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Add Dispatch Password authentication

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AnimeGitB 2022-07-13 12:03:57 +09:30 committed by Luke H-W
parent 42e3af4e39
commit bc2c5deb48
12 changed files with 503 additions and 124 deletions
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21
src/main/java/emu/grasscutter/auth/DefaultAuthentication.java
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@ -6,6 +6,7 @@ import emu.grasscutter.game.Account;
import emu.grasscutter.server.http.objects.ComboTokenResJson;
import emu.grasscutter.server.http.objects.LoginResultJson;
import static emu.grasscutter.Configuration.ACCOUNT;
import static emu.grasscutter.utils.Language.translate;
/**
@ -13,12 +14,20 @@ import static emu.grasscutter.utils.Language.translate;
* Allows all users to access any account.
*/
public final class DefaultAuthentication implements AuthenticationSystem {
private final Authenticator<LoginResultJson> passwordAuthenticator = new PasswordAuthenticator();
private final Authenticator<LoginResultJson> tokenAuthenticator = new TokenAuthenticator();
private final Authenticator<ComboTokenResJson> sessionKeyAuthenticator = new SessionKeyAuthenticator();
private final ExternalAuthenticator externalAuthenticator = new ExternalAuthentication();
private final OAuthAuthenticator oAuthAuthenticator = new OAuthAuthentication();
private Authenticator<LoginResultJson> passwordAuthenticator;
private Authenticator<LoginResultJson> tokenAuthenticator = new TokenAuthenticator();
private Authenticator<ComboTokenResJson> sessionKeyAuthenticator = new SessionKeyAuthenticator();
private ExternalAuthenticator externalAuthenticator = new ExternalAuthentication();
private OAuthAuthenticator oAuthAuthenticator = new OAuthAuthentication();
public DefaultAuthentication() {
if(ACCOUNT.EXPERIMENTAL_RealPassword) {
passwordAuthenticator = new ExperimentalPasswordAuthenticator();
} else {
passwordAuthenticator = new PasswordAuthenticator();
}
}
@Override
public void createAccount(String username, String password) {
// Unhandled. The default authenticator doesn't store passwords.

180
src/main/java/emu/grasscutter/auth/DefaultAuthenticators.java
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@ -1,10 +1,19 @@
package emu.grasscutter.auth;
import at.favre.lib.crypto.bcrypt.BCrypt;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.auth.AuthenticationSystem.AuthenticationRequest;
import emu.grasscutter.database.DatabaseHelper;
import emu.grasscutter.game.Account;
import emu.grasscutter.server.http.objects.*;
import emu.grasscutter.utils.FileUtils;
import emu.grasscutter.utils.Utils;
import javax.crypto.Cipher;
import java.nio.charset.StandardCharsets;
import java.security.KeyFactory;
import java.security.interfaces.RSAPrivateKey;
import java.security.spec.PKCS8EncodedKeySpec;
import static emu.grasscutter.Configuration.*;
import static emu.grasscutter.utils.Language.translate;
@ -13,19 +22,20 @@ import static emu.grasscutter.utils.Language.translate;
* A class containing default authenticators.
*/
public final class DefaultAuthenticators {
/**
* Handles the authentication request from the username and password form.
*/
public static class PasswordAuthenticator implements Authenticator<LoginResultJson> {
@Override public LoginResultJson authenticate(AuthenticationRequest request) {
@Override
public LoginResultJson authenticate(AuthenticationRequest request) {
var response = new LoginResultJson();
var requestData = request.getPasswordRequest();
assert requestData != null; // This should never be null.
int playerCount = Grasscutter.getGameServer().getPlayers().size();
boolean successfulLogin = false;
boolean successfulLogin = false;
String address = request.getRequest().ip();
String responseMessage = translate("messages.dispatch.account.username_error");
String loggerMessage = "";
@ -34,12 +44,12 @@ public final class DefaultAuthenticators {
Account account = DatabaseHelper.getAccountByName(requestData.account);
if (ACCOUNT.maxPlayer <= -1 || playerCount < ACCOUNT.maxPlayer) {
// Check if account exists.
if(account == null && ACCOUNT.autoCreate) {
if (account == null && ACCOUNT.autoCreate) {
// This account has been created AUTOMATICALLY. There will be no permissions added.
account = DatabaseHelper.createAccountWithUid(requestData.account, 0);
// Check if the account was created successfully.
if(account == null) {
if (account == null) {
responseMessage = translate("messages.dispatch.account.username_create_error");
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_error", address));
} else {
@ -49,9 +59,9 @@ public final class DefaultAuthenticators {
// Log the creation.
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_success", address, response.data.account.uid));
}
} else if(account != null)
} else if (account != null)
successfulLogin = true;
else
else
loggerMessage = translate("messages.dispatch.account.account_login_exist_error", address);
} else {
@ -59,9 +69,120 @@ public final class DefaultAuthenticators {
loggerMessage = translate("messages.dispatch.account.login_max_player_limit", address);
}
// Set response data.
if(successfulLogin) {
if (successfulLogin) {
response.message = "OK";
response.data.account.uid = account.getId();
response.data.account.token = account.generateSessionKey();
response.data.account.email = account.getEmail();
loggerMessage = translate("messages.dispatch.account.login_success", address, account.getId());
} else {
response.retcode = -201;
response.message = responseMessage;
}
Grasscutter.getLogger().info(loggerMessage);
return response;
}
}
public static class ExperimentalPasswordAuthenticator implements Authenticator<LoginResultJson> {
@Override
public LoginResultJson authenticate(AuthenticationRequest request) {
var response = new LoginResultJson();
var requestData = request.getPasswordRequest();
assert requestData != null; // This should never be null.
int playerCount = Grasscutter.getGameServer().getPlayers().size();
boolean successfulLogin = false;
String address = request.getRequest().ip();
String responseMessage = translate("messages.dispatch.account.username_error");
String loggerMessage = "";
String decryptedPassword = "";
// Get Password
if (GAME_OPTIONS.uaPatchCompatible) {
// Make sure your patch can send passwords in plain text
decryptedPassword = request.getPasswordRequest().password;
} else {
try {
byte[] key = FileUtils.readResource("/keys/auth_private-key.der");
PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(key);
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
RSAPrivateKey private_key = (RSAPrivateKey) keyFactory.generatePrivate(keySpec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.DECRYPT_MODE, private_key);
decryptedPassword = new String(cipher.doFinal(Utils.base64Decode(request.getPasswordRequest().password)), StandardCharsets.UTF_8);
} catch (Exception ignored) {
ignored.printStackTrace();
}
}
if (decryptedPassword == null) {
successfulLogin = false;
loggerMessage = translate("messages.dispatch.account.login_password_error", address);
responseMessage = translate("messages.dispatch.account.password_error");
}
// Get account from database.
Account account = DatabaseHelper.getAccountByName(requestData.account);
if (ACCOUNT.maxPlayer <= -1 || playerCount < ACCOUNT.maxPlayer) {
// Check if account exists.
if (account == null && ACCOUNT.autoCreate) {
// This account has been created AUTOMATICALLY. There will be no permissions added.
if (decryptedPassword.length() >= 8) {
account = DatabaseHelper.createAccountWithUid(requestData.account, 0);
account.setPassword(BCrypt.withDefaults().hashToString(12, decryptedPassword.toCharArray()));
account.save();
// Check if the account was created successfully.
if (account == null) {
responseMessage = translate("messages.dispatch.account.username_create_error");
loggerMessage = translate("messages.dispatch.account.account_login_create_error", address);
} else {
// Continue with login.
successfulLogin = true;
// Log the creation.
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_success", address, response.data.account.uid));
}
} else {
successfulLogin = false;
loggerMessage = translate("messages.dispatch.account.login_password_error", address);
responseMessage = translate("messages.dispatch.account.password_length_error");
}
} else if (account != null) {
if (account.getPassword() != null && !account.getPassword().isEmpty()) {
if (BCrypt.verifyer().verify(decryptedPassword.toCharArray(), account.getPassword()).verified) {
successfulLogin = true;
} else {
successfulLogin = false;
loggerMessage = translate("messages.dispatch.account.login_password_error", address);
responseMessage = translate("messages.dispatch.account.password_error");
}
} else {
successfulLogin = false;
loggerMessage = translate("messages.dispatch.account.login_password_storage_error", address);
responseMessage = translate("password_storage_error");
}
} else {
loggerMessage = translate("messages.dispatch.account.account_login_exist_error", address);
}
} else {
responseMessage = translate("messages.dispatch.account.server_max_player_limit");
loggerMessage = translate("messages.dispatch.account.login_max_player_limit", address);
}
// Set response data.
if (successfulLogin) {
response.message = "OK";
response.data.account.uid = account.getId();
response.data.account.token = account.generateSessionKey();
@ -83,9 +204,10 @@ public final class DefaultAuthenticators {
* Handles the authentication request from the game when using a registry token.
*/
public static class TokenAuthenticator implements Authenticator<LoginResultJson> {
@Override public LoginResultJson authenticate(AuthenticationRequest request) {
@Override
public LoginResultJson authenticate(AuthenticationRequest request) {
var response = new LoginResultJson();
var requestData = request.getTokenRequest();
assert requestData != null;
@ -106,7 +228,7 @@ public final class DefaultAuthenticators {
successfulLogin = account != null && account.getSessionKey().equals(requestData.token);
// Set response data.
if(successfulLogin) {
if (successfulLogin) {
response.message = "OK";
response.data.account.uid = account.getId();
response.data.account.token = account.getSessionKey();
@ -138,13 +260,15 @@ public final class DefaultAuthenticators {
* Handles the authentication request from the game when using a combo token/session key.
*/
public static class SessionKeyAuthenticator implements Authenticator<ComboTokenResJson> {
@Override public ComboTokenResJson authenticate(AuthenticationRequest request) {
var response = new ComboTokenResJson();
@Override
public ComboTokenResJson authenticate(AuthenticationRequest request) {
var response = new ComboTokenResJson();
var requestData = request.getSessionKeyRequest();
var loginData = request.getSessionKeyData();
assert requestData != null; assert loginData != null;
assert requestData != null;
assert loginData != null;
boolean successfulLogin;
String address = request.getRequest().ip();
String loggerMessage;
@ -158,7 +282,7 @@ public final class DefaultAuthenticators {
successfulLogin = account != null && account.getSessionKey().equals(loginData.token);
// Set response data.
if(successfulLogin) {
if (successfulLogin) {
response.message = "OK";
response.data.open_id = account.getId();
response.data.combo_id = "157795300";
@ -190,17 +314,20 @@ public final class DefaultAuthenticators {
* Handles authentication requests from external sources.
*/
public static class ExternalAuthentication implements ExternalAuthenticator {
@Override public void handleLogin(AuthenticationRequest request) {
@Override
public void handleLogin(AuthenticationRequest request) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}
@Override public void handleAccountCreation(AuthenticationRequest request) {
@Override
public void handleAccountCreation(AuthenticationRequest request) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}
@Override public void handlePasswordReset(AuthenticationRequest request) {
@Override
public void handlePasswordReset(AuthenticationRequest request) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}
@ -210,17 +337,20 @@ public final class DefaultAuthenticators {
* Handles authentication requests from OAuth sources.
*/
public static class OAuthAuthentication implements OAuthAuthenticator {
@Override public void handleLogin(AuthenticationRequest request) {
@Override
public void handleLogin(AuthenticationRequest request) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}
@Override public void handleRedirection(AuthenticationRequest request, ClientType type) {
@Override
public void handleRedirection(AuthenticationRequest request, ClientType type) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}
@Override public void handleTokenProcess(AuthenticationRequest request) {
@Override
public void handleTokenProcess(AuthenticationRequest request) {
assert request.getResponse() != null;
request.getResponse().send("Authentication is not available with the default authentication method.");
}

73
src/main/java/emu/grasscutter/command/commands/AccountCommand.java
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@ -1,5 +1,7 @@
package emu.grasscutter.command.commands;
import at.favre.lib.crypto.bcrypt.BCrypt;
import emu.grasscutter.Configuration;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.command.Command;
import emu.grasscutter.command.CommandHandler;
@ -11,7 +13,7 @@ import java.util.List;
import static emu.grasscutter.utils.Language.translate;
@Command(label = "account", usage = "account <create|delete> <username> [uid]", description = "commands.account.description", targetRequirement = Command.TargetRequirement.NONE)
@Command(label = "account", usage = "account <create|delete|resetpass> <username> [uid|password] [uid] ", description = "commands.account.description", targetRequirement = Command.TargetRequirement.NONE)
public final class AccountCommand implements CommandHandler {
@Override
@ -35,13 +37,38 @@ public final class AccountCommand implements CommandHandler {
return;
case "create":
int uid = 0;
if (args.size() > 2) {
try {
uid = Integer.parseInt(args.get(2));
} catch (NumberFormatException ignored) {
CommandHandler.sendMessage(null, translate(sender, "commands.account.invalid"));
String password = "";
if(Configuration.ACCOUNT.EXPERIMENTAL_RealPassword == true) {
if(args.size() < 3) {
CommandHandler.sendMessage(null, "EXPERIMENTAL_RealPassword requires a password argument");
CommandHandler.sendMessage(null, "Usage: account create <username> <password> [uid]");
return;
}
password = args.get(2);
if (args.size() == 4) {
try {
uid = Integer.parseInt(args.get(3));
} catch (NumberFormatException ignored) {
CommandHandler.sendMessage(null, translate(sender, "commands.account.invalid"));
if(Configuration.ACCOUNT.EXPERIMENTAL_RealPassword == true) {
CommandHandler.sendMessage(null, "EXPERIMENTAL_RealPassword requires argument 2 to be a password, not a uid");
CommandHandler.sendMessage(null, "Usage: account create <username> <password> [uid]");
}
return;
}
}
} else {
if (args.size() > 2) {
try {
uid = Integer.parseInt(args.get(2));
} catch (NumberFormatException ignored) {
CommandHandler.sendMessage(null, translate(sender, "commands.account.invalid"));
return;
}
}
}
emu.grasscutter.game.Account account = DatabaseHelper.createAccountWithUid(username, uid);
@ -49,6 +76,9 @@ public final class AccountCommand implements CommandHandler {
CommandHandler.sendMessage(null, translate(sender, "commands.account.exists"));
return;
} else {
if(Configuration.ACCOUNT.EXPERIMENTAL_RealPassword == true) {
account.setPassword(BCrypt.withDefaults().hashToString(12, password.toCharArray()));
}
account.addPermission("*");
account.save(); // Save account to database.
@ -74,6 +104,37 @@ public final class AccountCommand implements CommandHandler {
// Finally, we do the actual deletion.
DatabaseHelper.deleteAccount(toDelete);
CommandHandler.sendMessage(null, translate(sender, "commands.account.delete"));
return;
case "resetpass":
if(Configuration.ACCOUNT.EXPERIMENTAL_RealPassword != true) {
CommandHandler.sendMessage(null, "resetpass requires EXPERIMENTAL_RealPassword to be true.");
return;
}
if(args.size() != 3) {
CommandHandler.sendMessage(null, "Invalid Args");
CommandHandler.sendMessage(null, "Usage: account resetpass <username> <password>");
return;
}
Account toUpdate = DatabaseHelper.getAccountByName(username);
if (toUpdate == null) {
CommandHandler.sendMessage(null, translate(sender, "commands.account.no_account"));
return;
}
// Get the player for the account.
// If that player is currently online, we kick them before proceeding with the deletion.
Player uPlayer = Grasscutter.getGameServer().getPlayerByAccountId(toUpdate.getId());
if (uPlayer != null) {
uPlayer.getSession().close();
}
toUpdate.setPassword(BCrypt.withDefaults().hashToString(12, args.get(2).toCharArray()));
toUpdate.save();
CommandHandler.sendMessage(null, "Password Updated.");
return;
}
}
}

7
src/main/java/emu/grasscutter/server/http/HttpServer.java
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@ -11,7 +11,7 @@ import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import static emu.grasscutter.Configuration.*;
import static emu.grasscutter.utils.Language.translate;
@ -126,15 +126,16 @@ public final class HttpServer {
/**
* Starts listening on the HTTP server.
* @throws UnsupportedEncodingException
*/
public void start() {
public void start() throws UnsupportedEncodingException {
// Attempt to start the HTTP server.
if(HTTP_INFO.bindAddress.equals("")){
this.express.listen(HTTP_INFO.bindPort);
}else{
this.express.listen(HTTP_INFO.bindAddress, HTTP_INFO.bindPort);
}
// Log bind information.
Grasscutter.getLogger().info(translate("messages.dispatch.port_bind", Integer.toString(this.express.raw().port())));
}

117
src/main/java/emu/grasscutter/server/http/dispatch/RegionHandler.java
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@ -1,33 +1,31 @@
package emu.grasscutter.server.http.dispatch;
import com.google.protobuf.ByteString;
import com.google.protobuf.InvalidProtocolBufferException;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.Grasscutter.ServerRunMode;
import emu.grasscutter.net.proto.QueryCurrRegionHttpRspOuterClass.*;
import emu.grasscutter.net.proto.RegionInfoOuterClass;
import emu.grasscutter.net.proto.QueryCurrRegionHttpRspOuterClass.QueryCurrRegionHttpRsp;
import emu.grasscutter.net.proto.RegionInfoOuterClass.RegionInfo;
import emu.grasscutter.net.proto.RegionSimpleInfoOuterClass.RegionSimpleInfo;
import emu.grasscutter.server.event.dispatch.QueryAllRegionsEvent;
import emu.grasscutter.server.event.dispatch.QueryCurrentRegionEvent;
import emu.grasscutter.server.http.Router;
import emu.grasscutter.server.http.objects.QueryCurRegionRspJson;
import emu.grasscutter.utils.Crypto;
import emu.grasscutter.utils.FileUtils;
import emu.grasscutter.utils.Utils;
import express.Express;
import express.http.Request;
import express.http.Response;
import io.javalin.Javalin;
import java.io.File;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import java.util.Map;
import javax.crypto.Cipher;
import java.io.ByteArrayOutputStream;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.security.Signature;
import static emu.grasscutter.Configuration.*;
import static emu.grasscutter.net.proto.QueryRegionListHttpRspOuterClass.*;
import static emu.grasscutter.net.proto.QueryRegionListHttpRspOuterClass.QueryRegionListHttpRsp;
/**
* Handles requests related to region queries.
@ -35,7 +33,7 @@ import static emu.grasscutter.net.proto.QueryRegionListHttpRspOuterClass.*;
public final class RegionHandler implements Router {
private static final Map<String, RegionData> regions = new ConcurrentHashMap<>();
private static String regionListResponse;
public RegionHandler() {
try { // Read & initialize region data.
this.initialize();
@ -51,33 +49,33 @@ public final class RegionHandler implements Router {
String dispatchDomain = "http" + (HTTP_ENCRYPTION.useInRouting ? "s" : "") + "://"
+ lr(HTTP_INFO.accessAddress, HTTP_INFO.bindAddress) + ":"
+ lr(HTTP_INFO.accessPort, HTTP_INFO.bindPort);
// Create regions.
List<RegionSimpleInfo> servers = new ArrayList<>();
List<String> usedNames = new ArrayList<>(); // List to check for potential naming conflicts.
var configuredRegions = new ArrayList<>(List.of(DISPATCH_INFO.regions));
if(SERVER.runMode != ServerRunMode.HYBRID && configuredRegions.size() == 0) {
Grasscutter.getLogger().error("[Dispatch] There are no game servers available. Exiting due to unplayable state.");
System.exit(1);
} else if (configuredRegions.size() == 0)
} else if (configuredRegions.size() == 0)
configuredRegions.add(new Region("os_usa", DISPATCH_INFO.defaultName,
lr(GAME_INFO.accessAddress, GAME_INFO.bindAddress),
lr(GAME_INFO.accessPort, GAME_INFO.bindPort)));
lr(GAME_INFO.accessAddress, GAME_INFO.bindAddress),
lr(GAME_INFO.accessPort, GAME_INFO.bindPort)));
configuredRegions.forEach(region -> {
if (usedNames.contains(region.Name)) {
Grasscutter.getLogger().error("Region name already in use.");
return;
}
// Create a region identifier.
var identifier = RegionSimpleInfo.newBuilder()
.setName(region.Name).setTitle(region.Title).setType("DEV_PUBLIC")
.setDispatchUrl(dispatchDomain + "/query_cur_region/" + region.Name)
.build();
usedNames.add(region.Name); servers.add(identifier);
// Create a region info object.
var regionInfo = RegionInfo.newBuilder()
.setGateserverIp(region.Ip).setGateserverPort(region.Port)
@ -87,22 +85,22 @@ public final class RegionHandler implements Router {
var updatedQuery = QueryCurrRegionHttpRsp.newBuilder().setRegionInfo(regionInfo).build();
regions.put(region.Name, new RegionData(updatedQuery, Utils.base64Encode(updatedQuery.toByteString().toByteArray())));
});
// Create a config object.
byte[] customConfig = "{\"sdkenv\":\"2\",\"checkdevice\":\"false\",\"loadPatch\":\"false\",\"showexception\":\"false\",\"regionConfig\":\"pm|fk|add\",\"downloadMode\":\"0\"}".getBytes();
Crypto.xor(customConfig, Crypto.DISPATCH_KEY); // XOR the config with the key.
// Create an updated region list.
QueryRegionListHttpRsp updatedRegionList = QueryRegionListHttpRsp.newBuilder()
.addAllRegionList(servers)
.setClientSecretKey(ByteString.copyFrom(Crypto.DISPATCH_SEED))
.setClientCustomConfigEncrypted(ByteString.copyFrom(customConfig))
.setEnableLoginPc(true).build();
// Set the region list response.
regionListResponse = Utils.base64Encode(updatedRegionList.toByteString().toByteArray());
}
@Override public void applyRoutes(Express express, Javalin handle) {
express.get("/query_region_list", RegionHandler::queryRegionList);
express.get("/query_cur_region/:region", RegionHandler::queryCurrentRegion );
@ -116,7 +114,7 @@ public final class RegionHandler implements Router {
QueryAllRegionsEvent event = new QueryAllRegionsEvent(regionListResponse); event.call();
// Respond with event result.
response.send(event.getRegionList());
// Log to console.
Grasscutter.getLogger().info(String.format("[Dispatch] Client %s request: query_region_list", request.ip()));
}
@ -127,19 +125,72 @@ public final class RegionHandler implements Router {
private static void queryCurrentRegion(Request request, Response response) {
// Get region to query.
String regionName = request.params("region");
String versionName = request.query("version");
var region = regions.get(regionName);
// Get region data.
String regionData = "CAESGE5vdCBGb3VuZCB2ZXJzaW9uIGNvbmZpZw==";
if (request.query().values().size() > 0) {
var region = regions.get(regionName);
if(region != null) regionData = region.getBase64();
if(region != null)
regionData = region.getBase64();
}
// Invoke event.
QueryCurrentRegionEvent event = new QueryCurrentRegionEvent(regionData); event.call();
// Respond with event result.
response.send(event.getRegionInfo());
if( versionName.contains("2.7.5") || versionName.contains("2.8.")) {
try {
QueryCurrentRegionEvent event = new QueryCurrentRegionEvent(regionData); event.call();
if (GAME_OPTIONS.uaPatchCompatible) {
// More love for UA Patch players
var rsp = new QueryCurRegionRspJson();
rsp.content = event.getRegionInfo();
rsp.sign = "TW9yZSBsb3ZlIGZvciBVQSBQYXRjaCBwbGF5ZXJz";
response.send(rsp);
return;
}
String key_id = request.query("key_id");
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, key_id.equals("3") ? Crypto.CUR_OS_ENCRYPT_KEY : Crypto.CUR_CN_ENCRYPT_KEY);
var regionInfo = Utils.base64Decode(event.getRegionInfo());
//Encrypt regionInfo in chunks
ByteArrayOutputStream encryptedRegionInfoStream = new ByteArrayOutputStream();
//Thank you so much GH Copilot
int chunkSize = 256 - 11;
int regionInfoLength = regionInfo.length;
int numChunks = (int) Math.ceil(regionInfoLength / (double) chunkSize);
for (int i = 0; i < numChunks; i++) {
byte[] chunk = Arrays.copyOfRange(regionInfo, i * chunkSize, Math.min((i + 1) * chunkSize, regionInfoLength));
byte[] encryptedChunk = cipher.doFinal(chunk);
encryptedRegionInfoStream.write(encryptedChunk);
}
Signature privateSignature = Signature.getInstance("SHA256withRSA");
privateSignature.initSign(Crypto.CUR_SIGNING_KEY);
privateSignature.update(regionInfo);
var rsp = new QueryCurRegionRspJson();
rsp.content = Utils.base64Encode(encryptedRegionInfoStream.toByteArray());
rsp.sign = Utils.base64Encode(privateSignature.sign());
response.send(rsp);
}
catch (Exception e) {
Grasscutter.getLogger().error("An error occurred while handling query_cur_region.", e);
}
}
else {
// Invoke event.
QueryCurrentRegionEvent event = new QueryCurrentRegionEvent(regionData); event.call();
// Respond with event result.
response.send(event.getRegionInfo());
}
// Log to console.
Grasscutter.getLogger().info(String.format("Client %s request: query_cur_region/%s", request.ip(), regionName));
}
@ -172,4 +223,4 @@ public final class RegionHandler implements Router {
public static QueryCurrRegionHttpRsp getCurrentRegion() {
return SERVER.runMode == ServerRunMode.HYBRID ? regions.get("os_usa").getRegionQuery() : null;
}
}
}

6
src/main/java/emu/grasscutter/server/http/objects/QueryCurRegionRspJson.java Normal file
View File

@ -0,0 +1,6 @@
package emu.grasscutter.server.http.objects;
public class QueryCurRegionRspJson {
public String content;
public String sign;
}

52
src/main/java/emu/grasscutter/server/packet/recv/HandlerGetPlayerTokenReq.java
View File

@ -1,6 +1,7 @@
package emu.grasscutter.server.packet.recv;
import static emu.grasscutter.Configuration.ACCOUNT;
import static emu.grasscutter.Configuration.GAME_OPTIONS;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.database.DatabaseHelper;
@ -14,6 +15,14 @@ import emu.grasscutter.server.event.game.PlayerCreationEvent;
import emu.grasscutter.server.game.GameSession;
import emu.grasscutter.server.game.GameSession.SessionState;
import emu.grasscutter.server.packet.send.PacketGetPlayerTokenRsp;
import emu.grasscutter.utils.ByteHelper;
import emu.grasscutter.utils.Crypto;
import emu.grasscutter.utils.Utils;
import javax.crypto.Cipher;
import java.nio.ByteBuffer;
import java.security.Signature;
@Opcodes(PacketOpcodes.GetPlayerTokenReq)
public class HandlerGetPlayerTokenReq extends PacketHandler {
@ -90,8 +99,45 @@ public class HandlerGetPlayerTokenReq extends PacketHandler {
session.setUseSecretKey(true);
session.setState(SessionState.WAITING_FOR_LOGIN);
// Send packet
session.send(new PacketGetPlayerTokenRsp(session));
}
// Only >= 2.7.50 has this
if (req.getKeyId() > 0) {
if (GAME_OPTIONS.uaPatchCompatible) {
// More love for ua patch plz 😭
byte[] clientBytes = Utils.base64Decode(req.getClientSeed());
byte[] seed = ByteHelper.longToBytes(Crypto.ENCRYPT_SEED);
Crypto.xor(clientBytes, seed);
String base64str = Utils.base64Encode(clientBytes);
session.send(new PacketGetPlayerTokenRsp(session, base64str, "bm90aGluZyBoZXJl"));
return;
}
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.DECRYPT_MODE, Crypto.CUR_SIGNING_KEY);
var client_seed_encrypted = Utils.base64Decode(req.getClientSeed());
var client_seed = ByteBuffer.wrap(cipher.doFinal(client_seed_encrypted))
.getLong();
byte[] seed_bytes = ByteBuffer.wrap(new byte[8])
.putLong(Crypto.ENCRYPT_SEED ^ client_seed)
.array();
//Kind of a hack, but whatever
cipher.init(Cipher.ENCRYPT_MODE, req.getKeyId() == 3 ? Crypto.CUR_OS_ENCRYPT_KEY : Crypto.CUR_CN_ENCRYPT_KEY);
var seed_encrypted = cipher.doFinal(seed_bytes);
Signature privateSignature = Signature.getInstance("SHA256withRSA");
privateSignature.initSign(Crypto.CUR_SIGNING_KEY);
privateSignature.update(seed_bytes);
session.send(new PacketGetPlayerTokenRsp(session, Utils.base64Encode(seed_encrypted), Utils.base64Encode(privateSignature.sign())));
}
else {
// Send packet
session.send(new PacketGetPlayerTokenRsp(session));
}
}
}

105
src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerTokenRsp.java
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@ -10,45 +10,70 @@ import emu.grasscutter.utils.Crypto;
public class PacketGetPlayerTokenRsp extends BasePacket {
public PacketGetPlayerTokenRsp(GameSession session) {
super(PacketOpcodes.GetPlayerTokenRsp, true);
this.setUseDispatchKey(true);
public PacketGetPlayerTokenRsp(GameSession session) {
super(PacketOpcodes.GetPlayerTokenRsp, true);
GetPlayerTokenRsp p = GetPlayerTokenRsp.newBuilder()
.setUid(session.getPlayer().getUid())
.setToken(session.getAccount().getToken())
.setAccountType(1)
.setIsProficientPlayer(session.getPlayer().getAvatars().getAvatarCount() > 0) // Not sure where this goes
.setSecretKeySeed(Crypto.ENCRYPT_SEED)
.setSecurityCmdBuffer(ByteString.copyFrom(Crypto.ENCRYPT_SEED_BUFFER))
.setPlatformType(3)
.setChannelId(1)
.setCountryCode("US")
.setClientVersionRandomKey("c25-314dd05b0b5f")
.setRegPlatform(3)
.setClientIpStr(session.getAddress().getAddress().getHostAddress())
.build();
this.setData(p.toByteArray());
}
public PacketGetPlayerTokenRsp(GameSession session, int retcode, String msg, int blackEndTime) {
super(PacketOpcodes.GetPlayerTokenRsp, true);
this.setUseDispatchKey(true);
GetPlayerTokenRsp p = GetPlayerTokenRsp.newBuilder()
.setUid(session.getPlayer().getUid())
.setIsProficientPlayer(session.getPlayer().getAvatars().getAvatarCount() > 0)
.setRetcode(retcode)
.setMsg(msg)
.setBlackUidEndTime(blackEndTime)
.setRegPlatform(3)
.setCountryCode("US")
.setClientIpStr(session.getAddress().getAddress().getHostAddress())
.build();
this.setData(p.toByteArray());
}
this.setUseDispatchKey(true);
GetPlayerTokenRsp p = GetPlayerTokenRsp.newBuilder()
.setUid(session.getPlayer().getUid())
.setToken(session.getAccount().getToken())
.setAccountType(1)
.setIsProficientPlayer(session.getPlayer().getAvatars().getAvatarCount() > 0) // Not sure where this goes
.setSecretKeySeed(Crypto.ENCRYPT_SEED)
.setSecurityCmdBuffer(ByteString.copyFrom(Crypto.ENCRYPT_SEED_BUFFER))
.setPlatformType(3)
.setChannelId(1)
.setCountryCode("US")
.setClientVersionRandomKey("c25-314dd05b0b5f")
.setRegPlatform(3)
.setClientIpStr(session.getAddress().getAddress().getHostAddress())
.build();
this.setData(p.toByteArray());
}
public PacketGetPlayerTokenRsp(GameSession session, int retcode, String msg, int blackEndTime) {
super(PacketOpcodes.GetPlayerTokenRsp, true);
this.setUseDispatchKey(true);
GetPlayerTokenRsp p = GetPlayerTokenRsp.newBuilder()
.setUid(session.getPlayer().getUid())
.setIsProficientPlayer(session.getPlayer().getAvatars().getAvatarCount() > 0)
.setRetcode(retcode)
.setMsg(msg)
.setBlackUidEndTime(blackEndTime)
.setRegPlatform(3)
.setCountryCode("US")
.setClientIpStr(session.getAddress().getAddress().getHostAddress())
.build();
this.setData(p.toByteArray());
}
public PacketGetPlayerTokenRsp(GameSession session, String encryptedSeed, String encryptedSeedSign) {
super(PacketOpcodes.GetPlayerTokenRsp, true);
this.setUseDispatchKey(true);
GetPlayerTokenRsp p = GetPlayerTokenRsp.newBuilder()
.setUid(session.getPlayer().getUid())
.setToken(session.getAccount().getToken())
.setAccountType(1)
.setIsProficientPlayer(session.getPlayer().getAvatars().getAvatarCount() > 0) // Not sure where this goes
.setSecretKeySeed(Crypto.ENCRYPT_SEED)
.setSecurityCmdBuffer(ByteString.copyFrom(Crypto.ENCRYPT_SEED_BUFFER))
.setPlatformType(3)
.setChannelId(1)
.setCountryCode("US")
.setClientVersionRandomKey("c25-314dd05b0b5f")
.setRegPlatform(3)
.setClientIpStr(session.getAddress().getAddress().getHostAddress())
.setEncryptedSeed(encryptedSeed)
.setSeedSignature(encryptedSeedSign)
.build();
this.setData(p.toByteArray());
}
}

