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o ;j� � @ s` d Z ddlZddlZddlZddlmZmZ e�dej�Z e�d�Z e� e �Z G dd� d�ZdS )z� salt.utils.vt_helper ~~~~~~~~~~~~~~~~~~~~ VT Helper This module provides the SSHConnection to expose an SSH connection object allowing users to programmatically execute commands on a remote server using Salt VT. � N)�Terminal�TerminalExceptionz (?:.*)[Pp]assword(?: for .*)?:z.*\(yes\/no\).*c @ s< e Zd ZdZddddddejdfd d �Zd d � Zd d� ZdS )� SSHConnectionz, SSH Connection to a remote server. �salt�passwordZ localhostFz(Cmd)� � c C s t d|� d|� d|� �dddddddd�| _d} t�|�| _|| _| jjr�| j�� \} } | rSt� | �rS|s>t � d � t d ��| |k rO| j� || j� | d 7 } q!t d ��| rpt� | �rp|rit �d |� | j� d� q!| j� d� n | rz| j� | �rzdS | jjs%dS dS )a� Establishes a connection to the remote server. The format for parameters is: username (string): The username to use for this ssh connection. Defaults to root. password (string): The password to use for this ssh connection. Defaults to password. host (string): The host to connect to. Defaults to localhost. key_accept (boolean): Should we accept this host's key and add it to the known_hosts file? Defaults to False. prompt (string): The shell prompt (regex) on the server. Prompt is compiled into a regular expression. Defaults to (Cmd) passwd_retries (int): How many times should I try to send the password? Defaults to 3. linesep (string): The line separator to use when sending commands to the server. Defaults to os.linesep. ssh_args (string): Extra ssh args to use with ssh. Example: '-o PubkeyAuthentication=no' zssh z -l � TZtraceF)�shellZ log_stdoutZlog_stdout_levelZ log_stderrZlog_stderr_levelZ stream_stdoutZ stream_stderrr z Failure while authentication.z0Permission denied, no authentication information� z Password authentication failedzAdding %s to known_hostsZyes�noN)r �conn�re�compile� prompt_re�linesep�has_unread_data�recv�SSH_PASSWORD_PROMPT_RE�search�log�errorr �sendline� KEY_VALID_RE�info) �self�usernamer �hostZ key_accept�promptZpasswd_retriesr Zssh_argsZ sent_passwd�stdout�stderr� r! �H/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/vt_helper.py�__init__ sF "� � �zSSHConnection.__init__c C s� | j �|| j� g }g }| j jr7| j �� \}}|r |�|� |r*t�d� |�|� |r3| j� |�r3n| j jsd� |�d� |�fS )z� Send this command to the server and return a tuple of the output and the stderr. The format for parameters is: cmd (string): The command to send to the sever. z Error while executing command.r ) r r r r r �appendr �debugr r �join)r �cmdZ ret_stdoutZ ret_stderrr r r! r! r" r l s � zSSHConnection.sendlinec C s | j jddd� dS )z- Close the server connection T)� terminate�killN)r �close)r r! r! r" �close_connection� s z SSHConnection.close_connectionN) �__name__� __module__� __qualname__�__doc__�osr r# r r+ r! r! r! r" r s �O r )r/ �loggingr0 r Z salt.utils.vtr r r �Mr r � getLoggerr, r r r! r! r! r" �<module> s
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