PrintToVeraeTimeStamp/internal/netprint/airdrop_test.go

package netprint

import (
	"context"
	"encoding/json"
	"errors"
	"io"
	"net/http"
	"os"
	"path/filepath"
	"strings"
	"sync"
	"testing"
	"time"

	"github.com/VeraeLLC/PrintToVeraeTimeStamp/internal/job"
)

func TestAirDropDefaultsOffAndMenu(t *testing.T) {
	if Defaults().AirDropOn() {
		t.Fatal("AirDrop is opt-in")
	}
	if !strings.Contains(string(ExampleJSON("/tmp")), `"airDropEnabled": false`) {
		t.Fatal("sample config should show the switch off")
	}
	st := Status{Running: true, SupportsAirDrop: true, AirDropEnabled: true, Advertise: true}
	var sawDrop, sawAdv bool
	for _, e := range BuildMenu(st) {
		if e.Kind == "airdrop" {
			sawDrop = e.Checked && e.Enabled && e.Label == "AirDrop stamped PDF after each job"
		}
		if e.Kind == "advertise" {
			sawAdv = e.Checked && e.Label == "Advertise on the network"
		}
	}
	if !sawDrop || !sawAdv {
		t.Fatalf("drop %v advertise %v", sawDrop, sawAdv)
	}
	plain := BuildMenu(Status{Running: true})
	for _, e := range plain {
		if e.Kind == "airdrop" || e.Kind == "advertise" {
			t.Fatal("AirDrop controls are macOS only")
		}
	}
	line := discoveryLine(Status{Running: true, MDNSAdvertising: true, MDNSMode: "dns-sd", MDNSDetail: "DNSServiceRegister Verae Timestamp._ipp._tcp.local regtype _ipp._tcp,_universal,_print port 631; _verae._tcp"})
	if line != "Discovery — advertised (Bonjour _universal and _print)" {
		t.Fatal(line)
	}
}

func TestAirDropAgainUsesSavedFiles(t *testing.T) {
	clearAirDrop()
	t.Cleanup(clearAirDrop)
	prev := shareAirDropOffer
	var got AirDropOffer
	shareAirDropOffer = func(o AirDropOffer) error {
		got = o
		return nil
	}
	t.Cleanup(func() { shareAirDropOffer = prev })
	rememberAirDrop(AirDropOffer{ReceiptID: "QmReceipt", PDF: "certificate.pdf", JSON: "receipt.json"})
	items := withAirDropAgain(BuildMenu(Status{Running: true}))
	var item MenuEntry
	for _, e := range items {
		if e.Kind == "airdrop-again" {
			item = e
		}
	}
	if item.Label != airDropAgainTitle+" · QmReceipt" {
		t.Fatal(item.Label)
	}
	if err := Dispatch(Status{Running: true}, item); err != nil {
		t.Fatal(err)
	}
	if got.PDF != "certificate.pdf" || got.JSON != "receipt.json" || got.ReceiptID != "QmReceipt" {
		t.Fatalf("%+v", got)
	}
}

func TestStampJobTellsMenuBarNotTheDaemon(t *testing.T) {
	cfg, path := testConfig(t)
	on := true
	cfg.AirDropEnabled = &on
	s, err := Start(cfg, path, func(pdf, title, user string) (job.Result, error) {
		dir := filepath.Dir(pdf)
		cert := filepath.Join(dir, "certificate.pdf")
		js := filepath.Join(dir, "scan.verae.json")
		if err := os.WriteFile(cert, []byte("%PDF-cert"), 0o600); err != nil {
			return job.Result{}, err
		}
		if err := os.WriteFile(js, []byte("{\"receipt_id\":\"QmAir\"}\n"), 0o600); err != nil {
			return job.Result{}, err
		}
		return job.Result{SHA256: strings.Repeat("ab", 32), ReceiptID: "QmAir", CertificatePDF: cert, ReceiptJSON: js, OriginalPDF: pdf}, nil
	}, &fakeCtrl{})
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() {
		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
		defer cancel()
		_ = s.Shutdown(ctx)
	})

	prev := shareAirDropOffer
	shareAirDropOffer = func(AirDropOffer) error {
		t.Error("daemon called AirDrop")
		return nil
	}
	defer func() { shareAirDropOffer = prev }()

	var mu sync.Mutex
	var got AirDropOffer
	var notes int
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	dir := t.TempDir()
	go watchAirDrop(ctx, s.ControlURL(), dir, func(o AirDropOffer) error {
		mu.Lock()
		got = o
		mu.Unlock()
		return nil
	}, func(AirDropOffer) { mu.Lock(); notes++; mu.Unlock() })

