Allow Facebook bot to make previews of articles++

wp-content/plugins/opengraph/opengraph.php

@@ -0,0 +1,364 @@
+<?php
+/*
+ Plugin Name: Open Graph
+ Plugin URI: http://wordpress.org/plugins/opengraph
+ Description: Adds Open Graph metadata to your pages
+ Author: Will Norris
+ Author URI: http://willnorris.com/
+ Version: 1.6
+ License: Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html)
+ Text Domain: opengraph
+ */
+
+
+// If you have the opengraph plugin running alongside jetpack, we assume you'd
+// rather use our opengraph support, so disable jetpack's opengraph functionality.
+add_filter('jetpack_enable_opengraph', '__return_false');
+add_filter('jetpack_enable_open_graph', '__return_false');
+
+
+/**
+ * Add Open Graph XML prefix to <html> element.
+ *
+ * @uses apply_filters calls 'opengraph_prefixes' filter on RDFa prefix array
+ */
+function opengraph_add_prefix( $output ) {
+  $prefixes = array(
+    'og' => 'http://ogp.me/ns#'
+  );
+  $prefixes = apply_filters('opengraph_prefixes', $prefixes);
+
+  $prefix_str = '';
+  foreach ( $prefixes as $k => $v ) {
+    $prefix_str .= $k . ': ' . $v . ' ';
+  }
+  $prefix_str = trim($prefix_str);
+
+  if (preg_match('/(prefix\s*=\s*[\"|\'])/i', $output)) {
+    $output = preg_replace('/(prefix\s*=\s*[\"|\'])/i', '${1}' . $prefix_str, $output);
+  } else {
+    $output .= ' prefix="' . $prefix_str . '"';
+  }
+  return $output;
+}
+add_filter('language_attributes', 'opengraph_add_prefix');
+
+
+/**
+ * Add additional prefix namespaces that are supported by the opengraph plugin.
+ */
+function opengraph_additional_prefixes( $prefixes ) {
+  if ( is_author() ) {
+    $prefixes['profile'] = 'http://ogp.me/ns/profile#';
+  }
+  if ( is_singular() ) {
+    $prefixes['article'] = 'http://ogp.me/ns/article#';
+  }
+  return $prefixes;
+}
+
+
+/**
+ * Get the Open Graph metadata for the current page.
+ *
+ * @uses apply_filters() Calls 'opengraph_{$name}' for each property name
+ * @uses apply_filters() Calls 'twitter_{$name}' for each property name
+ * @uses apply_filters() Calls 'opengraph_metadata' before returning metadata array
+ */
+function opengraph_metadata() {
+  $metadata = array();
+
+   // defualt properties defined at http://ogp.me/
+  $properties = array(
+    // required
+    'title', 'type', 'image', 'url',
+
+    // optional
+    'audio', 'description', 'determiner', 'locale', 'site_name', 'video',
+  );
+
+  foreach ( $properties as $property ) {
+    $filter = 'opengraph_' . $property;
+    $metadata["og:$property"] = apply_filters($filter, '');
+  }
+
+  $twitter_properties = array('card');
+
+  foreach ( $twitter_properties as $property ) {
+    $filter = 'twitter_' . $property;
+    $metadata["twitter:$property"] = apply_filters($filter, '');
+  }
+
+  return apply_filters('opengraph_metadata', $metadata);
+}
+
+
+/**
+ * Register filters for default Open Graph metadata.
+ */
+function opengraph_default_metadata() {
+  // core metadata attributes
+  add_filter('opengraph_title', 'opengraph_default_title', 5);
+  add_filter('opengraph_type', 'opengraph_default_type', 5);
+  add_filter('opengraph_image', 'opengraph_default_image', 5);
+  add_filter('opengraph_url', 'opengraph_default_url', 5);
+
+  add_filter('opengraph_description', 'opengraph_default_description', 5);
+  add_filter('opengraph_locale', 'opengraph_default_locale', 5);
+  add_filter('opengraph_site_name', 'opengraph_default_sitename', 5);
+
+  // additional prefixes
+  add_filter('opengraph_prefixes', 'opengraph_additional_prefixes');
+
+  // additional profile metadata
