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The Grid Facebook Class
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| <?php | |
| /** | |
| * @package The_Grid | |
| * @author Themeone <themeone.master@gmail.com> | |
| * @copyright 2015 Themeone | |
| */ | |
| // Exit if accessed directly | |
| if (!defined('ABSPATH')) { | |
| exit; | |
| } | |
| class The_Grid_Facebook { | |
| /** | |
| * Facebook App ID | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var integer | |
| */ | |
| private $app_ID; | |
| /** | |
| * Facebook App Secret | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var integer | |
| */ | |
| private $app_secret; | |
| /** | |
| * Facebook user | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var string | |
| */ | |
| private $facebook_user; | |
| /** | |
| * Facebook user ID | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var array | |
| */ | |
| private $facebook_user_id = array(); | |
| /** | |
| * Facebook page url/username | |
| * | |
| * @since 2.0.0 | |
| * @access public | |
| * | |
| * @var string | |
| */ | |
| private $facebook_page; | |
| /** | |
| * Facebook album ID | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var integer | |
| */ | |
| private $facebook_album_id; | |
| /** | |
| * Facebook source type | |
| * | |
| * @since 2.0.0 | |
| * @access public | |
| * | |
| * @var string | |
| */ | |
| private $facebook_source; | |
| /** | |
| * Facebook transient | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var string | |
| */ | |
| private $transient_sec; | |
| /** | |
| * Grid data | |
| * | |
| * @since 2.0.0 | |
| * @access private | |
| * | |
| * @var array | |
| */ | |
| private $grid_data; | |
| /** | |
| * Initialize the class and set its properties. | |
| * @since 2.0.0 | |
| */ | |
| public function __construct($grid_data = '') { | |
| $this->grid_data = $grid_data; | |
| $this->get_app_key(); | |
| $this->get_settings(); | |
| $this->get_transient_expiration(); | |
| } | |
| /** | |
| * Return array of grid data | |
| * @since: 2.0.0 | |
| */ | |
| public function get_grid_data(){ | |
| return $this->grid_data; | |
| } | |
| /** | |
| * Get Facebook APP Key | |
| * @since: 2.0.0 | |
| */ | |
| public function get_app_key(){ | |
| $this->app_ID = trim(get_option('the_grid_facebook_app_ID', '')); | |
| $this->app_secret = trim(get_option('the_grid_facebook_app_secret', '')); | |
| if (empty($this->app_ID) || empty($this->app_secret)) { | |
| $error_msg = __( 'You didn\'t authorize The Grid to', 'tg-text-domain' ); | |
| $error_msg .= ' <a style="text-decoration: underline" href="'.admin_url('admin.php?page=the_grid_global_settings').'">'; | |
| $error_msg .= __( 'connect to Facebook.', 'tg-text-domain' ); | |
| $error_msg .= '</a>'; | |
| throw new Exception($error_msg); | |
| } | |
| } | |
| /** | |
| * Get Facebook settings | |
| * @since: 2.0.0 | |
| */ | |
| public function get_settings(){ | |
| $this->facebook_source = $this->grid_data['facebook_source']; | |
| $this->facebook_page = $this->grid_data['facebook_page']; | |
| $this->facebook_album_id = $this->grid_data['facebook_album_id']; | |
| $this->facebook_group_id = $this->grid_data['facebook_group_id']; | |
| } | |
| /** | |
| * Get Facebook transient expiration | |
| * @since: 2.0.0 | |
| */ | |
| public function get_transient_expiration(){ | |
| $this->transient_sec = apply_filters('tg_transient_facebook', 3600); | |
| } | |
| /** | |
| * Return array of data | |
| * @since 2.0.0 | |
| */ | |
| public function get_grid_items() { | |
| switch ($this->facebook_source) { | |
| case 'page_timeline': | |
| $this->get_page_timeline(); | |
| break; | |
| case 'group': | |
| $this->get_public_group(); | |
| break; | |
| case 'album': | |
| $this->get_public_album(); | |
| break; | |
| default: | |
| $error_msg = __( 'No Facebook source was set in The Grid settings.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| return $this->media; | |
| } | |
| /** | |
| * Get user from Facebook url | |
