/*
* $Id$
*
- * This module will eventually replace netproc and some of its utilities. In
- * the meantime, it serves as a mailing list manager.
+ * This module handles shared rooms, inter-Citadel mail, and outbound
+ * mailing list processing.
*
* Copyright (C) 2000-2001 by Art Cancro and others.
* This code is released under the terms of the GNU General Public License.
*/
/*
- * FIXME do something about concurrency issues:
- * 1. Don't allow the two nodes to poll each other at the same time
- * 2. Don't allow polls during network processing
- * 3. Kill Bill Gates using either a chainsaw or a wood chipper
+ * FIXME
+ * Don't allow polls during network processing
*/
#include "sysdep.h"
#include "internet_addressing.h"
#include "serv_network.h"
#include "clientsocket.h"
+#include "file_ops.h"
/*
+
+/*
+ * Bounce a message back to the sender
+ */
+void network_bounce(struct CtdlMessage *msg, char *reason) {
+ static int serialnum = 0;
+ FILE *fp;
+ char filename[SIZ];
+ struct ser_ret sermsg;
+ char *oldpath = NULL;
+ char buf[SIZ];
+
+ lprintf(9, "entering network_bounce()\n");
+
+ if (msg == NULL) return;
+
+ /*
+ * Give it a fresh message ID
+ */
+ if (msg->cm_fields['I'] != NULL) {
+ phree(msg->cm_fields['I']);
+ }
+ sprintf(buf, "%ld.%04x.%04x@%s",
+ time(NULL), getpid(), ++serialnum, config.c_fqdn);
+ msg->cm_fields['I'] = strdoop(buf);
+
+ /*
+ * FIXME ... right now we're just sending a bounce; we really want to
+ * include the text of the bounced message.
+ */
+ if (msg->cm_fields['M'] != NULL) {
+ phree(msg->cm_fields['M']);
+ }
+ msg->cm_fields['M'] = strdoop(reason);
+ msg->cm_format_type = 0;
+
+ /*
+ * Turn the message around
+ */
+ if (msg->cm_fields['R'] == NULL) {
+ phree(msg->cm_fields['R']);
+ }
+
+ if (msg->cm_fields['D'] == NULL) {
+ phree(msg->cm_fields['D']);
+ }
+
+ msg->cm_fields['R'] = msg->cm_fields['A'];
+ msg->cm_fields['D'] = msg->cm_fields['N'];
+ msg->cm_fields['A'] = strdoop(BOUNCESOURCE);
+ msg->cm_fields['N'] = strdoop(config.c_nodename);
+
+ if (!strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
+ phree(msg->cm_fields['D']);
+ }
+
+ /*
+ * If this is a bounce of a bounce, send it to the Aide> room
+ * instead of looping around forever
+ */
+ if (msg->cm_fields['D'] == NULL) if (msg->cm_fields['R'] != NULL)
+ if (!strcasecmp(msg->cm_fields['R'], BOUNCESOURCE)) {
+ phree(msg->cm_fields['R']);
+ if (msg->cm_fields['C'] != NULL) {
+ phree(msg->cm_fields['C']);
+ }
+ msg->cm_fields['C'] = strdoop(AIDEROOM);
+ }
+
+ /* prepend our node to the path */
+ if (msg->cm_fields['P'] != NULL) {
+ oldpath = msg->cm_fields['P'];
+ msg->cm_fields['P'] = NULL;
+ }
+ else {
+ oldpath = strdoop("unknown_user");
+ }
+ msg->cm_fields['P'] = mallok(strlen(oldpath) + SIZ);
+ sprintf(msg->cm_fields['P'], "%s!%s", config.c_nodename, oldpath);
+ phree(oldpath);
+
+ /* serialize the message */
+ serialize_message(&sermsg, msg);
+
+ /* now send it */
+ sprintf(filename, "./network/spoolin/bounce.%04x.%04x",
+ getpid(), serialnum);
+
+ fp = fopen(filename, "ab");
+ if (fp != NULL) {
+ fwrite(sermsg.ser,
+ sermsg.len, 1, fp);
+ fclose(fp);
+ }
+ phree(sermsg.ser);
+ CtdlFreeMessage(msg);
+ lprintf(9, "leaving network_bounce()\n");
+}
+
+
+
+
/*
* Process a buffer containing a single message from a single file
* from the inbound queue
else { /* invalid destination node name */
- /* FIXME bounce the msg */
+ network_bounce(msg,
+"A message you sent could not be delivered due to an invalid destination node"
+" name. Please check the address and try sending the message again.\n");
+ msg = NULL;
+ return;
}
}
e = alias(recp); /* alias and mail type */
if ((recp[0] == 0) || (e == MES_ERROR)) {
- /* FIXME bounce the msg */
+ network_bounce(msg,
+"A message you sent could not be delivered due to an invalid address.\n"
+"Please check the address and try sending the message again.\n");
+ msg = NULL;
+ return;
}
else if (e == MES_LOCAL) {
a = getuser(&tempUS, recp);
if (a != 0) {
- /* FIXME bounce the msg */
+
+ network_bounce(msg,
+"A message you sent could not be delivered because the user does not exist\n"
+"on this system. Please check the address and try again.\n");
+ msg = NULL;
+ return;
+
}
else {
MailboxName(target_room, &tempUS, MAILROOM);
int sock;
char buf[SIZ];
+ if (network_talking_to(node, NTT_CHECK)) return;
+ network_talking_to(node, NTT_ADD);
lprintf(5, "Polling node <%s> at %s:%s\n", node, host, port);
sock = sock_connect(host, port, "tcp");
if (sock < 0) {
lprintf(7, "Could not connect: %s\n", strerror(errno));
+ network_talking_to(node, NTT_REMOVE);
return;
}
sock_puts(sock, "QUIT");
bail: sock_close(sock);
+ network_talking_to(node, NTT_REMOVE);
}
return;
}
+ if (network_talking_to(node, NTT_CHECK)) {
+ cprintf("%d Already talking to %s right now\n", ERROR);
+ return;
+ }
+
safestrncpy(CC->net_node, node, sizeof CC->net_node);
+ network_talking_to(node, NTT_ADD);
cprintf("%d authenticated as network node '%s'\n", OK,
CC->net_node);
}
projects / citadel.git / blobdiff