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

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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

    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 address 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

given_ip = None

    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

            given_ip = a

    67

        else:

    68

            usage()

    69

            sys.exit()

    70

    elif o == "-p":

    71

        # port: port that the service runs on

    72

        port = int(a)

    73

    elif o == "-n":

    74

        servicename = 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

    os.chdir(WorkingDir)

    91

elif len(argv) == 0:

    92

    WorkingDir = os.getcwd()

    93

    argv=[WorkingDir]

    94

    95

import __builtin__

    96

if __name__ == '__main__':

    97

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

    98

    99

if enablewx:

   100

    try:

   101

        import wx, re

   102

        from threading import Thread, currentThread

   103

        from types import *

   104

        havewx = True

   105

    except:

   106

        print "Wx unavailable !"

   107

        havewx = False

   108

   109

    if havewx:

   110

        app=wx.App(redirect=False)

   111

   112

        # Import module for internationalization

   113

        import gettext

   114

   115

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

   116

   117

        # Get folder containing translation files

   118

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

   119

        # Get the default language

   120

        langid = wx.LANGUAGE_DEFAULT

   121

        # Define translation domain (name of translation files)

   122

        domain = "Beremiz"

   123

   124

        # Define locale for wx

   125

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

   126

        if loc is None:

   127

            loc = wx.Locale(langid)

   128

            __builtin__.__dict__['loc'] = loc

   129

        # Define location for searching translation files

   130

        loc.AddCatalogLookupPathPrefix(localedir)

   131

        # Define locale domain

   132

        loc.AddCatalog(domain)

   133

   134

        def unicode_translation(message):

   135

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

   136

   137

        if __name__ == '__main__':

   138

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

   139

   140

        try:

   141

            from wx.lib.embeddedimage import PyEmbeddedImage

   142

        except:

   143

            import cStringIO

   144

            import base64

   145

   146

            class PyEmbeddedImage:

   147

                def __init__(self, image_string):

   148

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

   149

                    self.Image = wx.ImageFromStream(stream)

   150

                def GetImage(self):

   151

                    return self.Image

   152

   153

        defaulticon = PyEmbeddedImage(

   154

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   183

   184

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

   185

        starticon = PyEmbeddedImage(

   186

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABbpJ"

   187

        "REFUSIl9lltsFNcdxn9nZnbHs15fd23j9TXYC0UCKzEhMQ+oIS2g1kQ1pbFStX0opFWsovSh"

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        "Dw/HnwT4P6CDl+TMvD0JAAAAAElFTkSuQmCC")

   215

   216

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

   217

        stopicon = PyEmbeddedImage(

   218

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        "aHyBTKdjum0POGzbFAp7qo0xVOtJZdf/C/wRDnL5FYGSAAAAAElFTkSuQmCC")

   243

   244

        class ParamsEntryDialog(wx.TextEntryDialog):

   245

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

   246

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

   247

                    if id is not None:

   248

                        event(self, id, function)

   249

                    else:

   250

                        event(self, function)

   251

   252

   253

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

   254

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

   255

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

   256

   257

                self.Tests = []

   258

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

   259

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

   260

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

   261

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

   262

                else:

   263

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

   264

   265

            def OnOK(self, event):

   266

                value = self.GetValue()

   267

                texts = {"value" : value}

   268

                for function, message in self.Tests:

   269

                    if not function(value):

   270

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

   271

                        message.ShowModal()

   272

                        message.Destroy()

   273

                        return

   274

                self.EndModal(wx.ID_OK)

   275

                event.Skip()

   276

   277

            def GetValue(self):

   278

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

   279

   280

            def SetTests(self, tests):

   281

                self.Tests = tests

   282

   283

        class BeremizTaskBarIcon(wx.TaskBarIcon):

   284

            TBMENU_START = wx.NewId()

   285

            TBMENU_STOP = wx.NewId()

   286

            TBMENU_CHANGE_NAME = wx.NewId()

   287

            TBMENU_CHANGE_PORT = wx.NewId()

   288

            TBMENU_CHANGE_INTERFACE = wx.NewId()

   289

            TBMENU_LIVE_SHELL = wx.NewId()

   290

            TBMENU_WXINSPECTOR = wx.NewId()

   291

            TBMENU_CHANGE_WD = wx.NewId()

   292

            TBMENU_QUIT = wx.NewId()

   293

   294

            def __init__(self, pyroserver):

   295

                wx.TaskBarIcon.__init__(self)

   296

                self.pyroserver = pyroserver

   297

                # Set the image

   298

                self.UpdateIcon(None)

   299

   300

                # bind some events

   301

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

   302

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

   303

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

   304

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

   305

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

   306

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

   307

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

   308

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

   309

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

   310

   311

            def CreatePopupMenu(self):

   312

                """

   313

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

   314

                the menu for the default EVT_RIGHT_DOWN event.  Just create

   315

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

   316

                the base class takes care of the rest.

   317

                """

   318

                menu = wx.Menu()

   319

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

   320

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

   321

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

   322

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

   323

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

   324

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

   325

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

   326

                menu.AppendSeparator()

   327

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

   328

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

   329

                return menu

   330

   331

            def MakeIcon(self, img):

   332

                """

   333

                The various platforms have different requirements for the

   334

                icon size...

