2 * Bring external RSS feeds into rooms.
4 * Copyright (c) 2007-2015 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
19 #if TIME_WITH_SYS_TIME
20 # include <sys/time.h>
24 # include <sys/time.h>
33 #include <sys/types.h>
36 #include <curl/curl.h>
37 #include <libcitadel.h>
40 #include "citserver.h"
44 #include "ctdl_module.h"
45 #include "clientsocket.h"
47 #include "parsedate.h"
49 #include "citadel_dirs.h"
52 #include "event_client.h"
53 #include "rss_atom_parser.h"
55 void rss_remember_item(rss_item *ri, rss_aggregator *Cfg);
57 int RSSAtomParserDebugEnabled = 0;
59 #define N ((rss_aggregator*)IO->Data)->Cfg.QRnumber
61 #define DBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (RSSAtomParserDebugEnabled != 0))
63 #define EVRSSATOM_syslog(LEVEL, FORMAT, ...) \
64 DBGLOG(LEVEL) syslog(LEVEL, \
65 "%s[%ld]CC[%d][%ld]RSSP" FORMAT, \
66 IOSTR, IO->ID, CCID, N, __VA_ARGS__)
68 #define EVRSSATOMM_syslog(LEVEL, FORMAT) \
69 DBGLOG(LEVEL) syslog(LEVEL, \
70 "%s[%ld]CC[%d][%ld]RSSP" FORMAT, \
71 IOSTR, IO->ID, CCID, N)
73 #define EVRSSATOMCS_syslog(LEVEL, FORMAT, ...) \
74 DBGLOG(LEVEL) syslog(LEVEL, "%s[%ld][%ld]RSSP" FORMAT, \
75 IOSTR, IO->ID, N, __VA_ARGS__)
77 #define EVRSSATOMSM_syslog(LEVEL, FORMAT) \
78 DBGLOG(LEVEL) syslog(LEVEL, "%s[%ld][%ld]RSSP" FORMAT, \
82 * Convert an RDF/RSS datestamp into a time_t
84 time_t rdf_parsedate(const char *p)
90 if (strlen(p) < 10) return 0L;
92 memset(&tm, 0, sizeof tm);
95 * If the timestamp appears to be in W3C datetime format, try to
96 * parse it. See also: http://www.w3.org/TR/NOTE-datetime
98 * This code, along with parsedate.c, is a potential candidate for
99 * moving into libcitadel.
101 if ( (p[4] == '-') && (p[7] == '-') ) {
102 tm.tm_year = atoi(&p[0]) - 1900;
103 tm.tm_mon = atoi(&p[5]) - 1;
104 tm.tm_mday = atoi(&p[8]);
105 if ( (p[10] == 'T') && (p[13] == ':') ) {
106 tm.tm_hour = atoi(&p[11]);
107 tm.tm_min = atoi(&p[14]);
112 /* hmm... try RFC822 date stamp format */
115 if (t > 0) return(t);
117 /* yeesh. ok, just return the current date and time. */
121 void flush_rss_item(rss_item *ri)
123 /* Initialize the feed item data structure */
124 FreeStrBuf(&ri->guid);
125 FreeStrBuf(&ri->title);
126 FreeStrBuf(&ri->link);
127 FreeStrBuf(&ri->author_or_creator);
128 FreeStrBuf(&ri->author_email);
129 FreeStrBuf(&ri->author_url);
130 FreeStrBuf(&ri->description);
132 FreeStrBuf(&ri->linkTitle);
133 FreeStrBuf(&ri->reLink);
134 FreeStrBuf(&ri->reLinkTitle);
135 FreeStrBuf(&ri->channel_title);
139 /******************************************************************************
141 ******************************************************************************/
144 void RSS_item_rss_start (StrBuf *CData,
146 rss_aggregator *RSSAggr,
149 AsyncIO *IO = &RSSAggr->IO;
150 EVRSSATOMM_syslog(LOG_DEBUG, "RSS: This is an RSS feed.\n");
151 RSSAggr->ItemType = RSS_RSS;
154 void RSS_item_rdf_start(StrBuf *CData,
156 rss_aggregator *RSSAggr,
159 AsyncIO *IO = &RSSAggr->IO;
160 EVRSSATOMM_syslog(LOG_DEBUG, "RSS: This is an RDF feed.\n");
161 RSSAggr->ItemType = RSS_RSS;
164 void ATOM_item_feed_start(StrBuf *CData,
166 rss_aggregator *RSSAggr,
169 AsyncIO *IO = &RSSAggr->IO;
170 EVRSSATOMM_syslog(LOG_DEBUG, "RSS: This is an ATOM feed.\n");
171 RSSAggr->ItemType = RSS_ATOM;
175 void RSS_item_item_start(StrBuf *CData,
