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 <Python.h>
  21 #include "includes.h"
  22 #include <tevent.h>
  23 #include "libcli/util/pyerrors.h"
  24 #include "lib/registry/registry.h"
  25 #include "scripting/python/modules.h" /* for py_iconv_convenience() */
  26 #include "lib/talloc/pytalloc.h"
  27 #include "auth/credentials/pycredentials.h"
  28 #include "param/pyparam.h"
  29
  30 PyAPI_DATA(PyTypeObject) PyRegistryKey;
  31 PyAPI_DATA(PyTypeObject) PyRegistry;
  32 PyAPI_DATA(PyTypeObject) PyHiveKey;
  33
  34 /*#define PyRegistryKey_AsRegistryKey(obj) py_talloc_get_type(obj, struct registry_key)*/
  35 #define PyRegistry_AsRegistryContext(obj) ((struct registry_context *)py_talloc_get_ptr(obj))
  36 #define PyHiveKey_AsHiveKey(obj) ((struct hive_key*)py_talloc_get_ptr(obj))
  37
  38
  39 static PyObject *py_get_predefined_key_by_name(PyObject *self, PyObject *args)
  40 {
  41         char *name;
  42         WERROR result;
  43         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
  44         struct registry_key *key;
  45
  46         if (!PyArg_ParseTuple(args, "s", &name))
  47                 return NULL;
  48
  49         result = reg_get_predefined_key_by_name(ctx, name, &key);
  50         PyErr_WERROR_IS_ERR_RAISE(result);
  51
  52         return py_talloc_steal(&PyRegistryKey, key);
  53 }
  54
  55 static PyObject *py_key_del_abs(PyObject *self, PyObject *args)
  56 {
  57         char *path;
  58         WERROR result;
  59         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
  60
  61         if (!PyArg_ParseTuple(args, "s", &path))
  62                 return NULL;
  63
  64         result = reg_key_del_abs(ctx, path);
  65         PyErr_WERROR_IS_ERR_RAISE(result);
  66
  67         Py_RETURN_NONE;
  68 }
  69
  70 static PyObject *py_get_predefined_key(PyObject *self, PyObject *args)
  71 {
  72         uint32_t hkey;
  73         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
  74         WERROR result;
  75         struct registry_key *key;
  76
  77         if (!PyArg_ParseTuple(args, "I", &hkey))
  78                 return NULL;
  79
  80         result = reg_get_predefined_key(ctx, hkey, &key);
  81         PyErr_WERROR_IS_ERR_RAISE(result);
  82
  83         return py_talloc_steal(&PyRegistryKey, key);
  84 }
  85
  86 static PyObject *py_diff_apply(PyObject *self, PyObject *args)
  87 {
  88         char *filename;
  89         WERROR result;
  90         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
  91         if (!PyArg_ParseTuple(args, "s", &filename))
  92                 return NULL;
  93
  94         result = reg_diff_apply(ctx, py_iconv_convenience(NULL), filename);
  95         PyErr_WERROR_IS_ERR_RAISE(result);
  96
  97         Py_RETURN_NONE;
  98 }
  99
 100 static PyObject *py_mount_hive(PyObject *self, PyObject *args)
 101 {
 102         struct registry_context *ctx = PyRegistry_AsRegistryContext(self);
 103         uint32_t hkey;
 104         PyObject *py_hivekey, *py_elements = Py_None;
 105         const char **elements;
 106         WERROR result;
 107
 108         if (!PyArg_ParseTuple(args, "OI|O", &py_hivekey, &hkey, &py_elements))
 109                 return NULL;
 110
 111         if (!PyList_Check(py_elements) && py_elements != Py_None) {
 112                 PyErr_SetString(PyExc_TypeError, "Expected list of elements");
 113                 return NULL;
 114         }
 115
 116         if (py_elements == Py_None) {
 117                 elements = NULL;
 118         } else {
 119                 int i;
 120                 elements = talloc_array(NULL, const char *, PyList_Size(py_elements));
 121                 for (i = 0; i < PyList_Size(py_elements); i++)
 122                         elements[i] = PyString_AsString(PyList_GetItem(py_elements, i));
 123         }
 124
 125         SMB_ASSERT(ctx != NULL);
 126
 127         result = reg_mount_hive(ctx, PyHiveKey_AsHiveKey(py_hivekey), hkey, elements);
 128         PyErr_WERROR_IS_ERR_RAISE(result);
 129
 130         Py_RETURN_NONE;
