4f1d14fb386d20b0cba7f4396d6e85594c68af21
[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($timestamp))"/>
70             </pubDate>
71             <description>
72                 <xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
73                 <p>
74                     <xsl:if test="./is_video/text() = 1">
75                         (Video) 
76                     </xsl:if>
77                     <xsl:value-of select="$item-content-caption"/>
78                 </p><br />
79                 <a href="{$item-permalink}"><img src="{$item-content-image}" /></a>
80                 <xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
81             </description>
82             <xsl:if test="$generateEnclosure = 1">
83                 <xsl:apply-templates select="./display_src"/>
84             </xsl:if>
85         </item>
86     </xsl:template>
87
88     <xsl:template match="/">
89         <xsl:variable name="channel-title" select="concat('Instagram / ', $screen-name)"/>
90         <xsl:variable name="channel-link" select="concat($BaseURL, //__path)"/>
91
92         <rss version="2.0">
93             <xsl:attribute name="xml:base"><xsl:value-of select="$BaseURL" /></xsl:attribute>
94             <channel>
95                 <generator>Tweeper</generator>
96                 <title>
97                     <xsl:value-of select="$channel-title"/>
98                 </title>
99                 <link>
100                     <xsl:value-of select="$channel-link"/>
101                 </link>
102                 <description>
103                     <xsl:value-of select="//user/biography"/>
104                 </description>
105                 <image>
106                     <title>
107                         <xsl:value-of select="$channel-title"/>
108                     </title>
109                     <link>
110                         <xsl:value-of select="$channel-link"/>
111                     </link>
112                     <url>
113                         <xsl:value-of select="//user/profile_pic_url"/>
114                     </url>
115                 </image>
116                 <xsl:apply-templates select="//media/nodes/XML_Serializer_Tag"/>
117             </channel>
118         </rss>
119     </xsl:template>
120 </xsl:stylesheet>