frostfs-node/pkg/innerring/invoke/netmap.go

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package invoke
import (
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/pkg/errors"
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)
type (
UpdatePeerArgs struct {
Key *keys.PublicKey
Status netmap.NodeState
}
SetConfigArgs struct {
ID []byte
Key []byte
Value []byte
}
)
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const (
getEpochMethod = "epoch"
setNewEpochMethod = "newEpoch"
approvePeerMethod = "addPeer"
updatePeerStateMethod = "updateState"
setConfigMethod = "setConfigMethod"
getNetmapSnapshotMethod = "netmap"
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)
// Epoch return epoch value from contract.
func Epoch(cli *client.Client, con util.Uint160) (int64, error) {
if cli == nil {
return 0, client.ErrNilClient
}
val, err := cli.TestInvoke(con, getEpochMethod)
if err != nil {
return 0, err
}
epoch, err := client.IntFromStackItem(val[0])
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if err != nil {
return 0, err
}
return epoch, nil
}
// SetNewEpoch invokes newEpoch method.
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func SetNewEpoch(cli *client.Client, con util.Uint160, epoch uint64) error {
if cli == nil {
return client.ErrNilClient
}
return cli.NotaryInvoke(con, setNewEpochMethod, int64(epoch))
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}
// ApprovePeer invokes addPeer method.
func ApprovePeer(cli *client.Client, con util.Uint160, peer []byte) error {
if cli == nil {
return client.ErrNilClient
}
return cli.NotaryInvoke(con, approvePeerMethod, peer)
}
// UpdatePeerState invokes addPeer method.
func UpdatePeerState(cli *client.Client, con util.Uint160, args *UpdatePeerArgs) error {
if cli == nil {
return client.ErrNilClient
}
return cli.NotaryInvoke(con, updatePeerStateMethod,
int64(args.Status.ToV2()),
args.Key.Bytes(),
)
}
// SetConfig invokes setConfig method.
func SetConfig(cli *client.Client, con util.Uint160, args *SetConfigArgs) error {
if cli == nil {
return client.ErrNilClient
}
return cli.NotaryInvoke(con, setConfigMethod,
args.ID,
args.Key,
args.Value,
)
}
// NetmapSnapshot returns current netmap node infos.
// Consider using pkg/morph/client/netmap for this.
func NetmapSnapshot(cli *client.Client, con util.Uint160) (*netmap.Netmap, error) {
if cli == nil {
return nil, client.ErrNilClient
}
rawNetmapStack, err := cli.TestInvoke(con, getNetmapSnapshotMethod)
if err != nil {
return nil, err
}
if ln := len(rawNetmapStack); ln != 1 {
return nil, errors.New("invalid RPC response")
}
rawNodeInfos, err := client.ArrayFromStackItem(rawNetmapStack[0])
if err != nil {
return nil, err
}
result := make([]netmap.NodeInfo, 0, len(rawNodeInfos))
for i := range rawNodeInfos {
nodeInfo, err := peerInfoFromStackItem(rawNodeInfos[i])
if err != nil {
return nil, errors.Wrap(err, "invalid RPC response")
}
result = append(result, *nodeInfo)
}
return netmap.NewNetmap(netmap.NodesFromInfo(result))
}
func peerInfoFromStackItem(prm stackitem.Item) (*netmap.NodeInfo, error) {
node := netmap.NewNodeInfo()
subItems, err := client.ArrayFromStackItem(prm)
if err != nil {
return nil, err
} else if ln := len(subItems); ln != 1 {
return nil, errors.New("invalid RPC response")
} else if rawNodeInfo, err := client.BytesFromStackItem(subItems[0]); err != nil {
return nil, err
} else if err = node.Unmarshal(rawNodeInfo); err != nil {
return nil, err
}
return node, nil
}