1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8

# Copyright (C) 2017: Andrey Skvortsov

     9

#

    10

# See COPYING file for copyrights details.

    11

#

    12

# This program is free software; you can redistribute it and/or

    13

# modify it under the terms of the GNU General Public License

    14

# as published by the Free Software Foundation; either version 2

    15

# of the License, or (at your option) any later version.

    16

#

    17

# This program is distributed in the hope that it will be useful,

    18

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    19

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    20

# GNU General Public License for more details.

    21

#

    22

# You should have received a copy of the GNU General Public License

    23

# along with this program; if not, write to the Free Software

    24

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    25

    26

import os

    27

import sys

    28

import getopt

    29

import threading

    30

from threading import Thread

    31

import traceback

    32

import __builtin__

    33

import Pyro.core as pyro

    34

    35

from runtime import PLCObject, PLCprint, ServicePublisher

    36

import util.paths as paths

    37

    38

    39

def usage():

    40

    print """

    41

Usage of Beremiz PLC execution service :\n

    42

%s {[-n servicename] [-i IP] [-p port] [-x enabletaskbar] [-a autostart]|-h|--help} working_dir

    43

           -n        - zeroconf service name (default:disabled)

    44

           -i        - IP address of interface to bind to (default:localhost)

    45

           -p        - port number default:3000

    46

           -h        - print this help text and quit

    47

           -a        - autostart PLC (0:disable 1:enable) (default:0)

    48

           -x        - enable/disable wxTaskbarIcon (0:disable 1:enable) (default:1)

    49

           -t        - enable/disable Twisted web interface (0:disable 1:enable) (default:1)

    50

           -w        - web server port or "off" (default:8009)

    51

           -c        - WAMP client config file or "off" (default:wampconf.json)

    52

           -e        - python extension (absolute path .py)

    53

    54

           working_dir - directory where are stored PLC files

    55

""" % sys.argv[0]

    56

    57

    58

try:

    59

    opts, argv = getopt.getopt(sys.argv[1:], "i:p:n:x:t:a:w:c:e:h")

    60

except getopt.GetoptError, err:

    61

    # print help information and exit:

    62

    print str(err)  # will print something like "option -a not recognized"

    63

    usage()

    64

    sys.exit(2)

    65

    66

# default values

    67

given_ip = None

    68

port = 3000

    69

webport = 8009

    70

wampconf = "wampconf.json"

    71

servicename = None

    72

autostart = False

    73

enablewx = True

    74

havewx = False

    75

enabletwisted = True

    76

havetwisted = False

    77

    78

extensions = []

    79

    80

for o, a in opts:

    81

    if o == "-h":

    82

        usage()

    83

        sys.exit()

    84

    elif o == "-i":

    85

        if len(a.split(".")) == 4 or a == "localhost":

    86

            given_ip = a

    87

        else:

    88

            usage()

    89

            sys.exit()

    90

    elif o == "-p":

    91

        # port: port that the service runs on

    92

        port = int(a)

    93

    elif o == "-n":

    94

        servicename = a

    95

    elif o == "-x":

    96

        enablewx = int(a)

    97

    elif o == "-t":

    98

        enabletwisted = int(a)

    99

    elif o == "-a":

   100

        autostart = int(a)

   101

    elif o == "-w":

   102

        webport = None if a == "off" else int(a)

   103

    elif o == "-c":

   104

        wampconf = None if a == "off" else a

   105

    elif o == "-e":

   106

        extensions.append(a)

   107

    else:

   108

        usage()

   109

        sys.exit()

   110

   111

   112

beremiz_dir = paths.AbsDir(__file__)

   113

   114

if len(argv) > 1:

   115

    usage()

   116

    sys.exit()

   117

elif len(argv) == 1:

   118

    WorkingDir = argv[0]

   119

    os.chdir(WorkingDir)

   120

elif len(argv) == 0:

   121

    WorkingDir = os.getcwd()

   122

    argv = [WorkingDir]

   123

   124

if __name__ == '__main__':

   125

    __builtin__.__dict__['_'] = lambda x: x

   126

   127

   128

def Bpath(*args):

   129

    return os.path.join(beremiz_dir, *args)

