source4/lib/registry/pyregistry.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include <Python.h>
  22 #include "libcli/util/pyerrors.h"
  23 #include "lib/registry/registry.h"
  24 #include "scripting/python/modules.h" /* for py_iconv_convenience() */
  25 #include <pytalloc.h>
  26 #include <tevent.h>
  27
  28 extern struct loadparm_context *lp_from_py_object(PyObject *py_obj);
  29 extern struct cli_credentials *cli_credentials_from_py_object(PyObject *py_obj);
  30
  31 PyAPI_DATA(PyTypeObject) PyRegistryKey;
  32 PyAPI_DATA(PyTypeObject) PyRegistry;
  33 PyAPI_DATA(PyTypeObject) PyHiveKey;
  34
  35 static PyObject *py_get_predefined_key_by_name(PyObject *self, PyObject *args)
  36 {
  37         char *name;
  38         WERROR result;
  39         struct registry_context *ctx = py_talloc_get_ptr(self);
  40         struct registry_key *key;
  41
  42         if (!PyArg_ParseTuple(args, "s", &name))
  43                 return NULL;
  44
  45         result = reg_get_predefined_key_by_name(ctx, name, &key);
  46         PyErr_WERROR_IS_ERR_RAISE(result);
  47
  48         return py_talloc_import(&PyRegistryKey, key);
  49 }
  50
  51 static PyObject *py_key_del_abs(PyObject *self, PyObject *args)
  52 {
  53         char *path;
  54         WERROR result;
  55         struct registry_context *ctx = py_talloc_get_ptr(self);
  56
  57         if (!PyArg_ParseTuple(args, "s", &path))
  58                 return NULL;
  59
  60         result = reg_key_del_abs(ctx, path);
  61         PyErr_WERROR_IS_ERR_RAISE(result);
  62
  63         return Py_None;
  64 }
  65
  66 static PyObject *py_get_predefined_key(PyObject *self, PyObject *args)
  67 {
  68         uint32_t hkey;
  69         struct registry_context *ctx = py_talloc_get_ptr(self);
  70         WERROR result;
  71         struct registry_key *key;
  72
  73         if (!PyArg_ParseTuple(args, "I", &hkey))
  74                 return NULL;
  75
  76         result = reg_get_predefined_key(ctx, hkey, &key);
  77         PyErr_WERROR_IS_ERR_RAISE(result);
  78
  79         return py_talloc_import(&PyRegistryKey, key);
  80 }
  81
  82 static PyObject *py_diff_apply(PyObject *self, PyObject *args)
  83 {
  84         char *filename;
  85         WERROR result;
  86         struct registry_context *ctx = py_talloc_get_ptr(self);
  87         if (!PyArg_ParseTuple(args, "s", &filename))
  88                 return NULL;
  89
  90         result = reg_diff_apply(ctx, py_iconv_convenience(NULL), filename);
  91         PyErr_WERROR_IS_ERR_RAISE(result);
  92
  93         return Py_None;
  94 }
  95
  96 static PyObject *py_mount_hive(PyObject *self, PyObject *args)
  97 {
  98         struct registry_context *ctx = py_talloc_get_ptr(self);
  99         uint32_t hkey;
 100         PyObject *py_hivekey, *py_elements = Py_None;
 101         const char **elements;
 102         WERROR result;
 103
 104         if (!PyArg_ParseTuple(args, "OI|O", &py_hivekey, &hkey, &py_elements))
 105                 return NULL;
 106
 107         if (!PyList_Check(py_elements) && py_elements != Py_None) {
 108                 PyErr_SetString(PyExc_TypeError, "Expected list of elements");
 109                 return NULL;
 110         }
 111
 112         if (py_elements == Py_None) {
 113                 elements = NULL;
 114         } else {
 115                 int i;
 116                 elements = talloc_array(NULL, const char *, PyList_Size(py_elements));
 117                 for (i = 0; i < PyList_Size(py_elements); i++)
 118                         elements[i] = PyString_AsString(PyList_GetItem(py_elements, i));
 119         }
 120
 121         SMB_ASSERT(ctx != NULL);
 122
 123         result = reg_mount_hive(ctx, py_talloc_get_ptr(py_hivekey), hkey, elements);
 124         PyErr_WERROR_IS_ERR_RAISE(result);
 125
 126         return Py_None;
 127 }
 128
 129 static PyObject *registry_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 130 {
 131         WERROR result;
