| 1 | #! /usr/bin/env python |
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| 2 | # -*- coding: ISO-8859-15 -*- |
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| 3 | |
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| 4 | # PyKotIcon - Client side helper for PyKota |
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| 5 | # |
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| 6 | # (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com> |
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| 7 | # This program is free software; you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation; either version 2 of the License, or |
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| 10 | # (at your option) any later version. |
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| 11 | # |
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| 12 | # This program is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with this program; if not, write to the Free Software |
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| 19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 20 | # |
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| 21 | # $Id$ |
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| 22 | # |
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| 23 | # |
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| 24 | |
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| 25 | import sys |
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| 26 | import os |
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| 27 | import urllib |
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| 28 | import urllib2 |
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| 29 | import locale |
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| 30 | import gettext |
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| 31 | import socket |
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| 32 | import threading |
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| 33 | import xmlrpclib |
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| 34 | import SimpleXMLRPCServer |
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| 35 | |
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| 36 | import time |
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| 37 | |
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| 38 | if sys.platform == "win32" : |
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| 39 | isWindows = 1 |
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| 40 | try : |
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| 41 | import win32api |
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| 42 | except ImportError : |
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| 43 | raise ImportError, "Mark Hammond's Win32 Extensions are missing. Please install them." |
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| 44 | else : |
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| 45 | iconsdir = os.path.split(sys.argv[0])[0] |
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| 46 | else : |
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| 47 | isWindows = 0 |
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| 48 | iconsdir = "/usr/share/pykoticon" # TODO : change this |
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| 49 | import pwd |
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| 50 | |
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| 51 | try : |
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| 52 | import wx |
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| 53 | hasWxPython = 1 |
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| 54 | except ImportError : |
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| 55 | hasWxPython = 0 |
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| 56 | raise ImportError, "wxPython is missing. Please install it." |
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| 57 | |
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| 58 | def getCurrentUserName() : |
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| 59 | """Retrieves the current user's name.""" |
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| 60 | if isWindows : |
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| 61 | return win32api.GetUserName() |
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| 62 | else : |
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| 63 | try : |
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| 64 | return pwd.getpwuid(os.geteuid())[0] |
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| 65 | except : |
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| 66 | return "** Unknown **" |
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| 67 | |
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| 68 | class MyXMLRPCServer(SimpleXMLRPCServer.SimpleXMLRPCServer) : |
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| 69 | """My own server class.""" |
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| 70 | allow_reuse_address = True |
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| 71 | def __init__(self, frame, printserver, localport, debug=False) : |
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| 72 | SimpleXMLRPCServer.SimpleXMLRPCServer.__init__(self, ('0.0.0.0', localport)) |
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| 73 | self.printServer = printserver |
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| 74 | self.frame = frame |
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| 75 | self.debug = debug |
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| 76 | loop = threading.Thread(target=self.mainloop) |
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| 77 | loop.start() |
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| 78 | |
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| 79 | def logDebug(self, message) : |
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| 80 | """Logs a debug message if debug mode is active.""" |
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| 81 | if self.debug : |
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| 82 | sys.stderr.write("%s\n" % message) |
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| 83 | |
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| 84 | def export_quitApplication(self) : |
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| 85 | """Makes the application quit.""" |
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| 86 | self.logDebug("Remote host asked to close the application.") |
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| 87 | self.frame.quitEvent.set() |
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| 88 | wx.CallAfter(self.frame.OnClose, None) |
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| 89 | return True |
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| 90 | |
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| 91 | def export_askDatas(self, labels, varnames, varvalues) : |
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| 92 | """Asks some textual datas defined by a list of labels, a list of variables' names and a list of variables values in a mapping.""" |
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| 93 | wx.CallAfter(self.frame.askDatas, labels, varnames, varvalues) |
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| 94 | # ugly, isn't it ? |
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| 95 | #while self.frame.dialogAnswer is None : |
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| 96 | # time.sleep(0.1) |
