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package manager
import (
"context"
"errors"
"fmt"
"os"
"time"
"gitlab.torproject.org/rgdd/ct/pkg/metadata"
"rgdd.se/silent-ct/internal/feedback"
"rgdd.se/silent-ct/internal/logger"
"rgdd.se/silent-ct/internal/monitor"
"rgdd.se/silent-ct/pkg/policy"
"rgdd.se/silent-ct/pkg/storage"
)
type Config struct {
Policy policy.Policy
Bootstrap bool // Whether a new storage should be initialized from scratch
Directory string // Path to a directory where everything will be stored
// Optional
Logger logger.Logger // Where to output messages and with what verbosity
AlertDelay time.Duration // Time before alerting on certificates that are unaccounted for
MetadataRefreshInterval time.Duration // How often to update the list of monitored logs
ShutdownTimeout time.Duration // Force shutdown after this timeout (FIXME: should not be needed)
}
type Manager struct {
Config
storage.Storage
feventCh chan []feedback.Event
meventCh chan monitor.Event
mconfigCh chan monitor.MonitoredLog
errorCh chan error
}
func New(cfg Config, fch chan []feedback.Event, mch chan monitor.Event, cch chan monitor.MonitoredLog, ech chan error) (Manager, error) {
if !cfg.Logger.IsConfigured() {
cfg.Logger = logger.New(logger.Config{Level: logger.LevelNotice, File: os.Stdout})
}
if cfg.MetadataRefreshInterval == 0 {
cfg.MetadataRefreshInterval = 1 * time.Hour
}
if cfg.ShutdownTimeout == 0 {
cfg.ShutdownTimeout = 1 * time.Second // FIXME: increase
}
s, err := storage.New(storage.Config{
Bootstrap: cfg.Bootstrap,
Directory: cfg.Directory,
AlertDelay: cfg.AlertDelay,
StaticLogs: cfg.Policy.StaticLogs,
RemoveLogs: cfg.Policy.RemoveLogs,
})
if err != nil {
return Manager{}, err
}
for _, log := range s.LogList.Generate() {
state, err := s.BootstrapLog(context.Background(), log, cfg.Bootstrap)
if errors.Is(err, storage.ErrorMonitorStateExists) {
continue
}
if err != nil {
return Manager{}, err
}
cfg.Logger.Infof("bootstrapping log %s at next index %d\n", log.URL, state.NextIndex)
}
return Manager{Config: cfg, Storage: s, feventCh: fch, meventCh: mch, mconfigCh: cch, errorCh: ech}, nil
}
func (mgr *Manager) Run(ctx context.Context) error {
if err := mgr.startupConfig(); err != nil {
return fmt.Errorf("unable to do startup config: %v", err)
}
metadataTicker := time.NewTicker(mgr.MetadataRefreshInterval)
defer metadataTicker.Stop()
shutdown := false
for {
select {
case <-metadataTicker.C:
if err := mgr.metadataJob(ctx); err != nil {
return fmt.Errorf("unable to run metadata job: %v", err)
}
case ev := <-mgr.meventCh:
if err := mgr.monitorJob(ev); err != nil {
return fmt.Errorf("unable to run monitor job: %v", err)
}
if err := mgr.alertJob(); err != nil {
return fmt.Errorf("unable to run alert job: %v\n", err)
}
case ev := <-mgr.feventCh:
if err := mgr.feedbackJob(ev); err != nil {
return fmt.Errorf("unable to run server job: %v", err)
}
if err := mgr.alertJob(); err != nil {
return fmt.Errorf("unable to run alert job: %v\n", err)
}
case err := <-mgr.errorCh:
if err := mgr.errorJob(err); err != nil {
return fmt.Errorf("unable to run error job: %v", err)
}
case <-ctx.Done():
if !shutdown {
shutdown = true
mgr.Logger.Noticef("shutdown scheduled in %v\n", mgr.ShutdownTimeout)
// defer shutdown so that all channels can be drained
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(context.Background(), mgr.ShutdownTimeout)
defer cancel()
continue
}
mgr.Logger.Debugf("manager shutdown\n")
os.Exit(0) // FIXME: return nil without hanging, unpredictable gh.com/google/ct-go fetcher shutdown?
}
}
}
func (mgr *Manager) startupConfig() error {
mgr.Logger.Debugf("startup configuring contains %d logs\n", len(mgr.Storage.LogList.Generate()))
for _, log := range mgr.Storage.LogList.Generate() {
state, err := mgr.GetMonitorState(log)
if err != nil {
return err
}
mgr.mconfigCh <- monitor.MonitoredLog{Config: log, State: state}
}
return nil
}
func (mgr *Manager) metadataJob(ctx context.Context) error {
mgr.Logger.Debugf("running metadata job\n")
added, removed, err := mgr.LogList.Update(ctx)
if err != nil {
if mgr.LogList.IsStale() {
return fmt.Errorf("unable to update log list which is now stale: %v", err)
}
}
mgr.removeLogs(removed)
mgr.addLogs(ctx, added)
return nil
}
func (mgr *Manager) removeLogs(logs []metadata.Log) {
mgr.Logger.Debugf("removing %d logs\n", len(logs))
for _, log := range logs {
state, _ := mgr.GetMonitorState(log)
mgr.Logger.Infof("removing log %s with %d entries in its backlog\n", log.URL, state.TreeSize-state.NextIndex)
mgr.mconfigCh <- monitor.MonitoredLog{Config: log}
}
}
func (mgr *Manager) addLogs(ctx context.Context, logs []metadata.Log) {
mgr.Logger.Debugf("adding %d logs\n", len(logs))
for _, log := range logs {
state, err := mgr.BootstrapLog(ctx, log, false)
if errors.Is(err, storage.ErrorMonitorStateExists) {
mgr.Logger.Infof("adding log %s with existing state on disk\n", log.URL)
} else if err != nil {
mgr.Logger.Noticef("restart required: failed to bootstrap new log %s: %v\n", log.URL, err)
} else {
mgr.Logger.Infof("bootstrapping log %s at next index 0\n", log.URL)
}
mgr.mconfigCh <- monitor.MonitoredLog{Config: log, State: state}
}
}
func (mgr *Manager) feedbackJob(events []feedback.Event) error {
mgr.Logger.Debugf("received feedback with %d events", len(events))
for _, ev := range events {
if err := mgr.AddChain(ev.NodeName, ev.PEMChain); err != nil {
return err
}
}
return nil
}
func (mgr *Manager) monitorJob(msg monitor.Event) error {
mgr.Logger.Debugf("new state for %s\n", msg.Summary())
if err := mgr.AddEntries(msg.State.LogID, msg.Matches); err != nil {
return err
}
return mgr.SetMonitorState(msg.State.LogID, msg.State)
}
func (mgr *Manager) alertJob() error {
alerts, err := mgr.Index.TriggerAlerts()
if err != nil {
return err
}
for _, alert := range alerts {
mgr.Logger.Noticef("certificate mis-issuance? No node submitted certificate %s\n", alert.StoredAt)
}
return nil
}
func (mgr *Manager) errorJob(err error) error {
mgr.Logger.Debugf("received error: %v\n", err)
return nil
}
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