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) 2000-2012 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 <libcitadel.h>
  64 #include "citadel.h"
  65 #include "server.h"
  66 #include "citserver.h"
  67 #include "support.h"
  68 #include "config.h"
  69 #include "user_ops.h"
  70 #include "database.h"
  71 #include "msgbase.h"
  72 #include "internet_addressing.h"
  73 #include "serv_network.h"
  74 #include "clientsocket.h"
  75 #include "file_ops.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 void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
  98 {
  99         rncfg->lastsent = extract_long(LinePos, 0);
 100 }
 101 void ParseIgnetPushShare(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 102 {
 103 /*
 104         extract_token(nodename, LinePos, 0, '|', sizeof nodename);
 105         extract_token(roomname, LinePos, 1, '|', sizeof roomname);
 106         mptr = (maplist *) malloc(sizeof(maplist));
 107         mptr->next = rncfg->RNCfg->ignet_push_shares;
 108         strcpy(mptr->remote_nodename, nodename);
 109         strcpy(mptr->remote_roomname, roomname);
 110         rncfg->RNCfg->ignet_push_shares = mptr;
 111 */
 112 }
 113
 114 void ParseRoomAlias(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 115 {
 116 /*
 117         if (rncfg->RNCfg->sender != NULL)
 118                 continue; / * just one alowed... * /
 119         extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
 120         rncfg->RNCfg->sender = nptr;
 121 */
 122 }
 123
 124 void ParseSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 125 {
 126
 127         if (time(NULL) - extract_long(LinePos, 3) > EXP) {
 128                 //      skipthisline = 1;
 129         }
 130         else
 131         {
 132         }
 133
 134 }
 135 void ParseUnSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 136 {
 137         ///int skipthisline = 0;
 138         if (time(NULL) - extract_long(LinePos, 2) > EXP) {
 139                 //      skipthisline = 1;
 140         }
 141
 142 }
 143
 144
 145 void SerializeLastSent(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 146 {
 147         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 148         StrBufAppendPrintf(OutputBuffer, "|%ld\n", RNCfg->lastsent);
 149 }
 150
 151 void SerializeIgnetPushShare(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 152 {
 153         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 154 /*
 155                         StrBufAppendPrintf(Cfg, "ignet_push_share|%s", RNCfg->ignet_push_shares->remote_nodename);
 156                         if (!IsEmptyStr(RNCfg->ignet_push_shares->remote_roomname)) {
 157                                 StrBufAppendPrintf(Cfg, "|%s", RNCfg->ignet_push_shares->remote_roomname);
 158                         }
 159                         StrBufAppendPrintf(Cfg, "\n");
 160                         mptr = RNCfg->ignet_push_shares->next;
 161                         free(RNCfg->ignet_push_shares);
 162                         RNCfg->ignet_push_shares = mptr;
 163 */
 164         StrBufAppendBuf(OutputBuffer, data->Value, 0);
 165         StrBufAppendBufPlain(OutputBuffer, HKEY("\n"), 0);
 166 }
 167
 168
 169 /*
 170  * Batch up and send all outbound traffic from the current room
 171  */
 172 void network_spoolout_room(RoomProcList *room_to_spool,
 173                            HashList *working_ignetcfg,
 174                            HashList *the_netmap)
 175 {
 176         char buf[SIZ];
 177         char filename[PATH_MAX];
 178         SpoolControl *sc;
 179         int i;
 180
 181         /*
 182          * If the room doesn't exist, don't try to perform its networking tasks.
 183          * Normally this should never happen, but once in a while maybe a room gets
 184          * queued for networking and then deleted before it can happen.
