File "Mailer.php"
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<?php
namespace WPMailSMTP\Providers\SparkPost;
use WPMailSMTP\ConnectionInterface;
use WPMailSMTP\Helpers\Helpers;
use WPMailSMTP\WP;
use WPMailSMTP\MailCatcherInterface;
use WPMailSMTP\Providers\MailerAbstract;
/**
* Class Mailer.
*
* @since 3.2.0
*/
class Mailer extends MailerAbstract {
/**
* API endpoint used for sites from all regions.
*
* @since 3.2.0
*
* @var string
*/
const API_BASE_US = 'https://api.sparkpost.com/api/v1';
/**
* API endpoint used for sites from EU region.
*
* @since 3.2.0
*
* @var string
*/
const API_BASE_EU = 'https://api.eu.sparkpost.com/api/v1';
/**
* Mailer constructor.
*
* @since 3.2.0
*
* @param MailCatcherInterface $phpmailer The MailCatcher object.
* @param ConnectionInterface $connection The Connection object.
*/
public function __construct( $phpmailer, $connection = null ) {
// Default value should be defined before the parent class constructor fires.
$this->url = self::API_BASE_US;
// We want to prefill everything from MailCatcher class, which extends PHPMailer.
parent::__construct( $phpmailer, $connection );
// We have a special API URL to query in case of EU region.
if ( $this->connection_options->get( $this->mailer, 'region' ) === 'EU' ) {
$this->url = self::API_BASE_EU;
}
$this->url .= '/transmissions';
// Set mailer specific headers.
$this->set_header( 'Authorization', $this->connection_options->get( $this->mailer, 'api_key' ) );
$this->set_header( 'Content-Type', 'application/json' );
// Set default body params.
$this->set_body_param(
[
'options' => [
'open_tracking' => false,
'click_tracking' => false,
'transactional' => true,
],
]
);
/**
* Filters return path.
*
* Email address to use for envelope FROM.
* The domain of the return_path address must be a CNAME-verified sending domain.
* The local part of the return_path address will be overwritten by SparkPost.
*
* @since 3.2.0
*
* @param string $return_path Email address, by default will be used value configured in SparkPost dashboard.
*/
$return_path = apply_filters( 'wp_mail_smtp_providers_sparkpost_mailer_return_path', '' );
if ( $return_path && filter_var( $return_path, FILTER_VALIDATE_EMAIL ) ) {
$this->set_body_param(
[
'return_path' => $return_path,
]
);
}
}
/**
* Redefine the way custom headers are processed for this mailer - they should be in body.
*
* @since 3.2.0
*
* @param array $headers Headers array.
*/
public function set_headers( $headers ) {
foreach ( $headers as $header ) {
$name = isset( $header[0] ) ? $header[0] : false;
$value = isset( $header[1] ) ? $header[1] : false;
$this->set_body_header( $name, $value );
}
// Add custom PHPMailer-specific header.
$this->set_body_header( 'X-Mailer', 'WPMailSMTP/Mailer/' . $this->mailer . ' ' . WPMS_PLUGIN_VER );
$this->set_body_header( 'Message-ID', $this->phpmailer->getLastMessageID() );
}
/**
* This mailer supports email-related custom headers inside a body of the message.
*
* @since 3.2.0
*
* @param string $name Header name.
* @param string $value Header value.
*/
public function set_body_header( $name, $value ) {
$name = sanitize_text_field( $name );
if ( empty( $name ) ) {
return;
}
$headers = isset( $this->body['content']['headers'] ) ? (array) $this->body['content']['headers'] : [];
$value = $this->sanitize_header_value( $name, $value );
$headers[ $name ] = $value;
$this->set_body_param(
[
'content' => [
'headers' => $headers,
],
]
);
}
/**
* Set the From information for an email.
*
* @since 3.2.0
*
* @param string $email The sender email address.
* @param string $name The sender name.
