cmd/tailscale/cli,clientupdate: extract new clientupdate package (#8827)
Extract the self-update logic from cmd/tailscale/cli into a standalone package that could be used from tailscaled later. Updates #6995 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>main
Andrew Lytvynov
3 years ago
committed by
GitHub
parent
53c722924b
commit
215480a022
@ -0,0 +1,892 @@ |
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package clientupdate implements tailscale client update for all supported
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// platforms. This package can be used from both tailscaled and tailscale
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// binaries.
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package clientupdate |
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import ( |
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"bufio" |
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"bytes" |
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"context" |
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"crypto/sha256" |
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"encoding/hex" |
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"encoding/json" |
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"errors" |
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"fmt" |
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"io" |
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"net/http" |
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"os" |
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"os/exec" |
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"path" |
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"path/filepath" |
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"regexp" |
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"runtime" |
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"strconv" |
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"strings" |
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"time" |
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"github.com/google/uuid" |
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"tailscale.com/net/tshttpproxy" |
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"tailscale.com/types/logger" |
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"tailscale.com/util/must" |
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"tailscale.com/util/winutil" |
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"tailscale.com/version" |
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"tailscale.com/version/distro" |
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) |
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const ( |
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CurrentTrack = "" |
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StableTrack = "stable" |
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UnstableTrack = "unstable" |
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) |
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func versionToTrack(v string) (string, error) { |
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_, rest, ok := strings.Cut(v, ".") |
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if !ok { |
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return "", fmt.Errorf("malformed version %q", v) |
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} |
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minorStr, _, ok := strings.Cut(rest, ".") |
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if !ok { |
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return "", fmt.Errorf("malformed version %q", v) |
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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 "", fmt.Errorf("malformed version %q", v) |
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} |
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if minor%2 == 0 { |
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return "stable", nil |
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} |
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return "unstable", nil |
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} |
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type updater struct { |
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UpdateArgs |
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track string |
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update func() error |
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} |
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// UpdateArgs contains arguments needed to run an update.
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type UpdateArgs struct { |
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// Version can be a specific version number or one of the predefined track
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// constants:
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//
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// - CurrentTrack will use the latest version from the same track as the
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// running binary
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// - StableTrack and UnstableTrack will use the latest versions of the
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// corresponding tracks
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//
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// Leaving this empty is the same as using CurrentTrack.
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Version string |
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// AppStore forces a local app store check, even if the current binary was
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// not installed via an app store.
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AppStore bool |
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// Logf is a logger for update progress messages.
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Logf logger.Logf |
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// Confirm is called when a new version is available and should return true
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// if this new version should be installed. When Confirm returns false, the
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// update is aborted.
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Confirm func(newVer string) bool |
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} |
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func (args UpdateArgs) validate() error { |
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if args.Confirm == nil { |
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return errors.New("missing Confirm callback in UpdateArgs") |
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} |
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if args.Logf == nil { |
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return errors.New("missing Logf callback in UpdateArgs") |
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} |
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return nil |
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} |
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// Update runs a single update attempt using the platform-specific mechanism.
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//
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// On Windows, this copies the calling binary and re-executes it to apply the
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// update. The calling binary should handle an "update" subcommand and call
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// this function again for the re-executed binary to proceed.
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func Update(args UpdateArgs) error { |
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if err := args.validate(); err != nil { |
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return err |
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} |
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up := &updater{ |
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UpdateArgs: args, |
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} |
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switch up.Version { |
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case StableTrack, UnstableTrack: |
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up.track = up.Version |
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case CurrentTrack: |
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if version.IsUnstableBuild() { |
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up.track = UnstableTrack |
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} else { |
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up.track = StableTrack |
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} |
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default: |
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var err error |
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up.track, err = versionToTrack(args.Version) |
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if err != nil { |
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return err |
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} |
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} |
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switch runtime.GOOS { |
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case "windows": |
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up.update = up.updateWindows |
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case "linux": |
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switch distro.Get() { |
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case distro.Synology: |
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up.update = up.updateSynology |
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case distro.Debian: // includes Ubuntu
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up.update = up.updateDebLike |
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case distro.Arch: |
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up.update = up.updateArchLike |
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case distro.Alpine: |
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up.update = up.updateAlpineLike |
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} |
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switch { |
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case haveExecutable("pacman"): |
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up.update = up.updateArchLike |
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case haveExecutable("apt-get"): // TODO(awly): add support for "apt"
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// The distro.Debian switch case above should catch most apt-based
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// systems, but add this fallback just in case.
