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Pull request 2307: AGDNS-2556 Custom updater URL

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Squashed commit of the following:

commit 73f946138ccb4f89141f192b6cb1a21887604ab4
Merge: c58847bfb d578c713f
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 26 17:42:29 2024 +0300

    Merge branch 'master' into AGDNS-2556-custom-update-url

commit c58847bfb08131263e1cff4813eb4a466f613d91
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 26 17:34:11 2024 +0300

    home: imp logging

commit 0d451621d76fdf2c363d223eb29c4442d8f36dc8
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 26 15:12:04 2024 +0300

    home: rename config field

commit c7f3822929e9199f8f411f1a0ad072c643feb42f
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 26 15:07:09 2024 +0300

    all: enable updater for some cases

commit 872cd3a18c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Nov 22 19:09:18 2024 +0300

    updater: imp test

commit c9efb412e7
Merge: c989eef71 abb738013
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Nov 22 17:51:46 2024 +0300

    Merge branch 'master' into AGDNS-2556-custom-update-url

commit c989eef715
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Nov 22 17:46:34 2024 +0300

    all: imp code

commit 0452d8b356
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Nov 22 15:37:21 2024 +0300

    all: add custom url to updater
This commit is contained in:
Eugene Burkov 2024-11-26 20:35:16 +03:00
parent d578c713ff
commit 4a49c4db96
9 changed files with 183 additions and 102 deletions
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6
internal/home/config.go
View file

@ -162,6 +162,12 @@ type configuration struct {
// SchemaVersion is the version of the configuration schema. See
// [configmigrate.LastSchemaVersion].
SchemaVersion uint `yaml:"schema_version"`
// UnsafeUseCustomUpdateIndexURL is the URL to the custom update index.
//
// NOTE: It's only exists for testing purposes and should not be used in
// release.
UnsafeUseCustomUpdateIndexURL bool `yaml:"unsafe_use_custom_update_index_url,omitempty"`
}
// httpConfig is a block with HTTP configuration params.

19
internal/home/controlupdate.go
View file

@ -75,30 +75,31 @@ func (web *webAPI) handleVersionJSON(w http.ResponseWriter, r *http.Request) {
// update server.
func (web *webAPI) requestVersionInfo(resp *versionResponse, recheck bool) (err error) {
updater := web.conf.updater
for i := 0; i != 3; i++ {
for range 3 {
resp.VersionInfo, err = updater.VersionInfo(recheck)
if err != nil {
if err == nil {
return nil
}
var terr temporaryError
if errors.As(err, &terr) && terr.Temporary() {
// Temporary network error. This case may happen while we're
// restarting our DNS server. Log and sleep for some time.
//
// See https://github.com/AdguardTeam/AdGuardHome/issues/934.
d := time.Duration(i) * time.Second
log.Info("update: temp net error: %q; sleeping for %s and retrying", err, d)
time.Sleep(d)
const sleepTime = 2 * time.Second
log.Info("update: temp net error: %v; sleeping for %s and retrying", err, sleepTime)
time.Sleep(sleepTime)
continue
}
}
break
}
if err != nil {
vcu := updater.VersionCheckURL()
return fmt.Errorf("getting version info from %s: %w", vcu, err)
return fmt.Errorf("getting version info: %w", err)
}
return nil

