/*
- * $Id: serv_rssclient.c 5652 2007-10-29 20:14:48Z ajc $
- *
* Bring external RSS feeds into rooms.
*
+ * Copyright (c) 2007-2010 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 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
+ * 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 <sys/types.h>
#include <sys/stat.h>
#include <expat.h>
+#include <curl/curl.h>
#include <libcitadel.h>
#include "citadel.h"
#include "server.h"
#include "support.h"
#include "config.h"
#include "threads.h"
-#include "room_ops.h"
#include "ctdl_module.h"
-#include "clientsocket.h"
#include "msgbase.h"
#include "parsedate.h"
#include "database.h"
#include "citadel_dirs.h"
#include "md5.h"
+#include "context.h"
+#include "event_client.h"
+#include "rss_atom_parser.h"
-struct rssnetcfg {
- struct rssnetcfg *next;
- char url[256];
- char *rooms;
-};
-
-struct rss_item {
- char *chardata;
- int chardata_len;
- char *roomlist;
- int done_parsing;
- char *guid;
- char *title;
- char *link;
- char *description;
- time_t pubdate;
- char channel_title[256];
- int item_tag_nesting;
-};
+#define TMP_MSGDATA 0xFF
+#define TMP_SHORTER_URL_OFFSET 0xFE
+#define TMP_SHORTER_URLS 0xFD
-struct rssnetcfg *rnclist = NULL;
+time_t last_run = 0L;
+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. */
-/*
- * Commit a fetched and parsed RSS item to disk
- */
-void rss_save_item(struct rss_item *ri) {
+eNextState RSSAggregatorTerminate(AsyncIO *IO);
- struct MD5Context md5context;
- u_char rawdigest[MD5_DIGEST_LEN];
- int i;
- char utmsgid[SIZ];
- struct cdbdata *cdbut;
- struct UseTable ut;
- struct CtdlMessage *msg;
- struct recptypes *recp = NULL;
- int msglen = 0;
+struct CitContext rss_CC;
- recp = (struct recptypes *) malloc(sizeof(struct recptypes));
- if (recp == NULL) return;
- memset(recp, 0, sizeof(struct recptypes));
- recp->recp_room = strdup(ri->roomlist);
- recp->num_room = num_tokens(ri->roomlist, '|');
- recp->recptypes_magic = RECPTYPES_MAGIC;
-
- /* 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) {
- snprintf(utmsgid, sizeof utmsgid, "rss/%s", ri->guid);
- }
- else {
- MD5Init(&md5context);
- if (ri->title != NULL) {
- MD5Update(&md5context, ri->title, strlen(ri->title));
- }
- if (ri->link != NULL) {
- MD5Update(&md5context, ri->link, strlen(ri->link));
- }
- MD5Final(rawdigest, &md5context);
- for (i=0; i<MD5_DIGEST_LEN; i++) {
- sprintf(&utmsgid[i*2], "%02X", (unsigned char) (rawdigest[i] & 0xff));
- utmsgid[i*2] = tolower(utmsgid[i*2]);
- utmsgid[(i*2)+1] = tolower(utmsgid[(i*2)+1]);
- }
- strcat(utmsgid, "_rss2ctdl");
+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);
}
+}
+typedef struct __networker_save_message {
+ AsyncIO IO;
+ struct CtdlMessage *Msg;
+ struct recptypes *recp;
+ rss_aggregator *Cfg;
+ StrBuf *MsgGUID;
