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# Copyright (c) 2019 Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import (absolute_import, division, print_function) __metaclass__ = type DOCUMENTATION = ''' name: cmd version_added: '2.8' short_description: Windows Command Prompt description: - Used with the 'ssh' connection plugin and no C(DefaultShell) has been set on the Windows host. extends_documentation_fragment: - shell_windows ''' import re from ansible.plugins.shell.powershell import ShellModule as PSShellModule # these are the metachars that have a special meaning in cmd that we want to escape when quoting _find_unsafe = re.compile(r'[\s\(\)\%\!^\"\<\>\&\|]').search class ShellModule(PSShellModule): # Common shell filenames that this plugin handles COMPATIBLE_SHELLS = frozenset() # type: frozenset[str] # Family of shells this has. Must match the filename without extension SHELL_FAMILY = 'cmd' _SHELL_REDIRECT_ALLNULL = '>nul 2>&1' _SHELL_AND = '&&' # Used by various parts of Ansible to do Windows specific changes _IS_WINDOWS = True def quote(self, s): # cmd does not support single quotes that the shlex_quote uses. We need to override the quoting behaviour to # better match cmd.exe. # https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/ # Return an empty argument if not s: return '""' if _find_unsafe(s) is None: return s # Escape the metachars as we are quoting the string to stop cmd from interpreting that metachar. For example # 'file &whoami.exe' would result in 'file $(whoami.exe)' instead of the literal string # https://stackoverflow.com/questions/3411771/multiple-character-replace-with-python for c in '^()%!"<>&|': # '^' must be the first char that we scan and replace if c in s: # I can't find any docs that explicitly say this but to escape ", it needs to be prefixed with \^. s = s.replace(c, ("\\^" if c == '"' else "^") + c) return '^"' + s + '^"'