/
exec.go
265 lines (235 loc) · 8.12 KB
/
exec.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 (
"github.com/33cn/chain33/account"
dbm "github.com/33cn/chain33/common/db"
"github.com/33cn/chain33/system/dapp"
"github.com/33cn/chain33/types"
pty "github.com/33cn/plugin/plugin/dapp/unfreeze/types"
)
// Exec_Create 执行创建冻结合约
func (u *Unfreeze) Exec_Create(payload *pty.UnfreezeCreate, tx *types.Transaction, index int) (*types.Receipt, error) {
if payload.AssetExec == "" || payload.AssetSymbol == "" || payload.TotalCount <= 0 || payload.Means == "" {
return nil, types.ErrInvalidParam
}
unfreeze, err := u.newEntity(payload, tx)
if err != nil {
uflog.Error("unfreeze create entity", "addr", tx.From(), "payload", payload)
return nil, err
}
receipt1, err := u.create(unfreeze)
if err != nil {
uflog.Error("unfreeze create order", "addr", tx.From(), "unfreeze", unfreeze)
return nil, err
}
cfg := u.GetAPI().GetConfig()
acc, err := account.NewAccountDB(cfg, payload.AssetExec, payload.AssetSymbol, u.GetStateDB())
if err != nil {
uflog.Error("unfreeze create new account", "addr", tx.From(), "execAddr",
dapp.ExecAddress(string(tx.Execer)), "exec", payload.AssetExec, "symbol", payload.AssetSymbol)
return nil, err
}
receipt, err := acc.ExecFrozen(unfreeze.Initiator, dapp.ExecAddress(string(tx.Execer)), payload.TotalCount)
if err != nil {
uflog.Error("unfreeze create exec frozen", "addr", tx.From(), "execAddr", dapp.ExecAddress(string(tx.Execer)),
"ExecFrozen amount", payload.TotalCount, "exec", payload.AssetExec, "symbol", payload.AssetSymbol)
return nil, err
}
return mergeReceipt(receipt, receipt1)
}
// Exec_Withdraw 执行冻结合约中提币
func (u *Unfreeze) Exec_Withdraw(payload *pty.UnfreezeWithdraw, tx *types.Transaction, index int) (*types.Receipt, error) {
cfg := u.GetAPI().GetConfig()
if cfg.IsDappFork(u.GetHeight(), pty.UnfreezeX, pty.ForkUnfreezeIDX) {
payload.UnfreezeID = unfreezeIDFromHex(payload.UnfreezeID)
}
unfreeze, err := loadUnfreeze(payload.UnfreezeID, u.GetStateDB())
if err != nil {
return nil, err
}
if unfreeze.Beneficiary != tx.From() {
uflog.Error("unfreeze withdraw no privilege", "beneficiary", unfreeze.Beneficiary, "txFrom", tx.From())
return nil, pty.ErrNoPrivilege
}
if unfreeze.Remaining <= 0 {
uflog.Error("unfreeze withdraw no asset")
return nil, pty.ErrUnfreezeEmptied
}
amount, receipt1, err := u.withdraw(unfreeze)
if err != nil {
uflog.Error("unfreeze withdraw withdraw", "err", err, "unfreeze", unfreeze)
return nil, err
}
acc, err := account.NewAccountDB(cfg, unfreeze.AssetExec, unfreeze.AssetSymbol, u.GetStateDB())
if err != nil {
return nil, err
}
execAddr := dapp.ExecAddress(string(tx.Execer))
receipt, err := acc.ExecTransferFrozen(unfreeze.Initiator, tx.From(), execAddr, amount)
if err != nil {
uflog.Error("unfreeze withdraw transfer", "execaddr", execAddr, "err", err, "from", unfreeze.Initiator,
"remain", unfreeze.Remaining, "withdraw", amount)
return nil, err
}
return mergeReceipt(receipt, receipt1)
}
// Exec_Terminate 执行终止冻结合约
func (u *Unfreeze) Exec_Terminate(payload *pty.UnfreezeTerminate, tx *types.Transaction, index int) (*types.Receipt, error) {
cfg := u.GetAPI().GetConfig()
if cfg.IsDappFork(u.GetHeight(), pty.UnfreezeX, pty.ForkUnfreezeIDX) {
payload.UnfreezeID = unfreezeIDFromHex(payload.UnfreezeID)
}
unfreeze, err := loadUnfreeze(payload.UnfreezeID, u.GetStateDB())
if err != nil {
return nil, err
}
if tx.From() != unfreeze.Initiator {
uflog.Error("unfreeze terminate no privilege", "err", pty.ErrUnfreezeID, "initiator",
unfreeze.Initiator, "from", tx.From())
return nil, pty.ErrNoPrivilege
}
amount, receipt1, err := u.terminator(unfreeze)
if err != nil {
uflog.Error("unfreeze terminate ", "err", err, "unfreeze", unfreeze)
return nil, err
}
acc, err := account.NewAccountDB(cfg, unfreeze.AssetExec, unfreeze.AssetSymbol, u.GetStateDB())
if err != nil {
return nil, err
}
execAddr := dapp.ExecAddress(string(tx.Execer))
