Remove argon2id, use bcrypt-only password hashing

.env.example

@@ -28,12 +28,11 @@ AUTH_URL=http://localhost:3002
 IMAGING_UPSTREAM_URL=http://127.0.0.1:3030/imaging
 NEXT_PUBLIC_IMAGER_URL=http://localhost:3002/imaging
 
-# --- SECURITY & HASHING (High Performance) ---
+# --- SECURITY & HASHING ---
 AUTH_SECRET=your-super-secret-auth-key-change-this-min-32-chars
 APP_KEY=base64:your-app-key-here=
 CONVERT_PASSWORDS=true
-PASSWORD_HASH=argon2id
-BCRYPT_ROUNDS=10
+BCRYPT_ROUNDS=12
 
 # --- PATHS ---
 BADGE_UPLOAD_DIR=./public/assets/images/badges

.gitea/workflows/ci.yaml

@@ -34,8 +34,6 @@ jobs:
           export DATABASE_URL="mysql://test:test@localhost:3306/test?charset=utf8mb4"
           export AUTH_SECRET="ci-test-secret-key-that-is-long-enough"
           export REDIS_URL="redis://127.0.0.1:6379?connect_timeout=1"
-          export ARGON2_MEMORY_SIZE=1024
-          export ARGON2_ITERATIONS=1
           export BCRYPT_ROUNDS=4
           pnpm install --frozen-lockfile
           pnpm prisma:generate

.gitea/workflows/deploy.yaml

@@ -54,7 +54,7 @@ jobs:
             echo '<a id="what-is-epicnext-cms"></a>'
             echo "## What is EpicNext-CMS?"
             echo ""
-            echo "EpicNext-CMS is a full public-facing hotel website plus an administrative panel. It features NextAuth authentication (argon2id/bcrypt with MD5 upgrade), real-time RCON communication with the emulator, Server-Sent Events for live radio, smooth page transitions and extensive extensibility. Full documentation: https://gitlab.epicnabbo.nl/remco/EpicNext-Cms/src/branch/main/README.md"
+            echo "EpicNext-CMS is a full public-facing hotel website plus an administrative panel. It features NextAuth authentication (bcrypt with MD5 upgrade), real-time RCON communication with the emulator, Server-Sent Events for live radio, smooth page transitions and extensive extensibility. Full documentation: https://gitlab.epicnabbo.nl/remco/EpicNext-Cms/src/branch/main/README.md"
             echo ""
             echo '<a id="system-requirements"></a>'
             echo "## System Requirements"
@@ -314,7 +314,7 @@ jobs:
           pnpm install --frozen-lockfile
           # prisma generate does not need a live DB connection.
           pnpm prisma:generate
-          export ARGON2_MEMORY_SIZE=1024 ARGON2_ITERATIONS=1 BCRYPT_ROUNDS=4
+          export BCRYPT_ROUNDS=4
           pnpm typecheck
           pnpm test
           # Validate production env (AUTH_SECRET, DATABASE_URL, …) during build.

README.md

@@ -2,7 +2,7 @@
 
 A modern, high-performance content management system for Habbo hotel emulators, built on **Next.js 16** (App Router) with **Prisma 7** and **React 19**. Designed to integrate seamlessly with Polaris / Arcturus Morningstar MySQL/MariaDB databases.
 
-Features a premium animated homepage (typewriter hero, floating orbs, scroll counters), a full admin panel, NextAuth authentication (argon2id/bcrypt with MD5-to-argon2id upgrade), real-time RCON communication, Server-Sent Events for live radio data, smooth page transitions, and PM2 production deployment.
+Features a premium animated homepage (typewriter hero, floating orbs, scroll counters), a full admin panel, NextAuth authentication (bcrypt with MD5-to-bcrypt upgrade), real-time RCON communication, Server-Sent Events for live radio data, smooth page transitions, and PM2 production deployment.
 
