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hashlockdb.go
executable file
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hashlockdb.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
//database opeartion for execs hashlock
import (
"encoding/json"
"fmt"
"github.com/33cn/chain33/account"
"github.com/33cn/chain33/client"
"github.com/33cn/chain33/common"
dbm "github.com/33cn/chain33/common/db"
log "github.com/33cn/chain33/common/log/log15"
"github.com/33cn/chain33/types"
pty "github.com/33cn/plugin/plugin/dapp/hashlock/types"
)
var hlog = log.New("module", "hashlock.db")
const (
hashlockLocked = 1
hashlockUnlocked = 2
hashlockSent = 3
)
// DB struct
type DB struct {
pty.Hashlock
}
// NewDB instance
func NewDB(id []byte, returnWallet string, toAddress string, blocktime int64, amount int64, time int64) *DB {
h := &DB{}
h.HashlockId = id
h.ReturnAddress = returnWallet
h.ToAddress = toAddress
h.CreateTime = blocktime
h.Status = hashlockLocked
h.Amount = amount
h.Frozentime = time
return h
}
// GetKVSet for hashlock
func (h *DB) GetKVSet() (kvset []*types.KeyValue) {
value := types.Encode(&h.Hashlock)
kvset = append(kvset, &types.KeyValue{Key: Key(h.HashlockId), Value: value})
return kvset
}
// Save KV
func (h *DB) Save(db dbm.KV) {
set := h.GetKVSet()
for i := 0; i < len(set); i++ {
db.Set(set[i].GetKey(), set[i].Value)
}
}
// Key for hashlock
func Key(id []byte) (key []byte) {
key = append(key, []byte("mavl-hashlock-")...)
key = append(key, id...)
return key
}
// Action def
type Action struct {
coinsAccount *account.DB
db dbm.KV
txhash []byte
fromaddr string
blocktime int64
height int64
execaddr string
api client.QueueProtocolAPI
}
// NewAction gen action instance
func NewAction(h *Hashlock, tx *types.Transaction, execaddr string) *Action {
hash := tx.Hash()
fromaddr := tx.From()
return &Action{h.GetCoinsAccount(), h.GetStateDB(), hash, fromaddr, h.GetBlockTime(), h.GetHeight(), execaddr, h.GetAPI()}
}
// Hashlocklock Action
func (action *Action) Hashlocklock(hlock *pty.HashlockLock) (*types.Receipt, error) {
var logs []*types.ReceiptLog
var kv []*types.KeyValue
var err error
//不存在相同的hashlock,假定采用sha256
cfg := action.api.GetConfig()
if cfg.IsDappFork(action.height, pty.HashlockX, pty.ForkBadRepeatSecretX) {
_, err = readHashlock(action.db, hlock.Hash)
} else {
_, err = readHashlock(action.db, common.Sha256(hlock.Hash))
}
if err != types.ErrNotFound {
hlog.Error("Hashlocklock", "hlock.Hash repeated", hlock.Hash)
return nil, pty.ErrHashlockReapeathash
}
h := NewDB(hlock.Hash, action.fromaddr, hlock.ToAddress, action.blocktime, hlock.Amount, hlock.Time)
//冻结子账户资金
receipt, err := action.coinsAccount.ExecFrozen(action.fromaddr, action.execaddr, hlock.Amount)
if err != nil {
hlog.Error("Hashlocklock.Frozen", "addr", action.fromaddr, "execaddr", action.execaddr, "amount", hlock.Amount)
return nil, err
}
h.Save(action.db)
logs = append(logs, receipt.Logs...)
kv = append(kv, receipt.KV...)
