citadel/modules/rssclient/serv_rssclient.c

   1 /*
   2  * Bring external RSS feeds into rooms.
   3  *
   4  * Copyright (c) 2007-2010 by the citadel.org team
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <stdio.h>
  24
  25 #if TIME_WITH_SYS_TIME
  26 # include <sys/time.h>
  27 # include <time.h>
  28 #else
  29 # if HAVE_SYS_TIME_H
  30 #  include <sys/time.h>
  31 # else
  32 #  include <time.h>
  33 # endif
  34 #endif
  35
  36 #include <ctype.h>
  37 #include <string.h>
  38 #include <errno.h>
  39 #include <sys/types.h>
  40 #include <sys/stat.h>
  41 #include <expat.h>
  42 #include <curl/curl.h>
  43 #include <libcitadel.h>
  44 #include "citadel.h"
  45 #include "server.h"
  46 #include "citserver.h"
  47 #include "support.h"
  48 #include "config.h"
  49 #include "threads.h"
  50 #include "ctdl_module.h"
  51 #include "msgbase.h"
  52 #include "parsedate.h"
  53 #include "database.h"
  54 #include "citadel_dirs.h"
  55 #include "md5.h"
  56 #include "context.h"
  57 #include "event_client.h"
  58 #include "rss_atom_parser.h"
  59
  60
  61 #define TMP_MSGDATA 0xFF
  62 #define TMP_SHORTER_URL_OFFSET 0xFE
  63 #define TMP_SHORTER_URLS 0xFD
  64
  65 pthread_mutex_t RSSQueueMutex; /* locks the access to the following vars: */
  66 HashList *RSSQueueRooms = NULL; /* rss_room_counter */
  67 HashList *RSSFetchUrls = NULL; /* -> rss_aggregator; ->RefCount access to be locked too. */
  68
  69 eNextState RSSAggregatorTerminate(AsyncIO *IO);
  70
  71
  72 struct rssnetcfg *rnclist = NULL;
  73 void AppendLink(StrBuf *Message, StrBuf *link, StrBuf *LinkTitle, const char *Title)
  74 {
  75         if (StrLength(link) > 0)
  76         {
  77                 StrBufAppendBufPlain(Message, HKEY("<a href=\""), 0);
  78                 StrBufAppendBuf(Message, link, 0);
  79                 StrBufAppendBufPlain(Message, HKEY("\">"), 0);
  80                 if (StrLength(LinkTitle) > 0)
  81                         StrBufAppendBuf(Message, LinkTitle, 0);
  82                 else if ((Title != NULL) && !IsEmptyStr(Title))
  83                         StrBufAppendBufPlain(Message, Title, -1, 0);
  84                 else
  85                         StrBufAppendBuf(Message, link, 0);
  86                 StrBufAppendBufPlain(Message, HKEY("</a><br>\n"), 0);
  87         }
  88 }
  89 typedef struct __networker_save_message {
  90         AsyncIO IO;
  91         struct CtdlMessage *Msg;
  92         struct recptypes *recp;
  93         rss_aggregator *Cfg;
  94         StrBuf *MsgGUID;
  95         StrBuf *Message;
  96         struct UseTable ut;
  97 } networker_save_message;
  98
  99
 100 void DeleteRoomReference(long QRnumber)
 101 {
 102         HashPos *At;
 103         long HKLen;
 104         const char *HK;
 105         void *vData = NULL;
 106         rss_room_counter *pRoomC;
 107
 108         At = GetNewHashPos(RSSQueueRooms, 0);
 109
 110         GetHashPosFromKey(RSSQueueRooms, LKEY(QRnumber), At);
 111         GetHashPos(RSSQueueRooms, At, &HKLen, &HK, &vData);
 112         if (vData != NULL)
 113         {
 114                 pRoomC = (rss_room_counter *) vData;
 115                 pRoomC->count --;
 116                 if (pRoomC->count == 0)
 117                         DeleteEntryFromHash(RSSQueueRooms, At);
 118         }
 119         DeleteHashPos(&At);
 120 }
 121
 122 void UnlinkRooms(rss_aggregator *Cfg)
 123 {
 124
 125         DeleteRoomReference(Cfg->QRnumber);
 126         if (Cfg->OtherQRnumbers != NULL)
 127         {
 128                 long HKLen;
 129                 const char *HK;
 130                 HashPos *At;
 131                 void *vData;
 132
 133                 At = GetNewHashPos(Cfg->OtherQRnumbers, 0);
 134                 while (GetNextHashPos(Cfg->OtherQRnumbers, At, &HKLen, &HK, &vData) &&
