Publicize

Complexity

Total Complexity

121

Size/Duplication

Total Lines	695
Duplicated Lines	1.58 %

Coupling/Cohesion

Components	2
Dependencies	7

Importance

Changes

0

42 Methods

Rating	Name	Duplication	Size	Complexity
B	get_all_connections_for_user()	0	20	6
A	get_connection_id()	0	3	1
A	__construct()	0	39	1
A	force_user_connection()	0	18	3
A	admin_page_warning()	0	32	2
A	disconnect()	11	11	2
A	receive_updated_publicize_connections()	0	5	1
A	register_update_publicize_connections_xmlrpc_method()	0	5	1
A	get_all_connections()	0	3	1
B	get_connections()	0	17	7
A	get_connection_meta()	0	4	1
A	display_disconnected()	0	5	1
A	globalization()	0	18	4
A	connect_url()	0	3	1
A	refresh_url()	0	3	1
A	disconnect_url()	0	3	1
A	get_services()	0	23	4
A	get_connection()	0	3	1
A	flag_post_for_publicize()	0	25	5
A	test_connection()	0	32	3
A	save_publicized()	0	21	5
A	set_post_flags()	0	20	4
D	options_page_facebook()	0	91	17
A	options_save_facebook()	0	22	4
B	options_page_tumblr()	0	73	9
A	get_basehostname()	0	3	1
A	options_save_tumblr()	0	8	1
A	set_remote_publicize_options()	0	11	2
A	options_page_twitter()	0	3	1
A	options_page_linkedin()	0	3	1
A	options_page_path()	0	3	1
A	options_page_google_plus()	0	3	1
A	options_save_twitter()	0	3	1
A	options_save_linkedin()	0	3	1
A	options_save_path()	0	3	1
A	options_save_google_plus()	0	3	1
A	options_save_other()	0	5	1
A	publicize_checkbox_default()	0	7	2
A	enhaced_twitter_cards_site_tag()	0	19	5
A	save_publicized_twitter_account()	0	9	5
A	get_publicized_twitter_account()	0	11	3
B	save_publicized_facebook_account()	0	13	7

<?php

require_once dirname( __FILE__ ) . '/../keyring/keyring-jetpack.php';

class Publicize extends Publicize_Base {

	function __construct() {
		parent::__construct();

		add_filter( 'jetpack_xmlrpc_methods', array( $this, 'register_update_publicize_connections_xmlrpc_method' ) );

		// moved to Keyring module
		//add_action( 'load-settings_page_sharing', array( $this, 'admin_page_load' ), 9 );

		add_action( 'wp_ajax_publicize_tumblr_options_page', array( $this, 'options_page_tumblr' ) );
		add_action( 'wp_ajax_publicize_facebook_options_page', array( $this, 'options_page_facebook' ) );
		add_action( 'wp_ajax_publicize_twitter_options_page', array( $this, 'options_page_twitter' ) );
		add_action( 'wp_ajax_publicize_linkedin_options_page', array( $this, 'options_page_linkedin' ) );
		add_action( 'wp_ajax_publicize_path_options_page', array( $this, 'options_page_path' ) );
		add_action( 'wp_ajax_publicize_google_plus_options_page', array( $this, 'options_page_google_plus' ) );

		add_action( 'wp_ajax_publicize_tumblr_options_save', array( $this, 'options_save_tumblr' ) );
		add_action( 'wp_ajax_publicize_facebook_options_save', array( $this, 'options_save_facebook' ) );
		add_action( 'wp_ajax_publicize_twitter_options_save', array( $this, 'options_save_twitter' ) );
		add_action( 'wp_ajax_publicize_linkedin_options_save', array( $this, 'options_save_linkedin' ) );
		add_action( 'wp_ajax_publicize_path_options_save', array( $this, 'options_save_path' ) );
		add_action( 'wp_ajax_publicize_google_plus_options_save', array( $this, 'options_save_google_plus' ) );

