<?php
/**
* Class for handling embedded media in gallery
*
*/
class WDWLibraryEmbed {
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// Events //
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// Constants //
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////////////////////////////////////////////////////////////////////////////////////////
// Variables //
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// Constructor & Destructor //
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public function __construct() {
}
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// Public Methods //
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// Getters & Setters //
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public function get_provider($oembed, $url, $args = '') {
$provider = false;
if (!isset($args['discover'])) {
$args['discover'] = true;
}
foreach ($oembed->providers as $matchmask => $data ) {
list( $providerurl, $regex ) = $data;
// Turn the asterisk-type provider URLs into regex
if ( !$regex ) {
$matchmask = '#' . str_replace( '___wildcard___', '(.+)', preg_quote( str_replace( '*', '___wildcard___', $matchmask ), '#' ) ) . '#i';
$matchmask = preg_replace( '|^#http\\\://|', '#https?\://', $matchmask );
}
if ( preg_match( $matchmask, $url ) ) {
$provider = str_replace( '{format}', 'json', $providerurl ); // JSON is easier to deal with than XML
break;
}
}
if ( !$provider && $args['discover'] ) {
$provider = $oembed->discover($url);
}
return $provider;
}
/**
* check host and get data for a given url
* @return encode_json(associative array of data) on success
* @return encode_json(array[false, "error message"]) on failure
*
* EMBED TYPES
*
* EMBED_OEMBED_YOUTUBE_VIDEO
* EMBED_OEMBED_VIMEO_VIDEO
* EMBED_OEMBED_DAILYMOTION_VIDEO
* EMBED_OEMBED_INSTAGRAM_IMAGE
* EMBED_OEMBED_INSTAGRAM_VIDEO
* EMBED_OEMBED_INSTAGRAM_POST
* EMBED_OEMBED_FLICKR_IMAGE
*
* RULES FOR NEW TYPES
*
* 1. begin type name with EMBED_
* 2. if using WP native OEMBED class, add _OEMBED then
* 3. add provider name
* 4. add _VIDEO, _IMAGE FOR embedded media containing only video or image
* 5. add _DIRECT_URL from static URL of image (not implemented yet)
*
*/
public static function add_embed($url) {
$url = sanitize_text_field(urldecode($url));
$embed_type = '';
$host = '';
/*returns this array*/
$embedData = array(
'name' => '',
'description' => '',
'filename' => '',
'url' => '',
'reliative_url' => '',
'thumb_url' => '',
'thumb' => '',
'size' => '',
'filetype' => '',
'date_modified' => '',
'resolution' => '',
'redirect_url' => '');
$accepted_oembeds = array(
'YOUTUBE' => '/youtube/',
'VIMEO' => '/vimeo/',
'FLICKR' => '/flickr/',
'INSTAGRAM' => '/instagram/',
'DAILYMOTION' => '/dailymotion/'
);
/*check if we can embed this using wordpress class WP_oEmbed */
if ( !function_exists( '_wp_oembed_get_object' ) )
include( ABSPATH . WPINC . '/class-oembed.php' );
// get an oembed object
$oembed = _wp_oembed_get_object();
if (method_exists($oembed, 'get_provider')) {
// Since 4.0.0
$provider = $oembed->get_provider($url);
}
else {
$provider = self::get_provider($oembed, $url);
}
foreach ($accepted_oembeds as $oembed_provider => $regex) {
if(preg_match($regex, $provider)==1){
$host = $oembed_provider;
}
}
/*return json_encode($host); for test*/
/*handling oembed cases*/
if($host){
/*instagram is exception*/
/*standard oembed fetching does not return thumbnail_url! so we do it manually*/
if($host == 'INSTAGRAM' && substr($url,-4)!='post' && substr($url,-4!='POST')){
$embed_type = 'EMBED_OEMBED_INSTAGRAM';
$insta_host_and_id= strtok($url, '/')."/".strtok('/')."/".strtok('/')."/".strtok('/');
$insta_host= strtok($url, '/')."/".strtok('/')."/".strtok('/')."/";
$filename = str_replace($insta_host, "", $insta_host_and_id);
$get_embed_data = wp_remote_get("http://api.instagram.com/oembed?url=http://instagram.com/p/".$filename);
if ( is_wp_error( $get_embed_data ) ) {
return json_encode(array("error", "cannot get Instagram data"));
}
$result = json_decode(wp_remote_retrieve_body($get_embed_data));
if(empty($result)){
return json_encode(array("error", wp_remote_retrieve_body($get_embed_data)));
}
list($img_width, $img_height) = @getimagesize('https://instagram.com/p/' . $filename . '/media/?size=l');
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $filename,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => 'https://instagram.com/p/' . $filename . '/media/?size=t',
'thumb' => 'https://instagram.com/p/' . $filename . '/media/?size=t',
'size' => '',
'filetype' => $embed_type,
'date_modified' => date('d F Y, H:i'),
'resolution' => $img_width . " x " . $img_height . " px",
'redirect_url' => ''
);
/*get instagram post html page, parse its DOM to find video URL*/
$DOM = new DOMDocument;
libxml_use_internal_errors(true);
