From 38300a2145dae325a90333e2728044f996ea014a Mon Sep 17 00:00:00 2001
From: Filippo Tessarotto <zoeslam@gmail.com>
Date: Thu, 28 Sep 2017 16:06:49 +0200
Subject: [PATCH] Add imap_fetchheader() functionality

---
 src/Message.php       | 15 +++++++++++++++
 tests/MessageTest.php | 17 +++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/src/Message.php b/src/Message.php
index cc4a1484..f45eed14 100644
--- a/src/Message.php
+++ b/src/Message.php
@@ -15,6 +15,7 @@
 class Message extends Message\Part
 {
     private $headers;
+    private $rawHeaders;
     private $attachments;
 
     /**
@@ -235,6 +236,20 @@ public function getHeaders(): Message\Headers
         return $this->headers;
     }
 
+    /**
+     * Get raw message headers
+     *
+     * @return string
+     */
+    public function getRawHeaders(): string
+    {
+        if (null === $this->rawHeaders) {
+            $this->rawHeaders = imap_fetchheader($this->stream, $this->messageNumber, \FT_UID);
+        }
+
+        return $this->rawHeaders;
+    }
+
     /**
      * Get body HTML
      *
diff --git a/tests/MessageTest.php b/tests/MessageTest.php
index 8d32b8ba..43429841 100644
--- a/tests/MessageTest.php
+++ b/tests/MessageTest.php
@@ -313,4 +313,21 @@ public function provideDateCases(): array
             ['2006-01-04T21:47:28+0000', 'WED 04, JAN 2006 21:47:28'],
         ];
     }
+
+    public function testRawHeaders()
+    {
+        $headers = 'From: from@there.com' . "\r\n"
+            . 'To: to@here.com' . "\n"
+             . "\r\n"
+        ;
+        $originalMessage = $headers . 'Content' . "\n";
+
+        $this->mailbox->addMessage($originalMessage);
+        $message = $this->mailbox->getMessage(1);
+
+        $expectedHeaders = preg_split('/\R/u', $headers);
+        $expectedHeaders = implode("\r\n", $expectedHeaders);
+
+        $this->assertSame($expectedHeaders, $message->getRawHeaders());
+    }
 }