/**
* Publish a post to a Facebook User Timeline.
*
* @since 1.0
*
* @global \Facebook_Loader $facebook_loader Access Facebook application credentials
* @param int $post_id WordPress post identifier
* @param stdClass|WP_Post $post WordPress post object
* @return void
*/
public static function publish_to_facebook_profile($post_id, $post)
{
global $facebook_loader;
$post_id = absint($post_id);
if (!(isset($facebook_loader) && $facebook_loader->app_access_token_exists() && $post && $post_id)) {
return;
}
// does the current post have an existing Facebook post id stored? no need to publish again
if (get_post_meta($post_id, 'fb_author_post_id', true)) {
return;
}
$meta_box_present = true;
if (defined('XMLRPC_REQUEST') && XMLRPC_REQUEST) {
$meta_box_present = false;
}
if (!class_exists('Facebook_Social_Publisher_Meta_Box_Profile')) {
require_once dirname(__FILE__) . '/publish-box-profile.php';
}
if ($meta_box_present && get_post_meta($post_id, Facebook_Social_Publisher_Meta_Box_Profile::POST_META_KEY_FEATURE_ENABLED, true) === '0') {
return;
}
setup_postdata($post);
$post_type = get_post_type($post);
if (!(self::post_type_is_public($post_type) && post_type_supports($post_type, 'author') && isset($post->post_author))) {
return;
}
$post_author = (int) $post->post_author;
if (!$post_author) {
return;
}
// test the author, not the current actor
if (!self::user_can_publish_to_facebook($post_author)) {
return;
}
if (!class_exists('Facebook_User')) {
require_once $facebook_loader->plugin_directory . 'facebook-user.php';
}
$author_facebook_id = Facebook_User::get_facebook_profile_id($post_author);
if (!$author_facebook_id) {
return;
}
// check our assumptions about a valid link in place
// fail if a piece of the filter process killed our response
$link = apply_filters('facebook_rel_canonical', get_permalink($post_id));
if (!$link) {
return;
}
$og_action = false;
if (!class_exists('Facebook_Social_Publisher_Settings')) {
require_once $facebook_loader->plugin_directory . 'admin/settings-social-publisher.php';
}
if (get_option(Facebook_Social_Publisher_Settings::OPTION_OG_ACTION)) {
$og_action = true;
}
if (!class_exists('Facebook_Open_Graph_Protocol')) {
require_once $facebook_loader->plugin_directory . 'open-graph-protocol.php';
}
$path = $author_facebook_id . '/';
if ($og_action && Facebook_Open_Graph_Protocol::get_post_og_type($post) === 'article') {
$story = array('article' => $link);
$path .= 'news.publishes';
if ($meta_box_present) {
$story['fb:explicitly_shared'] = 'true';
}
} else {
$story = array('link' => $link);
$path .= 'feed';
}
$message = get_post_meta($post_id, Facebook_Social_Publisher_Meta_Box_Profile::POST_META_KEY_MESSAGE, true);
if (is_string($message) && $message) {
$story['message'] = trim($message);
}
if (!class_exists('Facebook_WP_Extend')) {
require_once $facebook_loader->plugin_directory . 'includes/facebook-php-sdk/class-facebook-wp.php';
}
$status_messages = array();
try {
$publish_result = Facebook_WP_Extend::graph_api_with_app_access_token($path, 'POST', $story);
if (isset($publish_result['id'])) {
update_post_meta($post_id, 'fb_author_post_id', sanitize_text_field($publish_result['id']));
delete_post_meta($post_id, Facebook_Social_Publisher_Meta_Box_Profile::POST_META_KEY_MESSAGE);
delete_post_meta($post_id, Facebook_Social_Publisher_Meta_Box_Profile::POST_META_KEY_FEATURE_ENABLED);
}
} catch (WP_FacebookApiException $e) {
$error_result = $e->getResult();
$status_messages[] = array('message' => esc_html(__('Failed posting to your Facebook Timeline.', 'facebook')) . ' ' . esc_html(__('Error', 'facebook')) . ': ' . esc_html(json_encode($error_result['error'])), 'error' => true);
}
if (isset($publish_result) && isset($publish_result['id'])) {
$link = '<a href="' . esc_url('https://www.facebook.com/' . $publish_result['id'], array('http', 'https')) . '" target="_blank">' . esc_html(__('Facebook Timeline', 'facebook')) . '</a>';
if (empty($message)) {
$message = sprintf(esc_html(__('Posted to %s', 'facebook')), $link);
} else {
$message = sprintf(esc_html(__('Posted to %1$s with message "%2$s"', 'facebook')), $link, esc_html($message));
}
$status_messages[] = array('message' => $message, 'error' => false);
}
// add new status messages
if (!empty($status_messages)) {
$existing_status_messages = get_post_meta($post_id, 'fb_status_messages', true);
if (is_array($existing_status_messages) && !empty($existing_status_messages)) {
$status_messages = array_merge($existing_status_messages, $status_messages);
}
update_post_meta($post_id, 'facebook_status_messages', $status_messages);
add_filter('redirect_post_location', array('Facebook_Social_Publisher', 'add_new_post_location'));
}
}
/**
* Post to the timeline of mentioned Facebook pages
*
* @since 1.1
* @param stdClass $post post object
* @return array status messages with message and error. used to update publisher of performed action on admin_notices
*/
public static function post_to_mentioned_pages_timelines($post)
{
global $facebook;
$post_id = $post->ID;
$post_type = get_post_type($post);
if (!$post_type) {
return;
}
$mentioned_pages = get_post_meta($post_id, 'fb_mentioned_pages', true);
if (!is_array($mentioned_pages) || empty($mentioned_pages)) {
return;
}
// check our assumptions about a valid link in place
// fail if a piece of the filter process killed our response
$link = apply_filters('facebook_rel_canonical', get_permalink($post_id));
if (!$link) {
return;
}
$story = array('link' => $link, 'ref' => 'fbwpp');
// either message or link is required
// confident we have link, making message optional
$mentioned_pages_message = get_post_meta($post_id, 'fb_mentioned_pages_message', true);
if (!empty($mentioned_pages_message)) {
$story['message'] = $mentioned_pages_message;
}
unset($mentioned_pages_message);
// does current post type and the current theme support post thumbnails?