		add_action( 'load-settings_page_sharing', array( $this, 'force_user_connection' ) );

		add_filter( 'publicize_checkbox_default', array( $this, 'publicize_checkbox_default' ), 10, 4 );

		add_filter( 'jetpack_published_post_flags', array( $this, 'set_post_flags' ), 10, 2 );

		add_action( 'wp_insert_post', array( $this, 'save_publicized' ), 11, 3 );

		add_filter( 'jetpack_twitter_cards_site_tag', array( $this, 'enhaced_twitter_cards_site_tag' ) );

		add_action( 'publicize_save_meta', array( $this, 'save_publicized_twitter_account' ), 10, 4 );
		add_action( 'publicize_save_meta', array( $this, 'save_publicized_facebook_account' ), 10, 4 );

		add_filter( 'jetpack_sharing_twitter_via', array( $this, 'get_publicized_twitter_account' ), 10, 2 );

		include_once( JETPACK__PLUGIN_DIR . 'modules/publicize/enhanced-open-graph.php' );
	}

	function force_user_connection() {
		global $current_user;
		$user_token        = Jetpack_Data::get_access_token( $current_user->ID );
		$is_user_connected = $user_token && ! is_wp_error( $user_token );

		// If the user is already connected via Jetpack, then we're good
		if ( $is_user_connected ) {
			return;
		}

		// If they're not connected, then remove the Publicize UI and tell them they need to connect first
		global $publicize_ui;
		remove_action( 'pre_admin_screen_sharing', array( $publicize_ui, 'admin_page' ) );

		// Do we really need `admin_styles`? With the new admin UI, it's breaking some bits.
		// Jetpack::init()->admin_styles();
		add_action( 'pre_admin_screen_sharing', array( $this, 'admin_page_warning' ), 1 );
	}

	function admin_page_warning() {
		$jetpack   = Jetpack::init();
		$blog_name = get_bloginfo( 'blogname' );
		if ( empty( $blog_name ) ) {
			$blog_name = home_url( '/' );
		}

		?>
		<div id="message" class="updated jetpack-message jp-connect">
			<div class="jetpack-wrap-container">
				<div class="jetpack-text-container">
					<p><?php printf(
							/* translators: %s is the name of the blog */
							esc_html( wptexturize( __( "To use Publicize, you'll need to link your %s account to your WordPress.com account using the link below.", 'jetpack' ) ) ),
							'<strong>' . esc_html( $blog_name ) . '</strong>'
						); ?></p>
					<p><?php echo esc_html( wptexturize( __( "If you don't have a WordPress.com account yet, you can sign up for free in just a few seconds.", 'jetpack' ) ) ); ?></p>
				</div>
				<div class="jetpack-install-container">
					<p class="submit"><a
							href="<?php echo $jetpack->build_connect_url( false, menu_page_url( 'sharing', false ) ); ?>"
							class="button-connector"
							id="wpcom-connect"><?php esc_html_e( 'Link account with WordPress.com', 'jetpack' ); ?></a>
					</p>
					<p class="jetpack-install-blurb">
						<?php jetpack_render_tos_blurb(); ?>
					</p>
				</div>
			</div>
		</div>
		<?php
	}

	/**
	 * Remove a Publicize connection
	 */
	function disconnect( $service_name, $connection_id, $_blog_id = false, $_user_id = false, $force_delete = false ) {
		Jetpack::load_xml_rpc_client();
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.deletePublicizeConnection', $connection_id );

		if ( ! $xml->isError() ) {
			Jetpack_Options::update_option( 'publicize_connections', $xml->getResponse() );
		} else {
			return false;
		}
	}

	function receive_updated_publicize_connections( $publicize_connections ) {
		Jetpack_Options::update_option( 'publicize_connections', $publicize_connections );

		return true;
	}

	function register_update_publicize_connections_xmlrpc_method( $methods ) {
		return array_merge( $methods, array(
			'jetpack.updatePublicizeConnections' => array( $this, 'receive_updated_publicize_connections' ),
		) );
	}

