// 修改飞机所属者
// 可用于购买飞机
// Failure 0x11 / 0x12 / 0x16
// Success 0x01
public static byte[] ChangeOwner(BigInteger tokenId, byte[] fromOwner, byte[] toOwner)
{
byte[] aircraftInfo = Storage.Get(Storage.CurrentContext, tokenId.AsByteArray());
if (aircraftInfo.Length == 0)
{
ChangeOwnerLog(tokenId, fromOwner, toOwner);
return(new byte[] { 0x11 });
}
Aircraft aircraft = (Aircraft)Helper.Deserialize(aircraftInfo);
if (aircraft.owner != fromOwner)
{
ChangeOwnerLog(tokenId, fromOwner, toOwner);
return(new byte[] { 0x12 });
}
BigInteger currentTimestamp = Blockchain.GetHeader(Blockchain.GetHeight()).Timestamp;
if (aircraft.auctionTime < currentTimestamp)
{
ChangeOwnerLog(tokenId, fromOwner, toOwner);
return(new byte[] { 0x16 });
}
// 执行所属转移
aircraft.owner = toOwner;
aircraft.auctionTime = 1525104000; // 较早的时间戳,清除售卖中状态
byte[] aircraftData = Helper.Serialize(aircraft);
Storage.Put(Storage.CurrentContext, tokenId.AsByteArray(), aircraftData);
ChangeOwnerLog(tokenId, fromOwner, toOwner);
return(new byte[] { 0x01 });
}
// 系统产出飞机,系统创建的飞机初始只属于系统账号
// 此处的prefix,不包含正式token中的最后三位标识数量
// Failure 0x14 / 0x15
// Success 0x01
private static byte[] InitAircraft(BigInteger tokenPrefix, byte[] ownerId)
{
BigInteger tokenId = _getNextTokenId(tokenPrefix);
if (tokenId == -1)
{
// 没有库存了，不能创建该颜色类型飞机
BirthedLog(-1, ownerId);
return(new byte[] { 0x14 });
}
byte[] tokenIdKey = tokenId.AsByteArray();
var existingAircraft = Storage.Get(Storage.CurrentContext, tokenIdKey);
if (existingAircraft.Length == 0)
{
Aircraft newAircraft = new Aircraft();
newAircraft.Id = tokenId;
newAircraft.owner = ownerId;
newAircraft.level = 1;
newAircraft.auctionTime = 1525104000; // 较早的时间戳
newAircraft.price = 100;
byte[] aircraftData = Helper.Serialize(newAircraft);
Storage.Put(Storage.CurrentContext, tokenIdKey, aircraftData);
BirthedLog(tokenId, ownerId);
return(new byte[] { 0x01 });
}
else
{
BirthedLog(-1, ownerId);
return(new byte[] { 0x15 });
}
}
public static byte[] InAuction(BigInteger tokenId, byte[] owner, int price)
{
byte[] aircraftInfo = Storage.Get(Storage.CurrentContext, tokenId.AsByteArray());
if (aircraftInfo.Length == 0)
{
InAuctionLog(tokenId, owner, price, -1);
return(new byte[] { 0x11 });
}
Aircraft aircraft = (Aircraft)Helper.Deserialize(aircraftInfo);
if (aircraft.owner != owner)
{
InAuctionLog(tokenId, owner, price, -1);
return(new byte[] { 0x12 });
}
aircraft.price = price;
// 当前时间增加三天，单位为秒
aircraft.auctionTime = Blockchain.GetHeader(Blockchain.GetHeight()).Timestamp + 3 * 24 * 60 * 60;
byte[] aircraftData = Helper.Serialize(aircraft);
Storage.Put(Storage.CurrentContext, tokenId.AsByteArray(), aircraftData);
InAuctionLog(tokenId, owner, price, aircraft.auctionTime);
return(new byte[] { 0x01 });
}
public static byte[] create(byte[] invoker, byte[][] owners, byte[] theOperator, byte[] nonce)
{
BasicMethods.assert(Runtime.CheckWitness(invoker), "CheckWitness failed");
BasicMethods.assert(BasicMethods._isLegalAddresses(owners), "owners addresses are not byte20");
BasicMethods.assert(BasicMethods._isLegalAddress(theOperator), "the operator is not byte20");
//TODO: no need to check the nonce byte[] length
_whenNotPaused();
