Artifact 176d496b6ef4a6923a3577e9b908796bdd202b25

File src/rss.c part of check-in [07eaead5dc] - Added RSS feed. You can set the RSS title, description in Setup. Added header to style to include title and pointer to the new RSS feed. The new RSS feed is BaseURL/timeline.rss by jnc on 2007-09-23 18:24:21.

/*
** Copyright (c) 2007 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public
** License version 2 as published by the Free Software Foundation.
**
** 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 library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA  02111-1307, USA.
**
** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file contains code used to create a RSS feed for the CGI interface.
*/
#include "config.h"
#include "rss.h"
#include <assert.h>

time_t rss_datetime_to_time_t(char *dt){
  struct tm the_tm;
  
  the_tm.tm_year = atoi(dt)-1900;
  the_tm.tm_mon  = atoi(&dt[5])-1;
  the_tm.tm_mday = atoi(&dt[8]);
  the_tm.tm_hour = atoi(&dt[11]);
  the_tm.tm_min  = atoi(&dt[14]);
  the_tm.tm_sec  = atoi(&dt[17]);
  
  return mktime(&the_tm);
}

/*
** WEBPAGE: timeline.rss
*/

void page_timeline_rss(void){
  Stmt q;
  int nLine=0;
  char *zPubDate, *zRSSTitle, *zRSSDescr, *zFreeRSSTitle=0;
  const char zSQL[] =
    @ SELECT
    @   blob.rid,
    @   uuid,
    @   datetime(event.mtime),
    @   coalesce(ecomment,comment),
    @   coalesce(euser,user),
    @   (SELECT count(*) FROM plink WHERE pid=blob.rid AND isprim),
    @   (SELECT count(*) FROM plink WHERE cid=blob.rid)
    @ FROM event, blob
    @ WHERE blob.rid=event.objid
    @ ORDER BY event.mtime DESC
  ;
  
  cgi_set_content_type("application/rss+xml");
  
  zRSSTitle = db_get("rss-title", 0);
  if( zRSSTitle==0 ){
    zFreeRSSTitle = zRSSTitle = mprintf("Fossil source repository for: %s",
      g.zBaseURL);
  }
  zRSSDescr = db_get("rss-description", 0);
  if( zRSSDescr==0 ){
    zRSSDescr = zRSSTitle;
  }
  
  zPubDate = cgi_rfc822_datestamp(time(NULL));
  
  @ <?xml version="1.0"?>
  @ <rss version="2.0">
  @   <channel>
  @     <title>%s(zRSSTitle)</title>
  @     <link>%s(g.zBaseURL)</link>
  @     <description>%s(zRSSDescr)</description>
  @     <pubDate>%s(zPubDate)</pubDate>
  @     <generator>Fossil version %s(MANIFEST_VERSION) %s(MANIFEST_DATE)</generator>
  db_prepare(&q, zSQL);
  while( db_step(&q)==SQLITE_ROW && nLine<=20 ){
    const char *zId = db_column_text(&q, 1);
    const char *zDate = db_column_text(&q, 2);
    const char *zCom = db_column_text(&q, 3);
    const char *zAuthor = db_column_text(&q, 4);
    char *zPrefix = "";
    int nChild = db_column_int(&q, 5);
    int nParent = db_column_int(&q, 6);
    
    zDate = cgi_rfc822_datestamp(rss_datetime_to_time_t(zDate));
    
    if( nParent>1 && nChild>1 ){
      zPrefix = "*MERGE/FORK* ";
    }else if( nParent>1 ){
      zPrefix = "*MERGE* ";
    }else if( nChild>1 ){
      zPrefix = "*FORK* ";
    }

    @     <item>
    @       <title>%s(zPrefix)%s(zCom)</title>
    @       <link>%s(g.zBaseURL)/vinfo/%s(zId)</link>
    @       <description>%s(zPrefix)%s(zCom)</description>
    @       <pubDate>%s(zDate)</pubDate>
    @       <author>%s(zAuthor)</author>
    @       <guid>%s(g.zBaseURL)/vinfo/%s(zId)</guid>
    @     </item>
    nLine++;
  }

  db_finalize(&q);
  @   </channel>
  @ </rss>
}