 132         struct registry_context *ctx;
 133         result = reg_open_local(NULL, &ctx);
 134         PyErr_WERROR_IS_ERR_RAISE(result);
 135         return py_talloc_import(&PyRegistry, ctx);
 136 }
 137
 138 static PyMethodDef registry_methods[] = {
 139         { "get_predefined_key_by_name", py_get_predefined_key_by_name, METH_VARARGS,
 140                 "S.get_predefined_key_by_name(name) -> key\n"
 141                 "Find a predefined key by name" },
 142         { "key_del_abs", py_key_del_abs, METH_VARARGS, "S.key_del_abs(name) -> None\n"
 143                 "Delete a key by absolute path." },
 144         { "get_predefined_key", py_get_predefined_key, METH_VARARGS, "S.get_predefined_key(hkey_id) -> key\n"
 145                 "Find a predefined key by id" },
 146         { "diff_apply", py_diff_apply, METH_VARARGS, "S.diff_apply(filename) -> None\n"
 147                 "Apply the diff from the specified file" },
 148         { "mount_hive", py_mount_hive, METH_VARARGS, "S.mount_hive(key, key_id, elements=None) -> None\n"
 149                 "Mount the specified key at the specified path." },
 150         { NULL }
 151 };
 152
 153 PyTypeObject PyRegistry = {
 154         .tp_name = "Registry",
 155         .tp_methods = registry_methods,
 156         .tp_new = registry_new,
 157         .tp_basicsize = sizeof(py_talloc_Object),
 158         .tp_dealloc = py_talloc_dealloc,
 159 };
 160
 161 static PyObject *py_hive_key_del(PyObject *self, PyObject *args)
 162 {
 163         char *name;
 164         struct hive_key *key = py_talloc_get_ptr(self);
 165         WERROR result;
 166
 167         if (!PyArg_ParseTuple(args, "s", &name))
 168                 return NULL;
 169
 170         result = hive_key_del(key, name);
 171
 172         PyErr_WERROR_IS_ERR_RAISE(result);
 173
 174         return Py_None;
 175 }
 176
 177 static PyObject *py_hive_key_flush(PyObject *self)
 178 {
 179         WERROR result;
 180         struct hive_key *key = py_talloc_get_ptr(self);
 181
 182         result = hive_key_flush(key);
 183         PyErr_WERROR_IS_ERR_RAISE(result);
 184
 185         return Py_None;
 186 }
 187
 188 static PyObject *py_hive_key_del_value(PyObject *self, PyObject *args)
 189 {
 190         char *name;
 191         WERROR result;
 192         struct hive_key *key = py_talloc_get_ptr(self);
 193
 194         if (!PyArg_ParseTuple(args, "s", &name))
 195                 return NULL;
 196
 197         result = hive_key_del_value(key, name);
 198
 199         PyErr_WERROR_IS_ERR_RAISE(result);
 200
 201         return Py_None;
 202 }
 203
 204 static PyObject *py_hive_key_set_value(PyObject *self, PyObject *args)
 205 {
 206         char *name;
 207         uint32_t type;
 208         DATA_BLOB value;
 209         WERROR result;
 210         struct hive_key *key = py_talloc_get_ptr(self);
 211
 212         if (!PyArg_ParseTuple(args, "siz#", &name, &type, &value.data, &value.length))
 213                 return NULL;
 214
 215         if (value.data != NULL)
 216                 result = hive_key_set_value(key, name, type, value);
 217         else
 218                 result = hive_key_del_value(key, name);
 219
 220         PyErr_WERROR_IS_ERR_RAISE(result);
 221
 222         return Py_None;
 223 }
 224
 225 static PyMethodDef hive_key_methods[] = {
 226         { "del", py_hive_key_del, METH_VARARGS, "S.del(name) -> None\n"
 227                 "Delete a subkey" },
 228         { "flush", (PyCFunction)py_hive_key_flush, METH_NOARGS, "S.flush() -> None\n"
 229                 "Flush this key to disk" },
 230         { "del_value", py_hive_key_del_value, METH_VARARGS, "S.del_value(name) -> None\n"
 231                  "Delete a value" },
 232         { "set_value", py_hive_key_set_value, METH_VARARGS, "S.set_value(name, type, data) -> None\n"
 233                  "Set a value" },
 234         { NULL }
 235 };
 236
 237 static PyObject *hive_open(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 238 {
