Files
webhooker/internal/handlers/source_management_test.go
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Allow retention_days of 0 to mean retain forever (closes #79)
RetentionDays carried gorm:"default:30", so GORM substituted 30 for a
zero value while building the insert. A webhook could therefore never
be configured to keep its events indefinitely: the reaper's
retain-forever branch existed but was unreachable from the normal
create and edit flows.

Introduce database.RetentionForeverDays = 365 * 1000 as the sentinel
for "retain forever" and a Webhook.BeforeSave hook that rewrites any
non-positive RetentionDays to it. The rewrite has to live in the hook
rather than at the call sites: GORM applies the column default while
converting the model to insert values, which happens after BeforeSave,
so anything later loses that race. Putting it on the model also means
a future call site, such as the planned REST API, cannot bypass it.

The reaper now skips a webhook when Webhook.RetainsForever reports
true, which recognises the sentinel and keeps honouring the old <= 0
values for rows written before it existed. Without this the sentinel,
being positive, would have produced a cutoff a thousand years in the
past and a DELETE matching nothing on every sweep.

Form handling is shared by create and edit through parseRetentionDays
so the two cannot drift: an empty field keeps the previous behaviour
(default on create, unchanged on edit), 0 is honoured, and an
unparseable or negative value is a 400 that re-renders the form rather
than a silently substituted default.

The retention inputs drop max="365". That cap was not cosmetic: the
edit form pre-fills the stored value, so a retain-forever webhook
rendered 365000 into an input capped at 365 and browser validation
would have blocked saving any edit to it. min becomes 0 with a hint
explaining what 0 does, and the list and detail views render a
RetentionLabel of "forever" instead of a raw day count.

The 30-day default is consolidated into database.DefaultRetentionDays,
referenced from the handler and from the create form's pre-filled
value, with a test asserting it agrees with the struct tag that cannot
reference it.
2026-08-09 02:32:34 +00:00

482 lines
11 KiB
Go

package handlers_test
import (
"context"
"net/http"
"net/http/httptest"
"net/url"
"strconv"
"strings"
"testing"
"github.com/go-chi/chi"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gorm.io/gorm/clause"
"sneak.berlin/go/webhooker/internal/database"
"sneak.berlin/go/webhooker/internal/handlers"
"sneak.berlin/go/webhooker/internal/session"
)
const (
// sourceTestUserID is the session user id used by the webhook
// management tests.
sourceTestUserID = "source-test-user"
// sourceIDParam is the chi URL parameter naming a webhook.
sourceIDParam = "sourceID"
)
// formRequest builds an urlencoded POST to path carrying the given
// cookies, plus any chi URL parameters the handler reads.
func formRequest(
path string,
cookies []*http.Cookie,
form url.Values,
urlParams map[string]string,
) *http.Request {
req := httptest.NewRequestWithContext(
context.Background(),
http.MethodPost,
path,
strings.NewReader(form.Encode()),
)
req.Header.Set(
"Content-Type", "application/x-www-form-urlencoded",
)
for _, c := range cookies {
req.AddCookie(c)
}
rctx := chi.NewRouteContext()
for k, v := range urlParams {
rctx.URLParams.Add(k, v)
}
return req.WithContext(
context.WithValue(req.Context(), chi.RouteCtxKey, rctx),
)
}
// getRequest builds a GET to path carrying the given cookies, plus any
// chi URL parameters the handler reads.
func getRequest(
t *testing.T,
path string,
cookies []*http.Cookie,
urlParams map[string]string,
) *http.Request {
t.Helper()
req := httptest.NewRequestWithContext(
context.Background(), http.MethodGet, path, nil,
)
for _, c := range cookies {
req.AddCookie(c)
}
rctx := chi.NewRouteContext()
for k, v := range urlParams {
rctx.URLParams.Add(k, v)
}
return req.WithContext(
context.WithValue(req.Context(), chi.RouteCtxKey, rctx),
)
}
// submitCreate posts the webhook creation form with the given
// retention_days value (omitted entirely when retention is nil) and
// returns the recorder.
func submitCreate(
t *testing.T,
h *handlers.Handlers,
cookies []*http.Cookie,
name string,
retention *string,
) *httptest.ResponseRecorder {
t.Helper()
form := url.Values{}
form.Set("name", name)
if retention != nil {
form.Set("retention_days", *retention)
}
req := formRequest("/sources/new", cookies, form, nil)
w := httptest.NewRecorder()
h.HandleSourceCreateSubmit().ServeHTTP(w, req)
return w
}
// onlyWebhook loads the single webhook belonging to the test user.
func onlyWebhook(
t *testing.T,
db *database.Database,
) database.Webhook {
t.Helper()
var webhooks []database.Webhook
require.NoError(
t,
db.DB().Where("user_id = ?", sourceTestUserID).
Find(&webhooks).Error,
)
require.Len(t, webhooks, 1)
return webhooks[0]
}
// seedWebhook inserts a webhook owned by the test user with an exact
// stored retention value, bypassing Webhook.BeforeSave via a
// column-level update so that legacy rows can be planted too.
func seedWebhook(
t *testing.T,
db *database.Database,
retentionDays int,
) database.Webhook {
t.Helper()
wh := &database.Webhook{
UserID: sourceTestUserID,
Name: "seeded",
RetentionDays: retentionDays,
}
require.NoError(
t,
db.DB().Omit(clause.Associations).Create(wh).Error,
)
require.NoError(
t,
db.DB().Model(wh).
Update("retention_days", retentionDays).Error,
)
wh.RetentionDays = retentionDays
return *wh
}
// storedRetentionDays reads the retention_days column for a webhook.
func storedRetentionDays(
t *testing.T,
db *database.Database,
id string,
) int {
t.Helper()
var got int
require.NoError(
t,
db.DB().Model(&database.Webhook{}).
Where("id = ?", id).
Pluck("retention_days", &got).Error,
)
return got
}
// sourceTestEnv bundles the handler, session, and database a webhook
// management test drives.
type sourceTestEnv struct {
handlers *handlers.Handlers
db *database.Database
cookies []*http.Cookie
}
func setupSourceTest(t *testing.T) *sourceTestEnv {
t.Helper()
var h *handlers.Handlers
var sess *session.Session
var db *database.Database
app := newTestApp(t, &h, &sess, &db)
app.RequireStart()
t.Cleanup(app.RequireStop)
return &sourceTestEnv{
handlers: h,
db: db,
cookies: authenticatedCookies(
t, sess, sourceTestUserID, "sourceuser",
),
}
}
// TestHandleSourceCreateSubmit_ZeroRetentionPersistsForever is the core
// regression test for the bug: the create form's 0 must reach the
// database as the retain-forever sentinel rather than being replaced by
// the column's default of 30.
func TestHandleSourceCreateSubmit_ZeroRetentionPersistsForever(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
zero := "0"
w := submitCreate(t, env.handlers, env.cookies, "forever", &zero)
require.Equal(t, http.StatusSeeOther, w.Code)
wh := onlyWebhook(t, env.db)
assert.Equal(
t,
database.RetentionForeverDays,
storedRetentionDays(t, env.db, wh.ID),
)
assert.True(t, wh.RetainsForever())
}
func TestHandleSourceCreateSubmit_OmittedRetentionUsesDefault(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
w := submitCreate(t, env.handlers, env.cookies, "defaulted", nil)
require.Equal(t, http.StatusSeeOther, w.Code)
wh := onlyWebhook(t, env.db)
assert.Equal(
t,
database.DefaultRetentionDays,
storedRetentionDays(t, env.db, wh.ID),
)
}
// TestHandleSourceCreate_PrefillsDefaultFromConstant keeps the create
