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metadata.go
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metadata.go
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package auth
import (
"context"
"encoding/base64"
"errors"
"runtime"
"strconv"
"time"
"github.com/google/uuid"
"github.com/treeverse/lakefs/pkg/auth/model"
"github.com/treeverse/lakefs/pkg/kv"
)
const (
InstallationIDKeyName = "installation_id"
SetupTimestampKeyName = "setup_timestamp"
CommPrefsSetKeyName = "comm_prefs_set"
EmailKeyName = "encoded_user_email"
FeatureUpdatesKeyName = "feature_updates"
SecurityUpdatesKeyName = "security_updates"
)
type SetupStateName string
const (
SetupStateInitialized SetupStateName = "initialized"
SetupStateNotInitialized SetupStateName = "not_initialized"
SetupStateCommPrefsDone SetupStateName = "comm_prefs_done"
)
//nolint:gochecknoinits
func init() {
kv.MustRegisterType("auth", InstallationIDKeyName, nil)
kv.MustRegisterType("auth", SetupTimestampKeyName, nil)
}
type MetadataManager interface {
IsInitialized(ctx context.Context) (bool, error)
GetSetupState(ctx context.Context, emailSubscriptionEnabled bool) (SetupStateName, error)
UpdateCommPrefs(ctx context.Context, commPrefs CommPrefs) (string, error)
UpdateSetupTimestamp(context.Context, time.Time) error
Write(context.Context) (map[string]string, error)
}
type KVMetadataManager struct {
version string
kvType string
installationID string
store kv.Store
}
type CommPrefs struct {
UserEmail string
FeatureUpdates bool
SecurityUpdates bool
InstallationID string
}
func NewKVMetadataManager(version, fixedInstallationID, kvType string, store kv.Store) *KVMetadataManager {
return &KVMetadataManager{
version: version,
kvType: kvType,
installationID: generateInstallationID(fixedInstallationID),
store: store,
}
}
func generateInstallationID(installationID string) string {
if installationID == "" {
installationID = uuid.New().String()
}
return installationID
}
func (m *KVMetadataManager) insertOrGetInstallationID(ctx context.Context, installationID string) (string, error) {
err := m.store.SetIf(ctx, []byte(model.PartitionKey), []byte(InstallationIDKeyName), []byte(installationID), nil)
if err != nil {
if errors.Is(err, kv.ErrPredicateFailed) {
valWithPred, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(InstallationIDKeyName))
if err != nil {
return "", err
}
return string(valWithPred.Value), nil
}
return "", err
}
return installationID, nil
}
func (m *KVMetadataManager) getSetupTimestamp(ctx context.Context) (time.Time, error) {
valWithPred, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(model.MetadataKeyPath(SetupTimestampKeyName)))
if err != nil {
return time.Time{}, err
}
return time.Parse(time.RFC3339, string(valWithPred.Value))
}
func (m *KVMetadataManager) GetCommPrefs(ctx context.Context) (CommPrefs, error) {
email, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(model.MetadataKeyPath(EmailKeyName)))
if err != nil {
return CommPrefs{}, err
}
featureUpdates, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(model.MetadataKeyPath(FeatureUpdatesKeyName)))
if err != nil {
return CommPrefs{}, err
}
securityUpdates, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(model.MetadataKeyPath(SecurityUpdatesKeyName)))
if err != nil {
return CommPrefs{}, err
}
hasFeatureUpdates, err := strconv.ParseBool(string(featureUpdates.Value))
if err != nil {
return CommPrefs{}, err
}
hasSecurityUpdates, err := strconv.ParseBool(string(securityUpdates.Value))
if err != nil {
return CommPrefs{}, err
}
return CommPrefs{
UserEmail: string(email.Value),
FeatureUpdates: hasFeatureUpdates,
SecurityUpdates: hasSecurityUpdates,
}, nil
}
func (m *KVMetadataManager) areCommPrefsSet(ctx context.Context) (bool, error) {
commPrefsSet, err := m.store.Get(ctx, []byte(model.PartitionKey), []byte(model.MetadataKeyPath(CommPrefsSetKeyName)))
if err != nil {
return false, err
}
commPrefsSetBool, err := strconv.ParseBool(string(commPrefsSet.Value))
if err != nil {
return false, err
}
return commPrefsSetBool, nil
}
func (m *KVMetadataManager) GetSetupState(ctx context.Context, emailSubscriptionEnabled bool) (SetupStateName, error) {
// for backwards compatibility (i.e. so existing instances don't need to go through setup again)
// we first check if the setup timestamp has already been set
isInitialized, err := m.IsInitialized(ctx)
if err != nil {
return "", err
}
if isInitialized {
return SetupStateInitialized, nil
}
// if this feature is disabled, skip this step
if emailSubscriptionEnabled {
commPrefsSet, err := m.areCommPrefsSet(ctx)
if err != nil || !commPrefsSet {
return SetupStateNotInitialized, nil
}
}
return SetupStateCommPrefsDone, nil
}
func (m *KVMetadataManager) writeMetadata(ctx context.Context, items map[string]string) error {
for key, value := range items {
kvKey := model.MetadataKeyPath(key)
err := m.store.Set(ctx, []byte(model.PartitionKey), []byte(kvKey), []byte(value))
if err != nil {
return err
}
}
return nil
}
func (m *KVMetadataManager) UpdateSetupTimestamp(ctx context.Context, ts time.Time) error {
return m.writeMetadata(ctx, map[string]string{
SetupTimestampKeyName: ts.UTC().Format(time.RFC3339),
})
}
func (m *KVMetadataManager) UpdateCommPrefs(ctx context.Context, commPrefs CommPrefs) (string, error) {
encodedEmail := ""
if commPrefs.UserEmail != "" {
encodedEmail = base64.StdEncoding.EncodeToString([]byte(commPrefs.UserEmail))
}
return m.installationID, m.writeMetadata(ctx, map[string]string{
EmailKeyName: encodedEmail,
FeatureUpdatesKeyName: strconv.FormatBool(commPrefs.FeatureUpdates),
SecurityUpdatesKeyName: strconv.FormatBool(commPrefs.SecurityUpdates),
CommPrefsSetKeyName: strconv.FormatBool(true),
})
}
func (m *KVMetadataManager) IsInitialized(ctx context.Context) (bool, error) {
setupTimestamp, err := m.getSetupTimestamp(ctx)
if err != nil {
if errors.Is(err, kv.ErrNotFound) {
return false, nil
}
return false, err
}
return !setupTimestamp.IsZero(), nil
}
func (m *KVMetadataManager) Write(ctx context.Context) (map[string]string, error) {
metadata := make(map[string]string)
metadata["lakefs_version"] = m.version
metadata["lakefs_kv_type"] = m.kvType
metadata["golang_version"] = runtime.Version()
metadata["architecture"] = runtime.GOARCH
metadata["os"] = runtime.GOOS
err := m.writeMetadata(ctx, metadata)
if err != nil {
return nil, err
}
// write installation id
m.installationID, err = m.insertOrGetInstallationID(ctx, m.installationID)
if err == nil {
metadata[InstallationIDKeyName] = m.installationID
}
setupTS, err := m.getSetupTimestamp(ctx)
if err == nil {
metadata[SetupTimestampKeyName] = setupTS.UTC().Format(time.RFC3339)
}
return metadata, err
}