/*
* Bring external RSS feeds into rooms.
*
- * Copyright (c) 2007-2010 by the citadel.org team
+ * Copyright (c) 2007-2017 by the citadel.org team
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
-# include <sys/time.h>
+#include <sys/time.h>
# else
-# include <time.h>
+#include <time.h>
# endif
#endif
#include "citadel_dirs.h"
#include "md5.h"
#include "context.h"
-#include "event_client.h"
-#include "rss_atom_parser.h"
-
+#include "internet_addressing.h"
-#define TMP_MSGDATA 0xFF
-#define TMP_SHORTER_URL_OFFSET 0xFE
-#define TMP_SHORTER_URLS 0xFD
+struct rssroom {
+ struct rssroom *next;
+ char *room;
+};
-time_t last_run = 0L;
+struct rssurl {
+ struct rssurl *next;
+ char *url;
+ struct rssroom *rooms;
+};
-pthread_mutex_t RSSQueueMutex; /* locks the access to the following vars: */
-HashList *RSSQueueRooms = NULL; /* rss_room_counter */
-HashList *RSSFetchUrls = NULL; /* -> rss_aggregator; ->RefCount access to be locked too. */
+struct rssparser {
+ StrBuf *CData;
+ struct CtdlMessage *msg;
+ char *link;
+ char *description;
+ char *item_id;
+ struct rssroom *rooms;
+};
-eNextState RSSAggregatorTerminate(AsyncIO *IO);
-eNextState RSSAggregatorShutdownAbort(AsyncIO *IO);
+time_t last_run = 0L;
struct CitContext rss_CC;
+struct rssurl *rsstodo = NULL;
-struct rssnetcfg *rnclist = NULL;
-void AppendLink(StrBuf *Message, StrBuf *link, StrBuf *LinkTitle, const char *Title)
-{
- if (StrLength(link) > 0)
- {
- StrBufAppendBufPlain(Message, HKEY("<a href=\""), 0);
- StrBufAppendBuf(Message, link, 0);
- StrBufAppendBufPlain(Message, HKEY("\">"), 0);
- if (StrLength(LinkTitle) > 0)
- StrBufAppendBuf(Message, LinkTitle, 0);
- else if ((Title != NULL) && !IsEmptyStr(Title))
- StrBufAppendBufPlain(Message, Title, -1, 0);
- else
- StrBufAppendBuf(Message, link, 0);
- StrBufAppendBufPlain(Message, HKEY("</a><br>\n"), 0);
- }
-}
-
-void DeleteRoomReference(long QRnumber)
+// This handler is called whenever an XML tag opens.
+//
+void rss_start_element(void *data, const char *el, const char **attribute)
{
- HashPos *At;
- long HKLen;
- const char *HK;
- void *vData = NULL;
- rss_room_counter *pRoomC;
-
- At = GetNewHashPos(RSSQueueRooms, 0);
-
- GetHashPosFromKey(RSSQueueRooms, LKEY(QRnumber), At);
- GetHashPos(RSSQueueRooms, At, &HKLen, &HK, &vData);
- if (vData != NULL)
- {
- pRoomC = (rss_room_counter *) vData;
- pRoomC->count --;
- if (pRoomC->count == 0)
- DeleteEntryFromHash(RSSQueueRooms, At);
- }
- DeleteHashPos(&At);
-}
-
-void UnlinkRooms(rss_aggregator *Cfg)
-{
-
- DeleteRoomReference(Cfg->QRnumber);
- if (Cfg->OtherQRnumbers != NULL)
- {
- long HKLen;
- const char *HK;
- HashPos *At;
- void *vData;
-
- At = GetNewHashPos(Cfg->OtherQRnumbers, 0);
- while (GetNextHashPos(Cfg->OtherQRnumbers, At, &HKLen, &HK, &vData) &&
- (vData != NULL))
- {
- long *lData = (long*) vData;
- DeleteRoomReference(*lData);
+ struct rssparser *r = (struct rssparser *)data;
+ int i;
+
+ if (
+ (!strcasecmp(el, "entry"))
+ || (!strcasecmp(el, "item"))
+ ) {
+ // this is the start of a new item(rss) or entry(atom)
+ if (r->msg != NULL) {
+ CM_Free(r->msg);
+ r->msg = NULL;
}
-/*
- if (server_shutting_down)
- break; / * TODO */
-
- DeleteHashPos(&At);
+ r->msg = malloc(sizeof(struct CtdlMessage));
+ memset(r->msg, 0, sizeof(struct CtdlMessage));
+ r->msg->cm_magic = CTDLMESSAGE_MAGIC;
+ r->msg->cm_anon_type = MES_NORMAL;
+ r->msg->cm_format_type = FMT_RFC822;
}
-}
-
-void UnlinkRSSAggregator(rss_aggregator *Cfg)
-{
- HashPos *At;
-
- UnlinkRooms(Cfg);
-
- At = GetNewHashPos(RSSFetchUrls, 0);
- if (GetHashPosFromKey(RSSFetchUrls, SKEY(Cfg->Url), At) == 0)
- {
- DeleteEntryFromHash(RSSFetchUrls, At);
- }
- DeleteHashPos(&At);
- last_run = time(NULL);
-}
-/*
-eNextState FreeNetworkSaveMessage (AsyncIO *IO)
-{
- networker_save_message *Ctx = (networker_save_message *) IO->Data;
-
- pthread_mutex_lock(&RSSQueueMutex);
- Ctx->Cfg->RefCount --;
-
- if (Ctx->Cfg->RefCount == 0)
- {
- UnlinkRSSAggregator(Ctx->Cfg);
+ else if (!strcasecmp(el, "link")) { // atom feeds have the link as an attribute
+ for(i = 0; attribute[i]; i += 2) {
+ if (!strcasecmp(attribute[i], "href")) {
+ if (r->link != NULL) {
+ free(r->link);
+ r->link = NULL;
+ }
+ r->link = strdup(attribute[i+1]);
+ striplt(r->link);
+ }
+ }
}
- pthread_mutex_unlock(&RSSQueueMutex);
-
- CtdlFreeMessage(Ctx->Msg);
- free_recipients(Ctx->recp);
- FreeStrBuf(&Ctx->Message);
- FreeStrBuf(&Ctx->MsgGUID);
- ((struct CitContext*)IO->CitContext)->state = CON_IDLE;
- ((struct CitContext*)IO->CitContext)->kill_me = 1;
- free(Ctx);
- last_run = time(NULL);
- return eAbort;
}
-*/
-void FreeNetworkSaveMessage (void *vMsg)
-{
- networker_save_message *Msg = (networker_save_message *) vMsg;
- CtdlFreeMessage(Msg->Msg);
- FreeStrBuf(&Msg->Message);
- FreeStrBuf(&Msg->MsgGUID);
- free(Msg);
-}
-eNextState AbortNetworkSaveMessage (AsyncIO *IO)
+// This handler is called whenever an XML tag closes.
+//
+void rss_end_element(void *data, const char *el)
{
- return eAbort; ///TODO
-}
+ struct rssparser *r = (struct rssparser *)data;
-eNextState RSSSaveMessage(AsyncIO *IO)
-{
- long len;
- const char *Key;
- rss_aggregator *Ctx = (rss_aggregator *) IO->Data;
+ if ( // end of a new item(rss) or entry(atom)
+ (!strcasecmp(el, "entry"))
+ || (!strcasecmp(el, "item"))
+ ) {
- Ctx->ThisMsg->Msg->cm_fields['M'] = SmashStrBuf(&Ctx->ThisMsg->Message);
+ if (r->msg != NULL) { // Save the message to the rooms
- CtdlSubmitMsg(Ctx->ThisMsg->Msg, &Ctx->recp, NULL, 0);
+ // use the link as an item id if nothing else is available
+ if ((r->item_id == NULL) && (r->link != NULL)) {
+ r->item_id = strdup(r->link);
+ }
- /* write the uidl to the use table so we don't store this item again */
- cdb_store(CDB_USETABLE, SKEY(Ctx->ThisMsg->MsgGUID), &Ctx->ThisMsg->ut, sizeof(struct UseTable) );
+ // check the use table
+ StrBuf *u = NewStrBuf();
+ StrBufAppendPrintf(u, "rss/%s", r->item_id);
+ int already_seen = CheckIfAlreadySeen(u);
+ FreeStrBuf(&u);
+
+ if (already_seen == 0) {
+
+ // Compose the message text
+ StrBuf *TheMessage = NewStrBuf();
+ StrBufAppendPrintf(TheMessage,
+ "Content-type: text/html\n\n"
+ "\n\n"
+ "<html><head></head><body>"
+ );
+
+ if (r->description != NULL) {
+ StrBufAppendPrintf(TheMessage, "%s<br><br>\r\n", r->description);
+ free(r->description);
+ r->description = NULL;
+ }
+
+ if (r->link != NULL) {
+ StrBufAppendPrintf(TheMessage, "<a href=\"%s\">%s</a>\r\n", r->link, r->link);
+ free(r->link);
+ r->link = NULL;
+ }
- if (GetNextHashPos(Ctx->Messages, Ctx->Pos, &len, &Key, (void**) &Ctx->ThisMsg))
- return NextDBOperation(IO, RSS_FetchNetworkUsetableEntry);
- else
- return eAbort;
-}
-
-eNextState RSS_FetchNetworkUsetableEntry(AsyncIO *IO)
-{
- const char *Key;
- long len;
- struct cdbdata *cdbut;
- rss_aggregator *Ctx = (rss_aggregator *) IO->Data;
