WordPress/wp-includes/class-wp-recovery-mode-emai...

386 lines
11 KiB
PHP
Raw Normal View History

<?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
*/
Code Modernization: Add `AllowDynamicProperties` attribute to all (parent) classes. Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. There are a number of ways to mitigate this: * If it is an accidental typo for a declared property: fix the typo. * For known properties: declare them on the class. * For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in. * For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes. Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1. To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP. The logic used for this commit is as follows: * If a class already has the attribute: no action needed. * If a class does not `extend`: add the attribute. * If a class does `extend`: - If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties). - If it extends a PHP native class: add the attribute. - If it extends a class from one of WP's external dependencies: add the attribute. * In all other cases: no action — the attribute should not be needed as child classes inherit from the parent. Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details. This commit only affects classes in the `src` directory of WordPress core. * Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033. * While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately. Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties]. Follow-up to [53922]. Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath. See #56513, #56034. Built from https://develop.svn.wordpress.org/trunk@54133 git-svn-id: http://core.svn.wordpress.org/trunk@53692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-09-12 11:47:14 -04:00
#[AllowDynamicProperties]
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 `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',
sprintf(
/* translators: %s: mail() */
__( 'The email could not be sent. Possible reason: your host may have disabled the %s function.' ),
'mail()'
)
);
}
$err_message = sprintf(
/* translators: 1: Last sent as a human time diff, 2: Wait time as a human time diff. */
__( 'A recovery link was already sent %1$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 `error_get_last()`.
* @param array $extension {
* The extension that caused the error.
*
* @type string $slug The extension slug. The directory of the plugin or theme.
* @type string $type The extension type. Either 'plugin' or 'theme'.
* }
* @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 string $message 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.' ) );
/**
* Filters the debug information included in the fatal error protection email.
*
* @since 5.3.0
*
* @param array $message An associative array of debug information.
*/
$debug = apply_filters( 'recovery_email_debug_info', $this->get_debug( $extension ) );
/* translators: Do not translate LINK, EXPIRES, CAUSE, DETAILS, SITEURL, PAGEURL, SUPPORT. DEBUG: 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.
When seeking help with this issue, you may be asked for some of the following information:
###DEBUG###
###DETAILS###'
);
$message = str_replace(
array(
'###LINK###',
'###EXPIRES###',
'###CAUSE###',
'###DETAILS###',
'###SITEURL###',
'###PAGEURL###',
'###SUPPORT###',
'###DEBUG###',
),
array(
$url,
human_time_diff( time() + $rate_limit ),
$cause ? "\n{$cause}\n" : "\n",
$details,
home_url( '/' ),
home_url( $_SERVER['REQUEST_URI'] ),
$support,
implode( "\r\n", $debug ),
),
$message
);
$email = array(
'to' => $this->get_recovery_mode_email_address(),
/* translators: %s: Site title. */
'subject' => __( '[%s] Your Site is Experiencing a Technical Issue' ),
'message' => $message,
'headers' => '',
'attachments' => '',
);
/**
* Filters the contents of the Recovery Mode email.
*
* @since 5.2.0
* @since 5.6.0 The `$email` argument includes the `attachments` key.
*
* @param array $email {
* Used to build a call to wp_mail().
*
* @type string|array $to Array or comma-separated list of email addresses to send message.
* @type string $subject Email subject
* @type string $message Message contents
* @type string|array $headers Optional. Additional headers.
* @type string|array $attachments Optional. Files to attach.
* }
* @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'],
$email['attachments']
);
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.
*
* @type string $slug The extension slug. The directory of the plugin or theme.
* @type string $type The extension type. Either 'plugin' or 'theme'.
* }
* @return string Message about which extension caused the error.
*/
private function get_cause( $extension ) {
if ( 'plugin' === $extension['type'] ) {
$plugin = $this->get_plugin( $extension );
if ( false === $plugin ) {
$name = $extension['slug'];
} else {
$name = $plugin['Name'];
}
/* 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;
}
/**
* Return the details for a single plugin based on the extension data from an error.
*
* @since 5.3.0
*
* @param array $extension {
* The extension that caused the error.
*
* @type string $slug The extension slug. The directory of the plugin or theme.
* @type string $type The extension type. Either 'plugin' or 'theme'.
* }
* @return array|false A plugin array {@see get_plugins()} or `false` if no plugin was found.
*/
private function get_plugin( $extension ) {
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
$plugins = get_plugins();
// Assume plugin main file name first since it is a common convention.
if ( isset( $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ] ) ) {
return $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ];
} else {
foreach ( $plugins as $file => $plugin_data ) {
if ( 0 === strpos( $file, "{$extension['slug']}/" ) || $file === $extension['slug'] ) {
return $plugin_data;
}
}
}
return false;
}
/**
* Return debug information in an easy to manipulate format.
*
* @since 5.3.0
*
* @param array $extension {
* The extension that caused the error.
*
* @type string $slug The extension slug. The directory of the plugin or theme.
* @type string $type The extension type. Either 'plugin' or 'theme'.
* }
* @return array An associative array of debug information.
*/
private function get_debug( $extension ) {
$theme = wp_get_theme();
$wp_version = get_bloginfo( 'version' );
if ( $extension ) {
$plugin = $this->get_plugin( $extension );
} else {
$plugin = null;
}
$debug = array(
'wp' => sprintf(
/* translators: %s: Current WordPress version number. */
__( 'WordPress version %s' ),
$wp_version
),
'theme' => sprintf(
/* translators: 1: Current active theme name. 2: Current active theme version. */
__( 'Active theme: %1$s (version %2$s)' ),
$theme->get( 'Name' ),
$theme->get( 'Version' )
),
);
if ( null !== $plugin ) {
$debug['plugin'] = sprintf(
/* translators: 1: The failing plugins name. 2: The failing plugins version. */
__( 'Current plugin: %1$s (version %2$s)' ),
$plugin['Name'],
$plugin['Version']
);
}
$debug['php'] = sprintf(
/* translators: %s: The currently used PHP version. */
__( 'PHP version %s' ),
PHP_VERSION
);
return $debug;
}
}