BasicMethods.assert(BasicMethods._isLegalAddress(theOperator), "New operator is address zero");
byte[] SelfContractHash = ExecutionEngine.ExecutingScriptHash;
byte[] concatRes = SelfContractHash.Concat(invoker).Concat(nonce);
byte[] walletId = SmartContract.Sha256(concatRes);
BasicMethods.assert(getWallet(walletId).theOperator == null, "Occupied wallet id");
Wallet w = new Wallet();
BasicMethods.assert(BasicMethods._isLegalAddresses(owners), "owners contains illegal address");
w.owners = owners;
w.theOperator = theOperator;
BigInteger walletNum = Storage.Get(Storage.CurrentContext, WalletNum).AsBigInteger();
Storage.Put(Storage.CurrentContext, WalletNum, (walletNum + 1).AsByteArray());
Storage.Put(Storage.CurrentContext, WalletsPrefix.Concat(walletId), Helper.Serialize(w));
CreateWallet(walletId, owners, theOperator);
return(walletId);
}
public static bool setRWProperties(BigInteger tokenID, string rwProperties)
{
if (!isOpen() && !Runtime.CheckWitness(superAdmin))
{
return(false);
}
StorageMap tokenMap = Storage.CurrentContext.CreateMap("token");
var data = tokenMap.Get(tokenID.AsByteArray());
if (data.Length > 0)
{
Token token = Helper.Deserialize(data) as Token;
if (!Runtime.CheckWitness(token.owner) && !Runtime.CheckWitness(superAdmin))
{
return(false);
}
token.rwProperties = rwProperties;
tokenMap.Put(token.token_id.AsByteArray(), Helper.Serialize(token));
onNFTModify(tokenID, "rwProperties", rwProperties);
return(true);
}
return(false);
}
/**
* 游戏币交换
*/
public static bool transferABC(byte[] from, byte[] to, BigInteger tokenId, BigInteger pabc, BigInteger value)
{
bool bol = false;
if (from.Length == 20 && to.Length == 20 && pabc > 0 && value > 0)
{
UserInfo fromUser = getUserInfo(from);
UserInfo toUser = getUserInfo(to);
if (fromUser.balance >= pabc && toUser.gold >= value)
{
fromUser.balance -= pabc;
fromUser.gold += value;
toUser.balance += pabc;
toUser.gold -= value;
byte[] keyfrom = new byte[] { 0x11 }.Concat(from);
byte[] keyto = new byte[] { 0x11 }.Concat(to);
Storage.Put(Storage.CurrentContext, keyfrom, Helper.Serialize(fromUser));
Storage.Put(Storage.CurrentContext, keyto, Helper.Serialize(toUser));
bol = true;
}
if (bol == true)
{
TransferABCed(1, from, to, tokenId, pabc, value);
}
else
{
TransferABCed(0, from, to, tokenId, pabc, value);
}
}
return(bol);
}
public static bool initToken(byte[] addr)
{
if (addr.Length != 20)
{
throw new InvalidOperationException("The parameter addr SHOULD be 20-byte addresses.");
}
//check SAR
if (!checkState(SAR_STATE))
{
throw new InvalidOperationException("The sar state MUST be pause.");
}
var key = getSARKey(addr);
byte[] sar = Storage.Get(Storage.CurrentContext, key);
if (sar.Length == 0)
{
throw new InvalidOperationException("The sar must not be null.");
}
SARInfo info = (SARInfo)Helper.Deserialize(sar);
Storage.Put(Storage.CurrentContext, key, Helper.Serialize(info));
var txid = ((Transaction)ExecutionEngine.ScriptContainer).Hash;
Operated(info.name.AsByteArray(), addr, info.txid, txid, (int)ConfigTranType.TRANSACTION_TYPE_INIT, 0);
Nep55Operated(info.name.AsByteArray(), addr, info.txid, info.anchor.AsByteArray(), info.symbol.AsByteArray(), info.decimals);
