713 lines
14 KiB
C
713 lines
14 KiB
C
#include <stdio.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/fcntl.h>
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#include <signal.h>
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#include <sys/utsname.h>
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#include <sys/time.h>
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#include <stdarg.h>
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#include "bbs.h"
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#include "lua/lua.h"
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#include "lua/lualib.h"
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#include "lua/lauxlib.h"
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int mynode;
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struct bbs_config conf;
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struct user_record *gUser;
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int gSocket;
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int sshBBS;
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int usertimeout;
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int timeoutpaused;
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char *ipaddress;
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void dolog(char *fmt, ...) {
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char buffer[512];
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struct tm time_now;
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time_t timen;
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FILE *logfptr;
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if (conf.log_path == NULL) return;
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timen = time(NULL);
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localtime_r(&timen, &time_now);
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snprintf(buffer, 512, "%s/%04d%02d%02d.log", conf.log_path, time_now.tm_year + 1900, time_now.tm_mon + 1, time_now.tm_mday);
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logfptr = fopen(buffer, "a");
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if (!logfptr) {
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dolog("Error opening log file!");
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return;
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}
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, 512, fmt, ap);
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va_end(ap);
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fprintf(logfptr, "%02d:%02d:%02d [%s] %s\n", time_now.tm_hour, time_now.tm_min, time_now.tm_sec, ipaddress, buffer);
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fclose(logfptr);
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}
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struct fido_addr *parse_fido_addr(const char *str) {
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struct fido_addr *ret = (struct fido_addr *)malloc(sizeof(struct fido_addr));
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int c;
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int state = 0;
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ret->zone = 0;
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ret->net = 0;
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ret->node = 0;
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ret->point = 0;
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for (c=0;c<strlen(str);c++) {
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switch(str[c]) {
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case ':':
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state = 1;
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break;
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case '/':
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state = 2;
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break;
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case '.':
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state = 3;
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break;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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{
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switch (state) {
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case 0:
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ret->zone = ret->zone * 10 + (str[c] - '0');
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break;
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case 1:
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ret->net = ret->net * 10 + (str[c] - '0');
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break;
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case 2:
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ret->node = ret->node * 10 + (str[c] - '0');
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break;
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case 3:
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ret->point = ret->point * 10 + (str[c] - '0');
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break;
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}
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}
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break;
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default:
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free(ret);
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return NULL;
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}
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}
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return ret;
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}
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void timer_handler(int signum) {
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if (signum == SIGALRM) {
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if (gUser != NULL) {
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gUser->timeleft--;
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if (gUser->timeleft <= 0) {
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s_printf("\r\n\r\nSorry, you're out of time today..\r\n");
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disconnect("Out of Time");
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}
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}
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if (timeoutpaused == 0) {
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usertimeout--;
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}
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if (usertimeout <= 0) {
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s_printf("\r\n\r\nTimeout waiting for input..\r\n");
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disconnect("Timeout");
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}
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}
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}
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void s_printf(char *fmt, ...) {
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char buffer[512];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, 512, fmt, ap);
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va_end(ap);
