* This module handles shared rooms, inter-Citadel mail, and outbound
* mailing list processing.
*
- * Copyright (c) 2000-2012 by the citadel.org team
+ * Copyright (c) 2000-2015 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, version 3.
+ * This program is open source software; you can redistribute it and/or modify
+ * 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.
+ * 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.
*
* ** NOTE ** A word on the S_NETCONFIGS semaphore:
* This is a fairly high-level type of critical section. It ensures that no
#include "internet_addressing.h"
#include "serv_network.h"
#include "clientsocket.h"
-#include "file_ops.h"
#include "citadel_dirs.h"
#include "threads.h"
#include "context.h"
#endif
+/*
+ * Bounce a message back to the sender
+ */
+void network_bounce(struct CtdlMessage **pMsg, char *reason)
+{
+ struct CitContext *CCC = CC;
+ char buf[SIZ];
+ char bouncesource[SIZ];
+ char recipient[SIZ];
+ recptypes *valid = NULL;
+ char force_room[ROOMNAMELEN];
+ static int serialnum = 0;
+ long len;
+ struct CtdlMessage *msg = *pMsg;
+ *pMsg = NULL;
+ QNM_syslog(LOG_DEBUG, "entering network_bounce()\n");
+
+ if (msg == NULL) return;
+
+ snprintf(bouncesource, sizeof bouncesource, "%s@%s", BOUNCESOURCE, CtdlGetConfigStr("c_nodename"));
+
+ /*
+ * Give it a fresh message ID
+ */
+ len = snprintf(buf, sizeof(buf),
+ "%ld.%04lx.%04x@%s",
+ (long)time(NULL),
+ (long)getpid(),
+ ++serialnum,
+ CtdlGetConfigStr("c_fqdn"));
+
+ CM_SetField(msg, emessageId, buf, len);
+
+ /*
+ * FIXME ... right now we're just sending a bounce; we really want to
+ * include the text of the bounced message.
+ */
+ if (!IsEmptyStr(reason)) {
+ CM_SetField(msg, eMesageText, reason, strlen(reason));
+ }
+ msg->cm_format_type = 0;
+
+ /*
+ * Turn the message around
+ */
+ CM_FlushField(msg, eRecipient);
+ CM_FlushField(msg, eDestination);
+
+ len = snprintf(recipient, sizeof(recipient), "%s@%s",
+ msg->cm_fields[eAuthor],
+ msg->cm_fields[eNodeName]);
+
+ CM_SetField(msg, eAuthor, HKEY(BOUNCESOURCE));
+ CM_SetField(msg, eNodeName, CtdlGetConfigStr("c_nodename"), strlen(CtdlGetConfigStr("c_nodename")));
+ CM_SetField(msg, eMsgSubject, HKEY("Delivery Status Notification (Failure)"));
+
+ Netmap_AddMe(msg, HKEY("unknown_user"));
+
+ /* 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, CtdlGetConfigStr("c_aideroom"));
+ }
+ else {
+ strcpy(force_room, "");
+ }
+ if ( (valid == NULL) && IsEmptyStr(force_room) ) {
+ strcpy(force_room, CtdlGetConfigStr("c_aideroom"));
+ }
+ CtdlSubmitMsg(msg, valid, force_room, 0);
+
+ /* Clean up */
+ if (valid != NULL) free_recipients(valid);
+ CM_Free(msg);
+ QNM_syslog(LOG_DEBUG, "leaving network_bounce()\n");
+}
+
+
void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
{
RoomNetCfgLine *nptr;
return interested;
}
+void Netmap_AddMe(struct CtdlMessage *msg, const char *defl, long defllen)
+{
+ long node_len;
+ char buf[SIZ];
+ /* prepend our node to the path */
+ if (CM_IsEmpty(msg, eMessagePath)) {
+ CM_SetField(msg, eMessagePath, defl, defllen);
+ }
+ node_len = strlen(CtdlGetConfigStr("c_nodename"));
+ if (node_len >= SIZ)
+ node_len = SIZ - 1;
+ memcpy(buf, CtdlGetConfigStr("c_nodename"), node_len);
+ buf[node_len] = '!';
+ buf[node_len + 1] = '\0';
+ CM_PrependToField(msg, eMessagePath, buf, node_len + 1);
+}
void InspectQueuedRoom(SpoolControl **pSC,
RoomProcList *room_to_spool,
HashList *working_ignetcfg,
HashList *the_netmap)
{
+ struct CitContext *CCC = CC;
SpoolControl *sc;
int i = 0;
}
if (sc->room.QRhighest <= sc->lastsent)
{
- syslog(LOG_DEBUG, "nothing to do for <%s>\n", room_to_spool->name);
+ QN_syslog(LOG_DEBUG, "nothing to do for <%s>\n", room_to_spool->name);
free(sc);
return;
}
+ begin_critical_section(S_NETCONFIGS);
if (sc->RNCfg == NULL)
sc->RNCfg = CtdlGetNetCfgForRoom(sc->room.QRnumber);
if (!HaveSpoolConfig(sc->RNCfg))
{
+ end_critical_section(S_NETCONFIGS);
free(sc);
/* nothing to do for this room... */
return;
if (StrLength(sc->RNCfg->Sender) > 0)
sc->Users[roommailalias] = NewStrBufDup(sc->RNCfg->Sender);
+ end_critical_section(S_NETCONFIGS);
sc->next = *pSC;
*pSC = sc;
StrBufAppendBufPlain(sc->ListID, HKEY("room_"), 0);
StrBufAppendBuf(sc->ListID, RoomName, 0);
StrBufAppendBufPlain(sc->ListID, HKEY("."), 0);
- StrBufAppendBufPlain(sc->ListID, config.c_fqdn, -1, 0);
- FreeStrBuf(&RoomName);
+ StrBufAppendBufPlain(sc->ListID, CtdlGetConfigStr("c_fqdn"), -1, 0);
/*
* this used to be:
* roomname <Room-Number.list-id.fqdn>
StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("room_"), 0);
StrBufAppendBuf(sc->Users[roommailalias], RoomName, 0);
StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("@"), 0);
- StrBufAppendBufPlain(sc->Users[roommailalias], config.c_fqdn, -1, 0);
+ StrBufAppendBufPlain(sc->Users[roommailalias], CtdlGetConfigStr("c_fqdn"), -1, 0);
StrBufLowerCase(sc->Users[roommailalias]);
}
+ FreeStrBuf(&RoomName);
}
+static time_t last_digest_delivery = 0;
/*
* Batch up and send all outbound traffic from the current room
syslog(LOG_INFO, "Networking started for <%s>\n", CCC->room.QRname);
- /* If there are digest recipients, we have to build a digest */
- if (sc->Users[digestrecp] != NULL) {
- sc->digestfp = tmpfile();
- fprintf(sc->digestfp, "Content-type: text/plain\n\n");
- }
-
CalcListID(sc);
/* remember where we started... */
lastsent = sc->lastsent;
- /* Do something useful */
+ /* Fetch the messages we ought to send & prepare them. */
CtdlForEachMessage(MSGS_GT, sc->lastsent, NULL, NULL, NULL,
network_spool_msg, sc);
- /* If we wrote a digest, deliver it and then close it */
if (StrLength(sc->Users[roommailalias]) > 0)
{
long len;
else
{
snprintf(buf, sizeof buf, "room_%s@%s",
- CCC->room.QRname, config.c_fqdn);
+ CCC->room.QRname, CtdlGetConfigStr("c_fqdn"));
}
for (i=0; buf[i]; ++i) {
buf[i] = tolower(buf[i]);
if (isspace(buf[i])) buf[i] = '_';
}
+
+
+ /* If we wrote a digest, deliver it and then close it */
+ if (sc->Users[digestrecp] != NULL) {
+ time_t now = time(NULL);
+ time_t secs_today = now % (24 * 60 * 60);
+ long delta = 0;
+
+ if (last_digest_delivery != 0) {
+ delta = now - last_digest_delivery;
+ delta = (24 * 60 * 60) - delta;
+ }
+
+ if ((secs_today < 300) &&
+ (delta < 300))
+ {
+ if (sc->digestfp == NULL) {
+ sc->digestfp = create_digest_file(&sc->room, 0);
+ }
+ if (sc->digestfp != NULL) {
+ last_digest_delivery = now;
+ fprintf(sc->digestfp,
+ " -----------------------------------"
+ "------------------------------------"
+ "-------\n"
+ "You are subscribed to the '%s' "
+ "list.\n"
+ "To post to the list: %s\n",
+ CCC->room.QRname, buf
+ );