return(true);
}
public static BigInteger GenerateAlien(string alienName, byte[] owner)
{
if (owner.Length != 20 && owner.Length != 33)
{
throw new InvalidOperationException("The parameter owner should be a 20-byte address or a 33-byte public key");
}
// Check if the owner is the same as one who invoked contract
if (!Runtime.CheckWitness(owner))
{
return(false);
}
uint xna = FindXna(RandomNumber());
Alien someAlien = new Alien {
Xna = xna,
AlienName = alienName,
Id = updateCounter(),
Owner = owner
};
// add the object to storage
StorageMap alienMap = Storage.CurrentContext.CreateMap(nameof(alienMap));
alienMap.Put(someAlien.Id.ToByteArray(), Helper.Serialize(someAlien));
OnAlienGenerated(someAlien.Id);
// save the id to the specified account
Storage.Put(owner, someAlien.Id);
return(someAlien.Id);
}
public static void SaveGame(Game game)
{
var key = KeysFactory.GameId(game.Id);
var serialized = Helper.Serialize(game);
Storage.Put(Storage.CurrentContext, key, serialized);
}
public static bool transferFrom(byte[] addrTo, BigInteger tokenID)
{
if (addrTo.Length != 20)
{
return(false);
}
StorageMap tokenMap = Storage.CurrentContext.CreateMap("token");
var data = tokenMap.Get(tokenID.AsByteArray());
if (data.Length > 0)
{
Token token = Helper.Deserialize(data) as Token;
if (!Runtime.CheckWitness(token.approved) && !Runtime.CheckWitness(superAdmin))
{
return(false);
}
var addrFrom = token.owner;
token.owner = addrTo;
tokenMap.Put(tokenID.AsByteArray(), Helper.Serialize(token));
addrNFTlistRemove(addrFrom, tokenID);
addrNFTlistAdd(addrTo, tokenID);
onTransfer(addrFrom, addrTo, 1);
onNFTTransfer(addrFrom, addrTo, tokenID);
return(true);
}
return(false);
}
public static bool IssueBond(string bondName, uint parValue, uint purchaseEndTime, uint interval, uint round, uint couponRate, ulong totalCap, byte[] Account)
{
if (!Runtime.CheckWitness(admin))
{
return(false);
}
if (purchaseEndTime <= Runtime.Time)
{
return(false);
}
if (totalCap < minIssueCap || round < minRound || couponRate <= 0 || interval < minInterval)
{
return(false);
}
if (!validateAddress(Account))
{
return(false);
}
BondItem bond = new BondItem();
bond.ParValue = parValue;
bond.purchaseEndTime = purchaseEndTime;
bond.CouponRate = couponRate;
bond.Interval = interval;
bond.TotalCap = totalCap;
bond.remainCap = totalCap;
bond.Round = round;
bond.Maturity = purchaseEndTime + round * interval;
byte[] b = Helper.Serialize(bond);
Storage.Put(Storage.CurrentContext, bondPrefix.Concat(bondName.AsByteArray()), b);
return(true);
}
// 可以动态发行一个新的资产
private static bool Deploy(BigInteger anftid, BigInteger atype, BigInteger atotal_amount, BigInteger aprice)
{
if (!Runtime.CheckWitness(Owner))
{
return(false);
}
StorageMap nftinfo = Storage.CurrentContext.CreateMap(nameof(nftinfo));
byte[] ni = nftinfo.Get(anftid.AsByteArray());
if (ni != null && ni.Length != 0)
{
return(false);
}
NftInfo info = new NftInfo
{
nftid = anftid,
type = atype,
total_amount = atotal_amount,
price = aprice,
total_supply = 0,
canbuy = true
};
nftinfo.Put(anftid.AsByteArray(), Helper.Serialize(info));
return(true);
}
