Handle email_rfc822 attribute (#181)

Author: tuck1s

sparkpost/transmissions.py

@@ -45,18 +45,31 @@ def _translate_keys(self, **kwargs):
         model['options']['ip_pool'] = kwargs.get('ip_pool')
         model['options']['inline_css'] = kwargs.get('inline_css')
 
-        model['content']['use_draft_template'] = \
-            kwargs.get('use_draft_template', False)
-        model['content']['reply_to'] = kwargs.get('reply_to')
-        model['content']['subject'] = kwargs.get('subject')
-        from_email = kwargs.get('from_email')
-        if isinstance(from_email, string_types):
-            from_email = self._parse_address(from_email)
-        model['content']['from'] = from_email
-        model['content']['html'] = kwargs.get('html')
-        model['content']['text'] = kwargs.get('text')
-        model['content']['template_id'] = kwargs.get('template')
-        model['content']['headers'] = kwargs.get('custom_headers', {})
+        rfc822 = kwargs.get('email_rfc822')
+        if rfc822:
+            model['content']['email_rfc822'] = rfc822
+        else:
+            model['content']['headers'] = kwargs.get('custom_headers', {})
+            model['content']['use_draft_template'] = \
+                kwargs.get('use_draft_template', False)
+            model['content']['reply_to'] = kwargs.get('reply_to')
+            model['content']['subject'] = kwargs.get('subject')
+            from_email = kwargs.get('from_email')
+            if isinstance(from_email, string_types):
+                from_email = self._parse_address(from_email)
+            model['content']['from'] = from_email
+            model['content']['html'] = kwargs.get('html')
+            model['content']['text'] = kwargs.get('text')
+            model['content']['template_id'] = kwargs.get('template')
+
+            attachments = kwargs.get('attachments', [])
+            model['content']['attachments'] = self._extract_attachments(
+                attachments)
+
+            if 'inline_images' in kwargs:
+                inline_images = kwargs['inline_images']
+                model['content']['inline_images'] = self._extract_attachments(
+                    inline_images)
 
         recipient_list = kwargs.get('recipient_list')
         if recipient_list:
@@ -77,15 +90,6 @@ def _translate_keys(self, **kwargs):
 
             model['recipients'] = recipients
 
-        attachments = kwargs.get('attachments', [])
-        model['content']['attachments'] = self._extract_attachments(
-            attachments)
-
-        if 'inline_images' in kwargs:
-            inline_images = kwargs['inline_images']
-            model['content']['inline_images'] = self._extract_attachments(
-                inline_images)
-
         return model
 
     def _format_copies(self, recipients, copies):

test/test_transmissions.py

@@ -150,6 +150,39 @@ def test_translate_keys_with_inline_css():
     assert results['options'].get('inline_css') is True
 
 
+def test_translate_keys_with_email_rfc822():
+    t = Transmissions('uri', 'key')
+
+    # Build data using implicit cat, as max line length is enforced
+    eml = (
+        'To: wilma <[email protected]>\n',
+        'From: fred <[email protected]>\n',
+        'Subject: Bedrock declaration\n',
+        'MIME-Version: 1.0\n',
+        'Content-Type: text/plain; charset=utf-8; format=flowed\n',
+        'Content-Transfer-Encoding: 7bit\nContent-Language: en-GB\n',
+        '\n',
+        'When in the Course of human events we yell yabba dabba doo.',
+    )
+
+    # Just a selection. Don't test attribs with irregular naming
+    non_rfc822_attrs = {
+        'headers': 'foo',
+        'reply_to': 'foo',
+        'subject': 'foo',
+        'html': 'foo',
+        'text': 'foo',
+    }
+
+    # Demonstrate that email_rfc822 overrides other content attributes
+    test_content = {'email_rfc822': eml}
+    test_content.update(non_rfc822_attrs)
+    results = t._translate_keys(**test_content)
+    for i in non_rfc822_attrs:
+        assert results['content'].get(i) is None
+    assert results['content'].get('email_rfc822') is not None
+
+
 @responses.activate
 def test_success_send():
     responses.add(