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 *OneRNCFG)
  98 {
  99         RoomNetCfgLine *nptr;
 100         nptr = (RoomNetCfgLine *)
 101                 malloc(sizeof(RoomNetCfgLine));
 102
 103         OneRNCFG->lastsent = extract_long(LinePos, 0);
 104         OneRNCFG->NetConfigs[ThisOne->C] = nptr;
 105 }
 106
 107 void ParseRoomAlias(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *rncfg)
 108 {
 109 /*
 110         if (rncfg->RNCfg->sender != NULL)
 111                 continue; / * just one alowed... * /
 112         extract_token(nptr->name, buf, 1, '|', sizeof nptr->name);
 113         rncfg->RNCfg->sender = nptr;
 114 */
 115 }
 116
 117 void ParseSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 118 {
 119         if (time(NULL) - extract_long(LinePos, 3) > EXP)
 120                 return; /* expired subscription... */
 121
 122         ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
 123 }
 124 void ParseUnSubPendingLine(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCFG)
 125 {
 126         if (time(NULL) - extract_long(LinePos, 2) > EXP)
 127                 return; /* expired subscription... */
 128
 129         ParseGeneric(ThisOne, Line, LinePos, OneRNCFG);
 130 }
 131
 132
 133 void SerializeLastSent(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *RNCfg, RoomNetCfgLine *data)
 134 {
 135         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 136         StrBufAppendPrintf(OutputBuffer, "|%ld\n", RNCfg->lastsent);
 137 }
 138
 139 void DeleteLastSent(const CfgLineType *ThisOne, RoomNetCfgLine **data)
 140 {
 141         free(*data);
 142         *data = NULL;
 143 }
 144
 145
 146
 147
 148 /*
 149  * Batch up and send all outbound traffic from the current room
 150  */
 151 void network_spoolout_room(RoomProcList *room_to_spool,
 152                            HashList *working_ignetcfg,
 153                            HashList *the_netmap)
 154 {
 155         struct CitContext *CCC = CC;
 156         char buf[SIZ];
 157         SpoolControl sc;
 158         int i;
 159
 160         memset(&sc, 0, sizeof(SpoolControl));
 161         sc.RNCfg = room_to_spool->OneRNCfg;
 162         sc.lastsent = room_to_spool->OneRNCfg->lastsent;
 163         sc.working_ignetcfg = working_ignetcfg;
 164         sc.the_netmap = the_netmap;
 165
 166         if ((sc.RNCfg->NetConfigs[listrecp] == NULL) &&
 167             (sc.RNCfg->NetConfigs[digestrecp] == NULL) &&
 168             (sc.RNCfg->NetConfigs[participate] == NULL) &&
 169             (sc.RNCfg->NetConfigs[ignet_push_share] == NULL))
 170         {
 171                 /* nothing to do for this room... */
 172                 return;
 173         }
 174
 175         /*
 176          * If the room doesn't exist, don't try to perform its networking tasks.
 177          * Normally this should never happen, but once in a while maybe a room gets
 178          * queued for networking and then deleted before it can happen.
