Exemplo n.º 1
0
func Pin(n *core.IpfsNode, ctx context.Context, paths []string, recursive bool) ([]key.Key, error) {
	dagnodes := make([]*merkledag.Node, 0)
	for _, fpath := range paths {
		dagnode, err := core.Resolve(ctx, n, path.Path(fpath))
		if err != nil {
			return nil, fmt.Errorf("pin: %s", err)
		}
		dagnodes = append(dagnodes, dagnode)
	}

	var out []key.Key
	for _, dagnode := range dagnodes {
		k, err := dagnode.Key()
		if err != nil {
			return nil, err
		}

		ctx, cancel := context.WithTimeout(ctx, time.Minute)
		defer cancel()
		err = n.Pinning.Pin(ctx, dagnode, recursive)
		if err != nil {
			return nil, fmt.Errorf("pin: %s", err)
		}
		out = append(out, k)
	}

	err := n.Pinning.Flush()
	if err != nil {
		return nil, err
	}

	return out, nil
}
Exemplo n.º 2
0
func Unpin(n *core.IpfsNode, paths []string, recursive bool) ([]key.Key, error) {
	// TODO(cryptix): do we want a ctx as first param for (Un)Pin() as well, just like core.Resolve?
	ctx := n.Context()

	dagnodes := make([]*merkledag.Node, 0)
	for _, fpath := range paths {
		dagnode, err := core.Resolve(ctx, n, path.Path(fpath))
		if err != nil {
			return nil, err
		}
		dagnodes = append(dagnodes, dagnode)
	}

	var unpinned []key.Key
	for _, dagnode := range dagnodes {
		k, _ := dagnode.Key()

		ctx, cancel := context.WithTimeout(ctx, time.Minute)
		defer cancel()
		err := n.Pinning.Unpin(ctx, k, recursive)
		if err != nil {
			return nil, err
		}
		unpinned = append(unpinned, k)
	}

	err := n.Pinning.Flush()
	if err != nil {
		return nil, err
	}
	return unpinned, nil
}
Exemplo n.º 3
0
func Unpin(n *core.IpfsNode, ctx context.Context, paths []string, recursive bool) ([]key.Key, error) {

	dagnodes := make([]*merkledag.Node, 0)
	for _, fpath := range paths {
		dagnode, err := core.Resolve(ctx, n, path.Path(fpath))
		if err != nil {
			return nil, err
		}
		dagnodes = append(dagnodes, dagnode)
	}

	var unpinned []key.Key
	for _, dagnode := range dagnodes {
		k, _ := dagnode.Key()

		ctx, cancel := context.WithTimeout(ctx, time.Minute)
		defer cancel()
		err := n.Pinning.Unpin(ctx, k, recursive)
		if err != nil {
			return nil, err
		}
		unpinned = append(unpinned, k)
	}

	err := n.Pinning.Flush()
	if err != nil {
		return nil, err
	}
	return unpinned, nil
}
Exemplo n.º 4
0
func Cat(ctx context.Context, n *core.IpfsNode, pstr string) (*uio.DagReader, error) {
	dagNode, err := core.Resolve(ctx, n, path.Path(pstr))
	if err != nil {
		return nil, err
	}
	return uio.NewDagReader(ctx, dagNode, n.DAG)
}
Exemplo n.º 5
0
func TestResolveNoComponents(t *testing.T) {
	n, err := coremock.NewMockNode()
	if n == nil || err != nil {
		t.Fatal("Should have constructed a mock node", err)
	}

	_, err = core.Resolve(n.Context(), n, path.Path("/ipns/"))
	if err != path.ErrNoComponents {
		t.Fatal("Should error with no components (/ipns/).", err)
	}

	_, err = core.Resolve(n.Context(), n, path.Path("/ipfs/"))
	if err != path.ErrNoComponents {
		t.Fatal("Should error with no components (/ipfs/).", err)
	}

}
Exemplo n.º 6
0
func get(ctx context.Context, node *core.IpfsNode, p string, compression int) (io.Reader, error) {
	pathToResolve := path.Path(p)
	dagnode, err := core.Resolve(ctx, node, pathToResolve)
	if err != nil {
		return nil, err
	}

	return utar.NewReader(pathToResolve, node.DAG, dagnode, compression)
}
Exemplo n.º 7
0
func objectsForPaths(ctx context.Context, n *core.IpfsNode, paths []string) ([]*dag.Node, error) {
	objects := make([]*dag.Node, len(paths))
	for i, p := range paths {
		o, err := core.Resolve(ctx, n, path.Path(p))
		if err != nil {
			return nil, err
		}
		objects[i] = o
	}
	return objects, nil
}
Exemplo n.º 8
0
func cat(ctx context.Context, node *core.IpfsNode, fpath string) (io.Reader, uint64, error) {
	dagnode, err := core.Resolve(ctx, node, path.Path(fpath))
	if err != nil {
		return nil, 0, err
	}

	reader, err := uio.NewDagReader(ctx, dagnode, node.DAG)
	if err != nil {
		return nil, 0, err
	}
	length := uint64(reader.Size())

	return reader, length, nil
}
Exemplo n.º 9
0
// Lookup performs a lookup under this node.
func (s *Root) Lookup(ctx context.Context, name string) (fs.Node, error) {
	log.Debugf("Root Lookup: '%s'", name)
	switch name {
	case "mach_kernel", ".hidden", "._.":
		// Just quiet some log noise on OS X.
		return nil, fuse.ENOENT
	}