177 rss_aggregator *RSSAggr,
180 ri->item_tag_nesting ++;
184 void ATOM_item_entry_start(StrBuf *CData,
186 rss_aggregator *RSSAggr,
190 ri->item_tag_nesting ++;
194 void ATOM_item_link_start (StrBuf *CData,
196 rss_aggregator *RSSAggr,
200 const char *pHref = NULL;
201 const char *pType = NULL;
202 const char *pRel = NULL;
203 const char *pTitle = NULL;
205 for (i = 0; Attr[i] != NULL; i+=2)
207 if (!strcmp(Attr[i], "href"))
211 else if (!strcmp(Attr[i], "rel"))
215 else if (!strcmp(Attr[i], "type"))
219 else if (!strcmp(Attr[i], "title"))
225 return; /* WHUT? Pointing... where? */
226 if ((pType != NULL) && !strcasecmp(pType, "application/atom+xml"))
228 /* these just point to other rss resources,
229 we're not interested in them. */
232 if (!strcasecmp (pRel, "replies"))
234 NewStrBufDupAppendFlush(&ri->reLink, NULL, pHref, -1);
235 StrBufTrim(ri->link);
236 NewStrBufDupAppendFlush(&ri->reLinkTitle,
241 else if (!strcasecmp(pRel, "alternate"))
242 { /* Alternative representation of this Item... */
243 NewStrBufDupAppendFlush(&ri->link, NULL, pHref, -1);
244 StrBufTrim(ri->link);
245 NewStrBufDupAppendFlush(&ri->linkTitle,
251 #if 0 /* these are also defined, but dunno what to do with them.. */
252 else if (!strcasecmp(pRel, "related"))
255 else if (!strcasecmp(pRel, "self"))
258 else if (!strcasecmp(pRel, "enclosure"))
259 {/*...reference can get big, and is probably the full article*/
261 else if (!strcasecmp(pRel, "via"))
262 {/* this article was provided via... */
266 else if (StrLength(ri->link) == 0)
268 NewStrBufDupAppendFlush(&ri->link, NULL, pHref, -1);
269 StrBufTrim(ri->link);
270 NewStrBufDupAppendFlush(&ri->linkTitle, NULL, pTitle, -1);
277 void ATOMRSS_item_title_end(StrBuf *CData,
279 rss_aggregator *RSSAggr,
282 if ((ri->item_tag_nesting == 0) && (StrLength(CData) > 0)) {
283 NewStrBufDupAppendFlush(&ri->channel_title, CData, NULL, 0);
284 StrBufTrim(ri->channel_title);
288 void RSS_item_guid_end(StrBuf *CData,
290 rss_aggregator *RSSAggr,
293 if (StrLength(CData) > 0) {
294 NewStrBufDupAppendFlush(&ri->guid, CData, NULL, 0);
298 void ATOM_item_id_end(StrBuf *CData,
299 rss_item *ri, rss_aggregator *RSSAggr, const char** Attr)
301 if (StrLength(CData) > 0) {
302 NewStrBufDupAppendFlush(&ri->guid, CData, NULL, 0);
307 void RSS_item_link_end (StrBuf *CData,
309 rss_aggregator *RSSAggr,
312 if (StrLength(CData) > 0) {
313 NewStrBufDupAppendFlush(&ri->link, CData, NULL, 0);
314 StrBufTrim(ri->link);
317 void RSS_item_relink_end(StrBuf *CData,
319 rss_aggregator *RSSAggr,
322 if (StrLength(CData) > 0) {
323 NewStrBufDupAppendFlush(&ri->reLink, CData, NULL, 0);
324 StrBufTrim(ri->reLink);
328 void RSSATOM_item_title_end (StrBuf *CData,
330 rss_aggregator *RSSAggr,
333 if (StrLength(CData) > 0) {
334 NewStrBufDupAppendFlush(&ri->title, CData, NULL, 0);
335 StrBufTrim(ri->title);
339 void ATOM_item_content_end (StrBuf *CData,
341 rss_aggregator *RSSAggr,
344 long olen = StrLength (ri->description);
345 long clen = StrLength (CData);
349 NewStrBufDupAppendFlush(&ri->description,
353 StrBufTrim(ri->description);
355 else if (olen < clen) {
356 FlushStrBuf(ri->description);
357 NewStrBufDupAppendFlush(&ri->description,
362 StrBufTrim(ri->description);
366 void ATOM_item_summary_end (StrBuf *CData,
368 rss_aggregator *RSSAggr,
372 * this can contain an abstract of the article.