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s_putstring(buffer);
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}
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void s_putchar(char c) {
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if (sshBBS) {
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putchar(c);
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} else {
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write(gSocket, &c, 1);
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}
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}
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void s_putstring(char *c) {
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if (sshBBS) {
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printf("%s", c);
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} else {
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write(gSocket, c, strlen(c));
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}
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}
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void s_displayansi_p(char *file) {
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FILE *fptr;
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char c;
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fptr = fopen(file, "r");
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if (!fptr) {
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return;
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}
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c = fgetc(fptr);
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while (!feof(fptr) && c != 0x1a) {
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s_putchar(c);
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c = fgetc(fptr);
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}
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fclose(fptr);
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}
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void s_displayansi(char *file) {
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FILE *fptr;
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char c;
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char buffer[256];
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sprintf(buffer, "%s/%s.ans", conf.ansi_path, file);
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fptr = fopen(buffer, "r");
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if (!fptr) {
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return;
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}
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c = fgetc(fptr);
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while (!feof(fptr) && c != 0x1a) {
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s_putchar(c);
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c = fgetc(fptr);
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}
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fclose(fptr);
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}
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char s_getchar() {
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unsigned char c;
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int len;
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do {
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if (sshBBS) {
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len = read(stdin, &c, 1);
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} else {
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len = read(gSocket, &c, 1);
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}
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if (len == 0) {
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disconnect("Socket Closed");
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}
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if (!sshBBS) {
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while (c == 255) {
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len = read(gSocket, &c, 1);
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if (len == 0) {
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disconnect("Socket Closed");
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} else if (c == 255) {
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usertimeout = 10;
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return c;
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}
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len = read(gSocket, &c, 1);
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if (len == 0) {
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disconnect("Socket Closed");
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}
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len = read(gSocket, &c, 1);
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if (len == 0) {
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disconnect("Socket Closed");
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}
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}
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}
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if (c == '\r') {
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if (len == 0) {
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disconnect("Socket Closed");
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}
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}
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} while (c == '\n');
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usertimeout = 10;
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return (char)c;
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}
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char s_getc() {
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char c = s_getchar();
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s_putchar(c);
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return (char)c;
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}
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void s_readstring(char *buffer, int max) {
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int i;
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char c;
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memset(buffer, 0, max);
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for (i=0;i<max;i++) {
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c = s_getchar();
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if ((c == '\b' || c == 127) && i > 0) {
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buffer[i-1] = '\0';
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i -= 2;
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s_printf("\e[D \e[D");
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continue;
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} else if (c == '\b' || c == 127) {
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i -= 1;
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continue;
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}
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if (c == '\n' || c == '\r') {
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return;