receipt, err := acc.ExecActive(unfreeze.Initiator, execAddr, amount)
if err != nil {
uflog.Error("unfreeze terminate ", "addr", unfreeze.Initiator, "execaddr", execAddr, "err", err)
return nil, err
}
return mergeReceipt(receipt, receipt1)
}
func (u *Unfreeze) newEntity(payload *pty.UnfreezeCreate, tx *types.Transaction) (*pty.Unfreeze, error) {
id := unfreezeID(tx.Hash())
unfreeze := &pty.Unfreeze{
UnfreezeID: string(id),
StartTime: payload.StartTime,
AssetExec: payload.AssetExec,
AssetSymbol: payload.AssetSymbol,
TotalCount: payload.TotalCount,
Remaining: payload.TotalCount,
Initiator: tx.From(),
Beneficiary: payload.Beneficiary,
Means: payload.Means,
}
if unfreeze.StartTime == 0 {
unfreeze.StartTime = u.GetBlockTime()
}
cfg := u.GetAPI().GetConfig()
means, err := newMeans(cfg, payload.Means, u.GetHeight())
if err != nil {
return nil, err
}
unfreeze, err = means.setOpt(unfreeze, payload)
if err != nil {
return nil, err
}
return unfreeze, nil
}
// 创建解冻状态
func (u *Unfreeze) create(unfreeze *pty.Unfreeze) (*types.Receipt, error) {
k := []byte(unfreeze.UnfreezeID)
v := types.Encode(unfreeze)
err := u.GetStateDB().Set(k, v)
if err != nil {
return nil, err
}
receiptLog := getUnfreezeLog(nil, unfreeze, pty.TyLogCreateUnfreeze)
return &types.Receipt{Ty: types.ExecOk,
KV: []*types.KeyValue{{Key: k, Value: v}}, Logs: []*types.ReceiptLog{receiptLog}}, nil
}
func mergeReceipt(r1 *types.Receipt, r2 *types.Receipt) (*types.Receipt, error) {
r1.Logs = append(r1.Logs, r2.Logs...)
r1.KV = append(r1.KV, r2.KV...)
r1.Ty = types.ExecOk
return r1, nil
}
func getUnfreezeLog(prev, cur *pty.Unfreeze, ty int32) *types.ReceiptLog {
log := &types.ReceiptLog{}
log.Ty = ty
r := &pty.ReceiptUnfreeze{Prev: prev, Current: cur}
log.Log = types.Encode(r)
return log
}
// 提取解冻币
func (u *Unfreeze) withdraw(unfreeze *pty.Unfreeze) (int64, *types.Receipt, error) {
cfg := u.GetAPI().GetConfig()
means, err := newMeans(cfg, unfreeze.Means, u.GetHeight())
if err != nil {
return 0, nil, err
}
frozen, err := means.calcFrozen(unfreeze, u.GetBlockTime())
if err != nil {
return 0, nil, err
}
unfreezeOld := *unfreeze
unfreeze, amount := withdraw(unfreeze, frozen)
receiptLog := getUnfreezeLog(&unfreezeOld, unfreeze, pty.TyLogWithdrawUnfreeze)
k := []byte(unfreeze.UnfreezeID)
v := types.Encode(unfreeze)
err = u.GetStateDB().Set(k, v)
if err != nil {
return 0, nil, err
}
return amount, &types.Receipt{Ty: types.ExecOk, KV: []*types.KeyValue{{Key: k, Value: v}},
Logs: []*types.ReceiptLog{receiptLog}}, nil
}
// 中止定期解冻
func (u *Unfreeze) terminator(unfreeze *pty.Unfreeze) (int64, *types.Receipt, error) {
if unfreeze.Remaining <= 0 {
return 0, nil, pty.ErrUnfreezeEmptied
}
unfreezeOld := *unfreeze
var amount int64
cfg := u.GetAPI().GetConfig()
if cfg.IsDappFork(u.GetHeight(), pty.UnfreezeX, "ForkTerminatePart") {
if unfreeze.Terminated {
return 0, nil, pty.ErrTerminated
}
m, err := newMeans(cfg, unfreeze.Means, u.GetHeight())
if err != nil {
return 0, nil, err
}
frozen, err := m.calcFrozen(unfreeze, u.GetBlockTime())
if err != nil {
return 0, nil, err
}
amount = frozen
unfreeze.Remaining = unfreeze.Remaining - amount
unfreeze.Terminated = true
} else {
amount = unfreeze.Remaining
unfreeze.Remaining = 0
}
receiptLog := getUnfreezeLog(&unfreezeOld, unfreeze, pty.TyLogTerminateUnfreeze)
k := []byte(unfreeze.UnfreezeID)
v := types.Encode(unfreeze)
err := u.GetStateDB().Set(k, v)
if err != nil {
return 0, nil, err
}
return amount, &types.Receipt{Ty: types.ExecOk, KV: []*types.KeyValue{{Key: k, Value: v}},
Logs: []*types.ReceiptLog{receiptLog}}, nil
}
func loadUnfreeze(id string, db dbm.KV) (*pty.Unfreeze, error) {
value, err := db.Get([]byte(id))
if err != nil {
uflog.Error("unfreeze terminate get", "id", id, "err", err)
return nil, err
}
var unfreeze pty.Unfreeze
err = types.Decode(value, &unfreeze)
if err != nil {
uflog.Error("unfreeze terminate decode", "err", err)
return nil, err
}
return &unfreeze, nil
}