runtime/WampClient.py
author Edouard Tisserant
Tue, 14 Aug 2018 13:10:15 +0200
changeset 2268 e6c9a52d3877
parent 2265 2de61e2fbf14
child 2305 56f1d8aca886
child 2306 908471b344ba
permissions -rw-r--r--
BACnet : Fixed missing header include in server.c introduced in 37ef7a3c6b8b
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz runtime.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING.Runtime file for copyrights details.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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from __future__ import absolute_import
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from __future__ import print_function
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import time
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import json
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import os
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import re
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from autobahn.twisted import wamp
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from autobahn.twisted.websocket import WampWebSocketClientFactory, connectWS
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from autobahn.wamp import types, auth
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from autobahn.wamp.serializer import MsgPackSerializer
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from twisted.internet.defer import inlineCallbacks
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from twisted.internet.protocol import ReconnectingClientFactory
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from twisted.python.components import registerAdapter
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from formless import annotate, webform
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import formless
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from nevow import tags, url, static
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mandatoryConfigItems = ["ID", "active", "realm", "url"]
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_transportFactory = None
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_WampSession = None
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_PySrv = None
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WorkingDir = None
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# Find pre-existing project WAMP config file
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_WampConf = None
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_WampSecret = None
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ExposedCalls = [
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    ("StartPLC", {}),
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    ("StopPLC", {}),
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    ("GetPLCstatus", {}),
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    ("NewPLC", {}),
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    ("MatchMD5", {}),
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    ("SetTraceVariablesList", {}),
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    ("GetTraceVariables", {}),
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    ("RemoteExec", {}),
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    ("GetLogMessage", {}),
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    ("ResetLogCount", {})
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]
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# de-activated dumb wamp config
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defaultWampConfig = {
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    "ID": "wamptest",
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    "active": False,
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    "realm": "Automation",
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    "url": "ws://127.0.0.1:8888"
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}
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# Those two lists are meant to be filled by customized runtime
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# or User python code.
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""" crossbar Events to register to """
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SubscribedEvents = []
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""" things to do on join (callables) """
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DoOnJoin = []
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lastKnownConfig = None
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def GetCallee(name):
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    """ Get Callee or Subscriber corresponding to '.' spearated object path """
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    names = name.split('.')
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    obj = _PySrv.plcobj
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    while names:
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        obj = getattr(obj, names.pop(0))
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    return obj
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class WampSession(wamp.ApplicationSession):
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    def onConnect(self):
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        if "secret" in self.config.extra:
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            user = self.config.extra["ID"]
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            self.join(u"Automation", [u"wampcra"], user)
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        else:
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            self.join(u"Automation")
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    def onChallenge(self, challenge):
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        if challenge.method == u"wampcra":
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            if "secret" in self.config.extra:
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                secret = self.config.extra["secret"].encode('utf8')
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                signature = auth.compute_wcs(
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                    secret, challenge.extra['challenge'].encode('utf8'))
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                return signature.decode("ascii")
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            else:
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   113
                raise Exception("no secret given for authentication")
1893
971de876b1af WAMP runtime : changes from dporopat and agregorcic, adding CRA (-s) and changed way to load WAMP conf (-c)
Edouard Tisserant
parents: 1892
diff changeset
   114
        else:
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   115
            raise Exception(
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   116
                "don't know how to handle authmethod {}".format(challenge.method))
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
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   117
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
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   118
    @inlineCallbacks
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   119
    def onJoin(self, details):
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        global _WampSession
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   121
        _WampSession = self
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e8cf68d69447 Enforced check_source.sh pep8 and pylint rules.
Edouard Tisserant
parents: 1900
diff changeset
   122
        ID = self.config.extra["ID"]
2206
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   123
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   124
        for name, kwargs in ExposedCalls:
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dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   125
            try:
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parents: 2205
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   126
                registerOptions = types.RegisterOptions(**kwargs)
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dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   127
            except TypeError as e:
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dporopat <denis.poropat@smarteh.si>
parents: 2205
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   128
                registerOptions = None
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parents: 2205
diff changeset
   129
                print(_("TypeError register option: {}".format(e)))
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dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   130
2197
bec80ff35282 #2486 Unnecessary variable removed.
dporopat <denis.poropat@smarteh.si>
parents: 2196
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   131
            yield self.register(GetCallee(name), u'.'.join((ID, name)), registerOptions)
1439
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parents:
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   132
1446
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Edouard Tisserant
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   133
        for name in SubscribedEvents:
1898
d2dbdeffc426 runtime/Wamp : adapt to unicode being enforced in latest crossbar API. Updated some documentation, to explain why there is unused definitions like SubscribedEvents or DoOnJoin.
