// putProvider sends a message to peer 'p' saying that the local node
// can provide the value of 'key'
func (dht *IpfsDHT) putProvider(ctx context.Context, p peer.ID, skey string) error {
// add self as the provider
pi := peer.PeerInfo{
ID: dht.self,
Addrs: dht.host.Addrs(),
}
// // only share WAN-friendly addresses ??
// pi.Addrs = addrutil.WANShareableAddrs(pi.Addrs)
if len(pi.Addrs) < 1 {
// log.Infof("%s putProvider: %s for %s error: no wan-friendly addresses", dht.self, p, key.Key(key), pi.Addrs)
return fmt.Errorf("no known addresses for self. cannot put provider.")
}
pmes := pb.NewMessage(pb.Message_ADD_PROVIDER, skey, 0)
pmes.ProviderPeers = pb.RawPeerInfosToPBPeers([]peer.PeerInfo{pi})
err := dht.sendMessage(ctx, p, pmes)
if err != nil {
return err
}
log.Debugf("%s putProvider: %s for %s (%s)", dht.self, p, key.Key(skey), pi.Addrs)
return nil
}
func putPointer(ctx context.Context, peerHosts host.Host, p peer.ID, pi peer.PeerInfo, skey string) error {
pmes := pb.NewMessage(pb.Message_ADD_PROVIDER, skey, 0)
pmes.ProviderPeers = pb.RawPeerInfosToPBPeers([]peer.PeerInfo{pi})
err := sendMessage(ctx, peerHosts, p, pmes)
if err != nil {
return err
}
return nil
}
func (dht *IpfsDHT) makeProvRecord(skey key.Key) (*pb.Message, error) {
pi := pstore.PeerInfo{
ID: dht.self,
Addrs: dht.host.Addrs(),
}
// // only share WAN-friendly addresses ??
// pi.Addrs = addrutil.WANShareableAddrs(pi.Addrs)
if len(pi.Addrs) < 1 {
return nil, fmt.Errorf("no known addresses for self. cannot put provider.")
}
pmes := pb.NewMessage(pb.Message_ADD_PROVIDER, string(skey), 0)
pmes.ProviderPeers = pb.RawPeerInfosToPBPeers([]pstore.PeerInfo{pi})
return pmes, nil
}