	nd, err := s.Ipfs.Resolver.ResolvePath(ctx, path.Path(name))
	if err != nil {
		// todo: make this error more versatile.
		return nil, fuse.ENOENT
	}

	return &Node{Ipfs: s.Ipfs, Nd: nd}, nil
}
Exemplo n.º 10
0
func cat(ctx context.Context, node *core.IpfsNode, paths []string) ([]io.Reader, uint64, error) {
	readers := make([]io.Reader, 0, len(paths))
	length := uint64(0)
	for _, fpath := range paths {
		dagnode, err := core.Resolve(ctx, node, path.Path(fpath))
		if err != nil {
			return nil, 0, err
		}

		read, err := uio.NewDagReader(ctx, dagnode, node.DAG)
		if err != nil {
			return nil, 0, err
		}
		readers = append(readers, read)
		length += uint64(read.Size())
	}
	return readers, length, nil
}
Exemplo n.º 11
0
func pinLsKeys(args []string, typeStr string, ctx context.Context, n *core.IpfsNode) (map[string]RefKeyObject, error) {

	keys := make(map[string]RefKeyObject)

	for _, p := range args {
		dagNode, err := core.Resolve(ctx, n, path.Path(p))
		if err != nil {
			return nil, err
		}

		k, err := dagNode.Key()
		if err != nil {
			return nil, err
		}

		mode, ok := pin.StringToPinMode(typeStr)
		if !ok {
			return nil, fmt.Errorf("Invalid pin mode '%s'", typeStr)
		}

		pinType, pinned, err := n.Pinning.IsPinnedWithType(k, mode)
		if err != nil {
			return nil, err
		}

		if !pinned {
			return nil, fmt.Errorf("Path '%s' is not pinned", p)
		}

		switch pinType {
		case "direct", "indirect", "recursive", "internal":
		default:
			pinType = "indirect through " + pinType
		}
		keys[k.B58String()] = RefKeyObject{
			Type: pinType,
		}
	}

	return keys, nil
}
Exemplo n.º 12
0
// Lookup performs a lookup under this node.
func (s *Root) Lookup(ctx context.Context, name string) (fs.Node, error) {
	log.Debugf("Root Lookup: '%s'", name)
	switch name {
	case "mach_kernel", ".hidden", "._.":
		// Just quiet some log noise on OS X.
		return nil, fuse.ENOENT
	}

	nd, err := s.Ipfs.Resolver.ResolvePath(ctx, path.Path(name))
	if err != nil {
		// todo: make this error more versatile.
		return nil, fuse.ENOENT
	}

	pbnd, ok := nd.(*mdag.ProtoNode)
	if !ok {
		log.Error("fuse node was not a protobuf node")
		return nil, fuse.ENOTSUP
	}

	return &Node{Ipfs: s.Ipfs, Nd: pbnd}, nil
}
Exemplo n.º 13
0
func (rp *Republisher) getLastVal(k key.Key) (path.Path, uint64, error) {
	ival, err := rp.ds.Get(k.DsKey())
	if err != nil {
		// not found means we dont have a previously published entry
		return "", 0, errNoEntry
	}

	val := ival.([]byte)
	dhtrec := new(dhtpb.Record)
	err = proto.Unmarshal(val, dhtrec)
	if err != nil {
		return "", 0, err
	}

	// extract published data from record
	e := new(pb.IpnsEntry)
	err = proto.Unmarshal(dhtrec.GetValue(), e)
	if err != nil {
		return "", 0, err
	}
	return path.Path(e.Value), e.GetSequence(), nil
}
Exemplo n.º 14
0
func TestOrdering(t *testing.T) {
	// select timestamp so selection is deterministic
	ts := time.Unix(1000000, 0)

	// generate a key for signing the records
	r := u.NewSeededRand(15) // generate deterministic keypair
	priv, _, err := ci.GenerateKeyPairWithReader(ci.RSA, 1024, r)
	if err != nil {
		t.Fatal(err)
	}

	e1, err := CreateRoutingEntryData(priv, path.Path("foo"), 1, ts.Add(time.Hour))
	if err != nil {
		t.Fatal(err)
	}

	e2, err := CreateRoutingEntryData(priv, path.Path("bar"), 2, ts.Add(time.Hour))
	if err != nil {
		t.Fatal(err)
	}

	e3, err := CreateRoutingEntryData(priv, path.Path("baz"), 3, ts.Add(time.Hour))
	if err != nil {
		t.Fatal(err)
	}

	e4, err := CreateRoutingEntryData(priv, path.Path("cat"), 3, ts.Add(time.Hour*2))
	if err != nil {
		t.Fatal(err)
	}

	e5, err := CreateRoutingEntryData(priv, path.Path("dog"), 4, ts.Add(time.Hour*3))
	if err != nil {
		t.Fatal(err)
	}

	e6, err := CreateRoutingEntryData(priv, path.Path("fish"), 4, ts.Add(time.Hour*3))
	if err != nil {
		t.Fatal(err)
	}

	// e1 is the only record, i hope it gets this right
	err = AssertSelected(e1, e1)
	if err != nil {
		t.Fatal(err)
	}

	// e2 has the highest sequence number
	err = AssertSelected(e2, e1, e2)
	if err != nil {
		t.Fatal(err)
	}

	// e3 has the highest sequence number
	err = AssertSelected(e3, e1, e2, e3)
	if err != nil {
		t.Fatal(err)
	}

	// e4 has a higher timeout
	err = AssertSelected(e4, e1, e2, e3, e4)
	if err != nil {
		t.Fatal(err)
	}

