forked from Qortal/qortal
Merge remote-tracking branch 'qortal/master'
# Conflicts: # pom.xml # src/main/java/org/qortal/api/resource/ListsResource.java # src/main/java/org/qortal/list/ResourceList.java # src/main/java/org/qortal/list/ResourceListManager.java # src/main/java/org/qortal/transaction/ChatTransaction.java
This commit is contained in:
CalDescent
commit
ef2ee20820
@ -17,10 +17,10 @@
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||||
<ROW Property="Manufacturer" Value="Qortal"/>
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||||
<ROW Property="MsiLogging" MultiBuildValue="DefaultBuild:vp"/>
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||||
<ROW Property="NTP_GOOD" Value="false"/>
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||||
<ROW Property="ProductCode" Value="1033:{4B61B59E-57CF-4088-892E-F0CF90F30771} 1049:{3FEC2386-884A-4688-8E4F-09A11F1E3DDD} 2052:{2D5F0C95-DDC6-45D7-858C-1D4AD2625578} 2057:{E07CCB96-A78E-4F79-9348-67E58B7C3949} " Type="16"/>
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||||
<ROW Property="ProductCode" Value="1033:{53BE07BD-455A-4669-81A4-CAFB7F119704} 1049:{06A9C816-524B-46B1-A3BF-0A2F2D1BFC32} 2052:{1159AD9A-A935-4320-A8FE-C3C614723B1C} 2057:{EF29AEE7-BA0F-48D0-9410-C363D8C851E0} " Type="16"/>
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||||
<ROW Property="ProductLanguage" Value="2057"/>
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||||
<ROW Property="ProductName" Value="Qortal"/>
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<ROW Property="ProductVersion" Value="2.0.0" Type="32"/>
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<ROW Property="ProductVersion" Value="2.1.0" Type="32"/>
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<ROW Property="RECONFIG_NTP" Value="true"/>
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<ROW Property="REMOVE_BLOCKCHAIN" Value="YES" Type="4"/>
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<ROW Property="REPAIR_BLOCKCHAIN" Value="YES" Type="4"/>
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@ -212,7 +212,7 @@
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<ROW Component="ADDITIONAL_LICENSE_INFO_71" ComponentId="{12A3ADBE-BB7A-496C-8869-410681E6232F}" Directory_="jdk.zipfs_Dir" Attributes="0" KeyPath="ADDITIONAL_LICENSE_INFO_71" Type="0"/>
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||||
<ROW Component="ADDITIONAL_LICENSE_INFO_8" ComponentId="{D53AD95E-CF96-4999-80FC-5812277A7456}" Directory_="java.naming_Dir" Attributes="0" KeyPath="ADDITIONAL_LICENSE_INFO_8" Type="0"/>
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||||
<ROW Component="ADDITIONAL_LICENSE_INFO_9" ComponentId="{6B7EA9B0-5D17-47A8-B78C-FACE86D15E01}" Directory_="java.net.http_Dir" Attributes="0" KeyPath="ADDITIONAL_LICENSE_INFO_9" Type="0"/>
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<ROW Component="AI_CustomARPName" ComponentId="{E8EAFE6B-CB9E-4D2A-8597-9FAA2D7D98D2}" Directory_="APPDIR" Attributes="260" KeyPath="DisplayName" Options="1"/>
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<ROW Component="AI_CustomARPName" ComponentId="{81B75917-FA8E-4B98-A29C-5F1E2883463B}" Directory_="APPDIR" Attributes="260" KeyPath="DisplayName" Options="1"/>
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<ROW Component="AI_ExePath" ComponentId="{3644948D-AE0B-41BB-9FAF-A79E70490A08}" Directory_="APPDIR" Attributes="260" KeyPath="AI_ExePath"/>
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<ROW Component="APPDIR" ComponentId="{680DFDDE-3FB4-47A5-8FF5-934F576C6F91}" Directory_="APPDIR" Attributes="0"/>
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<ROW Component="AccessBridgeCallbacks.h" ComponentId="{288055D1-1062-47A3-AA44-5601B4E38AED}" Directory_="bridge_Dir" Attributes="0" KeyPath="AccessBridgeCallbacks.h" Type="0"/>
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4
pom.xml
4
pom.xml
@ -2,8 +2,8 @@
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.qortal</groupId>
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<artifactId>qortal-data</artifactId>
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<version>2.0.0</version>
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<artifactId>qortal</artifactId>
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<version>2.1.0</version>
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<packaging>jar</packaging>
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<properties>
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<skipTests>true</skipTests>
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@ -195,7 +195,8 @@ public class CrossChainResource {
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if (minimumTimestamp != null) {
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minimumFinalHeight = repository.getBlockRepository().getHeightFromTimestamp(minimumTimestamp);
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if (minimumFinalHeight == 0) {
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// If not found in the block repository it will return either 0 or 1
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if (minimumFinalHeight == 0 || minimumFinalHeight == 1) {
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// Try the archive
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minimumFinalHeight = repository.getBlockArchiveRepository().getHeightFromTimestamp(minimumTimestamp);
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}
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@ -283,6 +284,7 @@ public class CrossChainResource {
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int maximumCount = maxtrades != null ? maxtrades : 10;
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long minimumPeriod = 4 * 60 * 60 * 1000L; // ms
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Boolean isFinished = Boolean.TRUE;
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boolean useInversePrice = (inverse != null && inverse == true);
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try (final Repository repository = RepositoryManager.getRepository()) {
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Map<ByteArray, Supplier<ACCT>> acctsByCodeHash = SupportedBlockchain.getFilteredAcctMap(foreignBlockchain);
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@ -304,7 +306,7 @@ public class CrossChainResource {
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}
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}
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return inverse ? Amounts.scaledDivide(totalForeign, totalQort) : Amounts.scaledDivide(totalQort, totalForeign);
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return useInversePrice ? Amounts.scaledDivide(totalForeign, totalQort) : Amounts.scaledDivide(totalQort, totalForeign);
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} catch (DataException e) {
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
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}
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@ -31,6 +31,7 @@ import org.qortal.api.Security;
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import org.qortal.api.model.crosschain.TradeBotCreateRequest;
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import org.qortal.api.model.crosschain.TradeBotRespondRequest;
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import org.qortal.asset.Asset;
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import org.qortal.controller.Controller;
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import org.qortal.controller.tradebot.AcctTradeBot;
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import org.qortal.controller.tradebot.TradeBot;
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import org.qortal.crosschain.ForeignBlockchain;
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@ -139,6 +140,9 @@ public class CrossChainTradeBotResource {
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if (tradeBotCreateRequest.qortAmount <= 0 || tradeBotCreateRequest.fundingQortAmount <= 0)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ORDER_SIZE_TOO_SMALL);
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if (!Controller.getInstance().isUpToDate())
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
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try (final Repository repository = RepositoryManager.getRepository()) {
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// Do some simple checking first
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Account creator = new PublicKeyAccount(repository, tradeBotCreateRequest.creatorPublicKey);
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@ -197,6 +201,9 @@ public class CrossChainTradeBotResource {
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if (tradeBotRespondRequest.receivingAddress == null || !Crypto.isValidAddress(tradeBotRespondRequest.receivingAddress))
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
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if (!Controller.getInstance().isUpToDate())
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BLOCKCHAIN_NEEDS_SYNC);
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// Extract data from cross-chain trading AT
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try (final Repository repository = RepositoryManager.getRepository()) {
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ATData atData = fetchAtDataWithChecking(repository, atAddress);
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@ -16,6 +16,7 @@ import org.qortal.account.PrivateKeyAccount;
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import org.qortal.block.Block;
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import org.qortal.block.Block.ValidationResult;
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import org.qortal.block.BlockChain;
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import org.qortal.data.account.AccountData;
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import org.qortal.data.account.MintingAccountData;
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import org.qortal.data.account.RewardShareData;
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import org.qortal.data.block.BlockData;
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@ -47,6 +48,11 @@ public class BlockMinter extends Thread {
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// Recovery
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public static final long INVALID_BLOCK_RECOVERY_TIMEOUT = 10 * 60 * 1000L; // ms
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// Min account level to submit blocks
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// This is an unvalidated version of Blockchain.minAccountLevelToMint
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// and exists only to reduce block candidates by default.
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private static int MIN_LEVEL_FOR_BLOCK_SUBMISSION = 3;
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// Constructors
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public BlockMinter() {
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@ -130,6 +136,16 @@ public class BlockMinter extends Thread {
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madi.remove();
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continue;
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}
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// Optional (non-validated) prevention of block submissions below a defined level
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AccountData accountData = repository.getAccountRepository().getAccount(mintingAccount.getAddress());
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if (accountData != null) {
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Integer level = accountData.getLevel();
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if (level != null && level < MIN_LEVEL_FOR_BLOCK_SUBMISSION) {
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madi.remove();
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continue;
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}
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}
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}
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List<Peer> peers = Network.getInstance().getHandshakedPeers();
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@ -38,7 +38,7 @@ public class BlockArchiver implements Runnable {
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return;
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}
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LOGGER.info("Starting block archiver...");
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LOGGER.info("Starting block archiver from height {}...", startHeight);
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while (!Controller.isStopping()) {
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repository.discardChanges();
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@ -201,7 +201,7 @@ public class DogecoinACCTv1TradeBot implements AcctTradeBot {
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TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Built AT %s. Waiting for deployment", atAddress));
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// Attempt to backup the trade bot data
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TradeBot.backupTradeBotData(repository);
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TradeBot.backupTradeBotData(repository, null);
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// Return to user for signing and broadcast as we don't have their Qortal private key
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try {
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@ -276,7 +276,8 @@ public class DogecoinACCTv1TradeBot implements AcctTradeBot {
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crossChainTradeData.expectedForeignAmount, xprv58, null, lockTimeA, receivingPublicKeyHash);
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// Attempt to backup the trade bot data
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TradeBot.backupTradeBotData(repository);
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// Include tradeBotData as an additional parameter, since it's not in the repository yet
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TradeBot.backupTradeBotData(repository, Arrays.asList(tradeBotData));
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// Check we have enough funds via xprv58 to fund P2SH to cover expectedForeignAmount
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long p2shFee;
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@ -0,0 +1,884 @@
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package org.qortal.controller.tradebot;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.bitcoinj.core.*;
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import org.bitcoinj.script.Script.ScriptType;
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import org.qortal.account.PrivateKeyAccount;
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import org.qortal.account.PublicKeyAccount;
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import org.qortal.api.model.crosschain.TradeBotCreateRequest;
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import org.qortal.asset.Asset;
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import org.qortal.crosschain.*;
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import org.qortal.crypto.Crypto;
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import org.qortal.data.at.ATData;
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import org.qortal.data.crosschain.CrossChainTradeData;
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import org.qortal.data.crosschain.TradeBotData;
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import org.qortal.data.transaction.BaseTransactionData;
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import org.qortal.data.transaction.DeployAtTransactionData;
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import org.qortal.data.transaction.MessageTransactionData;
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import org.qortal.group.Group;
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import org.qortal.repository.DataException;
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import org.qortal.repository.Repository;
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import org.qortal.transaction.DeployAtTransaction;
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import org.qortal.transaction.MessageTransaction;
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import org.qortal.transaction.Transaction.ValidationResult;
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import org.qortal.transform.TransformationException;
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import org.qortal.transform.transaction.DeployAtTransactionTransformer;
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import org.qortal.utils.Base58;
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import org.qortal.utils.NTP;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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import static java.util.Arrays.stream;
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import static java.util.stream.Collectors.toMap;
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/**
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* Performing cross-chain trading steps on behalf of user.
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* <p>
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* We deal with three different independent state-spaces here:
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* <ul>
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* <li>Qortal blockchain</li>
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* <li>Foreign blockchain</li>
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* <li>Trade-bot entries</li>
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* </ul>
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*/
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public class DogecoinACCTv2TradeBot implements AcctTradeBot {
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private static final Logger LOGGER = LogManager.getLogger(DogecoinACCTv2TradeBot.class);
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public enum State implements TradeBot.StateNameAndValueSupplier {
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BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
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BOB_WAITING_FOR_MESSAGE(15, true, true),
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BOB_WAITING_FOR_AT_REDEEM(25, true, true),
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||||
BOB_DONE(30, false, false),
|
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BOB_REFUNDED(35, false, false),
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||||
|
||||
ALICE_WAITING_FOR_AT_LOCK(85, true, true),
|
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ALICE_DONE(95, false, false),
|
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ALICE_REFUNDING_A(105, true, true),
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ALICE_REFUNDED(110, false, false);
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||||
private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
|
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|
||||
public final int value;
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||||
public final boolean requiresAtData;
|
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public final boolean requiresTradeData;
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State(int value, boolean requiresAtData, boolean requiresTradeData) {
|
||||
this.value = value;
|
||||
this.requiresAtData = requiresAtData;
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this.requiresTradeData = requiresTradeData;
|
||||
}
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||||
|
||||
public static State valueOf(int value) {
|
||||
return map.get(value);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getState() {
|
||||
return this.name();
|
||||
}
|
||||
|
||||
@Override
|
||||
public int getStateValue() {
|
||||
return this.value;
|
||||
}
|
||||
}
|
||||
|
||||
/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
|
||||
private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
|
||||
|
||||
private static DogecoinACCTv2TradeBot instance;
|
||||
|
||||
private final List<String> endStates = Arrays.asList(State.BOB_DONE, State.BOB_REFUNDED, State.ALICE_DONE, State.ALICE_REFUNDING_A, State.ALICE_REFUNDED).stream()
|
||||
.map(State::name)
|
||||
.collect(Collectors.toUnmodifiableList());
|
||||
|
||||
private DogecoinACCTv2TradeBot() {
|
||||
}
|
||||
|
||||
public static synchronized DogecoinACCTv2TradeBot getInstance() {
|
||||
if (instance == null)
|
||||
instance = new DogecoinACCTv2TradeBot();
|
||||
|
||||
return instance;
|
||||
}
|
||||
|
||||
@Override
|
||||
public List<String> getEndStates() {
|
||||
return this.endStates;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new trade-bot entry from the "Bob" viewpoint, i.e. OFFERing QORT in exchange for DOGE.
|
||||
* <p>
|
||||
* Generates:
|
||||
* <ul>
|
||||
* <li>new 'trade' private key</li>
|
||||
* </ul>
|
||||
* Derives:
|
||||
* <ul>
|
||||
* <li>'native' (as in Qortal) public key, public key hash, address (starting with Q)</li>
|
||||
* <li>'foreign' (as in Dogecoin) public key, public key hash</li>
|
||||
* </ul>
|
||||
* A Qortal AT is then constructed including the following as constants in the 'data segment':
|
||||
* <ul>
|
||||
* <li>'native'/Qortal 'trade' address - used as a MESSAGE contact</li>
|
||||
* <li>'foreign'/Dogecoin public key hash - used by Alice's P2SH scripts to allow redeem</li>
|
||||
* <li>QORT amount on offer by Bob</li>
|
||||
* <li>DOGE amount expected in return by Bob (from Alice)</li>
|
||||
* <li>trading timeout, in case things go wrong and everyone needs to refund</li>
|
||||
* </ul>
|
||||
* Returns a DEPLOY_AT transaction that needs to be signed and broadcast to the Qortal network.
|
||||
* <p>
|
||||
* Trade-bot will wait for Bob's AT to be deployed before taking next step.
|
||||
* <p>
|
||||
* @param repository
|
||||
* @param tradeBotCreateRequest
|
||||
* @return raw, unsigned DEPLOY_AT transaction
|
||||
* @throws DataException
|
||||
*/
|
||||
public byte[] createTrade(Repository repository, TradeBotCreateRequest tradeBotCreateRequest) throws DataException {
|
||||
byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
|
||||
|
||||
byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
|
||||
byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
|
||||
String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
|
||||
|
||||
byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
|
||||
byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
|
||||
|
||||
// Convert Dogecoin receiving address into public key hash (we only support P2PKH at this time)
|
||||
Address dogecoinReceivingAddress;
|
||||
try {
|
||||
dogecoinReceivingAddress = Address.fromString(Dogecoin.getInstance().getNetworkParameters(), tradeBotCreateRequest.receivingAddress);
|
||||
} catch (AddressFormatException e) {
|
||||
throw new DataException("Unsupported Dogecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
|
||||
}
|
||||
if (dogecoinReceivingAddress.getOutputScriptType() != ScriptType.P2PKH)
|
||||
throw new DataException("Unsupported Dogecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
|
||||
|
||||
byte[] dogecoinReceivingAccountInfo = dogecoinReceivingAddress.getHash();
|
||||
|
||||
PublicKeyAccount creator = new PublicKeyAccount(repository, tradeBotCreateRequest.creatorPublicKey);
|
||||
|
||||
// Deploy AT
|
||||
long timestamp = NTP.getTime();
|
||||
byte[] reference = creator.getLastReference();
|
||||
long fee = 0L;
|
||||
byte[] signature = null;
|
||||
BaseTransactionData baseTransactionData = new BaseTransactionData(timestamp, Group.NO_GROUP, reference, creator.getPublicKey(), fee, signature);
|
||||
|
||||
String name = "QORT/DOGE ACCT";
|
||||
String description = "QORT/DOGE cross-chain trade";
|
||||
String aTType = "ACCT";
|
||||
String tags = "ACCT QORT DOGE";
|
||||
byte[] creationBytes = DogecoinACCTv2.buildQortalAT(tradeNativeAddress, tradeForeignPublicKeyHash, tradeBotCreateRequest.qortAmount,
|
||||
tradeBotCreateRequest.foreignAmount, tradeBotCreateRequest.tradeTimeout);
|
||||
long amount = tradeBotCreateRequest.fundingQortAmount;
|
||||
|
||||
DeployAtTransactionData deployAtTransactionData = new DeployAtTransactionData(baseTransactionData, name, description, aTType, tags, creationBytes, amount, Asset.QORT);
|
||||
|
||||
DeployAtTransaction deployAtTransaction = new DeployAtTransaction(repository, deployAtTransactionData);
|
||||
fee = deployAtTransaction.calcRecommendedFee();
|
||||
deployAtTransactionData.setFee(fee);
|
||||
|
||||
DeployAtTransaction.ensureATAddress(deployAtTransactionData);
|
||||
String atAddress = deployAtTransactionData.getAtAddress();
|
||||
|
||||
TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, DogecoinACCTv2.NAME,
|
||||
State.BOB_WAITING_FOR_AT_CONFIRM.name(), State.BOB_WAITING_FOR_AT_CONFIRM.value,
|
||||
creator.getAddress(), atAddress, timestamp, tradeBotCreateRequest.qortAmount,
|
||||
tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
|
||||
null, null,
|
||||
SupportedBlockchain.DOGECOIN.name(),
|
||||
tradeForeignPublicKey, tradeForeignPublicKeyHash,
|
||||
tradeBotCreateRequest.foreignAmount, null, null, null, dogecoinReceivingAccountInfo);
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Built AT %s. Waiting for deployment", atAddress));
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
TradeBot.backupTradeBotData(repository, null);
|
||||
|
||||
// Return to user for signing and broadcast as we don't have their Qortal private key
|
||||
try {
|
||||
return DeployAtTransactionTransformer.toBytes(deployAtTransactionData);
|
||||
} catch (TransformationException e) {
|
||||
throw new DataException("Failed to transform DEPLOY_AT transaction?", e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a trade-bot entry from the 'Alice' viewpoint, i.e. matching DOGE to an existing offer.
|
||||
* <p>
|
||||
* Requires a chosen trade offer from Bob, passed by <tt>crossChainTradeData</tt>
|
||||
* and access to a Dogecoin wallet via <tt>xprv58</tt>.
|
||||
* <p>
|
||||
* The <tt>crossChainTradeData</tt> contains the current trade offer state
|
||||
* as extracted from the AT's data segment.
|
||||
* <p>
|
||||
* Access to a funded wallet is via a Dogecoin BIP32 hierarchical deterministic key,
|
||||
* passed via <tt>xprv58</tt>.
|
||||
* <b>This key will be stored in your node's database</b>
|
||||
* to allow trade-bot to create/fund the necessary P2SH transactions!
|
||||
* However, due to the nature of BIP32 keys, it is possible to give the trade-bot
|
||||
* only a subset of wallet access (see BIP32 for more details).
|
||||
* <p>
|
||||
* As an example, the xprv58 can be extract from a <i>legacy, password-less</i>
|
||||
* Electrum wallet by going to the console tab and entering:<br>
|
||||
* <tt>wallet.keystore.xprv</tt><br>
|
||||
* which should result in a base58 string starting with either 'xprv' (for Dogecoin main-net)
|
||||
* or 'tprv' for (Dogecoin test-net).
|
||||
* <p>
|
||||
* It is envisaged that the value in <tt>xprv58</tt> will actually come from a Qortal-UI-managed wallet.
|
||||
* <p>
|
||||
* If sufficient funds are available, <b>this method will actually fund the P2SH-A</b>
|
||||
* with the Dogecoin amount expected by 'Bob'.
|
||||
* <p>
|
||||
* If the Dogecoin transaction is successfully broadcast to the network then
|
||||
* we also send a MESSAGE to Bob's trade-bot to let them know.
|
||||
* <p>
|
||||
* The trade-bot entry is saved to the repository and the cross-chain trading process commences.
