-#include "ctdl_module.h"
-
-
-
-/*
- * When we do network processing, it's accomplished in two passes; one to
- * gather a list of rooms and one to actually do them. It's ok that rplist
- * is global; we have a mutex that keeps it safe.
- */
-struct RoomProcList *rplist = NULL;
-
-
-
-
-
-
-/*
- * Check the use table. This is a list of messages which have recently
- * arrived on the system. It is maintained and queried to prevent the same
- * message from being entered into the database multiple times if it happens
- * to arrive multiple times by accident.
- */
-int network_usetable(struct CtdlMessage *msg) {
-
- char msgid[SIZ];
- struct cdbdata *cdbut;
- struct UseTable ut;
-
- /* Bail out if we can't generate a message ID */
- if (msg == NULL) {
- return(0);
- }
- if (msg->cm_fields['I'] == NULL) {
- return(0);
- }
- if (IsEmptyStr(msg->cm_fields['I'])) {
- return(0);
- }
-
- /* Generate the message ID */
- strcpy(msgid, msg->cm_fields['I']);
- if (haschar(msgid, '@') == 0) {
- strcat(msgid, "@");
- if (msg->cm_fields['N'] != NULL) {
- strcat(msgid, msg->cm_fields['N']);
- }
- else {
- return(0);
- }
- }
-
- cdbut = cdb_fetch(CDB_USETABLE, msgid, strlen(msgid));
- if (cdbut != NULL) {
- cdb_free(cdbut);
- syslog(LOG_DEBUG, "network_usetable() : we already have %s\n", msgid);
- return(1);
- }
-
- /* If we got to this point, it's unique: add it. */
- strcpy(ut.ut_msgid, msgid);
- ut.ut_timestamp = time(NULL);
- cdb_store(CDB_USETABLE, msgid, strlen(msgid), &ut, sizeof(struct UseTable) );
- return(0);
-}
-
-
-
-
-
-
-
-
-
-
-/*
- * Send the *entire* contents of the current room to one specific network node,
- * ignoring anything we know about which messages have already undergone
- * network processing. This can be used to bring a new node into sync.
- */
-int network_sync_to(char *target_node) {
- SpoolControl sc;
- int num_spooled = 0;
- int found_node = 0;
- char buf[256];
- char sc_type[256];
- char sc_node[256];
- char sc_room[256];
- char filename[PATH_MAX];
- FILE *fp;
-
- /* Grab the configuration line we're looking for */
- assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
- begin_critical_section(S_NETCONFIGS);
- fp = fopen(filename, "r");
- if (fp == NULL) {
- end_critical_section(S_NETCONFIGS);
- return(-1);
- }
- while (fgets(buf, sizeof buf, fp) != NULL) {
- buf[strlen(buf)-1] = 0;
- extract_token(sc_type, buf, 0, '|', sizeof sc_type);
- extract_token(sc_node, buf, 1, '|', sizeof sc_node);
- extract_token(sc_room, buf, 2, '|', sizeof sc_room);
- if ( (!strcasecmp(sc_type, "ignet_push_share"))
- && (!strcasecmp(sc_node, target_node)) ) {
- found_node = 1;
-
- /* Concise syntax because we don't need a full linked-list */
- memset(&sc, 0, sizeof(SpoolControl));
- sc.ignet_push_shares = (maplist *)
- malloc(sizeof(maplist));
- sc.ignet_push_shares->next = NULL;
- safestrncpy(sc.ignet_push_shares->remote_nodename,
- sc_node,
- sizeof sc.ignet_push_shares->remote_nodename);
- safestrncpy(sc.ignet_push_shares->remote_roomname,
- sc_room,
- sizeof sc.ignet_push_shares->remote_roomname);
- }
- }
- fclose(fp);
- end_critical_section(S_NETCONFIGS);
-
- if (!found_node) return(-1);
-
- /* Send ALL messages */
- num_spooled = CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL,
- network_spool_msg, &sc);
-
- /* Concise cleanup because we know there's only one node in the sc */
- free(sc.ignet_push_shares);
-
- syslog(LOG_NOTICE, "Synchronized %d messages to <%s>\n",
- num_spooled, target_node);
- return(num_spooled);
-}
-
-
-/*
- * Implements the NSYN command
- */
-void cmd_nsyn(char *argbuf) {
- int num_spooled;
- char target_node[256];
