[#174] subnet: Add AddNode method

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
This commit is contained in:
Pavel Karpy 2021-11-22 19:55:07 +03:00 committed by LeL
parent cee4dd76dc
commit 18b5e56727
2 changed files with 83 additions and 7 deletions

View file

@ -24,6 +24,8 @@ const (
ErrSubNotExist = "subnet id doesn't exist"
// ErrNodeAdmNotExist is thrown when node admin is not found.
ErrNodeAdmNotExist = "node admin not found"
// ErrAccessDenied is thrown when operation is denied for caller.
ErrAccessDenied = "access denied"
errCheckWitnessFailed = "owner witness check failed"
@ -166,14 +168,9 @@ func AddNodeAdmin(subnetID []byte, adminKey interop.PublicKey) {
}
stKey[0] = nodeAdminPrefix
prefixLen := len(stKey)
iter := storage.Find(ctx, stKey, storage.KeysOnly)
for iterator.Next(iter) {
key := iterator.Value(iter).([]byte)
if util.Equals(string(key[prefixLen:]), string(adminKey)) {
panic("addNodeAdmin: node admin has already been added")
}
if keyInList(ctx, adminKey, stKey) {
panic("addNodeAdmin: node admin has already been added")
}
storage.Put(ctx, append(stKey, adminKey...), []byte{1})
@ -210,7 +207,68 @@ func RemoveNodeAdmin(subnetID []byte, adminKey interop.PublicKey) {
storage.Delete(ctx, stNodeAdmKey)
}
// AddNode adds node to the specified subnetwork.
// Must be called by subnet's owner or node administrator
// only.
func AddNode(subnetID []byte, node interop.PublicKey) {
if len(node) != interop.PublicKeyCompressedLen {
panic("addNode: " + ErrInvalidAdmin)
}
ctx := storage.GetContext()
stKey := append([]byte{ownerPrefix}, subnetID...)
prefixLen := len(stKey)
rawOwner := storage.Get(ctx, stKey)
if rawOwner == nil {
panic("addNode: " + ErrSubNotExist)
}
owner := rawOwner.([]byte)
if !runtime.CheckWitness(owner) {
var hasAccess bool
stKey[0] = nodeAdminPrefix
iter := storage.Find(ctx, stKey, storage.KeysOnly)
for iterator.Next(iter) {
key := iterator.Value(iter).([]byte)
if runtime.CheckWitness(key[prefixLen:]) {
hasAccess = true
break
}
}
if !hasAccess {
panic("addNode: " + ErrAccessDenied)
}
}
stKey[0] = nodePrefix
if keyInList(ctx, node, stKey) {
panic("addNode: node has already been added")
}
storage.Put(ctx, append(stKey, node...), []byte{1})
}
// Version returns version of the contract.
func Version() int {
return common.Version
}
func keyInList(ctx storage.Context, searchedKey interop.PublicKey, prefix []byte) bool {
prefixLen := len(prefix)
iter := storage.Find(ctx, prefix, storage.KeysOnly)
for iterator.Next(iter) {
key := iterator.Value(iter).([]byte)
if util.Equals(string(key[prefixLen:]), string(searchedKey)) {
return true
}
}
return false
}

View file

@ -124,6 +124,24 @@ func TestSubnet_RemoveNodeAdmin(t *testing.T) {
cOwner.InvokeFail(t, method+errSeparator+subnet.ErrNodeAdmNotExist, method, id, admPub)
}
func TestSubnet_AddNode(t *testing.T) {
e := newSubnetInvoker(t)
id, owner := createSubnet(t, e)
node := e.NewAccount(t)
nodePub, ok := vm.ParseSignatureContract(node.Script())
require.True(t, ok)
const method = "addNode"
cOwn := e.WithSigners(owner)
cOwn.InvokeFail(t, method+errSeparator+subnet.ErrInvalidAdmin, method, id, nodePub[1:])
cOwn.Invoke(t, stackitem.Null{}, method, id, nodePub)
cOwn.InvokeFail(t, method+errSeparator+"node has already been added", method, id, nodePub)
}
func createSubnet(t *testing.T, e *neotest.ContractInvoker) (id []byte, owner neotest.Signer) {
var (
ok bool