Add APP_EMAIL_ALLOWLIST gate on account creation
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An optional comma-separated list of glob patterns restricting which
addresses may register, applied on top of APP_ALLOW_REGISTRATION. A
non-matching new address is silently ignored exactly like registration
being off; an address that already has an account can still sign in.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-09-06 21:26:33 +01:00
co-authored by Claude Sonnet 5
parent 06d5b721a3
commit 8732e0e5f5
9 changed files with 120 additions and 7 deletions
+1 -1
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@@ -25,7 +25,7 @@ There is no password and no separate registration endpoint. Entering an email ad
Request: `{ "email": "ada@example.com" }`.
Emails a one-time sign-in link (`<APP_URL>/verify-email?token=…`, 15-minute expiry) and always returns `202` with the same message. If the address has no account yet, one is created (unverified) right here — that's the only "sign up" there is — unless `APP_ALLOW_REGISTRATION=false`, in which case an unknown address is silently ignored (still `202`, nothing sent) and only an address that already has an account can sign in. A link is only actually (re-)sent if this address hasn't been emailed one in the last 60 seconds. `422` if the address is malformed.
Emails a one-time sign-in link (`<APP_URL>/verify-email?token=…`, 15-minute expiry) and always returns `202` with the same message. If the address has no account yet, one is created (unverified) right here — that's the only "sign up" there is — unless `APP_ALLOW_REGISTRATION=false`, or `APP_EMAIL_ALLOWLIST` is set and the address doesn't match one of its comma-separated glob patterns. In either case an unknown address is silently ignored (still `202`, nothing sent) and only an address that already has an account can sign in. A link is only actually (re-)sent if this address hasn't been emailed one in the last 60 seconds. `422` if the address is malformed.
```json
{ "message": "Check your email for a link to sign in." }
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@@ -55,6 +55,7 @@ All settings are optional environment variables (read from `.env` or the real en
| `JWT_SECRET` | auto-generated into `storage/secret.key` | Token signing key |
| `JWT_TTL` | `86400` | Token lifetime in seconds |
| `APP_ALLOW_REGISTRATION` | `true` | When `false`, a magic link is only ever sent to an existing address — an unknown one is silently ignored, so no new accounts get created |
| `APP_EMAIL_ALLOWLIST` | — (any address) | Comma-separated glob patterns (`*@example.com, *@*.example.org, someone@gmail.com`) restricting which addresses may create an account, on top of `APP_ALLOW_REGISTRATION`. Case-insensitive. An unknown address that doesn't match is silently ignored, exactly like registration being off; an address that already has an account can still sign in even if it no longer matches |
| `MAGIC_LINK_RESEND_SECONDS` | `60` | Minimum gap before a magic link can be resent to the same address (sign-in or email-change). Docker Compose overrides this to `0`, so links resend immediately in development |
| `MAX_PROJECTS_PER_OWNER` | `0` | Maximum number of projects a single user may create. `0` means unlimited |
| `APP_URL` | `http://localhost:8080` | Base URL used to build magic links (`http://localhost:5173` for a host `npm run dev`) |