public static object addPauser(byte[] invoker, byte[] account)
{
BasicMethods.assert(Runtime.CheckWitness(invoker), "Checkwitness failed");
// make sure the invoker is one effective pauser
Map <byte[], bool> pausers = new Map <byte[], bool>();
byte[] pauserBs = Storage.Get(Storage.CurrentContext, PauserKey);
if (pauserBs.Length > 0)
{
pausers = Helper.Deserialize(pauserBs) as Map <byte[], bool>;
}
byte[] admin = BasicMethods.getAdmin();
if (!invoker.Equals(admin))
{
BasicMethods.assert(pausers.HasKey(invoker), "invoker is not one pauser");
BasicMethods.assert(pausers[invoker], "invoker is an effective pauser");
}
// update the pausers map
pausers[account] = true;
Storage.Put(Storage.CurrentContext, PauserKey, Helper.Serialize(pausers));
PauserAdded(account);
return(true);
}
//销毁货币
public static bool destoryByBu(string name, byte[] from, BigInteger value)
{
if (from.Length != 20)
{
return(false);
}
if (value <= 0)
{
return(false);
}
var key = new byte[] { 0x12 }.Concat(name.AsByteArray());
byte[] token = Storage.Get(Storage.CurrentContext, key);
if (token.Length == 0)
{
return(false);
}
transfer(name, from, null, value);
Tokenized t = Helper.Deserialize(token) as Tokenized;
t.totalSupply = t.totalSupply - value;
Storage.Put(Storage.CurrentContext, key, Helper.Serialize(t));
return(true);
}
public static void Main()
{
// create struct instance
Person p = new Person();
p.Name = "bob";
p.Age = 20;
Runtime.Notify(p.Name);
Runtime.Notify(p.Age);
// serialize struct instance to byte[]
byte[] b = Helper.Serialize(p);
// deserialize byte[] to struct
Person p2 = (Person)Helper.Deserialize(b);
Runtime.Notify(p2.Name);
Runtime.Notify(p2.Age);
// create struct array
Person[] array = new Person[] { new Person {
Name = "tom", Age = 18
}, new Person {
Name = "jack", Age = 20
} };
}
public static bool destoryByBu(string name, byte[] from, BigInteger value)
{
if (from.Length != 20)
{
return(false);
}
if (value <= 0)
{
return(false);
}
var key = getNameKey(name.AsByteArray());
byte[] token = Storage.Get(Storage.CurrentContext, key);
if (token.Length == 0)
{
return(false);
}
if (!transfer(name, from, null, value))
{
throw new InvalidOperationException("Operation is error.");
}
Tokenized t = Helper.Deserialize(token) as Tokenized;
t.totalSupply = t.totalSupply - value;
Storage.Put(Storage.CurrentContext, key, Helper.Serialize(t));
return(true);
}
public static bool transfer(byte[] to, byte[] tokenid)
{
if (to.Length != 20)
{
throw new InvalidOperationException("The parameter owner should be a 20-byte address");
}
Alien token = Query(tokenid);
if (token == null)
{
throw new InvalidOperationException("Invalid Alien token id");
}
// Check if the owner of the alien is the same as the caller of the contract
if (!Runtime.CheckWitness(token.Owner))
{
return(false);
}
// Transfer
byte[] from = token.Owner;
Storage.Put(from, balanceOf(from) - 1);
Storage.Put(to, balanceOf(to) + 1);
token.Owner = to;
// Save the modified token
StorageMap alienMap = Storage.CurrentContext.CreateMap(nameof(alienMap));
alienMap.Put(tokenid, Helper.Serialize(token));
// Raise event
OnTransfer(token.Owner, to, tokenid);
return(true);
}
private static bool Announce(byte[] address)
