Added a new IETFMailMessage class cause default django MailMessage do not distinguish between to and cc. See #342

- Legacy-Id: 2461

ietf/liaisons/mail.py

@@ -0,0 +1,24 @@
+from django.core.mail import EmailMessage
+
+
+class IETFEmailMessage(EmailMessage):
+
+    def __init__(self, *args, **kwargs):
+        cc = kwargs.pop('cc', [])
+        if cc:
+            assert isinstance(cc, (list, tuple)), '"cc" argument must be a list or tuple'
+            self.cc = list(cc)
+        else:
+            self.cc = []
+        super(IETFEmailMessage, self).__init__(*args, **kwargs)
+
+    def message(self):
+        msg = super(IETFEmailMessage, self).message()
+        if self.cc:
+            msg['Cc'] = ', '.join(self.cc)
+        if self.bcc:
+            msg['Bcc'] = ', '.join(self.bcc)
+        return msg
+
+    def recipients(self):
+        return self.to + self.cc + self.bcc