| * @since: 2.0.0 | |
| */ | |
| public function get_facebook_user(){ | |
| if (empty($this->facebook_page)) { | |
| $error_msg = __( 'No Facebook page was found.', 'tg-text-domain' ); | |
| $error_msg .= '<br>'; | |
| $error_msg .= __( 'Please, make sure you have entered a Facebook page in the grid settings.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| $this->facebook_user = str_replace(array('https', 'http', '://', 'www.', 'facebook', '.com', '/'), '', $this->facebook_page); | |
| $this->facebook_user = explode('?', $this->facebook_user); | |
| $this->facebook_user = isset($this->facebook_user[0]) ? trim($this->facebook_user[0]) : null; | |
| $this->facebook_user = isset($this->facebook_user) ? explode('-', $this->facebook_user) : null; | |
| $this->facebook_user = is_array($this->facebook_user) ? trim(end($this->facebook_user)) : null; | |
| if (empty($this->facebook_user)) { | |
| $error_msg = __( 'No Facebook user was found with the current Facebook page url', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| } | |
| /** | |
| * Facebook get page timeline | |
| * @since 2.0.0 | |
| */ | |
| public function get_page_timeline() { | |
| $this->get_facebook_user(); | |
| if (empty($this->facebook_user)) { | |
| $error_msg = __( 'No Facebook page was set in The Grid settings.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| $this->get_response('https://graph.facebook.com/v9.0/'.$this->facebook_user.'/feed?'.$this->request_query()); | |
| } | |
| /** | |
| * Facebook get group from ID | |
| * @since 2.0.0 | |
| */ | |
| public function get_public_group(){ | |
| if (empty($this->facebook_group_id)) { | |
| $error_msg = __( 'No Facebook group ID was set in The Grid settings.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| $this->get_response('https://graph.facebook.com/v2.12/'.$this->facebook_group_id.'/feed?'.$this->request_query()); | |
| } | |
| /** | |
| * Facebook get album from ID | |
| * @since 2.0.0 | |
| */ | |
| public function get_public_album(){ | |
| if (empty($this->facebook_album_id)) { | |
| $error_msg = __( 'No Facebook album ID was set in The Grid settings.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| $this->get_response('https://graph.facebook.com/v2.12/'.$this->facebook_album_id.'/photos?'.$this->request_query()); | |
| } | |
| /** | |
| * Build Facebook query url | |
| * @since: 2.0.0 | |
| */ | |
| public function request_query(){ | |
| $access_token = $this->get_oauth(); | |
| $oauth = $access_token ? 'access_token=' . $access_token : 'access_token=null'; | |
| return $oauth . $this->request_fields() . '&offset=' . $this->grid_data['offset'] . '&limit=' . $this->grid_data['item_number']; | |
| } | |
| /** | |
| * Build Facebook fields | |
| * @since: 2.0.0 | |
| */ | |
| public function request_fields(){ | |
| $fields = '&fields='; | |
| $fields .= 'likes.summary(true),comments.summary(true),shares,'; | |
| $fields .= 'id,from,object_id,source,type,status_type,link,name,message,story,created_time,picture,full_picture,attachments{media,subattachments}'; | |
| return $fields; | |
| } | |
| /** | |
| * Get url response (transient) | |
| * @since 2.0.0 | |
| */ | |
| public function get_oauth() { | |
| $oauth = add_query_arg( array( | |
| 'type' => 'client_cred', | |
| 'client_id' => $this->app_ID, | |
| 'client_secret' => $this->app_secret | |
| ), 'https://graph.facebook.com/oauth/access_token' ); | |
| $transient_name = 'tg_grid_' . md5( $oauth ); | |
| if ( $this->transient_sec > 0 && ( $transient = get_transient( $transient_name ) ) !== false ) { | |
| return $transient; | |
| } | |
| $oauth = wp_remote_fopen( $oauth ); | |
| $oauth = json_decode( $oauth ); | |
| if ( isset( $oauth->error->message ) ) { | |
| $error_msg = __( 'Sorry, an error occurs from your Facebook App:', 'tg-text-domain' ); | |
| $error_msg .= ' ' . $oauth->error->message; | |
| throw new Exception( $error_msg ); | |
| } | |
| if ( isset( $oauth->access_token ) ) { | |
| set_transient( $transient_name, $oauth->access_token, $this->transient_sec ); | |
