forked from Qortal/qortal
Added Dogecoin TradeBot and ACCT
This commit is contained in:
CalDescent
parent
50e4e71abb
commit
9df7c96d08
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package org.qortal.api.resource;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.media.Content;
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import io.swagger.v3.oas.annotations.media.Schema;
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import io.swagger.v3.oas.annotations.parameters.RequestBody;
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import io.swagger.v3.oas.annotations.responses.ApiResponse;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.qortal.account.PrivateKeyAccount;
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import org.qortal.api.ApiError;
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import org.qortal.api.ApiErrors;
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import org.qortal.api.ApiExceptionFactory;
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import org.qortal.api.Security;
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import org.qortal.api.model.CrossChainSecretRequest;
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import org.qortal.crosschain.AcctMode;
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import org.qortal.crosschain.DogecoinACCTv1;
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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.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.repository.RepositoryManager;
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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.Transformer;
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import javax.servlet.http.HttpServletRequest;
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import javax.ws.rs.POST;
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import javax.ws.rs.Path;
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import javax.ws.rs.core.Context;
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import javax.ws.rs.core.MediaType;
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import java.util.Arrays;
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@Path("/crosschain/DogecoinACCTv1")
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@Tag(name = "Cross-Chain (DogecoinACCTv1)")
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public class CrossChainDogecoinACCTv1Resource {
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@Context
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HttpServletRequest request;
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@POST
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@Path("/redeemmessage")
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@Operation(
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summary = "Signs and broadcasts a 'redeem' MESSAGE transaction that sends secrets to AT, releasing funds to partner",
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description = "Specify address of cross-chain AT that needs to be messaged, Alice's trade private key, the 32-byte secret,<br>"
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+ "and an address for receiving QORT from AT. All of these can be found in Alice's trade bot data.<br>"
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+ "AT needs to be in 'trade' mode. Messages sent to an AT in any other mode will be ignored, but still cost fees to send!<br>"
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+ "You need to use the private key that the AT considers the trade 'partner' otherwise the MESSAGE transaction will be invalid.",
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requestBody = @RequestBody(
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required = true,
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content = @Content(
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mediaType = MediaType.APPLICATION_JSON,
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schema = @Schema(
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implementation = CrossChainSecretRequest.class
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)
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)
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),
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responses = {
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@ApiResponse(
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content = @Content(
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schema = @Schema(
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type = "string"
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)
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)
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)
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}
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)
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@ApiErrors({ApiError.INVALID_PUBLIC_KEY, ApiError.INVALID_ADDRESS, ApiError.INVALID_DATA, ApiError.INVALID_CRITERIA, ApiError.REPOSITORY_ISSUE})
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public boolean buildRedeemMessage(CrossChainSecretRequest secretRequest) {
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Security.checkApiCallAllowed(request);
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byte[] partnerPrivateKey = secretRequest.partnerPrivateKey;
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if (partnerPrivateKey == null || partnerPrivateKey.length != Transformer.PRIVATE_KEY_LENGTH)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PRIVATE_KEY);
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if (secretRequest.atAddress == null || !Crypto.isValidAtAddress(secretRequest.atAddress))
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
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if (secretRequest.secret == null || secretRequest.secret.length != DogecoinACCTv1.SECRET_LENGTH)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA);
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if (secretRequest.receivingAddress == null || !Crypto.isValidAddress(secretRequest.receivingAddress))
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
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try (final Repository repository = RepositoryManager.getRepository()) {
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ATData atData = fetchAtDataWithChecking(repository, secretRequest.atAddress);
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CrossChainTradeData crossChainTradeData = DogecoinACCTv1.getInstance().populateTradeData(repository, atData);
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if (crossChainTradeData.mode != AcctMode.TRADING)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
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byte[] partnerPublicKey = new PrivateKeyAccount(null, partnerPrivateKey).getPublicKey();
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String partnerAddress = Crypto.toAddress(partnerPublicKey);
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// MESSAGE must come from address that AT considers trade partner
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if (!crossChainTradeData.qortalPartnerAddress.equals(partnerAddress))
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_ADDRESS);
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// Good to make MESSAGE
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byte[] messageData = DogecoinACCTv1.buildRedeemMessage(secretRequest.secret, secretRequest.receivingAddress);
