com.strobel.decompiler.PlainTextOutput Java Examples

@Override
public String decompile(InputStream inputStream, String entryName) throws IOException {
  logger.debug("Decompiling... {}", entryName);
  File tempFile = createTempFile(entryName, inputStream);
  tempFile.deleteOnExit();

  String decompiledFileName = getDecompiledFileName(entryName);
  File decompiledFile = new File(decompiledFileName);
  decompiledFile.getParentFile().mkdirs();

  StringWriter pw = new StringWriter();
  try {
    com.strobel.decompiler.Decompiler.decompile(tempFile.getAbsolutePath(), new PlainTextOutput(pw));
  } catch (Exception e) {
    logger.info("Error while decompiling {}. " , entryName);
    throw e;
  }
  pw.flush();

  String decompiledFileContent = pw.toString();
  FileUtils.writeStringToFile(decompiledFile, decompiledFileContent);
  return decompiledFileContent;
}
 

/** {@inheritDoc} */
@Override
public File decompileClassFile(File inputClassFile) {

	//Default settings for the decompilers
	final DecompilerSettings settings = new DecompilerSettings();
	settings.setShowSyntheticMembers(true);
	settings.setSimplifyMemberReferences(true);
	settings.setExcludeNestedTypes(true);

	String classFilePath = inputClassFile.getPath();
	String fileNameWithOutExt = FilenameUtils.removeExtension(inputClassFile.getName());
	File outFile = new File(inputClassFile.getParent(), fileNameWithOutExt + ".java");

	try {

		final FileOutputStream stream = new FileOutputStream(outFile.toString());
		final OutputStreamWriter writer = new OutputStreamWriter(stream, FileUtil.getCharset());

		try {
			Decompiler.decompile(
					classFilePath,
					new PlainTextOutput(writer),
					settings
					);
		}
		finally {
			writer.close();
			stream.close();
		}
	}
	catch (final IOException e) {
		log.debug(e.getMessage());
	}

	return outFile;
}
 

@Override
public String decompile(String name) {
    ITypeLoader loader = new ComposedTypeLoader(Arrays.asList(
            new RecafTypeLoader(getController()), new InputTypeLoader()
    ));
    Map<String, Boolean> options = getOptions();
    DecompilerSettings settings = new DecompilerSettings();
    settings.setFlattenSwitchBlocks(options.get("flatten-switch-blocks"));
    settings.setForceExplicitImports(!options.get("collapse-imports"));
    settings.setForceExplicitTypeArguments(options.get("force-explicit-type-arguments"));
    settings.setRetainRedundantCasts(options.get("retain-redundant-casts"));
    settings.setShowSyntheticMembers(options.get("show-synthetic-members"));
    settings.setExcludeNestedTypes(options.get("exclude-nested-types"));
    settings.setRetainPointlessSwitches(options.get("retain-pointless-switches"));
    settings.setUnicodeOutputEnabled(options.get("unicode-output"));
    settings.setMergeVariables(options.get("merge-variables"));
    settings.setShowDebugLineNumbers(options.get("show-debug-line-numbers"));
    settings.setSimplifyMemberReferences(options.get("simplify-member-references"));
    settings.setForceFullyQualifiedReferences(options.get("force-fully-qualified-references"));
    settings.setDisableForEachTransforms(options.get("disable-for-each-transforms"));
    settings.setTypeLoader(loader);
    settings.setJavaFormattingOptions(JavaFormattingOptions.createDefault());
    MetadataSystem system = new MetadataSystem(loader);
    system.setEagerMethodLoadingEnabled(options.get("eager-methods-loading"));
    TypeReference ref = system.lookupType(name);
    DecompilationOptions decompilationOptions = new DecompilationOptions();
    decompilationOptions.setSettings(settings);
    decompilationOptions.setFullDecompilation(true);
    StringWriter writer = new StringWriter();
    settings.getLanguage().decompileType(ref.resolve(), new PlainTextOutput(writer), decompilationOptions);
    return writer.toString();
}
 

private void decompile(File classFile, File srcFolder) {
	try {
		File outputFile = convertClassFileToOutputFile(classFile, srcFolder);
		outputFile.getParentFile().mkdirs();
		PlainTextOutput output = new PlainTextOutput(new OutputStreamWriter(new FileOutputStream(outputFile.getAbsolutePath())));
		DecompilerSettings settings = DecompilerSettings.javaDefaults();
		settings.setForceExplicitImports(true);
		settings.setOutputFileHeaderText("Generated with Procyon v" + Procyon.version());

