}
-
//
// Convert a Citadel room name to a valid newsgroup name
//
return;
}
- // Note: the FQDN *must* appear as the first thing after the 220 code.
- // Some clients (including citmail.c) depend on it being there.
- //
+ // Display the standard greeting
cprintf("200 %s NNTP Citadel server is not finished yet\r\n", config.c_fqdn);
}
}
-
//
// implements the STARTTLS command
//
}
-
//
// Implements the AUTHINFO USER command (RFC 4643)
//
}
-
//
// Implements the AUTHINFO extension (RFC 4643) in USER/PASS mode
//
}
-
-//
-// Various output formats for the LIST commands
-//
-enum {
- NNTP_LIST_ACTIVE,
- NNTP_LIST_ACTIVE_TIMES,
- NNTP_LIST_DISTRIB_PATS,
- NNTP_LIST_HEADERS,
- NNTP_LIST_NEWSGROUPS,
- NNTP_LIST_OVERVIEW_FMT
-};
-
-
//
// Output a room name (newsgroup name) in formats required for LIST and NEWGROUPS command
//
}
-
//
// Called once per room by nntp_newgroups() to qualify and possibly output a single room
//
// Implements the NEWGROUPS command
//
void nntp_newgroups(const char *cmd) {
- /*
- * HACK: this works because the 5XX series error codes from citadel
- * protocol will also be considered error codes by an NNTP client
- */
if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
-
char stringy_date[16];
char stringy_time[16];
char stringy_gmt[16];
// Implements the LIST commands
//
void nntp_list(const char *cmd) {
- //
- // HACK: this works because the 5XX series error codes from citadel
- // protocol will also be considered error codes by an NNTP client
- //
if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
char list_format[64];
// Implements the GROUP and LISTGROUP commands
//
void nntp_group(const char *cmd) {
- //
- // HACK: this works because the 5XX series error codes from citadel
- // protocol will also be considered error codes by an NNTP client
- //
if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
citnntp *nntpstate = (citnntp *) CC->session_specific_data;
}
-
//
// Implements the ARTICLE, HEAD, BODY, and STAT commands.
// (These commands all accept the same parameters; they differ only in how they output the retrieved message.)
//
void nntp_article(const char *cmd) {
- /*
- * HACK: this works because the 5XX series error codes from citadel
- * protocol will also be considered error codes by an NNTP client
- */
if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
citnntp *nntpstate = (citnntp *) CC->session_specific_data;
int must_change_currently_selected_article = 0;
// We're going to store one of these values in the variable 'acmd' so that
+ // we can quickly check later which version of the output we want.
enum {
ARTICLE,
HEAD,
}
+//
+// The LAST and NEXT commands are so similar that they are handled by a single function.
+//
+void nntp_last_next(const char *cmd) {
+ if (CtdlAccessCheck(ac_logged_in_or_guest)) return;
+
+ citnntp *nntpstate = (citnntp *) CC->session_specific_data;
+ char which_command[16];
+ int acmd = 0;
+
+ // We're going to store one of these values in the variable 'acmd' so that
+ // we can quickly check later which version of the output we want.
+ enum {
+ NNTP_LAST,
+ NNTP_NEXT
+ };
+
+ extract_token(which_command, cmd, 0, ' ', sizeof which_command);
+
+ if (!strcasecmp(which_command, "last")) {
+ acmd = NNTP_LAST;
+ }
+ else if (!strcasecmp(which_command, "next")) {
+ acmd = NNTP_NEXT;
+ }
+ else {
+ cprintf("500 I'm afraid I can't do that.\r\n");
+ return;
+ }
+
+ // ok, here we go ... fetch the msglist so we can figure out our place in the universe
+ struct nntp_msglist nm;
+ int i = 0;
+ long selected_msgnum = 0;
+
+ nm = nntp_fetch_msglist(&CC->room);
+ if ((nm.num_msgs < 0) || (nm.msgnums == NULL)) {
+ cprintf("500 something bad happened\r\n");
+ return;
+ }
+
+ syslog(LOG_DEBUG, "NNTP: last_next num_msgs=%d and current article was %ld", nm.num_msgs, nntpstate->current_article_number);
+
+ if ( (acmd == NNTP_LAST) && (nm.num_msgs == 0) ) {
+ cprintf("422 no previous article in this group 1\r\n"); // nothing here
+ }
+
+ else if ( (acmd == NNTP_LAST) && (nntpstate->current_article_number <= nm.msgnums[0]) ) {
+ cprintf("422 no previous article in this group 2\r\n"); // already at the beginning
+ }
+
+ else if (acmd == NNTP_LAST) {
+ for (i=0; ((i<nm.num_msgs)&&(selected_msgnum<=0)); ++i) {
+ if ( (nm.msgnums[i] >= nntpstate->current_article_number) && (i > 0) ) {
+ selected_msgnum = nm.msgnums[i-1];
+ }
+ }
+ if (selected_msgnum > 0) {
+ nntpstate->current_article_number = selected_msgnum;
+ cprintf("223 %ld <FIXME@FIXME>\r\n", nntpstate->current_article_number);
+ }
+ else {
+ cprintf("422 no previous article in this group 3\r\n");
+ }
+ }
+
+ else if ( (acmd == NNTP_NEXT) && (nm.num_msgs == 0) ) {
+ cprintf("421 no next article in this group 4\r\n"); // nothing here
+ }
+
+ else if ( (acmd == NNTP_NEXT) && (nntpstate->current_article_number >= nm.msgnums[nm.num_msgs-1]) ) {
+ cprintf("421 no next article in this group 5\r\n"); // already at the end
+ }
+
+ else if (acmd == NNTP_NEXT) {
+ for (i=0; ((i<nm.num_msgs)&&(selected_msgnum<=0)); ++i) {
+ if (nm.msgnums[i] > nntpstate->current_article_number) {
+ selected_msgnum = nm.msgnums[i];
+ }
+ }
+ if (selected_msgnum > 0) {
+ nntpstate->current_article_number = selected_msgnum;
+ cprintf("223 %ld <FIXME@FIXME>\r\n", nntpstate->current_article_number);
+ }
+ else {
+ cprintf("421 no next article in this group 6\r\n");
+ }
+ }
+
+ // should never get here
+ else {
+ cprintf("500 internal error\r\n");
+ }
+
+ if (nm.msgnums != NULL) {
+ free(nm.msgnums);
+ }
+
+}
+
+
//
// Main command loop for NNTP server sessions.
//
|| (!strcasecmp(cmdname, "head"))
|| (!strcasecmp(cmdname, "body"))
|| (!strcasecmp(cmdname, "stat"))
- ) {
+ )
+ {
nntp_article(ChrPtr(Cmd));
}
+ else if (
+ (!strcasecmp(cmdname, "last"))
+ || (!strcasecmp(cmdname, "next"))
+ )
+ {
+ nntp_last_next(ChrPtr(Cmd));
+ }
+
else {
cprintf("500 I'm afraid I can't do that.\r\n");
}
projects / citadel.git / blobdiff