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/*
* Copyright (c) 2002-2013 Balabit
* Copyright (c) 1998-2013 Balázs Scheidler
* Copyright (c) 2022 Balazs Scheidler <bazsi77@gmail.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-set-tag.h"
#include "template/templates.h"
#include "scratch-buffers.h"
/* LogRewriteSetTag
*
* This class implements the "set-tag" expression in a rewrite rule.
*/
typedef struct _LogRewriteSetTag LogRewriteSetTag;
struct _LogRewriteSetTag
{
LogRewrite super;
LogTagId tag_id;
gboolean value;
LogTemplate *tag_template;
};
static void
_set_tag(LogRewriteSetTag *self, LogMessage *msg)
{
if (self->tag_id != LOG_TAGS_UNDEF)
{
log_msg_set_tag_by_id_onoff(msg, self->tag_id, self->value);
return;
}
GString *result = scratch_buffers_alloc();
log_template_format(self->tag_template, msg, &DEFAULT_TEMPLATE_EVAL_OPTIONS, result);
LogTagId tag_id = log_tags_get_by_name(result->str);
log_msg_set_tag_by_id_onoff(msg, tag_id, self->value);
}
static void
_process(LogRewrite *s, LogMessage **pmsg, const LogPathOptions *path_options)
{
LogRewriteSetTag *self = (LogRewriteSetTag *) s;
log_msg_make_writable(pmsg, path_options);
_set_tag(self, *pmsg);
}
static LogPipe *
_clone(LogPipe *s)
{
LogRewriteSetTag *self = (LogRewriteSetTag *) s;
LogRewriteSetTag *cloned;
cloned = (LogRewriteSetTag *) log_rewrite_set_tag_new(self->tag_template, self->value, self->super.super.cfg);
log_rewrite_clone_method(&cloned->super, &self->super);
return &cloned->super.super;
}
static void
_free(LogPipe *s)
{
LogRewriteSetTag *self = (LogRewriteSetTag *) s;
log_template_unref(self->tag_template);
log_rewrite_free_method(s);
}
LogRewrite *
log_rewrite_set_tag_new(LogTemplate *tag_template, gboolean value, GlobalConfig *cfg)
{
LogRewriteSetTag *self = g_new0(LogRewriteSetTag, 1);
log_rewrite_init_instance(&self->super, cfg);
self->super.super.clone = _clone;
self->super.super.free_fn = _free;
self->super.process = _process;
self->value = value;
self->tag_template = log_template_ref(tag_template);
if (log_template_is_literal_string(tag_template))
{
const gchar *tag_name = log_template_get_literal_value(tag_template, NULL);
self->tag_id = log_tags_get_by_name(tag_name);
}
else
{
self->tag_id = LOG_TAGS_UNDEF;
}
return &self->super;
}
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