-
-
- /* Find out if we've already seen this item */
- strcpy(Ctx->ThisMsg->ut.ut_msgid, ChrPtr(Ctx->ThisMsg->MsgGUID)); /// TODO
- Ctx->ThisMsg->ut.ut_timestamp = time(NULL);
-
- cdbut = cdb_fetch(CDB_USETABLE, SKEY(Ctx->ThisMsg->MsgGUID));
-#ifndef DEBUG_RSS
- if (cdbut != NULL) {
- /* Item has already been seen */
- EV_syslog(LOG_DEBUG, "%s has already been seen\n", ChrPtr(Ctx->ThisMsg->MsgGUID));
- cdb_free(cdbut);
-
- /* rewrite the record anyway, to update the timestamp */
- cdb_store(CDB_USETABLE,
- SKEY(Ctx->ThisMsg->MsgGUID),
- &Ctx->ThisMsg->ut, sizeof(struct UseTable) );
-
- if (GetNextHashPos(Ctx->Messages, Ctx->Pos, &len, &Key, (void**) &Ctx->ThisMsg))
- return NextDBOperation(IO, RSS_FetchNetworkUsetableEntry);
- else
- return eAbort;
- }
- else
-#endif
- {
- NextDBOperation(IO, RSSSaveMessage);
- return eSendMore;
- }
-}
-/*
-void RSSAddSaveMessage(struct CtdlMessage *Msg, struct recptypes *recp, StrBuf *MsgGUID, StrBuf *MessageBody, rss_aggregat *Cfg)
-{
- networker_save_message *Ctx;
-
- pthread_mutex_lock(&RSSQueueMutex);
- Cfg->RefCount ++;
- pthread_mutex_unlock(&RSSQueueMutex);
-
-
- Ctx = (networker_save_message *) malloc(sizeof(networker_save_message));
- memset(Ctx, 0, sizeof(networker_save_message));
+ StrBufAppendPrintf(TheMessage, "</body></html>\r\n");
+ CM_SetField(r->msg, eMesageText, ChrPtr(TheMessage), StrLength(TheMessage));
+ FreeStrBuf(&TheMessage);
- Ctx->MsgGUID = MsgGUID;
- Ctx->Message = MessageBody;
- Ctx->Msg = Msg;
- Ctx->Cfg = Cfg;
- Ctx->recp = recp;
- Ctx->IO.Data = Ctx;
- Ctx->IO.CitContext = CloneContext(&rss_CC);
- Ctx->IO.Terminate = FreeNetworkSaveMessage;
- Ctx->IO.ShutdownAbort = AbortNetworkSaveMessage;
- QueueDBOperation(&Ctx->IO, RSS_FetchNetworkUsetableEntry);
-}
-*/
-
-/*
- * Commit a fetched and parsed RSS item to disk
- */
-void rss_save_item(rss_item *ri, rss_aggregator *Cfg)
-{
-
- struct MD5Context md5context;
- u_char rawdigest[MD5_DIGEST_LEN];
- struct CtdlMessage *msg;
- int msglen = 0;
- StrBuf *Message;
- StrBuf *guid;
- AsyncIO *IO = &Cfg->IO;
-
- int n;
-
- /* Construct a GUID to use in the S_USETABLE table.
- * If one is not present in the item itself, make one up.
- */
- if (ri->guid != NULL) {
- StrBufSpaceToBlank(ri->guid);
- StrBufTrim(ri->guid);
- guid = NewStrBufPlain(HKEY("rss/"));
- StrBufAppendBuf(guid, ri->guid, 0);
- }
- else {
- MD5Init(&md5context);
- if (ri->title != NULL) {
- MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->title), StrLength(ri->title));
+ if (CM_IsEmpty(r->msg, eAuthor)) {
+ CM_SetField(r->msg, eAuthor, HKEY("rss"));
+ }
+
+ if (CM_IsEmpty(r->msg, eTimestamp)) {
+ CM_SetFieldLONG(r->msg, eTimestamp, time(NULL));
+ }
+
+ // Save it to the room(s)
+ struct rssroom *rr = NULL;
+ long msgnum = (-1);
+ for (rr=r->rooms; rr!=NULL; rr=rr->next) {
+ if (rr == r->rooms) {
+ msgnum = CtdlSubmitMsg(r->msg, NULL, rr->room, 0);
+ }
+ else {
+ CtdlSaveMsgPointerInRoom(rr->room, msgnum, 0, NULL);
+ }
+ syslog(LOG_DEBUG, "Saved message %ld to %s", msgnum, rr->room);
+ }
+ }
+ else {
+ syslog(LOG_DEBUG, "%s was already seen", r->item_id);
+ }
+
+ CM_Free(r->msg);
+ r->msg = NULL;
}
- if (ri->link != NULL) {
- MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->link), StrLength(ri->link));
+
+ if (r->item_id != NULL) {
+ free(r->item_id);
+ r->item_id = NULL;
}
- MD5Final(rawdigest, &md5context);
