Release 1.3.1: fix hy2 UDP ping and shop link open.

Co-authored-by: Cursor <cursoragent@cursor.com>

cmd/vpnapp/main_windows.go

@@ -360,17 +360,45 @@ func (a *app) autoCheckUpdate() {
 
 func openURL(raw string) error {
 	raw = strings.TrimSpace(raw)
-	switch raw {
+	if raw == "" {
-	case "https://evilfox.win/", "https://evilfox.win", "http://evilfox.win/", "http://evilfox.win":
+		return fmt.Errorf("пустая ссылка")
+	}
+	lower := strings.ToLower(raw)
+	switch {
+	case lower == "https://evilfox.win/" || lower == "https://evilfox.win" ||
+		lower == "http://evilfox.win/" || lower == "http://evilfox.win":
 		raw = "https://evilfox.win/"
+	case strings.HasPrefix(lower, "https://evilfox.win/") || strings.HasPrefix(lower, "http://evilfox.win/"):
+		// allow shop deep-links on evilfox.win only
 	default:
 		return fmt.Errorf("разрешена только ссылка evilfox.win")
 	}
-	cmd := exec.Command("rundll32", "url.dll,FileProtocolHandler", raw)
+	if err := shellOpen(raw); err == nil {
+		return nil
+	}
+	// Fallbacks when ShellExecute is blocked by policy.
+	cmd := exec.Command("cmd", "/c", "start", "", raw)
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	if err := cmd.Start(); err == nil {
+		return nil
+	}
+	cmd = exec.Command("rundll32", "url.dll,FileProtocolHandler", raw)
 	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
 	return cmd.Start()
 }
 
+func shellOpen(raw string) error {
+	verb, err := windows.UTF16PtrFromString("open")
+	if err != nil {
+		return err
+	}
+	file, err := windows.UTF16PtrFromString(raw)
+	if err != nil {
+		return err
+	}
+	return windows.ShellExecute(0, verb, file, nil, nil, windows.SW_SHOWNORMAL)
+}
+
 func applyWindowIcon(hwnd unsafe.Pointer) {
 	ico := findIconPath()
 	if ico == "" || hwnd == nil {

dist/navis-release/update.json

@@ -1,10 +1,10 @@
 {
-  "version": "1.3.0",
+  "version": "1.3.1",
-  "notes": "Hysteria 2: BBR/Brutal, Salamander/Gecko, SNI-маскировка; URL подписки для импорта профилей",
+  "notes": "Фикс пинга Hysteria2 (UDP вместо TCP) и открытие ссылки evilfox.win",
   "platform": "windows-amd64",
   "os": "windows",
   "arch": "amd64",
   "url": "https://git.evilfox.cc/test2/navi/raw/branch/main/dist/navis-release/Navis.exe",
-  "sha256": "9dabde753f85c7dab9574582fc9e28e45e2aed26646f068c9e7057872063c063",
+  "sha256": "88ddd38b0324979cae882c6cb0b8e4298c98b88547e72649587106425201e09e",
   "mandatory": false
 }

dist/update.json

@@ -1,10 +1,10 @@
 {
-  "version": "1.3.0",
+  "version": "1.3.1",
-  "notes": "Hysteria 2: BBR/Brutal, Salamander/Gecko, SNI-маскировка; URL подписки для импорта профилей",
+  "notes": "Фикс пинга Hysteria2 (UDP вместо TCP) и открытие ссылки evilfox.win",
   "platform": "windows-amd64",
   "os": "windows",
   "arch": "amd64",
   "url": "https://git.evilfox.cc/test2/navi/raw/branch/main/dist/navis-release/Navis.exe",
-  "sha256": "9dabde753f85c7dab9574582fc9e28e45e2aed26646f068c9e7057872063c063",
+  "sha256": "88ddd38b0324979cae882c6cb0b8e4298c98b88547e72649587106425201e09e",
   "mandatory": false
 }

internal/appui/index.html

@@ -205,12 +205,18 @@
     }
     .shop-link {
       display: block;
+      width: 100%;
       margin-top: 8px;
+      padding: 0;
+      border: 0;
+      background: transparent;
       text-align: center;
+      font: inherit;
       font-size: .78rem;
       color: var(--accent);
       text-decoration: none;
       font-weight: 600;
+      cursor: pointer;
     }
     .shop-link:hover { text-decoration: underline; }
 