	// e5 has the highest sequence number
	err = AssertSelected(e5, e1, e2, e3, e4, e5)
	if err != nil {
		t.Fatal(err)
	}

	// e6 should be selected as its signauture will win in the comparison
	err = AssertSelected(e6, e1, e2, e3, e4, e5, e6)
	if err != nil {
		t.Fatal(err)
	}

	_ = []interface{}{e1, e2, e3, e4, e5, e6}
}
Exemplo n.º 15
0
func (x *Start) Execute(args []string) error {
	printSplashScreen()

	// set repo path
	var repoPath string
	if x.Testnet {
		repoPath = "~/.openbazaar2-testnet"
	} else {
		repoPath = "~/.openbazaar2"
	}
	expPath, _ := homedir.Expand(filepath.Clean(repoPath))

	// Database
	sqliteDB, err := db.Create(expPath, x.Password, x.Testnet)
	if err != nil {
		return err
	}

	// logging
	w := &lumberjack.Logger{
		Filename:   path.Join(expPath, "logs", "ob.log"),
		MaxSize:    10, // megabytes
		MaxBackups: 3,
		MaxAge:     30, //days
	}
	backendStdout := logging.NewLogBackend(os.Stdout, "", 0)
	backendFile := logging.NewLogBackend(w, "", 0)
	backendStdoutFormatter := logging.NewBackendFormatter(backendStdout, stdoutLogFormat)
	backendFileFormatter := logging.NewBackendFormatter(backendFile, fileLogFormat)
	logging.SetBackend(backendFileFormatter, backendStdoutFormatter)

	ipfslogging.LdJSONFormatter()
	w2 := &lumberjack.Logger{
		Filename:   path.Join(expPath, "logs", "ipfs.log"),
		MaxSize:    10, // megabytes
		MaxBackups: 3,
		MaxAge:     30, //days
	}
	ipfslogging.Output(w2)()

	// initalize the ipfs repo if it doesn't already exist
	err = repo.DoInit(os.Stdout, expPath, 4096, x.Testnet, x.Password, sqliteDB.Config().Init)
	if err != nil && err != repo.ErrRepoExists {
		log.Error(err)
		return err
	}

	// if the db can't be decrypted, exit
	if sqliteDB.Config().IsEncrypted() {
		return encryptedDatabaseError
	}

	// ipfs node setup
	r, err := fsrepo.Open(repoPath)
	if err != nil {
		log.Error(err)
		return err
	}
	cctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	cfg, err := r.Config()
	if err != nil {
		log.Error(err)
		return err
	}

	identityKey, err := sqliteDB.Config().GetIdentityKey()
	if err != nil {
		log.Error(err)
		return err
	}
	identity, err := ipfs.IdentityFromKey(identityKey)
	if err != nil {
		return err
	}
	cfg.Identity = identity

	// Run stun and set uTP port
	if x.STUN {
		for i, addr := range cfg.Addresses.Swarm {
			m, _ := ma.NewMultiaddr(addr)
			p := m.Protocols()
			if p[0].Name == "ip4" && p[1].Name == "udp" && p[2].Name == "utp" {
				port, serr := net.Stun()
				if serr != nil {
					log.Error(serr)
					return err
				}
				cfg.Addresses.Swarm = append(cfg.Addresses.Swarm[:i], cfg.Addresses.Swarm[i+1:]...)
				cfg.Addresses.Swarm = append(cfg.Addresses.Swarm, "/ip4/0.0.0.0/udp/"+strconv.Itoa(port)+"/utp")
				break
			}
		}
	}

	ncfg := &ipfscore.BuildCfg{
		Repo:   r,
		Online: true,
	}
	nd, err := ipfscore.NewNode(cctx, ncfg)
	if err != nil {
		log.Error(err)
		return err
	}
	ctx := commands.Context{}
	ctx.Online = true
	ctx.ConfigRoot = expPath
	ctx.LoadConfig = func(path string) (*config.Config, error) {
		return fsrepo.ConfigAt(expPath)
	}
	ctx.ConstructNode = func() (*ipfscore.IpfsNode, error) {
		return nd, nil
	}

	log.Info("Peer ID: ", nd.Identity.Pretty())
	printSwarmAddrs(nd)

	// Get current directory root hash
	_, ipnskey := namesys.IpnsKeysForID(nd.Identity)
	ival, _ := nd.Repo.Datastore().Get(ipnskey.DsKey())
	val := ival.([]byte)
	dhtrec := new(dhtpb.Record)
	proto.Unmarshal(val, dhtrec)
	e := new(namepb.IpnsEntry)
	proto.Unmarshal(dhtrec.GetValue(), e)

	// Wallet
	mn, err := sqliteDB.Config().GetMnemonic()
	if err != nil {
		log.Error(err)
		return err
	}
	var params chaincfg.Params
	if !x.Testnet {
		params = chaincfg.MainNetParams
	} else {
		params = chaincfg.TestNet3Params
	}
	libbitcoinServers, err := repo.GetLibbitcoinServers(path.Join(expPath, "config"))
	if err != nil {
		log.Error(err)
		return err
	}
	maxFee, err := repo.GetMaxFee(path.Join(expPath, "config"))
	if err != nil {
		log.Error(err)
		return err
	}
	feeApi, err := repo.GetFeeAPI(path.Join(expPath, "config"))
	if err != nil {
		log.Error(err)
		return err
	}
	low, medium, high, err := repo.GetDefaultFees(path.Join(expPath, "config"))
	if err != nil {
		log.Error(err)
		return err
	}
	wallet := libbitcoin.NewLibbitcoinWallet(mn, &params, sqliteDB, libbitcoinServers, maxFee, low, medium, high, feeApi)

