feat(auth): password change (self + admin reset) with rate limiting; dedupe watchlist to user menu

artifacts/api-server/src/routes/auth.ts

@@ -5,6 +5,8 @@ import { eq, and, inArray, isNull } from "drizzle-orm";
 import { z } from "zod";
 import { db, usersTable, toolsTable, ratingsTable } from "@workspace/db";
 import { logger } from "../lib/logger";
+import { writeAuditLog } from "../lib/audit";
+import { loginRateLimit, passwordRateLimit } from "../lib/rate-limit";
 import { getEntitlements, requireFeature } from "../middleware/feature";
 
 const router: IRouter = Router();
@@ -107,7 +109,7 @@ router.get("/auth/mode", (_req, res): void => {
   res.json({ mode: isOidcConfigured() ? "oidc" : "local" });
 });
 
-router.post("/auth/login", async (req, res): Promise<void> => {
+router.post("/auth/login", loginRateLimit, async (req, res): Promise<void> => {
   if (isOidcConfigured()) {
     res.status(400).json({ error: "Use OIDC login when Keycloak is configured." });
     return;
@@ -279,6 +281,58 @@ router.get("/auth/me", async (req, res): Promise<void> => {
   });
 });
 
+router.get("/auth/password-redirect", async (req, res): Promise<void> => {
+  const client = await getClient();
+  if (!client) {
+    res.json({ url: null });
+    return;
+  }
+  const realm = client.issuer.metadata.issuer ?? "";
+  res.json({ url: `${realm}/account/password` });
+});
+
+const ChangePasswordSchema = z.object({
+  currentPassword: z.string().min(1),
+  newPassword: z.string().min(8),
+});
+
+router.post("/auth/me/password", passwordRateLimit, async (req, res): Promise<void> => {
+  if (!req.session.user) {
+    res.status(401).json({ error: "Not authenticated" });
+    return;
+  }
+  const dbUser = await resolveDbUser(req.session.user);
+  if (!dbUser) {
+    res.status(401).json({ error: "User not found" });
+    return;
+  }
+  if (dbUser.authProvider !== "local") {
+    res.status(422).json({ error: "oidc" });
+    return;
+  }
+  const parsed = ChangePasswordSchema.safeParse(req.body);
+  if (!parsed.success) {
+    res.status(400).json({ error: parsed.error.message });
+    return;
+  }
+  const { currentPassword, newPassword } = parsed.data;
+  if (currentPassword === newPassword) {
+    res.status(400).json({ error: "New password must differ from current password" });
+    return;
+  }
+  if (!dbUser.passwordHash || !(await bcrypt.compare(currentPassword, dbUser.passwordHash))) {
+    res.status(400).json({ error: "Current password is incorrect" });
+    return;
+  }
+  const passwordHash = await bcrypt.hash(newPassword, 12);
+  await db.update(usersTable).set({ passwordHash }).where(eq(usersTable.id, dbUser.id));
+  await writeAuditLog(req, "user", dbUser.id, "change_password", {});
+  await new Promise<void>((resolve, reject) => {
+    req.session.regenerate((err) => (err ? reject(err) : resolve()));
+  });
+  res.sendStatus(204);
+});
+
 type SessionUser = NonNullable<import("express-session").SessionData["user"]>;
 
 async function resolveDbUser(u: SessionUser) {