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|
#
# firewall_text.py: text mode firewall setup
#
# Bill Nottingham <notting@redhat.com>
# Jeremy Katz <katzj@redhat.com>
#
# Copyright 2001-2004 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.
#
from snack import *
from constants_text import *
from rhpl.translate import _
from rhpl.log import log
from flags import flags
class FirewallWindow:
def __call__(self, screen, intf, network, firewall, security):
self.intf = intf
bb = ButtonBar (screen, (TEXT_OK_BUTTON, (_("Customize"), "customize"), TEXT_BACK_BUTTON))
toplevel = GridFormHelp (screen, _("Firewall"),
"securitylevel", 1, 5)
text = _("A firewall can help prevent unauthorized access to your "
"computer from the outside world. Would you like to enable "
"a firewall?")
toplevel.add (TextboxReflowed(50, text), 0, 0, (0, 0, 0, 1))
toplevel.add (bb, 0, 4, (0, 0, 0, 0), growx = 1)
smallGrid = Grid(2,1)
bigGrid = Grid(2,15)
typeGrid = Grid(2,1)
self.enabled = SingleRadioButton(_("Enable firewall"), None, firewall.enabled)
self.enabled.setCallback(self.radiocb, (firewall, self.enabled))
typeGrid.setField (self.enabled, 0, 0, (0, 0, 1, 0), anchorLeft = 1)
self.disabled = SingleRadioButton(_("No firewall"), self.enabled, not firewall.enabled)
self.disabled.setCallback(self.radiocb, (firewall, self.disabled))
typeGrid.setField (self.disabled, 1, 0 , (0, 0, 1, 0), anchorRight = 1)
smallGrid.setField (typeGrid, 0, 0, (1, 0, 0, 1), anchorLeft = 1, growx = 1)
currentRow = 1
bigGrid.setField (Label(_("Allow incoming:")), 0, currentRow, (0, 0, 0, 0),
anchorTop = 1)
self.portGrid = Grid(1, len(firewall.services))
# list of Service, Checkbox tuples
self.portboxes = []
count = 0
for serv in firewall.services:
s = Checkbox(_(serv.get_name()), serv.get_enabled())
self.portboxes.append((serv, s))
self.portGrid.setField (s, 0, count, (0, 0, 1, 0), anchorLeft = 1)
count += 1
bigGrid.setField (self.portGrid, 1, currentRow, (1, 0, 0, 0), anchorLeft = 1)
bigGrid.setField (Label(""), 0, currentRow + 1, (0, 0, 0, 1), anchorLeft = 1)
toplevel.add(smallGrid, 0, 1, (0, 0, 0, 0), anchorLeft = 1)
if self.disabled.selected():
self.radiocb((firewall, self.disabled))
while 1:
result = toplevel.run ()
rc = bb.buttonPressed (result)
if rc == TEXT_BACK_CHECK:
screen.popWindow()
return INSTALL_BACK
if rc == "customize":
if self.disabled.selected():
ButtonChoiceWindow(screen, _("Invalid Choice"),
_("You cannot customize a disabled firewall."),
buttons = [ TEXT_OK_STR ], width = 40)
else:
popbb = ButtonBar (screen, (TEXT_OK_BUTTON,))
poplevel = GridFormHelp (screen, _("Customize Firewall Configuration"),
"securitycustom", 1, 5)
text = _("With a firewall, you may wish to allow access "
"to specific services on your computer from "
"others. Allow access to which services?")
poplevel.add (TextboxReflowed(65, text), 0, 0, (0, 0, 0, 1))
poplevel.add (popbb, 0, 4, (0, 0, 0, 0), growx = 1)
poplevel.add (bigGrid, 0, 1, (0, 0, 0, 0), anchorLeft = 1)
result2 = poplevel.run()
rc2 = popbb.buttonPressed(result2)
if rc2 == TEXT_OK_CHECK or result2 == TEXT_F12_CHECK:
screen.popWindow()
if rc == TEXT_OK_CHECK or result == TEXT_F12_CHECK:
if self.disabled.selected():
rc2 = self.intf.messageWindow(_("Warning - No Firewall"),
_("If this system is attached directly to the Internet or "
"is on a large public network, it is recommended that a "
"firewall be configured to help prevent unauthorized "
"access. However, you have selected not to "
"configure a firewall. Choose \"Proceed\" to continue "
"without a firewall."),
type="custom", custom_icon="warning",
custom_buttons=[_("_Back"), _("_Proceed")])
if rc2 == 0:
continue
else:
break
else:
break
screen.popWindow()
for (s, cb) in self.portboxes:
s.set_enabled(cb.selected())
if self.disabled.selected():
firewall.enabled = 0
else:
firewall.enabled = 1
return INSTALL_OK
def radiocb(self, args):
(firewall, widget) = args
if widget == self.disabled:
firewall.enabled = 0
elif widget == self.enabled:
firewall.enabled = 1
else:
raise RuntimeError, "never reached"
class SELinuxWindow:
def __call__(self, screen, intf, network, firewall, security):
if flags.selinux == 0:
log("selinux disabled, not showing selinux config screen")
return INSTALL_NOOP
self.intf = intf
toplevel = GridFormHelp (screen, _("Security Enhanced Linux"),
"selinux", 1, 5)
text = _("Security Enhanced Linux (SELinux) "
"provides finer-grained "
"security controls than those available "
"in a traditional Linux system. It can "
"be set up in a disabled state, a state "
"which only warns about things which would "
"be denied, or a fully active state.")
toplevel.add(TextboxReflowed(50, text), 0, 0, (0,0,0,1))
grid = Grid(3, 1)
disable = SingleRadioButton(_("Disabled"), None, (security.getSELinux() == 0))
toplevel.add(disable, 0, 1, (0,0,0,0))
warn = SingleRadioButton(_("Warn"), disable, (security.getSELinux() == 1))
toplevel.add(warn, 0, 2, (0,0,0,0))
enable = SingleRadioButton(_("Active"), warn, (security.getSELinux() == 2))
toplevel.add(enable, 0, 3, (0,0,0,1))
bb = ButtonBar (screen, (TEXT_OK_BUTTON, TEXT_BACK_BUTTON))
toplevel.add(bb, 0, 4, (0, 0, 0, 0), growx = 1)
while 1:
result = toplevel.run()
rc = bb.buttonPressed (result)
if rc == TEXT_BACK_CHECK:
screen.popWindow()
return INSTALL_BACK
break
if enable.selected():
security.setSELinux(2)
elif warn.selected():
security.setSELinux(1)
elif disable.selected():
security.setSELinux(0)
screen.popWindow()
return INSTALL_OK
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