	// Offline messaging storage
	var storage sto.OfflineMessagingStorage
	if x.Storage == "self-hosted" || x.Storage == "" {
		storage = selfhosted.NewSelfHostedStorage(expPath, ctx)
	} else if x.Storage == "dropbox" {
		token, err := repo.GetDropboxApiToken(path.Join(expPath, "config"))
		if err != nil {
			log.Error(err)
			return err
		} else if token == "" {
			err = errors.New("Dropbox token not set in config file")
			log.Error(err)
			return err
		}
		storage, err = dropbox.NewDropBoxStorage(token)
		if err != nil {
			log.Error(err)
			return err
		}
	} else {
		err = errors.New("Invalid storage option")
		log.Error(err)
		return err
	}

	// OpenBazaar node setup
	core.Node = &core.OpenBazaarNode{
		Context:        ctx,
		IpfsNode:       nd,
		RootHash:       ipath.Path(e.Value).String(),
		RepoPath:       expPath,
		Datastore:      sqliteDB,
		Wallet:         wallet,
		MessageStorage: storage,
	}

	var gwErrc <-chan error
	var cb <-chan bool
	if len(cfg.Addresses.Gateway) > 0 {
		var err error
		err, cb, gwErrc = serveHTTPGateway(core.Node)
		if err != nil {
			log.Error(err)
			return err
		}
	}

	// Wait for gateway to start before starting the network service.
	// This way the websocket channel we pass into the service gets created first.
	// FIXME: There has to be a better way
	for b := range cb {
		if b == true {
			OBService := service.SetupOpenBazaarService(nd, core.Node.Broadcast, ctx, sqliteDB)
			core.Node.Service = OBService
			MR := net.NewMessageRetriever(sqliteDB, ctx, nd, OBService, 16, core.Node.SendOfflineAck)
			go MR.Run()
			core.Node.MessageRetriever = MR
			PR := net.NewPointerRepublisher(nd, sqliteDB)
			go PR.Run()
			core.Node.PointerRepublisher = PR
		}
		break
	}

	for err := range gwErrc {
		fmt.Println(err)
	}

	return nil
}
Exemplo n.º 16
0
Arquivo: ls.go Projeto: qnib/go-ipfs
		paths := req.Arguments()

		output := LsOutput{
			Arguments: map[string]string{},
			Objects:   map[string]*LsObject{},
		}

		for _, fpath := range paths {
			ctx := req.Context()

			resolver := &path.Resolver{
				DAG:         node.DAG,
				ResolveOnce: uio.ResolveUnixfsOnce,
			}

			merkleNode, err := core.Resolve(ctx, node.Namesys, resolver, path.Path(fpath))
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}

			c := merkleNode.Cid()

			hash := c.String()
			output.Arguments[fpath] = hash

			if _, ok := output.Objects[hash]; ok {
				// duplicate argument for an already-listed node
				continue
			}
Exemplo n.º 17
0
			popts.pubValidTime = d
		}

		ctx := req.Context()
		if ttl, found, _ := req.Option("ttl").String(); found {
			d, err := time.ParseDuration(ttl)
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}

			ctx = context.WithValue(ctx, "ipns-publish-ttl", d)
		}

		output, err := publish(ctx, n, n.PrivateKey, path.Path(pstr), popts)
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
		res.SetOutput(output)
	},
	Marshalers: cmds.MarshalerMap{
		cmds.Text: func(res cmds.Response) (io.Reader, error) {
			v := res.Output().(*IpnsEntry)
			s := fmt.Sprintf("Published to %s: %s\n", v.Name, v.Value)
			return strings.NewReader(s), nil
		},
	},
	Type: IpnsEntry{},
}
Exemplo n.º 18
0
func (i *gatewayHandler) getOrHeadHandler(w http.ResponseWriter, r *http.Request) {
	ctx, cancel := context.WithCancel(i.node.Context())
	defer cancel()

	urlPath := r.URL.Path

	if i.config.BlockList != nil && i.config.BlockList.ShouldBlock(urlPath) {
		w.WriteHeader(http.StatusForbidden)
		w.Write([]byte("403 - Forbidden"))
		return
	}

	nd, err := core.Resolve(ctx, i.node, path.Path(urlPath))
	if err != nil {
		webError(w, "Path Resolve error", err, http.StatusBadRequest)
		return
	}

	etag := gopath.Base(urlPath)
	if r.Header.Get("If-None-Match") == etag {
		w.WriteHeader(http.StatusNotModified)
		return
	}

	w.Header().Set("X-IPFS-Path", urlPath)

	// Suborigin header, sandboxes apps from each other in the browser (even
	// though they are served from the same gateway domain). NOTE: This is not
	// yet widely supported by browsers.
	pathRoot := strings.SplitN(urlPath, "/", 4)[2]
	w.Header().Set("Suborigin", pathRoot)

	dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
	if err != nil && err != uio.ErrIsDir {
		// not a directory and still an error
		internalWebError(w, err)
		return
	}

	// set these headers _after_ the error, for we may just not have it
	// and dont want the client to cache a 500 response...
	// and only if it's /ipfs!
	// TODO: break this out when we split /ipfs /ipns routes.
	modtime := time.Now()
	if strings.HasPrefix(urlPath, ipfsPathPrefix) {
		w.Header().Set("Etag", etag)
		w.Header().Set("Cache-Control", "public, max-age=29030400")

		// set modtime to a really long time ago, since files are immutable and should stay cached
		modtime = time.Unix(1, 0)
	}

	if err == nil {
		defer dr.Close()
		_, name := gopath.Split(urlPath)
		http.ServeContent(w, r, name, modtime, dr)
		return
	}

	// storage for directory listing
	var dirListing []directoryItem
	// loop through files
	foundIndex := false
	for _, link := range nd.Links {
		if link.Name == "index.html" {
			if urlPath[len(urlPath)-1] != '/' {
				http.Redirect(w, r, urlPath+"/", 302)
				return
			}

			log.Debug("found index")
			foundIndex = true
			// return index page instead.
			nd, err := core.Resolve(ctx, i.node, path.Path(urlPath+"/index.html"))
			if err != nil {
				internalWebError(w, err)
				return
			}
			dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
			if err != nil {
				internalWebError(w, err)
				return
			}
			defer dr.Close()

			// write to request
			if r.Method != "HEAD" {
				io.Copy(w, dr)
			}
			break
		}

		di := directoryItem{link.Size, link.Name, gopath.Join(urlPath, link.Name)}
		dirListing = append(dirListing, di)
	}

	if !foundIndex {
		// template and return directory listing
		hndlr := webHandler{
			"listing": dirListing,
			"path":    urlPath,
		}

		if r.Method != "HEAD" {
			if err := i.dirList.Execute(w, hndlr); err != nil {
				internalWebError(w, err)
				return
			}
		}
	}
}
Exemplo n.º 19
0
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}

			ctx = context.WithValue(ctx, "ipns-publish-ttl", d)
		}

		kname, _, _ := req.Option("key").String()
		k, err := n.GetKey(kname)
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		output, err := publish(ctx, n, k, path.Path(pstr), popts)
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
		res.SetOutput(output)
	},
	Marshalers: cmds.MarshalerMap{
		cmds.Text: func(res cmds.Response) (io.Reader, error) {
			v := res.Output().(*IpnsEntry)
			s := fmt.Sprintf("Published to %s: %s\n", v.Name, v.Value)
			return strings.NewReader(s), nil
		},
	},
	Type: IpnsEntry{},
}
Exemplo n.º 20
0
Arquivo: ls.go Projeto: avbalu/go-ipfs
		node, err := req.Context().GetNode()
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		paths := req.Arguments()

		output := LsOutput{
			Arguments: map[string]string{},
			Objects:   map[string]*LsObject{},
		}

		for _, fpath := range paths {
			ctx := req.Context().Context
			merkleNode, err := core.Resolve(ctx, node, path.Path(fpath))
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}

			key, err := merkleNode.Key()
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}

			hash := key.B58String()
			output.Arguments[fpath] = hash

			if _, ok := output.Objects[hash]; ok {
Exemplo n.º 21
0
func (i *gatewayHandler) putHandler(w http.ResponseWriter, r *http.Request) {
	// TODO(cryptix): either ask mildred about the flow of this or rewrite it
	webErrorWithCode(w, "Sorry, PUT is bugged right now, closing request", errors.New("handler disabled"), http.StatusInternalServerError)
	return
	urlPath := r.URL.Path
	pathext := urlPath[5:]
	var err error
	if urlPath == ipfsPathPrefix+"QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn/" {
		i.putEmptyDirHandler(w, r)
		return
	}

	var newnode *dag.Node
	if pathext[len(pathext)-1] == '/' {
		newnode = uio.NewEmptyDirectory()
	} else {
		newnode, err = i.newDagFromReader(r.Body)
		if err != nil {
			webError(w, "Could not create DAG from request", err, http.StatusInternalServerError)
			return
		}
	}

	ctx, cancel := context.WithCancel(i.node.Context())
	defer cancel()

	ipfsNode, err := core.Resolve(ctx, i.node, path.Path(urlPath))
	if err != nil {
		// FIXME HTTP error code
		webError(w, "Could not resolve name", err, http.StatusInternalServerError)
		return
	}

	k, err := ipfsNode.Key()
	if err != nil {
		webError(w, "Could not get key from resolved node", err, http.StatusInternalServerError)
		return
	}

	h, components, err := path.SplitAbsPath(path.FromKey(k))
	if err != nil {
		webError(w, "Could not split path", err, http.StatusInternalServerError)
		return
	}

	if len(components) < 1 {
		err = fmt.Errorf("Cannot override existing object")
		webError(w, "http gateway", err, http.StatusBadRequest)
		return
	}

	tctx, cancel := context.WithTimeout(ctx, time.Minute)
	defer cancel()
	// TODO(cryptix): could this be core.Resolve() too?
	rootnd, err := i.node.Resolver.DAG.Get(tctx, key.Key(h))
	if err != nil {
		webError(w, "Could not resolve root object", err, http.StatusBadRequest)
		return
	}

	// resolving path components into merkledag nodes. if a component does not
	// resolve, create empty directories (which will be linked and populated below.)
	pathNodes, err := i.node.Resolver.ResolveLinks(tctx, rootnd, components[:len(components)-1])
	if _, ok := err.(path.ErrNoLink); ok {
		// Create empty directories, links will be made further down the code
		for len(pathNodes) < len(components) {
			pathNodes = append(pathNodes, uio.NewDirectory(i.node.DAG).GetNode())
		}
	} else if err != nil {
		webError(w, "Could not resolve parent object", err, http.StatusBadRequest)
		return
	}

	for i := len(pathNodes) - 1; i >= 0; i-- {
		newnode, err = pathNodes[i].UpdateNodeLink(components[i], newnode)
		if err != nil {
			webError(w, "Could not update node links", err, http.StatusInternalServerError)
			return
		}
	}

	err = i.node.DAG.AddRecursive(newnode)
	if err != nil {
		webError(w, "Could not add recursively new node", err, http.StatusInternalServerError)
		return
	}

