/**
* 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;
}
/**
* Return an array of Schema.org metatags suitable for the author object of
* the content. Accepts the $post object as argument.
*/
function amt_get_jsonld_schemaorg_author_array($author_id, $options)
{
//$author_obj = get_user_by( 'id', $author_id );
$metadata_arr = array();
// Schema.org type
$metadata_arr['@type'] = 'Person';
// name
$display_name = get_the_author_meta('display_name', $author_id);
$metadata_arr['name'] = esc_attr($display_name);
// description
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field(amt_sanitize_description(get_the_author_meta('description', $author_id)));
if (!empty($author_description)) {
$metadata_arr['description'] = esc_attr($author_description);
}
// Profile Image
// First use the global image override URL
$image_data = amt_get_image_data(amt_get_user_meta_image_url($author_id));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', '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;
}
} else {
$author_email = sanitize_email(get_the_author_meta('user_email', $author_id));
$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['image'] = esc_url_raw( $avatar_url );
$image_data = amt_get_image_data(sprintf('%s,%dx%d', $avatar_url, $avatar_size, $avatar_size));
if (!empty($image_data)) {
$image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data);
if (!empty($image_meta_array)) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
}
}
// url
// The URL to the author archive is added as the url.
//$metadata_arr['url'] = esc_url_raw( get_author_posts_url( $author_id ) );
$metadata_arr['url'] = esc_url_raw(amt_get_local_author_profile_url($author_id, $options));
// sameAs
$metadata_arr['sameAs'] = array();
// Social Profile Links are added as sameAs properties
// Those from the WordPress User Profile page are used.
// Google+ Author
$googleplus_author_url = get_the_author_meta('amt_googleplus_author_profile_url', $author_id);
if (!empty($googleplus_author_url)) {
$metadata_arr['sameAs'][] = esc_url_raw($googleplus_author_url, array('http', 'https'));
}
// Facebook
$facebook_author_url = get_the_author_meta('amt_facebook_author_profile_url', $author_id);
if (!empty($facebook_author_url)) {
$metadata_arr['sameAs'][] = esc_url_raw($facebook_author_url, array('http', 'https'));
}
// Twitter
$twitter_author_username = get_the_author_meta('amt_twitter_author_username', $author_id);
if (!empty($twitter_author_username)) {
$metadata_arr['sameAs'][] = 'https://twitter.com/' . esc_attr($twitter_author_username);
}
// The User URL as set by the user in the WordPress User Profile page.
$user_url = get_the_author_meta('user_url', $author_id);
if (!empty($user_url)) {
$metadata_arr['sameAs'][] = esc_url_raw($user_url, array('http', 'https'));
}
// Check if empty
if (empty($metadata_arr['sameAs'])) {
unset($metadata_arr['sameAs']);
}
// Allow filtering of the Author meta tags
$metadata_arr = apply_filters('amt_jsonld_schemaorg_author_extra', $metadata_arr, $author_id);
return $metadata_arr;
}
function amt_save_postdata($post_id, $post)
{
// Verify if this is an auto save routine.
// If it is our form has not been submitted, so we dont want to do anything
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
/* Verify the nonce before proceeding. */
// Verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if (!isset($_POST['amt_noncename']) || !wp_verify_nonce($_POST['amt_noncename'], plugin_basename(AMT_PLUGIN_FILE))) {
return;
}
// Get the Metadata metabox permissions (filtered)
$metabox_permissions = amt_get_metadata_metabox_permissions();
// Global Metadata metabox permission check (can be user customized via filter).
if (!current_user_can($metabox_permissions['global_metabox_capability'])) {
return;
}
// Get the Add-Meta-Tags options.