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PrivateKeyAccount sender = new PrivateKeyAccount(repository, partnerPrivateKey);
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MessageTransaction messageTransaction = MessageTransaction.build(repository, sender, Group.NO_GROUP, secretRequest.atAddress, messageData, false, false);
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messageTransaction.computeNonce();
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messageTransaction.sign(sender);
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// reset repository state to prevent deadlock
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repository.discardChanges();
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ValidationResult result = messageTransaction.importAsUnconfirmed();
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if (result != ValidationResult.OK)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.TRANSACTION_INVALID);
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return true;
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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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}
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private ATData fetchAtDataWithChecking(Repository repository, String atAddress) throws DataException {
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ATData atData = repository.getATRepository().fromATAddress(atAddress);
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if (atData == null)
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.ADDRESS_UNKNOWN);
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// Must be correct AT - check functionality using code hash
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if (!Arrays.equals(atData.getCodeHash(), DogecoinACCTv1.CODE_BYTES_HASH))
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
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// No point sending message to AT that's finished
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if (atData.getIsFinished())
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throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
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return atData;
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}
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}
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@ -0,0 +1,883 @@
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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 DogecoinACCTv1TradeBot implements AcctTradeBot {
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private static final Logger LOGGER = LogManager.getLogger(DogecoinACCTv1TradeBot.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) {
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this.value = value;
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this.requiresAtData = requiresAtData;
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this.requiresTradeData = requiresTradeData;
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}
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public static State valueOf(int value) {
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return map.get(value);
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}
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@Override
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public String getState() {
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return this.name();
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}
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@Override
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public int getStateValue() {
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return this.value;
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}
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}
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/** Maximum time Bob waits for his AT creation transaction to be confirmed into a block. (milliseconds) */
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private static final long MAX_AT_CONFIRMATION_PERIOD = 24 * 60 * 60 * 1000L; // ms
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private static DogecoinACCTv1TradeBot instance;
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private final List<String> endStates = Arrays.asList(State.BOB_DONE, State.BOB_REFUNDED, State.ALICE_DONE, State.ALICE_REFUNDING_A, State.ALICE_REFUNDED).stream()
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.map(State::name)
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.collect(Collectors.toUnmodifiableList());
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private DogecoinACCTv1TradeBot() {
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}
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public static synchronized DogecoinACCTv1TradeBot getInstance() {
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if (instance == null)
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instance = new DogecoinACCTv1TradeBot();
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return instance;
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}
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@Override
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public List<String> getEndStates() {
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return this.endStates;
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}
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/**
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* Creates a new trade-bot entry from the "Bob" viewpoint, i.e. OFFERing QORT in exchange for DOGE.
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* <p>
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* Generates:
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* <ul>
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* <li>new 'trade' private key</li>
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* </ul>
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* Derives:
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* <ul>
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* <li>'native' (as in Qortal) public key, public key hash, address (starting with Q)</li>
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* <li>'foreign' (as in Dogecoin) public key, public key hash</li>
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* </ul>
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* A Qortal AT is then constructed including the following as constants in the 'data segment':
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* <ul>
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* <li>'native'/Qortal 'trade' address - used as a MESSAGE contact</li>
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* <li>'foreign'/Dogecoin public key hash - used by Alice's P2SH scripts to allow redeem</li>
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* <li>QORT amount on offer by Bob</li>
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* <li>DOGE amount expected in return by Bob (from Alice)</li>
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* <li>trading timeout, in case things go wrong and everyone needs to refund</li>
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* </ul>
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* Returns a DEPLOY_AT transaction that needs to be signed and broadcast to the Qortal network.
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* <p>
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* Trade-bot will wait for Bob's AT to be deployed before taking next step.
