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logbon72/DecodeBinanceSignedData.java

Created June 11, 2020 20:00
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  1. logbon72 created this gist Jun 11, 2020.
    43 changes: 43 additions & 0 deletions DecodeBinanceSignedData.java
    View file
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    import com.binance.dex.api.client.TransactionConverter;
    import com.binance.dex.api.client.domain.broadcast.Transaction;
    import com.binance.dex.api.client.encoding.message.MessageType;
    import com.binance.dex.api.proto.StdTx;
    import com.fasterxml.jackson.databind.ObjectMapper;
    import com.google.protobuf.CodedInputStream;
    import org.bouncycastle.util.encoders.Hex;
    import org.junit.jupiter.api.Assertions;
    import org.junit.jupiter.api.Test;

    import java.io.IOException;
    import java.util.List;
    import java.util.stream.Collectors;

    public class DecodeBinanceSignedData {


    @Test
    public void aminoUnWrap() throws IOException {
    byte[] data = Hex.decode("db01f0625dee0a65ce6dc0430a14b6561dcc104130059a7c08f48c64610c1f6f9064122b423635363144434331303431333030353941374330384634384336343631304331463646393036342d31311a0b4254432d3543345f424e42200228013080c2d72f3880989abc044001126e0a26eb5ae9872103baf53d1424f8ea83d03a82f6d157b5401c4ea57ffb8317872e15a19fc9b7ad7b1240e79a6606d28cf07b9cc6f566b524a5282b13beccc3162376c79f392620c95a447b19f64e761e22a7a3bc311a780e7d9fdd521e2f7edec25308c5bac6aa1c0a311801200a");
    CodedInputStream cis = CodedInputStream.newInstance(data);
    long tag = cis.readUInt64();
    System.out.println("Tag: " + tag + " --> " + cis.getTotalBytesRead());
    byte[] typeBytes = MessageType.StdTx.getTypePrefixBytes();

    byte[] typeRead = cis.readRawBytes(typeBytes.length);

    System.out.println("Type = " + Hex.toHexString(typeRead));
    byte[] txData = cis.readRawBytes((int) (tag - typeRead.length));
    StdTx tx = StdTx.parseFrom(txData);

    TransactionConverter converter = new TransactionConverter("bnb");

    List<Transaction> transactions = tx.getMsgsList().stream().map((msg) -> {
    return converter.convert(msg.toByteArray());
    })
    .collect(Collectors.toList());

    Assertions.assertFalse(transactions.isEmpty());
    System.out.println("transaction: " + new ObjectMapper().writeValueAsString(transactions));
    }
    }