traefik/whitelist/ip_test.go

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package whitelist
import (
"net"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
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func TestNew(t *testing.T) {
cases := []struct {
desc string
whitelistStrings []string
expectedWhitelists []*net.IPNet
errMessage string
}{
{
desc: "nil whitelist",
whitelistStrings: nil,
expectedWhitelists: nil,
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errMessage: "no whiteListsNet provided",
}, {
desc: "empty whitelist",
whitelistStrings: []string{},
expectedWhitelists: nil,
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errMessage: "no whiteListsNet provided",
}, {
desc: "whitelist containing empty string",
whitelistStrings: []string{
"1.2.3.4/24",
"",
"fe80::/16",
},
expectedWhitelists: nil,
errMessage: "parsing CIDR whitelist <nil>: invalid CIDR address: ",
}, {
desc: "whitelist containing only an empty string",
whitelistStrings: []string{
"",
},
expectedWhitelists: nil,
errMessage: "parsing CIDR whitelist <nil>: invalid CIDR address: ",
}, {
desc: "whitelist containing an invalid string",
whitelistStrings: []string{
"foo",
},
expectedWhitelists: nil,
errMessage: "parsing CIDR whitelist <nil>: invalid CIDR address: foo",
}, {
desc: "IPv4 & IPv6 whitelist",
whitelistStrings: []string{
"1.2.3.4/24",
"fe80::/16",
},
expectedWhitelists: []*net.IPNet{
{IP: net.IPv4(1, 2, 3, 0).To4(), Mask: net.IPv4Mask(255, 255, 255, 0)},
{IP: net.ParseIP("fe80::"), Mask: net.IPMask(net.ParseIP("ffff::"))},
},
errMessage: "",
}, {
desc: "IPv4 only",
whitelistStrings: []string{
"127.0.0.1/8",
},
expectedWhitelists: []*net.IPNet{
{IP: net.IPv4(127, 0, 0, 0).To4(), Mask: net.IPv4Mask(255, 0, 0, 0)},
},
errMessage: "",
},
}
for _, test := range cases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
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whitelister, err := NewIP(test.whitelistStrings)
if test.errMessage != "" {
require.EqualError(t, err, test.errMessage)
} else {
require.NoError(t, err)
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for index, actual := range whitelister.whiteListsNet {
expected := test.expectedWhitelists[index]
assert.Equal(t, expected.IP, actual.IP)
assert.Equal(t, expected.Mask.String(), actual.Mask.String())
}
}
})
}
}
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func TestIsAllowed(t *testing.T) {
cases := []struct {
desc string
whitelistStrings []string
passIPs []string
rejectIPs []string
}{
{
desc: "IPv4",
whitelistStrings: []string{
"1.2.3.4/24",
},
passIPs: []string{
"1.2.3.1",
"1.2.3.32",
"1.2.3.156",
"1.2.3.255",
},
rejectIPs: []string{
"1.2.16.1",
"1.2.32.1",
"127.0.0.1",
"8.8.8.8",
},
},
{
desc: "IPv4 single IP",
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whitelistStrings: []string{
"8.8.8.8",
},
passIPs: []string{
"8.8.8.8",
},
rejectIPs: []string{
"8.8.8.7",
"8.8.8.9",
"8.8.8.0",
"8.8.8.255",
"4.4.4.4",
"127.0.0.1",
},
},
{
desc: "IPv4 Net single IP",
whitelistStrings: []string{
"8.8.8.8/32",
},
passIPs: []string{
"8.8.8.8",
},
rejectIPs: []string{
"8.8.8.7",
"8.8.8.9",
"8.8.8.0",
"8.8.8.255",
"4.4.4.4",
"127.0.0.1",
},
},
{
desc: "multiple IPv4",
whitelistStrings: []string{
"1.2.3.4/24",
"8.8.8.8/8",
},
passIPs: []string{
"1.2.3.1",
"1.2.3.32",
"1.2.3.156",
"1.2.3.255",
"8.8.4.4",
