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Initial commit.
Importing options.py, ssh.py, and LICENSE from the bup project.
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LICENSE
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GNU LIBRARY GENERAL PUBLIC LICENSE
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Version 2, June 1991
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Copyright (C) 1991 Free Software Foundation, Inc.
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||||||
|
restrictions on the recipients' exercise of the rights granted herein.
|
||||||
|
You are not responsible for enforcing compliance by third parties to
|
||||||
|
this License.
|
||||||
|
|
||||||
|
11. If, as a consequence of a court judgment or allegation of patent
|
||||||
|
infringement or for any other reason (not limited to patent issues),
|
||||||
|
conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot
|
||||||
|
distribute so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you
|
||||||
|
may not distribute the Library at all. For example, if a patent
|
||||||
|
license would not permit royalty-free redistribution of the Library by
|
||||||
|
all those who receive copies directly or indirectly through you, then
|
||||||
|
the only way you could satisfy both it and this License would be to
|
||||||
|
refrain entirely from distribution of the Library.
|
||||||
|
|
||||||
|
If any portion of this section is held invalid or unenforceable under any
|
||||||
|
particular circumstance, the balance of the section is intended to apply,
|
||||||
|
and the section as a whole is intended to apply in other circumstances.
|
||||||
|
|
||||||
|
It is not the purpose of this section to induce you to infringe any
|
||||||
|
patents or other property right claims or to contest validity of any
|
||||||
|
such claims; this section has the sole purpose of protecting the
|
||||||
|
integrity of the free software distribution system which is
|
||||||
|
implemented by public license practices. Many people have made
|
||||||
|
generous contributions to the wide range of software distributed
|
||||||
|
through that system in reliance on consistent application of that
|
||||||
|
system; it is up to the author/donor to decide if he or she is willing
|
||||||
|
to distribute software through any other system and a licensee cannot
|
||||||
|
impose that choice.
|
||||||
|
|
||||||
|
This section is intended to make thoroughly clear what is believed to
|
||||||
|
be a consequence of the rest of this License.
|
||||||
|
|
||||||
|
12. If the distribution and/or use of the Library is restricted in
|
||||||
|
certain countries either by patents or by copyrighted interfaces, the
|
||||||
|
original copyright holder who places the Library under this License may add
|
||||||
|
an explicit geographical distribution limitation excluding those countries,
|
||||||
|
so that distribution is permitted only in or among countries not thus
|
||||||
|
excluded. In such case, this License incorporates the limitation as if
|
||||||
|
written in the body of this License.
|
||||||
|
|
||||||
|
13. The Free Software Foundation may publish revised and/or new
|
||||||
|
versions of the Library General Public License from time to time.
|
||||||
|
Such new versions will be similar in spirit to the present version,
|
||||||
|
but may differ in detail to address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the Library
|
||||||
|
specifies a version number of this License which applies to it and
|
||||||
|
"any later version", you have the option of following the terms and
|
||||||
|
conditions either of that version or of any later version published by
|
||||||
|
the Free Software Foundation. If the Library does not specify a
|
||||||
|
license version number, you may choose any version ever published by
|
||||||
|
the Free Software Foundation.
|
||||||
|
|
||||||
|
14. If you wish to incorporate parts of the Library into other free
|
||||||
|
programs whose distribution conditions are incompatible with these,
|
||||||
|
write to the author to ask for permission. For software which is
|
||||||
|
copyrighted by the Free Software Foundation, write to the Free
|
||||||
|
Software Foundation; we sometimes make exceptions for this. Our
|
||||||
|
decision will be guided by the two goals of preserving the free status
|
||||||
|
of all derivatives of our free software and of promoting the sharing
|
||||||
|
and reuse of software generally.
|
||||||
|
|
||||||
|
NO WARRANTY
|
||||||
|
|
||||||
|
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
|
||||||
|
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
|
||||||
|
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
|
||||||
|
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
|
||||||
|
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||||
|
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
|
||||||
|
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
|
||||||
|
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
|
||||||
|
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
|
||||||
|
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
|
||||||
|
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
|
||||||
|
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
|
||||||
|
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
|
||||||
|
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
|
||||||
|
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
|
||||||
|
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||||
|
DAMAGES.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
Appendix: How to Apply These Terms to Your New Libraries
|
||||||
|
|
||||||
|
If you develop a new library, and you want it to be of the greatest
|
||||||
|
possible use to the public, we recommend making it free software that
|
||||||
|
everyone can redistribute and change. You can do so by permitting
|
||||||
|
redistribution under these terms (or, alternatively, under the terms of the
|
||||||
|
ordinary General Public License).
