omemo/README.md

+# OMEMO Plugin for Gajim
+
+This is an experimental plugin that adds support for the [OMEMO
+Encryption](http://conversations.im/omemo) to [Gajim](https://gajim.org/). This
+plugin is [free software](http://www.gnu.org/philosophy/free-sw.en.html)
+distributed under the GNU General Public License version 3 or any later version.
+
+**DO NOT rely on this plugin to protect sensitive information!** 
+
+## Installation
+
+### Windows
+
+See [Windows Wiki](https://github.com/omemo/gajim-omemo/wiki/Installing-and-Using-on-Windows)
+
+### Via Package Manager
+#### Arch
+See [Arch Wiki](https://wiki.archlinux.org/index.php/Gajim#OMEMO_Support)
+
+#### Gentoo
+`layman -a flow && emerge gajim-omemo`
+
+### Via PluginInstallerPlugin
+
+Install the current stable version via the Gajim PluginManager. You *need* Gajim
+version *0.16.5*. If your package manager does not provide an up to date version
+you can install it from the official Mercurial repository. *DO NOT USE* gajim
+0.16.4 it contains a vulnerability, which is fixed in 0.16.5.
+```shell
+hg clone https://hg.gajim.org/gajim
+cd gajim
+hg update gajim-0.16.5 --clean
+```
+
+**NOTE:** You *have* to install `python-axolotl` via `pip`. Depending on your setup you might
+want to use `pip2` as Gajim is using python2.7. If you are using the official repository,
+do not forget to install the `nbxmpp` dependency via pip or you package manager.
+
+if you still have problems, we have written down the most common problems [here](https://github.com/omemo/gajim-omemo/wiki/It-doesnt-work,-what-should-i-do%3F-(Linux))
+
+## Running
+Enable *OMEMO Multi-End Message and Object Encryption* in the Plugin-Manager.
+If your contact supports OMEMO you should see a new orange fish icon in the chat window.
+
+Encryption will be enabled by default for contacts that support OMEMO.
+If you open the chat window, the Plugin will tell you with a green status message if its *enabled* or *disabled*.
+If you see no status message, your contact doesnt support OMEMO.
+(**Beware**, every status message is green. A green message does not mean encryption is active. Read the message !)
+You can also check if encryption is enabled/disabled, when you click on the OMEMO icon.
+
+When you send your first message the Plugin will query your contacts encryption keys and you will
+see them in a readable fingerprint format in the fingerprint window which pops up.
+you have to trust at least **one** fingerprint to send messages.
+you can receive messages from fingerprints where you didnt made a trust decision, but you cant
+receive Messages from *not trusted* fingerprints
+
+
+## Debugging
+To see OMEMO related debug output start Gajim with the parameter `-l
+gajim.plugin_system.omemo=DEBUG`.
+
+## Hacking
+This repository contains the current development version. If you want to
+contribute clone the git repository into your Gajim's plugin directory. 
+```shell
+mkdir ~/.local/share/gajim/plugins -p
+cd ~/.local/share/gajim/plugins
+git clone https://github.com/omemo/gajim-omemo
+```
+
+## Support this project
+I develop this project in my free time. Your donation allows me to spend more
+time working on it and on free software generally.
+
+My Bitcoin Address is: `1CnNM3Mree9hU8eRjCXrfCWVmX6oBnEfV1`
+
+[![Support Me via Flattr](http://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/thing/5038679)
+
+## I found a bug
+Please report it to the [issue
+tracker](https://github.com/omemo/gajim-omemo/issues). If you are experiencing
+misbehaviour please provide detailed steps to reproduce and debugging output.
+Always mention the exact Gajim version. 
+
+## Contact
+You can contact me via email at `bahtiar@gadimov.de` or follow me on
+[Twitter](https://twitter.com/_kalkin)

