o
    Þ­j+  ã                   @   sN   d Z ddlmZ ddlmZ ddlmZ ddd„Zdd	„ Zd
d„ Z	dd„ Z
dS )zUtilites for mutual TLS.é    )Úgetenv)Ú
exceptions)Ú_mtls_helperTc                 C   sN   | rt  t j¡durdS t  t j¡durdS tdƒ}|r%t  |¡dur%dS dS )a2  Check if default client SSL credentials exists on the device.

    Args:
       include_context_aware (bool): include_context_aware indicates if context_aware
       path location will be checked or should it be skipped.

    Returns:
        bool: indicating if the default client cert source exists.
    NTÚGOOGLE_API_CERTIFICATE_CONFIGF)r   Ú_check_config_pathÚCONTEXT_AWARE_METADATA_PATHÚ&CERTIFICATE_CONFIGURATION_DEFAULT_PATHr   )Úinclude_context_awareÚcert_config_path© r   úW/var/www/html/CropPilot/venv/lib/python3.10/site-packages/google/auth/transport/mtls.pyÚhas_default_client_cert_source   s$   ÿ
ÿÿýÿr   c                  C   s    t dd�s
t d¡‚dd„ } | S )aˆ  Get a callback which returns the default client SSL credentials.

    Returns:
        Callable[[], [bytes, bytes]]: A callback which returns the default
            client certificate bytes and private key bytes, both in PEM format.

    Raises:
        google.auth.exceptions.DefaultClientCertSourceError: If the default
            client SSL credentials don't exist or are malformed.
    T©r	   z(Default client cert source doesn't existc               
   S   sH   zt  ¡ \} }}W ||fS  tttfy# } zt |¡}||‚d }~ww )N)r   Úget_client_cert_and_keyÚOSErrorÚRuntimeErrorÚ
ValueErrorr   ÚMutualTLSChannelError)Ú_Ú
cert_bytesÚ	key_bytesÚ
caught_excÚnew_excr   r   r   ÚcallbackG   s   ü
€þz,default_client_cert_source.<locals>.callback©r   r   r   )r   r   r   r   Údefault_client_cert_source7   s   
ÿ	r   c                    s&   t dd�s
t d¡‚‡ ‡fdd„}|S )at  Get a callback which returns the default encrpyted client SSL credentials.

    Args:
        cert_path (str): The cert file path. The default client certificate will
            be written to this file when the returned callback is called.
        key_path (str): The key file path. The default encrypted client key will
            be written to this file when the returned callback is called.

    Returns:
        Callable[[], [str, str, bytes]]: A callback which generates the default
            client certificate, encrpyted private key and passphrase. It writes
            the certificate and private key into the cert_path and key_path, and
            returns the cert_path, key_path and passphrase bytes.

    Raises:
        google.auth.exceptions.DefaultClientCertSourceError: If any problem
            occurs when loading or saving the client certificate and key.
    Tr   z2Default client encrypted cert source doesn't existc               
      sº   z@t jdd�\} }}}tˆ dƒ�}| |¡ W d   ƒ n1 s w   Y  tˆdƒ�}| |¡ W d   ƒ n1 s:w   Y  W n tjtfyW } zt |¡}||‚d }~ww ˆ ˆ|fS )NT)Úgenerate_encrypted_keyÚwb)r   Úget_client_ssl_credentialsÚopenÚwriter   ÚClientCertErrorr   r   )r   r   r   Úpassphrase_bytesÚ	cert_fileÚkey_filer   r   ©Ú	cert_pathÚkey_pathr   r   r   k   s(   
ûÿÿ€
€þ
z6default_client_encrypted_cert_source.<locals>.callbackr   )r&   r'   r   r   r%   r   Ú$default_client_encrypted_cert_sourceS   s   
ÿr(   c                   C   s   t  ¡ S )ad  Returns boolean for whether the client certificate should be used for mTLS.

    This is a wrapper around _mtls_helper.check_use_client_cert().
    If GOOGLE_API_USE_CLIENT_CERTIFICATE is set to true or false, a corresponding
    bool value will be returned
    If GOOGLE_API_USE_CLIENT_CERTIFICATE is unset, the value will be inferred by
    reading a file pointed at by GOOGLE_API_CERTIFICATE_CONFIG, and verifying it
    contains a "workload" section. If so, the function will return True,
    otherwise False.

    Returns:
       bool: indicating whether the client certificate should be used for mTLS.
    )r   Úcheck_use_client_certr   r   r   r   Úshould_use_client_cert€   s   r*   N)T)Ú__doc__Úosr   Úgoogle.authr   Úgoogle.auth.transportr   r   r   r(   r*   r   r   r   r   Ú<module>   s   
 -