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/*
* Copyright (c) 2014 Balabit
* Copyright (c) 2014 Viktor Juhász <viktor.juhasz@balabit.com>
* Copyright (c) 2014 Viktor Tusa <viktor.tusa@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 "rewrite-groupset.h"
typedef struct _LogRewriteGroupSetCallbackData
{
LogMessage *msg;
LogTemplate *template;
} LogRewriteGroupSetCallbackData;
/* TODO escape '\0' when passing down the value */
static gboolean
log_rewrite_groupset_foreach_func(const gchar *name, TypeHint type,
const gchar *value, gsize value_len,
gpointer user_data)
{
LogRewriteGroupSetCallbackData *callback_data = (LogRewriteGroupSetCallbackData*) user_data;
LogMessage *msg = callback_data->msg;
LogTemplate *template = callback_data->template;
GString *result;
result = g_string_sized_new(64);
log_template_format(template, msg, NULL, LTZ_LOCAL, 0, value, result);
NVHandle handle = log_msg_get_value_handle(name);
log_msg_set_value(msg, handle, result->str, result->len);
g_string_free(result, TRUE);
return FALSE;
}
static void
log_rewrite_groupset_process(LogRewrite *s, LogMessage **msg, const LogPathOptions *path_options)
{
LogRewriteGroupSet *self = (LogRewriteGroupSet *) s;
LogRewriteGroupSetCallbackData userdata;
userdata.msg = *msg;
userdata.template = self->replacement;
value_pairs_foreach(self->query, log_rewrite_groupset_foreach_func, *msg, 0, LTZ_LOCAL, NULL, &userdata);
}
static void
__free_field(gpointer field, gpointer user_data)
{
g_free(field);
}
void
log_rewrite_groupset_add_fields(LogRewrite *rewrite, GList *fields)
{
LogRewriteGroupSet *self = (LogRewriteGroupSet *) rewrite;
GList *head;
for (head = fields; head; head = head->next)
{
value_pairs_add_glob_pattern(self->query, head->data, TRUE);
}
g_list_foreach(fields, __free_field, NULL);
g_list_free(fields);
}
static LogPipe *
log_rewrite_groupset_clone(LogPipe *s)
{
LogRewriteGroupSet *self = (LogRewriteGroupSet *) s;
LogRewriteGroupSet *cloned = (LogRewriteGroupSet *)log_rewrite_groupset_new(self->replacement, log_pipe_get_config(&self->super.super) );
value_pairs_unref(cloned->query);
cloned->query = value_pairs_ref(self->query);
if (self->super.condition)
cloned->super.condition = filter_expr_ref(self->super.condition);
return &cloned->super.super;
};
void
log_rewrite_groupset_free(LogPipe *s)
{
LogRewriteGroupSet *self = (LogRewriteGroupSet *) s;
value_pairs_unref(self->query);
log_template_unref(self->replacement);
log_rewrite_free_method(s);
}
LogRewrite *
log_rewrite_groupset_new(LogTemplate *template, GlobalConfig *cfg)
{
LogRewriteGroupSet *self = g_new0(LogRewriteGroupSet, 1);
log_rewrite_init_instance(&self->super, cfg);
self->super.super.free_fn = log_rewrite_groupset_free;
self->super.process = log_rewrite_groupset_process;
self->super.super.clone = log_rewrite_groupset_clone;
self->replacement = log_template_ref(template);
self->query = value_pairs_new();
return &self->super;
}
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