a
    ãIþff  ã                   @   sÔ   d Z ddlZddlZddlZddlZddlZg d¢ZG dd„ deƒZddd„Z	dd	d
„Z
ddd„Zddd„Zdd„ ZzddlZejejf W n> eefyÊ   zddlZW n eyÀ   eZY n0 e
ZY n0 e	ZdS )a‡  Utilities to get a password and/or the current user name.

getpass(prompt[, stream]) - Prompt for a password, with echo turned off.
getuser() - Get the user name from the environment or password database.

GetPassWarning - This UserWarning is issued when getpass() cannot prevent
                 echoing of the password contents while reading.

On Windows, the msvcrt module will be used.

é    N)ÚgetpassÚgetuserÚGetPassWarningc                   @   s   e Zd ZdS )r   N)Ú__name__Ú
__module__Ú__qualname__© r   r   úlib/python3.9/getpass.pyr      ó    r   ú
Password: c           
      C   sÐ  d}t  ¡ ¬}zJt dtjtjB ¡}t |d¡}| |¡ t 	|¡}| |¡ |sX|}W n^ t
y¸   | ¡  ztj ¡ }W n$ ttfy¢   d}t| |ƒ}Y n0 tj}|s´tj}Y n0 |duržzšt |¡}|dd… }|d  tj M  < tj}	ttdƒr|	tjO }	z6t ||	|¡ t| ||d}W t ||	|¡ | ¡  nt ||	|¡ | ¡  0 W n> tjyœ   |dur|‚ ||urŽ| ¡  t| |ƒ}Y n0 | d¡ |W  d  ƒ S 1 sÂ0    Y  dS )a  Prompt for a password, with echo turned off.

    Args:
      prompt: Written on stream to ask for the input.  Default: 'Password: '
      stream: A writable file object to display the prompt.  Defaults to
              the tty.  If no tty is available defaults to sys.stderr.
    Returns:
      The seKr3t input.
    Raises:
      EOFError: If our input tty or stdin was closed.
      GetPassWarning: When we were unable to turn echo off on the input.

    Always restores terminal settings before returning.
    Nz/dev/ttyzw+é   ÚTCSASOFT)ÚinputÚ
)Ú
contextlibÚ	ExitStackÚosÚopenÚO_RDWRÚO_NOCTTYÚioÚFileIOÚenter_contextÚTextIOWrapperÚOSErrorÚcloseÚsysÚstdinÚfilenoÚAttributeErrorÚ
ValueErrorÚfallback_getpassÚstderrÚtermiosÚ	tcgetattrZECHOZ	TCSAFLUSHÚhasattrr   Ú	tcsetattrÚ
_raw_inputÚflushÚerrorÚwrite)
ÚpromptÚstreamZpasswdÚstackÚfdZttyr   ÚoldÚnewZtcsetattr_flagsr   r   r	   Úunix_getpass   sV    






ÿ


r1   c                 C   sŒ   t jt jurt| |ƒS | D ]}t |¡ qd}t ¡ }|dkst|dkrHqt|dkrTt‚|dkrj|dd… }q.|| }q.t d¡ t d¡ |S )z:Prompt for password with echo off, using Windows getwch().Ú úr   úúNéÿÿÿÿ)r   r   Ú	__stdin__r!   ÚmsvcrtZputwchZgetwchÚKeyboardInterrupt)r+   r,   ÚcZpwr   r   r	   Úwin_getpassa   s     



r;   c                 C   s0   t jdtdd |stj}td|d t| |ƒS )Nz%Can not control echo on the terminal.é   )Ú
stacklevelz&Warning: Password input may be echoed.)Úfile)ÚwarningsÚwarnr   r   r"   Úprintr'   )r+   r,   r   r   r	   r!   x   s    ÿr!   r2   c                 C   sš   |s
t j}|st j}t| ƒ} | rnz| | ¡ W n6 tyd   |  |jd¡} |  |j¡} | | ¡ Y n0 | 	¡  | 
¡ }|s~t‚|d dkr–|d d… }|S )NÚreplacer6   r   )r   r"   r   Ústrr*   ÚUnicodeEncodeErrorÚencodeÚencodingÚdecoder(   ÚreadlineÚEOFError)r+   r,   r   Úliner   r   r	   r'      s&    r'   c                  C   s<   dD ]} t j | ¡}|r|  S qddl}| t  ¡ ¡d S )zÂGet the username from the environment or password database.

    First try various environment variables, then the password
    database.  This works on Windows as long as USERNAME is set.

    )ZLOGNAMEZUSERZLNAMEZUSERNAMEr   N)r   ÚenvironÚgetÚpwdÚgetpwuidÚgetuid)ÚnameÚuserrM   r   r   r	   r   š   s    
r   )r   N)r   N)r   N)r2   NN)Ú__doc__r   r   r   r   r?   Ú__all__ÚUserWarningr   r1   r;   r!   r'   r   r#   r$   r&   ÚImportErrorr   r8   r   r   r   r   r	   Ú<module>   s,   
D

	


