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 name] [-i ip] [-p port] [-x enabletaskbar]|-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

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

    36

    37

           working_dir - directory where are stored PLC files

    38

"""%sys.argv[0]

    39

    40

try:

    42

except getopt.GetoptError, err:

    43

    # print help information and exit:

    44

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

    45

    usage()

    46

    sys.exit(2)

    47

    48

# default values

    49

ip = ""

    50

port = 3000

    51

name = os.environ[{

    52

     "linux2":"USER",

    53

     "win32":"USERNAME",

    54

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

    55

enablewx = True

    56

havewx = False

    57

    58

for o, a in opts:

    59

    if o == "-h":

    60

        usage()

    61

        sys.exit()

    62

    elif o == "-i":

    63

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

    64

            ip = a

    65

    elif o == "-p":

    66

        # port: port that the service runs on

    67

        port = int(a)

    68

    elif o == "-n":

    69

        name = a

    70

    elif o == "-x":

    71

        enablewx = int(a)

    72

    else:

    73

        usage()

    74

        sys.exit()

    75

    77

    usage()

    78

    sys.exit()

    82

    WorkingDir = os.getcwd()

    84

    85

if enablewx:

    86

    try:

    87

        import wx, re

    88

        from threading import Thread

    89

        from types import *

    90

        havewx = True

    91

    except:

    92

        havewx = False

    93

    94

    if havewx:

    95

        try:

    96

            from wx.lib.embeddedimage import PyEmbeddedImage

    97

        except:

    98

            import cStringIO

    99

            import base64

   100

   101

            class PyEmbeddedImage:

   102

                def __init__(self, image_string):

   103

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

   104

                    self.Image = wx.ImageFromStream(stream)

   105

                def GetImage(self):

   106

                    return self.Image

   107

   108

        defaulticon = PyEmbeddedImage(

   109

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABc5J"

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   138

   139

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

   140

        starticon = PyEmbeddedImage(

   141

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABbpJ"

   142

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   169

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   170

   171

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

   172

        stopicon = PyEmbeddedImage(

   173

        "iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABHNCSVQICAgIfAhkiAAABPRJ"

   174

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   179

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   180

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   192

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   197

        "aHyBTKdjum0POGzbFAp7qo0xVOtJZdf/C/wRDnL5FYGSAAAAAElFTkSuQmCC")

   198

   199

    class ParamsEntryDialog(wx.TextEntryDialog):

   200

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

   201

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

   202

                if id is not None:

   203

                    event(self, id, function)

   204

                else:

   205

                    event(self, function)

   206

   207

   208

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

   209

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

   210

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

   211

   212

            self.Tests = []

   213

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

   214

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

   215

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

   216

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

   217

            else:

   218

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

   219

   220

        def OnOK(self, event):

   221

            value = self.GetValue()

   222

            texts = {"value" : value}

   223

            for function, message in self.Tests:

   224

                if not function(value):

   225

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

   226

                    message.ShowModal()

   227

                    message.Destroy()

   228

                    return

   229

            self.EndModal(wx.ID_OK)

   230

            event.Skip()

   231

   232

        def GetValue(self):

   233

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

   234

   235

        def SetTests(self, tests):

   236

            self.Tests = tests

   237

   238

    class BeremizTaskBarIcon(wx.TaskBarIcon):

   239

        TBMENU_CHANGE_NAME = wx.NewId()

   240

        TBMENU_CHANGE_PORT = wx.NewId()

   241

        TBMENU_CHANGE_INTERFACE = wx.NewId()

   242

        TBMENU_LIVE_SHELL = wx.NewId()

   243

        TBMENU_CHANGE_WD = wx.NewId()

   244

        TBMENU_QUIT = wx.NewId()

   245

   246

        def __init__(self, pyroserver):

   247

            wx.TaskBarIcon.__init__(self)

   248

            self.pyroserver = pyroserver

   249

            # Set the image

   250

            self.UpdateIcon(None)

   251

   252

            # bind some events

   253

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

   254

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

   255

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

   256

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

   257

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

   258

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

   259

   260

        def CreatePopupMenu(self):

   261

            """

   262

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

   263

            the menu for the default EVT_RIGHT_DOWN event.  Just create

   264

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

   265

            the base class takes care of the rest.

