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/*
* Copyright (c) 2022 Balazs Scheidler <bazsi77@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; 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 "value-pairs/cmdline.h"
typedef enum
{
TFVP_NAMES,
TFVP_VALUES,
} TFValuePairsResultType;
typedef struct _TFValuePairsState
{
TFSimpleFuncState super;
ValuePairs *vp;
TFValuePairsResultType result_type;
} TFValuePairsState;
typedef struct _TFValuePairsIterState
{
GString *result;
gsize initial_len;
TFValuePairsResultType result_type;
} TFValuePairsIterState;
static gboolean
tf_value_pairs_prepare(LogTemplateFunction *self, gpointer s, LogTemplate *parent,
gint argc, gchar *argv[],
GError **error)
{
TFValuePairsState *state = (TFValuePairsState *)s;
if (strcmp(argv[0], "values") == 0)
state->result_type = TFVP_VALUES;
else if(strcmp(argv[0], "names") == 0)
state->result_type = TFVP_NAMES;
else
g_assert_not_reached();
state->vp = value_pairs_new_from_cmdline (parent->cfg, &argc, &argv, NULL, NULL, error);
return state->vp != NULL;
}
static gboolean
tf_value_pairs_foreach(const gchar *name,
LogMessageValueType type,
const gchar *value, gsize value_len,
gpointer user_data)
{
TFValuePairsIterState *iter_state = (TFValuePairsIterState *) user_data;
_append_comma_between_list_elements_if_needed(iter_state->result, iter_state->initial_len);
switch (iter_state->result_type)
{
case TFVP_VALUES:
str_repr_encode_append(iter_state->result, value, value_len, ",");
break;
case TFVP_NAMES:
str_repr_encode_append(iter_state->result, name, -1, ",");
break;
default:
g_assert_not_reached();
}
return FALSE;
}
static void
tf_value_pairs_call(LogTemplateFunction *self, gpointer s,
const LogTemplateInvokeArgs *args, GString *result, LogMessageValueType *type)
{
TFValuePairsState *state = (TFValuePairsState *)s;
TFValuePairsIterState iter_state =
{
.result = result,
.initial_len = result->len,
.result_type = state->result_type,
};
*type = LM_VT_LIST;
value_pairs_foreach(state->vp,
tf_value_pairs_foreach,
args->messages[args->num_messages-1],
args->options, &iter_state);
}
static void
tf_value_pairs_free_state(gpointer s)
{
TFValuePairsState *state = (TFValuePairsState *)s;
value_pairs_unref(state->vp);
tf_simple_func_free_state(&state->super);
}
TEMPLATE_FUNCTION(TFValuePairsState, tf_value_pairs, tf_value_pairs_prepare, NULL, tf_value_pairs_call,
tf_value_pairs_free_state, NULL);
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