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Filename : publicize-jetpack.php
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<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
 * Publicize class.
 *
 * @package automattic/jetpack
 */

use Automattic\Jetpack\Connection\Tokens;
use Automattic\Jetpack\Redirect;

/**
 * Extend the base class with Jetpack-specific functionality.
 */
class Publicize extends Publicize_Base {

	const CONNECTION_REFRESH_WAIT_TRANSIENT = 'jetpack_publicize_connection_refresh_wait';

	/**
	 * Add hooks.
	 */
	public function __construct() {
		parent::__construct();

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

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

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

		add_action( 'wp_insert_post', array( $this, 'save_publicized' ), 11, 2 );

		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_action( 'connection_disconnected', array( $this, 'add_disconnect_notice' ) );

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

		add_action( 'updating_jetpack_version', array( $this, 'init_refresh_transient' ) );

		include_once __DIR__ . '/enhanced-open-graph.php';

		jetpack_require_lib( 'class.jetpack-keyring-service-helper' );
	}

	/**
	 * Add a notice when a connection has been disconnected.
	 */
	public function add_disconnect_notice() {
		add_action( 'admin_notices', array( $this, 'display_disconnected' ) );
	}

	/**
	 * Force user connection before showing the Publicize UI.
	 */
	public function force_user_connection() {
		global $current_user;

		$user_token        = ( new Tokens() )->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 );
	}

	/**
	 * Show a warning when Publicize does not have a connection.
	 */
	public 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 esc_url( $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.
	 *
	 * @param string    $service_name 'facebook', 'twitter', etc.
	 * @param string    $connection_id Connection ID.
	 * @param false|int $_blog_id The blog ID. Use false (default) for the current blog.
	 * @param false|int $_user_id The user ID. Use false (default) for the current user.
	 * @param bool      $force_delete Whether to skip permissions checks.
	 * @return false|void False on failure. Void on success.
	 */
	public function disconnect( $service_name, $connection_id, $_blog_id = false, $_user_id = false, $force_delete = false ) {
		return Jetpack_Keyring_Service_Helper::disconnect( $service_name, $connection_id, $_blog_id, $_user_id, $force_delete );
	}

	/**
	 * Set updated Publicize conntections.
	 *
	 * @param mixed $publicize_connections Updated connections.
	 * @return true
	 */
	public function receive_updated_publicize_connections( $publicize_connections ) {
		Jetpack_Options::update_option( 'publicize_connections', $publicize_connections );

		return true;
	}

	/**
	 * Add method to update Publicize connections.
	 *
	 * @param array $methods Array of registered methods.
	 * @return array
	 */
	public function register_update_publicize_connections_xmlrpc_method( $methods ) {
		return array_merge(
			$methods,
			array(
				'jetpack.updatePublicizeConnections' => array( $this, 'receive_updated_publicize_connections' ),
			)
		);
	}

	/**
	 * Get a list of all connections.
	 *
	 * @return array
	 */
	public function get_all_connections() {
		$this->refresh_connections();
		$connections = Jetpack_Options::get_option( 'publicize_connections' );
		if ( isset( $connections['google_plus'] ) ) {
			unset( $connections['google_plus'] );
		}
		return $connections;
	}

	/**
	 * Get connections for a specific service.
	 *
	 * @param string    $service_name 'facebook', 'twitter', etc.
	 * @param false|int $_blog_id The blog ID. Use false (default) for the current blog.
	 * @param false|int $_user_id The user ID. Use false (default) for the current user.
	 * @return false|object[]|array[]
	 */
	public function get_connections( $service_name, $_blog_id = false, $_user_id = false ) {
		if ( false === $_user_id ) {
			$_user_id = $this->user_id();
		}

		$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 ( $this->is_global_connection( $connection ) || $_user_id === (int) $connection['connection_data']['user_id'] ) {
						$connections_to_return[ $id ] = $connection;
					}
				}
			}

			return $connections_to_return;
		}

		return false;
	}

	/**
	 * Get all connections for a specific user.
	 *
	 * @return array|false
	 */
	public 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 = (int) $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;
	}

	/**
	 * Get the ID of a connection.
	 *
	 * @param array $connection The connection.
	 * @return string
	 */
	public function get_connection_id( $connection ) {
		return $connection['connection_data']['id'];
	}

