Release 1.7.1: download-only updates and remove netsh/startup network probes for AV FPs.

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

internal/update/update.go

@@ -9,7 +9,6 @@ import (
 	"io"
 	"net/http"
 	"os"
-	"path/filepath"
 	"runtime"
 	"strconv"
 	"strings"
@@ -17,7 +16,7 @@ import (
 )
 
 // CurrentVersion is the shipped client version.
-const CurrentVersion = "1.7.0"
+const CurrentVersion = "1.7.1"
 
 // 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"
@@ -226,51 +225,3 @@ func fileSHA256(path string) (string, error) {
 	}
 	return hex.EncodeToString(h.Sum(nil)), nil
 }
-
-func prepareDownload(ctx context.Context, manifestURL string) (latest, url, sha, exePath, tmpPath string, err error) {
-	st, err := Check(ctx, manifestURL)
-	if err != nil {
-		return "", "", "", "", "", err
-	}
-	if !st.Available {
-		if st.Error != "" {
-			return "", "", "", "", "", fmt.Errorf("%s", st.Error)
-		}
-		return "", "", "", "", "", fmt.Errorf("обновление не найдено")
-	}
-	if !allowedDownloadURL(st.URL) {
-		return "", "", "", "", "", fmt.Errorf("URL обновления должен быть на git.evilfox.cc или files.de4ima.uk")
-	}
-	exe, err := os.Executable()
-	if err != nil {
-		return "", "", "", "", "", err
-	}
-	exe, err = filepath.Abs(exe)
-	if err != nil {
-		return "", "", "", "", "", err
-	}
-	tmp := exe + ".new"
-	if err := downloadFile(ctx, st.URL, tmp); err != nil {
-		return "", "", "", "", "", err
-	}
-	wantSHA := st.SHA256
-	if wantSHA == "" {
-		if man, err := fetchManifest(ctx, manifestURL); err == nil {
-			if _, sha2, ok := man.AssetFor(PlatformKey()); ok {
-				wantSHA = sha2
-			}
-		}
-	}
-	if wantSHA != "" {
-		sum, err := fileSHA256(tmp)
-		if err != nil {
-			_ = os.Remove(tmp)
-			return "", "", "", "", "", err
-		}
-		if !strings.EqualFold(sum, wantSHA) {
-			_ = os.Remove(tmp)
-			return "", "", "", "", "", fmt.Errorf("checksum mismatch")
-		}
-	}
-	return st.Latest, st.URL, wantSHA, exe, tmp, nil
-}