357 lines
11 KiB
PHP
357 lines
11 KiB
PHP
<?php
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class S2_Frontend extends S2_Core {
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/**
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* Load all our strings
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*/
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public function load_strings() {
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// Translators: Link to login page
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$this->please_log_in = '<p class="s2_message">' . sprintf( __( 'To manage your subscription options please <a href="%1$s">login</a>.', 'subscribe2' ), get_option( 'siteurl' ) . '/wp-login.php' ) . '</p>';
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$profile = apply_filters( 's2_profile_link', get_option( 'siteurl' ) . '/wp-admin/admin.php?page=s2' );
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// Translators: Link to Profile page
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$this->profile = '<p class="s2_message">' . sprintf( __( 'You may manage your subscription options from your <a href="%1$s">profile</a>.', 'subscribe2' ), $profile ) . '</p>';
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if ( true === $this->s2_mu ) {
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global $blog_id;
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$user_ID = get_current_user_id();
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if ( ! is_user_member_of_blog( $user_ID, $blog_id ) ) {
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// if we are on multisite and the user is not a member of this blog change the link
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$mu_profile = apply_filters( 's2_mu_profile_link', get_option( 'siteurl' ) . '/wp-admin/?s2mu_subscribe=' . $blog_id );
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// Translators: Link to Profile page
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$this->profile = '<p class="s2_message">' . sprintf( __( '<a href="%1$s">Subscribe</a> to email notifications when this blog posts new content.', 'subscribe2' ), $mu_profile ) . '</p>';
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}
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}
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$this->confirmation_sent = '<p class="s2_message">' . __( 'A confirmation message is on its way!', 'subscribe2' ) . '</p>';
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$this->already_subscribed = '<p class="s2_error">' . __( 'That email address is already subscribed.', 'subscribe2' ) . '</p>';
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$this->not_subscribed = '<p class="s2_error">' . __( 'That email address is not subscribed.', 'subscribe2' ) . '</p>';
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$this->not_an_email = '<p class="s2_error">' . __( 'Sorry, but that does not look like an email address to me.', 'subscribe2' ) . '</p>';
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$this->barred_domain = '<p class="s2_error">' . __( 'Sorry, email addresses at that domain are currently barred due to spam, please use an alternative email address.', 'subscribe2' ) . '</p>';
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$this->error = '<p class="s2_error">' . __( 'Sorry, there seems to be an error on the server. Please try again later.', 'subscribe2' ) . '</p>';
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// confirmation messages
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$this->no_such_email = '<p class="s2_error">' . __( 'No such email address is registered.', 'subscribe2' ) . '</p>';
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$this->added = '<p class="s2_message">' . __( 'You have successfully subscribed!', 'subscribe2' ) . '</p>';
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$this->deleted = '<p class="s2_message">' . __( 'You have successfully unsubscribed.', 'subscribe2' ) . '</p>';
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$this->subscribe = __( 'subscribe', 'subscribe2' ); //ACTION replacement in subscribing confirmation email
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$this->unsubscribe = __( 'unsubscribe', 'subscribe2' ); //ACTION replacement in unsubscribing in confirmation email
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if ( isset( $_GET['s2_unsub'] ) && ! empty( $_GET['s2_unsub'] ) ) {
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$this->unsubscribe( $_GET['s2_unsub'] );
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}
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}
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/**
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* Process unsubscribe
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*
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* @param $email
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*/
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public function unsubscribe( $email ) {
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global $wpdb;
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$email = base64_decode( $email );
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if (! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
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return;
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}
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$count = $wpdb->delete( $wpdb->subscribe2,
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[
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'email' => $email
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]
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);
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if ( ! $count ) {
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wp_safe_redirect( home_url() );
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}
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}
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/**
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* Display form when deprecated <!--subscribe2--> is used
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*/
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public function filter( $content = '' ) {
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if ( '' === $content || ! strstr( $content, '<!--subscribe2-->' ) ) {
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return $content;
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}
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return preg_replace( '/(<p>)?(\n)*<!--subscribe2-->(\n)*(<\/p>)?/', do_shortcode( '[subscribe2]' ), $content );
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}
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/**
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* Overrides the default query when handling a (un)subscription confirmation
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* This is basically a trick: if the s2 variable is in the query string, just grab the first
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* static page and override it's contents later with title_filter()
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*/
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public function query_filter() {
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// don't interfere if we've already done our thing
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if ( 1 === $this->filtered ) {
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return;
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}
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global $wpdb;
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// brute force Simple Facebook Connect to bypass compatiblity issues
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$priority = has_filter( 'wp_head', 'sfc_base_meta' );
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if ( false !== $priority ) {
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remove_action( 'wp_head', 'sfc_base_meta', $priority );
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}
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if ( 0 !== $this->subscribe2_options['s2page'] ) {
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return array(
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'page_id' => $this->subscribe2_options['s2page'],
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);
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} else {
