示例#1
0
// NewMockNode constructs an IpfsNode for use in tests.
func NewMockNode() (*core.IpfsNode, error) {
	ctx := context.Background()

	// effectively offline, only peer in its network
	return core.NewNode(ctx, &core.BuildCfg{
		Online: true,
		Host:   MockHostOption(mocknet.New(ctx)),
	})
}
示例#2
0
文件: mock.go 项目: hebelken/go-ipfs
// NewMockNode constructs an IpfsNode for use in tests.
func NewMockNode() (*core.IpfsNode, error) {
	ctx := context.Background()

	// Generate Identity
	ident, err := testutil.RandIdentity()
	if err != nil {
		return nil, err
	}
	p := ident.ID()

	c := config.Config{
		Identity: config.Identity{
			PeerID: p.String(),
		},
	}

	nd, err := core.Offline(&repo.Mock{
		C: c,
		D: ds2.CloserWrap(syncds.MutexWrap(datastore.NewMapDatastore())),
	})(ctx)
	if err != nil {
		return nil, err
	}

	nd.PrivateKey = ident.PrivateKey()
	nd.Peerstore = peer.NewPeerstore()
	nd.Peerstore.AddPrivKey(p, ident.PrivateKey())
	nd.Peerstore.AddPubKey(p, ident.PublicKey())
	nd.Identity = p

	nd.PeerHost, err = mocknet.New(nd.Context()).AddPeer(ident.PrivateKey(), ident.Address()) // effectively offline
	if err != nil {
		return nil, err
	}

	// Routing
	nd.Routing = offrt.NewOfflineRouter(nd.Repo.Datastore(), nd.PrivateKey)

	// Bitswap
	bstore := blockstore.NewBlockstore(nd.Repo.Datastore())
	bserv, err := blockservice.New(bstore, offline.Exchange(bstore))
	if err != nil {
		return nil, err
	}

	nd.DAG = mdag.NewDAGService(bserv)

	nd.Pinning = pin.NewPinner(nd.Repo.Datastore(), nd.DAG)

	// Namespace resolver
	nd.Namesys = nsys.NewNameSystem(nd.Routing)

	// Path resolver
	nd.Resolver = &path.Resolver{DAG: nd.DAG}

	return nd, nil
}
示例#3
0
func InitializeSupernodeNetwork(
	ctx context.Context,
	numServers, numClients int,
	conf testutil.LatencyConfig) ([]*core.IpfsNode, []*core.IpfsNode, error) {

	// create network
	mn := mocknet.New(ctx)

	mn.SetLinkDefaults(mocknet.LinkOptions{
		Latency:   conf.NetworkLatency,
		Bandwidth: math.MaxInt32,
	})

	routingDatastore := ds2.CloserWrap(syncds.MutexWrap(datastore.NewMapDatastore()))
	var servers []*core.IpfsNode
	for i := 0; i < numServers; i++ {
		bootstrap, err := core.NewNode(ctx, &core.BuildCfg{
			Online:  true,
			Host:    mock.MockHostOption(mn),
			Routing: corerouting.SupernodeServer(routingDatastore),
		})
		if err != nil {
			return nil, nil, err
		}
		servers = append(servers, bootstrap)
	}

	var bootstrapInfos []peer.PeerInfo
	for _, n := range servers {
		info := n.Peerstore.PeerInfo(n.PeerHost.ID())
		bootstrapInfos = append(bootstrapInfos, info)
	}

	var clients []*core.IpfsNode
	for i := 0; i < numClients; i++ {
		n, err := core.NewNode(ctx, &core.BuildCfg{
			Online:  true,
			Host:    mock.MockHostOption(mn),
			Routing: corerouting.SupernodeClient(bootstrapInfos...),
		})
		if err != nil {
			return nil, nil, err
		}
		clients = append(clients, n)
	}
	mn.LinkAll()

	bcfg := core.BootstrapConfigWithPeers(bootstrapInfos)
	for _, n := range clients {
		if err := n.Bootstrap(bcfg); err != nil {
			return nil, nil, err
		}
	}
	return servers, clients, nil
}
示例#4
0
文件: main.go 项目: rht/bssim
//  Creates test network using delays in config
//  Returns a fully connected mocknet and an array of the instances in the network
func createTestNetwork() (mocknet.Mocknet, []bs.Instance) {
	vv := convertTimeField("visibility_delay")
	q := convertTimeField("query_delay")
	//md := convertTimeField("message_delay")

	delayCfg := mockrouting.DelayConfig{ValueVisibility: vv, Query: q}
	n, err := strconv.Atoi(config["node_count"])
	check(err)
	mn := mocknet.New(context.Background())
	snet, err := tn.StreamNet(context.Background(), mn, mockrouting.NewServerWithDelay(delayCfg))
	check(err)
	instances := genInstances(n, &mn, &snet)
	return mn, instances
}
示例#5
0
func DirectAddCat(data []byte, conf testutil.LatencyConfig) error {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	// create network
	mn := mocknet.New(ctx)
	mn.SetLinkDefaults(mocknet.LinkOptions{
		Latency: conf.NetworkLatency,
		// TODO add to conf. This is tricky because we want 0 values to be functional.
		Bandwidth: math.MaxInt32,
	})

	adder, err := core.NewNode(ctx, &core.BuildCfg{
		Online: true,
		Host:   mock.MockHostOption(mn),
	})
	if err != nil {
		return err
	}
	defer adder.Close()

	catter, err := core.NewNode(ctx, &core.BuildCfg{
		Online: true,
		Host:   mock.MockHostOption(mn),
	})
	if err != nil {
		return err
	}
	defer catter.Close()

	err = mn.LinkAll()
	if err != nil {
		return err
	}

	bs1 := []peer.PeerInfo{adder.Peerstore.PeerInfo(adder.Identity)}
	bs2 := []peer.PeerInfo{catter.Peerstore.PeerInfo(catter.Identity)}

	if err := catter.Bootstrap(core.BootstrapConfigWithPeers(bs1)); err != nil {
		return err
	}
	if err := adder.Bootstrap(core.BootstrapConfigWithPeers(bs2)); err != nil {
		return err
	}

	added, err := coreunix.Add(adder, bytes.NewReader(data))
	if err != nil {
		return err
	}

	readerCatted, err := coreunix.Cat(catter, added)
	if err != nil {
		return err
	}