|
||||
* <p>
|
||||
* @param repository
|
||||
* @param crossChainTradeData chosen trade OFFER that Alice wants to match
|
||||
* @param xprv58 funded wallet xprv in base58
|
||||
* @return true if P2SH-A funding transaction successfully broadcast to Dogecoin network, false otherwise
|
||||
* @throws DataException
|
||||
*/
|
||||
public ResponseResult startResponse(Repository repository, ATData atData, ACCT acct, CrossChainTradeData crossChainTradeData, String xprv58, String receivingAddress) throws DataException {
|
||||
byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
|
||||
byte[] secretA = TradeBot.generateSecret();
|
||||
byte[] hashOfSecretA = Crypto.hash160(secretA);
|
||||
|
||||
byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
|
||||
byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
|
||||
String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
|
||||
|
||||
byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
|
||||
byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
|
||||
byte[] receivingPublicKeyHash = Base58.decode(receivingAddress); // Actually the whole address, not just PKH
|
||||
|
||||
// We need to generate lockTime-A: add tradeTimeout to now
|
||||
long now = NTP.getTime();
|
||||
int lockTimeA = crossChainTradeData.tradeTimeout * 60 + (int) (now / 1000L);
|
||||
|
||||
TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, DogecoinACCTv2.NAME,
|
||||
State.ALICE_WAITING_FOR_AT_LOCK.name(), State.ALICE_WAITING_FOR_AT_LOCK.value,
|
||||
receivingAddress, crossChainTradeData.qortalAtAddress, now, crossChainTradeData.qortAmount,
|
||||
tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
|
||||
secretA, hashOfSecretA,
|
||||
SupportedBlockchain.DOGECOIN.name(),
|
||||
tradeForeignPublicKey, tradeForeignPublicKeyHash,
|
||||
crossChainTradeData.expectedForeignAmount, xprv58, null, lockTimeA, receivingPublicKeyHash);
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
// Include tradeBotData as an additional parameter, since it's not in the repository yet
|
||||
TradeBot.backupTradeBotData(repository, Arrays.asList(tradeBotData));
|
||||
|
||||
// Check we have enough funds via xprv58 to fund P2SH to cover expectedForeignAmount
|
||||
long p2shFee;
|
||||
try {
|
||||
p2shFee = Dogecoin.getInstance().getP2shFee(now);
|
||||
} catch (ForeignBlockchainException e) {
|
||||
LOGGER.debug("Couldn't estimate Dogecoin fees?");
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
// Do not include fee for funding transaction as this is covered by buildSpend()
|
||||
long amountA = crossChainTradeData.expectedForeignAmount + p2shFee /*redeeming/refunding P2SH-A*/;
|
||||
|
||||
// P2SH-A to be funded
|
||||
byte[] redeemScriptBytes = BitcoinyHTLC.buildScript(tradeForeignPublicKeyHash, lockTimeA, crossChainTradeData.creatorForeignPKH, hashOfSecretA);
|
||||
String p2shAddress = Dogecoin.getInstance().deriveP2shAddress(redeemScriptBytes);
|
||||
|
||||
// Build transaction for funding P2SH-A
|
||||
Transaction p2shFundingTransaction = Dogecoin.getInstance().buildSpend(tradeBotData.getForeignKey(), p2shAddress, amountA);
|
||||
if (p2shFundingTransaction == null) {
|
||||
LOGGER.debug("Unable to build P2SH-A funding transaction - lack of funds?");
|
||||
return ResponseResult.BALANCE_ISSUE;
|
||||
}
|
||||
|
||||
try {
|
||||
Dogecoin.getInstance().broadcastTransaction(p2shFundingTransaction);
|
||||
} catch (ForeignBlockchainException e) {
|
||||
// We couldn't fund P2SH-A at this time
|
||||
LOGGER.debug("Couldn't broadcast P2SH-A funding transaction?");
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
|
||||
// Attempt to send MESSAGE to Bob's Qortal trade address
|
||||
byte[] messageData = DogecoinACCTv2.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
|
||||
String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction messageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, messageData, false, false);
|
||||
|
||||
messageTransaction.computeNonce();
|
||||
messageTransaction.sign(sender);
|
||||
|
||||
// reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = messageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to Bob's trade-bot %s: %s", messageRecipient, result.name()));
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Funding P2SH-A %s. Messaged Bob. Waiting for AT-lock", p2shAddress));
|
||||
|
||||
return ResponseResult.OK;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean canDelete(Repository repository, TradeBotData tradeBotData) throws DataException {
|
||||
State tradeBotState = State.valueOf(tradeBotData.getStateValue());
|
||||
if (tradeBotState == null)
|
||||
return true;
|
||||
|
||||
// If the AT doesn't exist then we might as well let the user tidy up
|
||||
if (!repository.getATRepository().exists(tradeBotData.getAtAddress()))
|
||||
return true;
|
||||
|
||||
switch (tradeBotState) {
|
||||
case BOB_WAITING_FOR_AT_CONFIRM:
|
||||
case ALICE_DONE:
|
||||
case BOB_DONE:
|
||||
case ALICE_REFUNDED:
|
||||
case BOB_REFUNDED:
|
||||
return true;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void progress(Repository repository, TradeBotData tradeBotData) throws DataException, ForeignBlockchainException {
|
||||
State tradeBotState = State.valueOf(tradeBotData.getStateValue());
|
||||
if (tradeBotState == null) {
|
||||
LOGGER.info(() -> String.format("Trade-bot entry for AT %s has invalid state?", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
ATData atData = null;
|
||||
CrossChainTradeData tradeData = null;
|
||||
|
||||
if (tradeBotState.requiresAtData) {
|
||||
// Attempt to fetch AT data
|
||||
atData = repository.getATRepository().fromATAddress(tradeBotData.getAtAddress());
|
||||
if (atData == null) {
|
||||
LOGGER.debug(() -> String.format("Unable to fetch trade AT %s from repository", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
if (tradeBotState.requiresTradeData) {
|
||||
tradeData = DogecoinACCTv2.getInstance().populateTradeData(repository, atData);
|
||||
if (tradeData == null) {
|
||||
LOGGER.warn(() -> String.format("Unable to fetch ACCT trade data for AT %s from repository", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
switch (tradeBotState) {
|
||||
case BOB_WAITING_FOR_AT_CONFIRM:
|
||||
handleBobWaitingForAtConfirm(repository, tradeBotData);
|
||||
break;
|
||||
|
||||
case BOB_WAITING_FOR_MESSAGE:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleBobWaitingForMessage(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_WAITING_FOR_AT_LOCK:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleAliceWaitingForAtLock(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case BOB_WAITING_FOR_AT_REDEEM:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleBobWaitingForAtRedeem(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_DONE:
|
||||
case BOB_DONE:
|
||||
break;
|
||||
|
||||
case ALICE_REFUNDING_A:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleAliceRefundingP2shA(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_REFUNDED:
|
||||
case BOB_REFUNDED:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Bob's AT to deploy.
|
||||
* <p>
|
||||
* If AT is deployed, then trade-bot's next step is to wait for MESSAGE from Alice.
|
||||
*/
|
||||
private void handleBobWaitingForAtConfirm(Repository repository, TradeBotData tradeBotData) throws DataException {
|
||||
if (!repository.getATRepository().exists(tradeBotData.getAtAddress())) {
|
||||
if (NTP.getTime() - tradeBotData.getTimestamp() <= MAX_AT_CONFIRMATION_PERIOD)
|
||||
return;
|
||||
|
||||
// We've waited ages for AT to be confirmed into a block but something has gone awry.
|
||||
// After this long we assume transaction loss so give up with trade-bot entry too.
|
||||
tradeBotData.setState(State.BOB_REFUNDED.name());
|
||||
tradeBotData.setStateValue(State.BOB_REFUNDED.value);
|
||||
tradeBotData.setTimestamp(NTP.getTime());
|
||||
// We delete trade-bot entry here instead of saving, hence not using updateTradeBotState()
|
||||
repository.getCrossChainRepository().delete(tradeBotData.getTradePrivateKey());
|
||||
repository.saveChanges();
|
||||
|
||||
LOGGER.info(() -> String.format("AT %s never confirmed. Giving up on trade", tradeBotData.getAtAddress()));
|
||||
TradeBot.notifyStateChange(tradeBotData);
|
||||
return;
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_WAITING_FOR_MESSAGE,
|
||||
() -> String.format("AT %s confirmed ready. Waiting for trade message", tradeBotData.getAtAddress()));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for MESSAGE from Alice's trade-bot, containing Alice's trade info.
|
||||
* <p>
|
||||
* It's possible Bob has cancelling his trade offer, receiving an automatic QORT refund,
|
||||
* in which case trade-bot is done with this specific trade and finalizes on refunded state.
|
||||
* <p>
|
||||
* Assuming trade is still on offer, trade-bot checks the contents of MESSAGE from Alice's trade-bot.
|
||||
* <p>
|
||||
* Details from Alice are used to derive P2SH-A address and this is checked for funding balance.
|
||||
* <p>
|
||||
* Assuming P2SH-A has at least expected Dogecoin balance,
|
||||
* Bob's trade-bot constructs a zero-fee, PoW MESSAGE to send to Bob's AT with more trade details.
|
||||
* <p>
|
||||
* On processing this MESSAGE, Bob's AT should switch into 'TRADE' mode and only trade with Alice.
|
||||
* <p>
|
||||
* Trade-bot's next step is to wait for Alice to redeem the AT, which will allow Bob to
|
||||
* extract secret-A needed to redeem Alice's P2SH.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleBobWaitingForMessage(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// If AT has finished then Bob likely cancelled his trade offer
|
||||
if (atData.getIsFinished()) {
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_REFUNDED,
|
||||
() -> String.format("AT %s cancelled - trading aborted", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
Dogecoin dogecoin = Dogecoin.getInstance();
|
||||
|
||||
String address = tradeBotData.getTradeNativeAddress();
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(null, address, null, null, null);
|
||||
|
||||
for (MessageTransactionData messageTransactionData : messageTransactionsData) {
|
||||
if (messageTransactionData.isText())
|
||||
continue;
|
||||
|
||||
// We're expecting: HASH160(secret-A), Alice's Dogecoin pubkeyhash and lockTime-A
|
||||
byte[] messageData = messageTransactionData.getData();
|
||||
DogecoinACCTv2.OfferMessageData offerMessageData = DogecoinACCTv2.extractOfferMessageData(messageData);
|
||||
if (offerMessageData == null)
|
||||
continue;
|
||||
|
||||
byte[] aliceForeignPublicKeyHash = offerMessageData.partnerDogecoinPKH;
|
||||
byte[] hashOfSecretA = offerMessageData.hashOfSecretA;
|
||||
int lockTimeA = (int) offerMessageData.lockTimeA;
|
||||
long messageTimestamp = messageTransactionData.getTimestamp();
|
||||
int refundTimeout = DogecoinACCTv2.calcRefundTimeout(messageTimestamp, lockTimeA);
|
||||
|
||||
// Determine P2SH-A address and confirm funded
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(aliceForeignPublicKeyHash, lockTimeA, tradeBotData.getTradeForeignPublicKeyHash(), hashOfSecretA);
|
||||
String p2shAddressA = dogecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Dogecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
final long minimumAmountA = tradeBotData.getForeignAmount() + p2shFee;
|
||||
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(dogecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// There might be another MESSAGE from someone else with an actually funded P2SH-A...
|
||||
continue;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// We've already redeemed this?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_DONE,
|
||||
() -> String.format("P2SH-A %s already spent? Assuming trade complete", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
// This P2SH-A is burnt, but there might be another MESSAGE from someone else with an actually funded P2SH-A...
|
||||
continue;
|
||||
|
||||
case FUNDED:
|
||||
// Fall-through out of switch...
|
||||
break;
|
||||
}
|
||||
|
||||
// Good to go - send MESSAGE to AT
|
||||
|
||||
String aliceNativeAddress = Crypto.toAddress(messageTransactionData.getCreatorPublicKey());
|
||||
|
||||
// Build outgoing message, padding each part to 32 bytes to make it easier for AT to consume
|
||||
byte[] outgoingMessageData = DogecoinACCTv2.buildTradeMessage(aliceNativeAddress, aliceForeignPublicKeyHash, hashOfSecretA, lockTimeA, refundTimeout);
|
||||
String messageRecipient = tradeBotData.getAtAddress();
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, outgoingMessageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction outgoingMessageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, outgoingMessageData, false, false);
|
||||
|
||||
outgoingMessageTransaction.computeNonce();
|
||||
outgoingMessageTransaction.sign(sender);
|
||||
|
||||
// reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = outgoingMessageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to AT %s: %s", messageRecipient, result.name()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_WAITING_FOR_AT_REDEEM,
|
||||
() -> String.format("Locked AT %s to %s. Waiting for AT redeem", tradeBotData.getAtAddress(), aliceNativeAddress));
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Bob's AT to switch to TRADE mode and lock trade to Alice only.
|
||||
* <p>
|
||||
* It's possible that Bob has cancelled his trade offer in the mean time, or that somehow
|
||||
* this process has taken so long that we've reached P2SH-A's locktime, or that someone else
|
||||
* has managed to trade with Bob. In any of these cases, trade-bot switches to begin the refunding process.
|
||||
* <p>
|
||||
* Assuming Bob's AT is locked to Alice, trade-bot checks AT's state data to make sure it is correct.
|
||||
* <p>
|
||||
* If all is well, trade-bot then redeems AT using Alice's secret-A, releasing Bob's QORT to Alice.
|
||||
* <p>
|
||||
* In revealing a valid secret-A, Bob can then redeem the DOGE funds from P2SH-A.
|
||||
* <p>
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleAliceWaitingForAtLock(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
if (aliceUnexpectedState(repository, tradeBotData, atData, crossChainTradeData))
|
||||
return;
|
||||
|
||||
Dogecoin dogecoin = Dogecoin.getInstance();
|
||||
int lockTimeA = tradeBotData.getLockTimeA();
|
||||
|
||||
// Refund P2SH-A if we've passed lockTime-A
|
||||
if (NTP.getTime() >= lockTimeA * 1000L) {
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(tradeBotData.getTradeForeignPublicKeyHash(), lockTimeA, crossChainTradeData.creatorForeignPKH, tradeBotData.getHashOfSecret());
|
||||
String p2shAddressA = dogecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Dogecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(dogecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
case FUNDED:
|
||||
break;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Already redeemed?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("P2SH-A %s already spent? Assuming trade completed", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDED,
|
||||
() -> String.format("P2SH-A %s already refunded. Trade aborted", p2shAddressA));
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> atData.getIsFinished()
|
||||
? String.format("AT %s cancelled. Refunding P2SH-A %s - aborting trade", tradeBotData.getAtAddress(), p2shAddressA)
|
||||
: String.format("LockTime-A reached, refunding P2SH-A %s - aborting trade", p2shAddressA));
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// We're waiting for AT to be in TRADE mode
|
||||
if (crossChainTradeData.mode != AcctMode.TRADING)
|
||||
return;
|
||||
|
||||
// AT is in TRADE mode and locked to us as checked by aliceUnexpectedState() above
|
||||
|
||||
// Find our MESSAGE to AT from previous state
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(tradeBotData.getTradeNativePublicKey(),
|
||||
crossChainTradeData.qortalCreatorTradeAddress, null, null, null);
|
||||
if (messageTransactionsData == null || messageTransactionsData.isEmpty()) {
|
||||
LOGGER.warn(() -> String.format("Unable to find our message to trade creator %s?", crossChainTradeData.qortalCreatorTradeAddress));
|
||||
return;
|
||||
}
|
||||
|
||||
long recipientMessageTimestamp = messageTransactionsData.get(0).getTimestamp();
|
||||
int refundTimeout = DogecoinACCTv2.calcRefundTimeout(recipientMessageTimestamp, lockTimeA);
|
||||
|
||||
// Our calculated refundTimeout should match AT's refundTimeout
|
||||
if (refundTimeout != crossChainTradeData.refundTimeout) {
|
||||
LOGGER.debug(() -> String.format("Trade AT refundTimeout '%d' doesn't match our refundTimeout '%d'", crossChainTradeData.refundTimeout, refundTimeout));
|
||||
// We'll eventually refund
|
||||
return;
|
||||
}
|
||||
|
||||
// We're good to redeem AT
|
||||
|
||||
// Send 'redeem' MESSAGE to AT using both secret
|
||||
byte[] secretA = tradeBotData.getSecret();
|
||||
String qortalReceivingAddress = Base58.encode(tradeBotData.getReceivingAccountInfo()); // Actually contains whole address, not just PKH
|
||||
byte[] messageData = DogecoinACCTv2.buildRedeemMessage(secretA, qortalReceivingAddress);
|
||||
String messageRecipient = tradeBotData.getAtAddress();
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction messageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, messageData, false, false);
|
||||
|
||||
messageTransaction.computeNonce();
|
||||
messageTransaction.sign(sender);
|
||||
|
||||
// Reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = messageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to AT %s: %s", messageRecipient, result.name()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("Redeeming AT %s. Funds should arrive at %s",
|
||||
tradeBotData.getAtAddress(), qortalReceivingAddress));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Alice to redeem Bob's AT, thus revealing secret-A which is required to spend the DOGE funds from P2SH-A.
|
||||
* <p>
|
||||
* It's possible that Bob's AT has reached its trading timeout and automatically refunded QORT back to Bob. In which case,
|
||||
* trade-bot is done with this specific trade and finalizes in refunded state.
|
||||
* <p>
|
||||
* Assuming trade-bot can extract a valid secret-A from Alice's MESSAGE then trade-bot uses that to redeem the DOGE funds from P2SH-A
|
||||
* to Bob's 'foreign'/Dogecoin trade legacy-format address, as derived from trade private key.
|
||||
* <p>
|
||||
* (This could potentially be 'improved' to send DOGE to any address of Bob's choosing by changing the transaction output).
|
||||
* <p>
|
||||
* If trade-bot successfully broadcasts the transaction, then this specific trade is done.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleBobWaitingForAtRedeem(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// AT should be 'finished' once Alice has redeemed QORT funds
|
||||
if (!atData.getIsFinished())
|
||||
// Not finished yet
|
||||
return;
|
||||
|
||||
// If AT is REFUNDED or CANCELLED then something has gone wrong
|
||||
if (crossChainTradeData.mode == AcctMode.REFUNDED || crossChainTradeData.mode == AcctMode.CANCELLED) {
|
||||
// Alice hasn't redeemed the QORT, so there is no point in trying to redeem the DOGE
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_REFUNDED,
|
||||
() -> String.format("AT %s has auto-refunded - trade aborted", tradeBotData.getAtAddress()));
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
byte[] secretA = DogecoinACCTv2.getInstance().findSecretA(repository, crossChainTradeData);
|
||||
if (secretA == null) {
|
||||
LOGGER.debug(() -> String.format("Unable to find secret-A from redeem message to AT %s?", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
// Use secret-A to redeem P2SH-A
|
||||
|
||||
Dogecoin dogecoin = Dogecoin.getInstance();
|
||||
|
||||
byte[] receivingAccountInfo = tradeBotData.getReceivingAccountInfo();
|
||||
int lockTimeA = crossChainTradeData.lockTimeA;
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(crossChainTradeData.partnerForeignPKH, lockTimeA, crossChainTradeData.creatorForeignPKH, crossChainTradeData.hashOfSecretA);
|
||||
String p2shAddressA = dogecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Dogecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(dogecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// P2SH-A suddenly not funded? Our best bet at this point is to hope for AT auto-refund
|
||||
return;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Double-check that we have redeemed P2SH-A...
|
||||
break;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
// Wait for AT to auto-refund
|
||||
return;
|
||||
|
||||
case FUNDED: {
|
||||
Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
|
||||
ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
|
||||
List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
|
||||
|
||||
Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(dogecoin.getNetworkParameters(), redeemAmount, redeemKey,
|
||||
fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
|
||||
|
||||
dogecoin.broadcastTransaction(p2shRedeemTransaction);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
String receivingAddress = dogecoin.pkhToAddress(receivingAccountInfo);
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_DONE,
|
||||
() -> String.format("P2SH-A %s redeemed. Funds should arrive at %s", tradeBotData.getAtAddress(), receivingAddress));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is attempting to refund P2SH-A.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleAliceRefundingP2shA(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
int lockTimeA = tradeBotData.getLockTimeA();
|
||||
|
||||
// We can't refund P2SH-A until lockTime-A has passed
|
||||
if (NTP.getTime() <= lockTimeA * 1000L)
|
||||
return;
|
||||
|
||||
Dogecoin dogecoin = Dogecoin.getInstance();
|
||||
|
||||
// We can't refund P2SH-A until median block time has passed lockTime-A (see BIP113)
|
||||
int medianBlockTime = dogecoin.getMedianBlockTime();
|
||||
if (medianBlockTime <= lockTimeA)
|
||||
return;
|
||||
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(tradeBotData.getTradeForeignPublicKeyHash(), lockTimeA, crossChainTradeData.creatorForeignPKH, tradeBotData.getHashOfSecret());
|
||||
String p2shAddressA = dogecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Dogecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(dogecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// Still waiting for P2SH-A to be funded...
|
||||
return;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Too late!
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("P2SH-A %s already spent!", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
break;
|
||||
|
||||
case FUNDED:{
|
||||
Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
|
||||
ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
|
||||
List<TransactionOutput> fundingOutputs = dogecoin.getUnspentOutputs(p2shAddressA);
|
||||
|
||||
// Determine receive address for refund
|
||||
String receiveAddress = dogecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());
|
||||
Address receiving = Address.fromString(dogecoin.getNetworkParameters(), receiveAddress);
|
||||
|
||||
Transaction p2shRefundTransaction = BitcoinyHTLC.buildRefundTransaction(dogecoin.getNetworkParameters(), refundAmount, refundKey,
|
||||
fundingOutputs, redeemScriptA, lockTimeA, receiving.getHash());
|
||||
|
||||
dogecoin.broadcastTransaction(p2shRefundTransaction);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDED,
|
||||
() -> String.format("LockTime-A reached. Refunded P2SH-A %s. Trade aborted", p2shAddressA));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns true if Alice finds AT unexpectedly cancelled, refunded, redeemed or locked to someone else.
|
||||
* <p>
|
||||
* Will automatically update trade-bot state to <tt>ALICE_REFUNDING_A</tt> or <tt>ALICE_DONE</tt> as necessary.
|
||||
*
|
||||
* @throws DataException
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private boolean aliceUnexpectedState(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// This is OK
|
||||
if (!atData.getIsFinished() && crossChainTradeData.mode == AcctMode.OFFERING)
|
||||
return false;
|
||||
|
||||
boolean isAtLockedToUs = tradeBotData.getTradeNativeAddress().equals(crossChainTradeData.qortalPartnerAddress);
|
||||
|
||||
if (!atData.getIsFinished() && crossChainTradeData.mode == AcctMode.TRADING)
|
||||
if (isAtLockedToUs) {
|
||||
// AT is trading with us - OK
|
||||
return false;
|
||||
} else {
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> String.format("AT %s trading with someone else: %s. Refunding & aborting trade", tradeBotData.getAtAddress(), crossChainTradeData.qortalPartnerAddress));
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
if (atData.getIsFinished() && crossChainTradeData.mode == AcctMode.REDEEMED && isAtLockedToUs) {
|
||||
// We've redeemed already?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("AT %s already redeemed by us. Trade completed", tradeBotData.getAtAddress()));
|
||||
} else {
|
||||
// Any other state is not good, so start defensive refund
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> String.format("AT %s cancelled/refunded/redeemed by someone else/invalid state. Refunding & aborting trade", tradeBotData.getAtAddress()));
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
private long calcFeeTimestamp(int lockTimeA, int tradeTimeout) {
|
||||
return (lockTimeA - tradeTimeout * 60) * 1000L;
|
||||
}
|
||||
|
||||
}
|
||||
@ -212,7 +212,7 @@ public class LitecoinACCTv1TradeBot implements AcctTradeBot {
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Built AT %s. Waiting for deployment", atAddress));
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
TradeBot.backupTradeBotData(repository);
|
||||
TradeBot.backupTradeBotData(repository, null);
|
||||
|
||||
// Return to user for signing and broadcast as we don't have their Qortal private key
|
||||
try {
|
||||
@ -287,7 +287,8 @@ public class LitecoinACCTv1TradeBot implements AcctTradeBot {
|
||||
crossChainTradeData.expectedForeignAmount, xprv58, null, lockTimeA, receivingPublicKeyHash);
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
TradeBot.backupTradeBotData(repository);
|
||||
// Include tradeBotData as an additional parameter, since it's not in the repository yet
|
||||
TradeBot.backupTradeBotData(repository, Arrays.asList(tradeBotData));
|
||||
|
||||
// Check we have enough funds via xprv58 to fund P2SH to cover expectedForeignAmount
|
||||
long p2shFee;
|
||||
|
||||
@ -0,0 +1,885 @@
|
||||
package org.qortal.controller.tradebot;
|
||||
|
||||
import org.apache.logging.log4j.LogManager;
|
||||
import org.apache.logging.log4j.Logger;
|
||||
import org.bitcoinj.core.*;
|
||||
import org.bitcoinj.script.Script.ScriptType;
|
||||
import org.qortal.account.PrivateKeyAccount;
|
||||
import org.qortal.account.PublicKeyAccount;
|
||||
import org.qortal.api.model.crosschain.TradeBotCreateRequest;
|
||||
import org.qortal.asset.Asset;
|
||||
import org.qortal.crosschain.*;
|
||||
import org.qortal.crypto.Crypto;
|
||||
import org.qortal.data.at.ATData;
|
||||
import org.qortal.data.crosschain.CrossChainTradeData;
|
||||
import org.qortal.data.crosschain.TradeBotData;
|
||||
import org.qortal.data.transaction.BaseTransactionData;
|
||||
import org.qortal.data.transaction.DeployAtTransactionData;
|
||||
import org.qortal.data.transaction.MessageTransactionData;
|
||||
import org.qortal.group.Group;
|
||||
import org.qortal.repository.DataException;
|
||||
import org.qortal.repository.Repository;
|
||||
import org.qortal.transaction.DeployAtTransaction;
|
||||
import org.qortal.transaction.MessageTransaction;
|
||||
import org.qortal.transaction.Transaction.ValidationResult;
|
||||
import org.qortal.transform.TransformationException;
|
||||
import org.qortal.transform.transaction.DeployAtTransactionTransformer;
|
||||
import org.qortal.utils.Base58;
|
||||
import org.qortal.utils.NTP;
|
||||
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
import static java.util.Arrays.stream;
|
||||
import static java.util.stream.Collectors.toMap;
|
||||
|
||||
/**
|
||||
* Performing cross-chain trading steps on behalf of user.
