//
-// NNTP server module FIXME THIS IS NOT FINISHED
+// NNTP server module (RFC 3977)
//
// Copyright (c) 2014 by the citadel.org team
//
cprintf("READER\r\n");
cprintf("MODE-READER\r\n");
cprintf("LIST ACTIVE NEWSGROUPS\r\n");
+ cprintf("OVER\r\n");
#ifdef HAVE_OPENSSL
cprintf("STARTTLS\r\n");
#endif
else if (!strcasecmp(list_format, "NEWSGROUPS")) {
nld.list_format = NNTP_LIST_NEWSGROUPS;
}
+ else if (!strcasecmp(list_format, "OVERVIEW.FMT")) {
+ nld.list_format = NNTP_LIST_OVERVIEW_FMT;
+ }
else {
cprintf("501 syntax error , unsupported list format\r\n");
return;
}
+ // OVERVIEW.FMT delivers a completely different type of data than all of the
+ // other LIST commands. It's a stupid place to put it. But that's how it's
+ // written into RFC3977, so we have to handle it here.
+ if (nld.list_format == NNTP_LIST_OVERVIEW_FMT) {
+ cprintf("215 Order of fields in overview database.\r\n");
+ cprintf("Subject:\r\n");
+ cprintf("From:\r\n");
+ cprintf("Date:\r\n");
+ cprintf("Message-ID:\r\n");
+ cprintf("References:\r\n");
+ cprintf(":bytes\r\n");
+ cprintf(":lines\r\n");
+ cprintf(".\r\n");
+ return;
+ }
+
cprintf("215 list of newsgroups follows\r\n");
CtdlGetUser(&CC->user, CC->curr_user);
CtdlForEachRoom(nntp_list_backend, &nld);
}
+//
+// Implement DATE command.
+//
+void nntp_date(void) {
+ time_t now;
+ struct tm nowLocal;
+ struct tm nowUtc;
+ char tsFromUtc[32];
+
+ now = time(NULL);
+ localtime_r(&now, &nowLocal);
+ gmtime_r(&now, &nowUtc);
+
+ strftime(tsFromUtc, sizeof(tsFromUtc), "%Y%m%d%H%M%S", &nowUtc);
+
+ cprintf("111 %s\r\n", tsFromUtc);
+}
+
+
//
// back end for the LISTGROUP command , called for each message number
//
}
+//
+// back end for the XOVER command , called for each message number
+//
+void nntp_xover_backend(long msgnum, void *userdata) {
+
+ struct listgroup_range *lr = (struct listgroup_range *)userdata;
+
+ // check range if supplied
+ if (msgnum < lr->lo) return;
+ if ((lr->hi != 0) && (msgnum > lr->hi)) return;
+
+ cprintf("FIXME %ld FIXME\r\n", msgnum); // FIXME need to actually show the overview data
+}
+
+
+//
+//
+// XOVER is used by some clients, even if we don't offer it
+//
+void nntp_xover(const char *cmd) {
+ if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
+
+ citnntp *nntpstate = (citnntp *) CC->session_specific_data;
+ char range[256];
+ struct listgroup_range lr;
+
+ extract_token(range, cmd, 1, ' ', sizeof range);
+ lr.lo = atol(range);
+ if (lr.lo <= 0) {
+ lr.lo = nntpstate->current_article_number;
+ lr.hi = nntpstate->current_article_number;
+ }
+ else {
+ char *dash = strchr(range, '-');
+ if (dash != NULL) {
+ ++dash;
+ lr.hi = atol(dash);
+ if (lr.hi == 0) {
+ lr.hi = LONG_MAX;
+ }
+ if (lr.hi < lr.lo) {
+ lr.hi = lr.lo;
+ }
+ }
+ else {
+ lr.hi = lr.lo;
+ }
+ }
+
+ cprintf("224 Overview information follows\r\n");
+ CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL, nntp_xover_backend, &lr);
+ cprintf(".\r\n");
+}
+
+
//
// Main command loop for NNTP server sessions.
//
nntp_help();
}
+ else if (!strcasecmp(cmdname, "date")) {
+ nntp_date();
+ }
+
else if (!strcasecmp(cmdname, "capabilities")) {
nntp_capabilities();
}
nntp_last_next(ChrPtr(Cmd));
}
+ else if (
+ (!strcasecmp(cmdname, "xover"))
+ || (!strcasecmp(cmdname, "over"))
+ )
+ {
+ nntp_xover(ChrPtr(Cmd));
+ }
+
else {
cprintf("500 I'm afraid I can't do that.\r\n");
}