/wp-content/plugins/seo-ultimate/modules/opengraph/opengraph.php

<?php

/**

 * Open Graph Integrator Module

 * 

 * @since 7.3

 */



if (class_exists('SU_Module')) {



class SU_OpenGraph extends SU_Module {

	

	var $namespaces_declared = false;

	var $jlsuggest_box_post_id = false;

	

	function get_module_title() { return __('Open Graph Integrator', 'seo-ultimate'); }

	function get_menu_title() { return __('Open Graph', 'seo-ultimate'); }

	

	function get_default_settings() {

		return array(

			  'default_post_og_type' => 'article'

			, 'default_page_og_type' => 'article'

			, 'default_post_twitter_card' => 'summary'

			, 'default_page_twitter_card' => 'summary'

			, 'default_attachment_twitter_card' => 'photo'

		);

	}

	

	function init() {

		add_filter('language_attributes', array(&$this, 'html_tag_xmlns_attrs'), 1000);

		add_action('su_head', array(&$this, 'head_tag_output'));

		add_filter('su_get_setting-opengraph-twitter_site_handle', array(&$this, 'sanitize_twitter_handle'));

		add_filter('user_contactmethods', array(&$this, 'add_twitter_field'));

	}

	

	function html_tag_xmlns_attrs($attrs) {

		$this->namespaces_declared = true;

		return $attrs . ' ' . implode(' ', $this->get_xmlns_attrs());

	}

	

	function get_xmlns_attrs() {

		return array(

			  'og' => 'xmlns:og="http://ogp.me/ns#"'

			, 'fb' => 'xmlns:fb="http://ogp.me/ns/fb#"'

		);

	}

	

	function head_tag_output() {

		

		$tags = $twitter_tags = array();

		

		if (is_home()) {

			

			//Type

			$tags['og:type'] = 'blog';

			

			//Twitter Type

			$twitter_tags['twitter:card'] = 'summary';

			

			//Title

			if (!($tags['og:title'] = $this->get_setting('home_og_title')))

				$tags['og:title'] = get_bloginfo('name');

			

			//Description

			if (!($tags['og:description'] = $this->get_setting('home_og_description')))

				$tags['og:description'] = get_bloginfo('description');

			

			//URL

			$tags['og:url'] = get_bloginfo('url');

			

			//Image

			$tags['og:image'] = $this->get_setting('home_og_image');

			

		} elseif (is_singular()) {

			

			global $wp_query;

			$post = $wp_query->get_queried_object();

			

			if (is_object($post)) {

				//Type

				if (!($tags['og:type'] = $this->get_postmeta('og_type')))

					$tags['og:type'] = $this->get_setting("default_{$post->post_type}_og_type");

				

				//Twitter Type

				if (!($twitter_tags['twitter:card'] = $this->get_postmeta('twitter_card')))

					$twitter_tags['twitter:card'] = $this->get_setting("default_{$post->post_type}_twitter_card");

				

				//Title

				if (!($tags['og:title'] = $this->get_postmeta('og_title')))

					$tags['og:title'] = strip_tags( apply_filters( 'single_post_title', $post->post_title ) );

				

				//Description

				if (!($tags['og:description'] = $this->get_postmeta('og_description')))

					if ($this->plugin->call_module_func('meta-descriptions', 'get_meta_desc', $meta_desc, false) && $meta_desc)

						$tags['og:description'] = $meta_desc;

				

				//URL

				$tags['og:url'] = get_permalink($post->ID);

				

				//Image

				$tags['og:image'] = $this->jlsuggest_value_to_url($this->get_postmeta('og_image'), true);

				if (!$tags['og:image']) {

					if ('attachment' == $post->post_type)

						$tags['og:image'] = wp_get_attachment_url();

					elseif ($thumbnail_id = get_post_thumbnail_id($post->ID))

						$tags['og:image'] = wp_get_attachment_url($thumbnail_id);

				}

				

				//Additional fields

				switch ($tags['og:type']) {

					case 'article':

						

						$tags['article:published_time'] = get_the_date('Y-m-d');

						$tags['article:modified_time'] = get_the_modified_date('Y-m-d');