 185          */
 186         if (CtdlGetRoom(&CC->room, room_to_spool->name) != 0) {
 187                 syslog(LOG_CRIT, "ERROR: cannot load <%s>\n", room_to_spool->name);
 188                 return;
 189         }
 190
 191         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
 192         begin_critical_section(S_NETCONFIGS);
 193
 194         /* Only do net processing for rooms that have netconfigs */
 195         if (!read_spoolcontrol_file(&sc, filename))
 196         {
 197                 end_critical_section(S_NETCONFIGS);
 198                 return;
 199         }
 200         syslog(LOG_INFO, "Networking started for <%s>\n", CC->room.QRname);
 201
 202         sc->working_ignetcfg = working_ignetcfg;
 203         sc->the_netmap = the_netmap;
 204
 205         /* If there are digest recipients, we have to build a digest */
 206         if (sc->RNCfg->NetConfigs[digestrecp] != NULL) {
 207                 sc->digestfp = tmpfile();
 208                 fprintf(sc->digestfp, "Content-type: text/plain\n\n");
 209         }
 210
 211         /* Do something useful */
 212         CtdlForEachMessage(MSGS_GT, sc->RNCfg->lastsent, NULL, NULL, NULL,
 213                 network_spool_msg, sc);
 214
 215         /* If we wrote a digest, deliver it and then close it */
 216         snprintf(buf, sizeof buf, "room_%s@%s",
 217                 CC->room.QRname, config.c_fqdn);
 218         for (i=0; buf[i]; ++i) {
 219                 buf[i] = tolower(buf[i]);
 220                 if (isspace(buf[i])) buf[i] = '_';
 221         }
 222         if (sc->digestfp != NULL) {
 223                 fprintf(sc->digestfp,   " -----------------------------------"
 224                                         "------------------------------------"
 225                                         "-------\n"
 226                                         "You are subscribed to the '%s' "
 227                                         "list.\n"
 228                                         "To post to the list: %s\n",
 229                                         CC->room.QRname, buf
 230                 );
 231                 network_deliver_digest(sc);     /* deliver and close */
 232         }
 233
 234         /* Now rewrite the config file */
 235         //// todo writenfree_spoolcontrol_file(&sc, filename);
 236         end_critical_section(S_NETCONFIGS);
 237 }
 238
 239 /*
 240  * Process a buffer containing a single message from a single file
 241  * from the inbound queue
 242  */
 243 void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 244 {
 245         struct CitContext *CCC = CC;
 246         StrBuf *Buf = NULL;
 247         struct CtdlMessage *msg = NULL;
 248         long pos;
 249         int field;
 250         struct recptypes *recp = NULL;
 251         char target_room[ROOMNAMELEN];
 252         struct ser_ret sermsg;
 253         char *oldpath = NULL;
 254         char filename[PATH_MAX];
 255         FILE *fp;
 256         const StrBuf *nexthop = NULL;
 257         unsigned char firstbyte;
 258         unsigned char lastbyte;
 259
 260         QN_syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes\n", size);
 261
 262         /* Validate just a little bit.  First byte should be FF and * last byte should be 00. */
 263         firstbyte = buffer[0];
 264         lastbyte = buffer[size-1];
 265         if ( (firstbyte != 255) || (lastbyte != 0) ) {
 266                 QN_syslog(LOG_ERR, "Corrupt message ignored.  Length=%ld, firstbyte = %d, lastbyte = %d\n",
 267                           size, firstbyte, lastbyte);
 268                 return;
 269         }
 270
 271         /* Set default target room to trash */
 272         strcpy(target_room, TWITROOM);
 273
 274         /* Load the message into memory */
 275         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
 276         memset(msg, 0, sizeof(struct CtdlMessage));
 277         msg->cm_magic = CTDLMESSAGE_MAGIC;
 278         msg->cm_anon_type = buffer[1];
 279         msg->cm_format_type = buffer[2];
 280
 281         for (pos = 3; pos < size; ++pos) {
 282                 field = buffer[pos];
 283                 msg->cm_fields[field] = strdup(&buffer[pos+1]);
 284                 pos = pos + strlen(&buffer[(int)pos]);
 285         }
 286
 287         /* Check for message routing */
 288         if (msg->cm_fields['D'] != NULL) {
 289                 if (strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
 290
 291                         /* route the message */
 292                         Buf = NewStrBufPlain(msg->cm_fields['D'], -1);
 293                         if (CtdlIsValidNode(&nexthop,
 294                                             NULL,
 295                                             Buf,
 296                                             working_ignetcfg,
 297                                             the_netmap) == 0)
 298                         {
 299                                 /* prepend our node to the path */
 300                                 if (msg->cm_fields['P'] != NULL) {