|
||||
* <p>
|
||||
* We deal with three different independent state-spaces here:
|
||||
* <ul>
|
||||
* <li>Qortal blockchain</li>
|
||||
* <li>Foreign blockchain</li>
|
||||
* <li>Trade-bot entries</li>
|
||||
* </ul>
|
||||
*/
|
||||
public class LitecoinACCTv2TradeBot implements AcctTradeBot {
|
||||
|
||||
private static final Logger LOGGER = LogManager.getLogger(LitecoinACCTv2TradeBot.class);
|
||||
|
||||
public enum State implements TradeBot.StateNameAndValueSupplier {
|
||||
BOB_WAITING_FOR_AT_CONFIRM(10, false, false),
|
||||
BOB_WAITING_FOR_MESSAGE(15, true, true),
|
||||
BOB_WAITING_FOR_AT_REDEEM(25, true, true),
|
||||
BOB_DONE(30, false, false),
|
||||
BOB_REFUNDED(35, false, false),
|
||||
|
||||
ALICE_WAITING_FOR_AT_LOCK(85, true, true),
|
||||
ALICE_DONE(95, false, false),
|
||||
ALICE_REFUNDING_A(105, true, true),
|
||||
ALICE_REFUNDED(110, false, false);
|
||||
|
||||
private static final Map<Integer, State> map = stream(State.values()).collect(toMap(state -> state.value, state -> state));
|
||||
|
||||
public final int value;
|
||||
public final boolean requiresAtData;
|
||||
public final boolean requiresTradeData;
|
||||
|
||||
State(int value, boolean requiresAtData, boolean requiresTradeData) {
|
||||
this.value = value;
|
||||
this.requiresAtData = requiresAtData;
|
||||
this.requiresTradeData = requiresTradeData;
|
||||
}
|
||||
|
||||
public static State valueOf(int value) {
|
||||
return map.get(value);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getState() {
|
||||
return this.name();
|
||||
}
|
||||
|
||||
@Override
|
||||
public int getStateValue() {
|
||||
return this.value;
|
||||
}
|
||||
}
|
||||
|
||||
/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
|
||||
private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
|
||||
|
||||
private static LitecoinACCTv2TradeBot instance;
|
||||
|
||||
private final List<String> endStates = Arrays.asList(State.BOB_DONE, State.BOB_REFUNDED, State.ALICE_DONE, State.ALICE_REFUNDING_A, State.ALICE_REFUNDED).stream()
|
||||
.map(State::name)
|
||||
.collect(Collectors.toUnmodifiableList());
|
||||
|
||||
private LitecoinACCTv2TradeBot() {
|
||||
}
|
||||
|
||||
public static synchronized LitecoinACCTv2TradeBot getInstance() {
|
||||
if (instance == null)
|
||||
instance = new LitecoinACCTv2TradeBot();
|
||||
|
||||
return instance;
|
||||
}
|
||||
|
||||
@Override
|
||||
public List<String> getEndStates() {
|
||||
return this.endStates;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new trade-bot entry from the "Bob" viewpoint, i.e. OFFERing QORT in exchange for LTC.
|
||||
* <p>
|
||||
* Generates:
|
||||
* <ul>
|
||||
* <li>new 'trade' private key</li>
|
||||
* </ul>
|
||||
* Derives:
|
||||
* <ul>
|
||||
* <li>'native' (as in Qortal) public key, public key hash, address (starting with Q)</li>
|
||||
* <li>'foreign' (as in Litecoin) public key, public key hash</li>
|
||||
* </ul>
|
||||
* A Qortal AT is then constructed including the following as constants in the 'data segment':
|
||||
* <ul>
|
||||
* <li>'native'/Qortal 'trade' address - used as a MESSAGE contact</li>
|
||||
* <li>'foreign'/Litecoin public key hash - used by Alice's P2SH scripts to allow redeem</li>
|
||||
* <li>QORT amount on offer by Bob</li>
|
||||
* <li>LTC amount expected in return by Bob (from Alice)</li>
|
||||
* <li>trading timeout, in case things go wrong and everyone needs to refund</li>
|
||||
* </ul>
|
||||
* Returns a DEPLOY_AT transaction that needs to be signed and broadcast to the Qortal network.
|
||||
* <p>
|
||||
* Trade-bot will wait for Bob's AT to be deployed before taking next step.
|
||||
* <p>
|
||||
* @param repository
|
||||
* @param tradeBotCreateRequest
|
||||
* @return raw, unsigned DEPLOY_AT transaction
|
||||
* @throws DataException
|
||||
*/
|
||||
public byte[] createTrade(Repository repository, TradeBotCreateRequest tradeBotCreateRequest) throws DataException {
|
||||
byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
|
||||
|
||||
byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
|
||||
byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
|
||||
String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
|
||||
|
||||
byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
|
||||
byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
|
||||
|
||||
// Convert Litecoin receiving address into public key hash (we only support P2PKH at this time)
|
||||
Address litecoinReceivingAddress;
|
||||
try {
|
||||
litecoinReceivingAddress = Address.fromString(Litecoin.getInstance().getNetworkParameters(), tradeBotCreateRequest.receivingAddress);
|
||||
} catch (AddressFormatException e) {
|
||||
throw new DataException("Unsupported Litecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
|
||||
}
|
||||
if (litecoinReceivingAddress.getOutputScriptType() != ScriptType.P2PKH)
|
||||
throw new DataException("Unsupported Litecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
|
||||
|
||||
byte[] litecoinReceivingAccountInfo = litecoinReceivingAddress.getHash();
|
||||
|
||||
PublicKeyAccount creator = new PublicKeyAccount(repository, tradeBotCreateRequest.creatorPublicKey);
|
||||
|
||||
// Deploy AT
|
||||
long timestamp = NTP.getTime();
|
||||
byte[] reference = creator.getLastReference();
|
||||
long fee = 0L;
|
||||
byte[] signature = null;
|
||||
BaseTransactionData baseTransactionData = new BaseTransactionData(timestamp, Group.NO_GROUP, reference, creator.getPublicKey(), fee, signature);
|
||||
|
||||
String name = "QORT/LTC ACCT";
|
||||
String description = "QORT/LTC cross-chain trade";
|
||||
String aTType = "ACCT";
|
||||
String tags = "ACCT QORT LTC";
|
||||
byte[] creationBytes = LitecoinACCTv2.buildQortalAT(tradeNativeAddress, tradeForeignPublicKeyHash, tradeBotCreateRequest.qortAmount,
|
||||
tradeBotCreateRequest.foreignAmount, tradeBotCreateRequest.tradeTimeout);
|
||||
long amount = tradeBotCreateRequest.fundingQortAmount;
|
||||
|
||||
DeployAtTransactionData deployAtTransactionData = new DeployAtTransactionData(baseTransactionData, name, description, aTType, tags, creationBytes, amount, Asset.QORT);
|
||||
|
||||
DeployAtTransaction deployAtTransaction = new DeployAtTransaction(repository, deployAtTransactionData);
|
||||
fee = deployAtTransaction.calcRecommendedFee();
|
||||
deployAtTransactionData.setFee(fee);
|
||||
|
||||
DeployAtTransaction.ensureATAddress(deployAtTransactionData);
|
||||
String atAddress = deployAtTransactionData.getAtAddress();
|
||||
|
||||
TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, LitecoinACCTv2.NAME,
|
||||
State.BOB_WAITING_FOR_AT_CONFIRM.name(), State.BOB_WAITING_FOR_AT_CONFIRM.value,
|
||||
creator.getAddress(), atAddress, timestamp, tradeBotCreateRequest.qortAmount,
|
||||
tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
|
||||
null, null,
|
||||
SupportedBlockchain.LITECOIN.name(),
|
||||
tradeForeignPublicKey, tradeForeignPublicKeyHash,
|
||||
tradeBotCreateRequest.foreignAmount, null, null, null, litecoinReceivingAccountInfo);
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Built AT %s. Waiting for deployment", atAddress));
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
TradeBot.backupTradeBotData(repository, null);
|
||||
|
||||
// Return to user for signing and broadcast as we don't have their Qortal private key
|
||||
try {
|
||||
return DeployAtTransactionTransformer.toBytes(deployAtTransactionData);
|
||||
} catch (TransformationException e) {
|
||||
throw new DataException("Failed to transform DEPLOY_AT transaction?", e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a trade-bot entry from the 'Alice' viewpoint, i.e. matching LTC to an existing offer.
|
||||
* <p>
|
||||
* Requires a chosen trade offer from Bob, passed by <tt>crossChainTradeData</tt>
|
||||
* and access to a Litecoin wallet via <tt>xprv58</tt>.
|
||||
* <p>
|
||||
* The <tt>crossChainTradeData</tt> contains the current trade offer state
|
||||
* as extracted from the AT's data segment.
|
||||
* <p>
|
||||
* Access to a funded wallet is via a Litecoin BIP32 hierarchical deterministic key,
|
||||
* passed via <tt>xprv58</tt>.
|
||||
* <b>This key will be stored in your node's database</b>
|
||||
* to allow trade-bot to create/fund the necessary P2SH transactions!
|
||||
* However, due to the nature of BIP32 keys, it is possible to give the trade-bot
|
||||
* only a subset of wallet access (see BIP32 for more details).
|
||||
* <p>
|
||||
* As an example, the xprv58 can be extract from a <i>legacy, password-less</i>
|
||||
* Electrum wallet by going to the console tab and entering:<br>
|
||||
* <tt>wallet.keystore.xprv</tt><br>
|
||||
* which should result in a base58 string starting with either 'xprv' (for Litecoin main-net)
|
||||
* or 'tprv' for (Litecoin test-net).
|
||||
* <p>
|
||||
* It is envisaged that the value in <tt>xprv58</tt> will actually come from a Qortal-UI-managed wallet.
|
||||
* <p>
|
||||
* If sufficient funds are available, <b>this method will actually fund the P2SH-A</b>
|
||||
* with the Litecoin amount expected by 'Bob'.
|
||||
* <p>
|
||||
* If the Litecoin transaction is successfully broadcast to the network then
|
||||
* we also send a MESSAGE to Bob's trade-bot to let them know.
|
||||
* <p>
|
||||
* The trade-bot entry is saved to the repository and the cross-chain trading process commences.
|
||||
* <p>
|
||||
* @param repository
|
||||
* @param crossChainTradeData chosen trade OFFER that Alice wants to match
|
||||
* @param xprv58 funded wallet xprv in base58
|
||||
* @return true if P2SH-A funding transaction successfully broadcast to Litecoin network, false otherwise
|
||||
* @throws DataException
|
||||
*/
|
||||
public ResponseResult startResponse(Repository repository, ATData atData, ACCT acct, CrossChainTradeData crossChainTradeData, String xprv58, String receivingAddress) throws DataException {
|
||||
byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
|
||||
byte[] secretA = TradeBot.generateSecret();
|
||||
byte[] hashOfSecretA = Crypto.hash160(secretA);
|
||||
|
||||
byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
|
||||
byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
|
||||
String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
|
||||
|
||||
byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
|
||||
byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
|
||||
byte[] receivingPublicKeyHash = Base58.decode(receivingAddress); // Actually the whole address, not just PKH
|
||||
|
||||
// We need to generate lockTime-A: add tradeTimeout to now
|
||||
long now = NTP.getTime();
|
||||
int lockTimeA = crossChainTradeData.tradeTimeout * 60 + (int) (now / 1000L);
|
||||
|
||||
TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, LitecoinACCTv2.NAME,
|
||||
State.ALICE_WAITING_FOR_AT_LOCK.name(), State.ALICE_WAITING_FOR_AT_LOCK.value,
|
||||
receivingAddress, crossChainTradeData.qortalAtAddress, now, crossChainTradeData.qortAmount,
|
||||
tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
|
||||
secretA, hashOfSecretA,
|
||||
SupportedBlockchain.LITECOIN.name(),
|
||||
tradeForeignPublicKey, tradeForeignPublicKeyHash,
|
||||
crossChainTradeData.expectedForeignAmount, xprv58, null, lockTimeA, receivingPublicKeyHash);
|
||||
|
||||
// Attempt to backup the trade bot data
|
||||
// Include tradeBotData as an additional parameter, since it's not in the repository yet
|
||||
TradeBot.backupTradeBotData(repository, Arrays.asList(tradeBotData));
|
||||
|
||||
// Check we have enough funds via xprv58 to fund P2SH to cover expectedForeignAmount
|
||||
long p2shFee;
|
||||
try {
|
||||
p2shFee = Litecoin.getInstance().getP2shFee(now);
|
||||
} catch (ForeignBlockchainException e) {
|
||||
LOGGER.debug("Couldn't estimate Litecoin fees?");
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
// Do not include fee for funding transaction as this is covered by buildSpend()
|
||||
long amountA = crossChainTradeData.expectedForeignAmount + p2shFee /*redeeming/refunding P2SH-A*/;
|
||||
|
||||
// P2SH-A to be funded
|
||||
byte[] redeemScriptBytes = BitcoinyHTLC.buildScript(tradeForeignPublicKeyHash, lockTimeA, crossChainTradeData.creatorForeignPKH, hashOfSecretA);
|
||||
String p2shAddress = Litecoin.getInstance().deriveP2shAddress(redeemScriptBytes);
|
||||
|
||||
// Build transaction for funding P2SH-A
|
||||
Transaction p2shFundingTransaction = Litecoin.getInstance().buildSpend(tradeBotData.getForeignKey(), p2shAddress, amountA);
|
||||
if (p2shFundingTransaction == null) {
|
||||
LOGGER.debug("Unable to build P2SH-A funding transaction - lack of funds?");
|
||||
return ResponseResult.BALANCE_ISSUE;
|
||||
}
|
||||
|
||||
try {
|
||||
Litecoin.getInstance().broadcastTransaction(p2shFundingTransaction);
|
||||
} catch (ForeignBlockchainException e) {
|
||||
// We couldn't fund P2SH-A at this time
|
||||
LOGGER.debug("Couldn't broadcast P2SH-A funding transaction?");
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
|
||||
// Attempt to send MESSAGE to Bob's Qortal trade address
|
||||
byte[] messageData = LitecoinACCTv2.buildOfferMessage(tradeBotData.getTradeForeignPublicKeyHash(), tradeBotData.getHashOfSecret(), tradeBotData.getLockTimeA());
|
||||
String messageRecipient = crossChainTradeData.qortalCreatorTradeAddress;
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction messageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, messageData, false, false);
|
||||
|
||||
messageTransaction.computeNonce();
|
||||
messageTransaction.sign(sender);
|
||||
|
||||
// reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = messageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to Bob's trade-bot %s: %s", messageRecipient, result.name()));
|
||||
return ResponseResult.NETWORK_ISSUE;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, () -> String.format("Funding P2SH-A %s. Messaged Bob. Waiting for AT-lock", p2shAddress));
|
||||
|
||||
return ResponseResult.OK;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean canDelete(Repository repository, TradeBotData tradeBotData) throws DataException {
|
||||
State tradeBotState = State.valueOf(tradeBotData.getStateValue());
|
||||
if (tradeBotState == null)
|
||||
return true;
|
||||
|
||||
// If the AT doesn't exist then we might as well let the user tidy up
|
||||
if (!repository.getATRepository().exists(tradeBotData.getAtAddress()))
|
||||
return true;
|
||||
|
||||
switch (tradeBotState) {
|
||||
case BOB_WAITING_FOR_AT_CONFIRM:
|
||||
case ALICE_DONE:
|
||||
case BOB_DONE:
|
||||
case ALICE_REFUNDED:
|
||||
case BOB_REFUNDED:
|
||||
case ALICE_REFUNDING_A:
|
||||
return true;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void progress(Repository repository, TradeBotData tradeBotData) throws DataException, ForeignBlockchainException {
|
||||
State tradeBotState = State.valueOf(tradeBotData.getStateValue());
|
||||
if (tradeBotState == null) {
|
||||
LOGGER.info(() -> String.format("Trade-bot entry for AT %s has invalid state?", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
ATData atData = null;
|
||||
CrossChainTradeData tradeData = null;
|
||||
|
||||
if (tradeBotState.requiresAtData) {
|
||||
// Attempt to fetch AT data
|
||||
atData = repository.getATRepository().fromATAddress(tradeBotData.getAtAddress());
|
||||
if (atData == null) {
|
||||
LOGGER.debug(() -> String.format("Unable to fetch trade AT %s from repository", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
if (tradeBotState.requiresTradeData) {
|
||||
tradeData = LitecoinACCTv2.getInstance().populateTradeData(repository, atData);
|
||||
if (tradeData == null) {
|
||||
LOGGER.warn(() -> String.format("Unable to fetch ACCT trade data for AT %s from repository", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
switch (tradeBotState) {
|
||||
case BOB_WAITING_FOR_AT_CONFIRM:
|
||||
handleBobWaitingForAtConfirm(repository, tradeBotData);
|
||||
break;
|
||||
|
||||
case BOB_WAITING_FOR_MESSAGE:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleBobWaitingForMessage(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_WAITING_FOR_AT_LOCK:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleAliceWaitingForAtLock(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case BOB_WAITING_FOR_AT_REDEEM:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleBobWaitingForAtRedeem(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_DONE:
|
||||
case BOB_DONE:
|
||||
break;
|
||||
|
||||
case ALICE_REFUNDING_A:
|
||||
TradeBot.getInstance().updatePresence(repository, tradeBotData, tradeData);
|
||||
handleAliceRefundingP2shA(repository, tradeBotData, atData, tradeData);
|
||||
break;
|
||||
|
||||
case ALICE_REFUNDED:
|
||||
case BOB_REFUNDED:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Bob's AT to deploy.
|
||||
* <p>
|
||||
* If AT is deployed, then trade-bot's next step is to wait for MESSAGE from Alice.
|
||||
*/
|
||||
private void handleBobWaitingForAtConfirm(Repository repository, TradeBotData tradeBotData) throws DataException {
|
||||
if (!repository.getATRepository().exists(tradeBotData.getAtAddress())) {
|
||||
if (NTP.getTime() - tradeBotData.getTimestamp() <= MAX_AT_CONFIRMATION_PERIOD)
|
||||
return;
|
||||
|
||||
// We've waited ages for AT to be confirmed into a block but something has gone awry.
|
||||
// After this long we assume transaction loss so give up with trade-bot entry too.
|
||||
tradeBotData.setState(State.BOB_REFUNDED.name());
|
||||
tradeBotData.setStateValue(State.BOB_REFUNDED.value);
|
||||
tradeBotData.setTimestamp(NTP.getTime());
|
||||
// We delete trade-bot entry here instead of saving, hence not using updateTradeBotState()
|
||||
repository.getCrossChainRepository().delete(tradeBotData.getTradePrivateKey());
|
||||
repository.saveChanges();
|
||||
|
||||
LOGGER.info(() -> String.format("AT %s never confirmed. Giving up on trade", tradeBotData.getAtAddress()));
|
||||
TradeBot.notifyStateChange(tradeBotData);
|
||||
return;
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_WAITING_FOR_MESSAGE,
|
||||
() -> String.format("AT %s confirmed ready. Waiting for trade message", tradeBotData.getAtAddress()));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for MESSAGE from Alice's trade-bot, containing Alice's trade info.
|
||||
* <p>
|
||||
* It's possible Bob has cancelling his trade offer, receiving an automatic QORT refund,
|
||||
* in which case trade-bot is done with this specific trade and finalizes on refunded state.
|
||||
* <p>
|
||||
* Assuming trade is still on offer, trade-bot checks the contents of MESSAGE from Alice's trade-bot.
|
||||
* <p>
|
||||
* Details from Alice are used to derive P2SH-A address and this is checked for funding balance.
|
||||
* <p>
|
||||
* Assuming P2SH-A has at least expected Litecoin balance,
|
||||
* Bob's trade-bot constructs a zero-fee, PoW MESSAGE to send to Bob's AT with more trade details.
|
||||
* <p>
|
||||
* On processing this MESSAGE, Bob's AT should switch into 'TRADE' mode and only trade with Alice.
|
||||
* <p>
|
||||
* Trade-bot's next step is to wait for Alice to redeem the AT, which will allow Bob to
|
||||
* extract secret-A needed to redeem Alice's P2SH.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleBobWaitingForMessage(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// If AT has finished then Bob likely cancelled his trade offer
|
||||
if (atData.getIsFinished()) {
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_REFUNDED,
|
||||
() -> String.format("AT %s cancelled - trading aborted", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
Litecoin litecoin = Litecoin.getInstance();
|
||||
|
||||
String address = tradeBotData.getTradeNativeAddress();
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(null, address, null, null, null);
|
||||
|
||||
for (MessageTransactionData messageTransactionData : messageTransactionsData) {
|
||||
if (messageTransactionData.isText())
|
||||
continue;
|
||||
|
||||
// We're expecting: HASH160(secret-A), Alice's Litecoin pubkeyhash and lockTime-A
|
||||
byte[] messageData = messageTransactionData.getData();
|
||||
LitecoinACCTv2.OfferMessageData offerMessageData = LitecoinACCTv2.extractOfferMessageData(messageData);
|
||||
if (offerMessageData == null)
|
||||
continue;
|
||||
|
||||
byte[] aliceForeignPublicKeyHash = offerMessageData.partnerLitecoinPKH;
|
||||
byte[] hashOfSecretA = offerMessageData.hashOfSecretA;
|
||||
int lockTimeA = (int) offerMessageData.lockTimeA;
|
||||
long messageTimestamp = messageTransactionData.getTimestamp();
|
||||
int refundTimeout = LitecoinACCTv2.calcRefundTimeout(messageTimestamp, lockTimeA);
|
||||
|
||||
// Determine P2SH-A address and confirm funded
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(aliceForeignPublicKeyHash, lockTimeA, tradeBotData.getTradeForeignPublicKeyHash(), hashOfSecretA);
|
||||
String p2shAddressA = litecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Litecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
final long minimumAmountA = tradeBotData.getForeignAmount() + p2shFee;
|
||||
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(litecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// There might be another MESSAGE from someone else with an actually funded P2SH-A...
|
||||
continue;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// We've already redeemed this?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_DONE,
|
||||
() -> String.format("P2SH-A %s already spent? Assuming trade complete", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
// This P2SH-A is burnt, but there might be another MESSAGE from someone else with an actually funded P2SH-A...
|
||||
continue;
|
||||
|
||||
case FUNDED:
|
||||
// Fall-through out of switch...
