Java Code Examples for org.bitcoinj.script.ScriptChunk#isPushData()

The following examples show how to use org.bitcoinj.script.ScriptChunk#isPushData() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DefaultRiskAnalysis.java    From bcm-android with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Checks if the given input passes some of the AreInputsStandard checks. Not complete.
 */
public static RuleViolation isInputStandard(TransactionInput input) {
    for (ScriptChunk chunk : input.getScriptSig().getChunks()) {
        if (chunk.data != null && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
        if (chunk.isPushData()) {
            ECDSASignature signature;
            try {
                signature = ECKey.ECDSASignature.decodeFromDER(chunk.data);
            } catch (IllegalArgumentException x) {
                // Doesn't look like a signature.
                signature = null;
            }
            if (signature != null) {
                if (!TransactionSignature.isEncodingCanonical(chunk.data))
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
                if (!signature.isCanonical())
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
            }
        }
    }
    return RuleViolation.NONE;
}
Example 2
Source File: BisqRiskAnalysis.java    From bisq-core with GNU Affero General Public License v3.0 6 votes vote down vote up 
/** Checks if the given input passes some of the AreInputsStandard checks. Not complete. */
public static RuleViolation isInputStandard(TransactionInput input) {
    for (ScriptChunk chunk : input.getScriptSig().getChunks()) {
        if (chunk.data != null && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
        if (chunk.isPushData()) {
            ECDSASignature signature;
            try {
                signature = ECKey.ECDSASignature.decodeFromDER(chunk.data);
            } catch (RuntimeException x) {
                // Doesn't look like a signature.
                signature = null;
            }
            if (signature != null) {
                if (!TransactionSignature.isEncodingCanonical(chunk.data))
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
                if (!signature.isCanonical())
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
            }
        }
    }
    return RuleViolation.NONE;
}
Example 3
Source File: DefaultRiskAnalysis.java    From green_android with GNU General Public License v3.0 6 votes vote down vote up 
/** Checks if the given input passes some of the AreInputsStandard checks. Not complete. */
public static RuleViolation isInputStandard(TransactionInput input) {
    for (ScriptChunk chunk : input.getScriptSig().getChunks()) {
        if (chunk.data != null && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
        if (chunk.isPushData()) {
            ECDSASignature signature;
            try {
                signature = ECKey.ECDSASignature.decodeFromDER(chunk.data);
            } catch (RuntimeException x) {
                // Doesn't look like a signature.
                signature = null;
            }
            if (signature != null) {
                if (!TransactionSignature.isEncodingCanonical(chunk.data))
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
                if (!signature.isCanonical())
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
            }
        }
    }
    return RuleViolation.NONE;
}
Example 4
Source File: DefaultRiskAnalysis.java    From GreenBits with GNU General Public License v3.0 6 votes vote down vote up 
/** Checks if the given input passes some of the AreInputsStandard checks. Not complete. */
public static RuleViolation isInputStandard(TransactionInput input) {
    for (ScriptChunk chunk : input.getScriptSig().getChunks()) {
        if (chunk.data != null && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
        if (chunk.isPushData()) {
            ECDSASignature signature;
            try {
                signature = ECKey.ECDSASignature.decodeFromDER(chunk.data);
            } catch (RuntimeException x) {
                // Doesn't look like a signature.
                signature = null;
            }
            if (signature != null) {
                if (!TransactionSignature.isEncodingCanonical(chunk.data))
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
                if (!signature.isCanonical())
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
            }
        }
    }
    return RuleViolation.NONE;
}
Example 5
Source File: BisqRiskAnalysis.java    From bisq with GNU Affero General Public License v3.0 6 votes vote down vote up 
/** Checks if the given input passes some of the AreInputsStandard checks. Not complete. */
public static RuleViolation isInputStandard(TransactionInput input) {
    for (ScriptChunk chunk : input.getScriptSig().getChunks()) {
        if (chunk.data != null && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
        if (chunk.isPushData()) {
            ECDSASignature signature;
            try {
                signature = ECKey.ECDSASignature.decodeFromDER(chunk.data);
            } catch (RuntimeException x) {
                // Doesn't look like a signature.
                signature = null;
            }
            if (signature != null) {
                if (!TransactionSignature.isEncodingCanonical(chunk.data))
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
                if (!signature.isCanonical())
                    return RuleViolation.SIGNATURE_CANONICAL_ENCODING;
            }
        }
    }
    return RuleViolation.NONE;
}
Example 6
Source File: DefaultRiskAnalysis.java    From bcm-android with GNU General Public License v3.0 5 votes vote down vote up 
/**
 * Checks the output to see if the script violates a standardness rule. Not complete.
 */
public static RuleViolation isOutputStandard(TransactionOutput output) {
    if (output.getValue().compareTo(MIN_ANALYSIS_NONDUST_OUTPUT) < 0)
        return RuleViolation.DUST;
    for (ScriptChunk chunk : output.getScriptPubKey().getChunks()) {
        if (chunk.isPushData() && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
    }
    return RuleViolation.NONE;
}
Example 7
Source File: BisqRiskAnalysis.java    From bisq-core with GNU Affero General Public License v3.0 5 votes vote down vote up 
/**
 * Checks the output to see if the script violates a standardness rule. Not complete.
 */
public static RuleViolation isOutputStandard(TransactionOutput output) {
    // OP_RETURN has usually output value zero, so we exclude that from the MIN_ANALYSIS_NONDUST_OUTPUT check
    if (!output.getScriptPubKey().isOpReturn()
            && output.getValue().compareTo(MIN_ANALYSIS_NONDUST_OUTPUT) < 0)
        return RuleViolation.DUST;
    for (ScriptChunk chunk : output.getScriptPubKey().getChunks()) {
        if (chunk.isPushData() && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
    }
    return RuleViolation.NONE;
}
Example 8
Source File: DefaultRiskAnalysis.java    From green_android with GNU General Public License v3.0 5 votes vote down vote up 
/**
 * Checks the output to see if the script violates a standardness rule. Not complete.
 */
public static RuleViolation isOutputStandard(TransactionOutput output) {
    if (output.getValue().compareTo(MIN_ANALYSIS_NONDUST_OUTPUT) < 0)
        return RuleViolation.DUST;
    for (ScriptChunk chunk : output.getScriptPubKey().getChunks()) {
        if (chunk.isPushData() && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
    }
    return RuleViolation.NONE;
}
Example 9
Source File: ScriptTools.java    From thunder with GNU Affero General Public License v3.0 5 votes vote down vote up 
public static boolean testScript (byte[] script, byte[] template, byte[]... parameters) {

