oficina / sheets Public

Test the native exchange across both sessions packages (review #44, nit 1)

native.go's one pre-move import builds rastrillo/native's sessions over
the app's table, and nothing exercised that bridge: the exchange, a
minted session's expiry and its revocation. Three tests now drive it
through the router: approval, 202 before it, a wrong verifier refused,
the minted cookie under the name the app reads, accepted by the app as
the same person, spent after one use; an expired browser session can
neither approve nor exchange, and a minted one expires; a browser
signed out between approval and exchange is refused, and the app's
/signout ends a minted session and leaves the browser's.

Red under three mutations of native.go (an http origin, so another
cookie name; already-expired mints; a row resolving to someone else):
polish-audit/r3/scripts/migrate-sheets-native-red.txt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Paul Campbell pushed by paul@keymail.dev 095b010769528dc50743eedb1bb96c68de670a0f parent 6fc76ab
1 file changed, +245 −0
  • internal/sheets/native_exchange_test.go +245 −0
diff --git a/internal/sheets/native_exchange_test.go b/internal/sheets/native_exchange_test.go
new file mode 100644
index 0000000..0083188
--- /dev/null
+++ b/internal/sheets/native_exchange_test.go
@@ -0,0 +1,245 @@
+package sheets
+
+import (
+ "crypto/rand"
+ "crypto/sha256"
+ "encoding/base64"
+ "encoding/json"
+ "net/http"
+ "net/http/httptest"
+ "net/url"
+ "strings"
+ "testing"
+ "time"
+
+ "amadan.net/rastrillo/rastrillo/sessions"
+)
+
+// The native sign-in crosses two rastrillo module paths. The app's
+// sessions are amadan.net/rastrillo/rastrillo's; rastrillo/native's
+// server only takes github.com/carlosframework/rastrillo's, which
+// native.go builds over the same database (the one import
+// TestNoPreMoveRastrillo allows). These tests drive the whole exchange
+// through the router, so a change to either package's sessions table,
+// cookie name, token hash or time layout fails here rather than in the
+// Mac app: approval of a browser session, the exchange minting a new
+// one, that one being an ordinary session to the app, and expiry and
+// revocation holding on both sides.
+
+// nativeApp is signInWithOrigin's app with the native routes mounted, as
+// main mounts them, and the browser session's cookies.
+func nativeApp(t *testing.T) (*App, []*http.Cookie) {
+ t.Helper()
+ app, cookies := signInWithOrigin(t)
+ if err := app.ConfigureNative(); err != nil {
+ t.Fatalf("ConfigureNative: %v", err)
+ }
+ return app, cookies
+}
+
+func randomProof(t *testing.T) string {
+ t.Helper()
+ b := make([]byte, 32)
+ if _, err := rand.Read(b); err != nil {
+ t.Fatal(err)
+ }
+ return base64.RawURLEncoding.EncodeToString(b)
+}
+
+// nativeJSONPost is a native client's POST: JSON, from the app's origin.
+func nativeJSONPost(t *testing.T, app *App, path string, body any) *httptest.ResponseRecorder {
+ t.Helper()
+ data, err := json.Marshal(body)
+ if err != nil {
+ t.Fatal(err)
+ }
+ req := httptest.NewRequest(http.MethodPost, path, strings.NewReader(string(data)))
+ req.Header.Set("Content-Type", "application/json")
+ req.Header.Set("Origin", testOrigin)
+ return do(t, app, req)
+}
+
+// nativeRequest starts a request and returns its id and verifier.
+func nativeRequest(t *testing.T, app *App) (id, verifier string) {
+ t.Helper()
+ verifier = randomProof(t)
+ sum := sha256.Sum256([]byte(verifier))
+ rec := nativeJSONPost(t, app, "/native/request", map[string]string{"challenge": base64.RawURLEncoding.EncodeToString(sum[:])})
+ if rec.Code != http.StatusOK {
+ t.Fatalf("POST /native/request = %d: %s", rec.Code, rec.Body.String())
+ }
+ var out struct{ ID string }
+ if err := json.Unmarshal(rec.Body.Bytes(), &out); err != nil || out.ID == "" {
+ t.Fatalf("POST /native/request answered %q", rec.Body.String())
+ }
+ return out.ID, verifier
+}
+
+// nativeApprove is the signed-in browser pressing "Sign in to Sheets app".