373 * but we don't want to verwrite a full document if we already have it.
375 if ((StrLength(CData) > 0) && (StrLength(ri->description) == 0))
377 NewStrBufDupAppendFlush(&ri->description, CData, NULL, 0);
378 StrBufTrim(ri->description);
382 void RSS_item_description_end (StrBuf *CData,
384 rss_aggregator *RSSAggr,
387 long olen = StrLength (ri->description);
388 long clen = StrLength (CData);
392 NewStrBufDupAppendFlush(&ri->description,
396 StrBufTrim(ri->description);
398 else if (olen < clen) {
399 FlushStrBuf(ri->description);
400 NewStrBufDupAppendFlush(&ri->description,
404 StrBufTrim(ri->description);
409 void ATOM_item_published_end (StrBuf *CData,
411 rss_aggregator *RSSAggr,
414 if (StrLength(CData) > 0) {
416 ri->pubdate = rdf_parsedate(ChrPtr(CData));
420 void ATOM_item_updated_end (StrBuf *CData,
422 rss_aggregator *RSSAggr,
425 if (StrLength(CData) > 0) {
427 ri->pubdate = rdf_parsedate(ChrPtr(CData));
431 void RSS_item_pubdate_end (StrBuf *CData,
433 rss_aggregator *RSSAggr,
436 if (StrLength(CData) > 0) {
438 ri->pubdate = rdf_parsedate(ChrPtr(CData));
443 void RSS_item_date_end (StrBuf *CData,
445 rss_aggregator *RSSAggr,
448 if (StrLength(CData) > 0) {
450 ri->pubdate = rdf_parsedate(ChrPtr(CData));
456 void RSS_item_author_end(StrBuf *CData,
458 rss_aggregator *RSSAggr,
461 if (StrLength(CData) > 0) {
462 NewStrBufDupAppendFlush(&ri->author_or_creator, CData, NULL, 0);
463 StrBufTrim(ri->author_or_creator);
468 void ATOM_item_name_end(StrBuf *CData,
470 rss_aggregator *RSSAggr,
473 if (StrLength(CData) > 0) {
474 NewStrBufDupAppendFlush(&ri->author_or_creator, CData, NULL, 0);
475 StrBufTrim(ri->author_or_creator);
479 void ATOM_item_email_end(StrBuf *CData,
481 rss_aggregator *RSSAggr,
484 if (StrLength(CData) > 0) {
485 NewStrBufDupAppendFlush(&ri->author_email, CData, NULL, 0);
486 StrBufTrim(ri->author_email);
490 void RSS_item_creator_end(StrBuf *CData,
492 rss_aggregator *RSSAggr,
495 if ((StrLength(CData) > 0) &&
496 (StrLength(ri->author_or_creator) == 0))
498 NewStrBufDupAppendFlush(&ri->author_or_creator, CData, NULL, 0);
499 StrBufTrim(ri->author_or_creator);
504 void ATOM_item_uri_end(StrBuf *CData,
506 rss_aggregator *RSSAggr,
509 if (StrLength(CData) > 0) {
510 NewStrBufDupAppendFlush(&ri->author_url, CData, NULL, 0);
511 StrBufTrim(ri->author_url);
515 void RSS_item_item_end(StrBuf *CData,
517 rss_aggregator *RSSAggr,
520 --ri->item_tag_nesting;
521 rss_remember_item(ri, RSSAggr);
525 void ATOM_item_entry_end(StrBuf *CData,
527 rss_aggregator *RSSAggr,
530 --ri->item_tag_nesting;
531 rss_remember_item(ri, RSSAggr);
534 void RSS_item_rss_end(StrBuf *CData,
536 rss_aggregator *RSSAggr,
539 AsyncIO *IO = &RSSAggr->IO;
540 EVRSSATOMM_syslog(LOG_DEBUG, "End of feed detected. Closing parser.\n");
541 ri->done_parsing = 1;
544 void RSS_item_rdf_end(StrBuf *CData,
546 rss_aggregator *RSSAggr,
549 AsyncIO *IO = &RSSAggr->IO;
550 EVRSSATOMM_syslog(LOG_DEBUG, "End of feed detected. Closing parser.\n");
551 ri->done_parsing = 1;
555 void RSSATOM_item_ignore(StrBuf *CData,
557 rss_aggregator *RSSAggr,
565 * This callback stores up the data which appears in between tags.
