citadel/modules/network/serv_netspool.c

   1 /*
   2  * This module handles shared rooms, inter-Citadel mail, and outbound
   3  * mailing list processing.
   4  *
   5  * Copyright (c) 2000-2017 by the citadel.org team
   6  *
   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.
   9  *
  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.
  14  *
  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.
  21  *
  22  */
  23
  24 /*
  25  * Duration of time (in seconds) after which pending list subscribe/unsubscribe
  26  * requests that have not been confirmed will be deleted.
  27  */
  28 #define EXP     259200  /* three days */
  29
  30 #include "sysdep.h"
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33 #include <stdio.h>
  34 #include <fcntl.h>
  35 #include <ctype.h>
  36 #include <signal.h>
  37 #include <pwd.h>
  38 #include <errno.h>
  39 #include <sys/stat.h>
  40 #include <sys/types.h>
  41 #include <dirent.h>
  42 #if TIME_WITH_SYS_TIME
  43 # include <sys/time.h>
  44 # include <time.h>
  45 #else
  46 # if HAVE_SYS_TIME_H
  47 #  include <sys/time.h>
  48 # else
  49 #  include <time.h>
  50 # endif
  51 #endif
  52 #ifdef HAVE_SYSCALL_H
  53 # include <syscall.h>
  54 #else
  55 # if HAVE_SYS_SYSCALL_H
  56 #  include <sys/syscall.h>
  57 # endif
  58 #endif
  59
  60 #include <sys/wait.h>
  61 #include <string.h>
  62 #include <limits.h>
  63 #include <assert.h>
  64 #include <libcitadel.h>
  65 #include "citadel.h"
  66 #include "server.h"
  67 #include "citserver.h"
  68 #include "support.h"
  69 #include "config.h"
  70 #include "user_ops.h"
  71 #include "database.h"
  72 #include "msgbase.h"
  73 #include "internet_addressing.h"
  74 #include "serv_network.h"
  75 #include "clientsocket.h"
  76 #include "citadel_dirs.h"
  77 #include "threads.h"
  78 #include "context.h"
  79
  80 #include "ctdl_module.h"
  81
  82 #include "netspool.h"
  83 #include "netmail.h"
  84
  85
  86 #ifndef DT_UNKNOWN
  87 #define DT_UNKNOWN     0
  88 #define DT_DIR         4
  89 #define DT_REG         8
  90 #define DT_LNK         10
  91
  92 #define IFTODT(mode)   (((mode) & 0170000) >> 12)
  93 #define DTTOIF(dirtype)        ((dirtype) << 12)
  94 #endif
  95
  96
  97 /*
  98  * Bounce a message back to the sender
  99  */
 100 void network_bounce(struct CtdlMessage **pMsg, char *reason)
 101 {
 102         char buf[SIZ];
 103         char bouncesource[SIZ];
 104         char recipient[SIZ];
 105         recptypes *valid = NULL;
 106         char force_room[ROOMNAMELEN];
 107         static int serialnum = 0;
 108         long len;
 109         struct CtdlMessage *msg = *pMsg;
 110         *pMsg = NULL;
 111         syslog(LOG_DEBUG, "netspool: entering network_bounce()");
 112
 113         if (msg == NULL) return;
 114
 115         snprintf(bouncesource, sizeof bouncesource, "%s@%s", BOUNCESOURCE, CtdlGetConfigStr("c_nodename"));
 116
 117         /*
 118          * Give it a fresh message ID
 119          */
 120         len = snprintf(buf, sizeof(buf),
 121                        "%ld.%04lx.%04x@%s",
 122                        (long)time(NULL),
 123                        (long)getpid(),
 124                        ++serialnum,
 125                        CtdlGetConfigStr("c_fqdn"));
 126
 127         CM_SetField(msg, emessageId, buf, len);
 128
 129         /*
 130          * FIXME ... right now we're just sending a bounce; we really want to
 131          * include the text of the bounced message.