	/**
	 * Get the unique ID of a connection.
	 *
	 * @param array $connection The connection.
	 * @return string
	 */
	public function get_connection_unique_id( $connection ) {
		return $connection['connection_data']['token_id'];
	}

	/**
	 * Get the meta of a connection.
	 *
	 * @param array $connection The connection.
	 * @return array
	 */
	public function get_connection_meta( $connection ) {
		$connection['user_id'] = $connection['connection_data']['user_id']; // Allows for shared connections.
		return $connection;
	}

	/**
	 * Show error on settings page if applicable.
	 */
	public function admin_page_load() {
		$action = isset( $_GET['action'] ) ? sanitize_text_field( wp_unslash( $_GET['action'] ) ) : null; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

		if ( 'error' === $action ) {
			add_action( 'pre_admin_screen_sharing', array( $this, 'display_connection_error' ), 9 );
		}
	}

	/**
	 * Display an error message.
	 */
	public function display_connection_error() {
		$code = false;
		// phpcs:disable WordPress.Security.NonceVerification.Recommended
		$service         = isset( $_GET['service'] ) ? sanitize_text_field( wp_unslash( $_GET['service'] ) ) : null;
		$publicize_error = isset( $_GET['publicize_error'] ) ? sanitize_text_field( wp_unslash( $_GET['publicize_error'] ) ) : null;
		// phpcs:enable WordPress.Security.NonceVerification.Recommended

		if ( $service ) {
			/* translators: %s is the name of the Publicize service (e.g. Facebook, Twitter) */
			$error = sprintf( __( 'There was a problem connecting to %s to create an authorized connection. Please try again in a moment.', 'jetpack' ), self::get_service_label( $service ) );
		} else {
			if ( $publicize_error ) {
				$code = strtolower( $publicize_error );
				switch ( $code ) {
					case '400':
						$error = __( 'An invalid request was made. This normally means that something intercepted or corrupted the request from your server to the Jetpack Server. Try again and see if it works this time.', 'jetpack' );
						break;
					case 'secret_mismatch':
						$error = __( 'We could not verify that your server is making an authorized request. Please try again, and make sure there is nothing interfering with requests from your server to the Jetpack Server.', 'jetpack' );
						break;
					case 'empty_blog_id':
						$error = __( 'No blog_id was included in your request. Please try disconnecting Jetpack from WordPress.com and then reconnecting it. Once you have done that, try connecting Publicize again.', 'jetpack' );
						break;
					case 'empty_state':
						/* translators: %s is the URL of the Jetpack admin page */
						$error = sprintf( __( 'No user information was included in your request. Please make sure that your user account has connected to Jetpack. Connect your user account by going to the <a href="%s">Jetpack page</a> within wp-admin.', 'jetpack' ), Jetpack::admin_url() );
						break;
					default:
						$error = __( 'Something which should never happen, happened. Sorry about that. If you try again, maybe it will work.', 'jetpack' );
						break;
				}
			} else {
				$error = __( 'There was a problem connecting with Publicize. Please try again in a moment.', 'jetpack' );
			}
		}
		// Using the same formatting/style as Jetpack::admin_notices() error.
		?>
		<div id="message" class="jetpack-message jetpack-err">
			<div class="squeezer">
				<h2>
					<?php
						echo wp_kses(
							$error,
							array(
								'a'      => array(
									'href' => true,
								),
								'code'   => true,
								'strong' => true,
								'br'     => true,
								'b'      => true,
							)
						);
					?>
				</h2>
				<?php if ( $code ) : ?>
					<p>
					<?php
					printf(
						/* translators: %s is the name of the error */
						esc_html__( 'Error code: %s', 'jetpack' ),
						esc_html( stripslashes( $code ) )
					);
					?>
					</p>
				<?php endif; ?>
			</div>
		</div>
		<?php
	}

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

	/**
	 * If applicable, globalize a connection.
	 *
	 * @param string $connection_id Connection ID.
	 */
	public function globalization( $connection_id ) {
		if ( 'on' === $_REQUEST['global'] ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- nonce check happens earlier in the process before we get here
			if ( ! current_user_can( $this->GLOBAL_CAP ) ) { // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
				return;
			}

			$this->globalize_connection( $connection_id );
		}
	}

	/**
	 * Globalize a connection.
	 *
	 * @param string $connection_id Connection ID.
	 */
	public function globalize_connection( $connection_id ) {
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.globalizePublicizeConnection', $connection_id, 'globalize' );

		if ( ! $xml->isError() ) {
			$response = $xml->getResponse();
			$this->receive_updated_publicize_connections( $response );
		}
	}