+ StrBuf *Message;
+ struct UseTable ut;
+} networker_save_message;
- /* Find out if we've already seen this item */
- cdbut = cdb_fetch(CDB_USETABLE, utmsgid, strlen(utmsgid));
- if (cdbut != NULL) {
- /* Item has already been seen */
- lprintf(CTDL_DEBUG, "%s has already been seen\n", utmsgid);
- cdb_free(cdbut);
-
- /* rewrite the record anyway, to update the timestamp */
- strcpy(ut.ut_msgid, utmsgid);
- ut.ut_timestamp = time(NULL);
- cdb_store(CDB_USETABLE, utmsgid, strlen(utmsgid), &ut, sizeof(struct UseTable) );
- }
- else {
- /* Item has not been seen, so save it. */
- if (ri->description == NULL) ri->description = strdup("");
- for (i=strlen(ri->description); i>=0; --i) {
- if (isspace(ri->description[i])) {
- ri->description[i] = ' ';
- }
- }
+void DeleteRoomReference(long QRnumber)
+{
+ HashPos *At;
+ long HKLen;
+ const char *HK;
+ void *vData = NULL;
+ rss_room_counter *pRoomC;
- 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;
- msg->cm_fields['A'] = strdup("rss");
- msg->cm_fields['N'] = strdup(NODENAME);
- msg->cm_fields['U'] = strdup(ri->title);
- msg->cm_fields['T'] = malloc(64);
- snprintf(msg->cm_fields['T'], 64, "%ld", ri->pubdate);
- if (!IsEmptyStr(ri->channel_title)) {
- msg->cm_fields['O'] = strdup(ri->channel_title);
- }
+ At = GetNewHashPos(RSSQueueRooms, 0);
- msglen = 1024 + strlen(ri->link) + strlen(ri->description) ;
- msg->cm_fields['M'] = malloc(msglen);
- snprintf(msg->cm_fields['M'], msglen,
- "Content-type: text/html\r\n\r\n"
- "<html><body>\n"
- "%s<br><br>\n"
- "<a href=\"%s\">%s</a>\n"
- "</body></html>\n"
- ,
- ri->description,
- ri->link, ri->link
- );
-
- CtdlSubmitMsg(msg, recp, NULL);
- CtdlFreeMessage(msg);
-
- /* write the uidl to the use table so we don't store this item again */
- strcpy(ut.ut_msgid, utmsgid);
- ut.ut_timestamp = time(NULL);
- cdb_store(CDB_USETABLE, utmsgid, strlen(utmsgid), &ut, sizeof(struct UseTable) );
+ 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);
}
- free_recipients(recp);
+ DeleteHashPos(&At);
}
-
-
-/*
- * Convert an RDF/RSS datestamp into a time_t
- */
-time_t rdf_parsedate(char *p)
+void UnlinkRooms(rss_aggregator *Cfg)
{
- struct tm tm;
- time_t t = 0;
-
- if (!p) return 0L;
- if (strlen(p) < 10) return 0L;
-
- memset(&tm, 0, sizeof tm);
-
- /* YYYY-MM-DDTHH:MM format...
- */
- if ( (p[4] == '-') && (p[7] == '-') ) {
- tm.tm_year = atoi(&p[0]) - 1900;
- tm.tm_mon = atoi(&p[5]) - 1;
- tm.tm_mday = atoi(&p[8]);
- if ( (p[10] == 'T') && (p[13] == ':') ) {
- tm.tm_hour = atoi(&p[11]);
- tm.tm_min = atoi(&p[14]);
+
+ 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);
}
- return mktime(&tm);
+/*
+ if (server_shutting_down)
+ break; / * TODO */
+
+ DeleteHashPos(&At);
}
+}
- /* hmm... try RFC822 date stamp format */