	function get_all_connections() {
		return Jetpack_Options::get_option( 'publicize_connections' );
	}

	function get_connections( $service_name, $_blog_id = false, $_user_id = false ) {
		$connections           = $this->get_all_connections();
		$connections_to_return = array();
		if ( ! empty( $connections ) && is_array( $connections ) ) {
			if ( ! empty( $connections[ $service_name ] ) ) {
				foreach ( $connections[ $service_name ] as $id => $connection ) {
					if ( 0 == $connection['connection_data']['user_id'] || $this->user_id() == $connection['connection_data']['user_id'] ) {
						$connections_to_return[ $id ] = $connection;
					}
				}
			}

			return $connections_to_return;
		}

		return false;
	}

	function get_all_connections_for_user() {
		$connections = $this->get_all_connections();

		$connections_to_return = array();
		if ( ! empty( $connections ) ) {
			foreach ( (array) $connections as $service_name => $connections_for_service ) {
				foreach ( $connections_for_service as $id => $connection ) {
					$user_id = intval( $connection['connection_data']['user_id'] );
					// phpcs:ignore WordPress.PHP.YodaConditions.NotYoda
					if ( $user_id === 0 || $this->user_id() === $user_id ) {
						$connections_to_return[ $service_name ][ $id ] = $connection;
					}
				}
			}

			return $connections_to_return;
		}

		return false;
	}

	function get_connection_id( $connection ) {
		return $connection['connection_data']['id'];
	}

	function get_connection_meta( $connection ) {
		$connection['user_id'] = $connection['connection_data']['user_id']; // Allows for shared connections
		return $connection;
	}

	// moved to Keyring module
	// function admin_age_load() {

	// moved to Keyring module
	// function display_connection_error() {


	function display_disconnected() {
		echo "<div class='updated'>\n";
		echo '<p>' . esc_html( __( 'That connection has been removed.', 'jetpack' ) ) . "</p>\n";
		echo "</div>\n\n";
	}

	function globalization() {
		if ( 'on' == $_REQUEST['global'] ) {
			$id = $_REQUEST['connection'];

			if ( ! current_user_can( $this->GLOBAL_CAP ) ) {
				return;
			}

			Jetpack::load_xml_rpc_client();
			$xml = new Jetpack_IXR_Client();
			$xml->query( 'jetpack.globalizePublicizeConnection', $id, 'globalize' );

			if ( ! $xml->isError() ) {
				$response = $xml->getResponse();
				Jetpack_Options::update_option( 'publicize_connections', $response );
			}
		}
	}


	// moved to Keyring module
	//function api_url( $service = false, $params = array() ) {

	function connect_url( $service_name ) {
		return Keyring::connect_url( $service_name );
	}

	function refresh_url( $service_name ) {
		return Keyring::refresh_url( $service_name );
	}

	function disconnect_url( $service_name, $id ) {
		return Keyring::disconnect_url( $service_name, $id );
	}

	/**
	 * Get social networks, either all available or only those that the site is connected to.
	 *
	 * @since 2.0
	 *
	 * @param string $filter Select the list of services that will be returned. Defaults to 'all', accepts 'connected'.
	 *
	 * @return array List of social networks.
	 */
	function get_services( $filter = 'all' ) {
		$services = array(
			'facebook'    => array(),
			'twitter'     => array(),
			'linkedin'    => array(),
			'tumblr'      => array(),
			'path'        => array(),
			'google_plus' => array(),
		);

		if ( 'all' == $filter ) {
			return $services;
		} else {
			$connected_services = array();
			foreach ( $services as $service => $empty ) {
				$connections = $this->get_connections( $service );
				if ( $connections ) {
					$connected_services[ $service ] = $connections;
				}
			}
			return $connected_services;
		}
	}

	function get_connection( $service, $id, $_blog_id = false, $_user_id = false ) {
		// Stub
	}

