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package se.leap.bitmaskclient;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
import okhttp3.Dns;
class DnsResolver implements Dns {
@Override
public List<InetAddress> lookup(String hostname) throws UnknownHostException {
try {
return Dns.SYSTEM.lookup(hostname);
} catch (UnknownHostException e) {
ProviderObservable observable = ProviderObservable.getInstance();
Provider currentProvider;
if (observable.getProviderToSetup() != null) {
currentProvider = observable.getProviderToSetup();
} else {
currentProvider = observable.getCurrentProvider();
}
if (currentProvider.hasProviderIp()) {
ArrayList<InetAddress> addresses = new ArrayList<>();
addresses.add(InetAddress.getByAddress(hostname, currentProvider.getProviderIpAsBytes()));
return addresses;
} else {
throw new UnknownHostException("Hostname " + hostname + " not found");
}
}
}
}
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