	// Redirect to new path
	key, err := newnode.Key()
	if err != nil {
		webError(w, "Could not get key of new node", err, http.StatusInternalServerError)
		return
	}

	i.addUserHeaders(w) // ok, _now_ write user's headers.
	w.Header().Set("IPFS-Hash", key.String())
	http.Redirect(w, r, ipfsPathPrefix+key.String()+"/"+strings.Join(components, "/"), http.StatusCreated)
}
Exemplo n.º 22
0
func (i *gatewayHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
	urlPath := r.URL.Path
	ctx, cancel := context.WithCancel(i.node.Context())
	defer cancel()

	ipfsNode, err := core.Resolve(ctx, i.node, path.Path(urlPath))
	if err != nil {
		// FIXME HTTP error code
		webError(w, "Could not resolve name", err, http.StatusInternalServerError)
		return
	}

	k, err := ipfsNode.Key()
	if err != nil {
		webError(w, "Could not get key from resolved node", err, http.StatusInternalServerError)
		return
	}

	h, components, err := path.SplitAbsPath(path.FromKey(k))
	if err != nil {
		webError(w, "Could not split path", err, http.StatusInternalServerError)
		return
	}

	tctx, cancel := context.WithTimeout(ctx, time.Minute)
	defer cancel()
	rootnd, err := i.node.Resolver.DAG.Get(tctx, key.Key(h))
	if err != nil {
		webError(w, "Could not resolve root object", err, http.StatusBadRequest)
		return
	}

	pathNodes, err := i.node.Resolver.ResolveLinks(tctx, rootnd, components[:len(components)-1])
	if err != nil {
		webError(w, "Could not resolve parent object", err, http.StatusBadRequest)
		return
	}

	// TODO(cyrptix): assumes len(pathNodes) > 1 - not found is an error above?
	err = pathNodes[len(pathNodes)-1].RemoveNodeLink(components[len(components)-1])
	if err != nil {
		webError(w, "Could not delete link", err, http.StatusBadRequest)
		return
	}

	newnode := pathNodes[len(pathNodes)-1]
	for i := len(pathNodes) - 2; i >= 0; i-- {
		newnode, err = pathNodes[i].UpdateNodeLink(components[i], newnode)
		if err != nil {
			webError(w, "Could not update node links", err, http.StatusInternalServerError)
			return
		}
	}

	if err := i.node.DAG.AddRecursive(newnode); err != nil {
		webError(w, "Could not add recursively new node", err, http.StatusInternalServerError)
		return
	}

	// Redirect to new path
	key, err := newnode.Key()
	if err != nil {
		webError(w, "Could not get key of new node", err, http.StatusInternalServerError)
		return
	}

	i.addUserHeaders(w) // ok, _now_ write user's headers.
	w.Header().Set("IPFS-Hash", key.String())
	http.Redirect(w, r, gopath.Join(ipfsPathPrefix+key.String(), path.Join(components[:len(components)-1])), http.StatusCreated)
}
Exemplo n.º 23
0
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		// get options early -> exit early in case of error
		if _, _, err := req.Option("headers").Bool(); err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		paths := req.Arguments()

		var dagnodes []*merkledag.Node
		for _, fpath := range paths {
			dagnode, err := core.Resolve(req.Context(), node, path.Path(fpath))
			if err != nil {
				res.SetError(err, cmds.ErrNormal)
				return
			}
			dagnodes = append(dagnodes, dagnode)
		}

		output := make([]LsObject, len(req.Arguments()))
		for i, dagnode := range dagnodes {
			output[i] = LsObject{
				Hash:  paths[i],
				Links: make([]LsLink, len(dagnode.Links)),
			}
			for j, link := range dagnode.Links {
				link.Node, err = link.GetNode(req.Context(), node.DAG)
Exemplo n.º 24
0
func (i *gatewayHandler) getOrHeadHandler(w http.ResponseWriter, r *http.Request) {
	ctx, cancel := context.WithCancel(i.node.Context())
	defer cancel()

	urlPath := r.URL.Path

	if i.config.BlockList != nil && i.config.BlockList.ShouldBlock(urlPath) {
		w.WriteHeader(http.StatusForbidden)
		w.Write([]byte("403 - Forbidden"))
		return
	}

	nd, err := core.Resolve(ctx, i.node, path.Path(urlPath))
	if err != nil {
		webError(w, "Path Resolve error", err, http.StatusBadRequest)
		return
	}

	etag := gopath.Base(urlPath)
	if r.Header.Get("If-None-Match") == etag {
		w.WriteHeader(http.StatusNotModified)
		return
	}

	i.addUserHeaders(w) // ok, _now_ write user's headers.
	w.Header().Set("X-IPFS-Path", urlPath)

	// Suborigin header, sandboxes apps from each other in the browser (even
	// though they are served from the same gateway domain). NOTE: This is not
	// yet widely supported by browsers.
	pathRoot := strings.SplitN(urlPath, "/", 4)[2]
	w.Header().Set("Suborigin", pathRoot)

	dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
	if err != nil && err != uio.ErrIsDir {
		// not a directory and still an error
		internalWebError(w, err)
		return
	}

	// set these headers _after_ the error, for we may just not have it
	// and dont want the client to cache a 500 response...
	// and only if it's /ipfs!
	// TODO: break this out when we split /ipfs /ipns routes.
	modtime := time.Now()
	if strings.HasPrefix(urlPath, ipfsPathPrefix) {
		w.Header().Set("Etag", etag)
		w.Header().Set("Cache-Control", "public, max-age=29030400")

