/**
* Renderer for the Metabox.
*/
public static function render_meta_box()
{
$ajax_nonce = wp_create_nonce("instant-articles-force-submit");
$post_id = intval($_POST['post_ID']);
$post = get_post($post_id);
$adapter = new Instant_Articles_Post($post);
$article = $adapter->to_instant_article();
$canonical_url = $adapter->get_canonical_url();
$submission_status = null;
$published = 'publish' === $post->post_status;
$dev_mode = false;
$force_submit = get_post_meta($post_id, Instant_Articles_Publisher::FORCE_SUBMIT_KEY, true);
$should_submit_post = apply_filters('instant_articles_should_submit_post', true, $adapter);
Instant_Articles_Wizard::menu_items();
$settings_page_href = Instant_Articles_Wizard::get_url();
$publishing_settings = Instant_Articles_Option_Publishing::get_option_decoded();
$publish_with_warnings = $publishing_settings['publish_with_warnings'];
if ($published) {
try {
$fb_app_settings = Instant_Articles_Option_FB_App::get_option_decoded();
$fb_page_settings = Instant_Articles_Option_FB_Page::get_option_decoded();
$publishing_settings = Instant_Articles_Option_Publishing::get_option_decoded();
$dev_mode = isset($publishing_settings['dev_mode']) ? $publishing_settings['dev_mode'] ? true : false : false;
if (isset($fb_app_settings['app_id']) && isset($fb_app_settings['app_secret']) && isset($fb_page_settings['page_access_token']) && isset($fb_page_settings['page_id'])) {
// Instantiate a new Client to get the status of this article.
$client = Client::create($fb_app_settings['app_id'], $fb_app_settings['app_secret'], $fb_page_settings['page_access_token'], $fb_page_settings['page_id'], $dev_mode);
$submission_status_id = get_post_meta($post_id, Instant_Articles_Publisher::SUBMISSION_ID_KEY, true);
if (!empty($submission_status_id)) {
$submission_status = $client->getSubmissionStatus($submission_status_id);
} else {
// Grab the latest status of this article and display.
$article_id = $client->getArticleIDFromCanonicalURL($canonical_url);
$submission_status = $client->getLastSubmissionStatus($article_id);
}
}
} catch (FacebookResponseException $e) {
$submission_status = null;
}
}
include dirname(__FILE__) . '/meta-box-template.php';
die;
}
/**
* Automatically add meta tag for Instant Articles URL claiming
* when page is set.
*
* @since 0.4
*/
function inject_url_claiming_meta_tag()
{
$publishing_settings = Instant_Articles_Option_Publishing::get_option_decoded();
$fb_page_settings = Instant_Articles_Option_FB_Page::get_option_decoded();
if (isset($fb_page_settings['page_id'])) {
?>
<meta property="fb:pages" content="<?php
echo esc_attr($fb_page_settings['page_id']);
?>
" />
<?php
}
}
/**
* Render post
*
* @since 0.1
* @return InstantArticle
*/
public function to_instant_article()
{
/**
* Fires before the instant article is rendered.
*
* @since 0.1
* @param Instant_Article_Post $instant_article_post The instant article post.
*/
do_action('instant_articles_before_transform_post', $this);
// Get time zone configured in WordPress. Default to UTC if no time zone configured.
$date_time_zone = get_option('timezone_string') ? new DateTimeZone(get_option('timezone_string')) : new DateTimeZone('UTC');
// Initialize transformer
$file_path = plugin_dir_path(__FILE__) . 'rules-configuration.json';
$configuration = file_get_contents($file_path);
$transformer = new Transformer();
$this->transformer = $transformer;
$transformer->loadRules($configuration);
$transformer = apply_filters('instant_articles_transformer_rules_loaded', $transformer);
$settings_publishing = Instant_Articles_Option_Publishing::get_option_decoded();
if (isset($settings_publishing['custom_rules_enabled']) && !empty($settings_publishing['custom_rules_enabled']) && isset($settings_publishing['custom_rules']) && !empty($settings_publishing['custom_rules'])) {
$transformer->loadRules($settings_publishing['custom_rules']);
}
$transformer = apply_filters('instant_articles_transformer_custom_rules_loaded', $transformer);
$blog_charset = get_option('blog_charset');
$header = Header::create()->withPublishTime(Time::create(Time::PUBLISHED)->withDatetime(new DateTime($this->_post->post_date, $date_time_zone)))->withModifyTime(Time::create(Time::MODIFIED)->withDatetime(new DateTime($this->_post->post_modified, $date_time_zone)));
$title = $this->get_the_title();
if ($title) {
$document = new DOMDocument();
libxml_use_internal_errors(true);
$document->loadHTML('<?xml encoding="' . $blog_charset . '" ?><h1>' . $title . '</h1>');
libxml_use_internal_errors(false);
$transformer->transform($header, $document);
}
if ($this->has_subtitle()) {
$header->withSubTitle($this->get_the_subtitle());
}
$authors = $this->get_the_authors();
foreach ($authors as $author) {
$author_obj = Author::create();
if ($author->display_name) {
$author_obj->withName($author->display_name);
}
if ($author->bio) {
$author_obj->withDescription($author->bio);
}
if ($author->user_url) {
$author_obj->withURL($author->user_url);
}
$header->addAuthor($author_obj);
}
$kicker = $this->get_the_kicker();
if ($kicker) {
$header->withKicker($kicker);
}
$cover = $this->get_cover_media();
if ($cover->getUrl()) {
$header->withCover($cover);
}
$this->instant_article = InstantArticle::create()->withCanonicalUrl($this->get_canonical_url())->withHeader($header)->addMetaProperty('op:generator:application', 'facebook-instant-articles-wp')->addMetaProperty('op:generator:application:version', IA_PLUGIN_VERSION);
$settings_style = Instant_Articles_Option_Styles::get_option_decoded();
if (isset($settings_style['article_style']) && !empty($settings_style['article_style'])) {
$this->instant_article->withStyle($settings_style['article_style']);
} else {
$this->instant_article->withStyle('default');
}
$libxml_previous_state = libxml_use_internal_errors(true);
$document = new DOMDocument('1.0', get_option('blog_charset'));
$content = $this->get_the_content();
// DOMDocument isn’t handling encodings too well, so let’s help it a little.