	function flag_post_for_publicize( $new_status, $old_status, $post ) {
		if ( ! $this->post_type_is_publicizeable( $post->post_type ) ) {
			return;
		}

		if ( 'publish' == $new_status && 'publish' != $old_status ) {
			/**
			 * Determines whether a post being published gets publicized.
			 *
			 * Side-note: Possibly our most alliterative filter name.
			 *
			 * @module publicize
			 *
			 * @since 4.1.0
			 *
			 * @param bool $should_publicize Should the post be publicized? Default to true.
			 * @param WP_POST $post Current Post object.
			 */
			$should_publicize = apply_filters( 'publicize_should_publicize_published_post', true, $post );

			if ( $should_publicize ) {
				update_post_meta( $post->ID, $this->PENDING, true );
			}
		}
	}

	function test_connection( $service_name, $connection ) {

		$id = $this->get_connection_id( $connection );

		Jetpack::load_xml_rpc_client();
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.testPublicizeConnection', $id );

		// Bail if all is well
		if ( ! $xml->isError() ) {
			return true;
		}

		$xml_response            = $xml->getResponse();
		$connection_test_message = $xml_response['faultString'];

		// Set up refresh if the user can
		$user_can_refresh = current_user_can( $this->GLOBAL_CAP );
		if ( $user_can_refresh ) {
			$nonce        = wp_create_nonce( "keyring-request-" . $service_name );

$nonce is not used, you could remove the assignment.

			$refresh_text = sprintf( _x( 'Refresh connection with %s', 'Refresh connection with {social media service}', 'jetpack' ), $this->get_service_label( $service_name ) );
			$refresh_url  = $this->refresh_url( $service_name );
		}

		$error_data = array(
			'user_can_refresh' => $user_can_refresh,
			'refresh_text'     => $refresh_text,

The variable $refresh_text does not seem to be defined for all execution paths leading up to this point.

			'refresh_url'      => $refresh_url

The variable $refresh_url does not seem to be defined for all execution paths leading up to this point.

		);

		return new WP_Error( 'pub_conn_test_failed', $connection_test_message, $error_data );
	}

	/**
	 * Save a flag locally to indicate that this post has already been Publicized via the selected
	 * connections.
	 */
	function save_publicized( $post_ID, $post = null, $update = null ) {
		if ( is_null( $post ) ) {
			return;
		}
		// Only do this when a post transitions to being published
		if ( get_post_meta( $post->ID, $this->PENDING ) && $this->post_type_is_publicizeable( $post->post_type ) ) {
			$connected_services = $this->get_all_connections();
			if ( ! empty( $connected_services ) ) {
				/**
				 * Fires when a post is saved that has is marked as pending publicizing
				 *
				 * @since 4.1.0
				 *
				 * @param int The post ID
				 */
				do_action_deprecated( 'jetpack_publicize_post', $post->ID, '4.8.0', 'jetpack_published_post_flags' );
			}
			delete_post_meta( $post->ID, $this->PENDING );
			update_post_meta( $post->ID, $this->POST_DONE . 'all', true );
		}
	}

	function set_post_flags( $flags, $post ) {
		$flags['publicize_post'] = false;
		if ( ! $this->post_type_is_publicizeable( $post->post_type ) ) {
			return $flags;
		}
		/** This filter is already documented in modules/publicize/publicize-jetpack.php */
		if ( ! apply_filters( 'publicize_should_publicize_published_post', true, $post ) ) {
			return $flags;
		}

		$connected_services = $this->get_all_connections();

		if ( empty( $connected_services ) ) {
			return $flags;
		}

		$flags['publicize_post'] = true;

		return $flags;
	}

	/**
	 * Options Code
	 */

	function options_page_facebook() {
		$connected_services = $this->get_all_connections();
		$connection         = $connected_services['facebook'][ $_REQUEST['connection'] ];
		$options_to_show    = ( ! empty( $connection['connection_data']['meta']['options_responses'] ) ? $connection['connection_data']['meta']['options_responses'] : false );

