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|
#
# firewall_gui.py: firewall setup screen
#
# Copyright 2001 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import checklist
import gtk
from iw_gui import *
from isys import *
from translate import _, N_
class FirewallWindow (InstallWindow):
windowTitle = N_("Firewall Configuration")
htmlTag = "securitylevel"
def __init__ (self, ics):
InstallWindow.__init__ (self, ics)
def getNext (self):
if not self.__dict__.has_key("sec_none_radio"):
return None
if self.sec_none_radio.get_active ():
self.firewall.enabled = 0
self.firewall.policy = 1
else:
if self.sec_high_radio.get_active ():
self.firewall.policy = 0
self.firewall.enabled = 1
elif self.sec_med_radio.get_active ():
self.firewall.policy = 1
self.firewall.enabled = 1
if self.default_radio.get_active ():
self.firewallState = 0
if self.custom_radio.get_active ():
self.firewallState = 1
count = 0
self.firewall.trustdevs = []
for device in self.devices:
(val, row_data, header) = self.trusted.get_row_data (count)
if val == 1:
self.firewall.trustdevs.append(device)
count = count + 1
for i in range(6):
(val, row_data, header) = self.incoming.get_row_data (i)
if row_data == "DHCP":
self.firewall.dhcp = val
elif row_data == "SSH":
self.firewall.ssh = val
elif row_data == "Telnet":
self.firewall.telnet = val
elif row_data == "WWW (HTTP)":
self.firewall.http = val
elif row_data == "Mail (SMTP)":
self.firewall.smtp = val
elif row_data == "FTP":
self.firewall.ftp = val
portstring = string.strip(self.ports.get_text())
portlist = ""
bad_token_found = 0
bad_token = ""
if portstring != "":
tokens = string.split(portstring, ',')
for token in tokens:
try:
if string.index(token,':'): #- if there's a colon in the token, it's valid
parts = string.split(token, ':')
if len(parts) > 2: #- We've found more than one colon. Break loop and raise an error.
bad_token_found = 1
bad_token = token
else:
if parts[1] == 'tcp' or parts[1] == 'udp': #-upd and tcp are the only valid protocols
if portlist == "":
portlist = token
else:
portlist = portlist + ',' + token
else: #- Found a protocol other than tcp or udp. Break loop
bad_token_found = 1
bad_token = token
pass
except:
if token != "":
if portlist == "":
portlist = token + ":tcp"
else:
portlist = portlist + ',' + token + ':tcp'
else:
pass
if bad_token_found == 1: #- We've found a bad token...raise a warning
from gnome.ui import *
import gui
self.textWin = GnomeDialog ()
self.textWin.set_modal (gtk.TRUE)
vbox = gtk.VBox()
hbox = gtk.HBox()
hbox.pack_start (GnomePixmap ('/usr/share/pixmaps/gnome-warning.png'), gtk.FALSE)
self.textWin.vbox.pack_start(hbox)
hbox.pack_start(vbox)
self.textWin.set_default_size (500, 200)
self.textWin.set_usize (500, 200)
self.textWin.set_position (WIN_POS_CENTER)
label = gtk.Label((_("Warning: ")) + bad_token + (_(" is an invalid port.")))
vbox.pack_start(label)
label = gtk.Label(_("The format is 'port:protocol'. For example, '1234:udp'"))
vbox.pack_start(label)
self.textWin.append_button(_("Close"))
self.textWin.button_connect (0, self.textWin.destroy)
self.textWin.set_border_width(0)
self.textWin.show_all()
raise gui.StayOnScreen
else: # all the port data looks good
self.firewall.portlist = portlist
def activate_firewall (self, widget):
if self.sec_none_radio.get_active ():
active = not (self.sec_none_radio.get_active())
self.default_radio.set_sensitive (active)
self.custom_radio.set_sensitive (active)
self.trusted.set_sensitive(active)
self.incoming.set_sensitive(active)
self.ports.set_sensitive(active)
self.label1.set_sensitive(active)
self.label2.set_sensitive(active)
self.label3.set_sensitive(active)
else:
self.default_radio.set_sensitive (gtk.TRUE)
self.custom_radio.set_sensitive (gtk.TRUE)
if self.custom_radio.get_active ():
self.trusted.set_sensitive(self.custom_radio.get_active())
self.incoming.set_sensitive(self.custom_radio.get_active())
self.ports.set_sensitive(self.custom_radio.get_active())
self.label1.set_sensitive(self.custom_radio.get_active())
self.label2.set_sensitive(self.custom_radio.get_active())
self.label3.set_sensitive(self.custom_radio.get_active())
else:
self.trusted.set_sensitive(self.custom_radio.get_active())
self.incoming.set_sensitive(self.custom_radio.get_active())
self.ports.set_sensitive(self.custom_radio.get_active())
self.label1.set_sensitive(self.custom_radio.get_active())
self.label2.set_sensitive(self.custom_radio.get_active())
self.label3.set_sensitive(self.custom_radio.get_active())
def trusted_select_row(self, clist, event):
try:
row, col = self.trusted.get_selection_info (event.x, event.y)
self.toggle_row(self.trusted, row)
except:
pass
def incoming_select_row(self, clist, event):
try:
row, col = self.incoming.get_selection_info (event.x, event.y)
self.toggle_row(self.incoming, row)
