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org.bitcoinj.evolution.ProviderUpdateServiceTx Maven / Gradle / Ivy
/*
* Copyright 2019 Dash Core Group.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.bitcoinj.evolution;
import org.bitcoinj.core.*;
import org.bitcoinj.crypto.BLSPublicKey;
import org.bitcoinj.crypto.BLSSecretKey;
import org.bitcoinj.crypto.BLSSignature;
import org.bitcoinj.script.Script;
import org.bitcoinj.script.ScriptException;
import org.json.JSONObject;
import java.io.IOException;
import java.io.OutputStream;
public class ProviderUpdateServiceTx extends SpecialTxPayload {
public static final int CURRENT_VERSION = 1;
public static final int LEGACY_BLS_VERSION = 1;
public static final int BASIC_BLS_VERSION = 2;
public static final int MESSAGE_SIZE = 181;
public static final int MESSAGE_SIZE_WITHOUT_SIGNATURE = MESSAGE_SIZE - 96;
Sha256Hash proTxHash;
MasternodeAddress address;
Script scriptOperatorPayout;
Sha256Hash inputsHash; //replay protection
BLSSignature signature;
public ProviderUpdateServiceTx(NetworkParameters params, Transaction tx) {
super(params, tx);
}
public ProviderUpdateServiceTx(NetworkParameters params, int version, Sha256Hash proTxHash,
MasternodeAddress address,
Script scriptOperatorPayout, Sha256Hash inputsHash) {
super(params, version);
this.proTxHash = proTxHash;
this.address = address.duplicate();
this.scriptOperatorPayout = scriptOperatorPayout;
this.inputsHash = inputsHash;
length = MESSAGE_SIZE_WITHOUT_SIGNATURE;
}
public ProviderUpdateServiceTx(NetworkParameters params, int version, Sha256Hash proTxHash,
MasternodeAddress address,
Script scriptOperatorPayout, Sha256Hash inputsHash, BLSSignature signature) {
this(params, version, proTxHash, address, scriptOperatorPayout, inputsHash);
this.signature = signature;
length = MESSAGE_SIZE;
}
public ProviderUpdateServiceTx(NetworkParameters params, int version, Sha256Hash proTxHash,
MasternodeAddress address,
Script scriptOperatorPayout, Sha256Hash inputsHash, BLSSecretKey signingKey, boolean legacy) {
this(params, version, proTxHash, address, scriptOperatorPayout, inputsHash);
sign(signingKey, legacy);
}
@Override
protected void parse() throws ProtocolException {
super.parse(); //read version
proTxHash = readHash();
address = new MasternodeAddress(params, payload, cursor, NetworkParameters.ProtocolVersion.CURRENT.getBitcoinProtocolVersion());
cursor += address.getMessageSize();
scriptOperatorPayout = new Script(readByteArray());
inputsHash = readHash();
signature = new BLSSignature(params, payload, cursor, version == LEGACY_BLS_VERSION);
cursor += signature.getMessageSize();
length = cursor - offset;
}
protected void bitcoinSerializeWithoutSignature(OutputStream stream) throws IOException{
super.bitcoinSerializeToStream(stream);
stream.write(proTxHash.getReversedBytes());
address.bitcoinSerialize(stream);
if(scriptOperatorPayout != null)
Utils.bytesToByteStream(scriptOperatorPayout.getProgram(), stream);
else stream.write(new byte[0]);
stream.write(inputsHash.getReversedBytes());
}
@Override
protected void bitcoinSerializeToStream(OutputStream stream) throws IOException {
bitcoinSerializeWithoutSignature(stream);
signature.bitcoinSerialize(stream);
}
public int getCurrentVersion() {
return CURRENT_VERSION;
}
public String toString() {
String payee = "unknown";
try {
payee = scriptOperatorPayout.getToAddress(params).toString();
} catch (AddressFormatException x) {
//swallow
} catch (ScriptException x) {
//swallow
}
return String.format("ProUpServTx(version=%d, proTxHash=%s, address=%s, operatorPayoutAddress=%s)",
version, proTxHash, address, payee);
}
@Override
public Transaction.Type getType() {
return Transaction.Type.TRANSACTION_PROVIDER_UPDATE_SERVICE;
}
@Override
public String getName() {
return "providerRegisterTx";
}
@Override
public JSONObject toJson() {
JSONObject result = new JSONObject();
result.append("version", version);
result.append("proTxHash", proTxHash);
result.append("service", address.toString());
try {
Address destination = scriptOperatorPayout.getToAddress(params);
result.append("payoutAddress", destination);
} catch (AddressFormatException x) {
//swallow
}
result.append("inputsHash", inputsHash);
return result;
}
@Override
public Sha256Hash getHash() {
try {
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream();
bitcoinSerializeWithoutSignature(bos);
return Sha256Hash.wrapReversed(Sha256Hash.hashTwice(bos.toByteArray()));
} catch (IOException x) {
throw new RuntimeException(x.getMessage());
}
}
public Sha256Hash getSignatureHash() {
try {
UnsafeByteArrayOutputStream bos = new UnsafeByteArrayOutputStream();
bitcoinSerializeWithoutSignature(bos);
return Sha256Hash.wrap(Sha256Hash.hashTwice(bos.toByteArray()));
} catch (IOException x) {
throw new RuntimeException(x.getMessage());
}
}
void sign(BLSSecretKey signingKey) {
signature = signingKey.sign(getSignatureHash());
length = MESSAGE_SIZE;
unCache();
}
void sign(BLSSecretKey signingKey, boolean legacy) {
signature = signingKey.sign(getSignatureHash(), legacy);
length = MESSAGE_SIZE;
unCache();
}
public Sha256Hash getProTxHash() {
return proTxHash;
}
public MasternodeAddress getAddress() {
return address;
}
public Script getScriptOperatorPayout() {
return scriptOperatorPayout;
}
}
