#!/usr/bin/env python3

# This file is part of Cockpit.
#
# Copyright (C) 2018 Red Hat, Inc.
#
# Cockpit is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Cockpit 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Cockpit; If not, see <http://www.gnu.org/licenses/>.

import parent  # noqa: F401
import time
from testlib import Error, nondestructive, skipDistroPackage, skipImage, todoPybridge, test_main, wait
from netlib import NetworkCase


def wait_unit_state(machine, unit, state):

    def active_state(unit):
        # HACK: don't use `systemctl is-active` here because of
        #   https://bugzilla.redhat.com/show_bug.cgi?id=1073481
        # Also, use `systemctl --value` once that exists everywhere
        line = machine.execute(f"systemctl show -p ActiveState {unit}")
        return line.strip().split("=")[1]

    wait(lambda: active_state(unit) == state, delay=0.2)


def get_active_rules(machine):
    active_zones = machine.execute("firewall-cmd --get-active-zones | grep '^[a-zA-Z]'").split()
    active_rules = []
    for zone in active_zones:
        active_rules += machine.execute(f"firewall-cmd --zone '{zone}' --list-services").split()
        ports = machine.execute(f"firewall-cmd --zone '{zone}' --list-ports").strip()
        if ports:
            active_rules += [ports]
    return active_rules


@skipImage("no firewalld", "fedora-coreos")
@nondestructive
@skipDistroPackage()
class TestFirewall(NetworkCase):
    def setUp(self):
        super().setUp()
        m = self.machine
        self.restore_dir("/etc/firewalld", "systemctl try-restart firewalld")
        m.execute("systemctl restart firewalld")
        self.btn_danger = "pf-m-danger"
        self.btn_primary = "pf-m-primary"
        self.default_zone = "Public zone"

        # Arch Linux image has no active zones by default
        if m.image == "arch":
            m.execute("firewall-cmd --zone 'public' --change-interface='eth0'; firewall-cmd --runtime-to-permanent")

    @todoPybridge()
    def testNetworkingPage(self):
        b = self.browser
        m = self.machine
        active_zones = len(m.execute("firewall-cmd --get-active-zones | grep '^[a-zA-Z]'").split())

        # Zones should be visible as unprivileged user
        self.login_and_go("/network", superuser=False)
        self.wait_onoff("#networking-firewall-summary", True)
        wait_unit_state(m, "firewalld", "active")
        b.wait_in_text("#networking-firewall-summary", f"{active_zones} active zone")
        m.execute("systemctl stop firewalld")
        b.relogin("/network", superuser=True)

        self.wait_onoff("#networking-firewall-summary", False)
        self.toggle_onoff("#networking-firewall-summary")
        self.wait_onoff("#networking-firewall-summary", True)
        wait_unit_state(m, "firewalld", "active")

        b.wait_in_text("#networking-firewall-summary", f"{active_zones} active zone")

        self.toggle_onoff("#networking-firewall-summary")
        self.wait_onoff("#networking-firewall-summary", False)
        wait_unit_state(m, "firewalld", "inactive")
        b.wait_in_text("#networking-firewall-summary", "0 active zones")

        # toggle the service from CLI, page should react
        try:
            m.execute("systemctl start firewalld")
            wait_unit_state(m, "firewalld", "active")
        except Error:
            print("====== firewalld.service =======")
            print(m.execute("systemctl status firewalld"))
            raise

        self.wait_onoff("#networking-firewall-summary", True)
        b.wait_in_text("#networking-firewall-summary", f"{active_zones} active zone")

        try:
            m.execute("systemctl stop firewalld")
            wait_unit_state(m, "firewalld", "inactive")
        except Error:
            print("====== firewalld.service =======")
            print(m.execute("systemctl status firewalld"))
            raise

        self.wait_onoff("#networking-firewall-summary", False)
        b.wait_in_text("#networking-firewall-summary", "0 active zones")

        b.click("#networking-firewall-link")
        b.enter_page("/network/firewall")

        b.click(".pf-c-breadcrumb li:first")

        b.enter_page("/network")

        self.allow_journal_messages(
            ".*The name org.fedoraproject.FirewallD1 was not provided by any .service files.*",
            ".*org.fedoraproject.FirewallD1: .*: GDBus.Error:org.freedesktop.DBus.Error.NoReply.*")