- guid = NewStrBufPlain(NULL, MD5_DIGEST_LEN * 2 + 12 /* _rss2ctdl*/);
- StrBufHexEscAppend(guid, NULL, rawdigest, MD5_DIGEST_LEN);
- StrBufAppendBufPlain(guid, HKEY("_rss2ctdl"), 0);
}
- /* translate Item into message. */
- EVM_syslog(LOG_DEBUG, "RSS: translating item...\n");
- if (ri->description == NULL) ri->description = NewStrBufPlain(HKEY(""));
- StrBufSpaceToBlank(ri->description);
- msg = malloc(sizeof(struct CtdlMessage));
- memset(msg, 0, sizeof(struct CtdlMessage));
- msg->cm_magic = CTDLMESSAGE_MAGIC;
- msg->cm_anon_type = MES_NORMAL;
- msg->cm_format_type = FMT_RFC822;
-
- if (ri->guid != NULL) {
- msg->cm_fields['E'] = strdup(ChrPtr(ri->guid));
+ else if (!strcasecmp(el, "title")) { // item subject (rss and atom)
+ if ((r->msg != NULL) && (CM_IsEmpty(r->msg, eMsgSubject))) {
+ CM_SetField(r->msg, eMsgSubject, ChrPtr(r->CData), StrLength(r->CData));
+ striplt(r->msg->cm_fields[eMsgSubject]);
+ }
}
- if (ri->author_or_creator != NULL) {
- char *From;
- StrBuf *Encoded = NULL;
- int FromAt;
-
- From = html_to_ascii(ChrPtr(ri->author_or_creator),
- StrLength(ri->author_or_creator),
- 512, 0);
- StrBufPlain(ri->author_or_creator, From, -1);
- StrBufTrim(ri->author_or_creator);
- free(From);
-
- FromAt = strchr(ChrPtr(ri->author_or_creator), '@') != NULL;
- if (!FromAt && StrLength (ri->author_email) > 0)
- {
- StrBufRFC2047encode(&Encoded, ri->author_or_creator);
- msg->cm_fields['A'] = SmashStrBuf(&Encoded);
- msg->cm_fields['P'] = SmashStrBuf(&ri->author_email);
+ else if (!strcasecmp(el, "author")) { // author of item (rss and maybe atom)
+ if ((r->msg != NULL) && (CM_IsEmpty(r->msg, eAuthor))) {
+ CM_SetField(r->msg, eAuthor, ChrPtr(r->CData), StrLength(r->CData));
+ striplt(r->msg->cm_fields[eAuthor]);
}
- else
- {
- if (FromAt)
- {
- msg->cm_fields['A'] = SmashStrBuf(&ri->author_or_creator);
- msg->cm_fields['P'] = strdup(msg->cm_fields['A']);
- }
- else
- {
- StrBufRFC2047encode(&Encoded, ri->author_or_creator);
- msg->cm_fields['A'] = SmashStrBuf(&Encoded);
- msg->cm_fields['P'] = strdup("rss@localhost");
+ }
- }
- if (ri->pubdate <= 0) {
- ri->pubdate = time(NULL);
- }
+ else if (!strcasecmp(el, "pubdate")) { // date/time stamp (rss) Sat, 25 Feb 2017 14:28:01 EST
+ if ((r->msg)&&(r->msg->cm_fields[eTimestamp]==NULL)) {
+ CM_SetFieldLONG(r->msg, eTimestamp, parsedate(ChrPtr(r->CData)));
}
}
- else {
- msg->cm_fields['A'] = strdup("rss");
- }
- msg->cm_fields['N'] = strdup(NODENAME);
- if (ri->title != NULL) {
- long len;
- char *Sbj;
- StrBuf *Encoded, *QPEncoded;
-
- QPEncoded = NULL;
- StrBufSpaceToBlank(ri->title);
- len = StrLength(ri->title);
- Sbj = html_to_ascii(ChrPtr(ri->title), len, 512, 0);
- len = strlen(Sbj);
- if (Sbj[len - 1] == '\n')
- {
- len --;
- Sbj[len] = '\0';
+ else if (!strcasecmp(el, "updated")) { // date/time stamp (atom) 2003-12-13T18:30:02Z
+ if ((r->msg)&&(r->msg->cm_fields[eTimestamp]==NULL)) {
+ struct tm t;
+ char zulu;
+ memset(&t, 0, sizeof t);
+ sscanf(ChrPtr(r->CData), "%d-%d-%dT%d:%d:%d%c", &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec, &zulu);
+ t.tm_year -= 1900;
+ t.tm_mon -= 1;
+ CM_SetFieldLONG(r->msg, eTimestamp, mktime(&t));
}
- Encoded = NewStrBufPlain(Sbj, len);
- free(Sbj);
-
- StrBufTrim(Encoded);
- StrBufRFC2047encode(&QPEncoded, Encoded);
-
- msg->cm_fields['U'] = SmashStrBuf(&QPEncoded);
- FreeStrBuf(&Encoded);
}
- msg->cm_fields['T'] = malloc(64);
- snprintf(msg->cm_fields['T'], 64, "%ld", ri->pubdate);