144
internal/home/home.go
View file

@ -12,7 +12,6 @@ import (
"net/url"
"os"
"os/signal"
"path"
"path/filepath"
"runtime"
"slices"
@ -495,11 +494,42 @@ func checkPorts() (err error) {
return nil
}
// isUpdateEnabled returns true if the update is enabled for current
// configuration. It also logs the decision. customURL should be true if the
// updater is using a custom URL.
func isUpdateEnabled(ctx context.Context, l *slog.Logger, opts *options, customURL bool) (ok bool) {
if opts.disableUpdate {
l.DebugContext(ctx, "updates are disabled by command-line option")
return false
}
switch version.Channel() {
case
version.ChannelDevelopment,
version.ChannelCandidate:
if customURL {
l.DebugContext(ctx, "updates are enabled because custom url is used")
} else {
l.DebugContext(ctx, "updates are disabled for development and candidate builds")
}
return customURL
default:
l.DebugContext(ctx, "updates are enabled")
return true
}
}
// initWeb initializes the web module.
func initWeb(
ctx context.Context,
opts options,
clientBuildFS fs.FS,
upd *updater.Updater,
l *slog.Logger,
customURL bool,
) (web *webAPI, err error) {
var clientFS fs.FS
if opts.localFrontend {
@ -513,17 +543,7 @@ func initWeb(
}
}
disableUpdate := opts.disableUpdate
switch version.Channel() {
case
version.ChannelDevelopment,
version.ChannelCandidate:
disableUpdate = true
}
if disableUpdate {
log.Info("AdGuard Home updates are disabled")
}
disableUpdate := !isUpdateEnabled(ctx, l, &opts, customURL)
webConf := &webConfig{
updater: upd,
@ -544,7 +564,7 @@ func initWeb(
web = newWebAPI(webConf, l)
if web == nil {
return nil, fmt.Errorf("initializing web: %w", err)
return nil, errors.Error("can not initialize web")
}
return web, nil
@ -557,6 +577,8 @@ func fatalOnError(err error) {
}
// run configures and starts AdGuard Home.
//
// TODO(e.burkov): Make opts a pointer.
func run(opts options, clientBuildFS fs.FS, done chan struct{}) {
// Configure working dir.
err := initWorkingDir(opts)
@ -604,33 +626,13 @@ func run(opts options, clientBuildFS fs.FS, done chan struct{}) {
execPath, err := os.Executable()
fatalOnError(errors.Annotate(err, "getting executable path: %w"))
u := &url.URL{
Scheme: urlutil.SchemeHTTPS,
// TODO(a.garipov): Make configurable.
Host: "static.adtidy.org",
Path: path.Join("adguardhome", version.Channel(), "version.json"),
}
confPath := configFilePath()
log.Debug("using config path %q for updater", confPath)
upd := updater.NewUpdater(&updater.Config{
Client: config.Filtering.HTTPClient,
Version: version.Version(),
Channel: version.Channel(),
GOARCH: runtime.GOARCH,
GOOS: runtime.GOOS,
GOARM: version.GOARM(),
GOMIPS: version.GOMIPS(),
WorkDir: Context.workDir,
ConfName: confPath,
ExecPath: execPath,
VersionCheckURL: u.String(),
})
upd, customURL := newUpdater(ctx, slogLogger, Context.workDir, confPath, execPath, config)
// TODO(e.burkov): This could be made earlier, probably as the option's
// effect.
cmdlineUpdate(opts, upd, slogLogger)
cmdlineUpdate(ctx, slogLogger, opts, upd)
if !Context.firstRun {
// Save the updated config.
@ -658,7 +660,7 @@ func run(opts options, clientBuildFS fs.FS, done chan struct{}) {
onConfigModified()
}
Context.web, err = initWeb(opts, clientBuildFS, upd, slogLogger)
Context.web, err = initWeb(ctx, opts, clientBuildFS, upd, slogLogger, customURL)
fatalOnError(err)
statsDir, querylogDir, err := checkStatsAndQuerylogDirs(&Context, config)
@ -696,6 +698,57 @@ func run(opts options, clientBuildFS fs.FS, done chan struct{}) {
<-done
}
// newUpdater creates a new AdGuard Home updater. customURL is true if the user
// has specified a custom version announcement URL.
func newUpdater(
ctx context.Context,
l *slog.Logger,
workDir string,
confPath string,
execPath string,
config *configuration,
) (upd *updater.Updater, customURL bool) {
// envName is the name of the environment variable that can be used to
// override the default version check URL.
const envName = "ADGUARD_HOME_TEST_UPDATE_VERSION_URL"
customURLStr := os.Getenv(envName)
var versionURL *url.URL
switch {
case version.Channel() == version.ChannelRelease:
// Only enable custom version URL for development builds.
l.DebugContext(ctx, "custom version url is disabled for release builds")
case !config.UnsafeUseCustomUpdateIndexURL:
l.DebugContext(ctx, "custom version url is disabled in config")
default:
versionURL, _ = url.Parse(customURLStr)
}
err := urlutil.ValidateHTTPURL(versionURL)
if customURL = err == nil; customURL {
l.DebugContext(ctx, "parsing custom version url", slogutil.KeyError, err)
versionURL = updater.DefaultVersionURL()
}
l.DebugContext(ctx, "creating updater", "config_path", confPath)
return updater.NewUpdater(&updater.Config{
Client: config.Filtering.HTTPClient,
Version: version.Version(),
Channel: version.Channel(),
GOARCH: runtime.GOARCH,
GOOS: runtime.GOOS,
GOARM: version.GOARM(),
GOMIPS: version.GOMIPS(),
WorkDir: workDir,
ConfName: confPath,
ExecPath: execPath,
VersionCheckURL: versionURL,
}), customURL
}
// checkPermissions checks and migrates permissions of the files and directories
// used by AdGuard Home, if needed.
func checkPermissions(workDir, confPath, dataDir, statsDir, querylogDir string) {
@ -1010,7 +1063,7 @@ type jsonError struct {
}
// cmdlineUpdate updates current application and exits. l must not be nil.
func cmdlineUpdate(opts options, upd *updater.Updater, l *slog.Logger) {
func cmdlineUpdate(ctx context.Context, l *slog.Logger, opts options, upd *updater.Updater) {
if !opts.performUpdate {
return
}
@ -1023,20 +1076,19 @@ func cmdlineUpdate(opts options, upd *updater.Updater, l *slog.Logger) {
err := initDNSServer(nil, nil, nil, nil, nil, nil, &tlsConfigSettings{}, l)
fatalOnError(err)
log.Info("cmdline update: performing update")
l.InfoContext(ctx, "performing update via cli")
info, err := upd.VersionInfo(true)
if err != nil {
vcu := upd.VersionCheckURL()
log.Error("getting version info from %s: %s", vcu, err)
l.ErrorContext(ctx, "getting version info", slogutil.KeyError, err)
os.Exit(1)
os.Exit(osutil.ExitCodeFailure)
}
if info.NewVersion == version.Version() {
log.Info("no updates available")
l.InfoContext(ctx, "no updates available")
os.Exit(0)
os.Exit(osutil.ExitCodeSuccess)
}
err = upd.Update(Context.firstRun)
@ -1044,10 +1096,10 @@ func cmdlineUpdate(opts options, upd *updater.Updater, l *slog.Logger) {
err = restartService()
if err != nil {
log.Debug("restarting service: %s", err)
log.Info("AdGuard Home was not installed as a service. " +
l.DebugContext(ctx, "restarting service", slogutil.KeyError, err)
l.InfoContext(ctx, "AdGuard Home was not installed as a service. "+
"Please restart running instances of AdGuardHome manually.")
}
os.Exit(0)
os.Exit(osutil.ExitCodeSuccess)
}