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up.update = up.updateDebLike |
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case haveExecutable("dnf"): |
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up.update = up.updateFedoraLike("dnf") |
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case haveExecutable("yum"): |
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up.update = up.updateFedoraLike("yum") |
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case haveExecutable("apk"): |
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up.update = up.updateAlpineLike |
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} |
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case "darwin": |
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switch { |
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case !args.AppStore && !version.IsSandboxedMacOS(): |
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return errors.ErrUnsupported |
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case !args.AppStore && strings.HasSuffix(os.Getenv("HOME"), "/io.tailscale.ipn.macsys/Data"): |
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up.update = up.updateMacSys |
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default: |
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up.update = up.updateMacAppStore |
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} |
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case "freebsd": |
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up.update = up.updateFreeBSD |
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} |
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if up.update == nil { |
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return errors.ErrUnsupported |
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} |
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return up.update() |
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} |
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func (up *updater) confirm(ver string) bool { |
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if version.Short() == ver { |
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up.Logf("already running %v; no update needed", ver) |
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return false |
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} |
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if up.Confirm != nil { |
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return up.Confirm(ver) |
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} |
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return true |
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} |
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func (up *updater) updateSynology() error { |
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// TODO(bradfitz): detect, map GOARCH+CPU to the right Synology arch.
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// TODO(bradfitz): add pkgs.tailscale.com endpoint to get release info
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// TODO(bradfitz): require root/sudo
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// TODO(bradfitz): run /usr/syno/bin/synopkg install tailscale.spk
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return errors.ErrUnsupported |
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} |
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func (up *updater) updateDebLike() error { |
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ver, err := requestedTailscaleVersion(up.Version, up.track) |
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if err != nil { |
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return err |
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} |
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if !up.confirm(ver) { |
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return nil |
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} |
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if err := requireRoot(); err != nil { |
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return err |
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} |
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if updated, err := updateDebianAptSourcesList(up.track); err != nil { |
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return err |
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} else if updated { |
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up.Logf("Updated %s to use the %s track", aptSourcesFile, up.track) |
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} |
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cmd := exec.Command("apt-get", "update", |
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// Only update the tailscale repo, not the other ones, treating
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// the tailscale.list file as the main "sources.list" file.
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"-o", "Dir::Etc::SourceList=sources.list.d/tailscale.list", |
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// Disable the "sources.list.d" directory:
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"-o", "Dir::Etc::SourceParts=-", |
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// Don't forget about packages in the other repos just because
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// we're not updating them:
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"-o", "APT::Get::List-Cleanup=0", |
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) |
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cmd.Stdout = os.Stdout |
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cmd.Stderr = os.Stderr |
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if err := cmd.Run(); err != nil { |
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return err |
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} |
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cmd = exec.Command("apt-get", "install", "--yes", "--allow-downgrades", "tailscale="+ver) |
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cmd.Stdout = os.Stdout |
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cmd.Stderr = os.Stderr |
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if err := cmd.Run(); err != nil { |
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return err |
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} |
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return nil |
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} |
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const aptSourcesFile = "/etc/apt/sources.list.d/tailscale.list" |
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// updateDebianAptSourcesList updates the /etc/apt/sources.list.d/tailscale.list
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// file to make sure it has the provided track (stable or unstable) in it.
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//
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// If it already has the right track (including containing both stable and
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// unstable), it does nothing.
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func updateDebianAptSourcesList(dstTrack string) (rewrote bool, err error) { |
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was, err := os.ReadFile(aptSourcesFile) |
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if err != nil { |
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return false, err |
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} |
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newContent, err := updateDebianAptSourcesListBytes(was, dstTrack) |
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if err != nil { |
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return false, err |
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} |
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if bytes.Equal(was, newContent) { |
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return false, nil |
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} |
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return true, os.WriteFile(aptSourcesFile, newContent, 0644) |
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} |
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func updateDebianAptSourcesListBytes(was []byte, dstTrack string) (newContent []byte, err error) { |
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trackURLPrefix := []byte("https://pkgs.tailscale.com/" + dstTrack + "/") |
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var buf bytes.Buffer |
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var changes int |
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bs := bufio.NewScanner(bytes.NewReader(was)) |
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hadCorrect := false |
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commentLine := regexp.MustCompile(`^\s*\#`) |
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pkgsURL := regexp.MustCompile(`\bhttps://pkgs\.tailscale\.com/((un)?stable)/`) |
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for bs.Scan() { |
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line := bs.Bytes() |
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if !commentLine.Match(line) { |
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line = pkgsURL.ReplaceAllFunc(line, func(m []byte) []byte { |
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if bytes.Equal(m, trackURLPrefix) { |
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hadCorrect = true |
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} else { |
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changes++ |
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} |
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return trackURLPrefix |
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}) |
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} |
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buf.Write(line) |
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buf.WriteByte('\n') |
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} |
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if hadCorrect || (changes == 1 && bytes.Equal(bytes.TrimSpace(was), bytes.TrimSpace(buf.Bytes()))) { |
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// Unchanged or close enough.
