private HttpUrl pingTunnel(ServiceJson serviceJson) {
if (serviceJson == null || Util.isEmpty(serviceJson.relay_ip) || serviceJson.relay_port == 0) {
return null;
}
// set timeout to 10 seconds
OkHttpClient client =
defaultClient
.newBuilder()
.connectTimeout(5, TimeUnit.SECONDS)
.readTimeout(5, TimeUnit.SECONDS)
.build();
String relayIp = serviceJson.relay_ip;
int relayPort = serviceJson.relay_port;
// tunnel address
ExecutorService executor = Executors.newFixedThreadPool(10);
CompletionService<String> service = new ExecutorCompletionService<>(executor);
service.submit(createPingTask(client, relayIp, relayPort));
try {
Future<String> future = service.take();
if (future != null) {
String host = future.get();
if (!Util.isEmpty(host)) {
return requestUrl.newBuilder().host(host).port(relayPort).build();
}
}
} catch (InterruptedException | ExecutionException ignored) {
}
// shutdown executors
executor.shutdownNow();
return null;
}
public HttpUrl pingDSM(ServerInfoJson infoJson) {
// set timeout to 5 seconds
final OkHttpClient client =
defaultClient
.newBuilder()
.connectTimeout(5, TimeUnit.SECONDS)
.readTimeout(5, TimeUnit.SECONDS)
.build();
ServerJson serverJson = infoJson.server;
if (serverJson == null) {
throw new IllegalArgumentException("serverJson == null");
}
ServiceJson serviceJson = infoJson.service;
if (serviceJson == null) {
throw new IllegalArgumentException("serviceJson == null");
}
int port = serviceJson.port;
int externalPort = serviceJson.ext_port;
// internal address(192.168.x.x/10.x.x.x)
ExecutorService executor = Executors.newFixedThreadPool(10);
CompletionService<String> internalService = new ExecutorCompletionService<>(executor);
List<InterfaceJson> ifaces = serverJson._interface;
AtomicInteger internalCount = new AtomicInteger(0);
if (ifaces != null) {
for (final InterfaceJson iface : ifaces) {
internalService.submit(createPingTask(client, iface.ip, port));
internalCount.incrementAndGet();
if (iface.ipv6 != null) {
for (Ipv6Json ipv6 : iface.ipv6) {
String ipv6Address = "[" + ipv6.address + "]";
internalService.submit(createPingTask(client, ipv6Address, port));
internalCount.incrementAndGet();
}
}
}
}
// host address(ddns/fqdn)
ExecutorCompletionService<String> hostService = new ExecutorCompletionService<>(executor);
AtomicInteger hostCount = new AtomicInteger(0);
// ddns
if (!Util.isEmpty(serverJson.ddns) && !serverJson.ddns.equals("NULL")) {
hostService.submit(createPingTask(client, serverJson.ddns, port));
hostCount.incrementAndGet();
}
// fqdn
if (!Util.isEmpty(serverJson.fqdn) && !serverJson.fqdn.equals("NULL")) {
hostService.submit(createPingTask(client, serverJson.fqdn, port));
hostCount.incrementAndGet();
}
// external address(public ip address)
ExecutorCompletionService<String> externalService = new ExecutorCompletionService<>(executor);
AtomicInteger externalCount = new AtomicInteger(0);
if (serverJson.external != null) {
String ip = serverJson.external.ip;
if (!Util.isEmpty(ip)) {
externalService.submit(
createPingTask(client, ip, (externalPort != 0) ? externalPort : port));
externalCount.incrementAndGet();
}
String ipv6 = serverJson.external.ipv6;
if (!Util.isEmpty(ipv6) && !ipv6.equals("::")) {
externalService.submit(
createPingTask(client, "[" + ipv6 + "]", (externalPort != 0) ? externalPort : port));
externalCount.incrementAndGet();
}
}
while (internalCount.getAndDecrement() > 0) {
try {
Future<String> future = internalService.take();
if (future != null) {
String host = future.get();
if (!Util.isEmpty(host)) {
return requestUrl.newBuilder().host(host).port(port).build();
}
}
} catch (InterruptedException | ExecutionException ignored) {
}
}
while (hostCount.getAndDecrement() > 0) {
try {
Future<String> future = hostService.take();
if (future != null) {
String host = future.get();
if (!Util.isEmpty(host)) {
return requestUrl.newBuilder().host(host).port(port).build();
}
}
} catch (InterruptedException | ExecutionException ignored) {
}
}
while (externalCount.getAndDecrement() > 0) {
try {
Future<String> future = externalService.take();
if (future != null) {
String host = future.get();
if (!Util.isEmpty(host)) {
return requestUrl.newBuilder().host(host).port(port).build();
}
}
} catch (InterruptedException | ExecutionException ignored) {
// ignored.printStackTrace();
}
}
// shutdown executors
executor.shutdownNow();
return null;
}