   130

   131

   132

def SetupI18n():

   133

    # Import module for internationalization

   134

    import gettext

   135

   136

    # Get folder containing translation files

   137

    localedir = os.path.join(beremiz_dir, "locale")

   138

    # Get the default language

   139

    langid = wx.LANGUAGE_DEFAULT

   140

    # Define translation domain (name of translation files)

   141

    domain = "Beremiz"

   142

   143

    # Define locale for wx

   144

    loc = __builtin__.__dict__.get('loc', None)

   145

    if loc is None:

   146

        loc = wx.Locale(langid)

   147

        __builtin__.__dict__['loc'] = loc

   148

        # Define location for searching translation files

   149

    loc.AddCatalogLookupPathPrefix(localedir)

   150

    # Define locale domain

   151

    loc.AddCatalog(domain)

   152

   153

    import locale

   154

    global default_locale

   155

    default_locale = locale.getdefaultlocale()[1]

   156

   157

    # sys.stdout.encoding = default_locale

   158

    # if Beremiz_service is started from Beremiz IDE

   159

    # sys.stdout.encoding is None (that means 'ascii' encoding').

   160

    # And unicode string returned by wx.GetTranslation() are

   161

    # automatically converted to 'ascii' string.

   162

    def unicode_translation(message):

   163

        return wx.GetTranslation(message).encode(default_locale)

   164

   165

    if __name__ == '__main__':

   166

        __builtin__.__dict__['_'] = unicode_translation

   167

        # __builtin__.__dict__['_'] = wx.GetTranslation

   168

   169

   170

if enablewx:

   171

    try:

   172

        import wx

   173

        havewx = True

   174

    except ImportError:

   175

        print "Wx unavailable !"

   176

        havewx = False

   177

   178

    if havewx:

   179

        import re

   180

        from threading import Thread, currentThread

   181

        from types import *

   182

   183

        if wx.VERSION >= (3, 0, 0):

   184

            app = wx.App(redirect=False)

   185

        else:

   186

            app = wx.PySimpleApp(redirect=False)

   187

        app.SetTopWindow(wx.Frame(None, -1))

   188

   189

        default_locale = None

   190

        SetupI18n()

   191

   192

        defaulticon = wx.Image(Bpath("images", "brz.png"))

   193

        starticon = wx.Image(Bpath("images", "icoplay24.png"))

   194

        stopicon = wx.Image(Bpath("images", "icostop24.png"))

   195

   196

        class ParamsEntryDialog(wx.TextEntryDialog):

   197

            if wx.VERSION < (2, 6, 0):

   198

                def Bind(self, event, function, id=None):

   199

                    if id is not None:

   200

                        event(self, id, function)

   201

                    else:

   202

                        event(self, function)

   203

   204

            def __init__(self, parent, message, caption=_("Please enter text"), defaultValue="",

   205

                         style=wx.OK | wx.CANCEL | wx.CENTRE, pos=wx.DefaultPosition):

   206

                wx.TextEntryDialog.__init__(self, parent, message, caption, defaultValue, style, pos)

   207

   208

                self.Tests = []

   209

                if wx.VERSION >= (2, 8, 0):

   210

                    self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.GetAffirmativeId())

   211

                elif wx.VERSION >= (2, 6, 0):

   212

                    self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.GetSizer().GetItem(3).GetSizer().GetAffirmativeButton().GetId())

   213

                else:

   214

                    self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.GetSizer().GetItem(3).GetSizer().GetChildren()[0].GetSizer().GetChildren()[0].GetWindow().GetId())

   215

   216

            def OnOK(self, event):

   217

                value = self.GetValue()

   218

                texts = {"value": value}

   219

                for function, message in self.Tests:

   220

                    if not function(value):

   221

                        message = wx.MessageDialog(self, message % texts, _("Error"), wx.OK | wx.ICON_ERROR)

   222

                        message.ShowModal()

   223

                        message.Destroy()

   224

                        return

   225

                self.EndModal(wx.ID_OK)

   226

                event.Skip()

   227

   228

            def GetValue(self):

   229

                return self.GetSizer().GetItem(1).GetWindow().GetValue()

   230

   231

            def SetTests(self, tests):

