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#!/usr/bin/python
# -- Content-Encoding: utf-8 --
"""
Definition of the beans of the v1 parser
:authors: Volodymyr Buell, Thomas Calmant
:license: Apache License 2.0
:version: 0.4.4
:status: Alpha
..
Copyright 2024 Thomas Calmant
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.
"""
from __future__ import absolute_import
from typing import List
import struct
from ..utils import UNICODE_TYPE
# ------------------------------------------------------------------------------
__all__ = (
"JavaArray",
"JavaByteArray",
"JavaClass",
"JavaEnum",
"JavaObject",
"JavaString",
)
# Module version
__version_info__ = (0, 4, 4)
__version__ = ".".join(str(x) for x in __version_info__)
# Documentation strings format
__docformat__ = "restructuredtext en"
# ------------------------------------------------------------------------------
class JavaClass(object): # pylint:disable=R0205
"""
Represents a class in the Java world
"""
def __init__(self):
"""
Sets up members
"""
self.name = None # type: str
self.serialVersionUID = None # type: int # pylint:disable=C0103
self.flags = None # type: int
self.fields_names = [] # type: List[str]
self.fields_types = [] # type: List[JavaString]
self.superclass = None # type: JavaClass
def __str__(self):
"""
String representation of the Java class
"""
return self.__repr__()
def __repr__(self):
"""
String representation of the Java class
"""
return "[{0:s}:0x{1:X}]".format(self.name, self.serialVersionUID)
def __eq__(self, other):
"""
Equality test between two Java classes
:param other: Other JavaClass to test
:return: True if both classes share the same fields and name
"""
if not isinstance(other, type(self)):
return False
return (
self.name == other.name
and self.serialVersionUID == other.serialVersionUID
and self.flags == other.flags
and self.fields_names == other.fields_names
and self.fields_types == other.fields_types
and self.superclass == other.superclass
)
class JavaObject(object): # pylint:disable=R0205
"""
Represents a deserialized non-primitive Java object
"""
def __init__(self):
"""
Sets up members
"""
self.classdesc = None # type: JavaClass
self.annotations = []
def get_class(self):
"""
Returns the JavaClass that defines the type of this object
"""
return self.classdesc
def __str__(self):
"""
String representation
"""
return self.__repr__()
def __repr__(self):
"""
String representation
"""
name = "UNKNOWN"
if self.classdesc:
name = self.classdesc.name
return "<javaobj:{0}>".format(name)
def __hash__(self):
"""
Each JavaObject we load must have a hash method to be accepted in sets
and alike. The default hash is the memory address of the object.
"""
return id(self)
def __eq__(self, other):
"""
Equality test between two Java classes
:param other: Other JavaClass to test
:return: True if both classes share the same fields and name
"""
if not isinstance(other, type(self)):
return False
res = (
self.classdesc == other.classdesc
and self.annotations == other.annotations
)
if not res:
return False
for name in self.classdesc.fields_names:
if not getattr(self, name) == getattr(other, name):
return False
return True
class JavaString(UNICODE_TYPE):
"""
Represents a Java String
"""
def __hash__(self):
return UNICODE_TYPE.__hash__(self)
def __eq__(self, other):
if not isinstance(other, UNICODE_TYPE):
return False
return UNICODE_TYPE.__eq__(self, other)
class JavaEnum(JavaObject):
"""
Represents a Java enumeration
"""
def __init__(self, constant=None):
super(JavaEnum, self).__init__()
self.constant = constant
class JavaArray(list, JavaObject):
"""
Represents a Java Array
"""
def __init__(self, classdesc=None):
list.__init__(self)
JavaObject.__init__(self)
self.classdesc = classdesc
def __hash__(self):
return list.__hash__(self)
class JavaByteArray(JavaObject):
"""
Represents the special case of Java Array which contains bytes
"""
def __init__(self, data, classdesc=None):
JavaObject.__init__(self)
self._data = struct.unpack("b" * len(data), data)
self.classdesc = classdesc
def __str__(self):
return "JavaByteArray({0})".format(self._data)
def __getitem__(self, item):
return self._data[item]
def __iter__(self):
return iter(self._data)
def __len__(self):
return len(self._data)
|
