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JavaP Disassembler Improvements

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Uses the new Temp Files API. Better failing. Refactoring.
This commit is contained in:
Konloch 2024-10-02 12:38:13 -06:00
parent 3f45802257
commit 7fa7978691

AI 샘플 코드 생성 중입니다

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1 changed files with 44 additions and 27 deletions
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71
src/main/java/the/bytecode/club/bytecodeviewer/decompilers/impl/JavapDisassembler.java
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@ -22,24 +22,27 @@ import me.konloch.kontainer.io.DiskWriter;
import org.objectweb.asm.tree.ClassNode;
import the.bytecode.club.bytecodeviewer.BytecodeViewer;
import the.bytecode.club.bytecodeviewer.Configuration;
import the.bytecode.club.bytecodeviewer.Constants;
import the.bytecode.club.bytecodeviewer.api.ExceptionUI;
import the.bytecode.club.bytecodeviewer.decompilers.AbstractDecompiler;
import the.bytecode.club.bytecodeviewer.gui.components.JFrameConsolePrintStream;
import the.bytecode.club.bytecodeviewer.resources.ExternalResources;
import the.bytecode.club.bytecodeviewer.translation.TranslatedStrings;
import the.bytecode.club.bytecodeviewer.util.MiscUtils;
import the.bytecode.club.bytecodeviewer.util.TempFile;
import java.io.File;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import static the.bytecode.club.bytecodeviewer.Constants.FS;
import static the.bytecode.club.bytecodeviewer.api.ExceptionUI.SEND_STACKTRACE_TO;
import static the.bytecode.club.bytecodeviewer.Constants.NL;
import static the.bytecode.club.bytecodeviewer.translation.TranslatedStrings.ERROR;
/**
* Javap disassembler
* <p>
*
* https://github.com/Konloch/bytecode-viewer/issues/93
*
* @author Konloch
@ -59,21 +62,23 @@ public class JavapDisassembler extends AbstractDecompiler
if (!ExternalResources.getSingleton().hasJavaToolsSet())
return "Set Java Tools Path!";
return synchronizedDecompilation(cn, bytes);
return disassembleJavaP(cn, bytes);
}
private synchronized String synchronizedDecompilation(ClassNode cn, byte[] b)
private synchronized String disassembleJavaP(ClassNode cn, byte[] b)
{
final File tempDirectory = new File(Constants.TEMP_DIRECTORY + FS + MiscUtils.randomString(32) + FS);
final File tempClass = new File(Constants.TEMP_DIRECTORY + FS + "temp" + MiscUtils.randomString(32) + ".class");
tempDirectory.mkdir();
DiskWriter.replaceFileBytes(tempClass.getAbsolutePath(), b, false);
TempFile tempFile = null;
String exception = "This decompiler didn't throw an exception - this is probably a BCV logical bug";
JFrameConsolePrintStream sysOutBuffer = null;
try
{
tempFile = TempFile.createTemporaryFile(true, ".class");
File tempClassFile = tempFile.getFile();
DiskWriter.replaceFileBytes(tempClassFile.getAbsolutePath(), b, false);
//load java tools into a temporary classloader
URLClassLoader child = new URLClassLoader(new URL[]{new File(Configuration.javaTools).toURI().toURL()}, this.getClass().getClassLoader());
@ -88,33 +93,45 @@ public class JavapDisassembler extends AbstractDecompiler
BytecodeViewer.sm.silenceExec(true);
//invoke Javap
main.invoke(null, (Object) new String[]{"-p", //Shows all classes and members
"-c", //Prints out disassembled code
//"-l", //Prints out line and local variable tables
"-constants", //Shows static final constants
tempClass.getAbsolutePath()});
try
{
main.invoke(null, (Object) new String[]{"-p", //Shows all classes and members
"-c", //Prints out disassembled code
//"-l", //Prints out line and local variable tables
"-constants", //Shows static final constants
tempClassFile.getAbsolutePath()});
}
catch (InvocationTargetException e)
{
//expected warning behaviour on modern JDKs (17+)
}
//return output
sysOutBuffer.finished();
return sysOutBuffer.getTextAreaOutputStreamOut().getBuffer().toString();
}
catch (IllegalAccessException e)
{
return TranslatedStrings.ILLEGAL_ACCESS_ERROR.toString();
}
catch (Exception e)
catch (Throwable e)
{
StringWriter exceptionWriter = new StringWriter();
e.printStackTrace(new PrintWriter(exceptionWriter));
e.printStackTrace();
exception += NL + NL + exceptionWriter;
}
finally
{
BytecodeViewer.sm.silenceExec(false);
tempClass.delete();
if(tempFile != null)
tempFile.delete();
}
if (sysOutBuffer != null)
{
sysOutBuffer.finished();
return sysOutBuffer.getTextAreaOutputStreamOut().getBuffer().toString();
}
return SEND_STACKTRACE_TO;
return "JavaP " + ERROR + "! " + ExceptionUI.SEND_STACKTRACE_TO + NL + NL
+ TranslatedStrings.SUGGESTED_FIX_DECOMPILER_ERROR + NL + NL + exception;
}
@Override