   232

                self.Tests = tests

   233

   234

        class BeremizTaskBarIcon(wx.TaskBarIcon):

   235

            TBMENU_START = wx.NewId()

   236

            TBMENU_STOP = wx.NewId()

   237

            TBMENU_CHANGE_NAME = wx.NewId()

   238

            TBMENU_CHANGE_PORT = wx.NewId()

   239

            TBMENU_CHANGE_INTERFACE = wx.NewId()

   240

            TBMENU_LIVE_SHELL = wx.NewId()

   241

            TBMENU_WXINSPECTOR = wx.NewId()

   242

            TBMENU_CHANGE_WD = wx.NewId()

   243

            TBMENU_QUIT = wx.NewId()

   244

   245

            def __init__(self, pyroserver, level):

   246

                wx.TaskBarIcon.__init__(self)

   247

                self.pyroserver = pyroserver

   248

                # Set the image

   249

                self.UpdateIcon(None)

   250

                self.level = level

   251

   252

                # bind some events

   253

                self.Bind(wx.EVT_MENU, self.OnTaskBarStartPLC, id=self.TBMENU_START)

   254

                self.Bind(wx.EVT_MENU, self.OnTaskBarStopPLC, id=self.TBMENU_STOP)

   255

                self.Bind(wx.EVT_MENU, self.OnTaskBarChangeName, id=self.TBMENU_CHANGE_NAME)

   256

                self.Bind(wx.EVT_MENU, self.OnTaskBarChangeInterface, id=self.TBMENU_CHANGE_INTERFACE)

   257

                self.Bind(wx.EVT_MENU, self.OnTaskBarLiveShell, id=self.TBMENU_LIVE_SHELL)

   258

                self.Bind(wx.EVT_MENU, self.OnTaskBarWXInspector, id=self.TBMENU_WXINSPECTOR)

   259

                self.Bind(wx.EVT_MENU, self.OnTaskBarChangePort, id=self.TBMENU_CHANGE_PORT)

   260

                self.Bind(wx.EVT_MENU, self.OnTaskBarChangeWorkingDir, id=self.TBMENU_CHANGE_WD)

   261

                self.Bind(wx.EVT_MENU, self.OnTaskBarQuit, id=self.TBMENU_QUIT)

   262

   263

            def CreatePopupMenu(self):

   264

                """

   265

                This method is called by the base class when it needs to popup

   266

                the menu for the default EVT_RIGHT_DOWN event.  Just create

   267

                the menu how you want it and return it from this function,

   268

                the base class takes care of the rest.

   269

                """

   270

                menu = wx.Menu()

   271

                menu.Append(self.TBMENU_START, _("Start PLC"))

   272

                menu.Append(self.TBMENU_STOP, _("Stop PLC"))

   273

                if self.level == 1:

   274

                    menu.AppendSeparator()

   275

                    menu.Append(self.TBMENU_CHANGE_NAME, _("Change Name"))

   276

                    menu.Append(self.TBMENU_CHANGE_INTERFACE, _("Change IP of interface to bind"))

   277

                    menu.Append(self.TBMENU_CHANGE_PORT, _("Change Port Number"))

   278

                    menu.Append(self.TBMENU_CHANGE_WD, _("Change working directory"))

   279

                    menu.AppendSeparator()

   280

                    menu.Append(self.TBMENU_LIVE_SHELL, _("Launch a live Python shell"))

   281

                    menu.Append(self.TBMENU_WXINSPECTOR, _("Launch WX GUI inspector"))

   282

                menu.AppendSeparator()

   283

                menu.Append(self.TBMENU_QUIT, _("Quit"))

   284

                return menu

   285

   286

            def MakeIcon(self, img):

   287

                """

   288

                The various platforms have different requirements for the

   289

                icon size...

   290

                """

   291

                if "wxMSW" in wx.PlatformInfo:

   292

                    img = img.Scale(16, 16)

   293

                elif "wxGTK" in wx.PlatformInfo:

   294

                    img = img.Scale(22, 22)

   295

                # wxMac can be any size upto 128x128, so leave the source img alone....

   296

                icon = wx.IconFromBitmap(img.ConvertToBitmap())

   297

                return icon

   298

   299

            def OnTaskBarStartPLC(self, evt):

   300

                if self.pyroserver.plcobj is not None:

   301

                    plcstatus = self.pyroserver.plcobj.GetPLCstatus()[0]

   302

                    if plcstatus is "Stopped":

   303

                        self.pyroserver.plcobj.StartPLC()

   304

                    else:

   305

                        print _("PLC is empty or already started.")

