/**
* Add Schema.org Microdata in the footer.
*
* Mainly used to embed microdata to front page, posts index page and archives.
*/
function amt_add_jsonld_schemaorg_metadata_head($post, $attachments, $embedded_media, $options)
{
if (apply_filters('amt_exclude_schemaorg_metadata', false)) {
return array();
}
$do_auto_schemaorg = $options["auto_schemaorg"] == "1" ? true : false;
if (!$do_auto_schemaorg) {
return array();
}
// Check if the microdata or the JSON-LD schema.org generator should be used.
if ($options["schemaorg_force_jsonld"] == "0") {
// Here we check for AMP page https://www.ampproject.org/
// For AMP pages, if the Schema.org microdata generator has been enabled,
// we enforce the JSON+LD form instead of microdata.
if ($do_auto_schemaorg && function_exists('is_amp_endpoint') && is_amp_endpoint()) {
// Do nothing and let it proceed with forced generation of JSON+LD Schema.org metadata.
} else {
return array();
}
}
$metadata_arr = array();
// Context
$metadata_arr['@context'] = 'http://schema.org';
// TODO: Check if this is_paged() check is needed. If removed, make sure that titles and descriptions are passed through multipage function.
if (is_paged()) {
//
// Currently we do not support adding Schema.org metadata on
// paged archives, if page number is >=2
//
// NOTE: This refers to an archive or the main page being split up over
// several pages, this does not refer to a Post or Page whose content
// has been divided into pages using the <!--nextpage--> QuickTag.
//
// Multipage content IS processed below.
//
return array();
}
// Custom content override
if (amt_is_custom($post, $options)) {
// Return metadata with:
// add_filter( 'amt_custom_metadata_jsonld_schemaorg', 'my_function', 10, 5 );
// Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />'
$metadata_arr = apply_filters('amt_custom_metadata_jsonld_schemaorg', $metadata_arr, $post, $options, $attachments, $embedded_media);
// Default fron tpage displaying the latest posts.
} elseif (amt_is_default_front_page()) {
// On the front page we are adding two top level entities, so we remove
// the existing context, as the entities need to be in an array and each
// array item needs its own context.
unset($metadata_arr['@context']);
// Organization
//
// NOTICE:
// Even if the front page has been set as the source of profile, this
// this does not work with the default front page with the latest posts.
// This is becuase this page does not have an author, which is essential
// for the generated metadata on a page that is supposed to be a profile.
// Therefore, an Organization object is always generated on the default
// front page and it is never treated as a profile page by Add-Meta-Tags.
//
$organization_arr = array();
// Context
$organization_arr['@context'] = 'http://schema.org';
// ID
$organization_arr['@id'] = amt_get_schemaorg_entity_id('organization');
$organization_arr = array_merge($organization_arr, amt_get_jsonld_schemaorg_publisher_array($options));
// mainEntityOfPage
$organization_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
// Get publisher/mainEntity metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
// WebSite
$website_arr = array();
// Context
$website_arr['@context'] = 'http://schema.org';
// ID
$website_arr['@id'] = amt_get_schemaorg_entity_id('website');
// Type
$website_arr['@type'] = 'WebSite';
// name
$website_arr['name'] = esc_attr(get_bloginfo('name'));
// headline - contains title information
$website_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
// alternateName (The WordPress tag line is used.)
// TODO: use tag line. Needs feedback!
// url
$website_arr['url'] = esc_url_raw(trailingslashit(get_bloginfo('url')));
// publisher
// $website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
// SearchAction
// Scope BEGIN: SearchAction: http://schema.org/SearchAction
// $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->';
// $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">';
$website_arr['potentialAction'] = array();
$website_arr['potentialAction']['@type'] = 'SearchAction';
// target
// Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
$website_arr['potentialAction']['target'] = array();
$website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
// urlTemplate
$website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}';
// Scope END: EntryPoint
// $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->';
// query-input
// Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
//$metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">';
$website_arr['potentialAction']['query-input'] = array();
$website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
// valueRequired
$website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
// valueName
$website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
// Scope END: PropertyValueSpecification
// $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->';
// Scope END: SearchAction
// $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->';
// Scope END: WebSite
// $metadata_arr[] = '</span> <!-- Scope END: WebSite -->';
$metadata_arr = array($organization_arr, $website_arr);
// Front page using a static page
} elseif (amt_is_static_front_page()) {
// On the front page we are adding two top level entities, so we remove
// the existing context, as the entities need to be in an array and each
// array item needs its own context.
unset($metadata_arr['@context']);
$main_entity_arr = array();
// Context
$main_entity_arr['@context'] = 'http://schema.org';
if ($options['author_profile_source'] == 'frontpage') {
// ID
$main_entity_arr['@id'] = amt_get_schemaorg_entity_id('person');
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
// $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
// Get author metatags
$main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_author_array($post->post_author, $options));
// mainEntityOfPage
$main_entity_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
// Scope END: Person
// $metadata_arr[] = '</span> <!-- Scope END: Person -->';
} else {
// ID
$main_entity_arr['@id'] = amt_get_schemaorg_entity_id('organization');
// Organization
$main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_publisher_array($options));
// mainEntityOfPage
$main_entity_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
// Get publisher/mainEntity metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
}
// WebSite
$website_arr = array();
// Context
$website_arr['@context'] = 'http://schema.org';
// ID
$website_arr['@id'] = amt_get_schemaorg_entity_id('website');
// Type
$website_arr['@type'] = 'WebSite';
// name
$website_arr['name'] = esc_attr(get_bloginfo('name'));
// headline - contains title information
$website_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
// alternateName (The WordPress tag line is used.)
// TODO: use tag line. Needs feedback!
// url
$website_arr['url'] = esc_url_raw(trailingslashit(get_bloginfo('url')));
// if ( $options['author_profile_source'] == 'frontpage' ) {
// author
//$website_arr['author'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('person') ) );
// } else {
// publisher
//$website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
// }
// SearchAction
// Scope BEGIN: SearchAction: http://schema.org/SearchAction
// $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->';
// $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">';
$website_arr['potentialAction'] = array();
$website_arr['potentialAction']['@type'] = 'SearchAction';
// target
// Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
$website_arr['potentialAction']['target'] = array();
$website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
// urlTemplate
$website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}';
// Scope END: EntryPoint
// $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->';
// query-input
// Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
//$metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">';
$website_arr['potentialAction']['query-input'] = array();
$website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
// valueRequired
$website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
// valueName
$website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
// Scope END: PropertyValueSpecification
// $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->';
// Scope END: SearchAction
// $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->';
// Scope END: WebSite
// $metadata_arr[] = '</span> <!-- Scope END: WebSite -->';
$metadata_arr = array($main_entity_arr, $website_arr);
// Author archive
} elseif (is_author()) {
// Author object
// NOTE: Inside the author archives `$post->post_author` does not contain the author object.
// In this case the $post (get_queried_object()) contains the author object itself.
// We also can get the author object with the following code. Slug is what WP uses to construct urls.
// $author = get_user_by( 'slug', get_query_var( 'author_name' ) );
// Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives.
// Access user meta with: $author->description, $author->user_email, etc
// $author = get_queried_object();
$author = $post;
// Person
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
// $metadata_arr[] = '<span itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
$metadata_arr['@type'] = 'Person';
// headline - contains title information
// NOTE: Not supported for person
//$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $author) );
// Get author metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $author->ID, $options ) );
$metadata_arr = array_merge($metadata_arr, amt_get_jsonld_schemaorg_author_array($author->ID, $options));
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url(get_author_posts_url($author->ID));
// Scope END: Person
// $metadata_arr[] = '</span> <!-- Scope END: Person -->';
} elseif (amt_is_product()) {
// Scope BEGIN: Product: http://schema.org/Product
// $metadata_arr[] = '<!-- Scope BEGIN: Product -->';
// $metadata_arr[] = '<div itemscope itemtype="http://schema.org/Product"' . amt_get_schemaorg_itemref('product') . '>';
// Schema.org type
$metadata_arr['@type'] = 'Product';
// ID
$metadata_arr['@id'] = amt_get_schemaorg_entity_id('product');
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr['url'] = esc_url_raw(amt_get_permalink_for_multipage($post));
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url(amt_get_permalink_for_multipage($post));
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['name'] = esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID))));
// headline - contains title information
//$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $post) );
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
//if ( empty($content_desc) ) {
// // Use the post body as the description. Product objects do not support body text.
// // TODO: ERROR here $post_body var does not exist
// $content_desc = sanitize_text_field( amt_sanitize_description( $post_body ) );
//}
if (!empty($content_desc)) {
$metadata_arr['description'] = esc_attr(amt_process_paged($content_desc));
}
// Dates
$metadata_arr['releaseDate'] = esc_attr(amt_iso8601_date($post->post_date));
// Images
$metadata_arr['image'] = array();
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_product', 'full');
$image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
if (!empty($image_meta_array)) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
// $current_image_obj = array();
// $current_image_obj['@type'] = 'ImageObject';
// $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
// $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
// $metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Further image processing
} else {
// Set to true if any image attachments are found. Use to finally add the default image
// if no image attachments have been found.
$has_images = false;
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
// Image - Featured image is checked first, so that it can be the first associated image.
if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Get the image attachment object
$image = get_post(get_post_thumbnail_id($post->ID));
// metadata BEGIN
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_product', 'full');
// Get image metatags.
$metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $image, $size = $image_size);
// metadata END
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Images have been found.
$has_images = true;
}
// Scope END: ImageObject
// If no images have been found so far use the default image, if set.
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
if ($has_images === false) {
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_product', 'full');
$image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
if (!empty($image_meta_array)) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
//$current_image_obj = array();
//$current_image_obj['@type'] = 'ImageObject';
//$current_image_obj['url'] = esc_url_raw( $options["default_image_url"] );
//$current_image_obj['contentUrl'] = esc_url_raw( $options["default_image_url"] );
//$metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
}
// Scope END: ImageObject
}
// Extend the current metadata with properties of the Product object.
// See: http://schema.org/Product
$metadata_arr = apply_filters('amt_product_data_jsonld_schemaorg', $metadata_arr, $post);
// Scope END: Product
// $metadata_arr[] = '</div> <!-- Scope END: Product -->';
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_product', $metadata_arr);
// Add post body
// Remove last closing '</div>' tag, add post body and re-add the closing div afterwards.
// $closing_product_tag = array_pop($metadata_arr);
// Product objects do not support a 'text' itemprop. We just add a div for now
// for consistency with Article objects.
// TODO: it should allow filtering '<div>'
// $metadata_arr[] = '<div> <!-- Product text body: BEGIN -->';
// $metadata_arr[] = $post_body;
// $metadata_arr[] = '</div> <!-- Product text body: END -->';
// Now add closing tag for Article
// $metadata_arr[] = $closing_product_tag;
// Attachemnts
} elseif (is_attachment()) {
$mime_type = get_post_mime_type($post->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
// Early metatags - Scope starts
if ('image' == $attachment_type) {
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<div itemscope itemtype="http://schema.org/ImageObject"' . amt_get_schemaorg_itemref('attachment_image') . '>';
} elseif ('video' == $attachment_type) {
// Scope BEGIN: VideoObject: http://schema.org/VideoObject
// $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
// $metadata_arr[] = '<div itemscope itemtype="http://schema.org/VideoObject"' . amt_get_schemaorg_itemref('attachment_video') . '>';
// Schema.org type
$metadata_arr['@type'] = 'VideoObject';
} elseif ('audio' == $attachment_type) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
// $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
// $metadata_arr[] = '<div itemscope itemtype="http://schema.org/AudioObject"' . amt_get_schemaorg_itemref('attachment_audio') . '>';
// Schema.org type
$metadata_arr['@type'] = 'AudioObject';
} else {
// we do not currently support other attachment types, so we stop processing here
return array();
}
// Metadata common to all attachments
// Do not add a publisher on personal websites (static front page is source of author profile).
if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) {
// Publisher
// Scope BEGIN: Organization: http://schema.org/Organization
// $metadata_arr[] = '<!-- Scope BEGIN: Organization -->';
// $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>';
// Get publisher metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
$metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
// Scope END: Organization
// $metadata_arr[] = '</span> <!-- Scope END: Organization -->';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
// $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
// Get author metatags
$metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array($post->post_author, $options);
// Scope END: Person
// $metadata_arr[] = '</span> <!-- Scope END: Person -->';
// name
$metadata_arr['name'] = esc_attr(strip_tags(get_the_title($post->ID)));
// headline - contains title information
$metadata_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr['description'] = esc_attr($content_desc);
}
// Dates
$metadata_arr['datePublished'] = esc_attr(amt_iso8601_date($post->post_date));
$metadata_arr['dateModified'] = esc_attr(amt_iso8601_date($post->post_modified));
$metadata_arr['copyrightYear'] = esc_attr(mysql2date('Y', $post->post_date));
// Language
$metadata_arr['inLanguage'] = esc_attr(str_replace('-', '_', amt_get_language_content($options, $post)));
// Thumbnail
// A featured image is supported by video and audio attachments.
// If one is set, then it is set as the thumbnail of the video/audio object.
if ('video' == $attachment_type || 'audio' == $attachment_type) {
if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Thumbnail URL of the featured image
$image_size = apply_filters('amt_image_size_attachment', 'full');
$thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
$metadata_arr['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
}
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url(get_permalink($post->ID));
// Metadata specific to each attachment type
if ('image' == $attachment_type) {
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_attachment', 'full');
// Get image metatags. $post is an image object.
$metadata_arr = array_merge($metadata_arr, amt_get_jsonld_schemaorg_image_array($options, $post, $size = $image_size, $is_representative = true));
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: ImageObject
// $metadata_arr[] = '</div> <!-- Scope END: ImageObject -->';
} elseif ('video' == $attachment_type) {
// Video specific metatags
// URL (links to image file)
//$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['url'] = esc_url_raw(wp_get_attachment_url($post->ID));
// sameAs (links to attachment page)
$metadata_arr['sameAs'] = esc_url_raw(get_permalink($post->ID));
$metadata_arr['contentUrl'] = esc_url_raw(wp_get_attachment_url($post->ID));
$metadata_arr['encodingFormat'] = esc_attr($mime_type);
// Required by Google
$metadata_arr['uploadDate'] = esc_attr(amt_iso8601_date($post->post_date));
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: VideoObject
// $metadata_arr[] = '</div> <!-- Scope END: VideoObject -->';
} elseif ('audio' == $attachment_type) {
// Audio specific metatags
// URL (links to image file)
//$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['url'] = esc_url_raw(wp_get_attachment_url($post->ID));
// sameAs (links to attachment page)
$metadata_arr['sameAs'] = esc_url_raw(get_permalink($post->ID));
$metadata_arr['contentUrl'] = esc_url_raw(wp_get_attachment_url($post->ID));
$metadata_arr['encodingFormat'] = esc_attr($mime_type);
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: AudioObject
// $metadata_arr[] = '</div> <!-- Scope END: AudioObject -->';
}
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_attachment', $metadata_arr);
// Content
// Posts, pages, custom content types (attachments excluded, caught in previous clause)
// Note: content might be multipage. Process with amt_process_paged() wherever needed.
} elseif (is_singular()) {
// Set main metadata entity. By default this set to Article.
$main_content_object = 'Article';
// Check for Page
// Main entity is set to WebPage on pages
// DEV NOTE: Since many themes already set the WebPage itemscope on the
// body element of the web page, set it to WebPage automatically would
// result in duplicate entities. So this has to be done manually via
// a filtering function.