 135                        (vData != NULL))
 136                 {
 137                         long *lData = (long*) vData;
 138                         DeleteRoomReference(*lData);
 139                 }
 140 /*
 141                 if (server_shutting_down)
 142                         break; /* TODO */
 143
 144                 DeleteHashPos(&At);
 145         }
 146
 147 }
 148
 149 void UnlinkRSSAggregator(rss_aggregator *Cfg)
 150 {
 151         HashPos *At;
 152
 153         UnlinkRooms(Cfg);
 154
 155         At = GetNewHashPos(RSSFetchUrls, 0);
 156         if (GetHashPosFromKey(RSSFetchUrls, SKEY(Cfg->Url), At) == 0)
 157         {
 158                 DeleteEntryFromHash(RSSFetchUrls, At);
 159         }
 160         DeleteHashPos(&At);
 161 }
 162
 163 eNextState FreeNetworkSaveMessage (AsyncIO *IO)
 164 {
 165         networker_save_message *Ctx = (networker_save_message *) IO->Data;
 166
 167         pthread_mutex_lock(&RSSQueueMutex);
 168         Ctx->Cfg->RefCount --;
 169
 170         if (Ctx->Cfg->RefCount == 0)
 171         {
 172                 UnlinkRSSAggregator(Ctx->Cfg);
 173
 174         }
 175         pthread_mutex_unlock(&RSSQueueMutex);
 176
 177         CtdlFreeMessage(Ctx->Msg);
 178         free_recipients(Ctx->recp);
 179         FreeStrBuf(&Ctx->Message);
 180         FreeStrBuf(&Ctx->MsgGUID);
 181         free(Ctx);
 182         return eAbort;
 183 }
 184
 185 eNextState AbortNetworkSaveMessage (AsyncIO *IO)
 186 {
 187         return eAbort; ///TODO
 188 }
 189
 190 eNextState RSSSaveMessage(AsyncIO *IO)
 191 {
 192         networker_save_message *Ctx = (networker_save_message *) IO->Data;
 193
 194         Ctx->Msg->cm_fields['M'] = SmashStrBuf(&Ctx->Message);
 195
 196         CtdlSubmitMsg(Ctx->Msg, Ctx->recp, NULL, 0);
 197
 198         /* write the uidl to the use table so we don't store this item again */
 199         cdb_store(CDB_USETABLE, SKEY(Ctx->MsgGUID), &Ctx->ut, sizeof(struct UseTable) );
 200
 201         return eTerminateConnection;
 202 }
 203
 204 eNextState RSS_FetchNetworkUsetableEntry(AsyncIO *IO)
 205 {
 206         struct cdbdata *cdbut;
 207         networker_save_message *Ctx = (networker_save_message *) IO->Data;
 208
 209         /* Find out if we've already seen this item */
 210         strcpy(Ctx->ut.ut_msgid, ChrPtr(Ctx->MsgGUID)); /// TODO
 211         Ctx->ut.ut_timestamp = time(NULL);
 212
 213         cdbut = cdb_fetch(CDB_USETABLE, SKEY(Ctx->MsgGUID));
 214 #ifndef DEBUG_RSS
 215         if (cdbut != NULL) {
 216                 /* Item has already been seen */
 217                 syslog(LOG_DEBUG, "%s has already been seen\n", ChrPtr(Ctx->MsgGUID));
 218                 cdb_free(cdbut);
 219
 220                 /* rewrite the record anyway, to update the timestamp */
 221                 cdb_store(CDB_USETABLE,
 222                           SKEY(Ctx->MsgGUID),
 223                           &Ctx->ut, sizeof(struct UseTable) );
 224                 return eAbort;
 225         }
 226         else
 227 #endif
 228         {
 229                 NextDBOperation(IO, RSSSaveMessage);
 230                 return eSendMore;
 231         }
 232 }
 233 void RSSQueueSaveMessage(struct CtdlMessage *Msg, struct recptypes *recp, StrBuf *MsgGUID, StrBuf *MessageBody, rss_aggregator *Cfg)
 234 {
 235         networker_save_message *Ctx;
 236
 237         Ctx = (networker_save_message *) malloc(sizeof(networker_save_message));
 238         memset(Ctx, 0, sizeof(networker_save_message));
 239
 240         Ctx->MsgGUID = MsgGUID;
 241         Ctx->Message = MessageBody;
 242         Ctx->Msg = Msg;
 243         Ctx->Cfg = Cfg;
 244         Ctx->recp = recp;
 245         Ctx->IO.Data = Ctx;
 246         Ctx->IO.CitContext = CloneContext(CC);