omemo/__init__.py

+# -*- coding: utf-8 -*-
+#
+# Copyright 2015 Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
+# Copyright 2015 Daniel Gultsch <daniel@cgultsch.de>
+#
+# This file is part of Gajim-OMEMO plugin.
+#
+# The Gajim-OMEMO plugin 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.
+#
+# Gajim-OMEMO 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
+# the Gajim-OMEMO plugin.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import logging
+import os
+import sqlite3
+import ui
+import re
+
+from common import demandimport
+demandimport.enable()
+demandimport.ignore += ['_imp']
+
+# pylint: disable=import-error
+from common import caps_cache, gajim, ged
+from common.pep import SUPPORTED_PERSONAL_USER_EVENTS
+from plugins import GajimPlugin
+from plugins.helpers import log_calls
+
+from nbxmpp.simplexml import Node
+from nbxmpp import NS_CORRECT
+
+from .ui import Ui
+from .xmpp import (
+    NS_NOTIFY, NS_OMEMO, BundleInformationAnnouncement, BundleInformationQuery,
+    DeviceListAnnouncement, DevicelistQuery, DevicelistPEP, OmemoMessage,
+    successful, unpack_device_bundle, unpack_device_list_update,
+    unpack_encrypted)
+
+
+iq_ids_to_callbacks = {}
+
+AXOLOTL_MISSING = 'Please install python-axolotl.'
+
+NS_HINTS = 'urn:xmpp:hints'
+
+log = logging.getLogger('gajim.plugin_system.omemo')
+try:
+    from omemo.state import OmemoState
+    HAS_AXOLOTL = True
+except ImportError as e:
+    log.error(e)
+    HAS_AXOLOTL = False
+
+DB_DIR = gajim.gajimpaths.data_root
+
+
+class OmemoPlugin(GajimPlugin):
+    # pylint: disable=no-init
+
+    omemo_states = {}
+    ui_list = {}
+
+    @log_calls('OmemoPlugin')
+    def init(self):
+        # pylint: disable=attribute-defined-outside-init
+        if not HAS_AXOLOTL:
+            self.activatable = False
+            self.available_text = _(AXOLOTL_MISSING)
+            return
+        self.events_handlers = {
+            'mam-message-received': (ged.PRECORE, self.mam_message_received),
+            'message-received': (ged.PRECORE, self.message_received),
+            'pep-received': (ged.PRECORE, self.handle_device_list_update),
+            'raw-iq-received': (ged.PRECORE, self.handle_iq_received),
+            'signed-in': (ged.PRECORE, self.signed_in),
+            'stanza-message-outgoing':
+            (ged.PRECORE, self.handle_outgoing_stanza),
+            'message-outgoing':
+            (ged.PRECORE, self.handle_outgoing_event),
+        }
+        self.config_dialog = ui.OMEMOConfigDialog(self)
+        self.gui_extension_points = {'chat_control': (self.connect_ui,
+                                                      self.disconnect_ui)}
+        SUPPORTED_PERSONAL_USER_EVENTS.append(DevicelistPEP)
+        self.plugin = self
+        self.announced = []
+        self.query_for_bundles = []
+
+    @log_calls('OmemoPlugin')
+    def get_omemo_state(self, account):
+        """ Returns the the OmemoState for specified account. Creates the
+            OmemoState if it does not exist yet.
+        """
+        if account not in self.omemo_states:
+            self.deactivate_gajim_e2e(account)
+            db_path = os.path.join(DB_DIR, 'omemo_' + account + '.db')
+            conn = sqlite3.connect(db_path, check_same_thread=False)
+
+            my_jid = gajim.get_jid_from_account(account)
+
+            self.omemo_states[account] = OmemoState(my_jid, conn, account,
+                                                    self.plugin)
+
+        return self.omemo_states[account]
+
+    @log_calls('OmemoPlugin')
+    def deactivate_gajim_e2e(self, account):
+        """ Deativates E2E encryption in Gajim per Account
+        """
+        gajim.config.set_per('accounts', account,
+                             'autonegotiate_esessions', False)
+        gajim.config.set_per('accounts', account,
+                             'enable_esessions', False)
+        log.info(str(account) + " => Gajim E2E encryption disabled")
+
+    @log_calls('OmemoPlugin')
+    def signed_in(self, event):
+        """
+            On sign in announce OMEMO support for each account.
+        """
+        account = event.conn.name
+        log.debug(account +
+                  ' => Announce Support after Sign In')
+        self.query_for_bundles = []
+        self.announced = []
+        self.announced.append(account)
+        self.publish_bundle(account)
+        self.query_own_devicelist(account)
+
+    @log_calls('OmemoPlugin')
+    def activate(self):
+        self.query_for_bundles = []
+        if NS_NOTIFY not in gajim.gajim_common_features:
+            gajim.gajim_common_features.append(NS_NOTIFY)
+        self._compute_caps_hash()
+        # Publish bundle information
+        for account in gajim.connections:
+            if account not in self.announced:
+                if gajim.account_is_connected(account):
+                    log.debug(account +
+                              ' => Announce Support after Plugin Activation')
+                    self.announced.append(account)
+                    self.publish_bundle(account)
+                    self.query_own_devicelist(account)
+
+    @log_calls('OmemoPlugin')
+    def deactivate(self):
+        if NS_NOTIFY in gajim.gajim_common_features:
+            gajim.gajim_common_features.remove(NS_NOTIFY)
+        self._compute_caps_hash()
+
+    @log_calls('OmemoPlugin')
+    def _compute_caps_hash(self):
+        for a in gajim.connections:
+            gajim.caps_hash[a] = caps_cache.compute_caps_hash(
+                [
+                    gajim.gajim_identity
+                ],
+                gajim.gajim_common_features + gajim.gajim_optional_features[a])
+            # re-send presence with new hash
+            connected = gajim.connections[a].connected
+            if connected > 1 and gajim.SHOW_LIST[connected] != 'invisible':
+                gajim.connections[a].change_status(gajim.SHOW_LIST[connected],
+                                                   gajim.connections[a].status)
+
+    @log_calls('OmemoPlugin')
+    def mam_message_received(self, msg):
+        if msg.msg_.getTag('encrypted', namespace=NS_OMEMO):
+            account = msg.conn.name
+            log.debug(account + ' => OMEMO MAM msg received')
+            self.print_msg_to_log(msg.msg_)
+            state = self.get_omemo_state(account)
+
+            from_jid = str(msg.msg_.getAttr('from'))
+            from_jid = gajim.get_jid_without_resource(from_jid)
+
+            msg_dict = unpack_encrypted(msg.msg_.getTag
+                                        ('encrypted', namespace=NS_OMEMO))
+            msg_dict['sender_jid'] = from_jid
+            plaintext = state.decrypt_msg(msg_dict)
+
+            if not plaintext:
+                return
+
+            msg.msgtxt = plaintext
+
+            contact_jid = msg.with_
+
+            if account in self.ui_list and \
+                    contact_jid in self.ui_list[account]:
+                self.ui_list[account][contact_jid].activate_omemo()
+            return False
+
+        elif msg.msg_.getTag('body'):
+            account = msg.conn.name
+
+            jid = msg.with_
+            state = self.get_omemo_state(account)
+            omemo_enabled = state.encryption.is_active(jid)
+
+            if omemo_enabled:
+                msg.msgtxt = '**Unencrypted** ' + msg.msgtxt
+
+                try:
+                    gui = self.ui_list[account].get(jid, None)
+                    if gui and gui.encryption_active():
+                        gui.plain_warning()
+                except KeyError:
+                    log.debug('No Ui present for ' + jid +
+                              ', Ui Warning not shown')
+
+    @log_calls('OmemoPlugin')
+    def message_received(self, msg):
+        if msg.stanza.getTag('encrypted', namespace=NS_OMEMO) and \
+                msg.mtype == 'chat':
+            account = msg.conn.name
+            log.debug(account + ' => OMEMO msg received')
+
+            state = self.get_omemo_state(account)
+            if msg.forwarded and msg.sent:
+                from_jid = str(msg.stanza.getTo())  # why gajim? why?
+                log.debug('message was forwarded doing magic')
+            else:
+                from_jid = str(msg.stanza.getFrom())
+            self.print_msg_to_log(msg.stanza)
+            msg_dict = unpack_encrypted(msg.stanza.getTag
+                                        ('encrypted', namespace=NS_OMEMO))
+            msg_dict['sender_jid'] = gajim.get_jid_without_resource(from_jid)
+            plaintext = state.decrypt_msg(msg_dict)
+
+            if not plaintext:
+                return
+
+            msg.msgtxt = plaintext
+            # bug? there must be a body or the message gets dropped from history
+            msg.stanza.setBody(plaintext)
+
+            contact_jid = gajim.get_jid_without_resource(from_jid)
+            if account in self.ui_list and \
+                    contact_jid in self.ui_list[account]:
+                self.ui_list[account][contact_jid].activate_omemo()
+            return False
+
+        elif msg.stanza.getTag('body') and msg.mtype == 'chat':
+            account = msg.conn.name
+
+            from_jid = str(msg.stanza.getFrom())
+            jid = gajim.get_jid_without_resource(from_jid)
+            state = self.get_omemo_state(account)
+            omemo_enabled = state.encryption.is_active(jid)
+
+            if omemo_enabled:
+                msg.msgtxt = '**Unencrypted** ' + msg.msgtxt
+                # msg.stanza.setBody(msg.msgtxt)
+
+                try:
+                    gui = self.ui_list[account].get(jid, None)
+                    if gui and gui.encryption_active():
+                        gui.plain_warning()
+                except KeyError:
+                    log.debug('No Ui present for ' + jid +
+                              ', Ui Warning not shown')
+
+    @log_calls('OmemoPlugin')
+    def handle_device_list_update(self, event):
+        """ Check if the passed event is a device list update and store the new
+            device ids.
+
+            Parameters
+            ----------
+            event : MessageReceivedEvent
+
+            Returns
+            -------
+            bool
+                True if the given event was a valid device list update event
+
+
+            See also
+            --------
+            4.2 Discovering peer support
+                http://conversations.im/xeps/multi-end.html#usecases-discovering
+        """
+        if event.pep_type != 'headline':
+            return False
+
+        devices_list = unpack_device_list_update(event.stanza, event.conn.name)
+        if len(devices_list) == 0:
+            return False
+        account = event.conn.name
+        contact_jid = gajim.get_jid_without_resource(event.fjid)
+        state = self.get_omemo_state(account)
+        my_jid = gajim.get_jid_from_account(account)
+
+        if contact_jid == my_jid:
+            log.info(account + ' => Received own device list:' + str(
+                devices_list))
+            state.set_own_devices(devices_list)
+            state.store.sessionStore.setActiveState(devices_list, my_jid)
+
+            # remove contact from list, so on send button pressed
+            # we query for bundle and build a session
+            if contact_jid in self.query_for_bundles:
+                self.query_for_bundles.remove(contact_jid)
+
+            if not state.own_device_id_published() or anydup(
+                    state.own_devices):
+                # Our own device_id is not in the list, it could be
+                # overwritten by some other client?
+                # Is a Device ID duplicated?
+                self.publish_own_devices_list(account, state)
+        else:
+            log.info(account + ' => Received device list for ' +
+                     contact_jid + ':' + str(devices_list))
+            state.set_devices(contact_jid, set(devices_list))
+            state.store.sessionStore.setActiveState(devices_list, contact_jid)
+
+            # remove contact from list, so on send button pressed
+            # we query for bundle and build a session
+            if contact_jid in self.query_for_bundles:
+                self.query_for_bundles.remove(contact_jid)
+
+            # Enable Encryption on receiving first Device List
+            if not state.encryption.exist(contact_jid):
+                if account in self.ui_list and \
+                        contact_jid in self.ui_list[account]:
+                    log.debug(account +
+                              ' => Switch encryption ON automatically ...')
+                    self.ui_list[account][contact_jid].activate_omemo()
+                else:
+                    log.debug(account +
+                              ' => Switch encryption ON automatically ...')
+                    self.omemo_enable_for(contact_jid, account)
+
+            if account in self.ui_list and \
+                    contact_jid not in self.ui_list[account]:
+
+                chat_control = gajim.interface.msg_win_mgr.get_control(
+                    contact_jid, account)
+
+                if chat_control:
+                    self.connect_ui(chat_control)
+
+        return True
+
+    @log_calls('OmemoPlugin')
+    def publish_own_devices_list(self, account_name, state):
+
+        devices_list = state.own_devices
+        devices_list.append(state.own_device_id)
+        devices_list = list(set(devices_list))
+        state.set_own_devices(devices_list)
+
+        log.debug(account_name + ' => Publishing own Devices: ' + str(
+            devices_list))
+        iq = DeviceListAnnouncement(devices_list)
+        gajim.connections[account_name].connection.send(iq)