{
if (Runtime.CheckWitness(Owner))
{
return(false);
}
Runtime.Notify("0");
//Auction auction = (Auction)Storage.Get(Storage.CurrentContext, "auction").Deserialize();
Auction auction = (Auction)Helper.Deserialize(Storage.Get("auction"));
Runtime.Notify("1");
uint now = Runtime.Time;
Runtime.Notify("11");
uint test = auction.endOfBidding;
Runtime.Notify("12");
if (now >= test)
{
return(false);
}
Runtime.Notify("2");
if (!auction.AnnounceBidder(address))
{
return(false);
}
Runtime.Notify("3");
Transferred(null, address, 1000);
Runtime.Notify("4");
//Storage.Put(Storage.CurrentContext, "auction", auction.Serialize());
Storage.Put("auction", Helper.Serialize(auction));
Runtime.Notify("5");
Storage.Put("totalSupply", BytesToBigInteger(Storage.Get("totalSupply")) + 1000);
return(true);
}
public static bool mintToken(byte[] owner, string properties, string URI, string rwProperties)
{
if (!isOpen() && !Runtime.CheckWitness(superAdmin))
{
return(false);
}
if (!Runtime.CheckWitness(owner))
{
return(false);
}
StorageMap sysStateMap = Storage.CurrentContext.CreateMap("sysState");
StorageMap tokenMap = Storage.CurrentContext.CreateMap("token");
BigInteger totalSupply = sysStateMap.Get("totalSupply").AsBigInteger();
Token newToken = new Token();
newToken.token_id = totalSupply + 1;
newToken.owner = owner;
newToken.approved = new byte[0];
newToken.properties = properties;
newToken.uri = URI;
newToken.rwProperties = rwProperties;
sysStateMap.Put("totalSupply", newToken.token_id);
tokenMap.Put(newToken.token_id.AsByteArray(), Helper.Serialize(newToken));
addrNFTlistAdd(owner, newToken.token_id);
onMint(owner, 1);
onNFTMint(owner, newToken.token_id, newToken);
return(true);
}
/// <summary>
/// Store auction transaction records
/// </summary>
public static void _putAuctionRecord(byte[] tokenId, AuctionRecord info)
{
var key = "auction".AsByteArray().Concat(tokenId);
byte[] bytes = Helper.Serialize(info);
Storage.Put(Storage.CurrentContext, key, bytes);
}
public static object TestMap()
{
StorageContext context = Storage.CurrentContext;
Map <string, int> m = new Map <string, int>();
int value = 100;
//m["hello"] = "world";
m["key"] = value;
byte[] b = Helper.Serialize(m);
Storage.Put(context, "tx", b);
byte[] v = Storage.Get(context, "tx");
Map <string, int> b2 = (Map <string, int>)Helper.Deserialize(v);
//&& b2["hello"] == "world"
if (b2 != null && (int)b2["key"] == value)
{
Storage.Put(context, "result", "true");
return(b);
}
Storage.Put(context, "result", "false");
return(false);
}
public static void SaveNftInfo(NFTInfo nftInfo)
{
var key = NftInfoKey(nftInfo.TokenId);
byte[] nftInfoBytes = Helper.Serialize(nftInfo);
Storage.Put(Context(), key, nftInfoBytes);
}
public static bool ConfirmShipment(byte[] txid)
{
var info = GetSale(txid);
if (info.State != SaleState.AwaitingShipment)
{
Error("sale state incorrect", new object[] { info.State });
return(false);
}
if (info.Buyer == null)
{
Error("buyer not specified");
return(false);
}
if (!Runtime.CheckWitness(info.Seller))
{
Error("must be seller to confirm shipment", new object[] { info.Seller });
return(false);
}