567 void rss_xml_cdata_start(void *data)
569 rss_aggregator *RSSAggr = (rss_aggregator*) data;
571 FlushStrBuf(RSSAggr->CData);
574 void rss_xml_cdata_end(void *data)
577 void rss_xml_chardata(void *data, const XML_Char *s, int len)
579 rss_aggregator *RSSAggr = (rss_aggregator*) data;
581 StrBufAppendBufPlain (RSSAggr->CData, s, len, 0);
585 /******************************************************************************
587 ******************************************************************************/
589 extern pthread_mutex_t RSSQueueMutex;
591 HashList *StartHandlers = NULL;
592 HashList *EndHandlers = NULL;
593 HashList *KnownNameSpaces = NULL;
595 void FreeNetworkSaveMessage (void *vMsg)
597 networker_save_message *Msg = (networker_save_message *) vMsg;
599 CM_FreeContents(&Msg->Msg);
600 FreeStrBuf(&Msg->Message);
601 FreeStrBuf(&Msg->MsgGUID);
603 FreeStrBuf(&Msg->author_email);
604 FreeStrBuf(&Msg->author_or_creator);
605 FreeStrBuf(&Msg->title);
606 FreeStrBuf(&Msg->description);
608 FreeStrBuf(&Msg->link);
609 FreeStrBuf(&Msg->linkTitle);
611 FreeStrBuf(&Msg->reLink);
612 FreeStrBuf(&Msg->reLinkTitle);
619 * Commit a fetched and parsed RSS item to disk
621 void rss_remember_item(rss_item *ri, rss_aggregator *RSSAggr)
623 networker_save_message *SaveMsg;
624 struct MD5Context md5context;
625 u_char rawdigest[MD5_DIGEST_LEN];
627 AsyncIO *IO = &RSSAggr->IO;
630 SaveMsg = (networker_save_message *) malloc(sizeof(networker_save_message));
631 memset(SaveMsg, 0, sizeof(networker_save_message));
633 /* Construct a GUID to use in the S_USETABLE table.
634 * If one is not present in the item itself, make one up.
636 if (ri->guid != NULL) {
637 StrBufSpaceToBlank(ri->guid);
638 StrBufTrim(ri->guid);
639 guid = NewStrBufPlain(HKEY("rss/"));
640 StrBufAppendBuf(guid, ri->guid, 0);
643 MD5Init(&md5context);
644 if (ri->title != NULL) {
645 MD5Update(&md5context, (const unsigned char*)SKEY(ri->title));
647 if (ri->link != NULL) {
648 MD5Update(&md5context, (const unsigned char*)SKEY(ri->link));
650 MD5Final(rawdigest, &md5context);
651 guid = NewStrBufPlain(NULL, MD5_DIGEST_LEN * 2 + 12 /* _rss2ctdl*/);
652 StrBufHexEscAppend(guid, NULL, rawdigest, MD5_DIGEST_LEN);
653 StrBufAppendBufPlain(guid, HKEY("_rss2ctdl"), 0);
656 /* translate Item into message. */
657 EVRSSATOMM_syslog(LOG_DEBUG, "RSS: translating item...\n");
658 if (ri->description == NULL) ri->description = NewStrBufPlain(HKEY(""));
659 StrBufSpaceToBlank(ri->description);
660 SaveMsg->Msg.cm_magic = CTDLMESSAGE_MAGIC;
661 SaveMsg->Msg.cm_anon_type = MES_NORMAL;
662 SaveMsg->Msg.cm_format_type = FMT_RFC822;
664 /* gather the cheaply computed information now... */
666 if (ri->guid != NULL) {
667 CM_SetField(&SaveMsg->Msg, eExclusiveID, SKEY(ri->guid));
670 SaveMsg->MsgGUID = guid;
672 if (ri->pubdate <= 0) {
673 ri->pubdate = time(NULL);
675 CM_SetFieldLONG(&SaveMsg->Msg, eTimestamp, ri->pubdate);
676 if (ri->channel_title != NULL) {
677 if (StrLength(ri->channel_title) > 0) {
678 CM_SetField(&SaveMsg->Msg, eOriginalRoom, SKEY(ri->channel_title));
