651 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			651 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# -*- coding: utf-8 -*-
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## src/adhoc_commands.py
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##
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## Copyright (C) 2006 Nikos Kouremenos <kourem AT gmail.com>
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## Copyright (C) 2006-2007 Tomasz Melcer <liori AT exroot.org>
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## Copyright (C) 2006-2014 Yann Leboulanger <asterix AT lagaule.org>
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## Copyright (C) 2008 Jonathan Schleifer <js-gajim AT webkeks.org>
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##                    Stephan Erb <steve-e AT h3c.de>
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##
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## This file is part of Gajim.
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##
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## Gajim is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published
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## by the Free Software Foundation; version 3 only.
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##
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## Gajim is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
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##
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# FIXME: think if we need caching command list. it may be wrong if there will
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# be entities that often change the list, it may be slow to fetch it every time
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from gi.repository import GLib
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from gi.repository import Gtk
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import nbxmpp
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from common import gajim
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from common import dataforms
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import gtkgui_helpers
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import dialogs
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import dataforms_widget
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class CommandWindow:
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    """
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    Class for a window for single ad-hoc commands session
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    Note, that there might be more than one for one account/jid pair in one
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    moment.
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    TODO: Maybe put this window into MessageWindow? consider this when it will
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    be possible to manage more than one window of one.
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    TODO: Account/jid pair in MessageWindowMgr.
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    TODO: GTK 2.10 has a special wizard-widget, consider using it...
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    """
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    def __init__(self, account, jid, commandnode=None):
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        """
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        Create new window
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        """
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        # an account object
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        self.account = gajim.connections[account]
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        self.jid = jid
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        self.commandnode = commandnode
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        self.data_form_widget = None
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        # retrieving widgets from xml
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        self.xml = gtkgui_helpers.get_gtk_builder('adhoc_commands_window.ui')
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        self.window = self.xml.get_object('adhoc_commands_window')
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        self.window.connect('delete-event',
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            self.on_adhoc_commands_window_delete_event)
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        for name in ('restart_button', 'back_button', 'forward_button',
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        'execute_button', 'finish_button', 'close_button', 'stages_notebook',
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        'retrieving_commands_stage_vbox', 'command_list_stage_vbox',
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        'command_list_vbox', 'sending_form_stage_vbox',
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        'sending_form_progressbar', 'notes_label', 'no_commands_stage_vbox',
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        'error_stage_vbox', 'error_description_label'):
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            setattr(self, name, self.xml.get_object(name))
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        self.initiate()
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    def initiate(self):
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        self.pulse_id = None      # to satisfy self.setup_pulsing()
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        self.commandlist = None   # a list of (commandname, commanddescription)
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        # command's data
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        self.sessionid = None
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        self.dataform = None
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        self.allow_stage3_close = False
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        # creating data forms widget
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        if self.data_form_widget:
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            self.sending_form_stage_vbox.remove(self.data_form_widget)
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            self.data_form_widget.destroy()
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        self.data_form_widget = dataforms_widget.DataFormWidget()
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        self.data_form_widget.show()
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        self.sending_form_stage_vbox.pack_start(self.data_form_widget, True, True, 0)
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        if self.commandnode:
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            # Execute command
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            self.stage3()
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        else:
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            # setting initial stage
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            self.stage1()
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        # displaying the window
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        self.window.set_title(_('Ad-hoc Commands - Gajim'))
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        self.xml.connect_signals(self)
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        self.window.show_all()
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        self.restart_button.set_sensitive(False)
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    # These functions are set up by appropriate stageX methods.
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    def stage_finish(self, *anything):
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        pass
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    def stage_back_button_clicked(self, *anything):
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        assert False
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    def stage_forward_button_clicked(self, *anything):
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        assert False
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    def stage_execute_button_clicked(self, *anything):
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        assert False
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    def stage_close_button_clicked(self, *anything):
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        assert False
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    def stage_restart_button_clicked(self, *anything):
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        assert False
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    def stage_adhoc_commands_window_delete_event(self, *anything):
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        assert False
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    def do_nothing(self, *anything):
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        return False
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    # Widget callbacks...