 179          */
 180         if (CtdlGetRoom(&CCC->room, room_to_spool->name) != 0) {
 181                 syslog(LOG_CRIT, "ERROR: cannot load <%s>\n", room_to_spool->name);
 182                 return;
 183         }
 184
 185
 186         syslog(LOG_INFO, "Networking started for <%s>\n", CCC->room.QRname);
 187
 188         /* If there are digest recipients, we have to build a digest */
 189         if (sc.RNCfg->NetConfigs[digestrecp] != NULL) {
 190                 sc.digestfp = tmpfile();
 191                 fprintf(sc.digestfp, "Content-type: text/plain\n\n");
 192         }
 193
 194         /* Do something useful */
 195         CtdlForEachMessage(MSGS_GT, sc.lastsent, NULL, NULL, NULL,
 196                 network_spool_msg, &sc);
 197
 198         /* If we wrote a digest, deliver it and then close it */
 199         if (StrLength(sc.RNCfg->Sender) > 0)
 200         {
 201                 long len;
 202                 len = StrLength(sc.RNCfg->Sender);
 203                 if (len + 1 > sizeof(buf))
 204                         len = sizeof(buf) - 1;
 205                 memcpy(buf, ChrPtr(sc.RNCfg->Sender), len);
 206                 buf[len] = '\0';
 207         }
 208         else
 209         {
 210                 snprintf(buf, sizeof buf, "room_%s@%s",
 211                          CCC->room.QRname, config.c_fqdn);
 212         }
 213
 214         for (i=0; buf[i]; ++i) {
 215                 buf[i] = tolower(buf[i]);
 216                 if (isspace(buf[i])) buf[i] = '_';
 217         }
 218         if (sc.digestfp != NULL) {
 219                 fprintf(sc.digestfp,
 220                         " -----------------------------------"
 221                         "------------------------------------"
 222                         "-------\n"
 223                         "You are subscribed to the '%s' "
 224                         "list.\n"
 225                         "To post to the list: %s\n",
 226                         CCC->room.QRname, buf
 227                 );
 228                 network_deliver_digest(&sc);    /* deliver and close */
 229         }
 230
 231         /* Now rewrite the config file */
 232         if (sc.lastsent != room_to_spool->OneRNCfg->lastsent)
 233         {
 234                 room_to_spool->OneRNCfg->lastsent = sc.lastsent;
 235                 room_to_spool->OneRNCfg->changed = 1;
 236         }
 237         end_critical_section(S_NETCONFIGS);
 238 }
 239
 240 /*
 241  * Process a buffer containing a single message from a single file
 242  * from the inbound queue
 243  */
 244 void network_process_buffer(char *buffer, long size, HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 245 {
 246         struct CitContext *CCC = CC;
 247         StrBuf *Buf = NULL;
 248         struct CtdlMessage *msg = NULL;
 249         long pos;
 250         int field;
 251         struct recptypes *recp = NULL;
 252         char target_room[ROOMNAMELEN];
 253         struct ser_ret sermsg;
 254         char *oldpath = NULL;
 255         char filename[PATH_MAX];
 256         FILE *fp;
 257         const StrBuf *nexthop = NULL;
 258         unsigned char firstbyte;
 259         unsigned char lastbyte;
 260
 261         QN_syslog(LOG_DEBUG, "network_process_buffer() processing %ld bytes\n", size);
 262
 263         /* Validate just a little bit.  First byte should be FF and * last byte should be 00. */
 264         firstbyte = buffer[0];
 265         lastbyte = buffer[size-1];
 266         if ( (firstbyte != 255) || (lastbyte != 0) ) {
 267                 QN_syslog(LOG_ERR, "Corrupt message ignored.  Length=%ld, firstbyte = %d, lastbyte = %d\n",
 268                           size, firstbyte, lastbyte);
 269                 return;
 270         }
 271
 272         /* Set default target room to trash */
 273         strcpy(target_room, TWITROOM);
 274
 275         /* Load the message into memory */
 276         msg = (struct CtdlMessage *) malloc(sizeof(struct CtdlMessage));
 277         memset(msg, 0, sizeof(struct CtdlMessage));
 278         msg->cm_magic = CTDLMESSAGE_MAGIC;
 279         msg->cm_anon_type = buffer[1];
 280         msg->cm_format_type = buffer[2];
 281
 282         for (pos = 3; pos < size; ++pos) {
 283                 field = buffer[pos];
 284                 msg->cm_fields[field] = strdup(&buffer[pos+1]);
 285                 pos = pos + strlen(&buffer[(int)pos]);
 286         }
 287
 288         /* Check for message routing */
 289         if (msg->cm_fields['D'] != NULL) {
 290                 if (strcasecmp(msg->cm_fields['D'], config.c_nodename)) {
 291
 292                         /* route the message */
 293                         Buf = NewStrBufPlain(msg->cm_fields['D'], -1);
 294                         if (CtdlIsValidNode(&nexthop,
 295                                             NULL,
 296                                             Buf,
 297                                             working_ignetcfg,
 298                                             the_netmap) == 0)
 299                         {
 300                                 /* prepend our node to the path */
