Exemplo n.º 1
0
func GetDAGServ(t testing.TB) dag.DAGService {
	dstore := ds.NewMapDatastore()
	bserv, err := bsrv.NewBlockService(dstore, nil)
	if err != nil {
		t.Fatal(err)
	}
	return dag.NewDAGService(bserv)
}
func getMockDagServ(t *testing.T) mdag.DAGService {
	dstore := ds.NewMapDatastore()
	bserv, err := bs.NewBlockService(dstore, nil)
	if err != nil {
		t.Fatal(err)
	}
	return mdag.NewDAGService(bserv)
}
Exemplo n.º 3
0
// NewMockNode constructs an IpfsNode for use in tests.
func NewMockNode() (*IpfsNode, error) {
	nd := new(IpfsNode)

	// Generate Identity
	sk, pk, err := ci.GenerateKeyPair(ci.RSA, 1024)
	if err != nil {
		return nil, err
	}

	p, err := peer.WithKeyPair(sk, pk)
	if err != nil {
		return nil, err
	}

	nd.Peerstore = peer.NewPeerstore()
	nd.Identity, err = nd.Peerstore.Add(p)
	if err != nil {
		return nil, err
	}

	// Temp Datastore
	dstore := ds.NewMapDatastore()
	nd.Datastore = util.CloserWrap(syncds.MutexWrap(dstore))

	// Routing
	dht := mdht.NewMockRouter(nd.Identity, nd.Datastore)
	nd.Routing = dht

	// Bitswap
	//??

	bserv, err := bs.NewBlockService(nd.Datastore, nil)
	if err != nil {
		return nil, err
	}

	nd.DAG = mdag.NewDAGService(bserv)

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

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

	return nd, nil
}
Exemplo n.º 4
0
func TestPinnerBasic(t *testing.T) {
	dstore := ds.NewMapDatastore()
	bserv, err := bs.NewBlockService(dstore, nil)
	if err != nil {
		t.Fatal(err)
	}

	dserv := mdag.NewDAGService(bserv)

	p := NewPinner(dstore, dserv)

	a, ak := randNode()

	// Pin A{}
	err = p.Pin(a, false)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ak) {
		t.Fatal("Failed to find key")
	}

	b, _ := randNode()
	err = b.AddNodeLink("child", a)
	if err != nil {
		t.Fatal(err)
	}

	c, ck := randNode()
	err = b.AddNodeLink("otherchild", c)
	if err != nil {
		t.Fatal(err)
	}

	// recursively pin B{A,C}
	err = p.Pin(b, true)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ck) {
		t.Fatal("Child of recursively pinned node not found")
	}

	bk, _ := b.Key()
	if !p.IsPinned(bk) {
		t.Fatal("Recursively pinned node not found..")
	}

	d, _ := randNode()
	d.AddNodeLink("a", a)
	d.AddNodeLink("c", c)

	e, ek := randNode()
	d.AddNodeLink("e", e)

	// Must be in dagserv for unpin to work
	err = dserv.AddRecursive(d)
	if err != nil {
		t.Fatal(err)
	}

	// Add D{A,C,E}
	err = p.Pin(d, true)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ek) {
		t.Fatal(err)
	}

	dk, _ := d.Key()
	if !p.IsPinned(dk) {
		t.Fatal("pinned node not found.")
	}

	// Test recursive unpin
	err = p.Unpin(dk, true)
	if err != nil {
		t.Fatal(err)
	}

	// c should still be pinned under b
	if !p.IsPinned(ck) {
		t.Fatal("Recursive / indirect unpin fail.")
	}

	err = p.Flush()
	if err != nil {
		t.Fatal(err)
	}

	np, err := LoadPinner(dstore, dserv)
	if err != nil {
		t.Fatal(err)
	}

	// Test directly pinned
	if !np.IsPinned(ak) {
		t.Fatal("Could not find pinned node!")
	}

	// Test indirectly pinned
	if !np.IsPinned(ck) {
		t.Fatal("could not find indirectly pinned node")
	}