@@ -414,7 +420,7 @@
       <h3>Безопасное подключение</h3>
       <p>На любом устройстве — защита данных, стабильность и приватность. Демо-ключ от 30₽.</p>
       <button class="action primary" id="shopBtn" type="button">Купить на evilfox.win</button>
-      <a class="shop-link" id="shopLink" href="https://evilfox.win/" rel="noopener">https://evilfox.win/</a>
+      <button class="shop-link" id="shopLink" type="button">https://evilfox.win/</button>
     </section>
     <p class="ver" id="verLabel">Navis</p>
   </main>
@@ -722,11 +728,16 @@
     }));
 
     async function openShop(e) {
-      if (e) e.preventDefault();
+      if (e) {
+        e.preventDefault();
+        e.stopPropagation();
+      }
       try {
+        setMeta("Открываю evilfox.win…");
         await openURL(SHOP_URL);
+        setMeta("Открыто в браузере", "ok");
       } catch (err) {
-        setMeta(String(err), "err");
+        setMeta("Не удалось открыть ссылку: " + String(err), "err");
       }
     }
     shopBtn.addEventListener("click", openShop);

internal/netcheck/ping.go

@@ -12,7 +12,7 @@ import (
 	"vpnclient/internal/protocols/hysteria2"
 )
 
-// Result is a TCP reachability measurement to a proxy host.
+// Result is a reachability measurement to a proxy host.
 type Result struct {
 	Name  string `json:"name"`
 	Host  string `json:"host"`
@@ -22,12 +22,13 @@ type Result struct {
 	Error string `json:"error,omitempty"`
 }
 
-// PingProxyURI measures TCP connect time to the host in a share/proxy URI.
+// PingProxyURI measures connect time to the host in a share/proxy URI.
 func PingProxyURI(ctx context.Context, name, proxyURI string) Result {
 	return PingProfile(ctx, name, "", proxyURI)
 }
 
 // PingProfile pings using protocol hints when available.
+// Naive uses TCP; Hysteria 2 uses UDP (QUIC) — TCP would always look "refused".
 func PingProfile(ctx context.Context, name string, proto config.Protocol, proxyURI string) Result {
 	res := Result{Name: name}
 	if strings.TrimSpace(proxyURI) == "" {
@@ -35,8 +36,9 @@ func PingProfile(ctx context.Context, name string, proto config.Protocol, proxyU
 		return res
 	}
 
+	hy2 := proto == config.ProtocolHysteria2 || hysteria2.Detect(proxyURI)
 	var host, port string
-	if proto == config.ProtocolHysteria2 || hysteria2.Detect(proxyURI) {
+	if hy2 {
 		h, p, err := hysteria2.HostPort(proxyURI)
 		if err != nil {
 			res.Error = err.Error()
@@ -49,7 +51,6 @@ func PingProfile(ctx context.Context, name string, proto config.Protocol, proxyU
 			res.Error = err.Error()
 			return res
 		}
-		// Parse host from normalized URI without importing net/url dance twice
 		rest := normalized
 		if i := strings.Index(rest, "://"); i >= 0 {
 			rest = rest[i+3:]
@@ -75,15 +76,76 @@ func PingProfile(ctx context.Context, name string, proto config.Protocol, proxyU
 		return res
 	}
 
-	d := net.Dialer{Timeout: 4 * time.Second}
 	start := time.Now()
-	conn, err := d.DialContext(ctx, "tcp", net.JoinHostPort(host, port))
+	var err error
+	if hy2 {
+		err = probeUDP(ctx, host, port)
+	} else {
+		err = probeTCP(ctx, host, port)
+	}
 	if err != nil {
-		res.Error = fmt.Sprintf("недоступен: %v", err)
+		res.Error = friendlyDialError(err, hy2)
 		return res
 	}
-	_ = conn.Close()
 	res.Ms = time.Since(start).Milliseconds()
 	res.OK = true
 	return res
 }
+
+func probeTCP(ctx context.Context, host, port string) error {
+	d := net.Dialer{Timeout: 4 * time.Second}
+	conn, err := d.DialContext(ctx, "tcp", net.JoinHostPort(host, port))
+	if err != nil {
+		return err
+	}
+	_ = conn.Close()
+	return nil
+}
+
+func probeUDP(ctx context.Context, host, port string) error {
+	d := net.Dialer{Timeout: 4 * time.Second}
+	conn, err := d.DialContext(ctx, "udp", net.JoinHostPort(host, port))
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	deadline := time.Now().Add(1500 * time.Millisecond)
+	if dl, ok := ctx.Deadline(); ok && dl.Before(deadline) {
+		deadline = dl
+	}
+	_ = conn.SetDeadline(deadline)
+
+	// Any datagram is enough to exercise the UDP path; QUIC rarely answers a bare probe.
+	if _, err := conn.Write([]byte{0}); err != nil {
+		return err
+	}
+	buf := make([]byte, 64)
+	_, err = conn.Read(buf)
+	if err == nil {
+		return nil
+	}
+	if ne, ok := err.(net.Error); ok && ne.Timeout() {
+		// No ICMP unreachable → port is typically open or filtered; treat as reachable for UI ping.
+		return nil
+	}
+	return err
+}
+
+func friendlyDialError(err error, hy2 bool) string {
+	msg := err.Error()
+	lower := strings.ToLower(msg)
+	switch {
+	case strings.Contains(lower, "refused"):
+		if hy2 {
+			return "UDP порт недоступен (connection refused)"
+		}
+		return "порт закрыт (connection refused)"
+	case strings.Contains(lower, "timeout") || strings.Contains(lower, "timed out"):
+		return "таймаут"
+	case strings.Contains(lower, "no such host"):
+		return "DNS: хост не найден"
+	default:
+		return fmt.Sprintf("недоступен: %v", err)
+	}
+}

