s4-samba-tool: started on gpo subcommands in python

this adds the listall GPO command. Currently the python variants are
available as "samba-tool gpo2 SUBCOMMAND". These will replace the
"samba-tool gpo" commands when complete

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

@@ -170,3 +170,5 @@ from samba.netcmd.rodc import cmd_rodc
 commands["rodc"] = cmd_rodc()
 from samba.netcmd.drs import cmd_drs
 commands["drs"] = cmd_drs()
+from samba.netcmd.gpo import cmd_gpo
+commands["gpo2"] = cmd_gpo()

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

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+#
+# implement samba_tool gpo commands
+#
+# Copyright Andrew Tridgell 2010
+#
+# based on C implementation by Guenther Deschner and Wilco Baan Hofman
+#
+# 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 samba.getopt as options
+import ldb
+
+from samba.auth import system_session
+from samba.netcmd import (
+    Command,
+    CommandError,
+    Option,
+    SuperCommand,
+    )
+from samba.samdb import SamDB
+from samba import drs_utils, nttime2string, dsdb
+from samba.dcerpc import misc
+
+
+def samdb_connect(ctx):
+    '''make a ldap connection to the server'''
+    try:
+        ctx.samdb = SamDB(url=ctx.url,
+                          session_info=system_session(),
+                          credentials=ctx.creds, lp=ctx.lp)
+    except Exception, estr:
+        raise CommandError("LDAP connection to %s failed - %s" % (ctx.url, estr))
+
+
+def attr_default(msg, attrname, default):
+    '''get an attribute from a ldap msg with a default'''
+    if attrname in msg:
+        return msg[attrname][0]
+    return default
+
+
+def flags_string(flags, value):
+    '''return a set of flags as a string'''
+    if value == 0:
+        return 'NONE'
+    ret = ''
+    for (str, val) in flags:
+        if val & value:
+            ret += str + ' '
+            value &= ~val
+    if value != 0:
+        ret += '0x%08x' % value
+    return ret.rstrip()
+
+
+class cmd_listall(Command):
+    """list all GPOs"""
+
+    synopsis = "%prog gpo listall"
+
+    takes_optiongroups = {
+        "sambaopts": options.SambaOptions,
+        "versionopts": options.VersionOptions,
+        "credopts": options.CredentialsOptions,
+    }
+
+    takes_options = [
+        Option("-H", help="LDB URL for database or target server", type=str)
+        ]
+
+    def run(self, H=None, sambaopts=None,
+            credopts=None, versionopts=None, server=None):
+
+        self.url = H
+        self.lp = sambaopts.get_loadparm()
+
+        self.creds = credopts.get_credentials(self.lp)
+        if not self.creds.authentication_requested():
+            self.creds.set_machine_account(self.lp)
+
+        samdb_connect(self)
+
+        policies_dn = self.samdb.get_default_basedn()
+        policies_dn.add_child(ldb.Dn(self.samdb, "CN=Policies,CN=System"))
+
+        gpo_flags = [
+            ("GPO_FLAG_USER_DISABLE", dsdb.GPO_FLAG_USER_DISABLE ),
+            ( "GPO_FLAG_MACHINE_DISABLE", dsdb.GPO_FLAG_MACHINE_DISABLE ) ]
+
+        msg = self.samdb.search(base=policies_dn, scope=ldb.SCOPE_ONELEVEL,
+                                expression="(objectClass=groupPolicyContainer)",
+                                attrs=['nTSecurityDescriptor', 'versionNumber', 'flags', 'name', 'displayName', 'gPCFileSysPath'])
+        for m in msg:
+            print("GPO          : %s" % m['name'][0])
+            print("display name : %s" % m['displayName'][0])
+            print("path         : %s" % m['gPCFileSysPath'][0])
+            print("dn           : %s" % m.dn)
+            print("version      : %s" % attr_default(m, 'version', '0'))
+            print("flags        : %s" % flags_string(gpo_flags, int(attr_default(m, 'flags', 0))))
+            print("")
+
+
+class cmd_gpo(SuperCommand):
+    """GPO commands"""
+
+    subcommands = {}
+    subcommands["listall"] = cmd_listall()