122 lines
3.3 KiB
PHP
122 lines
3.3 KiB
PHP
<?php
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/**
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* Premium Content Login Button Child Block.
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*
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* @package automattic/jetpack
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*/
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namespace Automattic\Jetpack\Extensions\Premium_Content;
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use Automattic\Jetpack\Blocks;
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use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Abstract_Token_Subscription_Service;
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use Automattic\Jetpack\Status\Host;
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use Jetpack_Gutenberg;
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use Jetpack_Options;
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require_once dirname( __DIR__ ) . '/_inc/subscription-service/include.php';
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const LOGIN_BUTTON_NAME = 'premium-content/login-button';
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/**
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* Registers the block for use in Gutenberg
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* This is done via an action so that we can disable
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* registration if we need to.
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*/
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function register_login_button_block() {
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Blocks::jetpack_register_block(
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LOGIN_BUTTON_NAME,
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array(
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'render_callback' => __NAMESPACE__ . '\render_login_button_block',
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'render_email_callback' => __NAMESPACE__ . '\render_login_button_block_email',
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)
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);
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}
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add_action( 'init', __NAMESPACE__ . '\register_login_button_block' );
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/**
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* Returns current URL.
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*
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* @return string
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*/
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function get_current_url() {
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if ( ! isset( $_SERVER['HTTP_HOST'] ) || ! isset( $_SERVER['REQUEST_URI'] ) ) {
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return '';
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}
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return ( is_ssl() ? 'https://' : 'http://' ) . wp_unslash( $_SERVER['HTTP_HOST'] ) . wp_unslash( $_SERVER['REQUEST_URI'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
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}
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/**
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* Returns subscriber log in URL.
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*
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* @param string $redirect Path to redirect to on login.
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*
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* @return string
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*/
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function get_subscriber_login_url( $redirect ) {
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$redirect = ! empty( $redirect ) ? $redirect : get_site_url();
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if ( ( new Host() )->is_wpcom_simple() ) {
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// On WPCOM we will redirect immediately
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return wpcom_logmein_redirect_url( $redirect, false, null, 'link', get_current_blog_id() );
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}
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// On self-hosted we will save and hide the token
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$redirect_url = get_site_url() . '/wp-json/jetpack/v4/subscribers/auth';
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$redirect_url = add_query_arg( 'redirect_url', $redirect, $redirect_url );
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return add_query_arg(
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array(
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'site_id' => intval( Jetpack_Options::get_option( 'id' ) ),
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'redirect_url' => rawurlencode( $redirect_url ),
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),
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'https://subscribe.wordpress.com/memberships/jwt/'
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);
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}
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/**
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* Determines whether the current visitor is a logged in user or a subscriber.
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*
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* @return bool
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*/
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function is_subscriber_logged_in() {
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return is_user_logged_in() || Abstract_Token_Subscription_Service::has_token_from_cookie();
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}
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/**
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* Render callback.
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*
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* @param array $attributes Array containing the block attributes.
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* @param string $content String containing the block content.
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*
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* @return string
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*/
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function render_login_button_block( $attributes, $content ) {
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if ( ! pre_render_checks() ) {
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return '';
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}
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// The viewer is logged it, so they shouldn't see the login button.
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if ( is_subscriber_logged_in() ) {
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return '';
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}
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Jetpack_Gutenberg::load_styles_as_required( LOGIN_BUTTON_NAME );
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$redirect_url = get_current_url();
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$url = get_subscriber_login_url( $redirect_url );
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return preg_replace( '/(<a\b[^><]*)>/i', '$1 href="' . esc_url( $url ) . '">', $content );
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}
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/**
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* Render email callback.
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*
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* @return string
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*/
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function render_login_button_block_email() {
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// We don't want to render the login button in emails.
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// The subscriber is already considered logged in in emails.
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return '';
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}
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