 247         Ctx->IO.Terminate = FreeNetworkSaveMessage;
 248         Ctx->IO.ShutdownAbort = AbortNetworkSaveMessage;
 249         QueueDBOperation(&Ctx->IO, RSS_FetchNetworkUsetableEntry);
 250 }
 251
 252
 253 /*
 254  * Commit a fetched and parsed RSS item to disk
 255  */
 256 void rss_save_item(rss_item *ri, rss_aggregator *Cfg)
 257 {
 258
 259         struct MD5Context md5context;
 260         u_char rawdigest[MD5_DIGEST_LEN];
 261         struct CtdlMessage *msg;
 262         struct recptypes *recp = NULL;
 263         int msglen = 0;
 264         StrBuf *Message;
 265         StrBuf *guid;
 266         StrBuf *Buf;
 267
 268         recp = (struct recptypes *) malloc(sizeof(struct recptypes));
 269         if (recp == NULL) return;
 270         memset(recp, 0, sizeof(struct recptypes));
 271         Buf = NewStrBufDup(Cfg->rooms);
 272         recp->recp_room = SmashStrBuf(&Buf);
 273         recp->num_room = Cfg->roomlist_parts;
 274         recp->recptypes_magic = RECPTYPES_MAGIC;
 275
 276         Cfg->RefCount ++;
 277         /* Construct a GUID to use in the S_USETABLE table.
 278          * If one is not present in the item itself, make one up.
 279          */
 280         if (ri->guid != NULL) {
 281                 StrBufSpaceToBlank(ri->guid);
 282                 StrBufTrim(ri->guid);
 283                 guid = NewStrBufPlain(HKEY("rss/"));
 284                 StrBufAppendBuf(guid, ri->guid, 0);
 285         }
 286         else {
 287                 MD5Init(&md5context);
 288                 if (ri->title != NULL) {
 289                         MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->title), StrLength(ri->title));
 290                 }
 291                 if (ri->link != NULL) {
 292                         MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->link), StrLength(ri->link));
 293                 }
 294                 MD5Final(rawdigest, &md5context);
 295                 guid = NewStrBufPlain(NULL, MD5_DIGEST_LEN * 2 + 12 /* _rss2ctdl*/);
 296                 StrBufHexEscAppend(guid, NULL, rawdigest, MD5_DIGEST_LEN);
 297                 StrBufAppendBufPlain(guid, HKEY("_rss2ctdl"), 0);
 298         }
 299
 300         /* translate Item into message. */
 301         syslog(LOG_DEBUG, "RSS: translating item...\n");
 302         if (ri->description == NULL) ri->description = NewStrBufPlain(HKEY(""));
 303         StrBufSpaceToBlank(ri->description);
 304         msg = malloc(sizeof(struct CtdlMessage));
 305         memset(msg, 0, sizeof(struct CtdlMessage));
 306         msg->cm_magic = CTDLMESSAGE_MAGIC;
 307         msg->cm_anon_type = MES_NORMAL;
 308         msg->cm_format_type = FMT_RFC822;
 309
 310         if (ri->guid != NULL) {
 311                 msg->cm_fields['E'] = strdup(ChrPtr(ri->guid));
 312         }
 313
 314         if (ri->author_or_creator != NULL) {
 315                 char *From;
 316                 StrBuf *Encoded = NULL;
 317                 int FromAt;
 318
 319                 From = html_to_ascii(ChrPtr(ri->author_or_creator),
 320                                      StrLength(ri->author_or_creator),
 321                                      512, 0);
 322                 StrBufPlain(ri->author_or_creator, From, -1);
 323                 StrBufTrim(ri->author_or_creator);
 324                 free(From);
 325
 326                 FromAt = strchr(ChrPtr(ri->author_or_creator), '@') != NULL;
 327                 if (!FromAt && StrLength (ri->author_email) > 0)
 328                 {
 329                         StrBufRFC2047encode(&Encoded, ri->author_or_creator);
 330                         msg->cm_fields['A'] = SmashStrBuf(&Encoded);
 331                         msg->cm_fields['P'] = SmashStrBuf(&ri->author_email);