 301                                         oldpath = msg->cm_fields['P'];
 302                                         msg->cm_fields['P'] = NULL;
 303                                 }
 304                                 else {
 305                                         oldpath = strdup("unknown_user");
 306                                 }
 307                                 size = strlen(oldpath) + SIZ;
 308                                 msg->cm_fields['P'] = malloc(size);
 309                                 snprintf(msg->cm_fields['P'], size, "%s!%s",
 310                                         config.c_nodename, oldpath);
 311                                 free(oldpath);
 312
 313                                 /* serialize the message */
 314                                 serialize_message(&sermsg, msg);
 315
 316                                 /* now send it */
 317                                 if (StrLength(nexthop) == 0) {
 318                                         nexthop = Buf;
 319                                 }
 320                                 snprintf(filename,
 321                                          sizeof filename,
 322                                          "%s/%s@%lx%x",
 323                                          ctdl_netout_dir,
 324                                          ChrPtr(nexthop),
 325                                          time(NULL),
 326                                          rand()
 327                                 );
 328                                 QN_syslog(LOG_DEBUG, "Appending to %s\n", filename);
 329                                 fp = fopen(filename, "ab");
 330                                 if (fp != NULL) {
 331                                         fwrite(sermsg.ser, sermsg.len, 1, fp);
 332                                         fclose(fp);
 333                                 }
 334                                 else {
 335                                         QN_syslog(LOG_ERR, "%s: %s\n", filename, strerror(errno));
 336                                 }
 337                                 free(sermsg.ser);
 338                                 CtdlFreeMessage(msg);
 339                                 FreeStrBuf(&Buf);
 340                                 return;
 341                         }
 342
 343                         else {  /* invalid destination node name */
 344                                 FreeStrBuf(&Buf);
 345
 346                                 network_bounce(msg,
 347 "A message you sent could not be delivered due to an invalid destination node"
 348 " name.  Please check the address and try sending the message again.\n");
 349                                 msg = NULL;
 350                                 return;
 351
 352                         }
 353                 }
 354         }
 355
 356         /*
 357          * Check to see if we already have a copy of this message, and
 358          * abort its processing if so.  (We used to post a warning to Aide>
 359          * every time this happened, but the network is now so densely
 360          * connected that it's inevitable.)
 361          */
 362         if (network_usetable(msg) != 0) {
 363                 CtdlFreeMessage(msg);
 364                 return;
 365         }
 366
 367         /* Learn network topology from the path */
 368         if ((msg->cm_fields['N'] != NULL) && (msg->cm_fields['P'] != NULL)) {
 369                 NetworkLearnTopology(msg->cm_fields['N'],
 370                                      msg->cm_fields['P'],
 371                                      the_netmap,
 372                                      netmap_changed);
 373         }
 374
 375         /* Is the sending node giving us a very persuasive suggestion about
 376          * which room this message should be saved in?  If so, go with that.
 377          */
 378         if (msg->cm_fields['C'] != NULL) {
 379                 safestrncpy(target_room, msg->cm_fields['C'], sizeof target_room);
 380         }
 381
 382         /* Otherwise, does it have a recipient?  If so, validate it... */
 383         else if (msg->cm_fields['R'] != NULL) {
 384                 recp = validate_recipients(msg->cm_fields['R'], NULL, 0);
 385                 if (recp != NULL) if (recp->num_error != 0) {
 386                         network_bounce(msg,
 387                                 "A message you sent could not be delivered due to an invalid address.\n"
 388                                 "Please check the address and try sending the message again.\n");
 389                         msg = NULL;
 390                         free_recipients(recp);
 391                         QNM_syslog(LOG_DEBUG, "Bouncing message due to invalid recipient address.\n");
 392                         return;
 393                 }
 394                 strcpy(target_room, "");        /* no target room if mail */
 395         }
 396
 397         /* Our last shot at finding a home for this message is to see if
 398          * it has the O field (Originating room) set.
 399          */
 400         else if (msg->cm_fields['O'] != NULL) {
 401                 safestrncpy(target_room, msg->cm_fields['O'], sizeof target_room);
 402         }
 403
 404         /* Strip out fields that are only relevant during transit */
 405         if (msg->cm_fields['D'] != NULL) {
 406                 free(msg->cm_fields['D']);
 407                 msg->cm_fields['D'] = NULL;
 408         }
 409         if (msg->cm_fields['C'] != NULL) {
 410                 free(msg->cm_fields['C']);
 411                 msg->cm_fields['C'] = NULL;
 412         }
 413
 414         /* save the message into a room */
 415         if (PerformNetprocHooks(msg, target_room) == 0) {
 416                 msg->cm_flags = CM_SKIP_HOOKS;
 417                 CtdlSubmitMsg(msg, recp, target_room, 0);
 418         }
 419         CtdlFreeMessage(msg);
 420         free_recipients(recp);
 421 }
 422
 423
 424 /*
 425  * Process a single message from a single file from the inbound queue
 426  */
 427 void network_process_message(FILE *fp,
 428                              long msgstart,
 429                              long msgend,
 430                              HashList *working_ignetcfg,
 431                              HashList *the_netmap,
 432                              int *netmap_changed)
 433 {
 434         long hold_pos;
 435         long size;
 436         char *buffer;
 437
 438         hold_pos = ftell(fp);
 439         size = msgend - msgstart + 1;
 440         buffer = malloc(size);
 441         if (buffer != NULL) {
 442                 fseek(fp, msgstart, SEEK_SET);
 443                 if (fread(buffer, size, 1, fp) > 0) {
 444                         network_process_buffer(buffer,
 445                                                size,
 446                                                working_ignetcfg,
 447                                                the_netmap,
 448                                                netmap_changed);
 449                 }
 450                 free(buffer);
 451         }
 452
 453         fseek(fp, hold_pos, SEEK_SET);
 454 }
 455
 456
 457 /*
 458  * Process a single file from the inbound queue
 459  */
 460 void network_process_file(char *filename,
 461                           HashList *working_ignetcfg,
 462                           HashList *the_netmap,
 463                           int *netmap_changed)
 464 {
 465         struct CitContext *CCC = CC;
 466         FILE *fp;
 467         long msgstart = (-1L);
 468         long msgend = (-1L);
 469         long msgcur = 0L;
 470         int ch;
 471
 472
 473         fp = fopen(filename, "rb");
 474         if (fp == NULL) {
 475                 QN_syslog(LOG_CRIT, "Error opening %s: %s\n", filename, strerror(errno));
 476                 return;
 477         }
 478
 479         fseek(fp, 0L, SEEK_END);
 480         QN_syslog(LOG_INFO, "network: processing %ld bytes from %s\n", ftell(fp), filename);
 481         rewind(fp);
 482
 483         /* Look for messages in the data stream and break them out */
 484         while (ch = getc(fp), ch >= 0) {
 485
 486                 if (ch == 255) {
 487                         if (msgstart >= 0L) {
 488                                 msgend = msgcur - 1;
 489                                 network_process_message(fp,
 490                                                         msgstart,
 491                                                         msgend,
 492                                                         working_ignetcfg,
 493                                                         the_netmap,
 494                                                         netmap_changed);
 495                         }
 496                         msgstart = msgcur;
 497                 }
 498
 499                 ++msgcur;
 500         }
 501
 502         msgend = msgcur - 1;
 503         if (msgstart >= 0L) {
 504                 network_process_message(fp,
 505                                         msgstart,
 506                                         msgend,
 507                                         working_ignetcfg,
 508                                         the_netmap,
 509                                         netmap_changed);
 510         }
 511
 512         fclose(fp);
 513         unlink(filename);
 514 }
 515
 516
 517 /*
 518  * Process anything in the inbound queue
 519  */
 520 void network_do_spoolin(HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 521 {
 522         struct CitContext *CCC = CC;
 523         DIR *dp;
 524         struct dirent *d;
 525         struct dirent *filedir_entry;
 526         struct stat statbuf;
 527         char filename[PATH_MAX];
 528         static time_t last_spoolin_mtime = 0L;
 529         int d_type = 0;
 530         int d_namelen;
 531
 532         /*
 533          * Check the spoolin directory's modification time.  If it hasn't
 534          * been touched, we don't need to scan it.
 535          */
 536         if (stat(ctdl_netin_dir, &statbuf)) return;
 537         if (statbuf.st_mtime == last_spoolin_mtime) {
 538                 QNM_syslog(LOG_DEBUG, "network: nothing in inbound queue\n");
 539                 return;
 540         }
 541         last_spoolin_mtime = statbuf.st_mtime;
 542         QNM_syslog(LOG_DEBUG, "network: processing inbound queue\n");
 543
 544         /*
 545          * Ok, there's something interesting in there, so scan it.
