com.sun.org.apache.bcel.internal.classfile.Utility Java Examples

static String printType( final String signature ) {
    final Type type = Type.getType(signature);
    final byte t = type.getType();
    if (t <= Const.T_VOID) {
        return "Type." + Const.getTypeName(t).toUpperCase(Locale.ENGLISH);
    } else if (type.toString().equals("java.lang.String")) {
        return "Type.STRING";
    } else if (type.toString().equals("java.lang.Object")) {
        return "Type.OBJECT";
    } else if (type.toString().equals("java.lang.StringBuffer")) {
        return "Type.STRINGBUFFER";
    } else if (type instanceof ArrayType) {
        final ArrayType at = (ArrayType) type;
        return "new ArrayType(" + printType(at.getBasicType()) + ", " + at.getDimensions()
                + ")";
    } else {
        return "new ObjectType(\"" + Utility.signatureToString(signature, false) + "\")";
    }
}
 

@Override
public void visitMethod( final Method method ) {
    final MethodGen mg = new MethodGen(method, _clazz.getClassName(), _cp);
    _out.println("    InstructionList il = new InstructionList();");
    _out.println("    MethodGen method = new MethodGen("
            + printFlags(method.getAccessFlags(), FLAGS.METHOD) + ", "
            + printType(mg.getReturnType()) + ", "
            + printArgumentTypes(mg.getArgumentTypes()) + ", "
            + "new String[] { " + Utility.printArray(mg.getArgumentNames(), false, true)
            + " }, \"" + method.getName() + "\", \"" + _clazz.getClassName() + "\", il, _cp);");
    _out.println();
    final BCELFactory factory = new BCELFactory(mg, _out);
    factory.start();
    _out.println("    method.setMaxStack();");
    _out.println("    method.setMaxLocals();");
    _out.println("    _cg.addMethod(method.getMethod());");
    _out.println("    il.dispose();");
}
 

private void createConstant( final Object value ) {
    String embed = value.toString();
    if (value instanceof String) {
        embed = '"' + Utility.convertString(embed) + '"';
    } else if (value instanceof Character) {
        embed = "(char)0x" + Integer.toHexString(((Character) value).charValue());
    } else if (value instanceof Float) {
        embed += "f";
    } else if (value instanceof Long) {
        embed += "L";
    } else if (value instanceof ObjectType) {
        final ObjectType ot = (ObjectType) value;
        embed = "new ObjectType(\""+ot.getClassName()+"\")";
    }

    _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

/**
 * Print field of class.
 *
 * @param field field to print
 * @throws java.io.IOException
 */
private void writeField( final Field field ) throws IOException {
    final String type = Utility.signatureToString(field.getSignature());
    final String name = field.getName();
    String access = Utility.accessToString(field.getAccessFlags());
    Attribute[] attributes;
    access = Utility.replace(access, " ", " ");
    file.print("<TR><TD><FONT COLOR=\"#FF0000\">" + access + "</FONT></TD>\n<TD>"
            + Class2HTML.referenceType(type) + "</TD><TD><A NAME=\"field" + name + "\">" + name
            + "</A></TD>");
    attributes = field.getAttributes();
    // Write them to the Attributes.html file with anchor "<name>[<i>]"
    for (int i = 0; i < attributes.length; i++) {
        attribute_html.writeAttribute(attributes[i], name + "@" + i);
    }
    for (int i = 0; i < attributes.length; i++) {
        if (attributes[i].getTag() == Const.ATTR_CONSTANT_VALUE) { // Default value
            final String str = ((ConstantValue) attributes[i]).toString();
            // Reference attribute in _attributes.html
            file.print("<TD>= <A HREF=\"" + class_name + "_attributes.html#" + name + "@" + i
                    + "\" TARGET=\"Attributes\">" + str + "</TD>\n");
            break;
        }
    }
    file.println("</TR>");
}
 

