From 3994c8fe2264d94d056a6dc398d409b863e333b6 Mon Sep 17 00:00:00 2001
From: Murray Stokely <murray@FreeBSD.org>
Date: Wed, 16 Jan 2008 07:46:21 +0000
Subject: [PATCH] Add RSS 2.0 feed of upcoming FreeBSD events to compliment the
 ics calendar file also made available from the events.xml data.

PR:	www/113112
---
 en/events/Makefile |   4 +-
 en/events/rss.xsl  | 147 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 150 insertions(+), 1 deletion(-)
 create mode 100644 en/events/rss.xsl

diff --git a/en/events/Makefile b/en/events/Makefile
index b103e77259..3dcae29c4f 100644
--- a/en/events/Makefile
+++ b/en/events/Makefile
@@ -1,4 +1,4 @@
-# $FreeBSD: www/en/events/Makefile,v 1.12 2006/08/19 21:20:34 hrs Exp $
+# $FreeBSD: www/en/events/Makefile,v 1.13 2007/09/18 15:23:05 simon Exp $
 
 .if exists(../Makefile.conf)
 .include "../Makefile.conf"
@@ -19,4 +19,6 @@ DEPENDSET.events=	events
 XMLDOCS+=		events_ics:${XSL_EVENTS_ICS}:${XML_EVENTS_EVENTS}:events.ics
 DEPENDSET.events_ics=	events
 
+XMLDOCS+=		events_rss:rss.xsl:${XML_EVENTS_EVENTS}:rss.xml
+
 .include "${WEB_PREFIX}/share/mk/web.site.mk"
diff --git a/en/events/rss.xsl b/en/events/rss.xsl
new file mode 100644
index 0000000000..58dca1a32e
--- /dev/null
+++ b/en/events/rss.xsl
@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!DOCTYPE xsl:stylesheet PUBLIC "-//FreeBSD//DTD FreeBSD XSLT 1.0 DTD Fragment//EN"
+				"http://www.FreeBSD.org/XML/www/share/sgml/xslt10-freebsd.dtd" [
+<!ENTITY title "FreeBSD Events">
+<!ENTITY email "freebsd-www">
+<!ENTITY % navinclude.about "INCLUDE">
+]>
+
+<!-- $FreeBSD$ -->
+
+<!-- Copyright (c) 2008 Murray Stokely <murray@FreeBSD.org>
+     Copyright (c) 2003 Simon L. Nielsen <simon@FreeBSD.org>
+
+     All rights reserved.
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions
+     are met:
+     1. Redistributions of source code must retain the above copyright
+	notice, this list of conditions and the following disclaimer.
+     2. Redistributions in binary form must reproduce the above copyright
+	notice, this list of conditions and the following disclaimer in the
+	documentation and/or other materials provided with the distribution.
+
+     THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+     ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+     FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+     OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+     OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+     SUCH DAMAGE.
+-->
+
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
+  xmlns:cvs="http://www.FreeBSD.org/XML/CVS"
+  xmlns:date="http://exslt.org/dates-and-times"
+  extension-element-prefixes="date"
+  exclude-result-prefixes="cvs">
+
+  <xsl:import href="http://www.FreeBSD.org/XML/www/lang/share/sgml/libcommon.xsl"/>
+
+  <xsl:variable name="date">
+    <xsl:value-of select="//cvs:keyword[@name='freebsd']"/>
+  </xsl:variable>
+
+  <xsl:output method="xml" indent="yes"/>
+
+  <xsl:key name="event-by-month" match="event"
+    use="concat(startdate/year, format-number(startdate/month, '00'))"/>
+
+  <!-- Template: events -->
+  <xsl:template match="events">
+    <xsl:variable name="title">Upcoming FreeBSD Events</xsl:variable>
+    <xsl:variable name="link">http://www.FreeBSD.org/events/</xsl:variable>
+
+    <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+      <channel>
+        <title><xsl:value-of select="$title" /></title>
+        <link><xsl:value-of select="$link" /></link>
+        <description>RSS feed of upcoming FreeBSD-related conferences, summits, courses, and other relevant events.</description>
+        <language>en-us</language>
+        <webMaster>freebsd-www@FreeBSD.org (FreeBSD Web Team)</webMaster>
+        <managingEditor>freebsd-www@FreeBSD.org (FreeBSD Web Team)</managingEditor>
+        <docs>http://blogs.law.harvard.edu/tech/rss</docs>
+        <ttl>120</ttl>
+        <image>
+          <url>http://www.FreeBSD.org/logo/logo-full.png</url>
+          <title><xsl:value-of select="$title" /></title>
+          <link><xsl:value-of select="$link" /></link>
+        </image>
+        <atom:link rel="self" type="application/rss+xml">
+          <xsl:attribute name="href">
+            <xsl:value-of select="$link" /><xsl:text>rss.xml</xsl:text>
+          </xsl:attribute>
+        </atom:link>
+
+	<xsl:for-each select="event[generate-id() =
+          generate-id(key('event-by-month',
+	    concat(startdate/year, format-number(startdate/month, '00')))[1])
+	  and ((number(enddate/year) &gt; number($curdate.year)) or
+	    (number(enddate/year) = number($curdate.year) and
+	     number(enddate/month) &gt; number($curdate.month)) or
+	    (number(enddate/year) = number($curdate.year) and
+	     number(enddate/month) = number($curdate.month) and
+	     enddate/day &gt;= $curdate.day))]">
+
+	  <xsl:sort select="startdate/year" order="ascending"/>
+	  <xsl:sort select="format-number(startdate/month, '00')" order="ascending"/>
+	  <xsl:sort select="format-number(startdate/day, '00')" order="ascending"/>
+
+          <xsl:variable name="guid"><xsl:value-of select="url"/></xsl:variable>
+
+          <item>
+            <title><xsl:value-of select="name"/></title>
+            <description>
+              <xsl:value-of select="name"/>
+              <xsl:if test="url">
+                <xsl:text> (</xsl:text>
+                <xsl:value-of select="url"/>
+                <xsl:text>)</xsl:text>
+              </xsl:if>
+
+              <xsl:if test="location/site!=''">
+                <xsl:text>, </xsl:text>
+                <xsl:value-of select="location/site"/>
+              </xsl:if>
+              <xsl:if test="location/city!=''">
+                <xsl:text>, </xsl:text>
+                <xsl:value-of select="location/city"/>
+              </xsl:if>
+              <xsl:if test="location/state!=''">
+                <xsl:text>, </xsl:text>
+                <xsl:value-of select="location/state"/>
+              </xsl:if>
+              <xsl:if test="location/country!=''">
+                <xsl:text>, </xsl:text>
+                <xsl:value-of select="location/country"/>
+              </xsl:if>
+
+              <xsl:text> </xsl:text>
+
+              <xsl:call-template name="gen-date-interval">
+                <xsl:with-param name="startdate" select="startdate" />
+                <xsl:with-param name="enddate" select="enddate" />
+              </xsl:call-template>
+
+              <xsl:text>. </xsl:text>
+
+              <xsl:apply-templates select="description"/>
+
+            </description>
+
+            <link><xsl:value-of select="$guid" /></link>
+            <guid><xsl:value-of select="$guid" /></guid>
+          </item>
+        </xsl:for-each>
+
+      </channel>
+    </rss>
+
+  </xsl:template>
+
+</xsl:stylesheet>