 332                 }
 333                 else
 334                 {
 335                         if (FromAt)
 336                         {
 337                                 msg->cm_fields['A'] = SmashStrBuf(&ri->author_or_creator);
 338                                 msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
 339                         }
 340                         else
 341                         {
 342                                 StrBufRFC2047encode(&Encoded, ri->author_or_creator);
 343                                 msg->cm_fields['A'] = SmashStrBuf(&Encoded);
 344                                 msg->cm_fields['P'] = strdup("rss@localhost");
 345                         }
 346                 }
 347         }
 348         else {
 349                 msg->cm_fields['A'] = strdup("rss");
 350         }
 351
 352         msg->cm_fields['N'] = strdup(NODENAME);
 353         if (ri->title != NULL) {
 354                 long len;
 355                 char *Sbj;
 356                 StrBuf *Encoded, *QPEncoded;
 357
 358                 QPEncoded = NULL;
 359                 StrBufSpaceToBlank(ri->title);
 360                 len = StrLength(ri->title);
 361                 Sbj = html_to_ascii(ChrPtr(ri->title), len, 512, 0);
 362                 len = strlen(Sbj);
 363                 if (Sbj[len - 1] == '\n')
 364                 {
 365                         len --;
 366                         Sbj[len] = '\0';
 367                 }
 368                 Encoded = NewStrBufPlain(Sbj, len);
 369                 free(Sbj);
 370
 371                 StrBufTrim(Encoded);
 372                 StrBufRFC2047encode(&QPEncoded, Encoded);
 373
 374                 msg->cm_fields['U'] = SmashStrBuf(&QPEncoded);
 375                 FreeStrBuf(&Encoded);
 376         }
 377         msg->cm_fields['T'] = malloc(64);
 378         snprintf(msg->cm_fields['T'], 64, "%ld", ri->pubdate);
 379         if (ri->channel_title != NULL) {
 380                 if (StrLength(ri->channel_title) > 0) {
 381                         msg->cm_fields['O'] = strdup(ChrPtr(ri->channel_title));
 382                 }
 383         }
 384         if (ri->link == NULL)
 385                 ri->link = NewStrBufPlain(HKEY(""));
 386
 387 #if 0 /* temporarily disable shorter urls. */
 388         msg->cm_fields[TMP_SHORTER_URLS] = GetShorterUrls(ri->description);
 389 #endif
 390
 391         msglen += 1024 + StrLength(ri->link) + StrLength(ri->description) ;
 392
 393         Message = NewStrBufPlain(NULL, StrLength(ri->description));
 394
 395         StrBufPlain(Message, HKEY(
 396                             "Content-type: text/html; charset=\"UTF-8\"\r\n\r\n"
 397                             "<html><body>\n"));
 398 #if 0 /* disable shorter url for now. */
 399         msg->cm_fields[TMP_SHORTER_URL_OFFSET] = StrLength(Message);
 400 #endif
 401         StrBufAppendBuf(Message, ri->description, 0);
 402         StrBufAppendBufPlain(Message, HKEY("<br><br>\n"), 0);
 403
 404         AppendLink(Message, ri->link, ri->linkTitle, NULL);
 405         AppendLink(Message, ri->reLink, ri->reLinkTitle, "Reply to this");
 406         StrBufAppendBufPlain(Message, HKEY("</body></html>\n"), 0);
 407
 408         RSSQueueSaveMessage(msg, recp, guid, Message, Cfg);
 409 }
 410
 411
 412
 413 /*
 414  * Begin a feed parse
 415  */
 416 int rss_do_fetching(rss_aggregator *Cfg)
 417 {
 418         rss_item *ri;
 419
 420         time_t now;
 421         AsyncIO *IO;
 422
 423         now = time(NULL);
 424
 425         if ((Cfg->next_poll != 0) && (now < Cfg->next_poll))
 426                 return 0;
 427         Cfg->RefCount = 1;
 428
 429         ri = (rss_item*) malloc(sizeof(rss_item));
 430         memset(ri, 0, sizeof(rss_item));