   306

   307

            def OnTaskBarStopPLC(self, evt):

   308

                if self.pyroserver.plcobj is not None:

   309

                    if self.pyroserver.plcobj.GetPLCstatus()[0] == "Started":

   310

                        Thread(target=self.pyroserver.plcobj.StopPLC).start()

   311

                    else:

   312

                        print _("PLC is not started.")

   313

   314

            def OnTaskBarChangeInterface(self, evt):

   315

                ip_addr = self.pyroserver.ip_addr

   316

                ip_addr = '' if ip_addr is None else ip_addr

   317

                dlg = ParamsEntryDialog(None, _("Enter the IP of the interface to bind"), defaultValue=ip_addr)

   318

                dlg.SetTests([(re.compile('\d{1,3}(?:\.\d{1,3}){3}$').match, _("IP is not valid!")),

   319

                              (lambda x:len([x for x in x.split(".") if 0 <= int(x) <= 255]) == 4,

   320

                               _("IP is not valid!"))])

   321

                if dlg.ShowModal() == wx.ID_OK:

   322

                    self.pyroserver.ip_addr = dlg.GetValue()

   323

                    self.pyroserver.Stop()

   324

   325

            def OnTaskBarChangePort(self, evt):

   326

                dlg = ParamsEntryDialog(None, _("Enter a port number "), defaultValue=str(self.pyroserver.port))

   327

                dlg.SetTests([(UnicodeType.isdigit, _("Port number must be an integer!")), (lambda port: 0 <= int(port) <= 65535, _("Port number must be 0 <= port <= 65535!"))])

   328

                if dlg.ShowModal() == wx.ID_OK:

   329

                    self.pyroserver.port = int(dlg.GetValue())

   330

                    self.pyroserver.Stop()

   331

   332

            def OnTaskBarChangeWorkingDir(self, evt):

   333

                dlg = wx.DirDialog(None, _("Choose a working directory "), self.pyroserver.workdir, wx.DD_NEW_DIR_BUTTON)

   334

                if dlg.ShowModal() == wx.ID_OK:

   335

                    self.pyroserver.workdir = dlg.GetPath()

   336

                    self.pyroserver.Stop()

   337

   338

            def OnTaskBarChangeName(self, evt):

   339

                servicename = self.pyroserver.servicename

   340

                servicename = '' if servicename is None else servicename

   341

                dlg = ParamsEntryDialog(None, _("Enter a name "), defaultValue=servicename)

   342

                dlg.SetTests([(lambda name: len(name) is not 0, _("Name must not be null!"))])

   343

                if dlg.ShowModal() == wx.ID_OK:

   344

                    self.pyroserver.servicename = dlg.GetValue()

   345

                    self.pyroserver.Restart()

   346

   347

            def _LiveShellLocals(self):

   348

                if self.pyroserver.plcobj is not None:

   349

                    return {"locals": self.pyroserver.plcobj.python_runtime_vars}

   350

                else:

   351

                    return {}

   352

   353

            def OnTaskBarLiveShell(self, evt):

   354

                from wx import py

   355

                frame = py.crust.CrustFrame(**self._LiveShellLocals())

   356

                frame.Show()

   357

   358

            def OnTaskBarWXInspector(self, evt):

   359

                # Activate the widget inspection tool

   360

                from wx.lib.inspection import InspectionTool

   361

                if not InspectionTool().initialized:

   362

                    InspectionTool().Init(**self._LiveShellLocals())

   363

   364

                wnd = wx.GetApp()

   365

                InspectionTool().Show(wnd, True)

   366

   367

            def OnTaskBarQuit(self, evt):

   368

                if wx.Platform == '__WXMSW__':

   369

                    Thread(target=self.pyroserver.Quit).start()

   370

                self.RemoveIcon()

   371

                wx.CallAfter(wx.GetApp().ExitMainLoop)