|
||||||
|
|
||||||
|
To apply these terms, attach the following notices to the library. It is
|
||||||
|
safest to attach them to the start of each source file to most effectively
|
||||||
|
convey the exclusion of warranty; and each file should have at least the
|
||||||
|
"copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the library's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This library is free software; you can redistribute it and/or
|
||||||
|
modify it under the terms of the GNU Library General Public
|
||||||
|
License as published by the Free Software Foundation; either
|
||||||
|
version 2 of the License, or (at your option) any later version.
|
||||||
|
|
||||||
|
This library is distributed 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
|
||||||
|
Library General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU Library General Public
|
||||||
|
License along with this library; if not, write to the Free
|
||||||
|
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or your
|
||||||
|
school, if any, to sign a "copyright disclaimer" for the library, if
|
||||||
|
necessary. Here is a sample; alter the names:
|
||||||
|
|
||||||
|
Yoyodyne, Inc., hereby disclaims all copyright interest in the
|
||||||
|
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
||||||
|
|
||||||
|
<signature of Ty Coon>, 1 April 1990
|
||||||
|
Ty Coon, President of Vice
|
||||||
|
|
||||||
|
That's all there is to it!
|
||||||
118
options.py
Normal file
118
options.py
Normal file
@ -0,0 +1,118 @@
|
|||||||
|
import sys, textwrap, getopt, re
|
||||||
|
|
||||||
|
class OptDict:
|
||||||
|
def __init__(self):
|
||||||
|
self._opts = {}
|
||||||
|
|
||||||
|
def __setitem__(self, k, v):
|
||||||
|
self._opts[k] = v
|
||||||
|
|
||||||
|
def __getitem__(self, k):
|
||||||
|
return self._opts[k]
|
||||||
|
|
||||||
|
def __getattr__(self, k):
|
||||||
|
return self[k]
|
||||||
|
|
||||||
|
|
||||||
|
class Options:
|
||||||
|
def __init__(self, exe, optspec, optfunc=getopt.gnu_getopt):
|
||||||
|
self.exe = exe
|
||||||
|
self.optspec = optspec
|
||||||
|
self.optfunc = optfunc
|
||||||
|
self._aliases = {}
|
||||||
|
self._shortopts = 'h?'
|
||||||
|
self._longopts = ['help']
|
||||||
|
self._hasparms = {}
|
||||||
|
self._usagestr = self._gen_usage()
|
||||||
|
|
||||||
|
def _gen_usage(self):
|
||||||
|
out = []
|
||||||
|
lines = self.optspec.strip().split('\n')
|
||||||
|
lines.reverse()
|
||||||
|
first_syn = True
|
||||||
|
while lines:
|
||||||
|
l = lines.pop()
|
||||||
|
if l == '--': break
|
||||||
|
out.append('%s: %s\n' % (first_syn and 'usage' or ' or', l))
|
||||||
|
first_syn = False
|
||||||
|
out.append('\n')
|
||||||
|
while lines:
|
||||||
|
l = lines.pop()
|
||||||
|
if l.startswith(' '):
|
||||||
|
out.append('\n%s\n' % l.lstrip())
|
||||||
|
elif l:
|
||||||
|
(flags, extra) = l.split(' ', 1)
|
||||||
|
extra = extra.strip()
|
||||||
|
if flags.endswith('='):
|
||||||
|
flags = flags[:-1]
|
||||||
|
has_parm = 1
|
||||||
|
else:
|
||||||
|
has_parm = 0
|
||||||
|
flagl = flags.split(',')
|
||||||
|
flagl_nice = []
|
||||||
|
for f in flagl:
|
||||||
|
f_nice = re.sub(r'\W', '_', f)
|
||||||
|
self._aliases[f] = flagl[0]
|
||||||
|
self._aliases[f_nice] = flagl[0]
|
||||||
|
self._hasparms[f] = has_parm
|
||||||
|
if len(f) == 1:
|
||||||
|
self._shortopts += f + (has_parm and ':' or '')
|
||||||
|
flagl_nice.append('-' + f)
|
||||||
|
else:
|
||||||
|
assert(not f.startswith('no-')) # supported implicitly
|
||||||
|
self._longopts.append(f + (has_parm and '=' or ''))
|
||||||
|
self._longopts.append('no-' + f)
|
||||||
|
flagl_nice.append('--' + f)
|
||||||
|
flags_nice = ', '.join(flagl_nice)
|
||||||
|
if has_parm:
|
||||||
|
flags_nice += ' ...'