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}
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s_putchar(c);
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buffer[i] = c;
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buffer[i+1] = '\0';
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}
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}
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void s_readpass(char *buffer, int max) {
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int i;
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char c;
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for (i=0;i<max;i++) {
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c = s_getchar();
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if ((c == '\b' || c == 127) && i > 0) {
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buffer[i-1] = '\0';
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i-=2;
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s_printf("\e[D \e[D");
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continue;
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} else if (c == '\b' || c == 127) {
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i -= 1;
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continue;
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}
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if (c == '\n' || c == '\r') {
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return;
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}
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s_putchar('*');
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buffer[i] = c;
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buffer[i+1] = '\0';
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}
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}
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void disconnect(char *calledby) {
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char buffer[256];
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if (gUser != NULL) {
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save_user(gUser);
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}
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dolog("Node %d disconnected (%s)", mynode, calledby);
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sprintf(buffer, "%s/nodeinuse.%d", conf.bbs_path, mynode);
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remove(buffer);
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if (!sshBBS) {
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close(gSocket);
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}
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exit(0);
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}
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void record_last10_callers(struct user_record *user) {
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struct last10_callers new_entry;
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struct last10_callers callers[10];
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int i,j;
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FILE *fptr = fopen("last10.dat", "rb");
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if (fptr != NULL) {
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for (i=0;i<10;i++) {
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if (fread(&callers[i], sizeof(struct last10_callers), 1, fptr) < 1) {
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break;
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}
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}
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fclose(fptr);
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} else {
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i = 0;
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}
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if (strcasecmp(conf.sysop_name, user->loginname) != 0 ) {
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memset(&new_entry, 0, sizeof(struct last10_callers));
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strcpy(new_entry.name, user->loginname);
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strcpy(new_entry.location, user->location);
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new_entry.time = time(NULL);
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if (i == 10) {
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j = 1;
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} else {
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j = 0;
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}
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fptr = fopen("last10.dat", "wb");
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for (;j<i;j++) {
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fwrite(&callers[j], sizeof(struct last10_callers), 1, fptr);
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}
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fwrite(&new_entry, sizeof(struct last10_callers), 1, fptr);
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fclose(fptr);
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}
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}
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void display_last10_callers(struct user_record *user) {
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struct last10_callers callers[10];
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int i,z;
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struct tm l10_time;
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FILE *fptr = fopen("last10.dat", "rb");
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s_printf("\r\n\e[1;37mLast 10 callers:\r\n");
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s_printf("\e[1;30m-------------------------------------------------------------------------------\r\n");
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if (fptr != NULL) {
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for (i=0;i<10;i++) {
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if (fread(&callers[i], sizeof(struct last10_callers), 1, fptr) < 1) {
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break;
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}
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}
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fclose(fptr);
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} else {
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i = 0;
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}
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for (z=0;z<i;z++) {
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localtime_r(&callers[z].time, &l10_time);
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s_printf("\e[1;37m%-16s \e[1;36m%-32s \e[1;32m%02d:%02d %02d-%02d-%02d\e[0m\r\n", callers[z].name, callers[z].location, l10_time.tm_hour, l10_time.tm_min, l10_time.tm_mday, l10_time.tm_mon + 1, l10_time.tm_year - 100);
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}
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s_printf("\e[1;30m-------------------------------------------------------------------------------\e[0m\r\n");
