/usr/share/pyshared/samba/netcmd/__init__.py is in python-samba 4.0.0~alpha18.dfsg1-4ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | #!/usr/bin/env python
# Unix SMB/CIFS implementation.
# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2009-2011
# Copyright (C) Theresa Halloran <theresahalloran@gmail.com> 2011
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import optparse, samba
from samba import getopt as options
from ldb import LdbError
import sys, traceback
import textwrap
class Option(optparse.Option):
pass
# This help formatter does text wrapping and preserves newlines
class PlainHelpFormatter(optparse.IndentedHelpFormatter):
def format_description(self,description=""):
desc_width = self.width - self.current_indent
indent = " "*self.current_indent
paragraphs = description.split('\n')
wrapped_paragraphs = [
textwrap.fill(p,
desc_width,
initial_indent=indent,
subsequent_indent=indent)
for p in paragraphs]
result = "\n".join(wrapped_paragraphs) + "\n"
return result
class Command(object):
"""A samba-tool command."""
def _get_short_description(self):
return self.__doc__.splitlines()[0].rstrip("\n")
short_description = property(_get_short_description)
def _get_full_description(self):
lines = self.__doc__.split("\n")
return lines[0] + "\n" + textwrap.dedent("\n".join(lines[1:]))
full_description = property(_get_full_description)
def _get_name(self):
name = self.__class__.__name__
if name.startswith("cmd_"):
return name[4:]
return name
name = property(_get_name)
# synopsis must be defined in all subclasses in order to provide the
# command usage
synopsis = None
takes_args = []
takes_options = []
takes_optiongroups = {}
def __init__(self, outf=sys.stdout, errf=sys.stderr):
self.outf = outf
self.errf = errf
def usage(self, prog, *args):
parser, _ = self._create_parser(prog)
parser.print_usage()
def show_command_error(self, e):
'''display a command error'''
if isinstance(e, CommandError):
(etype, evalue, etraceback) = e.exception_info
inner_exception = e.inner_exception
message = e.message
force_traceback = False
else:
(etype, evalue, etraceback) = sys.exc_info()
inner_exception = e
message = "uncaught exception"
force_traceback = True
if isinstance(inner_exception, LdbError):
(ldb_ecode, ldb_emsg) = inner_exception
self.errf.write("ERROR(ldb): %s - %s\n" % (message, ldb_emsg))
elif isinstance(inner_exception, AssertionError):
self.errf.write("ERROR(assert): %s\n" % message)
force_traceback = True
elif isinstance(inner_exception, RuntimeError):
self.errf.write("ERROR(runtime): %s - %s\n" % (message, evalue))
elif type(inner_exception) is Exception:
self.errf.write("ERROR(exception): %s - %s\n" % (message, evalue))
force_traceback = True
elif inner_exception is None:
self.errf.write("ERROR: %s\n" % (message))
else:
self.errf.write("ERROR(%s): %s - %s\n" % (str(etype), message, evalue))
force_traceback = True
if force_traceback or samba.get_debug_level() >= 3:
traceback.print_tb(etraceback)
def _create_parser(self, prog):
parser = optparse.OptionParser(
usage=self.synopsis,
description=self.full_description,
formatter=PlainHelpFormatter(),
prog=prog)
parser.add_options(self.takes_options)
optiongroups = {}
for name, optiongroup in self.takes_optiongroups.iteritems():
optiongroups[name] = optiongroup(parser)
parser.add_option_group(optiongroups[name])
return parser, optiongroups
def message(self, text):
self.outf.write(text+"\n")
def _run(self, *argv):
parser, optiongroups = self._create_parser(argv[0])
opts, args = parser.parse_args(list(argv))
# Filter out options from option groups
args = args[1:]
kwargs = dict(opts.__dict__)
for option_group in parser.option_groups:
for option in option_group.option_list:
if option.dest is not None:
del kwargs[option.dest]
kwargs.update(optiongroups)
# Check for a min a max number of allowed arguments, whenever possible
# The suffix "?" means zero or one occurence
# The suffix "+" means at least one occurence
min_args = 0
max_args = 0
undetermined_max_args = False
for i, arg in enumerate(self.takes_args):
if arg[-1] != "?":
min_args += 1
if arg[-1] == "+":
undetermined_max_args = True
else:
max_args += 1
if (len(args) < min_args) or (undetermined_max_args == False and len(args) > max_args):
parser.print_usage()
return -1
try:
return self.run(*args, **kwargs)
except Exception, e:
self.show_command_error(e)
return -1
def run(self):
"""Run the command. This should be overriden by all subclasses."""
raise NotImplementedError(self.run)
def get_logger(self, name="netcmd"):
"""Get a logger object."""
import logging
logger = logging.getLogger(name)
logger.addHandler(logging.StreamHandler(self.outf))
return logger
class SuperCommand(Command):
"""A samba-tool command with subcommands."""
synopsis = "%prog <subcommand>"
subcommands = {}
def _run(self, myname, subcommand=None, *args):
if subcommand in self.subcommands:
return self.subcommands[subcommand]._run(
"%s %s" % (myname, subcommand), *args)
self.usage(myname)
self.outf.write("Available subcommands:\n")
subcmds = self.subcommands.keys()
subcmds.sort()
max_length = max([len(c) for c in subcmds])
for cmd in subcmds:
self.outf.write(" %*s - %s\n" % (
-max_length, cmd, self.subcommands[cmd].short_description))
if subcommand in [None]:
raise CommandError("You must specify a subcommand")
if subcommand in ['help', '-h', '--help']:
self.outf.write("For more help on a specific subcommand, please type: %s (-h|--help)\n" % myname)
return 0
raise CommandError("No such subcommand '%s'" % subcommand)
class CommandError(Exception):
"""An exception class for samba-tool Command errors."""
def __init__(self, message, inner_exception=None):
self.message = message
self.inner_exception = inner_exception
self.exception_info = sys.exc_info()
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