| return $oauth->access_token; | |
| } | |
| } | |
| /** | |
| * Get url response (transient) | |
| * @since 2.0.0 | |
| */ | |
| public function get_response($url) { | |
| global $tg_is_ajax; | |
| $transient_name = 'tg_grid_' . md5($url); | |
| if ($this->transient_sec > 0 && ($transient = get_transient($transient_name)) !== false) { | |
| $this->media = json_decode($transient, true); | |
| } else { | |
| $response = wp_remote_fopen($url); | |
| $json = json_decode($response); | |
| if (isset($json->error->message)) { | |
| $error_msg = __( 'Sorry, an error occurs from Facebook API:', 'tg-text-domain' ); | |
| $error_msg .= ' '.$json->error->message; | |
| throw new Exception($error_msg); | |
| } | |
| if (isset($json->data) && !empty($json->data)){ | |
| $this->media = $this->build_media_array($json); | |
| set_transient($transient_name, json_encode($this->media), $this->transient_sec); | |
| } else if (!$tg_is_ajax) { | |
| $error_msg = __( 'No content was found from Facebook.', 'tg-text-domain' ); | |
| throw new Exception($error_msg); | |
| } | |
| } | |
| } | |
| /** | |
| * Get title from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_title($data) { | |
| if (!isset($data->type) || $this->facebook_source == 'album' || (isset($data->status_type) && $data->status_type == 'added_photos')){ | |
| return; | |
| } else if (isset($data->name)){ | |
| return $data->name; | |
| } | |
| return; | |
| } | |
| /** | |
| * Get excerpt from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_excerpt($data) { | |
| if (!isset($data->type) || $this->facebook_source == 'album'){ | |
| return isset($data->name) ? (string) $data->name : null; | |
| } else if (isset($data->message)) { | |
| $attributes = ' target="_blank" class="tg-item-social-link"'; | |
| $message = preg_replace('/\b(?:(?:https?|ftp|file):\/\/|www\.|ftp\.)[-A-Z0-9+&@#\/%=~_|$?!:,.]*[A-Z0-9+&@#\/%=~_|$]/i', '<a href="$0"'.$attributes.'>$0</a>', $data->message); | |
| //$message = preg_replace('/(https?:\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?)/i', '<a href="$1"'.$attributes.'>$1</a>', $data->message); | |
| $message = preg_replace('/#([\\d\\w]+)/', '<a href="https://www.facebook.com/hashtag/$1?source=feed_text&story_id='.$data->id.'"'.$attributes.'>$0</a>', $message); | |
| return $message; | |
| } else if (isset($data->story)) { | |
| return (string) $data->story; | |
| } | |
| return; | |
| } | |
| /** | |
| * Get user picture from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_user_picture($data) { | |
| if ( ! isset( $data->from->id ) ) { | |
| return; | |
| } | |
| if (isset($data->from->id) && !empty($data->from->id) && !array_key_exists($data->from->id, $this->facebook_user_id)){ | |
| $response = wp_remote_fopen('https://graph.facebook.com/'.$data->from->id.'/picture?type=square&width=80&height=80&redirect=false'); | |
| $json = json_decode($response); | |
| if (isset($json->data->url) && !empty($json->data->url)) { | |
| $this->facebook_user_id[$data->from->id] = $json->data->url; | |
| return $json->data->url; | |
| } | |
| } else if (array_key_exists($data->from->id, $this->facebook_user_id)) { | |
| return $this->facebook_user_id[$data->from->id]; | |
| } | |
| return; | |
| } | |
| /** | |
| * Get image from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_image($data) { | |
| $attachments = isset($data->attachments->data[0]) ? $data->attachments->data[0] : null; | |
| if (isset($attachments->media->image->src)) { | |
| return array( | |
| 'alt' => null, | |
| 'title' => null, | |
| 'url' => isset($attachments->media->image->src) ? $attachments->media->image->src : null, | |
| 'lb_url' => isset($data->full_picture) && $data->full_picture ? $data->full_picture : $attachments->media->image->src, | |
| 'width' => isset($attachments->media->image->width) ? $attachments->media->image->width : 500, | |
| 'height' => isset($attachments->media->image->height) ? $attachments->media->image->height : 500 | |
| ); | |
