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

#

     9

#See COPYING file for copyrights details.

    10

#

    11

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

    12

#modify it under the terms of the GNU General Public

    13

#License as published by the Free Software Foundation; either

    14

#version 2.1 of the License, or (at your option) any later version.

    15

#

    16

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

    17

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

    18

#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    19

#General Public License for more details.

    20

#

    21

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

    22

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

    23

#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    24

    25

import os, sys, getopt

    26

    27

def usage():

    28

    print """

    29

Usage of Beremiz PLC execution service :\n

    30

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

    31

           -n        - zeroconf service name (default:disabled)

    32

           -i        - ip of interface to bind to (default:localhost)

    33

           -p        - port number default:3000

    34

           -h        - print this help text and quit

    35

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

    36

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

    37

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

    38

    39

           working_dir - directory where are stored PLC files

    40

"""%sys.argv[0]

    41

    42

try:

    43

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

    44

except getopt.GetoptError, err:

    45

    # print help information and exit:

    46

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

    47

    usage()

    48

    sys.exit(2)

    49

    50

# default values

    51

ip = ""

    52

port = 3000

    53

servicename = None

    54

autostart = False

    55

enablewx = True

    56

havewx = False

    57

enabletwisted = True

    58

havetwisted = False

    59

    60

for o, a in opts:

    61

    if o == "-h":

    62

        usage()

    63

        sys.exit()

    64

    elif o == "-i":

    65

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

    66

            ip = a

    67

    elif o == "-p":

    68

        # port: port that the service runs on

    69

        port = int(a)

    70

    elif o == "-n":

    71

        servicename = a

    72

    elif o == "-x":

    73

        enablewx = int(a)

    74

    elif o == "-t":

    75

        enabletwisted = int(a)

    76

    elif o == "-a":

    77

        autostart = int(a)

    78

    else:

    79

        usage()

    80

        sys.exit()

    81

    82

if len(argv) > 1:

    83

    usage()

    84

    sys.exit()

    85

elif len(argv) == 1:

    86

    WorkingDir = argv[0]

    87

    os.chdir(WorkingDir)

    88

elif len(argv) == 0:

    89

    WorkingDir = os.getcwd()

    90

    argv=[WorkingDir]

    91

    92

import __builtin__

    93

if __name__ == '__main__':

    94

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

    95

    96

if enablewx:

    97

    try:

    98

        import wx, re

    99

        from threading import Thread, currentThread

   100

        from types import *

   101

        havewx = True

   102

    except:

   103

        print "Wx unavailable !"

   104

        havewx = False

   105

   106

    if havewx:

   107

        app=wx.App(redirect=False)

   108

   109

        # Import module for internationalization

   110

        import gettext

   111

   112

        CWD = os.path.split(os.path.realpath(__file__))[0]

   113

   114

        # Get folder containing translation files

   115

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

   116

        # Get the default language

   117

        langid = wx.LANGUAGE_DEFAULT

   118

        # Define translation domain (name of translation files)

   119

        domain = "Beremiz"

   120

   121

        # Define locale for wx

   122

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

   123

        if loc is None:

   124

            loc = wx.Locale(langid)

   125

            __builtin__.__dict__['loc'] = loc

   126

        # Define location for searching translation files

   127

        loc.AddCatalogLookupPathPrefix(localedir)

   128

        # Define locale domain

   129

        loc.AddCatalog(domain)

   130

   131

        def unicode_translation(message):

   132

            return wx.GetTranslation(message).encode("utf-8")

   133

   134

        if __name__ == '__main__':

   135

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

   136

   137

        try:

   138

            from wx.lib.embeddedimage import PyEmbeddedImage

   139

        except:

   140

            import cStringIO

   141

            import base64

   142

   143

            class PyEmbeddedImage:

   144

                def __init__(self, image_string):

   145

                    stream = cStringIO.StringIO(base64.b64decode(image_string))

   146

                    self.Image = wx.ImageFromStream(stream)

   147

                def GetImage(self):

   148

                    return self.Image

   149

   150

        defaulticon = PyEmbeddedImage(

   151

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   180

   181

        #----------------------------------------------------------------------

   182

        starticon = PyEmbeddedImage(

   183

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABbpJ"

   184

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   212

   213

        #----------------------------------------------------------------------

   214

        stopicon = PyEmbeddedImage(

   215

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        "aHyBTKdjum0POGzbFAp7qo0xVOtJZdf/C/wRDnL5FYGSAAAAAElFTkSuQmCC")