+func nativeApprove(t *testing.T, app *App, cookies []*http.Cookie, id string) *httptest.ResponseRecorder {
+ t.Helper()
+ req := httptest.NewRequest(http.MethodPost, "/native/authorize?id="+id, nil)
+ req.Header.Set("Origin", testOrigin)
+ return do(t, app, as(req, cookies))
+}
+
+func nativeExchange(t *testing.T, app *App, id, verifier string) *httptest.ResponseRecorder {
+ t.Helper()
+ return nativeJSONPost(t, app, "/native/exchange", map[string]string{"id": id, "verifier": verifier})
+}
+
+// sessionCookie picks the session cookie out of cookies.
+func sessionCookie(t *testing.T, cookies []*http.Cookie) *http.Cookie {
+ t.Helper()
+ for _, c := range cookies {
+ if strings.Contains(c.Name, "session") {
+ return c
+ }
+ }
+ t.Fatalf("no session cookie in %v", cookies)
+ return nil
+}
+
+// listWith is GET /sheets with one session cookie: 200 signed in.
+func listWith(t *testing.T, app *App, c *http.Cookie) int {
+ t.Helper()
+ return do(t, app, as(httptest.NewRequest(http.MethodGet, "/sheets", nil), []*http.Cookie{c})).Code
+}
+
+// setSessionExpiry rewrites one session row's expiry, by its token.
+func setSessionExpiry(t *testing.T, app *App, token string, at time.Time) {
+ t.Helper()
+ res := app.db.Exec(`UPDATE sessions SET expires_at = ? WHERE token_hash = ?`,
+ at.UTC().Format(time.RFC3339), sessions.HashToken(token))
+ if res.Error != nil || res.RowsAffected != 1 {
+ t.Fatalf("expire session: %v, %d rows", res.Error, res.RowsAffected)
+ }
+}
+
+func TestNativeExchangeMintsASessionTheAppAccepts(t *testing.T) {
+ app, cookies := nativeApp(t)
+ browser := sessionCookie(t, cookies)
+ create := postForm("/sheets", url.Values{"title": {"Native probe"}})
+ create.Header.Set("Origin", testOrigin)
+ if rec := do(t, app, as(create, cookies)); rec.Code != http.StatusSeeOther {
+ t.Fatalf("creating a sheet = %d: %s", rec.Code, rec.Body.String())
+ }
+ id, verifier := nativeRequest(t, app)
+
+ if rec := nativeExchange(t, app, id, verifier); rec.Code != http.StatusAccepted {
+ t.Fatalf("exchange before approval = %d, want 202", rec.Code)
+ }
+ if rec := nativeApprove(t, app, cookies, id); rec.Code != http.StatusOK || !strings.Contains(rec.Body.String(), "is signed in") {
+ t.Fatalf("approval = %d: %s", rec.Code, rec.Body.String())
+ }
+ if rec := nativeExchange(t, app, id, randomProof(t)); rec.Code != http.StatusNotFound {
+ t.Fatalf("exchange with the wrong verifier = %d, want 404", rec.Code)
+ }
+ rec := nativeExchange(t, app, id, verifier)
+ if rec.Code != http.StatusOK {
+ t.Fatalf("exchange = %d: %s", rec.Code, rec.Body.String())
+ }
+ var minted struct{ Name, Value string }
+ if err := json.Unmarshal(rec.Body.Bytes(), &minted); err != nil {
+ t.Fatalf("exchange answered %q", rec.Body.String())
+ }
+ // The pre-move package names the cookie the app reads, and mints a
+ // new token rather than handing back the browser's.
+ if minted.Name != browser.Name {
+ t.Fatalf("exchange minted cookie %q; the app reads %q", minted.Name, browser.Name)
+ }
+ if minted.Value == "" || minted.Value == browser.Value {
+ t.Fatal("exchange did not mint a session of its own")
+ }
+ native := &http.Cookie{Name: minted.Name, Value: minted.Value}
+ if code := listWith(t, app, native); code != http.StatusOK {
+ t.Fatalf("the app refuses the session native minted: GET /sheets = %d", code)
+ }
+ // And it is the same person: their sheet is in the list.
+ list := do(t, app, as(httptest.NewRequest(http.MethodGet, "/sheets", nil), []*http.Cookie{native}))
+ if !strings.Contains(list.Body.String(), "Native probe") {
+ t.Fatal("the minted session is somebody else: the browser's sheet is not in its list")
+ }
+ // Spent: the same id never exchanges twice.
