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<?php
/**
* Class for handling embedded media in gallery
*
*/
class WDWLibraryEmbed {
////////////////////////////////////////////////////////////////////////////////////////
// Events //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Constants //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Variables //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Constructor & Destructor //
////////////////////////////////////////////////////////////////////////////////////////
public function __construct() {
}
////////////////////////////////////////////////////////////////////////////////////////
// Public Methods //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Getters & Setters //
////////////////////////////////////////////////////////////////////////////////////////
/**
* 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($url,$host='') {
$url = urldecode($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();
$provider = $oembed->get_provider( $url );
foreach ($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*/
$provider=$host;
$result = WDWLibraryEmbed::embed_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 = $host;
switch ($embed_type) {
case '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,
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
case '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,
'date_modified' => date('d F Y, H:i'),
'resolution' => $result->width." x ".$result->height." px",
'redirect_url' => '');
return json_encode($embedData);
break;
default:
return json_encode(array("error", "unknown URL host"));
break;
}
}
}/*end of oembed cases*/
else {
/*check for direct image url*/
/*check if something else*/
/*not implemented yet*/
return json_encode(array("error", "unknown URL"));
}
return json_encode(array("error", "unknown URL"));
}
public static function curl_get($url) {
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_TIMEOUT, 30);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
$return = curl_exec($curl);
curl_close($curl);
return $return;
}
public static function embed_fetch($provider,$url)
{
switch ($provider)
{
case 'YOUTUBE':
$embed='http://www.'.strtolower($provider).'.com/oembed?url='.$url.'&format=json';
break;
case 'VIMEO':
$embed='http://'.strtolower($provider).'.com/api/oembed.json?url='.$url;
break;
}
//$contents=file_get_contents($embed);
return json_decode(WDWLibraryEmbed::curl_get($embed));
}
/**
* 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 . '="'. $value . '"';
if($attr == 'class' || $attr =='CLASS' || $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 $html_to_insert;
}
/**
*
* @return json_encode(array("error","error message")) on failure
* @return json_encode(array of data of instagram user recent posts) on success
*/
public static function add_instagram_gallery($instagram_user, $client_id, $whole_post, $autogallery_image_number) {
$instagram_user = sanitize_text_field(urldecode($instagram_user));
$instagram_user_response = wp_remote_get("https://api.instagram.com/v1/users/search?q=".$instagram_user."&client_id=".$client_id."&count=1");
if ( is_wp_error( $instagram_user_response ) ) {
return json_encode(array("error", "cannot get Instagram user parameters"));
}
$user_json = wp_remote_retrieve_body($instagram_user_response);
$response_code = json_decode($user_json)->meta->code;
/*
instagram API returns
*wrong username
{"meta":{"code":200},"data":[]}
*wrong client_id
{"meta":{"error_type":"OAuthParameterException","code":400,"error_message":"The client_id provided is invalid and does not match a valid application."}}
*/
if($response_code != 200){
return json_encode(array("error", json_decode($user_json)->meta->error_message));
}
if(!property_exists(json_decode($user_json), 'data')){
return json_encode(array("error", "cannot get Instagram user parameters"));
}
if(empty(json_decode($user_json)->data)){
return json_encode(array("error", "wrong Instagram username"));
}
$user_data = json_decode($user_json)->data[0];
$user_id = $user_data->id;
