--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-wp-recovery-mode-email-service.php Mon Oct 14 18:28:13 2019 +0200
@@ -0,0 +1,268 @@
+<?php
+/**
+ * Error Protection API: WP_Recovery_Mode_Email_Link class
+ *
+ * @package WordPress
+ * @since 5.2.0
+ */
+
+/**
+ * Core class used to send an email with a link to begin Recovery Mode.
+ *
+ * @since 5.2.0
+ */
+final class WP_Recovery_Mode_Email_Service {
+
+ const RATE_LIMIT_OPTION = 'recovery_mode_email_last_sent';
+
+ /**
+ * Service to generate recovery mode URLs.
+ *
+ * @since 5.2.0
+ * @var WP_Recovery_Mode_Link_Service
+ */
+ private $link_service;
+
+ /**
+ * WP_Recovery_Mode_Email_Service constructor.
+ *
+ * @since 5.2.0
+ *
+ * @param WP_Recovery_Mode_Link_Service $link_service
+ */
+ public function __construct( WP_Recovery_Mode_Link_Service $link_service ) {
+ $this->link_service = $link_service;
+ }
+
+ /**
+ * Sends the recovery mode email if the rate limit has not been sent.
+ *
+ * @since 5.2.0
+ *
+ * @param int $rate_limit Number of seconds before another email can be sent.
+ * @param array $error Error details from {@see error_get_last()}
+ * @param array $extension The extension that caused the error. {
+ * @type string $slug The extension slug. The plugin or theme's directory.
+ * @type string $type The extension type. Either 'plugin' or 'theme'.
+ * }
+ * @return true|WP_Error True if email sent, WP_Error otherwise.
+ */
+ public function maybe_send_recovery_mode_email( $rate_limit, $error, $extension ) {
+
+ $last_sent = get_option( self::RATE_LIMIT_OPTION );
+
+ if ( ! $last_sent || time() > $last_sent + $rate_limit ) {
+ if ( ! update_option( self::RATE_LIMIT_OPTION, time() ) ) {
+ return new WP_Error( 'storage_error', __( 'Could not update the email last sent time.' ) );
+ }
+
+ $sent = $this->send_recovery_mode_email( $rate_limit, $error, $extension );
+
+ if ( $sent ) {
+ return true;
+ }
+
+ return new WP_Error( 'email_failed', __( 'The email could not be sent. Possible reason: your host may have disabled the mail() function.' ) );
+ }
+
+ $err_message = sprintf(
+ /* translators: 1. Last sent as a human time diff 2. Wait time as a human time diff. */
+ __( 'A recovery link was already sent %1$s ago. Please wait another %2$s before requesting a new email.' ),
+ human_time_diff( $last_sent ),
+ human_time_diff( $last_sent + $rate_limit )
+ );
+
+ return new WP_Error( 'email_sent_already', $err_message );
+ }
+
+ /**
+ * Clears the rate limit, allowing a new recovery mode email to be sent immediately.
+ *
+ * @since 5.2.0
+ *
+ * @return bool True on success, false on failure.
+ */
+ public function clear_rate_limit() {
+ return delete_option( self::RATE_LIMIT_OPTION );
+ }
+
+ /**
+ * Sends the Recovery Mode email to the site admin email address.
+ *
+ * @since 5.2.0
+ *
+ * @param int $rate_limit Number of seconds before another email can be sent.
+ * @param array $error Error details from {@see error_get_last()}
+ * @param array $extension Extension that caused the error.
+ *
+ * @return bool Whether the email was sent successfully.
+ */
+ private function send_recovery_mode_email( $rate_limit, $error, $extension ) {
+
+ $url = $this->link_service->generate_url();
+ $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
+
+ $switched_locale = false;
+
+ // The switch_to_locale() function is loaded before it can actually be used.
+ if ( function_exists( 'switch_to_locale' ) && isset( $GLOBALS['wp_locale_switcher'] ) ) {
+ $switched_locale = switch_to_locale( get_locale() );
+ }
+
+ if ( $extension ) {
+ $cause = $this->get_cause( $extension );
+ $details = wp_strip_all_tags( wp_get_extension_error_description( $error ) );
+
+ if ( $details ) {
+ $header = __( 'Error Details' );
+ $details = "\n\n" . $header . "\n" . str_pad( '', strlen( $header ), '=' ) . "\n" . $details;
+ }
+ } else {
+ $cause = '';
+ $details = '';
+ }
+
+ /**
+ * Filters the support message sent with the the fatal error protection email.