 301                                 if (msg->cm_fields['P'] != NULL) {
 302                                         oldpath = msg->cm_fields['P'];
 303                                         msg->cm_fields['P'] = NULL;
 304                                 }
 305                                 else {
 306                                         oldpath = strdup("unknown_user");
 307                                 }
 308                                 size = strlen(oldpath) + SIZ;
 309                                 msg->cm_fields['P'] = malloc(size);
 310                                 snprintf(msg->cm_fields['P'], size, "%s!%s",
 311                                         config.c_nodename, oldpath);
 312                                 free(oldpath);
 313
 314                                 /* serialize the message */
 315                                 serialize_message(&sermsg, msg);
 316
 317                                 /* now send it */
 318                                 if (StrLength(nexthop) == 0) {
 319                                         nexthop = Buf;
 320                                 }
 321                                 snprintf(filename,
 322                                          sizeof filename,
 323                                          "%s/%s@%lx%x",
 324                                          ctdl_netout_dir,
 325                                          ChrPtr(nexthop),
 326                                          time(NULL),
 327                                          rand()
 328                                 );
 329                                 QN_syslog(LOG_DEBUG, "Appending to %s\n", filename);
 330                                 fp = fopen(filename, "ab");
 331                                 if (fp != NULL) {
 332                                         fwrite(sermsg.ser, sermsg.len, 1, fp);
 333                                         fclose(fp);
 334                                 }
 335                                 else {
 336                                         QN_syslog(LOG_ERR, "%s: %s\n", filename, strerror(errno));
 337                                 }
 338                                 free(sermsg.ser);
 339                                 CtdlFreeMessage(msg);
 340                                 FreeStrBuf(&Buf);
 341                                 return;
 342                         }
 343
 344                         else {  /* invalid destination node name */
 345                                 FreeStrBuf(&Buf);
 346
 347                                 network_bounce(msg,
 348 "A message you sent could not be delivered due to an invalid destination node"
 349 " name.  Please check the address and try sending the message again.\n");
 350                                 msg = NULL;
 351                                 return;
 352
 353                         }
 354                 }
 355         }
 356
 357         /*
 358          * Check to see if we already have a copy of this message, and
 359          * abort its processing if so.  (We used to post a warning to Aide>
 360          * every time this happened, but the network is now so densely
 361          * connected that it's inevitable.)
 362          */
 363         if (network_usetable(msg) != 0) {
 364                 CtdlFreeMessage(msg);
 365                 return;
 366         }
 367
 368         /* Learn network topology from the path */
 369         if ((msg->cm_fields['N'] != NULL) && (msg->cm_fields['P'] != NULL)) {
 370                 NetworkLearnTopology(msg->cm_fields['N'],
 371                                      msg->cm_fields['P'],
 372                                      the_netmap,
 373                                      netmap_changed);
 374         }
 375
 376         /* Is the sending node giving us a very persuasive suggestion about
 377          * which room this message should be saved in?  If so, go with that.
 378          */
 379         if (msg->cm_fields['C'] != NULL) {
 380                 safestrncpy(target_room, msg->cm_fields['C'], sizeof target_room);
 381         }
 382
 383         /* Otherwise, does it have a recipient?  If so, validate it... */
 384         else if (msg->cm_fields['R'] != NULL) {
 385                 recp = validate_recipients(msg->cm_fields['R'], NULL, 0);
 386                 if (recp != NULL) if (recp->num_error != 0) {
 387                         network_bounce(msg,
 388                                 "A message you sent could not be delivered due to an invalid address.\n"
 389                                 "Please check the address and try sending the message again.\n");
 390                         msg = NULL;
 391                         free_recipients(recp);
 392                         QNM_syslog(LOG_DEBUG, "Bouncing message due to invalid recipient address.\n");
 393                         return;
 394                 }
 395                 strcpy(target_room, "");        /* no target room if mail */
 396         }
 397
 398         /* Our last shot at finding a home for this message is to see if
 399          * it has the O field (Originating room) set.
