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rpc.go
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rpc.go
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package rpc
import (
"context"
"github.com/libp2p/go-libp2p-core/peer"
ma "github.com/multiformats/go-multiaddr"
"github.com/textileio/powergate/net"
)
// RPC implements the rpc service.
type RPC struct {
UnimplementedRPCServiceServer
module net.Module
}
// New creates a new rpc service.
func New(m net.Module) *RPC {
return &RPC{module: m}
}
// ListenAddr calls module.ListenAddr.
func (a *RPC) ListenAddr(ctx context.Context, req *ListenAddrRequest) (*ListenAddrResponse, error) {
addrInfo, err := a.module.ListenAddr(ctx)
if err != nil {
return nil, err
}
addrs := make([]string, len(addrInfo.Addrs))
for i, addr := range addrInfo.Addrs {
addrs[i] = addr.String()
}
return &ListenAddrResponse{
AddrInfo: &PeerAddrInfo{
Id: addrInfo.ID.String(),
Addrs: addrs,
},
}, nil
}
// Peers calls module.Peers.
func (a *RPC) Peers(ctx context.Context, req *PeersRequest) (*PeersResponse, error) {
peers, err := a.module.Peers(ctx)
if err != nil {
return nil, err
}
peerResults := make([]*PeerInfo, len(peers))
for i, peer := range peers {
addrs := make([]string, len(peer.AddrInfo.Addrs))
for i, addr := range peer.AddrInfo.Addrs {
addrs[i] = addr.String()
}
peerResults[i] = &PeerInfo{
AddrInfo: &PeerAddrInfo{
Id: peer.AddrInfo.ID.String(),
Addrs: addrs,
},
}
if peer.Location != nil {
peerResults[i].Location = &Location{
Country: peer.Location.Country,
Latitude: peer.Location.Latitude,
Longitude: peer.Location.Longitude,
}
}
}
return &PeersResponse{
Peers: peerResults,
}, nil
}
// FindPeer calls module.FindPeer.
func (a *RPC) FindPeer(ctx context.Context, req *FindPeerRequest) (*FindPeerResponse, error) {
peerID, err := peer.Decode(req.PeerId)
if err != nil {
return nil, err
}
peerInfo, err := a.module.FindPeer(ctx, peerID)
if err != nil {
return nil, err
}
addrs := make([]string, len(peerInfo.AddrInfo.Addrs))
for i, addr := range peerInfo.AddrInfo.Addrs {
addrs[i] = addr.String()
}
var l *Location
if peerInfo.Location != nil {
l = &Location{
Country: peerInfo.Location.Country,
Latitude: peerInfo.Location.Latitude,
Longitude: peerInfo.Location.Longitude,
}
}
return &FindPeerResponse{
PeerInfo: &PeerInfo{
AddrInfo: &PeerAddrInfo{
Id: peerInfo.AddrInfo.ID.String(),
Addrs: addrs,
},
Location: l,
},
}, nil
}
// ConnectPeer calls module.ConnectPeer.
func (a *RPC) ConnectPeer(ctx context.Context, req *ConnectPeerRequest) (*ConnectPeerResponse, error) {
addrs := make([]ma.Multiaddr, len(req.PeerInfo.Addrs))
for i, addr := range req.PeerInfo.Addrs {
ma, err := ma.NewMultiaddr(addr)
if err != nil {
return nil, err
}
addrs[i] = ma
}
id, err := peer.Decode(req.PeerInfo.Id)
if err != nil {
return nil, err
}
addrInfo := peer.AddrInfo{
ID: id,
Addrs: addrs,
}
if err := a.module.ConnectPeer(ctx, addrInfo); err != nil {
return nil, err
}
return &ConnectPeerResponse{}, nil
}
// DisconnectPeer calls module.DisconnectPeer.
func (a *RPC) DisconnectPeer(ctx context.Context, req *DisconnectPeerRequest) (*DisconnectPeerResponse, error) {
peerID, err := peer.Decode(req.PeerId)
if err != nil {
return nil, err
}
if err := a.module.DisconnectPeer(ctx, peerID); err != nil {
return nil, err
}
return &DisconnectPeerResponse{}, nil
}
// Connectedness calls module.Connectedness.
func (a *RPC) Connectedness(ctx context.Context, req *ConnectednessRequest) (*ConnectednessResponse, error) {
peerID, err := peer.Decode(req.PeerId)
if err != nil {
return nil, err
}
con, err := a.module.Connectedness(ctx, peerID)
if err != nil {
return nil, err
}
var c Connectedness
switch con {
case net.CanConnect:
c = Connectedness_CONNECTEDNESS_CAN_CONNECT
case net.CannotConnect:
c = Connectedness_CONNECTEDNESS_CANNOT_CONNECT
case net.Connected:
c = Connectedness_CONNECTEDNESS_CONNECTED
case net.NotConnected:
c = Connectedness_CONNECTEDNESS_NOT_CONNECTED
case net.Error:
c = Connectedness_CONNECTEDNESS_ERROR
default:
c = Connectedness_CONNECTEDNESS_UNSPECIFIED
}
return &ConnectednessResponse{
Connectedness: c,
}, nil
}