    # test missing "pkcheck" binary, in that case fallback to the admin check
    def testPkcheckMissing(self):
        b = self.browser
        m = self.machine

        # Path to the "pkcheck" PolicyKit utility
        pkcheck = m.execute("which pkcheck").strip()
        # "Hide" pkcheck
        m.execute(f"mount --bind /dev/null '{pkcheck}'")

        try:
            # Regular user is not allowed to change the firewall switch
            self.login_and_go("/network", superuser=False)
            b.wait_visible("#networking-firewall-switch:disabled")

            # Super user is allowed to change the firewall switch
            b.relogin("/network", superuser=True)
            b.wait_visible("#networking-firewall-switch:not([disabled])")
        finally:
            m.execute(f"umount '{pkcheck}'")

    @todoPybridge()
    def testFirewallPage(self):
        b = self.browser
        m = self.machine

        # Changed in #13686, remove all existing ports before testing
        for port in m.execute("firewall-cmd --zone 'public' --list-ports").split():
            m.execute(f"firewall-cmd --remove-port='{port}' --zone 'public'")
            m.execute(f"firewall-cmd --permanent --remove-port='{port}' --zone 'public'")

        # Zones should be visible as unprivileged user
        self.login_and_go("/network/firewall", superuser=False)
        self.wait_onoff("#firewall-heading-title-group", True)
        wait_unit_state(m, "firewalld", "active")
        # Wait until the default zone is listed
        b.wait_in_text("#zones-listing .zone-section[data-id='public']", self.default_zone)
        b.wait_not_present("#add-zone-button")
        # "Add services" button should not be present
        b.wait_not_present(".zone-section[data-id='public'] .add-services-button")
        m.execute("systemctl stop firewalld")
        b.relogin("/network/firewall", superuser=True)

        # "Add services" button should not be present
        b.wait_not_present(".add-services-button")

        self.wait_onoff("#firewall-heading-title-group", False)
        self.toggle_onoff("#firewall-heading-title-group")
        self.wait_onoff("#firewall-heading-title-group", True)
        wait_unit_state(m, "firewalld", "active")

        # Wait until the default zone is listed
        b.wait_in_text("#zones-listing .zone-section[data-id='public']", self.default_zone)

        # "Add services" button should be enabled
        b.wait_visible(".zone-section[data-id='public'] .add-services-button:enabled")

        # ensure that pop3 is not enabled (shouldn't be on any of our images),
        # so that we can use it for testing
        b.wait_not_present(".zone-section[data-id='public'] tr[data-row-id='pop3']")

        m.execute("firewall-cmd --add-service=pop3")
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='pop3']")

        # Check that all services are shown.  This only works reliably since #12806
        active_rules = get_active_rules(m)
        b.wait_js_func("((sel, count) => ph_count(sel) == count)", ".zone-section table.ct-table tbody", len(active_rules))

        b.click(".zone-section[data-id='public'] tr[data-row-id='pop3'] #expand-togglepop3")
        b.wait_in_text(".zone-section[data-id='public'] tbody.pf-m-expanded tr.pf-c-table__expandable-row", "Post Office Protocol")

        b.click(".zone-section[data-id='public'] tr[data-row-id='pop3'] button.pf-c-dropdown__toggle")
        b.click(".zone-section[data-id='public'] a.pf-m-danger.pf-c-dropdown__menu-item")
        b.wait_not_present(".zone-section[data-id='public'] tr[data-row-id='pop3']")
        self.assertNotIn('pop3', m.execute("firewall-cmd --list-services").split())

        # Test that service without name is shown properly
        m.execute("firewall-cmd --permanent --new-service=empty; firewall-cmd --reload; firewall-cmd --add-service=empty")
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='empty']")

        m.execute("firewall-cmd --add-port=9998/udp --add-port=9999/udp --add-port=6666/tcp")
        b.wait_in_text(".zone-section[data-id='public'] tr[data-row-id='public-ports'] > td:nth-of-type(3)", "6666")
        b.wait_in_text(".zone-section[data-id='public'] tr[data-row-id='public-ports'] > td:nth-of-type(4)", "9998, 9999")
        m.execute("firewall-cmd --remove-port=9998/udp --remove-port=9999/udp --remove-port=6666/tcp")
        b.wait_not_present(".zone-section[data-id='public'] tr[data-row-id='public-ports']")