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    def on_back_button_clicked(self, *anything):
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        return self.stage_back_button_clicked(*anything)
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    def on_forward_button_clicked(self, *anything):
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        return self.stage_forward_button_clicked(*anything)
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    def on_execute_button_clicked(self, *anything):
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        return self.stage_execute_button_clicked(*anything)
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    def on_finish_button_clicked(self, *anything):
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        return self.stage_finish_button_clicked(*anything)
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    def on_close_button_clicked(self, *anything):
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        return self.stage_close_button_clicked(*anything)
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    def on_restart_button_clicked(self, *anything):
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        return self.stage_restart_button_clicked(*anything)
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    def on_adhoc_commands_window_destroy(self, *anything):
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        # TODO: do all actions that are needed to remove this object from memory
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        self.remove_pulsing()
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    def on_adhoc_commands_window_delete_event(self, *anything):
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        return self.stage_adhoc_commands_window_delete_event(self.window)
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    def __del__(self):
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        print('Object has been deleted.')
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# stage 1: waiting for command list
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    def stage1(self):
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        """
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        Prepare the first stage. Request command list, set appropriate state of
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        widgets
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        """
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        # close old stage...
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        self.stage_finish()
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        # show the stage
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        self.stages_notebook.set_current_page(
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                self.stages_notebook.page_num(
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                        self.retrieving_commands_stage_vbox))
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        # set widgets' state
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        self.close_button.set_sensitive(True)
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        self.back_button.set_sensitive(False)
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        self.forward_button.set_sensitive(False)
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        self.execute_button.set_sensitive(False)
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        self.finish_button.set_sensitive(False)
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        # request command list
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        self.request_command_list()
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        self.setup_pulsing(
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            self.xml.get_object('retrieving_commands_progressbar'))
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        # setup the callbacks
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        self.stage_finish = self.stage1_finish
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        self.stage_close_button_clicked = self.stage1_close_button_clicked
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        self.stage_restart_button_clicked = self.stage1_restart_button_clicked
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        self.stage_adhoc_commands_window_delete_event = \
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            self.stage1_adhoc_commands_window_delete_event
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    def stage1_finish(self):
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        self.remove_pulsing()
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    def stage1_close_button_clicked(self, widget):
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        # cancelling in this stage is not critical, so we don't
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        # show any popups to user
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        self.stage_finish()
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        self.window.destroy()
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    def stage1_restart_button_clicked(self, widget):
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        self.stage_finish()
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        self.restart()
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    def stage1_adhoc_commands_window_delete_event(self, widget):
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        self.stage1_finish()
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        return True
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# stage 2: choosing the command to execute
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    def stage2(self):
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        """
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        Populate the command list vbox with radiobuttons
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        FIXME: If there is more commands, maybe some kind of list, set widgets
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        state
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        """
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        # close old stage
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        self.stage_finish()
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        assert len(self.commandlist)>0
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        self.stages_notebook.set_current_page(
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            self.stages_notebook.page_num(self.command_list_stage_vbox))
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        self.close_button.set_sensitive(True)
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        self.back_button.set_sensitive(False)
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        self.forward_button.set_sensitive(True)
