381 lines
11 KiB
PHP
381 lines
11 KiB
PHP
<?php
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/**
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* Error Protection API: WP_Recovery_Mode_Email_Link class
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*
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* @package WordPress
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* @since 5.2.0
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*/
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/**
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* Core class used to send an email with a link to begin Recovery Mode.
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*
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* @since 5.2.0
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*/
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#[AllowDynamicProperties]
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final class WP_Recovery_Mode_Email_Service {
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const RATE_LIMIT_OPTION = 'recovery_mode_email_last_sent';
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/**
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* Service to generate recovery mode URLs.
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*
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* @since 5.2.0
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* @var WP_Recovery_Mode_Link_Service
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*/
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private $link_service;
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/**
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* WP_Recovery_Mode_Email_Service constructor.
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*
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* @since 5.2.0
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*
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* @param WP_Recovery_Mode_Link_Service $link_service
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*/
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public function __construct( WP_Recovery_Mode_Link_Service $link_service ) {
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$this->link_service = $link_service;
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}
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/**
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* Sends the recovery mode email if the rate limit has not been sent.
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*
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* @since 5.2.0
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*
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* @param int $rate_limit Number of seconds before another email can be sent.
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* @param array $error Error details from `error_get_last()`.
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* @param array $extension {
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* The extension that caused the error.
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*
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* @type string $slug The extension slug. The plugin or theme's directory.
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* @type string $type The extension type. Either 'plugin' or 'theme'.
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* }
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* @return true|WP_Error True if email sent, WP_Error otherwise.
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*/
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public function maybe_send_recovery_mode_email( $rate_limit, $error, $extension ) {
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$last_sent = get_option( self::RATE_LIMIT_OPTION );
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if ( ! $last_sent || time() > $last_sent + $rate_limit ) {
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if ( ! update_option( self::RATE_LIMIT_OPTION, time() ) ) {
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return new WP_Error( 'storage_error', __( 'Could not update the email last sent time.' ) );
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}
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$sent = $this->send_recovery_mode_email( $rate_limit, $error, $extension );
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if ( $sent ) {
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return true;
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}
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return new WP_Error(
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'email_failed',
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sprintf(
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/* translators: %s: mail() */
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__( 'The email could not be sent. Possible reason: your host may have disabled the %s function.' ),
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'mail()'
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)
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);
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}
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$err_message = sprintf(
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/* translators: 1: Last sent as a human time diff, 2: Wait time as a human time diff. */
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__( 'A recovery link was already sent %1$s ago. Please wait another %2$s before requesting a new email.' ),
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human_time_diff( $last_sent ),
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human_time_diff( $last_sent + $rate_limit )
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);
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return new WP_Error( 'email_sent_already', $err_message );
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}
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/**
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* Clears the rate limit, allowing a new recovery mode email to be sent immediately.
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*
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* @since 5.2.0
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*
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* @return bool True on success, false on failure.
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*/
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public function clear_rate_limit() {
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return delete_option( self::RATE_LIMIT_OPTION );
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}
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/**
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* Sends the Recovery Mode email to the site admin email address.
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*
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* @since 5.2.0
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*
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* @param int $rate_limit Number of seconds before another email can be sent.
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* @param array $error Error details from `error_get_last()`.
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* @param array $extension {
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* The extension that caused the error.
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*
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* @type string $slug The extension slug. The directory of the plugin or theme.
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* @type string $type The extension type. Either 'plugin' or 'theme'.
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* }
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* @return bool Whether the email was sent successfully.
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*/
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private function send_recovery_mode_email( $rate_limit, $error, $extension ) {
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$url = $this->link_service->generate_url();
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$blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
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$switched_locale = switch_to_locale( get_locale() );
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if ( $extension ) {
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$cause = $this->get_cause( $extension );
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$details = wp_strip_all_tags( wp_get_extension_error_description( $error ) );
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if ( $details ) {
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$header = __( 'Error Details' );
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$details = "\n\n" . $header . "\n" . str_pad( '', strlen( $header ), '=' ) . "\n" . $details;
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}
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} else {
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$cause = '';
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$details = '';
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}
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/**
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* Filters the support message sent with the the fatal error protection email.
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*
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* @since 5.2.0
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*
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* @param string $message The Message to include in the email.
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*/
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$support = apply_filters( 'recovery_email_support_info', __( 'Please contact your host for assistance with investigating this issue further.' ) );
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/**
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* Filters the debug information included in the fatal error protection email.
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*
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* @since 5.3.0
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*
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* @param array $message An associative array of debug information.
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*/
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$debug = apply_filters( 'recovery_email_debug_info', $this->get_debug( $extension ) );
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/* translators: Do not translate LINK, EXPIRES, CAUSE, DETAILS, SITEURL, PAGEURL, SUPPORT. DEBUG: those are placeholders. */
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$message = __(
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'Howdy!
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WordPress has 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.
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###CAUSE###
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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.
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###SUPPORT###
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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.
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###LINK###
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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.