+void UnlinkRSSAggregator(rss_aggregator *Cfg)
+{
+ HashPos *At;
- t = parsedate(p);
- if (t > 0) return(t);
+ UnlinkRooms(Cfg);
- /* yeesh. ok, just return the current date and time. */
- return(time(NULL));
+ 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 --;
-void rss_xml_start(void *data, const char *supplied_el, const char **attr) {
- struct rss_item *ri = (struct rss_item *) data;
- char el[256];
- char *sep = NULL;
-
- /* Axe the namespace, we don't care about it */
- safestrncpy(el, supplied_el, sizeof el);
- while (sep = strchr(el, ':'), sep) {
- strcpy(el, ++sep);
- }
+ if (Ctx->Cfg->RefCount == 0)
+ {
+ UnlinkRSSAggregator(Ctx->Cfg);
- if (!strcasecmp(el, "item")) {
- ++ri->item_tag_nesting;
-
- /* Initialize the feed item data structure */
- if (ri->guid != NULL) free(ri->guid);
- ri->guid = NULL;
- if (ri->title != NULL) free(ri->title);
- ri->title = NULL;
- if (ri->link != NULL) free(ri->link);
- ri->link = NULL;
- if (ri->description != NULL) free(ri->description);
- ri->description = NULL;
-
- /* Throw away any existing character data */
- if (ri->chardata_len > 0) {
- free(ri->chardata);
- ri->chardata = 0;
- ri->chardata_len = 0;
- }
}
+ pthread_mutex_unlock(&RSSQueueMutex);
-
-
+ CtdlFreeMessage(Ctx->Msg);
+ free_recipients(Ctx->recp);
+ FreeStrBuf(&Ctx->Message);
+ FreeStrBuf(&Ctx->MsgGUID);
+ free(Ctx);
+ last_run = time(NULL);
+ return eAbort;
}
-void rss_xml_end(void *data, const char *supplied_el) {
- struct rss_item *ri = (struct rss_item *) data;
- char el[256];
- char *sep = NULL;
+eNextState AbortNetworkSaveMessage (AsyncIO *IO)
+{
+ return eAbort; ///TODO
+}
- /* Axe the namespace, we don't care about it */
- safestrncpy(el, supplied_el, sizeof el);
- while (sep = strchr(el, ':'), sep) {
- strcpy(el, ++sep);
- }
+eNextState RSSSaveMessage(AsyncIO *IO)
+{
+ networker_save_message *Ctx = (networker_save_message *) IO->Data;
- if ( (!strcasecmp(el, "title")) && (ri->item_tag_nesting == 0) && (ri->chardata != NULL) ) {
- safestrncpy(ri->channel_title, ri->chardata, sizeof ri->channel_title);
- striplt(ri->channel_title);
- }
+ Ctx->Msg->cm_fields['M'] = SmashStrBuf(&Ctx->Message);
- if ( (!strcasecmp(el, "guid")) && (ri->chardata != NULL) ) {
- if (ri->guid != NULL) free(ri->guid);
- striplt(ri->chardata);
- ri->guid = strdup(ri->chardata);
- }
+ CtdlSubmitMsg(Ctx->Msg, Ctx->recp, NULL, 0);
- if ( (!strcasecmp(el, "title")) && (ri->chardata != NULL) ) {
- if (ri->title != NULL) free(ri->title);
- striplt(ri->chardata);
- ri->title = strdup(ri->chardata);
- }
+ /* write the uidl to the use table so we don't store this item again */
+ cdb_store(CDB_USETABLE, SKEY(Ctx->MsgGUID), &Ctx->ut, sizeof(struct UseTable) );
- if ( (!strcasecmp(el, "link")) && (ri->chardata != NULL) ) {
- if (ri->link != NULL) free(ri->link);
