示例#1
0
文件: demo.go 项目: bcomnes/examples
func SetupIpfs() (*core.IpfsNode, error) {
	// Assume the user has run 'ipfs init'
	r := fsrepo.At("~/.ipfs")
	if err := r.Open(); err != nil {
		return nil, err
	}

	builder := core.NewNodeBuilder().Online().SetRepo(r)
	return builder.Build(context.Background())
}
示例#2
0
文件: ipfs.go 项目: vijayee/Account
// create a new Service
func NewService(name string, location string) (Service, error) {
	// Basic ipfsnode setup
	repo, err := fsrepo.Open(location)
	if err != nil {
		return Service{}, err
	}
	nodeBuilder := core.NewNodeBuilder().Online()
	nodeBuilder.SetRepo(repo)

	ctx, cancel := context.WithCancel(context.Background())

	node, err := nodeBuilder.Build(ctx)
	if err != nil {
		return Service{}, err
	}
	return Service{name, node, cancel, ctx, nil, make(chan bool), false}, nil
}
示例#3
0
文件: client.go 项目: jchown/abe
func main() {
	if len(os.Args) < 2 {
		fmt.Println("Please give a peer ID as an argument")
		return
	}

	target, err := peer.IDB58Decode(os.Args[1])
	if err != nil {
		panic(err)
	}

	// Basic ipfsnode setup
	r := fsrepo.At("~/.ipfs")
	if err := r.Open(); err != nil {
		panic(err)
	}

	nb := core.NewNodeBuilder().Online()
	nb.SetRepo(r)

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	nd, err := nb.Build(ctx)
	if err != nil {
		panic(err)
	}

	fmt.Printf("I am peer %s dialing %s\n", nd.Identity, target)

	con, err := corenet.Dial(nd, target, "/app/whyrusleeping")
	if err != nil {
		fmt.Println(err)
		return
	}

	io.Copy(os.Stdout, con)
}
示例#4
0
文件: host.go 项目: bcomnes/examples
func main() {
	// Basic ipfsnode setup
	r, err := fsrepo.Open("~/.ipfs")
	if err != nil {
		panic(err)
	}

	nb := core.NewNodeBuilder().Online()
	nb.SetRepo(r)

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	nd, err := nb.Build(ctx)
	if err != nil {
		panic(err)
	}

	list, err := corenet.Listen(nd, "/app/whyrusleeping")
	if err != nil {
		panic(err)
	}
	fmt.Printf("I am peer: %s\n", nd.Identity.Pretty())

	for {
		con, err := list.Accept()
		if err != nil {
			fmt.Println(err)
			return
		}
		defer con.Close()

		fmt.Fprintln(con, "Hello! This is whyrusleepings awesome ipfs service")
		fmt.Printf("Connection from: %s\n", con.Conn().RemotePeer())
	}
}
示例#5
0
文件: add.go 项目: hebelken/go-ipfs
	},
	Run: func(req cmds.Request, res cmds.Response) {
		n, err := req.InvocContext().GetNode()
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		progress, _, _ := req.Option(progressOptionName).Bool()
		trickle, _, _ := req.Option(trickleOptionName).Bool()
		wrap, _, _ := req.Option(wrapOptionName).Bool()
		hash, _, _ := req.Option(onlyHashOptionName).Bool()
		hidden, _, _ := req.Option(hiddenOptionName).Bool()

		if hash {
			nilnode, err := core.NewNodeBuilder().NilRepo().Build(n.Context())
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}
			n = nilnode
		}

		outChan := make(chan interface{}, 8)
		res.SetOutput((<-chan interface{})(outChan))

		// addSingleFile is a function that adds a file given as a param.
		addSingleFile := func(file files.File) error {
			addParams := adder{
				node:     n,
				out:      outChan,
示例#6
0
文件: daemon.go 项目: carver/go-ipfs
func daemonFunc(req cmds.Request, res cmds.Response) {
	// let the user know we're going.
	fmt.Printf("Initializing daemon...\n")

	ctx := req.Context()

	go func() {
		select {
		case <-ctx.Context.Done():
			fmt.Println("Received interrupt signal, shutting down...")
		}
	}()

	// check transport encryption flag.
	unencrypted, _, _ := req.Option(unencryptTransportKwd).Bool()
	if unencrypted {
		log.Warningf(`Running with --%s: All connections are UNENCRYPTED.
		You will not be able to connect to regular encrypted networks.`, unencryptTransportKwd)
		conn.EncryptConnections = false
	}

	// first, whether user has provided the initialization flag. we may be
	// running in an uninitialized state.
	initialize, _, err := req.Option(initOptionKwd).Bool()
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}

	if initialize {

		// now, FileExists is our best method of detecting whether IPFS is
		// configured. Consider moving this into a config helper method
		// `IsInitialized` where the quality of the signal can be improved over
		// time, and many call-sites can benefit.
		if !util.FileExists(req.Context().ConfigRoot) {
			err := initWithDefaults(os.Stdout, req.Context().ConfigRoot)
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}
		}
	}

	// acquire the repo lock _before_ constructing a node. we need to make
	// sure we are permitted to access the resources (datastore, etc.)
	repo, err := fsrepo.Open(req.Context().ConfigRoot)
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}

	cfg, err := ctx.GetConfig()
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}

	// Start assembling corebuilder
	nb := core.NewNodeBuilder().Online()
	nb.SetRepo(repo)

	routingOption, _, err := req.Option(routingOptionKwd).String()
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}
	if routingOption == routingOptionSupernodeKwd {
		servers, err := repo.Config().SupernodeRouting.ServerIPFSAddrs()
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			repo.Close() // because ownership hasn't been transferred to the node
			return
		}
		var infos []peer.PeerInfo
		for _, addr := range servers {
			infos = append(infos, peer.PeerInfo{
				ID:    addr.ID(),
				Addrs: []ma.Multiaddr{addr.Transport()},
			})
		}
		nb.SetRouting(corerouting.SupernodeClient(infos...))
	}

	node, err := nb.Build(ctx.Context)
	if err != nil {
		log.Error("error from node construction: ", err)
		res.SetError(err, cmds.ErrNormal)
		return
	}

	printSwarmAddrs(node)

	defer func() {
		// We wait for the node to close first, as the node has children
		// that it will wait for before closing, such as the API server.
		node.Close()

		select {
		case <-ctx.Context.Done():
			log.Info("Gracefully shut down daemon")
		default:
		}
	}()

	req.Context().ConstructNode = func() (*core.IpfsNode, error) {
		return node, nil
	}

	// construct api endpoint - every time
	err, apiErrc := serveHTTPApi(req)
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}

	// construct http gateway - if it is set in the config
	var gwErrc <-chan error
	if len(cfg.Addresses.Gateway) > 0 {
		var err error
		err, gwErrc = serveHTTPGateway(req)
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
	}

	// construct fuse mountpoints - if the user provided the --mount flag
	mount, _, err := req.Option(mountKwd).Bool()
	if err != nil {
		res.SetError(err, cmds.ErrNormal)
		return
	}
	if mount {
		if err := mountFuse(req); err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
	}

	// collect long-running errors and block for shutdown
	// TODO(cryptix): our fuse currently doesnt follow this pattern for graceful shutdown
	for err := range merge(apiErrc, gwErrc) {
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
	}
}