2
internal/home/web.go
View file

@ -101,6 +101,8 @@ type webAPI struct {
// newWebAPI creates a new instance of the web UI and API server. l must not be
// nil.
//
// TODO(a.garipov): Return a proper error.
func newWebAPI(conf *webConfig, l *slog.Logger) (w *webAPI) {
log.Info("web: initializing")

8
internal/updater/check.go
View file

@ -13,6 +13,7 @@ import (
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/ioutil"
"github.com/AdguardTeam/golibs/log"
"github.com/c2h5oh/datasize"
)
// TODO(a.garipov): Make configurable.
@ -28,8 +29,9 @@ type VersionInfo struct {
CanAutoUpdate aghalg.NullBool `json:"can_autoupdate,omitempty"`
}
// MaxResponseSize is responses on server's requests maximum length in bytes.
const MaxResponseSize = 64 * 1024
// maxVersionRespSize is the maximum length in bytes for version information
// response.
const maxVersionRespSize datasize.ByteSize = 64 * datasize.KB
// VersionInfo downloads the latest version information. If forceRecheck is
// false and there are cached results, those results are returned.
@ -51,7 +53,7 @@ func (u *Updater) VersionInfo(forceRecheck bool) (vi VersionInfo, err error) {
}
defer func() { err = errors.WithDeferred(err, resp.Body.Close()) }()
r := ioutil.LimitReader(resp.Body, MaxResponseSize)
r := ioutil.LimitReader(resp.Body, maxVersionRespSize.Bytes())
// This use of ReadAll is safe, because we just limited the appropriate
// ReadCloser.

6
internal/updater/check_test.go
View file

@ -51,9 +51,11 @@ func TestUpdater_VersionInfo(t *testing.T) {
}))
t.Cleanup(srv.Close)
fakeURL, err := url.JoinPath(srv.URL, "adguardhome", version.ChannelBeta, "version.json")
srvURL, err := url.Parse(srv.URL)
require.NoError(t, err)
fakeURL := srvURL.JoinPath("adguardhome", version.ChannelBeta, "version.json")
u := updater.NewUpdater(&updater.Config{
Client: srv.Client(),
Version: "v0.103.0-beta.1",
@ -134,7 +136,7 @@ func TestUpdater_VersionInfo_others(t *testing.T) {
GOARCH: tc.arch,
GOARM: tc.arm,
GOMIPS: tc.mips,
VersionCheckURL: fakeURL.String(),
VersionCheckURL: fakeURL,
})
info, err := u.VersionInfo(false)

