Make cookie banner origin immutable after creation

Origin is a fundamental identity property of a banner tied to consent
records for a specific site. Changing it would break the audit trail
and violate GDPR consent specificity requirements.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/cookiebanner/service.go

@@ -61,7 +61,6 @@ type (
 	UpdateCookieBannerRequest struct {
 		CookieBannerID    gid.GID
 		Name              *string
-		Origin            *string
 		PrivacyPolicyURL  *string
 		ConsentExpiryDays *int
 		ConsentMode       *coredata.CookieConsentMode
@@ -175,7 +174,6 @@ func (r *UpdateCookieBannerRequest) Validate() error {
 
 	v.Check(r.CookieBannerID, "cookie_banner_id", validator.Required(), validator.GID(coredata.CookieBannerEntityType))
 	v.Check(r.Name, "name", validator.SafeTextNoNewLine(255))
-	v.Check(r.Origin, "origin", validator.Origin())
 	v.Check(r.PrivacyPolicyURL, "privacy_policy_url", validator.URL())
 	v.Check(r.ConsentExpiryDays, "consent_expiry_days", validator.Min(1))
 	v.Check(r.ConsentMode, "consent_mode", validator.OneOfSlice(coredata.CookieConsentModes()))
@@ -775,9 +773,6 @@ func (s *Service) UpdateCookieBanner(
 			if req.Name != nil {
 				banner.Name = *req.Name
 			}
-			if req.Origin != nil {
-				banner.Origin = CanonicalizeOrigin(*req.Origin)
-			}
 			if req.PrivacyPolicyURL != nil {
 				banner.PrivacyPolicyURL = *req.PrivacyPolicyURL
 			}

pkg/coredata/cookie_banner.go

@@ -392,7 +392,6 @@ func (b *CookieBanner) Update(
 UPDATE cookie_banners
 SET
 	name = @name,
-	origin = @origin,
 	state = @state,
 	privacy_policy_url = @privacy_policy_url,
 	consent_expiry_days = @consent_expiry_days,
@@ -410,7 +409,6 @@ WHERE
 	args := pgx.StrictNamedArgs{
 		"id":                  b.ID,
 		"name":                b.Name,
-		"origin":              b.Origin,
 		"state":               b.State,
 		"privacy_policy_url":  b.PrivacyPolicyURL,
 		"consent_expiry_days": b.ConsentExpiryDays,

pkg/server/api/console/v1/cookie_banner_resolvers.go

@@ -269,7 +269,6 @@ func (r *mutationResolver) UpdateCookieBanner(ctx context.Context, input types.U
 		cookiebanner.UpdateCookieBannerRequest{
 			CookieBannerID:    input.CookieBannerID,
 			Name:              input.Name,
-			Origin:            input.Origin,
 			PrivacyPolicyURL:  input.PrivacyPolicyURL,
 			ConsentExpiryDays: input.ConsentExpiryDays,
 			ConsentMode:       input.ConsentMode,
@@ -280,9 +279,6 @@ func (r *mutationResolver) UpdateCookieBanner(ctx context.Context, input types.U
 		if errors.Is(err, cookiebanner.ErrBannerNotFound) {
 			return nil, gqlutils.NotFound(ctx, err)
 		}
-		if errors.Is(err, cookiebanner.ErrOriginAlreadyInUse) {
-			return nil, gqlutils.Conflict(ctx, err)
-		}
 		if validationErrors, ok := errors.AsType[validator.ValidationErrors](err); ok {
 			return nil, gqlutils.InvalidValidationErrors(ctx, validationErrors)
 		}

pkg/server/api/console/v1/graphql/cookie_banner.graphql

@@ -274,7 +274,6 @@ input CreateCookieBannerInput {
 input UpdateCookieBannerInput {
     cookieBannerId: ID!
     name: String
-    origin: String
     privacyPolicyUrl: String
     consentExpiryDays: Int
     consentMode: CookieConsentMode