Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!dali.cs.montana.edu!caen!umich!sharkey!tygra!jp
From: jp@tygra.Michigan.COM (John Palmer)
Newsgroups: news.software.b
Subject: How to Exclude All Posts from a Site
Message-ID: <1991May11.045046.14148@tygra.Michigan.COM>
Date: 11 May 91 04:50:46 GMT
Organization: CAT-TALK Conferencing System, Detroit, MI
Lines: 133

I need to find a way to exclude all posts from a particular site from
even making it into my junk group let alone any other groups.

The: 

 sitea/siteb:groups,....

in "sys" wont't work because that excludes all articles that have been
through siteb, not just those that have come from siteb.  BNEWS had an
"excluded user" file.  I'm running CNEWS, March-25-1990. Does a newer
version have such a feature? I hate hacking relaynews any more than I've
already done, but have had to for the time being. Below is the modification
(including a new function that I wrote for "procart.c") to take care
of this one site. The name's hardwired into the function, as you can see.

John Palmer

/* This function, gets the name of the site from which the article came
 * from the Path: header. Didn't see anything like this in 
 * libcnews/string.c, so I wrote it myself. 
 */

/*
 * Return name of original site which sent this article
 *
 */
void 
senthost(path,host) 
char *path;
char host[];
{
   char  *p,*p2;

   if (strchr(path,'!') == NULL) {
      
      strcpy(host, hostname());
      return;
   }

   p = path+(strlen(path)-1);

   while (*p != '!') 
     p--;

   p2 = p-1; 

   while ((*p2 != '!') && (p2 != path))
     p2--;

   if (*p2 == '!')
     p2++;

   *p = '\0';

   strcpy(host, p2);
   *p = '!';


}


/*
 * Reject articles.  This can be arbitrarily picky.
 * Only the headers are used to decide, so this can be called before
 * the article is filed.
 * Be sure to put the fastest tests first, especially if they often result
 * in rejections.
 * NOTE from John Palmer, 05-10-91: This function is in charge or rejecting
 * articles that fail several tests for validity (like duplication, etc)
 * I've just added another nested IF to test what senthost returns to 
 * see if its the offending site. This is probably slowing relaynews down
 * quite a bit, but I see no choice. 
 */

void
reject(art)
register struct article *art;
{
	register char *msgid = art->h.h_msgid;
	register char *path =  art->h.h_path;
	register char *ngs =   art->h.h_ngs;
        register char *from = art->h.h_sender;
        char     snthost[60];

        senthost(path,snthost);  /* extract name of sending host from Path: */

	if (path == NULL) {
		prefuse(art);
		(void) printf("no Path: header\n");
	} else if (msgid == NULL || msgid[0] == '\0') {
		prefuse(art);
		(void) printf("missing Message-ID\n");
	} else if (strchr(msgid, ' ') != NULL || strchr(msgid, '\t') != NULL) {
		prefuse(art);
		(void) printf("whitespace in Message-ID\n");
        } else if (!strcmp(snthost,"zorch")) {
                prefuse(art);   /* Dump it: More of Kent's ravings */
                (void) printf("whoops - caught one from zorch\n");
	} else if (msgid[0] != '<' || msgid[strlen(msgid)-1] != '>') {
		prefuse(art);
		(void) printf("<> brackets missing in Message-ID\n");
	} else if (alreadyseen(msgid)) {
		prefuse(art);
		(void) printf("duplicate\n");
	} else if (path != NULL && hopcount(path) > 0 &&
	    !ngmatch(oursys()->sy_ngs, ngs)) {
		extern boolean histreject;

		/*
		 * non-local article, with all bad groups.
		 * (local articles with bad groups will be bounced
		 * by fileart when the groups aren't in active.)
		 */
		if (histreject)
			history(art, NOLOG);
		prefuse(art);
		(void) printf("no subscribed groups in `%s'\n", ngs);
	} else if (art->h.h_approved == NULL && moderated(ngs)) {
		prefuse(art);
		(void) printf("unapproved article in moderated group(s) `%s'\n",
			ngs);
	} else
		return;			/* art was accepted */
	art->a_status |= ST_REFUSED;
	if (!okrefusal)
		art->a_status |= ST_DROPPED;
}

-- 
CAT-TALK Conferencing System   |  "Buster Bunny is an abused | E-MAIL:
+1 313 343 0800 (USR HST)      |   child. Trust me - I'm a   | jp@Michigan.COM
+1 313 343 2925 (TELEBIT PEP)  |   professional..."          | 
********EIGHT NODES*********** |   -- Roger Rabbit           |