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