						$tags['article:author'] = get_author_posts_url($post->post_author);

						

						$single_category = (count(get_the_category()) == 1);

						

						$taxonomy_names = suwp::get_taxonomy_names();

						foreach ($taxonomy_names as $taxonomy_name) {

							if ($terms = get_the_terms(get_the_ID(), $taxonomy_name)) {

								

								if ($single_category && 'category' == $taxonomy_name)

									$meta_property = 'article:section';

								else

									$meta_property = 'article:tag';

								

								foreach ($terms as $term) {

									$tags[$meta_property][] = $term->name;

								}

							}

						}

						

						break;

				}

				

				//Author's Twitter Handle

				$handle = get_user_meta($post->post_author, 'twitter', true);

				$handle = $this->sanitize_twitter_handle($handle);

				$twitter_tags['twitter:creator'] = $handle;

			}

		} elseif (is_author()) {

			

			global $wp_query;

			$author = $wp_query->get_queried_object();

			

			if (is_object($author)) {

				//Type

				$tags['og:type'] = 'profile';

				

				//Title

				$tags['og:title'] = $author->display_name;

				

				//Description

				$tags['og:title'] = get_the_author_meta('description', $author->ID);

				

				//Image

				$tags['og:image'] = false;

				

				//URL

				$tags['og:url'] = get_author_posts_url($author->ID, $author->user_nicename);

				

				//First Name

				$tags['profile:first_name'] = get_the_author_meta('first_name', $author->ID);

				

				//Last Name

				$tags['profile:last_name'] = get_the_author_meta('last_name', $author->ID);

				

				//Username

				$tags['profile:username'] = $author->user_login;

				

				//Twitter Handle

				$handle = get_user_meta($author->ID, 'twitter', true);

				$handle = $this->sanitize_twitter_handle($handle);

				$twitter_tags['twitter:creator'] = $handle;

			}

		} else

			return;

		

		if ($tags['og:type'] == 'none')

			$tags['og:type'] = '';

		

		if ((!isset($tags['og:image']) || !$tags['og:image']) && $tags['og:image'] !== false)

			$tags['og:image'] = $this->jlsuggest_value_to_url($this->get_setting('default_og_image'), true);

		

		//Site Name

		if (!($tags['og:site_name'] = $this->get_setting('og_site_name')))

			$tags['og:site_name'] = get_bloginfo('name');

		

		//FB App ID

		$tags['fb:app_id'] = $this->get_setting('default_fb_app_id');

		

		//Twitter Site Handle

		$twitter_tags['twitter:site'] = $this->get_setting('twitter_site_handle');

		

		//Output meta tags

		$xmlns_attrs = $this->namespaces_declared ? array() : $this->get_xmlns_attrs();

		

		$output_formats = array(

			  '<meta property="%1$s" content="%2$s" %3$s/>' => $tags

			, '<meta name="%1$s" content="%2$s" />' => $twitter_tags

		);

		foreach ($output_formats as $html_format => $format_tags) {

			foreach ($format_tags as $property => $values) {

				foreach ((array)$values as $value) {

					$property = su_esc_attr($property);

					$value  = su_esc_attr($value);

					if (strlen(trim($property)) && strlen(trim($value))) {

						$xmlns = sustr::upto($property, ':');

						$xmlns_attr = empty($xmlns_attrs[$xmlns]) ? '' : $xmlns_attrs[$xmlns] . ' ';

						echo "\t";

						printf($html_format, $property, $value, $xmlns_attr);

						echo "\n";

					}

				}

			}

		}

	}

	

	function admin_page_init() {

		$this->jlsuggest_init();

	}

	

	function editor_init() {

		$this->jlsuggest_init();

	}

	

	function get_admin_page_tabs() {

		

		$postmeta_edit_tabs = $this->get_postmeta_edit_tabs(array(

			  array(

				  'type' => 'dropdown'

				, 'options' => array_merge(array('' => __('Use default', 'seo-ultimate')), $this->get_type_options())

				, 'name' => 'og_type'

				, 'label' => __('Type', 'seo-ultimate')

				)