 546          */
 547         dp = opendir(ctdl_netin_dir);
 548         if (dp == NULL) return;
 549
 550         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 551         if (d == NULL) {
 552                 closedir(dp);
 553                 return;
 554         }
 555
 556         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 557                (filedir_entry != NULL))
 558         {
 559 #ifdef _DIRENT_HAVE_D_NAMLEN
 560                 d_namelen = filedir_entry->d_namelen;
 561
 562 #else
 563                 d_namelen = strlen(filedir_entry->d_name);
 564 #endif
 565
 566 #ifdef _DIRENT_HAVE_D_TYPE
 567                 d_type = filedir_entry->d_type;
 568 #else
 569                 d_type = DT_UNKNOWN;
 570 #endif
 571                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 572                         continue; /* Ignore backup files... */
 573
 574                 if ((d_namelen == 1) &&
 575                     (filedir_entry->d_name[0] == '.'))
 576                         continue;
 577
 578                 if ((d_namelen == 2) &&
 579                     (filedir_entry->d_name[0] == '.') &&
 580                     (filedir_entry->d_name[1] == '.'))
 581                         continue;
 582
 583                 if (d_type == DT_UNKNOWN) {
 584                         struct stat s;
 585                         char path[PATH_MAX];
 586
 587                         snprintf(path,
 588                                  PATH_MAX,
 589                                  "%s/%s",
 590                                  ctdl_netin_dir,
 591                                  filedir_entry->d_name);
 592
 593                         if (lstat(path, &s) == 0) {
 594                                 d_type = IFTODT(s.st_mode);
 595                         }
 596                 }
 597
 598                 switch (d_type)
 599                 {
 600                 case DT_DIR:
 601                         break;
 602                 case DT_LNK: /* TODO: check whether its a file or a directory */
 603                 case DT_REG:
 604                         snprintf(filename,
 605                                 sizeof filename,
 606                                 "%s/%s",
 607                                 ctdl_netin_dir,
 608                                 d->d_name
 609                         );
 610                         network_process_file(filename,
 611                                              working_ignetcfg,
 612                                              the_netmap,
 613                                              netmap_changed);
 614                 }
 615         }
 616
 617         closedir(dp);
 618         free(d);
 619 }
 620
 621 /*
 622  * Step 1: consolidate files in the outbound queue into one file per neighbor node
 623  * Step 2: delete any files in the outbound queue that were for neighbors who no longer exist.
 624  */
 625 void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netmap)
 626 {
 627         struct CitContext *CCC = CC;
 628         IOBuffer IOB;
 629         FDIOBuffer FDIO;
 630         int d_namelen;
 631         DIR *dp;
 632         struct dirent *d;
 633         struct dirent *filedir_entry;
 634         const char *pch;
 635         char spooloutfilename[PATH_MAX];
 636         char filename[PATH_MAX];
 637         const StrBuf *nexthop;
 638         StrBuf *NextHop;
 639         int i;
 640         struct stat statbuf;
 641         int nFailed = 0;
 642         int d_type = 0;
 643
 644
 645         /* Step 1: consolidate files in the outbound queue into one file per neighbor node */
 646         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 647         if (d == NULL)  return;
 648
 649         dp = opendir(ctdl_netout_dir);
 650         if (dp == NULL) {
 651                 free(d);
 652                 return;
 653         }
 654
 655         NextHop = NewStrBuf();
 656         memset(&IOB, 0, sizeof(IOBuffer));
 657         memset(&FDIO, 0, sizeof(FDIOBuffer));
 658         FDIO.IOB = &IOB;
 659
 660         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 661                (filedir_entry != NULL))
 662         {
 663 #ifdef _DIRENT_HAVE_D_NAMLEN
 664                 d_namelen = filedir_entry->d_namelen;
 665
 666 #else
 667                 d_namelen = strlen(filedir_entry->d_name);
 668 #endif
 669
 670 #ifdef _DIRENT_HAVE_D_TYPE
 671                 d_type = filedir_entry->d_type;
 672 #else
 673                 d_type = DT_UNKNOWN;
 674 #endif
 675                 if (d_type == DT_DIR)
 676                         continue;
 677
 678                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 679                         continue; /* Ignore backup files... */
 680
 681                 if ((d_namelen == 1) &&
 682                     (filedir_entry->d_name[0] == '.'))
 683                         continue;
 684
 685                 if ((d_namelen == 2) &&
 686                     (filedir_entry->d_name[0] == '.') &&
 687                     (filedir_entry->d_name[1] == '.'))
