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jinja2
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sandbox.cpython-310.pyc
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This is useful if the environment method :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden. >>> from jinja2.sandbox import is_internal_attribute >>> is_internal_attribute(str, "mro") True >>> is_internal_attribute(str, "upper") False T�mro� CoroutineType�AsyncGeneratorType�__)� isinstance�types� FunctionTyper � MethodTyper �type�CodeType� TracebackType� FrameType� GeneratorType�UNSAFE_GENERATOR_ATTRIBUTES�hasattrr< �UNSAFE_COROUTINE_ATTRIBUTESr= �!UNSAFE_ASYNC_GENERATOR_ATTRIBUTES� startswith)r9 r: r3 r3 r4 �is_internal_attributes s8 � � � �� � rM c C s( t D ]\}}t| |�r||v S qdS )a� This function checks if an attribute on a builtin mutable object (list, dict, set or deque) or the corresponding ABCs would modify it if called. >>> modifies_known_mutable({}, "clear") True >>> modifies_known_mutable({}, "keys") False >>> modifies_known_mutable([], "append") True >>> modifies_known_mutable([], "index") False If called with an unsupported object, ``False`` is returned. >>> modifies_known_mutable("foo", "upper") False F)r+ r? )r9 r: �typespecr8 r3 r3 r4 �modifies_known_mutable� s �rO c s e Zd ZU dZdZejejejej ej ej ej d�Z ejeejejejgejf f ed< ejejd�Zejeejejgejf f ed< e� Zeje ed< e� Zeje ed< d ejd ejd d f� fd d� Zdejdedejd e fdd�Z dejd e fdd�Z de dedejdejd ejf dd�Z de ded ejd ejfd d �Z!dejd ej"eejf d ej"eje#f fd d!�Z$dejd"ed ej"eje#f fd#d$�Z%dejd"ed e#fd%d&�Z&dejd ej'ejd'ef fd(d)�Z(d*e d+ejd ejd ejd ejf d,d-�Z)� Z*S ).�SandboxedEnvironmenta� The sandboxed environment. It works like the regular environment but tells the compiler to generate sandboxed code. Additionally subclasses of this environment may override the methods that tell the runtime what attributes or functions are safe to access. If the template tries to access insecure code a :exc:`SecurityError` is raised. However also other exceptions may occur during the rendering so the caller has to ensure that all exceptions are caught. T)�+�-�*�/z//z**�%�default_binop_table)rQ rR �default_unop_table�intercepted_binops�intercepted_unopsr, �kwargsr- Nc s8 t � j|i |�� t| jd< | j�� | _| j�� | _d S )Nr. ) �super�__init__r5 �globalsrV �copy� binop_tablerW � unop_table)�selfr, rZ �� __class__r3 r4 r\ � s z SandboxedEnvironment.__init__r9 r: �valuec C s |� d�p t||� S )aY The sandboxed environment will call this method to check if the attribute of an object is safe to access. Per default all attributes starting with an underscore are considered private as well as the special attributes of internal python objects as returned by the :func:`is_internal_attribute` function. �_)rL rM �ra r9 r: rd r3 r3 r4 �is_safe_attribute� s z&SandboxedEnvironment.is_safe_attributec C s t |dd�p t |dd� S )z�Check if an object is safely callable. By default callables are considered safe unless decorated with :func:`unsafe`. This also recognizes the Django convention of setting ``func.alters_data = True``. r7 F� alters_data)�getattr)ra r9 r3 r3 r4 �is_safe_callable s �z%SandboxedEnvironment.is_safe_callable�context�operator�left�rightc C s | j | ||�S )z�For intercepted binary operator calls (:meth:`intercepted_binops`) this function is executed instead of the builtin operator. 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