$options = get_option("add_meta_tags_opts");
/* Get the post type object. */
$post_type_obj = get_post_type_object($post->post_type);
/* Check if the current user has permission to edit the post. */
if (!current_user_can($post_type_obj->cap->edit_post, $post_id)) {
return;
}
// OK, we're authenticated: we need to find and save the data
//
// Sanitize user input
//
//
// Description
if (isset($_POST['amt_custom_description'])) {
$description_value = sanitize_text_field(amt_sanitize_description(stripslashes($_POST['amt_custom_description'])));
}
// Keywords - sanitize_text_field() removes '%ca' part of '%cats%', so we enclose 'sanitize_text_field()' in amt_(convert|revert)_placeholders()
if (isset($_POST['amt_custom_keywords'])) {
$keywords_value = amt_sanitize_keywords(amt_revert_placeholders(sanitize_text_field(amt_convert_placeholders(stripslashes($_POST['amt_custom_keywords'])))));
}
// Title
if (isset($_POST['amt_custom_title'])) {
$title_value = amt_revert_placeholders(sanitize_text_field(amt_convert_placeholders(stripslashes($_POST['amt_custom_title']))));
}
// News keywords
if (isset($_POST['amt_custom_newskeywords'])) {
$newskeywords_value = sanitize_text_field(amt_sanitize_keywords(stripslashes($_POST['amt_custom_newskeywords'])));
}
// Full metatags - We allow only <meta> elements.
if (isset($_POST['amt_custom_full_metatags'])) {
$full_metatags_value = esc_textarea(wp_kses(stripslashes($_POST['amt_custom_full_metatags']), amt_get_allowed_html_kses()));
}
// Image URL
if (isset($_POST['amt_custom_image_url'])) {
$image_url_value = amt_esc_id_or_url_notation(stripslashes($_POST['amt_custom_image_url']));
}
// Content locale
if (isset($_POST['amt_custom_content_locale'])) {
$content_locale_value = esc_attr(stripslashes($_POST['amt_custom_content_locale']));
}
// Express review
if (isset($_POST['amt_custom_express_review'])) {
$express_review_value = esc_textarea(wp_kses(stripslashes($_POST['amt_custom_express_review']), array()));
//
// REVIEW_AMPERSAND_NOTE: We replace & to & for (see also REVIEW_AMPERSAND_NOTE in amt-utils.php)
//
$express_review_value = str_replace('&', '&', $express_review_value);
}
// List of referenced items - We allow no HTML elements.
if (isset($_POST['amt_custom_referenced_list'])) {
$referenced_list_value = esc_textarea(wp_kses(stripslashes($_POST['amt_custom_referenced_list']), array()));
}
// If a value has not been entered we try to delete existing data from the database
// If the user has entered data, store it in the database.
// Add-Meta-Tags custom field names
$amt_description_field_name = '_amt_description';
$amt_keywords_field_name = '_amt_keywords';
$amt_title_field_name = '_amt_title';
$amt_newskeywords_field_name = '_amt_news_keywords';
$amt_full_metatags_field_name = '_amt_full_metatags';
$amt_image_url_field_name = '_amt_image_url';
$amt_content_locale_field_name = '_amt_content_locale';
$amt_express_review_field_name = '_amt_express_review';
$amt_referenced_list_field_name = '_amt_referenced_list';
// As an extra security measure, here we also check the user-defined per box
// permissions before we save any data in the database.
// Description
if ($options['metabox_enable_description'] == '1' && current_user_can($metabox_permissions['description_box_capability'])) {
if (empty($description_value)) {
delete_post_meta($post_id, $amt_description_field_name);
// Also clean up old description field
delete_post_meta($post_id, 'description');
} else {
update_post_meta($post_id, $amt_description_field_name, $description_value);
// Also clean up again old description field - no need to exist any more since the new field is used.
delete_post_meta($post_id, 'description');
}
}
// Keywords
if ($options['metabox_enable_keywords'] == '1' && current_user_can($metabox_permissions['keywords_box_capability'])) {
if (empty($keywords_value)) {
delete_post_meta($post_id, $amt_keywords_field_name);
// Also clean up old keywords field
delete_post_meta($post_id, 'keywords');
} else {
update_post_meta($post_id, $amt_keywords_field_name, $keywords_value);
// Also clean up again old keywords field - no need to exist any more since the new field is used.