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| 97 | # TODO : add value extraction and return a mapping |
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| 98 | self.frame.dialogAnswer = None # prepare for next call, just in case |
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| 99 | return True |
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| 100 | |
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| 101 | def export_showDialog(self, message, yesno) : |
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| 102 | """Opens a notification or confirmation dialog.""" |
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| 103 | wx.CallAfter(self.frame.showDialog, message, yesno) |
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| 104 | # ugly, isn't it ? |
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| 105 | while self.frame.dialogAnswer is None : |
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| 106 | time.sleep(0.1) |
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| 107 | retcode = self.frame.dialogAnswer |
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| 108 | self.frame.dialogAnswer = None # prepare for next call, just in case |
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| 109 | return retcode |
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| 110 | |
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| 111 | def export_nop(self) : |
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| 112 | """Does nothing, but allows a clean shutdown from the frame itself.""" |
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| 113 | self.logDebug("No operation !") |
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| 114 | return True |
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| 115 | |
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| 116 | def verify_request(self, request, client_address) : |
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| 117 | """Ensures that requests which don't come from the print server are rejected.""" |
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| 118 | (client, port) = client_address |
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| 119 | if socket.gethostbyname(self.printServer) == client : |
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| 120 | self.logDebug("%s accepted." % client) |
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| 121 | return True |
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| 122 | else : |
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| 123 | # Unauthorized access ! |
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| 124 | self.logDebug("%s rejected." % client) |
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| 125 | return False |
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| 126 | |
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| 127 | def _dispatch(self, method, params) : |
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| 128 | """Ensure that only export_* methods are available.""" |
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| 129 | return getattr(self, "export_%s" % method)(*params) |
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| 130 | |
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| 131 | def mainloop(self) : |
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| 132 | """XML-RPC Server's main loop.""" |
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| 133 | self.register_function(self.export_askDatas) |
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| 134 | self.register_function(self.export_showDialog) |
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| 135 | self.register_function(self.export_quitApplication) |
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| 136 | self.register_function(self.export_nop) |
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| 137 | while not self.frame.quitEvent.isSet() : |
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| 138 | self.handle_request() |
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| 139 | self.server_close() |
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| 140 | sys.exit(0) |
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| 141 | |
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| 142 | class GenericInputDialog(wx.Frame) : |
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| 143 | """Generic input dialog box.""" |
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| 144 | def __init__(self, parent, id, labels, varnames, varvalues): |
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| 145 | wx.Frame.__init__(self, parent, id, \ |
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| 146 | _("PyKotIcon data input"), \ |
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| 147 | size = (-1, -1), \ |
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| 148 | style = wx.DEFAULT_FRAME_STYLE \ |
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| 149 | | wx.SIZE_AUTO_HEIGHT \ |
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| 150 | | wx.SIZE_AUTO_WIDTH \ |
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| 151 | | wx.STAY_ON_TOP \ |
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| 152 | | wx.NO_FULL_REPAINT_ON_RESIZE) |
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| 153 | vsizer = wx.BoxSizer(wx.VERTICAL) |
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| 154 | for i in range(len(varnames)) : |
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| 155 | varname = varnames[i] |
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| 156 | try : |
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| 157 | label = labels[i] |
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| 158 | except IndexError : |
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| 159 | label = "" |
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| 160 | labelid = wx.NewId() |
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| 161 | varid = wx.NewId() |
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| 162 | label = wx.StaticText(self, labelid, label) |
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| 163 | variable = wx.TextCtrl(self, varid, varvalues.get(varname, "")) |
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| 164 | hsizer = wx.BoxSizer(wx.HORIZONTAL) |
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| 165 | hsizer.Add(label, 0, wx.ALIGN_CENTER | wx.ALIGN_RIGHT | wx.ALL, 5) |
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| 166 | hsizer.Add(variable, 0, wx.ALIGN_CENTER | wx.ALIGN_LEFT | wx.ALL, 5) |
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| 167 | vsizer.Add(hsizer, 0, wx.ALIGN_CENTER | wx.ALL, 5) |
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| 168 | |
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| 169 | buttonid = wx.NewId() |
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| 170 | okbutton = wx.Button(self, buttonid, "OK") |
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| 171 | wx.EVT_BUTTON(self, buttonid, self.OnOK) |
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| 172 | |
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| 173 | wx.EVT_CLOSE(self, self.OnClose) |
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| 174 | |
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| 175 | vsizer.Add(okbutton, 0, wx.ALIGN_CENTER | wx.ALL, 5) |
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| 176 | self.SetAutoLayout(True) |
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| 177 | self.SetSizerAndFit(vsizer) |
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| 178 | self.Layout() |
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| 179 | self.Show(True) |