*/
public function set_from( $email, $name ) {
if ( ! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
return;
}
$from['email'] = $email;
if ( ! empty( $name ) ) {
$from['name'] = $name;
}
$this->set_body_param(
[
'content' => [
'from' => $from,
],
]
);
}
/**
* Set email recipients: to, cc, bcc.
*
* @since 3.2.0
*
* @param array $recipients Email recipients.
*/
public function set_recipients( $recipients ) { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.TooHigh
if ( empty( $recipients ) ) {
return;
}
$recipients_to = isset( $recipients['to'] ) && is_array( $recipients['to'] ) ? $recipients['to'] : [];
$header_to = implode( ',', array_map( [ $this->phpmailer, 'addrFormat' ], $recipients_to ) );
$default = [ 'to', 'cc', 'bcc' ];
foreach ( $recipients as $type => $emails ) {
if (
! in_array( $type, $default, true ) ||
empty( $emails ) ||
! is_array( $emails )
) {
continue;
}
$data = [];
foreach ( $emails as $email ) {
$addr = isset( $email[0] ) ? $email[0] : false;
if ( ! filter_var( $addr, FILTER_VALIDATE_EMAIL ) ) {
continue;
}
$data[] = [
'address' => $this->build_recipient( $email, $header_to ),
];
}
// CC recipients must be also included as header.
if ( $type === 'cc' ) {
$this->set_body_header( 'CC', implode( ',', array_map( [ $this->phpmailer, 'addrFormat' ], $emails ) ) );
}
if ( ! empty( $data ) ) {
$this->set_body_param(
[
'recipients' => $data,
]
);
}
}
}
/**
* Set the Reply To information for an email.
*
* @since 3.2.0
*
* @param array $emails Reply To email addresses.
*/
public function set_reply_to( $emails ) {
if ( empty( $emails ) ) {
return;
}
$data = [];
foreach ( $emails as $email ) {
$addr = isset( $email[0] ) ? $email[0] : false;
if ( ! filter_var( $addr, FILTER_VALIDATE_EMAIL ) ) {
continue;
}
$data[] = $this->phpmailer->addrFormat( $email );
}
if ( ! empty( $data ) ) {
$this->set_body_param(
[
'content' => [
'reply_to' => implode( ',', $data ),
],
]
);
}
}
/**
* Set email subject.
*
* @since 3.2.0
*
* @param string $subject Email subject.
*/
public function set_subject( $subject ) {
$this->set_body_param(
[
'content' => [
'subject' => $subject,
],
]
);
}
/**
* Set email content.
*
* @since 3.2.0
*
* @param string|array $content Email content.
*/
public function set_content( $content ) {
if ( empty( $content ) ) {
return;
}
if ( is_array( $content ) ) {
if ( ! empty( $content['text'] ) ) {
$this->set_body_param(
[
'content' => [
'text' => $content['text'],
],
]
);
}
if ( ! empty( $content['html'] ) ) {
$this->set_body_param(
[
'content' => [
'html' => $content['html'],
],
]
);
}
} else {
if ( $this->phpmailer->ContentType === 'text/plain' ) {
$this->set_body_param(
[
'content' => [
'text' => $content,
],
]
);
} else {
$this->set_body_param(
[
'content' => [
'html' => $content,
],
]
);
}
}
}
/**
* Set attachments for an email.
*
* @since 3.2.0
*
* @param array $attachments Attachments array.
*/
public function set_attachments( $attachments ) {
if ( empty( $attachments ) ) {
return;
}
$data = $this->prepare_attachments( $attachments );
if ( ! empty( $data ) ) {
$this->set_body_param(
[
'content' => [
'attachments' => $data,
],
]
);
}
}
/**
* Prepare attachments data for SparkPost API.
*
* @since 3.2.0
*
* @param array $attachments Array of attachments.