- striplt(ri->chardata);
- ri->link = strdup(ri->chardata);
- }
+ return eTerminateConnection;
+}
- if ( (!strcasecmp(el, "description")) && (ri->chardata != NULL) ) {
- if (ri->description != NULL) free(ri->description);
- ri->description = strdup(ri->chardata);
- }
+eNextState RSS_FetchNetworkUsetableEntry(AsyncIO *IO)
+{
+ struct cdbdata *cdbut;
+ networker_save_message *Ctx = (networker_save_message *) IO->Data;
- if ( ((!strcasecmp(el, "pubdate")) || (!strcasecmp(el, "date"))) && (ri->chardata != NULL) ) {
- striplt(ri->chardata);
- ri->pubdate = rdf_parsedate(ri->chardata);
- }
+ /* Find out if we've already seen this item */
+ strcpy(Ctx->ut.ut_msgid, ChrPtr(Ctx->MsgGUID)); /// TODO
+ Ctx->ut.ut_timestamp = time(NULL);
- if (!strcasecmp(el, "item")) {
- --ri->item_tag_nesting;
- rss_save_item(ri);
- }
+ cdbut = cdb_fetch(CDB_USETABLE, SKEY(Ctx->MsgGUID));
+#ifndef DEBUG_RSS
+ if (cdbut != NULL) {
+ /* Item has already been seen */
+ syslog(LOG_DEBUG, "%s has already been seen\n", ChrPtr(Ctx->MsgGUID));
+ cdb_free(cdbut);
- if ( (!strcasecmp(el, "rss")) || (!strcasecmp(el, "rdf")) ) {
- lprintf(CTDL_DEBUG, "End of feed detected. Closing parser.\n");
- ri->done_parsing = 1;
+ /* rewrite the record anyway, to update the timestamp */
+ cdb_store(CDB_USETABLE,
+ SKEY(Ctx->MsgGUID),
+ &Ctx->ut, sizeof(struct UseTable) );
+ return eAbort;
}
-
- if (ri->chardata_len > 0) {
- free(ri->chardata);
- ri->chardata = 0;
- ri->chardata_len = 0;
+ else
+#endif
+ {
+ NextDBOperation(IO, RSSSaveMessage);
+ return eSendMore;
}
+}
+void RSSQueueSaveMessage(struct CtdlMessage *Msg, struct recptypes *recp, StrBuf *MsgGUID, StrBuf *MessageBody, rss_aggregator *Cfg)
+{
+ networker_save_message *Ctx;
+ Ctx = (networker_save_message *) malloc(sizeof(networker_save_message));
+ memset(Ctx, 0, sizeof(networker_save_message));
+
+ 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);
}
/*
- * This callback stores up the data which appears in between tags.
+ * Commit a fetched and parsed RSS item to disk
*/
-void rss_xml_chardata(void *data, const XML_Char *s, int len) {
- struct rss_item *ri = (struct rss_item *) data;
- int old_len;
- int new_len;
- char *new_buffer;
-
- old_len = ri->chardata_len;
- new_len = old_len + len;
- new_buffer = realloc(ri->chardata, new_len + 1);
- if (new_buffer != NULL) {
- memcpy(&new_buffer[old_len], s, len);
- new_buffer[new_len] = 0;
- ri->chardata = new_buffer;
- ri->chardata_len = new_len;
- }
-}
-
+void rss_save_item(rss_item *ri, rss_aggregator *Cfg)
+{
+ struct MD5Context md5context;
+ u_char rawdigest[MD5_DIGEST_LEN];
+ struct CtdlMessage *msg;
+ struct recptypes *recp = NULL;
+ int msglen = 0;
+ StrBuf *Message;
+ StrBuf *guid;
+ StrBuf *Buf;
-/*
- * Parse a URL into host, port number, and resource identifier.
