remove configureFirewall function, the call to it, and related tests

Signed-off-by: Adam Warner <me@adamwarner.co.uk>
pull/3283/head
Adam Warner 4 years ago
parent 471006676c
commit a37dba2c81
No known key found for this signature in database
GPG Key ID: 872950F3ECF2B173

@ -1783,45 +1783,6 @@ create_pihole_user() {
fi
}
# Allow HTTP and DNS traffic
configureFirewall() {
printf "\\n"
# If a firewall is running,
if firewall-cmd --state &> /dev/null; then
# ask if the user wants to install Pi-hole's default firewall rules
whiptail --title "Firewall in use" --yesno "We have detected a running firewall\\n\\nPi-hole currently requires HTTP and DNS port access.\\n\\n\\n\\nInstall Pi-hole default firewall rules?" "${r}" "${c}" || \
{ printf " %b Not installing firewall rulesets.\\n" "${INFO}"; return 0; }
printf " %b Configuring FirewallD for httpd and pihole-FTL\\n" "${TICK}"
# Allow HTTP and DNS traffic
firewall-cmd --permanent --add-service=http --add-service=dns
# Reload the firewall to apply these changes
firewall-cmd --reload
return 0
# Check for proper kernel modules to prevent failure
elif modinfo ip_tables &> /dev/null && is_command iptables ; then
# If chain Policy is not ACCEPT or last Rule is not ACCEPT
# then check and insert our Rules above the DROP/REJECT Rule.
if iptables -S INPUT | head -n1 | grep -qv '^-P.*ACCEPT$' || iptables -S INPUT | tail -n1 | grep -qv '^-\(A\|P\).*ACCEPT$'; then
whiptail --title "Firewall in use" --yesno "We have detected a running firewall\\n\\nPi-hole currently requires HTTP and DNS port access.\\n\\n\\n\\nInstall Pi-hole default firewall rules?" "${r}" "${c}" || \
{ printf " %b Not installing firewall rulesets.\\n" "${INFO}"; return 0; }
printf " %b Installing new IPTables firewall rulesets\\n" "${TICK}"
# Check chain first, otherwise a new rule will duplicate old ones
iptables -C INPUT -p tcp -m tcp --dport 80 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 80 -j ACCEPT
iptables -C INPUT -p tcp -m tcp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 53 -j ACCEPT
iptables -C INPUT -p udp -m udp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p udp -m udp --dport 53 -j ACCEPT
iptables -C INPUT -p tcp -m tcp --dport 4711:4720 -i lo -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 4711:4720 -i lo -j ACCEPT
return 0
fi
# Otherwise,
else
# no firewall is running
printf " %b No active firewall detected.. skipping firewall configuration\\n" "${INFO}"
# so just exit
return 0
fi
printf " %b Skipping firewall configuration\\n" "${INFO}"
}
#
finalExports() {
# If the Web interface is not set to be installed,
@ -1972,10 +1933,6 @@ installPihole() {
# Check if dnsmasq is present. If so, disable it and back up any possible
# config file
disable_dnsmasq
# Configure the firewall
if [[ "${useUpdateVars}" == false ]]; then
configureFirewall
fi
# install a man page entry for pihole
install_manpage

