mirror of
https://github.com/sshuttle/sshuttle.git
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71 lines
2.1 KiB
Python
71 lines
2.1 KiB
Python
import sys, os, re, socket, zlib
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import compat.ssubprocess as ssubprocess
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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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path = [basedir] + sys.path
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for d in path:
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fullname = os.path.join(d, name)
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if os.path.exists(fullname):
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return open(fullname, 'rb').read()
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raise Exception("can't find file %r in any of %r" % (name, path))
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def empackage(z, filename):
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(path,basename) = os.path.split(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' % (basename,len(content), content)
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def connect(rhostport, python):
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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, 'compat/ssubprocess.py') +
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empackage(z, 'ssnet.py') +
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empackage(z, 'hostwatch.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, '--', "'%s' -c '%s'" % (python, 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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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 = ssubprocess.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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