-int NetQDebugEnabled = 0;
-struct CitContext networker_spool_CC;
-
-/* comes from lookup3.c from libcitadel... */
-extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
-
-typedef struct __roomlists {
- RoomProcList *rplist;
- HashList *RoomsInterestedIn;
-}roomlists;
-/*
- * 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;
-
-int GetNetworkedRoomNumbers(const char *DirName, HashList *DirList)
-{
- DIR *filedir = NULL;
- struct dirent *d;
- struct dirent *filedir_entry;
- long RoomNR;
- long Count = 0;
-
- filedir = opendir (DirName);
- if (filedir == NULL) {
- return 0;
- }
-
- d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
- if (d == NULL) {
- return 0;
- }
-
- while ((readdir_r(filedir, d, &filedir_entry) == 0) &&
- (filedir_entry != NULL))
- {
- RoomNR = atol(filedir_entry->d_name);
- if (RoomNR != 0) {
- Count++;
- Put(DirList, LKEY(RoomNR), &Count, reference_free_handler);
- }
- }
- free(d);
- closedir(filedir);
- return Count;
-}
-
-
-
-
-/*
- * 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)
-{
- struct CitContext *CCC = CC;
- 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);
- QN_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, long len)
-{
- struct CitContext *CCC = CC;
- const OneRoomNetCfg *OneRNCFG;
- const RoomNetCfgLine *pCfgLine;
- SpoolControl sc;
- int num_spooled = 0;
-
- /* Grab the configuration line we're looking for */
- begin_critical_section(S_NETCONFIGS);
- OneRNCFG = CtdlGetNetCfgForRoom(CCC->room.QRnumber);
- if ((OneRNCFG == NULL) ||
- (OneRNCFG->NetConfigs[ignet_push_share] == NULL))
- {
- return -1;
- }
-
- pCfgLine = OneRNCFG->NetConfigs[ignet_push_share];
- while (pCfgLine != NULL)
- {
- if (strcmp(ChrPtr(pCfgLine->Value[0]), target_node))
- break;
- pCfgLine = pCfgLine->next;
- }
- if (pCfgLine == NULL)
- {
- return -1;
- }
- memset(&sc, 0, sizeof(SpoolControl));
-
- sc.NetConfigs[ignet_push_share] = DuplicateOneGenericCfgLine(pCfgLine);
-
- end_critical_section(S_NETCONFIGS);
-
- sc.working_ignetcfg = CtdlLoadIgNetCfg();
- sc.the_netmap = CtdlReadNetworkMap();
-
- /* 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 */
- DeleteGenericCfgLine(NULL/*TODO*/, &sc.NetConfigs[ignet_push_share]);
-
- DeleteHash(&sc.working_ignetcfg);
- DeleteHash(&sc.the_netmap);
-
- QN_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;
- long len;
- char target_node[256];
-
- if (CtdlAccessCheck(ac_aide)) return;
-
- len = extract_token(target_node, argbuf, 0, '|', sizeof target_node);
- num_spooled = network_sync_to(target_node, len);
- 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_interesting_rooms(struct ctdlroom *qrbuf, void *data) {
- int i;
- struct RoomProcList *ptr;
- long QRNum = qrbuf->QRnumber;
- void *v;
- roomlists *RP = (roomlists*) data;
-
- if (!GetHash(RP->RoomsInterestedIn, LKEY(QRNum), &v))
- return;
-
- ptr = (struct RoomProcList *) malloc(sizeof (struct RoomProcList));
- if (ptr == NULL) return;
-
- ptr->namelen = strlen(qrbuf->QRname);
- if (ptr->namelen > ROOMNAMELEN)
- ptr->namelen = ROOMNAMELEN - 1;
-
- memcpy (ptr->name, qrbuf->QRname, ptr->namelen);
- ptr->name[ptr->namelen] = '\0';
- ptr->QRNum = qrbuf->QRnumber;
-
- for (i = 0; i < ptr->namelen; i++)
- {
- ptr->lcname[i] = tolower(ptr->name[i]);
- }
-
- ptr->lcname[ptr->namelen] = '\0';
- ptr->key = hashlittle(ptr->lcname, ptr->namelen, 9872345);
- ptr->next = RP->rplist;
- RP->rplist = ptr;
-}
-
-/*
- * Batch up and send all outbound traffic from the current room
- */
-void network_queue_room(struct ctdlroom *qrbuf, void *data) {
- int i;
- struct RoomProcList *ptr;
-
- if (qrbuf->QRdefaultview == VIEW_QUEUE)
- return;
- ptr = (struct RoomProcList *) malloc(sizeof (struct RoomProcList));
- if (ptr == NULL) return;
-
- ptr->namelen = strlen(qrbuf->QRname);
- if (ptr->namelen > ROOMNAMELEN)
- ptr->namelen = ROOMNAMELEN - 1;
-
- memcpy (ptr->name, qrbuf->QRname, ptr->namelen);
- ptr->name[ptr->namelen] = '\0';
- ptr->QRNum = qrbuf->QRnumber;
-
- for (i = 0; i < ptr->namelen; i++)
- {
- ptr->lcname[i] = tolower(ptr->name[i]);
- }
- ptr->lcname[ptr->namelen] = '\0';
- ptr->key = hashlittle(ptr->lcname, ptr->namelen, 9872345);
-
- begin_critical_section(S_RPLIST);
- ptr->next = rplist;
- rplist = ptr;
- end_critical_section(S_RPLIST);
-}
-
-void destroy_network_queue_room(RoomProcList *rplist)
-{
- struct RoomProcList *cur, *p;
-
- cur = rplist;
- while (cur != NULL)
- {
- p = cur->next;
- free (cur);
- cur = p;
- }
-}
-
-void destroy_network_queue_room_locked (void)
-{
- begin_critical_section(S_RPLIST);
- destroy_network_queue_room(rplist);
- end_critical_section(S_RPLIST);
-}
-
-
-
-/*
- * Bounce a message back to the sender
- */
-void network_bounce(struct CtdlMessage *msg, char *reason)
-{
- struct CitContext *CCC = CC;
- 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;
-
- QNM_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);
- QNM_syslog(LOG_DEBUG, "leaving network_bounce()\n");
-}
-
-
-
-
-
-
-
-/*
- * network_do_queue()
- *
- * Run through the rooms doing various types of network stuff.
