330 lines
7.1 KiB
Go
330 lines
7.1 KiB
Go
package ip
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import (
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"net"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestIsAuthorized(t *testing.T) {
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testCases := []struct {
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desc string
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allowList []string
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remoteAddr string
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authorized bool
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}{
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{
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desc: "remoteAddr not in range",
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allowList: []string{"1.2.3.4/24"},
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remoteAddr: "10.2.3.1:123",
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authorized: false,
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},
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{
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desc: "remoteAddr in range",
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allowList: []string{"1.2.3.4/24"},
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remoteAddr: "1.2.3.1:123",
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authorized: true,
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},
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{
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desc: "octal ip in remoteAddr",
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allowList: []string{"127.2.3.4/24"},
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remoteAddr: "0127.2.3.1:123",
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authorized: false,
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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ipChecker, err := NewChecker(test.allowList)
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require.NoError(t, err)
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err = ipChecker.IsAuthorized(test.remoteAddr)
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if test.authorized {
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require.NoError(t, err)
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} else {
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require.Error(t, err)
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}
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})
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}
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}
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func TestNew(t *testing.T) {
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testCases := []struct {
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desc string
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trustedIPs []string
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expectedAuthorizedIPs []*net.IPNet
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errMessage string
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}{
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{
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desc: "nil trusted IPs",
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trustedIPs: nil,
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expectedAuthorizedIPs: nil,
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errMessage: "no trusted IPs provided",
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}, {
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desc: "empty trusted IPs",
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trustedIPs: []string{},
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expectedAuthorizedIPs: nil,
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errMessage: "no trusted IPs provided",
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}, {
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desc: "trusted IPs containing empty string",
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trustedIPs: []string{
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"1.2.3.4/24",
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"",
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"fe80::/16",
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},
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expectedAuthorizedIPs: nil,
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errMessage: "parsing CIDR trusted IPs <nil>: invalid CIDR address: ",
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}, {
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desc: "trusted IPs containing only an empty string",
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trustedIPs: []string{
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"",
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},
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expectedAuthorizedIPs: nil,
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errMessage: "parsing CIDR trusted IPs <nil>: invalid CIDR address: ",
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}, {
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desc: "trusted IPs containing an invalid string",
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trustedIPs: []string{
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"foo",
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},
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expectedAuthorizedIPs: nil,
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errMessage: "parsing CIDR trusted IPs <nil>: invalid CIDR address: foo",
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}, {
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desc: "IPv4 & IPv6 trusted IPs",
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trustedIPs: []string{
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"1.2.3.4/24",
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"fe80::/16",
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},
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expectedAuthorizedIPs: []*net.IPNet{
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{IP: net.IPv4(1, 2, 3, 0).To4(), Mask: net.IPv4Mask(255, 255, 255, 0)},
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{IP: net.ParseIP("fe80::"), Mask: net.IPMask(net.ParseIP("ffff::"))},
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},
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errMessage: "",
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}, {
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desc: "IPv4 only",
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trustedIPs: []string{
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"127.0.0.1/8",
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},
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expectedAuthorizedIPs: []*net.IPNet{
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{IP: net.IPv4(127, 0, 0, 0).To4(), Mask: net.IPv4Mask(255, 0, 0, 0)},
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},
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errMessage: "",
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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ipChecker, err := NewChecker(test.trustedIPs)
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if test.errMessage != "" {
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require.EqualError(t, err, test.errMessage)
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} else {
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require.NoError(t, err)
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for index, actual := range ipChecker.authorizedIPsNet {
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expected := test.expectedAuthorizedIPs[index]
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assert.Equal(t, expected.IP, actual.IP)
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assert.Equal(t, expected.Mask.String(), actual.Mask.String())
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}
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}
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})
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}
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}
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func TestContainsIsAllowed(t *testing.T) {
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testCases := []struct {
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desc string
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trustedIPs []string
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passIPs []string
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rejectIPs []string
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}{
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{
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desc: "IPv4",
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trustedIPs: []string{"1.2.3.4/24"},
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passIPs: []string{
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"1.2.3.1",
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"1.2.3.32",
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"1.2.3.156",
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"1.2.3.255",
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},
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rejectIPs: []string{
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"1.2.16.1",
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"1.2.32.1",
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"127.0.0.1",
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"8.8.8.8",
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},
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},
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{
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desc: "IPv4 single IP",
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trustedIPs: []string{"8.8.8.8"},
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passIPs: []string{"8.8.8.8"},
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rejectIPs: []string{
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"8.8.8.7",
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"8.8.8.9",
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"8.8.8.0",
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"8.8.8.255",