 688                         continue;
 689
 690                 pch = strchr(filedir_entry->d_name, '@');
 691                 if (pch == NULL)
 692                         continue;
 693
 694                 snprintf(filename,
 695                          sizeof filename,
 696                          "%s/%s",
 697                          ctdl_netout_dir,
 698                          filedir_entry->d_name);
 699
 700                 StrBufPlain(NextHop,
 701                             filedir_entry->d_name,
 702                             pch - filedir_entry->d_name);
 703
 704                 snprintf(spooloutfilename,
 705                          sizeof spooloutfilename,
 706                          "%s/%s",
 707                          ctdl_netout_dir,
 708                          ChrPtr(NextHop));
 709
 710                 QN_syslog(LOG_DEBUG, "Consolidate %s to %s\n", filename, ChrPtr(NextHop));
 711                 if (CtdlNetworkTalkingTo(SKEY(NextHop), NTT_CHECK)) {
 712                         nFailed++;
 713                         QN_syslog(LOG_DEBUG,
 714                                   "Currently online with %s - skipping for now\n",
 715                                   ChrPtr(NextHop)
 716                                 );
 717                 }
 718                 else {
 719                         size_t dsize;
 720                         size_t fsize;
 721                         int infd, outfd;
 722                         const char *err = NULL;
 723                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_ADD);
 724
 725                         infd = open(filename, O_RDONLY);
 726                         if (infd == -1) {
 727                                 nFailed++;
 728                                 QN_syslog(LOG_ERR,
 729                                           "failed to open %s for reading due to %s; skipping.\n",
 730                                           filename, strerror(errno)
 731                                         );
 732                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 733                                 continue;
 734                         }
 735
 736                         outfd = open(spooloutfilename,
 737                                   O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
 738                                   S_IRUSR|S_IWUSR);
 739                         if (outfd == -1)
 740                         {
 741                                 outfd = open(spooloutfilename,
 742                                              O_EXCL|O_NONBLOCK|O_WRONLY,
 743                                              S_IRUSR | S_IWUSR);
 744                         }
 745                         if (outfd == -1) {
 746                                 nFailed++;
 747                                 QN_syslog(LOG_ERR,
 748                                           "failed to open %s for reading due to %s; skipping.\n",
 749                                           spooloutfilename, strerror(errno)
 750                                         );
 751                                 close(infd);
 752                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 753                                 continue;
 754                         }
 755
 756                         dsize = lseek(outfd, 0, SEEK_END);
 757                         lseek(outfd, -dsize, SEEK_SET);
 758
 759                         fstat(infd, &statbuf);
 760                         fsize = statbuf.st_size;
 761 /*
 762                         fsize = lseek(infd, 0, SEEK_END);
 763 */
 764                         IOB.fd = infd;
 765                         FDIOBufferInit(&FDIO, &IOB, outfd, fsize + dsize);
 766                         FDIO.ChunkSendRemain = fsize;
 767                         FDIO.TotalSentAlready = dsize;
 768                         err = NULL;
 769                         errno = 0;
 770                         do {} while ((FileMoveChunked(&FDIO, &err) > 0) && (err == NULL));
 771                         if (err == NULL) {
 772                                 unlink(filename);
 773                         }
 774                         else {
 775                                 nFailed++;
 776                                 QN_syslog(LOG_ERR,
 777                                           "failed to append to %s [%s]; rolling back..\n",
 778                                           spooloutfilename, strerror(errno)
 779                                         );
 780                                 /* whoops partial append?? truncate spooloutfilename again! */
 781                                 ftruncate(outfd, dsize);
 782                         }
 783                         FDIOBufferDelete(&FDIO);
 784                         close(infd);
 785                         close(outfd);
 786                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 787                 }
 788         }
 789         closedir(dp);
 790
 791         if (nFailed > 0) {
 792                 FreeStrBuf(&NextHop);
 793                 QN_syslog(LOG_INFO,
 794                           "skipping Spoolcleanup because of %d files unprocessed.\n",
 795                           nFailed
 796                         );
 797
 798                 return;
 799         }
 800
 801         /* Step 2: delete any files in the outbound queue that were for neighbors who no longer exist */
 802         dp = opendir(ctdl_netout_dir);
 803         if (dp == NULL) {
 804                 FreeStrBuf(&NextHop);
 805                 free(d);
 806                 return;
 807         }
 808
 809         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 810                (filedir_entry != NULL))
 811         {
 812 #ifdef _DIRENT_HAVE_D_NAMLEN
 813                 d_namelen = filedir_entry->d_namelen;
 814
 815 #else
 816                 d_namelen = strlen(filedir_entry->d_name);
 817 #endif
 818
 819 #ifdef _DIRENT_HAVE_D_TYPE
 820                 d_type = filedir_entry->d_type;
 821 #else
 822                 d_type = DT_UNKNOWN;
 823 #endif
 824                 if (d_type == DT_DIR)
 825                         continue;
 826
 827                 if ((d_namelen == 1) &&
 828                     (filedir_entry->d_name[0] == '.'))
