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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| /**
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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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| 
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| 	const RATE_LIMIT_OPTION = 'recovery_mode_email_last_sent';
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| 
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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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| 	/**
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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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| 	/**
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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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| 
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| 		$last_sent = get_option( self::RATE_LIMIT_OPTION );
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| 
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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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| 
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| 			$sent = $this->send_recovery_mode_email( $rate_limit, $error, $extension );
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| 
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| 			if ( $sent ) {
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| 				return true;
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| 			}
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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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| 
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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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| 
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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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| 	/**
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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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| 	/**
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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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| 
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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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| 
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| 		$switched_locale = switch_to_locale( get_locale() );
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| 
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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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| 
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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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| 		/**
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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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| 		/**
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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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| 
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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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| 
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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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| 
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| ###SUPPORT###
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| 
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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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| 
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| ###LINK###
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| 
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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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| 
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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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| 
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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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| 
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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'     => $message,
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| 			'headers'     => '',
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| 			'attachments' => '',
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| 		);
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| 
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| 		/**
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| 		 * Filters the contents of the Recovery Mode email.
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| 		 *
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| 		 * @since 5.2.0
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| 		 * @since 5.6.0 The `$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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| 
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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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| 
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| 		if ( $switched_locale ) {
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| 			restore_previous_locale();
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| 		}
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| 
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| 		return $sent;
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| 	}
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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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| 
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| 		return get_option( 'admin_email' );
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| 	}
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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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| 
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| 		if ( 'plugin' === $extension['type'] ) {
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| 			$plugin = $this->get_plugin( $extension );
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| 
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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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| 
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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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| 
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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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| 
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| 		return $cause;
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| 	}
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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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| 
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| 		$plugins = get_plugins();
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| 
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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 ( str_starts_with( $file, "{$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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| 
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| 		return false;
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| 	}
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 		return $debug;
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| 	}
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| }
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