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a a�h�1 � @ s� d Z ddlmZ ddlZddlZddlZddlZddlZddlZddl Z ddl m Z m Z ddl m Z zHe �� �, e �de� ddlZejjZW d � n1 s�0 Y W n& ey� dZG dd� de�ZY n0 d d lmZ z ddlZW n e�y dZY n0 d d lmZ d d� Ze� ed�ej �Z d(dd�Z dd� Z dd� Z!d)dd�Z"d*dd�Z#d+d d �Z$d d � Z%d d!� Z&d,d"d#�Z'd-d$d%�Z(ej)d&k�r�e'Z*ne$Z*g d'�Z+dS ).zXBasic ssh tunnel utilities, and convenience functions for tunneling zeromq connections. � )�print_functionN)�getpass�getuser)�Process�ignorec @ s e Zd ZdS )� SSHExceptionN)�__name__� __module__� __qualname__� r r �~/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/zmq/ssh/tunnel.pyr s r � )�forward_tunnel� )�bc C sZ g }g }t | �D ]2}t�� }|�d� |�|�� d � |�|� q|D ] }|�� qH|S )z4Select and return n random ports that are available.)� r r )�range�socket�bind�append� getsockname�close)�nZportsZsockets�i�sockr r r �select_random_ports+ s r zpass(word|phrase):c C s* |du rt jdk}|s t}nt}|| |�S )z�Attempt to make an ssh connection without a password. This is mainly used for requiring password input only once when many tunnels may be connected to the same server. If paramiko is None, the default for the platform is chosen. N�win32)�sys�platform�_try_passwordless_openssh�_try_passwordless_paramiko)�server�keyfile�paramiko�fr r r �try_passwordless_ssh= s r% c C s� t du rtd��d| }|r(|d| 7 }|d7 }tj�� }|�dd� d}t j||d�}z&|j|tgd d �}|d kr|t d ��W n, t j y� Y qXY qX t j y� Y d S 0 dS qXdS )z.Try passwordless login with shell ssh command.Nz!pexpect unavailable, use paramikozssh -f z -i z exit� SSH_ASKPASS�,Are you sure you want to continue connecting��env皙�����?��timeoutr �2The authenticity of the host can't be established.TF) �pexpect� ImportError�os�environ�copy�pop�spawn�expect� _password_patr �TIMEOUT�EOF)r! r" �cmdr) � ssh_newkey�pr r r r r L s& r c C s� t du r0d}tjdkr |d7 }n|d7 }t|��t| �\}} }t �� }|�� |�t �� � z|j | |||dd� W n t j y� Y dS 0 |� � dS dS ) z%Try passwordless login with paramiko.NzParamiko unavailable, r z=Paramiko is required for ssh tunneled connections on Windows.z use OpenSSH.T)�username� key_filename� look_for_keysF) r# r r r/ � _split_server� SSHClient�load_system_host_keys�set_missing_host_key_policy� WarningPolicy�connectZAuthenticationExceptionr )r! r" �msgr< �port�clientr r r r g s$ � r �< c C s& t ||||||d�\}}| �|� |S )a\ Connect a socket to an address via an ssh tunnel. This is a wrapper for socket.connect(addr), when addr is not accessible from the local machine. It simply creates an ssh tunnel using the remaining args, and calls socket.connect('tcp://localhost:lport') where lport is the randomly selected local port of the tunnel. )r" �passwordr# r, )� open_tunnelrD ) r �addrr! r" rI r# r, �new_url�tunnelr r r �tunnel_connection~ s rN c C sr t d�d }| �d�\}} | �d�\}} t| �} |du rBtjdk}|rLt} nt} | || |||||d�} d| | fS ) z�Open a tunneled connection from a 0MQ url. For use inside tunnel_connection. Returns ------- (url, tunnel) : (str, object) The 0MQ url that has been forwarded, and the tunnel object r r z://�:Nr )�remoteipr" rI r, ztcp://127.0.0.1:%i)r �split�intr r �paramiko_tunnel�openssh_tunnel) rK r! r" rI r# r, �lport� transport�ip�rportZtunnelfrM r r r rJ � s rJ � 127.0.0.1c C s� t du rtd��d}|r$|d| 7 }d|v rF|�d�\}}|d| 7 }d||f } t j| dd �\} } | s�t| | �d �d | �d �� �} d || |||f } t j| dd �\} } | s�t�t| � ddd�� | S d|| ||||f } t j � � } | � dd� d}t j| | d�}d}z(|j|tgdd�}|dk�r0td��W nn t j�yN Y �q Y n� t j�y� |j�r�t|j� t|j� t|j� td| ��n |j Y S Y n80 |�r�td� d}|du �r�td | �}|�|� d}�q dS ) a4 Create an ssh tunnel using command-line ssh that connects port lport on this machine to localhost:rport on server. The tunnel will automatically close when not in use, remaining open for a minimum of timeout seconds for an initial connection. This creates a tunnel redirecting `localhost:lport` to `remoteip:rport`, as seen from `server`. keyfile and password may be specified, but ssh config is checked for defaults. Parameters ---------- lport : int local port for connecting to the tunnel from this machine. rport : int port on the remote machine to connect to. server : str The ssh server to connect to. The full ssh server string will be parsed. user@server:port remoteip : str [Default: 127.0.0.1] The remote ip, specifying the destination of the tunnel. Default is localhost, which means that the tunnel would redirect localhost:lport on this machine to localhost:rport on the *server*. keyfile : str; path to public key file This specifies a key to be used in ssh login, default None. Regular default ssh keys will be used without specifying this argument. password : str; Your ssh password to the ssh server. Note that if this is left None, you will be prompted for it if passwordless key based login is unavailable. timeout : int [default: 60] The time (in seconds) after which no activity will result in the tunnel closing. This prevents orphaned tunnels from running forever. Nz(pexpect unavailable, use paramiko_tunnelzssh z-i rO z -p %sz%s -O check %sT)Zwithexitstatuss (pid=� � )z&%s -O forward -L 127.0.0.1:%i:%s:%i %sz -O forwardz -O cancelr z/%s -f -S none -L 127.0.0.1:%i:%s:%i %s sleep %ir& r' r( Fr* r+ r r- ztunnel '%s' failed to startz Password rejected, try again�%s's password: ) r. r/ rQ �runrR �find�atexit�register� _stop_tunnel�replacer0 r1 r2 r3 r4 r5 r6 r r7 r8 � exitstatus�print�before�after� RuntimeError�pidr Zsendline)rU rX r! rP r" rI r, �sshrF r9 �outputrc rh r) r: rM Zfailedr r r r rT � s^ $ � � rT c C s t �| � d S )N)r. r] )r9 r r r ra s ra c C sN d| v r| � dd�\}} nt� }d| v r@| � d�\} }t|�}nd}|| |fS )N�@r rO � )rQ r rR )r! r< rF r r r r? s r? c C s^ t du rtd��|du r.t||�s.td| �}tt| |||ft||d�d�}d|_|�� |S )a6 launch a tunner with paramiko in a subprocess. This should only be used when shell ssh is unavailable (e.g. Windows). This creates a tunnel redirecting `localhost:lport` to `remoteip:rport`, as seen from `server`. If you are familiar with ssh tunnels, this creates the tunnel: ssh server -L localhost:lport:remoteip:rport keyfile and password may be specified, but ssh config is checked for defaults. Parameters ---------- lport : int local port for connecting to the tunnel from this machine. rport : int port on the remote machine to connect to. server : str The ssh server to connect to. The full ssh server string will be parsed. user@server:port remoteip : str [Default: 127.0.0.1] The remote ip, specifying the destination of the tunnel. Default is localhost, which means that the tunnel would redirect localhost:lport on this machine to localhost:rport on the *server*. keyfile : str; path to public key file This specifies a key to be used in ssh login, default None. Regular default ssh keys will be used without specifying this argument. password : str; Your ssh password to the ssh server. Note that if this is left None, you will be prompted for it if passwordless key based login is unavailable. timeout : int [default: 60] The time (in seconds) after which no activity will result in the tunnel closing. This prevents orphaned tunnels from running forever. NzParamiko not availabler\ )r" rI )�target�args�kwargsT) r# r/ r r r �_paramiko_tunnel�dict�daemon�start)rU rX r! rP r" rI r, r; r r r rS s ( �rS c C s t |�\}}}t�� }|�� |�t�� � z|j||||d|d� W n@ ty� } z(td||| f � t � d� W Y d} ~ n d} ~ 0 0 t � t j t j � zt| |||�� � W n^ ty� td� t � d� Y n< t�y } z"td| � t � d � W Y d} ~ n d} ~ 0 0 dS ) z�Function for actually starting a paramiko tunnel, to be passed to multiprocessing.Process(target=this), and not called directly. T)r< r= r> rI z"*** Failed to connect to %s:%d: %rr Nz'SIGINT: Port forwarding stopped cleanlyr z%Port forwarding stopped uncleanly: %s� )r? r# r@ rA rB rC rD � Exceptionrd r �exit�signal�SIGINT�SIG_IGNr Z get_transport�KeyboardInterrupt) rU rX r! rP r" rI r< rF rG �er r r rp F s( � rp r )rN � ssh_tunnelrT rS r% )N)NNNrH )NNNrH )rY NNrH )rY NNrH )NN),�__doc__� __future__r r_ r0 �rerw r r �warningsr r �multiprocessingr �catch_warnings� simplefilter�DeprecationWarningr# Z ssh_exceptionr r/ ru �forwardr r. Zutils.strtypesr r �compile� IGNORECASEr6 r% r r rN rJ rT ra r? rS rp r r| �__all__r r r r �<module> sP * Z 7 "
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