//logs = append(logs, h.GetReceiptLog())
kv = append(kv, h.GetKVSet()...)
receipt = &types.Receipt{Ty: types.ExecOk, KV: kv, Logs: logs}
return receipt, nil
}
// Hashlockunlock Action
func (action *Action) Hashlockunlock(unlock *pty.HashlockUnlock) (*types.Receipt, error) {
var logs []*types.ReceiptLog
var kv []*types.KeyValue
hash, err := readHashlock(action.db, common.Sha256(unlock.Secret))
if err != nil {
hlog.Error("Hashlockunlock", "unlock.Secret", unlock.Secret)
return nil, err
}
if hash.ReturnAddress != action.fromaddr {
hlog.Error("Hashlockunlock.Frozen", "action.fromaddr", action.fromaddr)
return nil, pty.ErrHashlockReturnAddrss
}
if hash.Status != hashlockLocked {
hlog.Error("Hashlockunlock", "hash.Status", hash.Status)
return nil, pty.ErrHashlockStatus
}
if action.blocktime-hash.GetCreateTime() < hash.Frozentime {
hlog.Error("Hashlockunlock", "action.blocktime-hash.GetCreateTime", action.blocktime-hash.GetCreateTime())
return nil, pty.ErrTime
}
//different with typedef in C
h := &DB{*hash}
receipt, errR := action.coinsAccount.ExecActive(h.ReturnAddress, action.execaddr, h.Amount)
if errR != nil {
hlog.Error("ExecActive error", "ReturnAddress", h.ReturnAddress, "execaddr", action.execaddr, "amount", h.Amount)
return nil, errR
}
h.Status = hashlockUnlocked
h.Save(action.db)
logs = append(logs, receipt.Logs...)
kv = append(kv, receipt.KV...)
//logs = append(logs, t.GetReceiptLog())
kv = append(kv, h.GetKVSet()...)
receipt = &types.Receipt{Ty: types.ExecOk, KV: kv, Logs: logs}
return receipt, nil
}
// Hashlocksend Action
func (action *Action) Hashlocksend(send *pty.HashlockSend) (*types.Receipt, error) {
var logs []*types.ReceiptLog
var kv []*types.KeyValue
hash, err := readHashlock(action.db, common.Sha256(send.Secret))
if err != nil {
hlog.Error("Hashlocksend", "send.Secret", send.Secret)
return nil, err
}
if hash.Status != hashlockLocked {
hlog.Error("Hashlocksend", "hash.Status", hash.Status)
return nil, pty.ErrHashlockStatus
}
if action.fromaddr != hash.ToAddress {
hlog.Error("Hashlocksend", "action.fromaddr", action.fromaddr, "hash.ToAddress", hash.ToAddress)
return nil, pty.ErrHashlockSendAddress
}
if action.blocktime-hash.GetCreateTime() > hash.Frozentime {
hlog.Error("Hashlocksend", "action.blocktime-hash.GetCreateTime", action.blocktime-hash.GetCreateTime())
return nil, pty.ErrTime
}
//different with typedef in C
h := &DB{*hash}
receipt, errR := action.coinsAccount.ExecTransferFrozen(h.ReturnAddress, h.ToAddress, action.execaddr, h.Amount)
if errR != nil {
hlog.Error("ExecTransferFrozen error", "ReturnAddress", h.ReturnAddress, "ToAddress", h.ToAddress, "execaddr", action.execaddr, "amount", h.Amount)
return nil, errR
}
h.Status = hashlockSent
h.Save(action.db)
logs = append(logs, receipt.Logs...)
kv = append(kv, receipt.KV...)
//logs = append(logs, t.GetReceiptLog())
kv = append(kv, h.GetKVSet()...)
receipt = &types.Receipt{Ty: types.ExecOk, KV: kv, Logs: logs}
return receipt, nil
}
func readHashlock(db dbm.KV, id []byte) (*pty.Hashlock, error) {
data, err := db.Get(Key(id))
if err != nil {
return nil, err
}
var hashlock pty.Hashlock
//decode
err = types.Decode(data, &hashlock)
if err != nil {
return nil, err
}
return &hashlock, nil
}
// NewHashlockquery gen query instance
func NewHashlockquery() *pty.Hashlockquery {
q := pty.Hashlockquery{}
return &q
}
func calcHashlockIDKey(id []byte) []byte {
return append([]byte("LODB-hashlock-"), id...)
