From 6ffc739b15405584cc75be313417edc04c904033 Mon Sep 17 00:00:00 2001
From: 3wc <3wc@doesthisthing.work>
Date: Tue, 27 Feb 2024 16:08:12 -0300
Subject: [PATCH] Moderation policy, DMARC, archive

---
 export_mailman2_settings.py | 55 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/export_mailman2_settings.py b/export_mailman2_settings.py
index c790fa6..b632648 100644
--- a/export_mailman2_settings.py
+++ b/export_mailman2_settings.py
@@ -4,7 +4,9 @@ import sys
 
 from bs4 import BeautifulSoup
 
-from mailman.utilities.importer import NAME_MAPPINGS
+from mailman.interfaces.archiver import ArchivePolicy
+from mailman.interfaces.action import Action
+from mailman.utilities.importer import NAME_MAPPINGS, member_moderation_action_mapping, dmarc_action_mapping
 
 KEYFILTER = ('submit')
 
@@ -72,4 +74,55 @@ if __name__ == "__main__":
                 msg(f"warning - duplicate key {key}")
             else:
                 globalconfig[key] = value
+
+    # Handle the moderation policy.
+    #
+    # The mlist.default_member_action and mlist.default_nonmember_action enum
+    # values are different in Mailman 2.1, because they have been merged into a
+    # single enum in Mailman 3.
+    #
+    # Unmoderated lists used to have default_member_moderation set to a false
+    # value; this translates to the Defer default action.  Moderated lists with
+    # the default_member_moderation set to a true value used to store the
+    # action in the member_moderation_action flag, the values were: 0==Hold,
+    # 1=Reject, 2==Discard
+    if bool(globalconfig.get('default_member_moderation', 0)):
+        globalconfig['default_member_action'] = member_moderation_action_mapping(
+            globalconfig.get('member_moderation_action')).name
+    else:
+        globalconfig['default_member_action'] = Action.defer.name
+    # Handle DMARC mitigations.
+    # This would be straightforward except for from_is_list.  The issue
+    # is in MM 2.1 the from_is_list action applies if dmarc_moderation_action
+    # doesn't apply and they can be different.
+    # We will map as follows:
+    # from_is_list > dmarc_moderation_action
+    #    dmarc_mitigate_action = from_is_list action
+    #    dmarc_mitigate_unconditionally = True
+    # from_is_list <= dmarc_moderation_action
+    #    dmarc_mitigate_action = dmarc_moderation_action
+    #    dmarc_mitigate_unconditionally = False
+    # The text attributes are handled above.
+    if (globalconfig.get('from_is_list', 0) >
+            globalconfig.get('dmarc_moderation_action', 0)):
+        globalconfig['dmarc_mitigate_action'] = dmarc_action_mapping(
+            globalconfig.get('from_is_list', 0)).name
+        globalconfig['dmarc_mitigate_unconditionally'] = True
+    else:
+        globalconfig['dmarc_mitigate_action'] = dmarc_action_mapping(
+            globalconfig.get('dmarc_moderation_action', 0)).name
+        globalconfig['dmarc_mitigate_unconditionally'] = False
+    # Handle the archiving policy.  In MM2.1 there were two boolean options
+    # but only three of the four possible states were valid.  Now there's just
+    # an enum.
+    if globalconfig.get('archive'):
+        # For maximum safety, if for some strange reason there's no
+        # archive_private key, treat the list as having private archives.
+        if globalconfig.get('archive_private', True):
+            globalconfig['archive_policy'] = ArchivePolicy.private.name
+        else:
+            globalconfig['archive_policy'] = ArchivePolicy.public.name
+    else:
+        globalconfig['archive_policy'] = ArchivePolicy.never.name
+
     print(json.dumps(globalconfig))