Get an array containing a collection of possible images for this post, stopping once we hit a method
that returns something useful.
| static public get_images ( integer $post_id, array $args = [] ) : Array | ||
| $post_id | integer | |
| $args | array | Optional args, see defaults list for details |
| return | Array | containing images that would be good for representing this post |
function jetpack_og_get_image($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;
}
/**
* Print an XML sitemap conforming to the Sitemaps.org protocol.
* Outputs an XML list of up to the latest 1000 posts.
*
* @module sitemaps
*
* @link http://sitemaps.org/protocol.php Sitemaps.org protocol.
*/
function jetpack_print_sitemap()
{
global $wpdb, $post;
$xml = get_transient('jetpack_sitemap');
if ($xml) {
header('Content-Type: ' . jetpack_sitemap_content_type(), true);
echo $xml;
die;
}
// Compatibility with PHP 5.3 and older
if (!defined('ENT_XML1')) {
define('ENT_XML1', 16);
}
/**
* Filter the post types that will be included in sitemap.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param array $post_types Array of post types.
*/
$post_types = apply_filters('jetpack_sitemap_post_types', array('post', 'page'));
$post_types_in = array();
foreach ((array) $post_types as $post_type) {
$post_types_in[] = $wpdb->prepare('%s', $post_type);
}
$post_types_in = join(",", $post_types_in);
// use direct query instead because get_posts was acting too heavy for our needs
//$posts = get_posts( array( 'numberposts'=>1000, 'post_type'=>$post_types, 'post_status'=>'published' ) );
$posts = $wpdb->get_results("SELECT ID, post_type, post_modified_gmt, comment_count FROM {$wpdb->posts} WHERE post_status='publish' AND post_type IN ({$post_types_in}) ORDER BY post_modified_gmt DESC LIMIT 1000");
if (empty($posts)) {
status_header(404);
}
header('Content-Type: ' . jetpack_sitemap_content_type());
$initstr = jetpack_sitemap_initstr(get_bloginfo('charset'));
$tree = simplexml_load_string($initstr);
// If we did not get a valid string, force UTF-8 and try again.
if (false === $tree) {
$initstr = jetpack_sitemap_initstr('UTF-8');
$tree = simplexml_load_string($initstr);
}
unset($initstr);
$latest_mod = '';
foreach ($posts as $post) {
setup_postdata($post);
/**
* Filter condition to allow skipping specific posts in sitemap.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param bool $skip Current boolean. False by default, so no post is skipped.
* @param WP_POST $post Current post object.
*/
if (apply_filters('jetpack_sitemap_skip_post', false, $post)) {
continue;
}
$post_latest_mod = null;
$url = array('loc' => esc_url(get_permalink($post->ID)));
// If this post is configured to be the site home, skip since it's added separately later
if (untrailingslashit(get_permalink($post->ID)) == untrailingslashit(get_option('home'))) {
continue;
}
// Mobile node specified in http://support.google.com/webmasters/bin/answer.py?hl=en&answer=34648
$url['mobile:mobile'] = '';
// Image node specified in http://support.google.com/webmasters/bin/answer.py?hl=en&answer=178636
// These attachments were produced with batch SQL earlier in the script
if (!post_password_required($post->ID)) {
$media = array();
$methods = array('from_thumbnail' => false, 'from_slideshow' => false, 'from_gallery' => false, 'from_attachment' => false, 'from_html' => false);
foreach ($methods as $method => $value) {
$methods[$method] = true;
$images_collected = Jetpack_PostImages::get_images($post->ID, $methods);
if (is_array($images_collected)) {
$media = array_merge($media, $images_collected);
}
$methods[$method] = false;
}
$images = array();
foreach ($media as $item) {
if (!isset($item['type']) || 'image' != $item['type']) {
continue;
}
$one_image = array();
if (isset($item['src'])) {
$one_image['image:loc'] = esc_url($item['src']);
$one_image['image:title'] = sanitize_title_with_dashes($name = pathinfo($item['src'], PATHINFO_FILENAME));
}
$images[] = $one_image;
}
if (!empty($images)) {
$url['image:image'] = $images;
}
}
if ($post->post_modified_gmt && $post->post_modified_gmt != '0000-00-00 00:00:00') {
$post_latest_mod = $post->post_modified_gmt;
}
if ($post->comment_count > 0) {
// last modified based on last comment
$latest_comment_datetime = jetpack_get_approved_comments_max_datetime($post->ID);
if (!empty($latest_comment_datetime)) {
if (is_null($post_latest_mod) || $latest_comment_datetime > $post_latest_mod) {
$post_latest_mod = $latest_comment_datetime;
}
}
unset($latest_comment_datetime);
}
if (!empty($post_latest_mod)) {
$latest_mod = max($latest_mod, $post_latest_mod);
$url['lastmod'] = jetpack_w3cdate_from_mysql($post_latest_mod);
}
unset($post_latest_mod);
if ($post->post_type == 'page') {
$url['changefreq'] = 'weekly';
$url['priority'] = '0.6';
// set page priority above default priority of 0.5
} else {
$url['changefreq'] = 'monthly';
}
/**
* Filter associative array with data to build <url> node and its descendants for current post.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param array $url Data to build parent and children nodes for current post.