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        self.execute_button.set_sensitive(False)
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        self.finish_button.set_sensitive(False)
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        # build the commands list radiobuttons
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        first_radio = None
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        for (commandnode, commandname) in self.commandlist:
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            radio = Gtk.RadioButton.new_with_label_from_widget(first_radio, commandname)
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            radio.connect("toggled", self.on_command_radiobutton_toggled,
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                commandnode)
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            if not first_radio:
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                first_radio = radio
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                self.commandnode = commandnode
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            self.command_list_vbox.pack_start(radio, False, True, 0)
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        self.command_list_vbox.show_all()
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        self.stage_finish = self.stage2_finish
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        self.stage_close_button_clicked = self.stage2_close_button_clicked
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        self.stage_restart_button_clicked = self.stage2_restart_button_clicked
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        self.stage_forward_button_clicked = self.stage2_forward_button_clicked
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        self.stage_adhoc_commands_window_delete_event = self.do_nothing
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    def stage2_finish(self):
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        """
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        Remove widgets we created. Not needed when the window is destroyed
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        """
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        def remove_widget(widget, param):
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            self.command_list_vbox.remove(widget)
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        self.command_list_vbox.foreach(remove_widget, None)
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    def stage2_close_button_clicked(self, widget):
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        self.stage_finish()
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        self.window.destroy()
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    def stage2_restart_button_clicked(self, widget):
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        self.stage_finish()
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        self.restart()
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    def stage2_forward_button_clicked(self, widget):
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        self.stage3()
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    def on_command_radiobutton_toggled(self, widget, commandnode):
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        self.commandnode = commandnode
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    def on_check_commands_1_button_clicked(self, widget):
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        self.stage1()
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# stage 3: command invocation
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    def stage3(self):
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        # close old stage
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        self.stage_finish()
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        self.form_status = None
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        self.stages_notebook.set_current_page(
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                self.stages_notebook.page_num(
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                        self.sending_form_stage_vbox))
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        self.restart_button.set_sensitive(True)
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        self.close_button.set_sensitive(True)
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        self.back_button.set_sensitive(False)
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        self.forward_button.set_sensitive(False)
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        self.execute_button.set_sensitive(False)
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        self.finish_button.set_sensitive(False)
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        self.stage3_submit_form()
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        self.stage_finish = self.stage3_finish
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        self.stage_back_button_clicked = self.stage3_back_button_clicked
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        self.stage_forward_button_clicked = self.stage3_forward_button_clicked
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        self.stage_execute_button_clicked = self.stage3_execute_button_clicked
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        self.stage_finish_button_clicked = self.stage3_finish_button_clicked
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        self.stage_close_button_clicked = self.stage3_close_button_clicked
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        self.stage_restart_button_clicked = self.stage3_restart_button_clicked
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        self.stage_adhoc_commands_window_delete_event = \
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            self.stage3_close_button_clicked
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    def stage3_finish(self):
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        pass
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    def stage3_can_close(self, cb):
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        if self.form_status == 'completed':
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            cb()
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            return
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        def on_yes(button):
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            self.send_cancel()
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            dialog.destroy()
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            cb()
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        dialog = dialogs.HigDialog(self.window, Gtk.MessageType.WARNING,
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            Gtk.ButtonsType.YES_NO, _('Cancel confirmation'),
