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61 lines
2.2 KiB
Python
61 lines
2.2 KiB
Python
'''
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Created on 6 May 2013
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@author: mike
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'''
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import copy
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from volatility.framework import validity
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from volatility.framework.interfaces import context as context_module
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class ObjectInterface(validity.ValidityRoutines):
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""" A base object required to be the ancestor of every object used in volatility """
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def __init__(self, context, layer_name, offset, symbol_name, size, parent = None):
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# Since objects are likely to be instantiated often,
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# we're only checking that a context is a context
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# Everything else may be wrong, but that will get caught later on
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self._context = self.type_check(context, context_module.ContextInterface)
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self._parent = None if not parent else self.type_check(parent, ObjectInterface)
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self._offset = offset
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self._layer_name = layer_name
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self._symbol_name = symbol_name
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self._size = size
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def write(self, value):
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"""Writes the new value into the format at the offset the object currently resides at"""
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def cast(self, new_symbol_name):
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"""Returns a new object at the offset and from the layer that the current object inhabits"""
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object_template = self._context.symbol_space.resolve(new_symbol_name)
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return object_template(context = self._context, layer_name = self._layer_name, offset = self._offset)
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class Template(object):
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"""Class for all Factories that take offsets, and data layers and produce objects
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This is effectively a class for currying object calls
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"""
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def __init__(self, symbol_name = None, **kwargs):
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"""Stores the keyword arguments for later use"""
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self._kwargs = kwargs
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self._symbol_name = symbol_name
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@property
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def symbol_name(self):
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"""Returns the name of the particular symbol"""
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return self._symbol_name
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@property
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def arguments(self):
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"""Returns the keyword arguments stored earlier"""
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return copy.deepcopy(self._kwargs)
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def update_arguments(self, **newargs):
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"""Updates the keyword arguments"""
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self._kwargs.update(newargs)
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def __call__(self, context, layer_name, offset, parent = None):
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"""Constructs the object
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Returns: an object adhereing to the Object interface
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"""
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