 132          */
 133         if (!IsEmptyStr(reason)) {
 134                 CM_SetField(msg, eMesageText, reason, strlen(reason));
 135         }
 136         msg->cm_format_type = 0;
 137
 138         /*
 139          * Turn the message around
 140          */
 141         CM_FlushField(msg, eRecipient);
 142         CM_FlushField(msg, eDestination);
 143
 144         len = snprintf(recipient, sizeof(recipient), "%s@%s",
 145                        msg->cm_fields[eAuthor],
 146                        msg->cm_fields[eNodeName]);
 147
 148         CM_SetField(msg, eAuthor, HKEY(BOUNCESOURCE));
 149         CM_SetField(msg, eNodeName, CtdlGetConfigStr("c_nodename"), strlen(CtdlGetConfigStr("c_nodename")));
 150         CM_SetField(msg, eMsgSubject, HKEY("Delivery Status Notification (Failure)"));
 151
 152         Netmap_AddMe(msg, HKEY("unknown_user"));
 153
 154         /* Now submit the message */
 155         valid = validate_recipients(recipient, NULL, 0);
 156         if (valid != NULL) if (valid->num_error != 0) {
 157                 free_recipients(valid);
 158                 valid = NULL;
 159         }
 160         if ( (valid == NULL) || (!strcasecmp(recipient, bouncesource)) ) {
 161                 strcpy(force_room, CtdlGetConfigStr("c_aideroom"));
 162         }
 163         else {
 164                 strcpy(force_room, "");
 165         }
 166         if ( (valid == NULL) && IsEmptyStr(force_room) ) {
 167                 strcpy(force_room, CtdlGetConfigStr("c_aideroom"));
 168         }
 169         CtdlSubmitMsg(msg, valid, force_room, 0);
 170
 171         /* Clean up */
 172         if (valid != NULL) free_recipients(valid);
 173         CM_Free(msg);
 174         syslog(LOG_DEBUG, "netspool: leaving network_bounce()");
 175 }
 176
 177
 178 void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 179 {
 180         RoomNetCfgLine *nptr;
 181         nptr = (RoomNetCfgLine *)
 182                 malloc(sizeof(RoomNetCfgLine));
 183         memset(nptr, 0, sizeof(RoomNetCfgLine));
 184         OneRNCFG->lastsent = extract_long(LinePos, 0);
 185         OneRNCFG->NetConfigs[ThisOne->C] = nptr;
 186 }
 187
 188 void ParseRoomAlias(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 189 {
 190         if (rncfg->Sender != NULL)
 191                 return;
 192
 193         ParseGeneric(ThisOne, Line, LinePos, rncfg);
 194         rncfg->Sender = NewStrBufDup(rncfg->NetConfigs[roommailalias]->Value[0]);
 195 }
 196
 197 void ParseSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 198 {
 199         if (time(NULL) - extract_long(LinePos, 3) > EXP)
 200                 return; /* expired subscription... */
 201
 202         ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
 203 }
 204 void ParseUnSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 205 {
 206         if (time(NULL) - extract_long(LinePos, 2) > EXP)
 207                 return; /* expired subscription... */
 208
 209         ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
 210 }
 211
 212
 213 void SerializeLastSent(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 214 {
 215         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 216         StrBufAppendPrintf(OutputBuffer, "|%ld\n", RNCfg->lastsent);
 217 }
 218
 219 void DeleteLastSent(const CfgLineType *ThisOne, RoomNetCfgLine **data)
 220 {
 221         free(*data);
 222         *data = NULL;
 223 }
 224
 225 static const RoomNetCfg SpoolCfgs [4] = {
 226         listrecp,
 227         digestrecp,
 228         participate,
 229         ignet_push_share
 230 };
 231
 232 static const long SpoolCfgsCopyN [4] = {
 233         1, 1, 1, 2
 234 };
 235
 236 int HaveSpoolConfig(OneRoomNetCfg* RNCfg)
 237 {
 238         int i;
