mirror of https://github.com/GeyserMC/Geyser.git
329 lines
15 KiB
Java
329 lines
15 KiB
Java
/*
|
|
* Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* @author GeyserMC
|
|
* @link https://github.com/GeyserMC/Geyser
|
|
*/
|
|
|
|
package org.geysermc.connector.utils;
|
|
|
|
import com.fasterxml.jackson.databind.DeserializationFeature;
|
|
import com.fasterxml.jackson.databind.JsonNode;
|
|
import com.fasterxml.jackson.databind.ObjectMapper;
|
|
import com.fasterxml.jackson.databind.node.JsonNodeType;
|
|
import com.github.steveice10.mc.auth.service.MsaAuthenticationService;
|
|
import com.nimbusds.jose.JWSObject;
|
|
import com.nimbusds.jose.shaded.json.JSONObject;
|
|
import com.nimbusds.jose.shaded.json.JSONValue;
|
|
import com.nukkitx.network.util.Preconditions;
|
|
import com.nukkitx.protocol.bedrock.packet.LoginPacket;
|
|
import com.nukkitx.protocol.bedrock.packet.ServerToClientHandshakePacket;
|
|
import com.nukkitx.protocol.bedrock.util.EncryptionUtils;
|
|
import org.geysermc.connector.GeyserConnector;
|
|
import org.geysermc.connector.configuration.GeyserConfiguration;
|
|
import org.geysermc.connector.network.session.GeyserSession;
|
|
import org.geysermc.connector.network.session.auth.AuthData;
|
|
import org.geysermc.connector.network.session.auth.BedrockClientData;
|
|
import org.geysermc.cumulus.CustomForm;
|
|
import org.geysermc.cumulus.ModalForm;
|
|
import org.geysermc.cumulus.SimpleForm;
|
|
import org.geysermc.cumulus.response.CustomFormResponse;
|
|
import org.geysermc.cumulus.response.ModalFormResponse;
|
|
import org.geysermc.cumulus.response.SimpleFormResponse;
|
|
|
|
import javax.crypto.SecretKey;
|
|
import java.io.IOException;
|
|
import java.net.URI;
|
|
import java.security.KeyPair;
|
|
import java.security.KeyPairGenerator;
|
|
import java.security.PublicKey;
|
|
import java.security.interfaces.ECPublicKey;
|
|
import java.security.spec.ECGenParameterSpec;
|
|
import java.util.Iterator;
|
|
import java.util.UUID;
|
|
|
|
public class LoginEncryptionUtils {
|
|
private static final ObjectMapper JSON_MAPPER = new ObjectMapper().disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
|
|
|
|
private static boolean HAS_SENT_ENCRYPTION_MESSAGE = false;
|
|
|
|
private static boolean validateChainData(JsonNode data) throws Exception {
|
|
if (data.size() != 3) {
|
|
return false;
|
|
}
|
|
|
|
ECPublicKey lastKey = null;
|
|
boolean mojangSigned = false;
|
|
Iterator<JsonNode> iterator = data.iterator();
|
|
while (iterator.hasNext()) {
|
|
JsonNode node = iterator.next();
|
|
JWSObject jwt = JWSObject.parse(node.asText());
|
|
|
|
// x509 cert is expected in every claim
|
|
URI x5u = jwt.getHeader().getX509CertURL();
|
|
if (x5u == null) {
|
|
return false;
|
|
}
|
|
|
|
ECPublicKey expectedKey = EncryptionUtils.generateKey(jwt.getHeader().getX509CertURL().toString());
|
|
// First key is self-signed
|
|
if (lastKey == null) {
|
|
lastKey = expectedKey;
|
|
} else if (!lastKey.equals(expectedKey)) {
|
|
return false;
|
|
}
|
|
|
|
if (!EncryptionUtils.verifyJwt(jwt, lastKey)) {
|
|
return false;
|
|
}
|
|
|
|
if (mojangSigned) {
|
|
return !iterator.hasNext();
|
|
}
|
|
|
|
if (lastKey.equals(EncryptionUtils.getMojangPublicKey())) {
|
|
mojangSigned = true;
|
|
}
|
|
|
|
Object payload = JSONValue.parse(jwt.getPayload().toString());
|
|
Preconditions.checkArgument(payload instanceof JSONObject, "Payload is not an object");
|
|
|
|
Object identityPublicKey = ((JSONObject) payload).get("identityPublicKey");
|
|
Preconditions.checkArgument(identityPublicKey instanceof String, "identityPublicKey node is missing in chain");
|
|
lastKey = EncryptionUtils.generateKey((String) identityPublicKey);
|
|
}
|
|
|
|
return mojangSigned;
|
|
}
|
|
|
|
public static void encryptPlayerConnection(GeyserSession session, LoginPacket loginPacket) {
|
|
JsonNode certData;
|
|
try {
|
|
certData = JSON_MAPPER.readTree(loginPacket.getChainData().toByteArray());
|
|
} catch (IOException ex) {
|
|
throw new RuntimeException("Certificate JSON can not be read.");
|
|
}
|
|
|
|