	/**
	 * Unglobalize a connection.
	 *
	 * @param string $connection_id Connection ID.
	 */
	public function unglobalize_connection( $connection_id ) {
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.globalizePublicizeConnection', $connection_id, 'unglobalize' );

		if ( ! $xml->isError() ) {
			$response = $xml->getResponse();
			$this->receive_updated_publicize_connections( $response );
		}
	}

	/**
	 * As Jetpack updates set the refresh transient to a random amount
	 * in order to spread out updates to the connection data.
	 *
	 * @param string $version The Jetpack version being updated to.
	 */
	public function init_refresh_transient( $version ) {
		if ( version_compare( $version, '10.2.1', '>=' ) && ! get_transient( self::CONNECTION_REFRESH_WAIT_TRANSIENT ) ) {
			$this->set_refresh_wait_transient( wp_rand( 10, HOUR_IN_SECONDS * 24 ) );
		}
	}

	/**
	 * Grabs a fresh copy of the publicize connections data.
	 * Only refreshes once every 12 hours or retries after an hour with an error.
	 */
	public function refresh_connections() {
		if ( get_transient( self::CONNECTION_REFRESH_WAIT_TRANSIENT ) ) {
			return;
		}
		$xml = new Jetpack_IXR_Client();
		$xml->query( 'jetpack.fetchPublicizeConnections' );
		$wait_time = HOUR_IN_SECONDS * 24;

		if ( ! $xml->isError() ) {
			$response = $xml->getResponse();
			$this->receive_updated_publicize_connections( $response );
		} else {
			// Retry a bit quicker, but still wait.
			$wait_time = HOUR_IN_SECONDS;
		}

		$this->set_refresh_wait_transient( $wait_time );
	}

	/**
	 * Sets the transient to expire at the specified time in seconds.
	 * This prevents us from attempting to refresh the data too often.
	 *
	 * @param int $wait_time The number of seconds before the transient should expire.
	 */
	public function set_refresh_wait_transient( $wait_time ) {
		set_transient( self::CONNECTION_REFRESH_WAIT_TRANSIENT, microtime( true ), $wait_time );
	}

	/**
	 * Get the Publicize connect URL from Keyring.
	 *
	 * @param string $service_name Name of the service to get connect URL for.
	 * @param string $for What the URL is for. Default 'publicize'.
	 * @return string
	 */
	public function connect_url( $service_name, $for = 'publicize' ) {
		return Jetpack_Keyring_Service_Helper::connect_url( $service_name, $for );
	}

	/**
	 * Get the Publicize refresh URL from Keyring.
	 *
	 * @param string $service_name Name of the service to get refresh URL for.
	 * @param string $for What the URL is for. Default 'publicize'.
	 * @return string
	 */
	public function refresh_url( $service_name, $for = 'publicize' ) {
		return Jetpack_Keyring_Service_Helper::refresh_url( $service_name, $for );
	}

	/**
	 * Get the Publicize disconnect URL from Keyring.
	 *
	 * @param string $service_name Name of the service to get disconnect URL for.
	 * @param mixed  $id ID of the conenction to disconnect.
	 * @return string
	 */
	public function disconnect_url( $service_name, $id ) {
		return Jetpack_Keyring_Service_Helper::disconnect_url( $service_name, $id );
	}

	/**
	 * Get social networks, either all available or only those that the site is connected to.
	 *
	 * @since 2.0.0
	 * @since 6.6.0 Removed Path. Service closed October 2018.
	 *
	 * @param string    $filter Select the list of services that will be returned. Defaults to 'all', accepts 'connected'.
	 * @param false|int $_blog_id Get services for a specific blog by ID, or set to false for current blog. Default false.
	 * @param false|int $_user_id Get services for a specific user by ID, or set to false for current user. Default false.
	 * @return array List of social networks.
	 */
	public function get_services( $filter = 'all', $_blog_id = false, $_user_id = false ) {
		$services = array(
			'facebook' => array(),
			'twitter'  => array(),
			'linkedin' => array(),
			'tumblr'   => array(),
		);

		if ( 'all' === $filter ) {
			return $services;
		}

		$connected_services = array();
		foreach ( $services as $service_name => $empty ) {
			$connections = $this->get_connections( $service_name, $_blog_id, $_user_id );
			if ( $connections ) {
				$connected_services[ $service_name ] = $connections;
			}
		}
		return $connected_services;
	}