// if ( is_page() ) {
// $main_content_object = 'WebPage';
// }
// Check for Review
$review_data = amt_get_review_data($post);
if (!empty($review_data)) {
$main_content_object = 'Review';
}
// Allow filtering the main metadata object for content.
$main_content_object = apply_filters('amt_schemaorg_object_main', $main_content_object);
// Scope BEGIN: Article: http://schema.org/Article
// $metadata_arr[] = '<!-- Scope BEGIN: ' . esc_attr($main_content_object) . ' -->';
// $metadata_arr[] = '<div itemscope itemtype="http://schema.org/' . esc_attr($main_content_object) . '"' . amt_get_schemaorg_itemref('content') . '>';
// Schema.org type
$metadata_arr['@type'] = esc_attr($main_content_object);
// Do not add a publisher on personal websites (static front page is source of author profile).
if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) {
// Publisher
// Scope BEGIN: Organization: http://schema.org/Organization
// $metadata_arr[] = '<!-- Scope BEGIN: Organization -->';
// $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>';
// Get publisher metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
$metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
// Scope END: Organization
// $metadata_arr[] = '</span> <!-- Scope END: Organization -->';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
// $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
// Get author metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $post->post_author, $options ) );
$metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array($post->post_author, $options);
// Scope END: Person
// $metadata_arr[] = '</span> <!-- Scope END: Person -->';
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr['url'] = esc_url_raw(amt_get_permalink_for_multipage($post));
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url(amt_get_permalink_for_multipage($post));
// Dates
$metadata_arr['datePublished'] = esc_attr(amt_iso8601_date($post->post_date));
$metadata_arr['dateModified'] = esc_attr(amt_iso8601_date($post->post_modified));
$metadata_arr['copyrightYear'] = esc_attr(mysql2date('Y', $post->post_date));
// Language
$metadata_arr['inLanguage'] = esc_attr(str_replace('-', '_', amt_get_language_content($options, $post)));
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['name'] = esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID))));
// headline - contains title information
$metadata_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr['description'] = esc_attr(amt_process_paged($content_desc));
}
/*
// Section: We use the first category as the section
$first_cat = sanitize_text_field( amt_sanitize_keywords( amt_get_first_category($post) ) );
if (!empty($first_cat)) {
$metadata_arr[] = '<meta itemprop="articleSection" content="' . esc_attr( $first_cat ) . '" />';
}
*/
// Add articleSection in Article object only.
if ($main_content_object == 'Article') {
$categories = get_the_category($post->ID);
$categories = apply_filters('amt_post_categories_for_schemaorg', $categories);
foreach ($categories as $cat) {
$section = trim($cat->cat_name);
if (!empty($section) && $cat->slug != 'uncategorized') {
$metadata_arr['articleSection'] = esc_attr($section);
}
}
}
// Add review properties if Review
if ($main_content_object == 'Review') {
// $metadata_arr[] = '<!-- Review Information BEGIN -->';
// $metadata_arr[] = amt_get_review_info_box( $review_data );
// $metadata_arr[] = '<!-- Review Information END -->';
// Reviewed Item
$metadata_arr['itemReviewed'] = array();
$metadata_arr['itemReviewed']['@type'] = esc_attr($review_data['object']);
$metadata_arr['itemReviewed']['name'] = esc_attr($review_data['name']);
$metadata_arr['itemReviewed']['sameAs'] = esc_url_raw($review_data['sameAs']);
// Extra properties of reviewed item
foreach ($review_data['extra'] as $key => $value) {
if (is_array($value)) {
// Add sub entity
// If it is an array, the 'object' property is mandatory
if (!array_key_exists('object', $value)) {
continue;
}
$metadata_arr['itemReviewed'][esc_attr($key)] = array();
$metadata_arr['itemReviewed'][esc_attr($key)]['@type'] = esc_attr($value['object']);
foreach ($value as $subkey => $subvalue) {
if ($subkey != 'object') {
if (in_array($subkey, array('url', 'sameAs'))) {
$metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_url_raw($subvalue);
} else {
$metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_attr($subvalue);
}
}
}
} else {
// Add simple meta element
$metadata_arr['itemReviewed'][esc_attr($key)] = esc_attr($value);
}
}
// Rating
$metadata_arr['reviewRating'] = array();
$metadata_arr['reviewRating']['@type'] = 'Rating';
$metadata_arr['reviewRating']['ratingValue'] = esc_attr($review_data['ratingValue']);
$bestrating = apply_filters('amt_schemaorg_review_bestrating', '5');
$metadata_arr['reviewRating']['bestRating'] = esc_attr($bestrating);
}
// Keywords - We use the keywords defined by Add-Meta-Tags
$keywords = amt_get_content_keywords($post);
if (!empty($keywords)) {
$metadata_arr['keywords'] = esc_attr($keywords);
}
// Referenced Items
$referenced_url_list = amt_get_referenced_items($post);
if (!empty($referenced_url_list)) {
$metadata_arr['referencedItem'] = array();
foreach ($referenced_url_list as $referenced_url) {
$referenced_url = trim($referenced_url);
if (!empty($referenced_url)) {
$metadata_arr['referencedItem'][] = esc_url_raw($referenced_url);
}
}
}
// Images
$metadata_arr['image'] = array();
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
if (!empty($image_meta_array)) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
// $current_image_obj = array();
// $current_image_obj['@type'] = 'ImageObject';
// $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
// $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
// $metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Further image processing
} else {
// Media Limits
$image_limit = amt_metadata_get_image_limit($options);
$video_limit = amt_metadata_get_video_limit($options);
$audio_limit = amt_metadata_get_audio_limit($options);
// Counters
$ic = 0;
// image counter
$vc = 0;
// video counter
$ac = 0;
// audio counter
// We store the featured image ID in this variable so that it can easily be excluded
// when all images are parsed from the $attachments array.
$featured_image_id = 0;
// Set to true if any image attachments are found. Use to finally add the default image
// if no image attachments have been found.
$has_images = false;
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
// Image - Featured image is checked first, so that it can be the first associated image.
if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Thumbnail URL
// First add the thumbnail URL of the featured image
$thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), 'thumbnail');
$metadata_arr['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
// Add full image object for featured image.
// Get the image attachment object
$image = get_post(get_post_thumbnail_id($post->ID));
// metadata BEGIN
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_content', 'full');
// Get image metatags.
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_image_metatags( $options, $image, $size=$image_size ) );
$metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $image, $size = $image_size);
// metadata END
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Finally, set the $featured_image_id
$featured_image_id = get_post_thumbnail_id($post->ID);
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
}
// Scope END: ImageObject
// Process all attachments and add metatags (featured image will be excluded)
foreach ($attachments as $attachment) {
// Excluded the featured image since
if ($attachment->ID != $featured_image_id) {
$mime_type = get_post_mime_type($attachment->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
if ('image' == $attachment_type && $ic < $image_limit) {
// metadata BEGIN
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_content', 'full');
// Get image metatags.
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_image_metatags( $options, $attachment, $size=$image_size ) );
$metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $attachment, $size = $image_size);
// metadata END
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
} elseif ('video' == $attachment_type && $vc < $video_limit) {
// Scope BEGIN: VideoObject: http://schema.org/VideoObject
// $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
// $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">';
// Video specific metatags
// URL (for attachments: links to attachment page)
$current_video_obj = array();
$current_video_obj['@type'] = 'VideoObject';
// URL (links to image file)
//$current_video_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_video_obj['url'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
// sameAs (links to attachment page)
$current_video_obj['sameAs'] = esc_url_raw(get_permalink($attachment->ID));
$current_video_obj['contentUrl'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
$current_video_obj['encodingFormat'] = esc_attr($mime_type);
// name
$current_video_obj['name'] = esc_attr(strip_tags(get_the_title($attachment->ID)));
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if (!empty($content_desc)) {
$current_video_obj['description'] = esc_attr($content_desc);
}
// Thumbnail
// A featured image is supported by video and audio attachments.
// If one is set, then it is set as the thumbnail of the video/audio object.
if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) {
// Thumbnail URL of the featured image
$image_size = apply_filters('amt_image_size_content', 'full');
$thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size);
$current_video_obj['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$current_video_obj['uploadDate'] = esc_attr(amt_iso8601_date($attachment->post_date));
$metadata_arr['video'][] = $current_video_obj;
// Scope END: VideoObject
// $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->';
// Increase video counter
$vc++;
} elseif ('audio' == $attachment_type && $ac < $audio_limit) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
// $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
// $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">';
// Audio specific metatags
// URL (for attachments: links to attachment page)
$current_audio_obj = array();
$current_audio_obj['@type'] = 'AudioObject';
// URL (links to image file)
//$current_audio_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_audio_obj['url'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
// sameAs (links to attachment page)
$current_audio_obj['sameAs'] = esc_url_raw(get_permalink($attachment->ID));
$current_audio_obj['contentUrl'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
$current_audio_obj['encodingFormat'] = esc_attr($mime_type);
// name
$current_audio_obj['name'] = esc_attr(strip_tags(get_the_title($attachment->ID)));
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if (!empty($content_desc)) {
$current_audio_obj['description'] = esc_attr($content_desc);
}
// Thumbnail
// A featured image is supported by video and audio attachments.
// If one is set, then it is set as the thumbnail of the video/audio object.
if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) {
// Thumbnail URL of the featured image
$image_size = apply_filters('amt_image_size_content', 'full');
$thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size);
$current_audio_obj['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$current_audio_obj['uploadDate'] = esc_attr(amt_iso8601_date($attachment->post_date));
$metadata_arr['audio'][] = $current_audio_obj;
// Scope END: AudioObject
// $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->';
// Increase audio counter
$ac++;
}
}
}
// Embedded Media
foreach ($embedded_media['images'] as $embedded_item) {
if ($ic == $image_limit) {
break;
}
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
$current_image_obj = array();
$current_image_obj['@type'] = 'ImageObject';
// name (title)
$current_image_obj['name'] = esc_attr($embedded_item['alt']);
// caption
$current_image_obj['caption'] = esc_attr($embedded_item['alt']);
// alt
$current_image_obj['text'] = esc_attr($embedded_item['alt']);
// URL (links to image file)
//$current_image_obj['url'] = esc_url_raw( $embedded_item['page'] );
$current_image_obj['url'] = esc_url_raw($embedded_item['image']);
// sameAs (links to attachment page)
$current_image_obj['sameAs'] = esc_url_raw($embedded_item['page']);
// thumbnail url
$current_image_obj['thumbnailUrl'] = esc_url_raw($embedded_item['thumbnail']);
// main image
$current_image_obj['contentUrl'] = esc_url_raw($embedded_item['image']);
if (apply_filters('amt_extended_image_tags', true)) {
$current_image_obj['width'] = esc_attr($embedded_item['width']);
$current_image_obj['height'] = esc_attr($embedded_item['height']);
$current_image_obj['encodingFormat'] = 'image/jpeg';
}
// embedURL
$current_image_obj['embedURL'] = esc_url_raw($embedded_item['player']);
$metadata_arr['image'][] = $current_image_obj;
// Scope END: ImageObject
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
}
foreach ($embedded_media['videos'] as $embedded_item) {
if ($vc == $video_limit) {
break;
}
// Scope BEGIN: VideoObject: http://schema.org/VideoObject
// See: http://googlewebmastercentral.blogspot.gr/2012/02/using-schemaorg-markup-for-videos.html
// See: https://support.google.com/webmasters/answer/2413309?hl=en
// $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
// $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">';
$current_video_obj = array();
// Video Embed URL
$current_video_obj['embedURL'] = esc_url_raw($embedded_item['player']);
// playerType
$current_video_obj['playerType'] = 'application/x-shockwave-flash';
// size
$current_video_obj['width'] = esc_attr($embedded_item['width']);
$current_video_obj['height'] = esc_attr($embedded_item['height']);
$metadata_arr['video'][] = $current_video_obj;
// Scope END: VideoObject
// $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->';
// Increase video counter
$vc++;
}
foreach ($embedded_media['sounds'] as $embedded_item) {
if ($ac == $audio_limit) {
break;
}
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
// $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
// $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">';
$current_audio_obj = array();
// Audio Embed URL
$current_audio_obj['embedURL'] = esc_url_raw($embedded_item['player']);
// playerType
$current_audio_obj['playerType'] = 'application/x-shockwave-flash';
$metadata_arr['audio'][] = $current_audio_obj;
// Scope END: AudioObject
// $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->';
// Increase audio counter
$ac++;
}
// If no images have been found so far use the default image, if set.
// Scope BEGIN: ImageObject: http://schema.org/ImageObject
if ($has_images === false) {
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
if (!empty($image_meta_array)) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
// $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
// $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
$current_image_obj = array();
$current_image_obj['@type'] = 'ImageObject';
$current_image_obj['url'] = esc_url_raw($options["default_image_url"]);
$current_image_obj['contentUrl'] = esc_url_raw($options["default_image_url"]);
$metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
// $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
}
// Scope END: ImageObject
}
// Article Body
// The article body is added after filtering the generated microdata below.
// TODO: also check: comments, contributor, copyrightHolder, , creator, dateCreated, discussionUrl, editor, version (use post revision if possible)
// Scope END: Article
// $metadata_arr[] = '</div> <!-- Scope END: ' . esc_attr($main_content_object) . ' -->';
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_content', $metadata_arr);
// Add articleBody to Artice
// Now add the article. Remove last closing '</span>' tag, add articleBody and re-add the closing span afterwards.
// $closing_article_tag = array_pop($metadata_arr);
// Use the 'text' itemprop by default for the main text body of the CreativeWork,
// so it can be used by more subtypes than Article.
// But set it explicitly to 'articleBody if the main entiry is 'Article'
// or 'reviewBody' if the main entity is a 'Review'.
$main_text_property = 'text';
if ($main_content_object == 'Article') {
$main_text_property = 'articleBody';
} elseif ($main_content_object == 'Review') {
$main_text_property = 'reviewBody';
}
// Allow filtering of the main text property.
$main_text_property = apply_filters('amt_schemaorg_property_main_text', $main_text_property);
// $metadata_arr[] = '<div itemprop="' . esc_attr($main_text_property) . '">';
// Add main content
//$metadata_arr[ esc_attr($main_text_property) ] = $post->post_content;
// $metadata_arr[] = $post_body;
// $metadata_arr[] = '</div> <!-- Itemprop END: ' . esc_attr($main_text_property) . ' -->';
// Now add closing tag for Article
// $metadata_arr[] = $closing_article_tag;
}
// Add our comment
// if ( count( $metadata_arr ) > 0 ) {
// array_unshift( $metadata_arr, "<!-- BEGIN Schema.org microdata added by Add-Meta-Tags WordPress plugin -->" );
// array_unshift( $metadata_arr, "" ); // Intentionaly left empty
// array_push( $metadata_arr, "<!-- END Schema.org microdata added by Add-Meta-Tags WordPress plugin -->" );
// array_push( $metadata_arr, "" ); // Intentionaly left empty
// }
//return $post_body;
// return implode( PHP_EOL, $metadata_arr );
// Filtering of the generated microdata for footer
$metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_head', $metadata_arr);
// if ( count( $metadata_arr ) > 0 ) {
// array_unshift( $metadata_arr, '<script type="application/ld+json">' );
// array_unshift( $metadata_arr, "" ); // Intentionaly left empty
// array_push( $metadata_arr, '</script>' );
// array_push( $metadata_arr, "" ); // Intentionaly left empty
// }
// return $metadata_arr;
if (count($metadata_arr) > 1) {
// contains @context by default
return array('<script type="application/ld+json">', 'json+ld_data' => json_encode($metadata_arr), '</script>');
} else {
return array();
}
}
/**
* Generates basic metadata for the head area.
*
*/
function amt_add_basic_metadata_head($post, $attachments, $embedded_media, $options)
{
$do_description = $options["auto_description"] == "1" ? true : false;
$do_keywords = $options["auto_keywords"] == "1" ? true : false;
$do_noodp_description = $options["noodp_description"] == "1" ? true : false;
// Array to store metadata
$metadata_arr = array();
// Robots Meta Tag.
$robots_content = '';
if ($do_noodp_description && (is_front_page() || is_singular())) {
// Add NOODP on posts and pages
$robots_content = 'NOODP,NOYDIR';
// Allow filtering of the robots meta tag content.
$robots_content = apply_filters('amt_robots_data', $robots_content);
}
// Add a robots meta tag if its content is not empty.
if (!empty($robots_content)) {
$metadata_arr[] = '<meta name="robots" content="' . $robots_content . '" />';
}
// Default front page displaying latest posts
if (amt_is_default_front_page()) {
// Description and Keywords from the Add-Meta-Tags settings override
// default behaviour.
// Description
if ($do_description) {
// Use the site description from the Add-Meta-Tags settings.
// Fall back to the blog description.
$site_description = $options["site_description"];
if (empty($site_description)) {
// Alternatively, use the blog description
// Here we sanitize the provided description for safety
$site_description = sanitize_text_field(amt_sanitize_description(get_bloginfo('description')));
}
// If we have a description, use it in the description meta-tag of the front page
if (!empty($site_description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($site_description)) . '" />';
}
}
// Keywords
if ($do_keywords) {
// Use the site keywords from the Add-Meta-Tags settings.
// Fall back to the blog categories.
$site_keywords = $options["site_keywords"];
if (empty($site_keywords)) {
// Alternatively, use the blog categories
// Here we sanitize the provided keywords for safety
$site_keywords = sanitize_text_field(amt_sanitize_keywords(amt_get_all_categories()));
}
// If we have keywords, use them in the keywords meta-tag of the front page
if (!empty($site_keywords)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($site_keywords) . '" />';
}
}
// Attachments
} elseif (is_attachment()) {
// has to be before is_singular() since is_singular() is true for attachments.
// Description
if ($do_description) {
$description = amt_get_content_description($post, $auto = $do_description);
if (!empty($description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($description)) . '" />';
}
}
// No keywords
// Content pages and static pages used as "front page" and "posts page"
// This also supports products via is_singular()
} elseif (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
// Description
if ($do_description) {
$description = amt_get_content_description($post, $auto = $do_description);
if (!empty($description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($description)) . '" />';
}
}
// Keywords
if ($do_keywords) {
$keywords = amt_get_content_keywords($post, $auto = $do_keywords);
if (!empty($keywords)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($keywords) . '" />';
// Static Posts Index Page
// If no keywords have been set in the metabox and this is the static page,
// which displayes the latest posts, use the categories of the posts in the loop.
} elseif (amt_is_static_home()) {
// Here we sanitize the provided keywords for safety
$cats_from_loop = sanitize_text_field(amt_sanitize_keywords(implode(', ', amt_get_categories_from_loop())));
if (!empty($cats_from_loop)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($cats_from_loop) . '" />';
}
}
}
// 'news_keywords'
$newskeywords = amt_get_post_meta_newskeywords($post->ID);
if (!empty($newskeywords)) {
$metadata_arr[] = '<meta name="news_keywords" content="' . esc_attr($newskeywords) . '" />';
}
// per post full meta tags
$full_metatags_for_content = amt_get_post_meta_full_metatags($post->ID);
if (!empty($full_metatags_for_content)) {
$metadata_arr[] = html_entity_decode(stripslashes($full_metatags_for_content));
}
// Category based archives
} elseif (is_category()) {
if ($do_description) {
// If set, the description of the category is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(category_description()));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_category_archive', __('Content filed under the %s category.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_cat_title($prefix = '', $display = false));
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The category name alone is included in the 'keywords' metatag
// Here we sanitize the provided keywords for safety
$cur_cat_name = sanitize_text_field(amt_sanitize_keywords(single_cat_title($prefix = '', $display = false)));
if (!empty($cur_cat_name)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($cur_cat_name) . '" />';
}
}
} elseif (is_tag()) {
if ($do_description) {
// If set, the description of the tag is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(tag_description()));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_tag_archive', __('Content tagged with %s.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_tag_title($prefix = '', $display = false));
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The tag name alone is included in the 'keywords' metatag
// Here we sanitize the provided keywords for safety
$cur_tag_name = sanitize_text_field(amt_sanitize_keywords(single_tag_title($prefix = '', $display = false)));
if (!empty($cur_tag_name)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($cur_tag_name) . '" />';
}
}
// Custom taxonomies - Should be after is_category() and is_tag(), as it would catch those taxonomies as well.
// This also supports product groups via is_tax(). Only product groups that are WordPress custom taxonomies are supported.
} elseif (is_tax()) {
// Taxonomy term object.
// When viewing taxonomy archives, the $post object is the taxonomy term object. Check with: var_dump($post);
$tax_term_object = $post;
//var_dump($tax_term_object);
if ($do_description) {
// If set, the description of the custom taxonomy term is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(term_description($tax_term_object->term_id, $tax_term_object->taxonomy)));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
// Construct the filter name. Template: ``amt_generic_description_TAXONOMYSLUG_archive``
$taxonomy_description_filter_name = sprintf('amt_generic_description_%s_archive', $tax_term_object->taxonomy);
// var_dump($taxonomy_description_filter_name);
$generic_description = apply_filters($taxonomy_description_filter_name, __('Content filed under the %s taxonomy.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_term_title($prefix = '', $display = false));
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The taxonomy term name alone is included in the 'keywords' metatag.
// Here we sanitize the provided keywords for safety.
$cur_tax_term_name = sanitize_text_field(amt_sanitize_keywords(single_term_title($prefix = '', $display = false)));
if (!empty($cur_tax_term_name)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($cur_tax_term_name) . '" />';
}
}
} elseif (is_author()) {
// Author object
// NOTE: Inside the author archives `$post->post_author` does not contain the author object.
// In this case the $post (get_queried_object()) contains the author object itself.
// We also can get the author object with the following code. Slug is what WP uses to construct urls.
// $author = get_user_by( 'slug', get_query_var( 'author_name' ) );
// Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives.
// Access user meta with: $author->description, $author->user_email, etc
// $author = get_queried_object();
$author = $post;
// If a bio has been set in the user profile, use it in the description metatag of the
// first page of the author archive *ONLY*. The other pages of the author archive use a generic description.
// This happens because the 1st page of the author archive is considered the profile page
// by the other metadata modules.
// Otherwise use a generic meta tag.
if ($do_description) {
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field(amt_sanitize_description($author->description));
if (empty($author_description) || is_paged()) {
// Note: Contains multipage information through amt_process_paged()
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_author_archive', __('Content published by %s.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, $author->display_name);
$metadata_arr[] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta name="description" content="' . esc_attr($author_description) . '" />';
}
}
// For the keywords metatag use the categories of the posts the author has written and are displayed in the current page.
if ($do_keywords) {
// Here we sanitize the provided keywords for safety
$cats_from_loop = sanitize_text_field(amt_sanitize_keywords(implode(', ', amt_get_categories_from_loop())));
if (!empty($cats_from_loop)) {
$metadata_arr[] = '<meta name="keywords" content="' . esc_attr($cats_from_loop) . '" />';
}
}
}
// Add site wide meta tags
if (!empty($options["site_wide_meta"])) {
$metadata_arr[] = html_entity_decode(stripslashes($options["site_wide_meta"]));
}
// On every page print the copyright head link
if (!empty($options["copyright_url"])) {
$metadata_arr[] = '<link rel="copyright" type="text/html" title="' . esc_attr(get_bloginfo('name')) . ' Copyright Information" href="' . esc_url_raw($options["copyright_url"]) . '" />';
}
// Filtering of the generated basic metadata
$metadata_arr = apply_filters('amt_basic_metadata_head', $metadata_arr);
return $metadata_arr;
}
/**
* Generates Opengraph metadata.
*
* Currently for:
* - home page
* - author archive
* - content
*/
function amt_add_opengraph_metadata_head($post, $attachments, $embedded_media, $options)
{
if (apply_filters('amt_exclude_opengraph_metadata', false)) {
return array();
}
$do_auto_opengraph = $options["auto_opengraph"] == "1" ? true : false;
if (!$do_auto_opengraph) {
return array();
}
$metadata_arr = array();
// fb:app_id & fb:admins
// We currently let users add the full meta tags for fb:app_id and fb:admins in the site wide meta tags box.
// fb:app_id appears everywhere
//if ( ! empty($options['social_main_facebook_app_id']) ) {
// $metadata_arr[] = '<meta property="fb:app_id" content="' . esc_attr( $options['social_main_facebook_app_id'] ) . '" />';
//}
// fb:admins appear everywhere
//if ( ! empty($options['social_main_facebook_admins']) ) {
// $fb_admins_arr = explode(',', $options['social_main_facebook_admins']);
// foreach ( $fb_admins_arr as $fb_admin ) {
// $metadata_arr[] = '<meta property="fb:admins" content="' . esc_attr( trim($fb_admin) ) . '" />';
// }
//}
// no publisher meta tag for facebook, unless it is content
// Custom content override
if (amt_is_custom($post, $options)) {
// Return metadata with:
// add_filter( 'amt_custom_metadata_opengraph', 'my_function', 10, 5 );
// Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />'
$metadata_arr = apply_filters('amt_custom_metadata_opengraph', $metadata_arr, $post, $options, $attachments, $embedded_media);
// Default front page displaying the latest posts
} elseif (amt_is_default_front_page()) {
// Type
$metadata_arr[] = '<meta property="og:type" content="website" />';
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Note: different method to get the permalink on paged archives
if (is_paged()) {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_pagenum_link(get_query_var('paged'))) . '" />';
} else {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />';
}
// Site description - Note: Contains multipage information through amt_process_paged()
$site_description = amt_get_site_description($options);
if (empty($site_description)) {
$site_description = get_bloginfo('description');
}
if (!empty($site_description)) {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($site_description)) . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_site($options))) . '" />';
// Site Image
// Use the default image, if one has been set.
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
// Front page using a static page
// Note: might also contain a listing of posts which may be paged, so use amt_process_paged()
} elseif (amt_is_static_front_page()) {
// Type
if ($options['author_profile_source'] == 'frontpage') {
// The front page is treated as the profile page.
$metadata_arr[] = '<meta property="og:type" content="profile" />';
} else {
$metadata_arr[] = '<meta property="og:type" content="website" />';
}
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Note: different method to get the permalink on paged archives
if (is_paged()) {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_pagenum_link(get_query_var('paged'))) . '" />';
} else {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />';
}
// Site Description - Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
// Use the pages custom description
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
} elseif (get_bloginfo('description')) {
// Alternatively use the blog's description
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged(get_bloginfo('description'))) . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />';
// Site Image
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_attributes_array(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $global_image_override_url ) ) . '" />';
// }
// Then try the featured image, if exists.
} elseif (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_index', 'full');
$metadata_arr = array_merge($metadata_arr, amt_get_opengraph_image_metatags($options, get_post_thumbnail_id($post->ID), $size = $image_size));
} else {
// Use the default image, if one has been set.
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
// Alternatively, use default image
//$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
//if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $options["default_image_url"] ) ) . '" />';
//}
}
// Profile data (only if the front page has been set as the source of profile.)
if ($options['author_profile_source'] == 'frontpage') {
// Profile first and last name
$last_name = get_the_author_meta('last_name', $post->post_author);
if (!empty($last_name)) {
$metadata_arr[] = '<meta property="profile:last_name" content="' . esc_attr($last_name) . '" />';
}
$first_name = get_the_author_meta('first_name', $post->post_author);
if (!empty($first_name)) {
$metadata_arr[] = '<meta property="profile:first_name" content="' . esc_attr($first_name) . '" />';
}
}
// The posts index page - a static page displaying the latest posts
} elseif (amt_is_static_home()) {
// Type
$metadata_arr[] = '<meta property="og:type" content="website" />';
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Note: different method to get the permalink on paged archives
if (is_paged()) {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_pagenum_link(get_query_var('paged'))) . '" />';
} else {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_permalink($post->ID)) . '" />';
}
// Site Description - Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
// Use the pages custom description
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
} elseif (get_bloginfo('description')) {
// Alternatively use a generic description
$metadata_arr[] = '<meta property="og:description" content="' . amt_process_paged("An index of the latest content.") . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />';
// Site Image
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_attributes_array(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $global_image_override_url ) ) . '" />';
// }
// Then try the featured image, if exists.
} elseif (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_index', 'full');
$metadata_arr = array_merge($metadata_arr, amt_get_opengraph_image_metatags($options, get_post_thumbnail_id($post->ID), $size = $image_size));
} else {
// Use the default image, if one has been set.
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
// Alternatively, use default image
//$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
//if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $options["default_image_url"] ) ) . '" />';
//}
}
// Category, Tag, Taxonomy archives
// Note: product groups should pass the is_tax() validation, so no need for
// amt_is_product_group(). We do not support other product groups.
// amt_is_product_group() is used below to set the og:type to product.group.
} elseif (is_category() || is_tag() || is_tax()) {
// Taxonomy term object.
// When viewing taxonomy archives, the $post object is the taxonomy term object. Check with: var_dump($post);
$tax_term_object = $post;
//var_dump($tax_term_object);
// Type
// In case of a product group taxonomy, we set the og:type to product.group
if (amt_is_product_group()) {
$metadata_arr[] = '<meta property="og:type" content="product.group" />';
} else {
$metadata_arr[] = '<meta property="og:type" content="website" />';
}
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Note: different method to get the permalink on paged archives
$url = get_term_link($tax_term_object);
if (is_paged()) {
$url = trailingslashit($url) . get_query_var('paged') . '/';
}
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw($url) . '" />';
// Description
// If set, the description of the custom taxonomy term is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(term_description($tax_term_object->term_id, $tax_term_object->taxonomy)));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
// Filter name
if (is_category()) {
$generic_description = apply_filters('amt_generic_description_category_archive', __('Content filed under the %s category.', 'add-meta-tags'));
} elseif (is_tag()) {
$generic_description = apply_filters('amt_generic_description_tag_archive', __('Content tagged with %s.', 'add-meta-tags'));
} elseif (is_tax()) {
// Construct the filter name. Template: ``amt_generic_description_TAXONOMYSLUG_archive``
$taxonomy_description_filter_name = sprintf('amt_generic_description_%s_archive', $tax_term_object->taxonomy);
// var_dump($taxonomy_description_filter_name);
// Generic description
$generic_description = apply_filters($taxonomy_description_filter_name, __('Content filed under the %s taxonomy.', 'add-meta-tags'));
}
// Final generic description
$generic_description = sprintf($generic_description, single_term_title($prefix = '', $display = false));
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_site($options))) . '" />';
// Image
// Use an image from the 'Global image override' field.
// Otherwise, use a user defined image via filter.
// Otherwise use default image.
$image_data = amt_get_image_attributes_array(amt_get_term_meta_image_url($tax_term_object->term_id));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
} else {
// First filter using a term/taxonomy agnostic filter name.
$taxonomy_image_url = apply_filters('amt_taxonomy_force_image_url', '', $tax_term_object);
if (empty($taxonomy_image_url)) {
// Second filter (term/taxonomy dependent).