682 /* remember the ones for defferred processing to save computing power after we know if we realy need it. */
684 SaveMsg->author_or_creator = ri->author_or_creator;
685 ri->author_or_creator = NULL;
687 SaveMsg->author_email = ri->author_email;
688 ri->author_email = NULL;
690 SaveMsg->title = ri->title;
693 SaveMsg->link = ri->link;
696 SaveMsg->description = ri->description;
697 ri->description = NULL;
699 SaveMsg->linkTitle = ri->linkTitle;
700 ri->linkTitle = NULL;
702 SaveMsg->reLink = ri->reLink;
705 SaveMsg->reLinkTitle = ri->reLinkTitle;
706 ri->reLinkTitle = NULL;
708 n = GetCount(RSSAggr->Messages) + 1;
709 Put(RSSAggr->Messages, IKEY(n), SaveMsg, FreeNetworkSaveMessage);
714 void rss_xml_start(void *data, const char *supplied_el, const char **attr)
717 rss_aggregator *RSSAggr = (rss_aggregator*) data;
718 AsyncIO *IO = &RSSAggr->IO;
719 rss_item *ri = RSSAggr->Item;
724 /* Axe the namespace, we don't care about it */
727 "RSS: supplied el %d: %s\n", RSSAggr->RSSAggr->ItemType, supplied_el);
730 while (sep = strchr(pel, ':'), sep) {
734 if (pel != supplied_el)
738 if (!GetHash(KnownNameSpaces,
740 pel - supplied_el - 1,
743 EVRSSATOM_syslog(LOG_DEBUG,
744 "RSS: START ignoring "
745 "because of wrong namespace [%s]\n",
751 StrBufPlain(RSSAggr->Key, pel, -1);
752 StrBufLowerCase(RSSAggr->Key);
753 if (GetHash(StartHandlers, SKEY(RSSAggr->Key), &pv))
755 h = (rss_xml_handler*) pv;
757 if (((h->Flags & RSS_UNSET) != 0) &&
758 (RSSAggr->ItemType == RSS_UNSET))
760 h->Handler(RSSAggr->CData, ri, RSSAggr, attr);
762 else if (((h->Flags & RSS_RSS) != 0) &&
763 (RSSAggr->ItemType == RSS_RSS))
765 h->Handler(RSSAggr->CData, ri, RSSAggr, attr);
767 else if (((h->Flags & RSS_ATOM) != 0) &&
768 (RSSAggr->ItemType == RSS_ATOM))
770 h->Handler(RSSAggr->CData,
776 EVRSSATOM_syslog(LOG_DEBUG,
777 "RSS: START unhandled: [%s] [%s]...\n",
782 EVRSSATOM_syslog(LOG_DEBUG,
783 "RSS: START unhandled: [%s] [%s]...\n",
788 void rss_xml_end(void *data, const char *supplied_el)
791 rss_aggregator *RSSAggr = (rss_aggregator*) data;
792 AsyncIO *IO = &RSSAggr->IO;
793 rss_item *ri = RSSAggr->Item;
798 /* Axe the namespace, we don't care about it */
800 while (sep = strchr(pel, ':'), sep) {
803 EVRSSATOM_syslog(LOG_DEBUG, "RSS: END %s...\n", supplied_el);
804 if (pel != supplied_el)
808 if (!GetHash(KnownNameSpaces,
810 pel - supplied_el - 1,
813 EVRSSATOM_syslog(LOG_DEBUG,
814 "RSS: END ignoring because of wrong namespace"
817 ChrPtr(RSSAggr->CData));
818 FlushStrBuf(RSSAggr->CData);
823 StrBufPlain(RSSAggr->Key, pel, -1);
824 StrBufLowerCase(RSSAggr->Key);
825 if (GetHash(EndHandlers, SKEY(RSSAggr->Key), &pv))
827 h = (rss_xml_handler*) pv;
829 if (((h->Flags & RSS_UNSET) != 0) &&
830 (RSSAggr->ItemType == RSS_UNSET))
832 h->Handler(RSSAggr->CData, ri, RSSAggr, NULL);
834 else if (((h->Flags & RSS_RSS) != 0) &&
835 (RSSAggr->ItemType == RSS_RSS))
837 h->Handler(RSSAggr->CData, ri, RSSAggr, NULL);
839 else if (((h->Flags & RSS_ATOM) != 0) &&
840 (RSSAggr->ItemType == RSS_ATOM))
842 h->Handler(RSSAggr->CData, ri, RSSAggr, NULL);
845 EVRSSATOM_syslog(LOG_DEBUG,
846 "RSS: END unhandled: [%s] [%s] = [%s]...\n",