|
||||
break;
|
||||
}
|
||||
|
||||
// Good to go - send MESSAGE to AT
|
||||
|
||||
String aliceNativeAddress = Crypto.toAddress(messageTransactionData.getCreatorPublicKey());
|
||||
|
||||
// Build outgoing message, padding each part to 32 bytes to make it easier for AT to consume
|
||||
byte[] outgoingMessageData = LitecoinACCTv2.buildTradeMessage(aliceNativeAddress, aliceForeignPublicKeyHash, hashOfSecretA, lockTimeA, refundTimeout);
|
||||
String messageRecipient = tradeBotData.getAtAddress();
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, outgoingMessageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction outgoingMessageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, outgoingMessageData, false, false);
|
||||
|
||||
outgoingMessageTransaction.computeNonce();
|
||||
outgoingMessageTransaction.sign(sender);
|
||||
|
||||
// reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = outgoingMessageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to AT %s: %s", messageRecipient, result.name()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_WAITING_FOR_AT_REDEEM,
|
||||
() -> String.format("Locked AT %s to %s. Waiting for AT redeem", tradeBotData.getAtAddress(), aliceNativeAddress));
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Bob's AT to switch to TRADE mode and lock trade to Alice only.
|
||||
* <p>
|
||||
* It's possible that Bob has cancelled his trade offer in the mean time, or that somehow
|
||||
* this process has taken so long that we've reached P2SH-A's locktime, or that someone else
|
||||
* has managed to trade with Bob. In any of these cases, trade-bot switches to begin the refunding process.
|
||||
* <p>
|
||||
* Assuming Bob's AT is locked to Alice, trade-bot checks AT's state data to make sure it is correct.
|
||||
* <p>
|
||||
* If all is well, trade-bot then redeems AT using Alice's secret-A, releasing Bob's QORT to Alice.
|
||||
* <p>
|
||||
* In revealing a valid secret-A, Bob can then redeem the LTC funds from P2SH-A.
|
||||
* <p>
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleAliceWaitingForAtLock(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
if (aliceUnexpectedState(repository, tradeBotData, atData, crossChainTradeData))
|
||||
return;
|
||||
|
||||
Litecoin litecoin = Litecoin.getInstance();
|
||||
int lockTimeA = tradeBotData.getLockTimeA();
|
||||
|
||||
// Refund P2SH-A if we've passed lockTime-A
|
||||
if (NTP.getTime() >= lockTimeA * 1000L) {
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(tradeBotData.getTradeForeignPublicKeyHash(), lockTimeA, crossChainTradeData.creatorForeignPKH, tradeBotData.getHashOfSecret());
|
||||
String p2shAddressA = litecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Litecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(litecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
case FUNDED:
|
||||
break;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Already redeemed?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("P2SH-A %s already spent? Assuming trade completed", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDED,
|
||||
() -> String.format("P2SH-A %s already refunded. Trade aborted", p2shAddressA));
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> atData.getIsFinished()
|
||||
? String.format("AT %s cancelled. Refunding P2SH-A %s - aborting trade", tradeBotData.getAtAddress(), p2shAddressA)
|
||||
: String.format("LockTime-A reached, refunding P2SH-A %s - aborting trade", p2shAddressA));
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
// We're waiting for AT to be in TRADE mode
|
||||
if (crossChainTradeData.mode != AcctMode.TRADING)
|
||||
return;
|
||||
|
||||
// AT is in TRADE mode and locked to us as checked by aliceUnexpectedState() above
|
||||
|
||||
// Find our MESSAGE to AT from previous state
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(tradeBotData.getTradeNativePublicKey(),
|
||||
crossChainTradeData.qortalCreatorTradeAddress, null, null, null);
|
||||
if (messageTransactionsData == null || messageTransactionsData.isEmpty()) {
|
||||
LOGGER.warn(() -> String.format("Unable to find our message to trade creator %s?", crossChainTradeData.qortalCreatorTradeAddress));
|
||||
return;
|
||||
}
|
||||
|
||||
long recipientMessageTimestamp = messageTransactionsData.get(0).getTimestamp();
|
||||
int refundTimeout = LitecoinACCTv2.calcRefundTimeout(recipientMessageTimestamp, lockTimeA);
|
||||
|
||||
// Our calculated refundTimeout should match AT's refundTimeout
|
||||
if (refundTimeout != crossChainTradeData.refundTimeout) {
|
||||
LOGGER.debug(() -> String.format("Trade AT refundTimeout '%d' doesn't match our refundTimeout '%d'", crossChainTradeData.refundTimeout, refundTimeout));
|
||||
// We'll eventually refund
|
||||
return;
|
||||
}
|
||||
|
||||
// We're good to redeem AT
|
||||
|
||||
// Send 'redeem' MESSAGE to AT using both secret
|
||||
byte[] secretA = tradeBotData.getSecret();
|
||||
String qortalReceivingAddress = Base58.encode(tradeBotData.getReceivingAccountInfo()); // Actually contains whole address, not just PKH
|
||||
byte[] messageData = LitecoinACCTv2.buildRedeemMessage(secretA, qortalReceivingAddress);
|
||||
String messageRecipient = tradeBotData.getAtAddress();
|
||||
|
||||
boolean isMessageAlreadySent = repository.getMessageRepository().exists(tradeBotData.getTradeNativePublicKey(), messageRecipient, messageData);
|
||||
if (!isMessageAlreadySent) {
|
||||
PrivateKeyAccount sender = new PrivateKeyAccount(repository, tradeBotData.getTradePrivateKey());
|
||||
MessageTransaction messageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, messageRecipient, messageData, false, false);
|
||||
|
||||
messageTransaction.computeNonce();
|
||||
messageTransaction.sign(sender);
|
||||
|
||||
// Reset repository state to prevent deadlock
|
||||
repository.discardChanges();
|
||||
ValidationResult result = messageTransaction.importAsUnconfirmed();
|
||||
|
||||
if (result != ValidationResult.OK) {
|
||||
LOGGER.warn(() -> String.format("Unable to send MESSAGE to AT %s: %s", messageRecipient, result.name()));
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("Redeeming AT %s. Funds should arrive at %s",
|
||||
tradeBotData.getAtAddress(), qortalReceivingAddress));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is waiting for Alice to redeem Bob's AT, thus revealing secret-A which is required to spend the LTC funds from P2SH-A.
|
||||
* <p>
|
||||
* It's possible that Bob's AT has reached its trading timeout and automatically refunded QORT back to Bob. In which case,
|
||||
* trade-bot is done with this specific trade and finalizes in refunded state.
|
||||
* <p>
|
||||
* Assuming trade-bot can extract a valid secret-A from Alice's MESSAGE then trade-bot uses that to redeem the LTC funds from P2SH-A
|
||||
* to Bob's 'foreign'/Litecoin trade legacy-format address, as derived from trade private key.
|
||||
* <p>
|
||||
* (This could potentially be 'improved' to send LTC to any address of Bob's choosing by changing the transaction output).
|
||||
* <p>
|
||||
* If trade-bot successfully broadcasts the transaction, then this specific trade is done.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleBobWaitingForAtRedeem(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// AT should be 'finished' once Alice has redeemed QORT funds
|
||||
if (!atData.getIsFinished())
|
||||
// Not finished yet
|
||||
return;
|
||||
|
||||
// If AT is REFUNDED or CANCELLED then something has gone wrong
|
||||
if (crossChainTradeData.mode == AcctMode.REFUNDED || crossChainTradeData.mode == AcctMode.CANCELLED) {
|
||||
// Alice hasn't redeemed the QORT, so there is no point in trying to redeem the LTC
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_REFUNDED,
|
||||
() -> String.format("AT %s has auto-refunded - trade aborted", tradeBotData.getAtAddress()));
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
byte[] secretA = LitecoinACCTv2.getInstance().findSecretA(repository, crossChainTradeData);
|
||||
if (secretA == null) {
|
||||
LOGGER.debug(() -> String.format("Unable to find secret-A from redeem message to AT %s?", tradeBotData.getAtAddress()));
|
||||
return;
|
||||
}
|
||||
|
||||
// Use secret-A to redeem P2SH-A
|
||||
|
||||
Litecoin litecoin = Litecoin.getInstance();
|
||||
|
||||
byte[] receivingAccountInfo = tradeBotData.getReceivingAccountInfo();
|
||||
int lockTimeA = crossChainTradeData.lockTimeA;
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(crossChainTradeData.partnerForeignPKH, lockTimeA, crossChainTradeData.creatorForeignPKH, crossChainTradeData.hashOfSecretA);
|
||||
String p2shAddressA = litecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Litecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(litecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// P2SH-A suddenly not funded? Our best bet at this point is to hope for AT auto-refund
|
||||
return;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Double-check that we have redeemed P2SH-A...
|
||||
break;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
// Wait for AT to auto-refund
|
||||
return;
|
||||
|
||||
case FUNDED: {
|
||||
Coin redeemAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
|
||||
ECKey redeemKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
|
||||
List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
|
||||
|
||||
Transaction p2shRedeemTransaction = BitcoinyHTLC.buildRedeemTransaction(litecoin.getNetworkParameters(), redeemAmount, redeemKey,
|
||||
fundingOutputs, redeemScriptA, secretA, receivingAccountInfo);
|
||||
|
||||
litecoin.broadcastTransaction(p2shRedeemTransaction);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
String receivingAddress = litecoin.pkhToAddress(receivingAccountInfo);
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.BOB_DONE,
|
||||
() -> String.format("P2SH-A %s redeemed. Funds should arrive at %s", tradeBotData.getAtAddress(), receivingAddress));
|
||||
}
|
||||
|
||||
/**
|
||||
* Trade-bot is attempting to refund P2SH-A.
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private void handleAliceRefundingP2shA(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
int lockTimeA = tradeBotData.getLockTimeA();
|
||||
|
||||
// We can't refund P2SH-A until lockTime-A has passed
|
||||
if (NTP.getTime() <= lockTimeA * 1000L)
|
||||
return;
|
||||
|
||||
Litecoin litecoin = Litecoin.getInstance();
|
||||
|
||||
// We can't refund P2SH-A until median block time has passed lockTime-A (see BIP113)
|
||||
int medianBlockTime = litecoin.getMedianBlockTime();
|
||||
if (medianBlockTime <= lockTimeA)
|
||||
return;
|
||||
|
||||
byte[] redeemScriptA = BitcoinyHTLC.buildScript(tradeBotData.getTradeForeignPublicKeyHash(), lockTimeA, crossChainTradeData.creatorForeignPKH, tradeBotData.getHashOfSecret());
|
||||
String p2shAddressA = litecoin.deriveP2shAddress(redeemScriptA);
|
||||
|
||||
// Fee for redeem/refund is subtracted from P2SH-A balance.
|
||||
long feeTimestamp = calcFeeTimestamp(lockTimeA, crossChainTradeData.tradeTimeout);
|
||||
long p2shFee = Litecoin.getInstance().getP2shFee(feeTimestamp);
|
||||
long minimumAmountA = crossChainTradeData.expectedForeignAmount + p2shFee;
|
||||
BitcoinyHTLC.Status htlcStatusA = BitcoinyHTLC.determineHtlcStatus(litecoin.getBlockchainProvider(), p2shAddressA, minimumAmountA);
|
||||
|
||||
switch (htlcStatusA) {
|
||||
case UNFUNDED:
|
||||
case FUNDING_IN_PROGRESS:
|
||||
// Still waiting for P2SH-A to be funded...
|
||||
return;
|
||||
|
||||
case REDEEM_IN_PROGRESS:
|
||||
case REDEEMED:
|
||||
// Too late!
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("P2SH-A %s already spent!", p2shAddressA));
|
||||
return;
|
||||
|
||||
case REFUND_IN_PROGRESS:
|
||||
case REFUNDED:
|
||||
break;
|
||||
|
||||
case FUNDED:{
|
||||
Coin refundAmount = Coin.valueOf(crossChainTradeData.expectedForeignAmount);
|
||||
ECKey refundKey = ECKey.fromPrivate(tradeBotData.getTradePrivateKey());
|
||||
List<TransactionOutput> fundingOutputs = litecoin.getUnspentOutputs(p2shAddressA);
|
||||
|
||||
// Determine receive address for refund
|
||||
String receiveAddress = litecoin.getUnusedReceiveAddress(tradeBotData.getForeignKey());
|
||||
Address receiving = Address.fromString(litecoin.getNetworkParameters(), receiveAddress);
|
||||
|
||||
Transaction p2shRefundTransaction = BitcoinyHTLC.buildRefundTransaction(litecoin.getNetworkParameters(), refundAmount, refundKey,
|
||||
fundingOutputs, redeemScriptA, lockTimeA, receiving.getHash());
|
||||
|
||||
litecoin.broadcastTransaction(p2shRefundTransaction);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDED,
|
||||
() -> String.format("LockTime-A reached. Refunded P2SH-A %s. Trade aborted", p2shAddressA));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns true if Alice finds AT unexpectedly cancelled, refunded, redeemed or locked to someone else.
|
||||
* <p>
|
||||
* Will automatically update trade-bot state to <tt>ALICE_REFUNDING_A</tt> or <tt>ALICE_DONE</tt> as necessary.
|
||||
*
|
||||
* @throws DataException
|
||||
* @throws ForeignBlockchainException
|
||||
*/
|
||||
private boolean aliceUnexpectedState(Repository repository, TradeBotData tradeBotData,
|
||||
ATData atData, CrossChainTradeData crossChainTradeData) throws DataException, ForeignBlockchainException {
|
||||
// This is OK
|
||||
if (!atData.getIsFinished() && crossChainTradeData.mode == AcctMode.OFFERING)
|
||||
return false;
|
||||
|
||||
boolean isAtLockedToUs = tradeBotData.getTradeNativeAddress().equals(crossChainTradeData.qortalPartnerAddress);
|
||||
|
||||
if (!atData.getIsFinished() && crossChainTradeData.mode == AcctMode.TRADING)
|
||||
if (isAtLockedToUs) {
|
||||
// AT is trading with us - OK
|
||||
return false;
|
||||
} else {
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> String.format("AT %s trading with someone else: %s. Refunding & aborting trade", tradeBotData.getAtAddress(), crossChainTradeData.qortalPartnerAddress));
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
if (atData.getIsFinished() && crossChainTradeData.mode == AcctMode.REDEEMED && isAtLockedToUs) {
|
||||
// We've redeemed already?
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_DONE,
|
||||
() -> String.format("AT %s already redeemed by us. Trade completed", tradeBotData.getAtAddress()));
|
||||
} else {
|
||||
// Any other state is not good, so start defensive refund
|
||||
TradeBot.updateTradeBotState(repository, tradeBotData, State.ALICE_REFUNDING_A,
|
||||
() -> String.format("AT %s cancelled/refunded/redeemed by someone else/invalid state. Refunding & aborting trade", tradeBotData.getAtAddress()));
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
private long calcFeeTimestamp(int lockTimeA, int tradeTimeout) {
|
||||
return (lockTimeA - tradeTimeout * 60) * 1000L;
|
||||
}
|
||||
|
||||
}
|
||||
@ -31,6 +31,7 @@ import org.qortal.gui.SysTray;
|
||||
import org.qortal.repository.DataException;
|
||||
import org.qortal.repository.Repository;
|
||||
import org.qortal.repository.RepositoryManager;
|
||||
import org.qortal.repository.hsqldb.HSQLDBImportExport;
|
||||
import org.qortal.settings.Settings;
|
||||
import org.qortal.transaction.PresenceTransaction;
|
||||
import org.qortal.transaction.PresenceTransaction.PresenceType;
|
||||
@ -76,7 +77,9 @@ public class TradeBot implements Listener {
|
||||
static {
|
||||
acctTradeBotSuppliers.put(BitcoinACCTv1.class, BitcoinACCTv1TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(LitecoinACCTv1.class, LitecoinACCTv1TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(LitecoinACCTv2.class, LitecoinACCTv2TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(DogecoinACCTv1.class, DogecoinACCTv1TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(DogecoinACCTv2.class, DogecoinACCTv2TradeBot::getInstance);
|
||||
}
|
||||
|
||||
private static TradeBot instance;
|
||||
@ -265,11 +268,11 @@ public class TradeBot implements Listener {
|
||||
return secret;
|
||||
}
|
||||
|
||||
/*package*/ static void backupTradeBotData(Repository repository) {
|
||||
/*package*/ static void backupTradeBotData(Repository repository, List<TradeBotData> additional) {
|
||||
// Attempt to backup the trade bot data. This an optional step and doesn't impact trading, so don't throw an exception on failure
|
||||
try {
|
||||
LOGGER.info("About to backup trade bot data...");
|
||||
repository.exportNodeLocalData();
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, additional);
|
||||
} catch (DataException e) {
|
||||
LOGGER.info(String.format("Repository issue when exporting trade bot data: %s", e.getMessage()));
|
||||
}
|
||||
|
||||
861
src/main/java/org/qortal/crosschain/DogecoinACCTv2.java
Normal file
861
src/main/java/org/qortal/crosschain/DogecoinACCTv2.java
Normal file
@ -0,0 +1,861 @@
|
||||
package org.qortal.crosschain;
|
||||
|
||||
import com.google.common.hash.HashCode;
|
||||
import com.google.common.primitives.Bytes;
|
||||
import org.apache.logging.log4j.LogManager;
|
||||
import org.apache.logging.log4j.Logger;
|
||||
import org.ciyam.at.*;
|
||||
import org.qortal.account.Account;
|
||||
import org.qortal.asset.Asset;
|
||||
import org.qortal.at.QortalFunctionCode;
|
||||
import org.qortal.crypto.Crypto;
|
||||
import org.qortal.data.at.ATData;
|
||||
import org.qortal.data.at.ATStateData;
|
||||
import org.qortal.data.crosschain.CrossChainTradeData;
|
||||
import org.qortal.data.transaction.MessageTransactionData;
|
||||
import org.qortal.repository.DataException;
|
||||
import org.qortal.repository.Repository;
|
||||
import org.qortal.utils.Base58;
|
||||
import org.qortal.utils.BitTwiddling;
|
||||
|
||||
import java.nio.ByteBuffer;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
|
||||
import static org.ciyam.at.OpCode.calcOffset;
|
||||
|
||||
/**
|
||||
* Cross-chain trade AT
|
||||
*
|
||||
* <p>
|
||||
* <ul>
|
||||
* <li>Bob generates Dogecoin & Qortal 'trade' keys
|
||||
* <ul>
|
||||
* <li>private key required to sign P2SH redeem tx</li>
|
||||
* <li>private key could be used to create 'secret' (e.g. double-SHA256)</li>
|
||||
* <li>encrypted private key could be stored in Qortal AT for access by Bob from any node</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob deploys Qortal AT
|
||||
* <ul>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Alice finds Qortal AT and wants to trade
|
||||
* <ul>
|
||||
* <li>Alice generates Dogecoin & Qortal 'trade' keys</li>
|
||||
* <li>Alice funds Dogecoin P2SH-A</li>
|
||||
* <li>Alice sends 'offer' MESSAGE to Bob from her Qortal trade address, containing:
|
||||
* <ul>
|
||||
* <li>hash-of-secret-A</li>
|
||||
* <li>her 'trade' Dogecoin PKH</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob receives "offer" MESSAGE
|
||||
* <ul>
|
||||
* <li>Checks Alice's P2SH-A</li>
|
||||
* <li>Sends 'trade' MESSAGE to Qortal AT from his trade address, containing:
|
||||
* <ul>
|
||||
* <li>Alice's trade Qortal address</li>
|
||||
* <li>Alice's trade Dogecoin PKH</li>
|
||||
* <li>hash-of-secret-A</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Alice checks Qortal AT to confirm it's locked to her
|
||||
* <ul>
|
||||
* <li>Alice sends 'redeem' MESSAGE to Qortal AT from her trade address, containing:
|
||||
* <ul>
|
||||
* <li>secret-A</li>
|
||||
* <li>Qortal receiving address of her chosing</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>AT's QORT funds are sent to Qortal receiving address</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob checks AT, extracts secret-A
|
||||
* <ul>
|
||||
* <li>Bob redeems P2SH-A using his Dogecoin trade key and secret-A</li>
|
||||
* <li>P2SH-A DOGE funds end up at Dogecoin address determined by redeem transaction output(s)</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
*/
|
||||
public class DogecoinACCTv2 implements ACCT {
|
||||
|
||||
private static final Logger LOGGER = LogManager.getLogger(DogecoinACCTv2.class);
|
||||
|
||||
public static final String NAME = DogecoinACCTv2.class.getSimpleName();
|
||||
public static final byte[] CODE_BYTES_HASH = HashCode.fromString("6fff38d6eeb06568a9c879c5628527730319844aa0de53f5f4ffab5506efe885").asBytes(); // SHA256 of AT code bytes
|
||||
|
||||
public static final int SECRET_LENGTH = 32;
|
||||
|
||||
/** <b>Value</b> offset into AT segment where 'mode' variable (long) is stored. (Multiply by MachineState.VALUE_SIZE for byte offset). */
|
||||
private static final int MODE_VALUE_OFFSET = 61;
|
||||
/** <b>Byte</b> offset into AT state data where 'mode' variable (long) is stored. */
|
||||
public static final int MODE_BYTE_OFFSET = MachineState.HEADER_LENGTH + (MODE_VALUE_OFFSET * MachineState.VALUE_SIZE);
|
||||
|
||||
public static class OfferMessageData {
|
||||
public byte[] partnerDogecoinPKH;
|
||||
public byte[] hashOfSecretA;
|
||||
public long lockTimeA;
|
||||
}
|
||||
public static final int OFFER_MESSAGE_LENGTH = 20 /*partnerDogecoinPKH*/ + 20 /*hashOfSecretA*/ + 8 /*lockTimeA*/;
|
||||
public static final int TRADE_MESSAGE_LENGTH = 32 /*partner's Qortal trade address (padded from 25 to 32)*/
|
||||
+ 24 /*partner's Dogecoin PKH (padded from 20 to 24)*/
|
||||
+ 8 /*AT trade timeout (minutes)*/
|
||||
+ 24 /*hash of secret-A (padded from 20 to 24)*/
|
||||
+ 8 /*lockTimeA*/;
|
||||
public static final int REDEEM_MESSAGE_LENGTH = 32 /*secret-A*/ + 32 /*partner's Qortal receiving address padded from 25 to 32*/;
|
||||
public static final int CANCEL_MESSAGE_LENGTH = 32 /*AT creator's Qortal address*/;
|
||||
|
||||
private static DogecoinACCTv2 instance;
|
||||
|
||||
private DogecoinACCTv2() {
|
||||
}
|
||||
|
||||
public static synchronized DogecoinACCTv2 getInstance() {
|
||||
if (instance == null)
|
||||
instance = new DogecoinACCTv2();
|
||||
|
||||
return instance;
|
||||
}
|
||||
|
||||
@Override
|
||||
public byte[] getCodeBytesHash() {
|
||||
return CODE_BYTES_HASH;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int getModeByteOffset() {
|
||||
return MODE_BYTE_OFFSET;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ForeignBlockchain getBlockchain() {
|
||||
return Dogecoin.getInstance();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns Qortal AT creation bytes for cross-chain trading AT.
|
||||
* <p>
|
||||
* <tt>tradeTimeout</tt> (minutes) is the time window for the trade partner to send the
|
||||
* 32-byte secret to the AT, before the AT automatically refunds the AT's creator.