- if (ri->channel_title != NULL) {
- if (StrLength(ri->channel_title) > 0) {
- msg->cm_fields['O'] = strdup(ChrPtr(ri->channel_title));
+
+ else if (!strcasecmp(el, "link")) { // link to story (rss)
+ if (r->link != NULL) {
+ free(r->link);
+ r->link = NULL;
}
+ r->link = strdup(ChrPtr(r->CData));
+ striplt(r->link);
}
- if (ri->link == NULL)
- ri->link = NewStrBufPlain(HKEY(""));
-
-#if 0 /* temporarily disable shorter urls. */
- msg->cm_fields[TMP_SHORTER_URLS] = GetShorterUrls(ri->description);
-#endif
- msglen += 1024 + StrLength(ri->link) + StrLength(ri->description) ;
-
- Message = NewStrBufPlain(NULL, StrLength(ri->description));
-
- StrBufPlain(Message, HKEY(
- "Content-type: text/html; charset=\"UTF-8\"\r\n\r\n"
- "<html><body>\n"));
-#if 0 /* disable shorter url for now. */
- msg->cm_fields[TMP_SHORTER_URL_OFFSET] = StrLength(Message);
-#endif
- StrBufAppendBuf(Message, ri->description, 0);
- StrBufAppendBufPlain(Message, HKEY("<br><br>\n"), 0);
-
- AppendLink(Message, ri->link, ri->linkTitle, NULL);
- AppendLink(Message, ri->reLink, ri->reLinkTitle, "Reply to this");
- StrBufAppendBufPlain(Message, HKEY("</body></html>\n"), 0);
-
-
-
- networker_save_message *SaveMsg;
+ else if (
+ (!strcasecmp(el, "guid")) // unique item id (rss)
+ || (!strcasecmp(el, "id")) // unique item id (atom)
+ ) {
+ if (r->item_id != NULL) {
+ free(r->item_id);
+ r->item_id = NULL;
+ }
+ r->item_id = strdup(ChrPtr(r->CData));
+ striplt(r->item_id);
+ }
- SaveMsg = (networker_save_message *) malloc(sizeof(networker_save_message));
- memset(SaveMsg, 0, sizeof(networker_save_message));
-
- SaveMsg->MsgGUID = guid;
- SaveMsg->Message = Message;
- SaveMsg->Msg = msg;
+ else if (
+ (!strcasecmp(el, "description")) // message text (rss)
+ || (!strcasecmp(el, "summary")) // message text (atom)
+ || (!strcasecmp(el, "content")) // message text (atom)
+ ) {
+ if (r->description != NULL) {
+ free(r->description);
+ r->description = NULL;
+ }
+ r->description = strdup(ChrPtr(r->CData));
+ striplt(r->description);
+ }
- n = GetCount(Cfg->Messages) + 1;
- Put(Cfg->Messages, IKEY(n), SaveMsg, FreeNetworkSaveMessage);
+ if (r->CData != NULL) {
+ FreeStrBuf(&r->CData);
+ r->CData = NULL;
+ }
}
-
-/*
- * Begin a feed parse
- */
-int rss_do_fetching(rss_aggregator *Cfg)
+// This handler is called whenever data appears between opening and closing tags.
+//
+void rss_handle_data(void *data, const char *content, int length)
{
- rss_item *ri;
-
- time_t now;
- AsyncIO *IO;
-
- now = time(NULL);
+ struct rssparser *r = (struct rssparser *)data;
- if ((Cfg->next_poll != 0) && (now < Cfg->next_poll))
- return 0;
-
- ri = (rss_item*) malloc(sizeof(rss_item));
- memset(ri, 0, sizeof(rss_item));
- Cfg->Item = ri;
- IO = &Cfg->IO;
- IO->CitContext = CloneContext(&rss_CC);
- IO->Data = Cfg;
-
-
- syslog(LOG_DEBUG, "Fetching RSS feed <%s>\n", ChrPtr(Cfg->Url));
- ParseURL(&IO->ConnectMe, Cfg->Url, 80);
- CurlPrepareURL(IO->ConnectMe);
-
- if (! evcurl_init(IO,
-// Ctx,
- NULL,
- "Citadel RSS Client",
- ParseRSSReply,
- RSSAggregatorTerminate,
- RSSAggregatorShutdownAbort))
- {
- syslog(LOG_DEBUG, "Unable to initialize libcurl.\n");
- return 0;
+ if (r->CData == NULL) {
+ r->CData = NewStrBuf();
}
- QueueCurlContext(IO);
- return 1;
+ StrBufAppendBufPlain(r->CData, content, length, 0);
}
-void DeleteRssCfg(void *vptr)
+// Feed has been downloaded, now parse it.
