From ae0042a90220119414f61aeb20c6b58bfacb8af2 Mon Sep 17 00:00:00 2001
From: Barry Warsaw
Date: Tue, 29 Aug 2017 14:07:54 +0000
Subject: PR288 vetted

---
 src/mailman/plugins/initialize.py | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/mailman/plugins/initialize.py

(limited to 'src/mailman/plugins/initialize.py')

diff --git a/src/mailman/plugins/initialize.py b/src/mailman/plugins/initialize.py
new file mode 100644
index 000000000..431f69a6f
--- /dev/null
+++ b/src/mailman/plugins/initialize.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2017 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Initialize the plugins."""
+
+import logging
+
+from lazr.config import as_boolean
+from mailman.config import config
+from mailman.interfaces.plugin import IPlugin
+from mailman.utilities.modules import call_name
+from public import public
+from zope.interface.exceptions import DoesNotImplement
+from zope.interface.verify import verifyObject
+
+
+log = logging.getLogger('mailman.plugins')
+
+
+@public
+def initialize():
+    """Initialize all enabled plugins."""
+    for name, plugin_config in config.plugin_configs:
+        class_path = plugin_config['class'].strip()
+        if not as_boolean(plugin_config['enabled']) or len(class_path) == 0:
+            log.info('Plugin not enabled, or empty class path: {}'.format(
+                name))
+            continue
+        if name in config.plugins:
+            log.error('Duplicate plugin name: {}'.format(name))
+            continue
+        plugin = call_name(class_path)
+        try:
+            verifyObject(IPlugin, plugin)
+        except DoesNotImplement:
+            log.error('Plugin class does not implement IPlugin: {}'.format(
+                class_path))
+            continue
+        plugin.name = name
+        config.plugins[name] = plugin
-- 
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