- */
-int parse_url(char *url, char *hostname, int *port, char *identifier)
-{
- char protocol[1024];
- char scratch[1024];
- char *ptr = NULL;
- char *nptr = NULL;
-
- strcpy(scratch, url);
- ptr = (char *)strchr(scratch, ':');
- if (!ptr) {
- return(1); /* no protocol specified */
+ recp = (struct recptypes *) malloc(sizeof(struct recptypes));
+ if (recp == NULL) return;
+ memset(recp, 0, sizeof(struct recptypes));
+ Buf = NewStrBufDup(Cfg->rooms);
+ recp->recp_room = SmashStrBuf(&Buf);
+ recp->num_room = Cfg->roomlist_parts;
+ recp->recptypes_magic = RECPTYPES_MAGIC;
+
+ Cfg->RefCount ++;
+ /* 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);
}
-
- strcpy(ptr, "");
- strcpy(protocol, scratch);
- if (strcmp(protocol, "http")) {
- return(2); /* not HTTP */
+ else {
+ MD5Init(&md5context);
+ if (ri->title != NULL) {
+ MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->title), StrLength(ri->title));
+ }
+ if (ri->link != NULL) {
+ MD5Update(&md5context, (const unsigned char*)ChrPtr(ri->link), StrLength(ri->link));
+ }
+ MD5Final(rawdigest, &md5context);
+ guid = NewStrBufPlain(NULL, MD5_DIGEST_LEN * 2 + 12 /* _rss2ctdl*/);
+ StrBufHexEscAppend(guid, NULL, rawdigest, MD5_DIGEST_LEN);
+ StrBufAppendBufPlain(guid, HKEY("_rss2ctdl"), 0);
}
- strcpy(scratch, url);
- ptr = (char *) strstr(scratch, "//");
- if (!ptr) {
- return(3); /* no server specified */
+ /* translate Item into message. */
+ 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));
}
- ptr += 2;
- strcpy(hostname, ptr);
- nptr = (char *)strchr(ptr, ':');
- if (!nptr) {
- *port = 80; /* default */
- nptr = (char *)strchr(hostname, '/');
+ 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 (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 {
- sscanf(nptr, ":%d", port);
- nptr = (char *)strchr(hostname, ':');
+ msg->cm_fields['A'] = strdup("rss");
}
- if (nptr) {
- *nptr = '\0';
- }
+ 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';
+ }
+ Encoded = NewStrBufPlain(Sbj, len);
+ free(Sbj);
- nptr = (char *)strchr(ptr, '/');
-
- if (!nptr) {
- return(4); /* no url specified */
+ StrBufTrim(Encoded);
+ StrBufRFC2047encode(&QPEncoded, Encoded);
+
+ msg->cm_fields['U'] = SmashStrBuf(&QPEncoded);
+ FreeStrBuf(&Encoded);
}
-
- strcpy(identifier, nptr);
- return(0);
+ 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));
+ }
+ }
+ 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);
+
+ RSSQueueSaveMessage(msg, recp, guid, Message, Cfg);
}
+
/*
* Begin a feed parse
*/
-void rss_do_fetching(char *url, char *rooms) {
- char buf[1024];
- char rsshost[1024];
- int rssport = 80;
- char rssurl[1024];
- struct rss_item ri;
- XML_Parser xp;
- int sock = (-1);
- int got_bytes = (-1);
- int redirect_count = 0;
-
- /* Parse the URL */
- if (parse_url(url, rsshost, &rssport, rssurl) != 0) {
- lprintf(CTDL_ALERT, "Invalid URL: %s\n", url);
- }
-
- if (CtdlThreadCheckStop())
- return;
+int rss_do_fetching(rss_aggregator *Cfg)
+{
+ rss_item *ri;