849 ChrPtr(RSSAggr->CData));
852 EVRSSATOM_syslog(LOG_DEBUG,
853 "RSS: END unhandled: [%s] [%s] = [%s]...\n",
856 ChrPtr(RSSAggr->CData));
857 FlushStrBuf(RSSAggr->CData);
863 * Callback function for passing libcurl's output to expat for parsing
864 * we don't do streamed parsing so expat can handle non-utf8 documents
865 size_t rss_libcurl_callback(void *ptr, size_t size, size_t nmemb, void *stream)
867 XML_Parse((XML_Parser)stream, ptr, (size * nmemb), 0);
874 eNextState RSSAggregator_ParseReply(AsyncIO *IO)
877 rss_aggregator *RSSAggr;
886 RSSAggr->CData = NewStrBufPlain(NULL, SIZ);
887 RSSAggr->Key = NewStrBuf();
889 StrBufSipLine(RSSAggr->Key, IO->HttpReq.ReplyData, &at);
892 #define encoding "encoding=\""
893 ptr = strstr(ChrPtr(RSSAggr->Key), encoding);
898 ptr += sizeof (encoding) - 1;
899 pche = strchr(ptr, '"');
901 StrBufCutAt(RSSAggr->Key, -1, pche);
908 EVRSSATOM_syslog(LOG_DEBUG, "RSS: Now parsing [%s] \n", ChrPtr(RSSAggr->Url));
910 RSSAggr->xp = XML_ParserCreateNS(ptr, ':');
912 EVRSSATOMM_syslog(LOG_ALERT, "Cannot create XML parser!\n");
915 FlushStrBuf(RSSAggr->Key);
917 RSSAggr->Messages = NewHash(1, Flathash);
918 XML_SetElementHandler(RSSAggr->xp, rss_xml_start, rss_xml_end);
919 XML_SetCharacterDataHandler(RSSAggr->xp, rss_xml_chardata);
920 XML_SetUserData(RSSAggr->xp, RSSAggr);
921 XML_SetCdataSectionHandler(RSSAggr->xp,
926 len = StrLength(IO->HttpReq.ReplyData);
927 ptr = SmashStrBuf(&IO->HttpReq.ReplyData);
928 XML_Parse(RSSAggr->xp, ptr, len, 0);
930 if (ri->done_parsing == 0)
931 XML_Parse(RSSAggr->xp, "", 0, 1);
934 EVRSSATOM_syslog(LOG_DEBUG, "RSS: XML Status [%s] \n",
935 XML_ErrorString(XML_GetErrorCode(RSSAggr->xp)));
937 XML_ParserFree(RSSAggr->xp);
940 Buf = NewStrBufDup(RSSAggr->rooms);
941 RSSAggr->recp.recp_room = SmashStrBuf(&Buf);
942 RSSAggr->recp.num_room = RSSAggr->roomlist_parts;
943 RSSAggr->recp.recptypes_magic = RECPTYPES_MAGIC;
945 RSSAggr->Pos = GetNewHashPos(RSSAggr->Messages, 1);
947 if (GetNextHashPos(RSSAggr->Messages,
951 (void**) &RSSAggr->ThisMsg)) {
952 return NextDBOperation(IO, RSS_FetchNetworkUsetableEntry);
960 /******************************************************************************
961 * RSS handler registering logic *
962 ******************************************************************************/
964 void AddRSSStartHandler(rss_handler_func Handler,
970 h = (rss_xml_handler*) malloc(sizeof (rss_xml_handler));
972 h->Handler = Handler;
973 Put(StartHandlers, key, len, h, NULL);
976 void AddRSSEndHandler(rss_handler_func Handler,
982 h = (rss_xml_handler*) malloc(sizeof (rss_xml_handler));
984 h->Handler = Handler;
985 Put(EndHandlers, key, len, h, NULL);
988 void rss_parser_cleanup(void)
990 DeleteHash(&StartHandlers);
991 DeleteHash(&EndHandlers);
992 DeleteHash(&KnownNameSpaces);
995 void LogDebugEnableRSSATOMParser(const int n)
997 RSSAtomParserDebugEnabled = n;
1000 CTDL_MODULE_INIT(rssparser)
1004 StartHandlers = NewHash(1, NULL);
1005 EndHandlers = NewHash(1, NULL);
1007 AddRSSStartHandler(RSS_item_rss_start, RSS_UNSET, HKEY("rss"));
1008 AddRSSStartHandler(RSS_item_rdf_start, RSS_UNSET, HKEY("rdf"));
