From e6b47f13c0413ddef17f09e7d1693c66407a4840 Mon Sep 17 00:00:00 2001
From: Valentin Popov <info@valentineus.link>
Date: Sat, 15 Sep 2018 18:38:06 +0400
Subject: [PATCH] Adding a protocol 'Open Graph'

Signed-off-by: Valentin Popov <info@valentineus.link>
---
 _includes/head.html      |  5 ++++-
 _includes/opengraph.html | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 _includes/opengraph.html

diff --git a/_includes/head.html b/_includes/head.html
index cd01190..47a4da9 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -12,6 +12,9 @@
           content="{{ tag.content | strip_newlines | strip_html | strip | normalize_whitespace | xml_escape }}" />
   {% endfor %}
 
+  <!-- Open Graph -->
+  {% include opengraph.html %}
+
   <!-- Title / Description -->
   <meta name="application-name" content="{{ page.title | default: site.title | strip_newlines | strip_html | strip | normalize_whitespace | smartify | xml_escape }}" />
   <meta name="description" content="{{ page.description | default: site.description | strip_newlines | strip_html | strip | normalize_whitespace | smartify | truncate: 100 | xml_escape }}" />
@@ -31,4 +34,4 @@
   <!--[if lte IE 9]>
     <script type="text/javascript" src="{{ '/assets/javascript/html5shiv-3.7.3.min.js' | relative_url | uri_escape }}"></script>
   <![endif]-->
-</head>
+</head>
\ No newline at end of file
diff --git a/_includes/opengraph.html b/_includes/opengraph.html
new file mode 100644
index 0000000..ae5a731
--- /dev/null
+++ b/_includes/opengraph.html
@@ -0,0 +1,14 @@
+<meta property="og:title"
+      content="{{ page.title | default: site.title | strip_newlines | strip_html | strip | normalize_whitespace | smartify | xml_escape }}" />
+
+<meta property="og:description"
+      content="{{ page.description | default: site.description | strip_newlines | strip_html | strip | normalize_whitespace | smartify | truncate: 100 | xml_escape }}" />
+
+<meta property="og:type"
+      content="{{ page.layout | replace: 'post', 'article' | replace: 'page', 'website' | default: 'website' }}" />
+
+<meta property="og:image"
+      content="{{ page.image | absolute_url | uri_escape }}" />
+
+<meta property="og:url"
+      content="{{ page.url | absolute_url | uri_escape }}" />
\ No newline at end of file