*
* @return array
*/
protected function prepare_attachments( $attachments ) {
$data = [];
foreach ( $attachments as $attachment ) {
$file = $this->get_attachment_file_content( $attachment );
if ( $file === false ) {
continue;
}
$data[] = [
'name' => $this->get_attachment_file_name( $attachment ),
'data' => base64_encode( $file ), // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
'type' => $attachment[4],
];
}
return $data;
}
/**
* Doesn't support this.
* Return path can be configured in SparkPost account.
*
* @since 3.2.0
*
* @param string $email Return Path email address.
*/
public function set_return_path( $email ) { }
/**
* Redefine the way email body is returned.
* By default, we are sending an array of data.
* SparkPost requires a JSON, so we encode the body.
*
* @since 3.2.0
*/
public function get_body() {
$body = parent::get_body();
return wp_json_encode( $body );
}
/**
* We might need to do something after the email was sent to the API.
* In this method we preprocess the response from the API.
*
* @since 3.2.0
*
* @param mixed $response Response data.
*/
protected function process_response( $response ) {
parent::process_response( $response );
if (
! is_wp_error( $response ) &&
! empty( $this->response['body']->results->id )
) {
$this->phpmailer->addCustomHeader( 'X-Msg-ID', $this->response['body']->results->id );
$this->verify_sent_status = true;
}
}
/**
* Get a SparkPost-specific response with a helpful error.
*
* @since 3.2.0
*
* @return string
*/
public function get_response_error() { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.TooHigh, Generic.Metrics.NestingLevel.MaxExceeded
$error_text[] = $this->error_message;
if ( ! empty( $this->response ) ) {
$body = wp_remote_retrieve_body( $this->response );
if ( ! empty( $body->errors ) && is_array( $body->errors ) ) {
foreach ( $body->errors as $error ) {
if ( ! empty( $error->message ) ) {
$message = $error->message;
$code = ! empty( $error->code ) ? $error->code : '';
$description = ! empty( $error->description ) ? $error->description : '';
$error_text[] = Helpers::format_error_message( $message, $code, $description );
}
}
} else {
$error_text[] = WP::wp_remote_get_response_error_message( $this->response );
}
}
return implode( WP::EOL, array_map( 'esc_textarea', array_filter( $error_text ) ) );
}
/**
* Get mailer debug information, that is helpful during support.
*
* @since 3.2.0
*
* @return string
*/
public function get_debug_info() {
$options = $this->connection_options->get_group( $this->mailer );
$text[] = '<strong>' . esc_html__( 'API Key:', 'wp-mail-smtp' ) . '</strong> ' .
( ! empty( $options['api_key'] ) ? 'Yes' : 'No' );
$text[] = '<strong>' . esc_html__( 'Region:', 'wp-mail-smtp' ) . '</strong> ' .
( ! empty( $options['region'] ) ? 'Yes' : 'No' );
return implode( '<br>', $text );
}
/**
* Whether the mailer has all its settings correctly set up and saved.
*
* This mailer is configured when `api_key` setting is defined.
*
* @since 3.2.0
*
* @return bool
*/
public function is_mailer_complete() {
$options = $this->connection_options->get_group( $this->mailer );
if ( ! empty( $options['api_key'] ) ) {
return true;
}
return false;
}
/**
* Build recipient array.
*
* @since 3.2.0
*
* @param array $address Email address array.
* @param string $header_to Email recipients To header.
*
* @return array
*/
private function build_recipient( $address, $header_to ) {
$holder = [];
$holder['email'] = $address[0];
if ( ! empty( $address[1] ) ) {
$holder['name'] = $address[1];
}
if ( ! empty( $header_to ) ) {
$holder['header_to'] = $header_to;
unset( $holder['name'] );
}
return $holder;
}
/**
* Sanitize email header values.
*
* @param string $name Name of the header.
* @param string $value Value of the header.
*
* @since 3.11.1
*/
public function sanitize_header_value( $name, $value ) {
if (
in_array(
strtolower( $name ),
[
'message-id',
'cc',
],
true
)
) {
return $value;
}
return parent::sanitize_header_value( $name, $value );
}
}