internal/netcheck/ping_test.go

@@ -0,0 +1,33 @@
+package netcheck
+
+import (
+	"context"
+	"strings"
+	"testing"
+	"time"
+
+	"vpnclient/internal/config"
+)
+
+func TestFriendlyDialError(t *testing.T) {
+	err := &netError{s: "dial tcp 1.2.3.4:22514: connectex: No connection could be made because the target machine actively refused it."}
+	got := friendlyDialError(err, true)
+	if !strings.Contains(got, "UDP") {
+		t.Fatalf("got %q", got)
+	}
+}
+
+type netError struct{ s string }
+
+func (e *netError) Error() string   { return e.s }
+func (e *netError) Timeout() bool   { return false }
+func (e *netError) Temporary() bool { return false }
+
+func TestPingProfileEmpty(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+	r := PingProfile(ctx, "x", config.ProtocolHysteria2, "")
+	if r.OK || r.Error == "" {
+		t.Fatalf("%+v", r)
+	}
+}

internal/subscription/fetch.go

@@ -39,7 +39,7 @@ func Fetch(ctx context.Context, rawURL string) ([]Item, error) {
 	if err != nil {
 		return nil, err
 	}
-	req.Header.Set("User-Agent", "Navis/1.3.0")
+	req.Header.Set("User-Agent", "Navis/1.3.1")
 	client := &http.Client{Timeout: 45 * time.Second}
 	resp, err := client.Do(req)
 	if err != nil {

internal/update/update.go

@@ -18,7 +18,7 @@ import (
 )
 
 // CurrentVersion is the shipped client version.
-const CurrentVersion = "1.3.0"
+const CurrentVersion = "1.3.1"
 
 // DefaultManifestURL is the update feed (hosted in the project git repo).
 const DefaultManifestURL = "https://git.evilfox.cc/test2/navi/raw/branch/main/dist/update.json"

server/update.json

@@ -1,10 +1,10 @@
 {
-  "version": "1.3.0",
+  "version": "1.3.1",
-  "notes": "Hysteria 2: BBR/Brutal, Salamander/Gecko, SNI-маскировка; URL подписки для импорта профилей",
+  "notes": "Фикс пинга Hysteria2 (UDP вместо TCP) и открытие ссылки evilfox.win",
   "platform": "windows-amd64",
   "os": "windows",
   "arch": "amd64",
   "url": "https://git.evilfox.cc/test2/navi/raw/branch/main/dist/navis-release/Navis.exe",
-  "sha256": "9dabde753f85c7dab9574582fc9e28e45e2aed26646f068c9e7057872063c063",
+  "sha256": "88ddd38b0324979cae882c6cb0b8e4298c98b88547e72649587106425201e09e",
   "mandatory": false
 }

versioninfo.json

@@ -1,7 +1,7 @@
 {
   "FixedFileInfo": {
-    "FileVersion": { "Major": 1, "Minor": 3, "Patch": 0, "Build": 0 },
+    "FileVersion": { "Major": 1, "Minor": 3, "Patch": 1, "Build": 0 },
-    "ProductVersion": { "Major": 1, "Minor": 3, "Patch": 0, "Build": 0 },
+    "ProductVersion": { "Major": 1, "Minor": 3, "Patch": 1, "Build": 0 },
     "FileFlagsMask": "3f",
     "FileFlags": "00",
     "FileOS": "40004",
@@ -11,11 +11,11 @@
   "StringFileInfo": {
     "CompanyName": "Navis",
     "FileDescription": "Navis — NaiveProxy / Hysteria 2 client for Windows",
-    "FileVersion": "1.3.0.0",
+    "FileVersion": "1.3.1.0",
     "InternalName": "Navis",
     "OriginalFilename": "Navis.exe",
     "ProductName": "Navis",
-    "ProductVersion": "1.3.0.0"
+    "ProductVersion": "1.3.1.0"
   },
   "VarFileInfo": {
     "Translation": {