+        id_ = str(iq.getAttr('id'))
+        iq_ids_to_callbacks[id_] = lambda event: log.debug(event)
+
+    @log_calls('OmemoPlugin')
+    def connect_ui(self, chat_control):
+        account = chat_control.contact.account.name
+        contact_jid = chat_control.contact.jid
+        if account not in self.ui_list:
+            self.ui_list[account] = {}
+        state = self.get_omemo_state(account)
+        my_jid = gajim.get_jid_from_account(account)
+        omemo_enabled = state.encryption.is_active(contact_jid)
+        if omemo_enabled:
+            log.debug(account + " => Adding OMEMO ui for " + contact_jid)
+            self.ui_list[account][contact_jid] = Ui(self, chat_control,
+                                                    omemo_enabled, state)
+            self.ui_list[account][contact_jid].new_fingerprints_available()
+            return
+        if contact_jid in state.device_ids or contact_jid == my_jid:
+            log.debug(account + " => Adding OMEMO ui for " + contact_jid)
+            self.ui_list[account][contact_jid] = Ui(self, chat_control,
+                                                    omemo_enabled, state)
+            self.ui_list[account][contact_jid].new_fingerprints_available()
+        else:
+            log.warn(account + " => No devices for " + contact_jid)
+
+    @log_calls('OmemoPlugin')
+    def disconnect_ui(self, chat_control):
+        contact_jid = chat_control.contact.jid
+        account_name = chat_control.contact.account.name
+        self.ui_list[account_name][contact_jid].removeUi()
+
+    def are_keys_missing(self, account, contact_jid):
+        """ Check DB if keys are missing and query them """
+        state = self.get_omemo_state(account)
+        my_jid = gajim.get_jid_from_account(account)
+
+        # Fetch Bundles of own other Devices
+        if my_jid not in self.query_for_bundles:
+
+            devices_without_session = state \
+                    .devices_without_sessions(my_jid)
+
+            self.query_for_bundles.append(my_jid)
+
+            if devices_without_session:
+                for device_id in devices_without_session:
+                    self.fetch_device_bundle_information(account,
+                                                         state,
+                                                         my_jid,
+                                                         device_id)
+
+        # Fetch Bundles of contacts devices
+        if contact_jid not in self.query_for_bundles:
+
+            devices_without_session = state \
+                .devices_without_sessions(contact_jid)
+
+            self.query_for_bundles.append(contact_jid)
+
+            if devices_without_session:
+                for device_id in devices_without_session:
+                    self.fetch_device_bundle_information(account,
+                                                         state,
+                                                         contact_jid,
+                                                         device_id)
+
+        if state.getTrustedFingerprints(contact_jid):
+            return False
+        else:
+            return True
+
+
+
+    @log_calls('OmemoPlugin')
+    def handle_iq_received(self, event):
+        global iq_ids_to_callbacks
+        id_ = str(event.stanza.getAttr("id"))
+        if id_ in iq_ids_to_callbacks:
+            try:
+                iq_ids_to_callbacks[id_](event.stanza)
+            except:
+                raise
+            finally:
+                del iq_ids_to_callbacks[id_]
+
+    @log_calls('OmemoPlugin')
+    def fetch_device_bundle_information(self, account_name, state, jid,
+                                        device_id):
+        """ Fetch bundle information for specified jid, key, and create axolotl
+            session on success.
+
+            Parameters
+            ----------
+            account_name : str
+                The account name
+            state : (OmemoState)
+                The OmemoState which is missing device bundle information
+            jid : str
+                The jid to query for bundle information
+            device_id : int
+                The device_id for which we are missing an axolotl session
+        """
+        log.info(account_name + ' => Fetch bundle device ' + str(device_id) +
+                 '#' + jid)
+        iq = BundleInformationQuery(jid, device_id)
+        iq_id = str(iq.getAttr('id'))
+        iq_ids_to_callbacks[iq_id] = \
+            lambda stanza: self.session_from_prekey_bundle(account_name, state,
+                                                           stanza, jid,
+                                                           device_id)
+        gajim.connections[account_name].connection.send(iq)
+
+    @log_calls('OmemoPlugin')
+    def session_from_prekey_bundle(self, account_name, state, stanza,
+                                   recipient_id, device_id):
+        """ Starts a session when a bundle information announcement is received.
+
+
+            This method tries to build an axolotl session when a PreKey bundle
+            is fetched.
+
+            If a session can not be build it will fail silently but log the a
+            warning.
+
+            See also
+            --------
+            4.3. Announcing bundle information:
+                http://conversations.im/xeps/multi-end.html#usecases-announcing
+
+            4.4 Building a session:
+                http://conversations.im/xeps/multi-end.html#usecases-building
+
+            Parameters:
+            -----------
+            account_name : str
+                The account name
+            state : (OmemoState)
+                The OmemoState used
+            stanza
+                The stanza object received from callback
+            recipient_id : str
+                           The recipient jid
+            device_id : int
+                The device_id for which the bundle was queried
+
+        """
+        bundle_dict = unpack_device_bundle(stanza, device_id)
+        if not bundle_dict:
+            log.warn('Failed requesting a bundle')
+            return
+
+        if state.build_session(recipient_id, device_id, bundle_dict):
+            log.info(account_name + ' => session created for: ' + recipient_id)
+            # Warn User about new Fingerprints in DB if Chat Window is Open
+            if account_name in self.ui_list and \
+                    recipient_id in self.ui_list[account_name]:
+                self.ui_list[account_name][recipient_id]. \
+                    new_fingerprints_available()
+
+    @log_calls('OmemoPlugin')
+    def query_own_devicelist(self, account):
+        my_jid = gajim.get_jid_from_account(account)
+        iq = DevicelistQuery(my_jid)
+        gajim.connections[account].connection.send(iq)
+        log.info(account + ' => Querry own devicelist ...')
+        id_ = str(iq.getAttr("id"))
+        iq_ids_to_callbacks[id_] = lambda stanza: \
+            self.handle_devicelist_result(account, stanza)
+
+    @log_calls('OmemoPlugin')
+    def publish_bundle(self, account):
+        """ Publish our bundle information to the PEP node.
+
+            Parameters
+            ----------
+            account : str
+                the account name
+
+            See also
+            --------
+            4.3 Announcing bundle information:
+                http://conversations.im/xeps/multi-end.html#usecases-announcing
+        """
+        state = self.get_omemo_state(account)
+        iq = BundleInformationAnnouncement(state.bundle, state.own_device_id)
+        gajim.connections[account].connection.send(iq)
+        id_ = str(iq.getAttr("id"))
+        log.info(account + " => Publishing bundle ...")
+        iq_ids_to_callbacks[id_] = lambda stanza: \
+            self.handle_publish_result(account, stanza)
+
+    @log_calls('OmemoPlugin')
+    def handle_publish_result(self, account, stanza):
+        """ Log if publishing our bundle was successful
+
+            Parameters
+            ----------
+            account : str
+                the account name
+            stanza
+                The stanza object received from callback
+        """
+        if successful(stanza):
+            log.info(account + ' => Publishing bundle was successful')
+        else:
+            log.error(account + ' => Publishing bundle was NOT successful')
+
+    @log_calls('OmemoPlugin')
+    def handle_devicelist_result(self, account, stanza):
+        """ If query was successful add own device to the list.
+
+            Parameters
+            ----------
+            account : str
+                the account name
+            stanza
+                The stanza object received from callback
+        """
+
+        my_jid = gajim.get_jid_from_account(account)
+        state = self.get_omemo_state(account)
+
+        if successful(stanza):
+            log.info(account + ' => Devicelistquery was successful')
+            devices_list = unpack_device_list_update(stanza, account)
+            if len(devices_list) == 0:
+                return False
+            contact_jid = stanza.getAttr('from')
+            if contact_jid == my_jid:
+                state.set_own_devices(devices_list)
+                state.store.sessionStore.setActiveState(devices_list, my_jid)
+
+                # remove contact from list, so on send button pressed
+                # we query for bundle and build a session
+                if contact_jid in self.query_for_bundles:
+                    self.query_for_bundles.remove(contact_jid)
+
+                if not state.own_device_id_published() or anydup(
+                        state.own_devices):
+                    # Our own device_id is not in the list, it could be
+                    # overwritten by some other client?
+                    # Is a Device ID duplicated?
+                    self.publish_own_devices_list(account, state)
+        else:
+            log.error(account + ' => Devicelistquery was NOT successful')
+            self.publish_own_devices_list(account, state)
+
+    @log_calls('OmemoPlugin')
+    def clear_device_list(self, account):
+        state = self.get_omemo_state(account)
+        devices_list = [state.own_device_id]
+        state.set_own_devices(devices_list)
+
+        log.info(account + ' => Clearing devices_list ' + str(devices_list))
+        iq = DeviceListAnnouncement(devices_list)
+        connection = gajim.connections[account].connection
+        if not connection:  # not connected
+            return
+        connection.send(iq)
+        id_ = str(iq.getAttr('id'))
+        iq_ids_to_callbacks[id_] = lambda event: log.info(event)
+
+    @log_calls('OmemoPlugin')
+    def handle_outgoing_event(self, event):
+        # Handles the message before it gets made into a stanza
+        # and allows us to remove every xhtml before it even gets
+        # pressed into a stanza
+        account = event.account
+        state = self.get_omemo_state(account)
+
+        if not state.encryption.is_active(event.jid):
+            return False
+
+        event.xhtml = None
+
+    def print_msg_to_log(self, stanza):
+        log.debug('-'*15)
+        stanzastr = str(stanza)
+        for item in re.split("(<.*?>)(<.*?/.*?>)", stanzastr):
+            if item:
+                log.debug(item)
+        log.debug('-'*15)
+
+    @log_calls('OmemoPlugin')
+    def handle_outgoing_stanza(self, event):
+        try:
+            if not event.msg_iq.getTag('body'):
+                return
+
+            account = event.conn.name
+            state = self.get_omemo_state(account)
+            full_jid = str(event.msg_iq.getAttr('to'))
+            to_jid = gajim.get_jid_without_resource(full_jid)
+            if not state.encryption.is_active(to_jid):
+                return
+
+            # Delete previous Message out of Correction Message Stanza
+            if event.msg_iq.getTag('replace', namespace=NS_CORRECT):
+                event.msg_iq.delChild('encrypted')
+
+            plaintext = event.msg_iq.getBody().encode('utf8')
+
+            msg_dict = state.create_msg(
+                gajim.get_jid_from_account(account), to_jid, plaintext)
+            if not msg_dict:
+                return True
+
+            encrypted_node = OmemoMessage(msg_dict)
+            event.msg_iq.delChild('body')
+            event.msg_iq.addChild(node=encrypted_node)
+            store = Node('store', attrs={'xmlns': NS_HINTS})
+            event.msg_iq.addChild(node=store)
+            self.print_msg_to_log(event.msg_iq)
+        except Exception as e:
+            log.debug(e)
+            return True
+
+    @log_calls('OmemoPlugin')
+    def omemo_enable_for(self, jid, account):
+        """ Used by the ui to enable omemo for a specified contact
+            If you want to activate OMEMO check first if a Ui Object
+            exists for the Contact. If it exists use Ui.activate_omemo().
+            Only if there is no Ui Object for the contact this function
+            is to be used.
+        """
+        state = self.get_omemo_state(account)
+        state.encryption.activate(jid)
+
+    @log_calls('OmemoPlugin')
+    def omemo_disable_for(self, contact):
+        """ Used by the ui to disable omemo for a specified contact
+            WARNING - OMEMO should only be disabled through
+            Userinteraction with the Ui.
+        """
+        account = contact.account.name
+        state = self.get_omemo_state(account)
+        state.encryption.deactivate(contact.jid)
+
+
+@log_calls('OmemoPlugin')
+def anydup(thelist):
+    seen = set()
+    for x in thelist:
+        if x in seen:
+            return True
+        seen.add(x)
+    return False

