#!/usr/bin/env python """ wicd-curses -- a (curses-based) console interface to wicd Provides the a console UI for wicd, so that people with broken X servers can at least get a network connection. Or those who don't like using X. :-) """ # Copyright (C) 2008 Andrew Psaltis # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301, USA. """ This contains/will contain A LOT of code from the other parts of wicd. This is probably due to the fact that I did not really know what I was doing when I started writing this. It works, so I guess that's all that matters. Comments, criticisms, patches, bug reports all welcome! """ ##### NOTICE: THIS ONLY WORKS WITH THE SOURCE IN WICD 1.6 AS FOUND IN THE BZR ##### REPOSITORIES! # UI stuff #import urwid.raw_display import urwid.curses_display import urwid # DBus communication stuff import dbus import dbus.service # It took me a while to figure out that I have to use this. import gobject # Other important wicd-related stuff import wicd.misc as misc from wicd import dbusmanager # Internal Python stuff import sys from time import sleep # Curses UIs for other stuff from curses_misc import SelText,ComboText import prefs_curses from prefs_curses import PrefOverlay if getattr(dbus, 'version', (0, 0, 0)) < (0, 80, 0): import dbus.glib else: from dbus.mainloop.glib import DBusGMainLoop DBusGMainLoop(set_as_default=True) language = misc.get_language_list_gui() # Whew. Now on to more interesting stuff: ######################################## ##### SUPPORT CLASSES ######################################## # A hack to get any errors that pop out of the program to appear ***AFTER*** the # program exits. # I also may have been a bit overkill about using this too, I guess I'll find # that out soon enough. # I learned about this from this example: # http://blog.lutzky.net/2007/09/16/exception-handling-decorators-and-python/ class wrap_exceptions: def __call__(self, f): def wrap_exceptions(*args, **kargs): try: return f(*args, **kargs) except KeyboardInterrupt: gobject.source_remove(redraw_tag) loop.quit() ui.stop() print "\nTerminated by user." raise except : # If the UI isn't inactive (redraw_tag wouldn't normally be # set), then don't try to stop it, just gracefully die. if redraw_tag != -1: # Remove update_ui from the event queue gobject.source_remove(redraw_tag) # Quit the loop loop.quit() # Zap the screen ui.stop() # Print out standard notification: print "\nEXCEPTION!" print "Please report this to the maintainer and/or file a bug report with the backtrace below:" print redraw_tag # Flush the buffer so that the notification is always above the # backtrace sys.stdout.flush() # Raise the exception #sleep(2) raise return wrap_exceptions ######################################## ##### SUPPORT FUNCTIONS ######################################## # Look familiar? These two functions are clones of functions found in wicd's # gui.py file, except that now set_status is a function passed to them. @wrap_exceptions() def check_for_wired(wired_ip,set_status): """ Determine if wired is active, and if yes, set the status. """ if wired_ip and wired.CheckPluggedIn(): set_status(language['connected_to_wired'].replace('$A',wired_ip)) return True else: return False @wrap_exceptions() def check_for_wireless(iwconfig, wireless_ip, set_status): """ Determine if wireless is active, and if yes, set the status. """ if not wireless_ip: return False network = wireless.GetCurrentNetwork(iwconfig) if not network: return False network = str(network) if daemon.GetSignalDisplayType() == 0: strength = wireless.GetCurrentSignalStrength(iwconfig) else: strength = wireless.GetCurrentDBMStrength(iwconfig) if strength is None: return False strength = str(strength) ip = str(wireless_ip) set_status(language['connected_to_wireless'].replace ('$A', network).replace ('$B', daemon.FormatSignalForPrinting(strength)).replace ('$C', wireless_ip)) return True # Self explanitory, and not used until I can get some list sort function # working... # Also defunct. # Current list header is STR,ESSID,ENCRYPT,BSSID,TYPE,CHANNEL def gen_list_header(): return '%3s %4s %s %19s %s ' % ('NUM','STR','BSSID','CHANNEL','ESSID') # Generate the list of networks. # Mostly borrowed/stolen from wpa_cli, since I had no clue what all of those # DBUS interfaces do. ^_^ # Whatever calls this must be exception-wrapped if it is run if the UI is up def gen_network_list(): # Pick which strength