* This module handles shared rooms, inter-Citadel mail, and outbound
* mailing list processing.
*
- * Copyright (c) 2000-2011 by the citadel.org team
+ * Copyright (c) 2000-2012 by the citadel.org team
*
* This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
+ * it under the terms of the GNU General Public License, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
* ** NOTE ** A word on the S_NETCONFIGS semaphore:
* This is a fairly high-level type of critical section. It ensures that no
* two threads work on the netconfigs files at the same time. Since we do
#include "file_ops.h"
#include "citadel_dirs.h"
#include "threads.h"
-
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
-
#include "context.h"
#include "netconfig.h"
#include "netspool.h"
#include "netmail.h"
#include "ctdl_module.h"
+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
*/
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;
+}
* message from being entered into the database multiple times if it happens
* to arrive multiple times by accident.
*/
-int network_usetable(struct CtdlMessage *msg) {
-
+int network_usetable(struct CtdlMessage *msg)
+{
+ struct CitContext *CCC = CC;
char msgid[SIZ];
struct cdbdata *cdbut;
struct UseTable ut;
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);
+ QN_syslog(LOG_DEBUG, "network_usetable() : we already have %s\n", msgid);
return(1);
}
* 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) {
+int network_sync_to(char *target_node, long len)
+{
+ struct CitContext *CCC = CC;
SpoolControl sc;
int num_spooled = 0;
int found_node = 0;
end_critical_section(S_NETCONFIGS);
return(-1);
}
- while (fgets(buf, sizeof buf, fp) != NULL) {
+ while (fgets(buf, sizeof buf, fp) != NULL)
+ {
buf[strlen(buf)-1] = 0;
+
extract_token(sc_type, buf, 0, '|', sizeof sc_type);
+ if (strcasecmp(sc_type, "ignet_push_share"))
+ continue;
+
extract_token(sc_node, buf, 1, '|', sizeof sc_node);
+ if (strcasecmp(sc_node, target_node))
+ continue;
+
extract_token(sc_room, buf, 2, '|', sizeof sc_room);
- if ( (!strcasecmp(sc_type, "ignet_push_share"))
- && (!strcasecmp(sc_node, target_node)) ) {
- found_node = 1;
+ 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);
- }
+ /* 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);
+ if (!found_node) {
+ free(sc.ignet_push_shares);
+ return(-1);
+ }
+
+ sc.working_ignetcfg = load_ignetcfg();
+ sc.the_netmap = read_network_map();
/* Send ALL messages */
num_spooled = CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, NULL,
/* 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);
+ 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);
}
*/
void cmd_nsyn(char *argbuf) {
int num_spooled;
+ long len;
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);
+ 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);
}
+/*
+ * 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;
- safestrncpy(ptr->name, qrbuf->QRname, sizeof ptr->name);
+ 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(void)
+void destroy_network_queue_room(RoomProcList *rplist)
{
struct RoomProcList *cur, *p;
- NetMap *nmcur, *nmp;
cur = rplist;
- begin_critical_section(S_RPLIST);
while (cur != NULL)
{
p = cur->next;
free (cur);
cur = p;
}
- rplist = NULL;
- end_critical_section(S_RPLIST);
-
- nmcur = the_netmap;
- while (nmcur != NULL)
- {
- nmp = nmcur->next;
- free (nmcur);
- nmcur = nmp;
- }
- the_netmap = NULL;
- if (working_ignetcfg != NULL)
- free (working_ignetcfg);
- working_ignetcfg = NULL;
}
-
+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) {
+void network_bounce(struct CtdlMessage *msg, char *reason)
+{
+ struct CitContext *CCC = CC;
char *oldpath = NULL;
char buf[SIZ];
char bouncesource[SIZ];
static int serialnum = 0;
size_t size;
- syslog(LOG_DEBUG, "entering network_bounce()\n");
+ QNM_syslog(LOG_DEBUG, "entering network_bounce()\n");
if (msg == NULL) return;
/* Clean up */
if (valid != NULL) free_recipients(valid);
CtdlFreeMessage(msg);
- syslog(LOG_DEBUG, "leaving network_bounce()\n");
+ QNM_syslog(LOG_DEBUG, "leaving network_bounce()\n");
}
*
* Run through the rooms doing various types of network stuff.
*/
-void network_do_queue(void) {
+void network_do_queue(void)
+{
+ struct CitContext *CCC = CC;
static int doing_queue = 0;
static time_t last_run = 0L;
- struct RoomProcList *ptr;
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
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)
+ config.c_net_freq - (time(NULL)- last_run)
);
}
}
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 */
- load_working_ignetcfg();
+ working_ignetcfg = load_ignetcfg();
/*
* Load the network map and filter list into memory.
