2 * This module handles shared rooms, inter-Citadel mail, and outbound
3 * mailing list processing.
5 * Copyright (c) 2000-2018 by the citadel.org team
7 * This program is open source software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License, version 3.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * ** NOTE ** A word on the S_NETCONFIGS semaphore:
16 * This is a fairly high-level type of critical section. It ensures that no
17 * two threads work on the netconfigs files at the same time. Since we do
18 * so many things inside these, here are the rules:
19 * 1. begin_critical_section(S_NETCONFIGS) *before* begin_ any others.
20 * 2. Do *not* perform any I/O with the client during these sections.
25 * Duration of time (in seconds) after which pending list subscribe/unsubscribe
26 * requests that have not been confirmed will be deleted.
28 #define EXP 259200 /* three days */
40 #include <sys/types.h>
42 #if TIME_WITH_SYS_TIME
43 # include <sys/time.h>
47 # include <sys/time.h>
55 # if HAVE_SYS_SYSCALL_H
56 # include <sys/syscall.h>
64 #include <libcitadel.h>
67 #include "citserver.h"
73 #include "internet_addressing.h"
74 #include "serv_network.h"
75 #include "clientsocket.h"
76 #include "citadel_dirs.h"
80 #include "ctdl_module.h"
92 #define IFTODT(mode) (((mode) & 0170000) >> 12)
93 #define DTTOIF(dirtype) ((dirtype) << 12)
97 void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
100 nptr = (RoomNetCfgLine *) malloc(sizeof(RoomNetCfgLine));
101 memset(nptr, 0, sizeof(RoomNetCfgLine));
102 OneRNCFG->lastsent = extract_long(LinePos, 0);
103 OneRNCFG->NetConfigs[ThisOne->C] = nptr;
106 void ParseRoomAlias(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
108 if (rncfg->Sender != NULL) {
112 ParseGeneric(ThisOne, Line, LinePos, rncfg);
113 rncfg->Sender = NewStrBufDup(rncfg->NetConfigs[roommailalias]->Value[0]);
116 void ParseSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
118 if (time(NULL) - extract_long(LinePos, 3) > EXP)
119 return; /* expired subscription... */
121 ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
123 void ParseUnSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
125 if (time(NULL) - extract_long(LinePos, 2) > EXP)
126 return; /* expired subscription... */
128 ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
132 void SerializeLastSent(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
134 StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
135 StrBufAppendPrintf(OutputBuffer, "|%ld\n", RNCfg->lastsent);
138 void DeleteLastSent(const CfgLineType *ThisOne, RoomNetCfgLine **data)
144 static const RoomNetCfg SpoolCfgs [4] = {
150 static const long SpoolCfgsCopyN [4] = {
154 int HaveSpoolConfig(OneRoomNetCfg* RNCfg)
158 for (i=0; i < 4; i++) if (RNCfg->NetConfigs[SpoolCfgs[i]] == NULL) interested = 1;
162 void Netmap_AddMe(struct CtdlMessage *msg, const char *defl, long defllen)
167 /* prepend our node to the path */
168 if (CM_IsEmpty(msg, eMessagePath)) {
169 CM_SetField(msg, eMessagePath, defl, defllen);
171 node_len = strlen(CtdlGetConfigStr("c_nodename"));
174 memcpy(buf, CtdlGetConfigStr("c_nodename"), node_len);
176 buf[node_len + 1] = '\0';
177 CM_PrependToField(msg, eMessagePath, buf, node_len + 1);
180 void InspectQueuedRoom(SpoolControl **pSC,
181 RoomProcList *room_to_spool,
182 HashList *working_ignetcfg,
183 HashList *the_netmap)
188 syslog(LOG_INFO, "netspool: InspectQueuedRoom(%s)", room_to_spool->name);
190 sc = (SpoolControl*)malloc(sizeof(SpoolControl));
191 memset(sc, 0, sizeof(SpoolControl));
192 sc->working_ignetcfg = working_ignetcfg;
193 sc->the_netmap = the_netmap;
196 * If the room doesn't exist, don't try to perform its networking tasks.
197 * Normally this should never happen, but once in a while maybe a room gets
198 * queued for networking and then deleted before it can happen.
200 if (CtdlGetRoom(&sc->room, room_to_spool->name) != 0) {
201 syslog(LOG_INFO, "netspool: ERROR; cannot load <%s>", room_to_spool->name);
206 assert(sc->RNCfg == NULL); // checking to make sure we cleared it from last time
208 sc->RNCfg = CtdlGetNetCfgForRoom(sc->room.QRnumber);
210 syslog(LOG_DEBUG, "netspool: room <%s> highest=%ld lastsent=%ld", room_to_spool->name, sc->room.QRhighest, sc->RNCfg->lastsent);
211 if ( (!HaveSpoolConfig(sc->RNCfg)) || (sc->room.QRhighest <= sc->RNCfg->lastsent) )
213 // There is nothing to send from this room.
