source4/scripting/python/samba/netcmd/__init__.py

   1 #!/usr/bin/env python
   2
   3 # Unix SMB/CIFS implementation.
   4 # Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2009
   5 # Copyright (C) Theresa Halloran <theresahalloran@gmail.com> 2011
   6 # Copyright (C) Giampaolo Lauria <lauria2@yahoo.com> 2011
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 import optparse, samba
  23 from samba import getopt as options
  24 from ldb import LdbError
  25 import sys, traceback
  26
  27
  28 class Option(optparse.Option):
  29     pass
  30
  31
  32
  33 class Command(object):
  34     """A %prog command."""
  35
  36     def _get_description(self):
  37         return self.__doc__.splitlines()[0].rstrip("\n")
  38
  39     def _get_name(self):
  40         name = self.__class__.__name__
  41         if name.startswith("cmd_"):
  42             return name[4:]
  43         return name
  44
  45     name = property(_get_name)
  46
  47     def usage(self, *args):
  48         parser, _ = self._create_parser()
  49         parser.print_usage()
  50
  51     description = property(_get_description)
  52
  53     def show_command_error(self, e):
  54         '''display a command error'''
  55         if isinstance(e, CommandError):
  56             (etype, evalue, etraceback) = e.exception_info
  57             inner_exception = e.inner_exception
  58             message = e.message
  59             force_traceback = False
  60         else:
  61             (etype, evalue, etraceback) = sys.exc_info()
  62             inner_exception = e
  63             message = "uncaught exception"
  64             force_traceback = True
  65
  66         if isinstance(inner_exception, LdbError):
  67             (ldb_ecode, ldb_emsg) = inner_exception
  68             print >>sys.stderr, "ERROR(ldb): %s - %s" % (message, ldb_emsg)
  69         elif isinstance(inner_exception, AssertionError):
  70             print >>sys.stderr, "ERROR(assert): %s" % message
  71             force_traceback = True
  72         elif isinstance(inner_exception, RuntimeError):
  73             print >>sys.stderr, "ERROR(runtime): %s - %s" % (message, evalue)
  74         elif type(inner_exception) is Exception:
  75             print >>sys.stderr, "ERROR(exception): %s - %s" % (message, evalue)
  76             force_traceback = True
  77         elif inner_exception is None:
  78             print >>sys.stderr, "ERROR: %s" % (message)
  79         else:
  80             print >>sys.stderr, "ERROR(%s): %s - %s" % (str(etype), message, evalue)
  81             force_traceback = True
  82
  83         if force_traceback or samba.get_debug_level() >= 3:
  84             traceback.print_tb(etraceback)
  85
  86     outf = sys.stdout
  87
  88     # synopsis must be defined in all subclasses in order to provide the command usage
  89     synopsis = ""
  90     takes_args = []
  91     takes_options = []
  92     takes_optiongroups = {
  93         "sambaopts": options.SambaOptions,
  94         "credopts": options.CredentialsOptions,
  95         "versionopts": options.VersionOptions,
  96         }
  97
  98     def _create_parser(self):
  99         parser = optparse.OptionParser(self.synopsis)
 100         parser.add_options(self.takes_options)
 101         optiongroups = {}
 102         for name, optiongroup in self.takes_optiongroups.iteritems():
 103             optiongroups[name] = optiongroup(parser)
 104             parser.add_option_group(optiongroups[name])
 105         return parser, optiongroups
 106
 107     def message(self, text):
 108         print text
 109
 110     def _run(self, *argv):
 111         parser, optiongroups = self._create_parser()
 112         opts, args = parser.parse_args(list(argv))
 113         # Filter out options from option groups
 114         args = args[1:]
 115         kwargs = dict(opts.__dict__)
 116         for option_group in parser.option_groups:
 117             for option in option_group.option_list:
 118                 if option.dest is not None:
 119                     del kwargs[option.dest]
 120         kwargs.update(optiongroups)
 121
 122         # Check for a min a max number of allowed arguments, whenever possible
 123         # The suffix "?" means zero or one occurence
 124         # The suffix "+" means at least one occurence
 125         min_args = 0
 126         max_args = 0
 127         undetermined_max_args = False
 128         for i, arg in enumerate(self.takes_args):
 129             if arg[-1] != "?":
 130                min_args += 1
 131             if arg[-1] == "+":
 132                undetermined_max_args = True
 133             else:
 134                max_args += 1
 135         if (len(args) < min_args) or (undetermined_max_args == False and len(args) > max_args):
 136             parser.print_usage()
 137             return -1
 138
 139         try:
 140             return self.run(*args, **kwargs)
 141         except Exception, e:
 142             self.show_command_error(e)
 143             return -1
 144
 145     def run(self):
 146         """Run the command. This should be overriden by all subclasses."""