		// set modtime to a really long time ago, since files are immutable and should stay cached
		modtime = time.Unix(1, 0)
	}

	if err == nil {
		defer dr.Close()
		_, name := gopath.Split(urlPath)
		http.ServeContent(w, r, name, modtime, dr)
		return
	}

	// storage for directory listing
	var dirListing []directoryItem
	// loop through files
	foundIndex := false
	for _, link := range nd.Links {
		if link.Name == "index.html" {
			if urlPath[len(urlPath)-1] != '/' {
				http.Redirect(w, r, urlPath+"/", 302)
				return
			}

			log.Debug("found index")
			foundIndex = true
			// return index page instead.
			nd, err := core.Resolve(ctx, i.node, path.Path(urlPath+"/index.html"))
			if err != nil {
				internalWebError(w, err)
				return
			}
			dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
			if err != nil {
				internalWebError(w, err)
				return
			}
			defer dr.Close()

			// write to request
			if r.Method != "HEAD" {
				io.Copy(w, dr)
			}
			break
		}

		di := directoryItem{link.Size, link.Name, gopath.Join(urlPath, link.Name)}
		dirListing = append(dirListing, di)
	}

	if !foundIndex {
		if r.Method != "HEAD" {
			// construct the correct back link
			// https://github.com/ipfs/go-ipfs/issues/1365
			var backLink string = r.URL.Path

			// don't go further up than /ipfs/$hash/
			pathSplit := strings.Split(backLink, "/")
			switch {
			// keep backlink
			case len(pathSplit) == 3: // url: /ipfs/$hash

			// keep backlink
			case len(pathSplit) == 4 && pathSplit[3] == "": // url: /ipfs/$hash/

			// add the correct link depending on wether the path ends with a slash
			default:
				if strings.HasSuffix(backLink, "/") {
					backLink += "./.."
				} else {
					backLink += "/.."
				}
			}

			tplData := listingTemplateData{
				Listing:  dirListing,
				Path:     urlPath,
				BackLink: backLink,
			}
			err := listingTemplate.Execute(w, tplData)
			if err != nil {
				internalWebError(w, err)
				return
			}
		}
	}
}
Exemplo n.º 25
0
func (i *gatewayHandler) getOrHeadHandler(w http.ResponseWriter, r *http.Request) {
	ctx, cancel := context.WithTimeout(i.node.Context(), time.Hour)
	// the hour is a hard fallback, we don't expect it to happen, but just in case
	defer cancel()

	if cn, ok := w.(http.CloseNotifier); ok {
		clientGone := cn.CloseNotify()
		go func() {
			select {
			case <-clientGone:
			case <-ctx.Done():
			}
			cancel()
		}()
	}

	urlPath := r.URL.Path

	// If the gateway is behind a reverse proxy and mounted at a sub-path,
	// the prefix header can be set to signal this sub-path.
	// It will be prepended to links in directory listings and the index.html redirect.
	prefix := ""
	if prefixHdr := r.Header["X-Ipfs-Gateway-Prefix"]; len(prefixHdr) > 0 {
		log.Debugf("X-Ipfs-Gateway-Prefix: %s", prefixHdr[0])
		prefix = prefixHdr[0]
	}

	// IPNSHostnameOption might have constructed an IPNS path using the Host header.
	// In this case, we need the original path for constructing redirects
	// and links that match the requested URL.
	// For example, http://example.net would become /ipns/example.net, and
	// the redirects and links would end up as http://example.net/ipns/example.net
	originalUrlPath := prefix + urlPath
	ipnsHostname := false
	if hdr := r.Header["X-Ipns-Original-Path"]; len(hdr) > 0 {
		originalUrlPath = prefix + hdr[0]
		ipnsHostname = true
	}

	if i.config.BlockList != nil && i.config.BlockList.ShouldBlock(urlPath) {
		w.WriteHeader(http.StatusForbidden)
		w.Write([]byte("403 - Forbidden"))
		return
	}

	nd, err := core.Resolve(ctx, i.node, path.Path(urlPath))
	if err != nil {
		webError(w, "Path Resolve error", err, http.StatusBadRequest)
		return
	}

	etag := gopath.Base(urlPath)
	if r.Header.Get("If-None-Match") == etag {
		w.WriteHeader(http.StatusNotModified)
		return
	}

	i.addUserHeaders(w) // ok, _now_ write user's headers.
	w.Header().Set("X-IPFS-Path", urlPath)

	// set 'allowed' headers
	w.Header().Set("Access-Control-Allow-Headers", "X-Stream-Output, X-Chunked-Output")
	// expose those headers
	w.Header().Set("Access-Control-Expose-Headers", "X-Stream-Output, X-Chunked-Output")

	// Suborigin header, sandboxes apps from each other in the browser (even
	// though they are served from the same gateway domain).
	//
	// Omited if the path was treated by IPNSHostnameOption(), for example
	// a request for http://example.net/ would be changed to /ipns/example.net/,
	// which would turn into an incorrect Suborigin: example.net header.
	//
	// NOTE: This is not yet widely supported by browsers.
	if !ipnsHostname {
		pathRoot := strings.SplitN(urlPath, "/", 4)[2]
		w.Header().Set("Suborigin", pathRoot)
	}

	dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
	if err != nil && err != uio.ErrIsDir {
		// not a directory and still an error
		internalWebError(w, err)
		return
	}