+//
+void rss_parse_feed(StrBuf *Feed, struct rssroom *rooms)
{
- rss_aggregator *rncptr = (rss_aggregator *)vptr;
- AsyncIO *IO = &rncptr->IO;
- EVM_syslog(LOG_DEBUG, "RSS: destroying\n");
-
- FreeStrBuf(&rncptr->Url);
- FreeStrBuf(&rncptr->rooms);
- FreeStrBuf(&rncptr->CData);
- FreeStrBuf(&rncptr->Key);
- FreeStrBuf(&rncptr->IO.HttpReq.ReplyData);
- DeleteHash(&rncptr->OtherQRnumbers);
- FreeURL(&rncptr->IO.ConnectMe);
-
- DeleteHashPos (&rncptr->Pos);
- DeleteHash (&rncptr->Messages);
- if (rncptr->recp.recp_room != NULL)
- free(rncptr->recp.recp_room);
-
-
- if (rncptr->Item != NULL)
- {
- FreeStrBuf(&rncptr->Item->guid);
- FreeStrBuf(&rncptr->Item->title);
- FreeStrBuf(&rncptr->Item->link);
- FreeStrBuf(&rncptr->Item->linkTitle);
- FreeStrBuf(&rncptr->Item->reLink);
- FreeStrBuf(&rncptr->Item->reLinkTitle);
- FreeStrBuf(&rncptr->Item->description);
- FreeStrBuf(&rncptr->Item->channel_title);
- FreeStrBuf(&rncptr->Item->author_or_creator);
- FreeStrBuf(&rncptr->Item->author_url);
- FreeStrBuf(&rncptr->Item->author_email);
-
- free(rncptr->Item);
- }
- free(rncptr);
+ struct rssparser r;
+
+ memset(&r, 0, sizeof r);
+ r.rooms = rooms;
+ XML_Parser p = XML_ParserCreate("UTF-8");
+ XML_SetElementHandler(p, rss_start_element, rss_end_element);
+ XML_SetCharacterDataHandler(p, rss_handle_data);
+ XML_SetUserData(p, (void *)&r);
+ XML_Parse(p, ChrPtr(Feed), StrLength(Feed), XML_TRUE);
+ XML_ParserFree(p);
}
-eNextState RSSAggregatorTerminate(AsyncIO *IO)
+
+// Add a feed/room pair into the todo list
+//
+void rssclient_push_todo(char *rssurl, char *roomname)
{
- rss_aggregator *rncptr = (rss_aggregator *)IO->Data;
+ struct rssurl *r = NULL;
+ struct rssurl *thisone = NULL;
+ struct rssroom *newroom = NULL;
- EVM_syslog(LOG_DEBUG, "RSS: Terminating.\n");
+ syslog(LOG_DEBUG, "rssclient_push_todo(%s, %s)", rssurl, roomname);
+ for (r=rsstodo; r!=NULL; r=r->next) {
+ if (!strcasecmp(r->url, rssurl)) {
+ thisone = r;
+ }
+ }
+ if (thisone == NULL) {
+ thisone = malloc(sizeof(struct rssurl));
+ thisone->url = strdup(rssurl);
+ thisone->rooms = NULL;
+ thisone->next = rsstodo;
+ rsstodo = thisone;
+ }
- UnlinkRSSAggregator(rncptr);
- return eAbort;
+ newroom = malloc(sizeof(struct rssroom));
+ newroom->room = strdup(roomname);
+ newroom->next = thisone->rooms;
+ thisone->rooms = newroom;
}
-eNextState RSSAggregatorShutdownAbort(AsyncIO *IO)
-{
- const char *pUrl;
- rss_aggregator *rncptr = (rss_aggregator *)IO->Data;
- pUrl = IO->ConnectMe->PlainUrl;
- if (pUrl == NULL)
- pUrl = "";
- EV_syslog(LOG_DEBUG, "RSS: Aborting by shutdown: %s.\n", pUrl);
+// pull one feed (possibly multiple rooms)
+//
+void rss_pull_one_feed(struct rssurl *url)
+{
+ CURL *curl;
+ CURLcode res;
+ StrBuf *Downloaded = NULL;
+ syslog(LOG_DEBUG, "rss_pull_one_feed(%s)", url->url);
- UnlinkRSSAggregator(rncptr);
- return eAbort;
-}
-
-/*
- * Scan a room's netconfig to determine whether it is requesting any RSS feeds
- */
-void rssclient_scan_room(struct ctdlroom *qrbuf, void *data)
-{
- StrBuf *CfgData=NULL;
- StrBuf *CfgType;
- StrBuf *Line;
- rss_room_counter *Count = NULL;
- struct stat statbuf;
- char filename[PATH_MAX];
- int fd;
- int Done;
- rss_aggregator *rncptr = NULL;
- rss_aggregator *use_this_rncptr = NULL;
- void *vptr;
- const char *CfgPtr, *lPtr;
- const char *Err;
-
- pthread_mutex_lock(&RSSQueueMutex);
- if (GetHash(RSSQueueRooms, LKEY(qrbuf->QRnumber), &vptr))
- {
- syslog(LOG_DEBUG,
- "rssclient: [%ld] %s already in progress.\n",
- qrbuf->QRnumber,
- qrbuf->QRname);
- pthread_mutex_unlock(&RSSQueueMutex);
