bastion 0.53.2

client-go/ui_preview_test.go

@@ -0,0 +1,80 @@
+package main
+
+// Renders the page and its assets to $UI_PREVIEW_DIR so a browser can screenshot
+// it. Skipped unless that is set, so it costs the suite nothing.
+//
+// It is kept rather than thrown away because the remaining phases of
+// the local UI are visual work, and "does this look right"
+// is a question no assertion answers. A fixed three-pairing fixture means two
+// screenshots are comparable.
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestRenderAPreview(t *testing.T) {
+	dir := os.Getenv("UI_PREVIEW_DIR")
+	if dir == "" {
+		t.Skip("UI_PREVIEW_DIR unset")
+	}
+	uiTestConfigDir(t)
+	d, _ := pairingsDir()
+	_ = os.MkdirAll(d, 0o700)
+	for _, p := range []struct{ host, addr, state string }{
+		{"259c83f46775ec66.host.privatae.ai", "127.0.0.1:7878", pairingActive},
+		{"8abb770bbfde71d0.host.privatae.ai", "127.0.0.1:7879", pairingActive},
+		{"99dab9c47d60edff.host.privatae.ai", "127.0.0.1:7880", pairingPending},
+	} {
+		b := []byte(`{"host_name":"` + p.host + `","listen_addr":"` + p.addr +
+			`","bastion_tunnel_ip":"fd00:9::a:1","state":"` + p.state +
+			`","first_seen":"2026-09-01T00:00:00Z"}`)
+		_ = os.WriteFile(filepath.Join(d, p.host+".json"), b, 0o600)
+	}
+
+	// One pending approval on the first host, so the preview carries the part of
+	// the page that is actually waiting on somebody.
+	dcn := filepath.Join(t.TempDir(), "dcn")
+	_ = os.MkdirAll(dcn, 0o700)
+	first := filepath.Join(d, "259c83f46775ec66.host.privatae.ai.json")
+	if b, err := os.ReadFile(first); err == nil {
+		s := strings.TrimSuffix(string(b), "}") + `,"dcn_dir":` + jsonQuote(dcn) + `}`
+		_ = os.WriteFile(first, []byte(s), 0o600)
+	}
+	_ = stepupSave(dcn, &stepupFile{
+		SecretB32: uiTestSecret, EnrolledAt: "2026-08-29T00:00:00Z", LastCounter: -1})
+	_ = requestsSave(dcn, map[string]stepupRequest{
+		"7f3a91c40de2bb18": {
+			Purpose: "dcn_store_grant|Documents|read",
+			Details: map[string]any{
+				"kind": "dcn_store_grant", "root": "~/Documents",
+				"mask": []any{"read", "index"}, "excludes": []any{".ssh", ".env"},
+				"sweep": "nightly", "ttl_days": float64(30),
+				"display_name": "Documents",
+			},
+			At: uiTestRecently(), State: "pending",
+		},
+	})
+
+	u, err := newUIServer("7877", "s")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = os.MkdirAll(dir, 0o755)
+	var sb strings.Builder
+	if err := u.tpl.ExecuteTemplate(&sb, "page.html", collectUIStatus()); err != nil {
+		t.Fatal(err)
+	}
+	html := strings.ReplaceAll(sb.String(), "/assets/", "./")
+	_ = os.WriteFile(filepath.Join(dir, "index.html"), []byte(html), 0o644)
+	for _, n := range []string{"app.css", "htmx.min.js"} {
+		b, err := uiStaticFS.ReadFile("uiassets/" + n)
+		if err != nil {
+			t.Fatal(err)
+		}
+		_ = os.WriteFile(filepath.Join(dir, n), b, 0o644)
+	}
+	t.Logf("wrote %s", dir)
+}