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039ea51ca6
Like the macOS About dialog. Change-Id: Ic27f091e66e29d5eebe4e195eda97ed331d748fd Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package version
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import (
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"os"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"tailscale.com/syncs"
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)
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// IsMobile reports whether this is a mobile client build.
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func IsMobile() bool {
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return runtime.GOOS == "android" || runtime.GOOS == "ios"
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}
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// OS returns runtime.GOOS, except instead of returning "darwin" it
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// returns "iOS" or "macOS".
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func OS() string {
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if runtime.GOOS == "ios" {
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return "iOS"
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}
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if runtime.GOOS == "darwin" {
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return "macOS"
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}
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return runtime.GOOS
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}
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// IsSandboxedMacOS reports whether this process is a sandboxed macOS
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// process (either the app or the extension). It is true for the Mac App Store
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// and macsys (System Extension) version on macOS, and false for
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// tailscaled-on-macOS.
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func IsSandboxedMacOS() bool {
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if runtime.GOOS != "darwin" {
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return false
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}
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if IsMacSysExt() {
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return true
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}
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exe, _ := os.Executable()
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return strings.HasSuffix(exe, "/Contents/MacOS/Tailscale") || strings.HasSuffix(exe, "/Contents/MacOS/IPNExtension")
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}
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var isMacSysExt syncs.AtomicValue[bool]
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// IsMacSysExt whether this binary is from the standalone "System
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// Extension" (a.k.a. "macsys") version of Tailscale for macOS.
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func IsMacSysExt() bool {
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if runtime.GOOS != "darwin" {
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return false
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}
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if b, ok := isMacSysExt.LoadOk(); ok {
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return b
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}
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exe, err := os.Executable()
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if err != nil {
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return false
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}
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v := filepath.Base(exe) == "io.tailscale.ipn.macsys.network-extension"
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isMacSysExt.Store(v)
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return v
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}
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// IsWindowsGUI reports whether the current process is the Windows GUI.
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func IsWindowsGUI() bool {
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if runtime.GOOS != "windows" {
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return false
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}
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exe, _ := os.Executable()
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exe = filepath.Base(exe)
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return strings.EqualFold(exe, "tailscale-ipn.exe") || strings.EqualFold(exe, "tailscale-ipn")
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}
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var (
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isUnstableOnce sync.Once
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isUnstableBuild bool
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)
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// IsUnstableBuild reports whether this is an unstable build.
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// That is, whether its minor version number is odd.
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func IsUnstableBuild() bool {
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isUnstableOnce.Do(initUnstable)
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return isUnstableBuild
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}
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func initUnstable() {
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_, rest, ok := strings.Cut(Short, ".")
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if !ok {
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return
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}
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minorStr, _, ok := strings.Cut(rest, ".")
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if !ok {
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return
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}
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minor, err := strconv.Atoi(minorStr)
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if err != nil {
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return
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}
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isUnstableBuild = minor%2 == 1
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}
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