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 "netconfig.h"
  83 #include "netspool.h"
  84 #include "netmail.h"
  85
  86
  87
  88
  89 void ParseLastSent(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
  90 {
  91         rncfg->lastsent = extract_long(LinePos, 0);
  92 }
  93 void ParseIgnetPushShare(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
  94 {
  95 /*
  96         extract_token(nodename, LinePos, 0, '|', sizeof nodename);
  97         extract_token(roomname, LinePos, 1, '|', sizeof roomname);
  98         mptr = (maplist *) malloc(sizeof(maplist));
  99         mptr->next = rncfg->RNCfg->ignet_push_shares;
 100         strcpy(mptr->remote_nodename, nodename);
 101         strcpy(mptr->remote_roomname, roomname);
 102         rncfg->RNCfg->ignet_push_shares = mptr;
 103 */
 104 }
 105
 106 void ParseRoomAlias(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 107 {
 108 /*
 109         if (rncfg->RNCfg->sender != NULL)
 110                 continue; / * just one alowed... * /
 111         extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
 112         rncfg->RNCfg->sender = nptr;
 113 */
 114 }
 115
 116 void ParseSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 117 {
 118
 119         if (time(NULL) - extract_long(LinePos, 3) > EXP) {
 120                 //      skipthisline = 1;
 121         }
 122         else
 123         {
 124         }
 125
 126 }
 127 void ParseUnSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 128 {
 129         ///int skipthisline = 0;
 130         if (time(NULL) - extract_long(LinePos, 2) > EXP) {
 131                 //      skipthisline = 1;
 132         }
 133
 134 }
 135
 136
 137 void SerializeLastSent(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 138 {
 139         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 140         StrBufAppendPrintf(OutputBuffer, "|%ld\n", RNCfg->lastsent);
 141 }
 142
 143 void SerializeIgnetPushShare(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 144 {
 145         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 146 /*
 147                         StrBufAppendPrintf(Cfg, "ignet_push_share|%s", RNCfg->ignet_push_shares->remote_nodename);
 148                         if (!IsEmptyStr(RNCfg->ignet_push_shares->remote_roomname)) {
 149                                 StrBufAppendPrintf(Cfg, "|%s", RNCfg->ignet_push_shares->remote_roomname);
 150                         }
 151                         StrBufAppendPrintf(Cfg, "\n");
 152                         mptr = RNCfg->ignet_push_shares->next;
 153                         free(RNCfg->ignet_push_shares);
 154                         RNCfg->ignet_push_shares = mptr;
 155 */
 156         StrBufAppendBuf(OutputBuffer, data->Value, 0);
 157         StrBufAppendBufPlain(OutputBuffer, HKEY("\n"), 0);
 158 }
 159
 160 int is_recipient(OneRoomNetCfg *RNCfg, const char *Name)
 161 {
 162         const RoomNetCfg RecipientCfgs[] = {
 163                 listrecp,
 164                 digestrecp,
 165                 participate,
 166                 maxRoomNetCfg
 167         };
 168         int i;
 169         RoomNetCfgLine *nptr;
 170         size_t len;
 171
 172         len = strlen(Name);
 173         i = 0;
 174         while (RecipientCfgs[i] != maxRoomNetCfg)
 175         {
 176                 nptr = RNCfg->NetConfigs[RecipientCfgs[i]];
 177
 178                 while (nptr != NULL)
 179                 {
 180                         if ((StrLength(nptr->Value) == len) &&
 181                             (!strcmp(Name, ChrPtr(nptr->Value))))
 182                         {
 183                                 return 1;
 184                         }
 185                         nptr = nptr->next;
 186                 }
 187         }
 188         return 0;
 189 }
 190
 191
 192 /*
 193  * Batch up and send all outbound traffic from the current room
 194  */
 195 void network_spoolout_room(RoomProcList *room_to_spool,
 196                            HashList *working_ignetcfg,
 197                            HashList *the_netmap)
 198 {
 199         char buf[SIZ];
 200         char filename[PATH_MAX];
 201         SpoolControl *sc;
 202         int i;
 203
 204         /*
 205          * If the room doesn't exist, don't try to perform its networking tasks.
 206          * Normally this should never happen, but once in a while maybe a room gets
 207          * queued for networking and then deleted before it can happen.