$instagram_posts_response = wp_remote_get("https://api.instagram.com/v1/users/".$user_id."/media/recent/?client_id=".$client_id."&count=".$autogallery_image_number);
if ( is_wp_error( $instagram_posts_response ) ) {
return json_encode(array("error", "cannot get Instagram user posts"));
}
$posts_json = wp_remote_retrieve_body($instagram_posts_response);
$response_code = json_decode($posts_json)->meta->code;
/*
instagram API returns
*private user
'{"meta":{"error_type":"APINotAllowedError","code":400,"error_message":"you cannot view this resource"}}'
*/
if($response_code != 200){
return json_encode(array("error", json_decode($posts_json)->meta->error_message));
}
if(!property_exists(json_decode($posts_json), 'data')){
return json_encode(array("error", "cannot get Instagram user posts data"));
}
/*
if instagram user has no posts
*/
if(empty(json_decode($posts_json)->data)){
return json_encode(array("error", "Instagram user has no posts"));
}
$posts_array = json_decode($posts_json)->data;
$instagram_album_data = array();
if($whole_post==1){
$post_flag ="post";
}
else{
$post_flag ='';
}
foreach ($posts_array as $post_data) {
$url = $post_data ->link . $post_flag;
$post_to_embed = json_decode(self::add_embed($url), true);
/* if add_embed function did not indexed array because of error */
if(!isset($post_to_embed[0]) ){
array_push($instagram_album_data, $post_to_embed);
}
}
return json_encode($instagram_album_data);
}
/**
*
* @return array of galleries,
* @return array(false, "error message");
*
*/
public static function check_instagram_galleries(){
global $wpdb;
$instagram_galleries = $wpdb->get_results( "SELECT id, gallery_type, gallery_source, update_flag, autogallery_image_number FROM " . $wpdb->prefix . "bwg_gallery WHERE gallery_type='instagram' OR gallery_type='instagram_post'", OBJECT );
$galleries_to_update = array();
if($instagram_galleries){
foreach ($instagram_galleries as $gallery) {
if($gallery->update_flag == 'add' || $gallery->update_flag == 'replace'){
array_push($galleries_to_update, $gallery);
}
}
if(!empty($galleries_to_update)){
return $galleries_to_update;
}
else{
return array(false, "No instagram gallery has to be updated");
}
}
else{
return array(false,"There is no instagram gallery");
}
}
/**
*
* @return array(true, "refresh time");
* @return array(false, "error message");
*
*/
public static function refresh_instagram_gallery($gallery){
global $wpdb;
$id = $gallery->id;
$type = $gallery->gallery_type;
$update_flag = $gallery->update_flag;
$autogallery_image_number = $gallery->autogallery_image_number;
if($type=='instagram'){
$whole_post = 0;
}
if($type=='instagram_post'){
$whole_post = 1;
}
$source =$gallery->gallery_source;
if(!$id || !$type || !$source){
return array(false, "Gallery id, type or source are empty");
}
$get_client_id = $wpdb->get_results( "SELECT instagram_client_id FROM " . $wpdb->prefix . "bwg_option", OBJECT );
if(!$get_client_id){
return array(false, "Cannot get CLIENT_ID from the database");
}
$client_id = $get_client_id[0]->instagram_client_id;
$images = $wpdb->get_results("SELECT * FROM " . $wpdb->prefix . "bwg_image WHERE gallery_id='" . $id . "' ", OBJECT);
$images_count = sizeof($images);
$new_images_data = self::add_instagram_gallery($source, $client_id, $whole_post, $autogallery_image_number);
if(!$new_images_data){
return array(false, "Cannot get instagram data");
}
$images_new = json_decode($new_images_data);
if(empty($images_new)){
return array(false, "Cannot get instagram data");
}
if($images_new[0] == "error"){
return array(false, "Cannot get instagram data");
}
$images_count_new = sizeof($images_new);
$images_update = array(); /*ids and orders of images existing in both arrays*/
$images_insert = array(); /*data of new images*/
$images_dated = array(); /*ids and orders of images not existing in the array of new images*/
$new_order = 0; /*how many images should be added*/
if($images_count!=0){
$author = $images[0]->author; /* author is the same for the images in the gallery */
}
else{
$author = 1;
}
/*loops to compare new and existing images*/