 400          */
 401         else if (msg->cm_fields['O'] != NULL) {
 402                 safestrncpy(target_room, msg->cm_fields['O'], sizeof target_room);
 403         }
 404
 405         /* Strip out fields that are only relevant during transit */
 406         if (msg->cm_fields['D'] != NULL) {
 407                 free(msg->cm_fields['D']);
 408                 msg->cm_fields['D'] = NULL;
 409         }
 410         if (msg->cm_fields['C'] != NULL) {
 411                 free(msg->cm_fields['C']);
 412                 msg->cm_fields['C'] = NULL;
 413         }
 414
 415         /* save the message into a room */
 416         if (PerformNetprocHooks(msg, target_room) == 0) {
 417                 msg->cm_flags = CM_SKIP_HOOKS;
 418                 CtdlSubmitMsg(msg, recp, target_room, 0);
 419         }
 420         CtdlFreeMessage(msg);
 421         free_recipients(recp);
 422 }
 423
 424
 425 /*
 426  * Process a single message from a single file from the inbound queue
 427  */
 428 void network_process_message(FILE *fp,
 429                              long msgstart,
 430                              long msgend,
 431                              HashList *working_ignetcfg,
 432                              HashList *the_netmap,
 433                              int *netmap_changed)
 434 {
 435         long hold_pos;
 436         long size;
 437         char *buffer;
 438
 439         hold_pos = ftell(fp);
 440         size = msgend - msgstart + 1;
 441         buffer = malloc(size);
 442         if (buffer != NULL) {
 443                 fseek(fp, msgstart, SEEK_SET);
 444                 if (fread(buffer, size, 1, fp) > 0) {
 445                         network_process_buffer(buffer,
 446                                                size,
 447                                                working_ignetcfg,
 448                                                the_netmap,
 449                                                netmap_changed);
 450                 }
 451                 free(buffer);
 452         }
 453
 454         fseek(fp, hold_pos, SEEK_SET);
 455 }
 456
 457
 458 /*
 459  * Process a single file from the inbound queue
 460  */
 461 void network_process_file(char *filename,
 462                           HashList *working_ignetcfg,
 463                           HashList *the_netmap,
 464                           int *netmap_changed)
 465 {
 466         struct CitContext *CCC = CC;
 467         FILE *fp;
 468         long msgstart = (-1L);
 469         long msgend = (-1L);
 470         long msgcur = 0L;
 471         int ch;
 472
 473
 474         fp = fopen(filename, "rb");
 475         if (fp == NULL) {
 476                 QN_syslog(LOG_CRIT, "Error opening %s: %s\n", filename, strerror(errno));
 477                 return;
 478         }
 479
 480         fseek(fp, 0L, SEEK_END);
 481         QN_syslog(LOG_INFO, "network: processing %ld bytes from %s\n", ftell(fp), filename);
 482         rewind(fp);
 483
 484         /* Look for messages in the data stream and break them out */
 485         while (ch = getc(fp), ch >= 0) {
 486
 487                 if (ch == 255) {
 488                         if (msgstart >= 0L) {
 489                                 msgend = msgcur - 1;
 490                                 network_process_message(fp,
 491                                                         msgstart,
 492                                                         msgend,
 493                                                         working_ignetcfg,
 494                                                         the_netmap,
 495                                                         netmap_changed);
 496                         }
 497                         msgstart = msgcur;
 498                 }
 499
 500                 ++msgcur;
 501         }
 502
 503         msgend = msgcur - 1;
 504         if (msgstart >= 0L) {
 505                 network_process_message(fp,
 506                                         msgstart,
 507                                         msgend,
 508                                         working_ignetcfg,
 509                                         the_netmap,
 510                                         netmap_changed);
 511         }
 512
 513         fclose(fp);
 514         unlink(filename);
 515 }
 516
 517
 518 /*
 519  * Process anything in the inbound queue
 520  */
 521 void network_do_spoolin(HashList *working_ignetcfg, HashList *the_netmap, int *netmap_changed)
 522 {
 523         struct CitContext *CCC = CC;
 524         DIR *dp;
 525         struct dirent *d;
 526         struct dirent *filedir_entry;
 527         struct stat statbuf;
 528         char filename[PATH_MAX];
 529         static time_t last_spoolin_mtime = 0L;
 530         int d_type = 0;
 531         int d_namelen;
 532
 533         /*
 534          * Check the spoolin directory's modification time.  If it hasn't
 535          * been touched, we don't need to scan it.