1009 AddRSSStartHandler(ATOM_item_feed_start, RSS_UNSET, HKEY("feed"));
1010 AddRSSStartHandler(RSS_item_item_start, RSS_RSS, HKEY("item"));
1011 AddRSSStartHandler(ATOM_item_entry_start, RSS_ATOM, HKEY("entry"));
1012 AddRSSStartHandler(ATOM_item_link_start, RSS_ATOM, HKEY("link"));
1014 AddRSSEndHandler(ATOMRSS_item_title_end, RSS_ATOM|RSS_RSS|RSS_REQUIRE_BUF, HKEY("title"));
1015 AddRSSEndHandler(RSS_item_guid_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("guid"));
1016 AddRSSEndHandler(ATOM_item_id_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("id"));
1017 AddRSSEndHandler(RSS_item_link_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("link"));
1019 // hm, rss to the comments of that blog, might be interesting in future, but...
1020 AddRSSEndHandler(RSS_item_relink_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("commentrss"));
1022 AddRSSEndHandler(RSS_item_relink_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("comments"));
1024 AddRSSEndHandler(RSSATOM_item_title_end, RSS_ATOM|RSS_RSS|RSS_REQUIRE_BUF, HKEY("title"));
1025 AddRSSEndHandler(ATOM_item_content_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("content"));
1026 AddRSSEndHandler(RSS_item_description_end, RSS_RSS|RSS_ATOM|RSS_REQUIRE_BUF, HKEY("encoded"));
1027 AddRSSEndHandler(ATOM_item_summary_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("summary"));
1028 AddRSSEndHandler(RSS_item_description_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("description"));
1029 AddRSSEndHandler(ATOM_item_published_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("published"));
1030 AddRSSEndHandler(ATOM_item_updated_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("updated"));
1031 AddRSSEndHandler(RSS_item_pubdate_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("pubdate"));
1032 AddRSSEndHandler(RSS_item_date_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("date"));
1033 AddRSSEndHandler(RSS_item_author_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("author"));
1034 AddRSSEndHandler(RSS_item_creator_end, RSS_RSS|RSS_REQUIRE_BUF, HKEY("creator"));
1036 AddRSSEndHandler(ATOM_item_email_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("email"));
1037 AddRSSEndHandler(ATOM_item_name_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("name"));
1038 AddRSSEndHandler(ATOM_item_uri_end, RSS_ATOM|RSS_REQUIRE_BUF, HKEY("uri"));
1040 AddRSSEndHandler(RSS_item_item_end, RSS_RSS, HKEY("item"));
1041 AddRSSEndHandler(RSS_item_rss_end, RSS_RSS, HKEY("rss"));
1042 AddRSSEndHandler(RSS_item_rdf_end, RSS_RSS, HKEY("rdf"));
1043 AddRSSEndHandler(ATOM_item_entry_end, RSS_ATOM, HKEY("entry"));
1046 /* at the start of atoms: <seq> <li>link to resource</li></seq> ignore them. */
1047 AddRSSStartHandler(RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("seq"));
1048 AddRSSEndHandler (RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("seq"));
1049 AddRSSStartHandler(RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("li"));
1050 AddRSSEndHandler (RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("li"));
