source4/scripting/python/pyglue.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include "includes.h"
  20 #include "ldb.h"
  21 #include "ldb_errors.h"
  22 #include "param/param.h"
  23 #include "auth/credentials/credentials.h"
  24 #include "dsdb/samdb/samdb.h"
  25 #include "lib/ldb-samba/ldif_handlers.h"
  26 #include "librpc/ndr/libndr.h"
  27 #include "version.h"
  28 #include <Python.h>
  29 #include "lib/ldb/pyldb.h"
  30 #include "libcli/util/pyerrors.h"
  31 #include "libcli/security/security.h"
  32 #include "auth/pyauth.h"
  33 #include "param/pyparam.h"
  34 #include "auth/credentials/pycredentials.h"
  35
  36 #ifndef Py_RETURN_NONE
  37 #define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
  38 #endif
  39
  40 /* FIXME: These should be in a header file somewhere, once we finish moving
  41  * away from SWIG .. */
  42 #define PyErr_LDB_OR_RAISE(py_ldb, ldb) \
  43 /*      if (!PyLdb_Check(py_ldb)) { \
  44                 PyErr_SetString(py_ldb_get_exception(), "Ldb connection object required"); \
  45                 return NULL; \
  46         } */\
  47         ldb = PyLdb_AsLdbContext(py_ldb);
  48
  49
  50 static PyObject *py_ldb_get_exception(void)
  51 {
  52         PyObject *mod = PyImport_ImportModule("ldb");
  53         if (mod == NULL)
  54                 return NULL;
  55
  56         return PyObject_GetAttrString(mod, "LdbError");
  57 }
  58
  59 static PyObject *py_generate_random_str(PyObject *self, PyObject *args)
  60 {
  61         int len;
  62         PyObject *ret;
  63         char *retstr;
  64         if (!PyArg_ParseTuple(args, "i", &len))
  65                 return NULL;
  66
  67         retstr = generate_random_str(NULL, len);
  68         ret = PyString_FromString(retstr);
  69         talloc_free(retstr);
  70         return ret;
  71 }
  72
  73 static PyObject *py_unix2nttime(PyObject *self, PyObject *args)
  74 {
  75         time_t t;
  76         NTTIME nt;
  77         if (!PyArg_ParseTuple(args, "I", &t))
  78                 return NULL;
  79
  80         unix_to_nt_time(&nt, t);
  81
  82         return PyInt_FromLong((uint64_t)nt);
  83 }
  84
  85 static PyObject *py_ldb_set_credentials(PyObject *self, PyObject *args)
  86 {
  87         PyObject *py_creds, *py_ldb;
  88         struct cli_credentials *creds;
  89         struct ldb_context *ldb;
  90         if (!PyArg_ParseTuple(args, "OO", &py_ldb, &py_creds))
  91                 return NULL;
  92
  93         PyErr_LDB_OR_RAISE(py_ldb, ldb);
  94
  95         creds = cli_credentials_from_py_object(py_creds);
  96         if (creds == NULL) {
  97                 PyErr_SetString(PyExc_TypeError, "Expected credentials object");
  98                 return NULL;
  99         }
 100
 101         ldb_set_opaque(ldb, "credentials", creds);
 102
 103         Py_RETURN_NONE;
 104 }
 105
 106 static PyObject *py_ldb_set_loadparm(PyObject *self, PyObject *args)
 107 {
 108         PyObject *py_lp_ctx, *py_ldb;
 109         struct loadparm_context *lp_ctx;
 110         struct ldb_context *ldb;
 111         if (!PyArg_ParseTuple(args, "OO", &py_ldb, &py_lp_ctx))
 112                 return NULL;
 113
 114         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 115
 116         lp_ctx = lp_from_py_object(py_lp_ctx);
 117         if (lp_ctx == NULL) {
 118                 PyErr_SetString(PyExc_TypeError, "Expected loadparm object");
 119                 return NULL;
 120         }
 121
 122         ldb_set_opaque(ldb, "loadparm", lp_ctx);
 123
 124         Py_RETURN_NONE;
 125 }
 126
 127
 128 static PyObject *py_ldb_set_session_info(PyObject *self, PyObject *args)
 129 {
 130         PyObject *py_session_info, *py_ldb;
 131         struct auth_session_info *info;
 132         struct ldb_context *ldb;
 133         if (!PyArg_ParseTuple(args, "OO", &py_ldb, &py_session_info))
 134                 return NULL;
 135
 136         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 137         /*if (!PyAuthSession_Check(py_session_info)) {
 138                 PyErr_SetString(PyExc_TypeError, "Expected session info object");
 139                 return NULL;
 140         }*/
 141
 142         info = PyAuthSession_AsSession(py_session_info);
 143
 144         ldb_set_opaque(ldb, "sessionInfo", info);
 145
 146         Py_RETURN_NONE;
 147 }
 148
 149 static PyObject *py_samdb_set_domain_sid(PyLdbObject *self, PyObject *args)
 150 {
 151         PyObject *py_ldb, *py_sid;
 152         struct ldb_context *ldb;
 153         struct dom_sid *sid;
 154         bool ret;
 155
 156         if (!PyArg_ParseTuple(args, "OO", &py_ldb, &py_sid))
 157                 return NULL;
 158
 159         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 160
 161         sid = dom_sid_parse_talloc(NULL, PyString_AsString(py_sid));
 162
 163         ret = samdb_set_domain_sid(ldb, sid);
 164         if (!ret) {
 165                 PyErr_SetString(PyExc_RuntimeError, "set_domain_sid failed");
 166                 return NULL;
 167         }
 168         Py_RETURN_NONE;
 169 }
 170
 171 static PyObject *py_ldb_register_samba_handlers(PyObject *self, PyObject *args)
 172 {
 173         PyObject *py_ldb;
 174         struct ldb_context *ldb;
 175         int ret;
 176
 177         if (!PyArg_ParseTuple(args, "O", &py_ldb))
 178                 return NULL;
 179
 180         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 181         ret = ldb_register_samba_handlers(ldb);
 182
 183         PyErr_LDB_ERROR_IS_ERR_RAISE(py_ldb_get_exception(), ret, ldb);
 184         Py_RETURN_NONE;
 185 }
 186
 187 static PyObject *py_dsdb_set_ntds_invocation_id(PyObject *self, PyObject *args)
 188 {
 189         PyObject *py_ldb, *py_guid;
 190         bool ret;
 191         struct GUID guid;
 192         struct ldb_context *ldb;
 193         if (!PyArg_ParseTuple(args, "OO", &py_ldb, &py_guid))
 194                 return NULL;
 195
 196         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 197         GUID_from_string(PyString_AsString(py_guid), &guid);
 198
 199         ret = samdb_set_ntds_invocation_id(ldb, &guid);
 200         if (!ret) {
 201                 PyErr_SetString(PyExc_RuntimeError, "set_ntds_invocation_id failed");
 202                 return NULL;
 203         }
 204         Py_RETURN_NONE;
 205 }
 206
 207 static PyObject *py_dsdb_set_opaque_integer(PyObject *self, PyObject *args)
 208 {
 209         PyObject *py_ldb;
 210         int value;
 211         int *old_val, *new_val;
 212         char *py_opaque_name, *opaque_name_talloc;
 213         struct ldb_context *ldb;
 214         TALLOC_CTX *tmp_ctx;
 215
 216         if (!PyArg_ParseTuple(args, "Osi", &py_ldb, &py_opaque_name, &value))
 217                 return NULL;
 218
 219         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 220
 221         /* see if we have a cached copy */
 222         old_val = (int *)ldb_get_opaque(ldb,
 223                                         py_opaque_name);
 224
 225         if (old_val) {
 226                 *old_val = value;
 227                 Py_RETURN_NONE;
 228         }
 229
 230         tmp_ctx = talloc_new(ldb);
 231         if (tmp_ctx == NULL) {
 232                 goto failed;
 233         }
 234
 235         new_val = talloc(tmp_ctx, int);
 236         if (!new_val) {
 237                 goto failed;
 238         }
 239
 240         opaque_name_talloc = talloc_strdup(tmp_ctx, py_opaque_name);
 241         if (!opaque_name_talloc) {
 242                 goto failed;
 243         }
 244
 245         *new_val = value;
 246
 247         /* cache the domain_sid in the ldb */
 248         if (ldb_set_opaque(ldb, opaque_name_talloc, new_val) != LDB_SUCCESS) {
 249                 goto failed;
 250         }
 251
 252         talloc_steal(ldb, new_val);
 253         talloc_steal(ldb, opaque_name_talloc);
 254         talloc_free(tmp_ctx);
 255
 256         Py_RETURN_NONE;
 257
 258 failed:
 259         talloc_free(tmp_ctx);
 260         PyErr_SetString(PyExc_RuntimeError, "Failed to set opaque integer into the ldb!\n");
 261         return NULL;
 262 }
 263
 264 static PyObject *py_dsdb_set_global_schema(PyObject *self, PyObject *args)
 265 {
 266         PyObject *py_ldb;
 267         struct ldb_context *ldb;
 268         int ret;
 269         if (!PyArg_ParseTuple(args, "O", &py_ldb))
 270                 return NULL;