foreach ($images_new as $image_new) {
$to_add = true;
if($images_count != 0){
foreach($images as $image){
if($image_new->filename == $image->filename){
/*if that image exist, do not update*/
$to_add = false;
}
}
}
if($to_add){
/*if image does not exist, insert*/
$new_order++;
$new_image_data = array(
'gallery_id' => $id,
'slug' => sanitize_title($image_new->name),
'filename' => $image_new->filename,
'image_url' => $image_new->url,
'thumb_url' => $image_new->thumb_url,
'description' => $image_new->description,
'alt' => $image_new->name,
'date' => $image_new->date_modified,
'size' => $image_new->size,
'filetype' => $image_new->filetype,
'resolution' => $image_new->resolution,
'author' => $author,
'order' => $new_order,
'published' => 1,
'comment_count' => 0,
'avg_rating' => 0,
'rate_count' => 0,
'hit_count' => 0,
'redirect_url' => $image_new->redirect_url,
);
array_push($images_insert, $new_image_data);
}
}
if($images_count != 0){
foreach ($images as $image) {
$is_dated = true;
foreach($images_new as $image_new){
if($image_new->filename == $image->filename){
/* if that image exist, do not update */
/* shift order by a number of new images */
$image_update = array(
'id' => $image->id ,
'order'=> intval($image->order) + $new_order,
"slug" => sanitize_title($image_new->name),
"description" => $image_new->description,
"alt" => $image_new->name,
"date" => $image_new->date_modified);
array_push($images_update, $image_update);
$is_dated = false;
}
}
if($is_dated){
$image_dated = array(
'id' => $image->id ,
'order'=> intval($image->order) + $new_order,
);
array_push($images_dated, $image_dated);
}
}
}
/*endof comparing loops*/
$to_unpublish = true;
if($update_flag == 'add'){
$to_unpublish = false;
}
if($update_flag == 'replace'){
$to_unpublish = true;
}
/*update old images*/
if($images_count != 0){
if($to_unpublish){
foreach ($images_dated as $image) {
$q = 'UPDATE ' . $wpdb->prefix . 'bwg_image SET published=0, `order` ='.$image['order'].' WHERE `id`='.$image['id'];
$wpdb->query($q);
}
}
else{
foreach ($images_dated as $image) {
$q = 'UPDATE ' . $wpdb->prefix . 'bwg_image SET `order` ='.$image['order'].' WHERE `id`='.$image['id'];
$wpdb->query($q);
}
}
foreach ($images_update as $image) {
$save = $wpdb->update($wpdb->prefix . 'bwg_image', array(
'order' => $image['order'],
'slug' => $image['slug'],
'description' => $image['description'],
'alt' => $image['alt'],
'date' => $image['date']
), array('id' => $image['id']));
}
}
/*add new images*/
foreach($images_insert as $image){
$save = $wpdb->insert($wpdb->prefix . 'bwg_image', array(
'gallery_id' => $image['gallery_id'],
'slug' => $image['slug'],
'filename' => $image['filename'],
'image_url' => $image['image_url'],
'thumb_url' => $image['thumb_url'],
'description' => $image['description'],
'alt' => $image['alt'],
'date' => $image['date'],
'size' => $image['size'],
'filetype' => $image['filetype'],
'resolution' => $image['resolution'],
'author' => $image['author'],
'order' => $image['order'],
'published' => $image['published'],
'comment_count' => $image['comment_count'],
'avg_rating' => $image['avg_rating'],
'rate_count' => $image['rate_count'],
'hit_count' => $image['hit_count'],
'redirect_url' => $image['redirect_url'],
), array(
'%d',
'%s',
'%s',
'%s',
'%s',
'%s',
'%s',
'%s',
'%s',
'%s',
'%s',
'%d',
'%d',
'%d',
'%d',
'%d',
'%d',
'%d',
'%s',
));
}
$time = date('d F Y, H:i');
/*return time of last update*/
return array(true, $time);
}
public static function get_autoupdate_interval(){
global $wpdb;
$row = $wpdb->get_row($wpdb->prepare('SELECT * FROM ' . $wpdb->prefix . 'bwg_option WHERE id="%d"', 1));
if(!isset($row)){
return 30;
}
if(!isset($row->autoupdate_interval)){
return 30;
}
$autoupdate_interval = $row->autoupdate_interval;
return $autoupdate_interval;
}
////////////////////////////////////////////////////////////////////////////////////////
// Private Methods //
////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////
// Listeners //
////////////////////////////////////////////////////////////////////////////////////////
}