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sulthan 2ef769d421 Open registration to guild members (#27) (#36)
Closes #27.

Guild membership is now the whole gate. `discordCallback` checks membership
(and `DISCORD_REQUIRED_ROLE` when set), then `Store.EnsureReader` creates the
Reader on first sight and returns the same row on every later login. The
refusal returns before `EnsureReader`, so a turned-away sign-in leaves no row
behind. `OWNER_DISCORD_ID` still seeds the owner, but only as the
administrator — it no longer gates login.

The cutover grace path goes with it: `API_TOKEN`, `API_TOKEN_GRACE_UNTIL` and
the legacy branch in `httpmw.ResolveReader` are deleted, so a credential
authenticates exactly one Reader or nothing. `userscript.Handler` drops its
re-derivation too — the resolved path segment is already the credential.

New surfaces: an empty library offers both install links (behind the
tab-specific empty states, so "No favourites yet" still wins), and the owner
alone gets a Readers panel with `POST /readers/{id}/revoke`. The owner's own
row is not revocable — 404, not a self-logout.

Isolation is asserted from both directions for read, modify and delete, and
the shared-series invariant is pinned: two Readers on one series produce one
series row, two independent progresses, one poll per due cycle, and one
Reader's delete leaves the other's bookmark and the poll intact.

Verified: `go test ./...` green; live smoke against a throwaway Postgres —
empty-library state in both colour branches, roster rendering, a real revoke
through the panel (target 401s next request, owner untouched), owner
self-revoke refused 404, per-Reader `/u/<cred>` and bearer auth both 200 with
404 for an unknown credential.

Reviewed-on: #36
Co-authored-by: Sulthan Zaki <sultankiki05@gmail.com>
Co-committed-by: Sulthan Zaki <sultankiki05@gmail.com>
2026-08-08 20:23:17 +07:00

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HTML

{{/* The owner's Reader roster. Rendered only for the owner (listView.Owner),
and re-rendered whole as the response to a revocation so the session
counts cannot describe the state before the tap. Revocation is
confirm-gated: it signs someone out of every device at once. */}}
{{define "readers"}}
<details class="setup" id="readers">
<summary>Readers</summary>
<p class="setup-copy">Everyone who has signed in through Discord. Revoking
signs a Reader out of every device; their library and bookmarks are
untouched, and they can sign in again.</p>
<ul class="readerlist">
{{range .Readers}}
<li>
<span class="reader-id">{{.DiscordID}}</span>
<span class="reader-sessions">{{.Sessions}} session{{if ne .Sessions 1}}s{{end}}</span>
{{/* The owner's own row never offers Revoke: it is the one row where the
button would sign the tapping browser out, and the endpoint refuses
it anyway. Logout is the deliberate way to do that. */}}
{{if and .Sessions (ne .ID $.OwnerID)}}
<form hx-post="/readers/{{.ID}}/revoke" hx-target="#readers" hx-swap="outerHTML"
hx-confirm="Revoking signs this Reader out on every device immediately. Revoke?">
<button type="submit" class="ghost danger">Revoke sessions</button>
</form>
{{end}}
</li>
{{end}}
</ul>
</details>
{{end}}