Files
piratepoet/lib/Mailer/AmazonSES.php
2015-10-12 08:03:30 -04:00

97 lines
2.8 KiB
PHP

<?php
namespace MailPoet\Mailer;
if(!defined('ABSPATH')) exit;
class AmazonSES {
function __construct($region, $access_key, $secret_key, $from, $to, $newsletter) {
$this->region = $region;
$this->host = sprintf('email.%s.amazonaws.com', $region);
$this->url = 'https://' . $this->host;
$this->access_key = $access_key;
$this->secret_key = $secret_key;
$this->newsletter = $newsletter;
$this->from = $from;
$this->to = $to;
$this->date = gmdate('Ymd\THis\Z');
}
function send() {
$result = wp_remote_post(
$this->url,
$this->request()
);
return ($result['response']['code'] === 200);
}
function getBody() {
$parameters = array(
'Action' => 'SendEmail',
'Version' => '2010-12-01',
'Source' => $this->from,
'Destination.ToAddresses.member.1' => $this->to,
'Message.Subject.Data' => $this->newsletter['subject'],
'Message.Body.Html.Data' => $this->newsletter['body'],
'ReplyToAddresses.member.1' => $this->from,
'ReturnPath' => $this->from
);
return urldecode(http_build_query($parameters));
}
function request() {
return array(
'timeout' => 10,
'httpversion' => '1.1',
'method' => 'POST',
'headers' => array(
'Host' => $this->host,
'Authorization' => $this->signRequest($this->getBody()),
'X-Amz-Date' => $this->date
),
'body' => $this->getBody()
);
}
function signRequest($bodyToSign) {
$requestDate = $this->date;
$requestDateShorted = substr($requestDate, 0, 8);
$awsSigningAlgorithm = 'AWS4-HMAC-SHA256';
$hashAlgorithm = 'sha256';
$service = 'ses';
$type = 'aws4_request';
$scope = sprintf('%s/%s/%s/%s', $requestDateShorted, $this->region, $service, $type);
$requestToSign = array(
'POST',
'/',
'',
'host:' . $this->host,
'x-amz-date:' . $requestDate,
'',
'host;x-amz-date',
hash($hashAlgorithm, $bodyToSign)
);
$requestToSign = implode("\n", $requestToSign);
$stringToSign = array(
$awsSigningAlgorithm,
$requestDate,
$scope,
hash($hashAlgorithm, $requestToSign)
);
$stringToSign = implode("\n", $stringToSign);
$dateKey = hash_hmac($hashAlgorithm, $requestDateShorted, 'AWS4' . $this->secret_key, true);
$regionKey = hash_hmac($hashAlgorithm, $this->region, $dateKey, true);
$serviceKey = hash_hmac($hashAlgorithm, $service, $regionKey, true);
$signingKey = hash_hmac($hashAlgorithm, $type, $serviceKey, true);
$signature = hash_hmac($hashAlgorithm, $stringToSign, $signingKey);
return sprintf(
'%s Credential=%s/%s, SignedHeaders=host;x-amz-date, Signature=%s',
$awsSigningAlgorithm,
$this->access_key,
$scope,
$signature);
}
}