| } else if (isset($data->source)) { | |
| return array( | |
| 'alt' => null, | |
| 'title' => null, | |
| 'url' => isset($data->source) ? $data->source : null, | |
| 'lb_url' => isset($data->source) ? $data->source : null, | |
| 'width' => isset($data->width) ? $data->width : 500, | |
| 'height' => isset($data->height) ? $data->height : 500, | |
| ); | |
| } | |
| return; | |
| } | |
| /** | |
| * Get gallery from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_gallery($data) { | |
| $attachments = isset($data->attachments->data[0]) ? $data->attachments->data[0] : null; | |
| if ($attachments && isset($attachments->subattachments)) { | |
| $gallery = array(); | |
| if (isset($attachments->media->image->src)) { | |
| $gallery[] = array( | |
| 'alt' => null, | |
| 'title' => null, | |
| 'url' => isset($attachments->media->image->src) ? $attachments->media->image->src : null, | |
| 'lb_url' => isset($attachments->media->image->src) ? $attachments->media->image->src : null, | |
| 'width' => isset($attachments->media->image->width) ? $attachments->media->image->width : 500, | |
| 'height' => isset($attachments->media->image->height) ? $attachments->media->image->height : 500 | |
| ); | |
| } | |
| foreach ($attachments->subattachments->data as $attachment) { | |
| $gallery[] = array( | |
| 'alt' => null, | |
| 'title' => null, | |
| 'lb_url' => isset($attachment->media->image->src) ? $attachment->media->image->src : null, | |
| 'url' => isset($attachment->media->image->src) ? $attachment->media->image->src : null, | |
| 'width' => isset($attachment->media->image->width) ? $attachment->media->image->width : 500, | |
| 'height' => isset($attachment->media->image->height) ? $attachment->media->image->height : 500 | |
| ); | |
| } | |
| return $gallery; | |
| } | |
| return; | |
| } | |
| /** | |
| * Get video from Facebook data .json | |
| * @since 2.0.0 | |
| */ | |
| public function get_video($data) { | |
| if ( isset( $data->type ) && $data->type == 'video' && isset( $data->source ) && ! empty( $data->source ) ) { | |
| return array( | |
| 'type' => 'video', | |
| 'duration' => null, | |
| 'source' => array( | |
| 'mp4' => $data->source, | |
| ) | |
| ); | |
| } | |
| } | |
| /** | |
| * Build data array for the grid | |
| * @since 2.0.0 | |
| */ | |
| public function build_media_array($response) { | |
| $items = array(); | |
| if (isset($response->data)) { | |
| foreach ($response->data as $data) { | |
| $video = $this->get_video($data); | |
| $gallery = $this->get_gallery($data); | |
| $post_format = ($gallery) ? 'gallery' : 'standard'; | |
| $post_format = ($video) ? 'video' : $post_format; | |
| $items[] = array( | |
| 'ID' => strstr($data->id, '_') ? str_replace('_', '', strstr($data->id, '_')) : $data->id, | |
| 'date' => (isset($data->created_time)) ? strtotime($data->created_time) : null, | |
| 'post_type' => null, | |
| 'format' => $post_format, | |
| 'url' => (isset($data->link)) ? $data->link : null, | |
| 'url_target' => '_blank', | |
| 'title' => $this->get_title($data), | |
| 'excerpt' => $this->get_excerpt($data), | |
| 'terms' => null, | |
| 'author' => array( | |
| 'ID' => (isset($data->from->id)) ? $data->from->id : null, | |
| 'name' => (isset($data->from->name)) ? $data->from->name : null, | |
| 'url' => (isset($data->from->id)) ? '//www.facebook.com/'.$data->from->id : null, | |
| 'avatar' => $this->get_user_picture($data) | |
| ), | |
| 'likes_number' => (isset($data->likes->summary->total_count)) ? $data->likes->summary->total_count : null, | |
| 'likes_title' => __( 'Like on FaceBook', 'tg-text-domain' ), | |
| 'comments_number' => (isset($data->comments->data)) ? sizeof($data->comments->data) : null, | |
| 'views_number' => null, | |
| 'image' => $this->get_image($data), | |
| 'gallery' => $gallery, | |
| 'video' => $video, | |
| 'audio' => null, | |
| 'quote' => null, | |
| 'link' => null, | |
| 'meta_data' => null | |
| ); | |
| } | |
| } | |
| return $items; | |
| } | |
| } |
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