*/
- read_network_map();
- load_network_filter_list();
+ if (!server_shutting_down)
+ the_netmap = read_network_map();
+ if (!server_shutting_down)
+ load_network_filter_list();
/*
* Go ahead and run the queue
*/
if (full_processing && !server_shutting_down) {
- syslog(LOG_DEBUG, "network: loading outbound queue\n");
- CtdlForEachRoom(network_queue_room, NULL);
- }
-
- if (rplist != NULL) {
- syslog(LOG_DEBUG, "network: running outbound queue\n");
- while (rplist != NULL && !server_shutting_down) {
- char spoolroomname[ROOMNAMELEN];
- safestrncpy(spoolroomname, rplist->name, sizeof spoolroomname);
- begin_critical_section(S_RPLIST);
-
- /* pop this record off the list */
- ptr = rplist;
- rplist = rplist->next;
- free(ptr);
-
- /* invalidate any duplicate entries to prevent double processing */
- for (ptr=rplist; ptr!=NULL; ptr=ptr->next) {
- if (!strcasecmp(ptr->name, spoolroomname)) {
- ptr->name[0] = 0;
+ 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;
}
- end_critical_section(S_RPLIST);
- if (spoolroomname[0] != 0) {
- network_spoolout_room(spoolroomname);
+ 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();
+ network_do_spoolin(working_ignetcfg,
+ the_netmap,
+ &netmap_changed);
}
- /* Save the network map back to disk */
- write_network_map();
-
/* Free the filter list in memory */
free_netfilter_list();
- network_consolidate_spoolout();
+ /* Save the network map back to disk */
+ if (netmap_changed) {
+ StrBuf *MapStr = SerializeNetworkMap(the_netmap);
+ CtdlPutSysConfig(IGNETMAP, SmashStrBuf(&MapStr));
+ }
+
+ /* combine singe message files into one spool entry per remote node. */
+ network_consolidate_spoolout(working_ignetcfg, the_netmap);
- syslog(LOG_DEBUG, "network: queue run completed\n");
+ /* 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;
}
return 0;
}
+int NTTDebugEnabled = 0;
+
+/*
+ * network_talking_to() -- concurrency checker
+ */
+static HashList *nttlist = NULL;
+int network_talking_to(const char *nodename, long len, int operation) {
+
+ int retval = 0;
+ HashPos *Pos = NULL;
+ void *vdata;
+
+ begin_critical_section(S_NTTLIST);
+
+ switch(operation) {
+
+ case NTT_ADD:
+ if (nttlist == NULL)
+ nttlist = NewHash(1, NULL);
+ Put(nttlist, nodename, len, NewStrBufPlain(nodename, len), HFreeStrBuf);
+ if (NTTDebugEnabled) syslog(LOG_DEBUG, "nttlist: added <%s>\n", nodename);
+ break;
+ case NTT_REMOVE:
+ if ((nttlist == NULL) ||
+ (GetCount(nttlist) == 0))
+ break;
+ Pos = GetNewHashPos(nttlist, 1);
+ if (GetHashPosFromKey (nttlist, nodename, len, Pos))
+ DeleteEntryFromHash(nttlist, Pos);
+ DeleteHashPos(&Pos);
+ if (NTTDebugEnabled) syslog(LOG_DEBUG, "nttlist: removed <%s>\n", nodename);
+
+ break;
+
+ case NTT_CHECK:
+ if ((nttlist == NULL) ||
+ (GetCount(nttlist) == 0))
+ break;
+ if (GetHash(nttlist, nodename, len, &vdata))
+ retval ++;
+ if (NTTDebugEnabled) syslog(LOG_DEBUG, "nttlist: have [%d] <%s>\n", retval, nodename);
+ break;
+ }
+
+ end_critical_section(S_NTTLIST);
+ return(retval);
+}
+
+void cleanup_nttlist(void)
+{
+ begin_critical_section(S_NTTLIST);
+ DeleteHash(&nttlist);
+ end_critical_section(S_NTTLIST);
+}
+
+
+
+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)) {
+ network_talking_to(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)) {
+ network_talking_to(CCC->net_node, strlen(CCC->net_node), NTT_REMOVE);
+ CCC->net_node[0] = '\0';
+ }
+}
+
/*
* Module entry point
*/
+void SetNTTDebugEnabled(const int n)
+{
+ NTTDebugEnabled = n;
+}
+void SetNetQDebugEnabled(const int n)
+{
+ NetQDebugEnabled = n;
+}
+
CTDL_MODULE_INIT(network)
{
if (!threading)
{
+ CtdlFillSystemContext(&networker_spool_CC, "CitNetSpool");
+ CtdlRegisterDebugFlagHook(HKEY("networktalkingto"), SetNTTDebugEnabled, &NTTDebugEnabled);
+ CtdlRegisterDebugFlagHook(HKEY("networkqueue"), SetNetQDebugEnabled, &NetQDebugEnabled);
+ CtdlRegisterCleanupHook(cleanup_nttlist);
+ CtdlRegisterSessionHook(network_cleanup_function, EVT_STOP, PRIO_STOP + 30);
+ CtdlRegisterSessionHook(network_logout_hook, EVT_LOGOUT, PRIO_LOGOUT + 10);
CtdlRegisterProtoHook(cmd_nsyn, "NSYN", "Synchronize room to node");
CtdlRegisterRoomHook(network_room_handler);
- CtdlRegisterCleanupHook(destroy_network_queue_room);
- CtdlRegisterSessionHook(network_do_queue, EVT_TIMER);
+ CtdlRegisterCleanupHook(destroy_network_queue_room_locked);
+ CtdlRegisterSessionHook(network_do_queue, EVT_TIMER, PRIO_QUEUE + 10);
}
return "network";
}
projects / citadel.git / blobdiff