Launcher/LaunchServer/src/main/java/ru/gravit/launchserver/auth/provider/MojangAuthProvider.java

90 lines
3.4 KiB
Java

package ru.gravit.launchserver.auth.provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.UUID;
import java.util.regex.Pattern;
import com.eclipsesource.json.Json;
import com.eclipsesource.json.JsonObject;
import com.eclipsesource.json.JsonValue;
import com.eclipsesource.json.WriterConfig;
import ru.gravit.launcher.helper.IOHelper;
import ru.gravit.launcher.serialize.config.entry.BlockConfigEntry;
public final class MojangAuthProvider extends AuthProvider {
private static final Pattern UUID_REGEX = Pattern.compile("(\\w{8})(\\w{4})(\\w{4})(\\w{4})(\\w{12})");
private static final URL URL;
static {
try {
URL = new URL("https://authserver.mojang.com/authenticate");
} catch (MalformedURLException e) {
throw new InternalError(e);
}
}
public static JsonObject makeJSONRequest(URL url, JsonObject request) throws IOException {
// Make authentication request
HttpURLConnection connection = IOHelper.newConnectionPost(url);
connection.setRequestProperty("Content-Type", "application/json");
try (OutputStream output = connection.getOutputStream()) {
output.write(request.toString(WriterConfig.MINIMAL).getBytes(StandardCharsets.UTF_8));
}
connection.getResponseCode(); // Actually make request
// Read response
InputStream errorInput = connection.getErrorStream();
try (InputStream input = errorInput == null ? connection.getInputStream() : errorInput) {
String charset = connection.getContentEncoding();
Charset charsetObject = charset == null ?
IOHelper.UNICODE_CHARSET : Charset.forName(charset);
// Parse response
String json = new String(IOHelper.read(input), charsetObject);
return json.isEmpty() ? null : Json.parse(json).asObject();
}
}
public MojangAuthProvider(BlockConfigEntry block) {
super(block);
}
@Override
public AuthProviderResult auth(String login, String password, String ip) throws Exception {
JsonObject request = Json.object().
add("agent", Json.object().add("name", "Minecraft").add("version", 1)).
add("username", login).add("password", password);
// Verify there's no error
JsonObject response = makeJSONRequest(URL, request);
if (response == null)
authError("Empty mojang response");
JsonValue errorMessage = response.get("errorMessage");
if (errorMessage != null)
authError(errorMessage.asString());
// Parse JSON data
JsonObject selectedProfile = response.get("selectedProfile").asObject();
String username = selectedProfile.get("name").asString();
String accessToken = response.get("clientToken").asString();
UUID uuid = UUID.fromString(UUID_REGEX.matcher(selectedProfile.get("id").asString()).replaceFirst("$1-$2-$3-$4-$5"));
String launcherToken = response.get("accessToken").asString();
// We're done
return new MojangAuthProviderResult(username, accessToken, uuid, launcherToken);
}
@Override
public void close() {
// Do nothing
}
}