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https://github.com/sshuttle/sshuttle.git
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8fe3592be3
Instead, grab our source code, send it over the link, and have python eval it and then start the server.py main() function. Strangely, there's now *less* horrible stuff in ssh.py, because we no longer have to munge around with the PATH environment variable. And this significantly reduces the setup required to get sshuttle going. Based on a suggestion from Wayne Scott.
64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
import sys, os, re, subprocess, socket, zlib
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import helpers
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from helpers import *
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def readfile(name):
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basedir = os.path.dirname(os.path.abspath(sys.argv[0]))
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fullname = os.path.join(basedir, name)
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return open(fullname, 'rb').read()
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def empackage(z, filename):
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content = z.compress(readfile(filename))
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content += z.flush(zlib.Z_SYNC_FLUSH)
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return '%s\n%d\n%s' % (filename,len(content), content)
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def connect(rhostport):
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main_exe = sys.argv[0]
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l = (rhostport or '').split(':', 1)
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rhost = l[0]
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portl = []
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if len(l) > 1:
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portl = ['-p', str(int(l[1]))]
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if rhost == '-':
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rhost = None
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z = zlib.compressobj(1)
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content = readfile('assembler.py')
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content2 = (empackage(z, 'helpers.py') +
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empackage(z, 'ssnet.py') +
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empackage(z, 'server.py') +
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"\n")
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pyscript = r"""
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import sys;
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skip_imports=1;
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verbosity=%d;
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exec compile(sys.stdin.read(%d), "assembler.py", "exec")
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""" % (helpers.verbose or 0, len(content))
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pyscript = re.sub(r'\s+', ' ', pyscript.strip())
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if not rhost:
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argv = ['python', '-c', pyscript]
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else:
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argv = ['ssh'] + portl + [rhost, '--', "python -c '%s'" % pyscript]
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(s1,s2) = socket.socketpair()
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def setup():
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# runs in the child process
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s2.close()
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os.setsid()
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s1a,s1b = os.dup(s1.fileno()), os.dup(s1.fileno())
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s1.close()
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debug2('executing: %r\n' % argv)
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p = subprocess.Popen(argv, stdin=s1a, stdout=s1b, preexec_fn=setup,
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close_fds=True)
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os.close(s1a)
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os.close(s1b)
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s2.sendall(content)
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s2.sendall(content2)
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return p, s2
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