$html_code = wp_remote_get($url);
if ( is_wp_error( $html_code ) ) {
return json_encode(array("error", "cannot get Instagram data"));
}
$html_body = wp_remote_retrieve_body($html_code);
if(empty($html_body)){
return json_encode(array("error", wp_remote_retrieve_body($html_code)));
}
$DOM->loadHTML($html_body);
$finder = new DomXPath($DOM);
$query = "//meta[@property='og:video']";
$nodes = $finder->query($query);
$node = $nodes->item(0);
if($node){
$length = $node->attributes->length;
for ($i = 0; $i < $length; ++$i) {
$name = $node->attributes->item($i)->name;
$value = $node->attributes->item($i)->value;
if($name == 'content'){
$filename = $value;
}
}
$embedData['filename'] = $filename;
$embedData['filetype'] .= '_VIDEO';
}
else{
$embedData['filetype'] .= '_IMAGE';
}
return json_encode($embedData);
}
if($host == 'INSTAGRAM' && (substr($url,-4)=='post'||substr($url,-4)=='POST')){
/*check if instagram post*/
$url = substr($url,0,-4);
$embed_type = 'EMBED_OEMBED_INSTAGRAM_POST';
parse_str( parse_url( $url, PHP_URL_QUERY ), $my_array_of_vars );
$matches = array();
$filename = '';
$regex = "/^.*?instagram\.com\/p\/(.*?)[\/]?$/";
if(preg_match($regex, $url, $matches)){
$filename = $matches[1];
}
$get_embed_data = wp_remote_get("http://api.instagram.com/oembed?url=http://instagram.com/p/".$filename);
if ( is_wp_error( $get_embed_data ) ) {
return json_encode(array("error", "cannot get Instagram data"));
}
$result = json_decode(wp_remote_retrieve_body($get_embed_data));
if(empty($result)){
return json_encode(array("error", wp_remote_retrieve_body($get_embed_data)));
}
list($img_width, $img_height) = @getimagesize('https://instagram.com/p/' . $filename . '/media/?size=l');
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $filename,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => 'https://instagram.com/p/' . $filename . '/media/?size=t',
'thumb' => 'https://instagram.com/p/' . $filename . '/media/?size=t',
'size' => '',
'filetype' => $embed_type,
'date_modified' => date('d F Y, H:i'),
'resolution' => $img_width . " x " . $img_height . " px",
'redirect_url' => '');
return json_encode($embedData);
}
$result = $oembed->fetch( $provider, $url);
/*no data fetched for a known provider*/
if(!$result){
return json_encode(array("error", "please enter ". $host . " correct single media URL"));
}
else{/*one of known oembed types*/
$embed_type = 'EMBED_OEMBED_'.$host;
switch ($embed_type) {
case 'EMBED_OEMBED_YOUTUBE':
$youtube_regex = "#(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=v\/)[^&\n]+|(?<=v=)[^&\n]+|(?<=youtu.be/)[^&\n]+#";
$matches = array();
preg_match($youtube_regex , $url , $matches);
$filename = $matches[0];
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $filename,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => $result->thumbnail_url,
'thumb' => $result->thumbnail_url,
'size' => '',
'filetype' => $embed_type."_VIDEO",
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
case 'EMBED_OEMBED_VIMEO':
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $result->video_id,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => $result->thumbnail_url,
'thumb' => $result->thumbnail_url,
'size' => '',
'filetype' => $embed_type."_VIDEO",
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
case 'EMBED_OEMBED_FLICKR':
$matches = preg_match('~^.+/(\d+)~',$url,$matches);
$filename = $matches[1];
/*if($result->type =='photo')
$embed_type .= '_IMAGE';
if($result->type =='video')
$embed_type .= '_VIDEO';*/
/*flickr video type not implemented yet*/
$embed_type .= '_IMAGE';
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' =>substr($result->thumbnail_url, 0, -5)."b.jpg",
'url' => $url,
'reliative_url' => $url,
'thumb_url' => $result->thumbnail_url,
'thumb' => $result->thumbnail_url,
'size' => '',
'filetype' => $embed_type,
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
case 'EMBED_OEMBED_DAILYMOTION':
$filename = strtok(basename($url), '_');
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $filename,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => $result->thumbnail_url,
'thumb' => $result->thumbnail_url,
'size' => '',
'filetype' => $embed_type."_VIDEO",
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
case 'EMBED_OEMBED_GETTYIMAGES':
/*not working yet*/
$filename = strtok(basename($url), '_');
$embedData = array(
'name' => htmlspecialchars($result->title),
'description' => htmlspecialchars($result->title),
'filename' => $filename,
'url' => $url,
'reliative_url' => $url,
'thumb_url' => $result->thumbnail_url,
'thumb' => $result->thumbnail_url,
'size' => '',
'filetype' => $embed_type,
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
default:
return json_encode(array("error", "unknown URL host"));
break;
}
}
}/*end of oembed cases*/
else {