   372

   373

            def UpdateIcon(self, plcstatus):

   374

                if plcstatus is "Started":

   375

                    currenticon = self.MakeIcon(starticon)

   376

                elif plcstatus is "Stopped":

   377

                    currenticon = self.MakeIcon(stopicon)

   378

                else:

   379

                    currenticon = self.MakeIcon(defaulticon)

   380

                self.SetIcon(currenticon, "Beremiz Service")

   381

   382

   383

if not os.path.isdir(WorkingDir):

   384

    os.mkdir(WorkingDir)

   385

   386

   387

def default_evaluator(tocall, *args, **kwargs):

   388

    try:

   389

        res = (tocall(*args, **kwargs), None)

   390

    except Exception:

   391

        res = (None, sys.exc_info())

   392

    return res

   393

   394

   395

class Server():

   396

    def __init__(self, servicename, ip_addr, port,

   397

                 workdir, argv, autostart=False,

   398

                 statuschange=None, evaluator=default_evaluator,

   399

                 pyruntimevars=None):

   400

        self.continueloop = True

   401

        self.daemon = None

   402

        self.servicename = servicename

   403

        self.ip_addr = ip_addr

   404

        self.port = port

   405

        self.workdir = workdir

   406

        self.argv = argv

   407

        self.plcobj = None

   408

        self.servicepublisher = None

   409

        self.autostart = autostart

   410

        self.statuschange = statuschange

   411

        self.evaluator = evaluator

   412

        self.pyruntimevars = pyruntimevars

   413

   414

    def Loop(self):

   415

        while self.continueloop:

   416

            self.Start()

   417

   418

    def Restart(self):

   419

        self.Stop()

   420

   421

    def Quit(self):

   422

        self.continueloop = False

   423

        if self.plcobj is not None:

   424

            self.plcobj.StopPLC()

   425

            self.plcobj.UnLoadPLC()

   426

        self.Stop()

   427

   428

    def Start(self):

   429

        pyro.initServer()

   430

        self.daemon = pyro.Daemon(host=self.ip_addr, port=self.port)

   431

        self.plcobj = PLCObject(self.workdir, self.daemon, self.argv,

   432

                                self.statuschange, self.evaluator,

   433

                                self.pyruntimevars)

   434

        uri = self.daemon.connect(self.plcobj, "PLCObject")

   435

   436

        print _("Pyro port :"), self.port

   437

        print _("Pyro object's uri :"), uri

   438

   439

        # Beremiz IDE detects daemon start by looking

   440

        # for self.workdir in the daemon's stdout.

   441

        # Therefore don't delete the following line

   442

        print _("Current working directory :"), self.workdir

   443

   444

        # Configure and publish service

   445

        # Not publish service if localhost in address params

   446

        if self.servicename is not None and \

   447

           self.ip_addr is not None and \

   448

           self.ip_addr != "localhost" and \

   449

           self.ip_addr != "127.0.0.1":

   450

            print _("Publishing service on local network")

   451

            self.servicepublisher = ServicePublisher.ServicePublisher()

   452

            self.servicepublisher.RegisterService(self.servicename, self.ip_addr, self.port)

   453

   454

        self.plcobj.AutoLoad()

   455

        if self.plcobj.GetPLCstatus()[0] != "Empty":

   456

            if self.autostart:

   457

                self.plcobj.StartPLC()

   458

        self.plcobj.StatusChange()

   459

   460

        sys.stdout.flush()

   461

   462

        self.daemon.requestLoop()

   463

        self.daemon.sock.close()

   464

   465

    def Stop(self):

   466

        if self.plcobj is not None:

   467

            self.plcobj.StopPLC()

   468

        if self.servicepublisher is not None:

   469

            self.servicepublisher.UnRegisterService()

   470

            self.servicepublisher = None

   471

        self.daemon.shutdown(True)

   472

   473

   474

if enabletwisted:

   475

    import warnings

   476

    with warnings.catch_warnings():

   477

        warnings.simplefilter("ignore")

   478

        try:

   479

            from threading import Thread, currentThread

   480

            if havewx:

   481

                from twisted.internet import wxreactor

   482

                wxreactor.install()

   483