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

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#modify it under the terms of the GNU General Public

    13

#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.

    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

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

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#General Public License for more details.

    20

#

    21

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

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#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

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    27

def usage():

    28

    print """

    29

Usage of Beremiz PLC execution service :\n

    30

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

    31

           -n        - zeroconf service name

    32

           -i        - ip of interface to bind to (x.x.x.x)

    33

           -p        - port number

    34

           -h        - print this help text and quit

    35

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

    36

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

    37

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

    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

name = os.environ[{

    54

     "linux2":"USER",

    55

     "win32":"USERNAME",

    56

     }.get(sys.platform, "USER")]

    57

autostart = False

    58

enablewx = True

    59

havewx = False

    60

enabletwisted = True

    61

havetwisted = False

    62

    63

for o, a in opts:

    64

    if o == "-h":

    65

        usage()

    66

        sys.exit()

    67

    elif o == "-i":

    68

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

    69

            ip = a

    70

    elif o == "-p":

    71

        # port: port that the service runs on

    72

        port = int(a)

    73

    elif o == "-n":

    74

        name = a

    75

    elif o == "-x":

    76

        enablewx = int(a)

    77

    elif o == "-t":

    78

        enabletwisted = int(a)

    79

    elif o == "-a":

    80

        autostart = int(a)

    81

    else:

    82

        usage()

    83

        sys.exit()

    84

    85

if len(argv) > 1:

    86

    usage()

    87

    sys.exit()

    88

elif len(argv) == 1:

    89

    WorkingDir = argv[0]

    90

elif len(argv) == 0:

    91

    WorkingDir = os.getcwd()

    92

    argv=[WorkingDir]

    93

    94

import __builtin__

    95

if __name__ == '__main__':

    96

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

    97

    98

if enablewx:

    99

    try:

   100

        import wx, re

   101

        from threading import Thread, currentThread

   102

        from types import *

   103

        havewx = True

   104

    except:

   105

        havewx = False

   106

   107

    if havewx:

   108

        app=wx.App(redirect=False)

   109

   110

        # Import module for internationalization

   111

        import gettext

   112

   113

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

   114

   115

        # Get folder containing translation files

   116

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

   117

        # Get the default language

   118

        langid = wx.LANGUAGE_DEFAULT

   119

        # Define translation domain (name of translation files)

   120

        domain = "Beremiz"

   121

   122

        # Define locale for wx

   123

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

   124

        if loc is None:

   125

            loc = wx.Locale(langid)

   126

            __builtin__.__dict__['loc'] = loc

   127

        # Define location for searching translation files

   128

        loc.AddCatalogLookupPathPrefix(localedir)

   129

        # Define locale domain

   130

        loc.AddCatalog(domain)

   131

   132

        def unicode_translation(message):

   133

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

   134

   135

        if __name__ == '__main__':

   136

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

   137

   138

        try:

   139

            from wx.lib.embeddedimage import PyEmbeddedImage

   140

        except:

   141

            import cStringIO

   142

            import base64

   143

   144

            class PyEmbeddedImage:

   145

                def __init__(self, image_string):

   146

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

   147

                    self.Image = wx.ImageFromStream(stream)

   148

                def GetImage(self):

   149

                    return self.Image

   150

   151

        defaulticon = PyEmbeddedImage(

   152

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABc5J"

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   181

   182

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

   183

        starticon = PyEmbeddedImage(

   184

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABbpJ"

   185

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   213

   214

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

   215

        stopicon = PyEmbeddedImage(

   216

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        "aHyBTKdjum0POGzbFAp7qo0xVOtJZdf/C/wRDnL5FYGSAAAAAElFTkSuQmCC")

   241

   242

        class ParamsEntryDialog(wx.TextEntryDialog):

   243

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

   244

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

   245

                    if id is not None:

   246

                        event(self, id, function)

   247

                    else:

   248

                        event(self, function)

   249

   250

   251

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

   252

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

   253

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

   254

   255

                self.Tests = []

   256

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

   257

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

   258

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

   259

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

   260

                else:

   261

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

   262

   263

            def OnOK(self, event):

   264

                value = self.GetValue()

   265

                texts = {"value" : value}

   266

                for function, message in self.Tests:

   267

                    if not function(value):

   268

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

   269

                        message.ShowModal()

   270

                        message.Destroy()

   271

                        return

   272

                self.EndModal(wx.ID_OK)

   273

                event.Skip()

   274

   275

            def GetValue(self):

   276

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

   277

   278

            def SetTests(self, tests):

   279

                self.Tests = tests

   280

   281

        class BeremizTaskBarIcon(wx.TaskBarIcon):

   282

            TBMENU_START = wx.NewId()

   283

            TBMENU_STOP = wx.NewId()

   284

            TBMENU_CHANGE_NAME = wx.NewId()

   285

            TBMENU_CHANGE_PORT = wx.NewId()

   286

            TBMENU_CHANGE_INTERFACE = wx.NewId()

   287

            TBMENU_LIVE_SHELL = wx.NewId()

   288

            TBMENU_WXINSPECTOR = wx.NewId()

   289

            TBMENU_CHANGE_WD = wx.NewId()

   290

            TBMENU_QUIT = wx.NewId()

   291

   292

            def __init__(self, pyroserver):

   293

                wx.TaskBarIcon.__init__(self)

   294

                self.pyroserver = pyroserver

   295

                # Set the image

   296

                self.UpdateIcon(None)

   297

   298

                # bind some events

   299

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

   300

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

   301

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

   302

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

   303

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

   304

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

   305

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

   306

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

   307

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

   308

   309

            def CreatePopupMenu(self):

   310

                """

   311

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

   312

                the menu for the default EVT_RIGHT_DOWN event.  Just create

   313

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

   314

                the base class takes care of the rest.