|
||||
*
|
||||
* @param creatorTradeAddress AT creator's trade Qortal address
|
||||
* @param dogecoinPublicKeyHash 20-byte HASH160 of creator's trade Dogecoin public key
|
||||
* @param qortAmount how much QORT to pay trade partner if they send correct 32-byte secrets to AT
|
||||
* @param dogecoinAmount how much DOGE the AT creator is expecting to trade
|
||||
* @param tradeTimeout suggested timeout for entire trade
|
||||
*/
|
||||
public static byte[] buildQortalAT(String creatorTradeAddress, byte[] dogecoinPublicKeyHash, long qortAmount, long dogecoinAmount, int tradeTimeout) {
|
||||
if (dogecoinPublicKeyHash.length != 20)
|
||||
throw new IllegalArgumentException("Dogecoin public key hash should be 20 bytes");
|
||||
|
||||
// Labels for data segment addresses
|
||||
int addrCounter = 0;
|
||||
|
||||
// Constants (with corresponding dataByteBuffer.put*() calls below)
|
||||
|
||||
final int addrCreatorTradeAddress1 = addrCounter++;
|
||||
final int addrCreatorTradeAddress2 = addrCounter++;
|
||||
final int addrCreatorTradeAddress3 = addrCounter++;
|
||||
final int addrCreatorTradeAddress4 = addrCounter++;
|
||||
|
||||
final int addrDogecoinPublicKeyHash = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrQortAmount = addrCounter++;
|
||||
final int addrDogecoinAmount = addrCounter++;
|
||||
final int addrTradeTimeout = addrCounter++;
|
||||
|
||||
final int addrMessageTxnType = addrCounter++;
|
||||
final int addrExpectedTradeMessageLength = addrCounter++;
|
||||
final int addrExpectedRedeemMessageLength = addrCounter++;
|
||||
|
||||
final int addrCreatorAddressPointer = addrCounter++;
|
||||
final int addrQortalPartnerAddressPointer = addrCounter++;
|
||||
final int addrMessageSenderPointer = addrCounter++;
|
||||
|
||||
final int addrTradeMessagePartnerDogecoinPKHOffset = addrCounter++;
|
||||
final int addrPartnerDogecoinPKHPointer = addrCounter++;
|
||||
final int addrTradeMessageHashOfSecretAOffset = addrCounter++;
|
||||
final int addrHashOfSecretAPointer = addrCounter++;
|
||||
|
||||
final int addrRedeemMessageReceivingAddressOffset = addrCounter++;
|
||||
|
||||
final int addrMessageDataPointer = addrCounter++;
|
||||
final int addrMessageDataLength = addrCounter++;
|
||||
|
||||
final int addrPartnerReceivingAddressPointer = addrCounter++;
|
||||
|
||||
final int addrEndOfConstants = addrCounter;
|
||||
|
||||
// Variables
|
||||
|
||||
final int addrCreatorAddress1 = addrCounter++;
|
||||
final int addrCreatorAddress2 = addrCounter++;
|
||||
final int addrCreatorAddress3 = addrCounter++;
|
||||
final int addrCreatorAddress4 = addrCounter++;
|
||||
|
||||
final int addrQortalPartnerAddress1 = addrCounter++;
|
||||
final int addrQortalPartnerAddress2 = addrCounter++;
|
||||
final int addrQortalPartnerAddress3 = addrCounter++;
|
||||
final int addrQortalPartnerAddress4 = addrCounter++;
|
||||
|
||||
final int addrLockTimeA = addrCounter++;
|
||||
final int addrRefundTimeout = addrCounter++;
|
||||
final int addrRefundTimestamp = addrCounter++;
|
||||
final int addrLastTxnTimestamp = addrCounter++;
|
||||
final int addrBlockTimestamp = addrCounter++;
|
||||
final int addrTxnType = addrCounter++;
|
||||
final int addrResult = addrCounter++;
|
||||
|
||||
final int addrMessageSender1 = addrCounter++;
|
||||
final int addrMessageSender2 = addrCounter++;
|
||||
final int addrMessageSender3 = addrCounter++;
|
||||
final int addrMessageSender4 = addrCounter++;
|
||||
|
||||
final int addrMessageLength = addrCounter++;
|
||||
|
||||
final int addrMessageData = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrHashOfSecretA = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrPartnerDogecoinPKH = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrPartnerReceivingAddress = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrMode = addrCounter++;
|
||||
assert addrMode == MODE_VALUE_OFFSET : String.format("addrMode %d does not match MODE_VALUE_OFFSET %d", addrMode, MODE_VALUE_OFFSET);
|
||||
|
||||
// Data segment
|
||||
ByteBuffer dataByteBuffer = ByteBuffer.allocate(addrCounter * MachineState.VALUE_SIZE);
|
||||
|
||||
// AT creator's trade Qortal address, decoded from Base58
|
||||
assert dataByteBuffer.position() == addrCreatorTradeAddress1 * MachineState.VALUE_SIZE : "addrCreatorTradeAddress1 incorrect";
|
||||
byte[] creatorTradeAddressBytes = Base58.decode(creatorTradeAddress);
|
||||
dataByteBuffer.put(Bytes.ensureCapacity(creatorTradeAddressBytes, 32, 0));
|
||||
|
||||
// Dogecoin public key hash
|
||||
assert dataByteBuffer.position() == addrDogecoinPublicKeyHash * MachineState.VALUE_SIZE : "addrDogecoinPublicKeyHash incorrect";
|
||||
dataByteBuffer.put(Bytes.ensureCapacity(dogecoinPublicKeyHash, 32, 0));
|
||||
|
||||
// Redeem Qort amount
|
||||
assert dataByteBuffer.position() == addrQortAmount * MachineState.VALUE_SIZE : "addrQortAmount incorrect";
|
||||
dataByteBuffer.putLong(qortAmount);
|
||||
|
||||
// Expected Dogecoin amount
|
||||
assert dataByteBuffer.position() == addrDogecoinAmount * MachineState.VALUE_SIZE : "addrDogecoinAmount incorrect";
|
||||
dataByteBuffer.putLong(dogecoinAmount);
|
||||
|
||||
// Suggested trade timeout (minutes)
|
||||
assert dataByteBuffer.position() == addrTradeTimeout * MachineState.VALUE_SIZE : "addrTradeTimeout incorrect";
|
||||
dataByteBuffer.putLong(tradeTimeout);
|
||||
|
||||
// We're only interested in MESSAGE transactions
|
||||
assert dataByteBuffer.position() == addrMessageTxnType * MachineState.VALUE_SIZE : "addrMessageTxnType incorrect";
|
||||
dataByteBuffer.putLong(API.ATTransactionType.MESSAGE.value);
|
||||
|
||||
// Expected length of 'trade' MESSAGE data from AT creator
|
||||
assert dataByteBuffer.position() == addrExpectedTradeMessageLength * MachineState.VALUE_SIZE : "addrExpectedTradeMessageLength incorrect";
|
||||
dataByteBuffer.putLong(TRADE_MESSAGE_LENGTH);
|
||||
|
||||
// Expected length of 'redeem' MESSAGE data from trade partner
|
||||
assert dataByteBuffer.position() == addrExpectedRedeemMessageLength * MachineState.VALUE_SIZE : "addrExpectedRedeemMessageLength incorrect";
|
||||
dataByteBuffer.putLong(REDEEM_MESSAGE_LENGTH);
|
||||
|
||||
// Index into data segment of AT creator's address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrCreatorAddressPointer * MachineState.VALUE_SIZE : "addrCreatorAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrCreatorAddress1);
|
||||
|
||||
// Index into data segment of partner's Qortal address, used by SET_B_IND
|
||||
assert dataByteBuffer.position() == addrQortalPartnerAddressPointer * MachineState.VALUE_SIZE : "addrQortalPartnerAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrQortalPartnerAddress1);
|
||||
|
||||
// Index into data segment of (temporary) transaction's sender's address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrMessageSenderPointer * MachineState.VALUE_SIZE : "addrMessageSenderPointer incorrect";
|
||||
dataByteBuffer.putLong(addrMessageSender1);
|
||||
|
||||
// Offset into 'trade' MESSAGE data payload for extracting partner's Dogecoin PKH
|
||||
assert dataByteBuffer.position() == addrTradeMessagePartnerDogecoinPKHOffset * MachineState.VALUE_SIZE : "addrTradeMessagePartnerDogecoinPKHOffset incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Index into data segment of partner's Dogecoin PKH, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrPartnerDogecoinPKHPointer * MachineState.VALUE_SIZE : "addrPartnerDogecoinPKHPointer incorrect";
|
||||
dataByteBuffer.putLong(addrPartnerDogecoinPKH);
|
||||
|
||||
// Offset into 'trade' MESSAGE data payload for extracting hash-of-secret-A
|
||||
assert dataByteBuffer.position() == addrTradeMessageHashOfSecretAOffset * MachineState.VALUE_SIZE : "addrTradeMessageHashOfSecretAOffset incorrect";
|
||||
dataByteBuffer.putLong(64L);
|
||||
|
||||
// Index into data segment to hash of secret A, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrHashOfSecretAPointer * MachineState.VALUE_SIZE : "addrHashOfSecretAPointer incorrect";
|
||||
dataByteBuffer.putLong(addrHashOfSecretA);
|
||||
|
||||
// Offset into 'redeem' MESSAGE data payload for extracting Qortal receiving address
|
||||
assert dataByteBuffer.position() == addrRedeemMessageReceivingAddressOffset * MachineState.VALUE_SIZE : "addrRedeemMessageReceivingAddressOffset incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Source location and length for hashing any passed secret
|
||||
assert dataByteBuffer.position() == addrMessageDataPointer * MachineState.VALUE_SIZE : "addrMessageDataPointer incorrect";
|
||||
dataByteBuffer.putLong(addrMessageData);
|
||||
assert dataByteBuffer.position() == addrMessageDataLength * MachineState.VALUE_SIZE : "addrMessageDataLength incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Pointer into data segment of where to save partner's receiving Qortal address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrPartnerReceivingAddressPointer * MachineState.VALUE_SIZE : "addrPartnerReceivingAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrPartnerReceivingAddress);
|
||||
|
||||
assert dataByteBuffer.position() == addrEndOfConstants * MachineState.VALUE_SIZE : "dataByteBuffer position not at end of constants";
|
||||
|
||||
// Code labels
|
||||
Integer labelRefund = null;
|
||||
|
||||
Integer labelTradeTxnLoop = null;
|
||||
Integer labelCheckTradeTxn = null;
|
||||
Integer labelCheckCancelTxn = null;
|
||||
Integer labelNotTradeNorCancelTxn = null;
|
||||
Integer labelCheckNonRefundTradeTxn = null;
|
||||
Integer labelTradeTxnExtract = null;
|
||||
Integer labelRedeemTxnLoop = null;
|
||||
Integer labelCheckRedeemTxn = null;
|
||||
Integer labelCheckRedeemTxnSender = null;
|
||||
Integer labelPayout = null;
|
||||
|
||||
ByteBuffer codeByteBuffer = ByteBuffer.allocate(768);
|
||||
|
||||
// Two-pass version
|
||||
for (int pass = 0; pass < 2; ++pass) {
|
||||
codeByteBuffer.clear();
|
||||
|
||||
try {
|
||||
/* Initialization */
|
||||
|
||||
/* NOP - to ensure DOGECOIN ACCT is unique */
|
||||
codeByteBuffer.put(OpCode.NOP.compile());
|
||||
|
||||
// Use AT creation 'timestamp' as starting point for finding transactions sent to AT
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_CREATION_TIMESTAMP, addrLastTxnTimestamp));
|
||||
|
||||
// Load B register with AT creator's address so we can save it into addrCreatorAddress1-4
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_CREATOR_INTO_B));
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrCreatorAddressPointer));
|
||||
|
||||
// Set restart position to after this opcode
|
||||
codeByteBuffer.put(OpCode.SET_PCS.compile());
|
||||
|
||||
/* Loop, waiting for message from AT creator's trade address containing trade partner details, or AT owner's address to cancel offer */
|
||||
|
||||
/* Transaction processing loop */
|
||||
labelTradeTxnLoop = codeByteBuffer.position();
|
||||
|
||||
/* Sleep until message arrives */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.SLEEP_UNTIL_MESSAGE.value, addrLastTxnTimestamp));
|
||||
|
||||
// Find next transaction (if any) to this AT since the last one (referenced by addrLastTxnTimestamp)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PUT_TX_AFTER_TIMESTAMP_INTO_A, addrLastTxnTimestamp));
|
||||
// If no transaction found, A will be zero. If A is zero, set addrResult to 1, otherwise 0.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.CHECK_A_IS_ZERO, addrResult));
|
||||
// If addrResult is zero (i.e. A is non-zero, transaction was found) then go check transaction
|
||||
codeByteBuffer.put(OpCode.BZR_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelCheckTradeTxn)));
|
||||
// Stop and wait for next block
|
||||
codeByteBuffer.put(OpCode.STP_IMD.compile());
|
||||
|
||||
/* Check transaction */
|
||||
labelCheckTradeTxn = codeByteBuffer.position();
|
||||
|
||||
// Update our 'last found transaction's timestamp' using 'timestamp' from transaction
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TIMESTAMP_FROM_TX_IN_A, addrLastTxnTimestamp));
|
||||
// Extract transaction type (message/payment) from transaction and save type in addrTxnType
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TYPE_FROM_TX_IN_A, addrTxnType));
|
||||
// If transaction type is not MESSAGE type then go look for another transaction
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrTxnType, addrMessageTxnType, calcOffset(codeByteBuffer, labelTradeTxnLoop)));
|
||||
|
||||
/* Check transaction's sender. We're expecting AT creator's trade address for 'trade' message, or AT creator's own address for 'cancel' message. */
|
||||
|
||||
// Extract sender address from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_ADDRESS_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageSender1 (as pointed to by addrMessageSenderPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageSenderPointer));
|
||||
// Compare each part of message sender's address with AT creator's trade address. If they don't match, check for cancel situation.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrCreatorTradeAddress1, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrCreatorTradeAddress2, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrCreatorTradeAddress3, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrCreatorTradeAddress4, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
// Message sender's address matches AT creator's trade address so go process 'trade' message
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelCheckNonRefundTradeTxn == null ? 0 : labelCheckNonRefundTradeTxn));
|
||||
|
||||
/* Checking message sender for possible cancel message */
|
||||
labelCheckCancelTxn = codeByteBuffer.position();
|
||||
|
||||
// Compare each part of message sender's address with AT creator's address. If they don't match, look for another transaction.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrCreatorAddress1, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrCreatorAddress2, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrCreatorAddress3, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrCreatorAddress4, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
// Partner address is AT creator's address, so cancel offer and finish.
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.CANCELLED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
|
||||
/* Not trade nor cancel message */
|
||||
labelNotTradeNorCancelTxn = codeByteBuffer.position();
|
||||
|
||||
// Loop to find another transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelTradeTxnLoop == null ? 0 : labelTradeTxnLoop));
|
||||
|
||||
/* Possible switch-to-trade-mode message */
|
||||
labelCheckNonRefundTradeTxn = codeByteBuffer.position();
|
||||
|
||||
// Check 'trade' message we received has expected number of message bytes
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(QortalFunctionCode.GET_MESSAGE_LENGTH_FROM_TX_IN_A.value, addrMessageLength));
|
||||
// If message length matches, branch to info extraction code
|
||||
codeByteBuffer.put(OpCode.BEQ_DAT.compile(addrMessageLength, addrExpectedTradeMessageLength, calcOffset(codeByteBuffer, labelTradeTxnExtract)));
|
||||
// Message length didn't match - go back to finding another 'trade' MESSAGE transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelTradeTxnLoop == null ? 0 : labelTradeTxnLoop));
|
||||
|
||||
/* Extracting info from 'trade' MESSAGE transaction */
|
||||
labelTradeTxnExtract = codeByteBuffer.position();
|
||||
|
||||
// Extract message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_MESSAGE_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrQortalPartnerAddress1 (as pointed to by addrQortalPartnerAddressPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrQortalPartnerAddressPointer));
|
||||
|
||||
// Extract trade partner's Dogecoin public key hash (PKH) from message into B
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrTradeMessagePartnerDogecoinPKHOffset));
|
||||
// Store partner's Dogecoin PKH (we only really use values from B1-B3)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrPartnerDogecoinPKHPointer));
|
||||
// Extract AT trade timeout (minutes) (from B4)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_B4, addrRefundTimeout));
|
||||
|
||||
// Grab next 32 bytes
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrTradeMessageHashOfSecretAOffset));
|
||||
|
||||
// Extract hash-of-secret-A (we only really use values from B1-B3)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrHashOfSecretAPointer));
|
||||
// Extract lockTime-A (from B4)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_B4, addrLockTimeA));
|
||||
|
||||
// Calculate trade timeout refund 'timestamp' by adding addrRefundTimeout minutes to this transaction's 'timestamp', then save into addrRefundTimestamp
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET_DAT_2.compile(FunctionCode.ADD_MINUTES_TO_TIMESTAMP, addrRefundTimestamp, addrLastTxnTimestamp, addrRefundTimeout));
|
||||
|
||||
/* We are in 'trade mode' */
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.TRADING.value));
|
||||
|
||||
// Set restart position to after this opcode
|
||||
codeByteBuffer.put(OpCode.SET_PCS.compile());
|
||||
|
||||
/* Loop, waiting for trade timeout or 'redeem' MESSAGE from Qortal trade partner */
|
||||
|
||||
// Fetch current block 'timestamp'
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_BLOCK_TIMESTAMP, addrBlockTimestamp));
|
||||
// If we're not past refund 'timestamp' then look for next transaction
|
||||
codeByteBuffer.put(OpCode.BLT_DAT.compile(addrBlockTimestamp, addrRefundTimestamp, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
// We're past refund 'timestamp' so go refund everything back to AT creator
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRefund == null ? 0 : labelRefund));
|
||||
|
||||
/* Transaction processing loop */
|
||||
labelRedeemTxnLoop = codeByteBuffer.position();
|
||||
|
||||
/* Sleep until message arrives */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.SLEEP_UNTIL_MESSAGE.value, addrLastTxnTimestamp));
|
||||
|
||||
// Find next transaction to this AT since the last one (if any)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PUT_TX_AFTER_TIMESTAMP_INTO_A, addrLastTxnTimestamp));
|
||||
// If no transaction found, A will be zero. If A is zero, set addrComparator to 1, otherwise 0.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.CHECK_A_IS_ZERO, addrResult));
|
||||
// If addrResult is zero (i.e. A is non-zero, transaction was found) then go check transaction
|
||||
codeByteBuffer.put(OpCode.BZR_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelCheckRedeemTxn)));
|
||||
// Stop and wait for next block
|
||||
codeByteBuffer.put(OpCode.STP_IMD.compile());
|
||||
|
||||
/* Check transaction */
|
||||
labelCheckRedeemTxn = codeByteBuffer.position();
|
||||
|
||||
// Update our 'last found transaction's timestamp' using 'timestamp' from transaction
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TIMESTAMP_FROM_TX_IN_A, addrLastTxnTimestamp));
|
||||
// Extract transaction type (message/payment) from transaction and save type in addrTxnType
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TYPE_FROM_TX_IN_A, addrTxnType));
|
||||
// If transaction type is not MESSAGE type then go look for another transaction
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrTxnType, addrMessageTxnType, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
|
||||
/* Check message payload length */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(QortalFunctionCode.GET_MESSAGE_LENGTH_FROM_TX_IN_A.value, addrMessageLength));
|
||||
// If message length matches, branch to sender checking code
|
||||
codeByteBuffer.put(OpCode.BEQ_DAT.compile(addrMessageLength, addrExpectedRedeemMessageLength, calcOffset(codeByteBuffer, labelCheckRedeemTxnSender)));
|
||||
// Message length didn't match - go back to finding another 'redeem' MESSAGE transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRedeemTxnLoop == null ? 0 : labelRedeemTxnLoop));
|
||||
|
||||
/* Check transaction's sender */
|
||||
labelCheckRedeemTxnSender = codeByteBuffer.position();
|
||||
|
||||
// Extract sender address from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_ADDRESS_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageSender1 (as pointed to by addrMessageSenderPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageSenderPointer));
|
||||
// Compare each part of transaction's sender's address with expected address. If they don't match, look for another transaction.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrQortalPartnerAddress1, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrQortalPartnerAddress2, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrQortalPartnerAddress3, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrQortalPartnerAddress4, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
|
||||
/* Check 'secret-A' in transaction's message */
|
||||
|
||||
// Extract secret-A from first 32 bytes of message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_MESSAGE_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageData (as pointed to by addrMessageDataPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageDataPointer));
|
||||
// Load B register with expected hash result (as pointed to by addrHashOfSecretAPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.SET_B_IND, addrHashOfSecretAPointer));
|
||||
// Perform HASH160 using source data at addrMessageData. (Location and length specified via addrMessageDataPointer and addrMessageDataLength).