+  add_filter('opengraph_metadata', 'opengraph_profile_metadata');
+
+  // additional article metadata
+  add_filter('opengraph_metadata', 'opengraph_article_metadata');
+
+  // twitter card metadata
+  add_filter('twitter_card', 'twitter_default_card', 5);
+}
+add_filter('wp', 'opengraph_default_metadata');
+
+
+/**
+ * Default title property, using the page title.
+ */
+function opengraph_default_title( $title ) {
+  if ( empty($title) ) {
+    if ( is_singular() ) {
+      $title = get_the_title( get_queried_object_id() );
+    } else if ( is_author() ) {
+      $author = get_queried_object();
+      $title = $author->display_name;
+    } else if ( is_category() && single_cat_title( '', false ) ) {
+      $title = single_cat_title( '', false );
+    } else if ( is_tag() && single_tag_title( '', false ) ) {
+      $title = single_tag_title( '', false );
+    } else if ( is_archive() && get_post_format()) {
+      $title = get_post_format_string( get_post_format() );
+    } else if ( is_archive() && function_exists ("get_the_archive_title") && get_the_archive_title() ) { // new in version 4.1 to get all other archive titles
+      $title = get_the_archive_title();
+    }
+  }
+  return $title;
+}
+
+
+/**
+ * Default type property.
+ */
+function opengraph_default_type( $type ) {
+  if ( empty($type) ) {
+    if ( is_singular( array('post', 'page') ) ) {
+      $type = 'article';
+    } else if ( is_author() ) {
+      $type = 'profile';
+    } else {
+      $type = 'website';
+    }
+  }
+  return $type;
+}
+
+
+/**
+ * Default image property, using the post-thumbnail and any attached images.
+ */
+function opengraph_default_image( $image ) {
+  if ( empty($image) && is_singular() ) {
+    $id = get_queried_object_id();
+    $image_ids = array();
+
+    // As of July 2014, Facebook seems to only let you select from the first 3 images
+    $max_images = apply_filters('opengraph_max_images', 3);
+
+    // list post thumbnail first if this post has one
+    if ( function_exists('has_post_thumbnail') ) {
+      if ( is_singular() && has_post_thumbnail($id) ) {
+        $image_ids[] = get_post_thumbnail_id($id);
+      }
+    }
+
+    // then list any image attachments
+    $attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit',
+      'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC',
+      'orderby' => 'menu_order ID') );
+    foreach ( $attachments as $attachment ) {
+      if ( !in_array($attachment->ID, $image_ids) ) {
+        $image_ids[] = $attachment->ID;
+        if (sizeof($image_ids) >= $max_images) {
+          break;
+        }
+      }
+    }
+
+    // get URLs for each image
+    $image = array();
+    foreach ( $image_ids as $id ) {
+      $thumbnail = wp_get_attachment_image_src( $id, 'medium');
+      if ($thumbnail) {
+        $image[] = $thumbnail[0];
+      }
+    }
+  }
+  return $image;
+}
+
+
+/**
+ * Default url property, using the permalink for the page.
+ */
+function opengraph_default_url( $url ) {
+  if ( empty($url) ) {
+    if ( is_singular() ) {
+      $url = get_permalink();
+    } else if ( is_author() ) {
+      $url = get_author_posts_url( get_queried_object_id() );
+    }
+  }
+  return $url;
+}
+
+
+/**
+ * Default site_name property, using the bloginfo name.
+ */
+function opengraph_default_sitename( $name ) {
+  if ( empty($name) ) {
+    $name = get_bloginfo('name');
+  }
+  return $name;
+}
+
+
+/**
+ * Default description property, using the excerpt or content for posts, or the
+ * bloginfo description.
+ */
+function opengraph_default_description( $description ) {
+  if ( empty($description) ) {
