TrueCloudLab/frostfs-contract
22
0
Fork 19
Code Issues 13 Pull requests 1 Projects Releases 2 Activity Actions

Remove unused functions and fix lint errors

Browse source
This commit is contained in:
alexvanin 2020-07-20 16:09:40 +03:00
parent 1cfbd19e9e
commit 013a70f3bf
1 changed files with 61 additions and 148 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

191
neofs_contract.go
View file

@ -1,5 +1,42 @@
package smart_contract
/*
NeoFS Smart Contract for NEO3.0.
Utility operations, executed once in deploy stage:
- Init(pubKey, ... ) - setup initial inner ring nodes
- InitConfig(key, value, key, value...) - setup initial NeoFS configuration
User operations:
- Deposit(script-hash, amount, script-hash(?)) - deposit gas assets to this script-hash address to NeoFS balance
- Withdraw(script-hash, amount) - initialize gas asset withdraw from NeoFS balance
- Bind(script-hash, pubKeys...) - bind public key with user's account to use it in NeoFS requests
- Unbind(script-hash, pubKeys...) - unbind public key from user's account
Inner ring list operations:
- InnerRingList() - returns array of inner ring node keys
- InnerRingCandidates() - returns array of inner ring candidate node keys
- IsInnerRing(pubKey) - returns 'true' if key is inside of inner ring list
- InnerRingCandidateAdd(pubKey) - adds key to the list of inner ring candidates
- InnerRingCandidateRemove(pubKey) - removes key from the list of inner ring candidates
- InnerRingUpdate(id, pubKeys...) - updates list of inner ring nodes with provided list of public keys
Config operations:
- Config(key) - returns value of NeoFS configuration with key 'key'
- ListConfig() - returns array of all key-value pairs of NeoFS configuration
- SetConfig(id, key, value) - set key-value pair as a NeoFS runtime configuration value
Other utility operations:
- Version - returns contract version
- Cheque(id, script- hash, amount, script-hash) - sends gas assets back to the user if they were successfully
locked in NeoFS balance contract
Parameters:
- (?) - parameter can be omitted
- pubKey - 33 bytes of public key
- id - unique byte sequence
*/
import (
"github.com/nspcc-dev/neo-go/pkg/interop/binary"
"github.com/nspcc-dev/neo-go/pkg/interop/blockchain"
@ -34,14 +71,19 @@ type (
)
const (
// native gas token script hash
tokenHash = "\x3b\x7d\x37\x11\xc6\xf0\xcc\xf9\xb1\xdc\xa9\x03\xd1\xbf\xa1\xd8\x96\xf1\x23\x8c"
defaultCandidateFee = 100 * 1_0000_0000 // 100 Fixed8 Gas
candidateFeeConfigKey = "InnerRingCandidateFee"
version = 2
innerRingKey = "innerring"
voteKey = "ballots"
candidatesKey = "candidates"
cashedChequesKey = "cheques"
blockDiff = 20 // change base on performance evaluation
publicKeySize = 33
minInnerRingSize = 3
@ -58,29 +100,6 @@ func Main(op string, args []interface{}) interface{} {
return false
}
/*
Utility operations - they will be changed in production:
- Deploy(params: address, pubKey, ... ) - setup initial inner ring state
User operations:
- InnerRingList() - get list of inner ring nodes addresses and public keys
- InnerRingCandidateRemove(params: pubKey) - remove node with given public key from the inner ring candidate queue
- InnerRingCandidateAdd(params: pubKey) - add node to the inner ring candidate queue
- Deposit(params: pubKey, amount) - deposit GAS to the NeoFS account
- Withdraw(params: withdrawCheque) - withdraw GAS from the NeoFS account
- InnerRingUpdate(params: irCheque) - change list of inner ring nodes
- IsInnerRing(params: pubKey) - returns true if pubKey presented in inner ring list
- Version() - get version of the NeoFS smart-contract
Params:
- address - string of the valid multiaddress (github.com/multiformats/multiaddr)
- pubKey - 33 byte public key
- withdrawCheque - serialized structure, that confirms GAS transfer;
contains inner ring signatures
- irCheque - serialized structure, that confirms new inner ring node list;
contains inner ring signatures
*/
ctx := storage.GetContext()
switch op {
@ -277,6 +296,7 @@ func Main(op string, args []interface{}) interface{} {
}
var keys [][]byte
for i := 1; i < len(args); i++ {
pub := args[i].([]byte)
if len(pub) != publicKeySize {
@ -367,7 +387,7 @@ func Main(op string, args []interface{}) interface{} {
}
key := args[0].([]byte)
if len(key) != 33 {
if len(key) != publicKeySize {
panic("isInnerRing: incorrect public key")
}
@ -473,119 +493,6 @@ func Main(op string, args []interface{}) interface{} {
panic("unknown operation")
}
// fixme: use strict type deserialization wrappers
func getSerialized(ctx storage.Context, key string) interface{} {
data := storage.Get(ctx, key).([]byte)
if len(data) != 0 {
return binary.Deserialize(data)
}
return nil
}
func delSerialized(ctx storage.Context, key string, value []byte) bool {
data := storage.Get(ctx, key).([]byte)
deleted := false
var newList [][]byte
if len(data) != 0 {
lst := binary.Deserialize(data).([][]byte)
for i := 0; i < len(lst); i++ {
if util.Equals(value, lst[i]) {
deleted = true
} else {
newList = append(newList, lst[i])
}
}
if deleted {
if len(newList) != 0 {
data := binary.Serialize(newList)
storage.Put(ctx, key, data)
} else {
storage.Delete(ctx, key)
}
runtime.Log("target element has been removed")
return true
}
}
runtime.Log("target element has not been removed")
return false
}
func putSerialized(ctx storage.Context, key string, value interface{}) bool {
data := storage.Get(ctx, key).([]byte)
var lst []interface{}
if len(data) != 0 {
lst = binary.Deserialize(data).([]interface{})
}
lst = append(lst, value)
data = binary.Serialize(lst)
storage.Put(ctx, key, data)
return true
}
func pubToScriptHash(pkey []byte) []byte {
// pre := []byte{0x21}
// buf := append(pre, pkey...)
// buf = append(buf, 0xac)
// h := crypto.Hash160(buf)
//
// return h
// fixme: someday ripemd syscall will appear
// or simply store script-hashes along with public key
return []byte{0x0F, 0xED}
}
func containsCheck(lst []cheque, c cheque) bool {
for i := 0; i < len(lst); i++ {
if util.Equals(c, lst[i]) {
return true
}
}
return false
}
func containsPub(lst []node, elem []byte) bool {
for i := 0; i < len(lst); i++ {
e := lst[i]
if util.Equals(elem, e.pub) {
return true
}
}
return false
}
func delSerializedIR(ctx storage.Context, key string, value []byte) bool {
data := storage.Get(ctx, key).([]byte)
deleted := false
newList := []node{}
if len(data) != 0 {
lst := binary.Deserialize(data).([]node)
for i := 0; i < len(lst); i++ {
n := lst[i]
if util.Equals(value, n.pub) {
deleted = true
} else {
newList = append(newList, n)
}
}
if deleted {
data := binary.Serialize(newList)
storage.Put(ctx, key, data)
runtime.Log("target element has been removed")
return true
}
}
runtime.Log("target element has not been removed")
return false
}
// innerRingInvoker returns public key of inner ring node that invoked contract.
func innerRingInvoker(ir []node) []byte {
for i := 0; i < len(ir); i++ {
@ -598,9 +505,11 @@ func innerRingInvoker(ir []node) []byte {
return nil
}
// vote adds ballot for the decision with specific 'id' and returns amount
// on unique voters for that decision.
func vote(ctx storage.Context, id, from []byte) int {
var (
newCandidates []ballot
newCandidates = []ballot{} // it is explicit declaration of empty slice, not nil
candidates = getBallots(ctx)
found = -1
blockHeight = blockchain.GetHeight()
@ -643,9 +552,11 @@ func vote(ctx storage.Context, id, from []byte) int {
return found
}
// removeVotes clears ballots of the decision that has benn aceepted by
// inner ring nodes.
func removeVotes(ctx storage.Context, id []byte) {
var (
newCandidates []ballot
newCandidates = []ballot{} // it is explicit declaration of empty slice, not nil
candidates = getBallots(ctx)
)
@ -721,6 +632,7 @@ func addCheque(lst []cheque, c cheque) ([]cheque, bool) {
}
lst = append(lst, c)
return lst, true
}
@ -734,6 +646,7 @@ func addNode(lst []node, n node) ([]node, bool) {
}
lst = append(lst, n)
return lst, true
}