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* <p>
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* @param repository
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* @param tradeBotCreateRequest
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* @return raw, unsigned DEPLOY_AT transaction
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* @throws DataException
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*/
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public byte[] createTrade(Repository repository, TradeBotCreateRequest tradeBotCreateRequest) throws DataException {
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byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
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byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
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byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
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String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
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byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
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byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
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// Convert Dogecoin receiving address into public key hash (we only support P2PKH at this time)
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Address dogecoinReceivingAddress;
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try {
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dogecoinReceivingAddress = Address.fromString(Dogecoin.getInstance().getNetworkParameters(), tradeBotCreateRequest.receivingAddress);
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} catch (AddressFormatException e) {
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throw new DataException("Unsupported Dogecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
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}
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if (dogecoinReceivingAddress.getOutputScriptType() != ScriptType.P2PKH)
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throw new DataException("Unsupported Dogecoin receiving address: " + tradeBotCreateRequest.receivingAddress);
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byte[] dogecoinReceivingAccountInfo = dogecoinReceivingAddress.getHash();
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PublicKeyAccount creator = new PublicKeyAccount(repository, tradeBotCreateRequest.creatorPublicKey);
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// Deploy AT
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long timestamp = NTP.getTime();
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byte[] reference = creator.getLastReference();
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long fee = 0L;
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byte[] signature = null;
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BaseTransactionData baseTransactionData = new BaseTransactionData(timestamp, Group.NO_GROUP, reference, creator.getPublicKey(), fee, signature);
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String name = "QORT/DOGE ACCT";
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String description = "QORT/DOGE cross-chain trade";
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String aTType = "ACCT";
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String tags = "ACCT QORT DOGE";
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byte[] creationBytes = DogecoinACCTv1.buildQortalAT(tradeNativeAddress, tradeForeignPublicKeyHash, tradeBotCreateRequest.qortAmount,
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tradeBotCreateRequest.foreignAmount, tradeBotCreateRequest.tradeTimeout);
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long amount = tradeBotCreateRequest.fundingQortAmount;
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DeployAtTransactionData deployAtTransactionData = new DeployAtTransactionData(baseTransactionData, name, description, aTType, tags, creationBytes, amount, Asset.QORT);
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DeployAtTransaction deployAtTransaction = new DeployAtTransaction(repository, deployAtTransactionData);
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fee = deployAtTransaction.calcRecommendedFee();
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deployAtTransactionData.setFee(fee);
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DeployAtTransaction.ensureATAddress(deployAtTransactionData);
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String atAddress = deployAtTransactionData.getAtAddress();
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TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, DogecoinACCTv1.NAME,
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State.BOB_WAITING_FOR_AT_CONFIRM.name(), State.BOB_WAITING_FOR_AT_CONFIRM.value,
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creator.getAddress(), atAddress, timestamp, tradeBotCreateRequest.qortAmount,
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tradeNativePublicKey, tradeNativePublicKeyHash, tradeNativeAddress,
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null, null,
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SupportedBlockchain.LITECOIN.name(),
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tradeForeignPublicKey, tradeForeignPublicKeyHash,
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tradeBotCreateRequest.foreignAmount, null, null, null, dogecoinReceivingAccountInfo);
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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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// 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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return DeployAtTransactionTransformer.toBytes(deployAtTransactionData);
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} catch (TransformationException e) {
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throw new DataException("Failed to transform DEPLOY_AT transaction?", e);
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}
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}
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/**
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* Creates a trade-bot entry from the 'Alice' viewpoint, i.e. matching DOGE to an existing offer.
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* <p>
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* Requires a chosen trade offer from Bob, passed by <tt>crossChainTradeData</tt>
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* and access to a Dogecoin wallet via <tt>xprv58</tt>.
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* <p>
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* The <tt>crossChainTradeData</tt> contains the current trade offer state
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* as extracted from the AT's data segment.
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* <p>
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* Access to a funded wallet is via a Dogecoin BIP32 hierarchical deterministic key,
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* passed via <tt>xprv58</tt>.
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* <b>This key will be stored in your node's database</b>
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* to allow trade-bot to create/fund the necessary P2SH transactions!
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* However, due to the nature of BIP32 keys, it is possible to give the trade-bot
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* only a subset of wallet access (see BIP32 for more details).