JsonNode certChainData = certData.get("chain");
|
|
if (certChainData.getNodeType() != JsonNodeType.ARRAY) {
|
|
throw new RuntimeException("Certificate data is not valid");
|
|
}
|
|
|
|
encryptConnectionWithCert(session, loginPacket.getSkinData().toString(), certChainData);
|
|
}
|
|
|
|
private static void encryptConnectionWithCert(GeyserSession session, String clientData, JsonNode certChainData) {
|
|
try {
|
|
GeyserConnector connector = session.getConnector();
|
|
|
|
boolean validChain = validateChainData(certChainData);
|
|
|
|
connector.getLogger().debug(String.format("Is player data valid? %s", validChain));
|
|
|
|
if (!validChain && !session.getConnector().getConfig().isEnableProxyConnections()) {
|
|
session.disconnect(LanguageUtils.getLocaleStringLog("geyser.network.remote.invalid_xbox_account"));
|
|
return;
|
|
}
|
|
JWSObject jwt = JWSObject.parse(certChainData.get(certChainData.size() - 1).asText());
|
|
JsonNode payload = JSON_MAPPER.readTree(jwt.getPayload().toBytes());
|
|
|
|
if (payload.get("extraData").getNodeType() != JsonNodeType.OBJECT) {
|
|
throw new RuntimeException("AuthData was not found!");
|
|
}
|
|
|
|
JsonNode extraData = payload.get("extraData");
|
|
session.setAuthenticationData(new AuthData(
|
|
extraData.get("displayName").asText(),
|
|
UUID.fromString(extraData.get("identity").asText()),
|
|
extraData.get("XUID").asText(),
|
|
certChainData, clientData
|
|
));
|
|
|
|
if (payload.get("identityPublicKey").getNodeType() != JsonNodeType.STRING) {
|
|
throw new RuntimeException("Identity Public Key was not found!");
|
|
}
|
|
|
|
ECPublicKey identityPublicKey = EncryptionUtils.generateKey(payload.get("identityPublicKey").textValue());
|
|
JWSObject clientJwt = JWSObject.parse(clientData);
|
|
EncryptionUtils.verifyJwt(clientJwt, identityPublicKey);
|
|
|
|
JsonNode clientDataJson = JSON_MAPPER.readTree(clientJwt.getPayload().toBytes());
|
|
BedrockClientData data = JSON_MAPPER.convertValue(clientDataJson, BedrockClientData.class);
|
|
session.setClientData(data);
|
|
|
|
if (EncryptionUtils.canUseEncryption()) {
|
|
try {
|
|
LoginEncryptionUtils.startEncryptionHandshake(session, identityPublicKey);
|
|
} catch (Throwable e) {
|
|
// An error can be thrown on older Java 8 versions about an invalid key
|
|
if (connector.getConfig().isDebugMode()) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
sendEncryptionFailedMessage(connector);
|
|
}
|
|
} else {
|
|
sendEncryptionFailedMessage(connector);
|
|
}
|
|
} catch (Exception ex) {
|
|
session.disconnect("disconnectionScreen.internalError.cantConnect");
|
|
throw new RuntimeException("Unable to complete login", ex);
|
|
}
|
|
}
|
|
|
|
private static void startEncryptionHandshake(GeyserSession session, PublicKey key) throws Exception {
|
|
KeyPairGenerator generator = KeyPairGenerator.getInstance("EC");
|
|
generator.initialize(new ECGenParameterSpec("secp384r1"));
|
|
KeyPair serverKeyPair = generator.generateKeyPair();
|
|
|
|
byte[] token = EncryptionUtils.generateRandomToken();
|
|
SecretKey encryptionKey = EncryptionUtils.getSecretKey(serverKeyPair.getPrivate(), key, token);
|
|
session.getUpstream().getSession().enableEncryption(encryptionKey);
|
|
|
|
ServerToClientHandshakePacket packet = new ServerToClientHandshakePacket();
|
|
packet.setJwt(EncryptionUtils.createHandshakeJwt(serverKeyPair, token).serialize());
|
|
session.sendUpstreamPacketImmediately(packet);
|
|
}
|
|
|
|
private static void sendEncryptionFailedMessage(GeyserConnector connector) {
|
|
if (!HAS_SENT_ENCRYPTION_MESSAGE) {
|
|
connector.getLogger().warning(LanguageUtils.getLocaleStringLog("geyser.network.encryption.line_1"));
|
|
connector.getLogger().warning(LanguageUtils.getLocaleStringLog("geyser.network.encryption.line_2", "https://geysermc.org/supported_java"));
|
|
HAS_SENT_ENCRYPTION_MESSAGE = true;
|
|
}
|
|
}
|
|
|
|
public static void buildAndShowLoginWindow(GeyserSession session) {
|
|
// Set DoDaylightCycle to false so the time doesn't accelerate while we're here
|
|
session.setDaylightCycle(false);
|
|
|
|
GeyserConfiguration config = session.getConnector().getConfig();
