-#include "ctdl_module.h"
-
-/*
- * Learn topology from path fields
- */
-void network_learn_topology(char *node, char *path, NetMap **the_netmap, int *netmap_changed) {
- char nexthop[256];
- NetMap *nmptr;
-
- *nexthop = '\0';
-
- if (num_tokens(path, '!') < 3) return;
- for (nmptr = *the_netmap; nmptr != NULL; nmptr = nmptr->next) {
- if (!strcasecmp(nmptr->nodename, node)) {
- extract_token(nmptr->nexthop, path, 0, '!', sizeof nmptr->nexthop);
- nmptr->lastcontact = time(NULL);
- (*netmap_changed) ++;
- return;
- }
- }
-
- /* If we got here then it's not in the map, so add it. */
- nmptr = (NetMap *) malloc(sizeof (NetMap));
- strcpy(nmptr->nodename, node);
- nmptr->lastcontact = time(NULL);
- extract_token(nmptr->nexthop, path, 0, '!', sizeof nmptr->nexthop);
- nmptr->next = *the_netmap;
- the_netmap = &nmptr;
- (*netmap_changed) ++;
-}
-
-
-
-
-int read_spoolcontrol_file(SpoolControl **scc, char *filename)
-{
- FILE *fp;
- char instr[SIZ];
- char buf[SIZ];
- char nodename[256];
- char roomname[ROOMNAMELEN];
- size_t miscsize = 0;
- size_t linesize = 0;
- int skipthisline = 0;
- namelist *nptr = NULL;
- maplist *mptr = NULL;
- SpoolControl *sc;
-
- fp = fopen(filename, "r");
- if (fp == NULL) {
- return 0;
- }
- sc = malloc(sizeof(SpoolControl));
- memset(sc, 0, sizeof(SpoolControl));
- *scc = sc;
-
- while (fgets(buf, sizeof buf, fp) != NULL) {
- buf[strlen(buf)-1] = 0;
-
- extract_token(instr, buf, 0, '|', sizeof instr);
- if (!strcasecmp(instr, strof(lastsent))) {
- sc->lastsent = extract_long(buf, 1);
- }
- else if (!strcasecmp(instr, strof(listrecp))) {
- nptr = (namelist *)
- malloc(sizeof(namelist));
- nptr->next = sc->listrecps;
- extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
- sc->listrecps = nptr;
- }
- else if (!strcasecmp(instr, strof(participate))) {
- nptr = (namelist *)
- malloc(sizeof(namelist));
- nptr->next = sc->participates;
- extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
- sc->participates = nptr;
- }
- else if (!strcasecmp(instr, strof(digestrecp))) {
- nptr = (namelist *)
- malloc(sizeof(namelist));
- nptr->next = sc->digestrecps;
- extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
- sc->digestrecps = nptr;
- }
- else if (!strcasecmp(instr, strof(ignet_push_share))) {
- extract_token(nodename, buf, 1, '|', sizeof nodename);
- extract_token(roomname, buf, 2, '|', sizeof roomname);
- mptr = (maplist *) malloc(sizeof(maplist));
- mptr->next = sc->ignet_push_shares;
- strcpy(mptr->remote_nodename, nodename);
- strcpy(mptr->remote_roomname, roomname);
- sc->ignet_push_shares = mptr;
- }
- else {
- /* Preserve 'other' lines ... *unless* they happen to
- * be subscribe/unsubscribe pendings with expired
- * timestamps.