 829                         continue;
 830
 831                 if ((d_namelen == 2) &&
 832                     (filedir_entry->d_name[0] == '.') &&
 833                     (filedir_entry->d_name[1] == '.'))
 834                         continue;
 835
 836                 pch = strchr(filedir_entry->d_name, '@');
 837                 if (pch == NULL) /* no @ in name? consolidated file. */
 838                         continue;
 839
 840                 StrBufPlain(NextHop,
 841                             filedir_entry->d_name,
 842                             pch - filedir_entry->d_name);
 843
 844                 snprintf(filename,
 845                         sizeof filename,
 846                         "%s/%s",
 847                         ctdl_netout_dir,
 848                         filedir_entry->d_name
 849                 );
 850
 851                 i = CtdlIsValidNode(&nexthop,
 852                                     NULL,
 853                                     NextHop,
 854                                     working_ignetcfg,
 855                                     the_netmap);
 856
 857                 if ( (i != 0) || (StrLength(nexthop) > 0) ) {
 858                         unlink(filename);
 859                 }
 860         }
 861         FreeStrBuf(&NextHop);
 862         free(d);
 863         closedir(dp);
 864 }
 865
 866
 867
 868
 869 /*
 870  * It's ok if these directories already exist.  Just fail silently.
 871  */
 872 void create_spool_dirs(void) {
 873         if ((mkdir(ctdl_spool_dir, 0700) != 0) && (errno != EEXIST))
 874                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_spool_dir, strerror(errno));
 875         if (chown(ctdl_spool_dir, CTDLUID, (-1)) != 0)
 876                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_spool_dir, strerror(errno));
 877         if ((mkdir(ctdl_netin_dir, 0700) != 0) && (errno != EEXIST))
 878                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netin_dir, strerror(errno));
 879         if (chown(ctdl_netin_dir, CTDLUID, (-1)) != 0)
 880                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netin_dir, strerror(errno));
 881         if ((mkdir(ctdl_nettmp_dir, 0700) != 0) && (errno != EEXIST))
 882                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 883         if (chown(ctdl_nettmp_dir, CTDLUID, (-1)) != 0)
 884                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 885         if ((mkdir(ctdl_netout_dir, 0700) != 0) && (errno != EEXIST))
 886                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netout_dir, strerror(errno));
 887         if (chown(ctdl_netout_dir, CTDLUID, (-1)) != 0)
 888                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netout_dir, strerror(errno));
 889 }
 890
 891 /*
 892  * Module entry point
 893  */
 894 CTDL_MODULE_INIT(network_spool)
 895 {
 896         if (!threading)
 897         {
 898 //              CtdlREGISTERRoomCfgType(subpending, ParseSubPendingLine, 0, SerializeSubPendingLine, DeleteSubPendingLine); /// todo: move this to mailinglist manager
 899 //              CtdlREGISTERRoomCfgType(unsubpending, ParseUnSubPendingLine0, SerializeUnSubPendingLine, DeleteUnSubPendingLine); /// todo: move this to mailinglist manager
 900 //              CtdlREGISTERRoomCfgType(lastsent, ParseLastSent, 1, SerializeLastSent, DeleteLastSent);
 901 ///             CtdlREGISTERRoomCfgType(ignet_push_share, ParseIgnetPushShare, 0, SerializeIgnetPushShare, DeleteIgnetPushShare); // todo: move this to the ignet client
 902                 CtdlREGISTERRoomCfgType(listrecp, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 903                 CtdlREGISTERRoomCfgType(digestrecp, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 904                 CtdlREGISTERRoomCfgType(participate, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 905                 CtdlREGISTERRoomCfgType(roommailalias, ParseRoomAlias, 0, SerializeGeneric, DeleteGenericCfgLine);
 906
 907                 create_spool_dirs();
 908 //////todo              CtdlRegisterCleanupHook(destroy_network_queue_room);
 909         }
 910         return "network_spool";
 911 }