+    if ( is_singular() ) {
+      $post = get_queried_object();
+      if ( !empty($post->post_excerpt) ) {
+        $description = $post->post_excerpt;
+      } else {
+        $description = $post->post_content;
+      }
+    } else if ( is_author() ) {
+      $id = get_queried_object_id();
+      $description = get_user_meta($id, 'description', true);
+    } else if ( is_category() && category_description() ) {
+      $description = category_description();
+    } else if ( is_tag() && tag_description() ) {
+      $description = tag_description();
+    } else if ( is_archive() && function_exists("get_the_archive_description") && get_the_archive_description() ) { // new in version 4.1 to get all other archive descriptions
+      $description = get_the_archive_description();
+    } else {
+      $description = get_bloginfo('description');
+    }
+  }
+
+  // strip description to first 55 words.
+  $description = strip_tags(strip_shortcodes($description));
+  $description = __opengraph_trim_text($description);
+
+  return $description;
+}
+
+
+/**
+ * Default locale property, using the WordPress locale.
+ */
+function opengraph_default_locale( $locale ) {
+  if ( empty($locale) ) {
+    $locale = get_locale();
+  }
+  return $locale;
+}
+
+
+/**
+ * Default twitter-card type.
+ */
+function twitter_default_card( $card ) {
+  $post_type = apply_filters('opengraph_type', null);
+  if ( $post_type == 'article' ) {
+    return "summary";
+  }
+
+  return '';
+}
+
+
+/**
+ * Output Open Graph <meta> tags in the page header.
+ */
+function opengraph_meta_tags() {
+  $metadata = opengraph_metadata();
+  foreach ( $metadata as $key => $value ) {
+    if ( empty($key) || empty($value) ) {
+      continue;
+    }
+    $value = (array) $value;
+    foreach ( $value as $v ) {
+      printf('<meta property="%1$s" name="%1$s" content="%2$s" />' . "\n",
+        esc_attr($key), esc_attr($v));
+    }
+  }
+}
+add_action('wp_head', 'opengraph_meta_tags');
+
+
+/**
+ * Include profile metadata for author pages.
+ */
+function opengraph_profile_metadata( $metadata ) {
+  if ( is_author() ) {
+    $id = get_queried_object_id();
+    $metadata['profile:first_name'] = get_the_author_meta('first_name', $id);
+    $metadata['profile:last_name'] = get_the_author_meta('last_name', $id);
+    $metadata['profile:username'] = get_the_author_meta('nicename', $id);
+  }
+  return $metadata;
+}
+
+
+/**
+ * Include profile metadata for author pages.
+ *
+ * @link http://ogp.me/#type_article
+ */
+function opengraph_article_metadata( $metadata ) {
+  if ( is_singular() ) {
+    $post = get_queried_object();
+
+    $tags = wp_get_post_tags($post->ID);
+
+    // check if page/post has tags
+    if ( $tags ) {
+      foreach ( $tags as $tag ) {
+        $metadata['article:tag'][] = $tag->name;
+      }
+    }
+
+    $metadata['article:published_time'] = get_the_time( 'c', $post->ID );
+    $metadata['article:author:first_name'] = get_the_author_meta('first_name', $post->post_author);
+    $metadata['article:author:last_name'] = get_the_author_meta('last_name', $post->post_author);
+    $metadata['article:author:username'] = get_the_author_meta('nicename', $post->post_author);
+  }
+
+  return $metadata;
+}
+
+
+/**
+ * Helper function to trim text using the same default values for length and
+ * 'more' text as wp_trim_excerpt.
+ */
+function __opengraph_trim_text( $text ) {
+  $excerpt_length = apply_filters('excerpt_length', 55);
+  $excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');
+  return wp_trim_words($text, $excerpt_length, $excerpt_more);
+}

