function simple_video_embedder_video_thumbnail_markup_filter($markup, $post_id)
{
if (function_exists('p75HasVideo')) {
if (p75HasVideo($post_id)) {
$markup .= ' ' . p75GetVideo($post_id);
}
}
return $markup;
}
function get_video_thumbnail($post_id = null)
{
// Get the post ID if none is provided
if ($post_id == null or $post_id == '') {
$post_id = get_the_ID();
}
// Check to see if thumbnail has already been found and still exists as a file
if (($thumbnail_meta = get_post_meta($post_id, '_video_thumbnail', true)) != '' && wp_remote_retrieve_response_code(wp_remote_head($thumbnail_meta)) === '200') {
return $thumbnail_meta;
} else {
// Gets the post's content
$post_array = get_post($post_id);
$markup = $post_array->post_content;
$markup = apply_filters('the_content', $markup);
$new_thumbnail = null;
// Simple Video Embedder Compatibility
if (function_exists('p75HasVideo')) {
if (p75HasVideo($post_id)) {
$markup = p75GetVideo($post_id);
}
}
// Checks for the old standard YouTube embed
preg_match('#<object[^>]+>.+?https?://www.youtube.com/[ve]/([A-Za-z0-9\\-_]+).+?</object>#s', $markup, $matches);
// More comprehensive search for YouTube embed, redundant but necessary until more testing is completed
if (!isset($matches[1])) {
preg_match('#https?://www.youtube.com/[ve]/([A-Za-z0-9\\-_]+)#s', $markup, $matches);
}
// Checks for YouTube iframe, the new standard since at least 2011
if (!isset($matches[1])) {
preg_match('#https?://www.youtube.com/embed/([A-Za-z0-9\\-_]+)#s', $markup, $matches);
}
// Checks for any YouTube URL. After http(s) support a or v for Youtube Lyte and v or vh for Smart Youtube plugin
if (!isset($matches[1])) {
preg_match('#(?:https?(?:a|vh?)?://)?(?:www\\.)?youtube.com/watch\\?v=([A-Za-z0-9\\-_]+)#s', $markup, $matches);
}
// Checks for any shortened youtu.be URL. After http(s) a or v for Youtube Lyte and v or vh for Smart Youtube plugin
if (!isset($matches[1])) {
preg_match('#(?:https?(?:a|vh?)?://)?youtu.be/([A-Za-z0-9\\-_]+)#s', $markup, $matches);
}
// Checks for YouTube Lyte
if (!isset($matches[1]) && function_exists('lyte_parse')) {
preg_match('#<div class="lyte" id="([A-Za-z0-9\\-_]+)"#s', $markup, $matches);
}
// If we've found a YouTube video ID, create the thumbnail URL
if (isset($matches[1])) {
$youtube_thumbnail = 'http://img.youtube.com/vi/' . $matches[1] . '/0.jpg';
// Check to make sure it's an actual thumbnail
if (!function_exists('curl_init')) {
$new_thumbnail = $youtube_thumbnail;
} else {
$ch = curl_init($youtube_thumbnail);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_exec($ch);
$retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
// $retcode > 400 -> not found, $retcode = 200, found.
curl_close($ch);
if ($retcode == 200) {
$new_thumbnail = $youtube_thumbnail;
}
}
}
// Vimeo
if ($new_thumbnail == null) {
// Standard embed code
preg_match('#<object[^>]+>.+?http://vimeo.com/moogaloop.swf\\?clip_id=([A-Za-z0-9\\-_]+)&.+?</object>#s', $markup, $matches);
// Find Vimeo embedded with iframe code
if (!isset($matches[1])) {
preg_match('#http://player.vimeo.com/video/([0-9]+)#s', $markup, $matches);
}
// If we still haven't found anything, check for Vimeo embedded with JR_embed
if (!isset($matches[1])) {
preg_match('#\\[vimeo id=([A-Za-z0-9\\-_]+)]#s', $markup, $matches);
}
// If we still haven't found anything, check for Vimeo URL
if (!isset($matches[1])) {
preg_match('#(?:http://)?(?:www\\.)?vimeo.com/([A-Za-z0-9\\-_]+)#s', $markup, $matches);
}
// If we still haven't found anything, check for Vimeo shortcode
if (!isset($matches[1])) {
preg_match('#\\[vimeo clip_id="([A-Za-z0-9\\-_]+)"[^>]*]#s', $markup, $matches);
}
if (!isset($matches[1])) {
preg_match('#\\[vimeo video_id="([A-Za-z0-9\\-_]+)"[^>]*]#s', $markup, $matches);
}
// Now if we've found a Vimeo ID, let's set the thumbnail URL
if (isset($matches[1])) {
$vimeo_thumbnail = getVimeoInfo($matches[1], $info = 'thumbnail_large');
if (is_wp_error($vimeo_thumbnail)) {
return $vimeo_thumbnail;
} else {
if (isset($vimeo_thumbnail)) {
$new_thumbnail = $vimeo_thumbnail;
}
}
}
}
// Blip.tv
if ($new_thumbnail == null) {
// Blip.tv embed URL
preg_match('#http://blip.tv/play/([A-Za-z0-9]+)#s', $markup, $matches);
