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<?php
add_action('widgets_init', 'ts_instagram_load_widgets');
function ts_instagram_load_widgets()
{
register_widget('TS_Instagram_Widget');
}
if(!class_exists('TS_Instagram_Widget')){
class TS_Instagram_Widget extends WP_Widget {
public $access_token, $base_access_token, $number, $option_key = 'ts_instagram_tokens';
function __construct(){
$widgetOps = array('classname' => 'ts-instagram-widget', 'description' => esc_html__('Display your photos from Instagram', 'themesky'));
parent::__construct('ts_instagram', esc_html__('TS - Instagram', 'themesky'), $widgetOps);
}
function widget( $args, $instance ) {
extract($args);
$title = apply_filters('widget_title', $instance['title']);
$username = $instance['username'];
$access_token = isset($instance['access_token'])?$instance['access_token']:'';
$number = absint($instance['number']);
$column = absint($instance['column']);
$size = $instance['size'];
$target = $instance['target'];
$cache_time = absint($instance['cache_time']);
$is_slider = isset($instance['is_slider'])?$instance['is_slider']:0;
$show_nav = isset($instance['show_nav'])?$instance['show_nav']:1;
$auto_play = isset($instance['auto_play'])?$instance['auto_play']:1;
$margin = isset($instance['margin'])?$instance['margin']:0;
if( !$username && !$access_token ){
return;
}
$this->base_access_token = $access_token;
$this->number = $number;
if( $cache_time == 0 ){
$cache_time = 12;
}
if( $is_slider && $show_nav ){
$before_widget = str_replace('widget-container', 'widget-container has-nav', $before_widget);
}
echo $before_widget;
if( $title ){
echo $before_title . $title . $after_title;
}
unset($instance['title']);
$cache_key = 'instagram_' . md5( implode('', $instance) );
$cache = get_transient($cache_key);
if( $cache !== false ){
echo $cache;
}
else{
$media_array = array();
if( $username ){
$media_array = $this->scrape_instagram( $username, $size );
}
if( $this->base_access_token ){ // always refresh if added
$this->maybe_clean_token();
$refresh_result = $this->maybe_refresh_token();
if( is_wp_error($refresh_result) ){
echo esc_html( $refresh_result->get_error_message() );
$this->base_access_token = ''; // dont get data
}
}
if ( is_wp_error( $media_array ) || empty( $media_array ) ) {
if( $this->base_access_token ){
$media_array = $this->get_data_with_token();
if( is_wp_error( $media_array ) ){
echo esc_html( $media_array->get_error_message() );
}
}
else if( is_wp_error( $media_array ) ){ // maybe use username
echo esc_html( $media_array->get_error_message() );
}
}
if( !is_wp_error( $media_array ) && !empty( $media_array ) ){
ob_start();
$classes = array();
$classes[] = 'ts-instagram-wrapper items';
$classes[] = 'columns-' . $column;
$data_attr = array();
if( $is_slider ){
$data_attr[] = 'data-nav="'.esc_attr($show_nav).'"';
$data_attr[] = 'data-autoplay="'.esc_attr($auto_play).'"';
$data_attr[] = 'data-margin="'.absint($margin).'"';
$data_attr[] = 'data-columns="'.absint($column).'"';
$classes[] = 'ts-slider loading';
}
?>
<div class="<?php echo esc_attr(implode(' ', $classes)); ?>" <?php echo implode(' ', $data_attr); ?>>
<?php foreach( $media_array as $index => $item ){
$item_class = '';
if( $index % $column == 0 ){
$item_class = 'first';
}
elseif( $index % $column == ($column - 1) ){
$item_class = 'last';
}
?>
<div class="item <?php echo esc_attr($item_class); ?>">
<a href="<?php echo esc_url( $item['permalink'] ) ?>" target="<?php echo esc_attr( $target ) ?>">
<img src="<?php echo esc_url( $item['media_url'] ) ?>" alt="<?php echo esc_attr( $item['caption'] ) ?>" title="<?php echo esc_attr( $item['caption'] ) ?>" />
</a>
</div>
<?php } ?>
</div>
<?php
