init

wp-content/plugins/mailpoet/lib/Mailer/WordPress/PHPMailerLoader.php

@@ -0,0 +1,23 @@
+<?php declare(strict_types = 1);
+
+namespace MailPoet\Mailer\WordPress;
+
+if (!defined('ABSPATH')) exit;
+
+
+class PHPMailerLoader {
+  /**
+   * Load PHPMailer because is not autoloaded
+   */
+  public static function load(): void {
+    if (!class_exists('PHPMailer\PHPMailer\PHPMailer')) {
+      require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php';
+    }
+    if (!class_exists('PHPMailer\PHPMailer\Exception')) {
+      require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
+    }
+    if (!class_exists('PHPMailer\PHPMailer\SMTP')) {
+      require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
+    }
+  }
+}

wp-content/plugins/mailpoet/lib/Mailer/WordPress/WordPressMailer.php

@@ -0,0 +1,129 @@
+<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing
+
+namespace MailPoet\Mailer\WordPress;
+
+if (!defined('ABSPATH')) exit;
+
+
+use MailPoet\Mailer\MailerFactory;
+use MailPoet\Mailer\MetaInfo;
+use MailPoet\Subscribers\SubscribersRepository;
+use MailPoetVendor\Html2Text\Html2Text;
+use PHPMailer\PHPMailer\Exception as PHPMailerException;
+use PHPMailer\PHPMailer\PHPMailer;
+
+PHPMailerLoader::load();
+
+class WordPressMailer extends PHPMailer {
+  /** @var MailerFactory */
+  private $mailerFactory;
+
+  /** @var MetaInfo */
+  private $mailerMetaInfo;
+
+  /** @var SubscribersRepository */
+  private $subscribersRepository;
+
+  public function __construct(
+    MailerFactory $mailerFactory,
+    MetaInfo $mailerMetaInfo,
+    SubscribersRepository $subscribersRepository
+  ) {
+    parent::__construct(true);
+    $this->mailerFactory = $mailerFactory;
+    $this->mailerMetaInfo = $mailerMetaInfo;
+    $this->subscribersRepository = $subscribersRepository;
+  }
+
+  public function send() {
+    // We need this so that the PHPMailer class will correctly prepare all the headers.
+    $originalMailer = $this->Mailer; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    $this->Mailer = 'mail'; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+
+    // Prepare everything (including the message) for sending.
+    $this->preSend();
+
+    $email = $this->getEmail();
+    $address = $this->formatAddress($this->getToAddresses());
+    $subscriber = $this->subscribersRepository->findOneBy(['email' => $address]);
+    $extraParams = [
+      'meta' => $this->mailerMetaInfo->getWordPressTransactionalMetaInfo($subscriber),
+    ];
+
+    try {
+      // we need to build fresh mailer for every single WP e-mail to make sure reply-to is set
+      $replyTo = $this->getReplyToAddress();
+      $mailer = $this->mailerFactory->buildMailer(null, null, $replyTo);
+      $result = $mailer->send($email, $address, $extraParams);
+      if (!$result['response']) {
+        throw new \Exception($result['error']->getMessage());
+      }
+    } catch (\Exception $ePrimary) {
+      // In case the sending using MailPoet's mailer fails continue with sending using original parent PHPMailer::sent method.
+      // But if anything fails we still want tho throw the error from the primary MailPoet mailer.
+      try {
+        // Restore original settings for mailer. Some sites may use SMTP and we needed to reset it to mail
+        $this->Mailer = $originalMailer; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+        return parent::send();
+      } catch (\Exception $eFallback) {
+        throw new PHPMailerException($ePrimary->getMessage(), $ePrimary->getCode(), $ePrimary);
+      }
+    }
+    return true;
+  }
+
+  private function getEmail() {
+    // phpcs:disable Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    $email = [
+      'subject' => $this->Subject,
+      'body' => [],
+    ];
+
+    if (strpos($this->ContentType, 'text/plain') === 0) {
+      $email['body']['text'] = $this->Body;
+    } elseif (strpos($this->ContentType, 'text/html') === 0) {
+      $text = @Html2Text::convert(strtolower($this->CharSet) === 'utf-8' ? $this->Body : mb_convert_encoding($this->Body, 'UTF-8', mb_list_encodings()));
+      $email['body']['text'] = $text;
+      $email['body']['html'] = $this->Body;
+    } elseif (strpos($this->ContentType, 'multipart/alternative') === 0) {
+      $email['body']['text'] = $this->AltBody;
+      $email['body']['html'] = $this->Body;
+    } else {
+      throw new PHPMailerException('Unsupported email content type has been used. Please use only text or HTML emails.');
+    }
+    return $email;
+    // phpcs:enable
+  }
+
+  private function formatAddress($wordpressAddress) {
+    $data = $wordpressAddress[0];
+    $result = [
+      'address' => $data[0],
+    ];
+    if (!empty($data[1])) {
+      $result['full_name'] = $data[1];
+    }
+    return $result;
+  }
+
+  private function getReplyToAddress(): ?array {
+    $replyToAddress = null;
+    $addresses = $this->getReplyToAddresses();
+
+    if (!empty($addresses)) {
+      // only one reply-to address supported by \MailPoet\Mailer
+      $address = array_shift($addresses);
+      $replyToAddress = [];
+
+      if ($address[1]) {
+        $replyToAddress['name'] = $address[1];
+      }
+
+      if ($address[0]) {
+        $replyToAddress['address'] = $address[0];
+      }
+    }
+
+    return $replyToAddress;
+  }
+}

wp-content/plugins/mailpoet/lib/Mailer/WordPress/WordpressMailerReplacer.php

@@ -0,0 +1,57 @@
+<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing
+
+namespace MailPoet\Mailer\WordPress;
+
+if (!defined('ABSPATH')) exit;
+
+
+use MailPoet\Mailer\MailerFactory;
+use MailPoet\Mailer\MetaInfo;
+use MailPoet\Settings\SettingsController;
+use MailPoet\Subscribers\SubscribersRepository;
+
+class WordpressMailerReplacer {
+
+  /** @var MailerFactory */
+  private $mailerFactory;
+
+  /** @var MetaInfo */
+  private $mailerMetaInfo;
+
+  /** @var SettingsController */
+  private $settings;
+
+  /** @var SubscribersRepository */
+  private $subscribersRepository;
+
+  public function __construct(
+    MailerFactory $mailerFactory,
+    MetaInfo $mailerMetaInfo,
+    SettingsController $settings,
+    SubscribersRepository $subscribersRepository
+  ) {
+    $this->mailerFactory = $mailerFactory;
+    $this->mailerMetaInfo = $mailerMetaInfo;
+    $this->settings = $settings;
+    $this->subscribersRepository = $subscribersRepository;
+  }
+
+  public function replaceWordPressMailer() {
+    global $phpmailer;
+    // This code needs to be wrapped because it has to run in an early stage of plugin initialisation
+    // and in some cases on multisite instance it may run before DB migrator and settings table is not ready at that time
+    try {
+      $sendTransactional = $this->settings->get('send_transactional_emails', false);
+    } catch (\Exception $e) {
+      $sendTransactional = false;
+    }
+    if ($sendTransactional) {
+      $phpmailer = new WordPressMailer(
+        $this->mailerFactory,
+        $this->mailerMetaInfo,
+        $this->subscribersRepository
+      );
+    }
+    return $phpmailer;
+  }
+}

wp-content/plugins/mailpoet/lib/Mailer/WordPress/index.php

@@ -0,0 +1 @@
+<?php