+
+ time_t now;
+ AsyncIO *IO;
+
+ now = time(NULL);
+
+ if ((Cfg->next_poll != 0) && (now < Cfg->next_poll))
+ return 0;
+ Cfg->RefCount = 1;
+
+ 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;
- xp = XML_ParserCreateNS("UTF-8", ':');
- if (!xp) {
- lprintf(CTDL_ALERT, "Cannot create XML parser!\n");
- return;
- }
- memset(&ri, 0, sizeof(struct rss_item));
- ri.roomlist = rooms;
- XML_SetElementHandler(xp, rss_xml_start, rss_xml_end);
- XML_SetCharacterDataHandler(xp, rss_xml_chardata);
- XML_SetUserData(xp, &ri);
+ syslog(LOG_DEBUG, "Fetching RSS feed <%s>\n", ChrPtr(Cfg->Url));
+ ParseURL(&IO->ConnectMe, Cfg->Url, 80);
+ CurlPrepareURL(IO->ConnectMe);
- if (CtdlThreadCheckStop())
+ if (! evcurl_init(IO,
+// Ctx,
+ NULL,
+ "Citadel RSS Client",
+ ParseRSSReply,
+ RSSAggregatorTerminate))
{
- XML_ParserFree(xp);
- return;
+ syslog(LOG_DEBUG, "Unable to initialize libcurl.\n");
+ return 0;
}
-
-retry: lprintf(CTDL_NOTICE, "Connecting to <%s>\n", rsshost);
- sprintf(buf, "%d", rssport);
- sock = sock_connect(rsshost, buf, "tcp");
- if (sock >= 0) {
- lprintf(CTDL_DEBUG, "Connected!\n");
-
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- snprintf(buf, sizeof buf, "GET %s HTTP/1.0", rssurl);
- lprintf(CTDL_DEBUG, "<%s\n", buf);
- sock_puts(sock, buf);
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- snprintf(buf, sizeof buf, "Host: %s", rsshost);
- lprintf(CTDL_DEBUG, "<%s\n", buf);
- sock_puts(sock, buf);
+ evcurl_handle_start(IO);
+ return 1;
+}
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- snprintf(buf, sizeof buf, "User-Agent: %s", CITADEL);
- lprintf(CTDL_DEBUG, "<%s\n", buf);
- sock_puts(sock, buf);
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- snprintf(buf, sizeof buf, "Accept: */*");
- lprintf(CTDL_DEBUG, "<%s\n", buf);
- sock_puts(sock, buf);
+void DeleteRssCfg(void *vptr)
+{
+ rss_aggregator *rncptr = (rss_aggregator *)vptr;
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- sock_puts(sock, "");
+ FreeStrBuf(&rncptr->Url);
+ FreeStrBuf(&rncptr->rooms);
+ FreeStrBuf(&rncptr->CData);
+ FreeStrBuf(&rncptr->Key);
+ FreeStrBuf(&rncptr->IO.HttpReq.ReplyData);
+ DeleteHash(&rncptr->OtherQRnumbers);
+ FreeURL(&rncptr->IO.ConnectMe);
- if (CtdlThreadCheckStop())
- goto shutdown ;
-
- if (sock_getln(sock, buf, sizeof buf) >= 0) {
- lprintf(CTDL_DEBUG, ">%s\n", buf);
- remove_token(buf, 0, ' ');
-
- /* 200 OK */
- if (buf[0] == '2') {
-
- while (got_bytes = sock_getln(sock, buf, sizeof buf),
- (got_bytes >= 0 && (strcmp(buf, "")) && (strcmp(buf, "\r"))) ) {
- if (CtdlThreadCheckStop())
- goto shutdown ;
- /* discard headers */
- }
-
- while (got_bytes = sock_read(sock, buf, sizeof buf, 0),
- ((got_bytes>=0) && (ri.done_parsing == 0)) ) {
- if (CtdlThreadCheckStop())
- goto shutdown ;
- XML_Parse(xp, buf, got_bytes, 0);
- }
- if (ri.done_parsing == 0) XML_Parse(xp, "", 0, 1);
- }
+ 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);
+}
- /* 30X redirect */
