Ubuntu

wp_email_error = $error; } public function set_content_type( $content_type ) { if ( ! empty( $this->wp_content_type ) ) { return $this->wp_content_type; } return $content_type; } public function send( Mail $mail ) { $this->wp_content_type = null; $this->wp_email_error = null; $this->mail = $mail; if ( $mail->getBodyHtml() ) { $content = $mail->getBodyHtml(); $this->wp_content_type = 'text/html'; } elseif ( $mail->getBodyText() ) { $content = $mail->getBodyText(); $this->wp_content_type = 'text/plain'; } else { // seems no content... $content = ''; } $attachments = $mail->getAttachments(); $recipients = array_keys( $mail->getRecipients() ); $this->send_mail_through_wordpress( $recipients, $mail->getSubject(), $content, $attachments ); } private function remember_mail_sent() { $history = WpMatomo::$settings->get_global_option( 'mail_history' ); if ( empty( $history ) || ! is_array( $history ) ) { $history = []; } // allows us to see if there is a WP Mail issue or a Matomo issue array_unshift( $history, gmdate( 'Y-m-d H:i:s', time() ) ); $history = array_slice( $history, 0, 3 ); // keep only the last 3 versions WpMatomo::$settings->set_global_option( 'mail_history', $history ); WpMatomo::$settings->save(); } private function send_mail_through_wordpress( $recipients, $subject, $content, $attachments ) { $this->wp_email_error = null; add_action( 'wp_mail_failed', [ $this, 'on_error' ] ); add_filter( 'wp_mail_content_type', [ $this, 'set_content_type' ] ); $this->remember_mail_sent(); $header = ''; if ( ! empty( $attachments ) ) { $random_id = Common::generateUniqId(); $header = 'X-Matomo: ' . $random_id; $executed_action = false; $fluent_smtp_workaround = new WpMatomo\Workarounds\FluentSmtp(); add_action( 'phpmailer_init', function ( &$phpmailer ) use ( $attachments, $subject, $random_id, &$executed_action, $fluent_smtp_workaround ) { /** @var PHPMailer $phpmailer */ if ( $executed_action ) { return; // already done, do not execute another time } $executed_action = true; $match = false; foreach ( $phpmailer->getCustomHeaders() as $header ) { if ( isset( $header[0] ) && isset( $header[1] ) && is_string( $header[0] ) && is_string( $header[1] ) && 'x-matomo' === Common::mb_strtolower( $header[0] ) && trim( $header[1] ) === $random_id ) { $match = true; } } if ( ! $match ) { return; // attachments aren't for this mail } $base64_encoding = class_exists( PHPMailer::class ) ? PHPMailer::ENCODING_BASE64 : 'base64'; foreach ( $attachments as $attachment ) { if ( ! empty( $attachment['cid'] ) ) { $phpmailer->addStringEmbeddedImage( $attachment['content'], $attachment['cid'], $attachment['filename'], $base64_encoding, $attachment['mimetype'] ); } else { $phpmailer->addStringAttachment( $attachment['content'], $attachment['filename'], $base64_encoding, $attachment['mimetype'] ); // smtp2go does not correctly detect attachments add via PHPMailer::addStringAttachment. // addStringAttachment() will set the attachment's "cid" to `0`, but in SMTP2GOMailer.php // inline attachments are only detected if the cid is non-empty and is a string. further, // the cid is used as the filename. // // to workaround this, we manually set the cid to the attachment filename. if ( is_plugin_active( 'smtp2go/smtp2go-wordpress-plugin.php' ) ) { $attachments = $phpmailer->getAttachments(); $attachments[ count( $attachments ) - 1 ][7] = $attachment['filename']; $property = new \ReflectionProperty( get_class( $phpmailer ), 'attachment' ); $property->setAccessible( true ); $property->setValue( $phpmailer, $attachments ); } } } $phpmailer = $fluent_smtp_workaround->make_php_mailer_proxy( $phpmailer ); } ); } $success = wp_mail( $recipients, $subject, $content, $header ); remove_action( 'wp_mail_failed', [ $this, 'on_error' ] ); remove_filter( 'wp_mail_content_type', [ $this, 'set_content_type' ] ); if ( isset( $fluent_smtp_workaround ) ) { $fluent_smtp_workaround->reset_phpmailer(); } if ( ! $success ) { $message = 'Error unknown.'; if ( ! empty( $this->wp_email_error ) && is_object( $this->wp_email_error ) && $this->wp_email_error instanceof WP_Error ) { $message = $this->wp_email_error->get_error_message(); } if ( $this->mail && $this->mail->getAttachments() ) { $message .= ' (has attachments)'; } if ( $this->wp_content_type ) { $message .= ' (type ' . $this->wp_content_type . ')'; } $logger = new Logger(); $logger->log_exception( 'mail_error', new Exception( $message ) ); $logger->log( 'Matomo mail failed with subject ' . $subject . ': ' . $message ); } $this->wp_content_type = null; $this->wp_email_error = null; } }