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/*
* Copyright (c) 2019 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 "rewrite-set-timezone.h"
#include "scratch-buffers.h"
#include "timeutils/cache.h"
typedef struct _RewriteSetTimeZone RewriteSetTimeZone;
struct _RewriteSetTimeZone
{
LogRewrite super;
LogTemplate *zone_template;
gint stamp;
};
void
rewrite_set_time_zone_set_zone_template_ref(LogRewrite *s, LogTemplate *zone_template)
{
RewriteSetTimeZone *self = (RewriteSetTimeZone *) s;
log_template_unref(self->zone_template);
self->zone_template = zone_template;
}
void
rewrite_set_time_zone_set_time_stamp(LogRewrite *s, gint stamp)
{
RewriteSetTimeZone *self = (RewriteSetTimeZone *) s;
self->stamp = stamp;
}
static void
_process(LogRewrite *s, LogMessage **pmsg, const LogPathOptions *path_options)
{
RewriteSetTimeZone *self = (RewriteSetTimeZone *) s;
GString *result = scratch_buffers_alloc();
LogMessage *msg = *pmsg;
log_template_format(self->zone_template, *pmsg, &DEFAULT_TEMPLATE_EVAL_OPTIONS, result);
UnixTime stamp = msg->timestamps[self->stamp];
glong orig_gmtoff = stamp.ut_gmtoff;
TimeZoneInfo *tzinfo = cached_get_time_zone_info(result->str);
unix_time_set_timezone_with_tzinfo(&stamp, tzinfo);
if (stamp.ut_gmtoff != msg->timestamps[self->stamp].ut_gmtoff)
{
msg = log_msg_make_writable(pmsg, path_options);
msg->timestamps[self->stamp] = stamp;
}
msg_trace("set-timezone(): adjusting message timezone to a different value",
evt_tag_str("new_timezone", result->str),
evt_tag_long("orig_gmtoff", orig_gmtoff),
evt_tag_long("new_gmtoff", stamp.ut_gmtoff));
}
static LogPipe *
_clone(LogPipe *s)
{
RewriteSetTimeZone *self = (RewriteSetTimeZone *) s;
LogRewrite *cloned;
cloned = rewrite_set_time_zone_new(s->cfg);
log_rewrite_clone_method(cloned, &self->super);
rewrite_set_time_zone_set_zone_template_ref(cloned, log_template_ref(self->zone_template));
rewrite_set_time_zone_set_time_stamp(cloned, self->stamp);
return &cloned->super;
}
static void
_free(LogPipe *s)
{
RewriteSetTimeZone *self = (RewriteSetTimeZone *) s;
log_template_unref(self->zone_template);
log_rewrite_free_method(s);
}
LogRewrite *
rewrite_set_time_zone_new(GlobalConfig *cfg)
{
RewriteSetTimeZone *self = g_new0(RewriteSetTimeZone, 1);
log_rewrite_init_instance(&self->super, cfg);
self->super.super.free_fn = _free;
self->super.super.clone = _clone;
self->super.process = _process;
self->stamp = LM_TS_STAMP;
return &self->super;
}
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