   240

   241

        class ParamsEntryDialog(wx.TextEntryDialog):

   242

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

   243

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

   244

                    if id is not None:

   245

                        event(self, id, function)

   246

                    else:

   247

                        event(self, function)

   248

   249

   250

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

   251

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

   252

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

   253

   254

                self.Tests = []

   255

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

   256

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

   257

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

   258

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

   259

                else:

   260

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

   261

   262

            def OnOK(self, event):

   263

                value = self.GetValue()

   264

                texts = {"value" : value}

   265

                for function, message in self.Tests:

   266

                    if not function(value):

   267

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

   268

                        message.ShowModal()

   269

                        message.Destroy()

   270

                        return

   271

                self.EndModal(wx.ID_OK)

   272

                event.Skip()

   273

   274

            def GetValue(self):

   275

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

   276

   277

            def SetTests(self, tests):

   278

                self.Tests = tests

   279

   280

        class BeremizTaskBarIcon(wx.TaskBarIcon):

   281

            TBMENU_START = wx.NewId()

   282

            TBMENU_STOP = wx.NewId()

   283

            TBMENU_CHANGE_NAME = wx.NewId()

   284

            TBMENU_CHANGE_PORT = wx.NewId()

   285

            TBMENU_CHANGE_INTERFACE = wx.NewId()

   286

            TBMENU_LIVE_SHELL = wx.NewId()

   287

            TBMENU_WXINSPECTOR = wx.NewId()

   288

            TBMENU_CHANGE_WD = wx.NewId()

   289

            TBMENU_QUIT = wx.NewId()

   290

   291

            def __init__(self, pyroserver):

   292

                wx.TaskBarIcon.__init__(self)

   293

                self.pyroserver = pyroserver

   294

                # Set the image

   295

                self.UpdateIcon(None)

   296

   297

                # bind some events

   298

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

   299

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

   300

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

   301

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

   302

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

   303

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

   304

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

   305

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

   306

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

   307

   308

            def CreatePopupMenu(self):

   309

                """

   310

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

   311

                the menu for the default EVT_RIGHT_DOWN event.  Just create

   312

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

   313

                the base class takes care of the rest.

   314

                """

   315

                menu = wx.Menu()

   316

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

   317

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

   318

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

   319

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

   320

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

   321

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

   322

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

   323

                menu.AppendSeparator()

   324

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

   325

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

   326

                return menu

   327

   328

            def MakeIcon(self, img):

   329

                """

   330

                The various platforms have different requirements for the

   331

                icon size...

   332

                """

   333

                if "wxMSW" in wx.PlatformInfo:

   334

                    img = img.Scale(16, 16)

   335

                elif "wxGTK" in wx.PlatformInfo:

   336

                    img = img.Scale(22, 22)

   337

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

   338

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

   339

                return icon

   340

   341

            def OnTaskBarStartPLC(self, evt):

   342

                if self.pyroserver.plcobj is not None: 

   343

                    self.pyroserver.plcobj.StartPLC()

   344

                evt.Skip()

   345

   346

            def OnTaskBarStopPLC(self, evt):

   347

                if self.pyroserver.plcobj is not None:

   348

                    self.pyroserver.plcobj.StopPLC()

   349

                evt.Skip()

   350

   351

            def OnTaskBarChangeInterface(self, evt):

   352

                dlg = ParamsEntryDialog(None, _("Enter the IP of the interface to bind"), defaultValue=self.pyroserver.ip)

   353

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

   354

                               ( lambda ip :len([x for x in ip.split(".") if 0 <= int(x) <= 255]) == 4, _("IP is not valid!"))

   355

                               ])

   356

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

   357

                    self.pyroserver.ip = dlg.GetValue()

   358

                    self.pyroserver.Stop()

   359

                evt.Skip()

   360

   361

            def OnTaskBarChangePort(self, evt):

   362

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

   363

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

   364

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

   365

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

   366

                    self.pyroserver.Stop()

   367

                evt.Skip()

   368

   369

            def OnTaskBarChangeWorkingDir(self, evt):

   370

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

   371

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

   372

                    self.pyroserver.workdir = dlg.GetPath()

   373

                    self.pyroserver.Stop()

   374

                evt.Skip()

   375

   376

            def OnTaskBarChangeName(self, evt):

   377

                dlg = ParamsEntryDialog(None, _("Enter a name "), defaultValue=self.pyroserver.name)

   378

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

   379

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

   380

                    self.pyroserver.name = dlg.GetValue()

   381

                    self.pyroserver.Restart()

