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� Ϫ�f�. � �� � d Z ddlZddlZddlZddlZddlZddlmZ ddlm Z ddl mZmZ ddl mZ ddlmZmZmZ ddlmZmZmZ dd lmZ dd lmZ dZeZeZd� Z d � Z!d� Z" G d� dejF � Z#y)aN Various classes and functions for implementing user-interaction in the command-line conch client. You probably shouldn't use anything in this module directly, since it assumes you are sitting at an interactive terminal. For example, to programmatically interact with a known_hosts database, use L{twisted.conch.client.knownhosts}. � N)�decodebytes)�agent)� ConsoleUI�KnownHostsFile)� ConchError)�common�keys�userauth)�defer�protocol�reactor)�nativeString)�FilePathz~/.ssh/known_hostsc �f � | j j d }t j j |� }t j t | j j d xs# t j j t � � � }t d� � }|j ||||� S )a% Verify a host's key. This function is a gross vestige of some bad factoring in the client internals. The actual implementation, and a better signature of this logic is in L{KnownHostsFile.verifyHostKey}. This function is not deprecated yet because the callers have not yet been rehabilitated, but they should eventually be changed to call that method instead. However, this function does perform two functions not implemented by L{KnownHostsFile.verifyHostKey}. It determines the path to the user's known_hosts file based on the options (which should really be the options object's job), and it provides an opener to L{ConsoleUI} which opens '/dev/tty' so that the user will be prompted on the tty of the process even if the input and output of the process has been redirected. This latter part is, somewhat obviously, not portable, but I don't know of a portable equivalent that could be used. @param host: Due to a bug in L{SSHClientTransport.verifyHostKey}, this is always the dotted-quad IP address of the host being connected to. @type host: L{str} @param transport: the client transport which is attempting to connect to the given host. @type transport: L{SSHClientTransport} @param fingerprint: the fingerprint of the given public key, in xx:xx:xx:... format. This is ignored in favor of getting the fingerprint from the key itself. @type fingerprint: L{str} @param pubKey: The public key of the server being connected to. @type pubKey: L{str} @return: a L{Deferred} which fires with C{1} if the key was successfully verified, or fails if the key could not be successfully verified. Failure types may include L{HostKeyChanged}, L{UserRejectedKey}, L{IOError} or L{KeyboardInterrupt}. �host�known-hostsc � � t ddd�� S )N�/dev/ttyzr+br )� buffering)�_open� � �>/usr/lib/python3/dist-packages/twisted/conch/client/default.py�<lambda>zverifyHostKey.<locals>.<lambda>V s � �5��U�a�@� r )�factory�optionsr �Key� fromStringr �fromPathr �os�path� expanduser�_KNOWN_HOSTSr � verifyHostKey)� transportr �pubKey�fingerprint� actualHost� actualKey�kh�uis r r$ r$ '