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            _('You are in process of executing command. Do you really want to '
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            'cancel it?'), on_response_yes=on_yes)
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        dialog.popup()
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    def stage3_close_button_clicked(self, widget):
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        """
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        We are in the middle of executing command. Ask user if he really want to
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        cancel the process, then cancel it
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        """
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        # this works also as a handler for window_delete_event, so we have to
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        # return appropriate values
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        if self.allow_stage3_close:
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            return False
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        def on_ok():
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            self.allow_stage3_close = True
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            self.window.destroy()
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        self.stage3_can_close(on_ok)
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        return True # Block event, don't close window
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    def stage3_restart_button_clicked(self, widget):
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        def on_ok():
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            self.restart()
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        self.stage3_can_close(on_ok)
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    def stage3_back_button_clicked(self, widget):
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        self.stage3_submit_form('prev')
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    def stage3_forward_button_clicked(self, widget):
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        self.stage3_submit_form('next')
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    def stage3_execute_button_clicked(self, widget):
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        self.stage3_submit_form('execute')
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    def stage3_finish_button_clicked(self, widget):
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        self.stage3_submit_form('complete')
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    def stage3_submit_form(self, action='execute'):
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        self.data_form_widget.set_sensitive(False)
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        if self.data_form_widget.get_data_form():
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            df = self.data_form_widget.get_data_form()
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            if not df.is_valid():
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                dialogs.ErrorDialog(
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                    _('Invalid Form'),
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                    _('The form is not filled correctly.'),
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                    transient_for=self.window)
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                self.data_form_widget.set_sensitive(True)
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                return
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            self.data_form_widget.data_form.type_ = 'submit'
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        else:
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            self.data_form_widget.hide()
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        self.close_button.set_sensitive(True)
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        self.back_button.set_sensitive(False)
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        self.forward_button.set_sensitive(False)
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        self.execute_button.set_sensitive(False)
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        self.finish_button.set_sensitive(False)
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        self.sending_form_progressbar.show()
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        self.setup_pulsing(self.sending_form_progressbar)
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        self.send_command(action)
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    def stage3_next_form(self, command):
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        if not isinstance(command, nbxmpp.Node):
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            self.stage5(error=_('Service sent malformed data'), senderror=True)
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            return
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        self.remove_pulsing()
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        self.sending_form_progressbar.hide()
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        if not self.sessionid:
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            self.sessionid = command.getAttr('sessionid')
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        elif self.sessionid != command.getAttr('sessionid'):
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            self.stage5(error=_('Service changed the session identifier.'),
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                    senderror=True)
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            return
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        self.form_status = command.getAttr('status')
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        self.commandnode = command.getAttr('node')
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        if command.getTag('x'):
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            self.dataform = dataforms.ExtendForm(node=command.getTag('x'))
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            self.data_form_widget.set_sensitive(True)
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            try:
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                self.data_form_widget.selectable = True
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                self.data_form_widget.data_form = self.dataform
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            except dataforms.Error:
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                self.stage5(error=_('Service sent malformed data'),
