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package cuchaz.enigma.network;
import java.util.Objects;
import org.jetbrains.annotations.Nullable;
public class ServerAddress {
public final String address;
public final int port;
private ServerAddress(String address, int port) {
this.address = address;
this.port = port;
}
@Nullable
public static ServerAddress of(String address, int port) {
if (port < 0 || port > 65535) {
return null;
}
if (address == null) {
return null;
}
if (address.isEmpty()) {
return null;
}
if (!address.matches("[a-zA-Z0-9.:-]+")) {
return null;
}
if (address.startsWith("-") || address.endsWith("-")) {
return null;
}
return new ServerAddress(address, port);
}
@Nullable
public static ServerAddress from(String s, int defaultPort) {
String address;
int idx = s.indexOf(']');
if (s.startsWith("[") && idx != -1) {
address = s.substring(1, idx);
s = s.substring(idx + 1);
} else if (s.chars().filter(c -> c == ':').count() == 1) {
idx = s.indexOf(':');
address = s.substring(0, idx);
s = s.substring(idx);
} else {
address = s;
s = "";
}
int port;
if (s.isEmpty()) {
port = defaultPort;
} else if (s.startsWith(":")) {
s = s.substring(1);
try {
port = Integer.parseInt(s);
} catch (NumberFormatException e) {
return null;
}
} else {
return null;
}
return ServerAddress.of(address, port);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ServerAddress that = (ServerAddress) o;
return port == that.port && Objects.equals(address, that.address);
}
@Override
public int hashCode() {
return Objects.hash(address, port);
}
@Override
public String toString() {
return String.format("ServerAddress { address: '%s', port: %d }", address, port);
}
}
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