214 syslog(LOG_DEBUG, "netspool: nothing to do for <%s>", room_to_spool->name);
215 FreeRoomNetworkStruct(&sc->RNCfg);
221 sc->lastsent = sc->RNCfg->lastsent;
222 room_to_spool->lastsent = sc->lastsent;
224 /* Now lets remember whats needed for the actual work... */
226 for (i=0; i < 4; i++)
228 aggregate_recipients(&sc->Users[SpoolCfgs[i]], SpoolCfgs[i], sc->RNCfg, SpoolCfgsCopyN[i]);
231 if (StrLength(sc->RNCfg->Sender) > 0) {
232 sc->Users[roommailalias] = NewStrBufDup(sc->RNCfg->Sender);
238 FreeRoomNetworkStruct(&sc->RNCfg); // done with this for now, we'll grab it again next time
243 void CalcListID(SpoolControl *sc)
246 struct CitContext *CCC = CC;
247 #define MAX_LISTIDLENGTH 150
249 // Load the room banner as the list description
250 struct CtdlMessage *msg = CtdlFetchMessage(sc->room.msgnum_info, 1, 1);
252 CC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
253 CtdlOutputPreLoadedMsg(msg, MT_CITADEL, HEADERS_NONE, 0, 0, 0);
255 sc->RoomInfo = CC->redirect_buffer;
256 CC->redirect_buffer = NULL;
259 sc->RoomInfo = NewStrBufPlain(NULL, SIZ);
262 // Calculate the List ID
263 sc->ListID = NewStrBufPlain(NULL, 1024);
264 if (StrLength(sc->RoomInfo) > 0)
266 const char *Pos = NULL;
267 StrBufSipLine(sc->ListID, sc->RoomInfo, &Pos);
269 if (StrLength(sc->ListID) > MAX_LISTIDLENGTH)
271 StrBufCutAt(sc->ListID, MAX_LISTIDLENGTH, NULL);
272 StrBufAppendBufPlain(sc->ListID, HKEY("..."), 0);
274 StrBufAsciify(sc->ListID, ' ');
278 StrBufAppendBufPlain(sc->ListID, CCC->room.QRname, -1, 0);
281 StrBufAppendBufPlain(sc->ListID, HKEY("<"), 0);
282 RoomName = NewStrBufPlain (sc->room.QRname, -1);
283 StrBufAsciify(RoomName, '_');
284 StrBufReplaceChars(RoomName, ' ', '_');
286 if (StrLength(sc->Users[roommailalias]) > 0)
291 Pos = StrLength(sc->ListID);
292 StrBufAppendBuf(sc->ListID, sc->Users[roommailalias], 0);
293 AtPos = strchr(ChrPtr(sc->ListID) + Pos, '@');
297 StrBufPeek(sc->ListID, AtPos, 0, '.');
302 StrBufAppendBufPlain(sc->ListID, HKEY("room_"), 0);
303 StrBufAppendBuf(sc->ListID, RoomName, 0);
304 StrBufAppendBufPlain(sc->ListID, HKEY("."), 0);
305 StrBufAppendBufPlain(sc->ListID, CtdlGetConfigStr("c_fqdn"), -1, 0);
308 * roomname <Room-Number.list-id.fqdn>
309 * according to rfc2919.txt it only has to be a uniq identifier
310 * under the domain of the system;
311 * in general MUAs use it to calculate the reply address nowadays.
314 StrBufAppendBufPlain(sc->ListID, HKEY(">"), 0);
316 if (StrLength(sc->Users[roommailalias]) == 0)
318 sc->Users[roommailalias] = NewStrBuf();
320 StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("room_"), 0);
321 StrBufAppendBuf(sc->Users[roommailalias], RoomName, 0);
322 StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("@"), 0);
323 StrBufAppendBufPlain(sc->Users[roommailalias], CtdlGetConfigStr("c_fqdn"), -1, 0);
325 StrBufLowerCase(sc->Users[roommailalias]);
328 FreeStrBuf(&RoomName);
333 * Batch up and send all outbound traffic from the current room (this is definitely used for mailing lists)
335 void network_spoolout_room(SpoolControl *sc)
337 struct CitContext *CCC = CC;
343 * If the room doesn't exist, don't try to perform its networking tasks.
344 * Normally this should never happen, but once in a while maybe a room gets
345 * queued for networking and then deleted before it can happen.
