function jetpack_og_get_image($width = 200, $height = 200, $max_images = 4)
{
// Facebook requires thumbnails to be a minimum of 200x200
$image = '';
if (is_singular() && !is_home()) {
global $post;
$image = '';
// Grab obvious image if $post is an attachment page for an image
if (is_attachment($post->ID) && 'image' == substr($post->post_mime_type, 0, 5)) {
$image = wp_get_attachment_url($post->ID);
}
// Attempt to find something good for this post using our generalized PostImages code
if (!$image && class_exists('Jetpack_PostImages')) {
$post_images = Jetpack_PostImages::get_images($post->ID, array('width' => $width, 'height' => $height));
if ($post_images && !is_wp_error($post_images)) {
$image = array();
foreach ((array) $post_images as $post_image) {
$image['src'] = $post_image['src'];
if (isset($post_image['src_width'], $post_image['src_height'])) {
$image['width'] = $post_image['src_width'];
$image['height'] = $post_image['src_height'];
}
}
}
}
} else {
if (is_author()) {
$author = get_queried_object();
if (function_exists('get_avatar_url')) {
// Prefer the core function get_avatar_url() if available, WP 4.2+
$image['src'] = get_avatar_url($author->user_email, array('size' => $width));
} else {
$has_filter = has_filter('pre_option_show_avatars', '__return_true');
if (!$has_filter) {
add_filter('pre_option_show_avatars', '__return_true');
}
$avatar = get_avatar($author->user_email, $width);
if (!$has_filter) {
remove_filter('pre_option_show_avatars', '__return_true');
}
if (!empty($avatar) && !is_wp_error($avatar)) {
if (preg_match('/src=["\']([^"\']+)["\']/', $avatar, $matches)) {
}
$image['src'] = wp_specialchars_decode($matches[1], ENT_QUOTES);
}
}
}
}
if (empty($image)) {
$image = array();
} else {
if (!is_array($image)) {
$image = array('src' => $image);
}
}
// First fall back, blavatar
if (empty($image) && function_exists('blavatar_domain')) {
$blavatar_domain = blavatar_domain(site_url());
if (blavatar_exists($blavatar_domain)) {
$image['src'] = blavatar_url($blavatar_domain, 'img', $width, false, true);
$image['width'] = $width;
$image['height'] = $height;
}
}
// Second fall back, Site Logo
if (empty($image) && (function_exists('jetpack_has_site_logo') && jetpack_has_site_logo())) {
$image['src'] = jetpack_get_site_logo('url');
$image_dimensions = jetpack_get_site_logo_dimensions();
if (!empty($image_dimensions)) {
$image['width'] = $image_dimensions['width'];
$image['height'] = $image_dimensions['height'];
}
}
// Third fall back, Site Icon
if (empty($image) && (function_exists('jetpack_has_site_icon') && jetpack_has_site_icon())) {
$image['src'] = jetpack_site_icon_url(null, '512');
$image['width'] = '512';
$image['height'] = '512';
}
// Fourth fall back, Core Site Icon. Added in WP 4.3.
if (empty($image) && (function_exists('has_site_icon') && has_site_icon())) {
$image['src'] = get_site_icon_url(null, '512');
}
// Finally fall back, blank image
if (empty($image)) {
/**
* Filter the default Open Graph Image tag, used when no Image can be found in a post.
*
* @since 3.0.0
*
* @param string $str Default Image URL.
*/
$image['src'] = apply_filters('jetpack_open_graph_image_default', 'https://s0.wp.com/i/blank.jpg');
}
return $image;
}
function jetpack_og_get_image($width = 200, $height = 200, $max_images = 4)
{
// Facebook requires thumbnails to be a minimum of 200x200
$image = '';
if (is_singular() && !is_home()) {
global $post;
$image = '';
// Attempt to find something good for this post using our generalized PostImages code
if (class_exists('Jetpack_PostImages')) {
$post_images = Jetpack_PostImages::get_images($post->ID, array('width' => $width, 'height' => $height));
if ($post_images && !is_wp_error($post_images)) {
$image = array();
foreach ((array) $post_images as $post_image) {
$image['src'] = $post_image['src'];
if (isset($post_image['src_width'], $post_image['src_height'])) {
$image['width'] = $post_image['src_width'];
$image['height'] = $post_image['src_height'];
}
}
}
}
} else {
if (is_author()) {
$author = get_queried_object();
if (function_exists('get_avatar_url')) {
// Prefer the core function get_avatar_url() if available, WP 4.2+
$image['src'] = get_avatar_url($author->user_email, array('size' => $width));
} else {
$has_filter = has_filter('pre_option_show_avatars', '__return_true');
if (!$has_filter) {
add_filter('pre_option_show_avatars', '__return_true');
}
$avatar = get_avatar($author->user_email, $width);
if (!$has_filter) {
remove_filter('pre_option_show_avatars', '__return_true');
}
if (!empty($avatar) && !is_wp_error($avatar)) {
if (preg_match('/src=["\']([^"\']+)["\']/', $avatar, $matches)) {
}
$image['src'] = wp_specialchars_decode($matches[1], ENT_QUOTES);
}
}
}
}
if (empty($image)) {
$image = array();
} else {
if (!is_array($image)) {
$image = array('src' => $image);
}
}
// First fall back, blavatar
if (empty($image) && function_exists('blavatar_domain')) {
$blavatar_domain = blavatar_domain(site_url());
if (blavatar_exists($blavatar_domain)) {
$image['src'] = blavatar_url($blavatar_domain, 'img', $width, false, true);
$image['width'] = $width;
$image['height'] = $height;
}
}
// Second fall back, Site Logo
if (empty($image) && (function_exists('jetpack_has_site_logo') && jetpack_has_site_logo())) {
$image['src'] = jetpack_get_site_logo('url');
$image_dimensions = jetpack_get_site_logo_dimensions();
if (!empty($image_dimensions)) {
$image['width'] = $image_dimensions['width'];
$image['height'] = $image_dimensions['height'];
}
}
// Third fall back, Site Icon
if (empty($image) && (function_exists('jetpack_has_site_icon') && jetpack_has_site_icon())) {
$image['src'] = jetpack_site_icon_url(null, '512');
$image['width'] = '512';
$image['height'] = '512';
}
// Fourth fall back, Core Site Icon. Added in WP 4.3.
if (empty($image) && (function_exists('has_site_icon') && has_site_icon())) {
$image['src'] = get_site_icon_url(null, '512');
}
// Finally fall back, blank image
// SLIMPACK: Use built-in blank placeholder.
if (empty($image)) {
$image['src'] = apply_filters('jetpack_open_graph_image_default', plugins_url('_inc/blank.jpg', __FILE__));
}
return $image;
}