 208          */
 209         if (CtdlGetRoom(&CC->room, room_to_spool->name) != 0) {
 210                 syslog(LOG_CRIT, "ERROR: cannot load <%s>\n", room_to_spool->name);
 211                 return;
 212         }
 213
 214         assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
 215         begin_critical_section(S_NETCONFIGS);
 216
 217         /* Only do net processing for rooms that have netconfigs */
 218         if (!read_spoolcontrol_file(&sc, filename))
 219         {
 220                 end_critical_section(S_NETCONFIGS);
 221                 return;
 222         }
 223         syslog(LOG_INFO, "Networking started for <%s>\n", CC->room.QRname);
 224
 225         sc->working_ignetcfg = working_ignetcfg;
 226         sc->the_netmap = the_netmap;
 227
 228         /* If there are digest recipients, we have to build a digest */
 229         if (sc->RNCfg->NetConfigs[digestrecp] != NULL) {
 230                 sc->digestfp = tmpfile();
 231                 fprintf(sc->digestfp, "Content-type: text/plain\n\n");
 232         }
 233
 234         /* Do something useful */
 235         CtdlForEachMessage(MSGS_GT, sc->RNCfg->lastsent, NULL, NULL, NULL,
 236                 network_spool_msg, sc);
 237
 238         /* If we wrote a digest, deliver it and then close it */
 239         snprintf(buf, sizeof buf, "room_%s@%s",
 240                 CC->room.QRname, config.c_fqdn);
 241         for (i=0; buf[i]; ++i) {
 242                 buf[i] = tolower(buf[i]);
 243                 if (isspace(buf[i])) buf[i] = '_';
 244         }
 245         if (sc->digestfp != NULL) {
 246                 fprintf(sc->digestfp,   " -----------------------------------"
 247                                         "------------------------------------"
 248                                         "-------\n"
 249                                         "You are subscribed to the '%s' "
 250                                         "list.\n"
 251                                         "To post to the list: %s\n",
 252                                         CC->room.QRname, buf
 253                 );
 254                 network_deliver_digest(sc);     /* deliver and close */
 255         }
 256
 257         /* Now rewrite the config file */
 258         //// todo writenfree_spoolcontrol_file(&sc, filename);
 259         end_critical_section(S_NETCONFIGS);
 260 }
 261
 262 /*
 263  * Process a buffer containing a single message from a single file
 264  * from the inbound queue
 265  */
 266 void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 267 {
 268         struct CitContext *CCC = CC;
 269         StrBuf *Buf = NULL;
 270         struct CtdlMessage *msg = NULL;
 271         long pos;
 272         int field;
 273         struct recptypes *recp = NULL;
 274         char target_room[ROOMNAMELEN];
 275         struct ser_ret sermsg;
 276         char *oldpath = NULL;
 277         char filename[PATH_MAX];
 278         FILE *fp;
 279         const StrBuf *nexthop = NULL;
 280         unsigned char firstbyte;
 281         unsigned char lastbyte;
 282
 283         QN_syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes\n", size);
 284
 285         /* Validate just a little bit.  First byte should be FF and * last byte should be 00. */
 286         firstbyte = buffer[0];
 287         lastbyte = buffer[size-1];
 288         if ( (firstbyte != 255) || (lastbyte != 0) ) {
 289                 QN_syslog(LOG_ERR, "Corrupt message ignored.  Length=%ld, firstbyte = %d, lastbyte = %d\n",
 290                           size, firstbyte, lastbyte);
 291                 return;
 292         }
 293
 294         /* Set default target room to trash */
 295         strcpy(target_room, TWITROOM);
 296
 297         /* Load the message into memory */
 298         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
 299         memset(msg, 0, sizeof(struct CtdlMessage));
 300         msg->cm_magic = CTDLMESSAGE_MAGIC;
 301         msg->cm_anon_type = buffer[1];
 302         msg->cm_format_type = buffer[2];
 303
 304         for (pos = 3; pos < size; ++pos) {
 305                 field = buffer[pos];
 306                 msg->cm_fields[field] = strdup(&buffer[pos+1]);
 307                 pos = pos + strlen(&buffer[(int)pos]);
 308         }
 309
 310         /* Check for message routing */
 311         if (msg->cm_fields['D'] != NULL) {
 312                 if (strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
 313
 314                         /* route the message */
 315                         Buf = NewStrBufPlain(msg->cm_fields['D'], -1);
 316                         if (is_valid_node(&nexthop,
 317                                           NULL,
 318                                           Buf,
 319                                           working_ignetcfg,
 320                                           the_netmap) == 0)
 321                         {
 322                                 /* prepend our node to the path */
 323                                 if (msg->cm_fields['P'] != NULL) {
 324                                         oldpath = msg->cm_fields['P'];
 325                                         msg->cm_fields['P'] = NULL;
 326                                 }
 327                                 else {
 328                                         oldpath = strdup("unknown_user");
 329                                 }
 330                                 size = strlen(oldpath) + SIZ;
 331                                 msg->cm_fields['P'] = malloc(size);
 332                                 snprintf(msg->cm_fields['P'], size, "%s!%s",
 333                                         config.c_nodename, oldpath);
 334                                 free(oldpath);
 335
 336                                 /* serialize the message */
 337                                 serialize_message(&sermsg, msg);
 338
 339                                 /* now send it */
 340                                 if (StrLength(nexthop) == 0) {
 341                                         nexthop = Buf;
 342                                 }
 343                                 snprintf(filename,
 344                                          sizeof filename,
 345                                          "%s/%s@%lx%x",
 346                                          ctdl_netout_dir,
 347                                          ChrPtr(nexthop),
 348                                          time(NULL),
 349                                          rand()
 350                                 );
 351                                 QN_syslog(LOG_DEBUG, "Appending to %s\n", filename);
 352                                 fp = fopen(filename, "ab");
 353                                 if (fp != NULL) {
 354                                         fwrite(sermsg.ser, sermsg.len, 1, fp);
 355                                         fclose(fp);
 356                                 }
 357                                 else {
 358                                         QN_syslog(LOG_ERR, "%s: %s\n", filename, strerror(errno));
 359                                 }
 360                                 free(sermsg.ser);
 361                                 CtdlFreeMessage(msg);
 362                                 FreeStrBuf(&Buf);
 363                                 return;
 364                         }
 365
 366                         else {  /* invalid destination node name */
 367                                 FreeStrBuf(&Buf);
 368
 369                                 network_bounce(msg,
 370 "A message you sent could not be delivered due to an invalid destination node"
 371 " name.  Please check the address and try sending the message again.\n");
 372                                 msg = NULL;
 373                                 return;
 374
 375                         }
 376                 }
 377         }
 378
 379         /*
 380          * Check to see if we already have a copy of this message, and
 381          * abort its processing if so.  (We used to post a warning to Aide>
 382          * every time this happened, but the network is now so densely
 383          * connected that it's inevitable.)
 384          */
 385         if (network_usetable(msg) != 0) {
 386                 CtdlFreeMessage(msg);
 387                 return;
 388         }
 389
 390         /* Learn network topology from the path */
 391         if ((msg->cm_fields['N'] != NULL) && (msg->cm_fields['P'] != NULL)) {
 392                 network_learn_topology(msg->cm_fields['N'],
 393                                        msg->cm_fields['P'],
 394                                        the_netmap,
 395                                        netmap_changed);
 396         }
 397
 398         /* Is the sending node giving us a very persuasive suggestion about
 399          * which room this message should be saved in?  If so, go with that.
 400          */
 401         if (msg->cm_fields['C'] != NULL) {
 402                 safestrncpy(target_room, msg->cm_fields['C'], sizeof target_room);
 403         }
 404
 405         /* Otherwise, does it have a recipient?  If so, validate it... */
 406         else if (msg->cm_fields['R'] != NULL) {
 407                 recp = validate_recipients(msg->cm_fields['R'], NULL, 0);
 408                 if (recp != NULL) if (recp->num_error != 0) {
 409                         network_bounce(msg,
 410                                 "A message you sent could not be delivered due to an invalid address.\n"
 411                                 "Please check the address and try sending the message again.\n");
 412                         msg = NULL;
 413                         free_recipients(recp);
 414                         QNM_syslog(LOG_DEBUG, "Bouncing message due to invalid recipient address.\n");
 415                         return;
 416                 }
 417                 strcpy(target_room, "");        /* no target room if mail */
 418         }
 419
 420         /* Our last shot at finding a home for this message is to see if
 421          * it has the O field (Originating room) set.