+ network_deliver_digest(sc); /* deliver */
+ remove_digest_file(&sc->room);
+ }
+ }
+ }
if (sc->digestfp != NULL) {
- fprintf(sc->digestfp,
- " -----------------------------------"
- "------------------------------------"
- "-------\n"
- "You are subscribed to the '%s' "
- "list.\n"
- "To post to the list: %s\n",
- CCC->room.QRname, buf
- );
- network_deliver_digest(sc); /* deliver and close */
+ fclose(sc->digestfp);
+ sc->digestfp = NULL;
}
/* Now rewrite the config file */
if (sc->lastsent != lastsent)
{
+ begin_critical_section(S_NETCONFIGS);
sc->RNCfg = CtdlGetNetCfgForRoom(sc->room.QRnumber);
sc->RNCfg->lastsent = sc->lastsent;
sc->RNCfg->changed = 1;
+ end_critical_section(S_NETCONFIGS);
}
- end_critical_section(S_NETCONFIGS);
}
+
+/*
+ * 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)
+{
+ StrBuf *msgid;
+ struct CitContext *CCC = CC;
+ time_t now;
+
+ /* Bail out if we can't generate a message ID */
+ if ((msg == NULL) || CM_IsEmpty(msg, emessageId))
+ {
+ return(0);
+ }
+
+ /* Generate the message ID */
+ msgid = NewStrBufPlain(CM_KEY(msg, emessageId));
+ if (haschar(ChrPtr(msgid), '@') == 0) {
+ StrBufAppendBufPlain(msgid, HKEY("@"), 0);
+ if (!CM_IsEmpty(msg, eNodeName)) {
+ StrBufAppendBufPlain(msgid, CM_KEY(msg, eNodeName), 0);
+ }
+ else {
+ FreeStrBuf(&msgid);
+ return(0);
+ }
+ }
+ now = time(NULL);
+ if (CheckIfAlreadySeen("Networker Import",
+ msgid,
+ now, 0,
+ eUpdate,
+ CCC->cs_pid, 0) != 0)
+ {
+ FreeStrBuf(&msgid);
+ return(1);
+ }
+ FreeStrBuf(&msgid);
+
+ return(0);
+}
+
+
/*
* Process a buffer containing a single message from a single file
* from the inbound queue
struct CtdlMessage *msg = NULL;
long pos;
int field;
- struct recptypes *recp = NULL;
+ recptypes *recp = NULL;
char target_room[ROOMNAMELEN];
struct ser_ret sermsg;
- char *oldpath = NULL;
char filename[PATH_MAX];
FILE *fp;
const StrBuf *nexthop = NULL;
for (pos = 3; pos < size; ++pos) {
field = buffer[pos];
len = strlen(buffer + pos + 1);
- msg->cm_fields[field] = malloc(len + 1);
- memcpy (msg->cm_fields[field], buffer+ pos + 1, len + 1);
+ CM_SetField(msg, field, buffer + pos + 1, len);
pos = pos + len + 1;
}
/* Check for message routing */
- if (msg->cm_fields['D'] != NULL) {
- if (strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
+ if (!CM_IsEmpty(msg, eDestination)) {
+ if (strcasecmp(msg->cm_fields[eDestination], CtdlGetConfigStr("c_nodename"))) {
/* route the message */
- Buf = NewStrBufPlain(msg->cm_fields['D'], -1);
+ Buf = NewStrBufPlain(CM_KEY(msg,eDestination));
if (CtdlIsValidNode(&nexthop,
NULL,
Buf,
working_ignetcfg,
the_netmap) == 0)
{
- /* 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);
+ Netmap_AddMe(msg, HKEY("unknown_user"));
/* serialize the message */
- serialize_message(&sermsg, msg);
+ CtdlSerializeMessage(&sermsg, msg);
/* now send it */
if (StrLength(nexthop) == 0) {
QN_syslog(LOG_ERR, "%s: %s\n", filename, strerror(errno));
}
free(sermsg.ser);
- CtdlFreeMessage(msg);
+ CM_Free(msg);
FreeStrBuf(&Buf);
return;
}
else { /* invalid destination node name */
FreeStrBuf(&Buf);
- network_bounce(msg,
+ network_bounce(&msg,
"A message you sent could not be delivered due to an invalid destination node"
" name. Please check the address and try sending the message again.\n");
- msg = NULL;
return;
}
* connected that it's inevitable.)