31
internal/updater/updater.go
View file

@ -9,8 +9,10 @@ import (
"io"
"io/fs"
"net/http"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"strings"
"sync"
@ -21,6 +23,7 @@ import (
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/ioutil"
"github.com/AdguardTeam/golibs/log"
"github.com/AdguardTeam/golibs/netutil/urlutil"
)
// Updater is the AdGuard Home updater.
@ -61,10 +64,23 @@ type Updater struct {
prevCheckResult VersionInfo
}
// DefaultVersionURL returns the default URL for the version announcement.
func DefaultVersionURL() *url.URL {
return &url.URL{
Scheme: urlutil.SchemeHTTPS,
Host: "static.adtidy.org",
Path: path.Join("adguardhome", version.Channel(), "version.json"),
}
}
// Config is the AdGuard Home updater configuration.
type Config struct {
Client *http.Client
// VersionCheckURL is URL to the latest version announcement. It must not
// be nil, see [DefaultVersionURL].
VersionCheckURL *url.URL
Version string
Channel string
GOARCH string
@ -81,12 +97,9 @@ type Config struct {
// ExecPath is path to the executable file.
ExecPath string
// VersionCheckURL is url to the latest version announcement.
VersionCheckURL string
}
// NewUpdater creates a new Updater.
// NewUpdater creates a new Updater. conf must not be nil.
func NewUpdater(conf *Config) *Updater {
return &Updater{
client: conf.Client,
@ -101,7 +114,7 @@ func NewUpdater(conf *Config) *Updater {
confName: conf.ConfName,
workDir: conf.WorkDir,
execPath: conf.ExecPath,
versionCheckURL: conf.VersionCheckURL,
versionCheckURL: conf.VersionCheckURL.String(),
mu: &sync.RWMutex{},
}
@ -167,14 +180,6 @@ func (u *Updater) NewVersion() (nv string) {
return u.newVersion
}
// VersionCheckURL returns the version check URL.
func (u *Updater) VersionCheckURL() (vcu string) {
u.mu.RLock()
defer u.mu.RUnlock()
return u.versionCheckURL
}
// prepare fills all necessary fields in Updater object.
func (u *Updater) prepare() (err error) {
u.updateDir = filepath.Join(u.workDir, fmt.Sprintf("agh-update-%s", u.newVersion))

16
internal/updater/updater_internal_test.go
View file

@ -1,6 +1,7 @@
package updater
import (
"net/url"
"os"
"path/filepath"
"testing"
@ -45,7 +46,7 @@ func TestUpdater_internal(t *testing.T) {
for _, tc := range testCases {
exePath := filepath.Join(wd, tc.exeName)
// start server for returning package file
// Start server for returning package file.
pkgData, err := os.ReadFile(filepath.Join("testdata", tc.archiveName))
require.NoError(t, err)
@ -59,6 +60,9 @@ func TestUpdater_internal(t *testing.T) {
ExecPath: exePath,
WorkDir: wd,
ConfName: yamlPath,
// TODO(e.burkov): Rewrite the test to use a fake version check
// URL with a fake URLs for the package files.
VersionCheckURL: &url.URL{},
})
u.newVersion = "v0.103.1"
@ -72,8 +76,9 @@ func TestUpdater_internal(t *testing.T) {
u.clean()
// check backup files
d, err := os.ReadFile(filepath.Join(wd, "agh-backup", "AdGuardHome.yaml"))
require.True(t, t.Run("backup", func(t *testing.T) {
var d []byte
d, err = os.ReadFile(filepath.Join(wd, "agh-backup", "AdGuardHome.yaml"))
require.NoError(t, err)
assert.Equal(t, "AdGuardHome.yaml", string(d))
@ -82,8 +87,10 @@ func TestUpdater_internal(t *testing.T) {
require.NoError(t, err)
assert.Equal(t, tc.exeName, string(d))
}))
// check updated files
require.True(t, t.Run("updated", func(t *testing.T) {
var d []byte
d, err = os.ReadFile(exePath)
require.NoError(t, err)
@ -103,5 +110,6 @@ func TestUpdater_internal(t *testing.T) {
require.NoError(t, err)
assert.Equal(t, "AdGuardHome.yaml", string(d))
}))
}
}

5
internal/updater/updater_test.go
View file

@ -65,7 +65,10 @@ func TestUpdater_Update(t *testing.T) {
srv := httptest.NewServer(mux)
t.Cleanup(srv.Close)
versionCheckURL, err := url.JoinPath(srv.URL, versionPath)
srvURL, err := url.Parse(srv.URL)
require.NoError(t, err)
versionCheckURL := srvURL.JoinPath(versionPath)
require.NoError(t, err)
u := updater.NewUpdater(&updater.Config{