- */
-void network_do_queue(void)
-{
- struct CitContext *CCC = CC;
- static int doing_queue = 0;
- static time_t last_run = 0L;
- int full_processing = 1;
- HashList *working_ignetcfg;
- HashList *the_netmap = NULL;
- int netmap_changed = 0;
- roomlists RL;
-
- /*
- * Run the full set of processing tasks no more frequently
- * than once every n seconds
- */
- if ( (time(NULL) - last_run) < config.c_net_freq ) {
- full_processing = 0;
- syslog(LOG_DEBUG, "Network full processing in %ld seconds.\n",
- config.c_net_freq - (time(NULL)- last_run)
- );
- }
-
- /*
- * This is a simple concurrency check to make sure only one queue run
- * is done at a time. We could do this with a mutex, but since we
- * don't really require extremely fine granularity here, we'll do it
- * with a static variable instead.
- */
- if (doing_queue) {
- return;
- }
- doing_queue = 1;
-
- become_session(&networker_spool_CC);
- begin_critical_section(S_RPLIST);
- RL.rplist = rplist;
- rplist = NULL;
- end_critical_section(S_RPLIST);
-
- RL.RoomsInterestedIn = NewHash(1, lFlathash);
- if (full_processing &&
- (GetNetworkedRoomNumbers(ctdl_netcfg_dir, RL.RoomsInterestedIn)==0))
- {
- doing_queue = 0;
- DeleteHash(&RL.RoomsInterestedIn);
- if (RL.rplist == NULL)
- return;
- }
- /* Load the IGnet Configuration into memory */
- working_ignetcfg = CtdlLoadIgNetCfg();
-
- /*
- * Load the network map and filter list into memory.
- */
- if (!server_shutting_down)
- the_netmap = CtdlReadNetworkMap();
- if (!server_shutting_down)
- load_network_filter_list();
-
- /*
- * Go ahead and run the queue
- */
- if (full_processing && !server_shutting_down) {
- QNM_syslog(LOG_DEBUG, "network: loading outbound queue");
- CtdlForEachRoom(network_queue_interesting_rooms, &RL);
- }
-
- if ((RL.rplist != NULL) && (!server_shutting_down)) {
- RoomProcList *ptr, *cmp;
- ptr = RL.rplist;
- QNM_syslog(LOG_DEBUG, "network: running outbound queue");
- while (ptr != NULL && !server_shutting_down) {
-
- cmp = ptr->next;
-
- while (cmp != NULL) {
- if ((cmp->namelen > 0) &&
- (cmp->key == ptr->key) &&
- (cmp->namelen == ptr->namelen) &&
- (strcmp(cmp->lcname, ptr->lcname) == 0))
- {
- cmp->namelen = 0;
- }
- cmp = cmp->next;
- }
-
- if (ptr->namelen > 0) {
- network_spoolout_room(ptr,
- working_ignetcfg,
- the_netmap);
- }
- ptr = ptr->next;
- }
- }
-
- /* If there is anything in the inbound queue, process it */
- if (!server_shutting_down) {
- network_do_spoolin(working_ignetcfg,
- the_netmap,
- &netmap_changed);
- }
-
- /* Free the filter list in memory */
- free_netfilter_list();
-
- /* Save the network map back to disk */
- if (netmap_changed) {
- StrBuf *MapStr = CtdlSerializeNetworkMap(the_netmap);
- CtdlPutSysConfig(IGNETMAP, SmashStrBuf(&MapStr));
- }
-
- /* combine singe message files into one spool entry per remote node. */
- network_consolidate_spoolout(working_ignetcfg, the_netmap);
-
- /* shut down. */
-
- DeleteHash(&the_netmap);
-
- DeleteHash(&working_ignetcfg);
-
- QNM_syslog(LOG_DEBUG, "network: queue run completed");
-
- if (full_processing) {
- last_run = time(NULL);
- }
- DeleteHash(&RL.RoomsInterestedIn);
- destroy_network_queue_room(RL.rplist);
- doing_queue = 0;
-}
-
-
-
-
-int network_room_handler (struct ctdlroom *room)
-{
- network_queue_room(room, NULL);
- return 0;
-}
-
-
-
-
-void network_logout_hook(void)
-{
- CitContext *CCC = MyContext();
-
- /*
- * If we were talking to a network node, we're not anymore...
- */
- if (!IsEmptyStr(CCC->net_node)) {
- CtdlNetworkTalkingTo(CCC->net_node, strlen(CCC->net_node), NTT_REMOVE);
- CCC->net_node[0] = '\0';
- }
-}
-void network_cleanup_function(void)
-{
- struct CitContext *CCC = CC;
-
- if (!IsEmptyStr(CCC->net_node)) {
- CtdlNetworkTalkingTo(CCC->net_node, strlen(CCC->net_node), NTT_REMOVE);
- CCC->net_node[0] = '\0';
- }
-}