auth: case-insensitive emails, Authentik SSO, first-signin workspace provisioning

Three pieces of authentication work that need to land together so OAuth
sign-ins produce a usable session.

* `ensureUserIdByEmail` upserts a `users` row on every OAuth sign-in
  matched case-insensitively on email, then stamps `token.id` with the
  resulting UUID so workspace-scoped tRPC procedures can resolve
  membership. Credentials sign-in already returned the DB id from
  `authorize`; OAuth now does the equivalent.
* `ensureUserHasWorkspace` mints a personal workspace (and `owner`
  member row) on first sign-in for any user that doesn't already
  belong to one, so fresh OAuth accounts don't land in the app with
  no tenant scope. Idempotent; slug collisions retry with a random
  suffix and cap at 5 attempts.
* Migration 0004 adds a `UNIQUE (lower(email))` index on `users` to
  match the lookup pattern and prevent two providers from minting
  rows that differ only in casing. Existing rows are normalized to
  lowercase first; the column-level UNIQUE catches any pre-existing
  duplicates so they get resolved by a human rather than silently
  merged.

Sign-in / sign-up pages add an Authentik SSO button (gated on
`AUTH_AUTHENTIK_*` env vars). Layout switches to GitHub+Google on top
with Authentik full-width below.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Randall Stillwell 2026-06-01 23:45:00 -05:00
parent c582d621ce
commit 875b1cfc87
7 changed files with 2675 additions and 46 deletions

View file

@ -4,7 +4,7 @@ import { Suspense, useState } from "react";
import Link from "next/link";
import { useSearchParams } from "next/navigation";
import { signIn } from "next-auth/react";
import { Loader2, Lock, Mail, Sparkles } from "lucide-react";
import { Loader2, Lock, Mail, ShieldCheck, Sparkles } from "lucide-react";
import { cn } from "@/lib/utils";
function SignInForm() {
@ -130,47 +130,60 @@ function SignInForm() {
</div>
</div>
<div className="grid grid-cols-2 gap-3">
<div className="space-y-3">
<div className="grid grid-cols-2 gap-3">
<button
type="button"
onClick={() => void signIn("github", { callbackUrl })}
className={cn(
"flex items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"hover:border-[hsl(var(--primary)/0.4)] hover:bg-muted/50",
)}
>
<svg className="h-4 w-4" viewBox="0 0 24 24" fill="currentColor" aria-hidden>
<path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z" />
</svg>
GitHub
</button>
<button
type="button"
onClick={() => void signIn("google", { callbackUrl })}
className={cn(
"flex items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"hover:border-[hsl(var(--teal)/0.45)] hover:bg-muted/50",
)}
>
<svg className="h-4 w-4" viewBox="0 0 24 24" aria-hidden>
<path
fill="#4285F4"
d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
/>
<path
fill="#34A853"
d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
/>
<path
fill="#FBBC05"
d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"
/>
<path
fill="#EA4335"
d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
/>
</svg>
Google
</button>
</div>
<button
type="button"
onClick={() => void signIn("github", { callbackUrl })}
onClick={() => void signIn("authentik", { callbackUrl })}
className={cn(
"flex items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"flex w-full items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"hover:border-[hsl(var(--primary)/0.4)] hover:bg-muted/50",
)}
>
<svg className="h-4 w-4" viewBox="0 0 24 24" fill="currentColor" aria-hidden>
<path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z" />
</svg>
GitHub
</button>
<button
type="button"
onClick={() => void signIn("google", { callbackUrl })}
className={cn(
"flex items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"hover:border-[hsl(var(--teal)/0.45)] hover:bg-muted/50",
)}
>
<svg className="h-4 w-4" viewBox="0 0 24 24" aria-hidden>
<path
fill="#4285F4"
d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
/>
<path
fill="#34A853"
d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
/>
<path
fill="#FBBC05"
d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"
/>
<path
fill="#EA4335"
d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
/>
</svg>
Google
<ShieldCheck className="h-4 w-4 text-[hsl(var(--primary))]" aria-hidden />
Authentik SSO
</button>
</div>

