/
entrust.go
116 lines (97 loc) · 2.93 KB
/
entrust.go
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package executor
import (
"github.com/33cn/chain33/common/address"
dbm "github.com/33cn/chain33/common/db"
"github.com/33cn/chain33/types"
et "github.com/33cn/plugin/plugin/dapp/exchange/types"
)
var (
exchangeBindKeyPrefix = []byte("mavl-exchange-ebind-")
)
func (a *Action) ExchangeBind(payload *et.ExchangeBind) (*types.Receipt, error) {
if a.fromaddr != payload.GetExchangeAddress() {
return nil, types.ErrFromAddr
}
// 为空时代表解除绑定,不为空时校验地址格式
if len(payload.GetEntrustAddress()) > 0 {
if err := address.CheckAddress(payload.GetEntrustAddress()); err != nil {
return nil, err
}
}
var logs []*types.ReceiptLog
var kvs []*types.KeyValue
oldbind := a.getBind(payload.GetExchangeAddress())
log := getBindLog(payload, oldbind)
logs = append(logs, log)
saveBind(a.statedb, payload)
kv := getBindKV(payload)
kvs = append(kvs, kv...)
kvs = append(kvs, kv...)
receipt := &types.Receipt{Ty: types.ExecOk, KV: kvs, Logs: logs}
return receipt, nil
}
func (a *Action) EntrustOrder(payload *et.EntrustOrder) (*types.Receipt, error) {
entrustAddr, addr := a.fromaddr, payload.Addr
if !a.checkBind(entrustAddr, addr) {
return nil, et.ErrBindAddr
}
a.fromaddr = addr
limitOrder := &et.LimitOrder{
LeftAsset: payload.LeftAsset,
RightAsset: payload.RightAsset,
Price: payload.Price,
Amount: payload.Amount,
Op: payload.Op,
}
return a.LimitOrder(limitOrder, entrustAddr)
}
func (a *Action) EntrustRevokeOrder(payload *et.EntrustRevokeOrder) (*types.Receipt, error) {
entrustAddr, addr := a.fromaddr, payload.Addr
if !a.checkBind(entrustAddr, addr) {
return nil, et.ErrBindAddr
}
a.fromaddr = payload.Addr
revokeOrder := &et.RevokeOrder{OrderID: payload.OrderID}
return a.RevokeOrder(revokeOrder)
}
func (a *Action) checkBind(entrustAddr, addr string) bool {
return a.getBind(addr) == entrustAddr
}
func (a *Action) getBind(addr string) string {
value, err := a.statedb.Get(bindKey(addr))
if err != nil || value == nil {
return ""
}
var bind et.ExchangeBind
err = types.Decode(value, &bind)
if err != nil {
panic(err)
}
return bind.GetEntrustAddress()
}
func bindKey(id string) (key []byte) {
key = append(key, exchangeBindKeyPrefix...)
key = append(key, []byte(id)...)
return key
}
func getBindLog(payload *et.ExchangeBind, old string) *types.ReceiptLog {
log := &types.ReceiptLog{}
log.Ty = et.TyExchangeBindLog
r := &et.ReceiptExchangeBind{}
r.ExchangeAddress = payload.ExchangeAddress
r.OldEntrustAddress = old
r.NewEntrustAddress = payload.EntrustAddress
log.Log = types.Encode(r)
return log
}
func saveBind(db dbm.KV, payload *et.ExchangeBind) {
set := getBindKV(payload)
for i := 0; i < len(set); i++ {
db.Set(set[i].GetKey(), set[i].Value)
}
}
func getBindKV(payload *et.ExchangeBind) (kvset []*types.KeyValue) {
value := types.Encode(payload)
kvset = append(kvset, &types.KeyValue{Key: bindKey(payload.ExchangeAddress), Value: value})
return kvset
}