$output = ob_get_clean();
echo $output;
set_transient($cache_key, $output, $cache_time * HOUR_IN_SECONDS);
}
}
echo $after_widget;
}
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags($new_instance['title']);
$instance['username'] = $new_instance['username'];
$instance['access_token'] = $new_instance['access_token'];
$instance['number'] = $new_instance['number'];
$instance['column'] = $new_instance['column'];
$instance['size'] = $new_instance['size'];
$instance['target'] = $new_instance['target'];
$instance['cache_time'] = $new_instance['cache_time'];
return $instance;
}
function form( $instance ) {
$array_default = array(
'title' => 'Instagram'
,'username' => ''
,'access_token' => ''
,'number' => 9
,'column' => 3
,'size' => 'large'
,'target' => '_self'
,'cache_time' => 12
);
$instance = wp_parse_args( (array) $instance, $array_default );
?>
<p>
<label for="<?php echo $this->get_field_id('title'); ?>"><?php esc_html_e('Enter your title', 'themesky'); ?> </label>
<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($instance['title']); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id('username'); ?>"><?php esc_html_e('Username', 'themesky'); ?> </label>
<input class="widefat" id="<?php echo $this->get_field_id('username'); ?>" name="<?php echo $this->get_field_name('username'); ?>" type="text" value="<?php echo esc_attr($instance['username']); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id('access_token'); ?>"><?php esc_html_e('Access Token', 'themesky'); ?> </label>
<input class="widefat" id="<?php echo $this->get_field_id('access_token'); ?>" name="<?php echo $this->get_field_name('access_token'); ?>" type="text" value="<?php echo esc_attr($instance['access_token']); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id('number'); ?>"><?php esc_html_e('Number of photos', 'themesky'); ?> </label>
<input class="widefat" type="number" id="<?php echo $this->get_field_id('number'); ?>" name="<?php echo $this->get_field_name('number'); ?>" value="<?php echo esc_attr($instance['number']); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id('column'); ?>"><?php esc_html_e('Column', 'themesky'); ?> </label>
<select class="widefat" id="<?php echo $this->get_field_id('column'); ?>" name="<?php echo $this->get_field_name('column'); ?>" >
<?php for( $i = 2; $i <= 6; $i++ ): if( $i == 5 ){ continue; } ?>
<option value="<?php echo $i; ?>" <?php selected($instance['column'], $i); ?> ><?php echo $i; ?></option>
<?php endfor; ?>
</select>
</p>
<p>
<label for="<?php echo $this->get_field_id('size'); ?>"><?php esc_html_e('Size', 'themesky'); ?> </label>
<select class="widefat" id="<?php echo $this->get_field_id('size'); ?>" name="<?php echo $this->get_field_name('size'); ?>" >
<option value="thumbnail" <?php selected($instance['size'], 'thumbnail'); ?> ><?php esc_html_e('Thumbnail', 'themesky') ?></option>
<option value="small" <?php selected($instance['size'], 'small'); ?> ><?php esc_html_e('Small', 'themesky') ?></option>
<option value="large" <?php selected($instance['size'], 'large'); ?> ><?php esc_html_e('Large', 'themesky') ?></option>
<option value="original" <?php selected($instance['size'], 'original'); ?> ><?php esc_html_e('Original', 'themesky') ?></option>
</select>
</p>
<p>
<label for="<?php echo $this->get_field_id('target'); ?>"><?php esc_html_e('Target', 'themesky'); ?> </label>
<select class="widefat" id="<?php echo $this->get_field_id('target'); ?>" name="<?php echo $this->get_field_name('target'); ?>" >
<option value="_self" <?php selected($instance['target'], '_self'); ?> ><?php esc_html_e('Self', 'themesky') ?></option>
