o
    ge                      @   s   d dl Z 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	m
Z
 d dlmZ e dg dZG dd	 d	eZd
d Zdd Zdd ZdddZdd ZG dd deZdd Zeej e  dS )    N)utils)InternalError)ffilib)CONDITIONAL_NAMES_OpenSSLErrorWithText)coder   reasonreason_textc                   @   s:   e Zd Zdd Zdd ZedZedZedZ	dS )	_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 ko	|| jkS 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 }	 |   }|dkr	 |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 dd}t|j|t| t |}|t|j|j|j	| q|S )Nzchar[]   )
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|}td||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||  qt| D ]}||vr2t||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 Zd ZU dZdZejed< eZdZ	e
 ZdZejed< dZejed< dd Zed	d
 Zedd Zedd ZdS )Bindingz
    OpenSSL API wrapper.
    Nr   F_legacy_provider_default_providerc                 C      |    d S r   _ensure_ffi_initialized)r   r   r   r   r   t   r,   zBinding.__init__c                 C   s4   | j   | j jr| j  }t| j |dv  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 | jsTttt| _d| _| j  | j  |   | jjr\| 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   zBinding.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 tj}| d|krtd| |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,   
>
