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