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- extract_token(target_node, argbuf, 0, '|', sizeof target_node);
- num_spooled = network_sync_to(target_node);
- if (num_spooled >= 0) {
- cprintf("%d Spooled %d messages.\n", CIT_OK, num_spooled);
- }
- else {
- cprintf("%d No such room/node share exists.\n",
- ERROR + ROOM_NOT_FOUND);
- }
-}
-
-
-
-/*
- * Batch up and send all outbound traffic from the current room
- */
-void network_queue_room(struct ctdlroom *qrbuf, void *data) {
- struct RoomProcList *ptr;
-
- ptr = (struct RoomProcList *) malloc(sizeof (struct RoomProcList));
- if (ptr == NULL) return;
-
- safestrncpy(ptr->name, qrbuf->QRname, sizeof ptr->name);
- begin_critical_section(S_RPLIST);
- ptr->next = rplist;
- rplist = ptr;
- end_critical_section(S_RPLIST);
-}
-
-void destroy_network_queue_room(void)
-{
- struct RoomProcList *cur, *p;
-
- cur = rplist;
- begin_critical_section(S_RPLIST);
- while (cur != NULL)
- {
- p = cur->next;
- free (cur);
- cur = p;
- }
- rplist = NULL;
- end_critical_section(S_RPLIST);
-}
-
-
-
-
-
-/*
- * Bounce a message back to the sender
- */
-void network_bounce(struct CtdlMessage *msg, char *reason) {
- char *oldpath = NULL;
- char buf[SIZ];
- char bouncesource[SIZ];
- char recipient[SIZ];
- struct recptypes *valid = NULL;
- char force_room[ROOMNAMELEN];
- static int serialnum = 0;
- size_t size;
-
- syslog(LOG_DEBUG, "entering network_bounce()\n");
-
- if (msg == NULL) return;
-
- snprintf(bouncesource, sizeof bouncesource, "%s@%s", BOUNCESOURCE, config.c_nodename);
-
- /*
- * Give it a fresh message ID
- */
- if (msg->cm_fields['I'] != NULL) {
- free(msg->cm_fields['I']);
- }
- snprintf(buf, sizeof buf, "%ld.%04lx.%04x@%s",
- (long)time(NULL), (long)getpid(), ++serialnum, config.c_fqdn);
- msg->cm_fields['I'] = strdup(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) {
- free(msg->cm_fields['M']);
- }
- msg->cm_fields['M'] = strdup(reason);
- msg->cm_format_type = 0;
-
- /*
- * Turn the message around
- */
- if (msg->cm_fields['R'] == NULL) {
- free(msg->cm_fields['R']);
- }
-
- if (msg->cm_fields['D'] == NULL) {
- free(msg->cm_fields['D']);
- }
-
- snprintf(recipient, sizeof recipient, "%s@%s",
- msg->cm_fields['A'], msg->cm_fields['N']);
-
- if (msg->cm_fields['A'] == NULL) {
- free(msg->cm_fields['A']);
- }
-
- if (msg->cm_fields['N'] == NULL) {
- free(msg->cm_fields['N']);
- }
-
- if (msg->cm_fields['U'] == NULL) {
- free(msg->cm_fields['U']);
- }
-
- msg->cm_fields['A'] = strdup(BOUNCESOURCE);
- msg->cm_fields['N'] = strdup(config.c_nodename);
- msg->cm_fields['U'] = strdup("Delivery Status Notification (Failure)");
-
- /* prepend our node to the path */
- if (msg->cm_fields['P'] != NULL) {
- oldpath = msg->cm_fields['P'];
- msg->cm_fields['P'] = NULL;
- }
- else {
- oldpath = strdup("unknown_user");
- }
- size = strlen(oldpath) + SIZ;
- msg->cm_fields['P'] = malloc(size);
- snprintf(msg->cm_fields['P'], size, "%s!%s", config.c_nodename, oldpath);
- free(oldpath);
-
- /* Now submit the message */
- valid = validate_recipients(recipient, NULL, 0);
- if (valid != NULL) if (valid->num_error != 0) {
- free_recipients(valid);
- valid = NULL;
- }
- if ( (valid == NULL) || (!strcasecmp(recipient, bouncesource)) ) {
- strcpy(force_room, config.c_aideroom);
- }
- else {
- strcpy(force_room, "");
- }
- if ( (valid == NULL) && IsEmptyStr(force_room) ) {
- strcpy(force_room, config.c_aideroom);
- }
- CtdlSubmitMsg(msg, valid, force_room, 0);
-
- /* Clean up */
- if (valid != NULL) free_recipients(valid);
- CtdlFreeMessage(msg);
- syslog(LOG_DEBUG, "leaving network_bounce()\n");
-}