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| 180 | |
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| 181 | def OnClose(self, event) : |
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| 182 | """Closes the current frame.""" |
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| 183 | self.Destroy() |
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| 184 | |
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| 185 | def OnOK(self, event) : |
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| 186 | """Sets the variables values.""" |
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| 187 | # TODO : do something |
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| 188 | self.Close() |
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| 189 | |
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| 190 | class PyKotIcon(wx.Frame): |
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| 191 | """Main class.""" |
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| 192 | def __init__(self, parent, id): |
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| 193 | self.dialogAnswer = None |
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| 194 | wx.Frame.__init__(self, parent, id, \ |
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| 195 | _("PyKotIcon info for %s") % getCurrentUserName(), \ |
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| 196 | size = (-1, -1), \ |
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| 197 | style = wx.DEFAULT_FRAME_STYLE \ |
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| 198 | | wx.SIZE_AUTO_HEIGHT \ |
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| 199 | | wx.SIZE_AUTO_WIDTH \ |
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| 200 | | wx.NO_FULL_REPAINT_ON_RESIZE) |
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| 201 | try : |
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| 202 | self.tbicon = wx.TaskBarIcon() |
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| 203 | except AttributeError : |
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| 204 | self.tbicon = None # No taskbar icon facility |
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| 205 | |
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| 206 | self.greenicon = wx.Icon(os.path.join(iconsdir, "pykoticon-green.ico"), \ |
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| 207 | wx.BITMAP_TYPE_ICO) |
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| 208 | self.redicon = wx.Icon(os.path.join(iconsdir, "pykoticon-red.ico"), \ |
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| 209 | wx.BITMAP_TYPE_ICO) |
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| 210 | |
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| 211 | self.SetIcon(self.greenicon) |
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| 212 | if self.tbicon is not None : |
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| 213 | self.tbicon.SetIcon(self.greenicon, "PyKotIcon") |
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| 214 | wx.EVT_TASKBAR_LEFT_DCLICK(self.tbicon, self.OnTaskBarActivate) |
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| 215 | wx.EVT_TASKBAR_RIGHT_UP(self.tbicon, self.OnTaskBarMenu) |
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| 216 | |
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| 217 | self.TBMENU_RESTORE = wx.NewId() |
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| 218 | self.TBMENU_CLOSE = wx.NewId() |
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| 219 | wx.EVT_MENU(self.tbicon, self.TBMENU_RESTORE, \ |
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| 220 | self.OnTaskBarActivate) |
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| 221 | wx.EVT_MENU(self.tbicon, self.TBMENU_CLOSE, \ |
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| 222 | self.OnTaskBarClose) |
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| 223 | self.menu = wx.wxMenu() |
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| 224 | self.menu.Append(self.TBMENU_RESTORE, _("Show Print Quota")) |
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| 225 | self.menu.Append(self.TBMENU_CLOSE, _("Quit")) |
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| 226 | |
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| 227 | wx.EVT_ICONIZE(self, self.OnIconify) |
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| 228 | wx.EVT_CLOSE(self, self.OnClose) |
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| 229 | self.Show(True) |
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| 230 | |
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| 231 | def OnIconify(self, event) : |
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| 232 | if not self.IsIconized() : |
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| 233 | self.Iconize(True) |
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| 234 | #self.Hide() |
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| 235 | |
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| 236 | def OnTaskBarActivate(self, event) : |
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| 237 | if self.IsIconized() : |
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| 238 | self.Iconize(False) |
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| 239 | if not self.IsShown() : |
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| 240 | self.Show(True) |
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| 241 | self.Raise() |
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| 242 | |
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| 243 | def OnClose(self, event) : |
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| 244 | self.closeServer() |
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| 245 | if hasattr(self, "menu") : |
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| 246 | self.menu.Destroy() |
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| 247 | del self.menu |
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| 248 | if hasattr(self, "tbicon") and self.tbicon : |
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| 249 | self.tbicon.Destroy() |
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| 250 | del self.tbicon |
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| 251 | self.Destroy() |
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| 252 | |
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| 253 | def OnTaskBarMenu(self, event) : |
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| 254 | if self.tbicon : |
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| 255 | self.tbicon.PopupMenu(self.menu) |
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| 256 | |
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| 257 | def OnTaskBarClose(self, event) : |
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| 258 | self.Close() |
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| 259 | |
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| 260 | def showDialog(self, message, yesno) : |
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| 261 | """Opens a notification dialog.""" |
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| 262 | self.dialogAnswer = None |
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| 263 | if yesno : |
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| 264 | caption = _("Confirmation") |
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| 265 | style = wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION |
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| 266 | else : |
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| 267 | caption = _("Information") |
