o
    \Oc6W                     @   sP  d dl Z d dlZd dlZd dlZd dlmZ d dlmZ d dlm	Z	 d dlm
Z
 ddlmZ ejrCd dlmZ d d	lmZ d d
lmZ edZejdejdejf dZdejd ddfddZG dd dZG dd deje ZG dd dZG dd dZG dd deZdedefdd Zd!edefd"d#Z G d$d% d%eje Z!dS )&    N)
ContextVarpartial)update_wrapper)
attrgetter   )ClosingIterator)StartResponse)WSGIApplication)WSGIEnvironmentTF.)boundlocal)Local
LocalStackreturnc                 C   s   |    dS )zRelease the data for the current context in a :class:`Local` or
    :class:`LocalStack` without using a :class:`LocalManager`.

    This should not be needed for modern use cases, and may be removed
    in the future.

    .. versionadded:: 0.6.1
    N)__release_local__)r    r   0D:\Flask\env\Lib\site-packages\werkzeug/local.pyrelease_local   s   	r   c                   @   s   e Zd ZdZdZ	ddejeeje	ej
f   ddfddZdejeje	ej
f  fdd	Zdd
de	deje	 ddfddZdddZde	dej
fddZde	dej
ddfddZde	ddfddZdS )r   aq  Create a namespace of context-local data. This wraps a
    :class:`ContextVar` containing a :class:`dict` value.

    This may incur a performance penalty compared to using individual
    context vars, as it has to copy data to avoid mutating the dict
    between nested contexts.

    :param context_var: The :class:`~contextvars.ContextVar` to use as
        storage for this local. If not given, one will be created.
        Context vars not created at the global scope may interfere with
        garbage collection.

    .. versionchanged:: 2.0
        Uses ``ContextVar`` instead of a custom storage implementation.
    )Z	__storageNcontext_varr   c                 C   s.   |d u rt dt|  d}t| d| d S )Nzwerkzeug.Local<	>.storage_Local__storage)r   idobject__setattr__selfr   r   r   r   __init__4   s   zLocal.__init__c                 C   s   t | ji  S N)iterr   getitemsr   r   r   r   __iter__@   s   zLocal.__iter__unbound_messagenamer'   
LocalProxyc                C      t | ||dS )zCreate a :class:`LocalProxy` that access an attribute on this
        local namespace.

        :param name: Proxy this attribute.
        :param unbound_message: The error message that the proxy will
            show if the attribute isn't set.
        r&   r)   r   r(   r'   r   r   r   __call__C   s   
zLocal.__call__c                 C   s   | j i  d S r    )r   setr$   r   r   r   r   O      zLocal.__release_local__c                 C   s$   | j i }||v r|| S t|r    )r   r"   AttributeErrorr   r(   valuesr   r   r   __getattr__R   s   zLocal.__getattr__valuec                 C   s(   | j i  }|||< | j | d S r    )r   r"   copyr.   )r   r(   r4   r2   r   r   r   r   Z   s   zLocal.__setattr__c                 C   s:   | j i }||v r| }||= | j | d S t|r    )r   r"   r5   r.   r0   r1   r   r   r   __delattr___   s   zLocal.__delattr__r    r   N)__name__
__module____qualname____doc__	__slots__tOptionalr   DictstrAnyr   IteratorTupler%   r-   r   r3   r   r6   r   r   r   r   r   !   s,    
 

r   c                   @   s   e Zd ZdZdZddejeeje	   ddfddZ
ddd	Zd
e	deje	 fddZdeje	 fddZedeje	 fddZ	ddddeje deje ddfddZdS )r   a  Create a stack of context-local data. This wraps a
    :class:`ContextVar` containing a :class:`list` value.

    This may incur a performance penalty compared to using individual
    context vars, as it has to copy data to avoid mutating the list
    between nested contexts.

    :param context_var: The :class:`~contextvars.ContextVar` to use as
        storage for this local. If not given, one will be created.
        Context vars not created at the global scope may interfere with
        garbage collection.

    .. versionchanged:: 2.0
        Uses ``ContextVar`` instead of a custom storage implementation.

    .. versionadded:: 0.6.1
    )_storageNr   r   c                 C   s&   |d u rt dt|  d}|| _d S )Nzwerkzeug.LocalStack<r   )r   r   rD   r   r   r   r   r      s   
zLocalStack.__init__c                 C   s   | j g  d S r    )rD   r.   r$   r   r   r   r      r/   zLocalStack.__release_local__objc                 C   s*   | j g  }|| | j | |S )z'Add a new item to the top of the stack.)rD   r"   r5   appendr.   )r   rE   stackr   r   r   push   s   
zLocalStack.pushc                 C   s<   | j g }t|dkrdS |d }| j |dd  |S )zjRemove the top item from the stack and return it. If the
        stack is empty, return ``None``.
        r   N)rD   r"   lenr.   )r   rG   rvr   r   r   pop   s   zLocalStack.popc                 C   s$   | j g }t|dkrdS |d S )z[The topmost item on the stack.  If the stack is empty,
        `None` is returned.
        r   NrI   )rD   r"   rJ   )r   rG   r   r   r   top   s   zLocalStack.topr&   r(   r'   r)   c                C   r*   )a@  Create a :class:`LocalProxy` that accesses the top of this
        local stack.

        :param name: If given, the proxy access this attribute of the
            top item, rather than the item itself.
        :param unbound_message: The error message that the proxy will
            show if the stack is empty.
        r&   r+   r,   r   r   r   r-      s   zLocalStack.__call__r    r7   )r8   r9   r:   r;   r<   r=   r>   r   Listr   r   r   rH   rL   propertyrM   r@   r-   r   r   r   r   r   j   s&    $

r   c                
   @   sx   e Zd ZdZdZ	ddejejee	ej
ejee	f  f  ddfddZddd	ZdddZdddZdefddZdS )LocalManagera>  Manage releasing the data for the current context in one or more
    :class:`Local` and :class:`LocalStack` objects.

    This should not be needed for modern use cases, and may be removed
    in the future.

    :param locals: A local or list of locals to manage.

    .. versionchanged:: 2.0
        ``ident_func`` is deprecated and will be removed in Werkzeug
         2.1.

    .. versionchanged:: 0.7
        The ``ident_func`` parameter was added.

    .. versionchanged:: 0.6.1
        The :func:`release_local` function can be used instead of a
        manager.
    )localsNrQ   r   c                 C   s6   |d u r	g | _ d S t|tr|g| _ d S t|| _ d S r    )rQ   
isinstancer   list)r   rQ   r   r   r   r      s
   

zLocalManager.__init__c                 C   s   | j D ]}t| qdS )zRelease the data in the locals for this context. Call this at
        the end of each request or use :meth:`make_middleware`.
        N)rQ   r   )r   r   r   r   r   cleanup   s   

zLocalManager.cleanupappr
   c                    s&   dddddt jt f fdd}|S )zWrap a WSGI application so that local data is released
        automatically after the response has been sent for a request.
        environr   start_responser	   r   c                    s   t  | |jS r    )r   rT   )rV   rW   rU   r   r   r   application   s   z1LocalManager.make_middleware.<locals>.application)r=   Iterablebytes)r   rU   rY   r   rX   r   make_middleware   s   zLocalManager.make_middlewarefuncc                 C   s   t | ||S )zLike :meth:`make_middleware` but used as a decorator on the
        WSGI application function.

        .. code-block:: python

            @manager.middleware
            def application(environ, start_response):
                ...
        )r   r\   )r   r]   r   r   r   
middleware   s   
zLocalManager.middlewarec                 C   s   dt | j dt| j dS )N<z storages: >)typer8   rJ   rQ   r$   r   r   r   __repr__   s   zLocalManager.__repr__r    r7   )rU   r
   r   r
   )r]   r
   r   r
   )r8   r9   r:   r;   r<   r=   r>   Unionr   r   rZ   r   rT   r\   r^   r@   rb   r   r   r   r   rP      s    



rP   c                   @   s   e Zd ZdZdZ				ddejej dejej dejej de	d	df
d
dZ
ddded	dfddZddddeje d	ejfddZd	efddZdddejdejd	ejfddZdS )_ProxyLookupa  Descriptor that handles proxied attribute lookup for
    :class:`LocalProxy`.

    :param f: The built-in function this attribute is accessed through.
        Instead of looking up the special method, the function call
        is redone on the object.
    :param fallback: Return this function if the proxy is unbound
        instead of raising a :exc:`RuntimeError`.
    :param is_attr: This proxied name is an attribute, not a function.
        Call the fallback immediately to get the value.
    :param class_value: Value to return when accessed from the
        ``LocalProxy`` class directly. Used for ``__doc__`` so building
        docs still works.
    )bind_ffallbackis_attrclass_valuer(   NFfrf   rh   rg   r   c                    sr   t  drdddtjdtjf fdd}n d ur)dddtjdtjf fdd}nd }|| _|| _|| _|| _d S )	N__get__instancer)   rE   r   c                    s     |t|S r    rj   ra   rk   rE   ri   r   r   re     r/   z%_ProxyLookup.__init__.<locals>.bind_fc                    s
   t  |S r    r   rm   rn   r   r   re   %     
)hasattrr=   rA   Callablere   rf   rh   rg   )r   ri   rf   rh   rg   re   r   rn   r   r     s   
	  
z_ProxyLookup.__init__ownerr)   r(   c                 C   s
   || _ d S r    r(   )r   rr   r(   r   r   r   __set_name__1  ro   z_ProxyLookup.__set_name__rk   c                 C   s   |d u r| j d ur| j S | S z| }W n  ty4   | jd u r! | j||}| jr0|  Y S | Y S w | jd ur@| ||S t|| jS r    )	rh   _get_current_objectRuntimeErrorrf   rj   rg   re   getattrr(   )r   rk   rr   rE   rf   r   r   r   rj   4  s"   



z_ProxyLookup.__get__c                 C   s   d| j  S )Nzproxy rs   r$   r   r   r   rb   O  s   z_ProxyLookup.__repr__argskwargsc                 O   s   |  |t||i |S )zSupport calling unbound methods from the class. For example,
        this happens with ``copy.copy``, which does
        ``type(x).__copy__(x)``. ``type(x)`` can't be proxied, so it
        returns the proxy type and descriptor.
        rl   )r   rk   rx   ry   r   r   r   r-   R  s   z_ProxyLookup.__call__)NNNFr    )r8   r9   r:   r;   r<   r=   r>   rq   rA   boolr   r@   rt   ra   rj   rb   r-   r   r   r   r   rd     s,    



 $rd   c                       sF   e Zd ZdZdZ	d	dejej dejej ddf fddZ  Z	S )
	_ProxyIOpzLook up an augmented assignment method on a proxied object. The
    method is wrapped to return the proxy instead of the object.
    r   Nri   rf   r   c                    s6   t   | dddtjdtjf fdd}|| _d S )Nrk   r)   rE   r   c                    s0   dt jdt jddf fdd}||t|S )Nr   otherr   r)   c                    s    | | S r    r   r   r|   )ri   rk   r   r   i_oph  s   
z0_ProxyIOp.__init__.<locals>.bind_f.<locals>.i_op)r=   rA   rj   ra   )rk   rE   r~   rn   )rk   r   re   g  s    z"_ProxyIOp.__init__.<locals>.bind_f)superr   r=   rA   rq   re   )r   ri   rf   re   	__class__rn   r   r   b  s   
z_ProxyIOp.__init__)NN)
r8   r9   r:   r;   r<   r=   r>   rq   r   __classcell__r   r   r   r   r{   [  s    

