// PublicRPC : Entrypoint for RPC functions that are exposed to the public/Internet
func (node *Node) PublicRPC(method string, args ...string) (string, error) {
switch method {
case "ID":
var i bc.PubKey
i, err := node.ID()
if err != nil {
return "", err
}
return i.ToB64(), nil
case "Pickup":
if len(args) < 2 {
return "", errors.New("Invalid argument count.")
}
var i int64
i, err := strconv.ParseInt(args[1], 10, 64)
if err != nil {
return "", errors.New("Invalid argument.")
}
rpk := node.routingKey.GetPubKey().Clone()
if err := rpk.FromB64(args[0]); err != nil {
return "", errors.New("Invalid argument.")
}
b, err := node.Pickup(rpk, i, args[2:]...)
if err != nil {
return "", errors.New("Invalid argument.")
}
var j []byte
if j, err = json.Marshal(b); err != nil {
return "", err
}
return string(j), err
case "Dropoff":
if len(args) < 1 {
return "", errors.New("Invalid argument count.")
}
var bundle api.Bundle
if err := json.Unmarshal([]byte(args[0]), &bundle); err != nil {
return "", errors.New("JSON Decode Error in Dropoff RPC Bundle Unpack")
}
return "", node.Dropoff(bundle)
default:
return "", errors.New("No such method: " + method)
}
}
// pollServer will keep trying until either we get a result or the timeout expires
func (p *Poll) pollServer(transport api.Transport, node api.Node, host string, pubsrv bc.PubKey) (bool, error) {
// Pickup Local
rpubkey, err := transport.RPC(host, "ID")
if err != nil {
return false, err
}
rpk := pubsrv.Clone()
if err := rpk.FromB64(string(rpubkey)); err != nil {
return false, err
}
toRemoteRaw, err := node.Pickup(rpk, p.lastPollLocal)
if err != nil {
return false, err
}
// Pickup Remote
toLocalRaw, err := transport.RPC(host, "Pickup", pubsrv.ToB64(), strconv.FormatInt(p.lastPollRemote, 10))
if err != nil {
return false, err
}
var toLocal api.Bundle
if err := json.Unmarshal(toLocalRaw, &toLocal); err != nil {
return false, err
}
p.lastPollLocal = toRemoteRaw.Time
p.lastPollRemote = toLocal.Time
toRemote, err := json.Marshal(toRemoteRaw)
if err != nil {
return false, err
}
// Dropoff Remote
if len(toRemoteRaw.Data) > 0 {
if _, err := transport.RPC(host, "Dropoff", string(toRemote)); err != nil {
return false, err
}
}
// Dropoff Local
if len(toLocal.Data) > 0 {
if err := node.Dropoff(toLocal); err != nil {
return false, err
}
}
return true, nil
}