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   134
            yield self.subscribe(GetCallee(name), unicode(name))
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   135
4963e3816641 Split runtime's twisted modules import and setup to ease runtime extensions hotpatching
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   136
        for func in DoOnJoin:
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   137
            yield func(self)
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parents: 1445
diff changeset
   138
2194
35d6b9321ffd #2486 Updated wamp test project to work with the latest Crossbar version.
dporopat <denis.poropat@smarteh.si>
parents: 2193
diff changeset
   139
        print(_('WAMP session joined (%s) by:' % time.ctime()), ID)
35d6b9321ffd #2486 Updated wamp test project to work with the latest Crossbar version.
dporopat <denis.poropat@smarteh.si>
parents: 2193
diff changeset
   140
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parents:
diff changeset
   141
    def onLeave(self, details):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
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   142
        global _WampSession, _transportFactory
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
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   143
        super(WampSession, self).onLeave(details)
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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parents:
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   144
        _WampSession = None
2201
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   145
        _transportFactory = None
1890
916099cb8d22 non significant print syntax change. ready for py3.
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parents: 1881
diff changeset
   146
        print(_('WAMP session left'))
1439
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parents:
diff changeset
   147
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   148
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Edouard Tisserant
parents: 1440
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   149
class ReconnectingWampWebSocketClientFactory(WampWebSocketClientFactory, ReconnectingClientFactory):
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diff changeset
   150
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   151
    def __init__(self, config, *args, **kwargs):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
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parents: 2199
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   152
        global _transportFactory
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
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parents: 2194
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   153
        WampWebSocketClientFactory.__init__(self, *args, **kwargs)
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   154
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   155
        try:
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parents: 2206
diff changeset
   156
            protocolOptions = config.extra.get('protocolOptions', None)
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   157
            if protocolOptions:
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   158
                self.setProtocolOptions(**protocolOptions)
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   159
            _transportFactory = self
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   160
        except Exception, e:
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   161
            print(_("Custom protocol options failed :"), e)
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   162
            _transportFactory = None
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   163
2193
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   164
    def buildProtocol(self, addr):
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   165
        self.resetDelay()
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   166
        return ReconnectingClientFactory.buildProtocol(self, addr)
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   167
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Edouard Tisserant
parents: 1440
diff changeset
   168
    def clientConnectionFailed(self, connector, reason):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   169
        if self.continueTrying:
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   170
            print(_("WAMP Client connection failed (%s) .. retrying ..") %
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   171
                  time.ctime())
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Edouard Tisserant
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   172
            super(ReconnectingWampWebSocketClientFactory,
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Edouard Tisserant
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diff changeset
   173
                  self).clientConnectionFailed(connector, reason)
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   174
        else:
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   175
            del connector
1751
c28db6f7616b clean-up: fix PEP8 E301 expected 1 blank line, found 0
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1748
diff changeset
   176
1441
826730e60407 Added auto-reconnect for runtime. Fixed Beremiz closing problem caused by remaining twisted reactor thread in IDE.
Edouard Tisserant
parents: 1440
diff changeset
   177
    def clientConnectionLost(self, connector, reason):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   178
        if self.continueTrying:
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diff changeset
   179
            print(_("WAMP Client connection lost (%s) .. retrying ..") %
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   180
                  time.ctime())
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diff changeset
   181
            super(ReconnectingWampWebSocketClientFactory,
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diff changeset
   182
                  self).clientConnectionFailed(connector, reason)
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
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parents: 2199
diff changeset
   183
        else:
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   184
            del connector
1441
826730e60407 Added auto-reconnect for runtime. Fixed Beremiz closing problem caused by remaining twisted reactor thread in IDE.