+ if rec := nativeExchange(t, app, id, verifier); rec.Code != http.StatusNotFound {
+ t.Fatalf("second exchange = %d, want 404", rec.Code)
+ }
+}
+
+func TestNativeSessionExpiryHolds(t *testing.T) {
+ app, cookies := nativeApp(t)
+ browser := sessionCookie(t, cookies)
+
+ // A browser session that has expired cannot approve.
+ id, _ := nativeRequest(t, app)
+ setSessionExpiry(t, app, browser.Value, time.Now().Add(-time.Minute))
+ if rec := nativeApprove(t, app, cookies, id); rec.Code == http.StatusOK && strings.Contains(rec.Body.String(), "is signed in") {
+ t.Fatal("an expired browser session approved a native sign-in")
+ }
+
+ // Approved while live, expired before the exchange: refused.
+ setSessionExpiry(t, app, browser.Value, time.Now().Add(time.Hour))
+ id, verifier := nativeRequest(t, app)
+ nativeApprove(t, app, cookies, id)
+ setSessionExpiry(t, app, browser.Value, time.Now().Add(-time.Minute))
+ if rec := nativeExchange(t, app, id, verifier); rec.Code != http.StatusUnauthorized {
+ t.Fatalf("exchange of an expired approval = %d, want 401", rec.Code)
+ }
+
+ // A minted session expires like any other.
+ setSessionExpiry(t, app, browser.Value, time.Now().Add(time.Hour))
+ id, verifier = nativeRequest(t, app)
+ nativeApprove(t, app, cookies, id)
+ rec := nativeExchange(t, app, id, verifier)
+ var minted struct{ Name, Value string }
+ if err := json.Unmarshal(rec.Body.Bytes(), &minted); err != nil {
+ t.Fatalf("exchange = %d %q", rec.Code, rec.Body.String())
+ }
+ native := &http.Cookie{Name: minted.Name, Value: minted.Value}
+ if code := listWith(t, app, native); code != http.StatusOK {
+ t.Fatalf("live minted session: GET /sheets = %d", code)
+ }
+ setSessionExpiry(t, app, minted.Value, time.Now().Add(-time.Minute))
+ if code := listWith(t, app, native); code == http.StatusOK {
+ t.Fatal("the app still accepts a minted session past its expiry")
+ }
+}
+
+func TestNativeSessionRevocationHolds(t *testing.T) {
+ app, cookies := nativeApp(t)
+ browser := sessionCookie(t, cookies)
+
+ // Signing the browser out between approval and exchange refuses it.
+ id, verifier := nativeRequest(t, app)
+ nativeApprove(t, app, cookies, id)
+ if res := app.db.Exec(`DELETE FROM sessions WHERE token_hash = ?`, sessions.HashToken(browser.Value)); res.Error != nil || res.RowsAffected != 1 {
+ t.Fatalf("revoke browser session: %v", res.Error)
+ }
+ if rec := nativeExchange(t, app, id, verifier); rec.Code != http.StatusUnauthorized {
+ t.Fatalf("exchange after the browser signed out = %d, want 401", rec.Code)
+ }
+
+ // The app signing out a minted session (the app's own sessions
+ // package, deleting a row the pre-move package wrote) ends it, and
+ // leaves the browser's alone.
+ app, cookies = nativeApp(t)
+ browser = sessionCookie(t, cookies)
+ id, verifier = nativeRequest(t, app)
+ nativeApprove(t, app, cookies, id)
+ var minted struct{ Name, Value string }
+ if rec := nativeExchange(t, app, id, verifier); json.Unmarshal(rec.Body.Bytes(), &minted) != nil {
+ t.Fatalf("exchange = %d %q", rec.Code, rec.Body.String())
+ }
+ native := &http.Cookie{Name: minted.Name, Value: minted.Value}
+ out := httptest.NewRequest(http.MethodPost, "/signout", nil)
+ out.Header.Set("Origin", testOrigin)
+ if rec := do(t, app, as(out, []*http.Cookie{native})); rec.Code >= 400 {
+ t.Fatalf("POST /signout with the minted session = %d", rec.Code)
+ }
+ if code := listWith(t, app, native); code == http.StatusOK {
+ t.Fatal("a signed-out minted session still reaches /sheets")
+ }
+ if code := listWith(t, app, browser); code != http.StatusOK {
+ t.Fatalf("signing native out ended the browser's session too: GET /sheets = %d", code)
+ }
+}