measure to use based on what the daemon says if daemon.GetSignalDisplayType() == 0: strenstr = 'quality' gap = 3 else: strenstr = 'strength' gap = 5 id = 0 wiredL = [] for profile in wired.GetWiredProfileList(): theString = '%4s %25s' % (id, profile) #### THIS IS wired.blah() in experimental #print config.GetLastUsedWiredNetwork() # Tag if no wireless IP present, and wired one is is_active = wireless.GetWirelessIP('') == None and wired.GetWiredIP('') != None if is_active: theString = '>'+theString[1:] #wiredL.append(urwid.AttrWrap(SelText(theString),'connected', # 'connected focus')) #else: # wiredL.append(urwid.AttrWrap(SelText(theString),'body','focus')) wiredL.append(theString) id+=1 wlessL = [] for network_id in range(0, wireless.GetNumberOfNetworks()): # ?: in python encryption = wireless.GetWirelessProperty(network_id, 'encryption_method') if wireless.GetWirelessProperty(network_id, 'encryption') else 'Unsecured' theString = ' %*s %25s %9s %17s %6s: %s' % ( gap, daemon.FormatSignalForPrinting( str(wireless.GetWirelessProperty(network_id, strenstr))), wireless.GetWirelessProperty(network_id, 'essid'), #wireless.GetWirelessProperty(network_id, 'encryption_method'), encryption, wireless.GetWirelessProperty(network_id, 'bssid'), wireless.GetWirelessProperty(network_id, 'mode'), # Master, Ad-Hoc wireless.GetWirelessProperty(network_id, 'channel') ) is_active = wireless.GetCurrentSignalStrength("") != 0 and wireless.GetCurrentNetworkID(wireless.GetIwconfig())==network_id if is_active: theString = '>'+theString[1:] wlessL.append(urwid.AttrWrap(SelText(theString),'connected','connected focus')) else: wlessL.append(urwid.AttrWrap(SelText(theString),'body','focus')) return (wiredL,wlessL) ######################################## ##### APPLICATION INTERFACE CLASS ######################################## # The Whole Shebang class appGUI(): """The UI itself, all glory belongs to it!""" def __init__(self): self.size = ui.get_cols_rows() # Happy screen saying that you can't do anything because we're scanning # for networks. :-) # Will need a translation sooner or later self.screen_locker = urwid.Filler(urwid.Text(('important',"Scanning networks... stand by..."), align='center')) self.TITLE = 'Wicd Curses Interface' #wrap1 = urwid.AttrWrap(txt, 'black') #fill = urwid.Filler(txt) header = urwid.AttrWrap(urwid.Text(self.TITLE,align='right'), 'header') self.wiredH=urwid.Filler(urwid.Text("Wired Network(s)")) self.wlessH=urwid.Filler(urwid.Text("Wireless Network(s)")) self.footer1 = urwid.AttrWrap(urwid.Text("Something important will eventually go here."),'body') self.footer2 = urwid.AttrWrap(urwid.Text("If you are seeing this, then something has gone wrong!"),'important') self.footerList = urwid.ListBox([self.footer1,self.footer2]) # Pop takes a number! #walker.pop(1) nothingness = urwid.Filler(urwid.Text('Hello, world!')) self.frame = urwid.Frame(nothingness, header=header, footer=urwid.BoxAdapter(self.footerList,2)) self.frame.set_focus('body') # Miiiiiiiiiiight be changing this back to something like how it was # originally wiredL,wlessL = gen_network_list() self.wiredCB = urwid.Filler(ComboText('',wiredL,self.frame,ui,3,use_enter=False)) self.wlessLB = urwid.ListBox(wlessL) # Stuff I used to simulate large lists #spam = SelText('spam') #spamL = [ urwid.AttrWrap( w, None, 'focus' ) for w in [spam,spam,spam, # spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam, # spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam, # spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam,spam, # spam,spam,spam,spam] ] #self.spamLB = urwid.ListBox(spamL) self.thePile = urwid.Pile([('fixed',1,self.wiredH), ('fixed',1,self.wiredCB), ('fixed',1,self.wlessH), self.wlessLB] ) self.frame.set_body(self.thePile) # Booleans gallore! self.prev_state = False self.connecting = False self.screen_locked = False self.connecting = False self.update_status() #self.dialog = PrefOverlay(self.frame,self.size) # Does what it says it does def lock_screen(self): self.frame.set_body(self.screen_locker) self.screen_locked = True def unlock_screen(self): self.update_netlist(force_check=True) self.frame.set_body(self.thePile) self.screen_locked = False # I'm hoping that this will get rid of Adam's problem with the ListBox not # redisplaying itself immediately upon completion. self.update_ui() # Be clunky until I get to a later stage of development. # Update the list of networks. Usually