 536          */
 537         if (stat(ctdl_netin_dir, &statbuf)) return;
 538         if (statbuf.st_mtime == last_spoolin_mtime) {
 539                 QNM_syslog(LOG_DEBUG, "network: nothing in inbound queue\n");
 540                 return;
 541         }
 542         last_spoolin_mtime = statbuf.st_mtime;
 543         QNM_syslog(LOG_DEBUG, "network: processing inbound queue\n");
 544
 545         /*
 546          * Ok, there's something interesting in there, so scan it.
 547          */
 548         dp = opendir(ctdl_netin_dir);
 549         if (dp == NULL) return;
 550
 551         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 552         if (d == NULL) {
 553                 closedir(dp);
 554                 return;
 555         }
 556
 557         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 558                (filedir_entry != NULL))
 559         {
 560 #ifdef _DIRENT_HAVE_D_NAMLEN
 561                 d_namelen = filedir_entry->d_namelen;
 562
 563 #else
 564                 d_namelen = strlen(filedir_entry->d_name);
 565 #endif
 566
 567 #ifdef _DIRENT_HAVE_D_TYPE
 568                 d_type = filedir_entry->d_type;
 569 #else
 570                 d_type = DT_UNKNOWN;
 571 #endif
 572                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 573                         continue; /* Ignore backup files... */
 574
 575                 if ((d_namelen == 1) &&
 576                     (filedir_entry->d_name[0] == '.'))
 577                         continue;
 578
 579                 if ((d_namelen == 2) &&
 580                     (filedir_entry->d_name[0] == '.') &&
 581                     (filedir_entry->d_name[1] == '.'))
 582                         continue;
 583
 584                 if (d_type == DT_UNKNOWN) {
 585                         struct stat s;
 586                         char path[PATH_MAX];
 587
 588                         snprintf(path,
 589                                  PATH_MAX,
 590                                  "%s/%s",
 591                                  ctdl_netin_dir,
 592                                  filedir_entry->d_name);
 593
 594                         if (lstat(path, &s) == 0) {
 595                                 d_type = IFTODT(s.st_mode);
 596                         }
 597                 }
 598
 599                 switch (d_type)
 600                 {
 601                 case DT_DIR:
 602                         break;
 603                 case DT_LNK: /* TODO: check whether its a file or a directory */
 604                 case DT_REG:
 605                         snprintf(filename,
 606                                 sizeof filename,
 607                                 "%s/%s",
 608                                 ctdl_netin_dir,
 609                                 d->d_name
 610                         );
 611                         network_process_file(filename,
 612                                              working_ignetcfg,
 613                                              the_netmap,
 614                                              netmap_changed);
 615                 }
 616         }
 617
 618         closedir(dp);
 619         free(d);
 620 }
 621
 622 /*
 623  * Step 1: consolidate files in the outbound queue into one file per neighbor node
 624  * Step 2: delete any files in the outbound queue that were for neighbors who no longer exist.