 271
 272         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 273
 274         ret = dsdb_set_global_schema(ldb);
 275         PyErr_LDB_ERROR_IS_ERR_RAISE(py_ldb_get_exception(), ret, ldb);
 276
 277         Py_RETURN_NONE;
 278 }
 279
 280 static PyObject *py_dsdb_attach_schema_from_ldif(PyObject *self, PyObject *args)
 281 {
 282         WERROR result;
 283         char *pf, *df;
 284         PyObject *py_ldb;
 285         struct ldb_context *ldb;
 286
 287         if (!PyArg_ParseTuple(args, "Oss", &py_ldb, &pf, &df))
 288                 return NULL;
 289
 290         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 291
 292         result = dsdb_attach_schema_from_ldif(ldb, pf, df);
 293         PyErr_WERROR_IS_ERR_RAISE(result);
 294
 295         Py_RETURN_NONE;
 296 }
 297
 298 static PyObject *py_dsdb_convert_schema_to_openldap(PyObject *self, PyObject *args)
 299 {
 300         char *target_str, *mapping;
 301         PyObject *py_ldb;
 302         struct ldb_context *ldb;
 303         PyObject *ret;
 304         char *retstr;
 305
 306         if (!PyArg_ParseTuple(args, "Oss", &py_ldb, &target_str, &mapping))
 307                 return NULL;
 308
 309         PyErr_LDB_OR_RAISE(py_ldb, ldb);
 310
 311         retstr = dsdb_convert_schema_to_openldap(ldb, target_str, mapping);
 312         if (!retstr) {
 313                 PyErr_SetString(PyExc_RuntimeError, "dsdb_convert_schema_to_openldap failed");
 314                 return NULL;
 315         }
 316         ret = PyString_FromString(retstr);
 317         talloc_free(retstr);
 318         return ret;
 319 }
 320
 321 static PyMethodDef py_misc_methods[] = {
 322         { "generate_random_str", (PyCFunction)py_generate_random_str, METH_VARARGS,
 323                 "random_password(len) -> string\n"
 324                 "Generate random password with specified length." },
 325         { "unix2nttime", (PyCFunction)py_unix2nttime, METH_VARARGS,
 326                 "unix2nttime(timestamp) -> nttime" },
 327         { "ldb_set_credentials", (PyCFunction)py_ldb_set_credentials, METH_VARARGS,
 328                 "ldb_set_credentials(ldb, credentials) -> None\n"
 329                 "Set credentials to use when connecting." },
 330         { "ldb_set_session_info", (PyCFunction)py_ldb_set_session_info, METH_VARARGS,
 331                 "ldb_set_session_info(ldb, session_info)\n"
 332                 "Set session info to use when connecting." },
 333         { "ldb_set_loadparm", (PyCFunction)py_ldb_set_loadparm, METH_VARARGS,
 334                 "ldb_set_loadparm(ldb, session_info)\n"
 335                 "Set loadparm context to use when connecting." },
 336         { "samdb_set_domain_sid", (PyCFunction)py_samdb_set_domain_sid, METH_VARARGS,
 337                 "samdb_set_domain_sid(samdb, sid)\n"
 338                 "Set SID of domain to use." },
 339         { "ldb_register_samba_handlers", (PyCFunction)py_ldb_register_samba_handlers, METH_VARARGS,
 340                 "ldb_register_samba_handlers(ldb)\n"
 341                 "Register Samba-specific LDB modules and schemas." },
 342         { "dsdb_set_ntds_invocation_id", (PyCFunction)py_dsdb_set_ntds_invocation_id, METH_VARARGS,
 343                 NULL },
 344         { "dsdb_set_opaque_integer", (PyCFunction)py_dsdb_set_opaque_integer, METH_VARARGS,
 345                 NULL },
 346         { "dsdb_set_global_schema", (PyCFunction)py_dsdb_set_global_schema, METH_VARARGS,
 347                 NULL },
 348         { "dsdb_attach_schema_from_ldif", (PyCFunction)py_dsdb_attach_schema_from_ldif, METH_VARARGS,
 349                 NULL },
 350         { "dsdb_convert_schema_to_openldap", (PyCFunction)py_dsdb_convert_schema_to_openldap, METH_VARARGS,
 351                 NULL },
 352         { NULL }
 353 };
 354
 355 void initglue(void)
 356 {
 357         PyObject *m;
 358
 359         m = Py_InitModule3("glue", py_misc_methods,
 360                            "Python bindings for miscellaneous Samba functions.");
 361         if (m == NULL)
 362                 return;
 363
 364         PyModule_AddObject(m, "version", PyString_FromString(SAMBA_VERSION_STRING));
 365 }
 366