if (function_exists('mb_convert_encoding')) {
$content = mb_convert_encoding($content, 'HTML-ENTITIES', get_option('blog_charset'));
} else {
$content = htmlspecialchars_decode(utf8_decode(htmlentities($content, ENT_COMPAT, 'utf-8', false)));
}
$result = $document->loadHTML('<!doctype html><html><body>' . $content . '</body></html>');
// We need to make sure that scripts use absolute URLs and not relative URLs.
$scripts = $document->getElementsByTagName('script');
if (!empty($scripts)) {
foreach ($scripts as $script) {
$src = $script->getAttribute('src');
$explode_src = parse_url($src);
if (is_array($explode_src) && empty($explode_src['scheme']) && !empty($explode_src['host']) && !empty($explode_src['path'])) {
$src = 'https://' . $explode_src['host'] . $explode_src['path'];
}
$script->setAttribute('src', $src);
}
}
libxml_clear_errors();
libxml_use_internal_errors($libxml_previous_state);
$document = apply_filters('instant_articles_parsed_document', $document);
if ($result) {
$transformer->transform($this->instant_article, $document);
}
$this->add_ads_from_settings();
$this->add_analytics_from_settings();
$this->instant_article = apply_filters('instant_articles_transformed_element', $this->instant_article);
/**
* Fires after the instant article is rendered.
*
* @since 0.1
* @param Instant_Article_Post $instant_article_post The instant article post.
*/
do_action('instant_articles_after_transform_post', $this);
return $this->instant_article;
}
/**
* Submits article to Instant Articles.
*
* @param string $post_id The identifier of post.
* @param Post $post The WP Post.
*/
public static function submit_article($post_id, $post)
{
// Don't process if this is just a revision or an autosave.
if (wp_is_post_revision($post) || wp_is_post_autosave($post)) {
return;
}
// Don't process if this post is not published
if ('publish' !== $post->post_status) {
return;
}
// Only process posts
$post_types = apply_filters('instant_articles_post_types', array('post'));
if (!in_array($post->post_type, $post_types)) {
return;
}
// Transform the post to an Instant Article.
$adapter = new Instant_Articles_Post($post);
$article = $adapter->to_instant_article();
// Skip empty articles or articles missing title.
// This is important because the save_post action is also triggered by bulk updates, but in this case
// WordPress does not load the content field from DB for performance reasons. In this case, articles
// will be empty here, despite of them actually having content.
if (count($article->getChildren()) === 0 || !$article->getHeader() || !$article->getHeader()->getTitle()) {
return;
}
// Instantiate an API client.
try {
$fb_app_settings = Instant_Articles_Option_FB_App::get_option_decoded();
$fb_page_settings = Instant_Articles_Option_FB_Page::get_option_decoded();
$publishing_settings = Instant_Articles_Option_Publishing::get_option_decoded();
$dev_mode = isset($publishing_settings['dev_mode']) ? $publishing_settings['dev_mode'] ? true : false : false;
if (isset($fb_app_settings['app_id']) && isset($fb_app_settings['app_secret']) && isset($fb_page_settings['page_access_token']) && isset($fb_page_settings['page_id'])) {
$client = Client::create($fb_app_settings['app_id'], $fb_app_settings['app_secret'], $fb_page_settings['page_access_token'], $fb_page_settings['page_id'], $dev_mode);
// Don't publish posts with password protection
if (post_password_required($post)) {
// Unpublishes if already published and from now on it started to have password protection
$client->removeArticle($article->getCanonicalURL());
delete_post_meta($post_id, self::SUBMISSION_ID_KEY);
return;
}
// Don't process if contains warnings and blocker flag for transformation warnings is turned on.
if (count($adapter->transformer->getWarnings()) > 0 && isset($publishing_settings['block_publish_with_warnings']) && $publishing_settings['block_publish_with_warnings']) {
// Unpublishes if already published
$client->removeArticle($article->getCanonicalURL());
delete_post_meta($post_id, self::SUBMISSION_ID_KEY);
return;
}
if ($dev_mode) {
$published = false;
} else {
// Any publish status other than 'publish' means draft for the Instant Article.