	// verify
	bufout := new(bytes.Buffer)
	io.Copy(bufout, readerCatted)
	if 0 != bytes.Compare(bufout.Bytes(), data) {
		return errors.New("catted data does not match added data")
	}
	return nil
}
示例#6
0
func TestRepublish(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	// create network
	mn := mocknet.New(ctx)

	var nodes []*core.IpfsNode
	for i := 0; i < 10; i++ {
		nd, err := core.NewNode(ctx, &core.BuildCfg{
			Online: true,
			Host:   mock.MockHostOption(mn),
		})
		if err != nil {
			t.Fatal(err)
		}

		nodes = append(nodes, nd)
	}

	mn.LinkAll()

	bsinf := core.BootstrapConfigWithPeers(
		[]peer.PeerInfo{
			nodes[0].Peerstore.PeerInfo(nodes[0].Identity),
		},
	)

	for _, n := range nodes[1:] {
		if err := n.Bootstrap(bsinf); err != nil {
			t.Fatal(err)
		}
	}

	// have one node publish a record that is valid for 1 second
	publisher := nodes[3]
	p := path.FromString("/ipfs/QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn") // does not need to be valid
	rp := namesys.NewRoutingPublisher(publisher.Routing, publisher.Repo.Datastore())
	err := rp.PublishWithEOL(ctx, publisher.PrivateKey, p, time.Now().Add(time.Second))
	if err != nil {
		t.Fatal(err)
	}

	name := "/ipns/" + publisher.Identity.Pretty()
	if err := verifyResolution(nodes, name, p); err != nil {
		t.Fatal(err)
	}

	// Now wait a second, the records will be invalid and we should fail to resolve
	time.Sleep(time.Second)
	if err := verifyResolutionFails(nodes, name); err != nil {
		t.Fatal(err)
	}

	// The republishers that are contained within the nodes have their timeout set
	// to 12 hours. Instead of trying to tweak those, we're just going to pretend
	// they dont exist and make our own.
	repub := NewRepublisher(publisher.Routing, publisher.Repo.Datastore(), publisher.Peerstore)
	repub.Interval = time.Second
	repub.RecordLifetime = time.Second * 5
	repub.AddName(publisher.Identity)

	proc := goprocess.Go(repub.Run)
	defer proc.Close()

	// now wait a couple seconds for it to fire
	time.Sleep(time.Second * 2)

	// we should be able to resolve them now
	if err := verifyResolution(nodes, name, p); err != nil {
		t.Fatal(err)
	}
}
func TestBitswapWithoutRouting(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	const numPeers = 4

	// create network
	mn := mocknet.New(ctx)

	var nodes []*core.IpfsNode
	for i := 0; i < numPeers; i++ {
		n, err := core.NewNode(ctx, &core.BuildCfg{
			Online:  true,
			Host:    coremock.MockHostOption(mn),
			Routing: core.NilRouterOption, // no routing
		})
		if err != nil {
			t.Fatal(err)
		}
		defer n.Close()
		nodes = append(nodes, n)
	}

	mn.LinkAll()

	// connect them
	for _, n1 := range nodes {
		for _, n2 := range nodes {
			if n1 == n2 {
				continue
			}

			log.Debug("connecting to other hosts")
			p2 := n2.PeerHost.Peerstore().PeerInfo(n2.PeerHost.ID())
			if err := n1.PeerHost.Connect(ctx, p2); err != nil {
				t.Fatal(err)
			}
		}
	}

	// add blocks to each before
	log.Debug("adding block.")
	block0 := blocks.NewBlock([]byte("block0"))
	block1 := blocks.NewBlock([]byte("block1"))

	// put 1 before
	if err := nodes[0].Blockstore.Put(block0); err != nil {
		t.Fatal(err)
	}

	//  get it out.
	for i, n := range nodes {
		// skip first because block not in its exchange. will hang.
		if i == 0 {
			continue
		}

		log.Debugf("%d %s get block.", i, n.Identity)
		b, err := n.Blocks.GetBlock(ctx, block0.Key())
		if err != nil {
			t.Error(err)
		} else if !bytes.Equal(b.Data, block0.Data) {
			t.Error("byte comparison fail")
		} else {
			log.Debug("got block: %s", b.Key())
		}
	}

	// put 1 after
	if err := nodes[1].Blockstore.Put(block1); err != nil {
		t.Fatal(err)
	}

	//  get it out.
	for _, n := range nodes {
		b, err := n.Blocks.GetBlock(ctx, block1.Key())
		if err != nil {
			t.Error(err)
		} else if !bytes.Equal(b.Data, block1.Data) {
			t.Error("byte comparison fail")
		} else {
			log.Debug("got block: %s", b.Key())
		}
	}
}