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* <p>
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* As an example, the xprv58 can be extract from a <i>legacy, password-less</i>
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* Electrum wallet by going to the console tab and entering:<br>
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* <tt>wallet.keystore.xprv</tt><br>
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* which should result in a base58 string starting with either 'xprv' (for Dogecoin main-net)
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* or 'tprv' for (Dogecoin test-net).
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* <p>
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* It is envisaged that the value in <tt>xprv58</tt> will actually come from a Qortal-UI-managed wallet.
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* <p>
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* If sufficient funds are available, <b>this method will actually fund the P2SH-A</b>
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* with the Dogecoin amount expected by 'Bob'.
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* <p>
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* If the Dogecoin transaction is successfully broadcast to the network then
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* we also send a MESSAGE to Bob's trade-bot to let them know.
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* <p>
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* The trade-bot entry is saved to the repository and the cross-chain trading process commences.
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* <p>
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* @param repository
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* @param crossChainTradeData chosen trade OFFER that Alice wants to match
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* @param xprv58 funded wallet xprv in base58
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* @return true if P2SH-A funding transaction successfully broadcast to Dogecoin network, false otherwise
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* @throws DataException
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*/
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public ResponseResult startResponse(Repository repository, ATData atData, ACCT acct, CrossChainTradeData crossChainTradeData, String xprv58, String receivingAddress) throws DataException {
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byte[] tradePrivateKey = TradeBot.generateTradePrivateKey();
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byte[] secretA = TradeBot.generateSecret();
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byte[] hashOfSecretA = Crypto.hash160(secretA);
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byte[] tradeNativePublicKey = TradeBot.deriveTradeNativePublicKey(tradePrivateKey);
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byte[] tradeNativePublicKeyHash = Crypto.hash160(tradeNativePublicKey);
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String tradeNativeAddress = Crypto.toAddress(tradeNativePublicKey);
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byte[] tradeForeignPublicKey = TradeBot.deriveTradeForeignPublicKey(tradePrivateKey);
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byte[] tradeForeignPublicKeyHash = Crypto.hash160(tradeForeignPublicKey);
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byte[] receivingPublicKeyHash = Base58.decode(receivingAddress); // Actually the whole address, not just PKH
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// We need to generate lockTime-A: add tradeTimeout to now
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long now = NTP.getTime();
|
||||
int lockTimeA = crossChainTradeData.tradeTimeout * 60 + (int) (now / 1000L);
|
||||
|
||||
TradeBotData tradeBotData = new TradeBotData(tradePrivateKey, DogecoinACCTv1.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
|
||||
TradeBot.backupTradeBotData(repository);
|
||||
|
||||
