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o g�e � @ s� d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlmZ d dlm Z m Z d dl m Z e � dg d��ZG dd � d e�Zd d � Zd d � Zdd� Zddd�Zdd� ZG dd� de�Zdd� Zeej� e�� dS )� N)�utils)� InternalError)�ffi�lib)�CONDITIONAL_NAMES�_OpenSSLErrorWithText)�coder �reason� reason_textc @ s: e Zd Zdd� Zdd� Ze�d�Ze�d�Ze�d�Z dS ) � _OpenSSLErrorc C s || _ || _|| _d S �N)�_code�_lib�_reason)�selfr r r � r �N/usr/lib/python3/dist-packages/cryptography/hazmat/bindings/openssl/binding.py�__init__ s z_OpenSSLError.__init__c C s || j ko || jkS r )r r )r r r r r r �_lib_reason_match s z _OpenSSLError._lib_reason_matchr r r N) �__name__� __module__� __qualname__r r r �read_only_propertyr r r r r r r r s r c C sD g } | � � }|dkr |S | �|�}| �|�}|�t|||�� q)NTr )� ERR_get_error� ERR_GET_LIB�ERR_GET_REASON�appendr )r �errorsr �err_lib� err_reasonr r r �_consume_errors$ s � �r c C sV g }| D ]$}t �dd�}t�|j|t|�� t �|�}|�t|j|j|j |�� q|S )Nzchar[]� ) r �newr �ERR_error_string_nr �len�stringr r r )r �errors_with_text�err�buf�err_text_reasonr r r �_errors_with_text3 s ��r* c C s t t| ��S r )r* r )r r r r �_consume_errors_with_textC � r+ c C s0 |s|d u r t | �}t|�}td�|�|��d S )Nai Unknown OpenSSL error. This error is commonly encountered when another library is not cleaning up the OpenSSL error stack. If you are using cryptography with another library that uses OpenSSL try disabling it before reporting a bug. Otherwise please file an issue at https://github.com/pyca/cryptography/issues with information on how to reproduce this. ({0!r}))r r* r �format)r �okr r& r r r �_openssl_assertG s ��r/ c C sj t �d�}| |_t� }|�� D ]\}}t| |�s |�|� � qt| �D ]}||vr2t||t| |�� q#|S )Nr ) �types� ModuleType� _original_lib�set�items�getattr�update�dir�setattr)r �conditional_names�conditional_lib�excluded_names� condition�names_cb�attrr r r �build_conditional_libraryY s � �r? c @ sx e Zd ZU dZdZejed< eZdZ e � � Z dZ ejed< dZejed< dd� Zed d � �Zed d � �Zed d� �ZdS )�Bindingz OpenSSL API wrapper. Nr F�_legacy_provider�_default_providerc C � | � � d S r ��_ensure_ffi_initialized)r r r r r t r, zBinding.__init__c C s4 | j �� | j jr| j �� }t| j |dv � d S d S )N)� � )r �ERR_clear_error�"CRYPTOGRAPHY_NEEDS_OSRANDOM_ENGINE� Cryptography_add_osrandom_enginer/ )�cls�resultr r r �_register_osrandom_enginew s �z!Binding._register_osrandom_enginec C s� | j �a | jsTttt�| _d| _| j�� | j�� | �� | jjr\| j� | j j d�| _ t | j| j | j j k� | j� | j j d�| _t | j| j| j j k� W d � d S W d � d S W d � d S 1 sgw Y d S )NTs legacys default)� _init_lock� _lib_loadedr? r r �SSL_library_init�OpenSSL_add_all_algorithmsrM �#CRYPTOGRAPHY_OPENSSL_300_OR_GREATER�OSSL_PROVIDER_loadr �NULLrA r/ rB �rK r r r rE � s2 ������"�z Binding._ensure_ffi_initializedc C rC r rD rU r r r �init_static_locks� s zBinding.init_static_locks)r r r �__doc__r �typing�ClassVar�__annotations__r rO � threading�LockrN rA �AnyrB r � classmethodrM rE rV r r r r r@ h s r@ c C s. t �tj�}| �d�|krtd�| |���d S )N�asciia The version of cryptography does not match the loaded shared object. This can happen if you have multiple copies of cryptography installed in your Python path. Please try creating a new virtual environment to resolve this issue. Loaded python version: {}, shared object version: {})r r% r � CRYPTOGRAPHY_PACKAGE_VERSION�encode� ImportErrorr- )�version�so_package_versionr r r �_verify_package_version� s ���re r )� collectionsr[ r0 rX � cryptographyr �cryptography.exceptionsr �%cryptography.hazmat.bindings._opensslr r �1cryptography.hazmat.bindings.openssl._conditionalr � namedtupler �objectr r r* r+ r/ r? r@ re � __version__rV r r r r �<module> s, � >
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