<option value="_blank" <?php selected($instance['target'], '_blank'); ?> ><?php esc_html_e('New window tab', 'themesky') ?></option>
</select>
</p>
<p>
<label for="<?php echo $this->get_field_id('cache_time'); ?>"><?php esc_html_e('Cache time (hours)', 'themesky'); ?> </label>
<input class="widefat" type="number" min="1" id="<?php echo $this->get_field_id('cache_time'); ?>" name="<?php echo $this->get_field_name('cache_time'); ?>" value="<?php echo esc_attr($instance['cache_time']); ?>" />
</p>
<?php
}
function connect( $url ){
$args = array(
'timeout' => 60
,'sslverify' => false
);
$response = wp_remote_get( $url, $args );
if( ! is_wp_error( $response ) ){
$response = json_decode( str_replace( '%22', '”', $response['body'] ), true );
}
if( isset($response['data']) ){
return $response['data'];
}
else{
return $response;
}
}
function maybe_clean_token(){
$split_token = explode( ' ', trim( $this->base_access_token ) );
$this->base_access_token = preg_replace("/[^A-Za-z0-9 ]/", '', $split_token[0] );
if( substr_count ( $this->base_access_token , '.' ) < 3 ){
$this->access_token = $this->base_access_token;
return;
}
$parts = explode( '.', trim( $this->base_access_token ) );
$last_part = $parts[2] . $parts[3];
$this->access_token = $parts[0] . '.' . base64_decode( $parts[1] ) . '.' . base64_decode( $last_part );
}
// Token need to be refreshed every 60 days
function maybe_refresh_token(){
$need_refresh = true;
$value = get_option($this->option_key, array());
if( isset($value[$this->base_access_token]['timestamp']) ){
$current_token = $value[$this->base_access_token]['refreshed_token'];
$timestamp = $value[$this->base_access_token]['timestamp'];
if( $timestamp > time() ){
$need_refresh = false;
}
$this->access_token = $current_token;
}
else if( !is_array($value) ){
$value = array();
}
if( $need_refresh ){
$url = 'https://graph.instagram.com/refresh_access_token?grant_type=ig_refresh_token&access_token=' . $this->access_token;
$data = $this->connect( $url );
// show error here if failed
if( isset($data['access_token']) ){
if( !isset($value[$this->base_access_token]) ){
$value[$this->base_access_token] = array();
}
$value[$this->base_access_token]['refreshed_token'] = $data['access_token'];
$value[$this->base_access_token]['timestamp'] = time() + MONTH_IN_SECONDS; // refresh after a month
// delete unuse token before saving
foreach( $value as $t => $v ){
if( $t != $this->base_access_token && isset($v['timestamp']) && ( $v['timestamp'] + YEAR_IN_SECONDS ) < time() ){
unset($value[$t]);
}
}
update_option($this->option_key, $value); // use refreshed token for future
$this->access_token = $data['access_token'];
return true;
}
else{
return new WP_Error( 'cant_refresh_token', esc_html__( 'Can not refresh Instagram token. It may be incorrect.', 'themesky' ) );
}
}
return true;
}
function get_user_id(){
$value = get_option($this->option_key, array());
if( isset($value[$this->base_access_token]['user_id']) ){
return $value[$this->base_access_token]['user_id'];
}
$url = 'https://graph.instagram.com/me?fields=id,username&access_token=' . $this->access_token;
$response = $this->connect( $url );
if( isset($response['id']) ){
if( !isset($value[$this->base_access_token]) ){
$value[$this->base_access_token] = array();
}
$value[$this->base_access_token]['user_id'] = $response['id'];
update_option($this->option_key, $value);
return $response['id'];
}
else{
return new WP_Error( 'invalid_response', esc_html__( 'Unable to communicate with Instagram.', 'themesky' ) );
}
}
function get_data_with_token(){
$user_id = $this->get_user_id();
if( is_wp_error($user_id) ){
return $user_id;
}
$number = $this->number * 2; // prevent have video/album
