func (c *offlineRouting) PutValue(ctx context.Context, key string, val []byte) error {
rec, err := record.MakePutRecord(c.sk, key, val, false)
if err != nil {
return err
}
data, err := proto.Marshal(rec)
if err != nil {
return err
}
return c.datastore.Put(dshelp.NewKeyFromBinary(key), data)
}
func putRoutingRecord(ds datastore.Datastore, k string, value *pb.Record) error {
data, err := proto.Marshal(value)
if err != nil {
return err
}
dskey := dshelp.NewKeyFromBinary([]byte(k))
// TODO namespace
if err := ds.Put(dskey, data); err != nil {
return err
}
return nil
}
// FIXME(brian): is this method meant to simulate putting a value into the network?
func (c *client) PutValue(ctx context.Context, key string, val []byte) error {
log.Debugf("PutValue: %s", key)
rec := new(dhtpb.Record)
rec.Value = val
rec.Key = proto.String(string(key))
rec.TimeReceived = proto.String(u.FormatRFC3339(time.Now()))
data, err := proto.Marshal(rec)
if err != nil {
return err
}
return c.datastore.Put(dshelp.NewKeyFromBinary(key), data)
}
func getRoutingRecord(ds datastore.Datastore, k string) (*pb.Record, error) {
dskey := dshelp.NewKeyFromBinary([]byte(k))
val, err := ds.Get(dskey)
if err != nil {
return nil, err
}
recordBytes, ok := val.([]byte)
if !ok {
return nil, fmt.Errorf("datastore had non byte-slice value for %v", dskey)
}
var record pb.Record
if err := proto.Unmarshal(recordBytes, &record); err != nil {
return nil, errors.New("failed to unmarshal dht record from datastore")
}
return &record, nil
}
func (c *offlineRouting) GetValue(ctx context.Context, key string) ([]byte, error) {
v, err := c.datastore.Get(dshelp.NewKeyFromBinary(key))
if err != nil {
return nil, err
}
byt, ok := v.([]byte)
if !ok {
return nil, errors.New("value stored in datastore not []byte")
}
rec := new(pb.Record)
err = proto.Unmarshal(byt, rec)
if err != nil {
return nil, err
}
return rec.GetValue(), nil
}
// FIXME(brian): is this method meant to simulate getting a value from the network?
func (c *client) GetValue(ctx context.Context, key string) ([]byte, error) {
log.Debugf("GetValue: %s", key)
v, err := c.datastore.Get(dshelp.NewKeyFromBinary(key))
if err != nil {
return nil, err
}
data, ok := v.([]byte)
if !ok {
return nil, errors.New("could not cast value from datastore")
}
rec := new(dhtpb.Record)
err = proto.Unmarshal(data, rec)
if err != nil {
return nil, err
}
return rec.GetValue(), nil
}
func (p *ipnsPublisher) getPreviousSeqNo(ctx context.Context, ipnskey string) (uint64, error) {
prevrec, err := p.ds.Get(dshelp.NewKeyFromBinary(ipnskey))
if err != nil && err != ds.ErrNotFound {
// None found, lets start at zero!
return 0, err
}
var val []byte
if err == nil {
prbytes, ok := prevrec.([]byte)
if !ok {
return 0, fmt.Errorf("unexpected type returned from datastore: %#v", prevrec)
}
dhtrec := new(dhtpb.Record)
err := proto.Unmarshal(prbytes, dhtrec)
if err != nil {
return 0, err
}
val = dhtrec.GetValue()
} else {
// try and check the dht for a record
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
rv, err := p.routing.GetValue(ctx, ipnskey)
if err != nil {
// no such record found, start at zero!
return 0, nil
}
val = rv
}
e := new(pb.IpnsEntry)
err = proto.Unmarshal(val, e)
if err != nil {
return 0, err
}
return e.GetSequence(), nil
}
func (rp *Republisher) getLastVal(k string) (path.Path, uint64, error) {
ival, err := rp.ds.Get(dshelp.NewKeyFromBinary([]byte(k)))
if err != nil {
// not found means we dont have a previously published entry
return "", 0, errNoEntry
}
val := ival.([]byte)
dhtrec := new(recpb.Record)
err = proto.Unmarshal(val, dhtrec)
if err != nil {
return "", 0, err
}
// extract published data from record
e := new(pb.IpnsEntry)
err = proto.Unmarshal(dhtrec.GetValue(), e)
if err != nil {
return "", 0, err
}
return path.Path(e.Value), e.GetSequence(), nil
}