        Script s = new Script(script);
        List<ScriptChunk> chunks = s.getChunks();

        int parameter = 0;

        for (int i = 0; i < chunks.size(); i++) {
            boolean correct = false;
            ScriptChunk chunk = chunks.get(i);
            byte templateChunk = template[i];

            int op = templateChunk;
            if (op < 0) {
                op = op + 256;
            }
            if (op == 255) {
                if (chunk.isPushData()) {
                    if (Arrays.equals(chunk.data, parameters[parameter])) {
                        parameter++;
                        correct = true;
                    }
                }
            } else {
                if (chunk.opcode == op) {
                    correct = true;
                }
            }
            if (!correct) {
                return false;
            }

        }

        return true;
    }
Example 10
Source File: DefaultRiskAnalysis.java    From GreenBits with GNU General Public License v3.0 5 votes vote down vote up 
/**
 * Checks the output to see if the script violates a standardness rule. Not complete.
 */
public static RuleViolation isOutputStandard(TransactionOutput output) {
    if (output.getValue().compareTo(MIN_ANALYSIS_NONDUST_OUTPUT) < 0)
        return RuleViolation.DUST;
    for (ScriptChunk chunk : output.getScriptPubKey().getChunks()) {
        if (chunk.isPushData() && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
    }
    return RuleViolation.NONE;
}
Example 11
Source File: ScriptTools.java    From thundernetwork with GNU Affero General Public License v3.0 5 votes vote down vote up 
public static boolean testScript (byte[] script, byte[] template, byte[]... parameters) {

        Script s = new Script(script);
        List<ScriptChunk> chunks = s.getChunks();

        int parameter = 0;

        for (int i = 0; i < chunks.size(); i++) {
            boolean correct = false;
            ScriptChunk chunk = chunks.get(i);
            byte templateChunk = template[i];

            int op = templateChunk;
            if (op < 0) {
                op = op + 256;
            }
            if (op == 255) {
                if (chunk.isPushData()) {
                    if (Arrays.equals(chunk.data, parameters[parameter])) {
                        parameter++;
                        correct = true;
                    }
                }
            } else {
                if (chunk.opcode == op) {
                    correct = true;
                }
            }
            if (!correct) {
                return false;
            }