 431         Cfg->Item = ri;
 432         IO = &Cfg->IO;
 433         IO->CitContext = CloneContext(CC);
 434         IO->Data = Cfg;
 435
 436
 437         syslog(LOG_DEBUG, "Fetching RSS feed <%s>\n", ChrPtr(Cfg->Url));
 438         ParseURL(&IO->ConnectMe, Cfg->Url, 80);
 439         CurlPrepareURL(IO->ConnectMe);
 440
 441         if (! evcurl_init(IO,
 442 //                        Ctx,
 443                           NULL,
 444                           "Citadel RSS Client",
 445                           ParseRSSReply,
 446                           RSSAggregatorTerminate))
 447         {
 448                 syslog(LOG_DEBUG, "Unable to initialize libcurl.\n");
 449                 return 0;
 450         }
 451
 452         evcurl_handle_start(IO);
 453         return 1;
 454 }
 455
 456
 457 void DeleteRssCfg(void *vptr)
 458 {
 459         rss_aggregator *rncptr = (rss_aggregator *)vptr;
 460
 461         FreeStrBuf(&rncptr->Url);
 462         FreeStrBuf(&rncptr->rooms);
 463         FreeStrBuf(&rncptr->CData);
 464         FreeStrBuf(&rncptr->Key);
 465
 466         DeleteHash(&rncptr->OtherQRnumbers);
 467
 468         if (rncptr->Item != NULL)
 469         {
 470                 FreeStrBuf(&rncptr->Item->guid);
 471                 FreeStrBuf(&rncptr->Item->title);
 472                 FreeStrBuf(&rncptr->Item->link);
 473                 FreeStrBuf(&rncptr->Item->linkTitle);
 474                 FreeStrBuf(&rncptr->Item->reLink);
 475                 FreeStrBuf(&rncptr->Item->reLinkTitle);
 476                 FreeStrBuf(&rncptr->Item->description);
 477                 FreeStrBuf(&rncptr->Item->channel_title);
 478                 FreeStrBuf(&rncptr->Item->author_or_creator);
 479                 FreeStrBuf(&rncptr->Item->author_url);
 480                 FreeStrBuf(&rncptr->Item->author_email);
 481
 482                 free(rncptr->Item);
 483         }
 484         free(rncptr);
 485 }
 486
 487 eNextState RSSAggregatorTerminate(AsyncIO *IO)
 488 {
 489         rss_aggregator *rncptr = (rss_aggregator *)IO->Data;
 490         HashPos *At;
 491         long HKLen;
 492         const char *HK;
 493         void *vData;
 494
 495         pthread_mutex_lock(&RSSQueueMutex);
 496         rncptr->RefCount --;
 497         if (rncptr->RefCount == 0)
 498         {
 499                 UnlinkRSSAggregator(rncptr);
 500
 501         }
 502         pthread_mutex_unlock(&RSSQueueMutex);
 503 /*
 504         At = GetNewHashPos(RSSFetchUrls, 0);
 505
 506         pthread_mutex_lock(&RSSQueueMutex);
 507         GetHashPosFromKey(RSSFetchUrls, SKEY(rncptr->Url), At);
 508         GetHashPos(RSSFetchUrls, At, &HKLen, &HK, &vData);
 509         DeleteEntryFromHash(RSSFetchUrls, At);
 510         pthread_mutex_unlock(&RSSQueueMutex);
 511
 512         DeleteHashPos(&At);
 513 */
 514         return eAbort;
 515 }
 516
 517 /*
 518  * Scan a room's netconfig to determine whether it is requesting any RSS feeds
 519  */
 520 void rssclient_scan_room(struct ctdlroom *qrbuf, void *data)
 521 {
 522         StrBuf *CfgData;
 523         StrBuf *CfgType;
 524         StrBuf *Line;
 525         rss_room_counter *Count = NULL;
 526         struct stat statbuf;
 527         char filename[PATH_MAX];
 528         int  fd;
 529         int Done;
 530         rss_aggregator *rncptr = NULL;
 531         rss_aggregator *use_this_rncptr = NULL;
 532         void *vptr;
 533         const char *CfgPtr, *lPtr;
 534         const char *Err;
 535
 536         pthread_mutex_lock(&RSSQueueMutex);
 537         if (GetHash(RSSQueueRooms, LKEY(qrbuf->QRnumber), &vptr))
 538         {
 539                 syslog(LOG_DEBUG,
 540                               "rssclient: [%ld] %s already in progress.\n",
 541                               qrbuf->QRnumber,