	id, err := s.store.AllocateID()
	if err != nil {
		t.Fatal(err)
	}
	ProcessJob(s.store, s.snapshot(), nil, id, "application/pdf", "Note", "stamp", []byte("%PDF-1.4 note"), s.stamp, nil, s.afterJob)

	deadline := time.Now().Add(3 * time.Second)
	for time.Now().Before(deadline) {
		mu.Lock()
		pdf := got.PDF
		mu.Unlock()
		if pdf != "" {
			break
		}
		time.Sleep(20 * time.Millisecond)
	}
	mu.Lock()
	offer := got
	n := notes
	mu.Unlock()
	if offer.ReceiptID != "QmAir" || n != 1 {
		t.Fatalf("offer %+v notes %d", offer, n)
	}
	b, err := os.ReadFile(offer.PDF)
	if err != nil || string(b) != "%PDF-cert" {
		t.Fatalf("pdf %q %v", b, err)
	}
	jb, err := os.ReadFile(offer.JSON)
	if err != nil || !strings.Contains(string(jb), "QmAir") {
		t.Fatalf("json %q %v", jb, err)
	}
	if err := Dispatch(Status{Running: true, AirDropEnabled: true, ControlURL: s.ControlURL()}, MenuEntry{Kind: "airdrop", ID: idAirDrop}); err != nil {
		t.Fatal(err)
	}
	st, err := NewClient(cfg.ControlPort).Status()
	if err != nil || st.AirDropEnabled {
		t.Fatalf("toggle %+v %v", st.AirDropEnabled, err)
	}

	acked := false
	deadline = time.Now().Add(2 * time.Second)
	for time.Now().Before(deadline) {
		body := readEvents(t, stringsTrimRight(s.ControlURL())+"/api/v1/events?after=0")
		if strings.Contains(body, ": ok") && !strings.Contains(body, "QmAir") {
			acked = true
			break
		}
		time.Sleep(30 * time.Millisecond)
	}
	if !acked {
		t.Fatal("acked job was still replayed")
	}
}

func readEvents(t *testing.T, url string) string {
	t.Helper()
	ctx, cancel := context.WithTimeout(context.Background(), 250*time.Millisecond)
	defer cancel()
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
	if err != nil {
		t.Fatal(err)
	}
	res, err := http.DefaultClient.Do(req)
	if err != nil {
		return ""
	}
	defer res.Body.Close()
	b, _ := io.ReadAll(res.Body)
	return string(b)
}

func stringsTrimRight(s string) string {
	return strings.TrimRight(s, "/")
}

func TestDarwinDNSRegistersAirPrintSubtypes(t *testing.T) {
	if dnsPort(631) != 0x7702 {
		t.Fatalf("port %x", dnsPort(631))
	}
	svc := sampleService()
	svc.StampURL = "http://192.168.1.184:631/api/stamp"
	insts := serviceToDarwinDNS(svc)
	if len(insts) != 2 {
		t.Fatal(len(insts))
	}
	ipp, verae := insts[0], insts[1]
	if ipp.RegType != "_ipp._tcp,_universal,_print" || ipp.Name != "Verae Timestamp" || ipp.InstanceName != "Verae Timestamp._ipp._tcp.local" {
		t.Fatalf("ipp %+v", ipp)
	}
	if strings.Contains(ipp.InstanceName, "_sub") || strings.Contains(ipp.RegType, "_sub") || ipp.Host != "" {
		t.Fatalf("subtype target or host %+v", ipp)
	}
	if verae.RegType != "_verae._tcp" || verae.InstanceName != "Verae Timestamp._verae._tcp.local" {
		t.Fatalf("verae %+v", verae)
	}
	if !strings.Contains(strings.Join(verae.TXT, "\n"), "path=/api/stamp") || !strings.Contains(strings.Join(verae.TXT, "\n"), "url=http://192.168.1.184:631/api/stamp") {
		t.Fatal(verae.TXT)
	}

	pkt := &fakePkt{}
	prev := listenMDNSFn
	called := 0
	listenMDNSFn = func() (mdnsConn, error) {
		called++
		return pkt, nil
	}
	t.Cleanup(func() { listenMDNSFn = prev })
	api := &fakeDNS{}
	ctx, cancel := context.WithCancel(context.Background())
	done := make(chan error, 1)
	var mu sync.Mutex
	var report mdnsReport
	go func() {
		done <- advertiseForOS("darwin", ctx, func() Service { return svc }, api, func(r mdnsReport) {
			mu.Lock()
			report = r
			mu.Unlock()
		})
	}()
	deadline := time.Now().Add(2 * time.Second)
	for time.Now().Before(deadline) && api.count() < 2 {
		time.Sleep(10 * time.Millisecond)
	}
	if api.count() != 2 || called != 0 {
		t.Fatalf("registered %d udp calls %d names %v", api.count(), called, api.names())
	}
	cancel()
	if err := <-done; err != nil {
		t.Fatal(err)
	}
	mu.Lock()
	detail := report.Detail
	mu.Unlock()
	if report.Mode != "dns-sd" || !strings.Contains(detail, "_ipp._tcp,_universal,_print") || !strings.Contains(detail, "_verae._tcp") || strings.Contains(detail, "PTR _ipp._tcp") {
		t.Fatalf("%+v", report)
	}
	if len(api.deregistered) != 2 {
		t.Fatalf("deregistered %d", len(api.deregistered))
	}
}