 422          */
 423         else if (msg->cm_fields['O'] != NULL) {
 424                 safestrncpy(target_room, msg->cm_fields['O'], sizeof target_room);
 425         }
 426
 427         /* Strip out fields that are only relevant during transit */
 428         if (msg->cm_fields['D'] != NULL) {
 429                 free(msg->cm_fields['D']);
 430                 msg->cm_fields['D'] = NULL;
 431         }
 432         if (msg->cm_fields['C'] != NULL) {
 433                 free(msg->cm_fields['C']);
 434                 msg->cm_fields['C'] = NULL;
 435         }
 436
 437         /* save the message into a room */
 438         if (PerformNetprocHooks(msg, target_room) == 0) {
 439                 msg->cm_flags = CM_SKIP_HOOKS;
 440                 CtdlSubmitMsg(msg, recp, target_room, 0);
 441         }
 442         CtdlFreeMessage(msg);
 443         free_recipients(recp);
 444 }
 445
 446
 447 /*
 448  * Process a single message from a single file from the inbound queue
 449  */
 450 void network_process_message(FILE *fp,
 451                              long msgstart,
 452                              long msgend,
 453                              HashList *working_ignetcfg,
 454                              HashList *the_netmap,
 455                              int *netmap_changed)
 456 {
 457         long hold_pos;
 458         long size;
 459         char *buffer;
 460
 461         hold_pos = ftell(fp);
 462         size = msgend - msgstart + 1;
 463         buffer = malloc(size);
 464         if (buffer != NULL) {
 465                 fseek(fp, msgstart, SEEK_SET);
 466                 if (fread(buffer, size, 1, fp) > 0) {
 467                         network_process_buffer(buffer,
 468                                                size,
 469                                                working_ignetcfg,
 470                                                the_netmap,
 471                                                netmap_changed);
 472                 }
 473                 free(buffer);
 474         }
 475
 476         fseek(fp, hold_pos, SEEK_SET);
 477 }
 478
 479
 480 /*
 481  * Process a single file from the inbound queue
 482  */
 483 void network_process_file(char *filename,
 484                           HashList *working_ignetcfg,
 485                           HashList *the_netmap,
 486                           int *netmap_changed)
 487 {
 488         struct CitContext *CCC = CC;
 489         FILE *fp;
 490         long msgstart = (-1L);
 491         long msgend = (-1L);
 492         long msgcur = 0L;
 493         int ch;
 494
 495
 496         fp = fopen(filename, "rb");
 497         if (fp == NULL) {
 498                 QN_syslog(LOG_CRIT, "Error opening %s: %s\n", filename, strerror(errno));
 499                 return;
 500         }
 501
 502         fseek(fp, 0L, SEEK_END);
 503         QN_syslog(LOG_INFO, "network: processing %ld bytes from %s\n", ftell(fp), filename);
 504         rewind(fp);
 505
 506         /* Look for messages in the data stream and break them out */
 507         while (ch = getc(fp), ch >= 0) {
 508
 509                 if (ch == 255) {
 510                         if (msgstart >= 0L) {
 511                                 msgend = msgcur - 1;
 512                                 network_process_message(fp,
 513                                                         msgstart,
 514                                                         msgend,
 515                                                         working_ignetcfg,
 516                                                         the_netmap,
 517                                                         netmap_changed);
 518                         }
 519                         msgstart = msgcur;
 520                 }
 521
 522                 ++msgcur;
 523         }
 524
 525         msgend = msgcur - 1;
 526         if (msgstart >= 0L) {
 527                 network_process_message(fp,
 528                                         msgstart,
 529                                         msgend,
 530                                         working_ignetcfg,
 531                                         the_netmap,
 532                                         netmap_changed);
 533         }
 534
 535         fclose(fp);
 536         unlink(filename);
 537 }
 538
 539
 540 /*
 541  * Process anything in the inbound queue
 542  */
 543 void network_do_spoolin(HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 544 {
 545         struct CitContext *CCC = CC;
 546         DIR *dp;
 547         struct dirent *d;
 548         struct stat statbuf;
 549         char filename[PATH_MAX];
 550         static time_t last_spoolin_mtime = 0L;
 551
 552         /*
 553          * Check the spoolin directory's modification time.  If it hasn't
 554          * been touched, we don't need to scan it.