omemo/config_dialog.ui

+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="2.16"/>
+  <!-- interface-naming-policy toplevel-contextual -->
+  <object class="GtkListStore" id="account_store">
+    <columns>
+      <!-- column-name accountname -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkListStore" id="deviceid_store">
+    <columns>
+      <!-- column-name Device -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkListStore" id="fingerprint_store">
+    <columns>
+      <!-- column-name id -->
+      <column type="gint"/>
+      <!-- column-name screenname -->
+      <column type="gchararray"/>
+      <!-- column-name trust -->
+      <column type="gchararray"/>
+      <!-- column-name fingerprint -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkNotebook" id="notebook1">
+    <property name="visible">True</property>
+    <property name="can_focus">True</property>
+    <child>
+      <object class="GtkVBox" id="vbox1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="border_width">12</property>
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkHBox" id="hbox2">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkLabel" id="label4">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label" translatable="yes" comments="label for account selector">&lt;b&gt;Account:&lt;/b&gt;</property>
+                <property name="use_markup">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkComboBox" id="account_combobox">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="model">account_store</property>
+                <signal name="changed" handler="account_combobox_changed_cb" swapped="no"/>
+                <child>
+                  <object class="GtkCellRendererText" id="cellrenderertext1"/>
+                  <attributes>
+                    <attribute name="text">0</attribute>
+                  </attributes>
+                </child>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkLabel" id="fingerprint_label_desc">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label" translatable="yes" comments="Descriptive label">Own Fingerprint:</property>
+                <attributes>
+                  <attribute name="weight" value="bold"/>
+                </attributes>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkLabel" id="fingerprint_label">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label">&lt;tt&gt;-------- -------- -------- -------- --------	&lt;/tt&gt;</property>
+                <property name="use_markup">True</property>
+                <property name="selectable">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+    <child type="tab">
+      <object class="GtkLabel" id="label1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes" comments="tab label">Own Fingerprints</property>
+      </object>
+      <packing>
+        <property name="tab_fill">False</property>
+      </packing>
+    </child>
+    <child>
+      <object class="GtkVBox" id="vbox4">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="border_width">12</property>
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkScrolledWindow" id="scrolledwindow1">
+            <property name="height_request">200</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="hscrollbar_policy">automatic</property>
+            <property name="vscrollbar_policy">automatic</property>
+            <child>
+              <object class="GtkTreeView" id="fingerprint_view">
+                <property name="height_request">300</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="model">fingerprint_store</property>
+                <property name="search_column">0</property>
+                <property name="tooltip_column">3</property>
+                <signal name="button-press-event" handler="fpr_button_pressed_cb" swapped="no"/>
+                <child>
+                  <object class="GtkTreeViewColumn" id="name_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Name</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext2"/>
+                      <attributes>
+                        <attribute name="text">1</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="trust_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Trust</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertoggle1"/>
+                      <attributes>
+                        <attribute name="text">2</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="fingerprint_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Fingerprint</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext4"/>
+                      <attributes>
+                        <attribute name="markup">3</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox3">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkButton" id="trust_button">
+                <property name="label" translatable="yes" comments="button">Trust/Revoke Fingerprint</property>
+                <property name="width_request">200</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <signal name="clicked" handler="trust_button_clicked_cb" swapped="no"/>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+      <packing>
+        <property name="position">1</property>
+      </packing>
+    </child>
+    <child type="tab">
+      <object class="GtkLabel" id="label2">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes" comments="tab label">Known Fingerprints</property>
+      </object>
+      <packing>
+        <property name="position">1</property>
+        <property name="tab_fill">False</property>
+      </packing>
+    </child>
+    <child>
+      <object class="GtkVBox" id="vbox3">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="border_width">12</property>
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkLabel" id="label5">
+            <property name="height_request">25</property>
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="xalign">0</property>
+            <property name="label" translatable="yes">Published Devices</property>
+            <attributes>
+              <attribute name="style" value="normal"/>
+              <attribute name="weight" value="bold"/>
+            </attributes>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="padding">7</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkScrolledWindow" id="scrolledwindow2">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="hscrollbar_policy">never</property>
+            <property name="vscrollbar_policy">automatic</property>
+            <child>
+              <object class="GtkTreeView" id="deviceid_view">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="model">deviceid_store</property>
+                <property name="search_column">0</property>
+                <child>
+                  <object class="GtkTreeViewColumn" id="deviceid_column">
+                    <property name="title" translatable="yes">Device ID</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext3"/>
+                      <attributes>
+                        <attribute name="text">0</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox4">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkButton" id="cleardevice_button">
+                <property name="label" translatable="yes">Clear Devices</property>
+                <property name="width_request">160</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <signal name="clicked" handler="cleardevice_button_clicked_cb" swapped="no"/>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkButton" id="refresh">
+                <property name="label">gtk-refresh</property>
+                <property name="width_request">160</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <property name="use_stock">True</property>
+                <signal name="clicked" handler="refresh_button_clicked_cb" swapped="no"/>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="position">2</property>
+          </packing>
+        </child>
+      </object>
+      <packing>
+        <property name="position">2</property>
+      </packing>
+    </child>
+    <child type="tab">
+      <object class="GtkLabel" id="label3">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes">Clear Devices</property>
+      </object>
+      <packing>
+        <property name="position">2</property>
+        <property name="tab_fill">False</property>
+      </packing>
+    </child>
+  </object>
+  <object class="GtkMenu" id="fprclipboard_menu">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <child>
+      <object class="GtkMenuItem" id="copyfprclipboard_item">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes" comments="Context menu item">Copy to clipboard</property>
+        <property name="use_underline">True</property>
+        <signal name="activate" handler="clipboard_button_cb" swapped="no"/>
+      </object>
+    </child>
+  </object>
+</interface>