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| 268 | style = wx.OK | wx.ICON_INFORMATION |
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| 269 | style |= wx.STAY_ON_TOP |
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| 270 | dialog = wx.MessageDialog(self, message, caption, style) |
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| 271 | self.dialogAnswer = ((dialog.ShowModal() == wx.ID_NO) and "CANCEL") or "OK" |
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| 272 | dialog.Destroy() |
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| 273 | |
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| 274 | def askDatas(self, labels, varnames, varvalues) : |
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| 275 | """Opens a dialog box asking for data entry.""" |
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| 276 | # use it this way : self.askDatas(["Username", "Password", "Billing code"], ["username", "password", "billingcode"]) |
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| 277 | frame = GenericInputDialog(self, wx.ID_ANY, labels, varnames, varvalues) |
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| 278 | # TODO : wait for dialog to close, and return the values |
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| 279 | return True |
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| 280 | |
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| 281 | def closeServer(self) : |
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| 282 | """Tells the xml-rpc server to exit.""" |
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| 283 | if not self.quitEvent.isSet() : |
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| 284 | self.quitEvent.set() |
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| 285 | server = xmlrpclib.ServerProxy("http://localhost:%s" % self.port) |
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| 286 | try : |
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| 287 | # wake the server with an empty request |
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| 288 | # for it to see the event object |
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| 289 | # which has just been set |
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| 290 | server.nop() |
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| 291 | except : |
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| 292 | # Probably already stopped |
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| 293 | pass |
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| 294 | |
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| 295 | def postInit(self, printserver, localport) : |
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| 296 | """Starts the XML-RPC server.""" |
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| 297 | self.quitEvent = threading.Event() |
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| 298 | self.port = localport |
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| 299 | self.server = MyXMLRPCServer(self, printserver, localport, debug=True) |
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| 300 | |
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| 301 | |
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| 302 | class PyKotIconApp(wx.PySimpleApp): |
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| 303 | def OnInit(self) : |
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| 304 | self.frame = PyKotIcon(None, wx.ID_ANY) |
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| 305 | return True |
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| 306 | |
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| 307 | def postInit(self, printserver, localport) : |
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| 308 | """Continues processing.""" |
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| 309 | self.frame.postInit(printserver, localport) |
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| 310 | #self.frame.Show(True) |
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| 311 | |
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| 312 | def main(printserver, localport): |
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| 313 | """Program's entry point.""" |
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| 314 | try : |
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| 315 | locale.setlocale(locale.LC_ALL, "") |
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| 316 | except (locale.Error, IOError) : |
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| 317 | sys.stderr.write("Problem while setting locale.\n") |
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| 318 | try : |
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| 319 | gettext.install("pykoticon") |
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| 320 | except : |
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| 321 | gettext.NullTranslations().install() |
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| 322 | app = PyKotIconApp() |
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| 323 | try : |
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| 324 | localport = int(localport) |
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| 325 | except (TypeError, ValueError) : |
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| 326 | raise ValueError, "Invalid TCP port parameter %s\n" % localport |
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| 327 | app.postInit(printserver, localport) |
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| 328 | app.MainLoop() |
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| 329 | |
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| 330 | def crashed() : |
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| 331 | """Minimal crash method.""" |
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| 332 | import traceback |
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| 333 | lines = [] |
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| 334 | for line in traceback.format_exception(*sys.exc_info()) : |
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| 335 | lines.extend([l for l in line.split("\n") if l]) |
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| 336 | msg = "ERROR: ".join(["%s\n" % l for l in (["ERROR: PyKotIcon"] + lines)]) |
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| 337 | sys.stderr.write(msg) |
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| 338 | sys.stderr.flush() |
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| 339 | |
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| 340 | if __name__ == '__main__': |
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| 341 | if len(sys.argv) >= 2 : |
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| 342 | arg = sys.argv[1] |
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| 343 | if arg in ("-v", "--version") : |
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| 344 | print "0.3" |
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| 345 | elif arg in ("-h", "--help") : |
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| 346 | sys.stderr.write("usage : pykoticon pykota_server_hostname_or_ip_address localTCPPort\n") |
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| 347 | else : |
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| 348 | main(*sys.argv[1:3]) |
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| 349 | else : |
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| 350 | sys.stderr.write("usage : pykoticon pykota_server_hostname_or_ip_address localTCPPort\n") |
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