1 files changed, 23 insertions, 3 deletions

diff --git a/src/pgpmailman/commands/eml_key.py b/src/pgpmailman/commands/eml_key.py
index 6cb8469..ba538fa 100644
--- a/src/pgpmailman/commands/eml_key.py
+++ b/src/pgpmailman/commands/eml_key.py
@@ -1,11 +1,13 @@
-from mailman.interfaces.command import IEmailCommand
+"""The key email command."""
+
+from mailman.interfaces.command import ContinueProcessing, IEmailCommand
 from public import public
 from zope.interface import implementer
 
 
 @public
 @implementer(IEmailCommand)
-class Key:
+class KeyCommand:
     name = 'key'
     argument_description = '<change|revoke|sign>'
     short_description = ''
@@ -13,4 +15,22 @@ class Key:
 
     def process(mlist, msg, msgdata, arguments, results):
         """See `IEmailCommand`."""
-        pass
+        if len(arguments) == 0:
+            print('No sub-command specified,'
+                  ' must be one of <change|revoke|sign>.', file=results)
+            return ContinueProcessing.no
+        if arguments[0] == 'change':
+            # New public key in attachment, requires to be signed with current
+            # key
+            pass
+        elif arguments[0] == 'revoke':
+            # Current key revocation certificate in attachment, restarts the
+            # subscription process, or rather only it's key setup part.
+            pass
+        elif arguments[0] == 'sign':
+            # List public key attached, signed by the users current key.
+            pass
+        else:
+            print('Wrong sub-command specified,'
+                  ' must be one of <change|revoke|sign>.', file=results)
+            return ContinueProcessing.no