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s_printf("Press any key to continue...\r\n");
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s_getc();
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}
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void display_info() {
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struct utsname name;
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uname(&name);
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s_printf("\r\n\r\n\e[1;37mSystem Information\r\n");
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s_printf("\e[1;30m----------------------------------------------\r\n");
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s_printf("\e[1;32mBBS Name : \e[1;37m%s\r\n", conf.bbs_name);
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s_printf("\e[1;32mSysOp Name : \e[1;37m%s\r\n", conf.sysop_name);
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s_printf("\e[1;32mNode : \e[1;37m%d\r\n", mynode);
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s_printf("\e[1;32mBBS Version : \e[1;37mMagicka %d.%d (%s)\r\n", VERSION_MAJOR, VERSION_MINOR, VERSION_STR);
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s_printf("\e[1;32mSystem : \e[1;37m%s (%s)\r\n", name.sysname, name.machine);
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s_printf("\e[1;30m----------------------------------------------\e[0m\r\n");
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s_printf("Press any key to continue...\r\n");
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s_getc();
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}
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void automessage_write(struct user_record *user) {
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FILE *fptr;
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char automsg[450];
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char buffer[76];
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int i;
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struct tm timenow;
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time_t timen;
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memset(automsg, 0, 450);
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memset(buffer, 0, 76);
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if (user->sec_level >= conf.automsgwritelvl) {
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timen = time(NULL);
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localtime_r(&timen, &timenow);
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sprintf(automsg, "Automessage Posted by %s @ %s", user->loginname, asctime(&timenow));
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automsg[strlen(automsg) - 1] = '\r';
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automsg[strlen(automsg)] = '\n';
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s_printf("\r\nEnter your message (4 lines):\r\n");
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for (i=0;i<4;i++) {
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s_printf("\r\n%d: ", i);
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s_readstring(buffer, 75);
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strcat(automsg, buffer);
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strcat(automsg, "\r\n");
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}
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fptr = fopen("automessage.txt", "w");
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if (fptr) {
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fwrite(automsg, strlen(automsg), 1, fptr);
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fclose(fptr);
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} else {
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dolog("Unable to open automessage.txt for writing");
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}
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}
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}
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void automessage_display() {
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struct stat s;
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FILE *fptr;
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char buffer[90];
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int i;
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s_printf("\r\n\r\n");
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if (stat("automessage.txt", &s) == 0) {
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fptr = fopen("automessage.txt", "r");
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if (fptr) {
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for (i=0;i<5;i++) {
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memset(buffer, 0, 90);
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fgets(buffer, 88, fptr);
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buffer[strlen(buffer) - 1] = '\r';
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buffer[strlen(buffer)] = '\n';
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s_printf(buffer);
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}
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fclose(fptr);
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} else {
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dolog("Error opening automessage.txt");
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}
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} else {
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s_printf("No automessage!\r\n");
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}
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s_printf("\e[0mPress any key to continue...\r\n");
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s_getc();
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}
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void runbbs_real(int socket, char *ip, int ssh) {
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char buffer[256];
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char password[17];
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struct stat s;
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FILE *nodefile;
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int i;
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char iac_echo[] = {255, 251, 1, '\0'};
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char iac_sga[] = {255, 251, 3, '\0'};
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struct user_record *user;
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struct tm thetime;
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struct tm oldtime;
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time_t now;
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struct itimerval itime;
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struct sigaction sa;
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lua_State *L;
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int do_internal_login = 0;
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ipaddress = ip;
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if (!ssh) {
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write(socket, iac_echo, 3);
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write(socket, iac_sga, 3);