 239         /* reg_open_hive */
 240         return Py_None;
 241 }
 242
 243 PyTypeObject PyHiveKey = {
 244         .tp_name = "HiveKey",
 245         .tp_methods = hive_key_methods,
 246         .tp_new = hive_open,
 247         .tp_basicsize = sizeof(py_talloc_Object),
 248         .tp_dealloc = py_talloc_dealloc,
 249 };
 250
 251 PyTypeObject PyRegistryKey = {
 252         .tp_name = "RegistryKey",
 253         .tp_basicsize = sizeof(py_talloc_Object),
 254         .tp_dealloc = py_talloc_dealloc,
 255 };
 256
 257 static PyObject *py_open_samba(PyObject *self, PyObject *args, PyObject *kwargs)
 258 {
 259         const char *kwnames[] = { "lp_ctx", "session_info", NULL };
 260         struct registry_context *reg_ctx;
 261         WERROR result;
 262     struct loadparm_context *lp_ctx;
 263         PyObject *py_lp_ctx, *py_session_info, *py_credentials;
 264         struct auth_session_info *session_info;
 265     struct cli_credentials *credentials;
 266         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOO", discard_const_p(char *, kwnames),
 267                                          &py_lp_ctx, &py_session_info, &py_credentials))
 268                 return NULL;
 269
 270     lp_ctx = lp_from_py_object(py_lp_ctx);
 271     if (lp_ctx == NULL) {
 272                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
 273                 return NULL;
 274     }
 275
 276         credentials = cli_credentials_from_py_object(py_credentials);
 277         if (credentials == NULL) {
 278                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
 279                 return NULL;
 280         }
 281
 282         session_info = NULL; /* FIXME */
 283
 284         result = reg_open_samba(NULL, &reg_ctx, NULL,
 285                                 lp_ctx, session_info, credentials);
 286         if (!W_ERROR_IS_OK(result)) {
 287                 PyErr_SetWERROR(result);
 288                 return NULL;
 289         }
 290
 291         return py_talloc_import(&PyRegistry, reg_ctx);
 292 }
 293
 294 static PyObject *py_open_directory(PyObject *self, PyObject *args)
 295 {
 296         char *location;
 297         WERROR result;
 298         struct hive_key *key;
 299
 300         if (!PyArg_ParseTuple(args, "s", &location))
 301                 return NULL;
 302
 303         result = reg_open_directory(NULL, location, &key);
 304         PyErr_WERROR_IS_ERR_RAISE(result);
 305
 306         return py_talloc_import(&PyHiveKey, key);
 307 }
 308
 309 static PyObject *py_create_directory(PyObject *self, PyObject *args)
 310 {
 311         char *location;
 312         WERROR result;
 313         struct hive_key *key;
 314
 315         if (!PyArg_ParseTuple(args, "s", &location))
 316                 return NULL;
 317
 318         result = reg_create_directory(NULL, location, &key);
 319         PyErr_WERROR_IS_ERR_RAISE(result);
 320
 321         return py_talloc_import(&PyHiveKey, key);
 322 }
 323
 324 static PyObject *py_open_ldb_file(PyObject *self, PyObject *args, PyObject *kwargs)
 325 {
 326         const char *kwnames[] = { "location", "session_info", "credentials", "lp_ctx", NULL };
 327         PyObject *py_session_info = Py_None, *py_credentials = Py_None, *py_lp_ctx = Py_None;
 328         WERROR result;
 329         char *location;
 330     struct loadparm_context *lp_ctx;
 331     struct cli_credentials *credentials;
 332         struct hive_key *key;
 333         struct auth_session_info *session_info;
 334
 335         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|OOO",
 336                                                                          discard_const_p(char *, kwnames),
 337                                                                          &location,
 338                                                                          &py_session_info, &py_credentials,
 339                                                                          &py_lp_ctx))
