From 09a312e9b269f45ef46680a64b32560279798590 Mon Sep 17 00:00:00 2001
From: Kali Kaneko <kali@leap.se>
Date: Thu, 19 Nov 2015 00:01:08 -0400
Subject: [feat] use twisted IService interface to run bonafide service

---
 src/leap/bonafide/_protocol.py | 130 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/leap/bonafide/_protocol.py

(limited to 'src/leap/bonafide/_protocol.py')

diff --git a/src/leap/bonafide/_protocol.py b/src/leap/bonafide/_protocol.py
new file mode 100644
index 0000000..b093b9c
--- /dev/null
+++ b/src/leap/bonafide/_protocol.py
@@ -0,0 +1,130 @@
+# -*- coding: utf-8 -*-
+# _protocol.py
+# Copyright (C) 2014-2015 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/>.
+"""
+Bonafide protocol.
+"""
+import os
+import resource
+from collections import defaultdict
+
+from leap.bonafide import config
+from leap.bonafide import provider
+from leap.bonafide.session import Session, OK
+
+from twisted.cred.credentials import UsernamePassword
+from twisted.internet.defer import fail
+from twisted.python import log
+
+
+# TODO [ ] enable-disable services
+# TODO [ ] read provider info
+
+COMMANDS = 'signup', 'authenticate', 'logout', 'stats'
+
+
+class BonafideProtocol(object):
+    """
+    Expose the protocol that interacts with the Bonafide Service API.
+    """
+
+    _apis = defaultdict(None)
+    _sessions = defaultdict(None)
+
+    def _get_api(self, provider_id):
+        if provider_id in self._apis:
+            return self._apis[provider_id]
+
+        # XXX lookup the provider config instead
+        # TODO defer the autoconfig for the provider if needed...
+        api = provider.Api('https://api.%s:4430' % provider_id)
+        self._apis[provider_id] = api
+        return api
+
+    def _get_session(self, full_id, password=""):
+        if full_id in self._sessions:
+            return self._sessions[full_id]
+
+        # TODO if password/username null, then pass AnonymousCreds
+        # TODO use twisted.cred instead
+        username, provider_id = config.get_username_and_provider(full_id)
+        credentials = UsernamePassword(username, password)
+        api = self._get_api(provider_id)
+        cdev_pem = os.path.expanduser(
+            '~/.config/leap/providers/%s/keys/ca/cacert.pem' %
+            provider_id)
+        session = Session(credentials, api, cdev_pem)
+        self._sessions[full_id] = session
+        return session
+
+    # Service public methods
+
+    def do_signup(self, full_id, password):
+        # XXX check it's unauthenticated
+        def return_user(result, _session):
+            return_code, user = result
+            if return_code == OK:
+                return user
+
+        log.msg('SIGNUP for %s' % full_id)
+        session = self._get_session(full_id, password)
+        username, provider_id = config.get_username_and_provider(full_id)
+
+        d = session.signup(username, password)
+        d.addCallback(return_user, session)
+        return d
+
+    def do_authenticate(self, full_id, password):
+        def return_token(result, _session):
+            if result == OK:
+                return str(_session.token)
+
+        log.msg('AUTH for %s' % full_id)
+        session = self._get_session(full_id, password)
+        d = session.authenticate()
+        d.addCallback(return_token, session)
+        return d
+
+    def do_logout(self, full_id, password):
+        # XXX use the AVATAR here
+        log.msg('LOGOUT for %s' % full_id)
+        session = self._get_session(full_id)
+        if not session.is_authenticated:
+            return fail(RuntimeError("There is no session for such user"))
+        try:
+            d = session.logout()
+        except Exception as exc:
+            log.err(exc)
+            return fail(exc)
+
+        d.addCallback(lambda _: self._sessions.pop(full_id))
+        d.addCallback(lambda _: '%s logged out' % full_id)
+        return d
+
+    def do_stats(self):
+        log.msg('Calculating Bonafide STATS')
+        mem = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
+        return '[+] Bonafide service: [%s sessions] [Mem usage: %s KB]' % (
+            len(self._sessions), mem / 1024)
+
+    def do_get_vpn_cert(self):
+        pass
+
+    def do_get_smtp_cert(self):
+        pass
+
+    def do_update_user(self):
+        pass
-- 
cgit v1.2.3