regs);
if ($is_ip && (count($regs) > 0)) {
// True IP behind a proxy
return $regs[0];
} else {
// Can't define IP: there is a proxy but we don't have
// information about the true IP
return FALSE;
}
}
}
I'm running this on our intranet with proxy setting. Could someone please help me to clear the code so it can get ip from proxy address. Please pm me if you want the link for discussion at other forum
