[www] 02/02: Add opengraph to header, most of it is TODO

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nikita pushed a commit to branch master
in repository www.

commit 5645dd991b7038f9b02f2e7fcc6d10bc7dee6259
Author: nikita <address@hidden>
AuthorDate: Fri May 1 19:00:24 2020 +0200

    Add opengraph to header, most of it is TODO
---
 common/header.j2.inc | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/common/header.j2.inc b/common/header.j2.inc
index 2f80985..9d797fe 100644
--- a/common/header.j2.inc
+++ b/common/header.j2.inc
@@ -56,3 +56,21 @@
     <![endif]-->
 
     <link rel="alternate" type="application/rss+xml" title="GNUnet.org rss" 
href="{{ url_localized('news/rss.xml') }}" />
+
+    <!-- opengraph -->
+    <!--
+      We do not actively use Twitter or endorse it, but people might
+      use our posts there or other websites might conform to the
+      twitter namespace of the opengraph. More opengraph must be
+      implemented in the sitecode.
+      -->
+    <meta name="twitter:card" content="article" />
+    <meta name="twitter:site" content="@gnunet" />
+    <meta name="twitter:creator" content="@gnunet" />
+    {#
+    TODO: Implement the necessary functions.
+    <meta property="og:url" content="{{ url_localized(url) }}" />
+    <meta property="og:title" content="{{ title }}" />
+    <meta property="og:description" content="{{ summary }}" />
+    <meta property="og:image" content="" />
+    #}

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