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$id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status='publish' LIMIT 1" );
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if ( $id ) {
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return array(
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'page_id' => $id,
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);
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} else {
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return array(
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'showposts' => 1,
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);
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}
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}
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}
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/**
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* Overrides the page title
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*/
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public function title_filter( $title ) {
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if ( in_the_loop() ) {
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$code = $_GET['s2'];
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$action = intval( substr( $code, 0, 1 ) );
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if ( 1 === $action ) {
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return __( 'Subscription Confirmation', 'subscribe2' );
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} else {
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return __( 'Unsubscription Confirmation', 'subscribe2' );
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}
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} else {
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return $title;
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}
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}
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/**
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* Confirm request from the link emailed to the user and email the admin
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*/
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public function confirm( $content = '' ) {
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global $wpdb;
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if ( 1 === $this->filtered && '' !== $this->message ) {
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return $this->message;
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} elseif ( 1 === $this->filtered ) {
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return $content;
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}
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$code = $_GET['s2'];
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$action = substr( $code, 0, 1 );
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$hash = substr( $code, 1, 32 );
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$id = intval( substr( $code, 33 ) );
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if ( $id ) {
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$this->email = $this->sanitize_email( $this->get_email( $id ) );
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if ( ! $this->email || wp_hash( $this->email ) !== $hash ) {
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return $this->no_such_email;
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}
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} else {
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return $this->no_such_email;
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}
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// get current status of email so messages are only sent once per emailed link
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$current = $this->is_public( $this->email );
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if ( '1' === $action ) {
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// make this subscription active
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$this->message = apply_filters( 's2_subscribe_confirmed', $this->added );
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if ( '1' !== $this->is_public( $this->email ) ) {
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$this->ip = esc_html( $this->get_remote_ip() );
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$this->toggle( $this->email );
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if ( 'subs' === $this->subscribe2_options['admin_email'] || 'both' === $this->subscribe2_options['admin_email'] ) {
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$this->admin_email( 'subscribe' );
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}
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}
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$this->filtered = 1;
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} elseif ( '0' === $action ) {
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// remove this public subscriber
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$this->message = apply_filters( 's2_unsubscribe_confirmed', $this->deleted );
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if ( '0' !== $this->is_public( $this->email ) ) {
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$this->delete( $this->email );
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if ( 'unsubs' === $this->subscribe2_options['admin_email'] || 'both' === $this->subscribe2_options['admin_email'] ) {
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$this->admin_email( 'unsubscribe' );
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}
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}
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$this->filtered = 1;
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}
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if ( '' !== $this->message ) {
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return $this->message;
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}
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}
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/**
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* Prepare and send emails to admins on new subscriptions and unsubsriptions
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*/
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public function admin_email( $action ) {
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if ( ! in_array( $action, array( 'subscribe', 'unsubscribe' ), true ) ) {
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return false;
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}
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( '' === get_option( 'blogname' ) ) ? $subject = '' : $subject = '[' . stripslashes( html_entity_decode( get_option( 'blogname' ), ENT_QUOTES ) ) . '] ';
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if ( 'subscribe' === $action ) {
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$subject .= __( 'New Subscription', 'subscribe2' );
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$message = $this->email . ' ' . __( 'subscribed to email notifications!', 'subscribe2' );
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} elseif ( 'unsubscribe' === $action ) {
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$subject .= __( 'New Unsubscription', 'subscribe2' );
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$message = $this->email . ' ' . __( 'unsubscribed from email notifications!', 'subscribe2' );
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}
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$subject = html_entity_decode( $subject, ENT_QUOTES );
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$role = array(
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'fields' => array(
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'user_email',
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),
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'role' => 'administrator',
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);
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$wp_user_query = get_users( $role );
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foreach ( $wp_user_query as $user ) {
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$recipients[] = $user->user_email;
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}
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$recipients = apply_filters( 's2_admin_email', $recipients, $action );
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$headers = $this->headers();