        # switch service off again
        self.toggle_onoff("#firewall-heading-title-group")
        self.wait_onoff("#firewall-heading-title-group", False)
        wait_unit_state(m, "firewalld", "inactive")
        # "Add services" button should be hidden again
        b.wait_not_present(".zone-section[data-id='public'] .add-services-button")

    def testAddServices(self):
        b = self.browser
        m = self.machine

        self.login_and_go("/network/firewall")
        b.wait_in_text("#zones-listing .zone-section[data-id='public']", self.default_zone)

        # add a service to the runtime configuration via the cli, after all the
        # operations it should still be there, indicating no reload took place
        m.execute("firewall-cmd --add-service=http")
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='http']")

        b.assert_pixels("#zones-listing .zone-section[data-id='public']", "firewall-default-zone-card",
                        # HACK: medium layout has unstable horizontal width
                        skip_layouts=["medium"])

        # click on the "Add services" button
        b.click(".zone-section[data-id='public'] .add-services-button")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-pop3")

        # filter for pop3
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-imap")
        b.set_input_text("#filter-services-input", "pop")
        b.wait_not_present(".pf-c-modal-box .service-list #firewall-service-imap")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-pop3")
        self.assertIn("TCP: 110", b.text(".pf-c-modal-box .service-list li:first-child .service-ports.tcp"))
        b.wait_not_present(".pf-c-modal-box .service-list li:first-child .service-ports.udp")
        # clear filter
        b.set_input_text("#filter-services-input", "")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-imap")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-pop3")

        # filter for port 110
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-imap")
        b.set_input_text("#filter-services-input", "110")
        b.wait_not_present(".pf-c-modal-box .service-list #firewall-service-imap")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-pop3")
        self.assertIn("TCP: 110", b.text(".pf-c-modal-box .service-list li:first-child .service-ports.tcp"))
        b.wait_not_present(".pf-c-modal-box .service-list li:first-child .service-ports.udp")
        # clear filter
        b.set_input_text("#filter-services-input", "")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-imap")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-pop3")

        # HACK: the dialog needs some time to set up after resizing
        b.assert_pixels(".pf-c-modal-box", "firewall-add-services-to-zone-modal", wait_delay=3)

        # don't select anything in the dialog
        b.click(f"#add-services-dialog footer .{self.btn_primary}")
        b.wait_not_present(".pf-c-modal-box")

        def addService(zone, service):
            b.click(f".zone-section[data-id='{zone}'] .add-services-button")
            b.click(f"#add-services-dialog .service-list #firewall-service-{service}")
            b.click(f"#add-services-dialog footer .{self.btn_primary}")
            b.wait_not_present(".pf-c-modal-box")
            b.wait_visible(f".zone-section[data-id='{zone}'] tr[data-row-id='{service}']")
            self.assertIn(service, m.execute(f"firewall-cmd --zone={zone} --list-services"))

        # now add pop3
        addService('public', 'pop3')
        addService('public', 'freeipa-4')
        b.click(".zone-section[data-id='public'] tr[data-row-id='freeipa-4'] #expand-togglefreeipa-4")
        b.wait_visible(".zone-section[data-id='public'] tbody.pf-m-expanded .pf-c-table__expandable-row:contains(Included Services)")
        b.click(".zone-section[data-id='public'] tr[data-row-id='freeipa-4'] #expand-togglefreeipa-4")

        # pop3 should now not appear any more in Add Services dialog
        b.click(".zone-section[data-id='public'] .add-services-button")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-imap")
        b.wait_not_present(".pf-c-modal-box .service-list #firewall-service-pop3")
        b.click("#add-services-dialog footer .btn-cancel")
        b.wait_not_present(".pf-c-modal-box")

        # should still be here
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='http']")

        # Service without name should appear in the dialog
        m.execute("firewall-cmd --permanent --new-service=empty; firewall-cmd --reload")
        b.click(".zone-section[data-id='public'] .add-services-button")
        b.wait_visible(".pf-c-modal-box .service-list #firewall-service-empty")
        b.click("#add-services-dialog footer .btn-cancel")
        b.wait_not_present(".pf-c-modal-box")