		Decompiler.decompile(classFile.getAbsolutePath(), output, settings);
	} catch (IOException ex) {
		Logger.error("Unable to decompile " + classFile.getAbsolutePath(), ex);
	}
}
 

private void decompile(File classFile, File srcFolder) {
	try {
		File outputFile = convertClassFileToOutputFile(classFile, srcFolder);
		outputFile.getParentFile().mkdirs();
		PlainTextOutput output = new PlainTextOutput(new OutputStreamWriter(new FileOutputStream(outputFile.getAbsolutePath())));
		DecompilerSettings settings = DecompilerSettings.javaDefaults();
		settings.setForceExplicitImports(true);
		settings.setOutputFileHeaderText("Generated with Procyon v" + Procyon.version());

		Decompiler.decompile(classFile.getAbsolutePath(), output, settings);
	} catch (IOException ex) {
		Logger.error("Unable to decompile " + classFile.getAbsolutePath(), ex);
	}
}
 

public void startWarmUpThread() {
	new Thread() {
		public void run() {
			try {
				Thread.sleep(500);
				String internalName = FindBox.class.getName();
				TypeReference type = metadataSystem.lookupType(internalName);
				TypeDefinition resolvedType = null;
				if ((type == null) || ((resolvedType = type.resolve()) == null)) {
					return;
				}
				StringWriter stringwriter = new StringWriter();
				PlainTextOutput plainTextOutput = new PlainTextOutput(stringwriter);
				plainTextOutput
						.setUnicodeOutputEnabled(decompilationOptions.getSettings().isUnicodeOutputEnabled());
				settings.getLanguage().decompileType(resolvedType, plainTextOutput, decompilationOptions);
				String decompiledSource = stringwriter.toString();
				OpenFile open = new OpenFile(internalName, "*/" + internalName, getTheme(), mainWindow);
				open.setContent(decompiledSource);
				JTabbedPane pane = new JTabbedPane();
				pane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
				pane.addTab("title", open.scrollPane);
				pane.setSelectedIndex(pane.indexOfTab("title"));
			} catch (Exception e) {
				Luyten.showExceptionDialog("Exception!", e);
			}
		}
	}.start();
}
 

private void decompileWithoutLinks() {
	this.invalidateContent();
	isNavigationLinksValid = false;
	textArea.setHyperlinksEnabled(false);

	StringWriter stringwriter = new StringWriter();
	PlainTextOutput plainTextOutput = new PlainTextOutput(stringwriter);
	plainTextOutput.setUnicodeOutputEnabled(decompilationOptions.getSettings().isUnicodeOutputEnabled());
	settings.getLanguage().decompileType(type, plainTextOutput, decompilationOptions);
	setContentPreserveLastScrollPosition(stringwriter.toString());
	this.isContentValid = true;
}
 

private void doSaveClassDecompiled(File inFile, File outFile) throws Exception {
	DecompilerSettings settings = cloneSettings();
	LuytenTypeLoader typeLoader = new LuytenTypeLoader();
	MetadataSystem metadataSystem = new MetadataSystem(typeLoader);
	TypeReference type = metadataSystem.lookupType(inFile.getCanonicalPath());