   315

                """

   316

                menu = wx.Menu()

   317

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

   318

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

   319

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

   320

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

   321

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

   322

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

   323

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

   324

                menu.AppendSeparator()

   325

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

   326

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

   327

                return menu

   328

   329

            def MakeIcon(self, img):

   330

                """

   331

                The various platforms have different requirements for the

   332

                icon size...

   333

                """

   334

                if "wxMSW" in wx.PlatformInfo:

   335

                    img = img.Scale(16, 16)

   336

                elif "wxGTK" in wx.PlatformInfo:

   337

                    img = img.Scale(22, 22)

   338

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

   339

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

   340

                return icon

   341

   342

            def OnTaskBarStartPLC(self, evt):

   343

                if self.pyroserver.plcobj is not None: 

   344

                    self.pyroserver.plcobj.StartPLC()

   345

                evt.Skip()

   346

   347

            def OnTaskBarStopPLC(self, evt):

   348

                if self.pyroserver.plcobj is not None:

   349

                    self.pyroserver.plcobj.StopPLC()

   350

                evt.Skip()

   351

   352

            def OnTaskBarChangeInterface(self, evt):

   353

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

   354

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

   355

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

   356

                               ])

   357

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

   358

                    self.pyroserver.ip = dlg.GetValue()

   359

                    self.pyroserver.Stop()

   360

                evt.Skip()

   361

   362

            def OnTaskBarChangePort(self, evt):

   363

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

   364

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

   365

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

   366

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

   367

                    self.pyroserver.Stop()

   368

                evt.Skip()

   369

   370

            def OnTaskBarChangeWorkingDir(self, evt):

   371

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

   372

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

   373

                    self.pyroserver.workdir = dlg.GetPath()

   374

                    self.pyroserver.Stop()

   375

                evt.Skip()

   376

   377

            def OnTaskBarChangeName(self, evt):

   378

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

   379

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

   380

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

   381

                    self.pyroserver.name = dlg.GetValue()

   382

                    self.pyroserver.Restart()

   383

                evt.Skip()

   384

   385

            def OnTaskBarLiveShell(self, evt):

   386

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

   387

                    from wx import py

   388

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

   389

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

   390

                    frame.Show()

   391

                else:

   392

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

   393

                evt.Skip()

   394

   395

            def OnTaskBarWXInspector(self, evt):

   396

                # Activate the widget inspection tool

   397

                from wx.lib.inspection import InspectionTool

   398

                if not InspectionTool().initialized:

   399

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

   400

   401

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

   402

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

   403

                wnd = wx.FindWindowAtPointer()

   404

                if not wnd:

   405

                    wnd = wx.GetApp()

   406

                InspectionTool().Show(wnd, True)

   407

                evt.Skip()

   408

   409

            def OnTaskBarQuit(self, evt):

   410

                self.pyroserver.Quit()

   411

                self.RemoveIcon()

   412

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

   413

                evt.Skip()

   414

   415

            def UpdateIcon(self, plcstatus):

   416

                if plcstatus is "Started" :

   417

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

   419

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

   420

                else:

   421

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

   422

                self.SetIcon(currenticon, "Beremiz Service")

   423

   424

from runtime import PLCObject, PLCprint, ServicePublisher

   425

import Pyro.core as pyro

   426

   427

if not os.path.isdir(WorkingDir):

   428

    os.mkdir(WorkingDir)

   429

   430

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

   431

    return callable(*args,**kwargs)

   432

   433

class Server():

   434

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

   435

        self.continueloop = True

   436

        self.daemon = None

   437

        self.name = name

   438

        self.ip = ip

   439

        self.port = port

   440

        self.workdir = workdir

   441

        self.argv = argv

   442

        self.plcobj = None

   443

        self.servicepublisher = None

   444

        self.autostart = autostart

   445

        self.statuschange = statuschange

   446

        self.evaluator = evaluator

   447

        self.website = website

   448

   449

    def Loop(self):

   450

        while self.continueloop:

   451

            self.Start()

   452

   453

    def Restart(self):

   454

        self.Stop()

   455

   456

    def Quit(self):

   457

        self.continueloop = False

   458

        self.Stop()

   459

   460

    def Start(self):

   461

        pyro.initServer()

   462

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

   463

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

   464

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

   465

   466

        print "The daemon runs on port :",self.port

   467

        print "The object's uri is :",uri

   468

        print "The working directory :",self.workdir

   469

   470

        # Configure and publish service

   471

        # Not publish service if localhost in address params

   472

        if self.ip != "localhost" and self.ip != "127.0.0.1":    

   473

            print "Publish service on local network"

   474

            self.servicepublisher = ServicePublisher.ServicePublisher()

   475

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

   476

   477

        if self.autostart:

   478

            self.plcobj.StartPLC()

   479

   480

        sys.stdout.flush()

   481

   482

        self.daemon.requestLoop()

   483

   484

    def Stop(self):

   485

        self.plcobj.StopPLC()

   486

        if self.servicepublisher is not None:

   487

            self.servicepublisher.UnRegisterService()

   488

            del self.servicepublisher

   489

        self.daemon.shutdown(True)

   490

   491

if enabletwisted: