/
action.go
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/
action.go
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// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package executor
import (
"strings"
"github.com/33cn/chain33/account"
"github.com/33cn/chain33/client"
dbm "github.com/33cn/chain33/common/db"
"github.com/33cn/chain33/system/dapp"
manager "github.com/33cn/chain33/system/dapp/manage/types"
"github.com/33cn/chain33/types"
coinTy "github.com/33cn/plugin/plugin/dapp/coinsx/types"
"github.com/golang/protobuf/proto"
"github.com/pkg/errors"
)
type action struct {
coinsAccount *account.DB
db dbm.KV
localdb dbm.KVDB
txhash []byte
fromaddr string
blocktime int64
height int64
execaddr string
api client.QueueProtocolAPI
tx *types.Transaction
exec *Coinsx
}
func newAction(t *Coinsx, tx *types.Transaction) *action {
hash := tx.Hash()
fromaddr := tx.From()
return &action{t.GetCoinsAccount(), t.GetStateDB(), t.GetLocalDB(), hash, fromaddr,
t.GetBlockTime(), t.GetHeight(), dapp.ExecAddress(string(tx.Execer)), t.GetAPI(), tx, t}
}
func makeManagerStatusReceipt(prev, current *coinTy.ManagerStatus) *types.Receipt {
key := calcManagerStatusKey()
log := &coinTy.ReceiptManagerStatus{
Prev: prev,
Curr: current,
}
return &types.Receipt{
Ty: types.ExecOk,
KV: []*types.KeyValue{
{Key: key, Value: types.Encode(current)},
},
Logs: []*types.ReceiptLog{
{
Ty: coinTy.TyCoinsxManagerStatusLog,
Log: types.Encode(log),
},
},
}
}
// isSuperManager is supper manager or not
func isSuperManager(cfg *types.Chain33Config, addr string) bool {
confManager := types.ConfSub(cfg, manager.ManageX)
for _, m := range confManager.GStrList("superManager") {
if addr == m {
return true
}
}
return false
}
func getSuperManager(cfg *types.Chain33Config) []string {
confManager := types.ConfSub(cfg, manager.ManageX)
return confManager.GStrList("superManager")
}
func getManagerStatus(db dbm.KV) (*coinTy.ManagerStatus, error) {
key := calcManagerStatusKey()
val, err := db.Get(key)
if err != nil {
return nil, err
}
var status coinTy.ManagerStatus
err = types.Decode(val, &status)
return &status, err
}
func (a *action) configTransfer(config *coinTy.TransferFlagConfig) (*types.Receipt, error) {
if config.Flag != coinTy.TransferFlag_DISABLE && config.Flag != coinTy.TransferFlag_ENABLE {
return nil, errors.Wrapf(types.ErrInvalidParam, "flag=%d", config.Flag)
}
stat, err := getManagerStatus(a.db)
if err == types.ErrNotFound {
stat = &coinTy.ManagerStatus{TransferFlag: config.Flag}
return makeManagerStatusReceipt(nil, stat), nil
}
if err != nil {
return nil, errors.Wrap(err, "get manager status")
}
if stat != nil && stat.TransferFlag == config.Flag {
return nil, errors.Wrapf(types.ErrInvalidParam, "same flag set, cur=%d,config=%d", stat.TransferFlag, config.Flag)
}
copyStat := proto.Clone(stat).(*coinTy.ManagerStatus)
stat.TransferFlag = config.Flag
return makeManagerStatusReceipt(copyStat, stat), nil
}
//过滤重复地址
func filterAddrs(addrs []string) []string {
f := make(map[string]bool)
var newAddrs []string
for _, k := range addrs {
if !f[k] {
f[k] = true
newAddrs = append(newAddrs, k)
}
}
return newAddrs
}
func (a *action) addAccounts(addrs []string) (*types.Receipt, error) {
curStat, err := getManagerStatus(a.db)
if err == types.ErrNotFound {
stat := &coinTy.ManagerStatus{TransferFlag: coinTy.TransferFlag_DISABLE}
stat.ManagerAccounts = append(stat.ManagerAccounts, addrs...)
return makeManagerStatusReceipt(nil, stat), nil
}
if err != nil {
return nil, err
}
copyStat := proto.Clone(curStat).(*coinTy.ManagerStatus)
curStat.ManagerAccounts = append(curStat.ManagerAccounts, addrs...)
curStat.ManagerAccounts = filterAddrs(curStat.ManagerAccounts)
return makeManagerStatusReceipt(copyStat, curStat), nil
}
//删除掉指定地址
func filterByAddrs(curr, del []string) []string {
f := make(map[string]bool)
for _, k := range del {
f[k] = true
}
var newAddrs []string
for _, k := range curr {
if !f[k] {
newAddrs = append(newAddrs, k)
}
}
return newAddrs
}
func (a *action) delAccounts(addrs []string) (*types.Receipt, error) {
curStat, err := getManagerStatus(a.db)
if err != nil || err == types.ErrNotFound {
return nil, err
}
copyStat := proto.Clone(curStat).(*coinTy.ManagerStatus)
curStat.ManagerAccounts = filterByAddrs(curStat.ManagerAccounts, addrs)
return makeManagerStatusReceipt(copyStat, curStat), nil
}
func (a *action) configAccounts(config *coinTy.ManagerAccountsConfig) (*types.Receipt, error) {
if config.Op != coinTy.AccountOp_ADD && config.Op != coinTy.AccountOp_DEL {
return nil, errors.Wrapf(types.ErrInvalidParam, "unsupport op=%d ", config.Op)
}
if len(config.Accounts) <= 0 {
return nil, errors.Wrapf(types.ErrInvalidParam, "config accounts=%s", config.Accounts)
}
addrs := strings.Split(config.Accounts, ",")
if config.Op == coinTy.AccountOp_ADD {
return a.addAccounts(addrs)
}
return a.delAccounts(addrs)
}
func (a *action) config(config *coinTy.CoinsConfig, tx *types.Transaction, index int) (*types.Receipt, error) {
cfg := a.api.GetConfig()
from := tx.From()
//from 必须是超级管理员
if !isSuperManager(cfg, from) {
return nil, errors.Wrapf(types.ErrNotAllow, "from=%s is not super manager", from)
}
switch config.Ty {
case coinTy.ConfigType_TRANSFER:
return a.configTransfer(config.GetTransferFlag())
case coinTy.ConfigType_ACCOUNTS:
return a.configAccounts(config.GetManagerAccounts())
}
return nil, errors.Wrapf(types.ErrInvalidParam, "config type=%d not support", config.Ty)
}
func isManager(addr string, managers []string) bool {
for _, m := range managers {
if addr == m {
return true
}
}
return false
}
/*
p2p转账受限规则,to执行器也受限制
1. 超级管理员或者配置了管理员账号 转账不受限
2. 如果未配置转账使能标志或配置为DISABLE,都受限制
3. 配置ENABLE,则不受限
*/
func checkTransferEnable(cfg *types.Chain33Config, db dbm.KV, from, to string) bool {
//节点配置的超级管理员转账不受限
suppers := getSuperManager(cfg)
if isManager(from, suppers) || isManager(to, suppers) {
return true
}
stat, err := getManagerStatus(db)
if stat != nil {
//如果转账不受限,则可以任意转账
if stat.TransferFlag == coinTy.TransferFlag_ENABLE {
return true
}
//如果转账受限,则任一方是管理员才允许转账
if isManager(from, stat.ManagerAccounts) || isManager(to, stat.ManagerAccounts) {
return true
}
}
if err != nil && err != types.ErrNotFound {
clog.Error("checkTransferEnable", "err", err)
}
return false
}