omemo/fpr_dialog.ui

+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="2.16"/>
+  <!-- interface-naming-policy toplevel-contextual -->
+  <object class="GtkListStore" id="account_store">
+    <columns>
+      <!-- column-name accountname -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkListStore" id="fingerprint_store">
+    <columns>
+      <!-- column-name id -->
+      <column type="gint"/>
+      <!-- column-name screenname -->
+      <column type="gchararray"/>
+      <!-- column-name trust -->
+      <column type="gchararray"/>
+      <!-- column-name fingerprint -->
+      <column type="gchararray"/>
+    </columns>
+  </object>
+  <object class="GtkNotebook" id="notebook1">
+    <property name="visible">True</property>
+    <property name="can_focus">True</property>
+    <signal name="switch-page" handler="update_context_list" after="yes" swapped="no"/>
+    <child>
+      <object class="GtkVBox" id="vbox4">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="border_width">12</property>
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkScrolledWindow" id="scrolledwindow1">
+            <property name="height_request">200</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="hscrollbar_policy">automatic</property>
+            <property name="vscrollbar_policy">automatic</property>
+            <child>
+              <object class="GtkTreeView" id="fingerprint_view">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="model">fingerprint_store</property>
+                <property name="search_column">0</property>
+                <property name="tooltip_column">3</property>
+                <signal name="button-press-event" handler="fpr_button_pressed_cb" swapped="no"/>
+                <child>
+                  <object class="GtkTreeViewColumn" id="name_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Name</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext2"/>
+                      <attributes>
+                        <attribute name="text">1</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="trust_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Trust</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertoggle1"/>
+                      <attributes>
+                        <attribute name="text">2</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="fingerprint_column">
+                    <property name="resizable">True</property>
+                    <property name="title">Fingerprint</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext4"/>
+                      <attributes>
+                        <attribute name="markup">3</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox3">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkButton" id="trust_button">
+                <property name="label" translatable="yes" comments="button">Trust/Revoke Fingerprint</property>
+                <property name="width_request">200</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <signal name="clicked" handler="trust_button_clicked_cb" swapped="no"/>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+    <child type="tab">
+      <object class="GtkLabel" id="label3">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes" comments="tab label">Contact</property>
+      </object>
+      <packing>
+        <property name="tab_fill">False</property>
+      </packing>
+    </child>
+    <child>
+      <object class="GtkVBox" id="vbox1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="border_width">12</property>
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkHBox" id="hbox1">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">10</property>
+            <child>
+              <object class="GtkLabel" id="fingerprint_label_desc1">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label" translatable="yes" comments="Descriptive label">Own Fingerprint:</property>
+                <attributes>
+                  <attribute name="weight" value="bold"/>
+                </attributes>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkLabel" id="fingerprint_label_own">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label">&lt;tt&gt;-------- -------- -------- -------- --------	&lt;/tt&gt;</property>
+                <property name="use_markup">True</property>
+                <property name="selectable">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkScrolledWindow" id="scrolledwindow2">
+            <property name="height_request">100</property>
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="hscrollbar_policy">automatic</property>
+            <property name="vscrollbar_policy">automatic</property>
+            <child>
+              <object class="GtkTreeView" id="fingerprint_view_own">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="has_tooltip">True</property>
+                <property name="model">fingerprint_store</property>
+                <property name="headers_clickable">False</property>
+                <property name="search_column">0</property>
+                <property name="tooltip_column">3</property>
+                <signal name="button-press-event" handler="fpr_button_pressed_cb" swapped="no"/>
+                <child>
+                  <object class="GtkTreeViewColumn" id="name_column1">
+                    <property name="resizable">True</property>
+                    <property name="title">Name</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext1"/>
+                      <attributes>
+                        <attribute name="text">1</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="trust_column1">
+                    <property name="resizable">True</property>
+                    <property name="title">Trust</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertoggle2"/>
+                      <attributes>
+                        <attribute name="text">2</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="fingerprint_column1">
+                    <property name="resizable">True</property>
+                    <property name="title">Fingerprint</property>
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderertext3"/>
+                      <attributes>
+                        <attribute name="markup">3</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkHBox" id="hbox4">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="spacing">5</property>
+            <child>
+              <object class="GtkButton" id="trust_button1">
+                <property name="label" translatable="yes" comments="button">Trust/Revoke Fingerprint</property>
+                <property name="width_request">200</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">True</property>
+                <signal name="clicked" handler="trust_button_clicked_cb" swapped="no"/>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">0</property>
+              </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">2</property>
+          </packing>
+        </child>
+      </object>
+      <packing>
+        <property name="position">1</property>
+      </packing>
+    </child>
+    <child type="tab">
+      <object class="GtkLabel" id="label1">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes">Own Devices</property>
+      </object>
+      <packing>
+        <property name="position">1</property>
+        <property name="tab_fill">False</property>
+      </packing>
+    </child>
+  </object>
+  <object class="GtkMenu" id="fprclipboard_menu">
+    <property name="visible">True</property>
+    <property name="can_focus">False</property>
+    <child>
+      <object class="GtkMenuItem" id="copyfprclipboard_item">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes" comments="Context menu item">Copy to clipboard</property>
+        <property name="use_underline">True</property>
+        <signal name="activate" handler="clipboard_button_cb" swapped="no"/>
+      </object>
+    </child>
+  </object>
+</interface>

omemo/lib/python-omemo/.ackrc

+--ignore-dir 
+    .tox
+
+--ignore-dir 
+    dist
+
+--ignore-dir 
+    .venv
+
+--ignore-dir 
+    .ropeproject
+
+--ignore-dir 
+    src/omemo.egg-info/
+
+--ignore-file
+ext:pyc
+--ignore-file
+match:.coverage.python

omemo/lib/python-omemo/.bumpversion.cfg

+[bumpversion]
+current_version = 0.1.0
+commit = True
+tag = True
+
+[bumpversion:file:setup.py]
+
+[bumpversion:file:docs/conf.py]
+
+[bumpversion:file:src/omemo/__init__.py]
+

omemo/lib/python-omemo/.cookiecutterrc

+# This file exists so you can easily regenerate your project.
+#
+# `cookiepatcher` is a convenient shim around `cookiecutter`
+# for regenerating projects (it will generate a .cookiecutterrc 
+# automatically for any template). To use it:
+#
+#    pip install cookiepatcher
+#    cookiepatcher gh:ionelmc/cookiecutter-pylibrary project-path
+#
+# See:
+#    https://pypi.python.org/pypi/cookiecutter
+#
+# Alternatively, you can run:
+#
+#    cookiecutter --overwrite-if-exists --config-file=project-path/.cookiecutterrc gh:ionelmc/cookiecutter-pylibrary
+
+default_context:
+
+    appveyor:                  'yes'
+    bin_name:                  'omemo'
+    c_extension_cython:        'no'
+    c_extension_optional:      'no'
+    c_extension_support:       'no'
+    codacy:                    'no'
+    codeclimate:               'no'
+    codecov:                   'yes'
+    command_line_interface:    'no'
+    coveralls:                 'no'
+    distribution_name:         'python-omemo'
+    email:                     'bahtiar@gadimov.de'
+    full_name:                 'Bahtiar `kalkin-` Gadimov'
+    github_username:           'kalkin'
+    landscape:                 'no'
+    package_name:              'omemo'
+    project_name:              'Python OMEMO Library'
+    project_short_description: 'This is an implementation o*OMEMO Multi-End Message and Object Encryption** in Python.'
+    release_date:              'today'
+    repo_name:                 'python-omemo'
+    requiresio:                'yes'
+    scrutinizer:               'no'
+    sphinx_theme:              'readthedocs'
+    test_matrix_configurator:  'no'
+    test_runner:               'pytest'
+    travis:                    'yes'
+    version:                   '0.1.0'
+    website:                   'https://github.com/omemo'
+    year:                      'now'

omemo/lib/python-omemo/.coveragerc

+[paths]
+source = src
+
+[run]
+branch = True
+source = src
+parallel = true
+
+[report]
+show_missing = true
+precision = 2
+omit = *migrations*

omemo/lib/python-omemo/.editorconfig

+# see http://editorconfig.org
+root = true
+
+[*]
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+charset = utf-8
+
+[*.{bat,cmd,ps1}]
+end_of_line = crlf

omemo/lib/python-omemo/.gitignore

+*.py[cod]
+
+# C extensions
+*.so
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+eggs
+.eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+lib
+lib64
+venv*/
+pyvenv*/
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.tox
+.coverage.*
+nosetests.xml
+coverage.xml
+htmlcov
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+.idea
+*.iml
+*.komodoproject
+
+# Complexity
+output/*.html
+output/*/index.html
+
+# Sphinx
+docs/_build
+
+.DS_Store
+*~
+.*.sw[po]
+.build
+.ve
+.env
+.cache
+.pytest
+.bootstrap
+.appveyor.token
+*.bak

omemo/lib/python-omemo/.travis.yml

+language: python
+python: '3.5'
+sudo: false
+env:
+  global:
+    - LD_PRELOAD=/lib/x86_64-linux-gnu/libSegFault.so
+    - SEGFAULT_SIGNALS=all
+  matrix:
+    - TOXENV=check
+
+    - TOXENV=py27-cover,codecov
+    - TOXENV=py27-nocov
+    - TOXENV=py33-cover,codecov
+    - TOXENV=py33-nocov
+    - TOXENV=py34-cover,codecov
+    - TOXENV=py34-nocov
+    - TOXENV=py35-cover,codecov
+    - TOXENV=py35-nocov
+    - TOXENV=pypy-cover,codecov
+    - TOXENV=pypy-nocov
+before_install:
+  - python --version
+  - uname -a
+  - lsb_release -a
+install:
+  - pip install tox
+  - virtualenv --version
+  - easy_install --version
+  - pip --version
+  - tox --version
+script:
+  - tox -v
+after_failure:
+  - more .tox/log/* | cat
+  - more .tox/*/log/* | cat
+before_cache:
+  - rm -rf $HOME/.cache/pip/log
+cache:
+  directories:
+    - $HOME/.cache/pip
+notifications:
+  email:
+    on_success: never
+    on_failure: always

omemo/lib/python-omemo/AUTHORS.rst

+
+Authors
+=======
+
+* Bahtiar `kalkin-` Gadimov - https://github.com/kalkin
+* Daniel Gultsch - https://github.com/inputmice
+* Tarek Galal - https://github.com/tgalal (original axolotl store implementation)

omemo/lib/python-omemo/CHANGELOG.rst

+
+Changelog
+=========
+
+0.1.0 (2016-01-11)
+-----------------------------------------
+
+* First release on PyPI.

