Almost done...
[citadel.git] / citadel / modules / network / serv_netspool.c
index 0edb1f11efa0e240bcf7c7c3d79ead11d21b3934..32528dfb544cf6a2933f6f20bca847d579261249 100644 (file)
@@ -2,15 +2,15 @@
  * This module handles shared rooms, inter-Citadel mail, and outbound
  * mailing list processing.
  *
- * Copyright (c) 2000-2012 by the citadel.org team
+ * Copyright (c) 2000-2016 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
 #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()");
+
+       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()");
+}
+
+
 void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 {
        RoomNetCfgLine *nptr;
@@ -168,10 +250,10 @@ void Netmap_AddMe(struct CtdlMessage *msg, const char *defl, long defllen)
        if (CM_IsEmpty(msg, eMessagePath)) {
                CM_SetField(msg, eMessagePath, defl, defllen);
        }
-       node_len = configlen.c_nodename;
+       node_len = strlen(CtdlGetConfigStr("c_nodename"));
        if (node_len >= SIZ) 
                node_len = SIZ - 1;
-       memcpy(buf, config.c_nodename, node_len);
+       memcpy(buf, CtdlGetConfigStr("c_nodename"), node_len);
        buf[node_len] = '!';
        buf[node_len + 1] = '\0';
        CM_PrependToField(msg, eMessagePath, buf, node_len + 1);
@@ -199,20 +281,21 @@ void InspectQueuedRoom(SpoolControl **pSC,
         * queued for networking and then deleted before it can happen.
         */
        if (CtdlGetRoom(&sc->room, room_to_spool->name) != 0) {
-               syslog(LOG_CRIT, "ERROR: cannot load <%s>\n", room_to_spool->name);
+               syslog(LOG_CRIT, "ERROR: cannot load <%s>", room_to_spool->name);
                free(sc);
                return;
        }
        if (sc->room.QRhighest <= sc->lastsent)
        {
-               QN_syslog(LOG_DEBUG, "nothing to do for <%s>\n", room_to_spool->name);
+               QN_syslog(LOG_DEBUG, "nothing to do for <%s>", room_to_spool->name);
                free(sc);
                return;
        }
 
        begin_critical_section(S_NETCONFIGS);
-       if (sc->RNCfg == NULL)
+       if (sc->RNCfg == NULL) {
                sc->RNCfg = CtdlGetNetCfgForRoom(sc->room.QRnumber);
+       }
 
        if (!HaveSpoolConfig(sc->RNCfg))
        {
@@ -229,11 +312,13 @@ void InspectQueuedRoom(SpoolControl **pSC,
                aggregate_recipients(&sc->Users[SpoolCfgs[i]],
                                     SpoolCfgs[i],
                                     sc->RNCfg,
-                                    SpoolCfgsCopyN[i]);
+                                    SpoolCfgsCopyN[i]
+               );
        }
        
-       if (StrLength(sc->RNCfg->Sender) > 0)
+       if (StrLength(sc->RNCfg->Sender) > 0) {
                sc->Users[roommailalias] = NewStrBufDup(sc->RNCfg->Sender);
+       }
        end_critical_section(S_NETCONFIGS);
 
        sc->next = *pSC;
@@ -307,7 +392,7 @@ void CalcListID(SpoolControl *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);
+               StrBufAppendBufPlain(sc->ListID, CtdlGetConfigStr("c_fqdn"), -1, 0);
                /*
                 * this used to be:
                 * roomname <Room-Number.list-id.fqdn>
@@ -325,7 +410,7 @@ void CalcListID(SpoolControl *sc)
                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]);
        }
@@ -352,7 +437,7 @@ void network_spoolout_room(SpoolControl *sc)
         */
        memcpy (&CCC->room, &sc->room, sizeof(ctdlroom));
 
-       syslog(LOG_INFO, "Networking started for <%s>\n", CCC->room.QRname);
+       syslog(LOG_INFO, "Networking started for <%s>", CCC->room.QRname);
 