        # remove all services
        services = set(m.execute("firewall-cmd --list-services").strip().split(" "))
        # some images come with an extra preconfigured libvirt zone so remove all
        # the service which belong to both libvirt and public (and thus
        # requiring checkboxes to be clicked), then remove all the services
        # belonging either libvirt or public
        for service in services:
            b.click(f".zone-section[data-id='public'] tr[data-row-id='{service}'] button.pf-c-dropdown__toggle")
            b.click(".zone-section[data-id='public'] a.pf-m-danger.pf-c-dropdown__menu-item")
            # removing cockpit services requires confirmation
            if service == "cockpit":
                b.click(f"#delete-confirmation-dialog button.{self.btn_danger}")
            b.wait_not_present(f".zone-section[data-id='public'] tr[data-row-id='{service}']")
        self.assertEqual(m.execute("firewall-cmd --list-services").strip(), "")

        # Test that we show 'Additional ports' even when no service is present
        m.execute("firewall-cmd --add-port=9998/tcp --zone public")
        b.wait_visible(".zone-section[data-id='public'] td:contains('Additional ports') + td:contains('9998')")

        # test error handling
        m.execute("firewall-cmd --add-service=pop3")
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='pop3']")
        b.wait_visible(".zone-section[data-id='public'] td:contains('Additional ports') + td:contains('9998')")
        # remove service via cli and cockpit
        m.execute("firewall-cmd --remove-service=pop3")
        b.click(".zone-section[data-id='public'] tr[data-row-id='pop3'] button.pf-c-dropdown__toggle")
        b.click(".zone-section[data-id='public'] a.pf-m-danger.pf-c-dropdown__menu-item")
        b.wait_not_present(".zone-section[data-id='public'] tr[data-row-id='pop3']")

    def testAddCustomServices(self):
        b = self.browser
        m = self.machine

        self.login_and_go("/network/firewall")
        b.wait_in_text("#zones-listing .zone-section[data-id='public']", self.default_zone)

        # add a service to the runtime configuration via the cli, after all the
        # operations it should be removed, indicating a reload took place
        m.execute("firewall-cmd --add-service=http")
        b.wait_visible("tr[data-row-id='http']")

        def open_dialog():
            b.click(".zone-section[data-id='public'] .add-services-button")
            b.wait_visible("#add-services-dialog input[value='ports']:enabled")
            b.click("#add-services-dialog input[value='ports']")
            b.wait_visible("#tcp-ports")
            b.wait_visible("#tcp-ports")

        def set_field(sel, val, expected):
            b.set_input_text(sel, val)
            b.wait_val("#service-name", expected)

        def check_error(text):
            b.wait_visible(f".pf-c-form__helper-text.pf-m-error:contains({text})")

        def save(identifier, tcp, udp, desc="", submit_text="Add ports"):
            b.click(f"button:contains({submit_text})")
            b.wait_not_present("#add-services-dialog")
            # expand-togglecustom--80-82-echo-83-123-snmp
            print(identifier)
            # expand-togglefreeipa-4
            line_sel = f".zone-section[data-id='public'] tr[data-row-id='{identifier}']"
            b.wait_visible(line_sel)
            b.wait_in_text(line_sel, "".join([identifier, tcp, udp]))
            if desc:
                # Click expand button
                b.click(line_sel + f" #expand-toggle{identifier}")
                b.wait_text(line_sel + " + tr", desc)

            out = m.execute("firewall-cmd --zone public --list-services")
            self.assertIn(identifier, out)

        open_dialog()
        set_field("#tcp-ports", "80", "custom--http")
        set_field("#tcp-ports", "", "")
        set_field("#tcp-ports", "80,7", "custom--http-echo")
        set_field("#udp-ports", "123", "custom--http-echo-ntp")
        set_field("#udp-ports", "123,   50000", "custom--http-echo-ntp-50000")
        set_field("#tcp-ports", "", "custom--ntp-50000")
        set_field("#tcp-ports", "https", "custom--https-ntp-50000")
        save("custom--https-ntp-50000", "443", "123, 50000")

