func escapeDhtKey(s string) (key.Key, error) {
parts := strings.Split(s, "/")
switch len(parts) {
case 1:
return key.B58KeyDecode(s), nil
case 3:
k := key.B58KeyDecode(parts[2])
return key.Key(strings.Join(append(parts[:2], string(k)), "/")), nil
default:
return "", errors.New("invalid key")
}
}
func AddMetadataTo(n *core.IpfsNode, skey string, m *ft.Metadata) (string, error) {
ukey := key.B58KeyDecode(skey)
nd, err := n.DAG.Get(n.Context(), ukey)
if err != nil {
return "", err
}
mdnode := new(dag.Node)
mdata, err := ft.BytesForMetadata(m)
if err != nil {
return "", err
}
mdnode.Data = mdata
if err := mdnode.AddNodeLinkClean("file", nd); err != nil {
return "", err
}
nk, err := n.DAG.Add(mdnode)
if err != nil {
return "", err
}
return nk.B58String(), nil
}
func Metadata(n *core.IpfsNode, skey string) (*ft.Metadata, error) {
ukey := key.B58KeyDecode(skey)
nd, err := n.DAG.Get(n.Context(), ukey)
if err != nil {
return nil, err
}
return ft.MetadataFromBytes(nd.Data)
}
func TestMetadata(t *testing.T) {
ctx := context.Background()
// Make some random node
ds := getDagserv(t)
data := make([]byte, 1000)
u.NewTimeSeededRand().Read(data)
r := bytes.NewReader(data)
nd, err := importer.BuildDagFromReader(ds, chunk.DefaultSplitter(r), nil)
if err != nil {
t.Fatal(err)
}
k, err := nd.Key()
if err != nil {
t.Fatal(err)
}
m := new(ft.Metadata)
m.MimeType = "THIS IS A TEST"
// Such effort, many compromise
ipfsnode := &core.IpfsNode{DAG: ds}
mdk, err := AddMetadataTo(ipfsnode, k.B58String(), m)
if err != nil {
t.Fatal(err)
}
rec, err := Metadata(ipfsnode, mdk)
if err != nil {
t.Fatal(err)
}
if rec.MimeType != m.MimeType {
t.Fatalf("something went wrong in conversion: '%s' != '%s'", rec.MimeType, m.MimeType)
}
retnode, err := ds.Get(ctx, key.B58KeyDecode(mdk))
if err != nil {
t.Fatal(err)
}
ndr, err := uio.NewDagReader(ctx, retnode, ds)
if err != nil {
t.Fatal(err)
}
out, err := ioutil.ReadAll(ndr)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(out, data) {
t.Fatal("read incorrect data")
}
}
func loadIndirPin(d ds.Datastore, k ds.Key) (*indirectPin, error) {
var rcStore map[string]int
err := loadSet(d, k, &rcStore)
if err != nil {
return nil, err
}
refcnt := make(map[key.Key]int)
var keys []key.Key
for encK, v := range rcStore {
if v > 0 {
k := key.B58KeyDecode(encK)
keys = append(keys, k)
refcnt[k] = v
}
}
// log.Debugf("indirPin keys: %#v", keys)
return &indirectPin{blockset: set.SimpleSetFromKeys(keys), refCounts: refcnt}, nil
}
func addLinkCaller(req cmds.Request, root *dag.Node) (key.Key, error) {
if len(req.Arguments()) < 4 {
return "", fmt.Errorf("not enough arguments for add-link")
}
nd, err := req.InvocContext().GetNode()
if err != nil {
return "", err
}
path := req.Arguments()[2]
childk := key.B58KeyDecode(req.Arguments()[3])
create, _, err := req.Option("create").Bool()
if err != nil {
return "", err
}
var createfunc func() *dag.Node
if create {
createfunc = func() *dag.Node {
return &dag.Node{Data: ft.FolderPBData()}
}
}
e := dagutils.NewDagEditor(nd.DAG, root)
childnd, err := nd.DAG.Get(req.Context(), childk)
if err != nil {
return "", err
}
err = e.InsertNodeAtPath(req.Context(), path, childnd, createfunc)
if err != nil {
return "", err
}
nnode := e.GetNode()
return nnode.Key()
}
func addAssetList(nd *core.IpfsNode, l []string) (*key.Key, error) {
dirb := uio.NewDirectory(nd.DAG)
for _, p := range l {
d, err := Asset(p)
if err != nil {
return nil, fmt.Errorf("assets: could load Asset '%s': %s", p, err)
}
s, err := coreunix.Add(nd, bytes.NewBuffer(d))
if err != nil {
return nil, fmt.Errorf("assets: could not Add '%s': %s", p, err)
}
fname := filepath.Base(p)
k := key.B58KeyDecode(s)
if err := dirb.AddChild(nd.Context(), fname, k); err != nil {
return nil, fmt.Errorf("assets: could not add '%s' as a child: %s", fname, err)
}
}
dir := dirb.GetNode()
dkey, err := nd.DAG.Add(dir)
if err != nil {
return nil, fmt.Errorf("assets: DAG.Add(dir) failed: %s", err)
}
if err := nd.Pinning.Pin(nd.Context(), dir, true); err != nil {
return nil, fmt.Errorf("assets: Pinning on init-docu failed: %s", err)
}
if err := nd.Pinning.Flush(); err != nil {
return nil, fmt.Errorf("assets: Pinning flush failed: %s", err)
}
return &dkey, nil
}
}
if !nd.OnlineMode() {
res.SetError(errNotOnline, cmds.ErrClient)
return
}
bs, ok := nd.Exchange.(*bitswap.Bitswap)
if !ok {
res.SetError(u.ErrCast(), cmds.ErrNormal)
return
}
var ks []key.Key
for _, arg := range req.Arguments() {
dec := key.B58KeyDecode(arg)
if dec == "" {
res.SetError(fmt.Errorf("incorrectly formatted key: %s", arg), cmds.ErrNormal)
return
}
ks = append(ks, dec)
}
bs.CancelWants(ks)
},
}
var showWantlistCmd = &cmds.Command{
Helptext: cmds.HelpText{
Tagline: "Show blocks currently on the wantlist",
cmds.StringArg("command", true, false, "the operation to perform"),
cmds.StringArg("args", true, true, "extra arguments").EnableStdin(),
},
Type: Object{},
Run: func(req cmds.Request, res cmds.Response) {
nd, err := req.InvocContext().GetNode()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
rootarg := req.Arguments()[0]
if strings.HasPrefix(rootarg, "/ipfs/") {
rootarg = rootarg[6:]
}
rhash := key.B58KeyDecode(rootarg)
if rhash == "" {
res.SetError(fmt.Errorf("incorrectly formatted root hash: %s", req.Arguments()[0]), cmds.ErrNormal)
return
}
rnode, err := nd.DAG.Get(req.Context(), rhash)
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
action := req.Arguments()[1]
switch action {
case "add-link":
dht, ok := n.Routing.(*ipdht.IpfsDHT)
if !ok {
res.SetError(ErrNotDHT, cmds.ErrNormal)
return
}
numProviders := 20
outChan := make(chan interface{})
res.SetOutput((<-chan interface{})(outChan))
events := make(chan *notif.QueryEvent)
ctx := notif.RegisterForQueryEvents(req.Context(), events)
pchan := dht.FindProvidersAsync(ctx, key.B58KeyDecode(req.Arguments()[0]), numProviders)
go func() {
defer close(outChan)
for e := range events {
outChan <- e
}
}()
go func() {
defer close(events)
for p := range pchan {
np := p
notif.PublishQueryEvent(ctx, ¬if.QueryEvent{
Type: notif.Provider,
Responses: []*peer.PeerInfo{&np},
})