cc540cec690667eeeef9c06fb39ab07061a549ea
[tweeper.git] / rss_converter_instagram.com.xsl
1 <!--
2   Stylesheet to convert Instagram user timelines to RSS.
3
4   Copyright (C) 2015  Antonio Ospite <ao2@ao2.it>
5
6   This file is part of tweeper.
7
8   This program is free software: you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation, either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 -->
21 <xsl:stylesheet version="1.0"
22     xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
23     xmlns:php="http://php.net/xsl"
24     xsl:extension-element-prefixes="php"
25     exclude-result-prefixes="php">
26
27     <xsl:param name="generateEnclosure"/>
28
29     <xsl:output method="xml" indent="yes"/>
30
31     <xsl:variable name="BaseURL">
32         <xsl:text>https://instagram.com</xsl:text>
33     </xsl:variable>
34
35     <xsl:template match="display_src">
36         <xsl:value-of disable-output-escaping="yes" select="php:function('Tweeper::generate_enclosure', string(text()))"/>
37     </xsl:template>
38
39     <xsl:variable name="screen-name" select="//ProfilePage/XML_Serializer_Tag/user/full_name"/>
40     <xsl:variable name="user-name" select="//ProfilePage/XML_Serializer_Tag/user/username"/>
41
42     <xsl:template match="//media/nodes/XML_Serializer_Tag">
43         <xsl:variable name="item-content-image" select="./display_src"/>
44         <xsl:variable name="item-content-caption" select="./caption"/>
45         <xsl:variable name="item-permalink" select="concat($BaseURL, '/p/', ./code, '/')"/>
46         <item>
47             <title>
48                 <xsl:variable name="title-length" select="140"/>
49                 <!-- ellipsize, inspired from http://stackoverflow.com/questions/13622338 -->
50                 <xsl:choose>
51                     <xsl:when test="string-length($item-content-caption) > $title-length">
52                         <xsl:variable name="truncated-length" select="$title-length - 3"/>
53                         <xsl:value-of select="normalize-space(substring($item-content-caption, 1, $truncated-length))"/>
54                         <xsl:text>...</xsl:text>
55                     </xsl:when>
56                     <xsl:otherwise>
57                         <xsl:value-of select="normalize-space($item-content-caption)"/>
58                     </xsl:otherwise>
59                 </xsl:choose>
60             </title>
61             <link>
62                 <xsl:value-of select="$item-permalink"/>
63             </link>
64             <guid>
65                 <xsl:value-of select="$item-permalink"/>
66             </guid>
67             <pubDate>
68                 <xsl:variable name="timestamp" select="./date"/>
69                 <xsl:value-of select="php:functionString('Tweeper::epoch_to_gmdate', number($timestamp))"/>
70             </pubDate>
71             <description>
72                 <xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
73                 <p><xsl:value-of select="$item-content-caption"/></p><br />
74                 <a href="{$item-permalink}"><img src="{$item-content-image}" /></a>
75                 <xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
76             </description>
77             <xsl:if test="$generateEnclosure = 1">
78                 <xsl:apply-templates select="./display_src"/>
79             </xsl:if>
80         </item>
81     </xsl:template>
82
83     <xsl:template match="/">
84         <xsl:variable name="channel-title" select="concat('Instagram / ', $screen-name)"/>
85         <xsl:variable name="channel-link" select="concat($BaseURL, //__path)"/>
86
87         <rss version="2.0">
88             <xsl:attribute name="xml:base"><xsl:value-of select="$BaseURL" /></xsl:attribute>
89             <channel>
90                 <generator>Tweeper</generator>
91                 <title>
92                     <xsl:value-of select="$channel-title"/>
93                 </title>
94                 <link>
95                     <xsl:value-of select="$channel-link"/>
96                 </link>
97                 <description>
98                     <xsl:value-of select="//user/biography"/>
99                 </description>
100                 <image>
101                     <title>
102                         <xsl:value-of select="$channel-title"/>
103                     </title>
104                     <link>
105                         <xsl:value-of select="$channel-link"/>
106                     </link>
107                     <url>
108                         <xsl:value-of select="//user/profile_pic_url"/>
109                     </url>
110                 </image>
111                 <xsl:apply-templates select="//media/nodes/XML_Serializer_Tag"/>
112             </channel>
113         </rss>
114     </xsl:template>
115 </xsl:stylesheet>