delete_post_meta($post_id, 'keywords');
}
}
// Title
if ($options['metabox_enable_title'] == '1' && current_user_can($metabox_permissions['title_box_capability'])) {
if (empty($title_value)) {
delete_post_meta($post_id, $amt_title_field_name);
} else {
update_post_meta($post_id, $amt_title_field_name, $title_value);
}
}
// 'news_keywords'
if ($options['metabox_enable_news_keywords'] == '1' && current_user_can($metabox_permissions['news_keywords_box_capability'])) {
if (empty($newskeywords_value)) {
delete_post_meta($post_id, $amt_newskeywords_field_name);
} else {
update_post_meta($post_id, $amt_newskeywords_field_name, $newskeywords_value);
}
}
// per post full meta tags
if ($options['metabox_enable_full_metatags'] == '1' && current_user_can($metabox_permissions['full_metatags_box_capability'])) {
if (empty($full_metatags_value)) {
delete_post_meta($post_id, $amt_full_metatags_field_name);
} else {
update_post_meta($post_id, $amt_full_metatags_field_name, $full_metatags_value);
}
}
// Image URL
if ($options['metabox_enable_image_url'] == '1' && current_user_can($metabox_permissions['image_url_box_capability'])) {
if (empty($image_url_value)) {
delete_post_meta($post_id, $amt_image_url_field_name);
} else {
update_post_meta($post_id, $amt_image_url_field_name, $image_url_value);
}
}
// Content locale
if ($options['metabox_enable_content_locale'] == '1' && current_user_can($metabox_permissions['content_locale_box_capability'])) {
if (empty($content_locale_value)) {
delete_post_meta($post_id, $amt_content_locale_field_name);
} else {
update_post_meta($post_id, $amt_content_locale_field_name, $content_locale_value);
}
}
// Express review
if ($options['metabox_enable_express_review'] == '1' && current_user_can($metabox_permissions['express_review_box_capability'])) {
if (empty($express_review_value)) {
delete_post_meta($post_id, $amt_express_review_field_name);
} else {
update_post_meta($post_id, $amt_express_review_field_name, $express_review_value);
}
}
// Referenced list
if ($options['metabox_enable_referenced_list'] == '1' && current_user_can($metabox_permissions['referenced_list_box_capability'])) {
if (empty($referenced_list_value)) {
delete_post_meta($post_id, $amt_referenced_list_field_name);
} else {
update_post_meta($post_id, $amt_referenced_list_field_name, $referenced_list_value);
}
}
}
/**
* Generates Opengraph metadata.
*
* Currently for:
* - home page
* - author archive
* - content
*/
function amt_add_opengraph_metadata_head($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 $metadata_arr;
}
/**
* Saves the new settings in the database.
* Accepts the POST request data.
*/
function amt_save_settings($post_payload)
{
// Default Add-Meta-Tags Settings
$default_options = amt_get_default_options();
$add_meta_tags_opts = array();
foreach ($default_options as $def_key => $def_value) {
// **Always** use the ``settings_version`` from the defaults
if ($def_key == 'settings_version') {
$add_meta_tags_opts['settings_version'] = $def_value;
} elseif (array_key_exists($def_key, $post_payload)) {
// Validate and sanitize input before adding to 'add_meta_tags_opts'
if ($def_key == 'site_description') {
$add_meta_tags_opts[$def_key] = sanitize_text_field(amt_sanitize_description(stripslashes($post_payload[$def_key])));
} elseif ($def_key == 'site_keywords') {
// No placeholders here
$add_meta_tags_opts[$def_key] = sanitize_text_field(amt_sanitize_keywords(stripslashes($post_payload[$def_key])));
} elseif ($def_key == 'global_keywords') {
// placeholder may exist here
$add_meta_tags_opts[$def_key] = amt_sanitize_keywords(amt_revert_placeholders(sanitize_text_field(amt_convert_placeholders(stripslashes($post_payload[$def_key])))));
} elseif ($def_key == 'site_wide_meta') {
$add_meta_tags_opts[$def_key] = esc_textarea(wp_kses(stripslashes($post_payload[$def_key]), amt_get_allowed_html_kses()));