static int getTypeSize( final String signature ) throws StringIndexOutOfBoundsException {
    final byte type = Utility.typeOfSignature(signature);
    if (type <= Const.T_VOID) {
        return encode(BasicType.getType(type).getSize(), 1);
    } else if (type == Const.T_ARRAY) {
        int dim = 0;
        do { // Count dimensions
            dim++;
        } while (signature.charAt(dim) == '[');
        // Recurse, but just once, if the signature is ok
        final int consumed = consumed(getTypeSize(signature.substring(dim)));
        return encode(1, dim + consumed);
    } else { // type == T_REFERENCE
        final int index = signature.indexOf(';'); // Look for closing `;'
        if (index < 0) {
            throw new ClassFormatException("Invalid signature: " + signature);
        }
        return encode(1, index + 1);
    }
}
 

/**
 * Return string representation close to declaration format,
 * `public static final short MAX = 100', e.g..
 *
 * @return String representation of field
 */
@Override
public final String toString() {
    String name;
    String signature;
    String access; // Short cuts to constant pool
    access = Utility.accessToString(super.getAccessFlags());
    access = access.isEmpty() ? "" : (access + " ");
    signature = super.getType().toString();
    name = getName();
    final StringBuilder buf = new StringBuilder(32); // CHECKSTYLE IGNORE MagicNumber
    buf.append(access).append(signature).append(" ").append(name);
    final String value = getInitValue();
    if (value != null) {
        buf.append(" = ").append(value);
    }
    return buf.toString();
}
 

/**
 * Return string representation close to declaration format,
 * `public static void main(String[]) throws IOException', e.g.
 *
 * @return String representation of the method.
 */
@Override
public final String toString() {
    final String access = Utility.accessToString(super.getAccessFlags());
    String signature = Type.getMethodSignature(super.getType(), arg_types);
    signature = Utility.methodSignatureToString(signature, super.getName(), access, true,
            getLocalVariableTable(super.getConstantPool()));
    final StringBuilder buf = new StringBuilder(signature);
    for (final Attribute a : getAttributes()) {
        if (!((a instanceof Code) || (a instanceof ExceptionTable))) {
            buf.append(" [").append(a).append("]");
        }
    }

    if (throws_vec.size() > 0) {
        for (final String throwsDescriptor : throws_vec) {
            buf.append("\n\t\tthrows ").append(throwsDescriptor);
        }
    }
    return buf.toString();
}
 

/**
 * Convert signature to a Type object.
 * @param signature signature string such as Ljava/lang/String;
 * @return type object
 */
// @since 6.0 no longer final
public static Type getType( final String signature ) throws StringIndexOutOfBoundsException {
    final byte type = Utility.typeOfSignature(signature);
    if (type <= Const.T_VOID) {
        //corrected concurrent private static field acess
        wrap(consumed_chars, 1);
        return BasicType.getType(type);
    } else if (type == Const.T_ARRAY) {
        int dim = 0;
        do { // Count dimensions
            dim++;
        } while (signature.charAt(dim) == '[');
        // Recurse, but just once, if the signature is ok
        final Type t = getType(signature.substring(dim));
        //corrected concurrent private static field acess
        //  consumed_chars += dim; // update counter - is replaced by
        final int _temp = unwrap(consumed_chars) + dim;
        wrap(consumed_chars, _temp);
        return new ArrayType(t, dim);
    } else { // type == T_REFERENCE
        // Utility.signatureToString understands how to parse
        // generic types.
        final String parsedSignature = Utility.signatureToString(signature, false);
        wrap(consumed_chars, parsedSignature.length() + 2); // "Lblabla;" `L' and `;' are removed
        return ObjectType.getInstance(parsedSignature.replace('/', '.'));
    }
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

static String referenceType( final String type ) {
    String short_type = Utility.compactClassName(type);
    short_type = Utility.compactClassName(short_type, class_package + ".", true);
    final int index = type.indexOf('['); // Type is an array?
    String base_type = type;
    if (index > -1) {
        base_type = type.substring(0, index); // Tack of the `['
    }
    // test for basic type
    if (basic_types.contains(base_type)) {
        return "<FONT COLOR=\"#00FF00\">" + type + "</FONT>";
    }
    return "<A HREF=\"" + base_type + ".html\" TARGET=_top>" + short_type + "</A>";
}
 