+ curl = curl_easy_init();
+ if (!curl) {
return;
}
- pthread_mutex_unlock(&RSSQueueMutex);
-
- assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
- if (server_shutting_down)
- return;
-
- /* Only do net processing for rooms that have netconfigs */
- fd = open(filename, 0);
- if (fd <= 0) {
- //syslog(LOG_DEBUG, "rssclient: %s no config.\n", qrbuf->QRname);
- return;
+ Downloaded = NewStrBuf();
+
+ curl_easy_setopt(curl, CURLOPT_URL, url->url);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); // Follow redirects
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CurlFillStrBuf_callback); // What to do with downloaded data
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, Downloaded); // Give it our StrBuf to work with
+ curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L); // Time out after 20 seconds
+ res = curl_easy_perform(curl); // Perform the request
+ if (res != CURLE_OK) {
+ syslog(LOG_WARNING, "Failed to load feed: %s", curl_easy_strerror(res));
}
+ curl_easy_cleanup(curl);
- if (server_shutting_down)
- return;
+ rss_parse_feed(Downloaded, url->rooms); // parse the feed
+ FreeStrBuf(&Downloaded); // free the downloaded feed data
+}
- if (fstat(fd, &statbuf) == -1) {
- syslog(LOG_DEBUG, "ERROR: could not stat configfile '%s' - %s\n",
- filename, strerror(errno));
- return;
+
+// We have a list, now download the feeds
+//
+void rss_pull_feeds(void)
+{
+ struct rssurl *r;
+ struct rssroom *rr;
+
+ while (rsstodo != NULL) {
+ rss_pull_one_feed(rsstodo);
+ r = rsstodo;
+ rsstodo = rsstodo->next;
+ while (r->rooms != NULL) {
+ rr = r->rooms;
+ r->rooms = r->rooms->next;
+ free(rr->room);
+ free(rr);
+ }
+ free(r->url);
+ free(r);
}
+}
- if (server_shutting_down)
- return;
- CfgData = NewStrBufPlain(NULL, statbuf.st_size + 1);
+// Scan a room's netconfig looking for RSS feed parsing requests
+//
+void rssclient_scan_room(struct ctdlroom *qrbuf, void *data)
+{
+ char *serialized_config = NULL;
+ int num_configs = 0;
+ char cfgline[SIZ];
+ int i = 0;
- if (StrBufReadBLOB(CfgData, &fd, 1, statbuf.st_size, &Err) < 0) {
- close(fd);
- FreeStrBuf(&CfgData);
- syslog(LOG_DEBUG, "ERROR: reading config '%s' - %s<br>\n",
- filename, strerror(errno));
+ serialized_config = LoadRoomNetConfigFile(qrbuf->QRnumber);
+ if (!serialized_config) {
return;
}
- close(fd);
- if (server_shutting_down)
- return;
-
- CfgPtr = NULL;
- CfgType = NewStrBuf();
- Line = NewStrBufPlain(NULL, StrLength(CfgData));
- Done = 0;
- while (!Done)
- {
- Done = StrBufSipLine(Line, CfgData, &CfgPtr) == 0;
- if (StrLength(Line) > 0)
- {
- lPtr = NULL;
- StrBufExtract_NextToken(CfgType, Line, &lPtr, '|');
- if (!strcasecmp("rssclient", ChrPtr(CfgType)))
- {
- if (Count == NULL)
- {
- Count = malloc(sizeof(rss_room_counter));
- Count->count = 0;
- }
- Count->count ++;
- rncptr = (rss_aggregator *) malloc(sizeof(rss_aggregator));
- memset (rncptr, 0, sizeof(rss_aggregator));
- rncptr->roomlist_parts = 1;
- rncptr->Url = NewStrBuf();
- StrBufExtract_NextToken(rncptr->Url, Line, &lPtr, '|');
-
- pthread_mutex_lock(&RSSQueueMutex);
- GetHash(RSSFetchUrls, SKEY(rncptr->Url), &vptr);
- use_this_rncptr = (rss_aggregator *)vptr;
- if (use_this_rncptr != NULL)
- {
- long *QRnumber;
- StrBufAppendBufPlain(use_this_rncptr->rooms,
- qrbuf->QRname,
- -1, 0);
- if (use_this_rncptr->roomlist_parts == 1)
- {
- use_this_rncptr->OtherQRnumbers = NewHash(1, lFlathash);
- }
- QRnumber = (long*)malloc(sizeof(long));
- *QRnumber = qrbuf->QRnumber;
- Put(use_this_rncptr->OtherQRnumbers, LKEY(qrbuf->QRnumber), QRnumber, NULL);