View file

@ -2,7 +2,8 @@
import { useState } from "react";
import Link from "next/link";
import { Loader2, Mail, Sparkles, User, Lock } from "lucide-react";
import { signIn } from "next-auth/react";
import { Loader2, Lock, Mail, ShieldCheck, Sparkles, User } from "lucide-react";
import { cn } from "@/lib/utils";
export default function SignUpPage() {
@ -134,6 +135,27 @@ export default function SignUpPage() {
</button>
</form>
<div className="relative my-8">
<div className="absolute inset-0 flex items-center">
<span className="w-full border-t border-border" />
</div>
<div className="relative flex justify-center text-xs uppercase tracking-wide">
<span className="bg-card/90 px-2 text-muted-foreground">Or use single sign-on</span>
</div>
</div>
<button
type="button"
onClick={() => void signIn("authentik", { callbackUrl: "/" })}
className={cn(
"flex w-full items-center justify-center gap-2 rounded-lg border border-border bg-background py-2.5 text-sm font-medium transition",
"hover:border-[hsl(var(--primary)/0.4)] hover:bg-muted/50",
)}
>
<ShieldCheck className="h-4 w-4 text-[hsl(var(--primary))]" aria-hidden />
Continue with SSO
</button>
<p className="mt-8 text-center text-sm text-muted-foreground">
Already have an account?{" "}
<Link

View file

@ -6,11 +6,117 @@ import GitHub from "next-auth/providers/github";
import Google from "next-auth/providers/google";
/**
* Optional: `pnpm add @auth/drizzle-adapter` then wire DrizzleAdapter + session strategy "database".
* Using JWT + Credentials/OAuth; `db` is loaded dynamically inside `authorize` (Node route handler only).
* User lookup uses the postgres.js client from Drizzle (`db.$client`) so we avoid a direct `drizzle-orm` import in this app.
* Session strategy is JWT (no `@auth/drizzle-adapter`). We still want every
* authenticated request to carry a real `users.id` so workspace-scoped tRPC
* procedures can resolve membership, so OAuth sign-ins go through
* `ensureUserIdByEmail` to upsert a row in `users` (matched case-insensitively
* on email) and stamp `token.id` with the DB UUID. Credentials sign-in already
* returns the DB id from `authorize`.
*
* `db` is loaded dynamically inside callbacks so this module stays importable
* from edge contexts (middleware, etc.); the actual SQL only runs on the
* Node route handler.
*/
type Sql = (t: TemplateStringsArray, ...v: unknown[]) => Promise<unknown[]>;
async function getSql(): Promise<Sql> {
const { db } = await import("@tasks/database/client");
return (db as { $client: Sql }).$client;
}
async function ensureUserIdByEmail(args: {
email: string;
name?: string | null;
image?: string | null;
}): Promise<string | null> {
const email = args.email.trim();
if (!email) return null;
const sql = await getSql();
const existing = (await sql`
SELECT id FROM users WHERE lower(email) = lower(${email}) LIMIT 1
`) as { id: string }[];
if (existing[0]) return existing[0].id;
await sql`
INSERT INTO users (email, name, avatar_url)
VALUES (${email.toLowerCase()}, ${args.name ?? null}, ${args.image ?? null})
ON CONFLICT (email) DO NOTHING
`;
const after = (await sql`
SELECT id FROM users WHERE lower(email) = lower(${email}) LIMIT 1
`) as { id: string }[];
return after[0]?.id ?? null;
}
function slugifyForWorkspace(seed: string): string {
const cleaned = seed
.toLowerCase()
.replace(/[^a-z0-9]+/g, "-")
.replace(/^-+|-+$/g, "")
.slice(0, 50);
return cleaned || "workspace";
}
/**
* Idempotent: if the user already owns or is a member of any workspace, no-op.
* Otherwise mint a personal workspace and add them as `owner`. Runs on every
* first sign-in (credentials and OAuth alike) so freshly-created OAuth users
* don't land in the app with no tenant scope and an unusable session.
*
* Slug collisions are handled by retrying with a random 6-char suffix; we cap
* attempts so a misbehaving DB can't lock the sign-in flow.
*/
async function ensureUserHasWorkspace(args: {
userId: string;
displayName: string | null;
email: string;
}): Promise<void> {
const sql = await getSql();
const existing = (await sql`
SELECT 1
FROM workspaces w
LEFT JOIN workspace_members m
ON m.workspace_id = w.id AND m.user_id = ${args.userId}
WHERE w.owner_user_id = ${args.userId} OR m.user_id = ${args.userId}
LIMIT 1
`) as unknown[];
if (existing.length > 0) return;
const trimmedName = args.displayName?.trim() ?? "";
const seed = trimmedName || args.email.split("@")[0] || "workspace";
const baseSlug = slugifyForWorkspace(seed);
const workspaceName = trimmedName ? `${trimmedName}'s workspace` : "My workspace";
let workspaceId: string | null = null;
let candidate = baseSlug;
for (let attempt = 0; attempt < 5 && !workspaceId; attempt += 1) {
const inserted = (await sql`
INSERT INTO workspaces (slug, name, owner_user_id)
VALUES (${candidate}, ${workspaceName}, ${args.userId})
ON CONFLICT (slug) DO NOTHING
RETURNING id
`) as { id: string }[];
if (inserted[0]) {
workspaceId = inserted[0].id;
break;
}
candidate = `${baseSlug}-${Math.random().toString(36).slice(2, 8)}`;
}
if (!workspaceId) {
console.warn("[auth] Failed to provision workspace for user", args.userId);
return;
}
await sql`
INSERT INTO workspace_members (workspace_id, user_id, role)
VALUES (${workspaceId}, ${args.userId}, 'owner')
ON CONFLICT (workspace_id, user_id) DO NOTHING
`;
}
declare module "next-auth" {
interface Session {
user: {
@ -38,9 +144,7 @@ const providers: NextAuthConfig["providers"] = [
}
if (password !== devPassword) return null;
const { db } = await import("@tasks/database/client");
const sql = (db as { $client: (t: TemplateStringsArray, ...v: unknown[]) => Promise<unknown[]> })
.$client;
const sql = await getSql();
const rows = (await sql`
SELECT id, email, name, avatar_url AS "avatarUrl"
FROM users
@ -99,9 +203,38 @@ export const { handlers, auth, signIn, signOut } = NextAuth({
},
providers,
callbacks: {
async jwt({ token, user }) {
if (user?.id) {
token.id = user.id;
async signIn({ user, account }) {
// OAuth providers must give us an email so we can map to a `users` row.
if (account && account.provider !== "credentials" && !user?.email) {
return false;
}
return true;
},
async jwt({ token, user, account }) {
// First call (sign-in): `user` and `account` are present.
if (account && user) {
let dbId: string | null = null;
if (account.provider === "credentials") {
// `authorize` already returns a real DB UUID in `user.id`.
dbId = user.id ?? null;
} else if (user.email) {
dbId = await ensureUserIdByEmail({
email: user.email,
name: user.name ?? null,
image: user.image ?? null,
});
}
if (dbId) {
token.id = dbId;
// Make sure every authenticated user has a tenant they can land in.
// Cheap idempotent check; only mints a workspace on the first sign-in.
await ensureUserHasWorkspace({
userId: dbId,
displayName: user.name ?? null,
email: user.email ?? "",
});
}
}
return token;
},