 625  */
 626 void network_consolidate_spoolout(HashList *working_ignetcfg, HashList *the_netmap)
 627 {
 628         struct CitContext *CCC = CC;
 629         IOBuffer IOB;
 630         FDIOBuffer FDIO;
 631         int d_namelen;
 632         DIR *dp;
 633         struct dirent *d;
 634         struct dirent *filedir_entry;
 635         const char *pch;
 636         char spooloutfilename[PATH_MAX];
 637         char filename[PATH_MAX];
 638         const StrBuf *nexthop;
 639         StrBuf *NextHop;
 640         int i;
 641         struct stat statbuf;
 642         int nFailed = 0;
 643         int d_type = 0;
 644
 645
 646         /* Step 1: consolidate files in the outbound queue into one file per neighbor node */
 647         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 648         if (d == NULL)  return;
 649
 650         dp = opendir(ctdl_netout_dir);
 651         if (dp == NULL) {
 652                 free(d);
 653                 return;
 654         }
 655
 656         NextHop = NewStrBuf();
 657         memset(&IOB, 0, sizeof(IOBuffer));
 658         memset(&FDIO, 0, sizeof(FDIOBuffer));
 659         FDIO.IOB = &IOB;
 660
 661         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 662                (filedir_entry != NULL))
 663         {
 664 #ifdef _DIRENT_HAVE_D_NAMLEN
 665                 d_namelen = filedir_entry->d_namelen;
 666
 667 #else
 668                 d_namelen = strlen(filedir_entry->d_name);
 669 #endif
 670
 671 #ifdef _DIRENT_HAVE_D_TYPE
 672                 d_type = filedir_entry->d_type;
 673 #else
 674                 d_type = DT_UNKNOWN;
 675 #endif
 676                 if (d_type == DT_DIR)
 677                         continue;
 678
 679                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 680                         continue; /* Ignore backup files... */
 681
 682                 if ((d_namelen == 1) &&
 683                     (filedir_entry->d_name[0] == '.'))
 684                         continue;
 685
 686                 if ((d_namelen == 2) &&
 687                     (filedir_entry->d_name[0] == '.') &&
 688                     (filedir_entry->d_name[1] == '.'))
 689                         continue;
 690
 691                 pch = strchr(filedir_entry->d_name, '@');
 692                 if (pch == NULL)
 693                         continue;
 694
 695                 snprintf(filename,
 696                          sizeof filename,
 697                          "%s/%s",
 698                          ctdl_netout_dir,
 699                          filedir_entry->d_name);
 700
 701                 StrBufPlain(NextHop,
 702                             filedir_entry->d_name,
 703                             pch - filedir_entry->d_name);
 704
 705                 snprintf(spooloutfilename,
 706                          sizeof spooloutfilename,
 707                          "%s/%s",
 708                          ctdl_netout_dir,
 709                          ChrPtr(NextHop));
 710
 711                 QN_syslog(LOG_DEBUG, "Consolidate %s to %s\n", filename, ChrPtr(NextHop));
 712                 if (CtdlNetworkTalkingTo(SKEY(NextHop), NTT_CHECK)) {
 713                         nFailed++;
 714                         QN_syslog(LOG_DEBUG,
 715                                   "Currently online with %s - skipping for now\n",
 716                                   ChrPtr(NextHop)
 717                                 );
 718                 }
 719                 else {
 720                         size_t dsize;
 721                         size_t fsize;
 722                         int infd, outfd;
 723                         const char *err = NULL;
 724                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_ADD);
 725
 726                         infd = open(filename, O_RDONLY);
 727                         if (infd == -1) {
 728                                 nFailed++;
 729                                 QN_syslog(LOG_ERR,
 730                                           "failed to open %s for reading due to %s; skipping.\n",
 731                                           filename, strerror(errno)
 732                                         );
 733                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 734                                 continue;
 735                         }