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"4.4.4.4",
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"127.0.0.1",
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},
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},
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{
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desc: "IPv4 Net single IP",
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trustedIPs: []string{"8.8.8.8/32"},
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passIPs: []string{"8.8.8.8"},
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rejectIPs: []string{
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"8.8.8.7",
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"8.8.8.9",
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"8.8.8.0",
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"8.8.8.255",
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"4.4.4.4",
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"127.0.0.1",
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},
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},
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{
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desc: "multiple IPv4",
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trustedIPs: []string{"1.2.3.4/24", "8.8.8.8/8"},
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passIPs: []string{
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"1.2.3.1",
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"1.2.3.32",
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"1.2.3.156",
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"1.2.3.255",
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"8.8.4.4",
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"8.0.0.1",
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"8.32.42.128",
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"8.255.255.255",
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},
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rejectIPs: []string{
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"1.2.16.1",
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"1.2.32.1",
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"127.0.0.1",
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"4.4.4.4",
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"4.8.8.8",
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},
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},
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{
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desc: "IPv6",
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trustedIPs: []string{"2a03:4000:6:d080::/64"},
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passIPs: []string{
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"2a03:4000:6:d080::",
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"2a03:4000:6:d080::1",
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"2a03:4000:6:d080:dead:beef:ffff:ffff",
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"2a03:4000:6:d080::42",
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},
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rejectIPs: []string{
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"2a03:4000:7:d080::",
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"2a03:4000:7:d080::1",
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"fe80::",
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"4242::1",
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},
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},
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{
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desc: "IPv6 single IP",
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trustedIPs: []string{"2a03:4000:6:d080::42/128"},
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passIPs: []string{"2a03:4000:6:d080::42"},
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rejectIPs: []string{
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"2a03:4000:6:d080::1",
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"2a03:4000:6:d080:dead:beef:ffff:ffff",
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"2a03:4000:6:d080::43",
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},
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},
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{
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desc: "multiple IPv6",
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trustedIPs: []string{"2a03:4000:6:d080::/64", "fe80::/16"},
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passIPs: []string{
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"2a03:4000:6:d080::",
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"2a03:4000:6:d080::1",
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"2a03:4000:6:d080:dead:beef:ffff:ffff",
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"2a03:4000:6:d080::42",
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"fe80::1",
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"fe80:aa00:00bb:4232:ff00:eeee:00ff:1111",
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"fe80::fe80",
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},
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rejectIPs: []string{
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"2a03:4000:7:d080::",
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"2a03:4000:7:d080::1",
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"4242::1",
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},
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},
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{
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desc: "multiple IPv6 & IPv4",
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trustedIPs: []string{"2a03:4000:6:d080::/64", "fe80::/16", "1.2.3.4/24", "8.8.8.8/8"},
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passIPs: []string{
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"2a03:4000:6:d080::",
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"2a03:4000:6:d080::1",
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"2a03:4000:6:d080:dead:beef:ffff:ffff",
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"2a03:4000:6:d080::42",
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"fe80::1",
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"fe80:aa00:00bb:4232:ff00:eeee:00ff:1111",
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"fe80::fe80",
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"1.2.3.1",
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"1.2.3.32",
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"1.2.3.156",
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"1.2.3.255",
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"8.8.4.4",
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"8.0.0.1",
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"8.32.42.128",
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"8.255.255.255",
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},
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rejectIPs: []string{
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"2a03:4000:7:d080::",
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"2a03:4000:7:d080::1",
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"4242::1",
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"1.2.16.1",
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"1.2.32.1",
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"127.0.0.1",
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"4.4.4.4",
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"4.8.8.8",
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},
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},
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{
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desc: "broken IP-addresses",
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trustedIPs: []string{"127.0.0.1/32"},
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passIPs: nil,
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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ipChecker, err := NewChecker(test.trustedIPs)
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require.NoError(t, err)
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require.NotNil(t, ipChecker)
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for _, testIP := range test.passIPs {
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allowed, err := ipChecker.Contains(testIP)
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require.NoError(t, err)
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assert.Truef(t, allowed, "%s should have passed.", testIP)
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}
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for _, testIP := range test.rejectIPs {
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allowed, err := ipChecker.Contains(testIP)
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require.NoError(t, err)
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assert.Falsef(t, allowed, "%s should not have passed.", testIP)
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}
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})
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}
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}
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func TestContainsBrokenIPs(t *testing.T) {
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brokenIPs := []string{
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"foo",
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"10.0.0.350",
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"fe:::80",
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"",
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"\\&$§&/(",
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}
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ipChecker, err := NewChecker([]string{"1.2.3.4/24"})
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require.NoError(t, err)
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for _, testIP := range brokenIPs {
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_, err := ipChecker.Contains(testIP)
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assert.Error(t, err)
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}
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}
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