[#74] neofs: Support notary disabled work flow

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2021-04-29 16:15:29 +03:00 committed by Alex Vanin
parent 400b9bebb4
commit 9cc57dcdf8

View file

@ -36,6 +36,7 @@ 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/iterator"
"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/std"
@ -155,11 +156,29 @@ func InnerRingCandidates() []common.IRNode {
// InnerRingCandidateRemove removes key from the list of inner ring candidates.
func InnerRingCandidateRemove(key interop.PublicKey) bool {
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
multiaddr := AlphabetAddress()
if !runtime.CheckWitness(key) && !runtime.CheckWitness(multiaddr) {
var ( // for invocation collection without notary
alphabet []common.IRNode
nodeKey []byte
)
keyOwner := runtime.CheckWitness(key)
if !keyOwner {
if notaryDisabled {
alphabet = getNodes(ctx, alphabetKey)
nodeKey = common.InnerRingInvoker(alphabet)
if len(nodeKey) == 0 {
panic("irCandidateRemove: this method must be invoked by candidate or alphabet")
}
} else {
multiaddr := AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("irCandidateRemove: this method must be invoked by candidate or alphabet")
}
}
}
nodes := []common.IRNode{} // it is explicit declaration of empty slice, not nil
candidates := getNodes(ctx, candidatesKey)
@ -173,6 +192,19 @@ func InnerRingCandidateRemove(key interop.PublicKey) bool {
}
}
if notaryDisabled && !keyOwner {
threshold := len(alphabet)*2/3 + 1
id := append(key, []byte("delete")...)
hashID := crypto.Sha256(id)
n := common.Vote(ctx, hashID, nodeKey)
if n < threshold {
return true
}
common.RemoveVotes(ctx, hashID)
}
common.SetSerialized(ctx, candidatesKey, nodes)
return true
@ -274,15 +306,30 @@ func Withdraw(user interop.Hash160, amount int) bool {
panic("withdraw: out of max amount limit")
}
// transfer fee to proxy contract to pay cheque invocation
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
// transfer fee to proxy contract to pay cheque invocation
fee := getConfig(ctx, withdrawFeeConfigKey).(int)
if notaryDisabled {
alphabet := getNodes(ctx, alphabetKey)
for _, node := range alphabet {
processingAddr := contract.CreateStandardAccount(node.PublicKey)
transferred := gas.Transfer(user, processingAddr, fee, []byte{})
if !transferred {
panic("withdraw: failed to transfer withdraw fee, aborting")
}
}
} else {
processingAddr := storage.Get(ctx, processingContractKey).(interop.Hash160)
transferred := gas.Transfer(user, processingAddr, fee, []byte{})
if !transferred {
panic("withdraw: failed to transfer withdraw fee, aborting")
}
}
// notify alphabet nodes
amount = amount * 100000000
@ -296,13 +343,40 @@ func Withdraw(user interop.Hash160, amount int) bool {
// Cheque sends gas assets back to the user if they were successfully
// locked in NeoFS balance contract.
func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) bool {
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
var ( // for invocation collection without notary
alphabet []common.IRNode
nodeKey []byte
)
if notaryDisabled {
alphabet = getNodes(ctx, alphabetKey)
nodeKey = common.InnerRingInvoker(alphabet)
if len(nodeKey) == 0 {
panic("cheque: this method must be invoked by alphabet")
}
} else {
multiaddr := AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("cheque: this method must be invoked by alphabet")
}
}
from := runtime.GetExecutingScriptHash()
if notaryDisabled {
threshold := len(alphabet)*2/3 + 1
n := common.Vote(ctx, id, nodeKey)
if n < threshold {
return true
}
common.RemoveVotes(ctx, id)
}
transferred := gas.Transfer(from, user, amount, nil)
if !transferred {
panic("cheque: failed to transfer funds, aborting")
@ -352,17 +426,31 @@ func Unbind(user []byte, keys []interop.PublicKey) bool {
// AlphabetUpdate updates list of alphabet nodes with provided list of
// public keys.
func AlphabetUpdate(chequeID []byte, args []interop.PublicKey) bool {
func AlphabetUpdate(id []byte, args []interop.PublicKey) bool {
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
if len(args) == 0 {
panic("alphabetUpdate: bad arguments")
}
var ( // for invocation collection without notary
alphabet []common.IRNode
nodeKey []byte
)
if notaryDisabled {
alphabet = getNodes(ctx, alphabetKey)
nodeKey = common.InnerRingInvoker(alphabet)
if len(nodeKey) == 0 {
panic("alphabetUpdate: this method must be invoked by alphabet")
}
} else {
multiaddr := AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("alphabetUpdate: this method must be invoked by alphabet")
}
}
newAlphabet := []common.IRNode{}
@ -377,9 +465,20 @@ func AlphabetUpdate(chequeID []byte, args []interop.PublicKey) bool {
})
}
if notaryDisabled {
threshold := len(alphabet)*2/3 + 1
n := common.Vote(ctx, id, nodeKey)
if n < threshold {
return true
}
common.RemoveVotes(ctx, id)
}
common.SetSerialized(ctx, alphabetKey, newAlphabet)
runtime.Notify("AlphabetUpdate", chequeID, newAlphabet)
runtime.Notify("AlphabetUpdate", id, newAlphabet)
runtime.Log("alphabetUpdate: alphabet list has been updated")
return true
@ -394,11 +493,36 @@ func Config(key []byte) interface{} {
// SetConfig key-value pair as a NeoFS runtime configuration value.
func SetConfig(id, key, val []byte) bool {
ctx := storage.GetContext()
notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
var ( // for invocation collection without notary
alphabet []common.IRNode
nodeKey []byte
)
if notaryDisabled {
alphabet = getNodes(ctx, alphabetKey)
nodeKey = common.InnerRingInvoker(alphabet)
if len(key) == 0 {
panic("setConfig: this method must be invoked by alphabet")
}
} else {
multiaddr := AlphabetAddress()
if !runtime.CheckWitness(multiaddr) {
panic("setConfig: this method must be invoked by alphabet")
}
}
if notaryDisabled {
threshold := len(alphabet)*2/3 + 1
n := common.Vote(ctx, id, nodeKey)
if n < threshold {
return true
}
common.RemoveVotes(ctx, id)
}
setConfig(ctx, key, val)