Ticket #42134: 42134.patch

wp-admin/network/site-new.php

@@ -136 +136 @@
                         update_user_option( $user_id, 'primary_blog', $id, true );
                 }
 
-                wp_mail(
-                        get_site_option( 'admin_email' ),
-                        sprintf(
-                                /* translators: %s: network name */
-                                __( '[%s] New Site Created' ),
-                                get_network()->site_name
-                        ),
-                        sprintf(
-                                /* translators: 1: user login, 2: site url, 3: site name/title */
-                                __( 'New site created by %1$s
+                /* translators: %s: network name */
+                $new_site_subject = sprintf( __( '[%s] New Site Created' ), get_network()->site_name );
 
+                /* translators: 1: user login, 2: site url, 3: site name/title */
+                $new_site_message = sprintf(
+                        __( 'New site created by %1$s
 Address: %2$s
 Name: %3$s' ),
-                                $current_user->user_login,
-                                get_site_url( $id ),
-                                wp_unslash( $title )
-                        ),
-                        sprintf(
-                                'From: "%1$s" <%2$s>',
-                                _x( 'Site Admin', 'email "From" field' ),
-                                get_site_option( 'admin_email' )
-                        )
+                        $current_user->user_login,
+                        get_site_url( $id ),
+                        wp_unslash( $title )
+                );
+
+                $headers = sprintf(
+                        'From: "%1$s" <%2$s>',
+                        _x( 'Site Admin', 'email "From" field' ),
+                        get_site_option( 'admin_email' )
+                );
+
+                $new_site_created_email = array(
+                        'admin_email'   => get_site_option( 'admin_email' ),
+                        'subject'               => $new_site_subject,
+                        'message'               => $new_site_message,
+                        'headers'               => $headers
+                );
+
+                /**
+                 * Filters the contents of the email sent when a new site is created.
+                 *
+                 * @since 4.9
+                 *
+                 * @param array $new_site_created_email {
+                 *            Used to build wp_mail().
+                 *            @type string $admin_email Email of the newly created site user.
+                 *            @type string $subject The subject of the email.
+                 *            @type string $message The content of the email.
+                 *                The following strings have a special meaning and will get replaced dynamically:
+                 *                - ###SITENAME###    The name of the site.
+                 *                - ###SITEURL###     The URL to the site.
+                 *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
+                 *        }
+                 * @param int $user_id ID of the newly created user.
+                 *
+                 */
+
+                $new_site_created_email = apply_filters( 'new_site_created', $new_site_created_email, $user_id );
+
+                $new_site_created_email['message'] = str_replace( '###SITENAME###', wp_unslash( $title ), $new_site_created_email['message'] );
+                $new_site_created_email['message'] = str_replace( '###SITEURL###', get_site_url( $id ), $new_site_created_email['message'] );
+
+                wp_mail(
+                        $new_site_created_email['admin_email'],
+                        $new_site_created_email['subject'],
+                        $new_site_created_email['message'],
+                        $new_site_created_email['headers']
                 );
                 wpmu_welcome_notification( $id, $user_id, $password, $title, array( 'public' => 1 ) );
                 wp_redirect( add_query_arg( array( 'update' => 'added', 'id' => $id ), 'site-new.php' ) );