info.State = SaleState.ShipmentConfirmed;
StorageMap saleInfoMap = Storage.CurrentContext.CreateMap(SalesMapName);
saleInfoMap.Put(info.Id, Helper.Serialize(info));
SaleStateUpdated(info.Id, null, info.State);
return(true);
}
private static void setTxInfo(byte[] from, byte[] to, BigInteger value)
{
TransferInfo info = new TransferInfo();
info.from = from;
info.to = to;
info.value = value;
////用一个老式实现法
//
////优化的拼包方法
//
//var data = info.from;
//var lendata = ((BigInteger)data.Length).AsByteArray().Concat(doublezero).Range(0, 2);
////lendata是数据长度得bytearray，因为bigint长度不固定，统一加两个零，然后只取前面两个字节
////为什么要两个字节，因为bigint是含有符号位得，统一加个零安全，要不然长度129取一个字节就是负数了
//var txinfo = lendata.Concat(data);
//
//data = info.to;
//lendata = ((BigInteger)data.Length).AsByteArray().Concat(doublezero).Range(0, 2);
//txinfo = txinfo.Concat(lendata).Concat(data);
//
//data = value.AsByteArray();
//lendata = ((BigInteger)data.Length).AsByteArray().Concat(doublezero).Range(0, 2);
//txinfo = txinfo.Concat(lendata).Concat(data);
//新式实现方法只要一行
byte[] txinfo = Helper.Serialize(info);
var txid = (ExecutionEngine.ScriptContainer as Transaction).Hash;
var keytxid = new byte[] { 0x12 }.Concat(txid);
Storage.Put(Storage.CurrentContext, keytxid, txinfo);
}
//增发货币
public static bool increaseByBu(string name, byte[] to, BigInteger value)
{
if (to.Length != 20)
{
return(false);
}
if (value <= 0)
{
return(false);
}
var key = getNameKey(name.AsByteArray());
byte[] token = Storage.Get(Storage.CurrentContext, key);
if (token.Length == 0)
{
return(false);
}
transfer(name, null, to, value);
Tokenized t = Helper.Deserialize(token) as Tokenized;
t.totalSupply = t.totalSupply + value;
Storage.Put(Storage.CurrentContext, key, Helper.Serialize(t));
return(true);
}
/**
* 存储拍卖成交记录
*/
private static void _putAuctionRecord(byte[] dressId, AuctionRecord info)
{
byte[] txInfo = Helper.Serialize(info);
var key = "buy".AsByteArray().Concat(dressId);
Storage.Put(Storage.CurrentContext, key, txInfo);
}
public static bool SetAssetInfo(byte[] assetid, AssetInfo assetInfo)
{
StorageMap assentInfoMap = Storage.CurrentContext.CreateMap("assentInfoMap");
byte[] assetInfoBytes = Helper.Serialize(assetInfo);
assentInfoMap.Put(assetid, assetInfoBytes);
return(true);
}
/**
* 使用txid充值
*/
public static bool rechargeToken(byte[] owner, byte[] txid)
{
if (owner.Length != 20)
{
Runtime.Log("Owner error.");
return(false);
}
//2018/6/5 cwt 修补漏洞
byte[] keytxid = new byte[] { 0x11 }.Concat(txid);
byte[] keytowner = new byte[] { 0x11 }.Concat(owner);
byte[] txinfo = Storage.Get(Storage.CurrentContext, keytxid);
if (txinfo.Length > 0)
{
// 已经处理过了
return(false);
}
// 查询交易记录
object[] args = new object[1] {
txid
};
byte[] sgasHash = Storage.Get(Storage.CurrentContext, "sgas");
deleDyncall dyncall = (deleDyncall)sgasHash.ToDelegate();
object[] res = (object[])dyncall("getTxInfo", args);
if (res.Length > 0)
{
byte[] from = (byte[])res[0];
byte[] to = (byte[])res[1];
BigInteger value = (BigInteger)res[2];
if (from == owner)
{
if (to == ExecutionEngine.ExecutingScriptHash)
{
// 标记为处理
Storage.Put(Storage.CurrentContext, keytxid, value);
BigInteger nMoney = 0;
UserInfo userInfo = getUserInfo(owner);
