// NewIpfsNode constructs a new IpfsNode based on the given config.
func NewIpfsNode(cfg *config.Config, online bool) (*IpfsNode, error) {
if cfg == nil {
return nil, fmt.Errorf("configuration required")
}
d, err := makeDatastore(cfg.Datastore)
if err != nil {
return nil, err
}
local, err := initIdentity(cfg)
if err != nil {
return nil, err
}
var (
net *swarm.Swarm
peers *peer.Map
// TODO: refactor so we can use IpfsRouting interface instead of being DHT-specific
route *dht.IpfsDHT
swap *bitswap.BitSwap
)
if online {
net = swarm.NewSwarm(local)
err = net.Listen()
if err != nil {
return nil, err
}
peers = &peer.Map{}
route = dht.NewDHT(local, net, d)
route.Start()
swap = bitswap.NewBitSwap(local, net, d, route)
swap.SetStrategy(bitswap.YesManStrategy)
go initConnections(cfg, peers, route)
}
bs, err := bserv.NewBlockService(d, swap)
if err != nil {
return nil, err
}
dag := &merkledag.DAGService{Blocks: bs}
return &IpfsNode{
Config: cfg,
PeerMap: peers,
Datastore: d,
Blocks: bs,
DAG: dag,
Resolver: &path.Resolver{DAG: dag},
BitSwap: swap,
Identity: local,
Routing: route,
}, nil
}
func initConnections(cfg *config.Config, peers *peer.Map, route *dht.IpfsDHT) {
for _, sp := range cfg.Peers {
maddr, err := ma.NewMultiaddr(sp.Address)
if err != nil {
u.PErr("error: %v\n", err)
continue
}
p, err := route.Connect(maddr)
if err != nil {
u.PErr("Bootstrapping error: %v\n", err)
}
(*peers)[p.Key()] = p
}
}