View file

@ -0,0 +1,18 @@
-- ============================================================================
-- 0004 — Case-insensitive uniqueness on users.email.
-- ============================================================================
-- Belt-and-braces: keep the existing column-level UNIQUE on `email` and add a
-- UNIQUE expression index on `lower(email)`. This makes the case-insensitive
-- lookups in `apps/web/lib/auth.ts` (`ensureUserIdByEmail`, the credentials
-- `authorize`) safe forever, and prevents OAuth providers from minting two
-- rows that differ only in casing.
--
-- We normalize existing rows to lowercase first. If the data already contains
-- two rows whose emails differ only in case, the UPDATE will hit the existing
-- column-level UNIQUE and fail loudly — that's the right behavior, since
-- merging duplicate human accounts requires a human decision.
-- ============================================================================
UPDATE "users" SET "email" = lower("email") WHERE "email" <> lower("email");
--> statement-breakpoint
CREATE UNIQUE INDEX "users_email_lower_unique" ON "users" USING btree (lower("email"));

File diff suppressed because it is too large Load diff

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@ -29,6 +29,13 @@
"when": 1778124738113,
"tag": "0003_damp_green_goblin",
"breakpoints": true
},
{
"idx": 4,
"version": "7",
"when": 1779987416637,
"tag": "0004_medical_blob",
"breakpoints": true
}
]
}

View file

@ -1,3 +1,4 @@
import { sql } from "drizzle-orm";
import {
pgTable,
uuid,
@ -22,6 +23,12 @@ export const users = pgTable(
},
(table) => ({
emailIdx: index("users_email_idx").on(table.email),
// Belt-and-braces: existing column-level UNIQUE on `email` plus a
// case-insensitive UNIQUE on `lower(email)`. The latter prevents
// accidentally storing `Alice@x.com` and `alice@x.com` as two users
// and makes the case-insensitive lookups in `apps/web/lib/auth.ts`
// safe even if upstream rows were created mixed-case.
emailLowerUnique: uniqueIndex("users_email_lower_unique").on(sql`lower(${table.email})`),
}),
);