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/*
* Copyright (c) 2015 Balabit
* Copyright (c) 2014 Gergely Nagy <algernon@balabit.hu>
* Copyright (c) 2015 Balazs Scheidler <balazs.scheidler@balabit.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "python-value-pairs.h"
#include "python-helpers.h"
#include "messages.h"
/** Value pairs **/
static void
add_long_to_dict(PyObject *dict, const gchar *name, long num)
{
gchar buf[256];
PyObject *pyobject_to_add = PyLong_FromLong(num);
if (!pyobject_to_add)
{
msg_error("Error while constructing python object",
evt_tag_str("exception", _py_format_exception_text(buf, sizeof(buf))));
_py_finish_exception_handling();
return;
}
PyDict_SetItemString(dict, name, pyobject_to_add);
Py_DECREF(pyobject_to_add);
}
static void
add_string_to_dict(PyObject *dict, const gchar *name, const char *value, gsize value_len)
{
gchar buf[256];
PyObject *pyobject_to_add = PyBytes_FromStringAndSize(value, value_len);
if (!pyobject_to_add)
{
msg_error("Error while constructing python object",
evt_tag_str("exception", _py_format_exception_text(buf, sizeof(buf))));
_py_finish_exception_handling();
return;
}
PyDict_SetItemString(dict, name, pyobject_to_add);
Py_DECREF(pyobject_to_add);
}
static gboolean
python_worker_vp_add_one(const gchar *name,
TypeHint type, const gchar *value, gsize value_len,
gpointer user_data)
{
const LogTemplateOptions *template_options = (const LogTemplateOptions *)((gpointer *)user_data)[0];
PyObject *dict = (PyObject *)((gpointer *)user_data)[1];
gboolean need_drop = FALSE;
gboolean fallback = template_options->on_error & ON_ERROR_FALLBACK_TO_STRING;
switch (type)
{
case TYPE_HINT_INT32:
case TYPE_HINT_INT64:
{
gint64 i;
if (type_cast_to_int64(value, &i, NULL))
{
add_long_to_dict(dict, name, i);
}
else
{
need_drop = type_cast_drop_helper(template_options->on_error,
value, "int");
if (fallback)
{
add_string_to_dict(dict, name, value, value_len);
}
}
break;
}
case TYPE_HINT_STRING:
add_string_to_dict(dict, name, value, value_len);
break;
default:
need_drop = type_cast_drop_helper(template_options->on_error,
value, "<unknown>");
break;
}
return need_drop;
}
/** Main code **/
gboolean
py_value_pairs_apply(ValuePairs *vp, const LogTemplateOptions *template_options, guint32 seq_num, LogMessage *msg,
PyObject **dict)
{
gpointer args[2];
gboolean vp_ok;
*dict = PyDict_New();
args[0] = (gpointer) template_options;
args[1] = *dict;
vp_ok = value_pairs_foreach(vp, python_worker_vp_add_one,
msg, seq_num, LTZ_LOCAL, template_options,
args);
if (!vp_ok)
{
Py_DECREF(*dict);
*dict = NULL;
}
return vp_ok;
}
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