|
||||
// Save the equality result (1 if they match, 0 otherwise) into addrResult.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET_DAT_2.compile(FunctionCode.CHECK_HASH160_WITH_B, addrResult, addrMessageDataPointer, addrMessageDataLength));
|
||||
// If hashes don't match, addrResult will be zero so go find another transaction
|
||||
codeByteBuffer.put(OpCode.BNZ_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelPayout)));
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRedeemTxnLoop == null ? 0 : labelRedeemTxnLoop));
|
||||
|
||||
/* Success! Pay arranged amount to receiving address */
|
||||
labelPayout = codeByteBuffer.position();
|
||||
|
||||
// Extract Qortal receiving address from next 32 bytes of message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrRedeemMessageReceivingAddressOffset));
|
||||
// Save B register into data segment starting at addrPartnerReceivingAddress (as pointed to by addrPartnerReceivingAddressPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrPartnerReceivingAddressPointer));
|
||||
// Pay AT's balance to receiving address
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PAY_TO_ADDRESS_IN_B, addrQortAmount));
|
||||
// Set redeemed mode
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.REDEEMED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
|
||||
// Fall-through to refunding any remaining balance back to AT creator
|
||||
|
||||
/* Refund balance back to AT creator */
|
||||
labelRefund = codeByteBuffer.position();
|
||||
|
||||
// Set refunded mode
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.REFUNDED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
} catch (CompilationException e) {
|
||||
throw new IllegalStateException("Unable to compile DOGE-QORT ACCT?", e);
|
||||
}
|
||||
}
|
||||
|
||||
codeByteBuffer.flip();
|
||||
|
||||
byte[] codeBytes = new byte[codeByteBuffer.limit()];
|
||||
codeByteBuffer.get(codeBytes);
|
||||
|
||||
assert Arrays.equals(Crypto.digest(codeBytes), DogecoinACCTv2.CODE_BYTES_HASH)
|
||||
: String.format("BTCACCT.CODE_BYTES_HASH mismatch: expected %s, actual %s", HashCode.fromBytes(CODE_BYTES_HASH), HashCode.fromBytes(Crypto.digest(codeBytes)));
|
||||
|
||||
final short ciyamAtVersion = 2;
|
||||
final short numCallStackPages = 0;
|
||||
final short numUserStackPages = 0;
|
||||
final long minActivationAmount = 0L;
|
||||
|
||||
return MachineState.toCreationBytes(ciyamAtVersion, codeBytes, dataByteBuffer.array(), numCallStackPages, numUserStackPages, minActivationAmount);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
@Override
|
||||
public CrossChainTradeData populateTradeData(Repository repository, ATData atData) throws DataException {
|
||||
ATStateData atStateData = repository.getATRepository().getLatestATState(atData.getATAddress());
|
||||
return populateTradeData(repository, atData.getCreatorPublicKey(), atData.getCreation(), atStateData);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
@Override
|
||||
public CrossChainTradeData populateTradeData(Repository repository, ATStateData atStateData) throws DataException {
|
||||
ATData atData = repository.getATRepository().fromATAddress(atStateData.getATAddress());
|
||||
return populateTradeData(repository, atData.getCreatorPublicKey(), atData.getCreation(), atStateData);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
public CrossChainTradeData populateTradeData(Repository repository, byte[] creatorPublicKey, long creationTimestamp, ATStateData atStateData) throws DataException {
|
||||
byte[] addressBytes = new byte[25]; // for general use
|
||||
String atAddress = atStateData.getATAddress();
|
||||
|
||||
CrossChainTradeData tradeData = new CrossChainTradeData();
|
||||
|
||||
tradeData.foreignBlockchain = SupportedBlockchain.DOGECOIN.name();
|
||||
tradeData.acctName = NAME;
|
||||
|
||||
tradeData.qortalAtAddress = atAddress;
|
||||
tradeData.qortalCreator = Crypto.toAddress(creatorPublicKey);
|
||||
tradeData.creationTimestamp = creationTimestamp;
|
||||
|
||||
Account atAccount = new Account(repository, atAddress);
|
||||
tradeData.qortBalance = atAccount.getConfirmedBalance(Asset.QORT);
|
||||
|
||||
byte[] stateData = atStateData.getStateData();
|
||||
ByteBuffer dataByteBuffer = ByteBuffer.wrap(stateData);
|
||||
dataByteBuffer.position(MachineState.HEADER_LENGTH);
|
||||
|
||||
/* Constants */
|
||||
|
||||
// Skip creator's trade address
|
||||
dataByteBuffer.get(addressBytes);
|
||||
tradeData.qortalCreatorTradeAddress = Base58.encode(addressBytes);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - addressBytes.length);
|
||||
|
||||
// Creator's Dogecoin/foreign public key hash
|
||||
tradeData.creatorForeignPKH = new byte[20];
|
||||
dataByteBuffer.get(tradeData.creatorForeignPKH);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - tradeData.creatorForeignPKH.length); // skip to 32 bytes
|
||||
|
||||
// We don't use secret-B
|
||||
tradeData.hashOfSecretB = null;
|
||||
|
||||
// Redeem payout
|
||||
tradeData.qortAmount = dataByteBuffer.getLong();
|
||||
|
||||
// Expected DOGE amount
|
||||
tradeData.expectedForeignAmount = dataByteBuffer.getLong();
|
||||
|
||||
// Trade timeout
|
||||
tradeData.tradeTimeout = (int) dataByteBuffer.getLong();
|
||||
|
||||
// Skip MESSAGE transaction type
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip expected 'trade' message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip expected 'redeem' message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to creator's address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's Qortal trade address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to message sender
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'trade' message data offset for partner's Dogecoin PKH
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's Dogecoin PKH
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'trade' message data offset for hash-of-secret-A
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to hash-of-secret-A
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'redeem' message data offset for partner's Qortal receiving address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to message data
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip message data length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's receiving address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
/* End of constants / begin variables */
|
||||
|
||||
// Skip AT creator's address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Partner's trade address (if present)
|
||||
dataByteBuffer.get(addressBytes);
|
||||
String qortalRecipient = Base58.encode(addressBytes);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - addressBytes.length);
|
||||
|
||||
// Potential lockTimeA (if in trade mode)
|
||||
int lockTimeA = (int) dataByteBuffer.getLong();
|
||||
|
||||
// AT refund timeout (probably only useful for debugging)
|
||||
int refundTimeout = (int) dataByteBuffer.getLong();
|
||||
|
||||
// Trade-mode refund timestamp (AT 'timestamp' converted to Qortal block height)
|
||||
long tradeRefundTimestamp = dataByteBuffer.getLong();
|
||||
|
||||
// Skip last transaction timestamp
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip block timestamp
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip transaction type
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary result
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary message sender
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Skip message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary message data
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Potential hash160 of secret A
|
||||
byte[] hashOfSecretA = new byte[20];
|
||||
dataByteBuffer.get(hashOfSecretA);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - hashOfSecretA.length); // skip to 32 bytes
|
||||
|
||||
// Potential partner's Dogecoin PKH
|
||||
byte[] partnerDogecoinPKH = new byte[20];
|
||||
dataByteBuffer.get(partnerDogecoinPKH);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - partnerDogecoinPKH.length); // skip to 32 bytes
|
||||
|
||||
// Partner's receiving address (if present)
|
||||
byte[] partnerReceivingAddress = new byte[25];
|
||||
dataByteBuffer.get(partnerReceivingAddress);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - partnerReceivingAddress.length); // skip to 32 bytes
|
||||
|
||||
// Trade AT's 'mode'
|
||||
long modeValue = dataByteBuffer.getLong();
|
||||
AcctMode mode = AcctMode.valueOf((int) (modeValue & 0xffL));
|
||||
|
||||
/* End of variables */
|
||||
|
||||
if (mode != null && mode != AcctMode.OFFERING) {
|
||||
tradeData.mode = mode;
|
||||
tradeData.refundTimeout = refundTimeout;
|
||||
tradeData.tradeRefundHeight = new Timestamp(tradeRefundTimestamp).blockHeight;
|
||||
tradeData.qortalPartnerAddress = qortalRecipient;
|
||||
tradeData.hashOfSecretA = hashOfSecretA;
|
||||
tradeData.partnerForeignPKH = partnerDogecoinPKH;
|
||||
tradeData.lockTimeA = lockTimeA;
|
||||
|
||||
if (mode == AcctMode.REDEEMED)
|
||||
tradeData.qortalPartnerReceivingAddress = Base58.encode(partnerReceivingAddress);
|
||||
} else {
|
||||
tradeData.mode = AcctMode.OFFERING;
|
||||
}
|
||||
|
||||
tradeData.duplicateDeprecated();
|
||||
|
||||
return tradeData;
|
||||
}
|
||||
|
||||
/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
|
||||
public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
|
||||
byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
|
||||
return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
|
||||
}
|
||||
|
||||
/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
|
||||
public static OfferMessageData extractOfferMessageData(byte[] messageData) {
|
||||
if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)
|
||||
return null;
|
||||
|
||||
OfferMessageData offerMessageData = new OfferMessageData();
|
||||
offerMessageData.partnerDogecoinPKH = Arrays.copyOfRange(messageData, 0, 20);
|
||||
offerMessageData.hashOfSecretA = Arrays.copyOfRange(messageData, 20, 40);
|
||||
offerMessageData.lockTimeA = BitTwiddling.longFromBEBytes(messageData, 40);
|
||||
|
||||
return offerMessageData;
|
||||
}
|
||||
|
||||
/** Returns 'trade' MESSAGE payload for AT creator to send to AT. */
|
||||
public static byte[] buildTradeMessage(String partnerQortalTradeAddress, byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA, int refundTimeout) {
|
||||
byte[] data = new byte[TRADE_MESSAGE_LENGTH];
|
||||
byte[] partnerQortalAddressBytes = Base58.decode(partnerQortalTradeAddress);
|
||||
byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
|
||||
byte[] refundTimeoutBytes = BitTwiddling.toBEByteArray((long) refundTimeout);
|
||||
|
||||
System.arraycopy(partnerQortalAddressBytes, 0, data, 0, partnerQortalAddressBytes.length);
|
||||
System.arraycopy(partnerBitcoinPKH, 0, data, 32, partnerBitcoinPKH.length);
|
||||
System.arraycopy(refundTimeoutBytes, 0, data, 56, refundTimeoutBytes.length);
|
||||
System.arraycopy(hashOfSecretA, 0, data, 64, hashOfSecretA.length);
|
||||
System.arraycopy(lockTimeABytes, 0, data, 88, lockTimeABytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns 'cancel' MESSAGE payload for AT creator to cancel trade AT. */
|
||||
@Override
|
||||
public byte[] buildCancelMessage(String creatorQortalAddress) {
|
||||
byte[] data = new byte[CANCEL_MESSAGE_LENGTH];
|
||||
byte[] creatorQortalAddressBytes = Base58.decode(creatorQortalAddress);
|
||||
|
||||
System.arraycopy(creatorQortalAddressBytes, 0, data, 0, creatorQortalAddressBytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns 'redeem' MESSAGE payload for trade partner to send to AT. */
|
||||
public static byte[] buildRedeemMessage(byte[] secretA, String qortalReceivingAddress) {
|
||||
byte[] data = new byte[REDEEM_MESSAGE_LENGTH];
|
||||
byte[] qortalReceivingAddressBytes = Base58.decode(qortalReceivingAddress);
|
||||
|
||||
System.arraycopy(secretA, 0, data, 0, secretA.length);
|
||||
System.arraycopy(qortalReceivingAddressBytes, 0, data, 32, qortalReceivingAddressBytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns refund timeout (minutes) based on trade partner's 'offer' MESSAGE timestamp and P2SH-A locktime. */
|
||||
public static int calcRefundTimeout(long offerMessageTimestamp, int lockTimeA) {
|
||||
// refund should be triggered halfway between offerMessageTimestamp and lockTimeA
|
||||
return (int) ((lockTimeA - (offerMessageTimestamp / 1000L)) / 2L / 60L);
|
||||
}
|
||||
|
||||
@Override
|
||||
public byte[] findSecretA(Repository repository, CrossChainTradeData crossChainTradeData) throws DataException {
|
||||
String atAddress = crossChainTradeData.qortalAtAddress;
|
||||
String redeemerAddress = crossChainTradeData.qortalPartnerAddress;
|
||||
|
||||
// We don't have partner's public key so we check every message to AT
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(null, atAddress, null, null, null);
|
||||
if (messageTransactionsData == null)
|
||||
return null;
|
||||
|
||||
// Find 'redeem' message
|
||||
for (MessageTransactionData messageTransactionData : messageTransactionsData) {
|
||||
// Check message payload type/encryption
|
||||
if (messageTransactionData.isText() || messageTransactionData.isEncrypted())
|
||||
continue;
|
||||
|
||||
// Check message payload size
|
||||
byte[] messageData = messageTransactionData.getData();
|
||||
if (messageData.length != REDEEM_MESSAGE_LENGTH)
|
||||
// Wrong payload length
|
||||
continue;
|
||||
|
||||
// Check sender
|
||||
if (!Crypto.toAddress(messageTransactionData.getSenderPublicKey()).equals(redeemerAddress))
|
||||
// Wrong sender;
|
||||
continue;
|
||||
|
||||
// Extract secretA
|
||||
byte[] secretA = new byte[32];
|
||||
System.arraycopy(messageData, 0, secretA, 0, secretA.length);
|
||||
|
||||
byte[] hashOfSecretA = Crypto.hash160(secretA);
|
||||
if (!Arrays.equals(hashOfSecretA, crossChainTradeData.hashOfSecretA))
|
||||
continue;
|
||||
|
||||
return secretA;
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
}
|
||||
854
src/main/java/org/qortal/crosschain/LitecoinACCTv2.java
Normal file
854
src/main/java/org/qortal/crosschain/LitecoinACCTv2.java
Normal file
@ -0,0 +1,854 @@
|
||||
package org.qortal.crosschain;
|
||||
|
||||
import com.google.common.hash.HashCode;
|
||||
import com.google.common.primitives.Bytes;
|
||||
import org.ciyam.at.*;
|
||||
import org.qortal.account.Account;
|
||||
import org.qortal.asset.Asset;
|
||||
import org.qortal.at.QortalFunctionCode;
|
||||
import org.qortal.crypto.Crypto;
|
||||
import org.qortal.data.at.ATData;
|
||||
import org.qortal.data.at.ATStateData;
|
||||
import org.qortal.data.crosschain.CrossChainTradeData;
|
||||
import org.qortal.data.transaction.MessageTransactionData;
|
||||
import org.qortal.repository.DataException;
|
||||
import org.qortal.repository.Repository;
|
||||
import org.qortal.utils.Base58;
|
||||
import org.qortal.utils.BitTwiddling;
|
||||
|
||||
import java.nio.ByteBuffer;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
|
||||
import static org.ciyam.at.OpCode.calcOffset;
|
||||
|
||||
/**
|
||||
* Cross-chain trade AT
|
||||
*
|
||||
* <p>
|
||||
* <ul>
|
||||
* <li>Bob generates Litecoin & Qortal 'trade' keys
|
||||
* <ul>
|
||||
* <li>private key required to sign P2SH redeem tx</li>
|
||||
* <li>private key could be used to create 'secret' (e.g. double-SHA256)</li>
|
||||
* <li>encrypted private key could be stored in Qortal AT for access by Bob from any node</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob deploys Qortal AT
|
||||
* <ul>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Alice finds Qortal AT and wants to trade
|
||||
* <ul>
|
||||
* <li>Alice generates Litecoin & Qortal 'trade' keys</li>
|
||||
* <li>Alice funds Litecoin P2SH-A</li>
|
||||
* <li>Alice sends 'offer' MESSAGE to Bob from her Qortal trade address, containing:
|
||||
* <ul>
|
||||
* <li>hash-of-secret-A</li>
|
||||
* <li>her 'trade' Litecoin PKH</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob receives "offer" MESSAGE
|
||||
* <ul>
|
||||
* <li>Checks Alice's P2SH-A</li>
|
||||
* <li>Sends 'trade' MESSAGE to Qortal AT from his trade address, containing:
|
||||
* <ul>
|
||||
* <li>Alice's trade Qortal address</li>
|
||||
* <li>Alice's trade Litecoin PKH</li>
|
||||
* <li>hash-of-secret-A</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Alice checks Qortal AT to confirm it's locked to her
|
||||
* <ul>
|
||||
* <li>Alice sends 'redeem' MESSAGE to Qortal AT from her trade address, containing:
|
||||
* <ul>
|
||||
* <li>secret-A</li>
|
||||
* <li>Qortal receiving address of her chosing</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>AT's QORT funds are sent to Qortal receiving address</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* <li>Bob checks AT, extracts secret-A
|
||||
* <ul>
|
||||
* <li>Bob redeems P2SH-A using his Litecoin trade key and secret-A</li>
|
||||
* <li>P2SH-A LTC funds end up at Litecoin address determined by redeem transaction output(s)</li>
|
||||
* </ul>
|
||||
* </li>
|
||||
* </ul>
|
||||
*/
|
||||
public class LitecoinACCTv2 implements ACCT {
|
||||
|
||||
public static final String NAME = LitecoinACCTv2.class.getSimpleName();
|
||||
public static final byte[] CODE_BYTES_HASH = HashCode.fromString("d5ea386a41441180c854ca8d7bbc620bfd53a97df2650a2b162b52324caf6e19").asBytes(); // SHA256 of AT code bytes
|
||||
|
||||
public static final int SECRET_LENGTH = 32;
|
||||
|
||||
/** <b>Value</b> offset into AT segment where 'mode' variable (long) is stored. (Multiply by MachineState.VALUE_SIZE for byte offset). */
|
||||
private static final int MODE_VALUE_OFFSET = 61;
|
||||
/** <b>Byte</b> offset into AT state data where 'mode' variable (long) is stored. */
|
||||
public static final int MODE_BYTE_OFFSET = MachineState.HEADER_LENGTH + (MODE_VALUE_OFFSET * MachineState.VALUE_SIZE);
|
||||
|
||||
public static class OfferMessageData {
|
||||
public byte[] partnerLitecoinPKH;
|
||||
public byte[] hashOfSecretA;
|
||||
public long lockTimeA;
|
||||
}
|
||||
public static final int OFFER_MESSAGE_LENGTH = 20 /*partnerLitecoinPKH*/ + 20 /*hashOfSecretA*/ + 8 /*lockTimeA*/;
|
||||
public static final int TRADE_MESSAGE_LENGTH = 32 /*partner's Qortal trade address (padded from 25 to 32)*/
|
||||
+ 24 /*partner's Litecoin PKH (padded from 20 to 24)*/
|
||||
+ 8 /*AT trade timeout (minutes)*/
|
||||
+ 24 /*hash of secret-A (padded from 20 to 24)*/
|
||||
+ 8 /*lockTimeA*/;
|
||||
public static final int REDEEM_MESSAGE_LENGTH = 32 /*secret-A*/ + 32 /*partner's Qortal receiving address padded from 25 to 32*/;
|
||||
public static final int CANCEL_MESSAGE_LENGTH = 32 /*AT creator's Qortal address*/;
|
||||
|
||||
private static LitecoinACCTv2 instance;
|
||||
|
||||
private LitecoinACCTv2() {
|
||||
}
|
||||
|
||||
public static synchronized LitecoinACCTv2 getInstance() {
|
||||
if (instance == null)
|
||||
instance = new LitecoinACCTv2();
|
||||
|
||||
return instance;
|
||||
}
|
||||
|
||||
@Override
|
||||
public byte[] getCodeBytesHash() {
|
||||
return CODE_BYTES_HASH;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int getModeByteOffset() {
|
||||
return MODE_BYTE_OFFSET;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ForeignBlockchain getBlockchain() {
|
||||
return Litecoin.getInstance();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns Qortal AT creation bytes for cross-chain trading AT.
|
||||
* <p>
|
||||
* <tt>tradeTimeout</tt> (minutes) is the time window for the trade partner to send the
|
||||
* 32-byte secret to the AT, before the AT automatically refunds the AT's creator.
