+++ /dev/null
-/*
- * RSS feed generator (could be adapted in the future to feed both RSS and Atom)
- *
- * Copyright (c) 2010-2012 by the citadel.org team
- *
- * 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
- * GNU General Public License for more details.
- */
-
-#include "webcit.h"
-#include "webserver.h"
-
-/*
- * RSS feed generator -- do one message
- */
-void feed_rss_one_message(long msgnum) {
- int in_body = 0;
- int in_messagetext = 0;
- int found_title = 0;
- int found_guid = 0;
- char pubdate[128];
- StrBuf *messagetext = NULL;
- int is_top_level_post = 1;
- const char *BufPtr = NULL;
- StrBuf *Line = NewStrBufPlain(NULL, 1024);
- char buf[1024];
- int permalink_hash = 0;
-
- /* Phase 1: read the message into memory */
- serv_printf("MSG4 %ld", msgnum);
- serv_getln(buf, sizeof buf);
- if (buf[0] != '1') return;
- StrBuf *ServerResponse = NewStrBuf();
- while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
- StrBufAppendPrintf(ServerResponse, "%s\n", buf);
- }
-
- /* Phase 2: help SkyNet become self-aware */
- BufPtr = NULL;
- while (StrBufSipLine(Line, ServerResponse, &BufPtr), ((BufPtr!=StrBufNOTNULL)&&(BufPtr!=NULL)) ) {
- if (in_body) {
- /* do nothing */
- }
- else if (StrLength(Line) == 0) {
- ++in_body;
- }
- else if ((StrLength(Line) > 5) && (!strncasecmp(ChrPtr(Line), "wefw=", 5))) {
- is_top_level_post = 0; /* presence of references means it's a reply/comment */
- }
- else if ((StrLength(Line) > 5) && (!strncasecmp(ChrPtr(Line), "msgn=", 5))) {
- StrBufCutLeft(Line, 5);
- permalink_hash = ThreadIdHash(Line);
- }
- }
-
- /*
- * Phase 3: output the message in RSS <item> form
- * (suppress replies [comments] if this is a blog room)
- */
- if ( (WC->CurRoom.view != VIEW_BLOG) || (is_top_level_post == 1) ) {
- wc_printf("<item>");
- wc_printf("<link>%s/readfwd?go=", ChrPtr(site_prefix));
- urlescputs(ChrPtr(WC->CurRoom.name));
- if ((WC->CurRoom.view == VIEW_BLOG) && (permalink_hash != 0)) {
- wc_printf("?p=%d", permalink_hash);
- }
- else {
- wc_printf("?start_reading_at=%ld", msgnum);
- }
- wc_printf("</link>");
-
- BufPtr = NULL;
- in_body = 0;
- in_messagetext = 0;
- while (StrBufSipLine(Line, ServerResponse, &BufPtr), ((BufPtr!=StrBufNOTNULL)&&(BufPtr!=NULL)) ) {
- safestrncpy(buf, ChrPtr(Line), sizeof buf);
-
- /* XML parsers can be picky; strip out nonprintable header characters */
- if ((strlen(buf)>=6) && (buf[4]=='=')) {
- char *p = &buf[5];
- while (*p) {
- if (!isprint(*p)) {
- *p = 0;
- }
- ++p;
- }
- }
-
- /* Now output fields */
- if (in_body) {
- if (in_messagetext) {
- StrBufAppendBufPlain(messagetext, buf, -1, 0);
- StrBufAppendBufPlain(messagetext, HKEY("\r\n"), 0);
- }
- else if (IsEmptyStr(buf)) {
- in_messagetext = 1;
- }
- }
- else if (!strncasecmp(buf, "subj=", 5)) {
- wc_printf("<title>");
- escputs(&buf[5]);
- wc_printf("</title>");
- ++found_title;
- }
- else if (!strncasecmp(buf, "exti=", 5)) {
- wc_printf("<guid isPermaLink=\"false\">");
- escputs(&buf[5]);
- wc_printf("</guid>");
- ++found_guid;
- }
- else if (!strncasecmp(buf, "time=", 5)) {
- http_datestring(pubdate, sizeof pubdate, atol(&buf[5]));
- wc_printf("<pubDate>%s</pubDate>", pubdate);
- }
- else if (!strncasecmp(buf, "text", 4)) {
- if (!found_title) {
- wc_printf("<title>Message #%ld</title>", msgnum);
- }
- if (!found_guid) {
- wc_printf("<guid isPermaLink=\"false\">%ld@%s</guid>",
- msgnum,
- ChrPtr(WC->serv_info->serv_humannode)
- );
- }
- wc_printf("<description>");
- in_body = 1;
- messagetext = NewStrBuf();
- }
- }
-
- if (in_body) {
- cdataout((char*)ChrPtr(messagetext));
- FreeStrBuf(&messagetext);
- wc_printf("</description>");