 736
 737                         outfd = open(spooloutfilename,
 738                                   O_EXCL|O_CREAT|O_NONBLOCK|O_WRONLY,
 739                                   S_IRUSR|S_IWUSR);
 740                         if (outfd == -1)
 741                         {
 742                                 outfd = open(spooloutfilename,
 743                                              O_EXCL|O_NONBLOCK|O_WRONLY,
 744                                              S_IRUSR | S_IWUSR);
 745                         }
 746                         if (outfd == -1) {
 747                                 nFailed++;
 748                                 QN_syslog(LOG_ERR,
 749                                           "failed to open %s for reading due to %s; skipping.\n",
 750                                           spooloutfilename, strerror(errno)
 751                                         );
 752                                 close(infd);
 753                                 CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 754                                 continue;
 755                         }
 756
 757                         dsize = lseek(outfd, 0, SEEK_END);
 758                         lseek(outfd, -dsize, SEEK_SET);
 759
 760                         fstat(infd, &statbuf);
 761                         fsize = statbuf.st_size;
 762 /*
 763                         fsize = lseek(infd, 0, SEEK_END);
 764 */
 765                         IOB.fd = infd;
 766                         FDIOBufferInit(&FDIO, &IOB, outfd, fsize + dsize);
 767                         FDIO.ChunkSendRemain = fsize;
 768                         FDIO.TotalSentAlready = dsize;
 769                         err = NULL;
 770                         errno = 0;
 771                         do {} while ((FileMoveChunked(&FDIO, &err) > 0) && (err == NULL));
 772                         if (err == NULL) {
 773                                 unlink(filename);
 774                         }
 775                         else {
 776                                 nFailed++;
 777                                 QN_syslog(LOG_ERR,
 778                                           "failed to append to %s [%s]; rolling back..\n",
 779                                           spooloutfilename, strerror(errno)
 780                                         );
 781                                 /* whoops partial append?? truncate spooloutfilename again! */
 782                                 ftruncate(outfd, dsize);
 783                         }
 784                         FDIOBufferDelete(&FDIO);
 785                         close(infd);
 786                         close(outfd);
 787                         CtdlNetworkTalkingTo(SKEY(NextHop), NTT_REMOVE);
 788                 }
 789         }
 790         closedir(dp);
 791
 792         if (nFailed > 0) {
 793                 FreeStrBuf(&NextHop);
 794                 QN_syslog(LOG_INFO,
 795                           "skipping Spoolcleanup because of %d files unprocessed.\n",
 796                           nFailed
 797                         );
 798
 799                 return;
 800         }
 801
 802         /* Step 2: delete any files in the outbound queue that were for neighbors who no longer exist */
 803         dp = opendir(ctdl_netout_dir);
 804         if (dp == NULL) {
 805                 FreeStrBuf(&NextHop);
 806                 free(d);
 807                 return;
 808         }
 809
 810         while ((readdir_r(dp, d, &filedir_entry) == 0) &&
 811                (filedir_entry != NULL))
 812         {
 813 #ifdef _DIRENT_HAVE_D_NAMLEN
 814                 d_namelen = filedir_entry->d_namelen;
 815
 816 #else
 817                 d_namelen = strlen(filedir_entry->d_name);
 818 #endif
 819
 820 #ifdef _DIRENT_HAVE_D_TYPE
 821                 d_type = filedir_entry->d_type;
 822 #else
 823                 d_type = DT_UNKNOWN;
 824 #endif
 825                 if (d_type == DT_DIR)
 826                         continue;
 827
 828                 if ((d_namelen == 1) &&
 829                     (filedir_entry->d_name[0] == '.'))
 830                         continue;
 831
 832                 if ((d_namelen == 2) &&
 833                     (filedir_entry->d_name[0] == '.') &&
 834                     (filedir_entry->d_name[1] == '.'))