/*check for direct image url*/
/*check if something else*/
/*not implemented yet*/
return json_encode(array("error", "unknown URL"));
}
return json_encode(array("error", "unknown URL"));
}
/**
* client side analogue is function spider_display_embed in bwg_embed.js
*
* @param embed_type: string , one of predefined accepted types
* @param embed_id: string, id of media in corresponding host, or url if no unique id system is defined for host
* @param attrs: associative array with html attributes and values format e.g. array('width'=>"100px", 'style'=>"display:inline;")
*
*/
public static function display_embed($embed_type, $embed_id='', $attrs = array()) {
$html_to_insert = '';
switch ($embed_type) {
case 'EMBED_OEMBED_YOUTUBE_VIDEO':
$oembed_youtube_html ='<iframe ';
if($embed_id!=''){
$oembed_youtube_html .= ' src="' . '//www.youtube.com/embed/'. $embed_id . '?enablejsapi=1&wmode=transparent"';
}
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_youtube_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_youtube_html .= " ></iframe>";
$html_to_insert .= $oembed_youtube_html;
break;
case 'EMBED_OEMBED_VIMEO_VIDEO':
$oembed_vimeo_html ='<iframe ';
if($embed_id!=''){
$oembed_vimeo_html .= ' src="' . '//player.vimeo.com/video/'. $embed_id . '?enablejsapi=1"';
}
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_vimeo_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_vimeo_html .= " ></iframe>";
$html_to_insert .= $oembed_vimeo_html;
break;
case 'EMBED_OEMBED_FLICKR_IMAGE':
$oembed_flickr_html ='<div ';
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_flickr_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_flickr_html .= " >";
if($embed_id!=''){
$oembed_flickr_html .= '<img src="'.$embed_id.'"'.
' style="'.
'max-width:'.'100%'." !important".
'; max-height:'.'100%'." !important".
'; width:'.'auto !important'.
'; height:'. 'auto !important' .
';">';
}
$oembed_flickr_html .="</div>";
$html_to_insert .= $oembed_flickr_html;
break;
case 'EMBED_OEMBED_FLICKR_VIDEO':
# code...not implemented yet
break;
case 'EMBED_OEMBED_INSTAGRAM_VIDEO':
$oembed_instagram_html ='<div ';
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_instagram_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_instagram_html .= " >";
if($embed_id!=''){
$oembed_instagram_html .= '<video style="width:auto !important; height:auto !important; max-width:100% !important; max-height:100% !important; margin:0 !important;" controls>'.
'<source src="'. $embed_id .
'" type="video/mp4"> Your browser does not support the video tag. </video>';
}
$oembed_instagram_html .="</div>";
$html_to_insert .= $oembed_instagram_html;
break;
case 'EMBED_OEMBED_INSTAGRAM_IMAGE':
$oembed_instagram_html ='<div ';
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_instagram_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_instagram_html .= " >";
if($embed_id!=''){
$oembed_instagram_html .= '<img src="//instagram.com/p/'.$embed_id.'/media/?size=l"'.
' style="'.
'max-width:'.'100%'." !important".
'; max-height:'.'100%'." !important".
'; width:'.'auto !important'.
'; height:'. 'auto !important' .
';">';
}
$oembed_instagram_html .="</div>";
$html_to_insert .= $oembed_instagram_html;
break;
case 'EMBED_OEMBED_INSTAGRAM_POST':
$oembed_instagram_html ='<div ';
$id = '';
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_instagram_html .= ' '. $attr . '="'. $value . '"';
if(strtolower($attr) == 'class') {
$class = $value;
}
}
}
}
$oembed_instagram_html .= " >";
if($embed_id!=''){
$oembed_instagram_html .= '<iframe class="inner_instagram_iframe_'.$class.'" src="//instagr.am/p/'.$embed_id.'/embed/?enablejsapi=1"'.
' style="'.
'max-width:'.'100%'." !important".
'; max-height:'.'100%'." !important".
'; width:'.'100%'.
'; height:'. '100%' .
'; margin:0'.
'; display:table-cell; vertical-align:middle;"'.
'frameborder="0" scrolling="no" allowtransparency="false" allowfullscreen'.
'></iframe>';
}
$oembed_instagram_html .="</div>";
$html_to_insert .= $oembed_instagram_html;
break;
case 'EMBED_OEMBED_DAILYMOTION_VIDEO':
$oembed_dailymotion_html ='<iframe ';
if($embed_id!=''){
$oembed_dailymotion_html .= ' src="' . '//www.dailymotion.com/embed/video/'. $embed_id . '?api=postMessage"';
}
foreach ($attrs as $attr => $value) {
if(preg_match('/src/i', $attr)===0){
if($attr != '' && $value != ''){
$oembed_dailymotion_html .= ' '. $attr . '="'. $value . '"';
}
}
}
$oembed_dailymotion_html .= " ></iframe>";
$html_to_insert .= $oembed_dailymotion_html;
break;
default:
# code...
break;
}
echo $html_to_insert;
}
////////////////////////////////////////////////////////////////////////////////////////
// Private Methods //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Listeners //
////////////////////////////////////////////////////////////////////////////////////////
} |