 ---
 

src/env.ts

@@ -50,17 +50,11 @@ const schema = z
 		// Laravel APP_KEY (base64:...) — needed to read existing 2FA secrets.
 		APP_KEY: z.string().optional(),
 
-		// Mirrors Laravel config('habbo.site.convert_passwords') — enables md5->argon2id.
+		// Mirrors Laravel config('habbo.site.convert_passwords') — enables md5->bcrypt upgrade.
 		CONVERT_PASSWORDS: z
 			.string()
 			.optional()
 			.transform((v) => v === "true" || v === "1"),
-		// Hashing driver for NEW passwords: bcrypt (default, fits varchar(64)) | argon2id.
-		PASSWORD_HASH: z.enum(["bcrypt", "argon2id"]).optional(),
-		// Argon2id parameters (mirrors config/hashing.php).
-		ARGON2_PARALLELISM: z.coerce.number().int().positive().default(1),
-		ARGON2_ITERATIONS: z.coerce.number().int().positive().default(4),
-		ARGON2_MEMORY_SIZE: z.coerce.number().int().positive().default(65536),
 		// Bcrypt cost factor (rounds).
 		BCRYPT_ROUNDS: z.coerce.number().int().positive().default(12),
 		// Filesystem dir the badge uploader writes <code>.gif into (the emulator's

src/lib/auth.ts

@@ -96,7 +96,7 @@ export const { handlers, signOut, auth } = NextAuth({
 					return null;
 				}
 
-				// Byte-compatible AtomCMS check (argon2id/bcrypt + md5->argon2id upgrade).
+				// Byte-compatible AtomCMS check (bcrypt + md5->bcrypt upgrade).
 				const res = await checkLogin(password, user.password, {
 					convertPasswords: env.CONVERT_PASSWORDS,
 				});

src/lib/auth/password.test.ts

@@ -1,12 +1,6 @@
-import { randomBytes } from "node:crypto";
-import { argon2id } from "hash-wasm";
 import { describe, expect, it, vi } from "vitest";
 
 const mockEnv = vi.hoisted(() => ({
-	PASSWORD_HASH: undefined as string | undefined,
-	ARGON2_PARALLELISM: 1,
-	ARGON2_ITERATIONS: 4,
-	ARGON2_MEMORY_SIZE: 65536,
 	BCRYPT_ROUNDS: 12,
 }));
 
@@ -29,9 +23,8 @@ describe("md5Hex", () => {
 	});
 });
 
-describe("hashPassword (default driver: bcrypt)", () => {
+describe("hashPassword", () => {
 	it("emits a bcrypt hash and round-trips", async () => {
-		mockEnv.PASSWORD_HASH = undefined;
 		const h = await hashPassword("s3cret!");
 		expect(h).toMatch(/^\$2y\$\d{2}\$/);
 		expect(await verifyPassword("s3cret!", h)).toBe(true);
@@ -39,35 +32,8 @@ describe("hashPassword (default driver: bcrypt)", () => {
 	});
 });
 
-describe("hashPassword (PASSWORD_HASH=argon2id)", () => {
-	it("hashes with the AtomCMS params and round-trips", async () => {
-		mockEnv.PASSWORD_HASH = "argon2id";
-		mockEnv.ARGON2_MEMORY_SIZE = 1024;
-		mockEnv.ARGON2_ITERATIONS = 1;
-		const h = await hashPassword("s3cret!");
-		expect(h).toMatch(/^\$argon2id\$v=19\$m=1024,t=1,p=1\$/);
-		expect(await verifyPassword("s3cret!", h)).toBe(true);
-		expect(await verifyPassword("wrong", h)).toBe(false);
-	});
-});
-
 describe("verifyPassword", () => {
-	it("verifies argon2id hashes", async () => {
-		const h = await argon2id({
-			password: "hunter2",
-			salt: randomBytes(16),
-			outputType: "encoded",
-			parallelism: 1,
-			iterations: 4,
-			memorySize: 1024,
-			hashLength: 32,
-		});
-		expect(await verifyPassword("hunter2", h)).toBe(true);
-		expect(await verifyPassword("nope", h)).toBe(false);
-	});
-
 	it("verifies legacy bcrypt hashes ($2y$)", async () => {
-		mockEnv.PASSWORD_HASH = undefined;
 		const h = await hashPassword("hunter2");
 		expect(h).toMatch(/^\$2y\$/);
 		expect(await verifyPassword("hunter2", h)).toBe(true);
@@ -85,7 +51,6 @@ describe("isMd5Of", () => {
 
 describe("checkLogin", () => {
 	it("upgrades a legacy md5 hash to bcrypt when conversion is enabled", async () => {
-		mockEnv.PASSWORD_HASH = undefined;
 		const stored = await md5Hex("oldpass");
 		const res = await checkLogin("oldpass", stored, { convertPasswords: true });
 		expect(res.valid).toBe(true);
@@ -105,7 +70,6 @@ describe("checkLogin", () => {
 	});
 
 	it("validates an existing modern hash with no upgrade", async () => {
-		mockEnv.PASSWORD_HASH = undefined;
 		const stored = await hashPassword("modern");
 		const res = await checkLogin("modern", stored, { convertPasswords: true });
 		expect(res.valid).toBe(true);

src/lib/auth/password.ts

@@ -1,7 +1,5 @@
 import { randomBytes } from "node:crypto";
 import {
-	argon2id,
-	argon2Verify,
 	bcrypt,
 	bcryptVerify,
 	md5,
@@ -9,55 +7,7 @@ import {
 
 import { env } from "@/env";
 
-// AtomCMS hashing (config/hashing.php): argon2id with memory=65536 KiB, time=4,
-// threads=1; bcrypt rounds=12 as the legacy fallback. The game emulator
-// validates the SAME users.password hash, so these must match.
-function argon2Params() {
-	return {
-		parallelism: env.ARGON2_PARALLELISM,
-		iterations: env.ARGON2_ITERATIONS,
-		memorySize: env.ARGON2_MEMORY_SIZE,
-		hashLength: 32,
-	} as const;
-}
-
-
-// Which algorithm hashPassword() emits for NEW/upgraded passwords.
-//   - "bcrypt"  (DEFAULT): 60-char $2y$ hash. Fits varchar(255) users.password.
-//   - "argon2id": ~97-char PHC hash. Opt in with PASSWORD_HASH=argon2id.
-// verifyPassword() always accepts BOTH, so logins keep working either way.
-function hashDriver(): "bcrypt" | "argon2id" {
-	return env.PASSWORD_HASH === "argon2id" ? "argon2id" : "bcrypt";
-}
-
-/**
- * Lowercase hex md5 of a UTF-8 string (matches PHP md5()).
- *
- * This uses hash-wasm's MD5 (not node:crypto) to match PHP's md5() output,
- * enabling verification of legacy AtomCMS password hashes during the on-login
- * upgrade path (isMd5Of → checkLogin). It is NOT used to hash new passwords
- * and does NOT affect credential security.
- */
-export async function md5Hex(input: string): Promise<string> {
-	return await md5(input);
-}
-
-/**
- * Hash a new password with the configured driver. Defaults to bcrypt ($2y$,
- * rounds=12) so the result fits a varchar(64) column; set PASSWORD_HASH=argon2id
- * for argon2id (requires a wider column). Both are verifiable by verifyPassword.
- */
 export async function hashPassword(password: string): Promise<string> {
-	if (hashDriver() === "argon2id") {
-		return argon2id({
-			password,
-			salt: randomBytes(16),
-			outputType: "encoded",
-			...argon2Params(),
-		});
-	}
-	// hash-wasm bcrypt emits $2a$; normalise to the PHP-canonical $2y$ the
-	// emulator and existing AtomCMS rows use.
 	const h = await bcrypt({
 		password,
 		salt: randomBytes(16),
@@ -67,7 +17,10 @@ export async function hashPassword(password: string): Promise<string> {
 	return h.replace(/^\$2[ab]\$/, "$2y$");
 }
 
-/** True when `stored` is exactly the md5 of `password` (legacy AtomCMS accounts). */
+export async function md5Hex(input: string): Promise<string> {
+	return await md5(input);
+}
+
 export async function isMd5Of(
 	password: string,
 	stored: string,
@@ -78,22 +31,10 @@ export async function isMd5Of(
 	);
 }
 
-/**
- * Verify a password against a stored hash, auto-detecting the algorithm the way
- * Laravel's Hash::check does. Returns false for unknown/legacy formats (md5 is
- * handled by the conversion path in checkLogin, not here).
- */
 export async function verifyPassword(
 	password: string,
 	stored: string,
 ): Promise<boolean> {
-	if (stored.startsWith("$argon2")) {
-		try {
-			return await argon2Verify({ password, hash: stored });
-		} catch {
-			return false;
-		}
-	}
 	if (/^\$2[aby]\$/.test(stored)) {
 		try {
 			return await bcryptVerify({ password, hash: stored });
@@ -106,15 +47,9 @@ export async function verifyPassword(
 
 export interface LoginCheck {
 	valid: boolean;
-	/** Set when a legacy md5 hash was upgraded — persist it to users.password. */
 	upgradedHash?: string;
 }
 
-/**
- * Full AtomCMS credential check including the md5 -> argon2id on-login upgrade
- * (gated by `convertPasswords`, i.e. config('habbo.site.convert_passwords')).
- * Mirrors RedirectIfTwoFactorAuthenticatable::convertUserPassword + validate.
- */
 export async function checkLogin(
 	password: string,
 	stored: string,