From 25580d3195785e6d7f821c5be3804cfc8e0c2f95 Mon Sep 17 00:00:00 2001
From: vv01f <vv01f@users.noreply.github.com>
Date: Wed, 12 Jun 2019 23:48:42 +0200
Subject: [PATCH] feature: limitenclosure option

---
 rss.xsl | 173 +++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 135 insertions(+), 38 deletions(-)

diff --git a/rss.xsl b/rss.xsl
index ad081e1..e1d2907 100644
--- a/rss.xsl
+++ b/rss.xsl
@@ -1,19 +1,28 @@
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" encoding="UTF-8" version="1.0">
+<!--
+xmlns:exsltstr="http://exslt.org/strings"
+-->
 <xsl:output omit-xml-declaration="yes"/>
 
 	<xsl:template match="/schleudern">
 <!--DOCTYPE rss-->
-<!--
-
-
-</rss> 
--->
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
 
 <channel>
+	<xsl:variable name="limitenclosures">0</xsl:variable><!-- 0:no limit, 1:limit is one  -->
+	<xsl:variable name="protocol">https://</xsl:variable>
+	<xsl:variable name="baseurl">ds.ccc.de</xsl:variable>
+	<xsl:variable name="feedfile">/ds-feed.xml</xsl:variable>
+	<xsl:element name="atom:link">
+		<xsl:attribute name="rel">self</xsl:attribute>
+		<xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,$feedfile)"/></xsl:attribute>
+		<xsl:attribute name="type">application/rss+xml</xsl:attribute>
+	</xsl:element>
+<!--
 <atom:link href="https://ds.ccc.de/ds-feed.xml" rel="self" type="application/rss+xml" />
+-->
 <title>Datenschleuder</title>
-<link>https://ds.ccc.de</link>
+<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element><!-- <link>https://ds.ccc.de</link> -->
 <description>Das wissenschaftliche Fachblatt für Datenreisende; ein Organ des Chaos Computer Club.</description>
 <language>de</language>
 <!--copyright></copyright-->
@@ -21,9 +30,9 @@
 <!--lastBuildDate></lastBuildDate-->
 <ttl>65535</ttl>
 <image>
-	<url>https://ds.ccc.de/i/ds_headline.gif</url>
+	<xsl:element name="url"><xsl:value-of select="concat($protocol,$baseurl,'/i/ds_headline.gif')"/></xsl:element><!--	<url>https://ds.ccc.de</url> -->
 	<title>Datenschleuder</title>
-	<link>https://ds.ccc.de</link>
+	<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element>
 </image>
 