	DecompilationOptions decompilationOptions = new DecompilationOptions();
	decompilationOptions.setSettings(settings);
	decompilationOptions.setFullDecompilation(true);

	boolean isUnicodeEnabled = decompilationOptions.getSettings().isUnicodeOutputEnabled();
	TypeDefinition resolvedType = null;
	if (type == null || ((resolvedType = type.resolve()) == null)) {
		throw new Exception("Unable to resolve type.");
	}
	StringWriter stringwriter = new StringWriter();
	PlainTextOutput plainTextOutput = new PlainTextOutput(stringwriter);
	plainTextOutput.setUnicodeOutputEnabled(isUnicodeEnabled);
	settings.getLanguage().decompileType(resolvedType, plainTextOutput, decompilationOptions);
	String decompiledSource = stringwriter.toString();

	System.out.println("[SaveAll]: " + inFile.getName() + " -> " + outFile.getName());
	try (FileOutputStream fos = new FileOutputStream(outFile);
			OutputStreamWriter writer = isUnicodeEnabled ? new OutputStreamWriter(fos, "UTF-8")
					: new OutputStreamWriter(fos);
			BufferedWriter bw = new BufferedWriter(writer);) {
		bw.write(decompiledSource);
		bw.flush();
	}
}
 

public String decompile(byte[] b, MethodNode mn) {
  try {
  //TODO decompile method only
    DecompilerSettings settings = new DecompilerSettings();
    try {
      for (Field f : settings.getClass().getDeclaredFields()) {
        if (f.getType() == boolean.class) {
          f.setAccessible(true);
          f.setBoolean(settings, JByteMod.ops.get("procyon" + f.getName()).getBoolean());
        }
      }
    } catch (Throwable t) {
      t.printStackTrace();
    }
    settings.setShowSyntheticMembers(true);
    MetadataSystem metadataSystem = new MetadataSystem(new ITypeLoader() {
      private InputTypeLoader backLoader = new InputTypeLoader();

      @Override
      public boolean tryLoadType(String s, Buffer buffer) {
        if (s.equals(cn.name)) {
          buffer.putByteArray(b, 0, b.length);
          buffer.position(0);
          return true;
        } else {
          return backLoader.tryLoadType(s, buffer);
        }
      }
    });
    TypeReference type = metadataSystem.lookupType(cn.name);
    DecompilationOptions decompilationOptions = new DecompilationOptions();
    decompilationOptions.setSettings(DecompilerSettings.javaDefaults());
    decompilationOptions.setFullDecompilation(true);
    TypeDefinition resolvedType = null;
    if (type == null || ((resolvedType = type.resolve()) == null)) {
      new ErrorDisplay("Unable to resolve type.");
      return "error";
    }
    StringWriter stringwriter = new StringWriter();
    settings.getLanguage().decompileType(resolvedType, new PlainTextOutput(stringwriter), decompilationOptions);
    String decompiledSource = stringwriter.toString();
    return decompiledSource;
  } catch (Exception e) {
    e.printStackTrace();
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    e.printStackTrace(pw);
    return sw.toString();
  }
}
 

@Override
public String decompileClassNode(FileContainer container, final ClassNode cn) {
    try {
        byte[] bytes = JDA.getClassBytes(container, cn);
        MetadataSystem metadataSystem = new MetadataSystem(new ITypeLoader() {
            private InputTypeLoader backLoader = new InputTypeLoader();

            @Override
            public boolean tryLoadType(String s, Buffer buffer) {
                if (s.equals(cn.name)) {
                    buffer.putByteArray(bytes, 0, bytes.length);
                    buffer.position(0);
                    return true;
                } else {
                    String classFilename = s + ".class";
                    FileContainer otherContainer = JDA.findContainerForFile(classFilename);
                    if (otherContainer != null) {
                        byte[] toUse = otherContainer.getFiles().get(classFilename);
                        if (toUse != null) {
                            buffer.putByteArray(toUse, 0, toUse.length);
                            buffer.position(0);
                            return true;
                        }
                    }
                    return backLoader.tryLoadType(s, buffer);
                }
            }
        });
        TypeReference type = metadataSystem.lookupType(cn.name);
        DecompilationOptions decompilationOptions = new DecompilationOptions();
        DecompilerSettings settings = getDecompilerSettings();
        decompilationOptions.setSettings(settings);
        decompilationOptions.setFullDecompilation(true);
        TypeDefinition resolvedType;
        if (type == null || ((resolvedType = type.resolve()) == null)) {
            throw new Exception("Unable to resolve type.");
        }
        StringWriter stringwriter = new StringWriter();
        settings.getLanguage().decompileType(resolvedType, new PlainTextOutput(stringwriter), decompilationOptions);
        String decompiledSource = stringwriter.toString();
        return decompiledSource;
    } catch (Throwable e) {
        return parseException(e);
    }
}
 