	// Test recursively pinned
	if !np.IsPinned(bk) {
		t.Fatal("could not find recursively pinned node")
	}
}
Exemplo n.º 5
0
// NewIpfsNode constructs a new IpfsNode based on the given config.
func NewIpfsNode(cfg *config.Config, online bool) (n *IpfsNode, err error) {
	success := false // flip to true after all sub-system inits succeed
	defer func() {
		if !success && n != nil {
			n.Close()
		}
	}()

	if cfg == nil {
		return nil, debugerror.Errorf("configuration required")
	}

	// derive this from a higher context.
	ctx := context.TODO()
	n = &IpfsNode{
		onlineMode: online,
		Config:     cfg,
	}
	n.ContextCloser = ctxc.NewContextCloser(ctx, n.teardown)

	// setup datastore.
	if n.Datastore, err = makeDatastore(cfg.Datastore); err != nil {
		return nil, debugerror.Wrap(err)
	}

	// setup peerstore + local peer identity
	n.Peerstore = peer.NewPeerstore()
	n.Identity, err = initIdentity(&n.Config.Identity, n.Peerstore, online)
	if err != nil {
		return nil, debugerror.Wrap(err)
	}

	// setup online services
	if online {

		dhtService := netservice.NewService(ctx, nil)      // nil handler for now, need to patch it
		exchangeService := netservice.NewService(ctx, nil) // nil handler for now, need to patch it
		diagService := netservice.NewService(ctx, nil)     // nil handler for now, need to patch it

		muxMap := &mux.ProtocolMap{
			mux.ProtocolID_Routing:    dhtService,
			mux.ProtocolID_Exchange:   exchangeService,
			mux.ProtocolID_Diagnostic: diagService,
			// add protocol services here.
		}

		// setup the network
		listenAddrs, err := listenAddresses(cfg)
		if err != nil {
			return nil, debugerror.Wrap(err)
		}

		n.Network, err = inet.NewIpfsNetwork(ctx, listenAddrs, n.Identity, n.Peerstore, muxMap)
		if err != nil {
			return nil, debugerror.Wrap(err)
		}
		n.AddCloserChild(n.Network)

		// setup diagnostics service
		n.Diagnostics = diag.NewDiagnostics(n.Identity, n.Network, diagService)
		diagService.SetHandler(n.Diagnostics)

		// setup routing service
		dhtRouting := dht.NewDHT(ctx, n.Identity, n.Peerstore, n.Network, dhtService, n.Datastore)
		dhtRouting.Validators[IpnsValidatorTag] = namesys.ValidateIpnsRecord

		// TODO(brian): perform this inside NewDHT factory method
		dhtService.SetHandler(dhtRouting) // wire the handler to the service.
		n.Routing = dhtRouting
		n.AddCloserChild(dhtRouting)

		// setup exchange service
		const alwaysSendToPeer = true // use YesManStrategy
		bitswapNetwork := bsnet.NewFromIpfsNetwork(exchangeService, n.Network)
		n.Exchange = bitswap.New(ctx, n.Identity, bitswapNetwork, n.Routing, n.Datastore, alwaysSendToPeer)

		go initConnections(ctx, n.Config, n.Peerstore, dhtRouting)
	}

	// TODO(brian): when offline instantiate the BlockService with a bitswap
	// session that simply doesn't return blocks
	n.Blocks, err = bserv.NewBlockService(n.Datastore, n.Exchange)
	if err != nil {
		return nil, debugerror.Wrap(err)
	}

	n.DAG = merkledag.NewDAGService(n.Blocks)
	n.Namesys = namesys.NewNameSystem(n.Routing)
	n.Pinning, err = pin.LoadPinner(n.Datastore, n.DAG)
	if err != nil {
		n.Pinning = pin.NewPinner(n.Datastore, n.DAG)
	}
	n.Resolver = &path.Resolver{DAG: n.DAG}

	success = true
	return n, nil
}