        CalcListID(sc);
 
@@ -375,7 +460,7 @@ void network_spoolout_room(SpoolControl *sc)
        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) {
@@ -422,7 +507,11 @@ void network_spoolout_room(SpoolControl *sc)
                sc->digestfp = NULL;
        }
 
-       /* Now rewrite the config file */
+       /* Now rewrite the netconfig */
+
+       // THIS IS THE ONLY PLACE WHERE WE HAVE TO REWRITE THE NETCONFIG.
+
+
        if (sc->lastsent != lastsent)
        {
                begin_critical_section(S_NETCONFIGS);
@@ -434,6 +523,53 @@ void network_spoolout_room(SpoolControl *sc)
        }
 }
 
+
+/*
+ * 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 
@@ -455,14 +591,13 @@ void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg,
        unsigned char firstbyte;
        unsigned char lastbyte;
 
-       QN_syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes\n", size);
+       QN_syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes", 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) ) {
-               QN_syslog(LOG_ERR, "Corrupt message ignored.  Length=%ld, firstbyte = %d, lastbyte = %d\n",
-                         size, firstbyte, lastbyte);
+               QN_syslog(LOG_ERR, "Corrupt message ignored.  Length=%ld, firstbyte = %d, lastbyte = %d", size, firstbyte, lastbyte);
                return;
        }
 
@@ -485,7 +620,7 @@ void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg,
 
        /* Check for message routing */
        if (!CM_IsEmpty(msg, eDestination)) {
-               if (strcasecmp(msg->cm_fields[eDestination], config.c_nodename)) {
+               if (strcasecmp(msg->cm_fields[eDestination], CtdlGetConfigStr("c_nodename"))) {
 
                        /* route the message */
                        Buf = NewStrBufPlain(CM_KEY(msg,eDestination));
@@ -512,14 +647,14 @@ void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg,
                                         time(NULL),
                                         rand()
                                );
-                               QN_syslog(LOG_DEBUG, "Appending to %s\n", filename);
+                               QN_syslog(LOG_DEBUG, "Appending to %s", filename);
                                fp = fopen(filename, "ab");
                                if (fp != NULL) {
                                        fwrite(sermsg.ser, sermsg.len, 1, fp);
                                        fclose(fp);
                                }
                                else {
-                                       QN_syslog(LOG_ERR, "%s: %s\n", filename, strerror(errno));
+                                       QN_syslog(LOG_ERR, "%s: %s", filename, strerror(errno));
                                }
                                free(sermsg.ser);
                                CM_Free(msg);
@@ -530,10 +665,9 @@ void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg,
                        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;
 
                        }
@@ -570,12 +704,11 @@ void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg,
        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");
+                       QNM_syslog(LOG_DEBUG, "Bouncing message due to invalid recipient address.");
                        return;
                }
                strcpy(target_room, "");        /* no target room if mail */
@@ -653,12 +786,12 @@ void network_process_file(char *filename,
 
        fp = fopen(filename, "rb");
        if (fp == NULL) {
-               QN_syslog(LOG_CRIT, "Error opening %s: %s\n", filename, strerror(errno));
+               QN_syslog(LOG_CRIT, "Error opening %s: %s", filename, strerror(errno));
                return;
        }
 
        fseek(fp, 0L, SEEK_END);
-       QN_syslog(LOG_INFO, "network: processing %ld bytes from %s\n", ftell(fp), filename);
+       QN_syslog(LOG_INFO, "network: processing %ld bytes from %s", ftell(fp), filename);
        rewind(fp);
 