 131 }
 132
 133 static PyObject *registry_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 134 {
 135         WERROR result;
 136         struct registry_context *ctx;
 137         result = reg_open_local(NULL, &ctx);
 138         PyErr_WERROR_IS_ERR_RAISE(result);
 139         return py_talloc_steal(&PyRegistry, ctx);
 140 }
 141
 142 static PyMethodDef registry_methods[] = {
 143         { "get_predefined_key_by_name", py_get_predefined_key_by_name, METH_VARARGS,
 144                 "S.get_predefined_key_by_name(name) -> key\n"
 145                 "Find a predefined key by name" },
 146         { "key_del_abs", py_key_del_abs, METH_VARARGS, "S.key_del_abs(name) -> None\n"
 147                 "Delete a key by absolute path." },
 148         { "get_predefined_key", py_get_predefined_key, METH_VARARGS, "S.get_predefined_key(hkey_id) -> key\n"
 149                 "Find a predefined key by id" },
 150         { "diff_apply", py_diff_apply, METH_VARARGS, "S.diff_apply(filename) -> None\n"
 151                 "Apply the diff from the specified file" },
 152         { "mount_hive", py_mount_hive, METH_VARARGS, "S.mount_hive(key, key_id, elements=None) -> None\n"
 153                 "Mount the specified key at the specified path." },
 154         { NULL }
 155 };
 156
 157 PyTypeObject PyRegistry = {
 158         .tp_name = "Registry",
 159         .tp_methods = registry_methods,
 160         .tp_new = registry_new,
 161         .tp_basicsize = sizeof(py_talloc_Object),
 162         .tp_dealloc = py_talloc_dealloc,
 163         .tp_flags = Py_TPFLAGS_DEFAULT,
 164 };
 165
 166 static PyObject *py_hive_key_del(PyObject *self, PyObject *args)
 167 {
 168         char *name;
 169         struct hive_key *key = PyHiveKey_AsHiveKey(self);
 170         WERROR result;
 171
 172         if (!PyArg_ParseTuple(args, "s", &name))
 173                 return NULL;
 174
 175         result = hive_key_del(NULL, key, name);
 176
 177         PyErr_WERROR_IS_ERR_RAISE(result);
 178
 179         Py_RETURN_NONE;
 180 }
 181
 182 static PyObject *py_hive_key_flush(PyObject *self)
 183 {
 184         WERROR result;
 185         struct hive_key *key = PyHiveKey_AsHiveKey(self);
 186
 187         result = hive_key_flush(key);
 188         PyErr_WERROR_IS_ERR_RAISE(result);
 189
 190         Py_RETURN_NONE;
 191 }
 192
 193 static PyObject *py_hive_key_del_value(PyObject *self, PyObject *args)
 194 {
 195         char *name;
 196         WERROR result;
 197         struct hive_key *key = PyHiveKey_AsHiveKey(self);
 198
 199         if (!PyArg_ParseTuple(args, "s", &name))
 200                 return NULL;
 201
 202         result = hive_key_del_value(NULL, key, name);
 203
 204         PyErr_WERROR_IS_ERR_RAISE(result);
 205
 206         Py_RETURN_NONE;
 207 }
 208
 209 static PyObject *py_hive_key_set_value(PyObject *self, PyObject *args)
 210 {
 211         char *name;
 212         uint32_t type;
 213         DATA_BLOB value;
 214         WERROR result;
 215         struct hive_key *key = PyHiveKey_AsHiveKey(self);
 216
 217         if (!PyArg_ParseTuple(args, "siz#", &name, &type, &value.data, &value.length))
 218                 return NULL;
 219
 220         if (value.data != NULL)
 221                 result = hive_key_set_value(key, name, type, value);
 222         else
 223                 result = hive_key_del_value(NULL, key, name);
 224
 225         PyErr_WERROR_IS_ERR_RAISE(result);
 226
 227         Py_RETURN_NONE;
 228 }
 229
 230 static PyMethodDef hive_key_methods[] = {
 231         { "del", py_hive_key_del, METH_VARARGS, "S.del(name) -> None\n"
 232                 "Delete a subkey" },
 233         { "flush", (PyCFunction)py_hive_key_flush, METH_NOARGS, "S.flush() -> None\n"
 234                 "Flush this key to disk" },
 235         { "del_value", py_hive_key_del_value, METH_VARARGS, "S.del_value(name) -> None\n"
 236                  "Delete a value" },
 237         { "set_value", py_hive_key_set_value, METH_VARARGS, "S.set_value(name, type, data) -> None\n"