} elseif ($def_key == 'copyright_url') {
$add_meta_tags_opts[$def_key] = esc_url_raw(stripslashes($post_payload[$def_key]), array('http', 'https'));
} elseif ($def_key == 'default_image_url') {
$add_meta_tags_opts[$def_key] = esc_url_raw(stripslashes($post_payload[$def_key]), array('http', 'https'));
} elseif ($def_key == 'social_main_facebook_publisher_profile_url') {
$add_meta_tags_opts[$def_key] = esc_url_raw(stripslashes($post_payload[$def_key]), array('http', 'https'));
} elseif ($def_key == 'social_main_googleplus_publisher_profile_url') {
$add_meta_tags_opts[$def_key] = esc_url_raw(stripslashes($post_payload[$def_key]), array('http', 'https'));
} elseif ($def_key == 'author_profile_source') {
$author_profile_source_value = sanitize_text_field(stripslashes($post_payload[$def_key]));
if (!in_array($author_profile_source_value, array('default', 'frontpage', 'buddypress', 'url'))) {
$author_profile_source_value = 'default';
}
$add_meta_tags_opts[$def_key] = $author_profile_source_value;
} elseif ($def_key == 'transient_cache_expiration') {
$transient_cache_expiration_value = sanitize_text_field(stripslashes($post_payload[$def_key]));
if (!is_numeric($transient_cache_expiration_value) || intval($transient_cache_expiration_value) < 0) {
$transient_cache_expiration_value = '0';
}
$add_meta_tags_opts[$def_key] = $transient_cache_expiration_value;
} else {
$add_meta_tags_opts[$def_key] = sanitize_text_field(stripslashes($post_payload[$def_key]));
}
} else {
// The following settings have a default value of 1, so they can never be
// deactivated, unless the following check takes place.
if ($def_key == 'auto_description' || $def_key == 'auto_keywords' || $def_key == 'noindex_search_results' || $def_key == 'metabox_enable_description' || $def_key == 'metabox_enable_keywords' || $def_key == 'metabox_enable_title') {
if (!isset($post_payload[$def_key])) {
$add_meta_tags_opts[$def_key] = "0";
}
} else {
// Else save the default value in the db.
$add_meta_tags_opts[$def_key] = $def_value;
}
}
}
// Finally update the Add-Meta-Tags options.
update_option("add_meta_tags_opts", $add_meta_tags_opts);
//var_dump($post_payload);
//var_dump($add_meta_tags_opts);
amt_show_info_msg(__('Add-Meta-Tags options saved', 'add-meta-tags'));
}
/**
* Generates basic metadata for the head area.
*
*/
function amt_add_basic_metadata_head($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 $metadata_arr;
}
/**
* Returns the post's excerpt.
* This function was written in order to get the excerpt *outside* the loop
* because the get_the_excerpt() function does not work there any more.
* This function makes the retrieval of the excerpt independent from the
* WordPress function in order not to break compatibility with older WP versions.
*
* Also, this is even better as the algorithm tries to get text of average
* length 250 characters, which is more SEO friendly. The algorithm is not
* perfect, but will do for now.
*
* MUST return sanitized text.
*/
function amt_get_the_excerpt($post, $excerpt_max_len = 300, $desc_avg_length = 250, $desc_min_length = 150)
{
if (empty($post->post_excerpt) || get_post_type($post) == 'attachment') {
// In attachments we always use $post->post_content to get a description
// Here we generate an excerpt from $post->post_content
// Early filter that lets dev define the post. This makes it possible to
// exclude specific parts of the post for the rest of the algorithm.
$initial_content = apply_filters('amt_get_the_excerpt_initial_content', $post->post_content, $post);
// First strip all HTML tags
$plain_text = wp_kses($initial_content, array());
// Strip shortcodes
$plain_text = strip_shortcodes($plain_text);
// Get the initial text.
// We use $excerpt_max_len characters of the text for the description.