   335

                """

   336

                if "wxMSW" in wx.PlatformInfo:

   337

                    img = img.Scale(16, 16)

   338

                elif "wxGTK" in wx.PlatformInfo:

   339

                    img = img.Scale(22, 22)

   340

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

   341

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

   342

                return icon

   343

   344

            def OnTaskBarStartPLC(self, evt):

   345

                if self.pyroserver.plcobj is not None: 

   346

                    self.pyroserver.plcobj.StartPLC()

   347

                evt.Skip()

   348

   349

            def OnTaskBarStopPLC(self, evt):

   350

                if self.pyroserver.plcobj is not None:

   351

                    self.pyroserver.plcobj.StopPLC()

   352

                evt.Skip()

   353

   354

            def OnTaskBarChangeInterface(self, evt):

   355

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

   356

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

   357

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

   358

                               ])

   359

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

   360

                    self.pyroserver.ip_addr = dlg.GetValue()

   361

                    self.pyroserver.Stop()

   362

                evt.Skip()

   363

   364

            def OnTaskBarChangePort(self, evt):

   365

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

   366

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

   367

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

   368

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

   369

                    self.pyroserver.Stop()

   370

                evt.Skip()

   371

   372

            def OnTaskBarChangeWorkingDir(self, evt):

   373

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

   374

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

   375

                    self.pyroserver.workdir = dlg.GetPath()

   376

                    self.pyroserver.Stop()

   377

                evt.Skip()

   378

   379

            def OnTaskBarChangeName(self, evt):

   380

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

   381

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

   382

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

   383

                    self.pyroserver.name = dlg.GetValue()

   384

                    self.pyroserver.Restart()

   385

                evt.Skip()

   386

   387

            def OnTaskBarLiveShell(self, evt):

   388

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

   389

                    from wx import py

   390

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

   391

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

   392

                    frame.Show()

   393

                else:

   394

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

   395

                evt.Skip()

   396

   397

            def OnTaskBarWXInspector(self, evt):

   398

                # Activate the widget inspection tool

   399

                from wx.lib.inspection import InspectionTool

   400

                if not InspectionTool().initialized:

   401

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

   402

   403

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

   404

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

   405

                wnd = wx.FindWindowAtPointer()

   406

                if not wnd:

   407

                    wnd = wx.GetApp()

   408

                InspectionTool().Show(wnd, True)

   409

                evt.Skip()

   410

   411

            def OnTaskBarQuit(self, evt):

   412

                self.pyroserver.Quit()

   413

                self.RemoveIcon()

   414

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

   415

                evt.Skip()

   416

   417

            def UpdateIcon(self, plcstatus):

   418

                if plcstatus is "Started" :

   419

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

   420

                elif plcstatus is "Stopped":

   421

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

   422

                else:

   423

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

   424

                self.SetIcon(currenticon, "Beremiz Service")

   425

   426

from runtime import PLCObject, PLCprint, ServicePublisher

   427

import Pyro.core as pyro

   428

   429

if not os.path.isdir(WorkingDir):

   430

    os.mkdir(WorkingDir)

   431

   432

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

   433

    return callable(*args,**kwargs)

   434

   435

class Server():

   436

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

   437

        self.continueloop = True

   438

        self.daemon = None

   439

        self.servicename = servicename

   440

        self.ip_addr = ip_addr

   441

        self.port = port

   442

        self.workdir = workdir

   443

        self.argv = argv

   444

        self.plcobj = None

   445

        self.servicepublisher = None

   446

        self.autostart = autostart

   447

        self.statuschange = statuschange

   448

        self.evaluator = evaluator

   449

        self.website = website

   450

   451

    def Loop(self):

   452

        while self.continueloop:

   453

            self.Start()

   454

   455

    def Restart(self):

   456

        self.Stop()

   457

   458

    def Quit(self):

   459

        self.continueloop = False

   460

        self.Stop()

   461

   462

    def Start(self):

   463

        pyro.initServer()

   464

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

   465

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

   466

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

   467

   468

        print "Pyro port :",self.port

   469

        print "Pyro object's uri :",uri

   470

        print "Current working directory :",self.workdir

   471

   472

        # Configure and publish service

   473

        # Not publish service if localhost in address params

   474

        if (self.servicename is not None and 

   475

            self.ip_addr is not None and 

   476

            self.ip_addr != "localhost" and 

   477

            self.ip_addr != "127.0.0.1"):

   478

            print "Publishing service on local network"

   479

            self.servicepublisher = ServicePublisher.ServicePublisher()

   480

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

   481

   482

        if self.autostart:

   483

            self.plcobj.StartPLC()

   484

   485

        sys.stdout.flush()

   486

   487

        self.daemon.requestLoop()

   488

   489

    def Stop(self):

   490

        self.plcobj.StopPLC()

   491

        if self.servicepublisher is not None:

   492

            self.servicepublisher.UnRegisterService()

   493

            self.servicepublisher = None

   494

        self.daemon.shutdown(True)

   495