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Fix TheAltening authentication #6486

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Fix TheAltening authentication #6486

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867f0e0
Fix TheAltening authentication
8KV Jun 20, 2026
a2e15c9
Update authentication request to use a Meteor related password
8KV Jun 26, 2026
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53 changes: 31 additions & 22 deletions src/main/java/meteordevelopment/meteorclient/systems/accounts/types/TheAlteningAccount.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,26 +7,26 @@

import com.mojang.authlib.Environment;
import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
import de.florianreuth.waybackauthlib.InvalidCredentialsException;
import de.florianreuth.waybackauthlib.WaybackAuthLib;
import meteordevelopment.meteorclient.MeteorClient;
import meteordevelopment.meteorclient.systems.accounts.Account;
import meteordevelopment.meteorclient.systems.accounts.AccountType;
import meteordevelopment.meteorclient.systems.accounts.TokenAccount;
import meteordevelopment.meteorclient.utils.misc.NbtException;
import meteordevelopment.meteorclient.utils.network.Http;
import com.mojang.util.UndashedUuid;
import net.minecraft.client.User;
import net.minecraft.nbt.CompoundTag;
import org.jetbrains.annotations.Nullable;

import java.util.Optional;
import java.util.UUID;

import static meteordevelopment.meteorclient.MeteorClient.mc;

public class TheAlteningAccount extends Account<TheAlteningAccount> implements TokenAccount {
private static final Environment ENVIRONMENT = new Environment("http://sessionserver.thealtening.com", "http://authserver.thealtening.com", "https://api.mojang.com", "The Altening");
private static final YggdrasilAuthenticationService SERVICE = new YggdrasilAuthenticationService(mc.getProxy(), ENVIRONMENT);
private String token;
private @Nullable WaybackAuthLib auth;
private String accessToken;

public TheAlteningAccount(String token) {
super(AccountType.TheAltening, token);
Expand All @@ -35,19 +35,19 @@ public TheAlteningAccount(String token) {

@Override
public boolean fetchInfo() {
auth = getAuth();

try {
auth.logIn();

cache.username = auth.getCurrentProfile().name();
cache.uuid = auth.getCurrentProfile().id().toString();
AuthResponse res = authenticate();
if (res == null || res.accessToken == null || res.selectedProfile == null) {
MeteorClient.LOG.error("Invalid TheAltening credentials.");
return false;
}

accessToken = res.accessToken;
cache.username = res.selectedProfile.name;
cache.uuid = res.selectedProfile.id;
cache.loadHead();

return true;
} catch (InvalidCredentialsException _) {
MeteorClient.LOG.error("Invalid TheAltening credentials.");
return false;
} catch (Exception _) {
MeteorClient.LOG.error("Failed to fetch info for TheAltening account!");
return false;
Expand All @@ -56,25 +56,22 @@ public boolean fetchInfo() {

@Override
public boolean login() {
if (auth == null) return false;
if (accessToken == null || cache.username.isEmpty() || cache.uuid.isEmpty()) return false;
applyLoginEnvironment(SERVICE);

try {
setSession(new User(auth.getCurrentProfile().name(), auth.getCurrentProfile().id(), auth.getAccessToken(), Optional.empty(), Optional.empty()));
setSession(new User(cache.username, UndashedUuid.fromStringLenient(cache.uuid), accessToken, Optional.empty(), Optional.empty()));
return true;
} catch (Exception _) {
MeteorClient.LOG.error("Failed to login with TheAltening.");
return false;
}
}

private WaybackAuthLib getAuth() {
WaybackAuthLib auth = new WaybackAuthLib(ENVIRONMENT.servicesHost());

auth.setUsername(name);
auth.setPassword("Meteor on Crack!");

return auth;
private AuthResponse authenticate() {
return Http.post(ENVIRONMENT.servicesHost() + "/authenticate")
.bodyJson(new AuthRequest("MINECRAFT", token, "Meteor on Crack!", UUID.randomUUID().toString(), true))
.sendJson(AuthResponse.class);
}

@Override
Expand Down Expand Up @@ -105,4 +102,16 @@ public TheAlteningAccount fromTag(CompoundTag tag) {

return this;
}

private record AuthRequest(String agent, String username, String password, String clientToken, boolean requestUser) {}

private static class AuthResponse {
public String accessToken;
public AuthProfile selectedProfile;
}

private static class AuthProfile {
public String id;
public String name;
}
}