 340                 return NULL;
 341
 342     lp_ctx = lp_from_py_object(py_lp_ctx);
 343     if (lp_ctx == NULL) {
 344                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
 345                 return NULL;
 346     }
 347
 348         credentials = cli_credentials_from_py_object(py_credentials);
 349         if (credentials == NULL) {
 350                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
 351                 return NULL;
 352         }
 353
 354         session_info = NULL; /* FIXME */
 355
 356         result = reg_open_ldb_file(NULL, location, session_info, credentials,
 357                                                            event_context_init(NULL), lp_ctx, &key);
 358         PyErr_WERROR_IS_ERR_RAISE(result);
 359
 360         return py_talloc_import(&PyHiveKey, key);
 361 }
 362
 363 static PyObject *py_str_regtype(PyObject *self, PyObject *args)
 364 {
 365         int regtype;
 366
 367         if (!PyArg_ParseTuple(args, "i", &regtype))
 368                 return NULL;
 369
 370         return PyString_FromString(str_regtype(regtype));
 371 }
 372
 373 static PyObject *py_get_predef_name(PyObject *self, PyObject *args)
 374 {
 375         uint32_t hkey;
 376         const char *str;
 377
 378         if (!PyArg_ParseTuple(args, "I", &hkey))
 379                 return NULL;
 380
 381         str = reg_get_predef_name(hkey);
 382         if (str == NULL)
 383                 return Py_None;
 384         return PyString_FromString(str);
 385 }
 386
 387 static PyMethodDef py_registry_methods[] = {
 388         { "open_samba", (PyCFunction)py_open_samba, METH_VARARGS|METH_KEYWORDS, "open_samba() -> reg" },
 389         { "open_directory", py_open_directory, METH_VARARGS, "open_dir(location) -> key" },
 390         { "create_directory", py_create_directory, METH_VARARGS, "create_dir(location) -> key" },
 391         { "open_ldb", (PyCFunction)py_open_ldb_file, METH_VARARGS|METH_KEYWORDS, "open_ldb(location, session_info=None, credentials=None, loadparm_context=None) -> key" },
 392         { "str_regtype", py_str_regtype, METH_VARARGS, "str_regtype(int) -> str" },
 393         { "get_predef_name", py_get_predef_name, METH_VARARGS, "get_predef_name(hkey) -> str" },
 394         { NULL }
 395 };
 396
 397 void initregistry(void)
 398 {
 399         PyObject *m;
 400
 401         if (PyType_Ready(&PyHiveKey) < 0)
 402                 return;
 403
 404         if (PyType_Ready(&PyRegistry) < 0)
 405                 return;
 406
 407         if (PyType_Ready(&PyRegistryKey) < 0)
 408                 return;
 409
 410         m = Py_InitModule3("registry", py_registry_methods, "Registry");
 411         if (m == NULL)
 412                 return;
 413
 414         PyModule_AddObject(m, "HKEY_CLASSES_ROOT", PyInt_FromLong(HKEY_CLASSES_ROOT));
 415         PyModule_AddObject(m, "HKEY_CURRENT_USER", PyInt_FromLong(HKEY_CURRENT_USER));
 416         PyModule_AddObject(m, "HKEY_LOCAL_MACHINE", PyInt_FromLong(HKEY_LOCAL_MACHINE));
 417         PyModule_AddObject(m, "HKEY_USERS", PyInt_FromLong(HKEY_USERS));
 418         PyModule_AddObject(m, "HKEY_PERFORMANCE_DATA", PyInt_FromLong(HKEY_PERFORMANCE_DATA));
 419         PyModule_AddObject(m, "HKEY_CURRENT_CONFIG", PyInt_FromLong(HKEY_CURRENT_CONFIG));
 420         PyModule_AddObject(m, "HKEY_DYN_DATA", PyInt_FromLong(HKEY_DYN_DATA));
 421         PyModule_AddObject(m, "HKEY_PERFORMANCE_TEXT", PyInt_FromLong(HKEY_PERFORMANCE_TEXT));
 422         PyModule_AddObject(m, "HKEY_PERFORMANCE_NLSTEXT", PyInt_FromLong(HKEY_PERFORMANCE_NLSTEXT));
 423
 424         Py_INCREF(&PyRegistry);
 425         PyModule_AddObject(m, "Registry", (PyObject *)&PyRegistry);
 426
 427         Py_INCREF(&PyHiveKey);
 428         PyModule_AddObject(m, "HiveKey", (PyObject *)&PyHiveKey);
 429
 430         Py_INCREF(&PyRegistryKey);
 431         PyModule_AddObject(m, "RegistryKey", (PyObject *)&PyRegistryKey);
 432 }