bpo-34052: Prevent SQLite functions from setting callbacks on exceptions. (GH-8113)

This commit is contained in:
Sergey Fedoseev 2018-12-05 22:50:26 +05:00 committed by Serhiy Storchaka
parent f2f4555d82
commit 5b25f1d031
3 changed files with 84 additions and 37 deletions

View file

@ -843,7 +843,9 @@ PyObject* pysqlite_connection_create_function(pysqlite_Connection* self, PyObjec
flags |= SQLITE_DETERMINISTIC;
#endif
}
if (PyDict_SetItem(self->function_pinboard, func, Py_None) == -1) {
return NULL;
}
rc = sqlite3_create_function(self->db,
name,
narg,
@ -857,12 +859,8 @@ PyObject* pysqlite_connection_create_function(pysqlite_Connection* self, PyObjec
/* Workaround for SQLite bug: no error code or string is available here */
PyErr_SetString(pysqlite_OperationalError, "Error creating function");
return NULL;
} else {
if (PyDict_SetItem(self->function_pinboard, func, Py_None) == -1)
return NULL;
Py_RETURN_NONE;
}
Py_RETURN_NONE;
}
PyObject* pysqlite_connection_create_aggregate(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
@ -883,17 +881,16 @@ PyObject* pysqlite_connection_create_aggregate(pysqlite_Connection* self, PyObje
return NULL;
}
if (PyDict_SetItem(self->function_pinboard, aggregate_class, Py_None) == -1) {
return NULL;
}
rc = sqlite3_create_function(self->db, name, n_arg, SQLITE_UTF8, (void*)aggregate_class, 0, &_pysqlite_step_callback, &_pysqlite_final_callback);
if (rc != SQLITE_OK) {
/* Workaround for SQLite bug: no error code or string is available here */
PyErr_SetString(pysqlite_OperationalError, "Error creating aggregate");
return NULL;
} else {
if (PyDict_SetItem(self->function_pinboard, aggregate_class, Py_None) == -1)
return NULL;
Py_RETURN_NONE;
}
Py_RETURN_NONE;
}
static int _authorizer_callback(void* user_arg, int action, const char* arg1, const char* arg2 , const char* dbname, const char* access_attempt_source)
@ -1006,17 +1003,15 @@ static PyObject* pysqlite_connection_set_authorizer(pysqlite_Connection* self, P
return NULL;
}
if (PyDict_SetItem(self->function_pinboard, authorizer_cb, Py_None) == -1) {
return NULL;
}
rc = sqlite3_set_authorizer(self->db, _authorizer_callback, (void*)authorizer_cb);
if (rc != SQLITE_OK) {
PyErr_SetString(pysqlite_OperationalError, "Error setting authorizer callback");
return NULL;
} else {
if (PyDict_SetItem(self->function_pinboard, authorizer_cb, Py_None) == -1)
return NULL;
Py_RETURN_NONE;
}
Py_RETURN_NONE;
}
static PyObject* pysqlite_connection_set_progress_handler(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
@ -1039,9 +1034,9 @@ static PyObject* pysqlite_connection_set_progress_handler(pysqlite_Connection* s
/* None clears the progress handler previously set */
sqlite3_progress_handler(self->db, 0, 0, (void*)0);
} else {
sqlite3_progress_handler(self->db, n, _progress_handler, progress_handler);
if (PyDict_SetItem(self->function_pinboard, progress_handler, Py_None) == -1)
return NULL;
sqlite3_progress_handler(self->db, n, _progress_handler, progress_handler);
}
Py_RETURN_NONE;