// Construct the filter name. Template: ``amt_taxonomy_image_url_TAXONOMYSLUG_TERMSLUG``
$taxonomy_image_url_filter_name = sprintf('amt_taxonomy_image_url_%s_%s', $tax_term_object->taxonomy, $tax_term_object->slug);
//var_dump($taxonomy_image_url_filter_name);
// The default image, if set, is used by default.
$taxonomy_image_url = apply_filters($taxonomy_image_url_filter_name, $options["default_image_url"]);
}
if (!empty($taxonomy_image_url)) {
$image_data = amt_get_image_attributes_array($taxonomy_image_url);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $taxonomy_image_url ) . '" />';
//if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $taxonomy_image_url ) ) . '" />';
//}
}
}
// Author archive. First page is considered a profile page.
} elseif (is_author()) {
// Author object
// NOTE: Inside the author archives `$post->post_author` does not contain the author object.
// In this case the $post (get_queried_object()) contains the author object itself.
// We also can get the author object with the following code. Slug is what WP uses to construct urls.
// $author = get_user_by( 'slug', get_query_var( 'author_name' ) );
// Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives.
// Access user meta with: $author->description, $author->user_email, etc
// $author = get_queried_object();
$author = $post;
// Type
if (!is_paged() && $options['author_profile_source'] == 'default') {
// We treat the first page of the archive as a profile, only if
// the profile source has been set to 'default'
$metadata_arr[] = '<meta property="og:type" content="profile" />';
} else {
$metadata_arr[] = '<meta property="og:type" content="website" />';
}
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
//if ( ! is_paged() ) {
// // We treat the first page of the archive as a profile
// $metadata_arr[] = '<meta property="og:title" content="' . esc_attr( $author->display_name ) . ' profile page" />';
//} else {
// $metadata_arr[] = '<meta property="og:title" content="' . esc_attr( amt_process_paged( "Content published by " . $author->display_name ) ) . '" />';
//}
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . ' profile page" />';
// URL - Note: different method to get the permalink on paged archives
// If a Facebook author profile URL has been provided, it has priority,
// Otherwise fall back to the WordPress author archive.
$fb_author_url = $author->amt_facebook_author_profile_url;
if (!empty($fb_author_url)) {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw($fb_author_url, array('http', 'https')) . '" />';
} else {
if (is_paged()) {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_pagenum_link(get_query_var('paged'))) . '" />';
} else {
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_author_posts_url($author->ID)) . '" />';
// The following makes no sense here. 'get_author_posts_url( $author->ID )' will do in all cases.
//$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw( amt_get_local_author_profile_url( $author->ID, $options ) ) . '" />';
}
}
// description - Note: Contains multipage information through amt_process_paged()
if (is_paged()) {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged("Content published by " . $author->display_name)) . '" />';
} else {
// Here we sanitize the provided description for safety
// We treat the first page of the archive as a profile
$author_description = sanitize_text_field(amt_sanitize_description($author->description));
if (empty($author_description)) {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr("Content published by " . $author->display_name) . '" />';
} else {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr($author_description) . '" />';
}
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_site($options))) . '" />';
// Profile Image
// First use the global image override URL
$image_data = amt_get_image_attributes_array(amt_get_user_meta_image_url($author->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
} else {
$author_email = sanitize_email($author->user_email);
$avatar_size = apply_filters('amt_avatar_size', 128);
$avatar_url = '';
// First try to get the avatar link by using get_avatar().
// Important: for this to work the "Show Avatars" option should be enabled in Settings > Discussion.
$avatar_img = get_avatar(get_the_author_meta('ID', $author->ID), $avatar_size, '', get_the_author_meta('display_name', $author->ID));
if (!empty($avatar_img)) {
if (preg_match("#src=['\"]([^'\"]+)['\"]#", $avatar_img, $matches)) {
$avatar_url = $matches[1];
}
} elseif (!empty($author_email)) {
// If the user has provided an email, we use it to construct a gravatar link.
$avatar_url = "http://www.gravatar.com/avatar/" . md5($author_email) . "?s=" . $avatar_size;
}
if (!empty($avatar_url)) {
//$avatar_url = html_entity_decode($avatar_url, ENT_NOQUOTES, 'UTF-8');
$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw($avatar_url) . '" />';
// Add an og:imagesecure_url if the image URL uses HTTPS
if (strpos($avatar_url, 'https://') !== false) {
$metadata_arr[] = '<meta property="og:imagesecure_url" content="' . esc_url_raw($avatar_url) . '" />';
}
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta property="og:image:width" content="' . esc_attr($avatar_size) . '" />';
$metadata_arr[] = '<meta property="og:image:height" content="' . esc_attr($avatar_size) . '" />';
// Since we do not have a way to determine the image type, the following meta tag is commented out
// TODO: make a function that detects the image type from the file extension (if a file extension is available)
//$metadata_arr[] = '<meta property="og:image:type" content="image/jpeg" />';
}
}
}
// Profile data (only on the 1st page of the archive)
if (!is_paged() && $options['author_profile_source'] == 'default') {
// Profile first and last name
$last_name = $author->last_name;
if (!empty($last_name)) {
$metadata_arr[] = '<meta property="profile:last_name" content="' . esc_attr($last_name) . '" />';
}
$first_name = $author->first_name;
if (!empty($first_name)) {
$metadata_arr[] = '<meta property="profile:first_name" content="' . esc_attr($first_name) . '" />';
}
}
// Custom Post Type archives
} elseif (is_post_type_archive()) {
// Custom post type object.
// When viewing custom post type archives, the $post object is the custom post type object. Check with: var_dump($post);
$post_type_object = $post;
//var_dump($post_type_object);
// Type
$metadata_arr[] = '<meta property="og:type" content="website" />';
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title - Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Note: different method to get the permalink on paged archives
$url = get_post_type_archive_link($post_type_object->name);
if (is_paged()) {
$url = trailingslashit($url) . get_query_var('paged') . '/';
}
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw($url) . '" />';
// Description
// Note: Contains multipage information through amt_process_paged()
// Add a filtered generic description.
// Construct the filter name. Template: ``amt_generic_description_posttype_POSTTYPESLUG_archive``
$custom_post_type_description_filter_name = sprintf('amt_generic_description_posttype_%s_archive', $post_type_object->name);
// var_dump($custom_post_type_description_filter_name);
// Generic description
$generic_description = apply_filters($custom_post_type_description_filter_name, __('%s archive.', 'add-meta-tags'));
// Final generic description
$generic_description = sprintf($generic_description, post_type_archive_title($prefix = '', $display = false));
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_site($options))) . '" />';
// Image
// Use a user defined image via filter. Otherwise use default image.
// First filter using a term/taxonomy agnostic filter name.
$posttype_image_url = apply_filters('amt_posttype_force_image_url', '', $post_type_object);
if (empty($posttype_image_url)) {
// Second filter (post type dependent).
// Construct the filter name. Template: ``amt_posttype_image_url_POSTTYPESLUG``
$posttype_image_url_filter_name = sprintf('amt_posttype_image_url_%s', $post_type_object->name);
//var_dump($posttype_image_url_filter_name);
// The default image, if set, is used by default.
$posttype_image_url = apply_filters($posttype_image_url_filter_name, $options["default_image_url"]);
}
if (!empty($posttype_image_url)) {
$image_data = amt_get_image_attributes_array($posttype_image_url);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $posttype_image_url ) . '" />';
//if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $posttype_image_url ) ) . '" />';
//}
}
// Attachments
} elseif (is_attachment()) {
$mime_type = get_post_mime_type($post->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
// First add metadata common to all attachment types.
// Type
// Note: there is no specific type for images/audio. We use article amd video
// TODO: Check whether we could use another type specific to each attachment type.
if ('video' == $attachment_type) {
// video.other og:type for video attachment pages
$og_type = 'video.other';
} else {
$og_type = 'article';
}
$og_type = apply_filters('amt_opengraph_og_type_attachment', $og_type);
$metadata_arr[] = '<meta property="og:type" content="' . esc_attr($og_type) . '" />';
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Title
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(get_permalink($post->ID)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr($content_desc) . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />';
// og:updated_time
$metadata_arr[] = '<meta property="og:updated_time" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />';
// Metadata specific to each attachment type
if ('image' == $attachment_type) {
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_attachment', 'full');
$metadata_arr = array_merge($metadata_arr, amt_get_opengraph_image_metatags($options, $post->ID, $size = $image_size));
} elseif ('video' == $attachment_type) {
if ($options["og_omit_video_metadata"] != "1") {
// Video tags
$metadata_arr[] = '<meta property="og:video" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />';
if (is_ssl() || !is_ssl() && $options["has_https_access"] == "1") {
$metadata_arr[] = '<meta property="og:video:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', wp_get_attachment_url($post->ID))) . '" />';
}
//
//$metadata_arr[] = '<meta property="og:video:width" content="' . esc_attr( $main_size_meta[1] ) . '" />';
//$metadata_arr[] = '<meta property="og:video:height" content="' . esc_attr( $main_size_meta[2] ) . '" />';
$metadata_arr[] = '<meta property="og:video:type" content="' . esc_attr($mime_type) . '" />';
}
} elseif ('audio' == $attachment_type) {
// Audio tags
$metadata_arr[] = '<meta property="og:audio" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />';
if (is_ssl() || !is_ssl() && $options["has_https_access"] == "1") {
$metadata_arr[] = '<meta property="og:audio:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', wp_get_attachment_url($post->ID))) . '" />';
}
$metadata_arr[] = '<meta property="og:audio:type" content="' . esc_attr($mime_type) . '" />';
}
// Article: meta tags
// Dates
$metadata_arr[] = '<meta property="article:published_time" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />';
$metadata_arr[] = '<meta property="article:modified_time" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />';
// Author
// If a Facebook author profile URL has been provided, it has priority,
// Otherwise fall back to the WordPress author archive.
$fb_author_url = get_the_author_meta('amt_facebook_author_profile_url', $post->post_author);
if (!empty($fb_author_url)) {
$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw($fb_author_url, array('http', 'https', 'mailto')) . '" />';
} else {
//$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw( get_author_posts_url( get_the_author_meta( 'ID', $post->post_author ) ) ) . '" />';
$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw(amt_get_local_author_profile_url(get_the_author_meta('ID', $post->post_author), $options)) . '" />';
}
// Publisher
// If a Facebook publisher profile URL has been provided, it has priority.
// Otherwise fall back to the WordPress blog home url.
if (!empty($options['social_main_facebook_publisher_profile_url'])) {
$metadata_arr[] = '<meta property="article:publisher" content="' . esc_url_raw($options['social_main_facebook_publisher_profile_url'], array('http', 'https', 'mailto')) . '" />';
} else {
$metadata_arr[] = '<meta property="article:publisher" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />';
}
// Posts, pages, custom content types (attachments excluded, caught in previous clause)
// Note: content might be multipage. Process with amt_process_paged() wherever needed.
} elseif (is_singular()) {
// Site Name
$metadata_arr[] = '<meta property="og:site_name" content="' . esc_attr(get_bloginfo('name')) . '" />';
// Type
// og:type set to 'video.other' for posts with post format set to video
if (get_post_format($post->ID) == 'video') {
$og_type = 'video.other';
// og:type set to 'product' if amt_is_product() validates
// See:
// * https://developers.facebook.com/docs/reference/opengraph/object-type/product/
// * https://developers.facebook.com/docs/payments/product
} elseif (amt_is_product()) {
$og_type = 'product';
// In any other case 'article' is used as the og:type
} else {
$og_type = 'article';
}
// Allow filtering of og:type
$og_type = apply_filters('amt_opengraph_og_type_content', $og_type);
// Set og:type meta tag.
$metadata_arr[] = '<meta property="og:type" content="' . esc_attr($og_type) . '" />';
// Title
// Note: Contains multipage information
$metadata_arr['og:title'] = '<meta property="og:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr[] = '<meta property="og:url" content="' . esc_url_raw(amt_get_permalink_for_multipage($post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta property="og:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// Locale
$metadata_arr[] = '<meta property="og:locale" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />';
// og:updated_time
$metadata_arr[] = '<meta property="og:updated_time" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />';
// Image
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_attributes_array(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $global_image_override_url ) ) . '" />';
// }
// Further image processing
} else {
// Media Limits
$image_limit = amt_metadata_get_image_limit($options);
$video_limit = amt_metadata_get_video_limit($options);
$audio_limit = amt_metadata_get_audio_limit($options);
// Counters
$ic = 0;
// image counter
$vc = 0;
// video counter
$ac = 0;
// audio counter
// We store the featured image ID in this variable so that it can easily be excluded
// when all images are parsed from the $attachments array.
$featured_image_id = 0;
// Set to true if any image attachments are found. Use to finally add the default image
// if no image attachments have been found.
$has_images = false;
if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_content', 'full');
$metadata_arr = array_merge($metadata_arr, amt_get_opengraph_image_metatags($options, get_post_thumbnail_id($post->ID), $size = $image_size));
// Finally, set the $featured_image_id
$featured_image_id = get_post_thumbnail_id($post->ID);
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
}
// Process all attachments and add metatags (featured image will be excluded)
foreach ($attachments as $attachment) {
// Excluded the featured image since
if ($attachment->ID != $featured_image_id) {
$mime_type = get_post_mime_type($attachment->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
if ('image' == $attachment_type && $ic < $image_limit) {
// Image tags
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_content', 'full');
$metadata_arr = array_merge($metadata_arr, amt_get_opengraph_image_metatags($options, $attachment->ID, $size = $image_size));
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
} elseif ('video' == $attachment_type && $vc < $video_limit) {
if ($options["og_omit_video_metadata"] != "1") {
// Video tags
$metadata_arr[] = '<meta property="og:video" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />';
if (is_ssl() || !is_ssl() && $options["has_https_access"] == "1") {
$metadata_arr[] = '<meta property="og:video:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', wp_get_attachment_url($attachment->ID))) . '" />';
}
//$metadata_arr[] = '<meta property="og:video:width" content="' . esc_attr( $main_size_meta[1] ) . '" />';
//$metadata_arr[] = '<meta property="og:video:height" content="' . esc_attr( $main_size_meta[2] ) . '" />';
$metadata_arr[] = '<meta property="og:video:type" content="' . esc_attr($mime_type) . '" />';
// Increase video counter
$vc++;
}
} elseif ('audio' == $attachment_type && $ac < $audio_limit) {
// Audio tags
$metadata_arr[] = '<meta property="og:audio" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />';
if (is_ssl() || !is_ssl() && $options["has_https_access"] == "1") {
$metadata_arr[] = '<meta property="og:audio:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', wp_get_attachment_url($attachment->ID))) . '" />';
}
$metadata_arr[] = '<meta property="og:audio:type" content="' . esc_attr($mime_type) . '" />';
// Increase audio counter
$ac++;
}
}
}
// Embedded Media
foreach ($embedded_media['images'] as $embedded_item) {
if ($ic == $image_limit) {
break;
}
$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw($embedded_item['image']) . '" />';
$metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', $embedded_item['image'])) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta property="og:image:width" content="' . esc_attr($embedded_item['width']) . '" />';
$metadata_arr[] = '<meta property="og:image:height" content="' . esc_attr($embedded_item['height']) . '" />';
$metadata_arr[] = '<meta property="og:image:type" content="image/jpeg" />';
}
// Images have been found.