$published = true;
}
try {
// Import the article.
$submission_id = $client->importArticle($article, $published);
update_post_meta($post_id, self::SUBMISSION_ID_KEY, $submission_id);
} catch (Exception $e) {
// Try without taking live for pages not yet reviewed.
$submission_id = $client->importArticle($article, false);
update_post_meta($post_id, self::SUBMISSION_ID_KEY, $submission_id);
}
}
} catch (Exception $e) {
Logger::getLogger('instantarticles-wp-plugin')->error('Unable to submit article.', $e->getTraceAsString());
}
}
/**
* Render post
*
* @since 0.1
* @return InstantArticle
*/
public function to_instant_article()
{
/**
* Fires before the instant article is rendered.
*
* @since 0.1
* @param Instant_Article_Post $instant_article_post The instant article post.
*/
do_action('instant_articles_before_transform_post', $this);
// Get time zone configured in WordPress. Default to UTC if no time zone configured.
$date_time_zone = get_option('timezone_string') ? new DateTimeZone(get_option('timezone_string')) : new DateTimeZone('UTC');
// Initialize transformer
$file_path = plugin_dir_path(__FILE__) . 'rules-configuration.json';
$configuration = file_get_contents($file_path);
$transformer = new Transformer();
$this->transformer = $transformer;
$transformer->loadRules($configuration);
$transformer = apply_filters('instant_articles_transformer_rules_loaded', $transformer);
$settings_publishing = Instant_Articles_Option_Publishing::get_option_decoded();
if (isset($settings_publishing['custom_rules_enabled']) && !empty($settings_publishing['custom_rules_enabled']) && isset($settings_publishing['custom_rules']) && !empty($settings_publishing['custom_rules'])) {
$transformer->loadRules($settings_publishing['custom_rules']);
}
$transformer = apply_filters('instant_articles_transformer_custom_rules_loaded', $transformer);
$blog_charset = get_option('blog_charset');
$header = Header::create()->withPublishTime(Time::create(Time::PUBLISHED)->withDatetime(new DateTime($this->_post->post_date, $date_time_zone)))->withModifyTime(Time::create(Time::MODIFIED)->withDatetime(new DateTime($this->_post->post_modified, $date_time_zone)));
$title = $this->get_the_title();
if ($title) {
$document = new DOMDocument();
libxml_use_internal_errors(true);
$document->loadHTML('<?xml encoding="' . $blog_charset . '" ?><h1>' . $title . '</h1>');
libxml_use_internal_errors(false);
$transformer->transform($header, $document);
}
if ($this->has_subtitle()) {
$header->withSubTitle($this->get_the_subtitle());
}
$authors = $this->get_the_authors();
foreach ($authors as $author) {
$author_obj = Author::create();
if ($author->display_name) {
$author_obj->withName($author->display_name);
}
if ($author->bio) {
$author_obj->withDescription($author->bio);
}
if ($author->user_url) {
$author_obj->withURL($author->user_url);
}
$header->addAuthor($author_obj);
}
$kicker = $this->get_the_kicker();
if ($kicker) {
$header->withKicker($kicker);
}
$cover = $this->get_cover_media();
if ($cover->getUrl()) {
$header->withCover($cover);
}
$this->instant_article = InstantArticle::create()->withCanonicalUrl($this->get_canonical_url())->withHeader($header)->addMetaProperty('op:generator:application', 'facebook-instant-articles-wp')->addMetaProperty('op:generator:application:version', IA_PLUGIN_VERSION);
$settings_style = Instant_Articles_Option_Styles::get_option_decoded();
if (isset($settings_style['article_style']) && !empty($settings_style['article_style'])) {
$this->instant_article->withStyle($settings_style['article_style']);
} else {
$this->instant_article->withStyle('default');
}
$transformer->transformString($this->instant_article, $this->get_the_content(), get_option('blog_charset'));
$this->add_ads_from_settings();
$this->add_analytics_from_settings();
$this->instant_article = apply_filters('instant_articles_transformed_element', $this->instant_article);
/**
* Fires after the instant article is rendered.
*
* @since 0.1
* @param Instant_Article_Post $instant_article_post The instant article post.
*/
do_action('instant_articles_after_transform_post', $this);
return $this->instant_article;
}