}
// GeHashReciverKV gen KV
func GeHashReciverKV(hashlockID []byte, information *pty.Hashlockquery) *types.KeyValue {
clog.Error("GeHashReciverKV action")
infor := pty.Hashlockquery{Time: information.Time, Status: information.Status, Amount: information.Amount, CreateTime: information.CreateTime, CurrentTime: information.CurrentTime}
clog.Error("GeHashReciverKV action", "Status", information.Status)
reciver, err := json.Marshal(infor)
if err == nil {
fmt.Println("成功转换为json格式")
} else {
fmt.Println(err)
}
clog.Error("GeHashReciverKV action", "reciver", reciver)
kv := &types.KeyValue{Key: calcHashlockIDKey(hashlockID), Value: reciver}
clog.Error("GeHashReciverKV action", "kv", kv)
return kv
}
// GetHashReciver get hashlock
func GetHashReciver(db dbm.KVDB, hashlockID []byte) (*pty.Hashlockquery, error) {
//reciver := types.Int64{}
clog.Error("GetHashReciver action", "hashlockID", hashlockID)
reciver := NewHashlockquery()
hashReciver, err := db.Get(hashlockID)
if err != nil {
clog.Error("Get err")
return reciver, err
}
fmt.Println(hashReciver)
if hashReciver == nil {
clog.Error("nilnilnilllllllllll")
}
clog.Error("hashReciver", "len", len(hashReciver))
clog.Error("GetHashReciver", "hashReciver", hashReciver)
err = json.Unmarshal(hashReciver, reciver)
if err != nil {
clog.Error("hashReciver Unmarshal")
return nil, err
}
clog.Error("GetHashReciver", "reciver", reciver)
return reciver, nil
}
// SetHashReciver save hashlock
func SetHashReciver(db dbm.KVDB, hashlockID []byte, information *pty.Hashlockquery) error {
clog.Error("SetHashReciver action")
kv := GeHashReciverKV(hashlockID, information)
return db.Set(kv.Key, kv.Value)
}
// UpdateHashReciver update status for hashlock
func UpdateHashReciver(cachedb dbm.KVDB, hashlockID []byte, information pty.Hashlockquery) (*types.KeyValue, error) {
clog.Error("UpdateHashReciver", "hashlockId", hashlockID)
recv, err := GetHashReciver(cachedb, hashlockID)
if err != nil && err != types.ErrNotFound {
clog.Error("UpdateHashReciver", "err", err)
return nil, err
}
fmt.Println(recv)
clog.Error("UpdateHashReciver", "recv", recv)
// clog.Error("UpdateHashReciver", "Status", information.Status)
// var action types.Action
//当处于lock状态时,在db中是找不到的,此时需要创建并存储于db中,其他状态则能从db中找到
if information.Status == hashlockLocked {
clog.Error("UpdateHashReciver", "Hashlock_Locked", hashlockLocked)
if err == types.ErrNotFound {
clog.Error("UpdateHashReciver", "Hashlock_Locked")
recv.Time = information.Time
recv.Status = hashlockLocked //1
recv.Amount = information.Amount
recv.CreateTime = information.CreateTime
// clog.Error("UpdateHashReciver", "Statuslock", recv.Status)
clog.Error("UpdateHashReciver", "recv", recv)
}
} else if information.Status == hashlockUnlocked {
clog.Error("UpdateHashReciver", "Hashlock_Unlocked", hashlockUnlocked)
if err == nil {
recv.Status = hashlockUnlocked //2
// clog.Error("UpdateHashReciver", "Statusunlock", recv.Status)
clog.Error("UpdateHashReciver", "recv", recv)
}
} else if information.Status == hashlockSent {
clog.Error("UpdateHashReciver", "Hashlock_Sent", hashlockSent)
if err == nil {
recv.Status = hashlockSent //3
// clog.Error("UpdateHashReciver", "Statussend", recv.Status)
clog.Error("UpdateHashReciver", "recv", recv)
}
}
SetHashReciver(cachedb, hashlockID, recv)
//keyvalue
return GeHashReciverKV(hashlockID, recv), nil
}
// GetTxsByHashlockID get hashlock record
func (n *Hashlock) GetTxsByHashlockID(hashlockID []byte, differTime int64) (types.Message, error) {
clog.Error("GetTxsByHashlockId action")
db := n.GetLocalDB()
query, err := GetHashReciver(db, hashlockID)
if err != nil {
return nil, err
}
query.CurrentTime = differTime
// qresult := types.Hashlockquery{query.Time, query.Status, query.Amount, query.CreateTime, currentTime}
return query, nil
}