 555          */
 556         if (stat(ctdl_netin_dir, &statbuf)) return;
 557         if (statbuf.st_mtime == last_spoolin_mtime) {
 558                 QNM_syslog(LOG_DEBUG, "network: nothing in inbound queue\n");
 559                 return;
 560         }
 561         last_spoolin_mtime = statbuf.st_mtime;
 562         QNM_syslog(LOG_DEBUG, "network: processing inbound queue\n");
 563
 564         /*
 565          * Ok, there's something interesting in there, so scan it.
 566          */
 567         dp = opendir(ctdl_netin_dir);
 568         if (dp == NULL) return;
 569
 570         while (d = readdir(dp), d != NULL) {
 571                 if ((strcmp(d->d_name, ".")) && (strcmp(d->d_name, ".."))) {
 572                         snprintf(filename,
 573                                 sizeof filename,
 574                                 "%s/%s",
 575                                 ctdl_netin_dir,
 576                                 d->d_name
 577                         );
 578                         network_process_file(filename,
 579                                              working_ignetcfg,
 580                                              the_netmap,
 581                                              netmap_changed);
 582                 }
 583         }
 584
 585         closedir(dp);
 586 }
 587
 588 /*
 589  * Step 1: consolidate files in the outbound queue into one file per neighbor node
 590  * Step 2: delete any files in the outbound queue that were for neighbors who no longer exist.
 591  */
 592 void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netmap)
 593 {
 594         struct CitContext *CCC = CC;
 595         IOBuffer IOB;
 596         FDIOBuffer FDIO;
 597         int d_namelen;
 598         DIR *dp;
 599         struct dirent *d;
 600         struct dirent *filedir_entry;
 601         const char *pch;
 602         char spooloutfilename[PATH_MAX];
 603         char filename[PATH_MAX];
 604         const StrBuf *nexthop;
 605         StrBuf *NextHop;
 606         int i;
 607         struct stat statbuf;
 608         int nFailed = 0;
 609
 610         /* Step 1: consolidate files in the outbound queue into one file per neighbor node */
 611         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 612         if (d == NULL)  return;
 613
 614         dp = opendir(ctdl_netout_dir);
 615         if (dp == NULL) {
 616                 free(d);
 617                 return;
 618         }
 619
 620         NextHop = NewStrBuf();
 621         memset(&IOB, 0, sizeof(IOBuffer));
 622         memset(&FDIO, 0, sizeof(FDIOBuffer));
 623         FDIO.IOB = &IOB;
 624
 625         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 626                (filedir_entry != NULL))
 627         {
 628 #ifdef _DIRENT_HAVE_D_NAMELEN
 629                 d_namelen = filedir_entry->d_namelen;
 630 #else
 631
 632 #ifndef DT_UNKNOWN
 633 #define DT_UNKNOWN     0
 634 #define DT_DIR         4
 635 #define DT_REG         8
 636 #define DT_LNK         10
 637
 638 #define IFTODT(mode)   (((mode) & 0170000) >> 12)
 639 #define DTTOIF(dirtype)        ((dirtype) << 12)
 640 #endif
 641                 d_namelen = strlen(filedir_entry->d_name);
 642 #endif
 643                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 644                         continue; /* Ignore backup files... */
 645
 646                 if ((d_namelen == 1) &&
 647                     (filedir_entry->d_name[0] == '.'))
 648                         continue;
 649
 650                 if ((d_namelen == 2) &&
 651                     (filedir_entry->d_name[0] == '.') &&
 652                     (filedir_entry->d_name[1] == '.'))
