if (extension_loaded('newrelic')) {
newrelic_add_custom_tracer('ApcCheckIp');
newrelic_add_custom_tracer('CheckIp');
}
include 'common_lib.inc';
error_reporting(E_ERROR | E_PARSE);
$has_apc = function_exists('apc_fetch') && function_exists('apc_store');
$ok = false;
if (isset($_REQUEST['installer']) && isset($_SERVER['REMOTE_ADDR'])) {
$installer = $_REQUEST['installer'];
$installer_postfix = GetSetting('installerPostfix');
if ($installer_postfix) {
$installer .= $installer_postfix;
$ok = true;
} elseif (preg_match('/^(software|browsers\\/[-_a-zA-Z0-9]+)\\.dat$/', $installer)) {
$ok = $has_apc ? ApcCheckIp($installer) : CheckIp($installer);
}
}
if ($ok) {
$file = __DIR__ . '/installers/' . $installer;
$data = $has_apc ? apc_fetch("installer-{$installer}") : null;
if (!$data && is_file($file)) {
$data = file_get_contents($file);
if ($has_apc) {
apc_store("installer-{$installer}", str_pad($data, 1000), 600);
}
}
if (isset($data) && strlen($data)) {
header("Content-type: text/plain");
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
function IsValidIp($ip, $installer)
{
global $has_apc;
$ok = true;
// Make sure it isn't on our banned IP list
$filename = __DIR__ . '/settings/block_installer_ip.txt';
if (is_file($filename)) {
$blocked_addresses = file($filename, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
if (in_array($ip, $blocked_addresses)) {
$ok = false;
}
}
if ($ok) {
$ok = $has_apc ? ApcCheckIp($ip, $installer) : CheckIp($ip, $installer);
if (!$ok) {
logMsg("BLOCKED - {$ip} : {$_REQUEST['installer']}", "log/software.log", true);
}
}
return $ok;
}