called by DBus. # TODO: Preserve current focus when updating the list. @wrap_exceptions() def update_netlist(self,state=None, x=None, force_check=False): """ Updates the overall network list.""" if not state: state, x = daemon.GetConnectionStatus() if self.prev_state != state or force_check: wiredL,wlessL = gen_network_list() self.wiredCB = urwid.Filler(ComboText('',wiredL,self.frame,ui,3, use_enter=False)) self.wlessLB.body = urwid.SimpleListWalker(wlessL) self.prev_state = state # Update the footer/status bar @wrap_exceptions() def update_status(self): wired_connecting = wired.CheckIfWiredConnecting() wireless_connecting = wireless.CheckIfWirelessConnecting() self.connecting = wired_connecting or wireless_connecting fast = not daemon.NeedsExternalCalls() if self.connecting: #self.lock_screen() #if self.statusID: # gobject.idle_add(self.status_bar.remove, 1, self.statusID) if wireless_connecting: if not fast: iwconfig = wireless.GetIwconfig() else: iwconfig = '' # set_status is rigged to return false when it is not # connecting to anything, so this should work. gobject.idle_add(self.set_status, wireless.GetCurrentNetwork(iwconfig) + ': ' + language[str(wireless.CheckWirelessConnectingMessage())], True ) if wired_connecting: gobject.idle_add(self.set_status, language['wired_network'] + ': ' + language[str(wired.CheckWiredConnectingMessage())], True) return True else: if check_for_wired(wired.GetWiredIP(''),self.set_status): return True if not fast: iwconfig = wireless.GetIwconfig() else: iwconfig = '' if check_for_wireless(iwconfig, wireless.GetWirelessIP(""), self.set_status): return True else: self.set_status(language['not_connected']) return True # Cheap little indicator stating that we are actually connecting twirl = ['|','/','-','\\'] def set_status(self,text,from_idle=False): # Set the status text, usually called by the update_status method # from_idle : a check to see if we are being called directly from the # mainloop # If we are being called as the result of trying to connect to # something, and we aren't connecting to something, return False # immediately. if from_idle and not self.connecting: return False toAppend = '' # If we are connecting and being called from the idle function, spin # the wheel. if from_idle and self.connecting: # This is probably the wrong way to do this, but ir works for now. toAppend=self.twirl[self.incr % 4] self.footer2 = urwid.AttrWrap(urwid.Text(text+' '+toAppend),'important') self.frame.set_footer(urwid.BoxAdapter( urwid.ListBox([self.footer1,self.footer2]),2)) return True # Make sure the screen is still working by providing a pretty counter. # Not necessary in the end, but I will be using footer1 for stuff in # the long run, so I might as well put something there. incr = 0 def idle_incr(self): theText = "" if self.connecting: theText = "-- Connecting -- Press ESC to cancel" self.footer1 = urwid.Text(str(self.incr) + ' '+theText) self.incr+=1 return True # Yeah, I'm copying code. Anything wrong with that? #@wrap_exceptions() def dbus_scan_finished(self): # I'm pretty sure that I'll need this later. #if not self.connecting: #self.refresh_networks(fresh=False) self.unlock_screen() # I'm hoping that this will resolve Adam's problem with the screen lock # remaining onscreen until a key is pressed. It goes away perfectly well # here. self.update_ui() # Same, same, same, same, same, same #@wrap_exceptions() def dbus_scan_started(self): self.lock_screen() # Redraw the screen @wrap_exceptions() def update_ui(self): #self.update_status() canvas = self.frame.render( (self.size),True ) ### GRRRRRRRRRRRRRRRRRRRRR ->^^^^ # It looks like if I wanted to get the statusbar to update itself # continuously, I would have to use overlay the canvasses and redirect # the input. I'll try to get that working at a later time, if people # want that "feature". #canvaso = urwid.CanvasOverlay(self.dialog.render( (80,20),True),canvas,0,1) ui.draw_screen((self.size),canvas) keys = ui.get_input() # Should make a keyhandler method, but this will do until I get around to # that stage if "f8" in keys or 'Q' in keys: loop.quit() return False if "f5" in keys: wireless.Scan() if "enter" in keys: # Should be a function of the labels, I think. self.call_connect() if "D" in keys: # Disconnect from all networks. daemon.Disconnect() self.update_netlist() if "esc" in keys: # Force disconnect here if connection in progress daemon.CancelConnect() # Prevents