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                    senderror=True)
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                return
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            self.data_form_widget.show()
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            if self.data_form_widget.title:
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                self.window.set_title(_('%s - Ad-hoc Commands - Gajim') % \
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                        self.data_form_widget.title)
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        else:
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            self.data_form_widget.hide()
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        actions = command.getTag('actions')
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        if actions:
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            # actions, actions, actions...
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            self.close_button.set_sensitive(True)
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            self.back_button.set_sensitive(actions.getTag('prev') is not None)
 | 
						|
            self.forward_button.set_sensitive(
 | 
						|
                actions.getTag('next') is not None)
 | 
						|
            self.execute_button.set_sensitive(True)
 | 
						|
            self.finish_button.set_sensitive(actions.getTag('complete') is not \
 | 
						|
                None)
 | 
						|
        else:
 | 
						|
            self.close_button.set_sensitive(True)
 | 
						|
            self.back_button.set_sensitive(False)
 | 
						|
            self.forward_button.set_sensitive(False)
 | 
						|
            self.execute_button.set_sensitive(True)
 | 
						|
            self.finish_button.set_sensitive(False)
 | 
						|
 | 
						|
        if self.form_status == 'completed':
 | 
						|
            self.close_button.set_sensitive(True)
 | 
						|
            self.back_button.hide()
 | 
						|
            self.forward_button.hide()
 | 
						|
            self.execute_button.hide()
 | 
						|
            self.finish_button.hide()
 | 
						|
            self.close_button.show()
 | 
						|
            self.stage_adhoc_commands_window_delete_event = \
 | 
						|
                self.stage3_close_button_clicked
 | 
						|
 | 
						|
        note = command.getTag('note')
 | 
						|
        if note:
 | 
						|
            self.notes_label.set_text(note.getData())
 | 
						|
            self.notes_label.set_no_show_all(False)
 | 
						|
            self.notes_label.show()
 | 
						|
        else:
 | 
						|
            self.notes_label.set_no_show_all(True)
 | 
						|
            self.notes_label.hide()
 | 
						|
 | 
						|
    def restart(self):
 | 
						|
        self.commandnode = None
 | 
						|
        self.initiate()
 | 
						|
 | 
						|
# stage 4: no commands are exposed
 | 
						|
    def stage4(self):
 | 
						|
        """
 | 
						|
        Display the message. Wait for user to close the window
 | 
						|
        """
 | 
						|
        # close old stage
 | 
						|
        self.stage_finish()
 | 
						|
 | 
						|
        self.stages_notebook.set_current_page(
 | 
						|
            self.stages_notebook.page_num(self.no_commands_stage_vbox))
 | 
						|
 | 
						|
        self.close_button.set_sensitive(True)
 | 
						|
        self.back_button.set_sensitive(False)
 | 
						|
        self.forward_button.set_sensitive(False)
 | 
						|
        self.execute_button.set_sensitive(False)
 | 
						|
        self.finish_button.set_sensitive(False)
 | 
						|
 | 
						|
        self.stage_finish = self.do_nothing
 | 
						|
        self.stage_close_button_clicked = self.stage4_close_button_clicked
 | 
						|
        self.stage_restart_button_clicked = self.stage4_restart_button_clicked
 | 
						|
        self.stage_adhoc_commands_window_delete_event = self.do_nothing
 | 
						|
 | 
						|
    def stage4_close_button_clicked(self, widget):
 | 
						|
        self.window.destroy()
 | 
						|
 | 
						|
    def stage4_restart_button_clicked(self, widget):
 | 
						|
        self.restart()
 | 
						|
 | 
						|
    def on_check_commands_2_button_clicked(self, widget):
 | 
						|
        self.stage1()
 | 
						|
 | 
						|
# stage 5: an error has occured
 | 
						|
    def stage5(self, error=None, errorid=None, senderror=False):
 | 
						|
        """
 | 
						|
        Display the error message. Wait for user to close the window
 | 
						|
        """
 | 
						|
        # FIXME: sending error to responder
 | 
						|
        # close old stage
 | 
						|
        self.stage_finish()
 | 
						|
 | 
						|
        assert errorid or error
 | 
						|
 | 
						|
        if errorid:
 | 
						|
            # we've got error code, display appropriate message
 | 
						|
            try:
 | 
						|
                errorname = nbxmpp.NS_STANZAS + ' ' + str(errorid)
 | 
						|
                errordesc = nbxmpp.ERRORS[errorname][2]
 | 
						|
                error = errordesc
 | 
						|
                del errorname, errordesc
 | 
						|
            except KeyError:        # when stanza doesn't have error description
 | 
						|
                error = _('Service returned an error.')
 | 
						|
        elif error:
 | 
						|
            # we've got error message
 | 
						|
            pass
 | 
						|
        else:
 | 
						|
            # we don't know what's that, bailing out
 | 
						|
            assert False
 | 
						|
 | 
						|
        self.stages_notebook.set_current_page(
 | 
						|
            self.stages_notebook.page_num(self.error_stage_vbox))
 | 
						|
 | 
						|
        self.close_button.set_sensitive(True)
 | 
						|
        self.back_button.hide()
 | 
						|
        self.forward_button.hide()
 | 
						|
        self.execute_button.hide()
 | 
						|
        self.finish_button.hide()
 | 
						|
 | 
						|
        self.error_description_label.set_text(error)
 | 
						|
 | 
						|
        self.stage_finish = self.do_nothing
 | 
						|
        self.stage_close_button_clicked = self.stage5_close_button_clicked
 | 
						|
        self.stage_restart_button_clicked = self.stage5_restart_button_clicked
 | 
						|
        self.stage_adhoc_commands_window_delete_event = self.do_nothing
 | 
						|
 | 
						|
    def stage5_close_button_clicked(self, widget):
 | 
						|
        self.window.destroy()
 | 
						|
 | 
						|
    def stage5_restart_button_clicked(self, widget):
 | 
						|
        self.restart()
 | 
						|
 | 
						|
# helpers to handle pulsing in progressbar
 | 
						|
    def setup_pulsing(self, progressbar):
 | 
						|
        """
 | 
						|
        Set the progressbar to pulse. Makes a custom function to repeatedly call
 | 
						|
        progressbar.pulse() method
 | 
						|
        """
 | 
						|
        assert not self.pulse_id
 | 
						|
        assert isinstance(progressbar, Gtk.ProgressBar)
 | 
						|
 | 
						|
        def callback():
 | 
						|
            progressbar.pulse()
 | 
						|
            return True     # important to keep callback be called back!
