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/home/nshryvcy/himaltourism.com/wp-content/plugins/mailpoet/lib/Mailer/Methods/AmazonSES.php

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<?php declare(strict_types = 1);

namespace MailPoet\Mailer\Methods;

if (!defined('ABSPATH')) exit;

use MailPoet\Mailer\Mailer;
use MailPoet\Mailer\Methods\Common\BlacklistCheck;
use MailPoet\Mailer\Methods\ErrorMappers\AmazonSESMapper;
use MailPoet\WP\Functions as WPFunctions;
use PHPMailer\PHPMailer\PHPMailer;

class AmazonSES extends PHPMailerMethod {
  /** @var string */
  public $awsAccessKey;
  /** @var string */
  public $awsSecretKey;
  /** @var string */
  public $awsRegion;
  /** @var string */
  public $awsEndpoint;
  /** @var string */
  public $awsSigningAlgorithm;
  /** @var string */
  public $awsService;
  /** @var string */
  public $awsTerminationString;
  /** @var string */
  public $hashAlgorithm;
  /** @var string */
  public $url;
  /** @var string */
  public $rawMessage;
  /** @var string */
  public $date;
  /** @var string */
  public $dateWithoutTime;
  /** @var string[] */
  private $availableRegions = [
    'US East (N. Virginia)' => 'us-east-1',
    'US East (Ohio)' => 'us-east-2',
    'US West (N. California)' => 'us-west-1',
    'US West (Oregon)' => 'us-west-2',
    'EU (Ireland)' => 'eu-west-1',
    'EU (London)' => 'eu-west-2',
    'EU (Paris)' => 'eu-west-3',
    'EU (Milan)' => 'eu-south-1',
    'EU (Frankfurt)' => 'eu-central-1',
    'EU (Stockholm)' => 'eu-north-1',
    'Canada (Central)' => 'ca-central-1',
    'China (Beijing)' => 'cn-north-1',
    'China (Ningxia)' => 'cn-northwest-1',
    'Africa (Cape Town)' => 'af-south-1',
    'Asia Pacific (Hong Kong)' => 'ap-east-1',
    'Asia Pacific (Jakarta)' => 'ap-southeast-3',
    'Asia Pacific (Mumbai)' => 'ap-south-1',
    'Asia Pacific (Seoul)' => 'ap-northeast-2',
    'Asia Pacific (Osaka)' => 'ap-northeast-3',
    'Asia Pacific (Singapore)' => 'ap-southeast-1',
    'Asia Pacific (Sydney)' => 'ap-southeast-2',
    'Asia Pacific (Tokyo)' => 'ap-northeast-1',
    'Middle East (Bahrain)' => 'me-south-1',
    'South America (Sao Paulo)' => 'sa-east-1',
    'AWS GovCloud (US)' => 'us-gov-west-1',
  ];
  /** @var AmazonSESMapper */
  protected $errorMapper;
  /** @var WPFunctions */
  protected $wp;

public function __construct(
    $region,
    $accessKey,
    $secretKey,
    $sender,
    $replyTo,
    $returnPath,
    AmazonSESMapper $errorMapper,
    WPFunctions $wp
  ) {
    $this->awsAccessKey = $accessKey;
    $this->awsSecretKey = $secretKey;
    $this->awsRegion = (in_array($region, $this->availableRegions)) ? $region : false;
    if (!$this->awsRegion) {
      throw new \Exception(__('Unsupported Amazon SES region', 'mailpoet'));
    }
    $this->awsEndpoint = sprintf('email.%s.amazonaws.com', $this->awsRegion);
    $this->awsSigningAlgorithm = 'AWS4-HMAC-SHA256';
    $this->awsService = 'ses';
    $this->awsTerminationString = 'aws4_request';
    $this->hashAlgorithm = 'sha256';
    $this->url = 'https://' . $this->awsEndpoint;
    $this->sender = $sender;
    $this->replyTo = $replyTo;
    $this->returnPath = $returnPath;
    $this->date = gmdate('Ymd\THis\Z');
    $this->dateWithoutTime = gmdate('Ymd');
    $this->errorMapper = $errorMapper;
    $this->wp = $wp;
    $this->blacklist = new BlacklistCheck();
    $this->mailer = $this->buildMailer();
  }