- else if ( (!strncmp(buf, "30", 2)) && (redirect_count < 16) ) {
- while (got_bytes = sock_getln(sock, buf, sizeof buf),
- (got_bytes >= 0 && (strcmp(buf, "")) && (strcmp(buf, "\r"))) ) {
- if (CtdlThreadCheckStop())
- goto shutdown ;
- if (!strncasecmp(buf, "Location:", 9)) {
- ++redirect_count;
- strcpy(buf, &buf[9]);
- striplt(buf);
- if (parse_url(buf, rsshost, &rssport, rssurl) == 0) {
- sock_close(sock);
- goto retry;
- }
- else {
- lprintf(CTDL_ALERT, "Invalid URL: %s\n", buf);
- }
- }
- }
- }
+eNextState RSSAggregatorTerminate(AsyncIO *IO)
+{
+ rss_aggregator *rncptr = (rss_aggregator *)IO->Data;
+ /*
+ HashPos *At;
+ long HKLen;
+ const char *HK;
+ void *vData;
+ */
+ pthread_mutex_lock(&RSSQueueMutex);
+ rncptr->RefCount --;
+ if (rncptr->RefCount == 0)
+ {
+ UnlinkRSSAggregator(rncptr);
- }
-shutdown:
- sock_close(sock);
- }
- else {
- lprintf(CTDL_ERR, "Could not connect: %s\n", strerror(errno));
}
+ pthread_mutex_unlock(&RSSQueueMutex);
+/*
+ At = GetNewHashPos(RSSFetchUrls, 0);
- XML_ParserFree(xp);
-
- /* Free the feed item data structure */
- if (ri.guid != NULL) free(ri.guid);
- ri.guid = NULL;
- if (ri.title != NULL) free(ri.title);
- ri.title = NULL;
- if (ri.link != NULL) free(ri.link);
- ri.link = NULL;
- if (ri.description != NULL) free(ri.description);
- ri.description = NULL;
- if (ri.chardata_len > 0) {
- free(ri.chardata);
- ri.chardata = 0;
- ri.chardata_len = 0;
- }
-}
+ pthread_mutex_lock(&RSSQueueMutex);
+ GetHashPosFromKey(RSSFetchUrls, SKEY(rncptr->Url), At);
+ GetHashPos(RSSFetchUrls, At, &HKLen, &HK, &vData);
+ DeleteEntryFromHash(RSSFetchUrls, At);
+ pthread_mutex_unlock(&RSSQueueMutex);
+ DeleteHashPos(&At);
+*/
+ 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];
- char buf[1024];
- char instr[32];
- FILE *fp;
- char feedurl[256];
- struct rssnetcfg *rncptr = NULL;
- struct rssnetcfg *use_this_rncptr = NULL;
- int len = 0;
- char *ptr = NULL;
+ 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);
+ return;
+ }
+ pthread_mutex_unlock(&RSSQueueMutex);
assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
- if (CtdlThreadCheckStop())
+ if (server_shutting_down)
return;
/* Only do net processing for rooms that have netconfigs */
- fp = fopen(filename, "r");
- if (fp == NULL) {
+ fd = open(filename, 0);
+ if (fd <= 0) {
+ //syslog(LOG_DEBUG, "rssclient: %s no config.\n", qrbuf->QRname);
return;
}
- while (fgets(buf, sizeof buf, fp) != NULL && !CtdlThreadCheckStop()) {
- buf[strlen(buf)-1] = 0;
-
- extract_token(instr, buf, 0, '|', sizeof instr);
- if (!strcasecmp(instr, "rssclient")) {
-
- use_this_rncptr = NULL;
+ if (server_shutting_down)
+ return;
- extract_token(feedurl, buf, 1, '|', sizeof feedurl);
+ if (fstat(fd, &statbuf) == -1) {
+ syslog(LOG_DEBUG, "ERROR: could not stat configfile '%s' - %s\n",
+ filename, strerror(errno));
+ return;
+ }
- /* If any other rooms have requested the same feed, then we will just add this
- * room to the target list for that client request.