|
|
boolean isPasswordAuthEnabled = config.getRemote().isPasswordAuthentication();
|
|
|
|
session.sendForm(
|
|
SimpleForm.builder()
|
|
.translator(LanguageUtils::getPlayerLocaleString, session.getLocale())
|
|
.title("geyser.auth.login.form.notice.title")
|
|
.content("geyser.auth.login.form.notice.desc")
|
|
.optionalButton("geyser.auth.login.form.notice.btn_login.mojang", isPasswordAuthEnabled)
|
|
.button("geyser.auth.login.form.notice.btn_login.microsoft")
|
|
.button("geyser.auth.login.form.notice.btn_disconnect")
|
|
.responseHandler((form, responseData) -> {
|
|
SimpleFormResponse response = form.parseResponse(responseData);
|
|
if (!response.isCorrect()) {
|
|
buildAndShowLoginWindow(session);
|
|
return;
|
|
}
|
|
|
|
if (isPasswordAuthEnabled && response.getClickedButtonId() == 0) {
|
|
session.setMicrosoftAccount(false);
|
|
buildAndShowLoginDetailsWindow(session);
|
|
return;
|
|
}
|
|
|
|
if (isPasswordAuthEnabled && response.getClickedButtonId() == 1) {
|
|
session.setMicrosoftAccount(true);
|
|
buildAndShowMicrosoftAuthenticationWindow(session);
|
|
return;
|
|
}
|
|
|
|
if (response.getClickedButtonId() == 0) {
|
|
// Just show the OAuth code
|
|
session.authenticateWithMicrosoftCode();
|
|
return;
|
|
}
|
|
|
|
session.disconnect(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.disconnect", session.getLocale()));
|
|
}));
|
|
}
|
|
|
|
public static void buildAndShowLoginDetailsWindow(GeyserSession session) {
|
|
session.sendForm(
|
|
CustomForm.builder()
|
|
.translator(LanguageUtils::getPlayerLocaleString, session.getLocale())
|
|
.title("geyser.auth.login.form.details.title")
|
|
.label("geyser.auth.login.form.details.desc")
|
|
.input("geyser.auth.login.form.details.email", "account@geysermc.org", "")
|
|
.input("geyser.auth.login.form.details.pass", "123456", "")
|
|
.responseHandler((form, responseData) -> {
|
|
CustomFormResponse response = form.parseResponse(responseData);
|
|
if (!response.isCorrect()) {
|
|
buildAndShowLoginDetailsWindow(session);
|
|
return;
|
|
}
|
|
|
|
session.authenticate(response.next(), response.next());
|
|
}));
|
|
}
|
|
|
|
/**
|
|
* Prompts the user between either OAuth code login or manual password authentication
|
|
*/
|
|
public static void buildAndShowMicrosoftAuthenticationWindow(GeyserSession session) {
|
|
session.sendForm(
|
|
SimpleForm.builder()
|
|
.translator(LanguageUtils::getPlayerLocaleString, session.getLocale())
|
|
.title("geyser.auth.login.form.notice.btn_login.microsoft")
|
|
.button("geyser.auth.login.method.browser")
|
|
.button("geyser.auth.login.method.password")
|
|
.button("geyser.auth.login.form.notice.btn_disconnect")
|
|
.responseHandler((form, responseData) -> {
|
|
SimpleFormResponse response = form.parseResponse(responseData);
|
|
if (!response.isCorrect()) {
|
|
buildAndShowLoginWindow(session);
|
|
return;
|
|
}
|
|
|
|
if (response.getClickedButtonId() == 0) {
|
|
session.authenticateWithMicrosoftCode();
|
|
} else if (response.getClickedButtonId() == 1) {
|
|
buildAndShowLoginDetailsWindow(session);
|
|
} else {
|
|
session.disconnect(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.disconnect", session.getLocale()));
|
|
}
|
|
}));
|
|
}
|
|
|
|
/**
|
|
* Shows the code that a user must input into their browser
|
|
*/
|
|
public static void buildAndShowMicrosoftCodeWindow(GeyserSession session, MsaAuthenticationService.MsCodeResponse msCode) {
|
|
session.sendForm(
|
|
ModalForm.builder()
|
|
.title("%xbox.signin")
|
|
.content("%xbox.signin.website\n%xbox.signin.url\n%xbox.signin.enterCode\n" + msCode.user_code)
|
|
.button1("%gui.done")
|
|
.button2("%menu.disconnect")
|
|
.responseHandler((form, responseData) -> {
|
|
ModalFormResponse response = form.parseResponse(responseData);
|
|
if (!response.isCorrect()) {
|
|
buildAndShowMicrosoftAuthenticationWindow(session);
|
|
return;
|
|
}
|
|
|
|
if (response.getClickedButtonId() == 1) {
|
|
session.disconnect(LanguageUtils.getPlayerLocaleString("geyser.auth.login.form.disconnect", session.getLocale()));
|
|
}
|
|
})
|
|
);
|
|
}
|
|
}
|