 239         int interested = 0;
 240         for (i=0; i < 4; i++) if (RNCfg->NetConfigs[SpoolCfgs[i]] == NULL) interested = 1;
 241         return interested;
 242 }
 243
 244 void Netmap_AddMe(struct CtdlMessage *msg, const char *defl, long defllen)
 245 {
 246         long node_len;
 247         char buf[SIZ];
 248
 249         /* prepend our node to the path */
 250         if (CM_IsEmpty(msg, eMessagePath)) {
 251                 CM_SetField(msg, eMessagePath, defl, defllen);
 252         }
 253         node_len = strlen(CtdlGetConfigStr("c_nodename"));
 254         if (node_len >= SIZ)
 255                 node_len = SIZ - 1;
 256         memcpy(buf, CtdlGetConfigStr("c_nodename"), node_len);
 257         buf[node_len] = '!';
 258         buf[node_len + 1] = '\0';
 259         CM_PrependToField(msg, eMessagePath, buf, node_len + 1);
 260 }
 261
 262 void InspectQueuedRoom(SpoolControl **pSC,
 263                        RoomProcList *room_to_spool,
 264                        HashList *working_ignetcfg,
 265                        HashList *the_netmap)
 266 {
 267         SpoolControl *sc;
 268         int i = 0;
 269
 270         syslog(LOG_INFO, "netspool: InspectQueuedRoom(%s)", room_to_spool->name);
 271
 272         sc = (SpoolControl*)malloc(sizeof(SpoolControl));
 273         memset(sc, 0, sizeof(SpoolControl));
 274         sc->working_ignetcfg = working_ignetcfg;
 275         sc->the_netmap = the_netmap;
 276
 277         /*
 278          * If the room doesn't exist, don't try to perform its networking tasks.
 279          * Normally this should never happen, but once in a while maybe a room gets
 280          * queued for networking and then deleted before it can happen.
 281          */
 282         if (CtdlGetRoom(&sc->room, room_to_spool->name) != 0) {
 283                 syslog(LOG_INFO, "netspool: ERROR; cannot load <%s>", room_to_spool->name);
 284                 free(sc);
 285                 return;
 286         }
 287
 288         assert(sc->RNCfg == NULL);      // checking to make sure we cleared it from last time
 289
 290         sc->RNCfg = CtdlGetNetCfgForRoom(sc->room.QRnumber);
 291
 292         syslog(LOG_DEBUG, "netspool: room <%s> highest=%ld lastsent=%ld", room_to_spool->name, sc->room.QRhighest, sc->RNCfg->lastsent);
 293         if ( (!HaveSpoolConfig(sc->RNCfg)) || (sc->room.QRhighest <= sc->RNCfg->lastsent) )
 294         {
 295                 // There is nothing to send from this room.
 296                 syslog(LOG_DEBUG, "netspool: nothing to do for <%s>", room_to_spool->name);
 297                 FreeRoomNetworkStruct(&sc->RNCfg);
 298                 sc->RNCfg = NULL;
 299                 free(sc);
 300                 return;
 301         }
 302
 303         sc->lastsent = sc->RNCfg->lastsent;
 304         room_to_spool->lastsent = sc->lastsent;
 305
 306         /* Now lets remember whats needed for the actual work... */
 307
 308         for (i=0; i < 4; i++)
 309         {
 310                 aggregate_recipients(&sc->Users[SpoolCfgs[i]], SpoolCfgs[i], sc->RNCfg, SpoolCfgsCopyN[i]);
 311         }
 312
 313         if (StrLength(sc->RNCfg->Sender) > 0) {
 314                 sc->Users[roommailalias] = NewStrBufDup(sc->RNCfg->Sender);
 315         }
 316
 317         sc->next = *pSC;
 318         *pSC = sc;
 319
 320         FreeRoomNetworkStruct(&sc->RNCfg);      // done with this for now, we'll grab it again next time
 321         sc->RNCfg = NULL;
 322 }
 323
 324
 325 void CalcListID(SpoolControl *sc)
 326 {
 327         StrBuf *RoomName;
 328         struct CitContext *CCC = CC;
 329 #define MAX_LISTIDLENGTH 150
 330
 331         // Load the room banner as the list description
 332         struct CtdlMessage *msg = CtdlFetchMessage(sc->room.msgnum_info, 1, 1);
