safing-portmaster/service/updates/module.go
2024-09-05 10:25:57 +03:00

125 lines
2.9 KiB
Go

package updates
import (
"flag"
"time"
"github.com/safing/portmaster/base/api"
"github.com/safing/portmaster/base/config"
"github.com/safing/portmaster/base/log"
"github.com/safing/portmaster/base/notifications"
"github.com/safing/portmaster/service/mgr"
"github.com/safing/portmaster/service/updates/registry"
)
var autoUpdate bool
func init() {
flag.BoolVar(&autoUpdate, "auto-update", false, "auto apply downloaded updates")
}
// Updates provides access to released artifacts.
type Updates struct {
m *mgr.Manager
states *mgr.StateMgr
updateCheckWorkerMgr *mgr.WorkerMgr
upgraderWorkerMgr *mgr.WorkerMgr
EventResourcesUpdated *mgr.EventMgr[struct{}]
EventVersionsUpdated *mgr.EventMgr[struct{}]
registry registry.Registry
instance instance
}
// New returns a new Updates module.
func New(instance instance, name string, index registry.UpdateIndex) (*Updates, error) {
m := mgr.New(name)
module := &Updates{
m: m,
states: m.NewStateMgr(),
EventResourcesUpdated: mgr.NewEventMgr[struct{}](ResourceUpdateEvent, m),
EventVersionsUpdated: mgr.NewEventMgr[struct{}](VersionUpdateEvent, m),
instance: instance,
}
// Events
module.updateCheckWorkerMgr = m.NewWorkerMgr("update checker", module.checkForUpdates, nil)
module.updateCheckWorkerMgr.Repeat(30 * time.Second)
module.upgraderWorkerMgr = m.NewWorkerMgr("upgrader", func(w *mgr.WorkerCtx) error {
err := module.registry.ApplyUpdates()
if err != nil {
// TODO(vladimir): Send notification to UI
log.Errorf("updates: failed to apply updates: %s", err)
} else {
module.instance.Restart()
}
return nil
}, nil)
module.registry = registry.New(index)
_ = module.registry.Initialize()
return module, nil
}
func (u *Updates) checkForUpdates(_ *mgr.WorkerCtx) error {
hasUpdates, err := u.registry.CheckForUpdates()
if err != nil {
log.Errorf("updates: failed to check for updates: %s", err)
}
if hasUpdates {
log.Infof("updates: there is updates available")
err = u.registry.DownloadUpdates()
if err != nil {
log.Errorf("updates: failed to download bundle: %s", err)
} else if autoUpdate {
u.ApplyUpdates()
}
} else {
log.Infof("updates: no new updates")
u.EventResourcesUpdated.Submit(struct{}{})
}
return nil
}
func (u *Updates) ApplyUpdates() {
u.upgraderWorkerMgr.Go()
}
// States returns the state manager.
func (u *Updates) States() *mgr.StateMgr {
return u.states
}
// Manager returns the module manager.
func (u *Updates) Manager() *mgr.Manager {
return u.m
}
// Start starts the module.
func (u *Updates) Start() error {
u.updateCheckWorkerMgr.Go()
return nil
}
func (u *Updates) GetFile(id string) (*registry.File, error) {
return u.registry.GetFile(id)
}
// Stop stops the module.
func (u *Updates) Stop() error {
return stop()
}
type instance interface {
API() *api.API
Config() *config.Config
Restart()
Shutdown()
Notifications() *notifications.Notifications
}