		// Nonce check
		check_admin_referer( 'options_page_facebook_' . $_REQUEST['connection'] );

		$pages = ( ! empty( $options_to_show[1]['data'] ) ? $options_to_show[1]['data'] : false );

		$page_selected   = false;

Equals sign not aligned correctly; expected 1 space but found 3 spaces

		if ( ! empty( $connection['connection_data']['meta']['facebook_page'] ) ) {
			$found = false;
			if ( $pages && isset( $pages->data ) && is_array( $pages->data )  ) {
				foreach ( $pages->data as $page ) {
					if ( $page->id == $connection['connection_data']['meta']['facebook_page'] ) {
						$found = true;
						break;
					}
				}
			}

			if ( $found ) {
				$page_selected   = $connection['connection_data']['meta']['facebook_page'];

Equals sign not aligned correctly; expected 1 space but found 3 spaces

			}
		}

		?>

		<div id="thickbox-content">

			<?php
			ob_start();
			Publicize_UI::connected_notice( 'Facebook' );
			$update_notice = ob_get_clean();

			if ( ! empty( $update_notice ) ) {
				echo $update_notice;
			}
			$page_info_message = sprintf(
				__( 'Facebook supports Publicize connections to Facebook Pages, but not to Facebook Profiles. <a href="%s">Learn More about Publicize for Facebook</a>', 'jetpack' ),
				'https://jetpack.com/support/publicize/facebook'
			);

			if ( $pages ) : ?>
				<p><?php _e( 'Publicize to my <strong>Facebook Page</strong>:', 'jetpack' ); ?></p>
				<table id="option-fb-fanpage">
					<tbody>

					<?php foreach ( $pages as $i => $page ) : ?>
						<?php if ( ! ( $i % 2 ) ) : ?>
							<tr>
						<?php endif; ?>
						<td class="radio"><input type="radio" name="option" data-type="page"
						                         id="<?php echo esc_attr( $page['id'] ) ?>"
						                         value="<?php echo esc_attr( $page['id'] ) ?>" <?php checked( $page_selected && $page_selected == $page['id'], true ); ?> />
						</td>
						<td class="thumbnail"><label for="<?php echo esc_attr( $page['id'] ) ?>"><img
									src="<?php echo esc_url( str_replace( '_s', '_q', $page['picture']['data']['url'] ) ) ?>"
									width="50" height="50"/></label></td>
						<td class="details">
							<label for="<?php echo esc_attr( $page['id'] ) ?>">
								<span class="name"><?php echo esc_html( $page['name'] ) ?></span><br/>
								<span class="category"><?php echo esc_html( $page['category'] ) ?></span>
							</label>
						</td>
						<?php if ( ( $i % 2 ) || ( $i == count( $pages ) - 1 ) ): ?>
							</tr>
						<?php endif; ?>
					<?php endforeach; ?>

					</tbody>
				</table>

				<?php Publicize_UI::global_checkbox( 'facebook', $_REQUEST['connection'] ); ?>
				<p style="text-align: center;">
					<input type="submit" value="<?php esc_attr_e( 'OK', 'jetpack' ) ?>"
					       class="button fb-options save-options" name="save"
					       data-connection="<?php echo esc_attr( $_REQUEST['connection'] ); ?>"
					       rel="<?php echo wp_create_nonce( 'save_fb_token_' . $_REQUEST['connection'] ) ?>"/>
				</p><br/>
				<p><?php echo $page_info_message; ?></p>
			<?php else: ?>
				<div>
					<p><?php echo $page_info_message; ?></p>
					<p><?php printf( __( '<a class="button" href="%s" target="%s">Create a Facebook page</a> to get started.', 'jetpack' ), 'https://www.facebook.com/pages/creation/', '_blank noopener noreferrer' ); ?></p>
				</div>
			<?php endif; ?>
		</div>
		<?php
	}

	function options_save_facebook() {
		// Nonce check
		check_admin_referer( 'save_fb_token_' . $_REQUEST['connection'] );

		// Check for a numeric page ID
		$page_id = $_POST['selected_id'];
		if ( ! ctype_digit( $page_id ) ) {
			die( 'Security check' );

The method options_save_facebook() contains an exit expression.

