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o �hy? � @ s� d Z ddlZddlZddlZddlmZ ddlZddlZddlZddl Z ddlm Z m Z m Z m Z mZmZmZmZmZmZ ejrSddlZddlmZ ddlmZ ddlZeZe Z e Z zddl m Z W n e!yx deg e"f fd d �Z#e#� Z Y nw ej$Z$G d d � d e e e f �Z%G d d� de&�Z'de de fdd�Z( d7de de e e f de e e e e f ddfdd�Z)dee e* e e+ e d f dej,fdd�Z-de+de e. fd d �Z/e0d �Z1d ee de fd d!�Z2e�3d"ej4�Z5d#e de fd$d%�Z6G d&d'� d'e&�Z7G d(d)� d)e&�Z8d*d+� Z9d,ed-edefd.d/�Z:ej;�<d0��s"ej;�<d1�d2k�r%e:Z=n zdd3l>m?Z= W n e!�yC ej;�<d1�d4k�r?� e:Z=Y nw d5d6� Z@dS )8a� Miscellaneous utility functions and classes. This module is used internally by Tornado. It is not necessarily expected that the functions and classes defined here will be useful to other applications, but they are documented here in case they are. The one public-facing part of this module is the `Configurable` class and its `~Configurable.configure` method, which becomes a part of the interface of its subclasses, including `.AsyncHTTPClient`, `.IOLoop`, and `.Resolver`. � N)�getfullargspec) �Any�Optional�Dict�Mapping�List�Tuple�Match�Callable�Type�Sequence)� TracebackType)�Union�� is_finalizing�returnc s, g � t �� fdd�� dtf� fdd� } | S )Nc s � � d �S �N)�append� ��Lr �B/usr/local/CyberPanel/lib/python3.10/site-packages/tornado/util.py�<lambda>8 s z-_get_emulated_is_finalizing.<locals>.<lambda>r c s � g kS r r r r r r r : s z2_get_emulated_is_finalizing.<locals>.is_finalizing)�atexit�register�boolr r r r �_get_emulated_is_finalizing6 s r c @ s8 e Zd ZdZdedefdd�Zdededdfdd �ZdS ) � ObjectDictzFMakes a dictionary behave like an object, with attribute-style access.�namer c C s" z| | W S t y t|��w r )�KeyError�AttributeError)�selfr r r r � __getattr__K s �zObjectDict.__getattr__�valueNc C s || |< d S r r )r! r r# r r r � __setattr__Q s zObjectDict.__setattr__)�__name__� __module__� __qualname__�__doc__�strr r" r$ r r r r r H s r c @ sR e Zd ZdZddd�Zddededefd d �Zedefd d ��Z defd d�Z dS )�GzipDecompressorz�Streaming gzip decompressor. The interface is like that of `zlib.decompressobj` (without some of the optional arguments, but it understands gzip headers and checksums. r Nc C s t �dt j �| _d S )N� )�zlib� decompressobj� MAX_WBITS�r! r r r �__init__\ s zGzipDecompressor.__init__r r# � max_lengthc C s | j �||�S )a� Decompress a chunk, returning newly-available data. Some data may be buffered for later processing; `flush` must be called when there is no more input data to ensure that all data was processed. If ``max_length`` is given, some input data may be left over in ``unconsumed_tail``; you must retrieve this value and pass it back to a future call to `decompress` if it is not empty. )r- � decompress)r! r# r1 r r r r2 b s zGzipDecompressor.decompressc C s | j jS )z(Returns the unconsumed portion left over)r- �unconsumed_tailr/ r r r r3 o � z GzipDecompressor.unconsumed_tailc C s | j �� S )z�Return any remaining buffered data not yet returned by decompress. Also checks for errors such as truncated input. No other methods may be called on this object after `flush`. )r- �flushr/ r r r r5 t s zGzipDecompressor.flush�r N)r ) r% r& r' r( r0 �bytes�intr2 �propertyr3 r5 r r r r r* U s r* r c C sp | � d�dkr t| �S | �d�}td�|dd� �|d gd�}zt||d �W S ty7 td|d ��w )a Imports an object by name. ``import_object('x')`` is equivalent to ``import x``. ``import_object('x.y.z')`` is equivalent to ``from x.y import z``. >>> import tornado.escape >>> import_object('tornado.escape') is tornado.escape True >>> import_object('tornado.escape.utf8') is tornado.escape.utf8 True >>> import_object('tornado') is tornado True >>> import_object('tornado.missing_module') Traceback (most recent call last): ... ImportError: No module named missing_module �.r N���)�fromlistzNo module named %s)�count� __import__�split�join�getattrr � ImportError)r �parts�objr r r � import_object} s �rE �code�glob�locc C s* t | t�r t| dddd�} t| ||� d S )Nz<string>�execT)� dont_inherit)� isinstancer) �compilerI )rF rG rH r r r �exec_in� s rM �exc_infor c C s. z| d d ur| d � | d ��td��d} w )N� � z'raise_exc_info called with no exception)NNN)�with_traceback� TypeError)rN r r r �raise_exc_info� s rS �ec C s$ t | d�r| jS | jr| jd S dS )aL Provides the errno from an Exception object. There are cases that the errno attribute was not set so we pull the errno out of the args but if someone instantiates an Exception without any args you will get a tuple error. So this function abstracts all that behavior to give you a safe way to get the errno. �errnor N)�hasattrrU �args)rT r r r �errno_from_exception� s rX �>abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789�matchc C s* | � d�}|d tv rtd|d ��|S )NrO r zcannot unescape '\\%s')�group� _alphanum� ValueError)rZ r[ r r r �_re_unescape_replacement� s r^ z\\(.)�sc C s t �t| �S )z�Unescape a string escaped by `re.escape`. May raise ``ValueError`` for regular expressions which could not have been produced by `re.escape` (for example, strings containing ``\d`` cannot be unescaped). .. versionadded:: 4.4 )�_re_unescape_pattern�subr^ )r_ r r r � re_unescape� s rb c s� e Zd ZdZdZdZdededef� fdd� Zedd � �Z ed d � �Z dd d �Z e Z edd� �Z edd� �Zedd� �Zedd� �Z� ZS )� Configurablea* Base class for configurable interfaces. A configurable interface is an (abstract) class whose constructor acts as a factory function for one of its implementation subclasses. The implementation subclass as well as optional keyword arguments to its initializer can be set globally at runtime with `configure`. By using the constructor as the factory method, the interface looks like a normal class, `isinstance` works as usual, etc. This pattern is most useful when the choice of implementation is likely to be a global decision (e.g. when `~select.epoll` is available, always use it instead of `~select.select`), or when a previously-monolithic class has been split into specialized subclasses. Configurable subclasses must define the class methods `configurable_base` and `configurable_default`, and use the instance method `initialize` instead of ``__init__``. .. versionchanged:: 5.0 It is now possible for configuration to be specified at multiple levels of a class hierarchy. NrW �kwargsr c s| | � � }i }| |u r| �� }|jr|�|j� n| }|�|� |� � |ur,||i |��S tt| ��|�}|j|i |�� |S r )�configurable_base�configured_class�_Configurable__impl_kwargs�update�superrc �__new__� initialize)�clsrW rd �base� init_kwargs�impl�instance�� __class__r r rj s � zConfigurable.__new__c C � t � �)z�Returns the base class of a configurable hierarchy. This will normally return the class in which it is defined. (which is *not* necessarily the same as the ``cls`` classmethod parameter). ��NotImplementedError�rl r r r re s z Configurable.configurable_basec C rs )zBReturns the implementation class to be used if none is configured.rt rv r r r �configurable_default# s z!Configurable.configurable_defaultc C s d S r r r/ r r r � _initialize) s zConfigurable._initializec K sT | � � }t|t�rt�tt t|��}|dur"t|| �s"t d| ��||_ ||_ dS )z�Sets the class to use when the base class is instantiated. Keyword arguments will be saved and added to the arguments passed to the constructor. This can be used to set global defaults for some parameters. NzInvalid subclass of %s) re rK r) �typing�castr rc rE � issubclassr] �_Configurable__impl_classrg )rl ro rd rm r r r � configure5 s zConfigurable.configurec C s: | � � }|j�d�du r| �� |_|jdur|jS td��)z'Returns the currently configured class.r| Nzconfigured class not found)re �__dict__�getrw r| r] �rl rm r r r rf F s z Configurable.configured_classc C s | � � }|j|jfS r �re r| rg r� r r r �_save_configurationV s z Configurable._save_configurationc C s | � � }|d |_|d |_d S )Nr rO r� )rl �savedrm r r r �_restore_configuration\ s z#Configurable._restore_configurationr6 )r% r& r' r( r| rg r rj � classmethodre rw rx rk r} rf r� r� � __classcell__r r rq r rc � s( " rc c @ s� e Zd ZdZdededdfdd�Zdedee fdd �Z dd e e d e ee f d e de fd d�Z de d e e d e ee f de e e e e ee f f fdd�ZdS )� ArgReplacerz�Replaces one value in an ``args, kwargs`` pair. Inspects the function signature to find an argument by name whether it is passed by position or keyword. For use in decorators and similar wrappers. �funcr r Nc C s: || _ z | �|��|�| _W d S ty d | _Y d S w r )r � _getargnames�index�arg_posr] )r! r� r r r r r0 l s �zArgReplacer.__init__c C sB zt |�jW S ty t|d�r |j}|jd |j� Y S � w )N� func_code)r rW rR rV r� � co_varnames� co_argcount)r! r� rF r r r r� t s �zArgReplacer._getargnamesrW rd �defaultc C s0 | j durt|�| j kr|| j S |�| j|�S )z�Returns the old value of the named argument without replacing it. Returns ``default`` if the argument is not present. N)r� �lenr r )r! rW rd r� r r r � get_old_value� s zArgReplacer.get_old_value� new_valuec C sV | j durt|�| j kr|| j }t|�}||| j < n |�| j�}||| j< |||fS )a� Replace the named argument in ``args, kwargs`` with ``new_value``. Returns ``(old_value, args, kwargs)``. The returned ``args`` and ``kwargs`` objects may not be the same as the input objects, or the input objects may be mutated. If the named argument was not found, ``new_value`` will be added to ``kwargs`` and None will be returned as ``old_value``. N)r� r� �listr r )r! r� rW rd � old_valuer r r �replace� s zArgReplacer.replacer )r% r& r' r( r r) r0 r r� r r r r� r r� r r r r r� d s. �� �� � �� ��r� c C s | � � S )z@Equivalent to ``td.total_seconds()`` (introduced in Python 2.7).)� total_seconds)�tdr r r �timedelta_to_seconds� r4 r� �mask�datac C sJ t � d| �}t � d|�}tt|��D ]}|| ||d A ||< q|�� S )aQ Websocket masking function. `mask` is a `bytes` object of length 4; `data` is a `bytes` object of any length. Returns a `bytes` object of the same length as `data` with the mask applied as specified in section 5.3 of RFC 6455. This pure-python implementation may be replaced by an optimized version when available. �B� )�array�ranger� �tobytes)r� r� �mask_arr� unmasked_arr�ir r r �_websocket_mask_python� s r� �TORNADO_NO_EXTENSION�TORNADO_EXTENSION�0)�websocket_mask�1c C s dd l } | �� S )Nr )�doctest� DocTestSuite)r� r r r �doctests� s r� r )Ar( r� �asyncior �inspectr �os�rery r, r r r r r r r r r r � TYPE_CHECKING�datetime�typesr r �unittestr7 � bytes_typer) � unicode_type�basestring_type�sysr rB r r � TimeoutErrorr �objectr* rE rM �type� BaseException�NoReturnrS r8 rX � frozensetr\ r^ rL �DOTALLr` rb rc r� r� r� �environr �_websocket_mask�tornado.speedupsr� r� r r r r �<module> s~ 0 � ( �� �� � � � C �
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