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