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
|
# spn management
#
# Copyright Matthieu Patou mat@samba.org 2010
#
# 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 import provision
from samba.samdb import SamDB
from samba.auth import system_session
from samba.netcmd.common import _get_user_realm_domain
from samba.netcmd import (
Command,
CommandError,
SuperCommand,
Option
)
class cmd_spn_list(Command):
"""List spns of a given user."""
synopsis = "%prog <user> [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_args = ["user"]
def run(self, user, credopts=None, sambaopts=None, versionopts=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
sam = SamDB(paths.samdb, session_info=system_session(),
credentials=creds, lp=lp)
# TODO once I understand how, use the domain info to naildown
# to the correct domain
(cleaneduser, realm, domain) = _get_user_realm_domain(user)
self.outf.write(cleaneduser+"\n")
res = sam.search(
expression="samaccountname=%s" % ldb.binary_encode(cleaneduser),
scope=ldb.SCOPE_SUBTREE, attrs=["servicePrincipalName"])
if len(res) >0:
spns = res[0].get("servicePrincipalName")
found = False
flag = ldb.FLAG_MOD_ADD
if spns is not None:
self.outf.write(
"User %s has the following servicePrincipalName: \n" %
res[0].dn)
for e in spns:
self.outf.write("\t %s\n" % e)
else:
self.outf.write("User %s has no servicePrincipalName" %
res[0].dn)
else:
raise CommandError("User %s not found" % user)
class cmd_spn_add(Command):
"""Create a new spn."""
synopsis = "%prog <name> <user> [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_options = [
Option("--force", help="Force the addition of the spn"
" even it exists already", action="store_true"),
]
takes_args = ["name", "user"]
def run(self, name, user, force=False, credopts=None, sambaopts=None,
versionopts=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
sam = SamDB(paths.samdb, session_info=system_session(),
credentials=creds, lp=lp)
res = sam.search(
expression="servicePrincipalName=%s" % ldb.binary_encode(name),
scope=ldb.SCOPE_SUBTREE)
if len(res) != 0 and not force:
raise CommandError("Service principal %s already"
" affected to another user" % name)
(cleaneduser, realm, domain) = _get_user_realm_domain(user)
res = sam.search(
expression="samaccountname=%s" % ldb.binary_encode(cleaneduser),
scope=ldb.SCOPE_SUBTREE, attrs=["servicePrincipalName"])
if len(res) >0:
res[0].dn
msg = ldb.Message()
spns = res[0].get("servicePrincipalName")
tab = []
found = False
flag = ldb.FLAG_MOD_ADD
if spns is not None:
for e in spns:
if str(e) == name:
found = True
tab.append(str(e))
flag = ldb.FLAG_MOD_REPLACE
tab.append(name)
msg.dn = res[0].dn
msg["servicePrincipalName"] = ldb.MessageElement(tab, flag,
"servicePrincipalName")
if not found:
sam.modify(msg)
else:
raise CommandError("Service principal %s already"
" affected to %s" % (name, user))
else:
raise CommandError("User %s not found" % user)
class cmd_spn_delete(Command):
"""Delete a spn."""
synopsis = "%prog <name> [user] [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_args = ["name", "user?"]
def run(self, name, user=None, credopts=None, sambaopts=None,
versionopts=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
sam = SamDB(paths.samdb, session_info=system_session(),
credentials=creds, lp=lp)
res = sam.search(
expression="servicePrincipalName=%s" % ldb.binary_encode(name),
scope=ldb.SCOPE_SUBTREE,
attrs=["servicePrincipalName", "samAccountName"])
if len(res) >0:
result = None
if user is not None:
(cleaneduser, realm, domain) = _get_user_realm_domain(user)
for elem in res:
if str(elem["samAccountName"]).lower() == cleaneduser:
result = elem
if result is None:
raise CommandError("Unable to find user %s with"
" spn %s" % (user, name))
else:
if len(res) != 1:
listUser = ""
for r in res:
listUser = "%s\n%s" % (listUser, str(r.dn))
raise CommandError("More than one user has the spn %s "
"and no specific user was specified, list of users"
" with this spn:%s" % (name, listUser))
else:
result=res[0]
msg = ldb.Message()
spns = result.get("servicePrincipalName")
tab = []
if spns is not None:
for e in spns:
if str(e) != name:
tab.append(str(e))
flag = ldb.FLAG_MOD_REPLACE
msg.dn = result.dn
msg["servicePrincipalName"] = ldb.MessageElement(tab, flag,
"servicePrincipalName")
sam.modify(msg)
else:
raise CommandError("Service principal %s not affected" % name)
class cmd_spn(SuperCommand):
"""Service Principal Name (SPN) management."""
subcommands = {}
subcommands["add"] = cmd_spn_add()
subcommands["list"] = cmd_spn_list()
subcommands["delete"] = cmd_spn_delete()
|