- use_this_rncptr->roomlist_parts++;
-
- pthread_mutex_unlock(&RSSQueueMutex);
-
- FreeStrBuf(&rncptr->Url);
- free(rncptr);
- rncptr = NULL;
- continue;
- }
- pthread_mutex_unlock(&RSSQueueMutex);
-
- rncptr->ItemType = RSS_UNSET;
-
- rncptr->rooms = NewStrBufPlain(qrbuf->QRname, -1);
-
- pthread_mutex_lock(&RSSQueueMutex);
- Put(RSSFetchUrls, SKEY(rncptr->Url), rncptr, DeleteRssCfg);
- pthread_mutex_unlock(&RSSQueueMutex);
+
+ num_configs = num_tokens(serialized_config, '\n');
+ for (i=0; i<num_configs; ++i) {
+ extract_token(cfgline, serialized_config, i, '\n', sizeof cfgline);
+ if (!strncasecmp(cfgline, HKEY("rssclient|"))) {
+ strcpy(cfgline, &cfgline[10]);
+ char *vbar = strchr(cfgline, '|');
+ if (vbar != NULL) {
+ *vbar = 0;
+ }
+ rssclient_push_todo(cfgline, qrbuf->QRname);
}
- }
}
- if (Count != NULL)
- {
- Count->QRnumber = qrbuf->QRnumber;
- pthread_mutex_lock(&RSSQueueMutex);
- syslog(LOG_DEBUG, "rssclient: [%ld] %s now starting.\n",
- qrbuf->QRnumber, qrbuf->QRname);
- Put(RSSQueueRooms, LKEY(qrbuf->QRnumber), Count, NULL);
- pthread_mutex_unlock(&RSSQueueMutex);
- }
- FreeStrBuf(&CfgData);
- FreeStrBuf(&CfgType);
- FreeStrBuf(&Line);
+
+ free(serialized_config);
}
+
/*
* Scan for rooms that have RSS client requests configured
*/
void rssclient_scan(void) {
- static int doing_rssclient = 0;
- rss_aggregator *rptr = NULL;
- void *vrptr = NULL;
- HashPos *it;
- long len;
- const char *Key;
+ time_t now = time(NULL);
/* Run no more than once every 15 minutes. */
- if ((time(NULL) - last_run) < 900) {
+ if ((now - last_run) < 900) {
+ syslog(LOG_DEBUG,
+ "Client: polling interval not yet reached; last run was %ldm%lds ago",
+ ((now - last_run) / 60),
+ ((now - last_run) % 60)
+ );
return;
}
- /*
- * This is a simple concurrency check to make sure only one rssclient run
- * is done at a time. We could do this with a mutex, but since we
- * don't really require extremely fine granularity here, we'll do it
- * with a static variable instead.
- */
- if (doing_rssclient) return;
- doing_rssclient = 1;
- if ((GetCount(RSSQueueRooms) > 0) || (GetCount(RSSFetchUrls) > 0))
- return;
-
- syslog(LOG_DEBUG, "rssclient started\n");
+ become_session(&rss_CC);
+ syslog(LOG_DEBUG, "rssclient started");
CtdlForEachRoom(rssclient_scan_room, NULL);
-
- pthread_mutex_lock(&RSSQueueMutex);
-
- it = GetNewHashPos(RSSFetchUrls, 0);
- while (!server_shutting_down &&
- GetNextHashPos(RSSFetchUrls, it, &len, &Key, &vrptr) &&
- (vrptr != NULL)) {
- rptr = (rss_aggregator *)vrptr;
- if (!rss_do_fetching(rptr))
- UnlinkRSSAggregator(rptr);
- }
- DeleteHashPos(&it);
- pthread_mutex_unlock(&RSSQueueMutex);
-
- syslog(LOG_DEBUG, "rssclient ended\n");
- doing_rssclient = 0;
+ rss_pull_feeds();
+ syslog(LOG_DEBUG, "rssclient ended");
+ last_run = time(NULL);
return;
}
-void rss_cleanup(void)
-{
- /* citthread_mutex_destroy(&RSSQueueMutex); TODO */
- DeleteHash(&RSSFetchUrls);
- DeleteHash(&RSSQueueRooms);
-}
-
CTDL_MODULE_INIT(rssclient)
{
- if (threading)
+ if (!threading)
+ {
+ syslog(LOG_INFO, "%s", curl_version());
+ CtdlRegisterSessionHook(rssclient_scan, EVT_TIMER, PRIO_AGGR + 300);
+ }
+ else
{
CtdlFillSystemContext(&rss_CC, "rssclient");
- pthread_mutex_init(&RSSQueueMutex, NULL);
- RSSQueueRooms = NewHash(1, lFlathash);
- RSSFetchUrls = NewHash(1, NULL);
- syslog(LOG_INFO, "%s\n", curl_version());
- CtdlRegisterSessionHook(rssclient_scan, EVT_TIMER);
- CtdlRegisterCleanupHook(rss_cleanup);
}
return "rssclient";
}
+
projects / citadel.git / blobdiff