347 memcpy (&CCC->room, &sc->room, sizeof(ctdlroom));
349 syslog(LOG_INFO, "netspool: network_spoolout_room(room=%s, lastsent=%ld)", CCC->room.QRname, sc->lastsent);
353 /* remember where we started... */
354 lastsent = sc->lastsent;
356 /* Fetch the messages we ought to send & prepare them. */
357 CtdlForEachMessage(MSGS_GT, sc->lastsent, NULL, NULL, NULL, network_spool_msg, sc);
359 if (StrLength(sc->Users[roommailalias]) > 0)
362 len = StrLength(sc->Users[roommailalias]);
363 if (len + 1 > sizeof(buf))
364 len = sizeof(buf) - 1;
365 memcpy(buf, ChrPtr(sc->Users[roommailalias]), len);
370 snprintf(buf, sizeof buf, "room_%s@%s", CCC->room.QRname, CtdlGetConfigStr("c_fqdn"));
373 for (i=0; buf[i]; ++i) {
374 buf[i] = tolower(buf[i]);
375 if (isspace(buf[i])) buf[i] = '_';
379 /* If we wrote a digest, deliver it and then close it */
380 if ( (sc->Users[digestrecp] != NULL) && (sc->digestfp != NULL) )
382 fprintf(sc->digestfp,
383 " ------------------------------------------------------------------------------\n"
384 "You are subscribed to the '%s' list.\n"
385 "To post to the list: %s\n",
386 CCC->room.QRname, buf
388 network_deliver_digest(sc); /* deliver */
389 fclose(sc->digestfp);
391 remove_digest_file(&sc->room);
394 /* Now rewrite the netconfig */
395 syslog(LOG_DEBUG, "netspool: lastsent was %ld , now it is %ld", lastsent, sc->lastsent);
396 if (sc->lastsent != lastsent)
400 begin_critical_section(S_NETCONFIGS);
401 r = CtdlGetNetCfgForRoom(sc->room.QRnumber);
402 r->lastsent = sc->lastsent;
403 SaveRoomNetConfigFile(r, sc->room.QRnumber);
404 FreeRoomNetworkStruct(&r);
405 end_critical_section(S_NETCONFIGS);
410 void free_spoolcontrol_struct(SpoolControl **sc)
412 free_spoolcontrol_struct_members(*sc);
418 void free_spoolcontrol_struct_members(SpoolControl *sc)
421 FreeStrBuf(&sc->RoomInfo);
422 FreeStrBuf(&sc->ListID);
423 for (i = 0; i < maxRoomNetCfg; i++)
424 FreeStrBuf(&sc->Users[i]);
429 * It's ok if these directories already exist. Just fail silently.
431 void create_spool_dirs(void) {
432 if ((mkdir(ctdl_spool_dir, 0700) != 0) && (errno != EEXIST))
433 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_spool_dir, strerror(errno));
434 if (chown(ctdl_spool_dir, CTDLUID, (-1)) != 0)
435 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_spool_dir, strerror(errno));
436 if ((mkdir(ctdl_nettmp_dir, 0700) != 0) && (errno != EEXIST))
437 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_nettmp_dir, strerror(errno));
438 if (chown(ctdl_nettmp_dir, CTDLUID, (-1)) != 0)
439 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_nettmp_dir, strerror(errno));
440 if ((mkdir(ctdl_netout_dir, 0700) != 0) && (errno != EEXIST))
441 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_netout_dir, strerror(errno));
442 if (chown(ctdl_netout_dir, CTDLUID, (-1)) != 0)
443 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_netout_dir, strerror(errno));
450 CTDL_MODULE_INIT(network_spool)
454 CtdlREGISTERRoomCfgType(subpending, ParseSubPendingLine, 0, 5, SerializeGeneric, DeleteGenericCfgLine);
455 CtdlREGISTERRoomCfgType(unsubpending, ParseUnSubPendingLine, 0, 4, SerializeGeneric, DeleteGenericCfgLine);
456 CtdlREGISTERRoomCfgType(lastsent, ParseLastSent, 1, 1, SerializeLastSent, DeleteLastSent);
457 CtdlREGISTERRoomCfgType(listrecp, ParseGeneric, 0, 1, SerializeGeneric, DeleteGenericCfgLine);
458 CtdlREGISTERRoomCfgType(digestrecp, ParseGeneric, 0, 1, SerializeGeneric, DeleteGenericCfgLine);
459 CtdlREGISTERRoomCfgType(participate, ParseGeneric, 0, 1, SerializeGeneric, DeleteGenericCfgLine);
460 CtdlREGISTERRoomCfgType(roommailalias, ParseRoomAlias, 0, 1, SerializeGeneric, DeleteGenericCfgLine);
463 return "network_spool";