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/*
* Copyright 2023 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 "libcryptobox/cryptobox.h"
#include "unix-std.h"
#include "logger_private.h"
#define CONSOLE_LOG_QUARK g_quark_from_static_string("console_logger")
static const char lf_chr = '\n';
struct rspamd_console_logger_priv {
int fd;
int crit_fd;
};
/* Copy & paste :( */
static inline void
log_time(double now, rspamd_logger_t *rspamd_log, char *timebuf,
size_t len)
{
time_t sec = (time_t) now;
gsize r;
struct tm tms;
rspamd_localtime(sec, &tms);
r = strftime(timebuf, len, "%F %H:%M:%S", &tms);
if (rspamd_log->flags & RSPAMD_LOG_FLAG_USEC) {
char usec_buf[16];
rspamd_snprintf(usec_buf, sizeof(usec_buf), "%.5f",
now - (double) sec);
rspamd_snprintf(timebuf + r, len - r,
"%s", usec_buf + 1);
}
}
void *
rspamd_log_console_init(rspamd_logger_t *logger, struct rspamd_config *cfg,
uid_t uid, gid_t gid, GError **err)
{
struct rspamd_console_logger_priv *priv;
priv = g_malloc0(sizeof(*priv));
if (logger->flags & RSPAMD_LOG_FLAG_RSPAMADM) {
priv->fd = dup(STDOUT_FILENO);
priv->crit_fd = dup(STDERR_FILENO);
}
else {
priv->fd = dup(STDERR_FILENO);
priv->crit_fd = priv->fd;
}
if (priv->fd == -1) {
g_set_error(err, CONSOLE_LOG_QUARK, errno,
"open_log: cannot dup console fd: %s\n",
strerror(errno));
rspamd_log_console_dtor(logger, priv);
return NULL;
}
if (!isatty(priv->fd)) {
if (logger->flags & RSPAMD_LOG_FLAG_COLOR) {
/* Disable colors for not a tty */
logger->flags &= ~RSPAMD_LOG_FLAG_COLOR;
}
}
return priv;
}
void *
rspamd_log_console_reload(rspamd_logger_t *logger, struct rspamd_config *cfg,
gpointer arg, uid_t uid, gid_t gid, GError **err)
{
struct rspamd_console_logger_priv *npriv;
npriv = rspamd_log_console_init(logger, cfg, uid, gid, err);
if (npriv) {
/* Close old */
rspamd_log_console_dtor(logger, arg);
}
return npriv;
}
void rspamd_log_console_dtor(rspamd_logger_t *logger, gpointer arg)
{
struct rspamd_console_logger_priv *priv = (struct rspamd_console_logger_priv *) arg;
if (priv->fd != -1) {
if (priv->fd != priv->crit_fd) {
/* Two different FD case */
if (close(priv->crit_fd) == -1) {
rspamd_fprintf(stderr, "cannot close log crit_fd %d: %s\n",
priv->crit_fd, strerror(errno));
}
}
if (close(priv->fd) == -1) {
rspamd_fprintf(stderr, "cannot close log fd %d: %s\n",
priv->fd, strerror(errno));
}
/* Avoid the next if to be executed as crit_fd is equal to fd */
priv->crit_fd = -1;
}
if (priv->crit_fd != -1) {
if (close(priv->crit_fd) == -1) {
rspamd_fprintf(stderr, "cannot close log crit_fd %d: %s\n",
priv->crit_fd, strerror(errno));
}
}
g_free(priv);
}
bool rspamd_log_console_log(const char *module, const char *id,
const char *function,
int level_flags,
const char *message,
gsize mlen,
rspamd_logger_t *rspamd_log,
gpointer arg)
{
struct rspamd_console_logger_priv *priv = (struct rspamd_console_logger_priv *) arg;
int fd, r;
double now;
if (level_flags & G_LOG_LEVEL_CRITICAL) {
fd = priv->crit_fd;
}
else {
/* Use stderr if we are in rspamadm mode and severity is more than WARNING */
if ((rspamd_log->flags & RSPAMD_LOG_FLAG_RSPAMADM) && (level_flags & G_LOG_LEVEL_WARNING)) {
fd = priv->crit_fd;
}
else {
fd = priv->fd;
}
}
#ifndef DISABLE_PTHREAD_MUTEX
if (rspamd_log->mtx) {
rspamd_mempool_lock_mutex(rspamd_log->mtx);
}
else {
rspamd_file_lock(fd, FALSE);
}
#else
rspamd_file_lock(fd, FALSE);
#endif
now = rspamd_get_calendar_ticks();
struct rspamd_logger_iov_ctx iov_ctx;
memset(&iov_ctx, 0, sizeof(iov_ctx));
rspamd_log_fill_iov(&iov_ctx, now, module, id,
function, level_flags, message,
mlen, rspamd_log);
again:
r = writev(fd, iov_ctx.iov, iov_ctx.niov);
if (r == -1) {
if (errno == EAGAIN || errno == EINTR) {
goto again;
}
if (rspamd_log->mtx) {
rspamd_mempool_unlock_mutex(rspamd_log->mtx);
}
else {
rspamd_file_unlock(fd, FALSE);
}
rspamd_log_iov_free(&iov_ctx);
return false;
}
if (rspamd_log->mtx) {
rspamd_mempool_unlock_mutex(rspamd_log->mtx);
}
else {
rspamd_file_unlock(fd, FALSE);
}
rspamd_log_iov_free(&iov_ctx);
return true;
}
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