// 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 = DogecoinACCTv1.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 = DogecoinACCTv1.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();
|
||||
DogecoinACCTv1.OfferMessageData offerMessageData = DogecoinACCTv1.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 = DogecoinACCTv1.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 = DogecoinACCTv1.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 = DogecoinACCTv1.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 = DogecoinACCTv1.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 = DogecoinACCTv1.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;
|
||||
}
|
||||
|
||||
}
|
||||
@ -17,11 +17,7 @@ import org.qortal.account.PrivateKeyAccount;
|
||||
import org.qortal.api.model.crosschain.TradeBotCreateRequest;
|
||||
import org.qortal.controller.Controller;
|
||||
import org.qortal.controller.tradebot.AcctTradeBot.ResponseResult;
|
||||
import org.qortal.crosschain.ACCT;
|
||||
import org.qortal.crosschain.BitcoinACCTv1;
|
||||
import org.qortal.crosschain.ForeignBlockchainException;
|
||||
import org.qortal.crosschain.LitecoinACCTv1;
|
||||
import org.qortal.crosschain.SupportedBlockchain;
|
||||
import org.qortal.crosschain.*;
|
||||
import org.qortal.data.at.ATData;
|
||||
import org.qortal.data.crosschain.CrossChainTradeData;
|
||||
import org.qortal.data.crosschain.TradeBotData;
|
||||
@ -80,6 +76,7 @@ public class TradeBot implements Listener {
|
||||
static {
|
||||
acctTradeBotSuppliers.put(BitcoinACCTv1.class, BitcoinACCTv1TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(LitecoinACCTv1.class, LitecoinACCTv1TradeBot::getInstance);
|
||||
acctTradeBotSuppliers.put(DogecoinACCTv1.class, DogecoinACCTv1TradeBot::getInstance);
|
||||
}
|
||||
|
||||
private static TradeBot instance;
|
||||
|
||||
854
src/main/java/org/qortal/crosschain/DogecoinACCTv1.java
Normal file
854
src/main/java/org/qortal/crosschain/DogecoinACCTv1.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.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 DogecoinACCTv1 implements ACCT {
|
||||
|
||||
private static final Logger LOGGER = LogManager.getLogger(DogecoinACCTv1.class);
|
||||
|
||||
public static final String NAME = DogecoinACCTv1.class.getSimpleName();
|
||||
public static final byte[] CODE_BYTES_HASH = HashCode.fromString("0eb49b0313ff3855a29d860c2a8203faa2ef62e28ea30459321f176079cfa3a5").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 DogecoinACCTv1 instance;
|
||||
|
||||
private DogecoinACCTv1() {
|
||||
}
|
||||
|
||||
public static synchronized DogecoinACCTv1 getInstance() {
|
||||
if (instance == null)
|
||||
instance = new DogecoinACCTv1();
|
||||
|
||||
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();
|
||||
|
||||
// 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();
|
||||
|
||||
// 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), DogecoinACCTv1.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 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);
|
||||
}
|
||||
|
||||
public static 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;
|
||||
}
|
||||
|
||||
}
|
||||
@ -39,6 +39,20 @@ public enum SupportedBlockchain {
|
||||
public ACCT getLatestAcct() {
|
||||
return LitecoinACCTv1.getInstance();
|
||||
}
|
||||
},
|
||||
|
||||
DOGECOIN(Arrays.asList(
|
||||
Triple.valueOf(DogecoinACCTv1.NAME, DogecoinACCTv1.CODE_BYTES_HASH, DogecoinACCTv1::getInstance)
|
||||
)) {
|
||||
@Override
|
||||
public ForeignBlockchain getInstance() {
|
||||
return Dogecoin.getInstance();
|
||||
}
|
||||
|
||||
@Override
|
||||
public ACCT getLatestAcct() {
|
||||
return DogecoinACCTv1.getInstance();
|
||||
}
|
||||
};
|
||||
|
||||
private static final Map<ByteArray, Supplier<ACCT>> supportedAcctsByCodeHash = Arrays.stream(SupportedBlockchain.values())
|
||||
@ -110,4 +124,4 @@ public enum SupportedBlockchain {
|
||||
return acctInstanceSupplier.get();
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
114
src/test/java/org/qortal/test/crosschain/DogecoinTests.java
Normal file
114
src/test/java/org/qortal/test/crosschain/DogecoinTests.java
Normal file
@ -0,0 +1,114 @@
|
||||
package org.qortal.test.crosschain;
|
||||
|
||||