|
||||||
|
prefix = ' %-20s ' % flags_nice
|
||||||
|
argtext = '\n'.join(textwrap.wrap(extra, width=70,
|
||||||
|
initial_indent=prefix,
|
||||||
|
subsequent_indent=' '*28))
|
||||||
|
out.append(argtext + '\n')
|
||||||
|
else:
|
||||||
|
out.append('\n')
|
||||||
|
return ''.join(out).rstrip() + '\n'
|
||||||
|
|
||||||
|
def usage(self):
|
||||||
|
sys.stderr.write(self._usagestr)
|
||||||
|
sys.exit(97)
|
||||||
|
|
||||||
|
def fatal(self, s):
|
||||||
|
sys.stderr.write('error: %s\n' % s)
|
||||||
|
return self.usage()
|
||||||
|
|
||||||
|
def parse(self, args):
|
||||||
|
try:
|
||||||
|
(flags,extra) = self.optfunc(args, self._shortopts, self._longopts)
|
||||||
|
except getopt.GetoptError, e:
|
||||||
|
self.fatal(e)
|
||||||
|
|
||||||
|
opt = OptDict()
|
||||||
|
for f in self._aliases.values():
|
||||||
|
opt[f] = None
|
||||||
|
for (k,v) in flags:
|
||||||
|
while k.startswith('-'):
|
||||||
|
k = k[1:]
|
||||||
|
if k in ['h', '?', 'help']:
|
||||||
|
self.usage()
|
||||||
|
if k.startswith('no-'):
|
||||||
|
k = self._aliases[k[3:]]
|
||||||
|
opt[k] = None
|
||||||
|
else:
|
||||||
|
k = self._aliases[k]
|
||||||
|
if not self._hasparms[k]:
|
||||||
|
assert(v == '')
|
||||||
|
opt[k] = (opt._opts.get(k) or 0) + 1
|
||||||
|
else:
|
||||||
|
try:
|
||||||
|
vv = int(v)
|
||||||
|
if str(vv) == v:
|
||||||
|
v = vv
|
||||||
|
except ValueError:
|
||||||
|
pass
|
||||||
|
opt[k] = v
|
||||||
|
for (f1,f2) in self._aliases.items():
|
||||||
|
opt[f1] = opt[f2]
|
||||||
|
return (opt,flags,extra)
|
||||||
32
ssh.py
Normal file
32
ssh.py
Normal file
@ -0,0 +1,32 @@
|
|||||||
|
import os, re, subprocess
|
||||||
|
|
||||||
|
def connect(rhost, subcmd):
|
||||||
|
assert(not re.search(r'[^\w-]', subcmd))
|
||||||
|
main_exe = sys.argv[0]
|
||||||
|
nicedir = os.path.split(os.path.abspath(main_exe))[0]
|
||||||
|
nicedir = re.sub(r':', "_", nicedir)
|
||||||
|
if rhost == '-':
|
||||||
|
rhost = None
|
||||||
|
if not rhost:
|
||||||
|
argv = ['sshuttle', subcmd]
|
||||||
|
else:
|
||||||
|
# WARNING: shell quoting security holes are possible here, so we
|
||||||
|
# have to be super careful. We have to use 'sh -c' because
|
||||||
|
# csh-derived shells can't handle PATH= notation. We can't
|
||||||
|
# set PATH in advance, because ssh probably replaces it. We
|
||||||
|
# can't exec *safely* using argv, because *both* ssh and 'sh -c'
|
||||||
|
# allow shellquoting. So we end up having to double-shellquote
|
||||||
|
# stuff here.
|
||||||
|
escapedir = re.sub(r'([^\w/])', r'\\\\\\\1', nicedir)
|
||||||
|
cmd = r"""
|
||||||
|
sh -c PATH=%s:'$PATH sshuttle %s'
|
||||||
|
""" % (escapedir, subcmd)
|
||||||
|
argv = ['ssh', rhost, '--', cmd.strip()]
|
||||||
|
def setup():
|
||||||
|
# runs in the child process
|
||||||
|
if not rhost:
|
||||||
|
os.environ['PATH'] = ':'.join([nicedir,
|
||||||
|
os.environ.get('PATH', '')])
|
||||||
|
os.setsid()
|
||||||
|
return subprocess.Popen(argv, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
|
||||||
|
preexec_fn=setup)
|
||||||
Loading…
Reference in New Issue
Block a user