Ticket #42135: 42135.2.patch

src/wp-admin/network/site-new.php

@@ -142 +142 @@
                         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$s
-
-Address: %2$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' )
-                        )
-                );
+        wpmu_new_site_notification( $id, $current_user->user_login, $title );
                 wpmu_welcome_notification( $id, $user_id, $password, $title, array( 'public' => 1 ) );
                 wp_redirect(
                         add_query_arg(

src/wp-includes/ms-functions.php

@@ -1622 +1622 @@
 }
 
 /**
+ * Notify admin that new site was created.
+ *
+ * Filter {@see 'wpmu_new_site_notification'} to disable or bypass.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $blog_id    Blog ID.
+ * @param string $user_login User login.
+ * @param string $title Site title.
+ * @return bool
+ */
+function wpmu_new_site_notification($blog_id, $user_login, $title) {
+    /**
+     * Filters whether to bypass the new site created email for admin.
+     *
+     * Returning false disables the welcome email.
+     *
+     * @since MU (3.0.0)
+     *
+     * @param int|bool $blog_id Blog ID.
+     * @param int $user_id User ID.
+     * @param string $password User password.
+     * @param string $title Site title.
+     * @param array $meta Signup meta data. By default, contains the requested privacy setting and lang_id.
+     */
+    if (!apply_filters('wpmu_new_site_notification', $blog_id, $user_login, $title))
+        return false;
+
+    wp_mail(
+        get_site_option('admin_email'),
+        sprintf(
+        /* translators: %s: network name */
+            __('[%s] New Site Created'),
+            get_network()->site_name
+        ),
+        sprintf(
+        /* translators: 1: user login, 2: site url, 3: site name/title */
+            __('New site created by %1$s
+
+Address: %2$s
+Name: %3$s'),
+            $user_login,
+            get_site_url($blog_id),
+            wp_unslash($title)
+        ),
+        sprintf(
+            'From: "%1$s" <%2$s>',
+            _x('Site Admin', 'email "From" field'),
+            get_site_option('admin_email')
+        )
+    );
+
+    return true;
+}
+
+/**
  * Notify a user that their blog activation has been successful.
  *
  * Filter {@see 'wpmu_welcome_notification'} to disable or bypass.