 835                         continue;
 836
 837                 pch = strchr(filedir_entry->d_name, '@');
 838                 if (pch == NULL) /* no @ in name? consolidated file. */
 839                         continue;
 840
 841                 StrBufPlain(NextHop,
 842                             filedir_entry->d_name,
 843                             pch - filedir_entry->d_name);
 844
 845                 snprintf(filename,
 846                         sizeof filename,
 847                         "%s/%s",
 848                         ctdl_netout_dir,
 849                         filedir_entry->d_name
 850                 );
 851
 852                 i = CtdlIsValidNode(&nexthop,
 853                                     NULL,
 854                                     NextHop,
 855                                     working_ignetcfg,
 856                                     the_netmap);
 857
 858                 if ( (i != 0) || (StrLength(nexthop) > 0) ) {
 859                         unlink(filename);
 860                 }
 861         }
 862         FreeStrBuf(&NextHop);
 863         free(d);
 864         closedir(dp);
 865 }
 866
 867
 868
 869
 870 /*
 871  * It's ok if these directories already exist.  Just fail silently.
 872  */
 873 void create_spool_dirs(void) {
 874         if ((mkdir(ctdl_spool_dir, 0700) != 0) && (errno != EEXIST))
 875                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_spool_dir, strerror(errno));
 876         if (chown(ctdl_spool_dir, CTDLUID, (-1)) != 0)
 877                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_spool_dir, strerror(errno));
 878         if ((mkdir(ctdl_netin_dir, 0700) != 0) && (errno != EEXIST))
 879                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netin_dir, strerror(errno));
 880         if (chown(ctdl_netin_dir, CTDLUID, (-1)) != 0)
 881                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netin_dir, strerror(errno));
 882         if ((mkdir(ctdl_nettmp_dir, 0700) != 0) && (errno != EEXIST))
 883                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 884         if (chown(ctdl_nettmp_dir, CTDLUID, (-1)) != 0)
 885                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_nettmp_dir, strerror(errno));
 886         if ((mkdir(ctdl_netout_dir, 0700) != 0) && (errno != EEXIST))
 887                 syslog(LOG_EMERG, "unable to create directory [%s]: %s", ctdl_netout_dir, strerror(errno));
 888         if (chown(ctdl_netout_dir, CTDLUID, (-1)) != 0)
 889                 syslog(LOG_EMERG, "unable to set the access rights for [%s]: %s", ctdl_netout_dir, strerror(errno));
 890 }
 891
 892 /*
 893  * Module entry point
 894  */
 895 CTDL_MODULE_INIT(network_spool)
 896 {
 897         if (!threading)
 898         {
 899                 CtdlREGISTERRoomCfgType(subpending,       ParseSubPendingLine,   0, 5, SerializeGeneric,  DeleteGenericCfgLine); /// todo: move this to mailinglist manager
 900                 CtdlREGISTERRoomCfgType(unsubpending,     ParseUnSubPendingLine, 0, 4, SerializeGeneric,  DeleteGenericCfgLine); /// todo: move this to mailinglist manager
 901                 CtdlREGISTERRoomCfgType(lastsent,         ParseLastSent,         1, 1, SerializeLastSent, DeleteLastSent);
 902                 CtdlREGISTERRoomCfgType(ignet_push_share, ParseGeneric,          0, 2, SerializeGeneric,  DeleteGenericCfgLine); // [remotenode|remoteroomname (optional)]// todo: move this to the ignet client
 903                 CtdlREGISTERRoomCfgType(listrecp,         ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 904                 CtdlREGISTERRoomCfgType(digestrecp,       ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 905                 CtdlREGISTERRoomCfgType(participate,      ParseGeneric,          0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 906                 CtdlREGISTERRoomCfgType(roommailalias,    ParseRoomAlias,        0, 1, SerializeGeneric,  DeleteGenericCfgLine);
 907
 908                 create_spool_dirs();
 909 //////todo              CtdlRegisterCleanupHook(destroy_network_queue_room);
 910         }
 911         return "network_spool";
 912 }