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Update BTC-ACCT 'cancel' API call to expect AT creator's as sender

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This commit is contained in:
catbref 2020-08-06 08:52:51 +01:00
parent 23a524b464
commit 8f2985862d
2 changed files with 25 additions and 14 deletions
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4
src/main/java/org/qortal/api/model/CrossChainCancelRequest.java
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@ -8,8 +8,8 @@ import io.swagger.v3.oas.annotations.media.Schema;
@XmlAccessorType(XmlAccessType.FIELD)
public class CrossChainCancelRequest {
@Schema(description = "AT creator's 'trade' public key", example = "K6wuddsBV3HzRrXFFezE7P5MoRXp5m3mEDokRDGZB6ry")
public byte[] tradePublicKey;
@Schema(description = "AT creator's public key", example = "K6wuddsBV3HzRrXFFezE7P5MoRXp5m3mEDokRDGZB6ry")
public byte[] creatorPublicKey;
@Schema(description = "Qortal trade AT address")
public String atAddress;

29
src/main/java/org/qortal/api/resource/CrossChainResource.java
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@ -380,7 +380,7 @@ public class CrossChainResource {
summary = "Builds raw, unsigned 'cancel' MESSAGE transaction that cancels cross-chain trade offer",
description = "Specify address of cross-chain AT that needs to be cancelled.<br>"
+ "AT needs to be in 'offer' mode. Messages sent to an AT in 'trade' mode will be ignored, but still cost fees to send!<br>"
+ "You need to sign output with trade's private key otherwise the MESSAGE transaction will be invalid.",
+ "You need to sign output with AT creator's private key otherwise the MESSAGE transaction will be invalid.",
requestBody = @RequestBody(
required = true,
content = @Content(
@ -404,9 +404,9 @@ public class CrossChainResource {
public String buildCancelMessage(CrossChainCancelRequest cancelRequest) {
Security.checkApiCallAllowed(request);
byte[] tradePublicKey = cancelRequest.tradePublicKey;
byte[] creatorPublicKey = cancelRequest.creatorPublicKey;
if (tradePublicKey == null || tradePublicKey.length != Transformer.PUBLIC_KEY_LENGTH)
if (creatorPublicKey == null || creatorPublicKey.length != Transformer.PUBLIC_KEY_LENGTH)
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PUBLIC_KEY);
if (cancelRequest.atAddress == null || !Crypto.isValidAtAddress(cancelRequest.atAddress))
@ -419,16 +419,16 @@ public class CrossChainResource {
if (crossChainTradeData.mode != BTCACCT.Mode.OFFERING)
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
// Does supplied public key match trade public key?
if (!Crypto.toAddress(tradePublicKey).equals(crossChainTradeData.qortalCreatorTradeAddress))
// Does supplied public key match AT creator's public key?
if (!Arrays.equals(creatorPublicKey, atData.getCreatorPublicKey()))
throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_PUBLIC_KEY);
// Good to make MESSAGE
String atCreatorAddress = crossChainTradeData.qortalCreator;
String atCreatorAddress = Crypto.toAddress(creatorPublicKey);
byte[] messageData = BTCACCT.buildCancelMessage(atCreatorAddress);
byte[] messageTransactionBytes = buildAtMessage(repository, tradePublicKey, cancelRequest.atAddress, messageData);
byte[] messageTransactionBytes = buildAtMessage(repository, creatorPublicKey, cancelRequest.atAddress, messageData);
return Base58.encode(messageTransactionBytes);
} catch (DataException e) {
@ -1222,12 +1222,18 @@ public class CrossChainResource {
}
private byte[] buildAtMessage(Repository repository, byte[] senderPublicKey, String atAddress, byte[] messageData) throws DataException {
// senderPublicKey is actually ephemeral trade public key, so there is no corresponding account and hence no reference
long txTimestamp = NTP.getTime();
// senderPublicKey could be ephemeral trade public key where there is no corresponding account and hence no reference
String senderAddress = Crypto.toAddress(senderPublicKey);
byte[] lastReference = repository.getAccountRepository().getLastReference(senderAddress);
final boolean requiresPoW = lastReference == null;
if (requiresPoW) {
Random random = new Random();
byte[] lastReference = new byte[Transformer.SIGNATURE_LENGTH];
lastReference = new byte[Transformer.SIGNATURE_LENGTH];
random.nextBytes(lastReference);
}
int version = 4;
int nonce = 0;
@ -1240,7 +1246,12 @@ public class CrossChainResource {
MessageTransaction messageTransaction = new MessageTransaction(repository, messageTransactionData);
if (requiresPoW) {
messageTransaction.computeNonce();
} else {
fee = messageTransaction.calcRecommendedFee();
messageTransactionData.setFee(fee);
}
ValidationResult result = messageTransaction.isValidUnconfirmed();
if (result != ValidationResult.OK)