Add support for converting Instagram user timelines to RSS

diff --git a/rss_converter_instagram.com.xsl b/rss_converter_instagram.com.xsl
new file mode 100644 (file)
index 0000000..f42ca8b
--- /dev/null
+++ b/rss_converter_instagram.com.xsl
@@ -0,0 +1,104 @@
+<!--
+  Stylesheet to convert Instagram user timelines to RSS.
+
+  Copyright (C) 2015  Antonio Ospite <ao2@ao2.it>
+
+  This file is part of tweeper.
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  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 program.  If not, see <http://www.gnu.org/licenses/>.
+-->
+<xsl:stylesheet version="1.0"
+    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:php="http://php.net/xsl"
+    xsl:extension-element-prefixes="php"
+    exclude-result-prefixes="php">
+
+    <xsl:param name="generateEnclosure"/>
+
+    <xsl:output method="xml" indent="yes"/>
+
+    <xsl:variable name="BaseURL">
+        <xsl:text>https://instagram.com</xsl:text>
+    </xsl:variable>
+
+    <xsl:template match="images">
+        <xsl:value-of disable-output-escaping="yes" select="php:function('Tweeper::generate_enclosure', string(./standard_resolution/url))"/>
+    </xsl:template>
+
+    <xsl:variable name="screen-name" select="//UserProfile/XML_Serializer_Tag/user/full_name"/>
+    <xsl:variable name="user-name" select="//UserProfile/XML_Serializer_Tag/user/username"/>
+
+    <xsl:template match="//userMedia/XML_Serializer_Tag">
+        <xsl:variable name="item-content-title" select="./caption/text"/>
+        <xsl:variable name="item-content-src" select="./images/standard_resolution/url"/>
+        <xsl:variable name="item-permalink" select="./link"/>
+        <item>
+            <title>
+                <xsl:value-of select="concat($user-name, ': ', $item-content-title)"/>
+            </title>
+            <link>
+                <xsl:value-of select="$item-permalink"/>
+            </link>
+            <guid>
+                <xsl:value-of select="$item-permalink"/>
+            </guid>
+            <pubDate>
+                <xsl:variable name="timestamp" select="./created_time"/>
+                <xsl:value-of select="php:functionString('Tweeper::epoch_to_gmdate', number($timestamp))"/>
+            </pubDate>
+            <description>
+                <xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
+                <p><xsl:value-of select="$item-content-title"/></p><br />
+                <img src="{$item-content-src}" title="{$item-content-title}" />
+                <xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
+            </description>
+            <xsl:if test="$generateEnclosure = 1">
+                <xsl:apply-templates select="./images"/>
+            </xsl:if>
+        </item>
+    </xsl:template>
+
+    <xsl:template match="/">
+        <xsl:variable name="channel-title" select="concat('Instagram / ', $screen-name)"/>
+        <xsl:variable name="channel-link" select="concat($BaseURL, //user/__path)"/>
+
+        <rss version="2.0">
+            <xsl:attribute name="xml:base"><xsl:value-of select="$BaseURL" /></xsl:attribute>
+            <channel>
+                <generator>Tweeper</generator>
+                <title>
+                    <xsl:value-of select="$channel-title"/>
+                </title>
+                <link>
+                    <xsl:value-of select="$channel-link"/>
+                </link>
+                <description>
+                    <xsl:value-of select="//user/bio"/>
+                </description>
+                <image>
+                    <title>
+                        <xsl:value-of select="$channel-title"/>
+                    </title>
+                    <link>
+                        <xsl:value-of select="$channel-link"/>
+                    </link>
+                    <url>
+                        <xsl:value-of select="//user/profile_picture"/>
+                    </url>
+                </image>
+                <xsl:apply-templates select="//userMedia/XML_Serializer_Tag"/>
+            </channel>
+        </rss>
+    </xsl:template>
+</xsl:stylesheet>

diff --git a/tweeper.php b/tweeper.php
index 9f09936..ed1e1c7 100644 (file)
--- a/tweeper.php
+++ b/tweeper.php
@@ -201,6 +201,10 @@ class Tweeper {
     return $serializer->getSerializedData();
   }
 
+  private function get_xml_instagram_com($html) {
+    return $this->json_to_xml($html, '/window._sharedData = (.*);/', 'instagram');
+  }
+
   private function html_to_xml($html, $host) {
     $xmlDoc = new DOMDocument();