   266

            """

   267

            menu = wx.Menu()

   268

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

   269

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

   270

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

   271

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

   272

            menu.AppendSeparator()

   273

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

   274

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

   275

            return menu

   276

   277

        def MakeIcon(self, img):

   278

            """

   279

            The various platforms have different requirements for the

   280

            icon size...

   281

            """

   282

            if "wxMSW" in wx.PlatformInfo:

   283

                img = img.Scale(16, 16)

   284

            elif "wxGTK" in wx.PlatformInfo:

   285

                img = img.Scale(22, 22)

   286

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

   287

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

   288

            return icon

   289

   290

        def OnTaskBarChangeInterface(self,evt):

   291

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

   292

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

   293

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

   294

                           ])

   295

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

   296

                self.pyroserver.ip = dlg.GetValue()

   297

                self.pyroserver.Stop()

   298

            evt.Skip()

   299

   300

        def OnTaskBarChangePort(self,evt):

   301

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

   302

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

   303

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

   304

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

   305

                self.pyroserver.Stop()

   306

            evt.Skip()

   307

   308

        def OnTaskBarChangeWorkingDir(self,evt):

   309

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

   310

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

   311

                self.pyroserver.workdir = dlg.GetPath()

   312

                self.pyroserver.Stop()

   313

            evt.Skip()

   314

   315

        def OnTaskBarChangeName(self,evt):

   316

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

   317

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

   318

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

   319

                self.pyroserver.name = dlg.GetValue()

   320

                self.pyroserver.Restart()

   321

            evt.Skip()

   322

   323

        def OnTaskBarLiveShell(self,evt):

   324

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

   325

                from wx import py

   326

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

   327

                frame.Show()

   328

            else:

   329

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

   330

            evt.Skip()

   331

   332

        def OnTaskBarQuit(self,evt):

   333

            pyroserver.Quit()

   334

            self.RemoveIcon()

   335

            wx.GetApp().ExitMainLoop()

   336

            evt.Skip()

   337

   338

        def UpdateIcon(self, plcstatus):

   339

            if plcstatus is "Started" :

   340

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

   341

            elif plcstatus is "Stopped":

   342

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

   343

            else:

   344

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

   345

            self.SetIcon(currenticon, "Beremiz Service")

   346

   347

from runtime import PLCObject, ServicePublisher

   348

import Pyro.core as pyro

   349

   350

if not os.path.isdir(WorkingDir):

   351

    os.mkdir(WorkingDir)

   352

   353

class Server():

   355

        self.continueloop = True

   356

        self.daemon = None

   357

        self.name = name

   358

        self.ip = ip

   359

        self.port = port

   360

        self.workdir = workdir

   362

        self.plcobj = None

   363

        self.servicepublisher = None

   364

        self.statuschange = statuschange

   368

        while self.continueloop:

   369

            self.Start()

   370

   371

    def Restart(self):

   372

        self.Stop()

   373

   374

    def Quit(self):

   375

        self.continueloop = False

   376

        self.Stop()

   377

   378

    def Start(self):

   379

        pyro.initServer()

   380

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

   382

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

   383

   384

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

   385

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

   386

        print "The working directory :",self.workdir

   387

   388

        # Configure and publish service

   389

        # Not publish service if localhost in address params

   390

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

   391

            print "Publish service on local network"

   392

            self.servicepublisher = ServicePublisher.ServicePublisher()            

   393

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

   394

   395

        sys.stdout.flush()

   396

   397

        self.daemon.requestLoop()

   398

   399

    def Stop(self):

   400

        if self.servicepublisher is not None:

   401

            self.servicepublisher.UnRegisterService()

   402

            del self.servicepublisher

   403

        self.daemon.shutdown(True)

   404

   405

   406

if havewx:

   409

    app=wx.App(redirect=False)

   410

    def statuschange(status):

   411

        wx.CallAfter(taskbar_instance.UpdateIcon,status)

   429

    pyro_thread.start()

   430

    app.MainLoop()

   431

else:

   433

    pyroserver.Loop()