$amt_excerpt = sanitize_text_field(amt_sanitize_description(substr($plain_text, 0, $excerpt_max_len)));
// Remove any URLs that may exist exactly at the beginning of the description.
// This may happen if for example you put a youtube video url first thing in
// the post body.
$amt_excerpt = preg_replace('#^https?:[^\\t\\r\\n\\s]+#i', '', $amt_excerpt);
$amt_excerpt = ltrim($amt_excerpt);
// If this was not enough, try to get some more clean data for the description (nasty hack)
if (strlen($amt_excerpt) < $desc_avg_length) {
$amt_excerpt = sanitize_text_field(amt_sanitize_description(substr($post->post_content, 0, (int) ($excerpt_max_len * 1.5))));
if (strlen($amt_excerpt) < $desc_avg_length) {
$amt_excerpt = sanitize_text_field(amt_sanitize_description(substr($post->post_content, 0, (int) ($excerpt_max_len * 2))));
}
}
/** ORIGINAL ALGO
// Get the initial data for the excerpt
$amt_excerpt = strip_tags(substr($post->post_content, 0, $excerpt_max_len));
// If this was not enough, try to get some more clean data for the description (nasty hack)
if ( strlen($amt_excerpt) < $desc_avg_length ) {
$amt_excerpt = strip_tags(substr($post->post_content, 0, (int) ($excerpt_max_len * 1.5)));
if ( strlen($amt_excerpt) < $desc_avg_length ) {
$amt_excerpt = strip_tags(substr($post->post_content, 0, (int) ($excerpt_max_len * 2)));
}
}
*/
$end_of_excerpt = strrpos($amt_excerpt, ".");
if ($end_of_excerpt) {
// if there are sentences, end the description at the end of a sentence.
$amt_excerpt_test = substr($amt_excerpt, 0, $end_of_excerpt + 1);
if (strlen($amt_excerpt_test) < $desc_min_length) {
// don't end at the end of the sentence because the description would be too small
$amt_excerpt .= "...";
} else {
// If after ending at the end of a sentence the description has an acceptable length, use this
$amt_excerpt = $amt_excerpt_test;
}
} else {
// otherwise (no end-of-sentence in the excerpt) add this stuff at the end of the description.
$amt_excerpt .= "...";
}
} else {
// When the post excerpt has been set explicitly, then it has priority.
$amt_excerpt = sanitize_text_field(amt_sanitize_description($post->post_excerpt));
// NOTE ABOUT ATTACHMENTS: In attachments $post->post_excerpt is the caption.
// It is usual that attachments have both the post_excerpt and post_content set.
// Attachments should never enter here, but be processed above, so that
// post->post_content is always used as the source of the excerpt.
}
/**
* In some cases, the algorithm might not work, depending on the content.
* In those cases, $amt_excerpt might only contain ``...``. Here we perform
* a check for this and return an empty $amt_excerpt.
*/
if (trim($amt_excerpt) == "...") {
$amt_excerpt = "";
}
/**
* Allow filtering of the generated excerpt.
*
* Filter with:
*
* function customize_amt_excerpt( $post ) {
* $amt_excerpt = ...