 653                         continue;
 654
 655                 pch = strchr(filedir_entry->d_name, '@');
 656                 if (pch == NULL)
 657                         continue;
 658
 659                 snprintf(filename,
 660                          sizeof filename,
 661                          "%s/%s",
 662                          ctdl_netout_dir,
 663                          filedir_entry->d_name);
 664
 665                 StrBufPlain(NextHop,
 666                             filedir_entry->d_name,
 667                             pch - filedir_entry->d_name);
 668
 669                 snprintf(spooloutfilename,
 670                          sizeof spooloutfilename,
 671                          "%s/%s",
 672                          ctdl_netout_dir,
 673                          ChrPtr(NextHop));
 674
 675                 QN_syslog(LOG_DEBUG, "Consolidate %s to %s\n", filename, ChrPtr(NextHop));
 676                 if (network_talking_to(SKEY(NextHop), NTT_CHECK)) {
 677                         nFailed++;
 678                         QN_syslog(LOG_DEBUG,
 679                                   "Currently online with %s - skipping for now\n",
 680                                   ChrPtr(NextHop)
 681                                 );
 682                 }
 683                 else {
 684                         size_t dsize;
 685                         size_t fsize;
 686                         int infd, outfd;
 687                         const char *err = NULL;
 688                         network_talking_to(SKEY(NextHop), NTT_ADD);
 689
 690                         infd = open(filename, O_RDONLY);
 691                         if (infd == -1) {
 692                                 nFailed++;
 693                                 QN_syslog(LOG_ERR,
 694                                           "failed to open %s for reading due to %s; skipping.\n",
 695                                           filename, strerror(errno)
 696                                         );
 697                                 network_talking_to(SKEY(NextHop), NTT_REMOVE);
 698                                 continue;
 699                         }
 700
 701                         outfd = open(spooloutfilename,
 702                                   O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
 703                                   S_IRUSR|S_IWUSR);
 704                         if (outfd == -1)
 705                         {
 706                                 outfd = open(spooloutfilename,
 707                                              O_EXCL|O_NONBLOCK|O_WRONLY,
 708                                              S_IRUSR | S_IWUSR);
 709                         }
 710                         if (outfd == -1) {
 711                                 nFailed++;
 712                                 QN_syslog(LOG_ERR,
 713                                           "failed to open %s for reading due to %s; skipping.\n",
 714                                           spooloutfilename, strerror(errno)
 715                                         );
 716                                 close(infd);
 717                                 network_talking_to(SKEY(NextHop), NTT_REMOVE);
 718                                 continue;
 719                         }
 720
 721                         dsize = lseek(outfd, 0, SEEK_END);
 722                         lseek(outfd, -dsize, SEEK_SET);
 723
 724                         fstat(infd, &statbuf);
 725                         fsize = statbuf.st_size;
 726 /*
 727                         fsize = lseek(infd, 0, SEEK_END);
 728 */
 729                         IOB.fd = infd;
 730                         FDIOBufferInit(&FDIO, &IOB, outfd, fsize + dsize);
 731                         FDIO.ChunkSendRemain = fsize;
 732                         FDIO.TotalSentAlready = dsize;
 733                         err = NULL;
 734                         errno = 0;
 735                         do {} while ((FileMoveChunked(&FDIO, &err) > 0) && (err == NULL));
 736                         if (err == NULL) {
 737                                 unlink(filename);
 738                         }
 739                         else {
 740                                 nFailed++;
 741                                 QN_syslog(LOG_ERR,
 742                                           "failed to append to %s [%s]; rolling back..\n",
 743                                           spooloutfilename, strerror(errno)
 744                                         );
 745                                 /* whoops partial append?? truncate spooloutfilename again! */
 746                                 ftruncate(outfd, dsize);
 747                         }
 748                         FDIOBufferDelete(&FDIO);
 749                         close(infd);
 750                         close(outfd);
 751                         network_talking_to(SKEY(NextHop), NTT_REMOVE);
 752                 }
 753         }
 754         closedir(dp);
 755
 756         if (nFailed > 0) {
 757                 FreeStrBuf(&NextHop);
 758                 QN_syslog(LOG_INFO,
 759                           "skipping Spoolcleanup because of %d files unprocessed.\n",
 760                           nFailed
 761                         );
 762
 763                 return;
 764         }
 765
 766         /* Step 2: delete any files in the outbound queue that were for neighbors who no longer exist */
 767         dp = opendir(ctdl_netout_dir);
 768         if (dp == NULL) {
 769                 FreeStrBuf(&NextHop);
 770                 free(d);
 771                 return;
 772         }
 773
 774         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 775                (filedir_entry != NULL))
 776         {
 777 #ifdef _DIRENT_HAVE_D_NAMELEN
 778                 d_namelen = filedir_entry->d_namelen;
 779                 d_type = filedir_entry->d_type;
 780 #else
 781
 782 #ifndef DT_UNKNOWN
 783 #define DT_UNKNOWN     0
 784 #define DT_DIR         4
 785 #define DT_REG         8
 786 #define DT_LNK         10
 787
 788 #define IFTODT(mode)   (((mode) & 0170000) >> 12)
 789 #define DTTOIF(dirtype)        ((dirtype) << 12)
 790 #endif
 791                 d_namelen = strlen(filedir_entry->d_name);
 792 #endif
 793                 if ((d_namelen == 1) &&
 794                     (filedir_entry->d_name[0] == '.'))
