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<?php
/**
* Class GOSMTP_Mailer_Mailgun.
*
* @since 1.0.0
*/
namespace GOSMTP\Mailer;
use GOSMTP\Mailer\Loader;
class Mailgun extends Loader{
var $title = 'Mailgun';
const API_URL_US = 'https://api.mailgun.net/v3/';
const API_URL_EU = 'https://api.eu.mailgun.net/v3/';
var $url = '';
var $mailer = 'mailgun';
public function send(){
global $phpmailer;
$phpmailer->isMail();
if ($phpmailer->preSend()) {
$this->set_API_Url();
$response = $this->postSend();
return $this->handle_response( $response );
}
return $this->handle_response(new \WP_Error(400, 'Unable to send mail for some reason!', []));
}
public function postSend(){
global $phpmailer;
$content_type = $phpmailer->ContentType;
$reply_to = $phpmailer->getReplyToAddresses();
$body = [
'from' => $phpmailer->From,
'subject' => $phpmailer->Subject,
'h:X-Mailer' => 'GOSMTPMailer - Mailgun',
'h:Content-Type' => $content_type
];
if(stripos($content_type, 'html') === false){
$body['text'] = $phpmailer->Body;
}else{
$body['html'] = $phpmailer->Body;
}
if(!empty($reply_to)){
$body['h:Reply-To'] = $reply_to;
}
$recipients = [
'to' => $this->getRecipients($phpmailer->getToAddresses()),
'cc' => $this->getRecipients($phpmailer->getCcAddresses()),
'bcc' => $this->getRecipients($phpmailer->getBccAddresses())
];
if ($recipients = array_filter($recipients)) {
$body = array_merge($body, $recipients);
}
$timeout = (int) ini_get( 'max_execution_time' );
$params = array(
'headers' => array(
'Authorization' => 'Basic ' . base64_encode('api:' . $this->getOption('api_key', $this->mailer))
),
'body' => $body,
'timeout' => $timeout ? $timeout : 30,
'httpversion' => '1.1',
'blocking' => true
);
$attachments = $phpmailer->getAttachments();
if(!empty($attachments)){
$params = $this->getAttachments($params);
}
$response = wp_safe_remote_post($this->url, $params);
if (is_wp_error($response)) {
$returnResponse = new \WP_Error($response->get_error_code(), $response->get_error_message(), $response->get_error_messages());
} else {
$responseBody = wp_remote_retrieve_body($response);
$responseCode = wp_remote_retrieve_response_code($response);
$isOKCode = $responseCode == 200;
if($isOKCode) {
$responseBody = \json_decode($responseBody, true);
}
if($isOKCode && isset($responseBody['id'])) {
$returnResponse = [
'status' => true,
'code' => $responseCode,
'messageId' => $responseBody['id'],
'message' => $responseBody['message'],
];
}else{
if(!empty( $responseBody['message'])){
$error_text[] = $this->message_formatting( $responseBody['message'] );
} else {
$error_text[] = $this->get_response_error_message($response);
}
$error_msg = implode( '\r\n', array_map( 'esc_textarea', array_filter( $error_text ) ) );
$returnResponse = new \WP_Error($responseCode, $error_msg, $responseBody);
}
}
return $returnResponse;
}
public function getRecipients($recipient){
$recipients = $this->filterRecipientsArray($recipient);
$array = array_map(function($recipient){
return isset($recipient['name'])
? $recipient['name'] . ' <' . $recipient['address'] . '>'
: $recipient['address'];
}, $recipients);
return implode(', ', $array);
}
public function getAttachments($params){
global $phpmailer;
$data = [];
$payload = '';
$attachments = $phpmailer->getAttachments();
foreach($attachments as $attachment){
$file = false;
try{
if (is_file($attachment[0]) && is_readable($attachment[0])) {
$fileName = basename($attachment[0]);
$file = file_get_contents($attachment[0]);
}
}catch(\Exception $e){
$file = false;
}
if($file === false){
continue;
}
$data[] = [
'content' => $file,
'name' => $fileName,
];
}
if(!empty($data)){
$boundary = hash('sha256', uniqid('', true));
foreach($params['body'] as $key => $value){
if(is_array($value)){
foreach($value as $child_key => $child_value){
$payload .= '--' . $boundary;
$payload .= "\r\n";
$payload .= 'Content-Disposition: form-data; name="' . $key . "\"\r\n\r\n";
$payload .= $child_value;
$payload .= "\r\n";
}
}else{
$payload .= '--' . $boundary;
$payload .= "\r\n";
$payload .= 'Content-Disposition: form-data; name="' . $key . '"' . "\r\n\r\n";
$payload .= $value;
$payload .= "\r\n";
}
}
foreach($data as $key => $attachment){
$payload .= '--' . $boundary;
$payload .= "\r\n";
$payload .= 'Content-Disposition: form-data; name="attachment[' . $key . ']"; filename="' . $attachment['name'] . '"' . "\r\n\r\n";
$payload .= $attachment['content'];
$payload .= "\r\n";
}
$payload .= '--' . $boundary . '--';
$params['body'] = $payload;
$params['headers']['Content-Type'] = 'multipart/form-data; boundary=' . $boundary;
}
return $params;
}
public function set_API_Url(){
$url = self::API_URL_US;
if($this->getOption('region', $this->mailer) == 'eu'){
$url = self::API_URL_EU;
}
$url .= sanitize_text_field($this->getOption('domain_name', $this->mailer) . '/messages');
return $this->url = $url;
}
public function load_field(){
$fields = array(
'api_key' => array(
'title' => __('Private API Key'),
'type' => 'password',
'desc' => __( 'Follow this link to get a Private API Key from Mailgun: <a href="https://app.mailgun.com/app/account/security/api_keys" target="_blank">Get a Private API Key.</a>' ),
),
'domain_name' => array(
'title' => __('Domain Name'),
'type' => 'text',
'desc' => __( 'Follow this link to get a Domain Name from Mailgun: <a href="https://app.mailgun.com/app/domains" target="_blank">Get a Domain Name.</a>' ),
),
'region' => array(
'title' => __('Region'),
'type' => 'radio',
'class' => 'regular-text',
'list' => array(
'us' => 'US',
'eu' => 'EU',
),
'desc' => __( 'Define which endpoint you want to use for sending messages.<br>If you are operating under EU laws, you may be required to use EU region. <a href="https://www.mailgun.com/about/regions/" target="_blank">More information</a> on Mailgun.com.' ),
),
);
return $fields;
}
}