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<?php
if (! class_exists ( "PostmanSendGridMailEngine" )) {
require_once 'sendgrid-php-3.2.0/sendgrid-php.php';
/**
* Sends mail with the SendGrid API
* https://sendgrid.com/docs/API_Reference/Web_API/mail.html
*
* @author jasonhendriks
*
*/
class PostmanSendGridMailEngine implements PostmanMailEngine {
// logger for all concrete classes - populate with setLogger($logger)
protected $logger;
// the result
private $transcript;
//
private $email;
private $apiKey;
/**
*
* @param unknown $senderEmail
* @param unknown $accessToken
*/
function __construct($apiKey) {
assert ( ! empty ( $apiKey ) );
$this->apiKey = $apiKey;
// create the logger
$this->logger = new PostmanLogger ( get_class ( $this ) );
// create the Message
$this->email = new SendGrid\Email ();
}
/**
* (non-PHPdoc)
*
* @see PostmanSmtpEngine::send()
*/
public function send(PostmanMessage $message) {
$options = PostmanOptions::getInstance ();
// add the Postman signature - append it to whatever the user may have set
if (! $options->isStealthModeEnabled ()) {
$pluginData = apply_filters ( 'postman_get_plugin_metadata', null );
$this->email->addHeader ( 'X-Mailer', sprintf ( 'Postman SMTP %s for WordPress (%s)', $pluginData ['version'], 'https://wordpress.org/plugins/postman-smtp/' ) );
}
// add the headers - see http://framework.zend.com/manual/1.12/en/zend.mail.additional-headers.html
foreach ( ( array ) $message->getHeaders () as $header ) {
$this->logger->debug ( sprintf ( 'Adding user header %s=%s', $header ['name'], $header ['content'] ) );
$this->email->addHeader ( $header ['name'], $header ['content'] );
}
// if the caller set a Content-Type header, use it
$contentType = $message->getContentType ();
if (! empty ( $contentType )) {
$this->logger->debug ( 'Adding content-type ' . $contentType );
$this->email->addHeader ( 'Content-Type', $contentType );
}
// add the From Header
$sender = $message->getFromAddress ();
{
$senderEmail = $sender->getEmail ();
$senderName = $sender->getName ();
assert ( ! empty ( $senderEmail ) );
$this->email->setFrom ( $senderEmail );
if (! empty ( $senderName )) {
$this->email->setFromName ( $senderName );
}
// now log it
$sender->log ( $this->logger, 'From' );
}
// add the Sender Header, overriding what the user may have set
$this->email->addHeader ( 'Sender', $options->getEnvelopeSender () );
// add the to recipients
foreach ( ( array ) $message->getToRecipients () as $recipient ) {
$recipient->log ( $this->logger, 'To' );
$this->email->addTo ( $recipient->getEmail (), $recipient->getName () );
}
// add the cc recipients
foreach ( ( array ) $message->getCcRecipients () as $recipient ) {
$recipient->log ( $this->logger, 'Cc' );
$this->email->addCc ( $recipient->getEmail (), $recipient->getName () );
}
// add the bcc recipients
foreach ( ( array ) $message->getBccRecipients () as $recipient ) {
$recipient->log ( $this->logger, 'Bcc' );
$this->email->addBcc ( $recipient->getEmail (), $recipient->getName () );
}
// add the reply-to
$replyTo = $message->getReplyTo ();
// $replyTo is null or a PostmanEmailAddress object
if (isset ( $replyTo )) {
$this->email->setReplyTo ( $replyTo->format () );
}
// add the date
$date = $message->getDate ();
if (! empty ( $date )) {
$this->email->setDate ( $message->getDate () );
}
// add the messageId
$messageId = $message->getMessageId ();
if (! empty ( $messageId )) {
$this->email->addHeader ( 'message-id', $messageId );
}
// add the subject
if (null !== $message->getSubject ()) {
$this->email->setSubject ( $message->getSubject () );
}
// add the message content
{
$textPart = $message->getBodyTextPart ();
if (! empty ( $textPart )) {
$this->logger->debug ( 'Adding body as text' );
$this->email->setText ( $textPart );
}
$htmlPart = $message->getBodyHtmlPart ();
if (! empty ( $htmlPart )) {
$this->logger->debug ( 'Adding body as html' );
$this->email->setHtml ( $htmlPart );
}
}
// add attachments
$this->logger->debug ( "Adding attachments" );
$this->addAttachmentsToMail ( $message );
$result = array ();
try {
if ($this->logger->isDebug ()) {
$this->logger->debug ( "Creating SendGrid service with apiKey=" . $this->apiKey );
}
$sendgrid = new SendGrid ( $this->apiKey );
// send the message
if ($this->logger->isDebug ()) {
$this->logger->debug ( "Sending mail" );
}
$result = $sendgrid->send ( $this->email );
if ($this->logger->isInfo ()) {
$this->logger->info ( );
}
$this->transcript = print_r ( $result, true );
$this->transcript .= PostmanModuleTransport::RAW_MESSAGE_FOLLOWS;
$this->transcript .= print_r ( $this->email, true );
} catch ( SendGrid\Exception $e ) {
$this->transcript = $e->getMessage ();
$this->transcript .= PostmanModuleTransport::RAW_MESSAGE_FOLLOWS;
$this->transcript .= print_r ( $this->email, true );
throw $e;
}
}
/**
* Add attachments to the message
*
* @param Postman_Zend_Mail $mail
*/
private function addAttachmentsToMail(PostmanMessage $message) {
$attachments = $message->getAttachments ();
if (! is_array ( $attachments )) {
// WordPress may a single filename or a newline-delimited string list of multiple filenames
$attArray = explode ( PHP_EOL, $attachments );
} else {
$attArray = $attachments;
}
// otherwise WordPress sends an array
foreach ( $attArray as $file ) {
if (! empty ( $file )) {
$this->logger->debug ( "Adding attachment: " . $file );
$this->email->addAttachment ( basename ( $file ) );
}
}
}
// return the SMTP session transcript
public function getTranscript() {
return $this->transcript;
}
}
}
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