 147         raise NotImplementedError(self.run)
 148
 149
 150
 151 class SuperCommand(Command):
 152     """A %prog command with subcommands."""
 153
 154     subcommands = {}
 155
 156     def _run(self, myname, subcommand=None, *args):
 157         if subcommand in self.subcommands:
 158             return self.subcommands[subcommand]._run(subcommand, *args)
 159         print "Available subcommands:"
 160         for cmd in self.subcommands:
 161             print "\t%-20s - %s" % (cmd, self.subcommands[cmd].description)
 162         if subcommand in [None]:
 163             self.show_command_error("You must specify a subcommand")
 164             return -1
 165         if subcommand in ['-h', '--help']:
 166             print "For more help on a specific subcommand, please type: samba-tool %s <subcommand> (-h|--help)" % myname
 167             return 0
 168         self.show_command_error("No such subcommand '%s'" % (subcommand))
 169
 170     def show_command_error(self, msg):
 171         '''display a command error'''
 172
 173         print >>sys.stderr, "ERROR: %s" % (msg)
 174         return -1
 175
 176     def usage(self, myname, subcommand=None, *args):
 177         if subcommand is None or not subcommand in self.subcommands:
 178             print "Usage: %s (%s) [options]" % (myname,
 179                 " | ".join(self.subcommands.keys()))
 180         else:
 181             return self.subcommands[subcommand].usage(*args)
 182
 183
 184
 185 class CommandError(Exception):
 186     '''an exception class for %prog cmd errors'''
 187     def __init__(self, message, inner_exception=None):
 188         self.message = message
 189         self.inner_exception = inner_exception
 190         self.exception_info = sys.exc_info()
 191
 192
 193
 194 commands = {}
 195 from samba.netcmd.newuser import cmd_newuser
 196 commands["newuser"] = cmd_newuser()
 197 from samba.netcmd.netacl import cmd_acl
 198 commands["acl"] = cmd_acl()
 199 from samba.netcmd.fsmo import cmd_fsmo
 200 commands["fsmo"] = cmd_fsmo()
 201 from samba.netcmd.time import cmd_time
 202 commands["time"] = cmd_time()
 203 from samba.netcmd.user import cmd_user
 204 commands["user"] = cmd_user()
 205 from samba.netcmd.vampire import cmd_vampire
 206 commands["vampire"] = cmd_vampire()
 207 from samba.netcmd.spn import cmd_spn
 208 commands["spn"] = cmd_spn()
 209 from samba.netcmd.group import cmd_group
 210 commands["group"] = cmd_group()
 211 from samba.netcmd.rodc import cmd_rodc
 212 commands["rodc"] = cmd_rodc()
 213 from samba.netcmd.drs import cmd_drs
 214 commands["drs"] = cmd_drs()
 215 from samba.netcmd.gpo import cmd_gpo
 216 commands["gpo2"] = cmd_gpo()
 217 from samba.netcmd.ldapcmp import cmd_ldapcmp
 218 commands["ldapcmp"] = cmd_ldapcmp()
 219 from samba.netcmd.testparm import cmd_testparm
 220 commands["testparm"] =  cmd_testparm()
 221 from samba.netcmd.dbcheck import cmd_dbcheck
 222 commands["dbcheck"] =  cmd_dbcheck()
 223 from samba.netcmd.delegation import cmd_delegation
 224 commands["delegation"] = cmd_delegation()
 225 from samba.netcmd.domain import cmd_domain
 226 commands["domain"] = cmd_domain()