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return was, nil |
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} |
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if changes != 1 { |
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// No changes, or an unexpected number of changes (what?). Bail.
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// They probably editted it by hand and we don't know what to do.
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return nil, fmt.Errorf("unexpected/unsupported %s contents", aptSourcesFile) |
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} |
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return buf.Bytes(), nil |
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} |
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func (up *updater) updateArchLike() (err error) { |
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if up.Version != "" { |
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return errors.New("installing a specific version on Arch-based distros is not supported") |
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} |
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if err := requireRoot(); err != nil { |
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return err |
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} |
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defer func() { |
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if err != nil { |
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err = fmt.Errorf(`%w; you can try updating using "pacman --sync --refresh tailscale"`, err) |
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} |
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}() |
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out, err := exec.Command("pacman", "--sync", "--refresh", "--info", "tailscale").CombinedOutput() |
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if err != nil { |
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return fmt.Errorf("failed checking pacman for latest tailscale version: %w, output: %q", err, out) |
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} |
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ver, err := parsePacmanVersion(out) |
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if err != nil { |
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return err |
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} |
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if !up.confirm(ver) { |
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return nil |
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} |
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cmd := exec.Command("pacman", "--sync", "--noconfirm", "tailscale") |
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cmd.Stdout = os.Stdout |
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cmd.Stderr = os.Stderr |
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if err := cmd.Run(); err != nil { |
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return fmt.Errorf("failed tailscale update using pacman: %w", err) |
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} |
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return nil |
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} |
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func parsePacmanVersion(out []byte) (string, error) { |
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for _, line := range strings.Split(string(out), "\n") { |
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// The line we're looking for looks like this:
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// Version : 1.44.2-1
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if !strings.HasPrefix(line, "Version") { |
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continue |
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} |
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parts := strings.SplitN(line, ":", 2) |
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if len(parts) != 2 { |
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return "", fmt.Errorf("version output from pacman is malformed: %q, cannot determine upgrade version", line) |
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} |
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ver := strings.TrimSpace(parts[1]) |
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// Trim the Arch patch version.
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ver = strings.Split(ver, "-")[0] |
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if ver == "" { |
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return "", fmt.Errorf("version output from pacman is malformed: %q, cannot determine upgrade version", line) |
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} |
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return ver, nil |
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} |
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return "", fmt.Errorf("could not find latest version of tailscale via pacman") |
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} |
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const yumRepoConfigFile = "/etc/yum.repos.d/tailscale.repo" |
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// updateFedoraLike updates tailscale on any distros in the Fedora family,
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// specifically anything that uses "dnf" or "yum" package managers. The actual
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// package manager is passed via packageManager.
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func (up *updater) updateFedoraLike(packageManager string) func() error { |
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return func() (err error) { |
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if err := requireRoot(); err != nil { |
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return err |
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} |
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defer func() { |
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if err != nil { |
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err = fmt.Errorf(`%w; you can try updating using "%s upgrade tailscale"`, err, packageManager) |
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} |
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}() |
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ver, err := requestedTailscaleVersion(up.Version, up.track) |
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if err != nil { |
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return err |
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} |
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if !up.confirm(ver) { |
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return nil |
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} |
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if updated, err := updateYUMRepoTrack(yumRepoConfigFile, up.track); err != nil { |
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return err |
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} else if updated { |
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up.Logf("Updated %s to use the %s track", yumRepoConfigFile, up.track) |
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} |
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cmd := exec.Command(packageManager, "install", "--assumeyes", fmt.Sprintf("tailscale-%s-1", ver)) |
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cmd.Stdout = os.Stdout |
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cmd.Stderr = os.Stderr |
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if err := cmd.Run(); err != nil { |
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return err |
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} |
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return nil |
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} |
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} |
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// updateYUMRepoTrack updates the repoFile file to make sure it has the
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// provided track (stable or unstable) in it.
