Handle parsing of recursively multipart messages

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1389 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionmailer/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Nested multipart message parts are correctly processed in TMail::Mail#body
+
 * BCC headers are removed when sending via SMTP #1402
 
 * Added 'content_type' accessor, to allow content type to be set on a per-message basis. content_type defaults to "text/plain".

actionmailer/lib/action_mailer/vendor/tmail/quoting.rb

@@ -28,9 +28,16 @@ module TMail
       if multipart?
         parts.collect { |part| 
           header = part["content-type"]
-          header && header.main_type == "text" ?
-            part.unquoted_body(to_charset) :
-            (header ? attachment_presenter.call(header.params["name"]) : "") 
+
+          if part.multipart?
+            part.body(to_charset, &attachment_presenter)
+          elsif header.nil?
+            ""
+          elsif header.main_type == "text"
+            part.unquoted_body(to_charset)
+          else
+            attachment_presenter.call(header["name"] || "(unnamed)")
+          end
         }.join
       else
         unquoted_body(to_charset)

actionmailer/test/fixtures/raw_email7

@@ -0,0 +1,56 @@
+Mime-Version: 1.0 (Apple Message framework v730)
+Content-Type: multipart/mixed; boundary=Apple-Mail-13-196941151
+Message-Id: <9169D984-4E0B-45EF-82D4-8F5E53AD7012@example.com>
+From: foo@example.com
+Subject: testing
+Date: Mon, 6 Jun 2005 22:21:22 +0200
+To: blah@example.com
+
+
+--Apple-Mail-13-196941151
+Content-Type: multipart/mixed;
+	boundary=Apple-Mail-12-196940926
+
+
+--Apple-Mail-12-196940926
+Content-Transfer-Encoding: quoted-printable
+Content-Type: text/plain;
+	charset=ISO-8859-1;
+	delsp=yes;
+	format=flowed
+
+This is the first part.
+
+--Apple-Mail-12-196940926
+Content-Transfer-Encoding: base64
+Content-Type: application/pdf;
+	x-unix-mode=0666;
+	name="test.pdf"
+Content-Disposition: inline;
+	filename=test.pdf
+
+YmxhaCBibGFoIGJsYWg=
+
+--Apple-Mail-12-196940926
+Content-Transfer-Encoding: 7bit
+Content-Type: text/plain;
+	charset=US-ASCII;
+	format=flowed
+
+
+
+--Apple-Mail-12-196940926--
+
+--Apple-Mail-13-196941151
+Content-Transfer-Encoding: base64
+Content-Type: application/pkcs7-signature;
+	name=smime.p7s
+Content-Disposition: attachment;
+	filename=smime.p7s
+
+jamisSqGSIb3DQEHAqCAMIjamisxCzAJBgUrDgMCGgUAMIAGCSqGSjamisEHAQAAoIIFSjCCBUYw
+ggQujamisQICBD++ukQwDQYJKojamisNAQEFBQAwMTELMAkGA1UEBhMCRjamisAKBgNVBAoTA1RE
+QzEUMBIGjamisxMLVERDIE9DRVMgQ0jamisNMDQwMjI5MTE1OTAxWhcNMDYwMjamisIyOTAxWjCB
+gDELMAkGA1UEjamisEsxKTAnBgNVBAoTIEjamisuIG9yZ2FuaXNhdG9yaXNrIHRpbjamisRuaW5=
+
+--Apple-Mail-13-196941151--

actionmailer/test/mail_service_test.rb

@@ -497,5 +497,11 @@ EOF
     assert_match %r{^To: #{@recipient}}, MockSMTP.deliveries[0][0]
     assert_no_match %r{^Bcc: root@loudthinking.com}, MockSMTP.deliveries[0][0]
   end
+
+  def test_recursive_multipart_processing
+    fixture = File.read(File.dirname(__FILE__) + "/fixtures/raw_email7")
+    mail = TMail::Mail.parse(fixture)
+    assert_equal "This is the first part.\n\nAttachment: test.pdf\n\n\nAttachment: smime.p7s\n", mail.body
+  end
 end