security-package/issues/179: Not possible to use Email notification channel. Exception and blank page.

NotifierEmailAdapter/Model/AdapterEngine/Email.php

@@ -9,8 +9,12 @@
 namespace Magento\NotifierEmailAdapter\Model\AdapterEngine;
 
 use Magento\Framework\Exception\MailException;
-use Magento\Framework\Mail\MailMessageInterface;
-use Magento\Framework\Mail\MailMessageInterfaceFactory;
+use Magento\Framework\Mail\AddressConverter;
+use Magento\Framework\Mail\EmailMessageInterfaceFactory;
+use Magento\Framework\Mail\MimeInterface;
+use Magento\Framework\Mail\MimeMessageInterface;
+use Magento\Framework\Mail\MimeMessageInterfaceFactory;
+use Magento\Framework\Mail\MimePartInterfaceFactory;
 use Magento\Framework\Mail\TransportInterfaceFactory;
 use Magento\NotifierApi\Model\AdapterEngine\AdapterEngineInterface;
 
@@ -37,26 +41,50 @@ class Email implements AdapterEngineInterface
     private const ADAPTER_TO = 'to';
 
     /**
-     * @var MailMessageInterfaceFactory
+     * @var EmailMessageInterfaceFactory
      */
-    private $mailMessageFactory;
+    private $emailMessageFactory;
 
     /**
      * @var TransportInterfaceFactory
      */
     private $transportFactory;
 
     /**
-     * @param MailMessageInterfaceFactory $messageFactory
+     * @var MimePartInterfaceFactory
+     */
+    private $mimePartInterfaceFactory;
+
+    /**
+     * @var MimeMessageInterfaceFactory
+     */
+    private $mimeMessageFactory;
+
+    /**
+     * @var AddressConverter
+     */
+    private $addressConverter;
+
+    /**
+     * @param EmailMessageInterfaceFactory $emailMessageFactory
+     * @param MimePartInterfaceFactory $mimePartInterfaceFactory
+     * @param MimeMessageInterfaceFactory $mimeMessageFactory
+     * @param AddressConverter $addressConverter
      * @param TransportInterfaceFactory $transportFactory
      * @SuppressWarnings(PHPMD.LongVariables)
      */
     public function __construct(
-        MailMessageInterfaceFactory $messageFactory,
+        EmailMessageInterfaceFactory $emailMessageFactory,
+        MimePartInterfaceFactory $mimePartInterfaceFactory,
+        MimeMessageInterfaceFactory $mimeMessageFactory,
+        AddressConverter $addressConverter,
         TransportInterfaceFactory $transportFactory
     ) {
-        $this->mailMessageFactory = $messageFactory;
+        $this->emailMessageFactory = $emailMessageFactory;
         $this->transportFactory = $transportFactory;
+        $this->mimePartInterfaceFactory = $mimePartInterfaceFactory;
+        $this->mimeMessageFactory = $mimeMessageFactory;
+        $this->addressConverter = $addressConverter;
     }
 
     /**
@@ -70,18 +98,43 @@ public function __construct(
     public function execute(string $message, array $configParams = [], array $params = []): bool
     {
         $lines = explode("\n", $message);
+        $to = preg_split('/\s+/', $configParams[self::ADAPTER_TO]);
 
-        /** @var MailMessageInterface $emailMessage */
-        $emailMessage = $this->mailMessageFactory->create();
+        $emailMessage = $this->emailMessageFactory->create(
+            [
+                'body' => $this->createMimeMessage($message),
+                'to' => $this->addressConverter->convertMany($to),
+            ]
+        );
 
         $emailMessage->setFromAddress($configParams[self::ADAPTER_FROM], $configParams[self::ADAPTER_FROM_NAME]);
-        $emailMessage->addTo($configParams[self::ADAPTER_TO]);
-        $emailMessage->setBodyText($message);
         $emailMessage->setSubject($lines[0]);
 
         $transport = $this->transportFactory->create(['message' => $emailMessage]);
         $transport->sendMessage();
 
         return true;
     }
+
+    /**
+     * Create mime message.
+     *
+     * @param string $message
+     * @return MimeMessageInterface
+     */
+    private function createMimeMessage(string $message): MimeMessageInterface
+    {
+        $mimePart = $this->mimePartInterfaceFactory->create(
+            [
+                'content' => $message,
+                'type' => MimeInterface::TYPE_TEXT
+            ]
+        );
+
+        return $this->mimeMessageFactory->create(
+            [
+                'parts' => [$mimePart]
+            ]
+        );
+    }
 }