24
src/main/java/emu/grasscutter/utils/ByteHelper.java Normal file
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@ -0,0 +1,24 @@
package emu.grasscutter.utils;
public class ByteHelper {
public static byte[] changeBytes(byte[] a) {
byte[] b = new byte[a.length];
for (int i = 0; i < a.length; i++) {
b[i] = a[a.length - i - 1];
}
return b;
}
public static byte[] longToBytes(long x) {
byte[] bytes = new byte[8];
bytes[0] = (byte) (x >> 56);
bytes[1] = (byte) (x >> 48);
bytes[2] = (byte) (x >> 40);
bytes[3] = (byte) (x >> 32);
bytes[4] = (byte) (x >> 24);
bytes[5] = (byte) (x >> 16);
bytes[6] = (byte) (x >> 8);
bytes[7] = (byte) (x);
return bytes;
}
}

2
src/main/java/emu/grasscutter/utils/ConfigContainer.java
View File

@ -112,6 +112,7 @@ public class ConfigContainer {
public static class Account {
public boolean autoCreate = false;
public boolean EXPERIMENTAL_RealPassword = false;
public String[] defaultPermissions = {};
public int maxPlayer = -1;
}
@ -210,6 +211,7 @@ public class ConfigContainer {
public int cap = 160;
public int rechargeTime = 480;
}
public boolean uaPatchCompatible = false;
}
public static class JoinOptions {

35
src/main/java/emu/grasscutter/utils/Crypto.java
View File

@ -1,13 +1,13 @@
package emu.grasscutter.utils;
import java.security.KeyFactory;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.util.Base64;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.net.proto.GetPlayerTokenRspOuterClass.GetPlayerTokenRsp;
import emu.grasscutter.net.proto.QueryCurrRegionHttpRspOuterClass.QueryCurrRegionHttpRsp;
import static emu.grasscutter.Configuration.*;
public final class Crypto {
private static final SecureRandom secureRandom = new SecureRandom();
@ -18,15 +18,34 @@ public final class Crypto {
public static byte[] ENCRYPT_KEY;
public static long ENCRYPT_SEED = Long.parseUnsignedLong("11468049314633205968");
public static byte[] ENCRYPT_SEED_BUFFER = new byte[0];
public static PublicKey CUR_OS_ENCRYPT_KEY;
public static PublicKey CUR_CN_ENCRYPT_KEY;
public static PrivateKey CUR_SIGNING_KEY;
public static void loadKeys() {
DISPATCH_KEY = FileUtils.readResource("/keys/dispatchKey.bin");
DISPATCH_SEED = FileUtils.readResource("/keys/dispatchSeed.bin");
ENCRYPT_KEY = FileUtils.readResource("/keys/secretKey.bin");
ENCRYPT_SEED_BUFFER = FileUtils.readResource("/keys/secretKeyBuffer.bin");
try {
//These should be loaded from ChannelConfig_whatever.json
CUR_SIGNING_KEY = KeyFactory.getInstance("RSA")
.generatePrivate(new PKCS8EncodedKeySpec(FileUtils.readResource("/keys/SigningKey.der")));
CUR_OS_ENCRYPT_KEY = KeyFactory.getInstance("RSA")
.generatePublic(new X509EncodedKeySpec(FileUtils.readResource("/keys/OSCB_Pub.der")));
CUR_CN_ENCRYPT_KEY = KeyFactory.getInstance("RSA")
.generatePublic(new X509EncodedKeySpec(FileUtils.readResource("/keys/OSCN_Pub.der")));
}
catch (Exception e) {
Grasscutter.getLogger().error("An error occurred while loading keys.", e);
}
}
public static void xor(byte[] packet, byte[] key) {
try {
for (int i = 0; i < packet.length; i++) {
@ -36,7 +55,7 @@ public final class Crypto {
Grasscutter.getLogger().error("Crypto error.", e);
}
}
public static byte[] createSessionKey(int length) {
byte[] bytes = new byte[length];
secureRandom.nextBytes(bytes);

5
src/main/resources/languages/en-US.json
View File

@ -28,6 +28,8 @@
"login_token_attempt": "[Dispatch] Client %s is trying to log in via token.",
"login_token_error": "[Dispatch] Client %s failed to log in via token.",
"login_token_success": "[Dispatch] Client %s logged in via token as %s.",
"login_password_error": "[Dispatch] Client %s failed to log in via password.",
"login_password_storage_error": "[Dispatch] Client %s failed to log in via password because there is no password in the database.",
"combo_token_success": "[Dispatch] Client %s succeed to exchange combo token.",
"combo_token_error": "[Dispatch] Client %s failed to exchange combo token.",
"account_login_create_success": "[Dispatch] Client %s failed to log in: Account %s created.",
@ -37,6 +39,9 @@
"session_key_error": "Wrong session key.",
"username_error": "Username not found.",
"username_create_error": "Username not found, create failed.",
"password_error": "Invalid Password",
"password_length_error": "Password length must be greater then or equal to 8",
"password_storage_error": "You don't have a password for your account. Please contact an administrator.",
"server_max_player_limit": "The number of online players has reached the limit"
},
"router_error": "[Dispatch] Unable to attach router."