$has_images = true;
// Increase image counter
$ic++;
}
foreach ($embedded_media['videos'] as $embedded_item) {
if ($options["og_omit_video_metadata"] != "1") {
if ($vc == $video_limit) {
break;
}
$metadata_arr[] = '<meta property="og:video" content="' . esc_url_raw($embedded_item['player']) . '" />';
$metadata_arr[] = '<meta property="og:video:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', $embedded_item['player'])) . '" />';
$metadata_arr[] = '<meta property="og:video:type" content="application/x-shockwave-flash" />';
$metadata_arr[] = '<meta property="og:video:width" content="' . esc_attr($embedded_item['width']) . '" />';
$metadata_arr[] = '<meta property="og:video:height" content="' . esc_attr($embedded_item['height']) . '" />';
// Increase video counter
$vc++;
}
}
foreach ($embedded_media['sounds'] as $embedded_item) {
if ($ac == $audio_limit) {
break;
}
$metadata_arr[] = '<meta property="og:audio" content="' . esc_url_raw($embedded_item['player']) . '" />';
$metadata_arr[] = '<meta property="og:audio:secure_url" content="' . esc_url_raw(str_replace('http:', 'https:', $embedded_item['player'])) . '" />';
$metadata_arr[] = '<meta property="og:audio:type" content="application/x-shockwave-flash" />';
// Increase audio counter
$ac++;
}
// If no images have been found so far use the default image, if set.
if ($has_images === false) {
// Use the default image, if one has been set.
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta property="og:image" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
//if ( is_ssl() || ( ! is_ssl() && $options["has_https_access"] == "1" ) ) {
// $metadata_arr[] = '<meta property="og:image:secure_url" content="' . esc_url_raw( str_replace('http:', 'https:', $options["default_image_url"] ) ) . '" />';
//}
}
}
// og:referenced
$referenced_url_list = amt_get_referenced_items($post);
foreach ($referenced_url_list as $referenced_url) {
$referenced_url = trim($referenced_url);
if (!empty($referenced_url)) {
$metadata_arr[] = '<meta property="og:referenced" content="' . esc_url_raw($referenced_url) . '" />';
}
}
// Article: meta tags
if ($og_type == 'article') {
// Dates
$metadata_arr[] = '<meta property="article:published_time" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />';
$metadata_arr[] = '<meta property="article:modified_time" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />';
// Author
// If a Facebook author profile URL has been provided, it has priority,
// Otherwise fall back to the WordPress author archive.
$fb_author_url = get_the_author_meta('amt_facebook_author_profile_url', $post->post_author);
if (!empty($fb_author_url)) {
$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw($fb_author_url, array('http', 'https', 'mailto')) . '" />';
} else {
//$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw( get_author_posts_url( get_the_author_meta( 'ID', $post->post_author ) ) ) . '" />';
$metadata_arr[] = '<meta property="article:author" content="' . esc_url_raw(amt_get_local_author_profile_url(get_the_author_meta('ID', $post->post_author), $options)) . '" />';
}
// Publisher
// If a Facebook publisher profile URL has been provided, it has priority.
// Otherwise fall back to the WordPress blog home url.
if (!empty($options['social_main_facebook_publisher_profile_url'])) {
$metadata_arr[] = '<meta property="article:publisher" content="' . esc_url_raw($options['social_main_facebook_publisher_profile_url'], array('http', 'https', 'mailto')) . '" />';
} else {
$metadata_arr[] = '<meta property="article:publisher" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />';
}
/*
// article:section: We use the first category as the section.
$first_cat = amt_get_first_category($post);
if ( ! empty( $first_cat ) ) {
$metadata_arr[] = '<meta property="article:section" content="' . esc_attr( $first_cat ) . '" />';
}
*/
// article:section: We use print an ``article:section`` meta tag for each of the post's categories.
$categories = get_the_category($post->ID);
$categories = apply_filters('amt_post_categories_for_opengraph', $categories);
foreach ($categories as $cat) {
$section = trim($cat->cat_name);
if (!empty($section) && $cat->slug != 'uncategorized') {
$metadata_arr[] = '<meta property="article:section" content="' . esc_attr($section) . '" />';
}
}
// article:tag: Keywords are listed as post tags
$keywords = explode(',', amt_get_content_keywords($post, $auto = true, $exclude_categories = true));
foreach ($keywords as $tag) {
$tag = trim($tag);
if (!empty($tag)) {
$metadata_arr[] = '<meta property="article:tag" content="' . esc_attr($tag) . '" />';
}
}
} elseif ($og_type == 'video.other') {
// Dates
$metadata_arr[] = '<meta property="video:release_date" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />';
// video:tag: Keywords are listed as post tags
$keywords = explode(',', amt_get_content_keywords($post));
foreach ($keywords as $tag) {
$tag = trim($tag);
if (!empty($tag)) {
$metadata_arr[] = '<meta property="video:tag" content="' . esc_attr($tag) . '" />';
}
}
} elseif ($og_type == 'product') {
// Extend the current metadata with properties of the Product object.
// See:
// * https://developers.facebook.com/docs/reference/opengraph/object-type/product/
// * https://developers.facebook.com/docs/payments/product
$metadata_arr = apply_filters('amt_product_data_opengraph', $metadata_arr, $post);
}
}
// Filtering of the generated Opengraph metadata
$metadata_arr = apply_filters('amt_opengraph_metadata_head', $metadata_arr);
return $metadata_arr;
}
/**
* Generates basic metadata for the head area.
*
*/
function amt_add_basic_metadata_head($post, $attachments, $embedded_media, $options)
{
if (apply_filters('amt_exclude_basic_metadata', false)) {
return array();
}
$do_description = $options["auto_description"] == "1" ? true : false;
$do_keywords = $options["auto_keywords"] == "1" ? true : false;
$do_noodp_description = $options["noodp_description"] == "1" ? true : false;
// Array to store metadata
$metadata_arr = array();
// Pre-processing
// Store hreflang links in array
$hreflang_links_arr = array();
// Store base robots options
$robots_options = array();
if ($do_noodp_description && (is_front_page() || is_singular() || is_category() || is_tag() || is_tax() || is_author())) {
// Add NOODP on posts and pages
$robots_options[] = 'noodp';
$robots_options[] = 'noydir';
}
// Store full meta tags (site wide and post specific)
// Add site wide meta tags
$full_metatags_as_string = '';
if (!empty($options['site_wide_meta'])) {
$full_metatags_for_site = html_entity_decode(stripslashes($options['site_wide_meta']));
$full_metatags_as_string .= apply_filters('amt_full_metatags_site', $full_metatags_for_site);
$full_metatags_as_string .= PHP_EOL;
}
// Full meta tags
if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
// per post full meta tags
$full_metatags_for_content = amt_get_post_meta_full_metatags($post->ID);
$full_metatags_for_content = html_entity_decode(stripslashes($full_metatags_for_content));
$full_metatags_as_string .= apply_filters('amt_full_metatags_post', $full_metatags_for_content);
} elseif (is_category() || is_tag() || is_tax()) {
// Term specific full meta tags ($post is a term object)
$full_metatags_for_term = amt_get_term_meta_full_metatags($post->term_id);
$full_metatags_for_term = html_entity_decode(stripslashes($full_metatags_for_term));
$full_metatags_as_string .= apply_filters('amt_full_metatags_term', $full_metatags_for_term);
} elseif (is_author()) {
// User specific full meta tags ($post is a user object)
$full_metatags_for_user = amt_get_user_meta_full_metatags($post->ID);
$full_metatags_for_user = html_entity_decode(stripslashes($full_metatags_for_user));
$full_metatags_as_string .= apply_filters('amt_full_metatags_term', $full_metatags_for_user);
}
// Sanitize
//$full_metatags_as_string = esc_textarea( wp_kses( $full_metatags_as_string, amt_get_allowed_html_kses() ) );
$full_metatags_as_string = wp_kses($full_metatags_as_string, amt_get_allowed_html_kses());
// Make array of full meta tags
$full_meta_tags = preg_split('#\\R#', $full_metatags_as_string, NULL, PREG_SPLIT_NO_EMPTY);
// Process
if (apply_filters('amt_full_metatags_processor_enable', true)) {
// Store processed meta tags here
$processed_full_meta_tags = array();
// Field substitutions currently take place only on content pages.
// TODO: See if this can be expanded to terms, authors.
// Store the post's custom fields
$custom_fields = null;
// Store the post object's custom fields.
//
if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
// Get an array of all custom fields names of the post object.
$custom_fields = get_post_custom_keys($post->ID);
}
// Iterate over full meta tags
foreach ($full_meta_tags as $single_meta_tag) {
// Note: Field value substitutions take place first, outside the elseif clauses.
// Process substitutions of special notation with data from Custom Fields
// Supported special notation:
// [field=Field Name]
// Notes:
// - 'Field Name' is the name of custom field.
// - If the custom field with name 'Field Name' does not exist, the meta tag
// that contains it is omitted.
// - If the value of the field is an empty string, then the substitution
// takes place normally.
//
// The regex pattern fo our special notation.
$special_notation_pattern = '#(?:\\[field\\=)([^\\]]+)(?:\\])#';
// The following covers content pages, as $custom_fields is only set on content pages. See above.
if (!empty($custom_fields) && isset($post->ID)) {
// This also assumes that we have a post object since custom fields
// are set only on content pages, otherwise it is null.
// Check for special notation
if (preg_match($special_notation_pattern, $single_meta_tag, $matches)) {
//var_dump($matches);
// If the field name of the special notation does not match
// any custom field name, omit the meta tag as per the rules above.
if (!in_array($matches[1], $custom_fields)) {
continue;
}
// Since there is special notation and the field name from the special
// notation exists in the $custom_fields array, iterate over the available
// custom fields and perform the substitutions.
foreach ($custom_fields as $custom_field) {
// Check if it matches the field name of the special notation
if ($custom_field == $matches[1]) {
// Fetch the custom field's value
$field_value = get_post_meta($post->ID, $custom_field, true);
// Sanitize value
// TODO: this can be a problem depending on the value and the used sanitization function.
$field_value = esc_attr(sanitize_text_field($field_value));
// Perform the substitution even if the the value is an empty string as per the rules above
$single_meta_tag = str_replace(sprintf('[field=%s]', $custom_field), $field_value, $single_meta_tag);
}
}
}
} else {
// In any other case, just remove the meta tags which contain the special notation.
if (preg_match($special_notation_pattern, $single_meta_tag, $tmp)) {
continue;
}
}
// Process the PAGEINFO variable.
// If the current page is the 1st page of any archive or of multipage content,
// PAGEINFO is just stripped. For subsequent pages of archives or multipage
// content, PAGEINFO is replaced with page based path (page/N/ for archives or N/ for multipage content)
//
// For paginated archives or paginated main page with latest posts.
$has_paging_info = false;
if (is_paged()) {
$paged = get_query_var('paged');
// paged
if ($paged && $paged >= 2) {
$single_meta_tag = str_replace('PAGEINFO', 'page/' . $paged . '/', $single_meta_tag);
$has_paging_info = true;
}
// For a Post or Page that has been divided into pages using the <!--nextpage--> QuickTag
} else {
$paged = get_query_var('page');
// page
if ($paged && $paged >= 2) {
$single_meta_tag = str_replace('PAGEINFO', $paged . '/', $single_meta_tag);
$has_paging_info = true;
}
}
// If this is not paged, strip PAGEINFO
if ($has_paging_info === false) {
$single_meta_tag = str_replace('PAGEINFO', '', $single_meta_tag);
}
// Process custom canonical link
// If a rel="canonical" meta tags exists, we deactivate WordPress' 'rel_canonical' action,
// Since it is assumed that a custom canonical link has been added.
//if ( preg_match( '# rel="canonical" #', $post_full_meta_tags, $tmp ) ) {
if (strpos($single_meta_tag, ' rel="canonical" ') !== false) {
// Remove default WordPress action
remove_action('wp_head', 'rel_canonical');
} elseif (strpos($single_meta_tag, ' name="robots" ') !== false) {
if (preg_match('# content="([^"]+)" #', $single_meta_tag, $matches)) {
$tmp_robots_opts = explode(',', $matches[1]);
foreach ($tmp_robots_opts as $single_robots_option) {
$single_robots_option_cleaned = strtolower(trim($single_robots_option));
if (!empty($single_robots_option_cleaned)) {
$robots_options[] = $single_robots_option_cleaned;
}
}
}
// We simply collect options. Do not add any robots meta tags to the processed meta tags array.
continue;
} elseif (strpos($single_meta_tag, ' hreflang="') !== false) {
// Simply add to the hreflang links array for later processing
$hreflang_links_arr[] = $single_meta_tag;
// We simply collect hreflang links for later processing. Do not add them to the processed meta tags array.
continue;
}
// If we have reached here, add the meta tags to the array with processed meta tags.
$processed_full_meta_tags[] = $single_meta_tag;
}
} else {
// Full meta tags processor not enabled
$processed_full_meta_tags = $full_meta_tags;
}
//var_dump($full_meta_tags);
//var_dump($processed_full_meta_tags);
// Add Meta Tags
// Add a robots meta tag if robots options exist.
// Backwards compatible filter. TODO: This is deprecated. Needs to be deleted after a while.
$old_options_as_string = apply_filters('amt_robots_data', '');
if (!empty($old_options_as_string)) {
foreach (explode(',', $old_options_as_string) as $single_robots_option) {
$single_robots_option_cleaned = strtolower(trim($single_robots_option));
if (!empty($single_robots_option_cleaned)) {
$robots_options[] = $single_robots_option_cleaned;
}
}
}
// Add robot_options filtering
$robots_options = apply_filters('amt_robots_options', $robots_options);
if (version_compare(PHP_VERSION, '5.3', '<')) {
// The flag is not supported
$robots_options = array_unique($robots_options);
} else {
$robots_options = array_unique($robots_options, SORT_STRING);
}
if (!empty($robots_options)) {
$metadata_arr['basic:robots'] = '<meta name="robots" content="' . esc_attr(implode(',', $robots_options)) . '" />';
}
// Add full meta tags
// Merge meta tags
$processed_full_meta_tags = apply_filters('amt_full_metatags_processed', $processed_full_meta_tags);
if (!empty($processed_full_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $processed_full_meta_tags);
}
// Add copyright link
// On every page print the copyright head link
$copyright_url = amt_get_site_copyright_url($options);
//if ( empty($copyright_url)) {
// $copyright_url = trailingslashit( get_bloginfo('url') );
//}
if (!empty($copyright_url)) {
$metadata_arr['basic:copyright'] = '<link rel="copyright" type="text/html" title="' . esc_attr(get_bloginfo('name')) . ' ' . __('copyright information', 'add-meta-tags') . '" href="' . esc_url($copyright_url) . '" />';
}
// hreflang link element
// This section also expects an array of extra hreflang links that may have
// been collected from the full meta tags boxes.
if ($options['generate_hreflang_links'] == '1') {
if (is_singular()) {
$locale = amt_get_language_content($options, $post);
$hreflang = amt_get_the_hreflang($locale, $options);
$hreflang_url = amt_get_permalink_for_multipage($post);
} else {
$locale = amt_get_language_site($options);
$hreflang = amt_get_the_hreflang($locale, $options);
$hreflang_url = '';
if (amt_is_default_front_page()) {
$hreflang_url = trailingslashit(get_bloginfo('url'));
} elseif (is_category() || is_tag() || is_tax()) {
// $post is a term object
$hreflang_url = get_term_link($post);
} elseif (is_author()) {
// $post is an author object
$hreflang_url = get_author_posts_url($post->ID);
} elseif (is_year()) {
$archive_year = get_the_time('Y');
$hreflang_url = get_year_link($archive_year);
} elseif (is_month()) {
$archive_year = get_the_time('Y');
$archive_month = get_the_time('m');
$hreflang_url = get_month_link($archive_year, $archive_month);
} elseif (is_day()) {
$archive_year = get_the_time('Y');
$archive_month = get_the_time('m');
$archive_day = get_the_time('d');
$hreflang_url = get_day_link($archive_year, $archive_month, $archive_day);
}
// If paged information is available
if (is_paged()) {
//$hreflang_url = trailingslashit( $hreflang_url ) . get_query_var('paged') . '/';
$hreflang_url = get_pagenum_link(get_query_var('paged'));
}
}
// hreflang links array
$hreflang_arr = array();
// Add link element
if (!empty($hreflang) && !empty($hreflang_url)) {
$hreflang_arr[] = '<link rel="alternate" hreflang="' . esc_attr($hreflang) . '" href="' . esc_url_raw($hreflang_url) . '" />';
}
// Add extra hreflang links that have been collected from the full meta tags boxes
if (!empty($hreflang_links_arr)) {
$hreflang_arr = array_merge($hreflang_arr, $hreflang_links_arr);
}
// Allow filtering of the hreflang array
$hreflang_arr = apply_filters('amt_hreflang_links', $hreflang_arr);
// Add to to metadata array
foreach ($hreflang_arr as $hreflang_link) {
if (preg_match('# hreflang="([^"]+)" #', $hreflang_link, $matches)) {
$metadata_arr['basic:hreflang:' . $matches[1]] = $hreflang_link;
}
}
}
// Basic Meta Tags
// Custom content override
if (amt_is_custom($post, $options)) {
// Return metadata with:
// add_filter( 'amt_custom_metadata_basic', 'my_function', 10, 5 );
// Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />'
$metadata_arr = apply_filters('amt_custom_metadata_basic', $metadata_arr, $post, $options, $attachments, $embedded_media);
// Default front page displaying latest posts
} elseif (amt_is_default_front_page()) {
// Description and Keywords from the Add-Meta-Tags settings override
// default behaviour.
