public static bool init(byte[] _payRegistryHash, byte[] _celerWalletHash)
{
BasicMethods.assert(BasicMethods._isLegalAddress(_payRegistryHash), "Pay registry contract hash illegal");
BasicMethods.assert(BasicMethods._isLegalAddress(_celerWalletHash), "celer wallet contract hash illegal");
LedgerStruct.Ledger ledger = new LedgerStruct.Ledger();
ledger.payRegistry = _payRegistryHash;
ledger.celerWallet = _celerWalletHash;
setLedger(ledger);
LedgerBalanceLimit.enableBalanceLimitsInner();
return(true);
}
public static byte[] migrateChannelToInner(byte[] sender, LedgerStruct.Ledger _self, byte[][] pubKeys, byte[] _migrationRequest)
{
BasicMethods.assert(BasicMethods._isLegalAddress(sender), "sender illegal");
PbChain.ChannelMigrationRequest migrationRequest =
(PbChain.ChannelMigrationRequest)Neo.SmartContract.Framework.Helper.Deserialize(_migrationRequest);
PbEntity.ChannelMigrationInfo migrationInfo =
(PbEntity.ChannelMigrationInfo)Neo.SmartContract.Framework.Helper.Deserialize(migrationRequest.channelMigrationInfo);
byte[] channelId = migrationInfo.channelId;
BasicMethods.assert(BasicMethods._isByte32(channelId), "channelId illegal");
LedgerStruct.Channel c = LedgerStruct.getChannelMap(channelId);
byte[] toLedgerAddr = migrationInfo.toLedgerAddress;
LedgerStruct.ChannelStatus channelStatus = LedgerStruct.getStandardChannelStatus();
BasicMethods.assert(
c.status == channelStatus.Operable ||
c.status == channelStatus.Settling, "status illegal"
);
byte[] h = Hash256(migrationRequest.channelMigrationInfo);
// use Channel Library instead
BasicMethods.assert(LedgerChannel._checkCoSignatures(c, h, pubKeys, migrationRequest.sigs), "Check co-sigs failed");
BasicMethods.assert(migrationInfo.fromLedgerAddress.Equals(ExecutionEngine.ExecutingScriptHash), "From ledger address is not this");
BasicMethods.assert(toLedgerAddr.Equals(sender), "To ledger address is not msg.sender");
BasicMethods.assert(Blockchain.GetHeight() <= migrationInfo.migrationDeadline, "Passed migration deadline");
c = LedgerOperation._updateChannelStatus(c, channelStatus.Migrated);
c.migratedTo = toLedgerAddr;
LedgerStruct.setChannelMap(channelId, c);
MigrateChannelToEvent(channelId, toLedgerAddr);
byte[] celerWallet = _self.celerWallet;
NEP5Contract dyncall = (NEP5Contract)celerWallet.ToDelegate();
Object[] args = new object[] { channelId, toLedgerAddr };
dyncall("transferOperatorship", args);
return(channelId);
}
public static bool migrateChannelFromInner(LedgerStruct.Ledger _self, byte[] _fromLedgerAddr, byte[] _migrationRequest, byte[][] pubKeys)
{
BasicMethods.assert(BasicMethods._isLegalAddress(_fromLedgerAddr), "_fromLedgerAddr illegal");
// TODO: latest version of openzeppelin Address.sol provide this api toPayable()
byte[] fromLedgerAddrPayable = _fromLedgerAddr;
NEP5Contract dyncall = (NEP5Contract)fromLedgerAddrPayable.ToDelegate();
Object[] args = new object[] { _migrationRequest, pubKeys };
byte[] channelId = (byte[])dyncall("migrateChannelTo", args);
LedgerStruct.Channel c = LedgerStruct.getChannelMap(channelId);
LedgerStruct.ChannelStatus channelStatus = LedgerStruct.getStandardChannelStatus();
BasicMethods.assert(c.status == channelStatus.Uninitialized, "Immigrated channel already exists");
byte[] celerWallet = _self.celerWallet;
args = new object[] { channelId };
dyncall = (NEP5Contract)celerWallet.ToDelegate();
byte[] oper = (byte[])dyncall("getOperator", args);
BasicMethods.assert(
oper.Equals(ExecutionEngine.ExecutingScriptHash),
"Operatorship not transferred"
);
c = LedgerOperation._updateChannelStatus(c, channelStatus.Operable);
// Do not migrate WithdrawIntent, in other words, migration will implicitly veto
// pending WithdrawIntent if any.
c = LedgerChannel._importChannelMigrationArgs(c, fromLedgerAddrPayable, channelId);
c = LedgerChannel._importPeersMigrationInfo(c, fromLedgerAddrPayable, channelId);
LedgerStruct.setChannelMap(channelId, c);
MigrateChannelFromEvent(channelId, _fromLedgerAddr);
return(true);
}
private static void setLedger(LedgerStruct.Ledger ledger)
{
Storage.Put(Storage.CurrentContext, ledgerHashKey, Neo.SmartContract.Framework.Helper.Serialize(ledger));
}
private static LedgerStruct.Ledger getLedger()
{
byte[] result = Storage.Get(Storage.CurrentContext, ledgerHashKey);
LedgerStruct.Ledger ledger = (LedgerStruct.Ledger)Neo.SmartContract.Framework.Helper.Deserialize(result);
return(ledger);
}
public static bool deposit(byte[] _sender, byte[] _channelId, byte[] _receiver, BigInteger _transferFromAmount)
{
LedgerStruct.Ledger ledger = getLedger();
LedgerOperation.depositInner(_sender, ledger, _channelId, _receiver, _transferFromAmount, LedgerBalanceLimit.getBalanceLimitsEnabledInner());
return(true);
}
public static bool openChannel(byte[] _openRequest, byte[][] pubKeys)
{
LedgerStruct.Ledger ledger = getLedger();
LedgerOperation.openChannelInner(ledger, pubKeys, _openRequest, LedgerBalanceLimit.getBalanceLimitsEnabledInner());
return(true);
}