detectAddress static method
Detects the IP address from which the given HTTP request was received.
req
an HTTP RequestContext request to process. Returns the detected IP address (without a port). If no IP is detected -null
will be returned.
Implementation
static String detectAddress(Request req) {
var ip;
if (req.headers['x-forwarded-for'] != null) {
ip = req.headers['x-forwarded-for']?[0];
}
// Remove port
if (ip != null) {
ip = ip.toString();
var index = ip.indexOf(':');
if (index > 0) {
ip = ip.substring(0, index);
}
}
return ip.toString();
}