		}

		if ( 'page' != $_POST['type'] || ! isset( $_POST['selected_id'] ) ) {
			return;
		}

		// Publish to Page
		$options = array(
			'facebook_page'    => $page_id,
			'facebook_profile' => null
		);

		$this->set_remote_publicize_options( $_POST['connection'], $options );
	}

	function options_page_tumblr() {
		// Nonce check
		check_admin_referer( 'options_page_tumblr_' . $_REQUEST['connection'] );

		$connected_services = $this->get_all_connections();
		$connection         = $connected_services['tumblr'][ $_POST['connection'] ];
		$options_to_show    = $connection['connection_data']['meta']['options_responses'];
		$request            = $options_to_show[0];

		$blogs = $request['response']['user']['blogs'];

		$blog_selected = false;

		if ( ! empty( $connection['connection_data']['meta']['tumblr_base_hostname'] ) ) {
			foreach ( $blogs as $blog ) {
				if ( $connection['connection_data']['meta']['tumblr_base_hostname'] == $this->get_basehostname( $blog['url'] ) ) {
					$blog_selected = $connection['connection_data']['meta']['tumblr_base_hostname'];
					break;
				}
			}

		}

		// Use their Primary blog if they haven't selected one yet
		if ( ! $blog_selected ) {
			foreach ( $blogs as $blog ) {
				if ( $blog['primary'] ) {
					$blog_selected = $this->get_basehostname( $blog['url'] );
				}
			}
		} ?>

		<div id="thickbox-content">

			<?php
			ob_start();
			Publicize_UI::connected_notice( 'Tumblr' );
			$update_notice = ob_get_clean();

			if ( ! empty( $update_notice ) ) {
				echo $update_notice;
			}
			?>

			<p><?php _e( 'Publicize to my <strong>Tumblr blog</strong>:', 'jetpack' ); ?></p>

			<ul id="option-tumblr-blog">

				<?php
				foreach ( $blogs as $blog ) {
					$url = $this->get_basehostname( $blog['url'] ); ?>
					<li>
						<input type="radio" name="option" data-type="blog" id="<?php echo esc_attr( $url ) ?>"
						       value="<?php echo esc_attr( $url ) ?>" <?php checked( $blog_selected == $url, true ); ?> />
						<label for="<?php echo esc_attr( $url ) ?>"><span
								class="name"><?php echo esc_html( $blog['title'] ) ?></span></label>
					</li>
				<?php } ?>

			</ul>

			<?php Publicize_UI::global_checkbox( 'tumblr', $_REQUEST['connection'] ); ?>

			<p style="text-align: center;">
				<input type="submit" value="<?php esc_attr_e( 'OK', 'jetpack' ) ?>"
				       class="button tumblr-options save-options" name="save"
				       data-connection="<?php echo esc_attr( $_REQUEST['connection'] ); ?>"
				       rel="<?php echo wp_create_nonce( 'save_tumblr_blog_' . $_REQUEST['connection'] ) ?>"/>
			</p> <br/>
		</div>

		<?php
	}

	function get_basehostname( $url ) {
		return parse_url( $url, PHP_URL_HOST );
	}

	function options_save_tumblr() {
		// Nonce check
		check_admin_referer( 'save_tumblr_blog_' . $_REQUEST['connection'] );
		$options = array( 'tumblr_base_hostname' => $_POST['selected_id'] );

		$this->set_remote_publicize_options( $_POST['connection'], $options );

