func publish(ctx context.Context, n *core.IpfsNode, k crypto.PrivKey, ref path.Path, opts *publishOpts) (*IpnsEntry, error) {
if opts.verifyExists {
// verify the path exists
_, err := core.Resolve(ctx, n, ref)
if err != nil {
return nil, err
}
}
eol := time.Now().Add(opts.pubValidTime)
err := n.Namesys.PublishWithEOL(ctx, k, ref, eol)
if err != nil {
return nil, err
}
hash, err := k.GetPublic().Hash()
if err != nil {
return nil, err
}
return &IpnsEntry{
Name: key.Key(hash).String(),
Value: ref.String(),
}, nil
}
func CreateRoutingEntryData(pk ci.PrivKey, val path.Path, seq uint64, eol time.Time) (*pb.IpnsEntry, error) {
entry := new(pb.IpnsEntry)
entry.Value = []byte(val)
typ := pb.IpnsEntry_EOL
entry.ValidityType = &typ
entry.Sequence = proto.Uint64(seq)
entry.Validity = []byte(u.FormatRFC3339(eol))
sig, err := pk.Sign(ipnsEntryDataForSig(entry))
if err != nil {
return nil, err
}
entry.Signature = sig
return entry, nil
}
func PutRecordToRouting(ctx context.Context, k ci.PrivKey, value path.Path, seqnum uint64, eol time.Time, r routing.IpfsRouting, id peer.ID) error {
ctx, cancel := context.WithCancel(ctx)
defer cancel()
namekey, ipnskey := IpnsKeysForID(id)
entry, err := CreateRoutingEntryData(k, value, seqnum, eol)
if err != nil {
return err
}
ttl, ok := checkCtxTTL(ctx)
if ok {
entry.Ttl = proto.Uint64(uint64(ttl.Nanoseconds()))
}
errs := make(chan error, 2)
go func() {
errs <- PublishEntry(ctx, r, ipnskey, entry)
}()
go func() {
errs <- PublishPublicKey(ctx, r, namekey, k.GetPublic())
}()
err = waitOnErrChan(ctx, errs)
if err != nil {
return err
}
err = waitOnErrChan(ctx, errs)
if err != nil {
return err
}
return nil
}
// MakePutRecord creates and signs a dht record for the given key/value pair
func MakePutRecord(sk ci.PrivKey, key key.Key, value []byte, sign bool) (*pb.Record, error) {
record := new(pb.Record)
record.Key = proto.String(string(key))
record.Value = value
pkh, err := sk.GetPublic().Hash()
if err != nil {
return nil, err
}
record.Author = proto.String(string(pkh))
if sign {
blob := RecordBlobForSig(record)
sig, err := sk.Sign(blob)
if err != nil {
return nil, err
}
record.Signature = sig
}
return record, nil
}