omemo/lib/python-omemo/CONTRIBUTING.rst

+.. _c4
+=====================================
+Collective Code Construction Contract
+=====================================
+
+
+The **Collective Code Construction Contract (C4)** is an evolution of the
+`github.com Fork + Pull Model
+<https://help.github.com/articles/using-pull-requests/>`_, aimed at providing an
+optimal collaboration model for free software projects. This is revision 1 of
+the C4 specification.
+
+License
+=======
+Copyright (c) 2009-2015 Pieter Hintjens.
+
+This Specification 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 Specification 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>.  
+
+Language
+========
+
+The key words "**MUST**", "**MUST NOT**", "**REQUIRED**", "**SHALL**", "**SHALL NOT**", "**SHOULD**",
+"**SHOULD NOT**", "**RECOMMENDED**", "**MAY**", and "**OPTIONAL**" in this document are to be
+interpreted as described in `RFC 2119 <https://tools.ietf.org/html/rfc2119>`_.
+
+Goals
+=====
+
+C4 is meant to provide a reusable optimal collaboration model for open source
+software projects. It has these specific goals:
+
+- To maximize the scale of the community around a project, by reducing the
+  friction for new Contributors and creating a scaled participation model with
+  strong positive feedbacks;
+
+- To relieve dependencies on key individuals by separating different skill sets
+  so that there is a larger pool of competence in any required domain;
+
+- To allow the project to develop faster and more accurately, by increasing the
+  diversity of the decision making process;
+
+- To support the natural life cycle of project versions from experimental
+  through to stable, by allowing safe experimentation, rapid failure, and
+  isolation of stable code;
+
+- To reduce the internal complexity of project repositories, thus making it
+  easier for Contributors to participate and reducing the scope for error;
+
+- To enforce collective ownership of the project, which increases economic
+  incentive to Contributors and reduces the risk of hijack by hostile entities.
+
+Design
+======
+Preliminaries
+-------------
+- The project **SHALL** use the git distributed revision control system.
+
+- The project **SHALL** be hosted on github.com or equivalent, herein called the
+  "Platform".
+
+- The project **SHALL** use the Platform issue tracker.
+
+- The project **SHOULD** have clearly documented guidelines for code style.
+
+- A "Contributor" is a person who wishes to provide a patch, being a set of
+  commits that solve some clearly identified problem.
+
+- A "Maintainer" is a person who merges patches to the project. Maintainers are
+  not developers; their job is to enforce process.
+
+- Contributors **SHALL NOT** have commit access to the repository unless they are
+  also Maintainers.
+
+- Maintainers **SHALL** have commit access to the repository.
+
+- Everyone, without distinction or discrimination, **SHALL** have an equal right to
+  become a Contributor under the terms of this contract.
+
+Licensing and Ownership
+-----------------------
+
+- The project **SHALL** use a share-alike license, such as the GPLv3 or a variant
+  thereof (LGPL, AGPL), or the MPLv2.
+
+- All contributions to the project source code ("patches") **SHALL** use the same
+  license as the project.
+
+- All patches are owned by their authors. There **SHALL NOT** be any copyright
+  assignment process.
+
+- The copyrights in the project **SHALL** be owned collectively by all its
+  Contributors.
+
+- Each Contributor **SHALL** be responsible for identifying themselves in the
+  project Contributor list.
+
+Patch Requirements
+------------------
+
+- Maintainers and Contributors **MUST** have a Platform account and **SHOULD**
+  use their real names or a well-known alias.
+
+- A patch **SHOULD** be a minimal and accurate answer to exactly one identified and
+  agreed problem.
+
+- A patch **MUST** adhere to the code style guidelines of the project if these are
+  defined.
+
+- A patch **MUST** adhere to the "Evolution of Public Contracts" guidelines defined
+  below.
+
+- A patch **SHALL NOT** include non-trivial code from other projects unless the
+  Contributor is the original author of that code.
+
+- A patch **MUST** compile cleanly and pass project self-tests on at least the
+  principle target platform.
+
+- A patch commit message **SHOULD** consist of a single short (less than 50
+  character) line summarizing the change, optionally followed by a blank line
+  and then a more thorough description.
+
+- A "Correct Patch" is one that satisfies the above requirements.
+
+Development Process
+-------------------
+
+- Change on the project **SHALL** be governed by the pattern of accurately
+  identifying problems and applying minimal, accurate solutions to these
+  problems.
+
+- To request changes, a user **SHOULD** log an issue on the project Platform issue
+  tracker.
+
+- The user or Contributor **SHOULD** write the issue by describing the problem they
+  face or observe.
+
+- The user or Contributor **SHOULD** seek consensus on the accuracy of their
+  observation, and the value of solving the problem.
+
+- Users **SHALL NOT** log feature requests, ideas, suggestions, or any solutions to
+  problems that are not explicitly documented and provable.
+
+- Thus, the release history of the project **SHALL** be a list of meaningful issues
+  logged and solved.
+
+- To work on an issue, a Contributor **SHALL** fork the project repository and then
+  work on their forked repository.
+
+- To submit a patch, a Contributor **SHALL** create a Platform pull request back to
+  the project.
+
+- A Contributor **SHALL NOT** commit changes directly to the project.
+
+- If the Platform implements pull requests as issues, a Contributor **MAY**
+  directly send a pull request without logging a separate issue.
+
+- To discuss a patch, people **MAY** comment on the Platform pull request, on the
+  commit, or elsewhere.
+
+- To accept or reject a patch, a Maintainer **SHALL** use the Platform interface.
+
+- Maintainers **SHOULD NOT** merge their own patches except in exceptional cases,
+  such as non-responsiveness from other Maintainers for an extended period (more
+  than 1-2 days).
+
+- Maintainers **SHALL NOT** make value judgments on correct patches.
+
+- Maintainers **SHALL** merge correct patches from other Contributors rapidly.
+
+- The Contributor **MAY** tag an issue as "Ready" after making a pull request for
+  the issue.
+
+- The user who created an issue **SHOULD** close the issue after checking the patch
+  is successful.
+
+- Maintainers **SHOULD** ask for improvements to incorrect patches and
+  **SHOULD** reject incorrect patches if the Contributor does not respond
+  constructively.
+
+- Any Contributor who has value judgments on a correct patch **SHOULD** express
+  these via their own patches.
+
+- Maintainers **MAY** commit changes to non-source documentation directly to the
+  project.
+
+Creating Stable Releases
+------------------------
+
+- The project **SHALL** have one branch ("master") that always holds the latest
+  in-progress version and **SHOULD** always build.
+
+- The project **SHALL NOT** use topic branches for any reason. Personal forks
+  **MAY** use topic branches.
+
+- To make a stable release someone **SHALL** fork the repository by copying it and
+  thus become maintainer of this repository.
+
+- Forking a project for stabilization **MAY** be done unilaterally and without
+  agreement of project maintainers.
+
+- A stabilization project **SHOULD** be maintained by the same process as the main
+  project.
+
+- A patch to a stabilization project declared "stable" **SHALL** be accompanied by
+  a reproducible test case.
+
+Evolution of Public Contracts
+-----------------------------
+
+- All Public Contracts (APIs or protocols) **SHALL** be documented.
+
+- All Public Contracts **SHOULD** have space for extensibility and experimentation.
+
+- A patch that modifies a stable Public Contract **SHOULD** not break existing
+  applications unless there is overriding consensus on the value of doing this.
+
+- A patch that introduces new features to a Public Contract **SHOULD** do so using
+  new names.
+
+- Old names **SHOULD** be deprecated in a systematic fashion by marking new names
+  as "experimental" until they are stable, then marking the old names as
+  "deprecated".
+
+- When sufficient time has passed, old deprecated names **SHOULD** be marked
+  "legacy" and eventually removed.
+
+- Old names **SHALL NOT** be reused by new features.
+
+- When old names are removed, their implementations **MUST** provoke an exception
+  (assertion) if used by applications.
+
+Project Administration
+----------------------
+
+- The project founders **SHALL** act as Administrators to manage the set of project
+  Maintainers.
+
+- The Administrators **SHALL** ensure their own succession over time by promoting
+  the most effective Maintainers.
+
+- A new Contributor who makes a correct patch **SHALL** be invited to become a
+  Maintainer.
+
+- Administrators **MAY** remove Maintainers who are inactive for an extended period
+  of time, or who repeatedly fail to apply this process accurately.
+
+- Administrators **SHOULD** block or ban "bad actors" who cause stress and pain to
+  others in the project. This should be done after public discussion, with a
+  chance for all parties to speak. A bad actor is someone who repeatedly ignores
+  the rules and culture of the project, who is needlessly argumentative or
+  hostile, or who is offensive, and who is unable to self-correct their behavior
+  when asked to do so by others.
+
+Further Reading
+---------------
+
+- Argyris' Models 1 and 2 - the goals of C4.1 are consistent with Argyris'
+  Model 2.
+
+- Toyota Kata - covering the Improvement Kata (fixing problems one at a time)
+  and the Coaching Kata (helping others to learn the Improvement Kata).
+
+Implementations
+---------------
+
+- The ZeroMQ community uses the C4.1 process for many projects.
+- OSSEC uses the C4.1 process.
+- The Machinekit community uses the C4.1 process.
+