 333         if (msg != NULL) {
 334                 CC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
 335                 CtdlOutputPreLoadedMsg(msg, MT_CITADEL, HEADERS_NONE, 0, 0, 0);
 336                 CM_Free(msg);
 337                 sc->RoomInfo = CC->redirect_buffer;
 338                 CC->redirect_buffer = NULL;
 339         }
 340         else {
 341                 sc->RoomInfo = NewStrBufPlain(NULL, SIZ);
 342         }
 343
 344         // Calculate the List ID
 345         sc->ListID = NewStrBufPlain(NULL, 1024);
 346         if (StrLength(sc->RoomInfo) > 0)
 347         {
 348                 const char *Pos = NULL;
 349                 StrBufSipLine(sc->ListID, sc->RoomInfo, &Pos);
 350
 351                 if (StrLength(sc->ListID) > MAX_LISTIDLENGTH)
 352                 {
 353                         StrBufCutAt(sc->ListID, MAX_LISTIDLENGTH, NULL);
 354                         StrBufAppendBufPlain(sc->ListID, HKEY("..."), 0);
 355                 }
 356                 StrBufAsciify(sc->ListID, ' ');
 357         }
 358         else
 359         {
 360                 StrBufAppendBufPlain(sc->ListID, CCC->room.QRname, -1, 0);
 361         }
 362
 363         StrBufAppendBufPlain(sc->ListID, HKEY("<"), 0);
 364         RoomName = NewStrBufPlain (sc->room.QRname, -1);
 365         StrBufAsciify(RoomName, '_');
 366         StrBufReplaceChars(RoomName, ' ', '_');
 367
 368         if (StrLength(sc->Users[roommailalias]) > 0)
 369         {
 370                 long Pos;
 371                 const char *AtPos;
 372
 373                 Pos = StrLength(sc->ListID);
 374                 StrBufAppendBuf(sc->ListID, sc->Users[roommailalias], 0);
 375                 AtPos = strchr(ChrPtr(sc->ListID) + Pos, '@');
 376
 377                 if (AtPos != NULL)
 378                 {
 379                         StrBufPeek(sc->ListID, AtPos, 0, '.');
 380                 }
 381         }
 382         else
 383         {
 384                 StrBufAppendBufPlain(sc->ListID, HKEY("room_"), 0);
 385                 StrBufAppendBuf(sc->ListID, RoomName, 0);
 386                 StrBufAppendBufPlain(sc->ListID, HKEY("."), 0);
 387                 StrBufAppendBufPlain(sc->ListID, CtdlGetConfigStr("c_fqdn"), -1, 0);
 388                 /*
 389                  * this used to be:
 390                  * roomname <Room-Number.list-id.fqdn>
 391                  * according to rfc2919.txt it only has to be a uniq identifier
 392                  * under the domain of the system;
 393                  * in general MUAs use it to calculate the reply address nowadays.
 394                  */
 395         }
 396         StrBufAppendBufPlain(sc->ListID, HKEY(">"), 0);
 397
 398         if (StrLength(sc->Users[roommailalias]) == 0)
 399         {
 400                 sc->Users[roommailalias] = NewStrBuf();
 401
 402                 StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("room_"), 0);
 403                 StrBufAppendBuf(sc->Users[roommailalias], RoomName, 0);
 404                 StrBufAppendBufPlain(sc->Users[roommailalias], HKEY("@"), 0);
 405                 StrBufAppendBufPlain(sc->Users[roommailalias], CtdlGetConfigStr("c_fqdn"), -1, 0);
 406
 407                 StrBufLowerCase(sc->Users[roommailalias]);
 408         }
 409
 410         FreeStrBuf(&RoomName);
 411 }
 412
 413
 414 /*
 415  * Batch up and send all outbound traffic from the current room
 416  */
 417 void network_spoolout_room(SpoolControl *sc)
 418 {
 419         struct CitContext *CCC = CC;
 420         char buf[SIZ];
 421         int i;
 422         long lastsent;
 423
 424         /*
 425          * If the room doesn't exist, don't try to perform its networking tasks.