- */
- skipthisline = 0;
- if (!strncasecmp(buf, strof(subpending)"|", 11)) {
- if (time(NULL) - extract_long(buf, 4) > EXP) {
- skipthisline = 1;
- }
- }
- if (!strncasecmp(buf, strof(unsubpending)"|", 13)) {
- if (time(NULL) - extract_long(buf, 3) > EXP) {
- skipthisline = 1;
- }
- }
-
- if (skipthisline == 0) {
- linesize = strlen(buf);
- sc->misc = realloc(sc->misc,
- (miscsize + linesize + 2) );
- sprintf(&sc->misc[miscsize], "%s\n", buf);
- miscsize = miscsize + linesize + 1;
- }
- }
-
-
- }
- fclose(fp);
- return 1;
-}
-
-void free_spoolcontrol_struct(SpoolControl **scc)
-{
- SpoolControl *sc;
- namelist *nptr = NULL;
- maplist *mptr = NULL;
-
- sc = *scc;
- while (sc->listrecps != NULL) {
- nptr = sc->listrecps->next;
- free(sc->listrecps);
- sc->listrecps = nptr;
- }
- /* Do the same for digestrecps */
- while (sc->digestrecps != NULL) {
- nptr = sc->digestrecps->next;
- free(sc->digestrecps);
- sc->digestrecps = nptr;
- }
- /* Do the same for participates */
- while (sc->participates != NULL) {
- nptr = sc->participates->next;
- free(sc->participates);
- sc->participates = nptr;
- }
- while (sc->ignet_push_shares != NULL) {
- mptr = sc->ignet_push_shares->next;
- free(sc->ignet_push_shares);
- sc->ignet_push_shares = mptr;
- }
- free(sc->misc);
- free(sc);
- *scc=NULL;
-}
-
-int writenfree_spoolcontrol_file(SpoolControl **scc, char *filename)
-{
- char tempfilename[PATH_MAX];
- int TmpFD;
- SpoolControl *sc;
- namelist *nptr = NULL;
- maplist *mptr = NULL;
- long len;
- time_t unixtime;
- struct timeval tv;
- long reltid; /* if we don't have SYS_gettid, use "random" value */
- StrBuf *Cfg;
- int rc;
-
- len = strlen(filename);
- memcpy(tempfilename, filename, len + 1);
-
-
-#if defined(HAVE_SYSCALL_H) && defined (SYS_gettid)
- reltid = syscall(SYS_gettid);
-#endif
- gettimeofday(&tv, NULL);
- /* Promote to time_t; types differ on some OSes (like darwin) */
- unixtime = tv.tv_sec;
-
- sprintf(tempfilename + len, ".%ld-%ld", reltid, unixtime);
- sc = *scc;
- errno = 0;
- TmpFD = open(tempfilename, O_CREAT|O_EXCL|O_RDWR, S_IRUSR|S_IWUSR);
- Cfg = NewStrBuf();
- if ((TmpFD < 0) || (errno != 0)) {
- syslog(LOG_CRIT, "ERROR: cannot open %s: %s\n",
- filename, strerror(errno));
- free_spoolcontrol_struct(scc);
- unlink(tempfilename);
- }
- else {
- fchown(TmpFD, config.c_ctdluid, 0);
- StrBufAppendPrintf(Cfg, "lastsent|%ld\n", sc->lastsent);
-
- /* Write out the listrecps while freeing from memory at the
- * same time. Am I clever or what? :)
- */
- while (sc->listrecps != NULL) {
- StrBufAppendPrintf(Cfg, "listrecp|%s\n", sc->listrecps->name);
- nptr = sc->listrecps->next;
- free(sc->listrecps);
- sc->listrecps = nptr;
- }
- /* Do the same for digestrecps */
- while (sc->digestrecps != NULL) {
- StrBufAppendPrintf(Cfg, "digestrecp|%s\n", sc->digestrecps->name);
- nptr = sc->digestrecps->next;
- free(sc->digestrecps);
- sc->digestrecps = nptr;
- }
- /* Do the same for participates */
- while (sc->participates != NULL) {
- StrBufAppendPrintf(Cfg, "participate|%s\n", sc->participates->name);
- nptr = sc->participates->next;
- free(sc->participates);
- sc->participates = nptr;
- }
- while (sc->ignet_push_shares != NULL) {
- StrBufAppendPrintf(Cfg, "ignet_push_share|%s", sc->ignet_push_shares->remote_nodename);
- if (!IsEmptyStr(sc->ignet_push_shares->remote_roomname)) {
- StrBufAppendPrintf(Cfg, "|%s", sc->ignet_push_shares->remote_roomname);
- }
- StrBufAppendPrintf(Cfg, "\n");
- mptr = sc->ignet_push_shares->next;
- free(sc->ignet_push_shares);
- sc->ignet_push_shares = mptr;
- }
- if (sc->misc != NULL) {
- StrBufAppendBufPlain(Cfg, sc->misc, -1, 0);
- }
- free(sc->misc);
-
- rc = write(TmpFD, ChrPtr(Cfg), StrLength(Cfg));
- if ((rc >=0 ) && (rc == StrLength(Cfg)))
- {
- close(TmpFD);
- rename(tempfilename, filename);
- }
- else {
- syslog(LOG_EMERG,
- "unable to write %s; [%s]; not enough space on the disk?\n",
- tempfilename,
- strerror(errno));
- close(TmpFD);
- unlink(tempfilename);
- }
- FreeStrBuf(&Cfg);
- free(sc);
- *scc=NULL;
- }
- return 1;
-}
-int is_recipient(SpoolControl *sc, const char *Name)
-{
- namelist *nptr;
- size_t len;
-
- len = strlen(Name);
- nptr = sc->listrecps;
- while (nptr != NULL) {
- if (strncmp(Name, nptr->name, len)==0)
- return 1;
- nptr = nptr->next;
- }
- /* Do the same for digestrecps */
- nptr = sc->digestrecps;
- while (nptr != NULL) {
- if (strncmp(Name, nptr->name, len)==0)
- return 1;
- nptr = nptr->next;
- }
- /* Do the same for participates */
- nptr = sc->participates;
- while (nptr != NULL) {
- if (strncmp(Name, nptr->name, len)==0)
- return 1;
- nptr = nptr->next;
- }
- return 0;
-}
-
-
-/*
- * Batch up and send all outbound traffic from the current room
- */
-void network_spoolout_room(char *room_to_spool,
- char *working_ignetcfg,
- NetMap *the_netmap)
-{
- char buf[SIZ];
- char filename[PATH_MAX];
- SpoolControl *sc;
- int i;
-
- /*
- * If the room doesn't exist, don't try to perform its networking tasks.
- * Normally this should never happen, but once in a while maybe a room gets
- * queued for networking and then deleted before it can happen.
- */
- if (CtdlGetRoom(&CC->room, room_to_spool) != 0) {
- syslog(LOG_CRIT, "ERROR: cannot load <%s>\n", room_to_spool);
- return;
- }
-
- assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
- begin_critical_section(S_NETCONFIGS);
-
- /* Only do net processing for rooms that have netconfigs */
- if (!read_spoolcontrol_file(&sc, filename))
- {
- end_critical_section(S_NETCONFIGS);
- return;
- }
- syslog(LOG_INFO, "Networking started for <%s>\n", CC->room.QRname);
-
- sc->working_ignetcfg = working_ignetcfg;
- sc->the_netmap = the_netmap;
-
- /* If there are digest recipients, we have to build a digest */
- if (sc->digestrecps != NULL) {
- sc->digestfp = tmpfile();
- fprintf(sc->digestfp, "Content-type: text/plain\n\n");
- }
-
- /* Do something useful */
- CtdlForEachMessage(MSGS_GT, sc->lastsent, NULL, NULL, NULL,
- network_spool_msg, sc);
-
- /* If we wrote a digest, deliver it and then close it */
- snprintf(buf, sizeof buf, "room_%s@%s",
- CC->room.QRname, config.c_fqdn);
- for (i=0; buf[i]; ++i) {
- buf[i] = tolower(buf[i]);
- if (isspace(buf[i])) buf[i] = '_';
- }
- if (sc->digestfp != NULL) {
- fprintf(sc->digestfp, " -----------------------------------"
- "------------------------------------"
- "-------\n"
- "You are subscribed to the '%s' "
- "list.\n"
- "To post to the list: %s\n",
- CC->room.QRname, buf
- );
- network_deliver_digest(sc); /* deliver and close */
- }
-
- /* Now rewrite the config file */
- writenfree_spoolcontrol_file(&sc, filename);
- end_critical_section(S_NETCONFIGS);
-}
-
-/*
- * Process a buffer containing a single message from a single file
- * from the inbound queue
- */
-void network_process_buffer(char *buffer, long size, char *working_ignetcfg, NetMap **the_netmap, int *netmap_changed)
-{
- struct CtdlMessage *msg = NULL;
- long pos;
- int field;
- struct recptypes *recp = NULL;
- char target_room[ROOMNAMELEN];
- struct ser_ret sermsg;
- char *oldpath = NULL;
- char filename[PATH_MAX];
- FILE *fp;
- char nexthop[SIZ];
- unsigned char firstbyte;
- unsigned char lastbyte;
-
- syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes\n", size);
-
- /* Validate just a little bit. First byte should be FF and * last byte should be 00. */
- firstbyte = buffer[0];
- lastbyte = buffer[size-1];
- if ( (firstbyte != 255) || (lastbyte != 0) ) {
- syslog(LOG_ERR, "Corrupt message ignored. Length=%ld, firstbyte = %d, lastbyte = %d\n",
- size, firstbyte, lastbyte);
- return;
- }
-
- /* Set default target room to trash */
- strcpy(target_room, TWITROOM);