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When seeking help with this issue, you may be asked for some of the following information:
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###DEBUG###
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###DETAILS###'
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);
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$message = str_replace(
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array(
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'###LINK###',
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'###EXPIRES###',
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'###CAUSE###',
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'###DETAILS###',
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'###SITEURL###',
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'###PAGEURL###',
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'###SUPPORT###',
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'###DEBUG###',
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),
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array(
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$url,
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human_time_diff( time() + $rate_limit ),
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$cause ? "\n{$cause}\n" : "\n",
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$details,
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home_url( '/' ),
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home_url( $_SERVER['REQUEST_URI'] ),
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$support,
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implode( "\r\n", $debug ),
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),
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$message
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);
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$email = array(
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'to' => $this->get_recovery_mode_email_address(),
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/* translators: %s: Site title. */
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'subject' => __( '[%s] Your Site is Experiencing a Technical Issue' ),
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'message' => $message,
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'headers' => '',
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'attachments' => '',
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);
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/**
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* Filters the contents of the Recovery Mode email.
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*
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* @since 5.2.0
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* @since 5.6.0 The `$email` argument includes the `attachments` key.
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*
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* @param array $email {
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* Used to build a call to wp_mail().
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*
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* @type string|array $to Array or comma-separated list of email addresses to send message.
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* @type string $subject Email subject
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* @type string $message Message contents
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* @type string|array $headers Optional. Additional headers.
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* @type string|array $attachments Optional. Files to attach.
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* }
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* @param string $url URL to enter recovery mode.
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*/
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$email = apply_filters( 'recovery_mode_email', $email, $url );
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$sent = wp_mail(
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$email['to'],
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wp_specialchars_decode( sprintf( $email['subject'], $blogname ) ),
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$email['message'],
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$email['headers'],
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$email['attachments']
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);
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if ( $switched_locale ) {
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restore_previous_locale();
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}
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return $sent;
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}
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/**
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* Gets the email address to send the recovery mode link to.
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*
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* @since 5.2.0
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*
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* @return string Email address to send recovery mode link to.
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*/
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private function get_recovery_mode_email_address() {
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if ( defined( 'RECOVERY_MODE_EMAIL' ) && is_email( RECOVERY_MODE_EMAIL ) ) {
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return RECOVERY_MODE_EMAIL;
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}
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return get_option( 'admin_email' );
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}
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/**
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* Gets the description indicating the possible cause for the error.
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*
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* @since 5.2.0
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*
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* @param array $extension {
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* The extension that caused the error.
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*
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* @type string $slug The extension slug. The directory of the plugin or theme.
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* @type string $type The extension type. Either 'plugin' or 'theme'.
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* }
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* @return string Message about which extension caused the error.
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*/
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private function get_cause( $extension ) {
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if ( 'plugin' === $extension['type'] ) {
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$plugin = $this->get_plugin( $extension );
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if ( false === $plugin ) {
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$name = $extension['slug'];
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} else {
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$name = $plugin['Name'];
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}
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/* translators: %s: Plugin name. */
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$cause = sprintf( __( 'In this case, WordPress caught an error with one of your plugins, %s.' ), $name );
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} else {
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$theme = wp_get_theme( $extension['slug'] );
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$name = $theme->exists() ? $theme->display( 'Name' ) : $extension['slug'];
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/* translators: %s: Theme name. */
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$cause = sprintf( __( 'In this case, WordPress caught an error with your theme, %s.' ), $name );
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}
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return $cause;
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}
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/**
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* Return the details for a single plugin based on the extension data from an error.
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*
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* @since 5.3.0
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*
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* @param array $extension {
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* The extension that caused the error.
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*
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* @type string $slug The extension slug. The directory of the plugin or theme.
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* @type string $type The extension type. Either 'plugin' or 'theme'.
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* }
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* @return array|false A plugin array {@see get_plugins()} or `false` if no plugin was found.
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*/
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private function get_plugin( $extension ) {
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if ( ! function_exists( 'get_plugins' ) ) {
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require_once ABSPATH . 'wp-admin/includes/plugin.php';
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}
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$plugins = get_plugins();
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// Assume plugin main file name first since it is a common convention.
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if ( isset( $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ] ) ) {
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return $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ];
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} else {
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foreach ( $plugins as $file => $plugin_data ) {
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if ( 0 === strpos( $file, "{$extension['slug']}/" ) || $file === $extension['slug'] ) {
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return $plugin_data;
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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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* Return debug information in an easy to manipulate format.
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*
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* @since 5.3.0
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*
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* @param array $extension {
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* The extension that caused the error.
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*
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* @type string $slug The extension slug. The directory of the plugin or theme.
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* @type string $type The extension type. Either 'plugin' or 'theme'.
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* }
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* @return array An associative array of debug information.
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*/
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private function get_debug( $extension ) {
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$theme = wp_get_theme();
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$wp_version = get_bloginfo( 'version' );
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if ( $extension ) {
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$plugin = $this->get_plugin( $extension );
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} else {
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$plugin = null;
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}
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$debug = array(
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'wp' => sprintf(
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/* translators: %s: Current WordPress version number. */
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__( 'WordPress version %s' ),
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$wp_version
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),
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'theme' => sprintf(
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/* translators: 1: Current active theme name. 2: Current active theme version. */
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__( 'Active theme: %1$s (version %2$s)' ),
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$theme->get( 'Name' ),
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$theme->get( 'Version' )
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),
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);
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if ( null !== $plugin ) {
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$debug['plugin'] = sprintf(
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/* translators: 1: The failing plugins name. 2: The failing plugins version. */
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__( 'Current plugin: %1$s (version %2$s)' ),
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$plugin['Name'],
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$plugin['Version']
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);
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}
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$debug['php'] = sprintf(
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/* translators: %s: The currently used PHP version. */
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__( 'PHP version %s' ),
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PHP_VERSION
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);
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return $debug;
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}
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}
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