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authordrebs <drebs@leap.se>2015-03-25 15:47:28 -0300
committerdrebs <drebs@leap.se>2015-03-25 17:07:27 -0300
commitb5309dc5910f35f5320c649be2ce2c6147030b39 (patch)
treeaa4f587ece5749e8ec719aacbc16717607caa250 /src/leap/mx/tcp_map.py
parent5a45acd3486f4e7f830647953731353cda916d51 (diff)
[refactor] separate tcp map server code
Separate the common tcp map server code, used for both alias resolver and recipient access checker, to its own file.
Diffstat (limited to 'src/leap/mx/tcp_map.py')
-rw-r--r--src/leap/mx/tcp_map.py76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/leap/mx/tcp_map.py b/src/leap/mx/tcp_map.py
new file mode 100644
index 0000000..b7066ff
--- /dev/null
+++ b/src/leap/mx/tcp_map.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+# tcpmap.py
+# Copyright (C) 2015 LEAP
+#
+# 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 twisted.python import log
+from twisted.internet import defer
+from twisted.internet.protocol import ServerFactory
+
+
+# For info on codes, see: http://www.postfix.org/tcp_table.5.html
+TCP_MAP_CODE_SUCCESS = 200
+TCP_MAP_CODE_TEMPORARY_FAILURE = 400
+TCP_MAP_CODE_PERMANENT_FAILURE = 500
+
+
+class LEAPPostfixTCPMapServerFactory(ServerFactory):
+ """
+ A factory for postfix tcp map servers.
+ """
+
+ def __init__(self, couchdb):
+ """
+ Initialize the factory.
+
+ :param couchdb: A CouchDB client.
+ :type couchdb: leap.mx.couchdbhelper.ConnectedCouchDB
+ """
+ self._cdb = couchdb
+
+ def _getPubKey(self, uuid):
+ """
+ Look up PGP public key based on user uid.
+
+ :param uuid: The user uid.
+ :type uuid: str
+
+ :return: A deferred that is fired with the uuid and the public key, if
+ available.
+ :rtype: DeferredList
+ """
+ if uuid is None:
+ return defer.succeed([None, None])
+ return defer.gatherResults([
+ defer.succeed(uuid),
+ self._cdb.getPubKey(uuid),
+ ])
+
+ def get(self, key):
+ """
+ Look up uuid based on key, only up to the username id of the key.
+
+ At some point we will have to consider the domain part too.
+
+ :param key: The lookup key.
+ :type key: str
+ """
+ log.msg("Query key: %s" % (key,))
+ d = self._cdb.queryByAddress(key)
+ d.addCallback(self._getPubKey)
+ d.addErrback(log.err)
+ return d