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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
agent.py	13.05 KB	-rw-r--r--
auth_handler.py	34.98 KB	-rw-r--r--
ber.py	4.25 KB	-rw-r--r--
buffered_pipe.py	7.29 KB	-rw-r--r--
channel.py	48.18 KB	-rw-r--r--
client.py	31.37 KB	-rw-r--r--
common.py	8.12 KB	-rw-r--r--
compress.py	1.26 KB	-rw-r--r--
config.py	26.66 KB	-rw-r--r--
dsskey.py	8 KB	-rw-r--r--
ecdsakey.py	11.21 KB	-rw-r--r--
ed25519key.py	7.26 KB	-rw-r--r--
file.py	19.13 KB	-rw-r--r--
hostkeys.py	12.98 KB	-rw-r--r--
__init__.py	3.91 KB	-rw-r--r--
kex_curve25519.py	4.46 KB	-rw-r--r--
kex_ecdh_nist.py	4.91 KB	-rw-r--r--
kex_gex.py	10.11 KB	-rw-r--r--
kex_group14.py	1.79 KB	-rw-r--r--
kex_group16.py	2.23 KB	-rw-r--r--
kex_group1.py	5.66 KB	-rw-r--r--
kex_gss.py	24 KB	-rw-r--r--
message.py	8.81 KB	-rw-r--r--
packet.py	22.13 KB	-rw-r--r--
pipe.py	3.83 KB	-rw-r--r--
pkey.py	28.31 KB	-rw-r--r--
primes.py	5 KB	-rw-r--r--
proxy.py	4.54 KB	-rw-r--r--
py3compat.py	4.11 KB	-rw-r--r--
rsakey.py	7.17 KB	-rw-r--r--
server.py	29.7 KB	-rw-r--r--
sftp_attr.py	8.22 KB	-rw-r--r--
sftp_client.py	33.82 KB	-rw-r--r--
sftp_file.py	20.1 KB	-rw-r--r--
sftp_handle.py	7.26 KB	-rw-r--r--
sftp.py	5.89 KB	-rw-r--r--
sftp_server.py	19.14 KB	-rw-r--r--
sftp_si.py	12.28 KB	-rw-r--r--
ssh_exception.py	7.24 KB	-rw-r--r--
ssh_gss.py	28.21 KB	-rw-r--r--
transport.py	122.91 KB	-rw-r--r--
util.py	8.36 KB	-rw-r--r--
_version.py	80 B	-rw-r--r--
_winapi.py	11.09 KB	-rw-r--r--
win_pageant.py	4.17 KB	-rw-r--r--

Code Editor : proxy.py

# Copyright (C) 2012  Yipit, Inc <coders@yipit.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.

import os
import shlex
import signal
from select import select
import socket
import time

# Try-and-ignore import so platforms w/o subprocess (eg Google App Engine) can
# still import paramiko.
subprocess, subprocess_import_error = None, None
try:
    import subprocess
except ImportError as e:
    subprocess_import_error = e

from paramiko.ssh_exception import ProxyCommandFailure
from paramiko.util import ClosingContextManager

class ProxyCommand(ClosingContextManager):
    """
    Wraps a subprocess running ProxyCommand-driven programs.

This class implements a the socket-like interface needed by the
    `.Transport` and `.Packetizer` classes. Using this class instead of a
    regular socket makes it possible to talk with a Popen'd command that will
    proxy traffic between the client and a server hosted in another machine.

Instances of this class may be used as context managers.
    """

def __init__(self, command_line):
        """
        Create a new CommandProxy instance. The instance created by this
        class can be passed as an argument to the `.Transport` class.

:param str command_line:
            the command that should be executed and used as the proxy.
        """
        if subprocess is None:
            raise subprocess_import_error
        self.cmd = shlex.split(command_line)
        self.process = subprocess.Popen(
            self.cmd,
            stdin=subprocess.PIPE,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            bufsize=0,
        )
        self.timeout = None

def send(self, content):
        """
        Write the content received from the SSH client to the standard
        input of the forked command.

:param str content: string to be sent to the forked command
        """
        try:
            self.process.stdin.write(content)
        except IOError as e:
            # There was a problem with the child process. It probably
            # died and we can't proceed. The best option here is to
            # raise an exception informing the user that the informed
            # ProxyCommand is not working.
            raise ProxyCommandFailure(" ".join(self.cmd), e.strerror)
        return len(content)

def recv(self, size):
        """
        Read from the standard output of the forked program.

:param int size: how many chars should be read

:return: the string of bytes read, which may be shorter than requested
        """
        try:
            buffer = b""
            start = time.time()
            while len(buffer) < size:
                select_timeout = None
                if self.timeout is not None:
                    elapsed = time.time() - start
                    if elapsed >= self.timeout:
                        raise socket.timeout()
                    select_timeout = self.timeout - elapsed

r, w, x = select([self.process.stdout], [], [], select_timeout)
                if r and r[0] == self.process.stdout:
                    buffer += os.read(
                        self.process.stdout.fileno(), size - len(buffer)
                    )
            return buffer
        except socket.timeout:
            if buffer:
                # Don't raise socket.timeout, return partial result instead
                return buffer
            raise  # socket.timeout is a subclass of IOError
        except IOError as e:
            raise ProxyCommandFailure(" ".join(self.cmd), e.strerror)

def close(self):
        os.kill(self.process.pid, signal.SIGTERM)

@property
    def closed(self):
        return self.process.returncode is not None

@property
    def _closed(self):
        # Concession to Python 3 socket-like API
        return self.closed

def settimeout(self, timeout):
        self.timeout = timeout

${this.title}

Code Editor : proxy.py