Changeset 41163 for trunk/src/wp-includes/user.php

Timestamp:

07/27/2017 02:09:51 AM (9 years ago)

Author:

johnbillion

Message:

Users: Require a confirmation link in an email to be clicked when a user attempts to change their email address.

This adds this previously Multisite-only functionality to single site installations too. This change prevents accidental or erroneous email address changes from potentially locking users out of their account.

Props rodrigosprimo, tharsheblows, johnbillion

Fixes #16470

File:

• trunk/src/wp-includes/user.php (modified) (1 diff)

trunk/src/wp-includes/user.php

@@ -2591 +2591 @@
         return $current_user;
 }
+
+/**
+ * Sends an email when an email address change is requested.
+ *
+ * @since 3.0.0
+ * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific.
+ *
+ * @global WP_Error $errors WP_Error object.
+ * @global wpdb     $wpdb   WordPress database object.
+ */
+function send_confirmation_on_profile_email() {
+        global $errors, $wpdb;
+
+        $current_user = wp_get_current_user();
+        if ( ! is_object( $errors ) ) {
+                $errors = new WP_Error();
+        }
+
+        if ( $current_user->ID != $_POST['user_id'] ) {
+                return false;
+        }
+
+        if ( $current_user->user_email != $_POST['email'] ) {
+                if ( ! is_email( $_POST['email'] ) ) {
+                        $errors->add( 'user_email', __( "<strong>ERROR</strong>: The email address isn&#8217;t correct." ), array(
+                                'form-field' => 'email',
+                        ) );
+
+                        return;
+                }
+
+                if ( $wpdb->get_var( $wpdb->prepare( "SELECT user_email FROM {$wpdb->users} WHERE user_email=%s", $_POST['email'] ) ) ) {
+                        $errors->add( 'user_email', __( "<strong>ERROR</strong>: The email address is already used." ), array(
+                                'form-field' => 'email',
+                        ) );
+                        delete_user_meta( $current_user->ID, '_new_email' );
+
+                        return;
+                }
+
+                $hash           = md5( $_POST['email'] . time() . mt_rand() );
+                $new_user_email = array(
+                        'hash'     => $hash,
+                        'newemail' => $_POST['email'],
+                );
+                update_user_meta( $current_user->ID, '_new_email', $new_user_email );
+
+                /* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */
+                $email_text = __( 'Howdy ###USERNAME###,
+
+You recently requested to have the email address on your account changed.
+
+If this is correct, please click on the following link to change it:
+###ADMIN_URL###
+
+You can safely ignore and delete this email if you do not want to
+take this action.
+
+This email has been sent to ###EMAIL###
+
+Regards,
+All at ###SITENAME###
+###SITEURL###' );
+
+                /**
+                 * Filters the email text sent when a user changes emails.
+                 *
+                 * The following strings have a special meaning and will get replaced dynamically:
+                 * ###USERNAME###  The current user's username.
+                 * ###ADMIN_URL### The link to click on to confirm the email change.
+                 * ###EMAIL###     The new email.
+                 * ###SITENAME###  The name of the site.
+                 * ###SITEURL###   The URL to the site.
+                 *
+                 * @since MU
+                 * @since 4.9.0 This filter is no longer Multisite specific.
+                 *
+                 * @param string $email_text     Text in the email.
+                 * @param string $new_user_email New user email that the current user has changed to.
+                 */
+                $content = apply_filters( 'new_user_email_content', $email_text, $new_user_email );
+
+                $content = str_replace( '###USERNAME###', $current_user->user_login, $content );
+                $content = str_replace( '###ADMIN_URL###', esc_url( admin_url( 'profile.php?newuseremail=' . $hash ) ), $content );
+                $content = str_replace( '###EMAIL###', $_POST['email'], $content );
+                $content = str_replace( '###SITENAME###', get_site_option( 'site_name' ), $content );
+                $content = str_replace( '###SITEURL###', network_home_url(), $content );
+
+                wp_mail( $_POST['email'], sprintf( __( '[%s] New Email Address' ), wp_specialchars_decode( get_option( 'blogname' ) ) ), $content );
+
+                $_POST['email'] = $current_user->user_email;
+        }
+}
+
+/**
+ * Adds an admin notice alerting the user to check for confirmation email
+ * after email address change.
+ *
+ * @since 3.0.0
+ * @since 4.9.0 This function was moved from wp-admin/includes/ms.php so it's no longer Multisite specific.
+ *
+ * @global string $pagenow
+ */
+function new_user_email_admin_notice() {
+        global $pagenow;
+        if ( 'profile.php' === $pagenow && isset( $_GET['updated'] ) && $email = get_user_meta( get_current_user_id(), '_new_email', true ) ) {
+                /* translators: %s: New email address */
+                echo '<div class="notice notice-info"><p>' . sprintf( __( 'Your email address has not been updated yet. Please check your inbox at %s for a confirmation email.' ), '<code>' . esc_html( $email['newemail'] ) . '</code>' ) . '</p></div>';
+        }
+}