wp-content/plugins/opengraph/readme.txt

@@ -0,0 +1,126 @@
+=== Open Graph ===
+Contributors: willnorris, pfefferle
+Tags: social, opengraph, ogp, facebook
+Requires at least: 2.3
+Tested up to: 4.1
+Stable tag: 1.6
+License: Apache License, Version 2.0
+License URI: http://www.apache.org/licenses/LICENSE-2.0.html
+
+
+Adds Open Graph metadata to your posts and pages so that they look great when
+shared on sites like Facebook and Google+.
+
+== Description ==
+
+The [Open Graph protocol][] enables any web page to become a rich object in a
+social graph.  Most notably, this allows for these pages to be used with
+Facebook's [Like Button][] and [Graph API][] as well as within [Google+][]
+posts.
+
+The Open Graph plugin inserts the Open Graph metadata into WordPress posts and
+pages, and provides a simple extension mechansim for other plugins and themes
+to override this data, or to provide additional Open Graph data.
+
+This plugin does not directly add social plugins like the Facebook Like Button
+or the Google [+1 Button][] to your pages (though they're pretty simple to
+add).  It will however make your pages look great when shared using those kinds
+of tools.
+
+[Open Graph Protocol]: http://ogp.me/
+[Like Button]: https://developers.facebook.com/docs/reference/plugins/like
+[Graph API]: https://developers.facebook.com/docs/reference/api/
+[Google+]: http://www.google.com/+
+[+1 Button]: https://developers.google.com/+/plugins/+1button/
+
+
+== Frequently Asked Questions ==
+
+= How do I configure the Open Graph plugin? =
+
+You don't; there's nothing to configure and there is no admin page.  By
+default, it will use whatever standard WordPress data it can to populate the
+Open Graph data.  There are very simple yet powerful filters you can use to
+modify or extend the metadata returned by the plugin, described below.
+
+= How do I extend the Open Graph plugin? =
+
+There are two main ways to provide Open Graph metadata from your plugin or
+theme.  First, you can implement the filter for a specific property.  These
+filters are of the form `opengraph_{name}` where {name} is the unqualified Open
+Graph property name.  For example, if you have a plugin that defines a custom
+post type named "movie", you could override the Open Graph 'type' property for
+those posts using a function like:
+
+    function my_og_type( $type ) {
+        if ( get_post_type() == "movie" ) {
+            $type = "movie";
+        }
+        return $type;
+    }
+    add_filter( 'opengraph_type', 'my_og_type' );
+
+This will work for all of the core Open Graph properties.  However, if you want
+to add a custom property, such as 'fb:admin', then you would need to hook into
+the `opengraph_metadata` filter.  This filter is passed an associative array,
+whose keys are the qualified Open Graph property names.  For example:
+
+    function my_og_metadata( $metadata ) {
+        $metadata['fb:admin'] = '12345,67890';
+        return $metadata;
+    }
+    add_filter( 'opengraph_metadata', 'my_og_metadata' );
+
+Note that you may need to define the RDFa prefix for your properties.  Do this
+using the `opengraph_prefixes` filter.
+
+
+== Changelog ==
+
+Project maintined on github at
+[willnorris/wordpress-opengraph](https://github.com/willnorris/wordpress-opengraph).
+
+= version 1.6 (Dec 30, 2014) =
+ - implemented `get_the_archive_title` and `get_the_archive_description` (new in WordPress 4.1)
+ - basic twitter cards support (thanks to elroyjetson)
+ - replace `$post->post_title` with `get_the_title()` (see #[17][] for details)
+
+[17]: https://github.com/willnorris/wordpress-opengraph/issues/17
+
+= version 1.5.1 (Nov 13, 2012) =
+ - fix duplicate opengraph markup when used with jetpack plugin (for real)
+
+= version 1.5 (Nov 13, 2012) =
+ - include descriptions on tag and category pages
+ - include profile metadata on author pages
+ - fix bug with 404 pages include extra og:image values
+ - general code cleanup (including removal of dependency on global vars)
+ - fix duplicate opengraph markup when used with jetpack plugin
+
+= version 1.4 (Aug 24, 2012) =
+ - better default description
+ - include all images that are attached to a post, so that users can choose
+   which to use when sharing the page.  If the post has a post thumbnail, that
+   is still used as the primary image.
+
+= version 1.3 (May 21, 2012) =
+ - add 'opengraph_prefixes' filter for defining additional prefixes
+ - add new basic properties, and remove some old ones.  This is a breaking
+   change for anyone that was using the old properties, but they can always be
+   added using the 'opengraph_metadata' filter. (see [f476552][] for details)
+ - updates to many default values, particularly for individual posts and pages
+   (thanks pfefferle)
+ - add basic support for array values (see [d987eb7][])
+
+[f476552]: https://github.com/willnorris/wordpress-opengraph/commit/f47655202d59c0e5b5032b4b86764f7a87813640
+[d987eb7]: https://github.com/willnorris/wordpress-opengraph/commit/d987eb76e2da1431e5df3311fde3d9c2407b06f5
+
+= version 1.2 (Feb 21, 2012) =
+ - switch to newer RDFa prefix syntax rather than XML namespaces (props
+   pfefferle)
+
+= version 1.1 (Nov 7, 2011) =
+ - fix function undefined error when theme doesn't support post thumbnails
+
+= version 1.0 (Apr 24, 2010) =
+ - initial public release