+ *
+ * @since 5.2.0
+ *
+ * @param $message string The Message to include in the email.
+ */
+ $support = apply_filters( 'recovery_email_support_info', __( 'Please contact your host for assistance with investigating this issue further.' ) );
+
+ /* translators: Do not translate LINK, EXPIRES, CAUSE, DETAILS, SITEURL, PAGEURL, SUPPORT: those are placeholders. */
+ $message = __(
+ 'Howdy!
+
+Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.
+###CAUSE###
+First, visit your website (###SITEURL###) and check for any visible issues. Next, visit the page where the error was caught (###PAGEURL###) and check for any visible issues.
+
+###SUPPORT###
+
+If your site appears broken and you can\'t access your dashboard normally, WordPress now has a special "recovery mode". This lets you safely login to your dashboard and investigate further.
+
+###LINK###
+
+To keep your site safe, this link will expire in ###EXPIRES###. Don\'t worry about that, though: a new link will be emailed to you if the error occurs again after it expires.
+
+###DETAILS###'
+ );
+ $message = str_replace(
+ array(
+ '###LINK###',
+ '###EXPIRES###',
+ '###CAUSE###',
+ '###DETAILS###',
+ '###SITEURL###',
+ '###PAGEURL###',
+ '###SUPPORT###',
+ ),
+ array(
+ $url,
+ human_time_diff( time() + $rate_limit ),
+ $cause ? "\n{$cause}\n" : "\n",
+ $details,
+ home_url( '/' ),
+ home_url( $_SERVER['REQUEST_URI'] ),
+ $support,
+ ),
+ $message
+ );
+
+ $email = array(
+ 'to' => $this->get_recovery_mode_email_address(),
+ /* translators: %s: site name */
+ 'subject' => __( '[%s] Your Site is Experiencing a Technical Issue' ),
+ 'message' => $message,
+ 'headers' => '',
+ );
+
+ /**
+ * Filter the contents of the Recovery Mode email.
+ *
+ * @since 5.2.0
+ *
+ * @param array $email Used to build wp_mail().
+ * @param string $url URL to enter recovery mode.
+ */
+ $email = apply_filters( 'recovery_mode_email', $email, $url );
+
+ $sent = wp_mail(
+ $email['to'],
+ wp_specialchars_decode( sprintf( $email['subject'], $blogname ) ),
+ $email['message'],
+ $email['headers']
+ );
+
+ if ( $switched_locale ) {
+ restore_previous_locale();
+ }
+
+ return $sent;
+ }
+
+ /**
+ * Gets the email address to send the recovery mode link to.
+ *
+ * @since 5.2.0
+ *
+ * @return string Email address to send recovery mode link to.
+ */
+ private function get_recovery_mode_email_address() {
+ if ( defined( 'RECOVERY_MODE_EMAIL' ) && is_email( RECOVERY_MODE_EMAIL ) ) {
+ return RECOVERY_MODE_EMAIL;
+ }
+
+ return get_option( 'admin_email' );
+ }
+
+ /**
+ * Gets the description indicating the possible cause for the error.
+ *
+ * @since 5.2.0
+ *
+ * @param array $extension The extension that caused the error.
+ * @return string Message about which extension caused the error.
+ */
+ private function get_cause( $extension ) {
+
+ if ( 'plugin' === $extension['type'] ) {
+ if ( ! function_exists( 'get_plugins' ) ) {
+ require_once ABSPATH . 'wp-admin/includes/plugin.php';
+ }
+
+ $plugins = get_plugins();
+
+ $name = '';
+
+ // Assume plugin main file name first since it is a common convention.
+ if ( isset( $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ] ) ) {
+ $name = $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ]['Name'];
+ } else {
+ foreach ( $plugins as $file => $plugin_data ) {
+ if ( 0 === strpos( $file, "{$extension['slug']}/" ) || $file === $extension['slug'] ) {
+ $name = $plugin_data['Name'];
+ break;
+ }
+ }
+ }
+
+ if ( empty( $name ) ) {
+ $name = $extension['slug'];
+ }
+
+ /* translators: %s: plugin name */
+ $cause = sprintf( __( 'In this case, WordPress caught an error with one of your plugins, %s.' ), $name );
+ } else {
+ $theme = wp_get_theme( $extension['slug'] );
+ $name = $theme->exists() ? $theme->display( 'Name' ) : $extension['slug'];
+
+ /* translators: %s: theme name */
+ $cause = sprintf( __( 'In this case, WordPress caught an error with your theme, %s.' ), $name );
+ }
+
+ return $cause;
+ }
+}