// Description
if ($do_description) {
// Use the site description from the Add-Meta-Tags settings.
// Fall back to the blog description.
$site_description = amt_get_site_description($options);
if (empty($site_description)) {
// Alternatively, use the blog description
// Here we sanitize the provided description for safety
$site_description = sanitize_text_field(amt_sanitize_description(get_bloginfo('description')));
}
// If we have a description, use it in the description meta-tag of the front page
if (!empty($site_description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($site_description)) . '" />';
}
}
// Keywords
if ($do_keywords) {
// Use the site keywords from the Add-Meta-Tags settings.
// Fall back to the blog categories.
$site_keywords = amt_get_site_keywords($options);
if (empty($site_keywords)) {
// Alternatively, use the blog categories
// Here we sanitize the provided keywords for safety
$site_keywords = sanitize_text_field(amt_sanitize_keywords(amt_get_all_categories()));
}
// If we have keywords, use them in the keywords meta-tag of the front page
if (!empty($site_keywords)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($site_keywords) . '" />';
}
}
// Attachments
} elseif (is_attachment()) {
// has to be before is_singular() since is_singular() is true for attachments.
// Description
if ($do_description) {
$description = amt_get_content_description($post, $auto = $do_description);
if (!empty($description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($description)) . '" />';
}
}
// No keywords
// Content pages and static pages used as "front page" and "posts page"
// This also supports products via is_singular()
} elseif (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
// Description
if ($do_description) {
$description = amt_get_content_description($post, $auto = $do_description);
if (!empty($description)) {
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($description)) . '" />';
}
}
// Keywords
if ($do_keywords) {
$keywords = amt_get_content_keywords($post, $auto = $do_keywords);
if (!empty($keywords)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($keywords) . '" />';
// Static Posts Index Page
// If no keywords have been set in the metabox and this is the static page,
// which displayes the latest posts, use the categories of the posts in the loop.
} elseif (amt_is_static_home()) {
// Here we sanitize the provided keywords for safety
$cats_from_loop = sanitize_text_field(amt_sanitize_keywords(implode(', ', amt_get_categories_from_loop())));
if (!empty($cats_from_loop)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cats_from_loop) . '" />';
}
}
}
// 'news_keywords'
$newskeywords = amt_get_post_meta_newskeywords($post->ID);
if (!empty($newskeywords)) {
$metadata_arr['basic:news_keywords'] = '<meta name="news_keywords" content="' . esc_attr($newskeywords) . '" />';
}
// Category based archives
} elseif (is_category()) {
if ($do_description) {
// If set, the description of the category is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(category_description()));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_category_archive', __('Content filed under the %s category.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_cat_title($prefix = '', $display = false));
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The category name alone is included in the 'keywords' metatag
// Here we sanitize the provided keywords for safety
$cur_cat_name = sanitize_text_field(amt_sanitize_keywords(single_cat_title($prefix = '', $display = false)));
if (!empty($cur_cat_name)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cur_cat_name) . '" />';
}
}
} elseif (is_tag()) {
if ($do_description) {
// If set, the description of the tag is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(tag_description()));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_tag_archive', __('Content tagged with %s.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_tag_title($prefix = '', $display = false));
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The tag name alone is included in the 'keywords' metatag
// Here we sanitize the provided keywords for safety
$cur_tag_name = sanitize_text_field(amt_sanitize_keywords(single_tag_title($prefix = '', $display = false)));
if (!empty($cur_tag_name)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cur_tag_name) . '" />';
}
}
// Custom taxonomies - Should be after is_category() and is_tag(), as it would catch those taxonomies as well.
// This also supports product groups via is_tax(). Only product groups that are WordPress custom taxonomies are supported.
} elseif (is_tax()) {
// Taxonomy term object.
// When viewing taxonomy archives, the $post object is the taxonomy term object. Check with: var_dump($post);
$tax_term_object = $post;
//var_dump($tax_term_object);
if ($do_description) {
// If set, the description of the custom taxonomy term is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(term_description($tax_term_object->term_id, $tax_term_object->taxonomy)));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
// Construct the filter name. Template: ``amt_generic_description_TAXONOMYSLUG_archive``
$taxonomy_description_filter_name = sprintf('amt_generic_description_%s_archive', $tax_term_object->taxonomy);
// var_dump($taxonomy_description_filter_name);
$generic_description = apply_filters($taxonomy_description_filter_name, __('Content filed under the %s taxonomy.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, single_term_title($prefix = '', $display = false));
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
}
if ($do_keywords) {
// The taxonomy term name alone is included in the 'keywords' metatag.
// Here we sanitize the provided keywords for safety.
$cur_tax_term_name = sanitize_text_field(amt_sanitize_keywords(single_term_title($prefix = '', $display = false)));
if (!empty($cur_tax_term_name)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cur_tax_term_name) . '" />';
}
}
} elseif (is_author()) {
// Author object
// NOTE: Inside the author archives `$post->post_author` does not contain the author object.
// In this case the $post (get_queried_object()) contains the author object itself.
// We also can get the author object with the following code. Slug is what WP uses to construct urls.
// $author = get_user_by( 'slug', get_query_var( 'author_name' ) );
// Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives.
// Access user meta with: $author->description, $author->user_email, etc
// $author = get_queried_object();
$author = $post;
// If a bio has been set in the user profile, use it in the description metatag of the
// first page of the author archive *ONLY*. The other pages of the author archive use a generic description.
// This happens because the 1st page of the author archive is considered the profile page
// by the other metadata modules.
// Otherwise use a generic meta tag.
if ($do_description) {
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field(amt_sanitize_description($author->description));
if (empty($author_description) || is_paged()) {
// Note: Contains multipage information through amt_process_paged()
// Add a filtered generic description.
$generic_description = apply_filters('amt_generic_description_author_archive', __('Content published by %s.', 'add-meta-tags'));
$generic_description = sprintf($generic_description, $author->display_name);
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr($author_description) . '" />';
}
}
// For the keywords metatag use the categories of the posts the author has written and are displayed in the current page.
if ($do_keywords) {
// Here we sanitize the provided keywords for safety
$cats_from_loop = sanitize_text_field(amt_sanitize_keywords(implode(', ', amt_get_categories_from_loop())));
if (!empty($cats_from_loop)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cats_from_loop) . '" />';
}
}
// Custom Post Type Archive
} elseif (is_post_type_archive()) {
// Custom post type object.
// When viewing custom post type archives, the $post object is the custom post type object. Check with: var_dump($post);
$post_type_object = $post;
//var_dump($post_type_object);
if ($do_description) {
// Description
// Note: Contains multipage information through amt_process_paged()
// Add a filtered generic description.
// Construct the filter name. Template: ``amt_generic_description_posttype_POSTTYPESLUG_archive``
$custom_post_type_description_filter_name = sprintf('amt_generic_description_posttype_%s_archive', $post_type_object->name);
// var_dump($custom_post_type_description_filter_name);
// Generic description
$generic_description = apply_filters($custom_post_type_description_filter_name, __('%s archive.', 'add-meta-tags'));
// Final generic description
$generic_description = sprintf($generic_description, post_type_archive_title($prefix = '', $display = false));
$metadata_arr['basic:description'] = '<meta name="description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
}
// For the keywords metatag use the categories of the posts that are listed in the current page.
if ($do_keywords) {
// Here we sanitize the provided keywords for safety
$cats_from_loop = sanitize_text_field(amt_sanitize_keywords(implode(', ', amt_get_categories_from_loop())));
if (!empty($cats_from_loop)) {
$metadata_arr['basic:keywords'] = '<meta name="keywords" content="' . esc_attr($cats_from_loop) . '" />';
}
}
}
// Filtering of the generated basic metadata
$metadata_arr = apply_filters('amt_basic_metadata_head', $metadata_arr);
return $metadata_arr;
}
/**
* Generate Twitter Cards metadata for the content pages.
*/
function amt_add_twitter_cards_metadata_head($post, $attachments, $embedded_media, $options)
{
if (apply_filters('amt_exclude_twitter_cards_metadata', false)) {
return array();
}
$do_auto_twitter = $options["auto_twitter"] == "1" ? true : false;
if (!$do_auto_twitter) {
return array();
}
$metadata_arr = array();
// Custom content override
if (amt_is_custom($post, $options)) {
// Return metadata with:
// add_filter( 'amt_custom_metadata_twitter_cards', 'my_function', 10, 5 );
// Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />'
$metadata_arr = apply_filters('amt_custom_metadata_twitter_cards', $metadata_arr, $post, $options, $attachments, $embedded_media);
return $metadata_arr;
}
// Front page and archives
if (!is_singular() && !amt_is_static_home() && !amt_is_static_front_page() || amt_is_default_front_page() || is_category() || is_tag() || is_tax() || is_post_type_archive()) {
// Note1: is_front_page() is used for the case in which a static page is used as the front page.
// Note2: product groups should pass the is_tax() validation, so no need for
// amt_is_product_group(). We do not support other product groups.
// Default front page containing latest posts
// Add a basic Twitter Card to the default home page that contains latest posts.
// If static pages are used as the front page or the latest-posts page,
// then they are treated as content and are processed below.
if (amt_is_default_front_page()) {
// Generate the card only if a publisher username has been set in the publisher settings
if (!empty($options['social_main_twitter_publisher_username'])) {
// Type
$metadata_arr[] = '<meta name="twitter:card" content="' . amt_get_default_twitter_card_type($options) . '" />';
// Creator
$metadata_arr[] = '<meta name="twitter:creator" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Publisher
$metadata_arr[] = '<meta name="twitter:site" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Title
// Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Site description - Note: Contains multipage information through amt_process_paged()
$site_description = amt_get_site_description($options);
if (empty($site_description)) {
$site_description = get_bloginfo('description');
}
if (!empty($site_description)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($site_description)) . '" />';
}
// Image. Use the default image (if set).
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$image_url = apply_filters( 'amt_twitter_cards_image_url_index', $options["default_image_url"] );
//$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $image_url ) . '" />';
}
// Taxonomy archives
// Note: product groups should pass the is_tax() validation, so no need for
// amt_is_product_group(). We do not support other product groups.
} elseif (is_category() || is_tag() || is_tax()) {
// Taxonomy term object.
// When viewing taxonomy archives, the $post object is the taxonomy term object. Check with: var_dump($post);
$tax_term_object = $post;
//var_dump($tax_term_object);
// Generate the card only if a publisher username has been set in the publisher settings
if (!empty($options['social_main_twitter_publisher_username'])) {
// Type
$metadata_arr[] = '<meta name="twitter:card" content="' . amt_get_default_twitter_card_type($options) . '" />';
// Creator
$metadata_arr[] = '<meta name="twitter:creator" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Publisher
$metadata_arr[] = '<meta name="twitter:site" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Title
// Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description
// If set, the description of the custom taxonomy term is used in the 'description' metatag.
// Otherwise, a generic description is used.
// Here we sanitize the provided description for safety
$description_content = sanitize_text_field(amt_sanitize_description(term_description($tax_term_object->term_id, $tax_term_object->taxonomy)));
// Note: Contains multipage information through amt_process_paged()
if (empty($description_content)) {
// Add a filtered generic description.
// Filter name
if (is_category()) {
$generic_description = apply_filters('amt_generic_description_category_archive', __('Content filed under the %s category.', 'add-meta-tags'));
} elseif (is_tag()) {
$generic_description = apply_filters('amt_generic_description_tag_archive', __('Content tagged with %s.', 'add-meta-tags'));
} elseif (is_tax()) {
// Construct the filter name. Template: ``amt_generic_description_TAXONOMYSLUG_archive``
$taxonomy_description_filter_name = sprintf('amt_generic_description_%s_archive', $tax_term_object->taxonomy);
// var_dump($taxonomy_description_filter_name);
// Generic description
$generic_description = apply_filters($taxonomy_description_filter_name, __('Content filed under the %s taxonomy.', 'add-meta-tags'));
}
// Final generic description
$generic_description = sprintf($generic_description, single_term_title($prefix = '', $display = false));
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
} else {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($description_content)) . '" />';
}
// Image
// Use an image from the 'Global image override' field.
// Otherwise, use a user defined image via filter.
// Otherwise use default image.
$image_data = amt_get_image_data(amt_get_term_meta_image_url($tax_term_object->term_id));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
} else {
// First filter using a term/taxonomy agnostic filter name.
$taxonomy_image_url = apply_filters('amt_taxonomy_force_image_url', '', $tax_term_object);
if (empty($taxonomy_image_url)) {
// Second filter (term/taxonomy dependent).
// Construct the filter name. Template: ``amt_taxonomy_image_url_TAXONOMYSLUG_TERMSLUG``
$taxonomy_image_url_filter_name = sprintf('amt_taxonomy_image_url_%s_%s', $tax_term_object->taxonomy, $tax_term_object->slug);
//var_dump($taxonomy_image_url_filter_name);
// The default image, if set, is used by default.
$taxonomy_image_url = apply_filters($taxonomy_image_url_filter_name, $options["default_image_url"]);
}
if (!empty($taxonomy_image_url)) {
$image_data = amt_get_image_data($taxonomy_image_url);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $taxonomy_image_url ) . '" />';
}
}
}
// Custom Post type Archives
} elseif (is_post_type_archive()) {
// Custom post type object.
