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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/post-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( $file );
}
}
}
// return the SMTP session transcript
public function getTranscript() {
return $this->transcript;
}
}
}
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