        /* Look for messages in the data stream and break them out */
@@ -693,10 +826,7 @@ void network_process_file(char *filename,
        }
 
        if (nMessages > 0)
-               QN_syslog(LOG_INFO,
-                         "network: processed %d messages in %s\n",
-                         nMessages,
-                         filename);
+               QN_syslog(LOG_INFO, "network: processed %d messages in %s", nMessages, filename);
 
        fclose(fp);
        unlink(filename);
@@ -724,11 +854,11 @@ void network_do_spoolin(HashList *working_ignetcfg, HashList *the_netmap, int *n
         */
        if (stat(ctdl_netin_dir, &statbuf)) return;
        if (statbuf.st_mtime == last_spoolin_mtime) {
-               QNM_syslog(LOG_DEBUG, "network: nothing in inbound queue\n");
+               QNM_syslog(LOG_DEBUG, "network: nothing in inbound queue");
                return;
        }
        last_spoolin_mtime = statbuf.st_mtime;
-       QNM_syslog(LOG_DEBUG, "network: processing inbound queue\n");
+       QNM_syslog(LOG_DEBUG, "network: processing inbound queue");
 
        /*
         * Ok, there's something interesting in there, so scan it.
@@ -896,13 +1026,10 @@ void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netm
                         ctdl_netout_dir,
                         ChrPtr(NextHop));
 
-               QN_syslog(LOG_DEBUG, "Consolidate %s to %s\n", filename, ChrPtr(NextHop));
+               QN_syslog(LOG_DEBUG, "Consolidate %s to %s", filename, ChrPtr(NextHop));
                if (CtdlNetworkTalkingTo(SKEY(NextHop), NTT_CHECK)) {
                        nFailed++;
-                       QN_syslog(LOG_DEBUG,
-                                 "Currently online with %s - skipping for now\n",
-                                 ChrPtr(NextHop)
-                               );
+                       QN_syslog(LOG_DEBUG, "Currently online with %s - skipping for now", ChrPtr(NextHop));
                }
                else {
                        size_t dsize;
@@ -915,9 +1042,9 @@ void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netm
                        if (infd == -1) {
                                nFailed++;
                                QN_syslog(LOG_ERR,
-                                         "failed to open %s for reading due to %s; skipping.\n",
+                                         "failed to open %s for reading due to %s; skipping.",
                                          filename, strerror(errno)
-                                       );
+                               );
                                CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
                                continue;                               
                        }
@@ -934,9 +1061,9 @@ void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netm
                        if (outfd == -1) {
                                nFailed++;
                                QN_syslog(LOG_ERR,
-                                         "failed to open %s for reading due to %s; skipping.\n",
+                                         "failed to open %s for reading due to %s; skipping.",
                                          spooloutfilename, strerror(errno)
-                                       );
+                               );
                                close(infd);
                                CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
                                continue;
@@ -959,18 +1086,11 @@ void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netm
                        do {} while ((FileMoveChunked(&FDIO, &err) > 0) && (err == NULL));
                        if (err == NULL) {
                                unlink(filename);
-                               QN_syslog(LOG_DEBUG,
-                                         "Spoolfile %s now "SIZE_T_FMT" k\n",
-                                         spooloutfilename,
-                                         (dsize + fsize)/1024
-                                       );                              
+                               QN_syslog(LOG_DEBUG, "Spoolfile %s now "SIZE_T_FMT" KB", spooloutfilename, (dsize + fsize)/1024);
                        }
                        else {
                                nFailed++;
-                               QN_syslog(LOG_ERR,
-                                         "failed to append to %s [%s]; rolling back..\n",
-                                         spooloutfilename, strerror(errno)
-                                       );
+                               QN_syslog(LOG_ERR, "failed to append to %s [%s]; rolling back..", spooloutfilename, strerror(errno));
                                /* whoops partial append?? truncate spooloutfilename again! */
                                ftruncate(outfd, dsize);
                        }
@@ -984,10 +1104,7 @@ void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netm
 
        if (nFailed > 0) {
                FreeStrBuf(&NextHop);
-               QN_syslog(LOG_INFO,
-                         "skipping Spoolcleanup because of %d files unprocessed.\n",
-                         nFailed
-                       );
+               QN_syslog(LOG_INFO, "skipping Spoolcleanup because of %d files unprocessed.", nFailed);
 
                return;
        }