 <!--
@@ -40,45 +49,133 @@
 -->
 
 	<xsl:for-each select="schleuder">
-		<xsl:variable name="type">
-			<xsl:choose>
-				<xsl:when test="substring(link, string-length(link) - 3) = 'html'">html</xsl:when>
-				<xsl:when test="substring(link, string-length(link) - 2) = 'pdf'">pdf</xsl:when>
-				<xsl:otherwise>unknown</xsl:otherwise>
-			</xsl:choose>
-		</xsl:variable>
+<!--
+<xsl:for-each select="catalog/cd">
+-->
 		<xsl:element name="item">
 			<!-- we do not have most optional elements -->
-			<xsl:choose>
-				<xsl:when test="$type = 'pdf'">
-					<xsl:element name="guid">
-						<xsl:attribute name="isPermaLink">true</xsl:attribute>
-						<xsl:value-of select="concat('https://ds.ccc.de',link)"/>
-					</xsl:element>
-					<xsl:element name="enclosure">
-						<xsl:attribute name="url"><xsl:value-of select="concat('https://ds.ccc.de',link)"/></xsl:attribute>
-						<xsl:attribute name="length"><xsl:value-of select="filesize"/></xsl:attribute>
-						<xsl:attribute name="type">application/pdf</xsl:attribute>
-					</xsl:element>
-				</xsl:when>
-				<xsl:otherwise>
-					<xsl:element name="guid">
-						<xsl:attribute name="isPermaLink">false</xsl:attribute>
-						<xsl:value-of select="concat('ds-',@id)"/>
-					</xsl:element>
-				</xsl:otherwise>
-			</xsl:choose>
 			<xsl:element name="title"><xsl:value-of select="concat('Datenschleuder #',@id)"/></xsl:element>
-			<xsl:element name="link"><xsl:value-of select="concat('https://ds.ccc.de',link)"/></xsl:element>
+
 			<xsl:element name="description">
-				<xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
-				<xsl:value-of select="concat('Ausgabe #',@id)"/>
-				<xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
+				<xsl:text disable-output-escaping="yes">&lt;![CDATA[ </xsl:text>
+				<xsl:value-of select="concat('Ausgabe #',@id,' ')"/>
+				
+				<xsl:if test="string-length(preface) &gt; 0">
+					<xsl:element name="a"><xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,preface)"/></xsl:attribute>Geleitwort</xsl:element>
+				</xsl:if>
+
+				<xsl:if test="string-length(image) &gt; 0">
+					<xsl:text disable-output-escaping="yes"> </xsl:text>
+					<xsl:element name="img"><xsl:attribute name="src">
+						<xsl:value-of select="concat($protocol,$baseurl,'/',image)"/></xsl:attribute>
+					</xsl:element>
+				</xsl:if>
+
+				<xsl:for-each select="link">	
+					<xsl:if test="((position() &gt; 1) and ($limitenclosures = 1))">
+						<xsl:text disable-output-escaping="yes"> </xsl:text>
+						<xsl:element name="a"><xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,.)"/></xsl:attribute><xsl:value-of select="concat('Anhang ',position())"/></xsl:element>
+					</xsl:if>
+				</xsl:for-each>
+
+				<xsl:text disable-output-escaping="yes"> ]]&gt;</xsl:text>				
 			</xsl:element>
+
 			<xsl:choose>
 				<xsl:when test="not(date)"></xsl:when>
 				<xsl:otherwise><xsl:element name="pubDate"><xsl:value-of select="date"/></xsl:element></xsl:otherwise>
 			</xsl:choose>
+
+			<xsl:variable name="id">
+				<xsl:value-of select="@id"/>
+			</xsl:variable>
+
+			<xsl:for-each select="link">
+
+				<xsl:variable name="position">
+					<xsl:value-of select="position()"/>
+				</xsl:variable> 
+
+				<xsl:variable name="href">
+					<xsl:value-of select="concat($protocol,$baseurl,.)"/>
+				</xsl:variable>
+
+				<xsl:variable name="filesize">
+					<xsl:choose>
+						<xsl:when test="string-length(@filesize) &gt; 0">
+							<xsl:value-of select="@filesize"/>
+						</xsl:when>
+						<xsl:otherwise>
+							<xsl:value-of select="../filesize"/>
+						</xsl:otherwise>
+					</xsl:choose>
+				</xsl:variable> 
+
+				<xsl:variable name="type">
+					<xsl:choose>
+						<xsl:when test="substring($href, string-length($href) - 2) = 'pdf'">pdf</xsl:when>
+						<xsl:when test="substring($href, string-length($href) - 3) = 'html'">html</xsl:when>
+						<xsl:when test="substring($href, string-length($href) - 3) = 'epub'">epub</xsl:when>
+						<xsl:otherwise>unknown</xsl:otherwise>
+					</xsl:choose>
+				</xsl:variable>
+
+				<xsl:if test="$position = 1">
+					<xsl:if test="$type != 'html'">
+						<xsl:element name="guid">
+							<xsl:attribute name="isPermaLink">true</xsl:attribute>
+							<xsl:value-of select="$href"/>
+						</xsl:element> 
+					</xsl:if>
+					<xsl:if test="$type = 'html'">
+						<xsl:element name="guid">
+							<xsl:attribute name="isPermaLink">true</xsl:attribute>
+							<xsl:value-of select="concat('https://www.offiziere.ch/trust-us/ds/',substring($id, 0, 3))"/>
+						</xsl:element>
+					</xsl:if>
+					<xsl:element name="link">
+						<xsl:value-of select="$href"/>
+					</xsl:element> 
+				</xsl:if>
+
+				<xsl:if test="((($position &gt; 1) and ($limitenclosures = 0)) or ($position = 1))">
+					<xsl:choose>
+						<xsl:when test="$type = 'pdf'">
+
+							<xsl:element name="enclosure">
+								<xsl:attribute name="url"><xsl:value-of select="$href"/></xsl:attribute>
+								<xsl:attribute name="length"><xsl:value-of select="$filesize"/></xsl:attribute>
+								<xsl:attribute name="type">application/pdf</xsl:attribute>
+							</xsl:element> 
+
+						</xsl:when>
+						<xsl:when test="$type = 'epub'">
+
+							<xsl:element name="enclosure">
+								<xsl:attribute name="url"><xsl:value-of select="$href"/></xsl:attribute>
+								<xsl:attribute name="length"><xsl:value-of select="$filesize"/></xsl:attribute>
+								<xsl:attribute name="type">application/epub+zip</xsl:attribute>
+							</xsl:element>
+
+						</xsl:when>
+	<!--
+						<xsl:otherwise>
+						</xsl:otherwise>
+	-->
+					</xsl:choose>
+				</xsl:if>
+
+			</xsl:for-each>
+
+			<xsl:if test="count(link) = 0">
+					<xsl:element name="guid">
+						<xsl:attribute name="isPermaLink">true</xsl:attribute>
+<!--
+						<xsl:value-of select="concat($protocol,$baseurl,'/#',exsltstr:encode-uri(@id, 'true', 'UTF-8'))"/>
+-->
+						<xsl:value-of select="concat($protocol,$baseurl,'/#',@id)"/>
+					</xsl:element> 
+			</xsl:if>
 		</xsl:element>
 	</xsl:for-each>