- */
- for (rncptr=rnclist; rncptr!=NULL; rncptr=rncptr->next) {
- if (!strcmp(rncptr->url, feedurl)) {
- use_this_rncptr = rncptr;
- }
- }
+ if (server_shutting_down)
+ return;
- /* Otherwise create a new client request */
- if (use_this_rncptr == NULL) {
- rncptr = (struct rssnetcfg *) malloc(sizeof(struct rssnetcfg));
- if (rncptr != NULL) {
- rncptr->next = rnclist;
- safestrncpy(rncptr->url, feedurl, sizeof rncptr->url);
- rncptr->rooms = NULL;
- rnclist = rncptr;
- use_this_rncptr = rncptr;
- }
- }
+ CfgData = NewStrBufPlain(NULL, statbuf.st_size + 1);
- /* Add the room name to the request */
- if (use_this_rncptr != NULL) {
- if (use_this_rncptr->rooms == NULL) {
- rncptr->rooms = strdup(qrbuf->QRname);
- }
- else {
- len = strlen(use_this_rncptr->rooms) + strlen(qrbuf->QRname) + 5;
- ptr = realloc(use_this_rncptr->rooms, len);
- if (ptr != NULL) {
- strcat(ptr, "|");
- strcat(ptr, qrbuf->QRname);
- use_this_rncptr->rooms = ptr;
- }
- }
- }
+ 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));
+ 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)
+ {
+ /* mustn't attach to an active session */
+ if (use_this_rncptr->RefCount > 0)
+ {
+ DeleteRssCfg(rncptr);
+ Count->count--;
+ }
+ else
+ {
+ 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);
}
-
+ }
}
-
- fclose(fp);
-
+ 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);
}
/*
* Scan for rooms that have RSS client requests configured
*/
-void *rssclient_scan(void *args) {
- static time_t last_run = 0L;
+void rssclient_scan(void) {
static int doing_rssclient = 0;
- struct rssnetcfg *rptr = NULL;
- struct CitContext rssclientCC;
-
- /* Give this thread its own private CitContext */
- memset(&rssclientCC, 0, sizeof(struct CitContext));
- rssclientCC.internal_pgm = 1;
- rssclientCC.cs_pid = 0;
- pthread_setspecific(MyConKey, (void *)&rssclientCC );
-
- CtdlThreadAllocTSD();
+ rss_aggregator *rptr = NULL;
+ void *vrptr = NULL;
+ HashPos *it;
+ long len;
+ const char *Key;
+
+ /* Run no more than once every 15 minutes. */
+ if ((time(NULL) - last_run) < 900) {
+ return;
+ }
/*
* This is a simple concurrency check to make sure only one rssclient run
* don't really require extremely fine granularity here, we'll do it
* with a static variable instead.
*/
- if (doing_rssclient) return NULL;
+ if (doing_rssclient) return;
doing_rssclient = 1;
- lprintf(CTDL_DEBUG, "rssclient started\n");
- ForEachRoom(rssclient_scan_room, NULL);
+ syslog(LOG_DEBUG, "rssclient started\n");
+ CtdlForEachRoom(rssclient_scan_room, NULL);
- while (rnclist != NULL && !CtdlThreadCheckStop()) {
- rss_do_fetching(rnclist->url, rnclist->rooms);
- rptr = rnclist;
- rnclist = rnclist->next;
- if (rptr->rooms != NULL) free(rptr->rooms);
- free(rptr);
+ 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 (rptr->RefCount == 0)
+ if (!rss_do_fetching(rptr))
+ UnlinkRSSAggregator(rptr);
}
+ DeleteHashPos(&it);
+ pthread_mutex_unlock(&RSSQueueMutex);
- lprintf(CTDL_DEBUG, "rssclient ended\n");
- last_run = time(NULL);
+ syslog(LOG_DEBUG, "rssclient ended\n");
doing_rssclient = 0;
- if (!CtdlThreadCheckStop())
- CtdlThreadSchedule ("RSS Client", CTDLTHREAD_BIGSTACK, rssclient_scan, NULL, last_run + config.c_net_freq);
- else
- CtdlLogPrintf(CTDL_DEBUG, "rssclient: Task STOPPED.\n");
- return NULL;
+ return;
+}
+
+void rss_cleanup(void)
+{
+ /* citthread_mutex_destroy(&RSSQueueMutex); TODO */
+ DeleteHash(&RSSFetchUrls);
+ DeleteHash(&RSSQueueRooms);
}
{
if (threading)
{
- CtdlThreadSchedule ("RSS Client", CTDLTHREAD_BIGSTACK, rssclient_scan, NULL, 0);
- }
- /* return our Subversion id for the Log */
- return "$Id: serv_rssclient.c 5652 2007-10-29 20:14:48Z ajc $";
+ 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