 542                               qrbuf->QRname);
 543                 pthread_mutex_unlock(&RSSQueueMutex);
 544                 return;
 545         }
 546         pthread_mutex_unlock(&RSSQueueMutex);
 547
 548         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
 549
 550         if (server_shutting_down)
 551                 return;
 552
 553         /* Only do net processing for rooms that have netconfigs */
 554         fd = open(filename, 0);
 555         if (fd <= 0) {
 556                 //syslog(LOG_DEBUG, "rssclient: %s no config.\n", qrbuf->QRname);
 557                 return;
 558         }
 559
 560         if (server_shutting_down)
 561                 return
 562
 563         CfgData = NewStrBufPlain(NULL, statbuf.st_size + 1);
 564         if (StrBufReadBLOB(CfgData, &fd, 1, statbuf.st_size, &Err) < 0) {
 565                 close(fd);
 566                 FreeStrBuf(&CfgData);
 567                 syslog(LOG_DEBUG, "ERROR: reading config '%s' - %s<br>\n",
 568                         filename, strerror(errno));
 569                 return;
 570         }
 571         close(fd);
 572         if (server_shutting_down)
 573                 return;
 574
 575         CfgPtr = NULL;
 576         CfgType = NewStrBuf();
 577         Line = NewStrBufPlain(NULL, StrLength(CfgData));
 578         Done = 0;
 579         while (!Done)
 580         {
 581             Done = StrBufSipLine(Line, CfgData, &CfgPtr) == 0;
 582             if (StrLength(Line) > 0)
 583             {
 584                 lPtr = NULL;
 585                 StrBufExtract_NextToken(CfgType, Line, &lPtr, '|');
 586                 if (!strcasecmp("rssclient", ChrPtr(CfgType)))
 587                 {
 588                     if (Count == NULL)
 589                     {
 590                         Count = malloc(sizeof(rss_room_counter));
 591                         Count->count = 0;
 592                     }
 593                     Count->count ++;
 594                     rncptr = (rss_aggregator *) malloc(sizeof(rss_aggregator));
 595                     memset (rncptr, 0, sizeof(rss_aggregator));
 596                     rncptr->roomlist_parts = 1;
 597                     rncptr->Url = NewStrBuf();
 598                     StrBufExtract_NextToken(rncptr->Url, Line, &lPtr, '|');
 599
 600                     pthread_mutex_lock(&RSSQueueMutex);
 601                     GetHash(RSSFetchUrls, SKEY(rncptr->Url), &vptr);
 602                     use_this_rncptr = (rss_aggregator *)vptr;
 603                     if (use_this_rncptr != NULL)
 604                     {
 605                             /* mustn't attach to an active session */
 606                             if (use_this_rncptr->RefCount > 0)
 607                             {
 608                                     DeleteRssCfg(rncptr);
 609                                     Count->count--;
 610                             }
 611                             else
 612                             {
 613                                     long *QRnumber;
 614                                     StrBufAppendBufPlain(use_this_rncptr->rooms,
 615                                                          qrbuf->QRname,
 616                                                          -1, 0);
 617                                     if (use_this_rncptr->roomlist_parts == 1)
 618                                     {
 619                                             use_this_rncptr->OtherQRnumbers = NewHash(1, lFlathash);
 620                                     }
 621                                     QRnumber = (long*)malloc(sizeof(long));
 622                                     *QRnumber = qrbuf->QRnumber;