*/
if (network_usetable(msg) != 0) {
- CtdlFreeMessage(msg);
+ CM_Free(msg);
return;
}
/* Learn network topology from the path */
- if ((msg->cm_fields['N'] != NULL) && (msg->cm_fields['P'] != NULL)) {
- NetworkLearnTopology(msg->cm_fields['N'],
- msg->cm_fields['P'],
+ if (!CM_IsEmpty(msg, eNodeName) && !CM_IsEmpty(msg, eMessagePath)) {
+ NetworkLearnTopology(msg->cm_fields[eNodeName],
+ msg->cm_fields[eMessagePath],
the_netmap,
netmap_changed);
}
/* Is the sending node giving us a very persuasive suggestion about
* which room this message should be saved in? If so, go with that.
*/
- if (msg->cm_fields['C'] != NULL) {
- safestrncpy(target_room, msg->cm_fields['C'], sizeof target_room);
+ if (!CM_IsEmpty(msg, eRemoteRoom)) {
+ safestrncpy(target_room, msg->cm_fields[eRemoteRoom], sizeof target_room);
}
/* Otherwise, does it have a recipient? If so, validate it... */
- else if (msg->cm_fields['R'] != NULL) {
- recp = validate_recipients(msg->cm_fields['R'], NULL, 0);
+ else if (!CM_IsEmpty(msg, eRecipient)) {
+ recp = validate_recipients(msg->cm_fields[eRecipient], NULL, 0);
if (recp != NULL) if (recp->num_error != 0) {
- network_bounce(msg,
+ network_bounce(&msg,
"A message you sent could not be delivered due to an invalid address.\n"
"Please check the address and try sending the message again.\n");
- msg = NULL;
free_recipients(recp);
QNM_syslog(LOG_DEBUG, "Bouncing message due to invalid recipient address.\n");
return;
}
/* Our last shot at finding a home for this message is to see if
- * it has the O field (Originating room) set.
+ * it has the eOriginalRoom (O) field (Originating room) set.
*/
- else if (msg->cm_fields['O'] != NULL) {
- safestrncpy(target_room, msg->cm_fields['O'], sizeof target_room);
+ else if (!CM_IsEmpty(msg, eOriginalRoom)) {
+ safestrncpy(target_room, msg->cm_fields[eOriginalRoom], sizeof target_room);
}
/* Strip out fields that are only relevant during transit */
- if (msg->cm_fields['D'] != NULL) {
- free(msg->cm_fields['D']);
- msg->cm_fields['D'] = NULL;
- }
- if (msg->cm_fields['C'] != NULL) {
- free(msg->cm_fields['C']);
- msg->cm_fields['C'] = NULL;
- }
+ CM_FlushField(msg, eDestination);
+ CM_FlushField(msg, eRemoteRoom);
/* save the message into a room */
if (PerformNetprocHooks(msg, target_room) == 0) {
msg->cm_flags = CM_SKIP_HOOKS;
CtdlSubmitMsg(msg, recp, target_room, 0);
}
- CtdlFreeMessage(msg);
+ CM_Free(msg);
free_recipients(recp);
}
long msgend = (-1L);
long msgcur = 0L;
int ch;
-
+ int nMessages = 0;
fp = fopen(filename, "rb");
if (fp == NULL) {
}
++msgcur;
+ nMessages ++;
}
msgend = msgcur - 1;
working_ignetcfg,
the_netmap,
netmap_changed);
+ nMessages ++;
}
+ if (nMessages > 0)
+ QN_syslog(LOG_INFO,
+ "network: processed %d messages in %s\n",
+ nMessages,
+ filename);
+
fclose(fp);
unlink(filename);
}
(filedir_entry != NULL))
{
#ifdef _DIRENT_HAVE_D_NAMLEN
- d_namelen = filedir_entry->d_namelen;
+ d_namelen = filedir_entry->d_namlen;
#else
d_namelen = strlen(filedir_entry->d_name);
(filedir_entry != NULL))
{
#ifdef _DIRENT_HAVE_D_NAMLEN
- d_namelen = filedir_entry->d_namelen;
+ d_namelen = filedir_entry->d_namlen;
#else
d_namelen = strlen(filedir_entry->d_name);
(filedir_entry != NULL))
{
#ifdef _DIRENT_HAVE_D_NAMLEN
- d_namelen = filedir_entry->d_namelen;
+ d_namelen = filedir_entry->d_namlen;
#else
d_namelen = strlen(filedir_entry->d_name);
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