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/*-
* Copyright 2020 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "logger.h"
#include "libserver/cfg_file.h"
#include "logger_private.h"
#define SYSLOG_LOG_QUARK g_quark_from_static_string("syslog_logger")
struct rspamd_syslog_logger_priv {
gint log_facility;
};
#ifdef HAVE_SYSLOG_H
#include <syslog.h>
void *
rspamd_log_syslog_init(rspamd_logger_t *logger, struct rspamd_config *cfg,
uid_t uid, gid_t gid, GError **err)
{
struct rspamd_syslog_logger_priv *priv;
if (!cfg) {
g_set_error(err, SYSLOG_LOG_QUARK, EINVAL,
"no log config specified");
return NULL;
}
priv = g_malloc0(sizeof(*priv));
priv->log_facility = cfg->log_facility;
openlog("rspamd", LOG_NDELAY | LOG_PID, priv->log_facility);
return priv;
}
void rspamd_log_syslog_dtor(rspamd_logger_t *logger, gpointer arg)
{
struct rspamd_syslog_logger_priv *priv = (struct rspamd_syslog_logger_priv *) arg;
closelog();
g_free(priv);
}
bool rspamd_log_syslog_log(const gchar *module, const gchar *id,
const gchar *function,
gint level_flags,
const gchar *message,
gsize mlen,
rspamd_logger_t *rspamd_log,
gpointer arg)
{
static const struct {
GLogLevelFlags glib_level;
gint syslog_level;
} levels_match[] = {
{G_LOG_LEVEL_DEBUG, LOG_DEBUG},
{G_LOG_LEVEL_INFO, LOG_INFO},
{G_LOG_LEVEL_WARNING, LOG_WARNING},
{G_LOG_LEVEL_CRITICAL, LOG_ERR}};
unsigned i;
gint syslog_level;
if (!(level_flags & RSPAMD_LOG_FORCED) && !rspamd_log->enabled) {
return false;
}
/* Detect level */
syslog_level = LOG_DEBUG;
for (i = 0; i < G_N_ELEMENTS(levels_match); i++) {
if (level_flags & levels_match[i].glib_level) {
syslog_level = levels_match[i].syslog_level;
break;
}
}
syslog(syslog_level, "<%.*s>; %s; %s: %.*s",
RSPAMD_LOG_ID_LEN, id != NULL ? id : "",
module != NULL ? module : "",
function != NULL ? function : "",
(gint) mlen, message);
return true;
}
#else
void *
rspamd_log_syslog_init(rspamd_logger_t *logger, struct rspamd_config *cfg,
uid_t uid, gid_t gid, GError **err)
{
g_set_error(err, SYSLOG_LOG_QUARK, EINVAL, "syslog support is not compiled in");
return NULL;
}
bool rspamd_log_syslog_log(const gchar *module, const gchar *id,
const gchar *function,
gint level_flags,
const gchar *message,
gsize mlen,
rspamd_logger_t *rspamd_log,
gpointer arg)
{
return false;
}
void rspamd_log_syslog_dtor(rspamd_logger_t *logger, gpointer arg)
{
/* Left blank intentionally */
}
#endif
void *
rspamd_log_syslog_reload(rspamd_logger_t *logger, struct rspamd_config *cfg,
gpointer arg, uid_t uid, gid_t gid, GError **err)
{
struct rspamd_syslog_logger_priv *npriv;
npriv = rspamd_log_syslog_init(logger, cfg, uid, gid, err);
if (npriv) {
/* Close old */
rspamd_log_syslog_dtor(logger, arg);
}
return npriv;
}
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