// When viewing custom post type archives, the $post object is the custom post type object. Check with: var_dump($post);
$post_type_object = $post;
//var_dump($post_type_object);
// Generate the card only if a publisher username has been set in the publisher settings
if (!empty($options['social_main_twitter_publisher_username'])) {
// Type
$metadata_arr[] = '<meta name="twitter:card" content="' . amt_get_default_twitter_card_type($options) . '" />';
// Creator
$metadata_arr[] = '<meta name="twitter:creator" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Publisher
$metadata_arr[] = '<meta name="twitter:site" content="@' . esc_attr($options['social_main_twitter_publisher_username']) . '" />';
// Title
// Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description
// Note: Contains multipage information through amt_process_paged()
// Add a filtered generic description.
// Construct the filter name. Template: ``amt_generic_description_posttype_POSTTYPESLUG_archive``
$custom_post_type_description_filter_name = sprintf('amt_generic_description_posttype_%s_archive', $post_type_object->name);
// var_dump($custom_post_type_description_filter_name);
// Generic description
$generic_description = apply_filters($custom_post_type_description_filter_name, __('%s archive.', 'add-meta-tags'));
// Final generic description
$generic_description = sprintf($generic_description, post_type_archive_title($prefix = '', $display = false));
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($generic_description)) . '" />';
// Image
// Use a user defined image via filter. Otherwise use default image.
// First filter using a term/taxonomy agnostic filter name.
$posttype_image_url = apply_filters('amt_posttype_force_image_url', '', $post_type_object);
if (empty($posttype_image_url)) {
// Second filter (post type dependent).
// Construct the filter name. Template: ``amt_posttype_image_url_POSTTYPESLUG``
$posttype_image_url_filter_name = sprintf('amt_posttype_image_url_%s', $post_type_object->name);
//var_dump($posttype_image_url_filter_name);
// The default image, if set, is used by default.
$posttype_image_url = apply_filters($posttype_image_url_filter_name, $options["default_image_url"]);
}
if (!empty($posttype_image_url)) {
$image_data = amt_get_image_data($posttype_image_url);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $posttype_image_url ) . '" />';
}
}
}
return $metadata_arr;
}
// Further check (required in some reported cases)
// Go no further if the content type does not validate is_singular().
if (!is_singular()) {
return array();
}
// Products
// A 'product' Twitter Card is generated. See: https://dev.twitter.com/cards/types/product
if (amt_is_product()) {
// Type
$metadata_arr[] = '<meta name="twitter:card" content="product" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// Title
// Note: Contains multipage information
//$metadata_arr[] = '<meta name="twitter:title" content="' . esc_attr( amt_process_paged( strip_tags( get_the_title($post->ID) ) ) ) . '" />';
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// Image
// Use the featured image or the default image as a fallback.
// Set to true if image meta tags have been added to the card, so that it does not
// search for any more images.
$image_metatags_added = false;
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_product', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( $image_metatags_added === false && ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// Images have been found.
$image_metatags_added = true;
}
// Set the image size to use
$image_size = apply_filters('amt_image_size_product', 'full');
// If the content has a featured image, then we use it.
if ($image_metatags_added === false && function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
$main_size_meta = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw($main_size_meta[0]) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr($main_size_meta[1]) . '" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr($main_size_meta[2]) . '" />';
}
// Images have been found.
$image_metatags_added = true;
}
// If an image is still missing, then use the default image (if set).
if ($image_metatags_added === false) {
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
//$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
}
//
// The Product Twitter Card needs to be extended with the following required
// in order to be valid: label1, data1, label2, data2
//
// For instance:
//<meta name="twitter:label1" content="Genre">
//<meta name="twitter:data1" content="Classic Rock">
//<meta name="twitter:label2" content="Location">
//<meta name="twitter:data2" content="National">
//
// The following filter is provided.
// Filtering of the generated Twitter Cards metadata. $post is also passed.
$metadata_arr = apply_filters('amt_product_data_twitter_cards', $metadata_arr, $post);
// Attachments
} elseif (is_attachment()) {
$mime_type = get_post_mime_type($post->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
// Images
if ('image' == $attachment_type) {
// $post is an image attachment
// Image attachments
//$image_meta = wp_get_attachment_metadata( $post->ID ); // contains info about all sizes
// We use wp_get_attachment_image_src() since it constructs the URLs
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_attachment', 'full');
$main_size_meta = wp_get_attachment_image_src($post->ID, $image_size);
// Type
$metadata_arr[] = '<meta name="twitter:card" content="photo" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// Title
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr($content_desc) . '" />';
}
// Image
$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw($main_size_meta[0]) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr($main_size_meta[1]) . '" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr($main_size_meta[2]) . '" />';
}
// Audio & Video
} elseif ($options["tc_enable_player_card_local"] == "1" && in_array($attachment_type, array('video', 'audio'))) {
// Create player card for local video and audio attachments.
// $post is an audio or video attachment
// Type
$metadata_arr[] = '<meta name="twitter:card" content="player" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// Title
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr($content_desc) . '" />';
}
// twitter:player
$metadata_arr[] = sprintf('<meta name="twitter:player" content="%s" />', esc_url_raw(amt_make_https(amt_embed_get_container_url($post->ID))));
// Player size
if ('video' == $attachment_type) {
// Player size (this should be considered irrelevant of the video size)
$player_size = apply_filters('amt_twitter_cards_video_player_size', array(640, 480));
} elseif ('audio' == $attachment_type) {
$player_size = apply_filters('amt_twitter_cards_audio_player_size', array(320, 30));
}
// twitter:player:width
$metadata_arr[] = sprintf('<meta name="twitter:player:width" content="%d" />', esc_attr($player_size[0]));
// twitter:player:height
$metadata_arr[] = sprintf('<meta name="twitter:player:height" content="%d" />', esc_attr($player_size[1]));
// twitter:image
$preview_image_url = amt_embed_get_preview_image($post->ID);
if (!empty($preview_image_url)) {
$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw(amt_make_https($preview_image_url)) . '" />';
}
// twitter:player:stream
$metadata_arr[] = '<meta name="twitter:player:stream" content="' . esc_url_raw(amt_make_https(amt_embed_get_stream_url($post->ID))) . '" />';
// twitter:player:stream:content_type
$metadata_arr[] = '<meta name="twitter:player:stream:content_type" content="' . esc_attr($mime_type) . '" />';
//$metadata_arr[] = '<meta name="twitter:player:stream:content_type" content="video/mp4; codecs="avc1.42E01E1, mp4a.40.2"">';
}
// Content
// - standard format (post_format === false), aside, link, quote, status, chat (create summary card or summary_large_image if enforced)
// - photo format (creates (summary_large_image card)
} elseif (get_post_format($post->ID) === false || in_array(get_post_format($post->ID), array('image', 'aside', 'link', 'quote', 'status', 'chat'))) {
// Render a summary card if standard format (or summary_large_image if enforced).
// Render a summary_large_image card if image format.
// Type
if (get_post_format($post->ID) === false || in_array(get_post_format($post->ID), array('aside', 'link', 'quote', 'status', 'chat'))) {
$metadata_arr[] = '<meta name="twitter:card" content="' . amt_get_default_twitter_card_type($options) . '" />';
// Set the image size to use
$image_size = apply_filters('amt_image_size_content', 'full');
} elseif (get_post_format($post->ID) == 'image') {
$metadata_arr[] = '<meta name="twitter:card" content="summary_large_image" />';
// Set the image size to use
// Since we need a bigger image, here we filter the image size through 'amt_image_size_attachment',
// which typically returns a size bigger than 'amt_image_size_content'.
$image_size = apply_filters('amt_image_size_attachment', 'full');
}
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// Title
// Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// Image
// Use the FIRST image ONLY
// Set to true if image meta tags have been added to the card, so that it does not
// search for any more images.
$image_metatags_added = false;
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( $image_metatags_added === false && ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// Images have been found.
$image_metatags_added = true;
}
// If the content has a featured image, then we use it.
if ($image_metatags_added === false && function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
$main_size_meta = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
$metadata_arr[] = '<meta name="twitter:image:src" content="' . esc_url_raw($main_size_meta[0]) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr($main_size_meta[1]) . '" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr($main_size_meta[2]) . '" />';
}
// Images have been found.
$image_metatags_added = true;
}
// If a featured image is not set for this content, try to find the first image
if ($image_metatags_added === false) {
// Process all attachments and add metatags for the first image.
foreach ($attachments as $attachment) {
$mime_type = get_post_mime_type($attachment->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
if ('image' == $attachment_type) {
// Image tags
$main_size_meta = wp_get_attachment_image_src($attachment->ID, $image_size);
$metadata_arr[] = '<meta name="twitter:image:src" content="' . esc_url_raw($main_size_meta[0]) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr($main_size_meta[1]) . '" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr($main_size_meta[2]) . '" />';
}
// Images have been found.
$image_metatags_added = true;
// If an image is added, break.
break;
}
}
}
// If a local image-attachment is not set, try to find any embedded images
if ($image_metatags_added === false) {
// Embedded Media
foreach ($embedded_media['images'] as $embedded_item) {
if (get_post_format($post->ID) === false || in_array(get_post_format($post->ID), array('aside', 'link', 'quote', 'status', 'chat'))) {
$metadata_arr[] = '<meta name="twitter:image:src" content="' . esc_url_raw($embedded_item['thumbnail']) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="150" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="150" />';
}
} elseif (get_post_format($post->ID) == 'image') {
$metadata_arr[] = '<meta name="twitter:image:src" content="' . esc_url_raw($embedded_item['image']) . '" />';
if (apply_filters('amt_extended_image_tags', true)) {
$metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr($embedded_item['width']) . '" />';
$metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr($embedded_item['height']) . '" />';
}
}
// Images have been found.
$image_metatags_added = true;
// If an image is added, break.
break;
}
}
// If an image is still missing, then use the default image (if set).
if ($image_metatags_added === false) {
$image_data = amt_get_default_image_data();
if (!empty($image_data)) {
// Image size already set
//$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
}
// Content
// - gallery format (creates gallery card)
} elseif (get_post_format($post->ID) == 'gallery') {
// Render a gallery card if gallery format.
// Type
$metadata_arr[] = '<meta name="twitter:card" content="gallery" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// Title
// Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// Image
// Set to true if image meta tags have been added to the card, so that it does not
// search for any more images.
$image_metatags_added = false;
// First check if a global image override URL has been entered.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( $image_metatags_added === false && ! empty( $global_image_override_url ) ) {
// Note 'image0'
// $metadata_arr[] = '<meta name="twitter:image0" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// Images have been found.
$image_metatags_added = true;
}
// Build the gallery
if ($image_metatags_added === false) {
// Image counter
$k = 0;
// Process all attachments and add metatags for the first image
foreach ($attachments as $attachment) {
$mime_type = get_post_mime_type($attachment->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
if ('image' == $attachment_type) {
// Image tags
// Allow filtering of the image size.
$image_size = apply_filters('amt_image_size_content', 'full');
$main_size_meta = wp_get_attachment_image_src($attachment->ID, $image_size);
$metadata_arr[] = '<meta name="twitter:image' . $k . '" content="' . esc_url_raw($main_size_meta[0]) . '" />';
// Increment the counter
$k++;
}
}
// Embedded Media
foreach ($embedded_media['images'] as $embedded_item) {
$metadata_arr[] = '<meta name="twitter:image' . $k . '" content="' . esc_url_raw($embedded_item['image']) . '" />';
// Increment the counter
$k++;
}
}
// Content
// - video/audio format (creates player card)
// Note: The ``tc_enable_player_card_local`` option is checked after this initial check,
// because 'player' twitter cards are always generated for embedded audio and video.
} elseif (get_post_format($post->ID) == 'video' || get_post_format($post->ID) == 'audio') {
$post_format = get_post_format($post->ID);
$audio_video_metatags_complete = false;
// Process local media only if it is allowed by the user.
if ($audio_video_metatags_complete === false && $options["tc_enable_player_card_local"] == "1") {
// Local media - Process all attachments and add metatags for the first video
foreach ($attachments as $attachment) {
$mime_type = get_post_mime_type($attachment->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
// Get attachment metadata from WordPress
$attachment_metadata = wp_get_attachment_metadata($attachment->ID);
// We create player cards for video and audio attachments.
// The post might have attachments of other types.
if (!in_array($attachment_type, array('video', 'audio'))) {
continue;
} elseif ($attachment_type != $post_format) {
continue;
}
// Render a player card for the first attached audio or video.
// twitter:card
$metadata_arr[] = '<meta name="twitter:card" content="player" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// twitter:title
// Title - Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// twitter:description
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// twitter:player
$metadata_arr[] = sprintf('<meta name="twitter:player" content="%s" />', esc_url_raw(amt_make_https(amt_embed_get_container_url($attachment->ID))));
// Player size
if ($post_format == 'video') {
// Player size (this should be considered irrelevant of the video size)
$player_size = apply_filters('amt_twitter_cards_video_player_size', array(640, 480));
} elseif ($post_format == 'audio') {
$player_size = apply_filters('amt_twitter_cards_audio_player_size', array(320, 30));
}
// twitter:player:width
$metadata_arr[] = sprintf('<meta name="twitter:player:width" content="%d" />', esc_attr($player_size[0]));
// twitter:player:height
$metadata_arr[] = sprintf('<meta name="twitter:player:height" content="%d" />', esc_attr($player_size[1]));
// twitter:player:stream
$metadata_arr[] = '<meta name="twitter:player:stream" content="' . esc_url_raw(amt_make_https(amt_embed_get_stream_url($attachment->ID))) . '" />';
// twitter:player:stream:content_type
$metadata_arr[] = '<meta name="twitter:player:stream:content_type" content="' . esc_attr($mime_type) . '" />';
//$metadata_arr[] = '<meta name="twitter:player:stream:content_type" content="video/mp4; codecs="avc1.42E01E1, mp4a.40.2"">';
// twitter:image
// First check if a global image override URL has been set in the post's metabox.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// Else use the featured image if it exists
} elseif (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Set the image size to use
$image_size = apply_filters('amt_image_size_content', 'full');
$main_size_meta = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw($main_size_meta[0]) . '" />';
//if ( apply_filters( 'amt_extended_image_tags', true ) ) {
// $metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr( $main_size_meta[1] ) . '" />';
// $metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr( $main_size_meta[2] ) . '" />';
//}
// Else use the attachment's featured image, if set.
} else {
// Else use the attachment's featured image, if set.
$image_data = amt_embed_get_preview_image($attachment->ID);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
//$preview_image_url = amt_embed_get_preview_image( $attachment->ID );
//if ( ! empty( $preview_image_url ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( amt_make_https( $preview_image_url ) ) . '" />';
//}
}
$audio_video_metatags_complete = true;
break;
}
}
// Process embedded media only if a twitter player card has not been generated.
if ($audio_video_metatags_complete === false) {
// Determine the relevant array (videos or sounds)
if ($post_format == 'video') {
$embedded_items = $embedded_media['videos'];
} elseif ($post_format == 'audio') {
$embedded_items = $embedded_media['sounds'];
}
// Embedded Media
foreach ($embedded_items as $embedded_item) {
// Render a player card for the first embedded video.