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gUser = NULL;
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sshBBS = 0;
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} else {
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sshBBS = 1;
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}
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gSocket = socket;
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s_printf("Magicka BBS v%d.%d (%s), Loading...\r\n", VERSION_MAJOR, VERSION_MINOR, VERSION_STR);
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// find out which node we are
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mynode = 0;
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for (i=1;i<=conf.nodes;i++) {
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sprintf(buffer, "%s/nodeinuse.%d", conf.bbs_path, i);
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if (stat(buffer, &s) != 0) {
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mynode = i;
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nodefile = fopen(buffer, "w");
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if (!nodefile) {
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dolog("Error opening nodefile!");
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close(socket);
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exit(1);
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}
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fputs("UNKNOWN", nodefile);
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fclose(nodefile);
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break;
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}
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}
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if (mynode == 0) {
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s_printf("Sorry, all nodes are in use. Please try later\r\n");
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if (!ssh) {
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close(socket);
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}
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exit(1);
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}
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usertimeout = 10;
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timeoutpaused = 0;
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memset (&sa, 0, sizeof (sa));
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sa.sa_handler = &timer_handler;
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sa.sa_flags = SA_RESTART;
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sigaction (SIGALRM, &sa, 0);
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itime.it_interval.tv_sec = 60;
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itime.it_interval.tv_usec = 0;
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itime.it_value.tv_sec = 60;
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itime.it_value.tv_usec = 0;
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setitimer (ITIMER_REAL, &itime, 0);
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s_displayansi("issue");
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if (!ssh) {
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s_printf("\e[0mEnter your Login Name or NEW to create an account\r\n");
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s_printf("Login:> ");
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s_readstring(buffer, 25);
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if (strcasecmp(buffer, "new") == 0) {
|
|
user = new_user();
|
|
} else {
|
|
s_printf("\r\nPassword:> ");
|
|
s_readpass(password, 16);
|
|
user = check_user_pass(buffer, password);
|
|
if (user == NULL) {
|
|
s_printf("\r\nIncorrect Login.\r\n");
|
|
disconnect("Incorrect Login");
|
|
}
|
|
|
|
gUser = user;
|
|
|
|
for (i=1;i<=conf.nodes;i++) {
|
|
sprintf(buffer, "%s/nodeinuse.%d", conf.bbs_path, i);
|
|
if (stat(buffer, &s) == 0) {
|
|
nodefile = fopen(buffer, "r");
|
|
if (!nodefile) {
|
|
dolog("Error opening nodefile!");
|
|
disconnect("Error opening nodefile!");
|
|
}
|
|
fgets(buffer, 256, nodefile);
|
|
|
|
if (strcasecmp(user->loginname, buffer) == 0) {
|
|
fclose(nodefile);
|
|
s_printf("\r\nYou are already logged in.\r\n");
|
|
disconnect("Already Logged in");
|
|
}
|
|
fclose(nodefile);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (gUser != NULL) {
|
|
user = gUser;
|
|
s_printf("\e[0mWelcome back %s. Press enter to log in...\r\n", gUser->loginname);
|
|
s_getc();
|
|
for (i=1;i<=conf.nodes;i++) {
|
|
sprintf(buffer, "%s/nodeinuse.%d", conf.bbs_path, i);
|
|
if (stat(buffer, &s) == 0) {
|
|
nodefile = fopen(buffer, "r");
|
|
if (!nodefile) {
|
|
dolog("Error opening nodefile!");
|
|
disconnect("Error opening nodefile!");
|
|
}
|
|
fgets(buffer, 256, nodefile);
|
|
|
|
if (strcasecmp(user->loginname, buffer) == 0) {
|
|
fclose(nodefile);
|
|
s_printf("\r\nYou are already logged in.\r\n");
|
|
disconnect("Already Logged in");
|
|
}
|
|
fclose(nodefile);
|
|
}
|
|
}
|
|
} else {
|
|
gUser = new_user();
|
|
user = gUser;
|
|
}
|
|
}
|
|
sprintf(buffer, "%s/nodeinuse.%d", conf.bbs_path, mynode);
|
|
nodefile = fopen(buffer, "w");
|
|
if (!nodefile) {
|
|
dolog("Error opening nodefile!");
|
|
close(socket);
|
|
exit(1);
|
|
}
|
|
|
|
fputs(user->loginname, nodefile);
|
|
fclose(nodefile);
|
|
|
|
|
|
|
|
// do post-login
|
|
dolog("%s logged in, on node %d", user->loginname, mynode);
|
|
// check time left
|
|
now = time(NULL);
|
|
localtime_r(&now, &thetime);
|
|
localtime_r(&user->laston, &oldtime);
|
|
|
|
if (thetime.tm_mday != oldtime.tm_mday || thetime.tm_mon != oldtime.tm_mon || thetime.tm_year != oldtime.tm_year) {
|
|
user->timeleft = user->sec_info->timeperday;
|
|
user->laston = now;
|
|
save_user(user);
|
|
}
|
|
|
|
user->timeson++;
|
|
|
|
|
|
if (conf.script_path != NULL) {
|
|
sprintf(buffer, "%s/login_stanza.lua", conf.script_path);
|
|
if (stat(buffer, &s) == 0) {
|
|
L = luaL_newstate();
|
|
luaL_openlibs(L);
|
|
lua_push_cfunctions(L);
|
|
luaL_dofile(L, buffer);
|
|
lua_close(L);
|
|
do_internal_login = 0;
|
|
} else {
|
|
do_internal_login = 1;
|
|
}
|
|
} else {
|
|
do_internal_login = 1;
|
|
}
|
|
|
|
if (do_internal_login == 1) {
|
|
// bulletins
|
|
i = 0;
|
|
sprintf(buffer, "%s/bulletin%d.ans", conf.ansi_path, i);
|
|
|
|
while (stat(buffer, &s) == 0) {
|
|
sprintf(buffer, "bulletin%d", i);
|
|
s_displayansi(buffer);
|
|
s_printf("\e[0mPress any key to continue...\r\n");
|
|
s_getc();
|
|
i++;
|
|
sprintf(buffer, "%s/bulletin%d.ans", conf.ansi_path, i);
|
|
}
|
|
|
|
// external login cmd
|
|
|
|
// display info
|
|
display_info();
|
|
|
|
display_last10_callers(user);
|
|
|
|
// check email
|
|
i = mail_getemailcount(user);
|
|
if (i > 0) {
|
|
s_printf("\r\nYou have %d e-mail(s) in your inbox.\r\n", i);
|
|
} else {
|
|
s_printf("\r\nYou have no e-mail.\r\n");
|
|
}
|
|
|
|
mail_scan(user);
|
|
|
|
automessage_display();
|
|
}
|
|
record_last10_callers(user);
|
|
// main menu
|
|
main_menu(user);
|
|
|
|
s_displayansi("goodbye");
|
|
dolog("%s is logging out, on node %d", user->loginname, mynode);
|
|
disconnect("Log out");
|
|
}
|
|
|
|
void runbbs(int socket, char *ip) {
|
|
runbbs_real(socket, ip, 0);
|
|
}
|
|
|
|
void runbbs_ssh(char *ip) {
|
|
runbbs_real(-1, ip, 1);
|
|
}
|