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besu/src/main/java/org/hyperledger/besu/cli/subcommands/TxParseSubCommand.java
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| @@ -0,0 +1,129 @@ | ||
| /* | ||
| * Copyright Hyperledger Besu Contributors. | ||
| * | ||
| * 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. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
| package org.hyperledger.besu.cli.subcommands; | ||
|
|
||
| import static java.nio.charset.StandardCharsets.UTF_8; | ||
| import static org.hyperledger.besu.cli.subcommands.TxParseSubCommand.COMMAND_NAME; | ||
|
|
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| import org.hyperledger.besu.cli.util.VersionProvider; | ||
| import org.hyperledger.besu.crypto.SignatureAlgorithmFactory; | ||
| import org.hyperledger.besu.ethereum.core.encoding.EncodingContext; | ||
| import org.hyperledger.besu.ethereum.core.encoding.TransactionDecoder; | ||
|
|
||
| import java.io.BufferedReader; | ||
| import java.io.InputStreamReader; | ||
| import java.io.PrintWriter; | ||
| import java.math.BigInteger; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Paths; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import org.apache.tuweni.bytes.Bytes; | ||
| import picocli.CommandLine; | ||
|
|
||
| /** | ||
| * txparse sub command implementing txparse spec from | ||
| * https://github.com/holiman/txparse/tree/main/cmd/txparse | ||
| */ | ||
| @CommandLine.Command( | ||
| name = COMMAND_NAME, | ||
| description = "Parse input transactions and return the sender, or an error.", | ||
| mixinStandardHelpOptions = true, | ||
| versionProvider = VersionProvider.class) | ||
| public class TxParseSubCommand implements Runnable { | ||
|
|
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| /** The constant COMMAND_NAME. */ | ||
| public static final String COMMAND_NAME = "txparse"; | ||
|
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| @SuppressWarnings({"FieldCanBeFinal", "FieldMayBeFinal"}) // PicoCLI requires non-final Strings. | ||
| @CommandLine.Option( | ||
| names = "--corpus-file", | ||
| arity = "1..1", | ||
| description = "file to read transaction data lines from, otherwise defaults to stdin") | ||
| private String corpusFile = null; | ||
|
|
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| static final BigInteger halfCurveOrder = | ||
| SignatureAlgorithmFactory.getInstance().getHalfCurveOrder(); | ||
| static final BigInteger chainId = new BigInteger("1", 10); | ||
|
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| private final PrintWriter out; | ||
|
|
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| /** | ||
| * Instantiates a new TxParse sub command. | ||
| * | ||
| * @param out the PrintWriter where validation results will be reported. | ||
| */ | ||
| public TxParseSubCommand(final PrintWriter out) { | ||
| this.out = out; | ||
| } | ||
|
|
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| @SuppressWarnings("StreamResourceLeak") | ||
| Stream<String> fileStreamReader(final String filePath) { | ||
| try { | ||
| return Files.lines(Paths.get(filePath)) | ||
| // skip comments | ||
| .filter(line -> !line.startsWith("#")) | ||
| // strip out non-alphanumeric characters | ||
| .map(line -> line.replaceAll("[^a-zA-Z0-9]", "")); | ||
| } catch (Exception ex) { | ||
| throw new RuntimeException(ex); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public void run() { | ||
|
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| Stream<String> txStream; | ||
| if (corpusFile != null) { | ||
| txStream = fileStreamReader(corpusFile); | ||
| } else { | ||
| txStream = new BufferedReader(new InputStreamReader(System.in, UTF_8)).lines(); | ||
| } | ||
|
|
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| txStream.forEach( | ||
| line -> { | ||
| try { | ||
| Bytes bytes = Bytes.fromHexStringLenient(line); | ||
| dump(bytes); | ||
| } catch (Exception ex) { | ||
| err(ex.getMessage()); | ||
| } | ||
| }); | ||
| } | ||
|
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| void dump(final Bytes tx) { | ||
| try { | ||
| var transaction = TransactionDecoder.decodeOpaqueBytes(tx, EncodingContext.BLOCK_BODY); | ||
|
|
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| // https://github.com/hyperledger/besu/blob/5fe49c60b30fe2954c7967e8475c3b3e9afecf35/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetTransactionValidator.java#L252 | ||
| if (transaction.getChainId().isPresent() && !transaction.getChainId().get().equals(chainId)) { | ||
| throw new Exception("wrong chain id"); | ||
| } | ||
|
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| // https://github.com/hyperledger/besu/blob/5fe49c60b30fe2954c7967e8475c3b3e9afecf35/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/mainnet/MainnetTransactionValidator.java#L270 | ||
| if (transaction.getS().compareTo(halfCurveOrder) > 0) { | ||
| throw new Exception("signature s out of range"); | ||
| } | ||
| out.println(transaction.getSender()); | ||
|
|
||
| } catch (Exception ex) { | ||
| err(ex.getMessage()); | ||
| } | ||
| } | ||
|
|
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| void err(final String message) { | ||
| out.println("err: " + message); | ||
| } | ||
| } |
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