> For the complete documentation index, see [llms.txt](https://seekspeed.gitbook.io/seekspeed-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://seekspeed.gitbook.io/seekspeed-docs/security/share-tokens.md).

# Share Tokens

Reports can be shared publicly without exposing the rest of the workspace. The mechanism is a per-report `share_token` plus a strict RLS policy that requires the token in the `x-share-token` request header.

## RLS policy

```sql
CREATE POLICY "anon reads shared reports"
  ON public.reports FOR SELECT TO anon
  USING (
    share_token IS NOT NULL
    AND share_token = current_setting('request.headers.x-share-token', true)::text
  );
```

No header → no row. Wrong header → no row. There is no `share_token IS NOT NULL` shortcut that returns the row to anonymous traffic without the matching header, which is the bug class the policy is designed to prevent.

## Client read

The public report page on `/r/$token` calls a server function that forwards the token via header:

```ts
const { data } = await supabase
  .from("reports")
  .select("*")
  .eq("share_token", token)
  .maybeSingle()
  .headers({ "x-share-token": token });
```

## Revoking

Setting `share_token = NULL` on a row immediately invalidates the public URL. There is no separate token-revocation table.


---

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