- }
-
- wc_printf("</item>");
- }
-
- FreeStrBuf(&Line);
- FreeStrBuf(&ServerResponse);
- return;
-}
-
-
-/*
- * RSS feed generator -- go through the message list
- */
-void feed_rss_do_messages(void) {
- wcsession *WCC = WC;
- int num_msgs = 0;
- int i;
- SharedMessageStatus Stat;
- message_summary *Msg = NULL;
-
- memset(&Stat, 0, sizeof Stat);
- Stat.maxload = INT_MAX;
- Stat.lowest_found = (-1);
- Stat.highest_found = (-1);
- num_msgs = load_msg_ptrs("MSGS ALL", NULL, NULL, &Stat, NULL, NULL, NULL, NULL, 0);
- if (num_msgs < 1) return;
-
- i = num_msgs; /* convention is to feed newest-to-oldest */
- while (i > 0) {
- Msg = GetMessagePtrAt(i-1, WCC->summ);
- if (Msg != NULL) {
- feed_rss_one_message(Msg->msgnum);
- }
- --i;
- }
-}
-
-
-/*
- * Output the room info file of the current room as a <description> for the channel
- */
-void feed_rss_do_room_info_as_description(void)
-{
- wc_printf("<description>");
- escputs(ChrPtr(WC->CurRoom.name)); /* FIXME use the output of RINF instead */
- wc_printf("</description>\r\n");
-}
-
-
-/*
- * Entry point for RSS feed generator
- */
-void feed_rss(void) {
- char buf[1024];
-
- output_headers(0, 0, 0, 0, 1, 0);
- hprintf("Content-type: text/xml; charset=utf-8\r\n");
- hprintf(
- "Server: %s / %s\r\n"
- "Connection: close\r\n"
- ,
- PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
- );
- begin_burst();
-
- wc_printf("<?xml version=\"1.0\"?>"
- "<rss version=\"2.0\">"
- "<channel>"
- );
-
- wc_printf("<title>");
- escputs(ChrPtr(WC->CurRoom.name));
- wc_printf("</title>");
-
- wc_printf("<link>");
- escputs(ChrPtr(site_prefix));
- wc_printf("/</link>");
-
- serv_puts("RINF");
- serv_getln(buf, sizeof buf);
- if (buf[0] == '1') {
- wc_printf("<description>\r\n");
- while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
- escputs(buf);
- wc_printf("\r\n");
- }
- wc_printf("</description>");
- }
-
- wc_printf("<image><title>");
- escputs(ChrPtr(WC->CurRoom.name));
- wc_printf("</title><url>");
- escputs(ChrPtr(site_prefix));
- wc_printf("/roompic?room=");
- urlescputs(ChrPtr(WC->CurRoom.name));
- wc_printf("</url><link>");
- escputs(ChrPtr(site_prefix));
- wc_printf("/</link></image>\r\n");
-
- feed_rss_do_room_info_as_description();
- feed_rss_do_messages();
-
- wc_printf("</channel>"
- "</rss>"
- "\r\n\r\n"
- );
-
- wDumpContent(0);
-}
-
-
-/*
- * Offer the RSS feed meta tag for this room
- */
-void tmplput_rssmeta(StrBuf *Target, WCTemplputParams *TP)
-{
- wcsession *WCC = WC;
- char feed_link[1024];
-
- strcpy(feed_link, "/feed_rss?go=");
- urlesc(&feed_link[20], sizeof(feed_link) - 20, (char *)ChrPtr(WCC->CurRoom.name) );
- StrBufAppendPrintf(Target,
- "<link rel=\"alternate\" title=\"RSS\" href=\"%s\" type=\"application/rss+xml\">",
- feed_link
- );
-}
-
-
-/*
- * Offer the RSS feed button for this room
- */
-void tmplput_rssbutton(StrBuf *Target, WCTemplputParams *TP)
-{
- StrBuf *FeedLink = NULL;
-
- FeedLink = NewStrBufPlain(HKEY("/feed_rss?go="));
- StrBufUrlescAppend(FeedLink, WC->CurRoom.name, NULL);
-
- StrBufAppendPrintf(Target, "<a type=\"application/rss+xml\" href=\"");
- StrBufAppendBuf(Target, FeedLink, 0);
- StrBufAppendPrintf(Target, "\"><img src=\"static/webcit_icons/essen/16x16/rss.png\" alt=\"RSS\">");
- StrBufAppendPrintf(Target, "</a>");
- FreeStrBuf(&FeedLink);
-}
-
-
-void
-InitModule_RSS
-(void)
-{
- WebcitAddUrlHandler(HKEY("feed_rss"), "", 0, feed_rss, ANONYMOUS|COOKIEUNNEEDED);
- RegisterNamespace("THISROOM:FEED:RSS", 0, 0, tmplput_rssbutton, NULL, CTX_NONE);
- RegisterNamespace("THISROOM:FEED:RSSMETA", 0, 0, tmplput_rssmeta, NULL, CTX_NONE);
-}
projects / citadel.git / blobdiff