| 1 | //go:build browser |
| 2 | |
| 3 | package calendartest |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "io" |
| 8 | "log/slog" |
| 9 | "net" |
| 10 | "net/http" |
| 11 | "net/http/cookiejar" |
| 12 | "net/url" |
| 13 | "os/exec" |
| 14 | "path/filepath" |
| 15 | "runtime" |
| 16 | "strings" |
| 17 | "testing" |
| 18 | "time" |
| 19 | |
| 20 | calendar "amadan.net/oficina/calendar/internal/calendar" |
| 21 | ) |
| 22 | |
| 23 | // TestQuickAddInARealBrowser drives the quick-add box in Chromium, with |
| 24 | // script and then without it. |
| 25 | // |
| 26 | // Go starts the app and signs in — the magic-link flow needs the mail |
| 27 | // recorder, which only this side can read — and hands node a live |
| 28 | // origin and a session cookie. Playwright rather than chromedp: in this |
| 29 | // environment chromedp starts a browser and parks at about:blank until |
| 30 | // the Go test times out, so the existing browser walk cannot run at |
| 31 | // all. A gate that cannot run is not a gate, and the house rule that |
| 32 | // one test must cross from a computed value to painted output was |
| 33 | // therefore unmet. This meets it. |
| 34 | func TestQuickAddInARealBrowser(t *testing.T) { |
| 35 | // The listener comes first, because the origin is load-bearing: |
| 36 | // csrf.Protect measures against it and the sign-in link is built |
| 37 | // from it, so the app cannot be constructed until the port is known. |
| 38 | ln, err := net.Listen("tcp", "127.0.0.1:0") |
| 39 | if err != nil { |
| 40 | t.Fatalf("listen: %v", err) |
| 41 | } |
| 42 | origin := "http://" + ln.Addr().String() |
| 43 | |
| 44 | app, err := calendar.New(calendar.Config{ |
| 45 | DBPath: filepath.Join(t.TempDir(), "calendar.db"), |
| 46 | Env: "development", |
| 47 | Origin: origin, |
| 48 | Logger: slog.New(slog.NewTextHandler(io.Discard, nil)), |
| 49 | }) |
| 50 | if err != nil { |
| 51 | t.Fatalf("calendar.New: %v", err) |
| 52 | } |
| 53 | t.Cleanup(func() { app.Close() }) |
| 54 | |
| 55 | srv := &http.Server{Handler: app.Handler()} |
| 56 | go func() { _ = srv.Serve(ln) }() |
| 57 | t.Cleanup(func() { _ = srv.Close() }) |
| 58 | |
| 59 | session := signInOverHTTP(t, app, origin, "someone@example.com") |
| 60 | |
| 61 | ctx, cancel := context.WithTimeout(context.Background(), 3*time.Minute) |
| 62 | defer cancel() |
| 63 | |
| 64 | cmd := exec.CommandContext(ctx, "node", "test/browser/quickadd.mjs", |
| 65 | origin, session.Name, session.Value) |
| 66 | cmd.Dir = repoRootForBrowser(t) |
| 67 | |
| 68 | out, err := cmd.CombinedOutput() |
| 69 | t.Logf("node:\n%s", out) |
| 70 | if err != nil { |
| 71 | t.Fatalf("the browser checks failed: %v", err) |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | // repoRootForBrowser finds the repository from this file's own path, never |
| 76 | // from the working directory: go test runs in the package directory and |
| 77 | // the node script is addressed from the root. |
| 78 | func repoRootForBrowser(t *testing.T) string { |
| 79 | t.Helper() |
| 80 | _, file, _, ok := runtime.Caller(0) |
| 81 | if !ok { |
| 82 | t.Fatal("runtime.Caller failed") |
| 83 | } |
| 84 | return filepath.Dir(filepath.Dir(filepath.Dir(file))) |
| 85 | } |
| 86 | |
| 87 | // signInOverHTTP drives the real sign-in against the LIVE listener. |
| 88 | // |
| 89 | // App.SignInForTest cannot be used here: it presents calendar.TestOrigin |
| 90 | // as its same-origin evidence, and this server is on a real loopback |
| 91 | // port, so csrf.Protect refuses the POST and no link is ever mailed. |
| 92 | // The failure reads as "no sign-in link was mailed", which names the |
| 93 | // symptom and not the cause — hence this comment. |
| 94 | func signInOverHTTP(t *testing.T, app *calendar.App, origin, address string) *http.Cookie { |
| 95 | t.Helper() |
| 96 | jar, err := cookiejar.New(nil) |
| 97 | if err != nil { |
| 98 | t.Fatalf("cookiejar: %v", err) |
| 99 | } |
| 100 | client := &http.Client{Jar: jar} |
| 101 | |
| 102 | form := url.Values{"address": {address}, "force": {"1"}} |
| 103 | req, err := http.NewRequest(http.MethodPost, origin+"/signin", |
| 104 | strings.NewReader(form.Encode())) |
| 105 | if err != nil { |
| 106 | t.Fatalf("build signin request: %v", err) |
| 107 | } |
| 108 | req.Header.Set("Content-Type", "application/x-www-form-urlencoded") |
| 109 | req.Header.Set("Origin", origin) |
| 110 | res, err := client.Do(req) |
| 111 | if err != nil { |
| 112 | t.Fatalf("post signin: %v", err) |
| 113 | } |
| 114 | res.Body.Close() |
| 115 | |
| 116 | body, err := app.LastMailForTest() |
| 117 | if err != nil || body == "" { |
| 118 | t.Fatalf("no sign-in link was mailed: %v", err) |
| 119 | } |
| 120 | link := magicLink(t, body) |
| 121 | |
| 122 | // Open the link — the confirm door, which spends nothing — and |
| 123 | // press its Sign in button, which does. |
| 124 | res, err = client.Get(origin + link) |
| 125 | if err != nil { |
| 126 | t.Fatalf("open the link: %v", err) |
| 127 | } |
| 128 | door, err := io.ReadAll(res.Body) |
| 129 | res.Body.Close() |
| 130 | if err != nil { |
| 131 | t.Fatalf("read the confirm door: %v", err) |
| 132 | } |
| 133 | action, token, ok := calendar.ConfirmFormForTest(string(door)) |
| 134 | if !ok { |
| 135 | t.Fatalf("opening the link drew no confirm door (status %d)", res.StatusCode) |
| 136 | } |
| 137 | req, err = http.NewRequest(http.MethodPost, origin+action, |
| 138 | strings.NewReader(url.Values{"token": {token}}.Encode())) |
| 139 | if err != nil { |
| 140 | t.Fatalf("build confirm request: %v", err) |
| 141 | } |
| 142 | req.Header.Set("Content-Type", "application/x-www-form-urlencoded") |
| 143 | req.Header.Set("Origin", origin) |
| 144 | req.Header.Set("Sec-Fetch-Site", "same-origin") |
| 145 | res, err = client.Do(req) |
| 146 | if err != nil { |
| 147 | t.Fatalf("confirm the link: %v", err) |
| 148 | } |
| 149 | res.Body.Close() |
| 150 | |
| 151 | u, _ := url.Parse(origin) |
| 152 | cookies := jar.Cookies(u) |
| 153 | if len(cookies) == 0 { |
| 154 | t.Fatal("following the sign-in link minted no cookie") |
| 155 | } |
| 156 | return cookies[0] |
| 157 | } |
| 158 | |
amadan