250 lines
6.7 KiB
PHP
250 lines
6.7 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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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 {@see error_get_last()}
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* @param array $extension The extension that caused the error. {
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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 ( $sent ) {
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return true;
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}
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return new WP_Error( 'email_failed', __( 'The email could not be sent. Possible reason: your host may have disabled the mail() function.' ) );
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}
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$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 {@see error_get_last()}
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* @param array $extension Extension that caused the error.
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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 = false;
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// The switch_to_locale() function is loaded before it can actually be used.
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if ( function_exists( 'switch_to_locale' ) && isset( $GLOBALS['wp_locale_switcher'] ) ) {
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$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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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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$details = '';
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}
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$message = __(
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'Howdy,
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Your site recently crashed on ###LOCATION### and may not be working as expected.
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###CAUSE###
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Click the link below to initiate recovery mode and fix the problem.
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This link expires in ###EXPIRES###.
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###LINK### ###DETAILS###
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'
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);
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$message = str_replace(
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array(
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'###LINK###',
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'###LOCATION###',
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'###EXPIRES###',
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'###CAUSE###',
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'###DETAILS###',
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),
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array(
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$url,
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'TBD',
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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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),
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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 name */
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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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);
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/**
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* Filter the contents of the Recovery Mode email.
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*
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* @since 5.2.0
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*
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* @param array $email Used to build wp_mail().
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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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);
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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 The extension that caused the error.
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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' === $extension['type'] ) {
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if ( ! function_exists( 'get_plugins' ) ) {
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require_once ABSPATH . 'wp-admin/includes/plugin.php';
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}
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$plugins = get_plugins();
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$name = '';
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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']}/{$extension['slug']}.php" ] ) ) {
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$name = $plugins[ "{$extension['slug']}/{$extension['slug']}.php" ]['Name'];
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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']}/" ) ) {
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$name = $plugin_data['Name'];
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break;
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}
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}
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}
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if ( empty( $name ) ) {
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$name = $extension['slug'];
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}
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/* translators: %s: plugin name */
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$cause = sprintf( __( 'This was be caused by the %s plugin.' ), $name );
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} else {
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$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( __( 'This was be caused by the %s theme.' ), $name );
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}
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return $cause;
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}
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}
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