automatic reconnecting if that option is enabled daemon.SetForcedDisconnect(True) if "P" in keys: dialog = PrefOverlay(self.frame,(0,1),ui) dialog.run(ui,self.size,self.frame) for k in keys: if k == "window resize": self.size = ui.get_cols_rows() continue self.frame.keypress( self.size, k ) if " " in keys: self.set_status('space pressed on wiredCB!') wid,pos = self.wiredCB.get_body().get_selected() text,attr = wid.get_text() wired.ReadWiredNetworkProfile(text) # Make sure our internal reference to the combobox matches the # one found in the pile. self.wiredCB = self.thePile.get_focus() return True # Bring back memories, anyone? def call_connect(self): wid = self.thePile.get_focus() if wid is self.wiredCB: #wid2,pos = self.wiredCB.get_focus() # Apparently, connect() doesn't care about the networkid self.connect(self,'wired',0) #return "Wired network %i" % pos elif wid is self.wlessLB: #self.footer1 = urwid.Text("Wireless!") wid2,pos = self.wlessLB.get_focus() self.connect(self,'wireless',pos) else: self.set_status("call_connect() failed! This is definitely a bug!") #return "Failure!" def connect(self, event, nettype, networkid): """ Initiates the connection process in the daemon. """ if nettype == "wireless": # I need to do something that is similar to this in this UI, but # I don't have an "advanced settings" dialog yet. #if not self.check_encryption_valid(networkid, # networkentry.advanced_dialog): # self.edit_advanced(None, None, nettype, networkid, networkentry) # return False wireless.ConnectWireless(networkid) elif nettype == "wired": wired.ConnectWired() self.update_status() ######################################## ##### INITIALIZATION FUNCTIONS ######################################## def main(): global ui # We are _not_ python. misc.RenameProcess('wicd-curses') ui = urwid.curses_display.Screen() # Color scheme. # Other potential color schemes can be found at: # http://excess.org/urwid/wiki/RecommendedPalette # Note: the current palette below is optimized for the linux console. # For example, this looks particularly bad on a default-colored XTerm. # NB: To find current terminal background use variable COLORFGBG ui.register_palette([ ('body','light gray','default'), ('focus','dark magenta','light gray'), ('header','light blue','default'), ('important','light red','default'), ('connected','dark green','default'), ('connected focus','default','dark green'), ('editcp', 'default', 'default', 'standout'), ('editbx', 'light gray', 'dark blue'), ('editfc', 'white','dark blue', 'bold'), ('tab active','dark green','light gray')]) # This is a wrapper around a function that calls another a function that is a # wrapper around a infinite loop. Fun. ui.run_wrapper(run) def run(): global loop,redraw_tag redraw_tag = -1 app = appGUI() # Connect signals and whatnot to UI screen control functions bus.add_signal_receiver(app.dbus_scan_finished, 'SendEndScanSignal', 'org.wicd.daemon.wireless') bus.add_signal_receiver(app.dbus_scan_started, 'SendStartScanSignal', 'org.wicd.daemon.wireless') # I've left this commented out many times. bus.add_signal_receiver(app.update_netlist, 'StatusChanged', 'org.wicd.daemon') loop = gobject.MainLoop() # Update what the interface looks like as an idle function redraw_tag = gobject.idle_add(app.update_ui) # Update the connection status on the bottom every 1.5 s. gobject.timeout_add(1500,app.update_status) gobject.idle_add(app.idle_incr) # DEFUNCT: Terminate the loop if the UI is terminated. #gobject.idle_add(app.stop_loop) loop.run() # Mostly borrowed from gui.py def setup_dbus(force=True): global bus, daemon, wireless, wired, DBUS_AVAIL try: dbusmanager.connect_to_dbus() except DBusException: # I may need to be a little more verbose here. # Suggestions as to what should go here print "Can't connect to the daemon. Are you sure it is running?" print "Please check the wicd log for error messages." raise # return False # <- Will need soon. bus = dbusmanager.get_bus() dbus_ifaces = dbusmanager.get_dbus_ifaces() daemon = dbus_ifaces['daemon'] wireless = dbus_ifaces['wireless'] wired = dbus_ifaces['wired'] DBUS_AVAIL = True return True setup_dbus() ######################################## ##### MAIN ENTRY POINT ######################################## if __name__ == '__main__': main() # Make sure that the terminal does not try to overwrite the last line of # the program, so that everything looks pretty. print ""