	/**
	 * Get a specific connection. Stub.
	 *
	 * @param string    $service_name 'facebook', 'twitter', etc.
	 * @param string    $connection_id Connection ID.
	 * @param false|int $_blog_id The blog ID. Use false (default) for the current blog.
	 * @param false|int $_user_id The user ID. Use false (default) for the current user.
	 * @return void
	 */
	public function get_connection( $service_name, $connection_id, $_blog_id = false, $_user_id = false ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
		// Stub.
	}

	/**
	 * Flag a post for Publicize after publishing.
	 *
	 * @param string  $new_status New status of the post.
	 * @param string  $old_status Old status of the post.
	 * @param WP_Post $post Post object.
	 */
	public 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 ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
			}
		}
	}

	/**
	 * Test a connection.
	 *
	 * @param string $service_name Name of the service.
	 * @param array  $connection Connection to be tested.
	 */
	public function test_connection( $service_name, $connection ) {
		$id = $this->get_connection_id( $connection );

		$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 ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
		if ( $user_can_refresh ) {
			/* translators: %s is the name of a social media service */
			$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,
			'refresh_url'      => $refresh_url,
		);

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

	/**
	 * Checks if post has already been shared by Publicize in the past.
	 *
	 * Jetpack uses two methods:
	 * 1. A POST_DONE . 'all' postmeta flag, or
	 * 2. if the post has already been published.
	 *
	 * @since 6.7.0
	 *
	 * @param integer $post_id Optional. Post ID to query connection status for: will use current post if missing.
	 *
	 * @return bool True if post has already been shared by Publicize, false otherwise.
	 */
	public function post_is_done_sharing( $post_id = null ) {
		// Defaults to current post if $post_id is null.
		$post = get_post( $post_id );
		if ( $post === null ) {
			return false;
		}

		return 'publish' === $post->post_status || get_post_meta( $post->ID, $this->POST_DONE . 'all', true ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
	}

	/**
	 * Save a flag locally to indicate that this post has already been Publicized via the selected
	 * connections.
	 *
	 * @param int      $post_ID Post ID.
	 * @param \WP_Post $post Post object.
	 */
	public function save_publicized( $post_ID, $post = null ) {
		if ( $post === null ) {
			return;
		}
		// Only do this when a post transitions to being published.
		// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
		if ( get_post_meta( $post->ID, $this->PENDING ) && $this->post_type_is_publicizeable( $post->post_type ) ) {
			delete_post_meta( $post->ID, $this->PENDING );
			update_post_meta( $post->ID, $this->POST_DONE . 'all', true );
		}
		// phpcs:enable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
	}

	/**
	 * Set post flags for Publicize.
	 *
	 * @param array    $flags List of flags.
	 * @param \WP_Post $post Post object.
	 * @return array
	 */
	public 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;
	}

	/**
	 * Render Facebook options.
	 */
	public function options_page_facebook() {
		// Nonce check.
		check_admin_referer( 'options_page_facebook_' . $_REQUEST['connection'] );

		$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 );

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

		$page_selected = false;
		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 === (int) $connection['connection_data']['meta']['facebook_page'] ) {
						$found = true;
						break;
					}
				}
			}

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

		?>

		<div id="thickbox-content">
			<?php
			ob_start();
			Publicize_UI::connected_notice( 'Facebook' );
			$update_notice = ob_get_clean();

			if ( ! empty( $update_notice ) ) {
				echo wp_kses_post( $update_notice );
			}
			$page_info_message = sprintf(
				wp_kses(
					/* translators: %s is the link to the support page about using Facebook with Publicize */
					__( 'Facebook supports Publicize connections to Facebook Pages, but not to Facebook Profiles. <a href="%s">Learn More about Publicize for Facebook</a>', 'jetpack' ),
					array( 'a' => array( 'href' ) )
				),
				esc_url( Redirect::get_url( 'jetpack-support-publicize-facebook' ) )
			);