|
||||
*
|
||||
* @param creatorTradeAddress AT creator's trade Qortal address
|
||||
* @param litecoinPublicKeyHash 20-byte HASH160 of creator's trade Litecoin public key
|
||||
* @param qortAmount how much QORT to pay trade partner if they send correct 32-byte secrets to AT
|
||||
* @param litecoinAmount how much LTC the AT creator is expecting to trade
|
||||
* @param tradeTimeout suggested timeout for entire trade
|
||||
*/
|
||||
public static byte[] buildQortalAT(String creatorTradeAddress, byte[] litecoinPublicKeyHash, long qortAmount, long litecoinAmount, int tradeTimeout) {
|
||||
if (litecoinPublicKeyHash.length != 20)
|
||||
throw new IllegalArgumentException("Litecoin public key hash should be 20 bytes");
|
||||
|
||||
// Labels for data segment addresses
|
||||
int addrCounter = 0;
|
||||
|
||||
// Constants (with corresponding dataByteBuffer.put*() calls below)
|
||||
|
||||
final int addrCreatorTradeAddress1 = addrCounter++;
|
||||
final int addrCreatorTradeAddress2 = addrCounter++;
|
||||
final int addrCreatorTradeAddress3 = addrCounter++;
|
||||
final int addrCreatorTradeAddress4 = addrCounter++;
|
||||
|
||||
final int addrLitecoinPublicKeyHash = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrQortAmount = addrCounter++;
|
||||
final int addrLitecoinAmount = addrCounter++;
|
||||
final int addrTradeTimeout = addrCounter++;
|
||||
|
||||
final int addrMessageTxnType = addrCounter++;
|
||||
final int addrExpectedTradeMessageLength = addrCounter++;
|
||||
final int addrExpectedRedeemMessageLength = addrCounter++;
|
||||
|
||||
final int addrCreatorAddressPointer = addrCounter++;
|
||||
final int addrQortalPartnerAddressPointer = addrCounter++;
|
||||
final int addrMessageSenderPointer = addrCounter++;
|
||||
|
||||
final int addrTradeMessagePartnerLitecoinPKHOffset = addrCounter++;
|
||||
final int addrPartnerLitecoinPKHPointer = addrCounter++;
|
||||
final int addrTradeMessageHashOfSecretAOffset = addrCounter++;
|
||||
final int addrHashOfSecretAPointer = addrCounter++;
|
||||
|
||||
final int addrRedeemMessageReceivingAddressOffset = addrCounter++;
|
||||
|
||||
final int addrMessageDataPointer = addrCounter++;
|
||||
final int addrMessageDataLength = addrCounter++;
|
||||
|
||||
final int addrPartnerReceivingAddressPointer = addrCounter++;
|
||||
|
||||
final int addrEndOfConstants = addrCounter;
|
||||
|
||||
// Variables
|
||||
|
||||
final int addrCreatorAddress1 = addrCounter++;
|
||||
final int addrCreatorAddress2 = addrCounter++;
|
||||
final int addrCreatorAddress3 = addrCounter++;
|
||||
final int addrCreatorAddress4 = addrCounter++;
|
||||
|
||||
final int addrQortalPartnerAddress1 = addrCounter++;
|
||||
final int addrQortalPartnerAddress2 = addrCounter++;
|
||||
final int addrQortalPartnerAddress3 = addrCounter++;
|
||||
final int addrQortalPartnerAddress4 = addrCounter++;
|
||||
|
||||
final int addrLockTimeA = addrCounter++;
|
||||
final int addrRefundTimeout = addrCounter++;
|
||||
final int addrRefundTimestamp = addrCounter++;
|
||||
final int addrLastTxnTimestamp = addrCounter++;
|
||||
final int addrBlockTimestamp = addrCounter++;
|
||||
final int addrTxnType = addrCounter++;
|
||||
final int addrResult = addrCounter++;
|
||||
|
||||
final int addrMessageSender1 = addrCounter++;
|
||||
final int addrMessageSender2 = addrCounter++;
|
||||
final int addrMessageSender3 = addrCounter++;
|
||||
final int addrMessageSender4 = addrCounter++;
|
||||
|
||||
final int addrMessageLength = addrCounter++;
|
||||
|
||||
final int addrMessageData = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrHashOfSecretA = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrPartnerLitecoinPKH = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrPartnerReceivingAddress = addrCounter;
|
||||
addrCounter += 4;
|
||||
|
||||
final int addrMode = addrCounter++;
|
||||
assert addrMode == MODE_VALUE_OFFSET : String.format("addrMode %d does not match MODE_VALUE_OFFSET %d", addrMode, MODE_VALUE_OFFSET);
|
||||
|
||||
// Data segment
|
||||
ByteBuffer dataByteBuffer = ByteBuffer.allocate(addrCounter * MachineState.VALUE_SIZE);
|
||||
|
||||
// AT creator's trade Qortal address, decoded from Base58
|
||||
assert dataByteBuffer.position() == addrCreatorTradeAddress1 * MachineState.VALUE_SIZE : "addrCreatorTradeAddress1 incorrect";
|
||||
byte[] creatorTradeAddressBytes = Base58.decode(creatorTradeAddress);
|
||||
dataByteBuffer.put(Bytes.ensureCapacity(creatorTradeAddressBytes, 32, 0));
|
||||
|
||||
// Litecoin public key hash
|
||||
assert dataByteBuffer.position() == addrLitecoinPublicKeyHash * MachineState.VALUE_SIZE : "addrLitecoinPublicKeyHash incorrect";
|
||||
dataByteBuffer.put(Bytes.ensureCapacity(litecoinPublicKeyHash, 32, 0));
|
||||
|
||||
// Redeem Qort amount
|
||||
assert dataByteBuffer.position() == addrQortAmount * MachineState.VALUE_SIZE : "addrQortAmount incorrect";
|
||||
dataByteBuffer.putLong(qortAmount);
|
||||
|
||||
// Expected Litecoin amount
|
||||
assert dataByteBuffer.position() == addrLitecoinAmount * MachineState.VALUE_SIZE : "addrLitecoinAmount incorrect";
|
||||
dataByteBuffer.putLong(litecoinAmount);
|
||||
|
||||
// Suggested trade timeout (minutes)
|
||||
assert dataByteBuffer.position() == addrTradeTimeout * MachineState.VALUE_SIZE : "addrTradeTimeout incorrect";
|
||||
dataByteBuffer.putLong(tradeTimeout);
|
||||
|
||||
// We're only interested in MESSAGE transactions
|
||||
assert dataByteBuffer.position() == addrMessageTxnType * MachineState.VALUE_SIZE : "addrMessageTxnType incorrect";
|
||||
dataByteBuffer.putLong(API.ATTransactionType.MESSAGE.value);
|
||||
|
||||
// Expected length of 'trade' MESSAGE data from AT creator
|
||||
assert dataByteBuffer.position() == addrExpectedTradeMessageLength * MachineState.VALUE_SIZE : "addrExpectedTradeMessageLength incorrect";
|
||||
dataByteBuffer.putLong(TRADE_MESSAGE_LENGTH);
|
||||
|
||||
// Expected length of 'redeem' MESSAGE data from trade partner
|
||||
assert dataByteBuffer.position() == addrExpectedRedeemMessageLength * MachineState.VALUE_SIZE : "addrExpectedRedeemMessageLength incorrect";
|
||||
dataByteBuffer.putLong(REDEEM_MESSAGE_LENGTH);
|
||||
|
||||
// Index into data segment of AT creator's address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrCreatorAddressPointer * MachineState.VALUE_SIZE : "addrCreatorAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrCreatorAddress1);
|
||||
|
||||
// Index into data segment of partner's Qortal address, used by SET_B_IND
|
||||
assert dataByteBuffer.position() == addrQortalPartnerAddressPointer * MachineState.VALUE_SIZE : "addrQortalPartnerAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrQortalPartnerAddress1);
|
||||
|
||||
// Index into data segment of (temporary) transaction's sender's address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrMessageSenderPointer * MachineState.VALUE_SIZE : "addrMessageSenderPointer incorrect";
|
||||
dataByteBuffer.putLong(addrMessageSender1);
|
||||
|
||||
// Offset into 'trade' MESSAGE data payload for extracting partner's Litecoin PKH
|
||||
assert dataByteBuffer.position() == addrTradeMessagePartnerLitecoinPKHOffset * MachineState.VALUE_SIZE : "addrTradeMessagePartnerLitecoinPKHOffset incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Index into data segment of partner's Litecoin PKH, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrPartnerLitecoinPKHPointer * MachineState.VALUE_SIZE : "addrPartnerLitecoinPKHPointer incorrect";
|
||||
dataByteBuffer.putLong(addrPartnerLitecoinPKH);
|
||||
|
||||
// Offset into 'trade' MESSAGE data payload for extracting hash-of-secret-A
|
||||
assert dataByteBuffer.position() == addrTradeMessageHashOfSecretAOffset * MachineState.VALUE_SIZE : "addrTradeMessageHashOfSecretAOffset incorrect";
|
||||
dataByteBuffer.putLong(64L);
|
||||
|
||||
// Index into data segment to hash of secret A, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrHashOfSecretAPointer * MachineState.VALUE_SIZE : "addrHashOfSecretAPointer incorrect";
|
||||
dataByteBuffer.putLong(addrHashOfSecretA);
|
||||
|
||||
// Offset into 'redeem' MESSAGE data payload for extracting Qortal receiving address
|
||||
assert dataByteBuffer.position() == addrRedeemMessageReceivingAddressOffset * MachineState.VALUE_SIZE : "addrRedeemMessageReceivingAddressOffset incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Source location and length for hashing any passed secret
|
||||
assert dataByteBuffer.position() == addrMessageDataPointer * MachineState.VALUE_SIZE : "addrMessageDataPointer incorrect";
|
||||
dataByteBuffer.putLong(addrMessageData);
|
||||
assert dataByteBuffer.position() == addrMessageDataLength * MachineState.VALUE_SIZE : "addrMessageDataLength incorrect";
|
||||
dataByteBuffer.putLong(32L);
|
||||
|
||||
// Pointer into data segment of where to save partner's receiving Qortal address, used by GET_B_IND
|
||||
assert dataByteBuffer.position() == addrPartnerReceivingAddressPointer * MachineState.VALUE_SIZE : "addrPartnerReceivingAddressPointer incorrect";
|
||||
dataByteBuffer.putLong(addrPartnerReceivingAddress);
|
||||
|
||||
assert dataByteBuffer.position() == addrEndOfConstants * MachineState.VALUE_SIZE : "dataByteBuffer position not at end of constants";
|
||||
|
||||
// Code labels
|
||||
Integer labelRefund = null;
|
||||
|
||||
Integer labelTradeTxnLoop = null;
|
||||
Integer labelCheckTradeTxn = null;
|
||||
Integer labelCheckCancelTxn = null;
|
||||
Integer labelNotTradeNorCancelTxn = null;
|
||||
Integer labelCheckNonRefundTradeTxn = null;
|
||||
Integer labelTradeTxnExtract = null;
|
||||
Integer labelRedeemTxnLoop = null;
|
||||
Integer labelCheckRedeemTxn = null;
|
||||
Integer labelCheckRedeemTxnSender = null;
|
||||
Integer labelPayout = null;
|
||||
|
||||
ByteBuffer codeByteBuffer = ByteBuffer.allocate(768);
|
||||
|
||||
// Two-pass version
|
||||
for (int pass = 0; pass < 2; ++pass) {
|
||||
codeByteBuffer.clear();
|
||||
|
||||
try {
|
||||
/* Initialization */
|
||||
|
||||
// Use AT creation 'timestamp' as starting point for finding transactions sent to AT
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_CREATION_TIMESTAMP, addrLastTxnTimestamp));
|
||||
|
||||
// Load B register with AT creator's address so we can save it into addrCreatorAddress1-4
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_CREATOR_INTO_B));
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrCreatorAddressPointer));
|
||||
|
||||
// Set restart position to after this opcode
|
||||
codeByteBuffer.put(OpCode.SET_PCS.compile());
|
||||
|
||||
/* Loop, waiting for message from AT creator's trade address containing trade partner details, or AT owner's address to cancel offer */
|
||||
|
||||
/* Transaction processing loop */
|
||||
labelTradeTxnLoop = codeByteBuffer.position();
|
||||
|
||||
/* Sleep until message arrives */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.SLEEP_UNTIL_MESSAGE.value, addrLastTxnTimestamp));
|
||||
|
||||
// Find next transaction (if any) to this AT since the last one (referenced by addrLastTxnTimestamp)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PUT_TX_AFTER_TIMESTAMP_INTO_A, addrLastTxnTimestamp));
|
||||
// If no transaction found, A will be zero. If A is zero, set addrResult to 1, otherwise 0.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.CHECK_A_IS_ZERO, addrResult));
|
||||
// If addrResult is zero (i.e. A is non-zero, transaction was found) then go check transaction
|
||||
codeByteBuffer.put(OpCode.BZR_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelCheckTradeTxn)));
|
||||
// Stop and wait for next block
|
||||
codeByteBuffer.put(OpCode.STP_IMD.compile());
|
||||
|
||||
/* Check transaction */
|
||||
labelCheckTradeTxn = codeByteBuffer.position();
|
||||
|
||||
// Update our 'last found transaction's timestamp' using 'timestamp' from transaction
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TIMESTAMP_FROM_TX_IN_A, addrLastTxnTimestamp));
|
||||
// Extract transaction type (message/payment) from transaction and save type in addrTxnType
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TYPE_FROM_TX_IN_A, addrTxnType));
|
||||
// If transaction type is not MESSAGE type then go look for another transaction
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrTxnType, addrMessageTxnType, calcOffset(codeByteBuffer, labelTradeTxnLoop)));
|
||||
|
||||
/* Check transaction's sender. We're expecting AT creator's trade address for 'trade' message, or AT creator's own address for 'cancel' message. */
|
||||
|
||||
// Extract sender address from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_ADDRESS_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageSender1 (as pointed to by addrMessageSenderPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageSenderPointer));
|
||||
// Compare each part of message sender's address with AT creator's trade address. If they don't match, check for cancel situation.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrCreatorTradeAddress1, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrCreatorTradeAddress2, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrCreatorTradeAddress3, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrCreatorTradeAddress4, calcOffset(codeByteBuffer, labelCheckCancelTxn)));
|
||||
// Message sender's address matches AT creator's trade address so go process 'trade' message
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelCheckNonRefundTradeTxn == null ? 0 : labelCheckNonRefundTradeTxn));
|
||||
|
||||
/* Checking message sender for possible cancel message */
|
||||
labelCheckCancelTxn = codeByteBuffer.position();
|
||||
|
||||
// Compare each part of message sender's address with AT creator's address. If they don't match, look for another transaction.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrCreatorAddress1, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrCreatorAddress2, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrCreatorAddress3, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrCreatorAddress4, calcOffset(codeByteBuffer, labelNotTradeNorCancelTxn)));
|
||||
// Partner address is AT creator's address, so cancel offer and finish.
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.CANCELLED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
|
||||
/* Not trade nor cancel message */
|
||||
labelNotTradeNorCancelTxn = codeByteBuffer.position();
|
||||
|
||||
// Loop to find another transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelTradeTxnLoop == null ? 0 : labelTradeTxnLoop));
|
||||
|
||||
/* Possible switch-to-trade-mode message */
|
||||
labelCheckNonRefundTradeTxn = codeByteBuffer.position();
|
||||
|
||||
// Check 'trade' message we received has expected number of message bytes
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(QortalFunctionCode.GET_MESSAGE_LENGTH_FROM_TX_IN_A.value, addrMessageLength));
|
||||
// If message length matches, branch to info extraction code
|
||||
codeByteBuffer.put(OpCode.BEQ_DAT.compile(addrMessageLength, addrExpectedTradeMessageLength, calcOffset(codeByteBuffer, labelTradeTxnExtract)));
|
||||
// Message length didn't match - go back to finding another 'trade' MESSAGE transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelTradeTxnLoop == null ? 0 : labelTradeTxnLoop));
|
||||
|
||||
/* Extracting info from 'trade' MESSAGE transaction */
|
||||
labelTradeTxnExtract = codeByteBuffer.position();
|
||||
|
||||
// Extract message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_MESSAGE_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrQortalPartnerAddress1 (as pointed to by addrQortalPartnerAddressPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrQortalPartnerAddressPointer));
|
||||
|
||||
// Extract trade partner's Litecoin public key hash (PKH) from message into B
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrTradeMessagePartnerLitecoinPKHOffset));
|
||||
// Store partner's Litecoin PKH (we only really use values from B1-B3)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrPartnerLitecoinPKHPointer));
|
||||
// Extract AT trade timeout (minutes) (from B4)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_B4, addrRefundTimeout));
|
||||
|
||||
// Grab next 32 bytes
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrTradeMessageHashOfSecretAOffset));
|
||||
|
||||
// Extract hash-of-secret-A (we only really use values from B1-B3)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrHashOfSecretAPointer));
|
||||
// Extract lockTime-A (from B4)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_B4, addrLockTimeA));
|
||||
|
||||
// Calculate trade timeout refund 'timestamp' by adding addrRefundTimeout minutes to this transaction's 'timestamp', then save into addrRefundTimestamp
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET_DAT_2.compile(FunctionCode.ADD_MINUTES_TO_TIMESTAMP, addrRefundTimestamp, addrLastTxnTimestamp, addrRefundTimeout));
|
||||
|
||||
/* We are in 'trade mode' */
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.TRADING.value));
|
||||
|
||||
// Set restart position to after this opcode
|
||||
codeByteBuffer.put(OpCode.SET_PCS.compile());
|
||||
|
||||
/* Loop, waiting for trade timeout or 'redeem' MESSAGE from Qortal trade partner */
|
||||
|
||||
// Fetch current block 'timestamp'
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_BLOCK_TIMESTAMP, addrBlockTimestamp));
|
||||
// If we're not past refund 'timestamp' then look for next transaction
|
||||
codeByteBuffer.put(OpCode.BLT_DAT.compile(addrBlockTimestamp, addrRefundTimestamp, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
// We're past refund 'timestamp' so go refund everything back to AT creator
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRefund == null ? 0 : labelRefund));
|
||||
|
||||
/* Transaction processing loop */
|
||||
labelRedeemTxnLoop = codeByteBuffer.position();
|
||||
|
||||
/* Sleep until message arrives */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.SLEEP_UNTIL_MESSAGE.value, addrLastTxnTimestamp));
|
||||
|
||||
// Find next transaction to this AT since the last one (if any)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PUT_TX_AFTER_TIMESTAMP_INTO_A, addrLastTxnTimestamp));
|
||||
// If no transaction found, A will be zero. If A is zero, set addrComparator to 1, otherwise 0.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.CHECK_A_IS_ZERO, addrResult));
|
||||
// If addrResult is zero (i.e. A is non-zero, transaction was found) then go check transaction
|
||||
codeByteBuffer.put(OpCode.BZR_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelCheckRedeemTxn)));
|
||||
// Stop and wait for next block
|
||||
codeByteBuffer.put(OpCode.STP_IMD.compile());
|
||||
|
||||
/* Check transaction */
|
||||
labelCheckRedeemTxn = codeByteBuffer.position();
|
||||
|
||||
// Update our 'last found transaction's timestamp' using 'timestamp' from transaction
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TIMESTAMP_FROM_TX_IN_A, addrLastTxnTimestamp));
|
||||
// Extract transaction type (message/payment) from transaction and save type in addrTxnType
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(FunctionCode.GET_TYPE_FROM_TX_IN_A, addrTxnType));
|
||||
// If transaction type is not MESSAGE type then go look for another transaction
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrTxnType, addrMessageTxnType, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
|
||||
/* Check message payload length */
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET.compile(QortalFunctionCode.GET_MESSAGE_LENGTH_FROM_TX_IN_A.value, addrMessageLength));
|
||||
// If message length matches, branch to sender checking code
|
||||
codeByteBuffer.put(OpCode.BEQ_DAT.compile(addrMessageLength, addrExpectedRedeemMessageLength, calcOffset(codeByteBuffer, labelCheckRedeemTxnSender)));
|
||||
// Message length didn't match - go back to finding another 'redeem' MESSAGE transaction
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRedeemTxnLoop == null ? 0 : labelRedeemTxnLoop));
|
||||
|
||||
/* Check transaction's sender */
|
||||
labelCheckRedeemTxnSender = codeByteBuffer.position();
|
||||
|
||||
// Extract sender address from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_ADDRESS_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageSender1 (as pointed to by addrMessageSenderPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageSenderPointer));
|
||||
// Compare each part of transaction's sender's address with expected address. If they don't match, look for another transaction.
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender1, addrQortalPartnerAddress1, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender2, addrQortalPartnerAddress2, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender3, addrQortalPartnerAddress3, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
codeByteBuffer.put(OpCode.BNE_DAT.compile(addrMessageSender4, addrQortalPartnerAddress4, calcOffset(codeByteBuffer, labelRedeemTxnLoop)));
|
||||
|
||||
/* Check 'secret-A' in transaction's message */
|
||||
|
||||
// Extract secret-A from first 32 bytes of message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN.compile(FunctionCode.PUT_MESSAGE_FROM_TX_IN_A_INTO_B));
|
||||
// Save B register into data segment starting at addrMessageData (as pointed to by addrMessageDataPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrMessageDataPointer));
|
||||
// Load B register with expected hash result (as pointed to by addrHashOfSecretAPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.SET_B_IND, addrHashOfSecretAPointer));
|
||||
// Perform HASH160 using source data at addrMessageData. (Location and length specified via addrMessageDataPointer and addrMessageDataLength).
|
||||
// Save the equality result (1 if they match, 0 otherwise) into addrResult.
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_RET_DAT_2.compile(FunctionCode.CHECK_HASH160_WITH_B, addrResult, addrMessageDataPointer, addrMessageDataLength));
|
||||
// If hashes don't match, addrResult will be zero so go find another transaction
|
||||
codeByteBuffer.put(OpCode.BNZ_DAT.compile(addrResult, calcOffset(codeByteBuffer, labelPayout)));
|
||||
codeByteBuffer.put(OpCode.JMP_ADR.compile(labelRedeemTxnLoop == null ? 0 : labelRedeemTxnLoop));
|
||||
|
||||
/* Success! Pay arranged amount to receiving address */
|
||||
labelPayout = codeByteBuffer.position();
|
||||
|
||||
// Extract Qortal receiving address from next 32 bytes of message from transaction into B register
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(QortalFunctionCode.PUT_PARTIAL_MESSAGE_FROM_TX_IN_A_INTO_B.value, addrRedeemMessageReceivingAddressOffset));
|
||||
// Save B register into data segment starting at addrPartnerReceivingAddress (as pointed to by addrPartnerReceivingAddressPointer)
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.GET_B_IND, addrPartnerReceivingAddressPointer));
|
||||
// Pay AT's balance to receiving address
|
||||
codeByteBuffer.put(OpCode.EXT_FUN_DAT.compile(FunctionCode.PAY_TO_ADDRESS_IN_B, addrQortAmount));
|
||||
// Set redeemed mode
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.REDEEMED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
|
||||
// Fall-through to refunding any remaining balance back to AT creator
|
||||
|
||||
/* Refund balance back to AT creator */
|
||||
labelRefund = codeByteBuffer.position();
|
||||
|
||||
// Set refunded mode
|
||||
codeByteBuffer.put(OpCode.SET_VAL.compile(addrMode, AcctMode.REFUNDED.value));
|
||||
// We're finished forever (finishing auto-refunds remaining balance to AT creator)
|
||||
codeByteBuffer.put(OpCode.FIN_IMD.compile());
|
||||
} catch (CompilationException e) {
|
||||
throw new IllegalStateException("Unable to compile LTC-QORT ACCT?", e);
|
||||
}
|
||||
}
|
||||
|
||||
codeByteBuffer.flip();
|
||||
|
||||
byte[] codeBytes = new byte[codeByteBuffer.limit()];
|
||||
codeByteBuffer.get(codeBytes);
|
||||
|
||||
assert Arrays.equals(Crypto.digest(codeBytes), LitecoinACCTv2.CODE_BYTES_HASH)
|
||||
: String.format("BTCACCT.CODE_BYTES_HASH mismatch: expected %s, actual %s", HashCode.fromBytes(CODE_BYTES_HASH), HashCode.fromBytes(Crypto.digest(codeBytes)));
|
||||
|
||||
final short ciyamAtVersion = 2;
|
||||
final short numCallStackPages = 0;
|
||||
final short numUserStackPages = 0;
|
||||
final long minActivationAmount = 0L;
|
||||
|
||||
return MachineState.toCreationBytes(ciyamAtVersion, codeBytes, dataByteBuffer.array(), numCallStackPages, numUserStackPages, minActivationAmount);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
@Override
|
||||
public CrossChainTradeData populateTradeData(Repository repository, ATData atData) throws DataException {
|
||||
ATStateData atStateData = repository.getATRepository().getLatestATState(atData.getATAddress());
|
||||
return populateTradeData(repository, atData.getCreatorPublicKey(), atData.getCreation(), atStateData);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
@Override
|
||||
public CrossChainTradeData populateTradeData(Repository repository, ATStateData atStateData) throws DataException {
|
||||
ATData atData = repository.getATRepository().fromATAddress(atStateData.getATAddress());
|
||||
return populateTradeData(repository, atData.getCreatorPublicKey(), atData.getCreation(), atStateData);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns CrossChainTradeData with useful info extracted from AT.