import org.bitcoinj.core.Transaction;
|
||||
import org.bitcoinj.store.BlockStoreException;
|
||||
import org.junit.After;
|
||||
import org.junit.Before;
|
||||
import org.junit.Ignore;
|
||||
import org.junit.Test;
|
||||
import org.qortal.crosschain.BitcoinyHTLC;
|
||||
import org.qortal.crosschain.ForeignBlockchainException;
|
||||
import org.qortal.crosschain.Dogecoin;
|
||||
import org.qortal.repository.DataException;
|
||||
import org.qortal.test.common.Common;
|
||||
|
||||
import java.util.Arrays;
|
||||
|
||||
import static org.junit.Assert.*;
|
||||
|
||||
public class DogecoinTests extends Common {
|
||||
|
||||
private Dogecoin dogecoin;
|
||||
|
||||
@Before
|
||||
public void beforeTest() throws DataException {
|
||||
Common.useDefaultSettings(); // TestNet3
|
||||
dogecoin = Dogecoin.getInstance();
|
||||
}
|
||||
|
||||
@After
|
||||
public void afterTest() {
|
||||
Dogecoin.resetForTesting();
|
||||
dogecoin = null;
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGetMedianBlockTime() throws BlockStoreException, ForeignBlockchainException {
|
||||
long before = System.currentTimeMillis();
|
||||
System.out.println(String.format("Bitcoin median blocktime: %d", dogecoin.getMedianBlockTime()));
|
||||
long afterFirst = System.currentTimeMillis();
|
||||
|
||||
System.out.println(String.format("Bitcoin median blocktime: %d", dogecoin.getMedianBlockTime()));
|
||||
long afterSecond = System.currentTimeMillis();
|
||||
|
||||
long firstPeriod = afterFirst - before;
|
||||
long secondPeriod = afterSecond - afterFirst;
|
||||
|
||||
System.out.println(String.format("1st call: %d ms, 2nd call: %d ms", firstPeriod, secondPeriod));
|
||||
|
||||
assertTrue("2nd call should be quicker than 1st", secondPeriod < firstPeriod);
|
||||
assertTrue("2nd call should take less than 5 seconds", secondPeriod < 5000L);
|
||||
}
|
||||
|
||||
@Test
|
||||
@Ignore(value = "Doesn't work, to be fixed later")
|
||||
public void testFindHtlcSecret() throws ForeignBlockchainException {
|
||||
// This actually exists on TEST3 but can take a while to fetch
|
||||
String p2shAddress = "2N8WCg52ULCtDSMjkgVTm5mtPdCsUptkHWE";
|
||||
|
||||
byte[] expectedSecret = "This string is exactly 32 bytes!".getBytes();
|
||||
byte[] secret = BitcoinyHTLC.findHtlcSecret(dogecoin, p2shAddress);
|
||||
|
||||
assertNotNull("secret not found", secret);
|
||||
assertTrue("secret incorrect", Arrays.equals(expectedSecret, secret));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testBuildSpend() {
|
||||
String xprv58 = "tprv8ZgxMBicQKsPdahhFSrCdvC1bsWyzHHZfTneTVqUXN6s1wEtZLwAkZXzFP6TYLg2aQMecZLXLre5bTVGajEB55L1HYJcawpdFG66STVAWPJ";
|
||||
|
||||
String recipient = "2N8WCg52ULCtDSMjkgVTm5mtPdCsUptkHWE";
|
||||
long amount = 1000L;
|
||||
|
||||
Transaction transaction = dogecoin.buildSpend(xprv58, recipient, amount);
|
||||
assertNotNull("insufficient funds", transaction);
|
||||
|
||||
// Check spent key caching doesn't affect outcome
|
||||
|
||||
transaction = dogecoin.buildSpend(xprv58, recipient, amount);
|
||||
assertNotNull("insufficient funds", transaction);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGetWalletBalance() {
|
||||
String xprv58 = "tprv8ZgxMBicQKsPdahhFSrCdvC1bsWyzHHZfTneTVqUXN6s1wEtZLwAkZXzFP6TYLg2aQMecZLXLre5bTVGajEB55L1HYJcawpdFG66STVAWPJ";
|
||||
|
||||
Long balance = dogecoin.getWalletBalance(xprv58);
|
||||
|
||||
assertNotNull(balance);
|
||||
|
||||
System.out.println(dogecoin.format(balance));
|
||||
|
||||
// Check spent key caching doesn't affect outcome
|
||||
|
||||
Long repeatBalance = dogecoin.getWalletBalance(xprv58);
|
||||
|
||||
assertNotNull(repeatBalance);
|
||||
|
||||
System.out.println(dogecoin.format(repeatBalance));
|
||||
|
||||
assertEquals(balance, repeatBalance);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGetUnusedReceiveAddress() throws ForeignBlockchainException {
|
||||
String xprv58 = "tprv8ZgxMBicQKsPdahhFSrCdvC1bsWyzHHZfTneTVqUXN6s1wEtZLwAkZXzFP6TYLg2aQMecZLXLre5bTVGajEB55L1HYJcawpdFG66STVAWPJ";
|
||||
|
||||
String address = dogecoin.getUnusedReceiveAddress(xprv58);
|
||||
|
||||
assertNotNull(address);
|
||||
|
||||
System.out.println(address);
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user