// twitter:card
$metadata_arr[] = '<meta name="twitter:card" content="player" />';
// Author and Publisher
$metadata_arr = array_merge($metadata_arr, amt_get_twitter_cards_author_publisher_metatags($options, $post));
// twitter:title
// Title - Note: Contains multipage information
$metadata_arr['twitter:title'] = '<meta name="twitter:title" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />';
// twitter:description
// Description - We use the description defined by Add-Meta-Tags
// Note: Contains multipage information through amt_process_paged()
$content_desc = amt_get_content_description($post);
if (!empty($content_desc)) {
$metadata_arr[] = '<meta name="twitter:description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />';
}
// twitter:player
$metadata_arr[] = '<meta name="twitter:player" content="' . esc_url_raw($embedded_item['player']) . '" />';
// Player size
// Alt Method: Size uses $content_width
//global $content_width;
//$width = $content_width;
//$height = absint(absint($content_width)*3/4);
//$metadata_arr[] = '<meta name="twitter:width" content="' . esc_attr( $width ) . '" />';
//$metadata_arr[] = '<meta name="twitter:height" content="' . esc_attr( $height ) . '" />';
// twitter:player:width
$metadata_arr[] = sprintf('<meta name="twitter:player:width" content="%d" />', esc_attr($embedded_item['width']));
// twitter:player:height
$metadata_arr[] = sprintf('<meta name="twitter:player:height" content="%d" />', esc_attr($embedded_item['height']));
// twitter:image
// First check if a global image override URL has been set in the post's metabox.
// If yes, use this image URL and override all other images.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $global_image_override_url ) . '" />';
// Else use the featured image if it exists
} elseif (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
// Set the image size to use
$image_size = apply_filters('amt_image_size_content', 'full');
$main_size_meta = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
$metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw($main_size_meta[0]) . '" />';
//if ( apply_filters( 'amt_extended_image_tags', true ) ) {
// $metadata_arr[] = '<meta name="twitter:image:width" content="' . esc_attr( $main_size_meta[1] ) . '" />';
// $metadata_arr[] = '<meta name="twitter:image:height" content="' . esc_attr( $main_size_meta[2] ) . '" />';
//}
// Else use the attachment's featured image, if set.
} else {
$image_data = amt_get_image_data($embedded_item['thumbnail']);
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_twitter_cards_image_metatags($options, $image_data, $size = $image_size);
if (!empty($image_meta_tags)) {
$metadata_arr = array_merge($metadata_arr, $image_meta_tags);
}
}
}
// Else use the discovered preview image, if any.
//} elseif ( ! empty( $embedded_item['thumbnail'] ) ) {
// $metadata_arr[] = '<meta name="twitter:image" content="' . esc_url_raw( $embedded_item['thumbnail'] ) . '" />';
//}
//
$audio_video_metatags_complete = true;
break;
}
}
}
// Filtering of the generated Twitter Card metadata
$metadata_arr = apply_filters('amt_twitter_cards_metadata_head', $metadata_arr);
return $metadata_arr;
}
/**
* Returns an array of all the generated metadata for the footer area.
*/
function amt_get_metadata_footer()
{
// Get the options the DB
$options = get_option("add_meta_tags_opts");
$do_add_metadata = true;
$metadata_arr = array();
// Get current post object
$post = get_queried_object();
if (is_null($post)) {
// Allow metadata on the default front page (latest posts).
// A post object is not available on that page, but we still need to
// generate metadata for it. A $post object exists for the "front page"
// and the "posts page" when static pages are used. No allow rule needed.
if (!amt_is_default_front_page()) {
$do_add_metadata = false;
}
} elseif (is_singular()) {
// The post type check should only take place on content pages.
// Check if metadata should be added to this content type.
$post_type = get_post_type($post);
if (!in_array($post_type, amt_get_supported_post_types())) {
$do_add_metadata = false;
}
}
// Add Metadata
if ($do_add_metadata) {
// Attachments and embedded media are collected only on content pages.
if (is_singular()) {
// Get an array containing the attachments
$attachments = amt_get_ordered_attachments($post);
//var_dump($attachments);
// Get an array containing the URLs of the embedded media
$embedded_media = amt_get_embedded_media($post);
//var_dump($embedded_media);
} else {
$attachments = array();
$embedded_media = array();
}
// Add Schema.org Microdata
$metadata_arr = array_merge($metadata_arr, amt_add_schemaorg_metadata_footer($post, $attachments, $embedded_media, $options));
}
// Allow filtering of all the generated metatags
$metadata_arr = apply_filters('amt_metadata_footer', $metadata_arr);
// Add our comment
if (count($metadata_arr) > 0) {
array_unshift($metadata_arr, "<!-- BEGIN Metadata added by Add-Meta-Tags WordPress plugin -->");
array_push($metadata_arr, "<!-- END Metadata added by Add-Meta-Tags WordPress plugin -->");
}
return $metadata_arr;
}
function amt_internal_get_title($options, $post, $title_templates, $force_custom_title_if_set = false, $caller_is_metadata_generator = false)
{
// EARLY PROCESSING
// First we check for a custom title whgich may have been inserted in the
// relevant Custom Field of the supported types.
$custom_title = '';
if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
if (!is_null($post)) {
// Check if metadata is supported on this content type.
$post_type = get_post_type($post);
if (in_array($post_type, amt_get_supported_post_types())) {
// Store the custom title. Should be empty for post types which do not support a custom title or which have an empty custom title.
$custom_title = amt_get_post_meta_title($post->ID);
//$custom_title = str_replace('%title%', $title, $custom_title);
// Allow filtering of the custom title
$custom_title = apply_filters('amt_custom_title', $custom_title);
}
}
}
// Early processing in case advanced title management is TURNED OFF
// This early processing takes place only for calls from the 'amt_get_title_for_title_element()' function.
// WordPress constructs its own titles for the 'title' HTML element, so we
// do not need to do further processing and title guessing here.
// This early processing is NOT performed for calls from the 'amt_get_title_for_metadata()' function,
// because the metadata generators
if (!$caller_is_metadata_generator && array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '0') {
if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
if (!empty($custom_title)) {
// Contains paging information
return amt_process_paged($custom_title);
}
}
return;
}
// From now on Add-Meta-Tags generates the title.
// TEMPLATE VARIABLES
// Set template variable values
// #entity_title#, #Entity_title#, #Entity_Title#, #page#, #page_total#, #site_name#, #site_tagline#, #year#, #month#, #month_name#, #day#
// Date variables
// Credit for the following here: http://wordpress.stackexchange.com/a/109674
// https://developer.wordpress.org/reference/classes/wp_locale/
$var_year = 0;
$var_month = 0;
$var_month_name = '';
$var_day = 0;
if (is_date()) {
// On date archives the following have a value. On the default front page are zero
$var_year = get_query_var('year');
$var_month = get_query_var('monthnum');
$var_month_name = '';
if ($var_month) {
$var_month_name = $GLOBALS['wp_locale']->get_month($var_month);
}
$var_day = get_query_var('day');
} elseif (is_singular() || amt_is_static_front_page() || amt_is_static_home()) {
$var_year = mysql2date('Y', $post->post_date);
$var_month = mysql2date('m', $post->post_date);
$var_month_name = '';
if ($var_month) {
$var_month_name = $GLOBALS['wp_locale']->get_month($var_month);
}
$var_day = mysql2date('d', $post->post_date);
}
// #page_total#
global $wp_query;
$page_total = 1;
if (isset($wp_query->max_num_pages)) {
$page_total = $wp_query->max_num_pages;
}
// #page#
$page = 1;
// For paginated archives or paginated main page with latest posts.
if (is_paged()) {
$paged = get_query_var('paged');
// paged
if ($paged && $paged >= 2) {
$page = $paged;
}
// For a Post or Page that has been divided into pages using the <!--nextpage--> QuickTag
} else {
$paged = get_query_var('page');
// page
if ($paged && $paged >= 2) {
$page = $paged;
}
}
// #site_name#
$site_name = get_bloginfo('name');
// #site_tagline#
$site_tagline = get_bloginfo('description');
// MAIN PROCESSING
// 1) generate title, 2) determine title template
// #entity_title# and $entity_title_template
$entity_title = '';
$entity_title_template = '';
// Default front page displaying the latest posts
if (amt_is_default_front_page()) {
// Entity title
// $post is NULL
$entity_title = get_bloginfo('name');
// No custom title
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('front_page_default_paged', $title_templates)) {
$entity_title_template = $title_templates['front_page_default_paged'];
} elseif (array_key_exists('front_page_default', $title_templates)) {
$entity_title_template = $title_templates['front_page_default'];
}
}
// Front page using a static page
// Note: might also contain a listing of posts which may be paged, so use amt_process_paged()
} elseif (amt_is_static_front_page()) {
// Entity title
$entity_title = strip_tags(get_the_title($post->ID));
if (!empty($custom_title) && $force_custom_title_if_set) {
$custom_title = str_replace('%title%', $entity_title, $custom_title);
$entity_title = $custom_title;
}
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('front_page_static_paged', $title_templates)) {
$entity_title_template = $title_templates['front_page_static_paged'];
} elseif (array_key_exists('front_page_static', $title_templates)) {
$entity_title_template = $title_templates['front_page_static'];
}
}
// The posts index page - a static page displaying the latest posts
} elseif (amt_is_static_home()) {
// Entity title
$entity_title = strip_tags(get_the_title($post->ID));
if (!empty($custom_title) && $force_custom_title_if_set) {
$custom_title = str_replace('%title%', $entity_title, $custom_title);
$entity_title = $custom_title;
}
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('blog_index_static_paged', $title_templates)) {
$entity_title_template = $title_templates['blog_index_static_paged'];
} elseif (array_key_exists('blog_index_static', $title_templates)) {
$entity_title_template = $title_templates['blog_index_static'];
}
}
// Date Archives
// Yearly Archive
} elseif (is_year()) {
// Entity title
$entity_title = $var_year;
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('archive_date_yearly_paged', $title_templates)) {
$entity_title_template = $title_templates['archive_date_yearly_paged'];
} elseif (array_key_exists('archive_date_yearly', $title_templates)) {
$entity_title_template = $title_templates['archive_date_yearly'];
}
}
// Monthly Archive
} elseif (is_month()) {
// Entity title
$entity_title = $var_month_name;
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('archive_date_monthly_paged', $title_templates)) {
$entity_title_template = $title_templates['archive_date_monthly_paged'];
} elseif (array_key_exists('archive_date_monthly', $title_templates)) {
$entity_title_template = $title_templates['archive_date_monthly'];
}
}
// Daily Archive
} elseif (is_day()) {
// Entity title
$entity_title = $var_day;
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('archive_date_daily_paged', $title_templates)) {
$entity_title_template = $title_templates['archive_date_daily_paged'];
} elseif (array_key_exists('archive_date_daily', $title_templates)) {
$entity_title_template = $title_templates['archive_date_daily'];
}
}
// Taxonomy Archive
// $post is a taxonomy term object
} elseif (is_category() || is_tag() || is_tax()) {
// Entity title
$entity_title = single_term_title($prefix = '', $display = false);
// Entity title template
$template_name = 'archive_taxonomy_' . $post->taxonomy;
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) {
$entity_title_template = $title_templates[$template_name . '_paged'];
} elseif (array_key_exists($template_name, $title_templates)) {
$entity_title_template = $title_templates[$template_name];
}
}
// Author Archive
// $post is an author object
} elseif (is_author()) {
// Entity title
$entity_title = $post->display_name;
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('archive_author_paged', $title_templates)) {
$entity_title_template = $title_templates['archive_author_paged'];
} elseif (array_key_exists('archive_author', $title_templates)) {
$entity_title_template = $title_templates['archive_author'];
}
}
// Custom Post Type Archive
} elseif (is_post_type_archive()) {
// Entity title
$entity_title = post_type_archive_title($prefix = '', $display = false);
// Entity title template
// $post is a content type object
$template_name = 'archive_posttype_' . $post->name;
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) {
$entity_title_template = $title_templates[$template_name . '_paged'];
} elseif (array_key_exists($template_name, $title_templates)) {
$entity_title_template = $title_templates[$template_name];
}
}
// Content
} elseif (is_singular()) {
// Entity title
// In some cases, like EDD downloads, get_the_title() also returns escaped HTML. Use strip_tags().
$entity_title = strip_tags(get_the_title($post->ID));
// Alternatively, use the_title_attribute(). See: https://codex.wordpress.org/Function_Reference/the_title_attribute
//$entity_title = the_title_attribute( array( 'before'=>'', 'after'=>'', 'echo'=>false, $post->ID) );
if (!empty($custom_title) && $force_custom_title_if_set) {
$custom_title = str_replace('%title%', $entity_title, $custom_title);
$entity_title = $custom_title;
}
// Attachments
if (is_attachment()) {
// Attachment type
$mime_type = get_post_mime_type($post->ID);
//$attachment_type = strstr( $mime_type, '/', true );
// See why we do not use strstr(): http://www.codetrax.org/issues/1091
$attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
$template_name = 'content_attachment';
if (array_key_exists('content_attachment_' . $attachment_type, $title_templates)) {
$template_name = 'content_attachment_' . $attachment_type;
}
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
// No paging info
if (array_key_exists($template_name, $title_templates)) {
$entity_title_template = $title_templates[$template_name];
}
}
// Page
} elseif (is_page()) {
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists('content_page_paged', $title_templates)) {
$entity_title_template = $title_templates['content_page_paged'];
} elseif (array_key_exists('content_page', $title_templates)) {
$entity_title_template = $title_templates['content_page'];
}
}
// Posts and custom post types (with post format checking)
} else {
$post_type = get_post_type($post);
$post_format = get_post_format($post->ID);
$template_name = 'content_' . $post_type;
if ($post_format !== false && array_key_exists($template_name . '_' . $post_format, $title_templates)) {
$template_name = $template_name . '_' . $post_format;
}
// Entity title template
if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) {
$entity_title_template = $title_templates[$template_name . '_paged'];
} elseif (array_key_exists($template_name, $title_templates)) {
$entity_title_template = $title_templates[$template_name];
}
}
}
}
// LATE PROCESSING
$title = '';
// Late processing in case advanced title management is TURNED OFF
// This late processing takes place only for calls from the 'amt_get_title_for_metadata()' function.
// The metadata generators do not construct a title, so this has to be done here (above $entity_title).
if ($caller_is_metadata_generator && array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '0') {
if (!empty($entity_title)) {
if ($page && $page >= 2) {
$title = amt_process_paged($entity_title);
} else {
$title = $entity_title;
}
} else {
// TODO: This appears in BuddyPress member pages. Maybe it should just set $title to an empty string.
//$title = 'PROGRAMMING ERROR - MISSING TITLE';
$title = '';
}
} elseif (empty($entity_title_template)) {
// If the caller is a metadata generator, then the title cannot be determined otherwise.
// So, if an $entity_title has been found we return it.
if ($caller_is_metadata_generator) {
// If a metadata generator requested a title, but a template was
// not found, return an error message as the title, unless the
// $entity_title is not empty, in which case set the title to it as is.
if (!empty($entity_title)) {
$title = $entity_title;
} else {
// TODO: Maybe it should just set $title to an empty string.
//$title = 'TITLE TEMPLATE NOT FOUND';
$title = '';
}
} else {
// If the title was requested for the 'title' HTML element, but a template
//was not found, return an empty string, so that the default WordPress title is used.
// TODO: Check if still required
$title = '';
}
// If advanced title management is enabled
} elseif (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') {
$template_vars = array('#year#' => $var_year, '#month#' => $var_month, '#month_name#' => $var_month_name, '#day#' => $var_day, '#page#' => $page, '#page_total#' => $page_total, '#site_name#' => $site_name, '#site_tagline#' => $site_tagline, '#entity_title#' => $entity_title, '#Entity_title#' => ucfirst(strtolower($entity_title)), '#Entity_Title#' => ucwords(strtolower($entity_title)));
// Replace variables in the template
foreach ($template_vars as $var_name => $var_value) {
$entity_title_template = str_replace($var_name, $var_value, $entity_title_template);
}
$title = $entity_title_template;
}
return $title;
}