1052 /* links to other feed generators... */
1053 AddRSSStartHandler(RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("feedflare"));
1054 AddRSSEndHandler (RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("feedflare"));
1055 AddRSSStartHandler(RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("browserfriendly"));
1056 AddRSSEndHandler (RSSATOM_item_ignore, RSS_RSS|RSS_ATOM, HKEY("browserfriendly"));
1058 KnownNameSpaces = NewHash(1, NULL);
1059 Put(KnownNameSpaces, HKEY("http://a9.com/-/spec/opensearch/1.1/"), NULL, reference_free_handler);
1060 Put(KnownNameSpaces, HKEY("http://a9.com/-/spec/opensearchrss/1.0/"), NULL, reference_free_handler);
1061 Put(KnownNameSpaces, HKEY("http://backend.userland.com/creativeCommonsRssModule"), NULL, reference_free_handler);
1062 Put(KnownNameSpaces, HKEY("http://purl.org/atom/ns#"), NULL, reference_free_handler);
1063 Put(KnownNameSpaces, HKEY("http://purl.org/dc/elements/1.1/"), NULL, reference_free_handler);
1064 Put(KnownNameSpaces, HKEY("http://purl.org/rss/1.0/"), NULL, reference_free_handler);
1065 Put(KnownNameSpaces, HKEY("http://purl.org/rss/1.0/modules/content/"), NULL, reference_free_handler);
1066 Put(KnownNameSpaces, HKEY("http://purl.org/rss/1.0/modules/slash/"), NULL, reference_free_handler);
1067 Put(KnownNameSpaces, HKEY("http://purl.org/rss/1.0/modules/syndication/"), NULL, reference_free_handler);
1068 Put(KnownNameSpaces, HKEY("http://purl.org/rss/1.0/"), NULL, reference_free_handler);
1069 Put(KnownNameSpaces, HKEY("http://purl.org/syndication/thread/1.0"), NULL, reference_free_handler);
1070 Put(KnownNameSpaces, HKEY("http://rssnamespace.org/feedburner/ext/1.0"), NULL, reference_free_handler);
1071 Put(KnownNameSpaces, HKEY("http://schemas.google.com/g/2005"), NULL, reference_free_handler);
1072 Put(KnownNameSpaces, HKEY("http://webns.net/mvcb/"), NULL, reference_free_handler);
1073 Put(KnownNameSpaces, HKEY("http://web.resource.org/cc/"), NULL, reference_free_handler);
1074 Put(KnownNameSpaces, HKEY("http://wellformedweb.org/CommentAPI/"), NULL, reference_free_handler);
1075 Put(KnownNameSpaces, HKEY("http://www.georss.org/georss"), NULL, reference_free_handler);
1076 Put(KnownNameSpaces, HKEY("http://www.w3.org/1999/xhtml"), NULL, reference_free_handler);
1077 Put(KnownNameSpaces, HKEY("http://www.w3.org/1999/02/22-rdf-syntax-ns#"), NULL, reference_free_handler);
1078 Put(KnownNameSpaces, HKEY("http://www.w3.org/1999/02/22-rdf-syntax-ns#"), NULL, reference_free_handler);
1079 Put(KnownNameSpaces, HKEY("http://www.w3.org/2003/01/geo/wgs84_pos#"), NULL, reference_free_handler);
1080 Put(KnownNameSpaces, HKEY("http://www.w3.org/2005/Atom"), NULL, reference_free_handler);
1081 Put(KnownNameSpaces, HKEY("urn:flickr:"), NULL, reference_free_handler);
1083 /* we don't like these namespaces because of they shadow our usefull parameters. */
1084 Put(KnownNameSpaces, HKEY("http://search.yahoo.com/mrss/"), NULL, reference_free_handler);
1086 CtdlRegisterDebugFlagHook(HKEY("RSSAtomParser"), LogDebugEnableRSSATOMParser, &RSSAtomParserDebugEnabled);
1087 CtdlRegisterCleanupHook(rss_parser_cleanup);