Make sure parsed emails recognize attachments nested in multpart parts (closes #6714)

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6207 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

2 files changed, 108 insertions, 0 deletions

diff --git a/actionmailer/test/fixtures/raw_email_with_nested_attachment b/actionmailer/test/fixtures/raw_email_with_nested_attachment
new file mode 100644
index 0000000000..429c408c5d
--- /dev/null
+++ b/actionmailer/test/fixtures/raw_email_with_nested_attachment
@@ -0,0 +1,100 @@
+From jamis@37signals.com Thu Feb 22 11:20:31 2007
+Mime-Version: 1.0 (Apple Message framework v752.3)
+Message-Id: <2CCE0408-10C7-4045-9B16-A1C11C31469B@37signals.com>
+Content-Type: multipart/signed;
+	micalg=sha1;
+	boundary=Apple-Mail-42-587703407;
+	protocol="application/pkcs7-signature"
+To: Jamis Buck <jamis@jamisbuck.org>
+Subject: Testing attachments
+From: Jamis Buck <jamis@37signals.com>
+Date: Thu, 22 Feb 2007 11:20:31 -0700
+
+
+--Apple-Mail-42-587703407
+Content-Type: multipart/mixed;
+	boundary=Apple-Mail-41-587703287
+
+
+--Apple-Mail-41-587703287
+Content-Transfer-Encoding: 7bit
+Content-Type: text/plain;
+	charset=US-ASCII;
+	format=flowed
+
+Here is a test of an attachment via email.
+
+- Jamis
+
+
+--Apple-Mail-41-587703287
+Content-Transfer-Encoding: base64
+Content-Type: image/png;
+	x-unix-mode=0644;
+	name=byo-ror-cover.png
+Content-Disposition: inline;
+	filename=truncated.png
+
+iVBORw0KGgoAAAANSUhEUgAAAKUAAADXCAYAAAB7wZEQAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz
+AAALEgAACxIB0t1+/AAAABd0RVh0Q3JlYXRpb24gVGltZQAxLzI1LzIwMDeD9CJVAAAAGHRFWHRT
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+ICAgIDxkYzpmb3JtYXQ+aW1hZ2UvcG5nPC9kYzpmb3JtYXQ+CiAgICAgIDwvcmRmOkRlc2NyaXB0
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+Pwc7L68GxvVDAAAAAElFTkSuQmCC
+
+--Apple-Mail-41-587703287--
+
+--Apple-Mail-42-587703407
+Content-Transfer-Encoding: base64
+Content-Type: application/pkcs7-signature;
+	name=smime.p7s
+Content-Disposition: attachment;
+	filename=smime.p7s
+
+MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGJzCCAuAw
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+xPaO0uk4V8xyjNlN4HPuGpkrlXwPAAAAAAAA
+
+--Apple-Mail-42-587703407--
diff --git a/actionmailer/test/tmail_test.rb b/actionmailer/test/tmail_test.rb
index 7d83a68ac7..dcba4b5ff3 100644
--- a/actionmailer/test/tmail_test.rb
+++ b/actionmailer/test/tmail_test.rb
@@ -10,4 +10,12 @@ class TMailMailTest < Test::Unit::TestCase
     assert_equal "something_with_underscores=\n", m.quoted_body
     assert_equal expected, m.body
   end
+
+  def test_nested_attachments_are_recognized_correctly
+    fixture = File.read("#{File.dirname(__FILE__)}/fixtures/raw_email_with_nested_attachment")
+    mail = TMail::Mail.parse(fixture)
+    assert_equal 2, mail.attachments.length
+    assert_equal "image/png", mail.attachments.first.content_type
+    assert_equal "application/pkcs7-signature", mail.attachments.last.content_type
+  end
 end