Edouard Tisserant
parents: 1440
diff changeset
   185
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   186
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   187
def CheckConfiguration(WampClientConf):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   188
    url = WampClientConf["url"]
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   189
    if not IsCorrectUri(url):
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
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diff changeset
   190
        raise annotate.ValidateError(
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Edouard Tisserant
parents: 2223
diff changeset
   191
            {"url": "Invalid URL: {}".format(url)},
2223
909216419e45 Fixed small typo in error message.
Edouard Tisserant
parents: 2221
diff changeset
   192
            _("WAMP configuration error:"))
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   193
2248
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Edouard Tisserant
parents: 2223
diff changeset
   194
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   195
def GetConfiguration():
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   196
    global lastKnownConfig
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Edouard Tisserant
parents: 2215
diff changeset
   197
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   198
    if os.path.exists(_WampConf):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   199
        WampClientConf = json.load(open(_WampConf))
2248
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Edouard Tisserant
parents: 2223
diff changeset
   200
    else:
2221
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
Edouard Tisserant
parents: 2220
diff changeset
   201
        WampClientConf = defaultWampConfig.copy()
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   202
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   203
    for itemName in mandatoryConfigItems:
2248
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Edouard Tisserant
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diff changeset
   204
        if WampClientConf.get(itemName, None) is None:
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
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diff changeset
   205
            raise Exception(
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   206
                _("WAMP configuration error : missing '{}' parameter.").format(itemName))
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   207
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   208
    CheckConfiguration(WampClientConf)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   209
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   210
    lastKnownConfig = WampClientConf.copy()
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   211
    return WampClientConf
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   212
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   213
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   214
def SetWampSecret(wampSecret):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   215
    with open(os.path.realpath(_WampSecret), 'w') as f:
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   216
        f.write(wampSecret)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
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parents: 2218
diff changeset
   217
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diff changeset
   218
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   219
def SetConfiguration(WampClientConf):
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   220
    global lastKnownConfig
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
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diff changeset
   221
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   222
    CheckConfiguration(WampClientConf)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   223
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   224
    lastKnownConfig = WampClientConf.copy()
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    with open(os.path.realpath(_WampConf), 'w') as f:
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        json.dump(WampClientConf, f, sort_keys=True, indent=4)
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    if 'active' in WampClientConf and WampClientConf['active']:
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        if _transportFactory and _WampSession:
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            StopReconnectWampClient()
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        StartReconnectWampClient()
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    else:
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        StopReconnectWampClient()
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    return WampClientConf
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def LoadWampSecret(secretfname):
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    WSClientWampSecret = open(secretfname, 'rb').read()
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   240
    if len(WSClientWampSecret) == 0:
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        raise Exception(_("WAMP secret empty"))
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    return WSClientWampSecret
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diff changeset
   243
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   244
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def IsCorrectUri(uri):
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   246
    return re.match(r'wss?://[^\s?:#-]+(:[0-9]+)?(/[^\s]*)?$', uri) is not None
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parents: 2199
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   248
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def RegisterWampClient(wampconf=None, wampsecret=None):
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    global _WampConf, _WampSecret
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    _WampConfDefault = os.path.join(WorkingDir, "wampconf.json")
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    _WampSecretDefault = os.path.join(WorkingDir, "wamp.secret")
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   253
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   254
    # set config file path only if not already set
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   255
    if _WampConf is None:
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   256
        # default project's wampconf has precedance over commandline given
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        if os.path.exists(_WampConfDefault) or wampconf is None:
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            _WampConf = _WampConfDefault
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        else:
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            _WampConf = wampconf
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    WampClientConf = GetConfiguration()
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    # set secret file path only if not already set
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   265
    if _WampSecret is None:
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   266
        # default project's wamp secret also
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   267
        # has precedance over commandline given
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   268
        if os.path.exists(_WampSecretDefault):
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   269
            _WampSecret = _WampSecretDefault
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   270
        else:
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            _WampSecret = wampsecret
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   273
    if _WampSecret is not None:
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        WampClientConf["secret"] = LoadWampSecret(_WampSecret)
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   275
    else:
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   276
        print(_("WAMP authentication has no secret configured"))
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        _WampSecret = _WampSecretDefault
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   278
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
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   279
    if not WampClientConf["active"]:
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        print(_("WAMP deactivated in configuration"))
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        return
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   282
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   283
    # create a WAMP application session factory
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    component_config = types.ComponentConfig(
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        realm=WampClientConf["realm"],
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   286
        extra=WampClientConf)
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   287
    session_factory = wamp.ApplicationSessionFactory(
1744
69dfdb26f600 clean-up: fix PEP8 E251 unexpected spaces around keyword / parameter equals
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   288
        config=component_config)
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   289
    session_factory.session = WampSession
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   290
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   291
    # create a WAMP-over-WebSocket transport client factory
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parents: 2206
diff changeset
   292
    ReconnectingWampWebSocketClientFactory(
2195
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parents: 2194
diff changeset
   293
        component_config,
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   294
        session_factory,
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   295
        url=WampClientConf["url"],
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   296
        serializers=[MsgPackSerializer()])
1439
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   297
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e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
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diff changeset
   298
    # start the client from a Twisted endpoint
2207
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parents: 2206
diff changeset
   299
    if _transportFactory:
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   300
        connectWS(_transportFactory)
2220
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diff changeset
   301
        print(_("WAMP client connecting to :"), WampClientConf["url"])
2207
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diff changeset
   302
        return True
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diff changeset
   303
    else:
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   304
        print(_("WAMP client can not connect to :"), WampClientConf["url"])
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
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parents: 2206
diff changeset
   305
        return False
2204
25dafeb98b55 #2486 Reconnect funtion in SaveWampClientConf function.
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parents: 2203
diff changeset
   306
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   307
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   308
def StopReconnectWampClient():
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   309
    if _transportFactory is not None:
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   310
        _transportFactory.stopTrying()
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   311
    if _WampSession is not None:
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   312
        _WampSession.leave()
2203
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parents: 2202
diff changeset
   313
2204
25dafeb98b55 #2486 Reconnect funtion in SaveWampClientConf function.
dporopat <denis.poropat@smarteh.si>
parents: 2203
diff changeset
   314
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   315
def StartReconnectWampClient():
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
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parents: 2202
diff changeset
   316
    if _WampSession:
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
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parents: 2202
diff changeset
   317
        # do reconnect
2202
237c1a2de1c8 #2486 Adding reconnect funtion to WampClient. Global TransportFactory not needed anymore.
dporopat <denis.poropat@smarteh.si>
parents: 2201
diff changeset
   318
        _WampSession.disconnect()
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   319
        return True
2204
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parents: 2203
diff changeset
   320
    else:
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   321
        # do connect
2202
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dporopat <denis.poropat@smarteh.si>
parents: 2201
diff changeset
   322
        RegisterWampClient()
237c1a2de1c8 #2486 Adding reconnect funtion to WampClient. Global TransportFactory not needed anymore.