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func updateYUMRepoTrack(repoFile, dstTrack string) (rewrote bool, err error) { |
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was, err := os.ReadFile(repoFile) |
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if err != nil { |
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return false, err |
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} |
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urlRe := regexp.MustCompile(`^(baseurl|gpgkey)=https://pkgs\.tailscale\.com/(un)?stable/`) |
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urlReplacement := fmt.Sprintf("$1=https://pkgs.tailscale.com/%s/", dstTrack) |
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s := bufio.NewScanner(bytes.NewReader(was)) |
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newContent := bytes.NewBuffer(make([]byte, 0, len(was))) |
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for s.Scan() { |
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line := s.Text() |
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// Handle repo section name, like "[tailscale-stable]".
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if len(line) > 0 && line[0] == '[' { |
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if !strings.HasPrefix(line, "[tailscale-") { |
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return false, fmt.Errorf("%q does not look like a tailscale repo file, it contains an unexpected %q section", repoFile, line) |
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} |
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fmt.Fprintf(newContent, "[tailscale-%s]\n", dstTrack) |
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continue |
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} |
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// Update the track mentioned in repo name.
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if strings.HasPrefix(line, "name=") { |
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fmt.Fprintf(newContent, "name=Tailscale %s\n", dstTrack) |
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continue |
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} |
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// Update the actual repo URLs.
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if strings.HasPrefix(line, "baseurl=") || strings.HasPrefix(line, "gpgkey=") { |
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fmt.Fprintln(newContent, urlRe.ReplaceAllString(line, urlReplacement)) |
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continue |
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} |
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fmt.Fprintln(newContent, line) |
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} |
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if bytes.Equal(was, newContent.Bytes()) { |
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return false, nil |
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} |
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return true, os.WriteFile(repoFile, newContent.Bytes(), 0644) |
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} |
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func (up *updater) updateAlpineLike() (err error) { |
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if up.Version != "" { |
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return errors.New("installing a specific version on Alpine-based distros is not supported") |
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} |
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if err := requireRoot(); err != nil { |
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return err |
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} |
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defer func() { |
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if err != nil { |
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err = fmt.Errorf(`%w; you can try updating using "apk upgrade tailscale"`, err) |
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} |
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}() |
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out, err := exec.Command("apk", "update").CombinedOutput() |
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if err != nil { |
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return fmt.Errorf("failed refresh apk repository indexes: %w, output: %q", err, out) |
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} |
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out, err = exec.Command("apk", "info", "tailscale").CombinedOutput() |
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if err != nil { |
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return fmt.Errorf("failed checking apk for latest tailscale version: %w, output: %q", err, out) |
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} |
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ver, err := parseAlpinePackageVersion(out) |
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if err != nil { |
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return fmt.Errorf(`failed to parse latest version from "apk info tailscale": %w`, err) |
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} |
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if !up.confirm(ver) { |
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return nil |
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} |
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cmd := exec.Command("apk", "upgrade", "tailscale") |
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cmd.Stdout = os.Stdout |
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cmd.Stderr = os.Stderr |
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if err := cmd.Run(); err != nil { |
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return fmt.Errorf("failed tailscale update using apk: %w", err) |
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} |
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return nil |
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} |
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func parseAlpinePackageVersion(out []byte) (string, error) { |
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s := bufio.NewScanner(bytes.NewReader(out)) |
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for s.Scan() { |
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// The line should look like this:
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// tailscale-1.44.2-r0 description:
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line := strings.TrimSpace(s.Text()) |
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if !strings.HasPrefix(line, "tailscale-") { |
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continue |
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} |
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parts := strings.SplitN(line, "-", 3) |
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if len(parts) < 3 { |
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return "", fmt.Errorf("malformed info line: %q", line) |
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} |
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return parts[1], nil |
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} |
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return "", errors.New("tailscale version not found in output") |
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} |
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func (up *updater) updateMacSys() error { |
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// use sparkle? do we have permissions from this context? does sudo help?
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// We can at least fail with a command they can run to update from the shell.
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// Like "tailscale update --macsys | sudo sh" or something.