func TestDarwinDNSFailureUsesFullUDP(t *testing.T) {
	pkt := &fakePkt{}
	prev := listenMDNSFn
	listenMDNSFn = func() (mdnsConn, error) { return pkt, nil }
	t.Cleanup(func() { listenMDNSFn = prev })
	api := &fakeDNS{err: errors.New("dns_sd unavailable")}
	ctx, cancel := context.WithCancel(context.Background())
	done := make(chan error, 1)
	go func() {
		done <- advertiseForOS("darwin", ctx, func() Service { return sampleService() }, api, nil)
	}()
	deadline := time.Now().Add(2 * time.Second)
	for time.Now().Before(deadline) && pkt.count() < 1 {
		time.Sleep(10 * time.Millisecond)
	}
	if pkt.count() < 1 {
		t.Fatal("no UDP announcement")
	}
	if err := assertPrimaryPTRs(pkt.packet(0), "Verae Timestamp"); err != nil {
		t.Fatal(err)
	}
	cancel()
	if err := <-done; err != nil {
		t.Fatal(err)
	}
}

func TestMacAirDropAndPackageSources(t *testing.T) {
	checks := []struct {
		file string
		need []string
	}{
		{"airdrop_darwin.go", []string{"NSSharingService", nsAirDropService, "performWithItems:", airDropAgainTitle, "UNUserNotificationCenter"}},
		{"../../platform/macos/airdrop/main.swift", []string{"NSSharingService(named: .sendViaAirDrop)", "perform(withItems:"}},
		{"service_darwin.go", []string{"/Library/LaunchAgents/com.verae.netprint.tray.plist", "LimitLoadToSessionType", "Aqua", "netprint"}},
		{"../../platform/macos/pkg/build-netprint-pkg.sh", []string{"VeraeNetPrint-macos-arm64-", "LaunchAgents", "LaunchDaemons"}},
		{"../../docs/network-printer.md", []string{"right-click", "sudo installer -pkg", "Local Network", "not signed"}},
		{"dnsservice_darwin.go", []string{"DNSServiceRegister", "DNSServiceProcessResult", "dnsPort"}},
		{"advertise_darwin.go", []string{`advertiseForOS("darwin"`}},
	}
	for _, c := range checks {
		b, err := os.ReadFile(c.file)
		if err != nil {
			t.Fatal(err)
		}
		text := string(b)
		for _, needle := range c.need {
			if !strings.Contains(text, needle) {
				t.Fatalf("%s missing %s", c.file, needle)
			}
		}
	}
	// The daemon publishes an event. It does not call the share sheet.
	b, err := os.ReadFile("events.go")
	if err != nil {
		t.Fatal(err)
	}
	if strings.Contains(string(b), "NSSharingService") || strings.Contains(string(b), "shareAirDrop") {
		t.Fatal("job events must stay in the daemon")
	}
}

func TestAirDropSettingRoundTrip(t *testing.T) {
	cfg, path := testConfig(t)
	s, err := Start(cfg, path, stampMock(t), &fakeCtrl{})
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() {
		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
		defer cancel()
		_ = s.Shutdown(ctx)
	})
	c := NewClient(cfg.ControlPort)
	if err := c.SetAirDropEnabled(true); err != nil {
		t.Fatal(err)
	}
	st, err := c.Status()
	if err != nil || !st.AirDropEnabled || st.Name != "Verae Timestamp" {
		t.Fatalf("%+v %v", st, err)
	}
	saved, err := os.ReadFile(path)
	if err != nil {
		t.Fatal(err)
	}
	if !strings.Contains(string(saved), `"airDropEnabled": true`) {
		t.Fatal(string(saved))
	}
	var parsed Config
	if err := json.Unmarshal(saved, &parsed); err != nil {
		t.Fatal(err)
	}
	if !parsed.AirDropOn() || parsed.Name != "Verae Timestamp" {
		t.Fatalf("%+v", parsed)
	}
}