function amt_user_extra_fields_show($user)
{
// Use a nonce field for verification
wp_nonce_field(plugin_basename(AMT_PLUGIN_FILE), 'amt_noncename');
// Get the Metadata metabox permissions (filtered)
$metabox_permissions = amt_get_metadata_metabox_permissions();
// Get the Add-Meta-Tags options.
$options = amt_get_options();
// Display the meta box HTML code.
$metabox_has_features = false;
print '
<!-- #add-meta-tags-settings is required by the media selector -->
<span id="add-meta-tags-settings">
<h3>' . __('Add-Meta-Tags', 'add-meta-tags') . '</h3>
<table class="form-table">
<tbody>
';
// per post full meta tags
// Full meta tags box permission check (can be user customized via filter).
if ($options['metabox_user_enable_full_metatags'] == '1' && current_user_can($metabox_permissions['user_full_metatags_box_capability'])) {
$metabox_has_features = true;
// Retrieve the field data from the database.
$custom_full_metatags_value = amt_get_user_meta_full_metatags($user->ID);
print '
<tr class="form-field user-amt_custom_full_metatags-wrap">
<th scope="row"><label for="amt_custom_full_metatags">' . __('Full meta tags', 'add-meta-tags') . '</label></th>
<td>
<textarea class="large-text code" style="width: 99%" id="amt_custom_full_metatags" name="amt_custom_full_metatags" cols="50" rows="6" >' . stripslashes($custom_full_metatags_value) . '</textarea>
<p class="description">
' . __('Provide the full XHTML code of extra <a target="_blank" href="http://en.wikipedia.org/wiki/Meta_element" target="_blank"><code>meta</code></a> and <code>link</code> <a target="_blank" href="https://en.wikipedia.org/wiki/HTML_element">HTML elements</a>. To automatically add paging information to URLs, append the <code>PAGEINFO</code> placeholder. For example:', 'add-meta-tags') . '
<br /><br />
<code><meta name="robots" content="noodp,noarchive,notranslate,noimageindex" /></code>
<br />
<code><link rel="prefetch" href="http://www.example.org/landing-page.html" /></code>
<br />
<code><link rel="alternate" hreflang="el" href="http://example.org/section/multimedia/PAGEINFO" /></code>
<br />
</p>
</td>
</tr>
';
}
// Image URL (global override)
// 'image_url' box permission check (can be user customized via filter).
if ($options['metabox_user_enable_image_url'] == '1' && current_user_can($metabox_permissions['user_image_url_box_capability'])) {
$metabox_has_features = true;
// Retrieve the field data from the database.
$custom_image_url_value = amt_get_user_meta_image_url($user->ID);
print '
<tr class="form-field user-amt_custom_image_url-wrap">
<th scope="row"><label for="amt_custom_image_url">' . __('Image URL', 'add-meta-tags') . '</label></th>
<td>
<input type="text" class="code" style="width: 99%" size="40" id="amt_custom_image_url" name="amt_custom_image_url" value="' . amt_esc_id_or_url_notation(stripslashes($custom_image_url_value)) . '" />
<span id="amt-image-selector-button" class="amt-image-selector-button wp-media-buttons-icon loadmediawindow button updatemeta button-small">' . __('Select image', 'add-meta-tags') . '</span>
<br />
<p class="description">
' . __('Enter an absolute image URL in order to enforce the use of this image in the metadata. To specify the image dimensions you can use the special notation <code>URL,WIDTHxHEIGHT</code>.', 'add-meta-tags') . '
' . __('Alternatively, you can select an image by pressing the <em>Select image</em> button.', 'add-meta-tags') . '
<br />
</p>
';
// Image preview
$image_data = amt_get_image_data(amt_esc_id_or_url_notation(stripslashes($custom_image_url_value)));
$img_html = '';
if (is_numeric($image_data['id'])) {
$main_size_meta = wp_get_attachment_image_src($image_data['id'], 'medium');
$img_html = '<img src="' . esc_url($main_size_meta[0]) . '" width="' . esc_attr($main_size_meta[1]) . '" height="' . esc_attr($main_size_meta[2]) . '" />';
} elseif (!is_null($image_data['url'])) {
$img_html = '<img src="' . esc_url($image_data['url']) . '" width="' . esc_attr($image_data['width']) . '" height="' . esc_attr($image_data['height']) . '" />';
}
if (!empty($img_html)) {
print '
<p>' . __('Image preview', 'add-meta-tags') . ':</p>
<br />
<div id="amt-image-preview" class="amt-image-preview">' . $img_html . '</div>
';
}
print '
</td>
</tr>
';
}
print '
</tbody>
</table>
';
// If no features have been enabled, print an informative message
if ($metabox_has_features === false) {
print '
<p>' . __(sprintf('No features have been enabled for this metabox in the Add-Meta-Tags <a href="%s">settings</a> or you do not have enough permissions to access the available features.', admin_url('options-general.php?page=add-meta-tags-options')), 'add-meta-tags') . '</p>
';
}
print '
</span> <!-- #add-meta-tags-settings -->
';
}
/**
* 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 $metadata_arr;
}
function amt_get_term_image_info($size = 'thumbnail', $term_id = null)
{
// Initial checks
if (empty($term_id)) {
if (is_category() || is_tag() || is_tax()) {
// The post object is the term object
$post = amt_get_queried_object();
if (!isset($post->term_id)) {
return false;
}
$term_id = $post->term_id;
} else {
return false;
}
} elseif (!is_numeric($term_id)) {
return false;
}
// Get data from Custom Field
$custom_image_url_value = amt_get_term_meta_image_url($term_id);
// Get image data
$image_data = amt_get_image_data(amt_esc_id_or_url_notation(stripslashes($custom_image_url_value)));
// Construct image info array
$image_info = array('url' => null, 'width' => null, 'height' => null);
if (is_numeric($image_data['id'])) {
$main_size_meta = wp_get_attachment_image_src($image_data['id'], $size);
if (empty($main_size_meta)) {
return false;
}
$image_info['url'] = $main_size_meta[0];
$image_info['width'] = $main_size_meta[1];
$image_info['height'] = $main_size_meta[2];
} elseif (!is_null($image_data['url'])) {
$image_info['url'] = $main_size_meta[0];
$image_info['width'] = $main_size_meta[1];
$image_info['height'] = $main_size_meta[2];
} else {
return false;
}
return $image_info;
}
/**
* Generate Twitter Cards metadata for the content pages.
*/
function amt_add_twitter_cards_metadata_head($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 $metadata_arr;
}
/**
* Generates Opengraph metadata.
*
* Currently for:
* - home page
* - author archive
* - content
*/
function amt_add_opengraph_metadata_head($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.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($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.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($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.
$image_data = amt_get_image_data(amt_get_term_meta_image_url($tax_term_object->term_id));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_index', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($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)) {
$image_data = amt_get_image_data($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
$image_data = amt_get_image_data(amt_get_user_meta_image_url($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)) {
$image_data = amt_get_image_data($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.
$image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
if (!empty($image_data)) {
$image_size = apply_filters('amt_image_size_content', 'full');
$image_meta_tags = amt_get_opengraph_image_metatags($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;
}