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//
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// TODO(bradfitz,mihai): implement. But for now:
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return errors.ErrUnsupported |
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} |
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func (up *updater) updateMacAppStore() error { |
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out, err := exec.Command("defaults", "read", "/Library/Preferences/com.apple.commerce.plist", "AutoUpdate").CombinedOutput() |
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if err != nil { |
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return fmt.Errorf("can't check App Store auto-update setting: %w, output: %q", err, string(out)) |
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} |
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const on = "1\n" |
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if string(out) != on { |
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up.Logf("NOTE: Automatic updating for App Store apps is turned off. You can change this setting in System Settings (search for ‘update’).") |
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} |
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out, err = exec.Command("softwareupdate", "--list").CombinedOutput() |
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if err != nil { |
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return fmt.Errorf("can't check App Store for available updates: %w, output: %q", err, string(out)) |
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} |
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newTailscale := parseSoftwareupdateList(out) |
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if newTailscale == "" { |
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up.Logf("no Tailscale update available") |
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return nil |
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} |
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newTailscaleVer := strings.TrimPrefix(newTailscale, "Tailscale-") |
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if !up.confirm(newTailscaleVer) { |
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return nil |
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} |
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cmd := exec.Command("sudo", "softwareupdate", "--install", newTailscale) |
||||
cmd.Stdout = os.Stdout |
||||
cmd.Stderr = os.Stderr |
||||
if err := cmd.Run(); err != nil { |
||||
return fmt.Errorf("can't install App Store update for Tailscale: %w", err) |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
var macOSAppStoreListPattern = regexp.MustCompile(`(?m)^\s+\*\s+Label:\s*(Tailscale-\d[\d\.]+)`) |
||||
|
||||
// parseSoftwareupdateList searches the output of `softwareupdate --list` on
|
||||
// Darwin and returns the matching Tailscale package label. If there is none,
|
||||
// returns the empty string.
|
||||
//
|
||||
// See TestParseSoftwareupdateList for example inputs.
|
||||
func parseSoftwareupdateList(stdout []byte) string { |
||||
matches := macOSAppStoreListPattern.FindSubmatch(stdout) |
||||
if len(matches) < 2 { |
||||
return "" |
||||
} |
||||
return string(matches[1]) |
||||
} |
||||
|
||||
// winMSIEnv is the environment variable that, if set, is the MSI file for the
|
||||
// update command to install. It's passed like this so we can stop the
|
||||
// tailscale.exe process from running before the msiexec process runs and tries
|
||||
// to overwrite ourselves.
|
||||
const winMSIEnv = "TS_UPDATE_WIN_MSI" |
||||
|
||||
var ( |
||||
verifyAuthenticode func(string) error // or nil on non-Windows
|
||||
markTempFileFunc func(string) error // or nil on non-Windows
|
||||
) |
||||
|
||||
func (up *updater) updateWindows() error { |
||||
if msi := os.Getenv(winMSIEnv); msi != "" { |
||||
up.Logf("installing %v ...", msi) |
||||
if err := up.installMSI(msi); err != nil { |
||||
up.Logf("MSI install failed: %v", err) |
||||
return err |
||||
} |
||||
up.Logf("success.") |
||||
return nil |
||||
} |
||||
ver, err := requestedTailscaleVersion(up.Version, up.track) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
arch := runtime.GOARCH |
||||
if arch == "386" { |
||||
arch = "x86" |
||||
} |
||||
|
||||
if !up.confirm(ver) { |
||||
return nil |
||||
} |
||||
if !winutil.IsCurrentProcessElevated() { |
||||
return errors.New("must be run as Administrator") |
||||
} |
||||
|
||||
tsDir := filepath.Join(os.Getenv("ProgramData"), "Tailscale") |
||||
msiDir := filepath.Join(tsDir, "MSICache") |
||||
if fi, err := os.Stat(tsDir); err != nil { |
||||
return fmt.Errorf("expected %s to exist, got stat error: %w", tsDir, err) |
||||
} else if !fi.IsDir() { |
||||
return fmt.Errorf("expected %s to be a directory; got %v", tsDir, fi.Mode()) |
||||
} |
||||
if err := os.MkdirAll(msiDir, 0700); err != nil { |
||||
return err |
||||
} |
||||
url := fmt.Sprintf("https://pkgs.tailscale.com/%s/tailscale-setup-%s-%s.msi", up.track, ver, arch) |
||||
msiTarget := filepath.Join(msiDir, path.Base(url)) |
||||
if err := up.downloadURLToFile(url, msiTarget); err != nil { |
||||
return err |
||||
} |
||||
|
||||
up.Logf("verifying MSI authenticode...") |
||||
if err := verifyAuthenticode(msiTarget); err != nil { |
||||
return fmt.Errorf("authenticode verification of %s failed: %w", msiTarget, err) |
||||
} |
||||
up.Logf("authenticode verification succeeded") |
||||
|
||||
up.Logf("making tailscale.exe copy to switch to...") |
||||
selfCopy, err := makeSelfCopy() |
||||
if err != nil { |
||||
return err |
||||
} |
||||
defer os.Remove(selfCopy) |
||||
up.Logf("running tailscale.exe copy for final install...") |
||||
|
||||
cmd := exec.Command(selfCopy, "update") |
||||
cmd.Env = append(os.Environ(), winMSIEnv+"="+msiTarget) |
||||
cmd.Stdout = os.Stderr |
||||
cmd.Stderr = os.Stderr |
||||
cmd.Stdin = os.Stdin |
||||
if err := cmd.Start(); err != nil { |
||||
return err |
||||
} |
||||
// Once it's started, exit ourselves, so the binary is free
|
||||
// to be replaced.
|
||||
os.Exit(0) |
||||
panic("unreachable") |
||||
} |
||||
|
||||
func (up *updater) installMSI(msi string) error { |
||||
var err error |
||||
for tries := 0; tries < 2; tries++ { |
||||
cmd := exec.Command("msiexec.exe", "/i", filepath.Base(msi), "/quiet", "/promptrestart", "/qn") |
||||
cmd.Dir = filepath.Dir(msi) |
||||
cmd.Stdout = os.Stdout |
||||
cmd.Stderr = os.Stderr |
||||
cmd.Stdin = os.Stdin |
||||
err = cmd.Run() |
||||
if err == nil { |
||||
break |
||||
} |
||||
uninstallVersion := version.Short() |
||||
if v := os.Getenv("TS_DEBUG_UNINSTALL_VERSION"); v != "" { |
||||
uninstallVersion = v |
||||
} |
||||
// Assume it's a downgrade, which msiexec won't permit. Uninstall our current version first.
|
||||
up.Logf("Uninstalling current version %q for downgrade...", uninstallVersion) |
||||
cmd = exec.Command("msiexec.exe", "/x", msiUUIDForVersion(uninstallVersion), "/norestart", "/qn") |
||||
cmd.Stdout = os.Stdout |
||||
cmd.Stderr = os.Stderr |
||||
cmd.Stdin = os.Stdin |
||||
err = cmd.Run() |
||||
up.Logf("msiexec uninstall: %v", err) |
||||
} |
||||
return err |
||||
} |
||||
|
||||
func msiUUIDForVersion(ver string) string { |
||||
arch := runtime.GOARCH |
||||
if arch == "386" { |
||||
arch = "x86" |
||||
} |
||||
track, err := versionToTrack(ver) |
||||
if err != nil { |
||||
track = UnstableTrack |
||||
} |
||||
msiURL := fmt.Sprintf("https://pkgs.tailscale.com/%s/tailscale-setup-%s-%s.msi", track, ver, arch) |
||||
return "{" + strings.ToUpper(uuid.NewSHA1(uuid.NameSpaceURL, []byte(msiURL)).String()) + "}" |
||||
} |
||||
|
||||
func makeSelfCopy() (tmpPathExe string, err error) { |
||||
selfExe, err := os.Executable() |
||||
if err != nil { |
||||
return "", err |
||||
} |
||||
f, err := os.Open(selfExe) |
||||
if err != nil { |
||||
return "", err |
||||
} |
||||
defer f.Close() |
||||
f2, err := os.CreateTemp("", "tailscale-updater-*.exe") |
||||
if err != nil { |
||||
return "", err |
||||
} |
||||
if f := markTempFileFunc; f != nil { |
||||
if err := f(f2.Name()); err != nil { |
||||
return "", err |
||||
} |
||||
} |
||||
if _, err := io.Copy(f2, f); err != nil { |
||||
f2.Close() |
||||
return "", err |
||||
} |
||||
return f2.Name(), f2.Close() |
||||
} |
||||
|
||||
func (up *updater) downloadURLToFile(urlSrc, fileDst string) (ret error) { |
||||
tr := http.DefaultTransport.(*http.Transport).Clone() |
||||
tr.Proxy = tshttpproxy.ProxyFromEnvironment |
||||
defer tr.CloseIdleConnections() |
||||
c := &http.Client{Transport: tr} |
||||
|
||||
quickCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second) |
||||
defer cancel() |
||||
headReq := must.Get(http.NewRequestWithContext(quickCtx, "HEAD", urlSrc, nil)) |
||||
|
||||
res, err := c.Do(headReq) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
if res.StatusCode != http.StatusOK { |
||||
return fmt.Errorf("HEAD %s: %v", urlSrc, res.Status) |
||||
} |
||||
if res.ContentLength <= 0 { |
||||
return fmt.Errorf("HEAD %s: unexpected Content-Length %v", urlSrc, res.ContentLength) |
||||
} |
||||
up.Logf("Download size: %v", res.ContentLength) |
||||
|
||||
hashReq := must.Get(http.NewRequestWithContext(quickCtx, "GET", urlSrc+".sha256", nil)) |
||||
hashRes, err := c.Do(hashReq) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
hashHex, err := io.ReadAll(io.LimitReader(hashRes.Body, 100)) |
||||
hashRes.Body.Close() |
||||
if res.StatusCode != http.StatusOK { |
||||
return fmt.Errorf("GET %s.sha256: %v", urlSrc, res.Status) |
||||
} |
||||
if err != nil { |
||||
return err |
||||
} |
||||