 238                  "Set a value" },
 239         { NULL }
 240 };
 241
 242 static PyObject *hive_open(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 243 {
 244         /* reg_open_hive */
 245         Py_RETURN_NONE;
 246 }
 247
 248 PyTypeObject PyHiveKey = {
 249         .tp_name = "HiveKey",
 250         .tp_methods = hive_key_methods,
 251         .tp_new = hive_open,
 252         .tp_basicsize = sizeof(py_talloc_Object),
 253         .tp_dealloc = py_talloc_dealloc,
 254         .tp_flags = Py_TPFLAGS_DEFAULT,
 255 };
 256
 257 PyTypeObject PyRegistryKey = {
 258         .tp_name = "RegistryKey",
 259         .tp_basicsize = sizeof(py_talloc_Object),
 260         .tp_dealloc = py_talloc_dealloc,
 261         .tp_flags = Py_TPFLAGS_DEFAULT,
 262 };
 263
 264 static PyObject *py_open_samba(PyObject *self, PyObject *args, PyObject *kwargs)
 265 {
 266         const char *kwnames[] = { "lp_ctx", "session_info", NULL };
 267         struct registry_context *reg_ctx;
 268         WERROR result;
 269         struct loadparm_context *lp_ctx;
 270         PyObject *py_lp_ctx, *py_session_info, *py_credentials;
 271         struct auth_session_info *session_info;
 272         struct cli_credentials *credentials;
 273         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOO",
 274                                          discard_const_p(char *, kwnames),
 275                                          &py_lp_ctx, &py_session_info,
 276                                          &py_credentials))
 277                 return NULL;
 278
 279         lp_ctx = lp_from_py_object(py_lp_ctx);
 280         if (lp_ctx == NULL) {
 281                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
 282                 return NULL;
 283         }
 284
 285         credentials = cli_credentials_from_py_object(py_credentials);
 286         if (credentials == NULL) {
 287                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
 288                 return NULL;
 289         }
 290
 291         session_info = NULL; /* FIXME */
 292
 293         result = reg_open_samba(NULL, &reg_ctx, NULL,
 294                                 lp_ctx, session_info, credentials);
 295         if (!W_ERROR_IS_OK(result)) {
 296                 PyErr_SetWERROR(result);
 297                 return NULL;
 298         }
 299
 300         return py_talloc_steal(&PyRegistry, reg_ctx);
 301 }
 302
 303 static PyObject *py_open_directory(PyObject *self, PyObject *args)
 304 {
 305         char *location;
 306         WERROR result;
 307         struct hive_key *key;
 308
 309         if (!PyArg_ParseTuple(args, "s", &location))
 310                 return NULL;
 311
 312         result = reg_open_directory(NULL, location, &key);
 313         PyErr_WERROR_IS_ERR_RAISE(result);
 314
 315         return py_talloc_steal(&PyHiveKey, key);
 316 }
 317
 318 static PyObject *py_create_directory(PyObject *self, PyObject *args)
 319 {
 320         char *location;
 321         WERROR result;
 322         struct hive_key *key;
 323
 324         if (!PyArg_ParseTuple(args, "s", &location))
 325                 return NULL;
 326
 327         result = reg_create_directory(NULL, location, &key);
 328         PyErr_WERROR_IS_ERR_RAISE(result);
 329
 330         return py_talloc_steal(&PyHiveKey, key);
 331 }
 332
 333 static PyObject *py_open_ldb_file(PyObject *self, PyObject *args, PyObject *kwargs)
 334 {
 335         const char *kwnames[] = { "location", "session_info", "credentials", "lp_ctx", NULL };
 336         PyObject *py_session_info = Py_None, *py_credentials = Py_None, *py_lp_ctx = Py_None;
 337         WERROR result;
 338         char *location;
 339         struct loadparm_context *lp_ctx;
 340         struct cli_credentials *credentials;
 341         struct hive_key *key;
 342         struct auth_session_info *session_info;
 343
 344         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|OOO",
 345                                          discard_const_p(char *, kwnames),
 346                                          &location, &py_session_info,
