class Foo(object): def __init__(self, value, filename): self.value = value self.logfile = file(filename, 'w') def __getstate__(self): """Return state values to be pickled.""" f = self.logfile return (self.value, f.name, f.tell()) def __setstate__(self, state): """...
classFoo(object): def__init__(self, value): self.value = value 现在可以 pickleFoo实例,并看一下它的表示: 清单12. pickle Foo 实例 >>>importcPickle as pickle >>>fromOrbtech.examples.persistimportFoo >>> foo = Foo('What is a Foo?') >>> p = pickle.dumps(foo) >>>printp ccopy_...
TypeError Traceback (most recent call last) <ipython-input-8-593d2efd278e> in <module>() 1 dic = {"1": lambda : 1} ---> 2 cp.dump(dic, open("./lambda.pkl", "wb")) c:\python27\lib\copy_reg.pyc in _reduce_ex(self, proto) 68 else: 69 if base is self.__class__: ...
py 对引入的模块进行检测 class RestrictedUnpickler(pickle.Unpickler): def find_class(self, module, name): # Only allow safe classes if "guess_game" == module[0:10] and "__" not in name: return getattr(sys.modules[module], name) # Forbid everything else. raise pickle.UnpicklingError("...
File"<stdin>",line1,in<module> File"/Users/linhaifeng/anaconda3/lib/python3.5/json/__init__.py",line312,inloads s.__class__.__name__)) TypeError:theJSONobjectmustbestr,not'bytes' 1. 2. 3. 4. 5. 6. 7. 8. #一.什么是猴子补丁?
print("module imported") class DataWithState: def __init__(self): self.state = 'state' def __getstate__(self): print('getstate called') return {'state': 'state'} def __setstate__(self, state): print('setstate called')
class Bar: pass class MyUnpickler(pickle.Unpickler): def find_class(self, module, name): if module == "foo" and name == "Bar": return Bar else: return pickle.Unpickler.find_class(self, module, name) bars = MyUnpickler(open("objects.pkl")).load() Run Code Online (Sandbox Code Play...
默认抛出 UnpicklingError 异常。 如果定义了此方法,persistent_load() 应当返回持久化 ID pid 所指定的对象。 如果遇到无效的持久化 ID,则应当引发 UnpicklingError。 参阅 持久化外部对象 获取详情和使用示例。 find_class(module, name) 如有必要,导入 module 模块并返回其中名叫 name 的对象,其中 module 和 na...
这样就是一个最基础的 getshell 的构造,这里要回去看一下指令集,看一下这里用到的几种指令码。 其中c 操作码指向的实际上是一个self.find_class(modname, name);可以在源码中找到 deffind_class(self,module,name):# Subclasses may override this.ifself.proto<3andself.fix_imports:if(...
一般用于绕过 find_class 黑名单/白名单限制 pker用法 GLOBAL 对应opcode:b’c’ 获取module下的一个全局对象(没有import的也可以,比如下面的os): GLOBAL(‘os’, ‘system’) 输入:module,instance(callable、module都是instance) INST 对应opcode:b’i’ ...