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// send individual emails so we don't reveal admin emails to each other
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foreach ( $recipients as $recipient ) {
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$status = wp_mail( $recipient, $subject, $message, $headers );
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}
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}
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/**
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* Add hook for Minimeta Widget plugin
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*/
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public function add_minimeta() {
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if ( 0 !== $this->subscribe2_options['s2page'] ) {
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echo '<li><a href="' . esc_url( get_permalink( $this->subscribe2_options['s2page'] ) ) . '">' . esc_html__( '[Un]Subscribe to Posts', 'subscribe2' ) . '</a></li>' . "\r\n";
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}
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}
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/**
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* Check email is not from a barred domain
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*/
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public function is_barred( $email = '' ) {
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if ( '' === $email ) {
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return false;
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}
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list( $user, $domain ) = explode( '@', $email, 2 );
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$domain = '@' . $domain;
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foreach ( preg_split( '/[\s,]+/', $this->subscribe2_options['barred'] ) as $barred_domain ) {
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if ( false !== strpos( $barred_domain, '!' ) ) {
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$url = explode( '.', str_replace( '!', '', $barred_domain ) );
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$count = count( $url );
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// make sure our exploded domain has at least 2 components e.g. yahoo.*
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if ( $count < 2 ) {
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continue;
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}
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for ( $i = 0; $i < $count; $i++ ) {
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if ( '*' === $url[ $i ] ) {
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unset( $url[ $i ] );
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}
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}
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$new_barred_domain = '@' . strtolower( trim( implode( '.', $url ) ) );
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if ( false !== strpos( $barred_domain, '*' ) ) {
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$new_barred_subdomain = '.' . strtolower( trim( implode( '.', $url ) ) );
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if ( false !== stripos( $domain, $new_barred_domain ) || false !== stripos( $domain, $new_barred_subdomain ) ) {
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return false;
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}
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} else {
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if ( false !== stripos( $domain, $new_barred_domain ) ) {
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return false;
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}
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}
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}
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if ( false === strpos( $barred_domain, '!' ) && false !== strpos( $barred_domain, '*' ) ) {
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// wildcard and explictly allowed checking
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$url = explode( '.', str_replace( '!', '', $barred_domain ) );
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$count = count( $url );
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// make sure our exploded domain has at least 2 components e.g. yahoo.*
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if ( $count < 2 ) {
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continue;
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}
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for ( $i = 0; $i < $count; $i++ ) {
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if ( '*' === $url[ $i ] ) {
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unset( $url[ $i ] );
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}
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}
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$new_barred_domain = '@' . strtolower( trim( implode( '.', $url ) ) );
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$new_barred_subdomain = '.' . strtolower( trim( implode( '.', $url ) ) );
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if ( false !== stripos( $domain, $new_barred_domain ) || false !== stripos( $domain, $new_barred_subdomain ) ) {
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return true;
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}
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} else {
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// direct domain string comparison
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$barred_domain = '@' . $barred_domain;
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if ( strtolower( $domain ) === strtolower( trim( $barred_domain ) ) ) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Enqueue javascript ip updater code
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*/
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public function js_ip_script() {
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wp_register_script( 's2_ip_updater', S2URL . 'include/s2-ip-updater' . $this->script_debug . '.js', array(), '1.1', true );
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wp_enqueue_script( 's2_ip_updater' );
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}
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/**
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* Add ip updater library to footer
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*/
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public function js_ip_library_script() {
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$args = array(
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'format' => 'jsonp',
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'callback' => 'getip',
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);
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wp_enqueue_script( 's2_ip_library', add_query_arg( $args, 'https://api.ipify.org' ), array(), S2VERSION, true );
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}
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/**
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* Reformat WordPress escaped link to IPify library
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*/
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public function tag_replace_ampersand( $tag ) {
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if ( strstr( $tag, 'ipify' ) !== false ) {
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$tag = str_replace( '&', '&', $tag );
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}
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return $tag;
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}
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/* ===== define some variables ===== */
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public $profile = '';
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/**
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* Create and display a dropdown list of pages
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*/
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public function pages_dropdown( $s2page, $name = 's2page' ) {
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//
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}
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}
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