* return $amt_excerpt;
* }
* add_filter( 'amt_get_the_excerpt', 'customize_amt_excerpt', 10, 1 );
*/
$amt_excerpt = apply_filters('amt_get_the_excerpt', $amt_excerpt, $post);
return $amt_excerpt;
}
function amt_buddypress_jsonld_schemaorg($metadata_arr, $post, $options, $attachments, $embedded_media)
{
// User Profiles
// Determines if a BuddyPress user profile has been requested
if (bp_is_user_profile()) {
// https://codex.buddypress.org/developer/the-bp-global/
global $bp;
// $user_id = $bp->displayed_user->id;
$user_id = bp_displayed_user_id();
// $user_domain = $bp->displayed_user->domain;
// bp_core_get_user_domain( bp_displayed_user_id() )
$user_domain = bp_displayed_user_domain();
$user_profile_url = trailingslashit(bp_displayed_user_domain() . amt_bp_get_profile_slug());
$user_fullname = $bp->displayed_user->fullname;
// $user_fullname = bp_displayed_user_fullname();
// $user_username = $bp->displayed_user->user_login;
$user_username = bp_get_displayed_user_username();
//$wp_user_obj = get_user_by( 'id', $user_id );
$wp_user_obj = get_userdata($user_id);
//var_dump($wp_user_obj);
// Context
$metadata_arr['@context'] = 'http://schema.org';
// Schema.org type
$metadata_arr['@type'] = 'Person';
// name
$metadata_arr['name'] = esc_attr($user_fullname);
// URL
$metadata_arr['url'] = esc_url($user_profile_url, array('http', 'https'));
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url($user_profile_url, array('http', 'https'));
// Related resources as sameAs
$metadata_arr['sameAs'] = array();
// Facebook Profile
//$fb_author_url = get_the_author_meta('amt_facebook_author_profile_url', $user_id);
$fb_author_url = get_user_meta($user_id, 'amt_facebook_author_profile_url', true);
if (!empty($fb_author_url)) {
$metadata_arr['sameAs'][] = esc_url($fb_author_url, array('http', 'https'));
}
// Twitter
//$twitter_author_username = get_the_author_meta('amt_twitter_author_username', $user_id);
$twitter_author_username = get_user_meta($user_id, 'amt_twitter_author_username', true);
if (!empty($twitter_author_username)) {
$metadata_arr['sameAs'][] = 'https://twitter.com/' . esc_attr($twitter_author_username);
}
// Google+
//$googleplus_author_url = get_the_author_meta('amt_googleplus_author_profile_url', $wp_user_obj);
$googleplus_author_url = get_user_meta($user_id, 'amt_googleplus_author_profile_url', true);
if (!empty($googleplus_author_url)) {
$metadata_arr['sameAs'][] = esc_url($googleplus_author_url, array('http', 'https'));
}
// Determines if Extended Profiles component is active.
if (!bp_is_active('xprofile')) {
// Website
//$website_url = get_user_meta($user_id, 'amt_googleplus_author_profile_url', true);
$website_url = get_the_author_meta('user_url', $user_id);
if (!empty($website_url)) {
$metadata_arr['sameAs'][] = esc_url($website_url, array('http', 'https'));
}
// Description
$author_description = sanitize_text_field(amt_sanitize_description($wp_user_obj->description));
if (empty($author_description)) {
$metadata_arr['description'] = esc_attr(__('Profile of', 'add-meta-tags') . ' ' . $wp_user_obj->display_name);
} else {
$metadata_arr['description'] = esc_attr($author_description);
}
// Profile Image
$author_email = sanitize_email($wp_user_obj->user_email);
$avatar_size = apply_filters('amt_bp_avatar_size', array('width' => 50, 'height' => 50));
$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', $wp_user_obj->ID), $avatar_size, '', get_the_author_meta('display_name', $wp_user_obj->ID));
if (!empty($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');
$metadata_arr['image'] = esc_url($avatar_url);
}
// familyName
$last_name = $wp_user_obj->last_name;
if (!empty($last_name)) {
$metadata_arr['familyName'] = esc_attr($last_name);
}
// givenName
$first_name = $wp_user_obj->first_name;
if (!empty($first_name)) {
$metadata_arr['givenName'] = esc_attr($first_name);
}
// Extended Profiles
} else {
// https://codex.buddypress.org/themes/guides/displaying-extended-profile-fields-on-member-profiles/
$xprofile_field_map = amt_buddypress_get_xprofile_field_map();
// Get list of IDs of public fields
$xprofile_public_fields = bp_xprofile_get_fields_by_visibility_levels($user_id, array('public'));
// Website
$field_value = amt_bp_get_profile_field_data('website', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['sameAs'][] = esc_url($field_value, array('http', 'https'));
}
// Description
$field_value = amt_bp_get_profile_field_data('description', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field(amt_sanitize_description($field_value));
if (!empty($field_value)) {
$metadata_arr['description'] = esc_attr($field_value);
} else {
$metadata_arr['description'] = esc_attr(__('Profile of', 'add-meta-tags') . ' ' . $user_fullname);
}
// Profile Image
// Important: for this to work the "Show Avatars" option should be enabled in Settings > Discussion.