$url = 'https://graph.instagram.com/'.$user_id.'/media?fields=media_url,caption,id,media_type,permalink&limit='.$number.'&access_token=' . $this->access_token;
$response = $this->connect( $url );
if( !is_array($response) ){
return new WP_Error( 'invalid_response', esc_html__( 'Instagram has returned invalid data.', 'themesky' ) );
}
if( isset($response['error']['message']) ){
return new WP_Error( 'error_response', $response['error']['message'] );
}
$items = array();
foreach( $response as $node ){
if( !isset($node['media_type']) || $node['media_type'] != 'IMAGE' ){
continue;
}
$item = array();
$item['permalink'] = $node['permalink'];
$item['media_url'] = $node['media_url'];
$item['caption'] = isset($node['caption'])?$node['caption']:__('Instagram Image', 'themesky');
$items[] = $item;
}
return array_slice( $items, 0, $this->number );
}
function scrape_instagram( $username, $size ) {
$username = trim( strtolower( $username ) );
switch ( substr( $username, 0, 1 ) ) {
case '#':
$url = 'https://instagram.com/explore/tags/' . str_replace( '#', '', $username );
break;
default:
$url = 'https://instagram.com/' . str_replace( '@', '', $username );
break;
}
$remote = wp_remote_get( $url );
if ( is_wp_error( $remote ) ) {
return new WP_Error( 'site_down', esc_html__( 'Unable to communicate with Instagram.', 'themesky' ) );
}
if ( 200 !== wp_remote_retrieve_response_code( $remote ) ) {
return new WP_Error( 'invalid_response', esc_html__( 'Instagram did not return a 200.', 'themesky' ) );
}
$shards = explode( 'window._sharedData = ', $remote['body'] );
$insta_json = explode( ';</script>', $shards[1] );
$insta_array = json_decode( $insta_json[0], true );
if ( ! $insta_array ) {
return new WP_Error( 'bad_json', esc_html__( 'Instagram has returned invalid data.', 'themesky' ) );
}
if ( isset( $insta_array['entry_data']['ProfilePage'][0]['graphql']['user']['edge_owner_to_timeline_media']['edges'] ) ) {
$images = $insta_array['entry_data']['ProfilePage'][0]['graphql']['user']['edge_owner_to_timeline_media']['edges'];
} elseif ( isset( $insta_array['entry_data']['TagPage'][0]['graphql']['hashtag']['edge_hashtag_to_media']['edges'] ) ) {
$images = $insta_array['entry_data']['TagPage'][0]['graphql']['hashtag']['edge_hashtag_to_media']['edges'];
} else {
return new WP_Error( 'bad_json_2', esc_html__( 'Instagram has returned invalid data.', 'themesky' ) );
}
if ( ! is_array( $images ) ) {
return new WP_Error( 'bad_array', esc_html__( 'Instagram has returned invalid data.', 'themesky' ) );
}
$instagram = array();
foreach ( $images as $image ) {
if ( true === $image['node']['is_video'] ) {
continue; // dont show video
} else {
$type = 'image';
}
$caption = esc_html__( 'Instagram Image', 'themesky' );
if ( ! empty( $image['node']['edge_media_to_caption']['edges'][0]['node']['text'] ) ) {
$caption = wp_kses( $image['node']['edge_media_to_caption']['edges'][0]['node']['text'], array() );
}
$item = array(
'caption' => $caption
,'permalink' => trailingslashit( '//instagram.com/p/' . $image['node']['shortcode'] )
);
switch( $size ){
case 'thumbnail':
$item['media_url'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][0]['src'] );
break;
case 'small':
$item['media_url'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][2]['src'] );
break;
case 'large':
$item['media_url'] = preg_replace( '/^https?\:/i', '', $image['node']['thumbnail_resources'][4]['src'] );
break;
default:
$item['media_url'] = preg_replace( '/^https?\:/i', '', $image['node']['display_url'] );
}
$instagram[] = $item;
}
if ( ! empty( $instagram ) ) {
return array_slice( $instagram, 0, $this->number );
} else {
return new WP_Error( 'no_images', esc_html__( 'Instagram did not return any images.', 'themesky' ) );
}
}
}
}