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parents: 2201
diff changeset
   323
        return True
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   324
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   325
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
Edouard Tisserant
parents:
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   326
def GetSession():
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   327
    return _WampSession
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   328
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   329
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   330
def getWampStatus():
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diff changeset
   331
    if _transportFactory is not None:
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diff changeset
   332
        if _WampSession is not None:
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Edouard Tisserant
parents: 2223
diff changeset
   333
            if _WampSession.is_attached():
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                return "Attached"
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   335
            return "Established"
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   336
        return "Connecting"
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   337
    return "Disconnected"
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   338
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dporopat <denis.poropat@smarteh.si>
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   339
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   340
def SetServer(pysrv):
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   341
    global _PySrv
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   342
    _PySrv = pysrv
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   345
# WEB CONFIGURATION INTERFACE
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WAMP_SECRET_URL = "secret"
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webExposedConfigItems = ['active', 'url', 'ID']
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   350
def wampConfigDefault(ctx, argument):
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   351
    if lastKnownConfig is not None:
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        return lastKnownConfig.get(argument.name, None)
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   353
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   354
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   355
def wampConfig(**kwargs):
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   356
    secretfile_field = kwargs["secretfile"]
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   357
    if secretfile_field is not None:
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        secretfile = getattr(secretfile_field, "file", None)
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   359
        if secretfile is not None:
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            secret = secretfile_field.file.read()
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   361
            SetWampSecret(secret)
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   362
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   363
    newConfig = lastKnownConfig.copy()
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   364
    for argname in webExposedConfigItems:
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   365
        arg = kwargs.get(argname, None)
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   366
        if arg is not None:
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   367
            newConfig[argname] = arg
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   368
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   369
    SetConfiguration(newConfig)
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   370
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   371
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   372
class FileUploadDownload(annotate.FileUpload):
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    pass
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   374
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   375
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   376
class FileUploadDownloadRenderer(webform.FileUploadRenderer):
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   377
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   378
    def input(self, context, slot, data, name, value):
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   379
        # pylint: disable=expression-not-assigned
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   380
        slot[_("Upload:")]
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   381
        slot = webform.FileUploadRenderer.input(
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   382
            self, context, slot, data, name, value)
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   383
        download_url = data.typedValue.getAttribute('download_url')
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   384
        return slot[tags.a(href=download_url)[_("Download")]]
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   385
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   386
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   387
registerAdapter(FileUploadDownloadRenderer, FileUploadDownload,
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   388
                formless.iformless.ITypedRenderer)
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   389
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   390
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   391
def getDownloadUrl(ctx, argument):
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   392
    if lastKnownConfig is not None:
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   393
        return url.URL.fromContext(ctx).\
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   394
            child(WAMP_SECRET_URL).\
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diff changeset
   395
            child(lastKnownConfig["ID"] + ".secret")
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diff changeset
   396
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diff changeset
   397
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diff changeset
   398
webFormInterface = [
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diff changeset
   399
    ("status",
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diff changeset
   400
     annotate.String(label=_("Current status"),
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diff changeset
   401
                     immutable=True,
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diff changeset
   402
                     default=lambda *k:getWampStatus())),
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diff changeset
   403
    ("ID",
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diff changeset
   404
     annotate.String(label=_("ID"),
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diff changeset
   405
                     default=wampConfigDefault)),
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diff changeset
   406
    ("secretfile",
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diff changeset
   407
     FileUploadDownload(label=_("File containing secret for that ID"),
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diff changeset
   408
                        download_url=getDownloadUrl)),
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   409
    ("active",
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diff changeset
   410
     annotate.Boolean(label=_("Enable WAMP connection"),
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diff changeset
   411
                      default=wampConfigDefault)),
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diff changeset
   412
    ("url",
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diff changeset
   413
     annotate.String(label=_("WAMP Server URL"),
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diff changeset
   414
                     default=wampConfigDefault))]
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diff changeset
   415
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diff changeset
   416
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diff changeset
   417
def deliverWampSecret(ctx, segments):
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diff changeset
   418
    # filename = segments[1].decode('utf-8')
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diff changeset
   419
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   420
    # FIXME: compare filename to ID+".secret"
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
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diff changeset
   421
    # for now all url under /secret returns the secret
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diff changeset
   422
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diff changeset
   423
    # TODO: make beautifull message in case of exception
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diff changeset
   424
    # while loading secret (if empty or dont exist)
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diff changeset
   425
    secret = LoadWampSecret(_WampSecret)
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diff changeset
   426
    return static.Data(secret, 'application/octet-stream'), ()
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diff changeset
   427
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diff changeset
   428
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diff changeset
   429
def RegisterWebSettings(NS):
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diff changeset
   430
4195545e2d17 NevowServer : added addInfoString to allow extensions to declare some read-only strings to be displayed in settings. Also renamed addExtension in addSettings for clarity.
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diff changeset
   431
    NS.ConfigurableSettings.addSettings(
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diff changeset
   432
        "wamp",
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diff changeset
   433
        _("Wamp Settings"),
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diff changeset
   434
        webFormInterface,
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diff changeset
   435
        _("Set"),
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diff changeset
   436
        wampConfig)
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diff changeset
   437
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
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diff changeset
   438
    NS.customSettingsURLs[WAMP_SECRET_URL] = deliverWampSecret