omemo/lib/python-omemo/COPYING

+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
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+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+

omemo/lib/python-omemo/MANIFEST.in

+graft docs
+graft examples
+graft src
+graft ci
+graft tests
+
+include .bumpversion.cfg
+include .coveragerc
+include .cookiecutterrc
+include .editorconfig
+include .isort.cfg
+
+include AUTHORS.rst
+include CHANGELOG.rst
+include CONTRIBUTING.rst
+include COPYING
+include README.rst
+
+include tox.ini .travis.yml appveyor.yml .ackrc
+
+global-exclude *.py[cod] __pycache__ *.so *.dylib

omemo/lib/python-omemo/README.rst

+========
+Overview
+========
+
+.. start-badges
+
+.. list-table::
+    :stub-columns: 1
+
+    * - docs
+      - |docs|
+    * - tests
+      - | |travis| |appveyor| |requires|
+        | |codecov|
+        |
+    * - package
+      - |version| |downloads| |wheel| |supported-versions| |supported-implementations|
+
+.. |docs| image:: https://readthedocs.org/projects/python-omemo/badge/?style=flat
+    :target: https://readthedocs.org/projects/python-omemo
+    :alt: Documentation Status
+
+.. |travis| image:: https://travis-ci.org/omemo/python-omemo.svg?branch=master
+    :alt: Travis-CI Build Status
+    :target: https://travis-ci.org/omemo/python-omemo
+
+.. |appveyor| image:: https://ci.appveyor.com/api/projects/status/github/omemo/python-omemo?branch=master&svg=true
+    :alt: AppVeyor Build Status
+    :target: https://ci.appveyor.com/project/omemo/python-omemo
+
+.. |requires| image:: https://requires.io/github/omemo/python-omemo/requirements.svg?branch=master
+    :alt: Requirements Status
+    :target: https://requires.io/github/omemo/python-omemo/requirements/?branch=master
+
+.. |codecov| image:: https://codecov.io/github/omemo/python-omemo/coverage.svg?branch=master
+    :alt: Coverage Status
+    :target: https://codecov.io/github/omemo/python-omemo
+
+.. |version| image:: https://img.shields.io/pypi/v/python-omemo.svg?style=flat
+    :alt: PyPI Package latest release
+    :target: https://pypi.python.org/pypi/python-omemo
+
+.. |downloads| image:: https://img.shields.io/pypi/dm/python-omemo.svg?style=flat
+    :alt: PyPI Package monthly downloads
+    :target: https://pypi.python.org/pypi/python-omemo
+
+.. |wheel| image:: https://img.shields.io/pypi/wheel/python-omemo.svg?style=flat
+    :alt: PyPI Wheel
+    :target: https://pypi.python.org/pypi/python-omemo
+
+.. |supported-versions| image:: https://img.shields.io/pypi/pyversions/python-omemo.svg?style=flat
+    :alt: Supported versions
+    :target: https://pypi.python.org/pypi/python-omemo
+
+.. |supported-implementations| image:: https://img.shields.io/pypi/implementation/python-omemo.svg?style=flat
+    :alt: Supported implementations
+    :target: https://pypi.python.org/pypi/python-omemo
+
+
+.. end-badges
+
+This is an implementation **OMEMO Multi-End Message and Object Encryption** in Python.
+
+
+Installation
+============
+
+::
+
+    pip install python-omemo
+
+Documentation
+=============
+
+https://python-omemo.readthedocs.org/
+
+Development
+===========
+
+To set up `python-omemo` for local development:
+
+1. `Fork python-omemo on GitHub <https://github.com/omemo/python-omemo/fork>`_.
+2. Clone your fork locally::
+
+    git clone git@github.com:your_name_here/python-omemo.git
+
+3. Create a branch for local development::
+
+    git checkout -b name-of-your-bugfix-or-feature
+
+   Now you can make your changes locally.
+
+4. Run all the checks, doc builder and spell checker with `tox <http://tox.readthedocs.org/en/latest/install.html>`_ one command::
+
+    tox
+
+Tips
+----
+
+To run a subset of tests::
+
+    tox -e envname -- py.test -k test_myfeature
+
+To run all the test environments in *parallel* (you need to ``pip install detox``)::
+
+    detox
+
+
+Contributing
+============
+
+The **Python OMEMO** project direction is the sum of documented problems:
+everybody is invited to describe and discuss a problem in the `issue
+tracker <https://github.com/omemo/python-omemo/issues>`_. Contributed solutions
+
+encourage participation.
+
+Some problem fields we initially focus on are:
+
+- Creation of a reusable python omemo implementation
+- Reusability bu the `Gajim OMEMO plugin <https://github.com/omemo/gajim-omemo>`_
+
+       

omemo/lib/python-omemo/appveyor.yml

+version: '{branch}-{build}'
+build: off
+cache:
+  - '%LOCALAPPDATA%\pip\Cache'
+environment:
+  global:
+    WITH_COMPILER: 'cmd /E:ON /V:ON /C .\ci\appveyor-with-compiler.cmd'
+  matrix:
+    - TOXENV: check
+      PYTHON_HOME: C:\Python27
+      PYTHON_VERSION: '2.7'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py27-cover,codecov'
+      TOXPYTHON: C:\Python27\python.exe
+      PYTHON_HOME: C:\Python27
+      PYTHON_VERSION: '2.7'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py27-cover,codecov'
+      TOXPYTHON: C:\Python27-x64\python.exe
+      WINDOWS_SDK_VERSION: v7.0
+      PYTHON_HOME: C:\Python27-x64
+      PYTHON_VERSION: '2.7'
+      PYTHON_ARCH: '64'
+
+    - TOXENV: 'py27-nocov'
+      TOXPYTHON: C:\Python27\python.exe
+      PYTHON_HOME: C:\Python27
+      PYTHON_VERSION: '2.7'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py27-nocov'
+      TOXPYTHON: C:\Python27-x64\python.exe
+      WINDOWS_SDK_VERSION: v7.0
+      PYTHON_HOME: C:\Python27-x64
+      PYTHON_VERSION: '2.7'
+      PYTHON_ARCH: '64'
+
+    - TOXENV: 'py34-cover,codecov'
+      TOXPYTHON: C:\Python34\python.exe
+      PYTHON_HOME: C:\Python34
+      PYTHON_VERSION: '3.4'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py34-cover,codecov'
+      TOXPYTHON: C:\Python34-x64\python.exe
+      WINDOWS_SDK_VERSION: v7.1
+      PYTHON_HOME: C:\Python34-x64
+      PYTHON_VERSION: '3.4'
+      PYTHON_ARCH: '64'
+
+    - TOXENV: 'py34-nocov'
+      TOXPYTHON: C:\Python34\python.exe
+      PYTHON_HOME: C:\Python34
+      PYTHON_VERSION: '3.4'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py34-nocov'
+      TOXPYTHON: C:\Python34-x64\python.exe
+      WINDOWS_SDK_VERSION: v7.1
+      PYTHON_HOME: C:\Python34-x64
+      PYTHON_VERSION: '3.4'
+      PYTHON_ARCH: '64'
+
+    - TOXENV: 'py35-cover,codecov'
+      TOXPYTHON: C:\Python35\python.exe
+      PYTHON_HOME: C:\Python35
+      PYTHON_VERSION: '3.5'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py35-cover,codecov'
+      TOXPYTHON: C:\Python35-x64\python.exe
+      PYTHON_HOME: C:\Python35-x64
+      PYTHON_VERSION: '3.5'
+      PYTHON_ARCH: '64'
+
+    - TOXENV: 'py35-nocov'
+      TOXPYTHON: C:\Python35\python.exe
+      PYTHON_HOME: C:\Python35
+      PYTHON_VERSION: '3.5'
+      PYTHON_ARCH: '32'
+
+    - TOXENV: 'py35-nocov'
+      TOXPYTHON: C:\Python35-x64\python.exe
+      PYTHON_HOME: C:\Python35-x64
+      PYTHON_VERSION: '3.5'
+      PYTHON_ARCH: '64'
+
+init:
+  - ps: echo $env:TOXENV
+  - ps: ls C:\Python*
+install:
+  - python -u ci\appveyor-bootstrap.py
+  - '%PYTHON_HOME%\Scripts\virtualenv --version'
+  - '%PYTHON_HOME%\Scripts\easy_install --version'
+  - '%PYTHON_HOME%\Scripts\pip --version'
+  - '%PYTHON_HOME%\Scripts\tox --version'
+test_script:
+  - '%WITH_COMPILER% %PYTHON_HOME%\Scripts\tox'
+
+on_failure:
+  - ps: dir "env:"
+  - ps: get-content .tox\*\log\*
+artifacts:
+  - path: dist\*
+
+### To enable remote debugging uncomment this (also, see: http://www.appveyor.com/docs/how-to/rdp-to-build-worker):
+# on_finish:
+#   - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))