@Override
public void actionPerformed(ActionEvent event) {
	tmp_thread = new Thread() {
		public void run() {
			if (findButton.getText().equals("Stop")) {
				if (tmp_thread != null)
					tmp_thread.interrupt();
				setStatus("Stopped.");
				findButton.setText("Find");
				locked = false;
			} else {
				findButton.setText("Stop");
				classesList.clear();
				ConfigSaver configSaver = ConfigSaver.getLoadedInstance();
				DecompilerSettings settings = configSaver.getDecompilerSettings();
				File inFile = MainWindow.model.getOpenedFile();
				boolean filter = ConfigSaver.getLoadedInstance().getLuytenPreferences()
						.isFilterOutInnerClassEntries();
				try {
					JarFile jfile = new JarFile(inFile);
					Enumeration<JarEntry> entLength = jfile.entries();
					initProgressBar(Collections.list(entLength).size());
					Enumeration<JarEntry> ent = jfile.entries();
					while (ent.hasMoreElements() && findButton.getText().equals("Stop")) {
						JarEntry entry = ent.nextElement();
						String name = entry.getName();
						setStatus(name);
						if (filter && name.contains("$"))
							continue;
						if(locked || classname.isSelected()){
							locked = true;
							if(search(entry.getName()))
								addClassName(entry.getName());
						}else{
							if (entry.getName().endsWith(".class")) {
								synchronized (settings) {
									String internalName = StringUtilities.removeRight(entry.getName(), ".class");
									TypeReference type = Model.metadataSystem.lookupType(internalName);
									TypeDefinition resolvedType = null;
									if (type == null || ((resolvedType = type.resolve()) == null)) {
										throw new Exception("Unable to resolve type.");
									}
									StringWriter stringwriter = new StringWriter();
									DecompilationOptions decompilationOptions;
									decompilationOptions = new DecompilationOptions();
									decompilationOptions.setSettings(settings);
									decompilationOptions.setFullDecompilation(true);
									PlainTextOutput plainTextOutput = new PlainTextOutput(stringwriter);
									plainTextOutput.setUnicodeOutputEnabled(
											decompilationOptions.getSettings().isUnicodeOutputEnabled());
									settings.getLanguage().decompileType(resolvedType, plainTextOutput,
											decompilationOptions);
									if (search(stringwriter.toString()))
										addClassName(entry.getName());
								}
							} else {

								StringBuilder sb = new StringBuilder();
								long nonprintableCharactersCount = 0;
								try (InputStreamReader inputStreamReader = new InputStreamReader(
										jfile.getInputStream(entry));
										BufferedReader reader = new BufferedReader(inputStreamReader);) {
									String line;
									while ((line = reader.readLine()) != null) {
										sb.append(line).append("\n");

										for (byte nextByte : line.getBytes()) {
											if (nextByte <= 0) {
												nonprintableCharactersCount++;
											}
										}

									}
								}
								if (nonprintableCharactersCount < 5 && search(sb.toString()))
									addClassName(entry.getName());
							}
						}
					}
					setSearching(false);
					if (findButton.getText().equals("Stop")) {
						setStatus("Done.");
						findButton.setText("Find");
						locked = false;
					}
					jfile.close();
					locked = false;
				} catch (Exception e) {
					Luyten.showExceptionDialog("Exception!", e);
				}

			}
		}
	};
	tmp_thread.start();

}
 

private String decompileToStringCommon(String className) {
  PlainTextOutput pto = new PlainTextOutput();
  String classNameSlashes = className.replace('.', '/');
  Decompiler.decompile(classNameSlashes, pto, decompilerSettings);
  return pto.toString(); 
}