Attachment::getMimeType() and Attachment::getExtension() added

Author: Webklex

README.md

@@ -375,6 +375,8 @@ $oFolder = $aMessage->getContainingFolder();
 | Method         | Arguments                      | Return         | Description                                            |
 | -------------- | ------------------------------ | :------------: | ------------------------------------------------------ |
 | getContent     |                                | string or null | Get attachment content                                 |     
+| getMimeType    |                                | string or null | Get attachment mime type                               |     
+| getExtension   |                                | string or null | Get a guessed attachment extension                     |     
 | getName        |                                | string or null | Get attachment name                                    |        
 | getType        |                                | string or null | Get attachment type                                    |        
 | getDisposition |                                | string or null | Get attachment disposition                             | 

src/IMAP/Attachment.php

@@ -12,6 +12,7 @@
 
 namespace Webklex\IMAP;
 use Illuminate\Support\Facades\File;
+use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser;
 
 /**
  * Class Attachment
@@ -233,4 +234,18 @@ public function getDisposition() {
     public function getImgSrc() {
         return $this->img_src;
     }
+
+    /**
+     * @return string|null
+     */
+    public function getMimeType(){
+        return (new \finfo())->buffer($this->getContent(), FILEINFO_MIME_TYPE);
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getExtension(){
+        return ExtensionGuesser::getInstance()->guess($this->getMimeType());
+    }
 }