 426          * Normally this should never happen, but once in a while maybe a room gets
 427          * queued for networking and then deleted before it can happen.
 428          */
 429         memcpy (&CCC->room, &sc->room, sizeof(ctdlroom));
 430
 431         syslog(LOG_INFO, "netspool: network_spoolout_room(room=%s, lastsent=%ld)", CCC->room.QRname, sc->lastsent);
 432
 433         CalcListID(sc);
 434
 435         /* remember where we started... */
 436         lastsent = sc->lastsent;
 437
 438         /* Fetch the messages we ought to send & prepare them. */
 439         CtdlForEachMessage(MSGS_GT, sc->lastsent, NULL, NULL, NULL, network_spool_msg, sc);
 440
 441         if (StrLength(sc->Users[roommailalias]) > 0)
 442         {
 443                 long len;
 444                 len = StrLength(sc->Users[roommailalias]);
 445                 if (len + 1 > sizeof(buf))
 446                         len = sizeof(buf) - 1;
 447                 memcpy(buf, ChrPtr(sc->Users[roommailalias]), len);
 448                 buf[len] = '\0';
 449         }
 450         else
 451         {
 452                 snprintf(buf, sizeof buf, "room_%s@%s", CCC->room.QRname, CtdlGetConfigStr("c_fqdn"));
 453         }
 454
 455         for (i=0; buf[i]; ++i) {
 456                 buf[i] = tolower(buf[i]);
 457                 if (isspace(buf[i])) buf[i] = '_';
 458         }
 459
 460
 461         /* If we wrote a digest, deliver it and then close it */
 462         if ( (sc->Users[digestrecp] != NULL) && (sc->digestfp != NULL) )
 463         {
 464                 fprintf(sc->digestfp,
 465                         " ------------------------------------------------------------------------------\n"
 466                         "You are subscribed to the '%s' list.\n"
 467                         "To post to the list: %s\n",
 468                         CCC->room.QRname, buf
 469                 );
 470                 network_deliver_digest(sc);     /* deliver */
 471                 fclose(sc->digestfp);
 472                 sc->digestfp = NULL;
 473                 remove_digest_file(&sc->room);
 474         }
 475
 476         /* Now rewrite the netconfig */
 477         syslog(LOG_DEBUG, "netspool: lastsent was %ld , now it is %ld", lastsent, sc->lastsent);
 478         if (sc->lastsent != lastsent)
 479         {
 480                 OneRoomNetCfg *r;
 481
 482                 begin_critical_section(S_NETCONFIGS);
 483                 r = CtdlGetNetCfgForRoom(sc->room.QRnumber);
 484                 r->lastsent = sc->lastsent;
 485                 SaveRoomNetConfigFile(r, sc->room.QRnumber);
 486                 FreeRoomNetworkStruct(&r);
 487                 end_critical_section(S_NETCONFIGS);
 488         }
 489 }
 490
 491
 492 /*
 493  * Check the use table.  This is a list of messages which have recently
 494  * arrived on the system.  It is maintained and queried to prevent the same
 495  * message from being entered into the database multiple times if it happens
 496  * to arrive multiple times by accident.
 497  */
 498 int network_usetable(struct CtdlMessage *msg)
 499 {
 500         StrBuf *msgid;
 501
 502         /* Bail out if we can't generate a message ID */
 503         if ((msg == NULL) || CM_IsEmpty(msg, emessageId))
 504         {
 505                 return(0);
 506         }
 507
 508         /* Generate the message ID */
 509         msgid = NewStrBufPlain(CM_KEY(msg, emessageId));
 510         if (haschar(ChrPtr(msgid), '@') == 0) {
 511                 StrBufAppendBufPlain(msgid, HKEY("@"), 0);
 512                 if (!CM_IsEmpty(msg, eNodeName)) {
 513                         StrBufAppendBufPlain(msgid, CM_KEY(msg, eNodeName), 0);
 514                 }
 515                 else {
 516                         FreeStrBuf(&msgid);
 517                         return(0);
 518                 }
 519         }
 520         if (CheckIfAlreadySeen(msgid)) {
 521                 FreeStrBuf(&msgid);
 522                 return(1);
 523         }
 524         FreeStrBuf(&msgid);
 525
 526         return(0);
 527 }
 528
 529
 530 /*
 531  * Step 1: consolidate files in the outbound queue into one file per neighbor node
 532  * Step 2: delete any files in the outbound queue that were for neighbors who no longer exist.