	}

	function set_remote_publicize_options( $id, $options ) {
		Jetpack::load_xml_rpc_client();
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.setPublicizeOptions', $id, $options );

		if ( ! $xml->isError() ) {
			$response = $xml->getResponse();
			Jetpack_Options::update_option( 'publicize_connections', $response );
			$this->globalization();
		}
	}

	function options_page_twitter() {
		Publicize_UI::options_page_other( 'twitter' );
	}

	function options_page_linkedin() {
		Publicize_UI::options_page_other( 'linkedin' );
	}

	function options_page_path() {
		Publicize_UI::options_page_other( 'path' );
	}

	function options_page_google_plus() {
		Publicize_UI::options_page_other( 'google_plus' );
	}

	function options_save_twitter() {
		$this->options_save_other( 'twitter' );
	}

	function options_save_linkedin() {
		$this->options_save_other( 'linkedin' );
	}

	function options_save_path() {
		$this->options_save_other( 'path' );
	}

	function options_save_google_plus() {
		$this->options_save_other( 'google_plus' );
	}

	function options_save_other( $service_name ) {
		// Nonce check
		check_admin_referer( 'save_' . $service_name . '_token_' . $_REQUEST['connection'] );
		$this->globalization();
	}

	/**
	 * Already-published posts should not be Publicized by default. This filter sets checked to
	 * false if a post has already been published.
	 */
	function publicize_checkbox_default( $checked, $post_id, $name, $connection ) {
		if ( 'publish' == get_post_status( $post_id ) ) {
			return false;
		}

		return $checked;
	}

	/**
	 * If there's only one shared connection to Twitter set it as twitter:site tag.
	 */
	function enhaced_twitter_cards_site_tag( $tag ) {
		$custom_site_tag = get_option( 'jetpack-twitter-cards-site-tag' );
		if ( ! empty( $custom_site_tag ) ) {
			return $tag;
		}
		if ( ! $this->is_enabled( 'twitter' ) ) {
			return $tag;
		}
		$connections = $this->get_connections( 'twitter' );
		foreach ( $connections as $connection ) {

The expression $connections of type array|false is not guaranteed to be traversable. How about adding an additional type check?

			$connection_meta = $this->get_connection_meta( $connection );
			if ( 0 == $connection_meta['connection_data']['user_id'] ) {
				// If the connection is shared
				return $this->get_display_name( 'twitter', $connection );
			}
		}

		return $tag;
	}

	function save_publicized_twitter_account( $submit_post, $post_id, $service_name, $connection ) {
		if ( 'twitter' == $service_name && $submit_post ) {
			$connection_meta        = $this->get_connection_meta( $connection );
			$publicize_twitter_user = get_post_meta( $post_id, '_publicize_twitter_user' );
			if ( empty( $publicize_twitter_user ) || 0 != $connection_meta['connection_data']['user_id'] ) {
				update_post_meta( $post_id, '_publicize_twitter_user', $this->get_display_name( 'twitter', $connection ) );
			}
		}
	}

	function get_publicized_twitter_account( $account, $post_id ) {
		if ( ! empty( $account ) ) {
			return $account;
		}
		$account = get_post_meta( $post_id, '_publicize_twitter_user', true );
		if ( ! empty( $account ) ) {
			return $account;
		}

		return '';
	}

	/**
	 * Save the Publicized Facebook account when publishing a post
	 * Use only Personal accounts, not Facebook Pages
	 */
	function save_publicized_facebook_account( $submit_post, $post_id, $service_name, $connection ) {
		$connection_meta = $this->get_connection_meta( $connection );
		if ( 'facebook' == $service_name && isset( $connection_meta['connection_data']['meta']['facebook_profile'] ) && $submit_post ) {
			$publicize_facebook_user = get_post_meta( $post_id, '_publicize_facebook_user' );
			if ( empty( $publicize_facebook_user ) || 0 != $connection_meta['connection_data']['user_id'] ) {
				$profile_link = $this->get_profile_link( 'facebook', $connection );

				if ( false !== $profile_link ) {
					update_post_meta( $post_id, '_publicize_facebook_user', $profile_link );
				}
			}
		}
	}
}