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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <ostp/session.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <pthread.h>
#include <termios.h>
// #define CENTRAL_SERVER "127.0.0.1"
#define CENTRAL_SERVER "149.248.6.149"
static struct ostp_session s;
static pthread_t td;
static volatile int got_thread = 0;
static char input[512];
static size_t input_i = 0;
static struct termios orig_termios;
static void
enable_raw_mode(void)
{
struct termios raw;
tcgetattr(STDIN_FILENO, &orig_termios);
raw = orig_termios;
raw.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
raw.c_lflag &= ~(ECHO | ICANON | ISIG);
raw.c_cflag |= (CS8);
}
static void
disable_raw_mode(void)
{
tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}
static void *
recv_td(void *args)
{
char buf[4096];
got_thread = 1;
while (1) {
if (session_recv(buf, sizeof(buf) - 1, &s) < 0) {
printf("session_recv() failure\n");
return NULL;
}
printf("\n\033[1F\033[2K%s\n>> %s", buf, input);
fflush(stdout);
}
}
static void
sighandle(int dmmy)
{
printf("Cleaning up... goodbye!\n");
if (got_thread) {
pthread_cancel(td);
}
session_close(&s);
exit(0);
}
int
main(int argc, char **argv)
{
int error;
char c, send_buf[2048];
size_t len;
tcgetattr(STDIN_FILENO, &orig_termios);
setbuf(stdin, NULL);
setbuf(stdout, NULL);
signal(SIGINT, sighandle);
if ((error = session_new(CENTRAL_SERVER, &s)) < 0) {
printf("Failed to create new session\n");
return error;
}
error = pthread_create(&td, NULL, recv_td, NULL);
if (error != 0) {
session_close(&s);
return error;
}
atexit(disable_raw_mode);
enable_raw_mode();
while (1) {
printf(">> ");
while (read(STDIN_FILENO, &c, 1)) {
if (c == 0x7F && input_i == 0) {
continue;
} else if (c == 0x7F && input_i > 0) {
input[input_i--] = '\0';
printf("\b ", input_i);
continue;
}
/* Stop reading if newline */
if (c == '\n') {
input_i = 0;
printf("\n");
break;
}
if (input_i >= sizeof(input)) {
continue;
}
input[input_i++] = c;
input[input_i] = '\0';
printf("%c", c);
}
input[strcspn(input, "\n")] = '\0';
snprintf(send_buf, sizeof(send_buf), "%s: %s", s.username, input);
input[0] = '\0';
session_send(send_buf, strlen(send_buf) + 1, &s);
}
__builtin_unreachable();
}
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