wp-content/themes/aktiv2014/functions.php

@@ -171,8 +171,6 @@ add_filter( 'excerpt_more', 'neuf_excerpt_more' );
 
 /* Save user meta options */
 function neuf_save_user_meta() {
-    global $wpdb;
-
     $user_id = (int) $_POST['user_id'];
     $meta_key = $_POST['meta_key']; // TODO: sanitize
     $meta_value = $_POST['meta_value']; // TODO: sanitize
@@ -202,8 +200,6 @@ add_action( 'wp_ajax_neuf_save_user_meta', 'neuf_save_user_meta' );
 
 /* Save user meta options */
 function neuf_get_user_meta() {
-    global $wpdb;
-
     $user_id = (int) $_GET['user_id'];
     $meta_key = $_GET['meta_key']; // TODO: sanitize
     $single = (bool) $_GET['single'];
@@ -241,7 +237,7 @@ function get_feed_url() {
 
     if(is_user_logged_in()) {
         $user = wp_get_current_user();
-        $feedkey = get_usermeta($user->ID, 'feed_key');
+        $feedkey = get_user_meta($user->ID, 'feed_key', true);
         $feedurl .= "?feedkey=$feedkey";
     }
     return $feedurl;
@@ -307,4 +303,97 @@ add_action( 'customize_register', 'neuf_customize_register' );
 
 require_once('neuf_widgets.php');
 
+
+/* The following allows the Facebook bot and the login page to leak
+   the title, excerpt and image info to users that are not logged in.
+*/
+add_action( 'restrict_site_access_handling', 'my_restrict_site_access_handling' );
+
+function my_restrict_site_access_handling( $rsa_restrict_approach) {
+    global $wp;
+    $rsa_options = (array) get_option( 'rsa_options' );
+    if( $rsa_restrict_approach == 4 && !empty($rsa_options['page']) && ($page_id = get_post_field('ID', $rsa_options['page']))) {
+        $wp->query_vars_restricted = $wp->query_vars; // Backup for later
+    }
+}
+function get_restricted_post() {
+    global $wp;
+
+    if( $wp->query_vars_restricted == null ) {
+        return null;
+    }
+    $q = new WP_Query($wp->query_vars_restricted);
+    if (!$q->have_posts()) {
+        return null;
+    }
+
+    return $q->posts[0];
+}
+
+function restricted_title($title){
+    $post = get_restricted_post();
+    if($post == null) {
+        return $title;
+    }
+    return $post->post_title;
+}
+add_filter('wp_title', 'restricted_title');
+add_filter('opengraph_title', 'restricted_title');
+
+/* Mostly copied from opengraph plugin */
+function restricted_image($image){
+    $post = get_restricted_post();
+    if($post == null) {
+        return $image;
+    }
+
+    $id = $post->ID;
+    $image_ids = array();
+
+    // As of July 2014, Facebook seems to only let you select from the first 3 images
+    $max_images = 3;
+
+    // list post thumbnail first if this post has one
+    if ( has_post_thumbnail($id) ) {
+        $image_ids[] = get_post_thumbnail_id($id);
+    }
+
+    // then list any image attachments
+    $attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit',
+        'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC',
+        'orderby' => 'menu_order ID') );
+    foreach ( $attachments as $attachment ) {
+        if ( !in_array($attachment->ID, $image_ids) ) {
+            $image_ids[] = $attachment->ID;
+            if (sizeof($image_ids) >= $max_images) {
+                break;
+            }
+        }
+    }
+
+    // get URLs for each image
+    $image = array();
+    foreach ( $image_ids as $id ) {
+        $thumbnail = wp_get_attachment_image_src( $id, 'full');
+        if ($thumbnail) {
+            $image[] = $thumbnail[0];
+        }
+    }
+    return $image;
+}
+add_filter('opengraph_image', 'restricted_image');
+
+function restricted_url($url){
+    $post = get_restricted_post();
+    if($post == null) {
+        return $url;
+    }
+
+    if ( is_singular() ) {
+        $url = get_permalink($post->ID);
+    }
+    return $url;
+}
+add_filter('opengraph_url', 'restricted_url');
+
 ?>

