fix(email): unsubscribe via Bento visitor uuid without leaking email in GET - #3193
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Included review availability: Your plan provides up to 2 included reviews per hour; 1 remains after this review. 📝 WalkthroughWalkthroughEmail preference links now support Bento visitor UUIDs. The API resolves UUIDs server-side for lookup and saving, applies UUID-aware rate limiting, and preserves legacy email links. The frontend, documentation, and tests cover validation, lookup, saving, and unsubscribe behavior. ChangesUUID email preferences
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to UUID-based preference updates and unsubscribes can silently succeed without changing the subscriber when Bento lookup fails, so this PR should not merge until that failure path is fixed or explicitly accepted by the owner. Sequence Diagram(s)sequenceDiagram
participant Visitor
participant PreferencesPage as Email preferences page
participant PreferencesAPI as Email preferences API
participant Bento as Bento API
Visitor->>PreferencesPage: Open UUID preference link
PreferencesPage->>PreferencesAPI: GET with UUID
PreferencesAPI->>Bento: Resolve subscriber email
Bento-->>PreferencesAPI: Email, null, or lookup failure
PreferencesAPI-->>PreferencesPage: Resolved email response
Visitor->>PreferencesPage: Save preferences
PreferencesPage->>PreferencesAPI: POST email or UUID
PreferencesAPI->>Bento: Resolve UUID when needed
PreferencesAPI-->>Visitor: Save result
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Actionable comments posted: 2
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Inline comments:
In `@supabase/functions/_backend/private/email_preferences.ts`:
- Around line 157-160: Replace the direct c.json invalid-payload response in the
uuidQuerySchema validation branch with the project’s standard simpleError() or
quickError() helper, preserving the existing 400 status and invalid
email-preferences payload semantics.
- Around line 144-145: Preserve Bento lookup failures in the email preference
resolution flow: at supabase/functions/_backend/private/email_preferences.ts
lines 144-145, keep undefined from getBentoSubscriberEmailByUuid distinct from
null; at lines 165-166, return the existing generic retryable failure for
undefined while retaining success behavior for null. Add GET and POST coverage
for failed Bento lookups in tests/email-preferences-public.unit.test.ts lines
433-464.
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docs/BENTO_EMAIL_PREFERENCES_SETUP.mdsrc/pages/email-preferences.vuesupabase/functions/_backend/private/email_preferences.tssupabase/functions/_backend/utils/bento.tstests/bento-abort-signal.unit.test.tstests/bento-response-acceptance.unit.test.tstests/email-preferences-public.unit.test.ts
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Actionable comments posted: 1
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Inline comments:
In `@supabase/functions/_backend/private/email_preferences.ts`:
- Line 43: Update the email schema in email preferences to replace the
deprecated chained email() validator with the Zod 4 top-level z.email() form via
pipe, while preserving trimming, optionality, and the max-length constraint.
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docs/BENTO_EMAIL_PREFERENCES_SETUP.mdsrc/pages/email-preferences.vuesupabase/functions/_backend/private/email_preferences.tstests/email-preferences-public.unit.test.ts
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Bento links with visitor.uuid now resolve the address server-side, while already-sent ?email= links still work. Co-authored-by: Cursor <cursoragent@cursor.com>
Keep native form validation from blocking uuid-backed saves, and return a retryable error instead of a false success when the subscriber lookup fails. Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Martin DONADIEU <martindonadieu@gmail.com>
Co-authored-by: Martin DONADIEU <martindonadieu@gmail.com>
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Co-authored-by: Martin DONADIEU <martindonadieu@gmail.com>
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3 participants
Summary (AI generated)
{{ visitor.uuid }}in the URL/body and resolve the subscriber email through BentoGET /fetch/subscribers.?email=links already sent in mail still work unchanged.https://console.capgo.app/email-preferences?uuid={{ visitor.uuid }}.Motivation (AI generated)
Putting
visitor.emailin a GET query leaks the address through logs, browser history, and Referer. Bento asked for a hash (visitor.uuid) plus an API lookup. Mail already in inboxes still uses?email=, so both paths must keep working.Business Impact (AI generated)
Stops PII leakage on new unsubscribe/preference links without breaking opt-out for people who already received the old URL. Compliance-safer footer links, same public opt-out UX.
Test Plan (AI generated)
/email-preferences?email=you@example.com(legacy) — address prefills, save still works./email-preferences?uuid=<bento visitor uuid>— email is resolved and prefills, URL stays uuid-only./private/email_preferences?email=...is rejected (no email lookup oracle).?uuid={{ visitor.uuid }}(manual Bento upload). Already-sent mail does not need changes.Generated with AI
Made with Cursor
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@codesmith-botwith what you need. Autofix is disabled.Summary by CodeRabbit
New Features
Documentation
Tests