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/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, 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, see <https://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7:
*
* If you modify this Program, or any covered work, by linking or
* combining it with LibreSSL (or a modified version of that library),
* containing parts covered by the terms of the OpenSSL License and the
* original SSLeay license, the licensors of this Program grant you
* additional permission to convey the resulting work. Corresponding
* Source for a non-source form of such a combination shall include the
* source code for the parts of LibreSSL used as well as that of the
* covered work.
*/
#include <assert.h>
#include <err.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <time.h>
#include "chat.h"
bool logEnable;
static struct {
int year;
int month;
int day;
FILE *file;
} logs[IDCap];
static FILE *logFile(uint id, const struct tm *tm) {
if (
logs[id].file &&
logs[id].year == tm->tm_year &&
logs[id].month == tm->tm_mon &&
logs[id].day == tm->tm_mday
) return logs[id].file;
if (logs[id].file) {
int error = fclose(logs[id].file);
if (error) err(EX_IOERR, "%s", idNames[id]);
}
logs[id].year = tm->tm_year;
logs[id].month = tm->tm_mon;
logs[id].day = tm->tm_mday;
char path[PATH_MAX] = "log";
size_t len = strlen(path);
dataMkdir("");
dataMkdir(path);
path[len++] = '/';
for (const char *ch = network.name; *ch; ++ch) {
path[len++] = (*ch == '/' ? '_' : *ch);
}
path[len] = '\0';
dataMkdir(path);
path[len++] = '/';
for (const char *ch = idNames[id]; *ch; ++ch) {
path[len++] = (*ch == '/' ? '_' : *ch);
}
path[len] = '\0';
dataMkdir(path);
strftime(&path[len], sizeof(path) - len, "/%F.log", tm);
logs[id].file = dataOpen(path, "a");
if (!logs[id].file) exit(EX_CANTCREAT);
setlinebuf(logs[id].file);
return logs[id].file;
}
void logClose(void) {
if (!logEnable) return;
for (uint id = 0; id < IDCap; ++id) {
if (!logs[id].file) continue;
int error = fclose(logs[id].file);
if (error) err(EX_IOERR, "%s", idNames[id]);
}
}
void logFormat(uint id, const time_t *src, const char *format, ...) {
if (!logEnable) return;
time_t ts = (src ? *src : time(NULL));
struct tm *tm = localtime(&ts);
if (!tm) err(EX_OSERR, "localtime");
FILE *file = logFile(id, tm);
char buf[sizeof("0000-00-00T00:00:00+0000")];
strftime(buf, sizeof(buf), "%FT%T%z", tm);
fprintf(file, "[%s] ", buf);
if (ferror(file)) err(EX_IOERR, "%s", idNames[id]);
va_list ap;
va_start(ap, format);
vfprintf(file, format, ap);
va_end(ap);
if (ferror(file)) err(EX_IOERR, "%s", idNames[id]);
fprintf(file, "\n");
if (ferror(file)) err(EX_IOERR, "%s", idNames[id]);
}
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