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comparison mercurial/posix.py @ 33635:e10745311406 stable

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ssh: ban any username@host or host that starts with - (SEC) This paranoia probably isn't required, but it can't hurt either.
author Augie Fackler <augie@google.com>
date Fri, 04 Aug 2017 14:00:03 -0400
parents 52361c4f4dac
children 00a75672a9cb
comparison
equal deleted inserted replaced
33634:53224b1ffbc2 33635:e10745311406
21 import unicodedata 21 import unicodedata
22 22
23 from .i18n import _ 23 from .i18n import _
24 from . import ( 24 from . import (
25 encoding, 25 encoding,
26 error,
26 pycompat, 27 pycompat,
27 ) 28 )
28 29
29 posixfile = open 30 posixfile = open
30 normpath = os.path.normpath 31 normpath = os.path.normpath
89 return pf 90 return pf
90 91
91 def sshargs(sshcmd, host, user, port): 92 def sshargs(sshcmd, host, user, port):
92 '''Build argument list for ssh''' 93 '''Build argument list for ssh'''
93 args = user and ("%s@%s" % (user, host)) or host 94 args = user and ("%s@%s" % (user, host)) or host
95 if '-' in args[:2]:
96 raise error.Abort(
97 _('illegal ssh hostname or username starting with -: %s') % args)
94 return port and ("%s -p %s" % (args, port)) or args 98 return port and ("%s -p %s" % (args, port)) or args
95 99
96 def isexec(f): 100 def isexec(f):
97 """check whether a file is executable""" 101 """check whether a file is executable"""
98 return (os.lstat(f).st_mode & 0o100 != 0) 102 return (os.lstat(f).st_mode & 0o100 != 0)