|
||||
*/
|
||||
public CrossChainTradeData populateTradeData(Repository repository, byte[] creatorPublicKey, long creationTimestamp, ATStateData atStateData) throws DataException {
|
||||
byte[] addressBytes = new byte[25]; // for general use
|
||||
String atAddress = atStateData.getATAddress();
|
||||
|
||||
CrossChainTradeData tradeData = new CrossChainTradeData();
|
||||
|
||||
tradeData.foreignBlockchain = SupportedBlockchain.LITECOIN.name();
|
||||
tradeData.acctName = NAME;
|
||||
|
||||
tradeData.qortalAtAddress = atAddress;
|
||||
tradeData.qortalCreator = Crypto.toAddress(creatorPublicKey);
|
||||
tradeData.creationTimestamp = creationTimestamp;
|
||||
|
||||
Account atAccount = new Account(repository, atAddress);
|
||||
tradeData.qortBalance = atAccount.getConfirmedBalance(Asset.QORT);
|
||||
|
||||
byte[] stateData = atStateData.getStateData();
|
||||
ByteBuffer dataByteBuffer = ByteBuffer.wrap(stateData);
|
||||
dataByteBuffer.position(MachineState.HEADER_LENGTH);
|
||||
|
||||
/* Constants */
|
||||
|
||||
// Skip creator's trade address
|
||||
dataByteBuffer.get(addressBytes);
|
||||
tradeData.qortalCreatorTradeAddress = Base58.encode(addressBytes);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - addressBytes.length);
|
||||
|
||||
// Creator's Litecoin/foreign public key hash
|
||||
tradeData.creatorForeignPKH = new byte[20];
|
||||
dataByteBuffer.get(tradeData.creatorForeignPKH);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - tradeData.creatorForeignPKH.length); // skip to 32 bytes
|
||||
|
||||
// We don't use secret-B
|
||||
tradeData.hashOfSecretB = null;
|
||||
|
||||
// Redeem payout
|
||||
tradeData.qortAmount = dataByteBuffer.getLong();
|
||||
|
||||
// Expected LTC amount
|
||||
tradeData.expectedForeignAmount = dataByteBuffer.getLong();
|
||||
|
||||
// Trade timeout
|
||||
tradeData.tradeTimeout = (int) dataByteBuffer.getLong();
|
||||
|
||||
// Skip MESSAGE transaction type
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip expected 'trade' message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip expected 'redeem' message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to creator's address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's Qortal trade address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to message sender
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'trade' message data offset for partner's Litecoin PKH
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's Litecoin PKH
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'trade' message data offset for hash-of-secret-A
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to hash-of-secret-A
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip 'redeem' message data offset for partner's Qortal receiving address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to message data
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip message data length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip pointer to partner's receiving address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
/* End of constants / begin variables */
|
||||
|
||||
// Skip AT creator's address
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Partner's trade address (if present)
|
||||
dataByteBuffer.get(addressBytes);
|
||||
String qortalRecipient = Base58.encode(addressBytes);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - addressBytes.length);
|
||||
|
||||
// Potential lockTimeA (if in trade mode)
|
||||
int lockTimeA = (int) dataByteBuffer.getLong();
|
||||
|
||||
// AT refund timeout (probably only useful for debugging)
|
||||
int refundTimeout = (int) dataByteBuffer.getLong();
|
||||
|
||||
// Trade-mode refund timestamp (AT 'timestamp' converted to Qortal block height)
|
||||
long tradeRefundTimestamp = dataByteBuffer.getLong();
|
||||
|
||||
// Skip last transaction timestamp
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip block timestamp
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip transaction type
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary result
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary message sender
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Skip message length
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8);
|
||||
|
||||
// Skip temporary message data
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 8 * 4);
|
||||
|
||||
// Potential hash160 of secret A
|
||||
byte[] hashOfSecretA = new byte[20];
|
||||
dataByteBuffer.get(hashOfSecretA);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - hashOfSecretA.length); // skip to 32 bytes
|
||||
|
||||
// Potential partner's Litecoin PKH
|
||||
byte[] partnerLitecoinPKH = new byte[20];
|
||||
dataByteBuffer.get(partnerLitecoinPKH);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - partnerLitecoinPKH.length); // skip to 32 bytes
|
||||
|
||||
// Partner's receiving address (if present)
|
||||
byte[] partnerReceivingAddress = new byte[25];
|
||||
dataByteBuffer.get(partnerReceivingAddress);
|
||||
dataByteBuffer.position(dataByteBuffer.position() + 32 - partnerReceivingAddress.length); // skip to 32 bytes
|
||||
|
||||
// Trade AT's 'mode'
|
||||
long modeValue = dataByteBuffer.getLong();
|
||||
AcctMode mode = AcctMode.valueOf((int) (modeValue & 0xffL));
|
||||
|
||||
/* End of variables */
|
||||
|
||||
if (mode != null && mode != AcctMode.OFFERING) {
|
||||
tradeData.mode = mode;
|
||||
tradeData.refundTimeout = refundTimeout;
|
||||
tradeData.tradeRefundHeight = new Timestamp(tradeRefundTimestamp).blockHeight;
|
||||
tradeData.qortalPartnerAddress = qortalRecipient;
|
||||
tradeData.hashOfSecretA = hashOfSecretA;
|
||||
tradeData.partnerForeignPKH = partnerLitecoinPKH;
|
||||
tradeData.lockTimeA = lockTimeA;
|
||||
|
||||
if (mode == AcctMode.REDEEMED)
|
||||
tradeData.qortalPartnerReceivingAddress = Base58.encode(partnerReceivingAddress);
|
||||
} else {
|
||||
tradeData.mode = AcctMode.OFFERING;
|
||||
}
|
||||
|
||||
tradeData.duplicateDeprecated();
|
||||
|
||||
return tradeData;
|
||||
}
|
||||
|
||||
/** Returns 'offer' MESSAGE payload for trade partner to send to AT creator's trade address. */
|
||||
public static byte[] buildOfferMessage(byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA) {
|
||||
byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
|
||||
return Bytes.concat(partnerBitcoinPKH, hashOfSecretA, lockTimeABytes);
|
||||
}
|
||||
|
||||
/** Returns info extracted from 'offer' MESSAGE payload sent by trade partner to AT creator's trade address, or null if not valid. */
|
||||
public static OfferMessageData extractOfferMessageData(byte[] messageData) {
|
||||
if (messageData == null || messageData.length != OFFER_MESSAGE_LENGTH)
|
||||
return null;
|
||||
|
||||
OfferMessageData offerMessageData = new OfferMessageData();
|
||||
offerMessageData.partnerLitecoinPKH = Arrays.copyOfRange(messageData, 0, 20);
|
||||
offerMessageData.hashOfSecretA = Arrays.copyOfRange(messageData, 20, 40);
|
||||
offerMessageData.lockTimeA = BitTwiddling.longFromBEBytes(messageData, 40);
|
||||
|
||||
return offerMessageData;
|
||||
}
|
||||
|
||||
/** Returns 'trade' MESSAGE payload for AT creator to send to AT. */
|
||||
public static byte[] buildTradeMessage(String partnerQortalTradeAddress, byte[] partnerBitcoinPKH, byte[] hashOfSecretA, int lockTimeA, int refundTimeout) {
|
||||
byte[] data = new byte[TRADE_MESSAGE_LENGTH];
|
||||
byte[] partnerQortalAddressBytes = Base58.decode(partnerQortalTradeAddress);
|
||||
byte[] lockTimeABytes = BitTwiddling.toBEByteArray((long) lockTimeA);
|
||||
byte[] refundTimeoutBytes = BitTwiddling.toBEByteArray((long) refundTimeout);
|
||||
|
||||
System.arraycopy(partnerQortalAddressBytes, 0, data, 0, partnerQortalAddressBytes.length);
|
||||
System.arraycopy(partnerBitcoinPKH, 0, data, 32, partnerBitcoinPKH.length);
|
||||
System.arraycopy(refundTimeoutBytes, 0, data, 56, refundTimeoutBytes.length);
|
||||
System.arraycopy(hashOfSecretA, 0, data, 64, hashOfSecretA.length);
|
||||
System.arraycopy(lockTimeABytes, 0, data, 88, lockTimeABytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns 'cancel' MESSAGE payload for AT creator to cancel trade AT. */
|
||||
@Override
|
||||
public byte[] buildCancelMessage(String creatorQortalAddress) {
|
||||
byte[] data = new byte[CANCEL_MESSAGE_LENGTH];
|
||||
byte[] creatorQortalAddressBytes = Base58.decode(creatorQortalAddress);
|
||||
|
||||
System.arraycopy(creatorQortalAddressBytes, 0, data, 0, creatorQortalAddressBytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns 'redeem' MESSAGE payload for trade partner to send to AT. */
|
||||
public static byte[] buildRedeemMessage(byte[] secretA, String qortalReceivingAddress) {
|
||||
byte[] data = new byte[REDEEM_MESSAGE_LENGTH];
|
||||
byte[] qortalReceivingAddressBytes = Base58.decode(qortalReceivingAddress);
|
||||
|
||||
System.arraycopy(secretA, 0, data, 0, secretA.length);
|
||||
System.arraycopy(qortalReceivingAddressBytes, 0, data, 32, qortalReceivingAddressBytes.length);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
/** Returns refund timeout (minutes) based on trade partner's 'offer' MESSAGE timestamp and P2SH-A locktime. */
|
||||
public static int calcRefundTimeout(long offerMessageTimestamp, int lockTimeA) {
|
||||
// refund should be triggered halfway between offerMessageTimestamp and lockTimeA
|
||||
return (int) ((lockTimeA - (offerMessageTimestamp / 1000L)) / 2L / 60L);
|
||||
}
|
||||
|
||||
@Override
|
||||
public byte[] findSecretA(Repository repository, CrossChainTradeData crossChainTradeData) throws DataException {
|
||||
String atAddress = crossChainTradeData.qortalAtAddress;
|
||||
String redeemerAddress = crossChainTradeData.qortalPartnerAddress;
|
||||
|
||||
// We don't have partner's public key so we check every message to AT
|
||||
List<MessageTransactionData> messageTransactionsData = repository.getMessageRepository().getMessagesByParticipants(null, atAddress, null, null, null);
|
||||
if (messageTransactionsData == null)
|
||||
return null;
|
||||
|
||||
// Find 'redeem' message
|
||||
for (MessageTransactionData messageTransactionData : messageTransactionsData) {
|
||||
// Check message payload type/encryption
|
||||
if (messageTransactionData.isText() || messageTransactionData.isEncrypted())
|
||||
continue;
|
||||
|
||||
// Check message payload size
|
||||
byte[] messageData = messageTransactionData.getData();
|
||||
if (messageData.length != REDEEM_MESSAGE_LENGTH)
|
||||
// Wrong payload length
|
||||
continue;
|
||||
|
||||
// Check sender
|
||||
if (!Crypto.toAddress(messageTransactionData.getSenderPublicKey()).equals(redeemerAddress))
|
||||
// Wrong sender;
|
||||
continue;
|
||||
|
||||
// Extract secretA
|
||||
byte[] secretA = new byte[32];
|
||||
System.arraycopy(messageData, 0, secretA, 0, secretA.length);
|
||||
|
||||
byte[] hashOfSecretA = Crypto.hash160(secretA);
|
||||
if (!Arrays.equals(hashOfSecretA, crossChainTradeData.hashOfSecretA))
|
||||
continue;
|
||||
|
||||
return secretA;
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
}
|
||||
@ -28,7 +28,8 @@ public enum SupportedBlockchain {
|
||||
},
|
||||
|
||||
LITECOIN(Arrays.asList(
|
||||
Triple.valueOf(LitecoinACCTv1.NAME, LitecoinACCTv1.CODE_BYTES_HASH, LitecoinACCTv1::getInstance)
|
||||
Triple.valueOf(LitecoinACCTv1.NAME, LitecoinACCTv1.CODE_BYTES_HASH, LitecoinACCTv1::getInstance),
|
||||
Triple.valueOf(LitecoinACCTv2.NAME, LitecoinACCTv2.CODE_BYTES_HASH, LitecoinACCTv2::getInstance)
|
||||
)) {
|
||||
@Override
|
||||
public ForeignBlockchain getInstance() {
|
||||
@ -37,12 +38,13 @@ public enum SupportedBlockchain {
|
||||
|
||||
@Override
|
||||
public ACCT getLatestAcct() {
|
||||
return LitecoinACCTv1.getInstance();
|
||||
return LitecoinACCTv2.getInstance();
|
||||
}
|
||||
},
|
||||
|
||||
DOGECOIN(Arrays.asList(
|
||||
Triple.valueOf(DogecoinACCTv1.NAME, DogecoinACCTv1.CODE_BYTES_HASH, DogecoinACCTv1::getInstance)
|
||||
Triple.valueOf(DogecoinACCTv1.NAME, DogecoinACCTv1.CODE_BYTES_HASH, DogecoinACCTv1::getInstance),
|
||||
Triple.valueOf(DogecoinACCTv2.NAME, DogecoinACCTv2.CODE_BYTES_HASH, DogecoinACCTv2::getInstance)
|
||||
)) {
|
||||
@Override
|
||||
public ForeignBlockchain getInstance() {
|
||||
@ -51,7 +53,7 @@ public enum SupportedBlockchain {
|
||||
|
||||
@Override
|
||||
public ACCT getLatestAcct() {
|
||||
return DogecoinACCTv1.getInstance();
|
||||
return DogecoinACCTv2.getInstance();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
@ -75,7 +75,7 @@ public class Network {
|
||||
"node1.qortal.org", "node2.qortal.org", "node3.qortal.org", "node4.qortal.org", "node5.qortal.org",
|
||||
"node6.qortal.org", "node7.qortal.org", "node8.qortal.org", "node9.qortal.org", "node10.qortal.org",
|
||||
"node.qortal.ru", "node2.qortal.ru", "node3.qortal.ru", "node.qortal.uk", "node22.qortal.org",
|
||||
"cinfu1.crowetic.com", "node.cwd.systems"
|
||||
"cinfu1.crowetic.com", "node.cwd.systems", "bootstrap.cwd.systems"
|
||||
};
|
||||
|
||||
private static final long NETWORK_EPC_KEEPALIVE = 10L; // seconds
|
||||
|
||||
@ -10,6 +10,7 @@ import org.qortal.data.account.MintingAccountData;
|
||||
import org.qortal.data.block.BlockData;
|
||||
import org.qortal.data.crosschain.TradeBotData;
|
||||
import org.qortal.gui.SplashFrame;
|
||||
import org.qortal.network.Network;
|
||||
import org.qortal.repository.hsqldb.HSQLDBImportExport;
|
||||
import org.qortal.repository.hsqldb.HSQLDBRepositoryFactory;
|
||||
import org.qortal.settings.Settings;
|
||||
@ -241,6 +242,9 @@ public class Bootstrap {
|
||||
repository.getNetworkRepository().deleteAllPeers();
|
||||
repository.saveChanges();
|
||||
|
||||
LOGGER.info("Adding initial peers...");
|
||||
Network.installInitialPeers(repository);
|
||||
|
||||
LOGGER.info("Creating bootstrap...");
|
||||
// Timeout if the database isn't ready for backing up after 10 seconds
|
||||
long timeout = 10 * 1000L;
|
||||
|
||||
@ -28,9 +28,9 @@ public class HSQLDBImportExport {
|
||||
|
||||
private static final Logger LOGGER = LogManager.getLogger(Bootstrap.class);
|
||||
|
||||
public static void backupTradeBotStates(Repository repository) throws DataException {
|
||||
HSQLDBImportExport.backupCurrentTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupArchivedTradeBotStates(repository);
|
||||
public static void backupTradeBotStates(Repository repository, List<TradeBotData> additional) throws DataException {
|
||||
HSQLDBImportExport.backupCurrentTradeBotStates(repository, additional);
|
||||
HSQLDBImportExport.backupArchivedTradeBotStates(repository, additional);
|
||||
|
||||
LOGGER.info("Exported sensitive/node-local data: trade bot states");
|
||||
}
|
||||
@ -47,14 +47,23 @@ public class HSQLDBImportExport {
|
||||
/**
|
||||
* Backs up the trade bot states currently in the repository, without combining them with past ones
|
||||
* @param repository
|
||||
* @param additional - any optional extra trade bot states to include in the backup
|
||||
* @throws DataException
|
||||
*/
|
||||
private static void backupCurrentTradeBotStates(Repository repository) throws DataException {
|
||||
private static void backupCurrentTradeBotStates(Repository repository, List<TradeBotData> additional) throws DataException {
|
||||
try {
|
||||
Path backupDirectory = HSQLDBImportExport.getExportDirectory(true);
|
||||
|
||||
// Load current trade bot data
|
||||
List<TradeBotData> allTradeBotData = repository.getCrossChainRepository().getAllTradeBotData();
|
||||
|
||||
|
||||
// Add any additional entries if specified
|
||||
if (additional != null && !additional.isEmpty()) {
|
||||
allTradeBotData.addAll(additional);
|
||||
}
|
||||
|
||||
// Convert them to JSON objects
|
||||
JSONArray currentTradeBotDataJson = new JSONArray();
|
||||
for (TradeBotData tradeBotData : allTradeBotData) {
|
||||
JSONObject tradeBotDataJson = tradeBotData.toJson();
|
||||
@ -82,14 +91,22 @@ public class HSQLDBImportExport {
|
||||
* Backs up the trade bot states currently in the repository to a separate "archive" file,
|
||||
* making sure to combine them with any unique states already present in the archive.
|
||||
* @param repository
|
||||
* @param additional - any optional extra trade bot states to include in the backup
|
||||
* @throws DataException
|
||||
*/
|
||||
private static void backupArchivedTradeBotStates(Repository repository) throws DataException {
|
||||
private static void backupArchivedTradeBotStates(Repository repository, List<TradeBotData> additional) throws DataException {
|
||||
try {
|
||||
Path backupDirectory = HSQLDBImportExport.getExportDirectory(true);
|
||||
|
||||
// Load current trade bot data
|
||||
List<TradeBotData> allTradeBotData = repository.getCrossChainRepository().getAllTradeBotData();
|
||||
|
||||
// Add any additional entries if specified
|
||||
if (additional != null && !additional.isEmpty()) {
|
||||
allTradeBotData.addAll(additional);
|
||||
}
|
||||
|
||||
// Convert them to JSON objects
|
||||
JSONArray allTradeBotDataJson = new JSONArray();
|
||||
for (TradeBotData tradeBotData : allTradeBotData) {
|
||||
JSONObject tradeBotDataJson = tradeBotData.toJson();
|
||||
@ -263,7 +280,7 @@ public class HSQLDBImportExport {
|
||||
* @param jsonString
|
||||
* @return Triple<String, String, JSONArray> (type, dataset, data)
|
||||
*/
|
||||
private static Triple<String, String, JSONArray> parseJSONString(String jsonString) throws DataException {
|
||||
public static Triple<String, String, JSONArray> parseJSONString(String jsonString) throws DataException {
|
||||
String type = null;
|
||||
String dataset = null;
|
||||
JSONArray data = null;
|
||||
|
||||
@ -471,7 +471,7 @@ public class HSQLDBRepository implements Repository {
|
||||
|
||||
@Override
|
||||
public void exportNodeLocalData() throws DataException {
|
||||
HSQLDBImportExport.backupTradeBotStates(this);
|
||||
HSQLDBImportExport.backupTradeBotStates(this, null);
|
||||
HSQLDBImportExport.backupMintingAccounts(this);
|
||||
}
|
||||
|
||||
|
||||
@ -114,9 +114,9 @@ public class Settings {
|
||||
/** Whether to show a notification when we backup repository. */
|
||||
private boolean showBackupNotification = false;
|
||||
/** Minimum time between repository maintenance attempts (ms) */
|
||||
private long repositoryMaintenanceMinInterval = 7 * 24 * 60 * 60 * 1000L; // 7 days (ms) default
|
||||
private long repositoryMaintenanceMinInterval = 3 * 24 * 60 * 60 * 1000L; // 3 days (ms) default
|
||||
/** Maximum time between repository maintenance attempts (ms) (0 if disabled). */
|
||||
private long repositoryMaintenanceMaxInterval = 30 * 24 * 60 * 60 * 1000L; // 30 days (ms) default
|
||||
private long repositoryMaintenanceMaxInterval = 14 * 24 * 60 * 60 * 1000L; // 14 days (ms) default
|
||||
/** Whether to show a notification when we run scheduled maintenance. */
|
||||
private boolean showMaintenanceNotification = false;
|
||||
/** How long between repository checkpoints (ms). */
|
||||
@ -239,6 +239,7 @@ public class Settings {
|
||||
// Bootstrap sources
|
||||
private String[] bootstrapHosts = new String[] {
|
||||
"http://bootstrap.qortal.org",
|
||||
"http://bootstrap2.qortal.org",
|
||||
"http://cinfu1.crowetic.com"
|
||||
};
|
||||
|
||||
|
||||
@ -25,12 +25,15 @@ import org.qortal.repository.hsqldb.HSQLDBImportExport;
|
||||
import org.qortal.settings.Settings;
|
||||
import org.qortal.test.common.Common;
|
||||
import org.qortal.utils.NTP;
|
||||
import org.qortal.utils.Triple;
|
||||
|
||||
import java.io.FileWriter;
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Path;
|
||||
import java.nio.file.Paths;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
|
||||
import static org.junit.Assert.*;
|
||||
@ -68,7 +71,7 @@ public class ImportExportTests extends Common {
|
||||
assertEquals(10, repository.getCrossChainRepository().getAllTradeBotData().size());
|
||||
|
||||
// Export them
|
||||
HSQLDBImportExport.backupTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, null);
|
||||
|
||||
// Delete them from the repository
|
||||
for (TradeBotData tradeBotData : tradeBots) {
|
||||
@ -117,7 +120,7 @@ public class ImportExportTests extends Common {
|
||||
assertEquals(10, repository.getCrossChainRepository().getAllTradeBotData().size());
|
||||
|
||||
// Export them
|
||||
HSQLDBImportExport.backupTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, null);
|
||||
|
||||
// Delete them from the repository
|
||||
for (TradeBotData tradeBotData : tradeBots) {
|
||||
@ -136,7 +139,7 @@ public class ImportExportTests extends Common {
|
||||
}
|
||||
|
||||
// Export again
|
||||
HSQLDBImportExport.backupTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, null);
|
||||
|
||||
// Import current states only
|
||||
Path exportPath = HSQLDBImportExport.getExportDirectory(false);
|
||||
@ -184,7 +187,7 @@ public class ImportExportTests extends Common {
|
||||
assertEquals(10, repository.getCrossChainRepository().getAllTradeBotData().size());
|
||||
|
||||
// Export them
|
||||
HSQLDBImportExport.backupTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, null);
|
||||
|
||||
// Delete them from the repository
|
||||
for (TradeBotData tradeBotData : tradeBots) {
|
||||
@ -203,7 +206,7 @@ public class ImportExportTests extends Common {
|
||||
}
|
||||
|
||||
// Export again
|
||||
HSQLDBImportExport.backupTradeBotStates(repository);
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, null);
|
||||
|
||||
// Import all states from the archive
|
||||
Path exportPath = HSQLDBImportExport.getExportDirectory(false);
|
||||
@ -263,6 +266,67 @@ public class ImportExportTests extends Common {
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testArchiveTradeBotStateOnTradeFailure() throws DataException, IOException {
|
||||
try (final Repository repository = RepositoryManager.getRepository()) {
|
||||
|
||||
// Create a trade bot and save it in the repository
|
||||
TradeBotData tradeBotData = this.createTradeBotData(repository);
|
||||
|
||||
// Ensure it doesn't exist in the repository
|
||||
assertTrue(repository.getCrossChainRepository().getAllTradeBotData().isEmpty());
|
||||
|
||||
// Export trade bot states, passing in the newly created trade bot as an additional parameter
|
||||
// This is needed because it hasn't been saved to the db yet
|
||||
HSQLDBImportExport.backupTradeBotStates(repository, Arrays.asList(tradeBotData));
|
||||
|
||||
// Ensure it is still not present in the repository
|
||||
assertTrue(repository.getCrossChainRepository().getAllTradeBotData().isEmpty());
|
||||
|
||||
// Export all local node data again, but this time without including the trade bot data
|
||||
// This simulates the behaviour of a node shutdown
|
||||
repository.exportNodeLocalData();
|
||||
|
||||
// The TradeBotStates.json file should contain no entries
|
||||
Path backupDirectory = HSQLDBImportExport.getExportDirectory(false);
|
||||
Path tradeBotStatesBackup = Paths.get(backupDirectory.toString(), "TradeBotStates.json");
|
||||
assertTrue(Files.exists(tradeBotStatesBackup));
|
||||
String jsonString = new String(Files.readAllBytes(tradeBotStatesBackup));
|
||||
Triple<String, String, JSONArray> parsedJSON = HSQLDBImportExport.parseJSONString(jsonString);
|
||||
JSONArray tradeBotDataJson = parsedJSON.getC();
|
||||
assertTrue(tradeBotDataJson.isEmpty());
|
||||
|
||||
// .. but the TradeBotStatesArchive.json should contain the trade bot data
|
||||
Path tradeBotStatesArchiveBackup = Paths.get(backupDirectory.toString(), "TradeBotStatesArchive.json");
|
||||
assertTrue(Files.exists(tradeBotStatesArchiveBackup));
|
||||
jsonString = new String(Files.readAllBytes(tradeBotStatesArchiveBackup));
|
||||
parsedJSON = HSQLDBImportExport.parseJSONString(jsonString);
|
||||
JSONObject tradeBotDataJsonObject = (JSONObject) parsedJSON.getC().get(0);
|
||||
assertEquals(tradeBotData.toJson().toString(), tradeBotDataJsonObject.toString());
|
||||
|
||||
// Now try importing local data (to simulate a node startup)
|
||||
String exportPath = Settings.getInstance().getExportPath();
|
||||
Path importPath = Paths.get(exportPath, "TradeBotStates.json");
|
||||
repository.importDataFromFile(importPath.toString());
|
||||
|
||||
// The trade should be missing since it's not present in TradeBotStates.json
|
||||
assertTrue(repository.getCrossChainRepository().getAllTradeBotData().isEmpty());
|
||||
|
||||
// The user now imports TradeBotStatesArchive.json
|
||||
Path archiveImportPath = Paths.get(exportPath, "TradeBotStatesArchive.json");
|
||||
repository.importDataFromFile(archiveImportPath.toString());
|
||||
|
||||
// The trade should be present in the database
|
||||
assertEquals(1, repository.getCrossChainRepository().getAllTradeBotData().size());
|
||||
|
||||
// The trade bot data in the repository should match the one that was originally created
|
||||
byte[] tradePrivateKey = tradeBotData.getTradePrivateKey();
|
||||
TradeBotData repositoryTradeBotData = repository.getCrossChainRepository().getTradeBotData(tradePrivateKey);
|
||||
assertNotNull(repositoryTradeBotData);
|
||||
assertEquals(tradeBotData.toJson().toString(), repositoryTradeBotData.toJson().toString());
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testExportAndImportMintingAccountData() throws DataException, IOException {
|
||||
try (final Repository repository = RepositoryManager.getRepository()) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user