// form's pre-filled retention from becoming a third hardcoded copy of
// the 30-day policy.
func TestHandleSourceCreate_PrefillsDefaultFromConstant(t *testing.T) {
t.Parallel()
env := setupSourceTest(t)
w := httptest.NewRecorder()
env.handlers.HandleSourceCreate().ServeHTTP(
w, getRequest(t, "/sources/new", env.cookies, nil),
)
require.Equal(t, http.StatusOK, w.Code)
body := w.Body.String()
assert.Contains(
t, body,
`value="`+strconv.Itoa(database.DefaultRetentionDays)+`"`,
)
assert.NotContains(
t, body, `max="365"`,
"a max below the sentinel would block retain-forever",
)
assert.Contains(t, body, `min="0"`)
}
func TestHandleSourceCreateSubmit_InvalidRetentionIsRejected(
t *testing.T,
) {
t.Parallel()
for _, raw := range []string{"abc", "-1", "3.5"} {
t.Run(raw, func(t *testing.T) {
t.Parallel()
env := setupSourceTest(t)
w := submitCreate(
t, env.handlers, env.cookies, "bad", &raw,
)
assert.Equal(t, http.StatusBadRequest, w.Code)
assert.Contains(
t, w.Body.String(), "Retention must be",
)
var count int64
require.NoError(
t,
env.db.DB().Model(&database.Webhook{}).
Where("user_id = ?", sourceTestUserID).
Count(&count).Error,
)
assert.Zero(
t, count,
"no webhook may be created from a rejected form",
)
})
}
}
// submitEdit posts the webhook edit form for the given webhook.
func submitEdit(
t *testing.T,
env *sourceTestEnv,
wh database.Webhook,
retention string,
) *httptest.ResponseRecorder {
t.Helper()
form := url.Values{}
form.Set("name", wh.Name)
form.Set("description", wh.Description)
form.Set("retention_days", retention)
req := formRequest(
"/source/"+wh.ID+"/edit",
env.cookies,
form,
map[string]string{sourceIDParam: wh.ID},
)
w := httptest.NewRecorder()
env.handlers.HandleSourceEditSubmit().ServeHTTP(w, req)
return w
}
func TestHandleSourceEditSubmit_ZeroRetentionPersistsForever(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
wh := seedWebhook(t, env.db, database.DefaultRetentionDays)
w := submitEdit(t, env, wh, "0")
require.Equal(t, http.StatusSeeOther, w.Code)
assert.Equal(
t,
database.RetentionForeverDays,
storedRetentionDays(t, env.db, wh.ID),
)
}
func TestHandleSourceEditSubmit_InvalidRetentionIsRejected(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
wh := seedWebhook(t, env.db, database.DefaultRetentionDays)
w := submitEdit(t, env, wh, "not-a-number")
assert.Equal(t, http.StatusBadRequest, w.Code)
assert.Contains(t, w.Body.String(), "Retention must be")
assert.Equal(
t,
database.DefaultRetentionDays,
storedRetentionDays(t, env.db, wh.ID),
"a rejected form must not change the stored retention",
)
}
func TestHandleSourceEditSubmit_EmptyRetentionLeavesValueUnchanged(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
wh := seedWebhook(t, env.db, 7)
w := submitEdit(t, env, wh, "")
require.Equal(t, http.StatusSeeOther, w.Code)
assert.Equal(t, 7, storedRetentionDays(t, env.db, wh.ID))
}
// TestSourceEditForm_ForeverWebhookRoundTrips walks the exact path that
// the removed max="365" cap used to break: render the edit form for a
// retain-forever webhook, confirm the pre-filled sentinel is not capped
// by browser validation, then submit that pre-filled value straight
// back and confirm the retention policy survives untouched.
func TestSourceEditForm_ForeverWebhookRoundTrips(t *testing.T) {
t.Parallel()
env := setupSourceTest(t)
wh := seedWebhook(t, env.db, database.RetentionForeverDays)
req := getRequest(
t, "/source/"+wh.ID+"/edit", env.cookies,
map[string]string{sourceIDParam: wh.ID},
)
w := httptest.NewRecorder()
env.handlers.HandleSourceEdit().ServeHTTP(w, req)
require.Equal(t, http.StatusOK, w.Code)
sentinel := strconv.Itoa(database.RetentionForeverDays)
body := w.Body.String()
assert.Contains(
t, body, `value="`+sentinel+`"`,
"the edit form pre-fills the stored retention",
)
assert.NotContains(
t, body, `max="365"`,
"a max below the sentinel would block saving any edit",
)
assert.Contains(
t, body, "forever",
"the form explains what the sentinel means",
)
// Submit the pre-filled value back, exactly as a browser would.
post := submitEdit(t, env, wh, sentinel)
require.Equal(t, http.StatusSeeOther, post.Code)
assert.Equal(
t,
database.RetentionForeverDays,
storedRetentionDays(t, env.db, wh.ID),
)
}
// TestSourceListAndDetail_ShowForeverNotTheSentinelNumber checks that
// the retain-forever value is never rendered to the user as a raw day
// count on either read-only view.
func TestSourceListAndDetail_ShowForeverNotTheSentinelNumber(
t *testing.T,
) {
t.Parallel()
env := setupSourceTest(t)
wh := seedWebhook(t, env.db, database.RetentionForeverDays)
sentinel := strconv.Itoa(database.RetentionForeverDays)
listW := httptest.NewRecorder()
env.handlers.HandleSourceList().ServeHTTP(
listW, getRequest(t, "/sources", env.cookies, nil),
)
require.Equal(t, http.StatusOK, listW.Code)
assert.Contains(t, listW.Body.String(), "Retention: forever")
assert.NotContains(t, listW.Body.String(), sentinel)
detailW := httptest.NewRecorder()
env.handlers.HandleSourceDetail().ServeHTTP(
detailW,
getRequest(
t, "/source/"+wh.ID, env.cookies,
map[string]string{sourceIDParam: wh.ID},
),
)
require.Equal(t, http.StatusOK, detailW.Code)
assert.Contains(t, detailW.Body.String(), "Retention: forever")
assert.NotContains(t, detailW.Body.String(), sentinel)
}