 347                                          &py_credentials, &py_lp_ctx))
 348                 return NULL;
 349
 350         lp_ctx = lp_from_py_object(py_lp_ctx);
 351         if (lp_ctx == NULL) {
 352                 PyErr_SetString(PyExc_TypeError, "Expected loadparm context");
 353                 return NULL;
 354         }
 355
 356         credentials = cli_credentials_from_py_object(py_credentials);
 357         if (credentials == NULL) {
 358                 PyErr_SetString(PyExc_TypeError, "Expected credentials");
 359                 return NULL;
 360         }
 361
 362         session_info = NULL; /* FIXME */
 363
 364         result = reg_open_ldb_file(NULL, location, session_info, credentials,
 365                                    tevent_context_init(NULL), lp_ctx, &key);
 366         PyErr_WERROR_IS_ERR_RAISE(result);
 367
 368         return py_talloc_steal(&PyHiveKey, key);
 369 }
 370
 371 static PyObject *py_str_regtype(PyObject *self, PyObject *args)
 372 {
 373         int regtype;
 374
 375         if (!PyArg_ParseTuple(args, "i", &regtype))
 376                 return NULL;
 377
 378         return PyString_FromString(str_regtype(regtype));
 379 }
 380
 381 static PyObject *py_get_predef_name(PyObject *self, PyObject *args)
 382 {
 383         uint32_t hkey;
 384         const char *str;
 385
 386         if (!PyArg_ParseTuple(args, "I", &hkey))
 387                 return NULL;
 388
 389         str = reg_get_predef_name(hkey);
 390         if (str == NULL)
 391                 Py_RETURN_NONE;
 392         return PyString_FromString(str);
 393 }
 394
 395 static PyMethodDef py_registry_methods[] = {
 396         { "open_samba", (PyCFunction)py_open_samba, METH_VARARGS|METH_KEYWORDS, "open_samba() -> reg" },
 397         { "open_directory", py_open_directory, METH_VARARGS, "open_dir(location) -> key" },
 398         { "create_directory", py_create_directory, METH_VARARGS, "create_dir(location) -> key" },
 399         { "open_ldb", (PyCFunction)py_open_ldb_file, METH_VARARGS|METH_KEYWORDS, "open_ldb(location, session_info=None, credentials=None, loadparm_context=None) -> key" },
 400         { "str_regtype", py_str_regtype, METH_VARARGS, "str_regtype(int) -> str" },
 401         { "get_predef_name", py_get_predef_name, METH_VARARGS, "get_predef_name(hkey) -> str" },
 402         { NULL }
 403 };
 404
 405 void initregistry(void)
 406 {
 407         PyObject *m;
 408
 409         if (PyType_Ready(&PyHiveKey) < 0)
 410                 return;
 411
 412         if (PyType_Ready(&PyRegistry) < 0)
 413                 return;
 414
 415         if (PyType_Ready(&PyRegistryKey) < 0)
 416                 return;
 417
 418         m = Py_InitModule3("registry", py_registry_methods, "Registry");
 419         if (m == NULL)
 420                 return;
 421
 422         PyModule_AddObject(m, "HKEY_CLASSES_ROOT", PyInt_FromLong(HKEY_CLASSES_ROOT));
 423         PyModule_AddObject(m, "HKEY_CURRENT_USER", PyInt_FromLong(HKEY_CURRENT_USER));
 424         PyModule_AddObject(m, "HKEY_LOCAL_MACHINE", PyInt_FromLong(HKEY_LOCAL_MACHINE));
 425         PyModule_AddObject(m, "HKEY_USERS", PyInt_FromLong(HKEY_USERS));
 426         PyModule_AddObject(m, "HKEY_PERFORMANCE_DATA", PyInt_FromLong(HKEY_PERFORMANCE_DATA));
 427         PyModule_AddObject(m, "HKEY_CURRENT_CONFIG", PyInt_FromLong(HKEY_CURRENT_CONFIG));
 428         PyModule_AddObject(m, "HKEY_DYN_DATA", PyInt_FromLong(HKEY_DYN_DATA));
 429         PyModule_AddObject(m, "HKEY_PERFORMANCE_TEXT", PyInt_FromLong(HKEY_PERFORMANCE_TEXT));
 430         PyModule_AddObject(m, "HKEY_PERFORMANCE_NLSTEXT", PyInt_FromLong(HKEY_PERFORMANCE_NLSTEXT));
 431
 432         Py_INCREF(&PyRegistry);
 433         PyModule_AddObject(m, "Registry", (PyObject *)&PyRegistry);
 434
 435         Py_INCREF(&PyHiveKey);
 436         PyModule_AddObject(m, "HiveKey", (PyObject *)&PyHiveKey);
 437
 438         Py_INCREF(&PyRegistryKey);
 439         PyModule_AddObject(m, "RegistryKey", (PyObject *)&PyRegistryKey);
 440 }