 | 
						|
 | 
						|
        # 12 times per second (80 miliseconds)
 | 
						|
        self.pulse_id = GLib.timeout_add(80, callback)
 | 
						|
 | 
						|
    def remove_pulsing(self):
 | 
						|
        """
 | 
						|
        Stop pulsing, useful when especially when removing widget
 | 
						|
        """
 | 
						|
        if self.pulse_id:
 | 
						|
            GLib.source_remove(self.pulse_id)
 | 
						|
        self.pulse_id = None
 | 
						|
 | 
						|
# handling xml stanzas
 | 
						|
    def request_command_list(self):
 | 
						|
        """
 | 
						|
        Request the command list. Change stage on delivery
 | 
						|
        """
 | 
						|
        query = nbxmpp.Iq(typ='get', to=nbxmpp.JID(self.jid),
 | 
						|
            queryNS=nbxmpp.NS_DISCO_ITEMS)
 | 
						|
        query.setQuerynode(nbxmpp.NS_COMMANDS)
 | 
						|
 | 
						|
        def callback(response):
 | 
						|
            '''Called on response to query.'''
 | 
						|
            # FIXME: move to connection_handlers.py
 | 
						|
            # is error => error stage
 | 
						|
            error = response.getError()
 | 
						|
            if error:
 | 
						|
                # extracting error description
 | 
						|
                self.stage5(errorid=error)
 | 
						|
                return
 | 
						|
 | 
						|
            # no commands => no commands stage
 | 
						|
            # commands => command selection stage
 | 
						|
            query = response.getTag('query')
 | 
						|
            if query and query.getAttr('node') == nbxmpp.NS_COMMANDS:
 | 
						|
                items = query.getTags('item')
 | 
						|
            else:
 | 
						|
                items = []
 | 
						|
            if len(items)==0:
 | 
						|
                self.commandlist = []
 | 
						|
                self.stage4()
 | 
						|
            else:
 | 
						|
                self.commandlist = [(t.getAttr('node'), t.getAttr('name')) \
 | 
						|
                    for t in items]
 | 
						|
                self.stage2()
 | 
						|
 | 
						|
        self.account.connection.SendAndCallForResponse(query, callback)
 | 
						|
 | 
						|
    def send_command(self, action='execute'):
 | 
						|
        """
 | 
						|
        Send the command with data form. Wait for reply
 | 
						|
        """
 | 
						|
        # create the stanza
 | 
						|
        assert action in ('execute', 'prev', 'next', 'complete')
 | 
						|
 | 
						|
        stanza = nbxmpp.Iq(typ='set', to=self.jid)
 | 
						|
        cmdnode = stanza.addChild('command', namespace=nbxmpp.NS_COMMANDS,
 | 
						|
            attrs={'node':self.commandnode, 'action':action})
 | 
						|
 | 
						|
        if self.sessionid:
 | 
						|
            cmdnode.setAttr('sessionid', self.sessionid)
 | 
						|
 | 
						|
        if self.data_form_widget.data_form:
 | 
						|
            cmdnode.addChild(node=self.data_form_widget.data_form.get_purged())
 | 
						|
 | 
						|
        def callback(response):
 | 
						|
            # FIXME: move to connection_handlers.py
 | 
						|
            err = response.getError()
 | 
						|
            if err:
 | 
						|
                self.stage5(errorid = err)
 | 
						|
            else:
 | 
						|
                self.stage3_next_form(response.getTag('command'))
 | 
						|
 | 
						|
        self.account.connection.SendAndCallForResponse(stanza, callback)
 | 
						|
 | 
						|
    def send_cancel(self):
 | 
						|
        """
 | 
						|
        Send the command with action='cancel'
 | 
						|
        """
 | 
						|
        assert self.commandnode
 | 
						|
        if self.sessionid and self.account.connection:
 | 
						|
            # we already have sessionid, so the service sent at least one reply.
 | 
						|
            stanza = nbxmpp.Iq(typ='set', to=self.jid)
 | 
						|
            stanza.addChild('command', namespace=nbxmpp.NS_COMMANDS, attrs={
 | 
						|
                            'node':self.commandnode,
 | 
						|
                            'sessionid':self.sessionid,
 | 
						|
                            'action':'cancel'
 | 
						|
                    })
 | 
						|
 | 
						|
            self.account.connection.send(stanza)
 | 
						|
        else:
 | 
						|
            # we did not received any reply from service;
 | 
						|
            # FIXME: we should wait and then send cancel; for now we do nothing
 | 
						|
            pass
 |