r{   opc                    s,   dt jdt jdt jf fdd}t t|S )z5Swap the argument order to turn an l-op into an r-op.rE   r|   r   c                    s
    || S r    r   )rE   r|   r   r   r   r_opt  ro   z_l_to_r_op.<locals>.r_op)r=   rA   castr   )r   r   r   r   r   
_l_to_r_opq  s    r   oc                 C   s   | S r    r   )r   r   r   r   	_identityz  s   r   c                
   @   s:  e Zd ZU dZdZejg ef ed< 	 	ddddej	e
e eee ejg ef f deje deje d	dfd
dZeedd ddZedd ddZeedd dZeeZeeZe ZeejZeejZeejZeejZ eej!Z"eej#Z$ee%Z&ee'dd dZ(ee)Z*ee+Z,ee-Z.ee/dd dZ0edd ddZ1edd Z2edd Z3edd Z4ee5Z6eej7Z8eej9Z:eej;Z<eej=Z>ee?Z@eeAZBeeCZDeejEZFeejGZHeejIZJeejKZLeejMZNeejOZPeejQZReejSZTeeUZVeeWZXeejYZZeej[Z\eej]Z^eej_Z`eejaZbeecejGZdeecejIZeeecejKZfeecejMZgeecejOZheecejQZieecejSZjeeceUZkeeceWZleecejYZmeecej[Zneecej]Zoeecej_ZpeecejaZqerejsZterejuZverejwZxerejyZzerej{Z|erej}Z~erejZerejZerejZerejZerejZerejZerejZeejZeejZeeZeejZeeZeeZeeZeejZeeZeejZeejZeejZe Ze Ze Ze Ze Ze Ze ZeejZeejZdS )r)   as	  A proxy to the object bound to a context-local object. All
    operations on the proxy are forwarded to the bound object. If no
    object is bound, a ``RuntimeError`` is raised.

    :param local: The context-local object that provides the proxied
        object.
    :param name: Proxy this attribute from the proxied object.
    :param unbound_message: The error message to show if the
        context-local object is unbound.

    Proxy a :class:`~contextvars.ContextVar` to make it easier to
    access. Pass a name to proxy that attribute.

    .. code-block:: python

        _request_var = ContextVar("request")
        request = LocalProxy(_request_var)
        session = LocalProxy(_request_var, "session")

    Proxy an attribute on a :class:`Local` namespace by calling the
    local with the attribute name:

    .. code-block:: python

        data = Local()
        user = data("user")

    Proxy the top item on a :class:`LocalStack` by calling the local.
    Pass a name to proxy that attribute.

    .. code-block::

        app_stack = LocalStack()
        current_app = app_stack()
        g = app_stack("g")

    Pass a function to proxy the return value from that function. This
    was previously used to access attributes of local objects before
    that was supported directly.

    .. code-block:: python

        session = LocalProxy(lambda: request.session)

    ``__repr__`` and ``__class__`` are proxied, so ``repr(x)`` and
    ``isinstance(x, cls)`` will look like the proxied object. Use
    ``issubclass(type(x), LocalProxy)`` to check if an object is a
    proxy.

    .. code-block:: python

        repr(user)  # <User admin>
        isinstance(user, User)  # True
        issubclass(type(user), LocalProxy)  # True

    .. versionchanged:: 2.2.2
        ``__wrapped__`` is set when wrapping an object, not only when
        wrapping a function, to prevent doctest from failing.

    .. versionchanged:: 2.2
        Can proxy a ``ContextVar`` or ``LocalStack`` directly.

    .. versionchanged:: 2.2
        The ``name`` parameter can be used with any proxied object, not
        only ``Local``.

    .. versionchanged:: 2.2
        Added the ``unbound_message`` parameter.

    .. versionchanged:: 2.0
        Updated proxied attributes and methods to reflect the current
        data model.