        open_dialog()
        set_field("#tcp-ports", "80-82", "custom--80-82")
        set_field("#tcp-ports", "80-82, echo", "custom--80-82-echo")
        set_field("#udp-ports", "ntp, snmp", "custom--80-82-echo-ntp-snmp")
        set_field("#udp-ports", "83-ntp", "custom--80-82-echo-83-123")
        set_field("#udp-ports", "83-ntp, snmp", "custom--80-82-echo-83-123-snmp")
        b.set_input_text("#service-description", "custom snmp firewall rule")
        # Test that the service name field is really optional
        b.set_input_text("#service-name", "")
        save("custom--80-82-echo-83-123-snmp", "80-82, 7", "83-123, 161", "custom snmp firewall rule")
        out = m.execute("firewall-cmd --info-service custom--80-82-echo-83-123-snmp")
        self.assertIn("ports: 80-82/tcp 7/tcp 83-123/udp 161/udp", out)

        open_dialog()
        set_field("#tcp-ports", "80", "custom--http")
        b.set_input_text("#service-name", "I-am-persistent")
        b.set_input_text("#tcp-ports", "7")
        time.sleep(5)  # We need to validate that the service name did not change
        b.wait_val("#service-name", "I-am-persistent")
        save("I-am-persistent", "7", "")

        open_dialog()
        set_field("#tcp-ports", "500000", "")
        check_error("Invalid port number")
        set_field("#tcp-ports", "-1", "")
        check_error("Invalid port number")
        set_field("#tcp-ports", "8a", "")
        check_error("Unknown service name")
        set_field("#tcp-ports", "foobar", "")
        check_error("Unknown service name")
        set_field("#tcp-ports", "80-80", "")
        check_error("Range must be strictly ordered")
        set_field("#tcp-ports", "80-79", "")
        check_error("Range must be strictly ordered")
        set_field("#tcp-ports", "https-http", "")
        check_error("Range must be strictly ordered")
        set_field("#tcp-ports", "80-90-", "")
        check_error("Invalid range")
        set_field("#tcp-ports", "80-90-100", "")
        check_error("Invalid range")
        b.click("#add-services-dialog button.btn-cancel")

        # test error handling
        # attempt to create custom service which already exists
        m.execute("firewall-cmd --permanent --new-service=custom--19834")
        m.execute("firewall-cmd --permanent --service=custom--19834 --add-port=19834/udp")
        open_dialog()
        set_field("#udp-ports", "19834", "custom--19834")
        b.click(f"#add-services-dialog .{self.btn_primary}")
        b.wait_in_text("#add-services-dialog div.pf-m-danger", "org.fedoraproject.FirewallD1.Exception: NAME_CONFLICT: new_service(): 'custom--19834'")
        b.click("#add-services-dialog button.btn-cancel")

        # should have been removed in the reload
        b.wait_not_present("tr[data-row-id='http']")

        b.click("tr[data-row-id='custom--80-82-echo-83-123-snmp'] button[aria-label=Details]")
        b.click("tr[data-row-id='custom--80-82-echo-83-123-snmp'] button[aria-label=Actions]")
        b.click("a:contains(Edit)")
        b.wait_val("#tcp-ports", "80-82, 7")
        b.wait_val("#udp-ports", "83-123, 161")
        b.wait_val("#service-name", "custom--80-82-echo-83-123-snmp")
        b.wait_val("#service-description", "custom snmp firewall rule")
        b.set_input_text("#tcp-ports", "80-82, 8")
        b.set_input_text("#service-description", "edited snmp firewall rule")
        b.wait_val("#service-name", "custom--80-82-echo-83-123-snmp")
        save("custom--80-82-echo-83-123-snmp", "80-82, 8", "83-123, 161", "edited snmp firewall rule", 'Edit service')
        out = m.execute("firewall-cmd --info-service custom--80-82-echo-83-123-snmp")
        self.assertIn("ports: 80-82/tcp 8/tcp 83-123/udp 161/udp", out)

    def testMultipleZones(self):
        b = self.browser
        m = self.machine

        # create unused interface for adding a new zone
        # FIXME: Firewall page does not pick this up once it's already open
        home_iface = "ethome"
        self.add_veth(home_iface)

        def addServiceToZone(service, zone):
            b.click(f".zone-section[data-id='{zone}'] .add-services-button")
            b.click(f"#add-services-dialog .service-list #firewall-service-{service}")
            b.click(f"#add-services-dialog footer .{self.btn_primary}")
            b.wait_not_present(".pf-c-modal-box")
            b.wait_visible(f".zone-section[data-id='{zone}'] tr[data-row-id='{service}']")
            self.assertIn(service, m.execute(f"firewall-cmd --zone={zone} --list-services"))