omemo/lib/python-omemo/ci/appveyor-bootstrap.py

+"""
+AppVeyor will at least have few Pythons around so there's no point of implementing a bootstrapper in PowerShell.
+
+This is a port of https://github.com/pypa/python-packaging-user-guide/blob/master/source/code/install.ps1
+with various fixes and improvements that just weren't feasible to implement in PowerShell.
+"""
+from __future__ import print_function
+from os import environ
+from os.path import exists
+from subprocess import check_call
+
+try:
+    from urllib.request import urlretrieve
+except ImportError:
+    from urllib import urlretrieve
+
+BASE_URL = "https://www.python.org/ftp/python/"
+GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py"
+GET_PIP_PATH = "C:\get-pip.py"
+URLS = {
+    ("2.7", "64"): BASE_URL + "2.7.10/python-2.7.10.amd64.msi",
+    ("2.7", "32"): BASE_URL + "2.7.10/python-2.7.10.msi",
+    # NOTE: no .msi installer for 3.3.6
+    ("3.3", "64"): BASE_URL + "3.3.3/python-3.3.3.amd64.msi",
+    ("3.3", "32"): BASE_URL + "3.3.3/python-3.3.3.msi",
+    ("3.4", "64"): BASE_URL + "3.4.3/python-3.4.3.amd64.msi",
+    ("3.4", "32"): BASE_URL + "3.4.3/python-3.4.3.msi",
+    ("3.5", "64"): BASE_URL + "3.5.0/python-3.5.0-amd64.exe",
+    ("3.5", "32"): BASE_URL + "3.5.0/python-3.5.0.exe",
+}
+INSTALL_CMD = {
+    # Commands are allowed to fail only if they are not the last command.  Eg: uninstall (/x) allowed to fail.
+    "2.7": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"],
+            ["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]],
+    "3.3": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"],
+            ["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]],
+    "3.4": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"],
+            ["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]],
+    "3.5": [["{path}", "/quiet", "TargetDir={home}"]],
+}
+
+
+def download_file(url, path):
+    print("Downloading: {} (into {})".format(url, path))
+    progress = [0, 0]
+
+    def report(count, size, total):
+        progress[0] = count * size
+        if progress[0] - progress[1] > 1000000:
+            progress[1] = progress[0]
+            print("Downloaded {:,}/{:,} ...".format(progress[1], total))
+
+    dest, _ = urlretrieve(url, path, reporthook=report)
+    return dest
+
+
+def install_python(version, arch, home):
+    print("Installing Python", version, "for", arch, "bit architecture to", home)
+    if exists(home):
+        return
+
+    path = download_python(version, arch)
+    print("Installing", path, "to", home)
+    success = False
+    for cmd in INSTALL_CMD[version]:
+        cmd = [part.format(home=home, path=path) for part in cmd]
+        print("Running:", " ".join(cmd))
+        try:
+            check_call(cmd)
+        except Exception as exc:
+            print("Failed command", cmd, "with:", exc)
+            if exists("install.log"):
+                with open("install.log") as fh:
+                    print(fh.read())
+        else:
+            success = True
+    if success:
+        print("Installation complete!")
+    else:
+        print("Installation failed")
+
+
+def download_python(version, arch):
+    for _ in range(3):
+        try:
+            return download_file(URLS[version, arch], "installer.exe")
+        except Exception as exc:
+            print("Failed to download:", exc)
+        print("Retrying ...")
+
+
+def install_pip(home):
+    pip_path = home + "/Scripts/pip.exe"
+    python_path = home + "/python.exe"
+    if exists(pip_path):
+        print("pip already installed.")
+    else:
+        print("Installing pip...")
+        download_file(GET_PIP_URL, GET_PIP_PATH)
+        print("Executing:", python_path, GET_PIP_PATH)
+        check_call([python_path, GET_PIP_PATH])
+
+
+def install_packages(home, *packages):
+    cmd = [home + "/Scripts/pip.exe", "install"]
+    cmd.extend(packages)
+    check_call(cmd)
+
+
+if __name__ == "__main__":
+    install_python(environ['PYTHON_VERSION'], environ['PYTHON_ARCH'], environ['PYTHON_HOME'])
+    install_pip(environ['PYTHON_HOME'])
+    install_packages(environ['PYTHON_HOME'], "setuptools>=18.0.1", "wheel", "tox", "virtualenv>=13.1.0")

omemo/lib/python-omemo/ci/appveyor-download.py

+#!/usr/bin/env python
+"""
+Use the AppVeyor API to download Windows artifacts.
+
+Taken from: https://bitbucket.org/ned/coveragepy/src/tip/ci/download_appveyor.py
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+"""
+from __future__ import unicode_literals
+
+import argparse
+import os
+import requests
+import zipfile
+
+
+def make_auth_headers():
+    """Make the authentication headers needed to use the Appveyor API."""
+    path = os.path.expanduser("~/.appveyor.token")
+    if not os.path.exists(path):
+        raise RuntimeError(
+            "Please create a file named `.appveyor.token` in your home directory. "
+            "You can get the token from https://ci.appveyor.com/api-token"
+        )
+    with open(path) as f:
+        token = f.read().strip()
+
+    headers = {
+        'Authorization': 'Bearer {}'.format(token),
+    }
+    return headers
+
+
+def download_latest_artifacts(account_project, build_id):
+    """Download all the artifacts from the latest build."""
+    if build_id is None:
+        url = "https://ci.appveyor.com/api/projects/{}".format(account_project)
+    else:
+        url = "https://ci.appveyor.com/api/projects/{}/build/{}".format(account_project, build_id)
+    build = requests.get(url, headers=make_auth_headers()).json()
+    jobs = build['build']['jobs']
+    print(u"Build {0[build][version]}, {1} jobs: {0[build][message]}".format(build, len(jobs)))
+
+    for job in jobs:
+        name = job['name']
+        print(u"  {0}: {1[status]}, {1[artifactsCount]} artifacts".format(name, job))
+
+        url = "https://ci.appveyor.com/api/buildjobs/{}/artifacts".format(job['jobId'])
+        response = requests.get(url, headers=make_auth_headers())
+        artifacts = response.json()
+
+        for artifact in artifacts:
+            is_zip = artifact['type'] == "Zip"
+            filename = artifact['fileName']
+            print(u"    {0}, {1} bytes".format(filename, artifact['size']))
+
+            url = "https://ci.appveyor.com/api/buildjobs/{}/artifacts/{}".format(job['jobId'], filename)
+            download_url(url, filename, make_auth_headers())
+
+            if is_zip:
+                unpack_zipfile(filename)
+                os.remove(filename)
+
+
+def ensure_dirs(filename):
+    """Make sure the directories exist for `filename`."""
+    dirname, _ = os.path.split(filename)
+    if dirname and not os.path.exists(dirname):
+        os.makedirs(dirname)
+
+
+def download_url(url, filename, headers):
+    """Download a file from `url` to `filename`."""
+    ensure_dirs(filename)
+    response = requests.get(url, headers=headers, stream=True)
+    if response.status_code == 200:
+        with open(filename, 'wb') as f:
+            for chunk in response.iter_content(16 * 1024):
+                f.write(chunk)
+    else:
+        print(u"    Error downloading {}: {}".format(url, response))
+
+
+def unpack_zipfile(filename):
+    """Unpack a zipfile, using the names in the zip."""
+    with open(filename, 'rb') as fzip:
+        z = zipfile.ZipFile(fzip)
+        for name in z.namelist():
+            print(u"      extracting {}".format(name))
+            ensure_dirs(name)
+            z.extract(name)
+
+parser = argparse.ArgumentParser(description='Download artifacts from AppVeyor.')
+parser.add_argument('--id',
+                    metavar='PROJECT_ID',
+                    default='omemo/python-omemo',
+                    help='Project ID in AppVeyor.')
+parser.add_argument('build',
+                    nargs='?',
+                    metavar='BUILD_ID',
+                    help='Build ID in AppVeyor. Eg: master-123')
+
+if __name__ == "__main__":
+    # import logging
+    # logging.basicConfig(level="DEBUG")
+    args = parser.parse_args()
+    download_latest_artifacts(args.id, args.build)