    .. versionchanged:: 0.6.1
        The class can be instantiated with a callable.
    )Z	__wrappedru   ru   Nr&   r   r(   r'   r   c                   s   |d u rt  nt| d u rdttr*|d u rtddtf fdd}n;ttr;dtf fdd}n*ttrLdtf fdd}ntr[dtf fdd}n
td	t	 d
t
| d t
| d| d S )Nzobject is not boundz2'name' is required when proxying a 'Local' object.r   c                      s$   z W S  t y   td w r    )r0   rv   r   get_namer   r'   r   r   ru     s
   

z0LocalProxy.__init__.<locals>._get_current_objectc                     s   j } | d u rt | S r    )rM   rv   rE   r   r   r   ru     s   c                     s,   z	  } W  | S  ty   td w r    )r"   LookupErrorrv   r   r   r   r   ru     s   

c                      s
     S r    r   r   )r   r   r   r   ru     ro   zDon't know how to proxy 'z'._LocalProxy__wrappedru   )r   r   rR   r   	TypeErrorr   r   r   callablera   r   r   )r   r   r(   r'   ru   r   r   r   r     s$   


zLocalProxy.__init__c                 C   s
   t | jS r    )ra   r;   r$   r   r   r   <lambda>     
 zLocalProxy.<lambda>T)rh   rf   rg   c                 C   s   | j S r    )r   r$   r   r   r   r     s    )rf   rg   c                 C   s   dt | j dS )Nr_   z	 unbound>)ra   r8   r$   r   r   r   r     s    )rf   c                 C   s   dS )NFr   r$   r   r   r   r   $      c                 C   s   g S r    r   r$   r   r   r   r   )  r   c                 C   s   t | S r    )ra   r$   r   r   r   r   5  s    c                 C   
   t || S r    )rR   r}   r   r   r   r   7  r   c                 C   r   r    )
issubclassr}   r   r   r   r   8  r   c                 O   s   | |i |S r    r   )r   rx   ry   r   r   r   r   :  s    r    )r8   r9   r:   r;   r<   r=   rq   r   __annotations__rc   r   r   r   r>   r@   r   rd   __wrapped__reprrb   __str__r[   	__bytes__
__format__operatorlt__lt__le__le__eq__eq__ne__ne__gt__gt__ge__ge__hash__hash__rz   __bool__rw   r3   setattrr   delattrr6   dir__dir__r   __instancecheck____subclasscheck__r-   rJ   __len__length_hint__length_hint__getitem__getitem__setitem__setitem__delitem__delitem__r!   r%   next__next__reversed__reversed__contains__contains__add__add__sub__sub__mul__mul__matmul
__matmul__truediv__truediv__floordiv__floordiv__mod__mod__divmod
__divmod__pow__pow__lshift
__lshift__rshift
__rshift__and___and__xor__xor__or___or__r   __radd____rsub____rmul____rmatmul____rtruediv____rfloordiv____rmod____rdivmod____rpow____rlshift____rrshift____rand____rxor____ror__r{   iadd__iadd__isub__isub__imul__imul__imatmul__imatmul__itruediv__itruediv__	ifloordiv__ifloordiv__imod__imod__ipow__ipow__ilshift__ilshift__irshift__irshift__iand__iand__ixor__ixor__ior__ior__neg__neg__pos__pos__abs__abs__invert
__invert__complex__complex__int__int__float	__float__index	__index__round	__round__mathtrunc	__trunc__floor	__floor__ceil__ceil__	__enter____exit__	__await__	__aiter__	__anext__
__aenter__	__aexit__r5   __copy__deepcopy__deepcopy__r   r   r   r   r)   ~  s   
 M"
8

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
r)   )"r5   r  r   typingr=   contextvarsr   	functoolsr   r   r   Zwsgir   TYPE_CHECKINGZ_typeshed.wsgir	   r
   r   TypeVarr   rq   rA   r   rc   r   r   Genericr   rP   rd   r{   r   r   r)   r   r   r   r   <module>   s0    
IPGZ	