"8.0.0.1",
"8.32.42.128",
"8.255.255.255",
},
rejectIPs: []string{
"1.2.16.1",
"1.2.32.1",
"127.0.0.1",
"4.4.4.4",
"4.8.8.8",
},
},
{
desc: "IPv6",
whitelistStrings: []string{
"2a03:4000:6:d080::/64",
},
passIPs: []string{
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"2a03:4000:6:d080::",
"2a03:4000:6:d080::1",
"2a03:4000:6:d080:dead:beef:ffff:ffff",
"2a03:4000:6:d080::42",
},
rejectIPs: []string{
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"2a03:4000:7:d080::",
"2a03:4000:7:d080::1",
"fe80::",
"4242::1",
},
},
{
desc: "IPv6 single IP",
whitelistStrings: []string{
"2a03:4000:6:d080::42/128",
},
passIPs: []string{
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"2a03:4000:6:d080::42",
},
rejectIPs: []string{
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"2a03:4000:6:d080::1",
"2a03:4000:6:d080:dead:beef:ffff:ffff",
"2a03:4000:6:d080::43",
},
},
{
desc: "multiple IPv6",
whitelistStrings: []string{
"2a03:4000:6:d080::/64",
"fe80::/16",
},
passIPs: []string{
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"2a03:4000:6:d080::",
"2a03:4000:6:d080::1",
"2a03:4000:6:d080:dead:beef:ffff:ffff",
"2a03:4000:6:d080::42",
"fe80::1",
"fe80:aa00:00bb:4232:ff00:eeee:00ff:1111",
"fe80::fe80",
},
rejectIPs: []string{
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"2a03:4000:7:d080::",
"2a03:4000:7:d080::1",
"4242::1",
},
},
{
desc: "multiple IPv6 & IPv4",
whitelistStrings: []string{
"2a03:4000:6:d080::/64",
"fe80::/16",
"1.2.3.4/24",
"8.8.8.8/8",
},
passIPs: []string{
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"2a03:4000:6:d080::",
"2a03:4000:6:d080::1",
"2a03:4000:6:d080:dead:beef:ffff:ffff",
"2a03:4000:6:d080::42",
"fe80::1",
"fe80:aa00:00bb:4232:ff00:eeee:00ff:1111",
"fe80::fe80",
"1.2.3.1",
"1.2.3.32",
"1.2.3.156",
"1.2.3.255",
"8.8.4.4",
"8.0.0.1",
"8.32.42.128",
"8.255.255.255",
},
rejectIPs: []string{
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"2a03:4000:7:d080::",
"2a03:4000:7:d080::1",
"4242::1",
"1.2.16.1",
"1.2.32.1",
"127.0.0.1",
"4.4.4.4",
"4.8.8.8",
},
},
{
desc: "broken IP-addresses",
whitelistStrings: []string{
"127.0.0.1/32",
},
passIPs: nil,
},
}
for _, test := range cases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
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whiteLister, err := NewIP(test.whitelistStrings)
require.NoError(t, err)
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require.NotNil(t, whiteLister)
for _, testIP := range test.passIPs {
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allowed, ip, err := whiteLister.Contains(testIP)
require.NoError(t, err)
require.NotNil(t, ip, err)
assert.True(t, allowed, testIP+" should have passed "+test.desc)
}
for _, testIP := range test.rejectIPs {
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allowed, ip, err := whiteLister.Contains(testIP)
require.NoError(t, err)
require.NotNil(t, ip, err)
assert.False(t, allowed, testIP+" should not have passed "+test.desc)
}
})
}
}
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func TestBrokenIPs(t *testing.T) {
brokenIPs := []string{
"foo",
"10.0.0.350",
"fe:::80",
"",
"\\&$§&/(",
}
whiteLister, err := NewIP([]string{"1.2.3.4/24"})
require.NoError(t, err)
for _, testIP := range brokenIPs {
_, ip, err := whiteLister.Contains(testIP)
assert.Error(t, err)
require.Nil(t, ip, err)
}
}