wantHash, err := hex.DecodeString(string(strings.TrimSpace(string(hashHex)))) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
hash := sha256.New() |
||||
|
||||
dlReq := must.Get(http.NewRequestWithContext(context.Background(), "GET", urlSrc, nil)) |
||||
dlRes, err := c.Do(dlReq) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
// TODO(bradfitz): resume from existing partial file on disk
|
||||
if dlRes.StatusCode != http.StatusOK { |
||||
return fmt.Errorf("GET %s: %v", urlSrc, dlRes.Status) |
||||
} |
||||
|
||||
of, err := os.Create(fileDst) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
defer func() { |
||||
if ret != nil { |
||||
of.Close() |
||||
// TODO(bradfitz): os.Remove(fileDst) too? or keep it to resume from/debug later.
|
||||
} |
||||
}() |
||||
pw := &progressWriter{total: res.ContentLength, logf: up.Logf} |
||||
n, err := io.Copy(io.MultiWriter(hash, of, pw), io.LimitReader(dlRes.Body, res.ContentLength)) |
||||
if err != nil { |
||||
return err |
||||
} |
||||
if n != res.ContentLength { |
||||
return fmt.Errorf("downloaded %v; want %v", n, res.ContentLength) |
||||
} |
||||
if err := of.Close(); err != nil { |
||||
return err |
||||
} |
||||
pw.print() |
||||
|
||||
if !bytes.Equal(hash.Sum(nil), wantHash) { |
||||
return fmt.Errorf("SHA-256 of downloaded MSI didn't match expected value") |
||||
} |
||||
up.Logf("hash matched") |
||||
|
||||
return nil |
||||
} |
||||
|
||||
type progressWriter struct { |
||||
done int64 |
||||
total int64 |
||||
lastPrint time.Time |
||||
logf logger.Logf |
||||
} |
||||
|
||||
func (pw *progressWriter) Write(p []byte) (n int, err error) { |
||||
pw.done += int64(len(p)) |
||||
if time.Since(pw.lastPrint) > 2*time.Second { |
||||
pw.print() |
||||
} |
||||
return len(p), nil |
||||
} |
||||
|
||||
func (pw *progressWriter) print() { |
||||
pw.lastPrint = time.Now() |
||||
pw.logf("Downloaded %v/%v (%.1f%%)", pw.done, pw.total, float64(pw.done)/float64(pw.total)*100) |
||||
} |
||||
|
||||
func (up *updater) updateFreeBSD() (err error) { |
||||
if up.Version != "" { |
||||
return errors.New("installing a specific version on FreeBSD is not supported") |
||||
} |
||||
if err := requireRoot(); err != nil { |
||||
return err |
||||
} |
||||
|
||||
defer func() { |
||||
if err != nil { |
||||
err = fmt.Errorf(`%w; you can try updating using "pkg upgrade tailscale"`, err) |
||||
} |
||||
}() |
||||
|
||||
out, err := exec.Command("pkg", "update").CombinedOutput() |
||||
if err != nil { |
||||
return fmt.Errorf("failed refresh pkg repository indexes: %w, output: %q", err, out) |
||||
} |
||||
out, err = exec.Command("pkg", "rquery", "%v", "tailscale").CombinedOutput() |
||||
if err != nil { |
||||
return fmt.Errorf("failed checking pkg for latest tailscale version: %w, output: %q", err, out) |
||||
} |
||||
ver := string(bytes.TrimSpace(out)) |
||||
if !up.confirm(ver) { |
||||
return nil |
||||
} |
||||
|
||||
cmd := exec.Command("pkg", "upgrade", "tailscale") |
||||
cmd.Stdout = os.Stdout |
||||
cmd.Stderr = os.Stderr |
||||
if err := cmd.Run(); err != nil { |
||||
return fmt.Errorf("failed tailscale update using pkg: %w", err) |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func haveExecutable(name string) bool { |
||||
path, err := exec.LookPath(name) |
||||
return err == nil && path != "" |
||||
} |
||||
|
||||
func requestedTailscaleVersion(ver, track string) (string, error) { |
||||
if ver != "" { |
||||
return ver, nil |
||||
} |
||||
return LatestTailscaleVersion(track) |
||||
} |
||||
|
||||
// LatestTailscaleVersion returns the latest released version for the given
|
||||
// track from pkgs.tailscale.com.