* @param int $post_id Current post ID.
*/
$url_node = apply_filters('jetpack_sitemap_url', $url, $post->ID);
jetpack_sitemap_array_to_simplexml(array('url' => $url_node), $tree);
unset($url);
}
wp_reset_postdata();
$blog_home = array('loc' => esc_url(get_option('home')), 'changefreq' => 'daily', 'priority' => '1.0');
if (!empty($latest_mod)) {
$blog_home['lastmod'] = jetpack_w3cdate_from_mysql($latest_mod);
header('Last-Modified:' . mysql2date('D, d M Y H:i:s', $latest_mod, 0) . ' GMT');
}
/**
* Filter associative array with data to build <url> node and its descendants for site home.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param array $blog_home Data to build parent and children nodes for site home.
*/
$url_node = apply_filters('jetpack_sitemap_url_home', $blog_home);
jetpack_sitemap_array_to_simplexml(array('url' => $url_node), $tree);
unset($blog_home);
/**
* Filter data before rendering it as XML.
*
* @module sitemaps
*
* @since 3.9.0
*
* @param SimpleXMLElement $tree Data tree for sitemap.
* @param string $latest_mod Date of last modification.
*/
$tree = apply_filters('jetpack_print_sitemap', $tree, $latest_mod);
$xml = $tree->asXML();
unset($tree);
if (!empty($xml)) {
set_transient('jetpack_sitemap', $xml, DAY_IN_SECONDS);
echo $xml;
}
die;
}
function jetpack_og_get_image($width = 200, $height = 200, $max_images = 4)
{
// Facebook requires thumbnails to be a minimum of 200x200
$image = '';
if (is_singular() && !is_home() && !is_front_page()) {
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[] = $post_image['src'];
}
}
}
} else {
if (is_author()) {
$author = get_queried_object();
if (function_exists('get_avatar_url')) {
$avatar = get_avatar_url($author->user_email, $width);
if (!empty($avatar)) {
if (is_array($avatar)) {
$image = $avatar[0];
} else {
$image = $avatar;
}
}
} 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)) {
}
$image = wp_specialchars_decode($matches[1], ENT_QUOTES);
}
}
}
}
// Fallback to Blavatar if available
if (function_exists('blavatar_domain')) {
$blavatar_domain = blavatar_domain(site_url());
if (empty($image) && blavatar_exists($blavatar_domain)) {
$image = blavatar_url($blavatar_domain, 'img', $width);
}
}
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[] = $post_image['src'];
}
}
}
} 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+
$image = get_avatar_url($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)) {
}
$image = wp_specialchars_decode($matches[1], ENT_QUOTES);
}
}
}
}
if (empty($image)) {
$image = array();
} else {
if (!is_array($image)) {
$image = array($image);
}
}
// First fall back, blavatar
if (empty($image) && function_exists('blavatar_domain')) {
$blavatar_domain = blavatar_domain(site_url());
if (blavatar_exists($blavatar_domain)) {
$image[] = blavatar_url($blavatar_domain, 'img', $width);
}
}
// Second fall back, Site Logo
if (empty($image) && (function_exists('jetpack_has_site_logo') && jetpack_has_site_logo())) {
$image[] = jetpack_get_site_logo('url');
}
// Third fall back, Site Icon
if (empty($image) && (function_exists('jetpack_has_site_icon') && jetpack_has_site_icon())) {
$image[] = jetpack_site_icon_url(null, '512');
}
// Fourth fall back, blank image
if (empty($image)) {
$image[] = apply_filters('jetpack_open_graph_image_default', 'https://s0.wp.com/i/blank.jpg');
}
return $image;
}