except:
pass
def trusted_key_press (self, list, event):
if event.keyval == ord(" ") and self.trusted.focus_row != -1:
self.toggle_row (self.trusted, self.trusted.focus_row)
def incoming_key_press (self, list, event):
if event.keyval == ord(" ") and self.incoming.focus_row != -1:
self.toggle_row (self.incoming, self.incoming.focus_row)
def toggle_row (self, list, row):
(val, row_data, header) = list.get_row_data(row)
val = not val
list.set_row_data(row, (val, row_data, header))
list._update_row (row)
def getScreen (self, network, firewall):
self.firewall = firewall
self.network = network
self.devices = self.network.available().keys()
self.devices.sort()
self.netCBs = {}
box = gtk.VBox (gtk.FALSE, 5)
box.set_border_width (5)
label = gtk.Label (_("Please choose your security level: "))
label.set_alignment (0.0, 0.5)
label.set_line_wrap (gtk.TRUE)
box.pack_start(label, gtk.FALSE)
hbox = gtk.HBox (gtk.FALSE)
self.sec_high_radio = gtk.RadioButton (None, (_("High")))
self.sec_med_radio = gtk.RadioButton (self.sec_high_radio, (_("Medium")))
self.sec_none_radio = gtk.RadioButton (self.sec_high_radio, (_("No firewall")))
self.sec_none_radio.connect ("clicked", self.activate_firewall)
hbox.pack_start (self.sec_high_radio)
hbox.pack_start (self.sec_med_radio)
hbox.pack_start (self.sec_none_radio)
a = gtk.Alignment ()
a.add (hbox)
a.set (1.0, 0.5, 0.7, 1.0)
box.pack_start (a, gtk.FALSE)
hsep = gtk.HSeparator ()
box.pack_start (hsep, gtk.FALSE)
self.default_radio = gtk.RadioButton (None, (_("Use default firewall rules")))
self.custom_radio = gtk.RadioButton (self.default_radio, (_("Customize")))
self.default_radio.set_active (gtk.TRUE)
self.default_radio.connect ("clicked", self.activate_firewall)
self.custom_radio.connect ("clicked", self.activate_firewall)
box.pack_start (self.default_radio, gtk.FALSE)
box.pack_start (self.custom_radio, gtk.FALSE)
table = gtk.Table (2, 3)
box.pack_start (table)
hbox = gtk.HBox(gtk.FALSE, 10)
self.label1 = gtk.Label (_("Trusted devices:"))
self.label1.set_alignment (0.2, 0.0)
self.trusted = checklist.CheckList(1)
self.trusted.connect ('button_press_event', self.trusted_select_row)
self.trusted.connect ("key_press_event", self.trusted_key_press)
if self.devices != []:
table.attach (self.label1, 0, 1, 0, 1, gtk.FILL, gtk.FILL, 5, 5)
table.attach (self.trusted, 1, 2, 0, 1, gtk.EXPAND|gtk.FILL, gtk.FILL, 5, 5)
count = 0
for device in self.devices:
if self.firewall.trustdevs == []:
self.trusted.append_row ((device, device), gtk.FALSE)
else:
if device in self.firewall.trustdevs:
self.trusted.append_row ((device, device), gtk.TRUE)
else:
self.trusted.append_row ((device, device), gtk.FALSE)
if self.network.netdevices[device].get('bootproto') == 'dhcp':
self.firewall.dhcp = 1
count = count + 1
hbox = gtk.HBox(gtk.FALSE, 10)
self.label2 = gtk.Label (_("Allow incoming:"))
self.label2.set_alignment (0.2, 0.0)
self.incoming = checklist.CheckList(1)
self.incoming.connect ('button_press_event', self.incoming_select_row)
self.incoming.connect ("key_press_event", self.incoming_key_press)
table.attach (self.label2, 0, 1, 1, 2, gtk.FILL, gtk.FILL, 5, 5)
table.attach (self.incoming, 1, 2, 1, 2, gtk.EXPAND|gtk.FILL, gtk.FILL, 5, 5)
self.list = ["DHCP", "SSH", "Telnet", "WWW (HTTP)", "Mail (SMTP)", "FTP"]
count = 0
for item in self.list:
self.incoming.append_row ((item, ""), gtk.FALSE)
if item == "DHCP":
self.incoming.set_row_data (count, (self.firewall.dhcp, item, item))
elif item == "SSH":
self.incoming.set_row_data (count, (self.firewall.ssh, item, item))
elif item == "Telnet":
self.incoming.set_row_data (count, (self.firewall.telnet, item, item))
elif item == "WWW (HTTP)":
self.incoming.set_row_data (count, (self.firewall.http, item, item))
elif item == "Mail (SMTP)":
self.incoming.set_row_data (count, (self.firewall.smtp, item, item))
elif item == "FTP":
self.incoming.set_row_data (count, (self.firewall.ftp, item, item))
count = count + 1
self.label3 = gtk.Label (_("Other ports:"))
self.ports = gtk.Entry ()
table.attach (self.label3, 0, 1, 2, 3, gtk.FILL, gtk.FILL, 5, 5)
table.attach (self.ports, 1, 2, 2, 3, gtk.EXPAND|gtk.FILL, gtk.FILL, 5, 5)
if self.firewall.enabled == 0:
self.sec_none_radio.set_active (gtk.TRUE)
elif self.firewall.policy == 0:
self.sec_high_radio.set_active (gtk.TRUE)
elif self.firewall.policy == 1:
self.sec_med_radio.set_active (gtk.TRUE)
if self.firewall.portlist != "":
self.ports.set_text (self.firewall.portlist)
if self.firewall.custom == 1:
self.custom_radio.set_active(gtk.TRUE)
else:
self.trusted.set_sensitive(gtk.FALSE)
self.incoming.set_sensitive(gtk.FALSE)
self.ports.set_sensitive(gtk.FALSE)
self.label1.set_sensitive(gtk.FALSE)
self.label2.set_sensitive(gtk.FALSE)
self.label3.set_sensitive(gtk.FALSE)
return box
|