|
||||
func LatestTailscaleVersion(track string) (string, error) { |
||||
if track == CurrentTrack { |
||||
if version.IsUnstableBuild() { |
||||
track = UnstableTrack |
||||
} else { |
||||
track = StableTrack |
||||
} |
||||
} |
||||
|
||||
url := fmt.Sprintf("https://pkgs.tailscale.com/%s/?mode=json&os=%s", track, runtime.GOOS) |
||||
res, err := http.Get(url) |
||||
if err != nil { |
||||
return "", fmt.Errorf("fetching latest tailscale version: %w", err) |
||||
} |
||||
var latest struct { |
||||
Version string |
||||
} |
||||
err = json.NewDecoder(res.Body).Decode(&latest) |
||||
res.Body.Close() |
||||
if err != nil { |
||||
return "", fmt.Errorf("decoding JSON: %v: %w", res.Status, err) |
||||
} |
||||
if latest.Version == "" { |
||||
return "", fmt.Errorf("no version found at %q", url) |
||||
} |
||||
return latest.Version, nil |
||||
} |
||||
|
||||
func requireRoot() error { |
||||
if os.Geteuid() == 0 { |
||||
return nil |
||||
} |
||||
switch runtime.GOOS { |
||||
case "linux": |
||||
return errors.New("must be root; use sudo") |
||||
case "freebsd", "openbsd": |
||||
return errors.New("must be root; use doas") |
||||
default: |
||||
return errors.New("must be root") |
||||
} |
||||
} |
||||
@ -1,20 +1,28 @@ |
||||
// Copyright (c) Tailscale Inc & AUTHORS
|
||||
// SPDX-License-Identifier: BSD-3-Clause
|
||||
|
||||
// Windows-specific stuff that can't go in update.go because it needs
|
||||
// Windows-specific stuff that can't go in clientupdate.go because it needs
|
||||
// x/sys/windows.
|
||||
|
||||
package cli |
||||
package clientupdate |
||||
|
||||
import ( |
||||
"golang.org/x/sys/windows" |
||||
"tailscale.com/util/winutil/authenticode" |
||||
) |
||||
|
||||
func init() { |
||||
markTempFileFunc = markTempFileWindows |
||||
verifyAuthenticode = verifyTailscale |
||||
} |
||||
|
||||
func markTempFileWindows(name string) error { |
||||
name16 := windows.StringToUTF16Ptr(name) |
||||
return windows.MoveFileEx(name16, nil, windows.MOVEFILE_DELAY_UNTIL_REBOOT) |
||||
} |
||||
|
||||
const certSubjectTailscale = "Tailscale Inc." |
||||
|
||||
func verifyTailscale(path string) error { |
||||
return authenticode.Verify(path, certSubjectTailscale) |
||||
} |
||||
@ -1,20 +0,0 @@ |
||||
/* SPDX-License-Identifier: MIT |
||||
* |
||||
* Copyright (C) 2019-2022 WireGuard LLC. All Rights Reserved. |
||||
*/ |
||||
|
||||
package cli |
||||
|
||||
import ( |
||||
"tailscale.com/util/winutil/authenticode" |
||||
) |
||||
|
||||
func init() { |
||||
verifyAuthenticode = verifyTailscale |
||||
} |
||||
|
||||
const certSubjectTailscale = "Tailscale Inc." |
||||
|
||||
func verifyTailscale(path string) error { |
||||
return authenticode.Verify(path, certSubjectTailscale) |
||||
} |
||||
Loading…
Reference in new issue