1 files changed, 42 insertions, 0 deletions

diff --git a/src/mailman_pgp/plugin.py b/src/mailman_pgp/plugin.py
new file mode 100644
index 0000000..e6eec4f
--- /dev/null
+++ b/src/mailman_pgp/plugin.py
@@ -0,0 +1,42 @@
+"""A PGP plugin for GNU Mailman."""
+from mailman.app import events
+from mailman.config import config as mailman_config
+from mailman.interfaces.listmanager import ListDeletedEvent
+from mailman.interfaces.plugin import IPlugin
+from mailman.utilities.modules import expand_path
+from public import public
+from zope.interface import implementer
+
+from mailman_pgp.config import config
+from mailman_pgp.database import Database, transaction
+from mailman_pgp.model.list import EncryptedMailingList
+from mailman_pgp.rest.root import RESTRoot
+
+
+@public
+@implementer(IPlugin)
+class PGPMailman:
+    def pre_hook(self):
+        """See `IPlugin`."""
+        config.read(
+            expand_path(
+                dict(mailman_config.plugin_configs)[self.name].configuration))
+        config.db = Database()
+        config.name = self.name
+
+    def post_hook(self):
+        """See `IPlugin`."""
+        pass
+
+    def rest_object(self):
+        """See `IPlugin`."""
+        return RESTRoot()
+
+
+@events.subscribe(ListDeletedEvent)
+def on_delete(mlist):
+    encrypted_list = config.db.session.query(EncryptedMailingList).filter_by(
+        list_id=mlist.list_id).first()
+    if encrypted_list:
+        with transaction():
+            config.db.session.delete(encrypted_list)