// Now if we've found a Blip.tv embed URL, let's set the thumbnail URL
if (isset($matches[1])) {
$blip_thumbnail = getBliptvInfo($matches[1]);
if (is_wp_error($blip_thumbnail)) {
return $blip_thumbnail;
} else {
if (isset($blip_thumbnail)) {
$new_thumbnail = $blip_thumbnail;
}
}
}
}
// Justin.tv
if ($new_thumbnail == null) {
// Justin.tv archive ID
preg_match('#archive_id=([0-9]+)#s', $markup, $matches);
// Now if we've found a Justin.tv archive ID, let's set the thumbnail URL
if (isset($matches[1])) {
$justin_thumbnail = getJustintvInfo($matches[1]);
$new_thumbnail = $justin_thumbnail;
}
}
// Dailymotion
if ($new_thumbnail == null) {
// Dailymotion flash
preg_match('#<object[^>]+>.+?http://www.dailymotion.com/swf/video/([A-Za-z0-9]+).+?</object>#s', $markup, $matches);
// Dailymotion url
if (!isset($matches[1])) {
preg_match('#(?:https?://)?(?:www\\.)?dailymotion.com/video/([A-Za-z0-9]+)#s', $markup, $matches);
}
// Dailymotion iframe
if (!isset($matches[1])) {
preg_match('#https?://www.dailymotion.com/embed/video/([A-Za-z0-9]+)#s', $markup, $matches);
}
// Now if we've found a Dailymotion video ID, let's set the thumbnail URL
if (isset($matches[1])) {
$dailymotion_thumbnail = getDailyMotionThumbnail($matches[1]);
if (is_wp_error($dailymotion_thumbnail)) {
return $dailymotion_thumbnail;
} else {
if (isset($dailymotion_thumbnail)) {
$new_thumbnail = strtok($dailymotion_thumbnail, '?');
}
}
}
}
// Metacafe
if ($new_thumbnail == null) {
// Find ID from Metacafe embed url
preg_match('#http://www.metacafe.com/fplayer/([A-Za-z0-9\\-_]+)/#s', $markup, $matches);
// Now if we've found a Metacafe video ID, let's set the thumbnail URL
if (isset($matches[1])) {
$metacafe_thumbnail = getMetacafeThumbnail($matches[1]);
if (is_wp_error($metacafe_thumbnail)) {
return $metacafe_thumbnail;
} else {
if (isset($metacafe_thumbnail)) {
$new_thumbnail = strtok($metacafe_thumbnail, '?');
}
}
}
}
// Return the new thumbnail variable and update meta if one is found
if ($new_thumbnail != null) {
// Save as Attachment if enabled
if (get_option('video_thumbnails_save_media') == 1) {
$error = '';
$ch = curl_init();
$timeout = 0;
curl_setopt($ch, CURLOPT_URL, $new_thumbnail);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
// Return an error for curl_error() processing if HTTP response code >= 400
$image_contents = curl_exec($ch);
if (curl_error($ch) != null || $image_contents == null) {
$curl_error = '';
if (curl_error($ch) != null) {
$curl_error = ": <code>" . curl_error($ch) . "</code>";
}
$error = new WP_Error('thumbnail_retrieval', __("Error retrieving a thumbnail from the URL <a href=\"" . $new_thumbnail . "\">" . $new_thumbnail . "</a>" . $curl_error . ". If opening that URL in your web browser shows an image, the problem may be related to your web server and might be something your server administrator can solve."));
}
curl_close($ch);
if ($error != null) {
return $error;
} else {
$upload = wp_upload_bits(basename($new_thumbnail), null, $image_contents);
$new_thumbnail = $upload['url'];
$filename = $upload['file'];
$wp_filetype = wp_check_filetype(basename($filename), null);
$attachment = array('post_mime_type' => $wp_filetype['type'], 'post_title' => get_the_title($post_id), 'post_content' => '', 'post_status' => 'inherit');
$attach_id = wp_insert_attachment($attachment, $filename, $post_id);
// you must first include the image.php file
// for the function wp_generate_attachment_metadata() to work
require_once ABSPATH . "wp-admin" . '/includes/image.php';
$attach_data = wp_generate_attachment_metadata($attach_id, $filename);
wp_update_attachment_metadata($attach_id, $attach_data);
}
}
// Add hidden custom field with thumbnail URL
if (!update_post_meta($post_id, '_video_thumbnail', $new_thumbnail)) {
add_post_meta($post_id, '_video_thumbnail', $new_thumbnail, true);
}
// Set attachment as featured image if enabled
if (get_option('video_thumbnails_set_featured') == 1 && get_option('video_thumbnails_save_media') == 1 && get_post_meta($post_id, '_thumbnail_id', true) == '') {
if (!update_post_meta($post_id, '_thumbnail_id', $attach_id)) {
add_post_meta($post_id, '_thumbnail_id', $attach_id, true);
}
}
}
return $new_thumbnail;
}
}