@ -92,168 +92,6 @@ def test_setupVars_saved_to_file(Pihole):
assert "{}={}".format(k, v) in output
def test_configureFirewall_firewalld_running_no_errors(Pihole):
'''
confirms firewalld rules are applied when firewallD is running
'''
# firewallD returns 'running' as status
mock_command('firewall-cmd', {'*': ('running', 0)}, Pihole)
# Whiptail dialog returns Ok for user prompt
mock_command('whiptail', {'*': ('', 0)}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'Configuring FirewallD for httpd and pihole-FTL'
assert expected_stdout in configureFirewall.stdout
firewall_calls = Pihole.run('cat /var/log/firewall-cmd').stdout
assert 'firewall-cmd --state' in firewall_calls
assert ('firewall-cmd '
'--permanent '
'--add-service=http '
'--add-service=dns') in firewall_calls
assert 'firewall-cmd --reload' in firewall_calls
def test_configureFirewall_firewalld_disabled_no_errors(Pihole):
'''
confirms firewalld rules are not applied when firewallD is not running
'''
# firewallD returns non-running status
mock_command('firewall-cmd', {'*': ('not running', '1')}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = ('No active firewall detected.. '
'skipping firewall configuration')
assert expected_stdout in configureFirewall.stdout
def test_configureFirewall_firewalld_enabled_declined_no_errors(Pihole):
'''
confirms firewalld rules are not applied when firewallD is running, user
declines ruleset
'''
# firewallD returns running status
mock_command('firewall-cmd', {'*': ('running', 0)}, Pihole)
# Whiptail dialog returns Cancel for user prompt
mock_command('whiptail', {'*': ('', 1)}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'Not installing firewall rulesets.'
assert expected_stdout in configureFirewall.stdout
def test_configureFirewall_no_firewall(Pihole):
''' confirms firewall skipped no daemon is running '''
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'No active firewall detected'
assert expected_stdout in configureFirewall.stdout
def test_configureFirewall_IPTables_enabled_declined_no_errors(Pihole):
'''
confirms IPTables rules are not applied when IPTables is running, user
declines ruleset
'''
# iptables command exists
mock_command('iptables', {'*': ('', '0')}, Pihole)
# modinfo returns always true (ip_tables module check)
mock_command('modinfo', {'*': ('', '0')}, Pihole)
# Whiptail dialog returns Cancel for user prompt
mock_command('whiptail', {'*': ('', '1')}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'Not installing firewall rulesets.'
assert expected_stdout in configureFirewall.stdout
def test_configureFirewall_IPTables_enabled_rules_exist_no_errors(Pihole):
'''
confirms IPTables rules are not applied when IPTables is running and rules
exist
'''
# iptables command exists and returns 0 on calls
# (should return 0 on iptables -C)
mock_command('iptables', {'-S': ('-P INPUT DENY', '0')}, Pihole)
# modinfo returns always true (ip_tables module check)
mock_command('modinfo', {'*': ('', '0')}, Pihole)
# Whiptail dialog returns Cancel for user prompt
mock_command('whiptail', {'*': ('', '0')}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'Installing new IPTables firewall rulesets'
assert expected_stdout in configureFirewall.stdout
firewall_calls = Pihole.run('cat /var/log/iptables').stdout
# General call type occurances
assert len(re.findall(r'iptables -S', firewall_calls)) == 1
assert len(re.findall(r'iptables -C', firewall_calls)) == 4
assert len(re.findall(r'iptables -I', firewall_calls)) == 0
# Specific port call occurances
assert len(re.findall(r'tcp --dport 80', firewall_calls)) == 1
assert len(re.findall(r'tcp --dport 53', firewall_calls)) == 1
assert len(re.findall(r'udp --dport 53', firewall_calls)) == 1
assert len(re.findall(r'tcp --dport 4711:4720', firewall_calls)) == 1
def test_configureFirewall_IPTables_enabled_not_exist_no_errors(Pihole):
'''
confirms IPTables rules are applied when IPTables is running and rules do
not exist
'''
# iptables command and returns 0 on calls (should return 1 on iptables -C)
mock_command(
'iptables',
{
'-S': (
'-P INPUT DENY',
'0'
),
'-C': (
'',
1
),
'-I': (
'',
0
)
},
Pihole
)
# modinfo returns always true (ip_tables module check)
mock_command('modinfo', {'*': ('', '0')}, Pihole)
# Whiptail dialog returns Cancel for user prompt
mock_command('whiptail', {'*': ('', '0')}, Pihole)
configureFirewall = Pihole.run('''
source /opt/pihole/basic-install.sh
configureFirewall
''')
expected_stdout = 'Installing new IPTables firewall rulesets'
assert expected_stdout in configureFirewall.stdout
firewall_calls = Pihole.run('cat /var/log/iptables').stdout
# General call type occurances
assert len(re.findall(r'iptables -S', firewall_calls)) == 1
assert len(re.findall(r'iptables -C', firewall_calls)) == 4
assert len(re.findall(r'iptables -I', firewall_calls)) == 4
# Specific port call occurances
assert len(re.findall(r'tcp --dport 80', firewall_calls)) == 2
assert len(re.findall(r'tcp --dport 53', firewall_calls)) == 2
assert len(re.findall(r'udp --dport 53', firewall_calls)) == 2
assert len(re.findall(r'tcp --dport 4711:4720', firewall_calls)) == 2
def test_selinux_not_detected(Pihole):
'''
confirms installer continues when SELinux configuration file does not exist

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