$avatar_size = apply_filters('amt_bp_avatar_size', array('width' => 50, 'height' => 50));
$avatar_url = '';
$avatar_args = array('item_id' => $user_id, 'width' => $avatar_size['width'], 'height' => $avatar_size['height']);
$avatar_img = bp_core_fetch_avatar($avatar_args);
if (!empty($avatar_img)) {
if (preg_match("#src=['\"]([^'\"]+)['\"]#", $avatar_img, $matches)) {
$avatar_url = $matches[1];
}
}
if (!empty($avatar_url)) {
//$avatar_url = html_entity_decode($avatar_url, ENT_NOQUOTES, 'UTF-8');
$metadata_arr['image'] = esc_url($avatar_url);
}
// familyName
$has_last_name = false;
$field_value = amt_bp_get_profile_field_data('last_name', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['familyName'] = esc_attr($field_value);
$has_last_name = true;
}
// givenName
$has_first_name = false;
$field_value = amt_bp_get_profile_field_data('first_name', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['givenName'] = esc_attr($field_value);
$has_first_name = true;
}
// Generate first and last name from full name if needed.
if (!$has_last_name && !$has_first_name && !empty($user_fullname)) {
$parts = explode(' ', $user_fullname);
$last_name = sanitize_text_field(array_pop($parts));
// Removes and returns the element off the end of array
if (!empty($last_name)) {
$metadata_arr['familyName'] = esc_attr($last_name);
}
$first_name = sanitize_text_field(implode(' ', $parts));
if (!empty($first_name)) {
$metadata_arr['givenName'] = esc_attr($first_name);
}
}
// alternateName
$field_value = amt_bp_get_profile_field_data('nickname', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['alternateName'] = esc_attr($field_value);
}
// additionalName
$field_value = amt_bp_get_profile_field_data('additional_name', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['additionalName'] = esc_attr($field_value);
}
// honorificPrefix
$field_value = amt_bp_get_profile_field_data('honorific_prefix', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['honorificPrefix'] = esc_attr($field_value);
}
// honorificSuffix
$field_value = amt_bp_get_profile_field_data('honorific_suffix', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['honorificSuffix'] = esc_attr($field_value);
}
// gender
$field_value = amt_bp_get_profile_field_data('gender', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['gender'] = esc_attr($field_value);
}
// nationality
$field_value = amt_bp_get_profile_field_data('nationality', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['nationality'] = array();
$metadata_arr['nationality']['@type'] = 'Country';
$metadata_arr['nationality']['name'] = esc_attr($field_value);
}
// telephone
$field_value = amt_bp_get_profile_field_data('telephone', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['telephone'] = esc_attr($field_value);
}
// faxNumber
$field_value = amt_bp_get_profile_field_data('fax', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['faxNumber'] = esc_attr($field_value);
}
// email
$field_value = amt_bp_get_profile_field_data('email', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['email'] = 'mailto:' . esc_attr($field_value);
}
// jobTitle
$field_value = amt_bp_get_profile_field_data('job_title', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['jobTitle'] = esc_attr($field_value);
}
// worksFor
$field_value = amt_bp_get_profile_field_data('works_for', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$metadata_arr['worksFor'] = array();
$metadata_arr['worksFor']['@type'] = 'Organization';
$metadata_arr['worksFor']['name'] = esc_attr($field_value);
}
// worksFor URL
$field_value = amt_bp_get_profile_field_data('works_for_url', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
if (!array_key_exists('worksFor', $metadata_arr) || !is_array($metadata_arr['worksFor'])) {
$metadata_arr['worksFor'] = array();
$metadata_arr['worksFor']['@type'] = 'Organization';
}
$metadata_arr['worksFor']['url'] = esc_attr($field_value);
}
// Home Location Geo Coordinates
// home latitude
$latitude = '';