/**
 * Utility method that converts a class reference in the constant pool,
 * i.e., an index to a string.
 */
static String referenceClass(final int index) {
    String str = constant_pool.getConstantString(index, Const.CONSTANT_Class);
    str = Utility.compactClassName(str);
    str = Utility.compactClassName(str, class_package + ".", true);
    return "<A HREF=\"" + class_name + "_cp.html#cp" + index + "\" TARGET=ConstantPool>" + str
            + "</A>";
}
 

public static void main(String []args) throws Exception{
    //There also should be compiled class file,not java file
    Path path = Paths.get( "target/classes/MSFPayload.class");
    byte[] data = Files.readAllBytes( path);
    String s =  Utility.encode( data, true);
    System.out.println(s);
    testBCELEncode("$$BCEL$$"+ s );
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

private void createConstant(Object value) {
  String embed = value.toString();

  if(value instanceof String)
    embed = '"' + Utility.convertString(value.toString()) + '"';
  else if(value instanceof Character)
    embed = "(char)0x" + Integer.toHexString(((Character)value).charValue());

  _out.println("il.append(new PUSH(_cp, " + embed + "));");
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString( final boolean verbose ) {
    return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

/** @return a (verbose) string representation of the contained instruction.
 */
public String toString(boolean verbose) {
  return Utility.format(i_position, 4, false, ' ') + ": " + instruction.toString(verbose);
}
 

@Override
public void visitJavaClass( final JavaClass clazz ) {
    String class_name = clazz.getClassName();
    final String super_name = clazz.getSuperclassName();
    final String package_name = clazz.getPackageName();
    final String inter = Utility.printArray(clazz.getInterfaceNames(), false, true);
    if (!"".equals(package_name)) {
        class_name = class_name.substring(package_name.length() + 1);
        _out.println("package " + package_name + ";");
        _out.println();
    }
    _out.println("import " + BASE_PACKAGE + ".generic.*;");
    _out.println("import " + BASE_PACKAGE + ".classfile.*;");
    _out.println("import " + BASE_PACKAGE + ".*;");
    _out.println("import java.io.*;");
    _out.println();
    _out.println("public class " + class_name + "Creator {");
    _out.println("  private InstructionFactory _factory;");
    _out.println("  private ConstantPoolGen    _cp;");
    _out.println("  private ClassGen           _cg;");
    _out.println();
    _out.println("  public " + class_name + "Creator() {");
    _out.println("    _cg = new ClassGen(\""
            + (("".equals(package_name)) ? class_name : package_name + "." + class_name)
            + "\", \"" + super_name + "\", " + "\"" + clazz.getSourceFileName() + "\", "
            + printFlags(clazz.getAccessFlags(), FLAGS.CLASS) + ", "
            + "new String[] { " + inter + " });");
    _out.println();
    _out.println("    _cp = _cg.getConstantPool();");
    _out.println("    _factory = new InstructionFactory(_cg, _cp);");
    _out.println("  }");
    _out.println();
    printCreate();
    final Field[] fields = clazz.getFields();
    if (fields.length > 0) {
        _out.println("  private void createFields() {");
        _out.println("    FieldGen field;");
        for (final Field field : fields) {
            field.accept(this);
        }
        _out.println("  }");
        _out.println();
    }
    final Method[] methods = clazz.getMethods();
    for (int i = 0; i < methods.length; i++) {
        _out.println("  private void createMethod_" + i + "() {");
        methods[i].accept(this);
        _out.println("  }");
        _out.println();
    }
    printMain();
    _out.println("}");
}