 623                                     Put(use_this_rncptr->OtherQRnumbers, LKEY(qrbuf->QRnumber), QRnumber, NULL);
 624                                     use_this_rncptr->roomlist_parts++;
 625                             }
 626                             pthread_mutex_unlock(&RSSQueueMutex);
 627                             continue;
 628                     }
 629                     pthread_mutex_unlock(&RSSQueueMutex);
 630
 631                     rncptr->ItemType = RSS_UNSET;
 632
 633                     rncptr->rooms = NewStrBufPlain(qrbuf->QRname, -1);
 634
 635                     pthread_mutex_lock(&RSSQueueMutex);
 636                     Put(RSSFetchUrls, SKEY(rncptr->Url), rncptr, DeleteRssCfg);
 637                     pthread_mutex_unlock(&RSSQueueMutex);
 638                 }
 639             }
 640         }
 641         if (Count != NULL)
 642         {
 643                 Count->QRnumber = qrbuf->QRnumber;
 644                 pthread_mutex_lock(&RSSQueueMutex);
 645                 syslog(LOG_DEBUG, "rssclient: [%ld] %s now starting.\n",
 646                               qrbuf->QRnumber, qrbuf->QRname);
 647                 Put(RSSQueueRooms, LKEY(qrbuf->QRnumber), Count, NULL);
 648                 pthread_mutex_unlock(&RSSQueueMutex);
 649         }
 650         FreeStrBuf(&CfgData);
 651         FreeStrBuf(&CfgType);
 652         FreeStrBuf(&Line);
 653 }
 654
 655 /*
 656  * Scan for rooms that have RSS client requests configured
 657  */
 658 void rssclient_scan(void) {
 659         static int doing_rssclient = 0;
 660         rss_aggregator *rptr = NULL;
 661         void *vrptr = NULL;
 662         HashPos  *it;
 663         long len;
 664         const char *Key;
 665
 666         /* Run no more than once every 15 minutes. * /
 667         if ((time(NULL) - last_run) < 900) {
 668                 return;
 669         }
 670 */
 671         /*
 672          * This is a simple concurrency check to make sure only one rssclient run
 673          * is done at a time.  We could do this with a mutex, but since we
 674          * don't really require extremely fine granularity here, we'll do it
 675          * with a static variable instead.
 676          */
 677         if (doing_rssclient) return;
 678         doing_rssclient = 1;
 679
 680         syslog(LOG_DEBUG, "rssclient started\n");
 681         CtdlForEachRoom(rssclient_scan_room, NULL);
 682
 683         pthread_mutex_lock(&RSSQueueMutex);
 684
 685         it = GetNewHashPos(RSSFetchUrls, 0);
 686         while (!server_shutting_down &&
 687                GetNextHashPos(RSSFetchUrls, it, &len, &Key, &vrptr) &&
 688                (vrptr != NULL)) {
 689                 rptr = (rss_aggregator *)vrptr;
 690                 if (rptr->RefCount == 0)
 691                         if (!rss_do_fetching(rptr))
 692                                 UnlinkRSSAggregator(rptr);
 693         }
 694         DeleteHashPos(&it);
 695         pthread_mutex_unlock(&RSSQueueMutex);
 696
 697         syslog(LOG_DEBUG, "rssclient ended\n");
 698         doing_rssclient = 0;
 699         return;
 700 }
 701
 702 void rss_cleanup(void)
 703 {
 704         /* citthread_mutex_destroy(&RSSQueueMutex); TODO */
 705         DeleteHash(&RSSFetchUrls);
 706         DeleteHash(&RSSQueueRooms);
 707 }
 708
 709
 710 CTDL_MODULE_INIT(rssclient)
 711 {
 712         if (threading)
 713         {
 714                 pthread_mutex_init(&RSSQueueMutex, NULL);
 715                 RSSQueueRooms = NewHash(1, lFlathash);
 716                 RSSFetchUrls = NewHash(1, NULL);
 717                 syslog(LOG_INFO, "%s\n", curl_version());
 718                 CtdlRegisterSessionHook(rssclient_scan, EVT_TIMER);
 719                 CtdlRegisterCleanupHook(rss_cleanup);
 720         }
 721         return "rssclient";
 722 }