			, array(

				  'type' => 'textbox'

				, 'name' => 'og_title'

				, 'label' => __('Title', 'seo-ultimate')

				)

			, array(

				  'type' => 'textbox'

				, 'name' => 'og_description'

				, 'label' => __('Description', 'seo-ultimate')

				)

			, array(

				  'type' => 'jlsuggest'

				, 'name' => 'og_image'

				, 'label' => __('Image', 'seo-ultimate')

				, 'options' => array(

					  'params' => 'types=posttype_attachment&post_mime_type=image/*'

				))

		));

		

		//Remove the Image boxes from the Media tab

		//(it's obvious what the og:image of an attachment should be...)

		unset($postmeta_edit_tabs['attachment']['callback'][5][3]);

		

		return array_merge(

			  array(

				  array('title' => __('Sitewide Values', 'seo-ultimate'), 'id' => 'su-sitewide-values', 'callback' => 'global_tab')

				, array('title' => __('Default Values', 'seo-ultimate'), 'id' => 'su-default-values', 'callback' => 'defaults_tab')

				, array('title' => __('Blog Homepage', 'seo-ultimate'), 'id' => 'su-homepage', 'callback' => 'home_tab')

				)

			, $postmeta_edit_tabs

		);

	}

	

	function global_tab() {

		$this->admin_form_table_start();

		$this->textbox('og_site_name', __('Site Name', 'seo-ultimate'), false, false, array(), array('placeholder' => get_bloginfo('name')));

		$this->textbox('default_fb_app_id', __('Facebook App ID', 'seo-ultimate'));

		$this->textbox('twitter_site_handle', __('This Site&#8217;s Twitter Handle', 'seo-ultimate'));

		$this->admin_form_table_end();

	}

	

	function defaults_tab() {

		$posttypes = suwp::get_post_type_objects();

		

		$this->admin_subheader(__('Default Types', 'seo-ultimate'));

		$this->admin_wftable_start(array(

			  'posttype' => __('Post Type', 'seo-ultimate')

			, 'og' => __('Open Graph Type', 'seo-ultimate')

			, 'twitter' => __('Twitter Type', 'seo-ultimate')

		));

		foreach ($posttypes as $posttype) {

			echo "<tr valign='middle'>\n";

			echo "\t<th class='su-opengraph-posttype' scope='row'>" . esc_html($posttype->labels->name) . "</th>\n";

			echo "\t<td class='su-opengraph-og'>";

			$this->dropdown("default_{$posttype->name}_og_type", $this->get_type_options(), false, '%s', array('in_table' => false));

			echo "</td>\n";

			echo "\t<td class='su-opengraph-twitter'>";

			$this->dropdown("default_{$posttype->name}_twitter_card", $this->get_twitter_type_options(), false, '%s', array('in_table' => false));

			echo "</td>\n";

			echo "</tr>\n";

		}

		$this->admin_wftable_end();

		

		$this->admin_subheader(__('Default Image', 'seo-ultimate'));

		$this->admin_form_table_start();

		

		$this->textblock(__('In the box below, you can specify an image URL or an image from your media library to use as a default image in the event that there is no image otherwise specified for a given webpage on your site.', 'seo-ultimate'));

		

		$this->jlsuggest_box('default_og_image', __('Default Image', 'seo-ultimate'), 'types=posttype_attachment&post_mime_type=image/*');

		

		$this->admin_form_table_end();

	}

	

	function home_tab() {

		$this->admin_form_table_start();

		$this->textbox('home_og_title', __('Blog Homepage Title', 'seo-ultimate'), false, false, array(), array('placeholder' => get_bloginfo('name')));

		$this->textbox('home_og_description', __('Blog Homepage Description', 'seo-ultimate'), false, false, array(), array('placeholder' => get_bloginfo('description')));

		$this->jlsuggest_box('home_og_image', __('Blog Homepage Image', 'seo-ultimate'), 'types=posttype_attachment&post_mime_type=image/*');

		$this->admin_form_table_end();

	}

	

	function postmeta_fields($fields) {

		

		$fields['opengraph'][10]['og_title'] = $this->get_postmeta_textbox('og_title', __('Title:', 'seo-ultimate'));