nMoney = userInfo.balance;
nMoney += value;
_addTotal(value);
userInfo.balance = nMoney;
// 记账
Storage.Put(Storage.CurrentContext, keytowner, Helper.Serialize(userInfo));
return(true);
}
}
}
return(false);
}
public static bool transfer(byte[] from, byte[] to, BigInteger value)
{
if (value <= 0)
{
return(false);
}
if (from == to)
{
return(true);
}
//获得当前块的高度
var height = Blockchain.GetHeight();
//为了保护每个有交易的区块高度都有系统费的值 多了1.x个gas
var curMoney = getCurMoney(height);
CoinPoolInfo coinPoolInfo = getCoinPoolInfo();
if (curMoney == 0)
{
curMoney = getCurMoney(coinPoolInfo.lastblock);
var bytes_CurHeight = ((BigInteger)height).AsByteArray().Concat(quadZero).Range(0, 4);
var key_CurHeight = new byte[] { 0x12 }.Concat(bytes_CurHeight);
Storage.Put(Storage.CurrentContext, key_CurHeight, curMoney);
//这个地方可以不更新coinpoolinfo的值 不更新没有影响
updateCoinPoolInfo(coinPoolInfo, height);
}
//付款方
if (from.Length > 0)
{
var keyFrom = new byte[] { 0x11 }.Concat(from);
Info fromInfo = getInfo(from);
var from_value = fromInfo.balance;
if (from_value < value)
{
return(false);
}
fromInfo = updateCanClaim(height, fromInfo, from_value, value);
fromInfo.balance = from_value - value;
Storage.Put(Storage.CurrentContext, keyFrom, Helper.Serialize(fromInfo));
}
//收款方
if (to.Length > 0)
{
var keyTo = new byte[] { 0x11 }.Concat(to);
Info toInfo = getInfo(to);
var to_value = toInfo.balance;
toInfo = updateCanClaim(height, toInfo, to_value, value);
toInfo.balance = to_value + value;
Storage.Put(Storage.CurrentContext, keyTo, Helper.Serialize(toInfo));
}
//notify
Transferred(from, to, value);
return(true);
}
/*向债仓锁定数字资产*/
public static bool Lock(byte[] addr, BigInteger value)
{
if (addr.Length != 20) return false;
if (value == 0) return false;
byte[] key = addr.Concat(ConvertN(0));
byte[] cdp = Storage.Get(Storage.CurrentContext, key);
if (cdp.Length == 0) return false;
byte[] to = Storage.Get(Storage.CurrentContext, STORAGE_ACCOUNT);
if (to.Length == 0) return false;
object[] arg = new object[3];
arg[0] = addr;
arg[1] = to;
arg[2] = value;
if (!(bool)SDTContract("transfer", arg)) return false;
var txid = ((Transaction)ExecutionEngine.ScriptContainer).Hash;
//object[] obj = new object[1];
//obj[0] = txid;
//TransferInfo transferInfo = (TransferInfo)SDTContract("getTXInfo", obj);
/*校验交易信息*/
//if (transferInfo.from != addr || transferInfo.to != to || value != transferInfo.value) return false;
byte[] used = Storage.Get(Storage.CurrentContext, txid);
/*判断txid是否已被使用*/
if (used.Length != 0) return false;
CDPTransferInfo cdpInfo = (CDPTransferInfo)Helper.Deserialize(cdp);
cdpInfo.locked = cdpInfo.locked + value;
BigInteger currLock = cdpInfo.locked;
Storage.Put(Storage.CurrentContext, key, Helper.Serialize(cdpInfo));
//记录交易详细数据
CDPTransferDetail detail = new CDPTransferDetail();
detail.from = addr;
detail.cdpTxid = cdpInfo.txid;
detail.type = (int)ConfigTranType.TRANSACTION_TYPE_LOCK;
detail.operated = value;
detail.hasLocked = currLock;
detail.hasDrawed = cdpInfo.hasDrawed;
detail.txid = txid;
Storage.Put(Storage.CurrentContext, txid, Helper.Serialize(detail));
/*记录txid 已被使用*/
Storage.Put(Storage.CurrentContext, txid, addr);
return true;
}