 533  */
 534 void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netmap)
 535 {
 536         IOBuffer IOB;
 537         FDIOBuffer FDIO;
 538         int d_namelen;
 539         DIR *dp;
 540         struct dirent *filedir_entry;
 541         const char *pch;
 542         char spooloutfilename[PATH_MAX];
 543         char filename[PATH_MAX];
 544         const StrBuf *nexthop;
 545         StrBuf *NextHop;
 546         int i;
 547         struct stat statbuf;
 548         int nFailed = 0;
 549         int d_type = 0;
 550
 551         /* Step 1: consolidate files in the outbound queue into one file per neighbor node */
 552
 553         dp = opendir(ctdl_netout_dir);
 554         if (dp == NULL) {
 555                 return;
 556         }
 557
 558         NextHop = NewStrBuf();
 559         memset(&IOB, 0, sizeof(IOBuffer));
 560         memset(&FDIO, 0, sizeof(FDIOBuffer));
 561         FDIO.IOB = &IOB;
 562
 563         while ( (filedir_entry = readdir(dp)) , (filedir_entry != NULL))
 564         {
 565 #ifdef _DIRENT_HAVE_D_NAMLEN
 566                 d_namelen = filedir_entry->d_namlen;
 567
 568 #else
 569                 d_namelen = strlen(filedir_entry->d_name);
 570 #endif
 571
 572 #ifdef _DIRENT_HAVE_D_TYPE
 573                 d_type = filedir_entry->d_type;
 574 #else
 575                 d_type = DT_UNKNOWN;
 576 #endif
 577                 if (d_type == DT_DIR)
 578                         continue;
 579
 580                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 581                         continue; /* Ignore backup files... */
 582
 583                 if ((d_namelen == 1) &&
 584                     (filedir_entry->d_name[0] == '.'))
 585                         continue;
 586
 587                 if ((d_namelen == 2) &&
 588                     (filedir_entry->d_name[0] == '.') &&
 589                     (filedir_entry->d_name[1] == '.'))
 590                         continue;
 591
 592                 pch = strchr(filedir_entry->d_name, '@');
 593                 if (pch == NULL)
 594                         continue;
 595
 596                 snprintf(filename,
 597                          sizeof filename,
 598                          "%s/%s",
 599                          ctdl_netout_dir,
 600                          filedir_entry->d_name);
 601
 602                 StrBufPlain(NextHop,
 603                             filedir_entry->d_name,
 604                             pch - filedir_entry->d_name);
 605
 606                 snprintf(spooloutfilename,
 607                          sizeof spooloutfilename,
 608                          "%s/%s",
 609                          ctdl_netout_dir,
 610                          ChrPtr(NextHop));
 611
 612                 syslog(LOG_DEBUG, "netspool: consolidate %s to %s", filename, ChrPtr(NextHop));
 613                 if (CtdlNetworkTalkingTo(SKEY(NextHop), NTT_CHECK)) {
 614                         nFailed++;
 615                         syslog(LOG_DEBUG, "netspool: currently online with %s - skipping for now", ChrPtr(NextHop));
 616                 }
 617                 else {
 618                         size_t dsize;
 619                         size_t fsize;
 620                         int infd, outfd;
 621                         const char *err = NULL;
 622                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_ADD);
 623
 624                         infd = open(filename, O_RDONLY);
 625                         if (infd == -1) {
 626                                 nFailed++;
 627                                 syslog(LOG_ERR, "%s: %s", filename, strerror(errno));
 628                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 629                                 continue;
 630                         }
 631
 632                         outfd = open(spooloutfilename,