 795                         continue;
 796
 797                 if ((d_namelen == 2) &&
 798                     (filedir_entry->d_name[0] == '.') &&
 799                     (filedir_entry->d_name[1] == '.'))
 800                         continue;
 801
 802                 pch = strchr(filedir_entry->d_name, '@');
 803                 if (pch == NULL) /* no @ in name? consolidated file. */
 804                         continue;
 805
 806                 StrBufPlain(NextHop,
 807                             filedir_entry->d_name,
 808                             pch - filedir_entry->d_name);
 809
 810                 snprintf(filename,
 811                         sizeof filename,
 812                         "%s/%s",
 813                         ctdl_netout_dir,
 814                         filedir_entry->d_name
 815                 );
 816
 817                 i = is_valid_node(&nexthop,
 818                                   NULL,
 819                                   NextHop,
 820                                   working_ignetcfg,
 821                                   the_netmap);
 822
 823                 if ( (i != 0) || (StrLength(nexthop) > 0) ) {
 824                         unlink(filename);
 825                 }
 826         }
 827         FreeStrBuf(&NextHop);
 828         free(d);
 829         closedir(dp);
 830 }
 831
 832
 833
 834
 835 /*
 836  * It's ok if these directories already exist.  Just fail silently.
 837  */
 838 void create_spool_dirs(void) {
 839         if ((mkdir(ctdl_spool_dir, 0700) != 0) && (errno != EEXIST))
 840                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_spool_dir, strerror(errno));
 841         if (chown(ctdl_spool_dir, CTDLUID, (-1)) != 0)
 842                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_spool_dir, strerror(errno));
 843         if ((mkdir(ctdl_netin_dir, 0700) != 0) && (errno != EEXIST))
 844                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netin_dir, strerror(errno));
 845         if (chown(ctdl_netin_dir, CTDLUID, (-1)) != 0)
 846                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netin_dir, strerror(errno));
 847         if ((mkdir(ctdl_nettmp_dir, 0700) != 0) && (errno != EEXIST))
 848                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 849         if (chown(ctdl_nettmp_dir, CTDLUID, (-1)) != 0)
 850                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 851         if ((mkdir(ctdl_netout_dir, 0700) != 0) && (errno != EEXIST))
 852                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netout_dir, strerror(errno));
 853         if (chown(ctdl_netout_dir, CTDLUID, (-1)) != 0)
 854                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netout_dir, strerror(errno));
 855 }
 856
 857 /*
 858  * Module entry point
 859  */
 860 CTDL_MODULE_INIT(network_spool)
 861 {
 862         if (!threading)
 863         {
 864 //              CtdlREGISTERRoomCfgType(subpending, ParseSubPendingLine, 0, SerializeSubPendingLine, DeleteSubPendingLine); /// todo: move this to mailinglist manager
 865 //              CtdlREGISTERRoomCfgType(unsubpending, ParseUnSubPendingLine0, SerializeUnSubPendingLine, DeleteUnSubPendingLine); /// todo: move this to mailinglist manager
 866 //              CtdlREGISTERRoomCfgType(lastsent, ParseLastSent, 1, SerializeLastSent, DeleteLastSent);
 867 ///             CtdlREGISTERRoomCfgType(ignet_push_share, ParseIgnetPushShare, 0, SerializeIgnetPushShare, DeleteIgnetPushShare); // todo: move this to the ignet client
 868                 CtdlREGISTERRoomCfgType(listrecp, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 869                 CtdlREGISTERRoomCfgType(digestrecp, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 870                 CtdlREGISTERRoomCfgType(participate, ParseGeneric, 0, SerializeGeneric, DeleteGenericCfgLine);
 871                 CtdlREGISTERRoomCfgType(roommailalias, ParseRoomAlias, 0, SerializeGeneric, DeleteGenericCfgLine);
 872
 873                 create_spool_dirs();
 874 //////todo              CtdlRegisterCleanupHook(destroy_network_queue_room);
 875         }
 876         return "network_spool";
 877 }