		$fields['opengraph'][20]['og_description'] = $this->get_postmeta_textarea('og_description', __('Description:', 'seo-ultimate'));

		$fields['opengraph'][30]['og_image'] = $this->get_postmeta_jlsuggest_box('og_image', __('Image:', 'seo-ultimate'), 'types=posttype_attachment&post_mime_type=image/*');

		$fields['opengraph'][40]['og_type'] = $this->get_postmeta_dropdown('og_type', array_merge(array('' => __('Use default', 'seo-ultimate')), $this->get_type_options()), __('Open Graph Type:', 'seo-ultimate'));

		$fields['opengraph'][50]['twitter_card'] = $this->get_postmeta_dropdown('twitter_card', array_merge(array('' => __('Use default', 'seo-ultimate')), $this->get_twitter_type_options()), __('Twitter Type:', 'seo-ultimate'));

		

		return $fields;

	}

	

	function get_postmeta_jlsuggest_boxes($jls_boxes) {

		$this->jlsuggest_box_post_id = suwp::get_post_id();

		return parent::get_postmeta_jlsuggest_boxes($jls_boxes);

	}

	

	function get_input_element($type, $name, $value=null, $extra=false, $inputid=true) {

		

		$name_parts = explode('_', $name);

		if (isset($name_parts[1]) && is_numeric($post_id = $name_parts[1]))

			$this->jlsuggest_box_post_id = $post_id;

		else

			$this->jlsuggest_box_post_id = false;

		

		return parent::get_input_element($type, $name, $value, $extra, $inputid);

	}

	

	function get_jlsuggest_box($name, $value, $params='', $placeholder='') {

		

		if (empty($value) && $this->jlsuggest_box_post_id && $thumbnail_id = get_post_thumbnail_id($this->jlsuggest_box_post_id)) {

			$selected_post = get_post($thumbnail_id);

			$placeholder = sprintf(__('Featured Image: %s', 'seo-ultimate'), $selected_post->post_title);

		}

		

		return parent::get_jlsuggest_box($name, $value, $params, $placeholder);

	}

	

	function get_type_options() {

		return array(

			  'none' => __('None', 'seo-ultimate')

			, __('Internet', 'seo-ultimate') => array(

				  'article' => __('Article', 'seo-ultimate')

				, 'blog' => __('Blog', 'seo-ultimate')

				, 'profile' => __('Profile', 'seo-ultimate')

				, 'website' => __('Website', 'seo-ultimate')

			),__('Products', 'seo-ultimate') => array(

				  'book' => __('Book', 'seo-ultimate')

			),__('Music', 'seo-ultimate') => array(

				  'music.album' => __('Album', 'seo-ultimate')

				, 'music.playlist' => __('Playlist', 'seo-ultimate')

				, 'music.radio_station' => __('Radio Station', 'seo-ultimate')

				, 'music.song' => __('Song', 'seo-ultimate')

			),__('Videos', 'seo-ultimate') => array(

				  'video.movie' => __('Movie', 'seo-ultimate')

				, 'video.episode' => __('TV Episode', 'seo-ultimate')

				, 'video.tv_show' => __('TV Show', 'seo-ultimate')

				, 'video.other' => __('Video', 'seo-ultimate')

			)

		);

	}

	

	function get_twitter_type_options() {

		return array(

			  'summary' => __('Regular', 'seo-ultimate')

			, 'photo' => __('Photo', 'seo-ultimate')

		);

	}

	

	function sanitize_twitter_handle($value) {

		if (strpos($value, '/') === false) {

			$handle = ltrim($value, '@');

		} else {

			$url_parts = explode('/', $value);

			$handle = array_pop($url_parts);

		}

		

		$handle = sustr::preg_filter('a-zA-Z0-9_', $handle);

		$handle = trim($handle);

		

		if ($handle)

			$handle = "@$handle";

		

		return $handle;

	}

	

	function add_twitter_field( $contactmethods ) {

		$contactmethods['twitter'] = __('Twitter Handle', 'seo-ultimate');

		return $contactmethods;

	}

}



}

?>