1 files changed, 97 insertions, 0 deletions
diff --git a/src/mailman_pgp/workflows/base.py b/src/mailman_pgp/workflows/base.py
new file mode 100644
index 0000000..40ff4d7
--- /dev/null
+++ b/src/mailman_pgp/workflows/base.py
@@ -0,0 +1,97 @@
+# Copyright (C) 2017 Jan Jancar
+#
+# This file is a part of the Mailman PGP plugin.
+#
+# This program 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.
+#
+# This program 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
+# this program.  If not, see <http://www.gnu.org/licenses/>.
+
+""""""
+from mailman.email.message import UserNotification
+from mailman.interfaces.subscriptions import TokenOwner
+
+from mailman_pgp.model.address import PGPAddress
+from mailman_pgp.model.list import PGPMailingList
+from mailman_pgp.pgp.wrapper import PGPWrapper
+
+KEY_REQUEST = """\
+----------
+TODO: this is a pgp enabled list.
+We need your pubkey.
+Reply to this message with it as a PGP/MIME(preferred) or inline.
+----------"""
+
+CONFIRM_REQUEST = """\
+----------
+TODO: this is a pgp enabled list.
+Reply to this message with this whole text
+signed with your supplied key, either inline or PGP/MIME.
+
+Fingerprint: {}
+Token: {}
+----------
+"""
+
+
+class PubkeyMixin:
+    def __init__(self, pubkey=None):
+        self.pubkey = pubkey
+
+    def _step_pubkey_checks(self):
+        if not self.pubkey:
+            self.push('send_key_request')
+
+    def _step_send_key_request(self):
+        self._set_token(TokenOwner.subscriber)
+        self.push('receive_key')
+        self.save()
+        request_address = self.mlist.request_address
+        email_address = self.address.email
+        msg = UserNotification(email_address, request_address,
+                               'key set {}'.format(self.token),
+                               KEY_REQUEST)
+        msg.send(self.mlist, add_precedence=False)
+        # Now we wait for the confirmation.
+        raise StopIteration
+
+    def _step_receive_key(self):
+        pgp_address = PGPAddress.for_address(self.address)
+        if pgp_address is None or pgp_address.key:
+            # The workflow was confirmed but we still dont have an address
+            # or the pubkey. So resend request and wait.
+            self.push('send_key_request')
+            return
+        else:
+            self.pubkey = pgp_address.key
+            self.push('send_confirm_request')
+
+    def _step_send_confirm_request(self):
+        self._set_token(TokenOwner.subscriber)
+        self.push('receive_confirmation')
+        self.save()
+        request_address = self.mlist.request_address
+        email_address = self.address.email
+        msg = UserNotification(email_address, request_address,
+                               'key confirm {}'.format(self.token),
+                               CONFIRM_REQUEST.format(self.pubkey.fingerprint,
+                                                      self.token))
+        pgp_list = PGPMailingList.for_list(self.mlist)
+        wrapped = PGPWrapper(msg)
+        encrypted = wrapped.encrypt(self.pubkey, pgp_list.pubkey)
+
+        # XXX: This is not good:
+        msg.set_payload(encrypted)
+        msg.send(self.mlist)
+        raise StopIteration
+
+    def _step_receive_confirmation(self):
+        pass