public function send($newsletter, $subscriber, $extraParams = []): array {
    if ($this->blacklist->isBlacklisted($subscriber)) {
      $error = $this->errorMapper->getBlacklistError($subscriber);
      return Mailer::formatMailerErrorResult($error);
    }
    try {
      $result = $this->wp->wpRemotePost(
        $this->url,
        $this->request($newsletter, $subscriber, $extraParams)
      );
    } catch (\Exception $e) {
      $error = $this->errorMapper->getErrorFromException($e, $subscriber);
      return Mailer::formatMailerErrorResult($error);
    }
    if (is_wp_error($result)) {
      $error = $this->errorMapper->getConnectionError($result->get_error_message());
      return Mailer::formatMailerErrorResult($error);
    }
    if ($this->wp->wpRemoteRetrieveResponseCode($result) !== 200) {
      $response = simplexml_load_string($this->wp->wpRemoteRetrieveBody($result));
      $error = $this->errorMapper->getErrorFromResponse($response, $subscriber);
      return Mailer::formatMailerErrorResult($error);
    }
    return Mailer::formatMailerSendSuccessResult();
  }

public function buildMailer(): PHPMailer {
    return new PHPMailer(true);
  }

public function getBody($newsletter, $subscriber, $extraParams = []) {
    /* Configure mailer and call preSend() method to prepare message */
    $mailer = $this->configureMailerWithMessage($newsletter, $subscriber, $extraParams);
    $mailer->preSend();
    /* When message is prepared, we can get the raw message */
    $this->rawMessage = $mailer->getSentMIMEMessage();
    return [
      'Action' => 'SendRawEmail',
      'Version' => '2010-12-01',
      'Source' => $this->sender['from_name_email'],
      'RawMessage.Data' => $this->encodeMessage($this->rawMessage),
    ];
  }

public function encodeMessage(string $message) {
    return base64_encode($message);
  }

public function request($newsletter, $subscriber, $extraParams = []) {
    $body = array_map('urlencode', $this->getBody($newsletter, $subscriber, $extraParams));
    return [
      'timeout' => 10,
      'httpversion' => '1.1',
      'method' => 'POST',
      'headers' => [
        'Host' => $this->awsEndpoint,
        'Authorization' => $this->signRequest($body),
        'X-Amz-Date' => $this->date,
      ],
      'body' => urldecode(http_build_query($body, '', '&')),
    ];
  }

public 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);
  }

public function getCredentialScope() {
    return sprintf(
      '%s/%s/%s/%s',
      $this->dateWithoutTime,
      $this->awsRegion,
      $this->awsService,
      $this->awsTerminationString);
  }

public function getCanonicalRequest($body) {
    return implode("\n", [
      'POST',
      '/',
      '',
      'host:' . $this->awsEndpoint,
      'x-amz-date:' . $this->date,
      '',
      'host;x-amz-date',
      hash($this->hashAlgorithm, urldecode(http_build_query($body, '', '&'))),
    ]);
  }

public function createStringToSign($credentialScope, $canonicalRequest) {
    return implode("\n", [
      $this->awsSigningAlgorithm,
      $this->date,
      $credentialScope,
      hash($this->hashAlgorithm, $canonicalRequest),
    ]);
  }

public function getSigningKey() {
    $dateKey = hash_hmac(
      $this->hashAlgorithm,
      $this->dateWithoutTime,
      'AWS4' . $this->awsSecretKey,
      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
    );
  }
}

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Name	Size	Perms	Modified	Actions
Common DIR	-	drwxr-xr-x	2023-04-04 05:35:40	Edit Download recursive recursive
ErrorMappers DIR	-	drwxr-xr-x	2023-04-04 05:35:40	Edit Download recursive recursive
AmazonSES.php	7.17 KB	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
index.php	0 B	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
MailerMethod.php	224 B	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
MailPoet.php	5.65 KB	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
PHPMail.php	348 B	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
PHPMailerMethod.php	4.49 KB	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
SendGrid.php	2.97 KB	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive
SMTP.php	3.85 KB	lrw-r--r--	2023-04-04 05:35:40	Edit Download recursive recursive