 633                                   O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
 634                                   S_IRUSR|S_IWUSR);
 635                         if (outfd == -1)
 636                         {
 637                                 outfd = open(spooloutfilename,
 638                                              O_EXCL|O_NONBLOCK|O_WRONLY,
 639                                              S_IRUSR | S_IWUSR);
 640                         }
 641                         if (outfd == -1) {
 642                                 nFailed++;
 643                                 syslog(LOG_ERR, "%s: %s", spooloutfilename, strerror(errno));
 644                                 close(infd);
 645                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 646                                 continue;
 647                         }
 648
 649                         dsize = lseek(outfd, 0, SEEK_END);
 650                         lseek(outfd, -dsize, SEEK_SET);
 651
 652                         fstat(infd, &statbuf);
 653                         fsize = statbuf.st_size;
 654                         IOB.fd = infd;
 655                         FDIOBufferInit(&FDIO, &IOB, outfd, fsize + dsize);
 656                         FDIO.ChunkSendRemain = fsize;
 657                         FDIO.TotalSentAlready = dsize;
 658                         err = NULL;
 659                         errno = 0;
 660                         do {} while ((FileMoveChunked(&FDIO, &err) > 0) && (err == NULL));
 661                         if (err == NULL) {
 662                                 unlink(filename);
 663                                 syslog(LOG_DEBUG, "netspool: spoolfile %s now "SIZE_T_FMT" KB", spooloutfilename, (dsize + fsize)/1024);
 664                         }
 665                         else {
 666                                 nFailed++;
 667                                 syslog(LOG_ERR, "netspool: failed to append to %s [%s]; rolling back..", spooloutfilename, strerror(errno));
 668                                 /* whoops partial append?? truncate spooloutfilename again! */
 669                                 ftruncate(outfd, dsize);
 670                         }
 671                         FDIOBufferDelete(&FDIO);
 672                         close(infd);
 673                         close(outfd);
 674                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 675                 }
 676         }
 677         closedir(dp);
 678
 679         if (nFailed > 0) {
 680                 FreeStrBuf(&NextHop);
 681                 syslog(LOG_INFO, "netspool: skipping Spoolcleanup because of %d files unprocessed.", nFailed);
 682                 return;
 683         }
 684
 685         /* Step 2: delete any files in the outbound queue that were for neighbors who no longer exist */
 686         dp = opendir(ctdl_netout_dir);
 687         if (dp == NULL) {
 688                 FreeStrBuf(&NextHop);
 689                 return;
 690         }
 691
 692         while ( (filedir_entry = readdir(dp)) , (filedir_entry != NULL))
 693         {
 694 #ifdef _DIRENT_HAVE_D_NAMLEN
 695                 d_namelen = filedir_entry->d_namlen;
 696
 697 #else
 698                 d_namelen = strlen(filedir_entry->d_name);
 699 #endif
 700
 701 #ifdef _DIRENT_HAVE_D_TYPE
 702                 d_type = filedir_entry->d_type;
 703 #else
 704                 d_type = DT_UNKNOWN;
 705 #endif
 706                 if (d_type == DT_DIR)
 707                         continue;
 708
 709                 if ((d_namelen == 1) &&
 710                     (filedir_entry->d_name[0] == '.'))
 711                         continue;
 712
 713                 if ((d_namelen == 2) &&
 714                     (filedir_entry->d_name[0] == '.') &&
 715                     (filedir_entry->d_name[1] == '.'))
