3 # Unix SMB/CIFS implementation.
4 # Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
6 # Based on the original in EJS:
7 # Copyright (C) Andrew Tridgell <tridge@samba.org> 2005
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 3 of the License, or
12 # (at your option) any later version.
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 """Convenience functions for using the SAM."""
28 from samba.idmap import IDmapDB
33 __docformat__ = "restructuredText"
35 class SamDB(samba.Ldb):
36 """The SAM database."""
38 def __init__(self, url=None, session_info=None, credentials=None,
39 modules_dir=None, lp=None, options=None):
40 """Open the Sam Database.
42 :param url: URL of the database.
45 super(SamDB, self).__init__(session_info=session_info, credentials=credentials,
46 modules_dir=modules_dir, lp=lp, options=options)
47 glue.dsdb_set_global_schema(self)
51 self.connect(lp.get("sam database"))
53 def connect(self, url):
54 super(SamDB, self).connect(self.lp.private_path(url))
56 def add_foreign(self, domaindn, sid, desc):
57 """Add a foreign security principle."""
59 dn: CN=%s,CN=ForeignSecurityPrincipals,%s
61 objectClass: foreignSecurityPrincipal
63 """ % (sid, domaindn, desc)
64 # deliberately ignore errors from this, as the records may
66 for msg in self.parse_ldif(add):
69 def add_stock_foreign_sids(self):
70 domaindn = self.domain_dn()
71 self.add_foreign(domaindn, "S-1-5-7", "Anonymous")
72 self.add_foreign(domaindn, "S-1-1-0", "World")
73 self.add_foreign(domaindn, "S-1-5-2", "Network")
74 self.add_foreign(domaindn, "S-1-5-18", "System")
75 self.add_foreign(domaindn, "S-1-5-11", "Authenticated Users")
77 def enable_account(self, user_dn):
80 :param user_dn: Dn of the account to enable.
82 res = self.search(user_dn, ldb.SCOPE_BASE, None, ["userAccountControl"])
84 userAccountControl = res[0]["userAccountControl"][0]
85 userAccountControl = int(userAccountControl)
86 if (userAccountControl & 0x2):
87 userAccountControl = userAccountControl & ~0x2 # remove disabled bit
88 if (userAccountControl & 0x20):
89 userAccountControl = userAccountControl & ~0x20 # remove 'no password required' bit
94 replace: userAccountControl
95 userAccountControl: %u
96 """ % (user_dn, userAccountControl)
100 def force_password_change_at_next_login(self, user_dn):
101 """Force a password change at next login
103 :param user_dn: Dn of the account to force password change on
111 self.modify_ldif(mod)
114 # find the DNs for the domain and the domain users group
115 res = self.search("", scope=ldb.SCOPE_BASE,
116 expression="(defaultNamingContext=*)",
117 attrs=["defaultNamingContext"])
118 assert(len(res) == 1 and res[0]["defaultNamingContext"] is not None)
119 return res[0]["defaultNamingContext"][0]
121 def newuser(self, username, unixname, password, force_password_change_at_next_login=False):
122 """add a new user record.
124 :param username: Name of the new user.
125 :param unixname: Name of the unix user to map to.
126 :param password: Password for the new user
129 self.transaction_start()
131 domain_dn = self.domain_dn()
132 assert(domain_dn is not None)
133 user_dn = "CN=%s,CN=Users,%s" % (username, domain_dn)
136 # the new user record. note the reliance on the samdb module to
137 # fill in a sid, guid etc
140 self.add({"dn": user_dn,
141 "sAMAccountName": username,
142 "userPassword": password,
143 "objectClass": "user"})
145 res = self.search(user_dn, scope=ldb.SCOPE_BASE,
146 expression="objectclass=*",
149 user_sid = self.schema_format_value("objectSid", res[0]["objectSid"][0])
152 idmap = IDmapDB(lp=self.lp)
154 user = pwd.getpwnam(unixname)
155 # setup ID mapping for this UID
157 idmap.setup_name_mapping(user_sid, idmap.TYPE_UID, user[2])
162 if force_password_change_at_next_login:
163 self.force_password_change_at_next_login(user_dn)
165 # modify the userAccountControl to remove the disabled bit
166 self.enable_account(user_dn)
168 self.transaction_cancel()
170 self.transaction_commit()
172 def setpassword(self, filter, password, force_password_change_at_next_login=False):
173 """Set a password on a user record
175 :param filter: LDAP filter to find the user (eg samccountname=name)
176 :param password: Password for the user
179 self.transaction_start()
181 # find the DNs for the domain
182 res = self.search("", scope=ldb.SCOPE_BASE,
183 expression="(defaultNamingContext=*)",
184 attrs=["defaultNamingContext"])
185 assert(len(res) == 1 and res[0]["defaultNamingContext"] is not None)
186 domain_dn = res[0]["defaultNamingContext"][0]
187 assert(domain_dn is not None)
189 res = self.search(domain_dn, scope=ldb.SCOPE_SUBTREE,
192 assert(len(res) == 1)
198 replace: userPassword
200 """ % (user_dn, base64.b64encode(password))
202 self.modify_ldif(setpw)
204 if force_password_change_at_next_login:
205 self.force_password_change_at_next_login(user_dn)
207 # modify the userAccountControl to remove the disabled bit
208 self.enable_account(user_dn)
210 self.transaction_cancel()
212 self.transaction_commit()
214 def set_domain_sid(self, sid):
215 """Change the domain SID used by this SamDB.
217 :param sid: The new domain sid to use.
219 glue.samdb_set_domain_sid(self, sid)
221 def attach_schema_from_ldif(self, pf, df):
222 glue.dsdb_attach_schema_from_ldif(self, pf, df)
224 def convert_schema_to_openldap(self, target, mapping):
225 return glue.dsdb_convert_schema_to_openldap(self, target, mapping)
227 def set_invocation_id(self, invocation_id):
228 """Set the invocation id for this SamDB handle.
230 :param invocation_id: GUID of the invocation id.
232 glue.dsdb_set_ntds_invocation_id(self, invocation_id)
234 def setexpiry(self, user, expiry_seconds, noexpiry):
235 """Set the account expiry for a user
237 :param expiry_seconds: expiry time from now in seconds
238 :param noexpiry: if set, then don't expire password
240 self.transaction_start()
242 res = self.search(base=self.domain_dn(), scope=ldb.SCOPE_SUBTREE,
243 expression=("(samAccountName=%s)" % user),
244 attrs=["userAccountControl", "accountExpires"])
246 userAccountControl = int(res[0]["userAccountControl"][0])
247 accountExpires = int(res[0]["accountExpires"][0])
249 userAccountControl = userAccountControl | 0x10000
252 userAccountControl = userAccountControl & ~0x10000
253 accountExpires = glue.unix2nttime(expiry_seconds + int(time.time()))
258 replace: userAccountControl
259 userAccountControl: %u
260 replace: accountExpires
262 """ % (res[0].dn, userAccountControl, accountExpires)
263 # now change the database
264 self.modify_ldif(mod)
266 self.transaction_cancel()
268 self.transaction_commit();