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/* $Id$ */
#define _UTIL_C_
#include "bbs.h"
#define LOG_FILE (BBSHOME "/etc/mailog")
#ifdef HMM_USE_ANTI_SPAM
extern char *notitle[], *nofrom[], *nocont[];
#endif
extern userec_t xuser;
int
strip_ansi(char *buf, char *str, int mode)
{
register int ansi, count = 0;
for (ansi = 0; *str /* && *str != '\n' */ ; str++) {
if (*str == 27) {
if (mode) {
if (buf)
*buf++ = *str;
count++;
}
ansi = 1;
} else if (ansi && strchr("[;1234567890mfHABCDnsuJKc=n", *str)) {
if ((mode == NO_RELOAD && !strchr("c=n", *str)) ||
(mode == ONLY_COLOR && strchr("[;1234567890m", *str))) {
if (buf)
*buf++ = *str;
count++;
}
if (strchr("mHn ", *str))
ansi = 0;
} else {
ansi = 0;
if (buf)
*buf++ = *str;
count++;
}
}
if (buf)
*buf = '\0';
return count;
}
int mailalertuid(int tuid)
{
userinfo_t *uentp=NULL;
if(tuid>0 && (uentp = (userinfo_t *)search_ulist(tuid)) )
uentp->mailalert=1;
return 0;
}
void
mailog(msg)
char *msg;
{
FILE *fp;
if ((fp = fopen(LOG_FILE, "a")))
{
time_t now;
struct tm *p;
time(&now);
p = localtime(&now);
fprintf(fp, "%02d/%02d/%02d %02d:%02d:%02d <bbsmail> %s\n",
p->tm_year % 100, p->tm_mon + 1, p->tm_mday, p->tm_hour, p->tm_min, p->tm_sec,
msg);
fclose(fp);
}
}
#ifdef USE_ICONV
void str_decode_M3(unsigned char *str);
#endif
int mail2bbs(char *userid)
{
int uid, fd;
fileheader_t mymail;
char genbuf[512], title[512], sender[512], filename[512], *ip, *ptr;
time_t tmp_time;
struct stat st;
FILE *fout;
/* check if the userid is in our bbs now */
if( !(uid = getuser(userid)) ){
sprintf(genbuf, "BBS user <%s> not existed", userid);
puts(genbuf);
mailog(genbuf);
return -1;//EX_NOUSER;
}
if( xuser.userlevel & PERM_NOOUTMAIL )
return -1; //不接受站外信
sprintf(filename, BBSHOME "/home/%c/%s", userid[0], userid);
if( stat(filename, &st) == -1 ){
if( mkdir(filename, 0755) == -1 ){
printf("mail box create error %s \n", filename);
return -1;
}
}
else if( !(st.st_mode & S_IFDIR) ){
printf("mail box error\n");
return -1;
}
/* parse header */
while( fgets(genbuf, sizeof(genbuf), stdin) ){
if( genbuf[0] == '\n' )
break;
if( strncmp(genbuf, "Subject: ", 9) == 0 ){
strlcpy(title, genbuf + 9, sizeof(title));
#ifdef USE_ICONV
str_decode_M3(title);
#endif
continue;
}
if( strncmp(genbuf, "Content-Type:", 13) == 0 ){
if( strstr(genbuf, "multipart") && !strstr(genbuf, "report") )
return -1;
}
if( strncmp(genbuf, "From", 4) == 0 ){
if( (ip = strchr(genbuf, '<')) && (ptr = strrchr(ip, '>')) ){
*ptr = '\0';
if (ip[-1] == ' ')
ip[-1] = '\0';
ptr = (char *) strchr(genbuf, ' ');
if( ptr )
while (*ptr == ' ')
ptr++;
else
ptr = "unknown";
sprintf(sender, "%s (%s)", ip + 1, ptr);
}
else{
strtok(genbuf, " \t\n\r");
ptr = strtok(NULL, " \t\n\r");
if(ptr)
strlcpy(sender, ptr, sizeof(sender));
}
continue;
}
}
if( (ptr = strchr(sender, '\n')) )
*ptr = '\0';
if( (ptr = strchr(title, '\n')) )
*ptr = '\0';
if( strchr(sender, '@') == NULL ) /* 由 local host 寄信 */
strcat(sender, "@" MYHOSTNAME);
#ifdef HMM_USE_ANTI_SPAM
for (n = 0; notitle[n]; n++)
if (strstr(title, notitle[n]))
{
sprintf(genbuf, "Title <%s> not accepted", title);
puts(genbuf);
mailog(genbuf);
return -1;
}
for (n = 0; nofrom[n]; n++)
if (strstr(sender, nofrom[n]))
{
sprintf(genbuf, "From <%s> not accepted", sender);
puts(genbuf);
mailog(genbuf);
return -1;
}
#endif
if( (fd = stampfilefd(filename, &mymail)) == -1 ||
(fout = fdopen(fd, "wt")) == NULL )
return -1;
if (!title[0])
sprintf(title, "來自 %.64s", sender);
title[TTLEN] = 0;
time(&tmp_time);
fprintf(fout, "作者: %s\n標題: %s\n時間: %s\n",
sender, title, ctime(&tmp_time));
/* copy the stdin to the specified file */
while (fgets(genbuf, 255, stdin))
{
#ifdef HMM_USE_ANTI_SPAM
for (n = 0; nocont[n]; n++)
if (strstr(genbuf, nocont[n]))
{
fclose(fout);
unlink(filename);
sprintf(genbuf, "Content <%s> not accepted", nocont[n]);
puts(genbuf);
mailog(genbuf);
return -1;
}
#endif
fputs(genbuf, fout);
}
fclose(fout);
sprintf(genbuf, "%s => %s", sender, userid);
mailog(genbuf);
/* append the record to the MAIL control file */
strip_ansi(title, title, 0);
strlcpy(mymail.title, title, sizeof(mymail.title));
if (strtok(sender, " .@\t\n\r"))
strcat(sender, ".");
sender[IDLEN + 1] = '\0';
strlcpy(mymail.owner, sender, sizeof(mymail.owner));
sprintf(genbuf, BBSHOME "/home/%c/%s/.DIR", userid[0], userid);
mailalertuid(uid);
return append_record(genbuf, &mymail, sizeof(mymail));
}
int
main(int argc, char* argv[])
{
char receiver[512];
/* argv[1] is userid in bbs */
if (argc < 2){
printf("Usage:\t%s <bbs_uid>\n", argv[0]);
exit(-1);
}
(void) setgid(BBSGID);
(void) setuid(BBSUID);
attach_SHM();
if( passwd_init() )
return 0;
chdir(BBSHOME);
strlcpy(receiver, argv[1], sizeof(receiver));
strtok(receiver,".");
if (mail2bbs(receiver)){
/* eat mail queue */
while (fgets(receiver, sizeof(receiver), stdin))
;
}
return 0;
}
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