        }

        return true;
    }
Example 12
Source File: BisqRiskAnalysis.java    From bisq with GNU Affero General Public License v3.0 5 votes vote down vote up 
/**
 * Checks the output to see if the script violates a standardness rule. Not complete.
 */
public static RuleViolation isOutputStandard(TransactionOutput output) {
    // OP_RETURN has usually output value zero, so we exclude that from the MIN_ANALYSIS_NONDUST_OUTPUT check
    if (!output.getScriptPubKey().isOpReturn()
            && output.getValue().compareTo(MIN_ANALYSIS_NONDUST_OUTPUT) < 0)
        return RuleViolation.DUST;
    for (ScriptChunk chunk : output.getScriptPubKey().getChunks()) {
        if (chunk.isPushData() && !chunk.isShortestPossiblePushData())
            return RuleViolation.SHORTEST_POSSIBLE_PUSHDATA;
    }
    return RuleViolation.NONE;
}
Example 13
Source File: DumpTxList.java    From jelectrum with MIT License 4 votes vote down vote up 
public static void main(String args[]) throws Exception
{
  Jelectrum jelly = new Jelectrum(new Config(args[0]));

  Scanner scan = new Scanner(new FileInputStream(args[1]));

  PrintStream pout = new PrintStream(new FileOutputStream(args[2], false));

  TXUtil txutil = new TXUtil(jelly.getDB(), jelly.getNetworkParameters());

  while(scan.hasNext())
  {
    String hash = scan.next();
    Transaction tx = jelly.getDB().getTransaction(new Sha256Hash(hash)).getTx(jelly.getNetworkParameters());


    int in_idx =0;
    for(TransactionInput in : tx.getInputs())
    {
      Address addr = in.getFromAddress();

      byte[] h160 = addr.getHash160();

      pout.println("txin:" + hash + ":" + in_idx + ":" + Hex.encodeHexString(h160));

      in_idx++;

      /*System.out.println("Input: " + in);
      Script script = in.getScriptSig();
      for(ScriptChunk chunk : script.getChunks())
      {
        if (chunk.isOpCode())
        {
          System.out.println("    op " + chunk.opcode);
        }
        if (chunk.isPushData() && (chunk.data != null))
        {
          System.out.println("    data " + chunk.data.length);
        }

      }*/
    }
    pout.println("tx:" + hash + ":" + txutil.getTXBlockHeight(tx, jelly.getBlockChainCache()));

  for(TransactionOutput out : tx.getOutputs())
  {
    int idx = out.getIndex();
    Script script = out.getScriptPubKey();

    for(ScriptChunk chunk : script.getChunks())
    {
      if (chunk.isOpCode())
      {
        //System.out.println("    op " + chunk.opcode);
      }
      if (chunk.isPushData() && (chunk.data != null))
      {
        pout.println("txout:" + hash + ":" + idx + ":" + Hex.encodeHexString(chunk.data));
      }

    }


  }

  }

  pout.flush();
  pout.close();



}
Example 14
Source File: DumpTxList.java    From jelectrum with MIT License 4 votes vote down vote up 
public static boolean hasStrangeData(Transaction tx)
{
  try
  {
  boolean hasStrange = false;
  /*for(TransactionInput in : tx.getInputs())
  {
    Script script = in.getScriptSig();
    int data_in = 0;
     for(ScriptChunk chunk : script.getChunks())
    {
      if (chunk.isOpCode())
      {
      }
      if (chunk.isPushData() && (chunk.data != null))
      {
        data_in += chunk.data.length;
      }

    }
    if (data_in > 20) return true;

  }*/
  int extra_data = 0;

  for(TransactionOutput out : tx.getOutputs())
  {
    int data_out = 0;
    Script script = out.getScriptPubKey();

    for(ScriptChunk chunk : script.getChunks())
    {
      if (chunk.isOpCode())
      {
      }
      if (chunk.isPushData() && (chunk.data != null))
      {
        data_out += chunk.data.length;
      }

    }
    if (data_out > 20) extra_data += data_out;


  }

  if (extra_data > 20) return true;

  return false;
  }

  catch(Throwable t){return true;}


}
Example 15
Source File: DumpTx.java    From jelectrum with MIT License 4 votes vote down vote up 
public static boolean hasStrangeData(Transaction tx)
{
  try
  {
  boolean hasStrange = false;
  /*for(TransactionInput in : tx.getInputs())
  {
    Script script = in.getScriptSig();
    int data_in = 0;
     for(ScriptChunk chunk : script.getChunks())
    {
      if (chunk.isOpCode())
      {
      }
      if (chunk.isPushData() && (chunk.data != null))
      {
        data_in += chunk.data.length;
      }

    }
    if (data_in > 20) return true;

  }*/
  int extra_data = 0;

  for(TransactionOutput out : tx.getOutputs())
  {
    int data_out = 0;
    Script script = out.getScriptPubKey();

    for(ScriptChunk chunk : script.getChunks())
    {
      if (chunk.isOpCode())
      {
      }
      if (chunk.isPushData() && (chunk.data != null))
      {
        data_out += chunk.data.length;
      }

    }
    if (data_out > 20) extra_data += data_out;


  }

  if (extra_data > 20) return true;

  return false;
  }

  catch(Throwable t){return true;}


}