Files
piratepoet/lib/Mailer/API/AmazonSES.php
MrCasual e370e4b4c8 - Refactors mailer classes and tests
- Updates Newsletter router to send to multiple recipients
2015-10-12 08:08:08 -04:00

108 lines
3.3 KiB
PHP

<?php
namespace MailPoet\Mailer\API;
if(!defined('ABSPATH')) exit;
class AmazonSES {
function __construct($region, $accessKey, $secretKey, $from) {
$this->awsAccessKey = $accessKey;
$this->awsSecret_key = $secretKey;
$this->awsRegion = $region;
$this->awsEndpoint = sprintf('email.%s.amazonaws.com', $region);
$this->awsSigningAlgorithm = 'AWS4-HMAC-SHA256';
$this->awsService = 'ses';
$this->awsTerminationString = 'aws4_request';
$this->hashAlgorithm = 'sha256';
$this->url = 'https://' . $this->awsEndpoint;
$this->from = $from;
$this->date = gmdate('Ymd\THis\Z');
$this->dateWithoutTime = gmdate('Ymd');
}
function send($newsletter, $subscriber) {
$result = wp_remote_post(
$this->url,
$this->request($newsletter, $subscriber)
);
return (
!is_wp_error($result) === true &&
wp_remote_retrieve_response_code($result) === 200
);
}
function getBody($newsletter, $subscriber) {
return array(
'Action' => 'SendEmail',
'Version' => '2010-12-01',
'Source' => $this->from,
'Destination.ToAddresses.member.1' => $subscriber,
'Message.Subject.Data' => $newsletter['subject'],
'Message.Body.Html.Data' => $newsletter['body']['html'],
'Message.Body.Text.Data' => $newsletter['body']['text'],
'ReturnPath' => $this->from
);
}
function request($newsletter, $subscriber) {
$body = $this->getBody($newsletter, $subscriber);
return array(
'timeout' => 10,
'httpversion' => '1.1',
'method' => 'POST',
'headers' => array(
'Host' => $this->awsEndpoint,
'Authorization' => $this->signRequest($body),
'X-Amz-Date' => $this->date
),
'body' => urldecode(http_build_query($body))
);
}
function signRequest($body) {
$stringToSign = $this->createStringToSign(
$this->getCredentialScope(),
$this->getCanonicalRequest($body)
);
$signature = hash_hmac($this->hashAlgorithm, $stringToSign, $this->getSigningKey());
return sprintf(
'%s Credential=%s/%s, SignedHeaders=host;x-amz-date, Signature=%s',
$this->awsSigningAlgorithm,
$this->awsAccessKey,
$this->getCredentialScope(),
$signature);
}
function getCredentialScope() {
return sprintf('%s/%s/%s/%s', $this->dateWithoutTime, $this->awsRegion, $this->awsService, $this->awsTerminationString);
}
function getCanonicalRequest($body) {
return implode("\n", array(
'POST',
'/',
'',
'host:' . $this->awsEndpoint,
'x-amz-date:' . $this->date,
'',
'host;x-amz-date',
hash($this->hashAlgorithm, urldecode(http_build_query($body)))
));
}
function createStringToSign($credentialScope, $canonicalRequest) {
return implode("\n", array(
$this->awsSigningAlgorithm,
$this->date,
$credentialScope,
hash($this->hashAlgorithm, $canonicalRequest)
));
}
function getSigningKey() {
$dateKey = hash_hmac($this->hashAlgorithm, $this->dateWithoutTime, 'AWS4' . $this->awsSecret_key, true);
$regionKey = hash_hmac($this->hashAlgorithm, $this->awsRegion, $dateKey, true);
$serviceKey = hash_hmac($this->hashAlgorithm, $this->awsService, $regionKey, true);
return hash_hmac($this->hashAlgorithm, $this->awsTerminationString, $serviceKey, true);
}
}