   382

                evt.Skip()

   383

   384

            def OnTaskBarLiveShell(self, evt):

   385

                if self.pyroserver.plcobj is not None and self.pyroserver.plcobj.python_threads_vars is not None:

   386

                    from wx import py

   387

                    #frame = py.shell.ShellFrame(locals=self.pyroserver.plcobj.python_threads_vars)

   388

                    frame = py.crust.CrustFrame(locals=self.pyroserver.plcobj.python_threads_vars)

   389

                    frame.Show()

   390

                else:

   391

                    wx.MessageBox(_("No running PLC"), _("Error"))

   392

                evt.Skip()

   393

   394

            def OnTaskBarWXInspector(self, evt):

   395

                # Activate the widget inspection tool

   396

                from wx.lib.inspection import InspectionTool

   397

                if not InspectionTool().initialized:

   398

                    InspectionTool().Init(locals=self.pyroserver.plcobj.python_threads_vars)

   399

   400

                # Find a widget to be selected in the tree.  Use either the

   401

                # one under the cursor, if any, or this frame.

   402

                wnd = wx.FindWindowAtPointer()

   403

                if not wnd:

   404

                    wnd = wx.GetApp()

   405

                InspectionTool().Show(wnd, True)

   406

                evt.Skip()

   407

   408

            def OnTaskBarQuit(self, evt):

   409

                self.pyroserver.Quit()

   410

                self.RemoveIcon()

   411

                wx.CallAfter(wx.GetApp().Exit)

   412

                evt.Skip()

   413

   414

            def UpdateIcon(self, plcstatus):

   415

                if plcstatus is "Started" :

   416

                    currenticon = self.MakeIcon(starticon.GetImage())

   417

                elif plcstatus is "Stopped":

   418

                    currenticon = self.MakeIcon(stopicon.GetImage())

   419

                else:

   420

                    currenticon = self.MakeIcon(defaulticon.GetImage())

   421

                self.SetIcon(currenticon, "Beremiz Service")

   422

   423

from runtime import PLCObject, PLCprint, ServicePublisher

   424

import Pyro.core as pyro

   425

   426

if not os.path.isdir(WorkingDir):

   427

    os.mkdir(WorkingDir)

   428

   429

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

   430

    return callable(*args,**kwargs)

   431

   432

class Server():

   433

    def __init__(self, servicename, ip, port, workdir, argv, autostart=False, statuschange=None, evaluator=default_evaluator, website=None):

   434

        self.continueloop = True

   435

        self.daemon = None

   436

        self.servicename = servicename

   437

        self.ip = ip

   438

        self.port = port

   439

        self.workdir = workdir

   440

        self.argv = argv

   441

        self.plcobj = None

   442

        self.servicepublisher = None

   443

        self.autostart = autostart

   444

        self.statuschange = statuschange

   445

        self.evaluator = evaluator

   446

        self.website = website

   447

   448

    def Loop(self):

   449

        while self.continueloop:

   450

            self.Start()

   451

   452

    def Restart(self):

   453

        self.Stop()

   454

   455

    def Quit(self):

   456

        self.continueloop = False

   457

        self.Stop()

   458

   459

    def Start(self):

   460

        pyro.initServer()

   461

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

   462

        self.plcobj = PLCObject(self.workdir, self.daemon, self.argv, self.statuschange, self.evaluator, self.website)

   463

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

   464

   465

        print "Pyro port :",self.port

   466

        print "Pyro object's uri :",uri

   467

        print "Current working directory :",self.workdir

   468

   469

        # Configure and publish service

   470

        # Not publish service if localhost in address params

   471

        if self.servicename is not None and self.ip != "localhost" and self.ip != "127.0.0.1":    

   472

            print "Publishing service on local network"

   473

            self.servicepublisher = ServicePublisher.ServicePublisher()

   474

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

   475

   476

        if self.autostart:

   477

            self.plcobj.StartPLC()

   478

   479

        sys.stdout.flush()

   480

   481

        self.daemon.requestLoop()

   482

   483

    def Stop(self):

   484

        self.plcobj.StopPLC()

   485

        if self.servicepublisher is not None:

   486

            self.servicepublisher.UnRegisterService()

   487

            self.servicepublisher = None

   488

        self.daemon.shutdown(True)

   489

   490

if enabletwisted:

   491

    import warnings

   492

    with warnings.catch_warnings():

   493

        warnings.simplefilter("ignore")

   494

        try:

   495

            from threading import Thread, currentThread

   496

            if havewx: