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wp-content/plugins/mailpoet/lib/Mailer/Methods/SMTP.php

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+<?php declare(strict_types = 1);
+
+namespace MailPoet\Mailer\Methods;
+
+if (!defined('ABSPATH')) exit;
+
+
+use MailPoet\Mailer\Methods\ErrorMappers\SMTPMapper;
+use MailPoet\RuntimeException;
+use MailPoet\Util\Url;
+use MailPoet\WP\Functions as WPFunctions;
+use PHPMailer\PHPMailer\PHPMailer;
+
+class SMTP extends PHPMailerMethod {
+  const SMTP_CONNECTION_TIMEOUT = 15; // seconds
+
+  /** @var string */
+  public $host;
+  /** @var int */
+  public $port;
+  /** @var int */
+  public $authentication;
+  /** @var string  */
+  public $login;
+  /** @var string */
+  public $password;
+  /** @var string */
+  public $encryption;
+  /** @var PHPMailer */
+  public $mailer;
+  /** @var WPFunctions */
+  protected $wp;
+
+  public function __construct(
+    $host,
+    $port,
+    $authentication,
+    $encryption,
+    $sender,
+    $replyTo,
+    $returnPath,
+    SMTPMapper $errorMapper,
+    Url $urlUtils,
+    $login = null,
+    $password = null
+  ) {
+    $this->wp = new WPFunctions;
+    $this->host = $host;
+    $this->port = $port;
+    $this->authentication = $authentication;
+    $this->login = $login;
+    $this->password = $password;
+    $this->encryption = $encryption;
+    parent::__construct($sender, $replyTo, $returnPath, $errorMapper, $urlUtils);
+  }
+
+  public function buildMailer(): PHPMailer {
+    $mailer = new PHPMailer(true);
+    $mailer->isSMTP();
+    /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+    $mailer->Host = $this->wp->applyFilters('mailpoet_mailer_smtp_host', $this->host); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+    $mailer->Port = $this->wp->applyFilters('mailpoet_mailer_smtp_port', $this->port); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+    $mailer->SMTPSecure = $this->wp->applyFilters('mailpoet_mailer_smtp_encryption', $this->encryption);
+    /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+    $mailer->SMTPOptions = $this->wp->applyFilters('mailpoet_mailer_smtp_options', []);
+    /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+    $mailer->Timeout = $this->wp->applyFilters('mailpoet_mailer_smtp_connection_timeout', self::SMTP_CONNECTION_TIMEOUT); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+
+    if ($this->authentication === 1) {
+      $mailer->SMTPAuth = true; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      $mailer->Username = $this->login; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      $mailer->Password = $this->password; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    }
+
+    // values from filters can overwrite username and password
+    $filterUsername = $this->wp->applyFilters('mailpoet_mailer_smtp_username', null);
+    $filterPassword = $this->wp->applyFilters('mailpoet_mailer_smtp_password', null);
+    if ($filterUsername && $filterPassword) {
+      $mailer->SMTPAuth = true; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+      $mailer->Username = $filterUsername; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+      /** @phpstan-ignore-next-line - we cannot annotate the return type from a filter */
+      $mailer->Password = $filterPassword; // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
+    }
+
+    $mailer = $this->wp->applyFilters('mailpoet_mailer_smtp_instance', $mailer);
+    if (!$mailer instanceof PHPMailer) {
+      throw new RuntimeException(__('Filter "mailpoet_mailer_smtp_instance" must return an instance of PHPMailer.', 'mailpoet'));
+    }
+    return $mailer;
+  }
+}