	// set these headers _after_ the error, for we may just not have it
	// and dont want the client to cache a 500 response...
	// and only if it's /ipfs!
	// TODO: break this out when we split /ipfs /ipns routes.
	modtime := time.Now()
	if strings.HasPrefix(urlPath, ipfsPathPrefix) {
		w.Header().Set("Etag", etag)
		w.Header().Set("Cache-Control", "public, max-age=29030400")

		// set modtime to a really long time ago, since files are immutable and should stay cached
		modtime = time.Unix(1, 0)
	}

	if err == nil {
		defer dr.Close()
		name := gopath.Base(urlPath)
		http.ServeContent(w, r, name, modtime, dr)
		return
	}

	// storage for directory listing
	var dirListing []directoryItem
	// loop through files
	foundIndex := false
	for _, link := range nd.Links {
		if link.Name == "index.html" {
			log.Debugf("found index.html link for %s", urlPath)
			foundIndex = true

			if urlPath[len(urlPath)-1] != '/' {
				// See comment above where originalUrlPath is declared.
				http.Redirect(w, r, originalUrlPath+"/", 302)
				log.Debugf("redirect to %s", originalUrlPath+"/")
				return
			}

			// return index page instead.
			nd, err := core.Resolve(ctx, i.node, path.Path(urlPath+"/index.html"))
			if err != nil {
				internalWebError(w, err)
				return
			}
			dr, err := uio.NewDagReader(ctx, nd, i.node.DAG)
			if err != nil {
				internalWebError(w, err)
				return
			}
			defer dr.Close()

			// write to request
			http.ServeContent(w, r, "index.html", modtime, dr)
			break
		}

		// See comment above where originalUrlPath is declared.
		di := directoryItem{humanize.Bytes(link.Size), link.Name, gopath.Join(originalUrlPath, link.Name)}
		dirListing = append(dirListing, di)
	}

	if !foundIndex {
		if r.Method != "HEAD" {
			// construct the correct back link
			// https://github.com/ipfs/go-ipfs/issues/1365
			var backLink string = prefix + urlPath

			// don't go further up than /ipfs/$hash/
			pathSplit := path.SplitList(backLink)
			switch {
			// keep backlink
			case len(pathSplit) == 3: // url: /ipfs/$hash

			// keep backlink
			case len(pathSplit) == 4 && pathSplit[3] == "": // url: /ipfs/$hash/

			// add the correct link depending on wether the path ends with a slash
			default:
				if strings.HasSuffix(backLink, "/") {
					backLink += "./.."
				} else {
					backLink += "/.."
				}
			}

			// strip /ipfs/$hash from backlink if IPNSHostnameOption touched the path.
			if ipnsHostname {
				backLink = prefix + "/"
				if len(pathSplit) > 5 {
					// also strip the trailing segment, because it's a backlink
					backLinkParts := pathSplit[3 : len(pathSplit)-2]
					backLink += path.Join(backLinkParts) + "/"
				}
			}

			// See comment above where originalUrlPath is declared.
			tplData := listingTemplateData{
				Listing:  dirListing,
				Path:     originalUrlPath,
				BackLink: backLink,
			}
			err := listingTemplate.Execute(w, tplData)
			if err != nil {
				internalWebError(w, err)
				return
			}
		}
	}
}
Exemplo n.º 26
0
		switch len(args) {
		case 2:
			name = args[0]
			pstr = args[1]
			if name != n.Identity.Pretty() {
				res.SetError(errors.New("keychains not yet implemented"), cmds.ErrNormal)
				return
			}
		case 1:
			// name = n.Identity.Pretty()
			pstr = args[0]
		}

		// TODO n.Keychain.Get(name).PrivKey
		// TODO(cryptix): is req.Context().Context a child of n.Context()?
		output, err := publish(req.Context().Context, n, n.PrivateKey, path.Path(pstr))
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
		res.SetOutput(output)
	},
	Marshalers: cmds.MarshalerMap{
		cmds.Text: func(res cmds.Response) (io.Reader, error) {
			v := res.Output().(*IpnsEntry)
			s := fmt.Sprintf("Published to %s: %s\n", v.Name, v.Value)
			return strings.NewReader(s), nil
		},
	},
	Type: IpnsEntry{},
}
Exemplo n.º 27
0
Note that the "--encoding" option does not affect the output, since the output
is the raw data of the object.
`,
	},

	Arguments: []cmds.Argument{
		cmds.StringArg("key", true, false, "Key of the object to retrieve, in base58-encoded multihash format.").EnableStdin(),
	},
	Run: func(req cmds.Request, res cmds.Response) {
		n, err := req.InvocContext().GetNode()
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		fpath := path.Path(req.Arguments()[0])
		node, err := core.Resolve(req.Context(), n, fpath)
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}
		res.SetOutput(bytes.NewReader(node.Data()))
	},
}

var ObjectLinksCmd = &cmds.Command{
	Helptext: cmds.HelpText{
		Tagline: "Outputs the links pointed to by the specified object.",
		ShortDescription: `
'ipfs object links' is a plumbing command for retrieving the links from
a DAG node. It outputs to stdout, and <key> is a base58 encoded
Exemplo n.º 28
0
Arquivo: self.go Projeto: utamaro/core
//NamePublish publish data whose key is hash as myself nodename.
func (m *Self) NamePublish() error {
	p := path.Path("/ipfs/" + m.myIpns.Pretty())
	log.Println("publishing", p)
	return m.ipfsNode.Namesys.Publish(m.ctx, m.ipfsNode.PrivateKey, p)
}