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frostfs-contract
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[#74] alphabet: Support notary disabled work flow 

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
enable-notary-in-public-chains
Alex Vanin 2021-04-29 16:06:34 +03:00 committed by Alex Vanin
parent 76aca4c6f5
commit 5e22426768
1 changed files with 56 additions and 5 deletions
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61
alphabet/alphabet_contract.go
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@ -3,6 +3,7 @@ package alphabetcontract
import (
"github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/interop/contract"
"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
@ -112,6 +113,7 @@ func checkPermission(ir []common.IRNode) bool {
func Emit() bool {
ctx := storage.GetReadOnlyContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
alphabet := common.AlphabetNodes()
if !checkPermission(alphabet) {
@ -134,7 +136,15 @@ func Emit() bool {
gas.Transfer(contractHash, proxyAddr, proxyGas, nil)
runtime.Log("utility token has been emitted to proxy contract")
innerRing := common.InnerRingNodes()
var innerRing []common.IRNode
if notaryDisabled {
netmapContract := storage.Get(ctx, netmapKey).(interop.Hash160)
innerRing = common.InnerRingNodesFromNetmap(netmapContract)
} else {
innerRing = common.InnerRingNodes()
}
gasPerNode := gasBalance / 2 * 7 / 8 / len(innerRing)
if gasPerNode != 0 {
@ -150,13 +160,27 @@ func Emit() bool {
}
func Vote(epoch int, candidates []interop.PublicKey) {
ctx := storage.GetReadOnlyContext()
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
index := index(ctx)
name := name(ctx)
multiaddr := common.AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("invalid invoker")
var ( // for invocation collection without notary
alphabet []common.IRNode
nodeKey []byte
)
if notaryDisabled {
alphabet = common.AlphabetNodes()
nodeKey = common.InnerRingInvoker(alphabet)
if len(nodeKey) == 0 {
panic("invalid invoker")
}
} else {
multiaddr := common.AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("invalid invoker")
}
}
curEpoch := currentEpoch(ctx)
@ -167,6 +191,18 @@ func Vote(epoch int, candidates []interop.PublicKey) {
candidate := candidates[index%len(candidates)]
address := runtime.GetExecutingScriptHash()
if notaryDisabled {
threshold := len(alphabet)*2/3 + 1
id := voteID(epoch, candidates)
n := common.Vote(ctx, id, nodeKey)
if n < threshold {
return
}
common.RemoveVotes(ctx, id)
}
ok := neo.Vote(address, candidate)
if ok {
runtime.Log(name + ": successfully voted for validator")
@ -177,6 +213,21 @@ func Vote(epoch int, candidates []interop.PublicKey) {
return
}
func voteID(epoch interface{}, args []interop.PublicKey) []byte {
var (
result []byte
epochBytes = epoch.([]byte)
)
result = append(result, epochBytes...)
for i := range args {
result = append(result, args[i]...)
}
return crypto.Sha256(result)
}
func Name() string {
ctx := storage.GetReadOnlyContext()
return name(ctx)