        def addZone(zone, interfaces=[], sources=None, error=None):
            b.click("#add-zone-button")
            b.wait_visible("#add-zone-dialog")
            b.wait_visible(f"#add-zone-dialog footer button.{self.btn_primary}:disabled")
            b.click(f"#add-zone-dialog .add-zone-zones-firewalld input[value='{zone}']")

            for i in interfaces:
                b.click(f"#add-zone-dialog input[value='{i}']")
            if sources:
                b.click("#add-zone-dialog input[value='ip-range']")
                b.set_input_text("#add-zone-dialog #add-zone-ip", sources)

            b.click(f"#add-zone-dialog footer button.{self.btn_primary}:enabled")

            if error:
                b.wait_in_text("#add-zone-dialog div.pf-m-danger", error)
                b.click("#add-zone-dialog footer button.btn-cancel")
                b.wait_not_present("#add-zone-dialog")
                return

            b.wait_not_present("#add-zone-dialog")
            for source in sources.split(",") if sources else []:
                b.wait_in_text(f"#zones-listing .zone-section[data-id='{zone}']", source)
            for i in interfaces:
                b.wait_in_text(f"#zones-listing .zone-section[data-id='{zone}']", i)
            b.wait_visible(f"#zones-listing .zone-section[data-id='{zone}']")
            b.wait_visible(f"#zones-listing .zone-section[data-id='{zone}'] tr[data-row-id='cockpit']")

        def removeZone(zone):
            b.click(f".zone-section[data-id='{zone}'] #dropdown-{zone}")
            b.click(f".zone-section[data-id='{zone}'] a.pf-m-danger.pf-c-dropdown__menu-item")
            b.click(f"#delete-confirmation-dialog button.{self.btn_danger}")
            b.wait_not_present(f".zone-section[data-id='{zone}']")

        self.login_and_go("/network/firewall")
        b.wait_in_text("#zones-listing .zone-section[data-id='public']", self.default_zone)

        # add predefined work zone
        addZone("work", sources="192.168.1.0/24")

        addServiceToZone("pop3", "work")
        b.wait_visible(".zone-section[data-id='work'] tr[data-row-id='pop3']")
        self.assertNotIn(self.default_zone.split(" ")[0], b.text("tr[data-row-id='pop3']"))
        addServiceToZone("pop3", "public")
        b.wait_visible(".zone-section[data-id='public'] tr[data-row-id='pop3']")

        # Remove the service from public zone
        b.click(".zone-section[data-id='public'] tr[data-row-id='pop3'] #expand-togglepop3")
        b.click(".zone-section[data-id='public'] tr[data-row-id='pop3'] button.pf-c-dropdown__toggle")
        b.click(".zone-section[data-id='public'] a.pf-m-danger.pf-c-dropdown__menu-item")
        b.wait_not_present(".zone-section[data-id='public'] tr[data-row-id='pop3']")
        b.wait_visible(".zone-section[data-id='work'] tr[data-row-id='pop3']")

        # Remove the service from the work zone
        b.click(".zone-section[data-id='work'] tr[data-row-id='pop3'] button.pf-c-dropdown__toggle")
        b.click(".zone-section[data-id='work'] a.pf-m-danger.pf-c-dropdown__menu-item")
        b.wait_not_present(".zone-section[data-id='work'] tr[data-row-id='pop3']")

        # remove predefined work zone
        removeZone("work")
        # add zone with previously unused interface
        addZone("home", interfaces=[home_iface])
        # Interfaces which already belong to an active zone shouldn't show up in
        # the Add Zone dialog anymore
        b.click("#add-zone-button")
        b.wait_visible("#add-zone-dialog")
        b.wait_not_present(f"#add-zone-body input[value='{home_iface}']")
        b.click("#add-zone-dialog footer button.btn-cancel")
        b.wait_not_present("#add-zone-dialog")

        addServiceToZone("pop3", "home")
        removeZone("home")

        addZone("work", sources="totally invalid address", error="org.fedoraproject.FirewallD1.Exception: INVALID_ADDR: totally invalid address")


if __name__ == '__main__':
    test_main()