 716                         continue;
 717
 718                 pch = strchr(filedir_entry->d_name, '@');
 719                 if (pch == NULL) /* no @ in name? consolidated file. */
 720                         continue;
 721
 722                 StrBufPlain(NextHop,
 723                             filedir_entry->d_name,
 724                             pch - filedir_entry->d_name);
 725
 726                 snprintf(filename,
 727                         sizeof filename,
 728                         "%s/%s",
 729                         ctdl_netout_dir,
 730                         filedir_entry->d_name
 731                 );
 732
 733                 i = CtdlIsValidNode(&nexthop,
 734                                     NULL,
 735                                     NextHop,
 736                                     working_ignetcfg,
 737                                     the_netmap);
 738
 739                 if ( (i != 0) || (StrLength(nexthop) > 0) ) {
 740                         unlink(filename);
 741                 }
 742         }
 743         FreeStrBuf(&NextHop);
 744         closedir(dp);
 745 }
 746
 747 void free_spoolcontrol_struct(SpoolControl **sc)
 748 {
 749         free_spoolcontrol_struct_members(*sc);
 750         free(*sc);
 751         *sc = NULL;
 752 }
 753
 754 void free_spoolcontrol_struct_members(SpoolControl *sc)
 755 {
 756         int i;
 757         FreeStrBuf(&sc->RoomInfo);
 758         FreeStrBuf(&sc->ListID);
 759         for (i = 0; i < maxRoomNetCfg; i++)
 760                 FreeStrBuf(&sc->Users[i]);
 761 }
 762
 763
 764 /*
 765  * It's ok if these directories already exist.  Just fail silently.
 766  */
 767 void create_spool_dirs(void) {
 768         if ((mkdir(ctdl_spool_dir, 0700) != 0) && (errno != EEXIST))
 769                 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_spool_dir, strerror(errno));
 770         if (chown(ctdl_spool_dir, CTDLUID, (-1)) != 0)
 771                 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_spool_dir, strerror(errno));
 772         if ((mkdir(ctdl_netin_dir, 0700) != 0) && (errno != EEXIST))
 773                 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_netin_dir, strerror(errno));
 774         if (chown(ctdl_netin_dir, CTDLUID, (-1)) != 0)
 775                 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_netin_dir, strerror(errno));
 776         if ((mkdir(ctdl_nettmp_dir, 0700) != 0) && (errno != EEXIST))
 777                 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 778         if (chown(ctdl_nettmp_dir, CTDLUID, (-1)) != 0)
 779                 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 780         if ((mkdir(ctdl_netout_dir, 0700) != 0) && (errno != EEXIST))
 781                 syslog(LOG_EMERG, "netspool: unable to create directory [%s]: %s", ctdl_netout_dir, strerror(errno));
 782         if (chown(ctdl_netout_dir, CTDLUID, (-1)) != 0)
 783                 syslog(LOG_EMERG, "netspool: unable to set the access rights for [%s]: %s", ctdl_netout_dir, strerror(errno));
 784 }
 785
 786 /*
 787  * Module entry point
 788  */
 789 CTDL_MODULE_INIT(network_spool)
 790 {
 791         if (!threading)
 792         {
 793                 CtdlREGISTERRoomCfgType(subpending,       ParseSubPendingLine,   0, 5, SerializeGeneric,  DeleteGenericCfgLine); /// todo: move this to mailinglist manager
 794                 CtdlREGISTERRoomCfgType(unsubpending,     ParseUnSubPendingLine, 0, 4, SerializeGeneric,  DeleteGenericCfgLine); /// todo: move this to mailinglist manager
 795                 CtdlREGISTERRoomCfgType(lastsent,         ParseLastSent,         1, 1, SerializeLastSent, DeleteLastSent);
 796                 CtdlREGISTERRoomCfgType(ignet_push_share, ParseGeneric,          0, 2, SerializeGeneric,  DeleteGenericCfgLine); // [remotenode|remoteroomname (optional)]// todo: move this to the ignet client
 797                 CtdlREGISTERRoomCfgType(listrecp,         ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 798                 CtdlREGISTERRoomCfgType(digestrecp,       ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 799                 CtdlREGISTERRoomCfgType(participate,      ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 800                 CtdlREGISTERRoomCfgType(roommailalias,    ParseRoomAlias,        0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 801
 802                 create_spool_dirs();
 803 //////todo              CtdlRegisterCleanupHook(destroy_network_queue_room);
 804         }
 805         return "network_spool";
 806 }