send_message allows setting message sender via authid.

Adapted from: http://hg.python.org/tracker/roundup/rev/ad317e38

Author: rouilj

CHANGES.txt

@@ -161,6 +161,7 @@ Features:
 - extract translatable strings from devel and responsive templates. Merge
   translations from https://sourceforge.net/p/roundup/code/merge-requests/3/
   (John Rouillard. DE translations by Tobias Herp.)
+- send_message now allows setting authid to set source of email. (John Rouillard)
 
 2020-07-13 2.0.0
 

roundup/roundupdb.py

@@ -425,7 +425,7 @@ def encrypt_to(self, message, sendto):
         return msg
 
     def send_message(self, issueid, msgid, note, sendto, from_address=None,
-                     bcc_sendto=[], subject=None, crypt=False,
+                     bcc_sendto=[], authid=None, subject=None, crypt=False,
                      add_headers={}):
         '''Actually send the nominated message from this issue to the sendto
            recipients, with the note appended. It's possible to add
@@ -457,7 +457,9 @@ def send_message(self, issueid, msgid, note, sendto, from_address=None,
         title = self.get(issueid, 'title') or '%s message copy' % cn
 
         # figure author information
-        if msgid:
+        if authid:
+            pass
+        elif msgid:
             authid = messages.get(msgid, 'author')
         else:
             authid = self.db.getuid()