wp-content/themes/aktiv2014/header.php

@@ -11,7 +11,6 @@
     <meta name="x-user-id" content="<?php echo $user->ID; ?>" />
 
     <meta name="x-siteurl" content="<?php echo get_option('siteurl'); ?>" />
-    <title><?php wp_title('|', true, true); ?></title>
     <link rel="icon" type="image/png" href="favicon.ico" />
     <link rel="alternate" type="application/rss+xml" href="<?php echo get_feed_url(); ?>" title="aktiv.neuf.no - Nyheter" />
 
@@ -19,8 +18,6 @@
     <link href='//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,700,800,600' rel='stylesheet' type='text/css'>
     <?php wp_head(); ?>
     <script src="<?php bloginfo( 'stylesheet_directory' ); ?>/dist/scripts/vendor.js"></script>
-    <script>jQuery.migrateMute = true;</script>
-    <script src="//code.jquery.com/jquery-migrate-1.2.1.js"></script>
 
     <script src="<?php bloginfo( 'stylesheet_directory' ); ?>/dist/scripts/main.js"></script>
 

wp-content/themes/aktiv2014/page-login.php

@@ -2,7 +2,8 @@
 /*
  * Template Name: Login
  */
-?>
+$restricted_post = get_restricted_post();
+    ?>
 
 <?php get_header(); ?>
 
@@ -10,11 +11,30 @@
 
 <div id="content">
     <div class="introduction">
-        <h3>Logg inn for å fortsette</h3>
-        <?php the_post(); the_content(); ?>
+        <?php if($restricted_post && $restricted_post->post_type == 'post'): ?>
+            <div class="restricted-post">
+                <div class="text-body">
+                    <div>
+                        <h3 class="entry-title"><a href="#"><?php echo $restricted_post->post_title; ?></a></h3>
+                        <div class="entry-meta byline"><span class="meta-prep meta-prep-author">av </span><span class="author vcard"><a href="<?php echo get_author_posts_url($restricted_post->post_author); ?>"><?php echo the_author_meta( 'display_name' , $restricted_post->post_author); ?></a></span>, <span class="entry-date"><?php echo get_the_time(get_option( 'date_format' ) ." ". get_option( 'time_format' ), $restricted_post->ID ); ?></span></div>
+                    </div>
+                    <?php echo get_the_post_thumbnail($restricted_post->ID, 'full'); ?>
+                    <?php echo wp_trim_words( $restricted_post->post_content ) ?>
+                </div>
+            </div>
+        <?php endif; ?>
+            <div class="text-body">
+                <?php if($restricted_post && $restricted_post->post_type == 'post'): ?>
+                    <h4>Logg inn for å lese resten</h4>
+                <?php else: ?>
+                    <h4>Logg inn for å fortsette</h4>
+                <?php endif; ?>
+                <?php the_post(); the_content(); ?>
+            </div>
     </div>
 
     <div class="login-form">
+        <h4>Logg inn</h4>
     <?php
     $args = array(
         'form_id' => 'loginform-custom',