$field_value = amt_bp_get_profile_field_data('home_latitude', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$latitude = esc_attr($field_value);
}
// home longitude
$longitude = '';
$field_value = amt_bp_get_profile_field_data('home_longitude', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$longitude = esc_attr($field_value);
}
if (!empty($latitude) && !empty($longitude)) {
$metadata_arr['homeLocation'] = array();
$metadata_arr['homeLocation']['@type'] = 'Place';
$metadata_arr['homeLocation']['latitude'] = esc_attr($latitude);
$metadata_arr['homeLocation']['longitude'] = esc_attr($longitude);
}
// Work Location Geo Coordinates
// work latitude
$latitude = '';
$field_value = amt_bp_get_profile_field_data('work_latitude', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$latitude = esc_attr($field_value);
}
// work longitude
$longitude = '';
$field_value = amt_bp_get_profile_field_data('work_longitude', $user_id, $xprofile_field_map, $xprofile_public_fields);
$field_value = sanitize_text_field($field_value);
if (!empty($field_value)) {
$longitude = esc_attr($field_value);
}
if (!empty($latitude) && !empty($longitude)) {
$metadata_arr['workLocation'] = array();
$metadata_arr['workLocation']['@type'] = 'Place';
$metadata_arr['workLocation']['latitude'] = esc_attr($latitude);
$metadata_arr['workLocation']['longitude'] = esc_attr($longitude);
}
}
}
// Allow filtering of the generated metadata
// Customize with: add_filter('amt_buddypress_jsonld_schemaorg_extra', 'my_function', 10, 5);
$metadata_arr = apply_filters('amt_buddypress_jsonld_schemaorg_extra', $metadata_arr, $post, $options, $attachments, $embedded_media);
return $metadata_arr;
}
/**
* Return an array of Schema.org metatags suitable for the author object of
* the content. Accepts the $post object as argument.
*/
function amt_get_schemaorg_author_metatags($author_id)
{
//$author_obj = get_user_by( 'id', $author_id );
$metadata_arr = array();
// name
$display_name = get_the_author_meta('display_name', $author_id);
$metadata_arr[] = '<meta itemprop="name" content="' . esc_attr($display_name) . '" />';
// description
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field(amt_sanitize_description(get_the_author_meta('description', $author_id)));
if (!empty($author_description)) {
$metadata_arr[] = '<meta itemprop="description" content="' . esc_attr($author_description) . '" />';
}
// Profile Image
$author_email = sanitize_email(get_the_author_meta('user_email', $author_id));
$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');
$metadata_arr[] = '<meta itemprop="image" content="' . esc_url_raw($avatar_url) . '" />';
}
// url
// The URL to the author archive is added as the url.
$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_author_posts_url($author_id)) . '" />';
// sameAs
// Social Profile Links are added as sameAs properties
// Those from the WordPress User Profile page are used.
// Google+ Author
$googleplus_author_url = get_the_author_meta('amt_googleplus_author_profile_url', $author_id);
if (!empty($googleplus_author_url)) {
$metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw($googleplus_author_url, array('http', 'https')) . '" />';
}
// Facebook
$facebook_author_url = get_the_author_meta('amt_facebook_author_profile_url', $author_id);
if (!empty($facebook_author_url)) {
$metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw($facebook_author_url, array('http', 'https')) . '" />';
}
// Twitter
$twitter_author_username = get_the_author_meta('amt_twitter_author_username', $author_id);
if (!empty($twitter_author_username)) {
$metadata_arr[] = '<meta itemprop="sameAs" content="https://twitter.com/' . esc_attr($twitter_author_username) . '" />';
}
// The User URL as set by the user in the WordPress User Profile page.
$user_url = get_the_author_meta('user_url', $author_id);
if (!empty($user_url)) {
$metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw($user_url, array('http', 'https')) . '" />';
}
// Allow filtering of the Author meta tags
$metadata_arr = apply_filters('amt_schemaorg_author_extra', $metadata_arr);
return $metadata_arr;
}