			if ( $pages ) :
				?>
				<p>
					<?php
						echo wp_kses(
							__( 'Publicize to my <strong>Facebook Page</strong>:', 'jetpack' ),
							array( 'strong' )
						);
					?>
				</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 && (int) $page_selected === (int) $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 ) || ( count( $pages ) - 1 === $i ) ) : ?>
							</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 esc_attr( wp_create_nonce( 'save_fb_token_' . $_REQUEST['connection'] ) ); ?>"/>
				</p><br/>
				<?php // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
				<p><?php echo $page_info_message; ?></p>
			<?php else : ?>
				<div>
					<?php // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
					<p><?php echo $page_info_message; ?></p>
					<p>
						<?php
							echo wp_kses(
								sprintf(
									/* translators: %1$s is the link to Facebook documentation to create a page, %2$s is the target of the link */
									__( '<a class="button" href="%1$s" target="%2$s">Create a Facebook page</a> to get started.', 'jetpack' ),
									'https://www.facebook.com/pages/creation/',
									'_blank noopener noreferrer'
								),
								array( 'a' => array( 'class', 'href', 'target' ) )
							);
						?>
					</p>
				</div>
			<?php endif; ?>
		</div>
		<?php
	}

	/**
	 * Save Facebook options.
	 */
	public 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' );
		}

		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 );
	}

	/**
	 * Render Tumblr options.
	 */
	public 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 wp_kses_post( $update_notice );
			}
			?>

			<p><?php echo wp_kses( __( 'Publicize to my <strong>Tumblr blog</strong>:', 'jetpack' ), array( 'strong' ) ); ?></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 esc_attr( wp_create_nonce( 'save_tumblr_blog_' . $_REQUEST['connection'] ) ); ?>"/>
			</p> <br/>
		</div>

		<?php
	}

	/**
	 * Get the hostname from a URL.
	 *
	 * @param string $url The URL to extract the hostname from.
	 * @return string|false|null
	 */
	public function get_basehostname( $url ) {
		return wp_parse_url( $url, PHP_URL_HOST );
	}

	/**
	 * Save Tumblr options.
	 */
	public 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 );

	}

	/**
	 * Set remote Publicize options.
	 *
	 * @param int   $id Connection ID.
	 * @param array $options Options to set.
	 */
	public function set_remote_publicize_options( $id, $options ) {
		$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( $id );
		}
	}

	/**
	 * Render the options page for Twitter.
	 */
	public function options_page_twitter() {
		Publicize_UI::options_page_other( 'twitter' );
	}

	/**
	 * Render the options page for LinkedIn.
	 */
	public function options_page_linkedin() {
		Publicize_UI::options_page_other( 'linkedin' );
	}

	/**
	 * Save the options page for Twitter.
	 */
	public function options_save_twitter() {
		$this->options_save_other( 'twitter' );
	}

	/**
	 * Save the options page for LinkedIn.
	 */
	public function options_save_linkedin() {
		$this->options_save_other( 'linkedin' );
	}

	/**
	 * Save the options page for a service.
	 *
	 * @param string $service_name Name of the service to save options for.
	 */
	public function options_save_other( $service_name ) {
		// Nonce check.
		check_admin_referer( 'save_' . $service_name . '_token_' . $_REQUEST['connection'] );

		$this->globalization( $_REQUEST['connection'] );
	}

	/**
	 * If there's only one shared connection to Twitter set it as twitter:site tag.
	 *
	 * @param string $tag Tag.
	 */
	public 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 ) {
			$connection_meta = $this->get_connection_meta( $connection );
			if ( $this->is_global_connection( $connection_meta ) ) {
				// If the connection is shared.
				return $this->get_display_name( 'twitter', $connection );
			}
		}

		return $tag;
	}

	/**
	 * Save the Publicized Twitter account when publishing a post.
	 *
	 * @param bool   $submit_post Should the post be publicized.
	 * @param int    $post_id Post ID.
	 * @param string $service_name Service name.
	 * @param array  $connection Array of connection details.
	 */
	public 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 ) || ! $this->is_global_connection( $connection_meta ) ) {
				update_post_meta( $post_id, '_publicize_twitter_user', $this->get_display_name( 'twitter', $connection ) );
			}
		}
	}

	/**
	 * Get the Twitter username.
	 *
	 * @param string $account Twitter username.
	 * @param int    $post_id ID of the post.
	 * @return string
	 */
	public 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
	 *
	 * @param bool   $submit_post Should the post be publicized.
	 * @param int    $post_id Post ID.
	 * @param string $service_name Service name.
	 * @param array  $connection Array of connection details.
	 */
	public 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 ) || ! $this->is_global_connection( $connection_meta ) ) {
				$profile_link = $this->get_profile_link( 'facebook', $connection );

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