if (post_type_supports($post_type, 'thumbnail') && function_exists('has_post_thumbnail') && has_post_thumbnail()) {
list($post_thumbnail_url, $post_thumbnail_width, $post_thumbnail_height) = wp_get_attachment_image_src(get_post_thumbnail_id($post_id), 'full');
if (!empty($post_thumbnail_url)) {
$story['picture'] = $post_thumbnail_url;
}
}
if (post_type_supports($post_type, 'title')) {
$title = trim(html_entity_decode(get_the_title($post_id), ENT_COMPAT, 'UTF-8'));
if ($title) {
$story['name'] = $title;
}
unset($title);
}
if (!class_exists('Facebook_Open_Graph_Protocol')) {
require_once dirname(dirname(dirname(__FILE__))) . '/open-graph-protocol.php';
}
if (post_type_supports($post_type, 'excerpt') && !empty($post->post_excerpt)) {
$excerpt = trim(apply_filters('get_the_excerpt', $post->post_excerpt));
if ($excerpt) {
$excerpt = Facebook_Open_Graph_Protocol::clean_description($excerpt);
if ($excerpt) {
$story['caption'] = $excerpt;
}
}
unset($excerpt);
}
$post_content = Facebook_Open_Graph_Protocol::clean_description($post->post_content, false);
if ($post_content) {
$story['description'] = $post_content;
}
unset($post_content);
// define a photo URL template once, with SSL goodness. sprintf later inside the loop
$photo_params = array('width' => 15, 'height' => 15);
if (is_ssl()) {
$photo_params['return_ssl_resources'] = 1;
}
$photo_url = 'http' . (is_ssl() ? 's' : '') . '://graph.facebook.com/%s/picture?' . http_build_query($photo_params);
unset($photo_params);
$pages_posts = array();
$publish_ids_pages = array();
foreach ($mentioned_pages as $page) {
try {
$publish_result = $facebook->api('/' . $page['id'] . '/feed', 'POST', $story);
$published_id = sanitize_text_field($publish_result['id']);
$publish_ids_pages[] = $published_id;
$pages_posts[] = '<a href="' . esc_url(self::get_permalink_from_feed_publish_id($published_id), array('http', 'https')) . '" target="_blank"><img src="' . esc_url(sprintf($photo_url, $page['id']), array('http', 'https')) . '" alt="' . (isset($page['name']) ? esc_attr($page['name']) : '') . '" width="15" height="15" /></a>';
} catch (WP_FacebookApiException $e) {
$error_result = $e->getResult();
if ($e->getCode() == 210) {
$status_messages[] = array('message' => esc_html(__('Failed posting to mentioned page\'s Facebook Timeline.', 'facebook')) . ' <img src="' . esc_url(sprintf($photo_url, $page['id']), array('http', 'https')) . '" alt="' . (isset($page['name']) ? esc_attr($page['name']) : '') . '" width="15" height="15" /> ' . esc_html(__('Error: Page doesn\'t allow posts from other Facebook users. Full error:', 'facebook')) . ' ' . esc_html(json_encode($error_result['error'])), 'error' => true);
} else {
$status_messages[] = array('message' => __('Failed posting to mentioned page\'s Facebook Timeline.', 'facebook') . ' <img src="' . esc_url(sprintf($photo_url, $page['id']), array('http', 'https')) . '" alt="' . (isset($page['name']) ? esc_attr($page['name']) : '') . '" width="15" height="15" /> ' . esc_html(__('Error', 'facebook')) . ': ' . esc_html(json_encode($error_result['error'])), 'error' => true);
}
}
}
if (!empty($publish_ids_pages)) {
update_post_meta($post_id, 'fb_mentioned_pages_post_ids', $publish_ids_pages);
}
if (!empty($publish_ids_pages)) {
$status_messages[] = array('message' => esc_html(__('Posted to mentioned pages\' Facebook Timelines.', 'facebook')) . ' ' . implode(' ', $pages_posts), 'error' => false);
}
return $status_messages;
}
