// NewDHT creates a new DHT object with the given peer as the 'local' host
func NewDHT(ctx context.Context, h host.Host, dstore ds.ThreadSafeDatastore) *IpfsDHT {
dht := new(IpfsDHT)
dht.datastore = dstore
dht.self = h.ID()
dht.peerstore = h.Peerstore()
dht.host = h
// register for network notifs.
dht.host.Network().Notify((*netNotifiee)(dht))
dht.proc = goprocess.WithTeardown(func() error {
// remove ourselves from network notifs.
dht.host.Network().StopNotify((*netNotifiee)(dht))
return nil
})
dht.ctx = ctx
h.SetStreamHandler(ProtocolDHT, dht.handleNewStream)
dht.providers = NewProviderManager(dht.ctx, dht.self)
dht.proc.AddChild(dht.providers.proc)
goprocessctx.CloseAfterContext(dht.proc, ctx)
dht.routingTable = kb.NewRoutingTable(20, kb.ConvertPeerID(dht.self), time.Minute, dht.peerstore)
dht.birth = time.Now()
dht.Validator = make(record.Validator)
dht.Validator["pk"] = record.PublicKeyValidator
return dht
}
func MocknetTestRepo(p peer.ID, h host.Host, conf testutil.LatencyConfig, routing core.RoutingOption) core.ConfigOption {
return func(ctx context.Context) (*core.IpfsNode, error) {
const kWriteCacheElems = 100
const alwaysSendToPeer = true
dsDelay := delay.Fixed(conf.BlockstoreLatency)
r := &repo.Mock{
D: ds2.CloserWrap(syncds.MutexWrap(ds2.WithDelay(datastore.NewMapDatastore(), dsDelay))),
}
ds := r.Datastore()
n := &core.IpfsNode{
Peerstore: h.Peerstore(),
Repo: r,
PeerHost: h,
Identity: p,
}
dhtt, err := routing(ctx, n.PeerHost, n.Repo.Datastore())
if err != nil {
return nil, err
}
bsn := bsnet.NewFromIpfsHost(h, dhtt)
bstore, err := blockstore.WriteCached(blockstore.NewBlockstore(ds), kWriteCacheElems)
if err != nil {
return nil, err
}
exch := bitswap.New(ctx, p, bsn, bstore, alwaysSendToPeer)
n.Blockstore = bstore
n.Exchange = exch
n.Routing = dhtt
return n, nil
}
}
// NewDHT creates a new DHT object with the given peer as the 'local' host
func NewDHT(ctx context.Context, h host.Host, dstore ds.ThreadSafeDatastore) *IpfsDHT {
dht := new(IpfsDHT)
dht.datastore = dstore
dht.self = h.ID()
dht.peerstore = h.Peerstore()
dht.host = h
// register for network notifs.
dht.host.Network().Notify((*netNotifiee)(dht))
dht.ContextGroup = ctxgroup.WithContextAndTeardown(ctx, func() error {
// remove ourselves from network notifs.
dht.host.Network().StopNotify((*netNotifiee)(dht))
return nil
})
h.SetStreamHandler(ProtocolDHT, dht.handleNewStream)
dht.providers = NewProviderManager(dht.Context(), dht.self)
dht.AddChild(dht.providers)
dht.routingTable = kb.NewRoutingTable(20, kb.ConvertPeerID(dht.self), time.Minute, dht.peerstore)
dht.birth = time.Now()
dht.Validator = make(record.Validator)
dht.Validator["pk"] = record.PublicKeyValidator
if doPinging {
dht.Children().Add(1)
go dht.PingRoutine(time.Second * 10)
}
return dht
}
func testHasProtocolVersions(t *testing.T, h host.Host, p peer.ID) {
v, err := h.Peerstore().Get(p, "ProtocolVersion")
if v == nil {
t.Error("no protocol version")
return
}
if v.(string) != identify.IpfsVersion {
t.Error("protocol mismatch", err)
}
v, err = h.Peerstore().Get(p, "AgentVersion")
if v.(string) != identify.ClientVersion {
t.Error("agent version mismatch", err)
}
}
func bootstrapConnect(ctx context.Context, ph host.Host, peers []peer.PeerInfo) error {
if len(peers) < 1 {
return ErrNotEnoughBootstrapPeers
}
errs := make(chan error, len(peers))
var wg sync.WaitGroup
for _, p := range peers {
// performed asynchronously because when performed synchronously, if
// one `Connect` call hangs, subsequent calls are more likely to
// fail/abort due to an expiring context.
// Also, performed asynchronously for dial speed.
wg.Add(1)
go func(p peer.PeerInfo) {
defer wg.Done()
defer log.EventBegin(ctx, "bootstrapDial", ph.ID(), p.ID).Done()
log.Debugf("%s bootstrapping to %s", ph.ID(), p.ID)
ph.Peerstore().AddAddrs(p.ID, p.Addrs, peer.PermanentAddrTTL)
if err := ph.Connect(ctx, p); err != nil {
log.Event(ctx, "bootstrapDialFailed", p.ID)
log.Debugf("failed to bootstrap with %v: %s", p.ID, err)
errs <- err
return
}
log.Event(ctx, "bootstrapDialSuccess", p.ID)
log.Infof("bootstrapped with %v", p.ID)
}(p)
}
wg.Wait()
// our failure condition is when no connection attempt succeeded.
// So drain the errs channel, counting the results.
close(errs)
count := 0
var err error
for err = range errs {
if err != nil {
count++
}
}
if count == len(peers) {
return fmt.Errorf("failed to bootstrap. %s", err)
}
return nil
}
func testKnowsAddrs(t *testing.T, h host.Host, p peer.ID, expected []ma.Multiaddr) {
actual := h.Peerstore().Addrs(p)
if len(actual) != len(expected) {
t.Error("dont have the same addresses")
}
have := map[string]struct{}{}
for _, addr := range actual {
have[addr.String()] = struct{}{}
}
for _, addr := range expected {
if _, found := have[addr.String()]; !found {
t.Errorf("%s did not have addr for %s: %s", h.ID(), p, addr)
// panic("ahhhhhhh")
}
}
}